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Sample records for acquisition system based

  1. PC based 8-parameter data acquisition system

    Multiparameter data acquisition (MPA) systems which analyse nuclear events with respect to more than one property of the event are essential tools for the study of some complex nuclear phenomena requiring analysis of time coincident spectra. For better throughput and accuracy each parameter is digitized by its own ADC. A stand alone low cost IBM PC based 8-parameter data acquisition system developed by the authors makes use of Address Recording technique for acquiring data from eight 12 bit ADC's in the PC Memory. Two memory buffers in the PC memory are used in ping-pong fashion so that data acquisition in one bank and dumping of data onto PC disk from the other bank can proceed simultaneously. Data is acquired in the PC memory through DMA mode for realising high throughput and hardware interrupt is used for switching banks for data acquisition. A comprehensive software package developed in Turbo-Pascal offers a set of menu-driven interactive commands to the user for setting-up system parameters and control of the system. The system is to be used with pelletron accelerator. (author). 5 figs

  2. A WBAN based cableless ECG acquisition system.

    Pan, Rui; Chua, Dingjuan; Pathmasuntharam, Jaya Shankar; Xu, Yong Ping

    2014-01-01

    A Wireless Body Area Network (WBAN) based 3-lead cableless electrocardiography (ECG) acquisition system is described. To enable truly cableless ECG monitoring, a new ECG measurement configuration and method that acquires ECG signals at individual lead locations referenced to a localized ground is proposed. The synthesized ECG signals are evaluated against the standard wired 3-lead configuration on the same test subject. Average Pearson correlation coefficients of 0.82, 0.95 and 0.86 have been achieved for Lead I, II and III signals respectively, demonstrating a high degree of similarity in the synthesized signals. Measurements are obtained via a custom wireless network platform utilizing a TDMA-based MAC protocol supporting the star topology and a proprietary front-end ECG acquisition system. PMID:25570107

  3. Optoelectronic date acquisition system based on FPGA

    Li, Xin; Liu, Chunyang; Song, De; Tong, Zhiguo; Liu, Xiangqing

    2015-11-01

    An optoelectronic date acquisition system is designed based on FPGA. FPGA chip that is EP1C3T144C8 of Cyclone devices from Altera corporation is used as the centre of logic control, XTP2046 chip is used as A/D converter, host computer that communicates with the date acquisition system through RS-232 serial communication interface are used as display device and photo resistance is used as photo sensor. We use Verilog HDL to write logic control code about FPGA. It is proved that timing sequence is correct through the simulation of ModelSim. Test results indicate that this system meets the design requirement, has fast response and stable operation by actual hardware circuit test.

  4. Microprocessor (INTEL 8085) based data acquisition system

    A data acquisition system for nuclear pulse analysis using a powerful 8-bit microprocessor viz. Intel 8085 has been described. The system has Seiko printer and Floopy disk drive as peripherals besides having a built-in CRT for spectral and parametric display viz. cursor position, data, live time, integration etc. Modularity and system architecture leaves scope for upgradation. (author)

  5. WMN-based city traffic information acquisition system

    2007-01-01

    Traffic information acquisition system is an essential part of the intelligent transportation system (ITS). This paper presents a novel traffic information acquisition system, i.e., a dynamic traffic information acquisition system based on wireless mesh networks (WMN). The system comprises of probe vehicles and wireless mesh networks. Compared to the conventional systems, it is independent of other network infrastructures and easy to implement. It can acquire the real-time traffic information correctly with lower cost.

  6. Nuclear spectrometry data acquisition system based on LabVIEW

    The whole process of designing nuclear spectrometry data acquisition system was particularized with LabVIEW and data acquisition board, based on virtual instrument technology. It can analyze the output of the radiation detector and give the height spectrum by the method of the continuous real-time data acquisition and the abstraction of pulse signal amplitude. The simple test shows that this system can meet the demand, and it can be easily expanded according to the situation. (authors)

  7. A laboratory data acquisition system based on digital oscilloscope

    Using a VXI-11 protocol based on digital oscilloscope, a laboratory-oriented data acquisition system could be constructed quickly and expediently without special or standard electronics. The authors used it in single muon calibration of scintillator detectors. (authors)

  8. Data acquisition system based on PXI-5105 scope card

    The data acquisition and analysis system for the detector system test of the proton-induced spallation (PISA) experimental project was developed based on PXI-5105 scope card. The maximum sample rate of the system can be up to 60 M/s, and it can capture the width of the order of microsecond waveform signals. The system was controlled by using a user-friendly graphical interface (GUI) on a Windows XP operation system. The online display and analysis code were based on the ROOT framework. The tests show that the system is reliable. The maximum data acquisition rate of 50 MB/s is achieved. (authors)

  9. ARM Processor Based Embedded System for Remote Data Acquisition

    Raj Kumar Tiwari

    2014-01-01

    Full Text Available The embedded systems are widely used for the data acquisition. The data acquired may be used for monitoring various activity of the system or it can be used to control the parts of the system. Accessing various signals with remote location has greater advantage for multisite operation or unmanned systems. The remote data acquisition used in this paper is based on ARM processor. The Cortex M3 processor used in this system has in-built Ethernet controller which facilitate to acquire the remote data using internet. The system developed provides high performance, low power consumption, smaller size {&} high speed

  10. Microcontroller based data acquisition system for silicon photomultiplier detectors

    Silicon photomultpiliers are robust, low voltage sensors capable of measuring low light levels. They are well suited for use in a cosmic ray detector using scintillator embedded with wavelength shifting fibre, designed for lab based and high altitude cosmic ray experiments. The development of such a detector, using an ARM Cortex M3 microcontroller based data acquisition system is discussed.

  11. Development of data acquisition software for VME based system

    A data acquisition system for VME has been developed for use in accelerator based experiments. The development was motivated by the growing demand for higher throughput in view of the increasing size of experiments. VME based data acquisition system provides a powerful alternative to CAMAC standards on account of higher readout speeds (100 ns/word) resulting in reduced dead time. Further, high density VME modules are capable of providing up to 640 channels in a single VME crate with 21 slots. The software system LAMPS, earlier developed for CAMAC based system and used extensively in our laboratory and elsewhere has been modified for the present VME based system. The system makes use of the VME library to implement Chain Block Transfer Readout (CBLT) and gives the option of both Polling and Interrupt mode to acquire data. Practical throughput of ∼ 250 ns/word in zero suppressed mode has been achieved. (author)

  12. The implement of java based GUI for data acquisition system

    Web based technique have been used to produce a Graphic User Interface framework for small Data Acquisition System. A CORBA library used for the communication with the JRCS servers. The GUI was implemented by Java Swing. the integration between Java and CORBA provide a powerful independent distributed environment. (authors)

  13. The wireless data acquisition system based on Bluetooth

    Cheng, En; Xu, Xiao-na; Wu, Si-long

    2013-03-01

    Bluetooth is one of the wireless communication technology, which is developing rapidly in recent years. As a result of low cost and short distance, Bluetooth can set up a special connection for portable electronic devices and stationary electronic equipment communication environment. The paper studies a data acquisition system based on Bluetooth. The system can collect the angle of motor rotation and send it to the Receiver through the Bluetooth. The results show that the system can be run normal.[1

  14. Multifunctional data acquisition system based on USB and FPGA

    A multifunctional data acquisition system based on USB and FPGA was developed. The system has four analog inputs digitalized by fast ADC. Based on flexibility of FPGA, different functions can be implemented such as waveform sampling, pulse counting, multi-channel pulse height analysis, and charge division readout process. The hardware communicates with host PC via USB interface. The Labview based user soft ware initializes the hardware, configures the running parameters, reads and processes the data as well as displays the result online. (authors)

  15. A personal computer-based, multitasking data acquisition system

    Bailey, Steven A.

    1990-01-01

    A multitasking, data acquisition system was written to simultaneously collect meteorological radar and telemetry data from two sources. This system is based on the personal computer architecture. Data is collected via two asynchronous serial ports and is deposited to disk. The system is written in both the C programming language and assembler. It consists of three parts: a multitasking kernel for data collection, a shell with pull down windows as user interface, and a graphics processor for editing data and creating coded messages. An explanation of both system principles and program structure is presented.

  16. Simulation Based Acquisition for NASA's Office of Exploration Systems

    Hale, Joe

    2004-01-01

    In January 2004, President George W. Bush unveiled his vision for NASA to advance U.S. scientific, security, and economic interests through a robust space exploration program. This vision includes the goal to extend human presence across the solar system, starting with a human return to the Moon no later than 2020, in preparation for human exploration of Mars and other destinations. In response to this vision, NASA has created the Office of Exploration Systems (OExS) to develop the innovative technologies, knowledge, and infrastructures to explore and support decisions about human exploration destinations, including the development of a new Crew Exploration Vehicle (CEV). Within the OExS organization, NASA is implementing Simulation Based Acquisition (SBA), a robust Modeling & Simulation (M&S) environment integrated across all acquisition phases and programs/teams, to make the realization of the President s vision more certain. Executed properly, SBA will foster better informed, timelier, and more defensible decisions throughout the acquisition life cycle. By doing so, SBA will improve the quality of NASA systems and speed their development, at less cost and risk than would otherwise be the case. SBA is a comprehensive, Enterprise-wide endeavor that necessitates an evolved culture, a revised spiral acquisition process, and an infrastructure of advanced Information Technology (IT) capabilities. SBA encompasses all project phases (from requirements analysis and concept formulation through design, manufacture, training, and operations), professional disciplines, and activities that can benefit from employing SBA capabilities. SBA capabilities include: developing and assessing system concepts and designs; planning manufacturing, assembly, transport, and launch; training crews, maintainers, launch personnel, and controllers; planning and monitoring missions; responding to emergencies by evaluating effects and exploring solutions; and communicating across the OEx

  17. CAMAC data acquisition system based on micro VAXII

    The CAMAC data acquisition system based on Micro VAXII Computer provides high-speed, Zero-suppressed, and 256-parameter CAMAC acquisition. It consists of three parts: control logic unit, CAMAC readout system and host computer system. When the control logical unit is triggered by external electronic selection signal, it produces a pilot signal to keep all of the parameters of a particular event together. Event-model data have been collected by using a CAMAC Fast Crate controller. The host computer system, in hard environment, is equipped with certain peripheral device. It includes the following: 1. at least two M990 GCR, 6250B/inch, magnetic tape driver operating at 75 inches per second or faster; 2. a Tektronix 4014 storage scope; 3. a laser printer, LND3-AE or copier which is capable of making hard-copies of Tektronix 4014 screen; 4. a control console device and a line printer; 5. x-press color graphics terminal; 6. DEC network. When the system is in real-time acquisition, it is able, on-line, to handle and analyse data stream, to monitor and control experiment and to display dynamically spectra on the Tektronix 4014

  18. How Cisco Systems Used Enterprise Architecture Capability to Sustain Acquisition-Based Growth

    Toppenberg, Gustav; Shanks, Graeme; Henningsson, Stefan

    2015-01-01

    Value-creating acquisitions are a major challenge for many firms. The case of Cisco Systems shows that an advanced enterprise architecture (EA) capability can contribute to the four phases of the acquisition process: pre-acquisition preparation, acquisition selection, acquisition integration and...... post-integration management. Cisco’s EA capability improves its ability to rapidly capture value from acquisitions and to sustain its acquisition-based growth strategy over time....

  19. Panoramic dynamic data acquisition system based on unmanned helicopter

    Yao, Yigang; Zhao, Shuguang; Lin, Zhaorong; Wen, Gaojin; Zhang, Qian; Zhang, Weiwei

    2012-10-01

    In recent years, the archaeological tourism has rapidly been developed all over the world, and it has become more and more popular. However, the scope of the human activities has been restricted by complicated geographical terrain, and the popularization of archaeological tourism has been hampered. For the purpose of solving the above problem, the archaeological tourism system of the panoramic dynamic data acquisition system based on unmanned helicopter is designed, and we got the image of the Chinese Ming Dynasty Great Wall realtime 360˚ panoramic dynamic monitor. The applying of this system will increase the scope of the archaeological tourism activities.

  20. FPGA based data acquisition system for COMPASS experiment

    This paper presents the current data acquisition system (DAQ) of the COMPASS experiment at CERN and discusses development of a new DAQ. The aim of the new DAQ is to substitute software event building by structure composed of special FPGA cards that will do the event building. The software part of the new DAQ is robust multinode system with high emphasis on reliability. It is based on state machines and implemented in C++ with usage of the QT framework, the DIM library, and the IPBus technology. A prototype of the system has been developed and tested. The new DAQ software fulfills given requirements.

  1. Network Based Data Acquisition and Logging System using PIC Microcontroller

    Tarun Kumar Sharma; Padmakar Singh Parihar

    2014-01-01

    This paper presents the design and implementation of a multi-channel data acquisition and logging system which can be used in a variety of applications. The designed data acquisition and logging system uses analog multiplexer, a bipolar analog to digital converter, a voltage reference and an SD card. The device is developed around PIC Microcontroller. The most important feature of the device which makes it different from other data acquisition devices is the presence of the Ethernet port. Thi...

  2. Distributed CAN-BUS-based data acquisition system

    A distributed remote-control system for large nuclear physical setups is intended to collect, store, and analyze data arriving from detecting devices and to visualize them via the WEB. The system uses the CAN industrial data transmission network and the DeviceNet high-level protocol. The hardware part is the set of controllers, which convert signals of the detecting devices into a frequency and transmit them in the digital form via the CAN network to the host computer. The software realizes the DeviceNet protocol stack, which ensures the data acquisition and transmission. The user interface is based on dynamic WEB pages. The system is used for monitoring dark noises of photomultiplier tubes in the BOREXINO neutrino detector (Italy)

  3. Network Based Data Acquisition and Logging System using PIC Microcontroller

    Tarun Kumar Sharma

    2014-03-01

    Full Text Available This paper presents the design and implementation of a multi-channel data acquisition and logging system which can be used in a variety of applications. The designed data acquisition and logging system uses analog multiplexer, a bipolar analog to digital converter, a voltage reference and an SD card. The device is developed around PIC Microcontroller. The most important feature of the device which makes it different from other data acquisition devices is the presence of the Ethernet port. This feature enables it to work in networked environment. The performance of the device is tested and crosschecked. The present data acquisition and logging system is expected to be very useful to varieties of our own developmental projects, given its ability to locally store data and availability of general purpose digital I/O.

  4. A microprocessor-based power control data acquisition system

    The project reported deals with one of the aspects of power plant control and management. In order to perform optimal distribution of power and load switching, one has to solve a specific optimization problem. In order to solve this problem one needs to collect current and power expenditure data from a large number of channels and have them processed. This particular procedure is defined as data acquisition and it constitutes the main topic of this project. A microprocessor-based data acquisition system for power management is investigated and developed. The current and power data of about 100 analog channels are sampled and collected in real-time. These data are subsequently processed to calculate the power factor (cos phi) for each channel and the maximum demand. The data is processed by an AMD 9511 Arithmetic Processing Unit and the whole system is controlled by an Intel 8080A CPU. All this information is then transfered to a universal computer through a synchronized communication channel. The optimization computations would be performed by the high level computer. Different ways of performing the search of data over a large number of channels have been investigated. A particular solution to overcome the gain and offset drift of the A/D converter, using software, has been proposed. The 8080A supervises the collection and routing of data in real time, while the 9511 performs calculation, using these data. (Author)

  5. A LabVIEW- based wind tunnel data acquisition system

    Huff, Michael R.

    1998-01-01

    Approved for public release; distribution is unlimited The NPS Aerolab Low Speed Wind Tunnel located in Halligan Hall of the Navy Postgraduate School has been in operation since 1953. Although the tunnel is well maintained, its data acquisition system has not kept pace with modem technology. An effective but affordable solution for acquiring data was needed. It was determined that a software package known as LabVIEW would provide a low cost, data acquisition solution that will enhance the ...

  6. A Java-based data acquisition system for nuclear physics

    Jam is a Java-based user-friendly data acquisition and analysis system developed for CAMAC-based nuclear physics experiments. The system is menu-driven and has been designed to minimize the expertise needed to perform the essential tasks necessary to collect and sort data. The front-end hardware is VME based and includes a MVME167 running VxWorks, which is networked to a Sun workstation. The sorting, display, and control routines are all written in Java, and the front-end code is written in C. With a Sparc 5 workstation, events with 10 parameters, 15 histograms, and 10 gate checks the system can collect and sort data up to event rates of 1 kHz. By only sorting a fraction of the events, but storing all events, it can be run at the front-end limit of 10 kHz. Java's promise of platform independence has been found to be realistic, and Jam has been used with no modifications to sort offline on multiple platforms. Jam has a modular design allowing it to be easily modified. For example, Jam has an interface to allow users to write their own fitting routines. This article discusses the system's design and performance, as well as some advantages and disadvantages of using Java

  7. The Data Acquisition System Based on PMC Bus

    Igarashi, Y; Higuchi, T; Ikeno, M; Inoue, E; Itoh, R; Kodama, H; Murakami, T; Nagasaka, Y; Nakao, M; Nakayoshi, K; Saitoh, M; Shimazaki, S; Suzuki, S Y; Tanaka, M; Tauchi, K; Varner, G; Yamauchi, M; Yasu, Y; Katayama, T; Watanabe, K; Ishizuka, M; Onozawa, S

    2003-01-01

    High energy physics experiments in KEK/Japan rush into over KHz trigger stage. Thus, we need a successor of the data acquisition(DAQ) system that replaces the CAMAC or FASTBUS systems. To meet these needs, we have developed a DAQ system which includes a crate, base-board modules, daughter cards for front-end A/D or T/D conversion, and back-end communication cards for data transfer and timing control. The size of the crate is for the 9U Euro-cards with the standard VME32 bus and extension connectors for power supply. The base-board comprises of a local bus with the sequencer connected to the front-end daughter cards via event buffering FIFOs, and the standard PMC (PCI mezzanine card) bus to be set a PMC processor unit to reduce data size from the front-end daughter cards. A data transfer module, which is connected to the event building system, and a trigger control unit, which communicates with the central timing controller are installed on the back-end communication card connected to the rear end of the base-...

  8. Data acquisition system based on the 15 VSM-5 microcomputer

    Data acquisition system based on the programmable 15 vsm-5 microcomputer is described. Data are accepted from transducers and recorded on a magnetic tape for subsequent processing on the BESM-6 computer. The system comprises transducers, signal commutator, analog-to-digital converter (ADC), magnetic tape recorder ''Majak-203'', the ''CONSUL-260'' printer and is controlled by specially developed microprograms placed in a 15 VCM-5, permanent memory device. Magnetic tape recording reading unit and interface are developed through which microprograms control the whole system. Besides transducer data, two control numbers corresponding to ''zero'' and middle of the range of accepted from the ADC numbers are recorded on the magnetic tape. An means of control numbers the ADC reading drift is determined and corrected at processing. For ensuring data reliability the recorded data are controlled. The minimum inquiry period is 5 ms for each transducer. The magnetic tape can be used for recording dode digit binary or hexadigit binary-decimal codes. The measuring accuracy is determined by ADC accuracy and equals 0.2%

  9. A camac data acquisition system based on PC-Linux

    A multi-parametric data acquisition system for Nuclear Physics experiments using camac instrumentation on a personal computer with the Linux operating system in described. The system is very reliable, inexpensive and is capable of handling event rates up to 4-6 k events/s. In the present version, the maximum number of parameters to be acquired is limited only by the number of camac modules that can be fitted in one camac crate

  10. Knowledge-acquisition tools for medical knowledge-based systems.

    Lanzola, G; Quaglini, S; Stefanelli, M

    1995-03-01

    Knowledge-based systems (KBS) have been proposed to solve a large variety of medical problems. A strategic issue for KBS development and maintenance are the efforts required for both knowledge engineers and domain experts. The proposed solution is building efficient knowledge acquisition (KA) tools. This paper presents a set of KA tools we are developing within a European Project called GAMES II. They have been designed after the formulation of an epistemological model of medical reasoning. The main goal is that of developing a computational framework which allows knowledge engineers and domain experts to interact cooperatively in developing a medical KBS. To this aim, a set of reusable software components is highly recommended. Their design was facilitated by the development of a methodology for KBS construction. It views this process as comprising two activities: the tailoring of the epistemological model to the specific medical task to be executed and the subsequent translation of this model into a computational architecture so that the connections between computational structures and their knowledge level counterparts are maintained. The KA tools we developed are illustrated taking examples from the behavior of a KBS we are building for the management of children with acute myeloid leukemia. PMID:9082135

  11. A Linux based data acquisition system at NSC

    A new on-line data acquisition system has been developed for handling the data generated by experiments conducted using the 15 MV Tandem accelerator at Nuclear Science Centre (NSC). The system consists of a network of Pentiums running Linux connected to a CAMAC branch highway, using KSC3922 Crate controllers and KSC2927 AT interface card. Hytec LP1340 list processor module is used for hardware buffering of data. The system has been tested and found to be capable of handling event data rates up to 400 k bytes per second. (author). 4 refs., 2 figs

  12. A Multi-parameter Data Acquisition and Analysis System Based on Open VMS Operation System

    2001-01-01

    We fall into disuse the JUHU system based on the PDP/11 computer for RSX11M operation system,and update our multi-parameter data aequisition and analysis system’s hardware and software based on VAXII computer and Open VMS operation system,make it adapted to the recent physics experiment.In this paper,we describe the updated inulti-parameter data acquisition and analysis system’s hardware,software configuration and system function.

  13. PSoC based data acquisition system for a scanning spectrometer

    Programmable System on Chip (PSoC) based systems offer low cost embedded solutions for instrument control and data acquisition for analytical instrumentation. This paper outlines employment of cypress CY8C29466 chip to develop a data acquisition system for a scanning spectrometer. (author)

  14. The design of acquisition system for high-energy X-ray ICT based on FPGA

    With the theory and characteristic of the high-energy X-ray ICT's data acquisition system,the structure of the data acquisition system is introduced, and explains the controlling arithmetic for the integrator IVC102 and A/D convertor AD7679, which is based on FPGA. (authors)

  15. Microprocessor based dual bus structured data acquisition and processing system : DAPS-80

    The microprocessor based dual bus structured data acquisition and processing system has been designed around Intel 8080 microprocessor. The system is described and operational results are given. (M.G.B.)

  16. Use of PC based data acquisition systems, connected to reactor shutdown system No. 1 and 2

    The intention of this material is to present the experience in use and future development of PC Based Data Acquisition Systems (DAS), connected to Reactor Shutdown System (SDS) number 1 and number 2, at Cernavoda Nuclear Power Plant (NPP) Unit 1 (U1). Two major aspects, regarding the purpose of using DAS, are the subject of the material: post-event analysis and system impairments evaluation; economic penalties reduced. (author)

  17. A UMLS-based knowledge acquisition tool for rule-based clinical decision support system development.

    Achour, Soumeya,; Dojat, Michel; Rieux, Claire; Bierling, Philippe; Lepage, Eric

    2001-01-01

    International audience Decision support systems in the medical field have to be easily modified by medical experts themselves. The authors have designed a knowledge acquisition tool to facilitate the creation and maintenance of a knowledge base by the domain expert and its sharing and reuse by other institutions. The Unified Medical Language System (UMLS) contains the domain entities and constitutes the relations repository from which the expert builds, through a specific browser, the expl...

  18. LoFASM's FPGA-based Digital Acquisition System

    Dartez, Louis P.; Jenet, F.; Creighton, T. D.; Ford, A. J.; Hicks, B.; Hinojosa, J.; Kassim, N. E.; Price, R. H.; Stovall, K.; Ray, P. S.; Taylor, G. B.

    2014-01-01

    The Low Frequency All Sky Monitor (LoFASM) is a distributed array of dipole antennas that are sensitive to radio frequencies from 10 to 88 MHz. LoFASM consists of antennas and front end electronics that were originally developed for the Long Wavelength Array (LWA) by the U.S. Naval Research Lab, the University of New Mexico, Virginia Tech, and the Jet Propulsion Laboratory. LoFASM, funded by the U.S. Department of Defense, will initially consist of 4 stations, each consisting of 12 dual-polarization dipole antenna stands. The primary science goals of LoFASM will be the detection and study of low-frequency radio transients, a high priority science goal as deemed by the National Research Council's decadal survey. The data acquisition system for the LoFASM antenna array will be using Field Programmable Gate Array (FPGA) technology to implement a real time full Stokes spectrometer and data recorder. This poster presents an overview of the current design and digital architecture of a single station of the LoFASM array as well as the status of the entire project.

  19. The design of virtual double-parameter nuclear spectrum acquisition system based on LabVIEW

    This paper introduces the design of virtual double-parameter nuclear spectrum acquisition system based on LabVIEW and NI multifunction DAQ board, and the use of it to measure the double-parameter nuclear spectrum

  20. Neutron flux density data acquisition system based on LabVIEW

    In the LabVIEW software, combined with PCI-6251 data acquisition card, VI of neutron flux density data acquisition is realized by DAQmx data acquisition functions. VI is composed of front panel and block diagram. The data collected can be displayed in the forms of the data curve and the data control, and saved in the form of files. Test results show that the frequency of output signal in NI ELVIS can be accurately measured by the system, realizing neutron flux density data acquisition based on LabVIEW. (authors)

  1. VME-based data acquisition system for the India-based Neutrino Observatory prototype detector

    The India-based Neutrino Observatory (INO) collaboration has proposed to build a 50 kton Iron-Calorimeter (ICAL) to study neutrino oscillations. About 28,800 Resistive Plate Chambers will be used as active detector elements in this experiment. Preliminary studies are currently underway and as a part of it, a prototype detector was developed which now serves as a cosmic-ray telescope and as a test-bench to study the indigenously built RPCs. A VME-based data acquisition system was designed for this prototype system. Modern software tools were used in the designing of the DAQ software. The design and development of this DAQ system are discussed.

  2. A data acquisition system based on CCU-CAMAC crate controller and IBM/PC computer

    A data acquisition system is described which based on a CCU-CAMAC crate controller and IBM/PC micro-computer. The software has been written in C language. The system can perform following tasks: multi-parameter data acquisition, disk data storage in list event mode or accumulation spectrum mode, construction of 1-2 dimensional spectra and on-line display. The system supports the hardcopy and hot key

  3. Distributed SCI-based data acquisition systems constructed from SCI bridges and SCI switches

    The IEEE standard 1596-1992, Scalable Coherent Interface (SCI) provides novel possibilities to build data acquisition systems for large and very high rate experiments in high energy physics. The RD24 project at CERN started two years ago to investigate applications of SCI to data acquisition at the Large Hadron Collider (LHC). As part of the RD24 project, simulation of large SCI-based data acquisition systems is performed by a simulator written in the object-oriented language MODSIM II. The goal of this paper is to investigate the difference between SCI switch- and SCI-based systems, and to study some of the design criteria for the SCI switch element to form the interconnection of large scale SCI-based data acquisition systems. 15 refs., 14 figs., 2 tabs

  4. Calo trigger acquisition system

    Franchini, Matteo

    2016-01-01

    Calo trigger acquisition system - Evolution of the acquisition system from a multiple boards system (upper, orange cables) to a single board one (below, light blue cables) where all the channels are collected in a single board.

  5. Nuclear spectrometry signal acquisition and processing system based on LabVIEW and C

    The process of designing nuclear spectrometry signal acquisition and processing system based on virtual instrument technology is showed in this article. For the deficiency of LabVIEW in big data analyzing and processing, a method is presented in which C programmer is inserted and applied in signal smoothing, peak searching and area of the peak calculating. A complete nuclear spectrometry signal acquisition, processing and document management system is implemented. (authors)

  6. Report on a field-portable VME-based distributed data acquisition system

    A development effort was started two years ago to develop a portable data acquisition system which could be used for performing arms control verification and environmental monitoring measurements with complex multi-detector systems in the field. A field portable data acquisition system has been developed around a VMEbus based micro-processor and standard TCP/IP network protocols. The hardware consists of a compact VME crate and a single CAMAC crate containing the signal processing electronics. The component processes of the data acquisition system transfer control and event data over a set of TCP/IP socket connections. The use of network sockets for the interprocess communications allows the data acquisition system to be operated transparently on one workstation or on a number of workstations distributed around a local network

  7. Electronics and data acquisition system for the ICAL prototype detector of India-based neutrino observatory

    The India-based Neutrino Observatory (INO) collaboration has proposed to build a 50 kton magnetized Iron Calorimeter (ICAL) detector with the primary goal to study neutrino oscillations, employing Resistive Plate Chambers (RPCs) as active detector elements. A prototype of the ICAL detector has been built in order to develop and characterize the intrinsic sub-systems, like RPCs, gas system, electronics and data acquisition system, etc. This paper describes in detail the readout electronics as well as the VME-based data acquisition system for the prototype detector.

  8. High resolution (GC/MS) mass spectrometer data acquisition and processing system based on microcomputer

    A high resolution (GC/MS) mass spectrometer data acquisition and processing system based on IBM-PC/AT is introduced in this paper. Its hardware design and system software are described simply, and a comparison between two measurement results on standard samples PFK obtained with this system and minicomputer is given

  9. Data acquisition system for linear position sensitive detector based neutron diffractometer

    This data acquisition system is developed to serve the requirements of various linear 1PSD based neutron diffractometers. A neutron diffractometer uses a neutron beam as a probe to study the crystallographic properties of materials. Presently two multi-PSD and two single-PSD diffractometers are commissioned and a few more are being installed in Dhruva. This data acquisition system is installed at each of these - diffractometers. Different requirements of individual diffractometers were studied and reconciled to design a single data acquisition system, which can be easily configured or customized for individual setups. The charge division in a linear PSD is converted to a position output with the help of an RDC (Ratio ADC). The ftont-end electronics, which consist of preamplifiers and shaping amplifiers, provide an interface between a PSD and an RDC. A PC add-on card is designed around a Transputer. It can interface 16 RDCs, a few motor controls and on/off controls. Data acquisition and other controls are implemented in the Transputer program. A front-end Windows98 application merges the raw data of different RDCs to obtain the equiangular data. Through software the data acquisition system can be configured for diffetent diffractometers. Commercially available hardware is also integrated as,a part of the data acquisition system in some of the setups. The data acquisition system is working reliably as a part of two single PSD and two multi-PSD diffractometers. It can handle data rates upto 15 K/Sec without any loss of counts. It has played a significant role in providing improved throughput and utilization ofvarious diffractometers. The'data acquisition system and its different applications are presented in this report. (author)

  10. Design of Tokamak synchronous data acquisition system based on PXI express

    With the development of J-TEXT device, the original data acquisition system can't meet the experiment's requirement on stability, modularity and sampling rate, so a new data acquisition system needs to be built. This paper introduces the design and implementation of the distributed Tokamak synchronous high-speed data acquisition system based on PXI Express. The acquisition unit consists of PXIe case Nl PXIe 1062Q, PXIe controller NI PXIe-8133 and high-speed synchronous data acquisition card Nl PXIe-6368, compatible with the latest standard of ITER CODAC, so it has good mechanical sealing, strong modularity and high sampling rate etc. The system takes a synchronous difference acquisition for diagnosis signal. The data storage adopts MDSplus which is the general database in the nuclear fusion field. The test and experimental results show that the system can work continuously and stably at 2 MSps sampling rate, and meet the requirement of experiment device's operation well. (authors)

  11. Design and realization of GUI for data acquisition system based on Qt in Linux

    It introduces the design and realization of GUI for data acquisition system of High Intensity Powder Diffractometer (HIPD) model machine system, which is a R and D project of China Spallation Neutron Source (CSNS). It mainly describes a developing method of GUI for data acquisition system based on Qt in Linux system. Firstly, the front-end readout program of VME controller is introduced, and then the paper specifically discusses the basic design and realization methods of GUI program in Host machine. At last the testing methods and results of this application program are given as a proof of its stability. (authors)

  12. A PC-Linux-based data acquisition system for the STAR TOFp detector

    Commodity hardware running the open source operating system Linux is playing various important roles in the field of high energy physics. This paper describes the PC-Linux-based Data Acquisition System of STAR TOFp detector. It is based on the conventional solutions with front-end electronics made of NIM and CAMAC modules controlled by a PC running Linux. The system had been commissioned into the STAR DAQ system, and worked successfully in the second year of STAR physics runs

  13. Course Ontology-Based User's Knowledge Requirement Acquisition from Behaviors within E-Learning Systems

    Zeng, Qingtian; Zhao, Zhongying; Liang, Yongquan

    2009-01-01

    User's knowledge requirement acquisition and analysis are very important for a personalized or user-adaptive learning system. Two approaches to capture user's knowledge requirement about course content within an e-learning system are proposed and implemented in this paper. The first approach is based on the historical data accumulated by an…

  14. The software design of acquisition system for nuclear pulse based on ARM

    This paper introduces, a new style data acquisition system, which can acquire and analyze nuclear pulse signal based on ARM and high speed ADC. The system adopts Visual C++ as software developing kit. Concerning the multiple threads technology and object oriented method on serial communication. (authors)

  15. PXI based data acquisition system for SST-1 TF test program

    SST-1 TF coil test program required data acquisition system (DAQ) for continuous monitoring of different sensors mounted on the coil for measurement of different parameters like voltage, pressure, temperature, strain, flow etc. Main design derivers for the system were ease of channel expansion capability, variable high/slow sampling rate, high accuracy, flexible GUI based configuration with reliable data storage and time synchronization with other acquisition systems. A PXI based data acquisition has been developed on Labview platform having these features. In present system, two NI-6225 Multifunction DAQ cards have been used,one dedicated for acquiring temperature data and other for acquiring voltages. GPS based time synchronization system has been used in this system. Application program provides flexibility of viewing online numeric data of selected channels in user defined groups and also the possibility to view online plots of four different groups in single window. This facilitated easy operator based actions during the test campaigns. Individual input channels have possibility to define sampling rate, gain, offset, multiplication factor and identification name. This data acquisition system has been successfully used for more than twenty coil test in the coil test campaigns and other small laboratory scale experiments. Present paper gives details of this system, application program and its performance during the tests. (author)

  16. Comparison between wire and wireless EEG acquisition systems based on SSVEP in an Independent-BCI.

    Tello, Richard M G; Müller, Sandra M T; Bastos-Filho, Teodiano; Ferreira, Andre

    2014-01-01

    This paper presents a comparison between two different technologies of acquisition systems (BrainNet36 and Emotiv Epoc) for an Independent-BCI based on Steady-State Visual Evoked Potential (SSVEP). Two stimuli separated by a viewing angle experiments. The class is obtained through a criterion of maxima. The left and right flicker stimuli were modulated at frequencies of 8.0 and 13.0 Hz, respectively. Acquisition via BrainNet system showed better results, obtaining the highest value for accuracy (100%) and the highest ITR (35.18 bits/min). This Independent-BCI is based on covert attention. PMID:25569887

  17. A study of the environmental information acquisition system based on smart phones

    Xu, Lingyan; Chen, Feixiang; Ni, Shaoliang; Wang, Ling; Wei, Chao; Gong, Bowen

    2010-08-01

    In this paper, it proposed a new environmental information acquisition system based on smart phones (Smartphone / Pocket PC) which combined with Geographic Information System (GIS), Global Positioning System (GPS), wireless communication technology in allusion to the current actual situation of environmental protection information acquisition in city environmental protection department. System architecture and working principle is analyzed, and it designs the main modules of the software and hardware. In addition, transport protocols and application of the implementation method have been discussed. Experiments show that the environmental information acquisition system has high precision, easy to use, information transfer with high efficiency and reliability. Not only have that, the paper also discusses the effective strategies of network transmission of data encryption and the image transmission rate improvement. In brief, it can effectively enhance the work efficiency of the city environmental protection department when they collect relevant information.

  18. FPGA Based High Accuracy Synchronous Acquisition Design for Binocular Vision System

    Lili Lin

    2011-06-01

    Full Text Available This paper proposes a coarse-to-fine two-level synchronous data acquisition and transmission system for binocular stereo vision, which satisfies strict synchronous requirement of stereo vision. Specifically, this synchronization system design contains: coarse level synchronous based on hardware circuit design and the fine level synchronous based on hardware description language (HDL design. The former includes the synchronization design of clock and external trigger. The latter utilizes a multi-level synchronous control strategy from field-level to pixel-level, which consists of field-synchronous acquisition of the two-channel video inputs, two-channel Ping-pong buffers switch control module, and pixel-synchronous bit-splicing and PCI transmission module. The experiments of synchronous acquisition and display demonstrate the high reliability and great performance of this synchronous system.

  19. Data acquisition system DAPHNE

    DAPHNE is a data acquisition system which is being created to satisfy the needs of the accelerator based experimental research program of the division in particular the one at ATLAS. It is CAMAC based with a hardware front end consisting of multiple single board processors in a Multibus cage to provide a parallel processing capability. The host computer, a VAX 750, will provide for data logging, histogram memory space, and user interaction. The first DAPHNE system is being designed and constructed for use by ATLAS and is expected to be ready by late spring, 1985

  20. A PC-based single-ADC multi-parameter data acquisition system

    A personal computer (PC) based mult parameter data acquisition system using the Microsoft Window operating environment has been designed and constructed. An IBI AT compatible personal computer with an Intel 486DX5 microprocessor was combined with a National Instruments ATIDIO 32 digital I/O card, a single Canberra 8713 ADC with 13-bit resolution and a modified Canberra 8223 8-input analog multiplexer to acquil data from experiments carried out at the UML Van de Graa accelerator. The accelerator data acquisition (ADAC) computer environment was programmed in Microsoft Visual BASIC for use i Windows. ADAC allows event-mode data acquisition with up to eight parameters (modifiable to 64) and the simultaneous display parameters during acquisition. Additional features of ADAC include replay of event-mode data and graphical analysis/display of data. TV ADAC environment is easy to upgrade or expand, inexpensive 1 implement, and is specifically designed to meet the needs of nuclei spectroscopy

  1. MDSplus data acquisition system

    MDSplus, a tree based, distributed data acquisition system, was developed in collaboration with the ZTH Group at Los Alamos National Lab and the RFX Group at CNR in Padua, Italy. It is currently in use at MIT, RFX in Padua, TCV at EPFL in Lausanne, and KBSI in South Korea. MDSplus is made up of a set of X/motif based tools for data acquisition and display, as well as diagnostic configuration and management. It is based on a hierarchical experiment description which completely describes the data acquisition and analysis tasks and contains the results from these operations. These tools were designed to operate in a distributed, client/server environment with multiple concurrent readers and writers to the data store. While usually used over a Local Area Network, these tools can be used over the Internet to provide access for remote diagnosticians and even machine operators. An interface to a relational database is provided for storage and management of processed data. IDL is used as the primary data analysis and visualization tool. IDL is a registered trademark of Research Systems Inc. copyright 1996 American Institute of Physics

  2. Platform attitude data acquisition system

    Afzulpurkar, S.

    A system for automatic acquisition of underwater platform attitude data has been designed, developed and tested in the laboratory. This is a micro controller based system interfacing dual axis inclinometer, high-resolution digital compass...

  3. Data acquisition and command system for use with a microprocessor-based control chassis

    The Pion Generation for Medical Irradiations (PIGMI) program at the Los Alamos Scientific Laboratory is developing the technology to build smaller, less expensive, and more reliable proton linear accelerators for medical applications, and has designed a powerful, simple, inexpensive, and reliable control and data acquisition system that is central to the program development. The system is a NOVA-3D minicomputer interfaced to several outlying microprocessor-based controllers, which accomplish control and data acquisition through data I/O chasis. The equipment interface chassis, which can issue binary commands, read binary data, issue analog commands, and read timed and untimed analog data is described

  4. An adaptive structure data acquisition system using a graphical-based programming language

    Baroth, Edmund C.; Clark, Douglas J.; Losey, Robert W.

    1992-01-01

    An example of the implementation of data fusion using a PC and a graphical programming language is discussed. A schematic of the data acquisition system and user interface panel for an adaptive structure test are presented. The computer programs (a series of icons 'wired' together) are also discussed. The way in which using graphical-based programming software to control a data acquisition system can simplify analysis of data, promote multidisciplinary interaction, and provide users a more visual key to understanding their data are shown.

  5. Knowledge acquisition and discovery for the textual case-based cooking system WIKITAAABLE

    Badra, Fadi; Cojan, Julien; Cordier, Amélie; Lieber, Jean; Meilender, Thomas; Mille, Alain; Molli, Pascal; Nauer, Emmanuel; Napoli, Amedeo; Skaf-Molli, Hala; Toussaint, Yannick

    2009-01-01

    International audience The textual case-based cooking systemWIKITAAABLE participates to the second Computer cooking contest (CCC). It is an extension of the TAAABLE system that has participated to the first CCC. WIKITAAABLE's architecture is composed of a semantic wiki used for the collaborative acquisition of knowledge (recipe, ontology, adaptation knowledge) and of a case-based inference engine using this knowledge for retrieving and adapting recipes. This architecture allows various mod...

  6. A FADC-based Data Acquisition System for the KASCADE-Grande Experiment

    Walkowiak, W; Apel, W D; Badea, F; Bekk, K; Bercuci, A; Bertaina, M; Blümer, H; Bozdog, H; Brancus, I M; Bruggemann, M; Buchholz, P; Büttner, C; Chiavassa, A; Daumiller, K; di Pierro, F; Doll, P; Engel, R; Engler, J; Feler, F; Ghia, P L; Gils, H J; Glasstetter, R; Haungs, A; Heck, D; Hörandel, J R; Kampert, K H; Klages, H O; Kolotaev, Yu; Maier, G; Mathes, H J; Mayer, H J; Milke, J; Mitrica, B; Morello, C; Müller, M; Navarra, G; Obenland, R; Oehlschläger, J; Ostapchenko, S; Over, S; Petcu, M; Plewnia, S; Rebel, H; Risse, A; Roth, M; Schieler, H; Scholz, J; Stumpert, M; Thouw, T; Toma, G; Trinchero, G C; Ulrich, H; Valchierotti, S; Van Buren, J; Weindl, A; Wochele, J; Zabierowski, J; Zagromski, S; Zimmermann, D

    2006-01-01

    We present the design and first test results of a new FADC-based data acquisition (DAQ) system for the Grande array of the KASCADE-Grande experiment. The original KASCADE experiment at the Forschungszentrum Karlsruhe, Germany, has been extended by 37 detector stations of the former EAS-TOP experiment (Grande array)to provide sensitivity to energies of primary particles from the cosmos of up to $10^{18}$ eV. The new FADC-based DAQ system will improve the quality of the data taken by the Grande array by digitizing the scintillator signals with a 250 MHz sampling rate. events per second. Two Grande stations have been equipped with the FADC-based data acquisition system and first data are shown.

  7. Dual microprocessor based control and data acquisition system for triple axis neutron spectrometer

    A microprocessor-based control and data acquisition system is designed and built for neutron spectrometers. This system makes use of two microprocessors SC/MP and MM 57109 and serves as a general purpose control system for a variety of on-line control applications and data acquisition. The system under description is dedicated to control a triple axis neutron spectrometer and makes use of resident programmes to run the spectrometer in constant Q or E modes to aid in coherent neutron inelastic scattering experiments. System hardware and software are briefly discussed. The basic system is capable of being adopted for other instruments like a powder diffractometer with capability for profile analysis, single crystal diffractometers etc. after some suitable modification in software. Data can be processed to some extent, if need be. (author)

  8. Research of Data Acquisition and Analysis System for Internal Combustion Engine Based on DSP

    In the paper, the structure, working principle, functions and characteristics of an data acquisition and analysis system for internal combustion engines (I.C. engine) based on DSP is introduced. The DSP can not only acquire and analyze the data alone, also can work with the PC together to form data acquisition and analysis system with high speed and large memory. The system takes advantages of TMS320F2812's plenty of peripherals on chip, becomes small and easy for installation. USB technique is used to translate data between DSP and PC in high speed, so the system's real time processing is proved very much. It is proved that the designed system can acquire and analyze the steady and transient parameters of the I.C. engine very well

  9. Optimized list-mode acquisition and data processing procedures for ACS2 based PET systems

    PET systems using the acquisition control system version 2 (ACS2), e.g. the ECAT Exact HR PET scanner series, offer a rather restricted list-mode functionality. For instance, typical transfers of acquisition data consume a considerable amount of time. This represents a severe obstacle to the utilization of potential advantages of list-mode acquisition. In our study, we have developed hardware and software solutions which do not only allow for the integration of list-mode into routine procedures, but also improve the overall runtime stability of the system. We show that our methods are able to speed up the transfer of the acquired data to the image reconstruction and processing workstations by a factor of up to 140. We discuss how this improvement allows for the integration of list-mode-based post-processing methods such as an event-driven movement correction into the data processing environment, and how list-mode is able to improve the overall flexibility of PET investigations in general. Furthermore, we show that our methods are also attractive for conventional histogram-mode acquisition, due to the improved stability of the ACS2 system. (orig.)

  10. Fast integrator based data acquisition system for the SST-1 Thomson scattering system

    An operational transconductance amplifier based fast charge-integrating module (FCIM) is designed and developed for an easy acquisition of fast Thomson scattered and background signal. FCIM based data acquisition technique can be used for the measurement of charge pulses of <20 ns duration. The response of the module is tested using a standard pulsed charge-generating module. The measuring charge range of the module depends on the integrating capacitor. Comparison of the performance of FCIM to commercially available module shows that it has better dynamic range with higher sensitivity and less measurement error. The module is quite cost effective and has many new features.

  11. Data acquisition system

    The topic of this paper deals with a multi parametric acquisition system developed around a four input Analog to Digital Converter working in CAMAC Standard. The acquisition software is built in MS Visual C++ on a standard PC with a USB interface. It has a visual interface which permits Start/Stop of the acquisition, setting the type of acquisition (True/Live time), the time and various menus for primary data acquisition. The spectrum is dynamically visualized with a moving cursor indicating the content and position. The microcontroller PIC16C765 is used for data transfer from ADC to PC; The microcontroller and the software create an embedded system which emulates the CAMAC protocol programming, the 4 input ADC for operating modes ('zero suppression', 'addressed' and 'sequential') and handling the data transfers from ADC to its internal memory. From its memory the data is transferred into the PC by the USB interface. The work is in progress. (authors)

  12. Development of small and inexpensive digital data acquisition systems using a microcontroller-based approach.

    Naivar, Mark A; Wilder, Mark E; Habbersett, Robert C; Woods, Travis A; Sebba, David S; Nolan, John P; Graves, Steven W

    2009-12-01

    Fully digital data acquisition systems for use in flow cytometry provide excellent flexibility and precision. Here, we demonstrate the development of a low cost, small, and low power digital flow cytometry data acquisition system using a single microcontroller chip with an integrated analog to digital converter (ADC). Our demonstration system uses a commercially available evaluation board making the system simple to integrate into a flow cytometer. We have evaluated this system using calibration microspheres analyzed on commercial, slow-flow, and CCD-based flow cytometers. In our evaluations, our demonstration data system clearly resolves all eight peaks of a Rainbow microsphere set on both a slow-flow flow cytometer and a retrofitted BD FACScalibur, which indicates it has the sensitivity and resolution required for most flow cytometry applications. It is also capable of millisecond time resolution, full waveform collection, and selective triggering of data collection from a CCD camera. The capability of our demonstration system suggests that the use of microcontrollers for flow cytometry digital data-acquisition will be increasingly valuable for extending the life of older cytometers and provides a compelling data-system design approach for low-cost, portable flow cytometers. PMID:19852060

  13. A microcontroller-based data-acquisition system for meteorological station monitoring

    This paper presents a study of feasibility of different existing methodologies linked to field's data acquisition from remote meteorological stations. The data transmission serves to collect field's meteorological information, such as temperature, humidity and radiation. In our study the experimental data is registered in a weather station located about 100 km from University of Almeria. Various existing techniques are studied, especially Radio, GSM (global system of mobile communication) and GPRS (general packet radio service). In the result of these studies has been designed a system of field's data acquisition (herein referred as Meteologger) which we are going to present in this paper. The system is based on an ATmega 16 microcontroller, which scans 8 sensors together at any programmable intervals. This paper presents the study of the mentioned project, application and some main characteristics of the prototype system and its program. We attempt to implement the system, and subsequently present the performance of tests regarding the mentioned system. To verify its functioning some comparison of this measurement system with two others commercial data-acquisition system (Campbell and Hobo H8) has been carried out

  14. A versatile computer based system for data acquisition manipulation and presentation

    A data acquisition system based on the Microdata M 1600L data logger and a Digital Equipment Corporation (DEC) VT103 computer system has been set up for use in a wide range of research and development projects in the field of fission detectors and associated technology. The philosophy underlying the system and its important features are described. Operating instructions for the logger are given, and its application to experimental measurements is considered. Observations on whole system performance, and recommendations for improvements are made. (U.K.)

  15. Results from a data acquisition system prototype project using a switch-based event builder

    A prototype of a high bandwidth parallel event builder has been designed and tested. The architecture is based on a simple switching network and is adaptable to a wide variety of data acquisition systems. An eight channel system with a peak throughput of 160 Megabytes per second has been implemented. It is modularly expandable to 64 channels (over one Gigabyte per second). The prototype uses a number of relatively recent commercial technologies, including very high speed fiber-optic data links, high integration crossbar switches and embedded RISC processors. It is based on an open architecture which permits the installation of new technologies with little redesign effort. 5 refs., 6 figs

  16. The design of laser radar data acquisition system based on LabVIEW

    Han, Dalong; Han, Shaokun; Cao, Jingya; Xia, Wenze; Wang, Liang

    2015-08-01

    Lidar has been widely used in areas of ranging and imaging. To be able to perform real-time control of the entire system, this article designed a lidar data acquisition system based on LabVIEW and the PC system allows real-time display for data acquired by lidar system. Through the serial port, the PC system can adjust part of the laser radar system parameters, such as frequency, APD (Avalanche Photo Diode) bias, the echo threshold, etc in real-time. In this way, we achieve the instruction communication between the PC system and the lidar. In addition, the PC system can also acquire data from the lidar through the Ethernet. Through the practical test, the PC system can successfully acquire and display the echo signal measured by lidar system in real-time, and function of parameter adjustment is also very sensitive.

  17. Improvement of web-based data acquisition and management system for GOSAT validation lidar data analysis

    Okumura, Hiroshi; Takubo, Shoichiro; Kawasaki, Takeru; Abdullah, Indra Nugraha; Uchino, Osamu; Morino, Isamu; Yokota, Tatsuya; Nagai, Tomohiro; Sakai, Tetsu; Maki, Takashi; Arai, Kohei

    2013-01-01

    A web-base data acquisition and management system for GOSAT (Greenhouse gases Observation SATellite) validation lidar data-analysis has been developed. The system consists of data acquisition sub-system (DAS) and data management sub-system (DMS). DAS written in Perl language acquires AMeDAS (Automated Meteorological Data Acquisition System) ground-level local meteorological data, GPS Radiosonde upper-air meteorological data, ground-level oxidant data, skyradiometer data, skyview camera images, meteorological satellite IR image data and GOSAT validation lidar data. DMS written in PHP language demonstrates satellite-pass date and all acquired data. In this article, we briefly describe some improvement for higher performance and higher data usability. GPS Radiosonde upper-air meteorological data and U.S. standard atmospheric model in DAS automatically calculate molecule number density profiles. Predicted ozone density prole images above Saga city are also calculated by using Meteorological Research Institute (MRI) chemistry-climate model version 2 for comparison to actual ozone DIAL data.

  18. A camac based data acquisition system for flat-panel image array readout

    A readout system has been developed to facilitate the digitization and subsequent display of image data from two-dimensional, pixellated, flat-panel, amorphous silicon imaging arrays. These arrays have been designed specifically for medical x-ray imaging applications. The readout system is based on hardware and software developed for various experiments at CERN and Fermi National Accelerator Laboratory. Additional analog signal processing and digital control electronics were constructed specifically for this application. The authors report on the form of the resulting data acquisition system, discuss aspects of its performance, and consider the compromises which were involved in its design

  19. The visual and remote analyzing software for a Linux-based radiation information acquisition system

    A visual and remote analyzing software for the radiation information, which has the merit of universality and credibility, is developed based on the Linux operating system and the TCP/IP network protocol. The software is applied to visually debug and real time monitor of the high-speed radiation information acquisition system, and a safe, direct and timely control can assured. The paper expatiates the designing thought of the software, which provides the reference for other software with the same purpose for the similar systems

  20. Design and implementation of high-speed real-time data acquisition system based on FPGA

    WANG Xu-ying; LU Ying-hua; ZHANG Li-kun

    2006-01-01

    The electromagnetic radiation will result in information leakage being recovered when computers work. This article presents a high-speed real-time data acquisition system based on peripheral component interconnect (PCI) bus and field programmable gate array (FPGA) for sampling electromagnetic radiation caused by video signal. The hardware design and controlling flow of each module are introduced in detail. The sampling rate can reach 64 Msps and system transfers speed can be up to 128 Mb/s by using time interleaving, which increases the overall sampling speed of a system by operating two data converters in parallel.

  1. Fast PC-based data acquisition system for gas-filled position sensitive detectors

    The high flux of the new generation of synchrotron radiation sources requires fast position sensitive detectors with high count rate data acquisition systems capability. Though the local count rate in a gas-filled position-sensitive detector is limited by the space charge effect, the integral rate will increase with the area of the detector. Thus, more than several 106 events per second can be achieved. Therefore, we developed a new PC-based histogramming and control interface (HCl) with an intrinsic dead time lower than 200 ns for linear and area X-ray detectors for time-resolved measurement applications. An overview of the complete acquisition system including a fast time-to-digital converter and image processing software will be given. The design principles and operating characteristics including experimental results obtained with a 100 mm linear delay-line detector at the SAXS beamline 5.2 in Elettra (Trieste) will be presented. (orig.)

  2. Method for signal conditioning and data acquisition system, based on variable amplification and feedback technique

    An original method of signal conditioning and adaptive amplification is proposed for data acquisition systems of analog signals, conceived to obtain a high resolution spectrum of any input signal. The procedure is based on a feedback scheme of the signal amplification with aim at maximizing the dynamic range and resolution of the data acquisition system. The paper describes the signal conditioning, digitization, and data processing procedures applied to an a priori unknown signal in order to enucleate its amplitude and frequency content for applications in different environments: on the ground, in space, or in the laboratory. An electronic board of the conditioning module has also been constructed and described. In the paper are also discussed the main fields of application and advantages of the method with respect to those known today

  3. Method for signal conditioning and data acquisition system, based on variable amplification and feedback technique

    Conti, Livio, E-mail: livio.conti@uninettunouniversity.net [Facoltà di Ingegneria, Università Telematica Internazionale Uninettuno, Corso Vittorio Emanuele II 39, 00186 Rome, Italy INFN Sezione Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome (Italy); Sgrigna, Vittorio [Dipartimento di Matematica e Fisica, Università Roma Tre, 84 Via della Vasca Navale, I-00146 Rome (Italy); Zilpimiani, David [National Institute of Geophysics, Georgian Academy of Sciences, 1 M. Alexidze St., 009 Tbilisi, Georgia (United States); Assante, Dario [Facoltà di Ingegneria, Università Telematica Internazionale Uninettuno, Corso Vittorio Emanuele II 39, 00186 Rome, Italy INFN Sezione Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome (Italy)

    2014-08-21

    An original method of signal conditioning and adaptive amplification is proposed for data acquisition systems of analog signals, conceived to obtain a high resolution spectrum of any input signal. The procedure is based on a feedback scheme of the signal amplification with aim at maximizing the dynamic range and resolution of the data acquisition system. The paper describes the signal conditioning, digitization, and data processing procedures applied to an a priori unknown signal in order to enucleate its amplitude and frequency content for applications in different environments: on the ground, in space, or in the laboratory. An electronic board of the conditioning module has also been constructed and described. In the paper are also discussed the main fields of application and advantages of the method with respect to those known today.

  4. Seismic data acquisition systems

    Details of seismic data acquisition systems developed at the Bhabha Atomic Research Centre, Bombay are reported. The seismic signals acquired belong to different signal bandwidths in the band from 0.02 Hz to 250 Hz. All these acquisition systems are built around a unique technique of recording multichannel data on to a single track of an audio tape and in digital form. Techniques of how these signals in different bands of frequencies were acquired and recorded are described. Method of detecting seismic signals and its performance is also discussed. Seismic signals acquired in different set-ups are illustrated. Time indexing systems for different set-ups and multichannel waveform display systems which form essential part of the data acquisition systems are also discussed. (author). 13 refs., 6 figs., 1 tab

  5. Installation of a digitizer based pulse processing and data acquisition system and related developments

    The use of digitizer based pulse processing and data acquisition system at the recent campaign of the Indian National Gamma Array (INGA) at Tata Institute of Fundamental Research (TIFR), Mumbai, has emanated the use of digital signal processing in spectroscopic endeavours being pursued in the country. The long and successful operation of the system at TIFR, and several experiments carried out therein, have contributed in edifying the user community on the nuances of the new technology and the possible refinements/ requirements in the context of the γ-ray spectroscopic endeavours

  6. Multiprocessor data acquisition system

    A multiprocessor data acquisition system has been built to replace the single processor systems at the Intense Pulsed Neutron Source (IPNS) at Argonne National Laboratory. The multiprocessor system was needed to accommodate the higher data rates at IPNS brought about by improvements in the source and changes in instrument configurations. This paper describes the hardware configuration of the system and the method of task sharing and compares results to the single processor system

  7. MPS Data Acquisition System

    A description is given of the data acquisition system used with the multiparticle spectrometer facility at Brookhaven. Detailed information is provided on that part of the system which connects the detectors to the data handler; namely, the detector electronics, device controller, and device port optical isolator

  8. New KENS data acquisition system

    In this report, the authors discuss a data acquisition system, KENSnet, which is newly introduced to the KENS facility. The criteria for the data acquisition system was about 1 MIPS for CPU speed and 150 Mbytes for storage capacity for a computer per spectrometer. VAX computers were chosen with their propreitary operating system, VMS. The Vax computers are connected by a DECnet network mediated by Ethernet. Front-end computers, Apple Macintosh Plus and Macintosh II, were chosen for their user-friendly manipulation and intelligence. New CAMAC-based data acquisition electronics were developed. The data acquisition control program (ICP) and the general data analysis program (Genie) were both developed at ISIS and have been installed. 2 refs., 3 figs., 1 tab

  9. The MicroVAX-based data acquisition system for D0

    A large array of Micro VAX computers will be used for high-speed data acquisition and online filtering in the D0 experiment at Fermi National Laboratory. Described is this system, as well as several smaller data acquisition systems now operational, with particular emphasis on the control and communication software. The computers in this array will run under VAXELN

  10. Python based integration of GEM detector electronics with JET data acquisition system

    Zabołotny, Wojciech M.; Byszuk, Adrian; Chernyshova, Maryna; Cieszewski, Radosław; Czarski, Tomasz; Dalley, Simon; Hogben, Colin; Jakubowska, Katarzyna L.; Kasprowicz, Grzegorz; Poźniak, Krzysztof; Rzadkiewicz, Jacek; Scholz, Marek; Shumack, Amy

    2014-11-01

    This paper presents the system integrating the dedicated measurement and control electronic systems for Gas Electron Multiplier (GEM) detectors with the Control and Data Acquisition system (CODAS) in the JET facility in Culham, England. The presented system performs the high level procedures necessary to calibrate the GEM detector and to protect it against possible malfunctions or dangerous changes in operating conditions. The system also allows control of the GEM detectors from CODAS, setting of their parameters, checking their state, starting the plasma measurement and to reading the results. The system has been implemented using the Python language, using the advanced libraries for implementation of network communication protocols, for object based hardware management and for data processing.

  11. Performance Confirmation Data Acquisition System

    The purpose of this analysis is to identify and analyze concepts for the acquisition of data in support of the Performance Confirmation (PC) program at the potential subsurface nuclear waste repository at Yucca Mountain. The scope and primary objectives of this analysis are to: (1) Review the criteria for design as presented in the Performance Confirmation Data Acquisition/Monitoring System Description Document, by way of the Input Transmittal, Performance Confirmation Input Criteria (CRWMS M and O 1999c). (2) Identify and describe existing and potential new trends in data acquisition system software and hardware that would support the PC plan. The data acquisition software and hardware will support the field instruments and equipment that will be installed for the observation and perimeter drift borehole monitoring, and in-situ monitoring within the emplacement drifts. The exhaust air monitoring requirements will be supported by a data communication network interface with the ventilation monitoring system database. (3) Identify the concepts and features that a data acquisition system should have in order to support the PC process and its activities. (4) Based on PC monitoring needs and available technologies, further develop concepts of a potential data acquisition system network in support of the PC program and the Site Recommendation and License Application

  12. Data acquisition system enhancements

    The principal data acquisition system consists of a DEC PDP 11/60 computer with two 5 megabyte RL-01 disks, a 1600 bpi 75 ips 9 track tape drive, a Printronix P-300 printer/plotter with a Trilog Tektronix hardcopy board, a DEC VT-11 graphics display, a Tektronix 4006 terminal and a BiRa MBD-11 controlling a CAMAC crate to connect with twelve Tracor Northern TN-1213 ADCs. 15 NPL-built 75 MHz scalers are read via an IEEE-488 bus interface. New data acquisition hardware and software are described and some programming considerations are discussed

  13. Advanced IPNE data acquisition system

    A complex and flexible data acquisition system has been developed in order to run relative complex experiments in our acceleration system - ALIGATOR. AIDA programme has been carried out on a small PDP - 11/34 computer and is based on a CAMAC hardware. The main hardware and software features are presented. (authors)

  14. The Linux based distributed data acquisition system for the ISTRA+ experiment

    The DAQ hardware of the ISTRA+ experiment consists of the VME system crate that contains two PCI-VME bridges interfacing two PCs with VME, external interrupts receiver, the readout controller for dedicated front-end electronics, the readout controller buffer memory module, the VME-CAMAC interface, and additional control modules. The DAQ computing consist of 6 PCs running the Linux operating system and linked into LAN. The first PC serves the external interrupts and acquires the data from front-end electronic. The second one is the slow control computer. The remaining PCs host the monitoring and data analysis software. The Linux based DAQ software provides the external interrupts processing, the data acquisition, recording, and distribution between monitoring and data analysis tasks running at DAQ PCs. The monitoring programs are based on two packages for data visualization: home-written one and the ROOT system. MySQL is used as a DAQ database

  15. A Spartan 6 FPGA-based data acquisition system for dedicated imagers in nuclear medicine

    We present the development of a four-channel low-cost hardware system for data acquisition, with application in dedicated nuclear medicine imagers. A 12 bit octal channel high-speed analogue to digital converter, with up to 65 Msps sampling rate, was used for the digitization of analogue signals. The digitized data are fed into a field programmable gate array (FPGA), which contains an interface to a bank of double data rate 2 (DDR2)-type memory. The FPGA processes the digitized data and stores the results into the DDR2. An ethernet link was used for data transmission to a personal computer. The embedded system was designed using Xilinx's embedded development kit (EDK) and was based on Xilinx's Microblaze soft-core processor. The system has been evaluated using two different discrete optical detector arrays (a position-sensitive photomultiplier tube and a silicon photomultiplier) with two different pixelated scintillator arrays (BGO, LSO:Ce). The energy resolution for both detectors was approximately 25%. A clear identification of all crystal elements was achieved in all cases. The data rate of the system with this implementation can reach 60 Mbits s−1. The results have shown that this FPGA data acquisition system is a compact and flexible solution for single-photon-detection applications. (paper)

  16. Development of a PC-based data acquisition and control system

    An inexpensive data acquisition and control system was developed, which can easily be used with different computers for many agricultural and biological applications. The high-speed data acquisition and control device uses only an RS-232 serial port to interface with a PC. The device has two analo...

  17. The FINUDA data acquisition system

    A parallel scalable Data Acquisition System, based on VME, has been developed to be used in the FINUDA experiment, scheduled to run at the DAPHNE machine at Frascati starting from 1997. The acquisition software runs on embedded RTPC 8067 processors using the LynxOS operating system. The readout of event fragments is coordinated by a suitable trigger Supervisor. data read by different controllers are transported via dedicated bus to a Global Event Builder running on a UNIX machine. Commands from and to VME processors are sent via socket based network protocols. The network hardware is presently ethernet, but it can easily changed to optical fiber

  18. Design of data acquisition system ZOH production process equipment of ZBS (zircon based sulfate)

    Design of data acquisition system of ZOH maker unit from ZBS has performed. Design is done as a follow-up of The Design Flow stirred tank reactor (RATB) ZOH Making of ZBS is equipped with a data acquisition system. The design of the system is going to work based on constants or parameters that have been previously calculated. Design method begins with understanding the process description of ZBS ZOH continuous basis, identify the parameters to be observed. Description of the process need to know to determine the actuator is used, as for these parameters are used to determine the sensor to be used. The parameter are the detection of NH4OH and ZBS reserves the feeder tank, flow rate ZBS and NH4OH, the temperature inside RATB, RATB and pH , the produced flow rate of ZOH. Based on the calculation, in order to get the results needed ZOH ZBS will flow into the reactor at the rate of 10 ml/min simultaneously with NH4OH with discharge flow 6.1 ml/min into the RATB 3 liters volume. When the volume reaches half tank RATB then start heating is turned on while the constant feed flow. Conditions of pH and temperature on the RATB always monitored by setting point pH at 10 while setting point temperature of 90°C. Monitoring parameters require gauge/transducer or a particular sensor. The study on the obtained results in the form of a flow chart design controller when controlling the process, when read and transmit data, and display the resulting data acquisition process parameters on the screen according to the parameters that was planned. (author)

  19. Remote Fault Information Acquisition and Diagnosis System of the Combine Harvester Based on LabVIEW

    Chen, Jin; Wu, Pei; Xu, Kai

    Most combine harvesters have not be equipped with online fault diagnosis system. A fault information acquisition and diagnosis system of the Combine Harvester based on LabVIEW is designed, researched and developed. Using ARM development board, by collecting many sensors' signals, this system can achieve real-time measurement, collection, displaying and analysis of different parts of combine harvesters. It can also realize detection online of forward velocity, roller speed, engine temperature, etc. Meanwhile the system can judge the fault location. A new database function is added so that we can search the remedial measures to solve the faults and also we can add new faults to the database. So it is easy to take precautions against before the combine harvester breaking down then take measures to service the harvester.

  20. Computer-based supervisory control and data acquisition system for the radioactive waste evaporator

    The evaporator process at TA-55 reduces the amount of transuranic liquid radioactive waste by separating radioactive salts from relatively low-level radioactive nitric acid solution. A computer-based supervisory control and data acquisition (SCADA) system has been installed on the process that allows the operators to easily interface with process equipment. Individual single-loop controllers in the SCADA system allow more precise process operation with less human intervention. With this system, process data can be archieved in computer files for later analysis. Data are distributed throughout the TA-55 site through a local area network so that real-time process conditions can be monitored at multiple locations. The entire system has been built using commercially available hardware and software components

  1. A data acquisition and analysis system based on LabVIEW and ROOT

    An interfacing technology between LabVIEW and ROOT is realized by loading and running the executable file. This technology can make the best of their own advantages of design a powerful and efficient data acquisition and analysis system. This paper ends up with two successful application examples of this interfacing technology: the data acquisition system for the gas ratio monitor and the optical performance test system for the EMC crystal in BESIII. (authors)

  2. A microcomputer based multi parametric system for nuclear data acquisition and processing

    A four-parameter Multi parametric System for the acquisition and processing of nuclear data is described. It is characterized for its flexibility and relatively low cost, also guaranteeing a high acquisition capacity. The system allows to be utilized in a multi parametric manner, in pulse height analysis or in many combination of both for parameter. It is described the hardware and the software of the system

  3. Modular data acquisition system based on transputer technology for bi-dimensional time coincidence counting

    We describe the rationale and the test of a modular Data AcQuisition system (DAQ) for bi-dimensional (X-Y) digital imaging, based on a 16 channel Time-to-Digital Converter (TDC) NIM module connected to a specially designed TRAnsputer Module (TRAM). TDC time resolution is 12.5 ns (LSB) with a 40 MHz clock, time range is 3.3 s (28 bits), for a maximum rate of 500 kHz/channel guaranteed. The TDC+TRAM pair is the basic unit that can be scaled in modules of 8X+8Y channels to meet the user's requirement for a larger number of X-Y channels to be considered simultaneously. TDC directly accesses the large RAM memory (32 Mbytes) of the INMOS T805 (20 MHz) transputer on the TRAM board. Each transputer in the modular system is a node of a ring network, whose root transputer node is hosted in a i386-based personal computer. After real-time data acquisition, a parallel reconstruction algorithm resolves time coincidences. Laboratory tests give a reconstruction time of 6.2 s for 1.28 105 events on 16 X+16 Y channels (2 TDC+2 TRAM), obtained in 1 s with a fluence of 5x104 events/mm2 (typically used in radiological imaging) on an area of 1.6x1.6 mm2. ((orig.))

  4. Advanced Data Acquisition Systems

    Perotti, J.

    2003-01-01

    Current and future requirements of the aerospace sensors and transducers field make it necessary for the design and development of new data acquisition devices and instrumentation systems. New designs are sought to incorporate self-health, self-calibrating, self-repair capabilities, allowing greater measurement reliability and extended calibration cycles. With the addition of power management schemes, state-of-the-art data acquisition systems allow data to be processed and presented to the users with increased efficiency and accuracy. The design architecture presented in this paper displays an innovative approach to data acquisition systems. The design incorporates: electronic health self-check, device/system self-calibration, electronics and function self-repair, failure detection and prediction, and power management (reduced power consumption). These requirements are driven by the aerospace industry need to reduce operations and maintenance costs, to accelerate processing time and to provide reliable hardware with minimum costs. The project's design architecture incorporates some commercially available components identified during the market research investigation like: Field Programmable Gate Arrays (FPGA) Programmable Analog Integrated Circuits (PAC IC) and Field Programmable Analog Arrays (FPAA); Digital Signal Processing (DSP) electronic/system control and investigation of specific characteristics found in technologies like: Electronic Component Mean Time Between Failure (MTBF); and Radiation Hardened Component Availability. There are three main sections discussed in the design architecture presented in this document. They are the following: (a) Analog Signal Module Section, (b) Digital Signal/Control Module Section and (c) Power Management Module Section. These sections are discussed in detail in the following pages. This approach to data acquisition systems has resulted in the assignment of patent rights to Kennedy Space Center under U.S. patent # 6

  5. The Data Acquisition System For Multichannel Spectrometer On Base Of The NGDP Framework

    Isupov, A. Yu.; Kovtun, V. E.; Foshchan, A. G.

    2010-04-01

    In present work it is proposed to implement the data acquisition system (DAQ COMBAS) for the fragment—separator COMBAS under freely distributed UNIX—like operating system (OS) FreeBSD on base of the ngdp framework, which allows to build modular distributed DAQ. As a CAMAC subsystem the camac package (DLNP JINR) is used, which encapsulates code deals with each supported crate controller into corresponding driver. Authors create the driver kh(4) for the PCI adapter of the CC02 controller (Karazin Kharkov National University). The runtime configurable r2h(1) histogram server module is supposed. The histGUI(1) client module is intended for histograms viewing as well as for r2h(1) runtime control and configurating. The histGUI(1) client will not depend on DAQ and ngdp system libraries, so can be compiled under any OS equipped by the ROOT package.

  6. Design and development of a PC based data acquisition system for automating thermal impact reporting

    The objective of this paper is to describe the design and development of an automated personal computer (PC) based data acquisition system for reporting the thermal impact of a fossil fueled power plant on its circulating water source. The system's prime functions are to collect and archive data and perform thermal hydraulic calculations necessary for reporting the plant's thermal impact on Waters of the United States to the Illinois Environmental Protection Agency (IEPA). The main objectives of the monitoring project were to reduce the labor required in the reporting process and to improve the accuracy in determining the circulating water flow rates through each of the station's three generating units. Additional efforts concentrated on enhancing condenser and circulating water pump performance information and providing an interface with the existing plant performance monitoring system

  7. A VMEbus based data acquisition system for a multi-element detector array

    A data acquisition system based on VME standard modules has been designed for MULTICS, a multi-element detector array. The system is composed of a master crate housing CPUs, Memories, Interface and Pattern boards. Up to 15 VME slave crates can be connected using the VMV vertical bus for ADC and TDC boards. A Macintosh Quadra is used as a console to provide a user friendly environment to send commands to the CPUs. Tools in the system include collecting and storing data, displaying histograms, handling all hardware parameters (high and low thresholds, rise time protection etc.). Diagnostic functions and error messages are also available to detect hardware failures or incorrect settings for the modules

  8. Data Acquisition System Based in MDAS Unit for the FEBEX Project

    The engineered barrier concept for the storage of radioactive wastes is being tested at CIEMAT facilities. This document describes the data acquisition system of one of that experiments. (Author) 2 refs

  9. Data Acquisition System

    The Data Acquisition System (DAS) is comprised of a Hewlett-Packard (HP) model 9816, Series 200 Computer System with the appropriate software to acquire, control, and archive data from a Data Acquisition/Control Unit, models HP3497A and HP3498A. The primary storage medium is an HP9153 16-megabyte hard disc. The data is backed-up on three floppy discs. One floppy disc drive is contained in the HP9153 chassis; the other two comprise an HP9122 dual disc drive. An HP82906A line printer supplies hard copy backup. A block diagram of the hardware setup is shown. The HP3497A/3498A Data Acquisition/Control Units read each input channel and transmit the raw voltage reading to the HP9816 CPU via the HPIB bus. The HP9816 converts this voltage to the appropriate engineering units using the calibration curves for the sensor being read. The HP9816 archives both the raw and processed data along with the time and the readings were taken to hard and floppy discs. The processed values and reading time are printed on the line printer. This system is designed to accommodate several types of sensors; each type is discussed in the following sections

  10. Design and Development of PC Based Data Acquisition System for Radiation Measurement

    M. A. A. Mashud

    2013-06-01

    Full Text Available A PC based data acquisition was designed and developed using GM detector and a programmable microcontroller 16F876 of PIC family. This unit was calibrated with the standard Canberra Counter. It gave prompt response directly and has low power consumption. It was tested for gamma ray measurement to continuously monitor a radiological resulting from the natural and man-made sources that threat site security and human health. The system was simple to use, required no additional hardware and allows the selection of data. The collected data were easily being exported to a PC via parallel port. A "C" language program was developed to control the function of the entire system, using PCWH compiler.

  11. FPGA based High Speed Data Acquisition System for High Energy Physics Application

    Mandal, Swagata; Chakrabarti, Amlan; Chattopadhyay, Subhasis

    2015-01-01

    In high energy physics experiments (HEP), high speed and fault resilient data communication is needed between detectors/sensors and the host PC. Transient faults can occur in the communication hardware due to various external effects like presence of charged particles, noise in the environment or radiation effects in HEP experiments and that leads to single/multiple bit error. In order to keep the communication system functional in such a radiation environment where direct intervention of human is not possible, a high speed data acquisition (DAQ) architecture is necessary which supports error recovery. This design presents an efficient implementation of field programmable gate array (FPGA) based high speed DAQ system with optical communication link supported by multi-bit error correcting model. The design has been implemented on Xilinx Kintex-7 board and is tested for board to board communication as well as for PC communication using PCI (Peripheral Component Interconnect express). Data communication speed up...

  12. Vol. 30 - A Novel Data Acquisition System Based on Fast Optical Links and Universal Readout Boards

    Korcyl, Grzegorz

    2015-01-01

    Various scale measurement systems are composed of the sensors providing data through the data acquisition system to the archiving facility. The scale of such systems is determined by the number of sensors that require processing and can vary from few up to hundreds of thousands. The number and the type of sensors impose several requirements on the data acquisition system like readout frequency, measurement precision and online analysis algorithms. The most challenging application s are the large scale experiments in nuclear and particle physics . This thesis presents a concept , construction and tests of a modular and scalable, tree - structured architecture of a data acquisition system. The system is composed out of two logical elemen ts: endpoints which are the modules providing data and hubs that concentrate the data streams from the endpoints and provide connectivity with the rest of the system. Those two logica...

  13. Multiprocessor based data acquisition system for radiation monitoring in nuclear reactors

    Expensive minicomputers are required for building powerful Data Acquisition Systems (DAS) capable of scanning and processing large number of signals in a real-time environment. However by using the inexpensive microprocessors in multiprocessor configuration it is possible to build DASs that are as powerful as minicomputer based systems at much lesser cost. This paper describes such a multiprocessor based DAS designed for acquiring data from various radiation monitoring instruments of a nuclear reactor. The system is built by using MULTIBUS standard boards based on intel 8086, 16 bit microprocessor, with local and shared memory. The system monitors upto 128 analog input channels, 64 digital input channels and actuates upto 128 digital output contacts. The system continuously checks for the alarm condition of the input channels and displays the alarm status on an ALARM CRT. Facility has been provided for the transfer of data to a central computer. At any instant of time, the information regarding different channels being monitored is available from the local console as well as through five remote terminals located at various places in the reactor building. (author)

  14. MIDAS-W: a workstation-based incoherent scatter radar data acquisition system

    J. M. Holt

    Full Text Available The Millstone Hill Incoherent Scatter Data Acquisition System (MIDAS is based on an abstract model of an incoherent scatter radar. This model is implemented in a hierarchical software system, which serves to isolate hardware and low-level software implementation details from higher levels of the system. Inherent in this is the idea that implementation details can easily be changed in response to technological advances. MIDAS is an evolutionary system, and the MIDAS hardware has, in fact, evolved while the basic software model has remained unchanged. From the earliest days of MIDAS, it was realized that some functions implemented in specialized hardware might eventually be implemented by software in a general-purpose computer. MIDAS-W is the realization of this concept. The core component of MIDAS-W is a Sun Microsystems UltraSparc 10 workstation equipped with an Ultrarad 1280 PCI bus analog to digital (A/D converter board. In the current implementation, a 2.25 MHz intermediate frequency (IF is bandpass sampled at 1 µs intervals and these samples are multicast over a high-speed Ethernet which serves as a raw data bus. A second workstation receives the samples, converts them to filtered, decimated, complex baseband samples and computes the lag-profile matrix of the decimated samples. Overall performance is approximately ten times better than the previous MIDAS system, which utilizes a custom digital filtering module and array processor based correlator. A major advantage of MIDAS-W is its flexibility. A portable, single-workstation data acquisition system can be implemented by moving the software receiver and correlator programs to the workstation with the A/D converter. When the data samples are multicast, additional data processing systems, for example for raw data recording, can be implemented simply by adding another workstation with suitable software to the high-speed network. Testing of new data processing software is also greatly

  15. MIDAS-W: a workstation-based incoherent scatter radar data acquisition system

    Holt, J. M.; Erickson, P. J.; Gorczyca, A. M.; Grydeland, T.

    2000-09-01

    The Millstone Hill Incoherent Scatter Data Acquisition System (MIDAS) is based on an abstract model of an incoherent scatter radar. This model is implemented in a hierarchical software system, which serves to isolate hardware and low-level software implementation details from higher levels of the system. Inherent in this is the idea that implementation details can easily be changed in response to technological advances. MIDAS is an evolutionary system, and the MIDAS hardware has, in fact, evolved while the basic software model has remained unchanged. From the earliest days of MIDAS, it was realized that some functions implemented in specialized hardware might eventually be implemented by software in a general-purpose computer. MIDAS-W is the realization of this concept. The core component of MIDAS-W is a Sun Microsystems UltraSparc 10 workstation equipped with an Ultrarad 1280 PCI bus analog to digital (A/D) converter board. In the current implementation, a 2.25 MHz intermediate frequency (IF) is bandpass sampled at 1 µs intervals and these samples are multicast over a high-speed Ethernet which serves as a raw data bus. A second workstation receives the samples, converts them to filtered, decimated, complex baseband samples and computes the lag-profile matrix of the decimated samples. Overall performance is approximately ten times better than the previous MIDAS system, which utilizes a custom digital filtering module and array processor based correlator. A major advantage of MIDAS-W is its flexibility. A portable, single-workstation data acquisition system can be implemented by moving the software receiver and correlator programs to the workstation with the A/D converter. When the data samples are multicast, additional data processing systems, for example for raw data recording, can be implemented simply by adding another workstation with suitable software to the high-speed network. Testing of new data processing software is also greatly simplified, because a

  16. Portable data acquisition system

    Lawrence Livermore National Laboratory (LLNL) has developed a Portable Data Acquisition (DAQ) System that is basically a laboratory-scale of Program Logic Control (PLC). This DAQ system can obtain signals from numerous sensors (e.g., pH, level, pressure, flow meters), open and close valves, and turn on and off pumps. The data can then be saved on a spreadsheet or displayed as a graph/indicator in real-time on a computer screen. The whole DAQ system was designed to be portable so that it could sit on a bench top during laboratory-scale treatability studies, or moved out into the field during larger studies. This DAQ system is also fairly simple to use. All that is required is some working knowledge of LabVIEW 4.1, and how to properly wire the process equipment. The DAQ system has been used during treatability studies on cesium precipitation, controlled hydrolysis of water- reactive wastes, and other waste treatment studies that enable LLNL to comply with the Federal Facility Compliance Act (FFCAct). Improved data acquisition allows the study to be better monitored, and therefore better controlled, and can be used to determine the results of the treatment study more effectively. This also contributes to the design of larger treatment processes

  17. A PC-based data acquisition system for enhanced reactor operation

    A PC-based data acquisition system, developed at the PUSPATI TRIGA Reactor facility (RTP), has proven to be a versatile tool in improving both operational and research capabilities. The system consists of a 16-bit personal computer with plug-in input/output board that captures analog signals and converts them to digital form with 12-bit accuracy. Direct memory access within the board enables fast communication through the host PC buslines. Built-in micro-coded commands were combined with the BASIC-language software. At the signal end, isolation amplifiers were installed for protection against ground disturbances and loops. Applications of the system include computerized rod and power calibrations. Menu-driven software and computerized data logging has increased accuracy at minimal manpower costs. For reactor operation monitoring, up to 16 single-ended input channels were available with a maximum sampling capability of 13,700 samples per second. Analog signals such as reactor power, fuel temperature and control rod positions were tapped from the instrumentation channels and sequentially multiplexed and digitized, then displayed on a monitor which serves as additional operator support. Data continuously monitored can be easily stored and retrieved, enabling rapid access and efficient management. The data acquisition system has also been used for work on reactor noise analysis. Signals from the fission chamber of the linear power channel were sampled in various operating modes at different power levels to identify noise signatures and sources. Software development centered on frequency and time domain analysis, file management and plotting routines. The initial language used was FORTRAN 1.0 but this was rewritten in PASCAL 2.0 to enhance calculation speed and reduce storage space. Results show that the technique was capable of detecting core disturbances caused by control rod oscillation and uneven distribution of samples in the specimen rotary rack during operation

  18. Design of bridge crane girder strain acquisition system based on virtual instrument

    Wenxue LIU

    Full Text Available Girder is an important part of the bridge crane, which is also the main force element. In order to prevent accidents, it is necessary to collect the bridge crane girder stress data to analyse the fatigue life. This paper constructs a bridge crane girder strain acquisition system. The hardware system consists of sensors, connectors, data acquisition cards, wireless data transmission groups, POE power and host computer. The software system consists of NI MAX to interface with the computer's NI hardware and software resources,and LabVIEW programming to display and storage the girder strain data. Through this system, positions and working days strain data acquisition for the 50/10 t bridge crane girder gets the key positions strain data. The results show that the girder strain data acquisition system runs stably, channel signals of acquisition task transmit accurately, and the terminal data stores competely, meeting the detection requirements, which provides an important data support for the subsequent fatigue analysis and accurate remaining service life prediction of the crane girder.

  19. Design and implementation of photoelectric rotary table data acquisition and analysis system host computer software based on VC++ and MFC

    Yang, Dawei; Yang, Xiufang; Han, Junfeng; Yan, Xiaoxu

    2015-02-01

    Photoelectric rotary table is mainly used in the defense industry and military fields, especially in the shooting range, target tracking, target acquisition, aerospace aspects play an important one. For range photoelectric measuring equipment field test application requirements, combined with a portable photoelectric rotary table data acquisition hardware system, software programming platform is presented based on the VC++, using MFC prepared PC interface, the realization of photoelectric turntable data acquisition, analysis and processing and debugging control. The host computer software design of serial communication and protocol, real-time data acquisition and display, real-time data curve drawing, analog acquisition, debugging guide, error analysis program, and gives the specific design method. Finally, through the photoelectric rotary table data acquisition hardware system alignment, the experimental results show that host computer software can better accomplish with lower machine data transmission, data acquisition, control and analysis, and to achieve the desired effect, the entire software system running performance is stable, flexible, strong practicality and reliability, the advantages of good scalability.

  20. The Linux Based Distributed Data Acquisition System for the ISTRA+ Experiment

    A.Filin; A.Inyakin; 等

    2001-01-01

    The DAQ hardware of the ISTRA+experiment consists of the VME system crate that contains two PCI-VME bridges interfacing two PC's with VME,external interrupts receiver,the readout controller for dedicated front-end electronics,the read-out controller buffer memory module,the VME-CAMAC interface,and additional control modules,The DAQ computing consist of 6 PC's running the Linux operating system and linked into LAN.The first PC serves the external interrupts and acquires the data from front-end electronics,The second one is the slow control computer.The remaining PC's host the monitoring and data analysis software.The Linux based DAQ software provides the external interrupts procssing,the data acquisition,recording,and distribution between monitoring and data analysis tasks running at DAQ PC's.The monitoring programs are based on two packages for data visualization:home-written on and the ROOT system.My SQl is used as a DAQ database.

  1. Embedded data acquisition system for EAST

    The embedded data acquisition system for the Experimental Advanced Super- conducting Tokamak (EAST) was designed. This system is based on the FPGA and ARM technology, integrates signal conditioning, data acquisition and processing into the single board, and provides a high integration and portability level architecture. At the same time, the 'time sliced' technology is introduced into the software system for providing a continuous acquisition and quasi real-time data transferring capability. (authors)

  2. Consumer server: A UNIX based event distributor in new CDF data acquisition system

    Consumer Server is a program to handle event data and consumer trigger requests I/Os among Level 3 farm and consumer processes in CDF new data acquisition system. This program uses standard UNIX libraries and commercial network technologies to obtain higher portability. The authors describe the concept and configuration of the Consumer Server and report its performance

  3. Fast Access Data Acquisition System

    Dr. Vladimir Katsman

    1998-03-17

    Our goal in this program is to develop Fast Access Data Acquisition System (FADAS) by combining the flexibility of Multilink's GaAs and InP electronics and electro-optics with an extremely high data rate for the efficient handling and transfer of collider experimental data. This novel solution is based on Multilink's and Los Alamos National Laboratory's (LANL) unique components and technologies for extremely fast data transfer, storage, and processing.

  4. The MAST data acquisition system - system architecture

    A new data acquisition (DA) system has been developed for the MAST experiment at Culham. It has also been implemented on the COMPASS experiment as a replacement for the old PDP-11 based data acquisition system and as a test bed for MAST. The DA system is distributed across a number of computers with a DA process for each distinct diagnostic system. An object-orientated approach is taken to the control and readout of each device in the system. It is designed to be independent of the hardware interfaces used on each diagnostic. The system is flexible enough to cope with diagnostics ranging from those involving simple time evolving signals to complex spectrometers, and will incorporate a new high speed distributed timing system. This system is also being considered as the interface to the real time Plasma Control system on MAST. A distributed scheduling system is used to co-ordinate the activity of each DA process with the Central Control system for each experiment. This paper describes the architecture of this data acquisition system with particular emphasis on the core of the data acquisition system. Aspects of distributed implementation of the system on real diagnostics are discussed in a companion paper

  5. A Service-oriented FPGA-based 3D Model Acquisition System

    MACHIDON, O. M.

    2015-11-01

    Full Text Available This paper proposes a non-contact, low cost 3D scanning solution using laser striping. The solution is composed of two main parts: the hardware setup - used for acquiring the object's 3D surface information, and the software part - that processes the information and obtains the 3D model representation of the object. We propose two major improvements over the traditional scanning solutions: the 3D information acquisition is based on a reconfigurable hardware platform - a Xilinx Spartan 6 FPGA - which adds flexibility and scalability to the scanning process, while the 3D model reconstruction is remotely available "as a Service", by the means of a web interface that abstracts away the complexity of the underlying processes and improves the performance, while granting easy sharing between users. By separating data capture process from the 3D model reconstruction tasks the system gains in portability - a feature that is absent for most existing solutions. The service-oriented approach brings on a performance gain, since the computational intensive tasks are handled by dedicated servers and ease of use of the system, because the user does not have to bother managing and using the software tools locally.

  6. Portable processor based data acquisition system for gamma-ray borehole logging

    A low power portable processor based data acquisition unit for gross and spectral gamma-ray logging was designed, developed and fabricated for in-situ quantitative measurement of radioactive elemental concentrations in boreholes, trenches, radioactive out crops and mines. The software incorporated in the system corrects for inter-channel contributions and does arithmetic calculations using count rates obtained for a preset time in potassium, uranium, thorium and total channels and displays the radio-elemental concentrations as well as uncorrected count rates in the channels on the front panel Liquid Crystal Display (LCD). Self-test diagnostic software along with appropriate audio-visual indications alleviates the operator problem normally encountered with conventional analog count-rate meters used so far. Bore-hole logging sonde with built-in multichannel analyser is being developed to acquire gamma-ray spectrums in a bore-hole for computation of radio-elemental concentrations, uranium/thorium discrimination and for study of lithology and stratigraphic correlation. This paper describes the hardware and software features developed for the system. (author). 1 ref., 2 figs

  7. Online Data Monitoring Framework Based on Histogram Packaging in Network Distributed Data Acquisition Systems

    Online monitor frameworkis a new general software framework for online data monitoring, which provides a way to collect information from online systems, including data acquisition, and displays them to shifters far from experimental sites. 'Monitor Server', a core system in this framework gathers the monitoring information from the online subsystems and the information is handled as collections of histograms named Histogram Package. Monitor Server broadcasts the histogram packages to 'Monitor Viewers', graphical user interfaces in the framework. We developed two types of the viewers with different technologies: Java and web browser. We adapted XML based file for the configuration of GUI components on the windows and graphical objects on the canvases. Monitor Viewer creates its GUIs automatically with the configuration files.This monitoring framework has been developed for the Double Chooz reactor neutrino oscillation experiment in France, but can be extended for general application to be used in other experiments. This document reports the structure of the online monitor framework with some examples from the adaption to the Double Chooz experiment.

  8. DEAP-3600 Data Acquisition System

    Lindner, Thomas

    2015-12-01

    DEAP-3600 is a dark matter experiment using liquid argon to detect Weakly Interacting Massive Particles (WIMPs). The DEAP-3600 Data Acquisition (DAQ) has been built using a combination of commercial and custom electronics, organized using the MIDAS framework. The DAQ system needs to suppress a high rate of background events from 39Ar beta decays. This suppression is implemented using a combination of online firmware and software-based event filtering. We will report on progress commissioning the DAQ system, as well as the development of the web-based user interface.

  9. Design of the SLAC RCE Platform: A General Purpose ATCA Based Data Acquisition System

    Herbst, R. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Claus, R. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Freytag, M. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Haller, G. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Huffer, M. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Maldonado, S. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Nishimura, K. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; O' Grady, C. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Panetta, J. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Perazzo, A. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Reese, B. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Ruckman, L. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Thayer, J. G. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.; Weaver, M. [SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Research Engineering Div.

    2015-01-23

    The SLAC RCE platform is a general purpose clustered data acquisition system implemented on a custom ATCA compliant blade, called the Cluster On Board (COB). The core of the system is the Reconfigurable Cluster Element (RCE), which is a system-on-chip design based upon the Xilinx Zynq family of FPGAs, mounted on custom COB daughter-boards. The Zynq architecture couples a dual core ARM Cortex A9 based processor with a high performance 28nm FPGA. The RCE has 12 external general purpose bi-directional high speed links, each supporting serial rates of up to 12Gbps. 8 RCE nodes are included on a COB, each with a 10Gbps connection to an on-board 24-port Ethernet switch integrated circuit. The COB is designed to be used with a standard full-mesh ATCA backplane allowing multiple RCE nodes to be tightly interconnected with minimal interconnect latency. Multiple shelves can be clustered using the front panel 10-gbps connections. The COB also supports local and inter-blade timing and trigger distribution. An experiment specific Rear Transition Module adapts the 96 high speed serial links to specific experiments and allows an experiment-specific timing and busy feedback connection. This coupling of processors with a high performance FPGA fabric in a low latency, multiple node cluster allows high speed data processing that can be easily adapted to any physics experiment. RTEMS and Linux are both ported to the module. The RCE has been used or is the baseline for several current and proposed experiments (LCLS, HPS, LSST, ATLAS-CSC, LBNE, DarkSide, ILC-SiD, etc).

  10. Design of the SLAC RCE Platform: A General Purpose ATCA Based Data Acquisition System

    The SLAC RCE platform is a general purpose clustered data acquisition system implemented on a custom ATCA compliant blade, called the Cluster On Board (COB). The core of the system is the Reconfigurable Cluster Element (RCE), which is a system-on-chip design based upon the Xilinx Zynq family of FPGAs, mounted on custom COB daughter-boards. The Zynq architecture couples a dual core ARM Cortex A9 based processor with a high performance 28nm FPGA. The RCE has 12 external general purpose bi-directional high speed links, each supporting serial rates of up to 12Gbps. 8 RCE nodes are included on a COB, each with a 10Gbps connection to an on-board 24-port Ethernet switch integrated circuit. The COB is designed to be used with a standard full-mesh ATCA backplane allowing multiple RCE nodes to be tightly interconnected with minimal interconnect latency. Multiple shelves can be clustered using the front panel 10-gbps connections. The COB also supports local and inter-blade timing and trigger distribution. An experiment specific Rear Transition Module adapts the 96 high speed serial links to specific experiments and allows an experiment-specific timing and busy feedback connection. This coupling of processors with a high performance FPGA fabric in a low latency, multiple node cluster allows high speed data processing that can be easily adapted to any physics experiment. RTEMS and Linux are both ported to the module. The RCE has been used or is the baseline for several current and proposed experiments (LCLS, HPS, LSST, ATLAS-CSC, LBNE, DarkSide, ILC-SiD, etc).

  11. Web-based data acquisition

    胡旭东; 俞红; 陈鹰

    2002-01-01

    The research work on Web-based long-distance data acquisition (DAQ) is valuable for application to tele-detection machine faults. With an expert system for machine fault detection, faults in a distantly located machine can be diagnosed through the internet. The distant user logs on to the expert system Web page, fills in the requirements, and starts-up the diagnose process. The system then connects to the DAQ server that is installed in the machine, samples data required for diagnoses through the internet, and sends back diagnose results. In such a long-distance system, Web-based DAQ plays an important role by automatic sampling and transferring of data through the internet. We have built an experimental data acquisition system using a National Instruments AT-MIO-16E-10 board running under Ch language environment. In this experimental example, the user can acquire data online. The principle of this experimental method is introduced in this paper. A detailed programming technique is described with an example.

  12. WRATS Integrated Data Acquisition System

    Piatak, David J.

    2008-01-01

    The Wing and Rotor Aeroelastic Test System (WRATS) data acquisition system (DAS) is a 64-channel data acquisition display and analysis system specifically designed for use with the WRATS 1/5-scale V-22 tiltrotor model of the Bell Osprey. It is the primary data acquisition system for experimental aeroelastic testing of the WRATS model for the purpose of characterizing the aeromechanical and aeroelastic stability of prototype tiltrotor configurations. The WRATS DAS was also used during aeroelastic testing of Bell Helicopter Textron s Quad-Tiltrotor (QTR) design concept, a test which received international attention. The LabVIEW-based design is portable and capable of powering and conditioning over 64 channels of dynamic data at sampling rates up to 1,000 Hz. The system includes a 60-second circular data archive, an integrated model swashplate excitation system, a moving block damping application for calculation of whirl flutter mode subcritical damping, a loads and safety monitor, a pilot-control console display, data analysis capabilities, and instrumentation calibration functions. Three networked computers running custom-designed LabVIEW software acquire data through National Instruments data acquisition hardware. The aeroelastic model (see figure) was tested with the DAS at two facilities at NASA Langley, the Transonic Dynamics Tunnel (TDT) and the Rotorcraft Hover Test Facility (RHTF). Because of the need for seamless transition between testing at these facilities, DAS is portable. The software is capable of harmonic analysis of periodic time history data, Fast Fourier Transform calculations, power spectral density calculations, and on-line calibration of test instrumentation. DAS has a circular buffer archive to ensure critical data is not lost in event of model failure/incident, as well as a sample-and-hold capability for phase-correct time history data.

  13. Acquisition system for the CLIC Module

    Vilalte, Sebastien

    2011-01-01

    The status of R&D activities for CLIC module acquisition are discussed [1]. LAPP is involved in the design of the local CLIC module acquisition crate, described in the document Study of the CLIC Module Front-End Acquisition and Evaluation Electronics [2]. This acquisition system is a project based on a local crate, assigned to the CLIC module, including several mother boards. These motherboards are foreseen to hold mezzanines dedicated to the different subsystems. This system has to work in radiation environment. LAPP is involved in the development of Drive Beam stripline position monitors read-out, described in the document Drive Beam Stripline BPM Electronics and Acquisition [3]. LAPP also develops a generic acquisition mezzanine that allows to perform all-around acquisition and components tests for drive beam stripline BPM read-out.

  14. Data Driven - Android based displays on data acquisition and system status

    Canilho, Paulo

    2014-01-01

    For years, both hardware and software engineers have struggled with the acquisition of device information in a flexible and fast perspective, numerous devices cannot have their status quickly tested due to time limitation associated with the travelling to a computer terminal. For instance, in order to test a scintillator status, one has to inject beam into the device and quickly return to a terminal to see the results, this is not only time demanding but extremely inconvenient for the person responsible, it consumes time that would be used in more pressing matters. In this train of thoughts, the proposal of creating an interface to bring a stable, flexible, user friendly and data driven solution to this problem was created. Being the most common operative system for mobile display, the Android API proved to have the best efficient in financing, since it is based on an open source software, and in implementation difficulty since it’s backend development resides in JAVA calls and XML for visual representation...

  15. Programmable-System-on-Chip-based data acquisition system for educational purposes

    Manzano Rubio, Fernando

    2012-01-01

    The project aims to implement a PSoC DVK based DAS system learning resource. The idea is to provide a way to develop signal acquiring basic knowledge, as well as a tool to implement simple measures. In order to do it, hardware and software have been implemented. Hardware consists of PSoC DVK, which has the functions of AC and DC signal acquiring and generating, showing information about the selected function and the acquired signal through a display, and transmitting the acquired samples t...

  16. Fast data acquisition system based on digital oscilloscopes for fluctuation measurements in a long pulse JT-60U tokamak plasma

    We have developed a new data acquisition (DAQ) system with fast sampling rate for fluctuation measurements in a long pulse JT-60U tokamak plasma. This system is based on a powerful digital oscilloscope, which has a large acquisition memory up to 50 Mwords/ch, 1 MHz sampling rate and 16 bits high resolution AD convertors. The system is composed of plural digital oscilloscopes and mass storages. On this system, most of data acquisition processes are executed at each digital oscilloscope. This feature of the system leads to an advantage that the processing loads are distributed among the digital oscilloscopes. This system has been successfully employed for measurements of various fluctuations obtained through magnetic probes, beam emission spectroscopy and so on. The size of the acquired data using this system has reached up to 10 GB/shot so far. It has demonstrated that this system is very powerful for data acquisition of multi-channeled signals with high time resolution in a long pulse plasma

  17. Computer-based data acquisition system in the Large Coil Test Facility

    The utilization of computers for data acquisition and control is of paramount importance on large-scale fusion experiments because they feature the ability to acquire data from a large number of sensors at various sample rates and provide for flexible data interpretation, presentation, reduction, and analysis. In the Large Coil Test Facility (LCTF) a Digital Equipment Corporation (DEC) PDP-11/60 host computer with the DEC RSX-11M operating system coordinates the activities of five DEC LSI-11/23 front-end processors (FEPs) via direct memory access (DMA) communication links. This provides host control of scheduled data acquisition and FEP event-triggered data collection tasks. Four of the five FEPs have no operating system

  18. A microcomputer-based data acquisition system for diagnostic monitoring and control of high-speed electric motors

    Moyers, Kevin Keith

    1987-01-01

    A microcomputer-based data acquisition and control system was designed for the diagnostic monitoring and control of high-speed electric motors. The system was utilized in high-speed bearing life-testing, using an electric motor as a test vehicle. Bearing vibration and outer race temperature were continuously monitored for each ball bearing in the motor. In addition, the stator winding and motor casing temperature were monitored. The monitoring system was successful i...

  19. Distributed mass data acquisition system based on PCs and windows NT for LHD fusion plasma experiment

    A new data acquisition and management system has been developed for the LHD experiment. It has the capability to process 100 MB - 1 GB raw data within a few tens seconds after every plasma discharge. It employs wholly distributed and loosely-tied parallel tasking structure through a fast network, and the cluster of the distributed database severs seems to be a virtual macro-machine as a whole. A PC/Windows NT computer is installed for each diagnostics data acquisition of about 30 kinds, and it controls CAMAC digitizers through the optical SCSI extenders. The diagnostic timing system consists of some kinds of VME modules that are installed to remotely control the diagnostic devices in real-time. They can, as a whole system, distribute the synchronous sampling clocks and programmable triggers for measurement digitizers. The data retrieving terminals can access database as application service clients, and are functionally separated from the data acquisition severs by way of the switching Ethernet. (author)

  20. DANSS Experiment Data Acquisition System

    Hons, Zdenek

    2016-01-01

    DANSS (Detector of the reactor AntiNeutrino based on Solid Scintillator) is a project aiming to measure a spectrum of reactor antineutrinos using inverse beta decay (IBD) in a plastic scintillator. The detector is located close to an industrial nuclear reactor core and is covered by passive and active shielding. It is expected to detect about 15000 IBD events per day. Light from the detector is sensed by PMT and SiPM. This paper describes the data acquisition system used for data readout of the 50 detector PMT channels and active shielding. Theoretical approach to the data acquisition is described and two possible solutions using QDCs and digitizers are discussed. Also described are the results of the DAQ performance during routine data taking operation of the detector.

  1. Development of Labview based data acquisition and multichannel analyzer software for radioactive particle tracking system

    Rahman, Nur Aira Abd; Yussup, Nolida; Abdullah, Jaafar B.; Ibrahim, Maslina Bt. Mohd; Abdullah, Nor Arymaswati; Mokhtar, Mukhlis B.; Hassan, Hearie B.

    2015-04-01

    A DAQ (data acquisition) software called RPTv2.0 has been developed for Radioactive Particle Tracking System in Malaysian Nuclear Agency. RPTv2.0 that features scanning control GUI, data acquisition from 12-channel counter via RS-232 interface, and multichannel analyzer (MCA). This software is fully developed on National Instruments Labview 8.6 platform. Ludlum Model 4612 Counter is used to count the signals from the scintillation detectors while a host computer is used to send control parameters, acquire and display data, and compute results. Each detector channel consists of independent high voltage control, threshold or sensitivity value and window settings. The counter is configured with a host board and twelve slave boards. The host board collects the counts from each slave board and communicates with the computer via RS-232 data interface.

  2. Development of Labview based data acquisition and multichannel analyzer software for radioactive particle tracking system

    A DAQ (data acquisition) software called RPTv2.0 has been developed for Radioactive Particle Tracking System in Malaysian Nuclear Agency. RPTv2.0 that features scanning control GUI, data acquisition from 12-channel counter via RS-232 interface, and multichannel analyzer (MCA). This software is fully developed on National Instruments Labview 8.6 platform. Ludlum Model 4612 Counter is used to count the signals from the scintillation detectors while a host computer is used to send control parameters, acquire and display data, and compute results. Each detector channel consists of independent high voltage control, threshold or sensitivity value and window settings. The counter is configured with a host board and twelve slave boards. The host board collects the counts from each slave board and communicates with the computer via RS-232 data interface

  3. Development of Labview based data acquisition and multichannel analyzer software for radioactive particle tracking system

    Rahman, Nur Aira Abd, E-mail: nur-aira@nuclearmalaysia.gov.my; Yussup, Nolida; Ibrahim, Maslina Bt. Mohd; Abdullah, Nor Arymaswati; Mokhtar, Mukhlis B. [Technical Support Division, Malaysian Nuclear Agency, 43000, Kajang, Selangor (Malaysia); Abdullah, Jaafar B.; Hassan, Hearie B. [Industrial Technology Division, Malaysian Nuclear Agency, 43000, Kajang, Selangor (Malaysia)

    2015-04-29

    A DAQ (data acquisition) software called RPTv2.0 has been developed for Radioactive Particle Tracking System in Malaysian Nuclear Agency. RPTv2.0 that features scanning control GUI, data acquisition from 12-channel counter via RS-232 interface, and multichannel analyzer (MCA). This software is fully developed on National Instruments Labview 8.6 platform. Ludlum Model 4612 Counter is used to count the signals from the scintillation detectors while a host computer is used to send control parameters, acquire and display data, and compute results. Each detector channel consists of independent high voltage control, threshold or sensitivity value and window settings. The counter is configured with a host board and twelve slave boards. The host board collects the counts from each slave board and communicates with the computer via RS-232 data interface.

  4. A PC based intelligent data acquisition system for radiation dose monitoring

    Monitoring radiation levels of various areas of the hot-cells and associated active laboratories is essential for ensuring safety of the operating staff. Area gamma monitors installed at various location in the laboratory to monitor and record radiation dose in the vicinity area of their installation. These are stand alone instruments and offer local display of radiation level, generate local alarm and indication, if radiation level exceeds the set value. The existing system has several limitations, such as individual monitors display local reading and alarm. Neither centralized display, nor data logging is possible. History is not available. No Remote accept/reset facility. Routine checking by the personnel is only way to find out status of the monitors. New intelligent data acquisition system for monitoring area gamma monitors has been designed and developed to overcome these difficulties. The new system has been installed in the laboratories of Post Irradiation Examination Division of BARC. The major components of the system include: intelligent I/O modules located in the field near gamma monitor, fully configurable SCADA software and application program. The system has been tested and commissioned. New Data Acquisition System offers features such as real time on line data logging and storage; alarm logging, remote accept/reset facilities etc. The present paper describes the system in detail. (author)

  5. A LabVIEW-based data acquisition and processing system for synchrotron radiation monitoring

    Beam size measurement of an accelerator is very important to parameter optimization of the system's operation. The Shanghai Synchrotron Radiation Facility (SSRF) adopts synchrotron light measurement to perform real-time monitoring of the beam size without let or hindrance. In this paper, we introduce the light measurement system, including the light path control, data acquisition and data processing, in which LabVIEW is used to treat data from double slits interferometer. Precision of the beam size measurement can be at μm level. (authors)

  6. Bus-based architectures in the H1 data acquisition system

    The recently commissioned Hadron-Electron Ring Anage (HERA) electron-proton collider at DESY, Deutsches Elektronen Synchrotron has presented a challenging environment in coping with huge volumes of data in real-time. With bunch-crossing intervals of 96 nanoseconds, the H1 experiment can generate nearly 3 Megabytes of raw digital information from several hundred thousand electronic channels. The open VMEbus standard is exploited to provide the necessary modularity and system flexibility for embedding fast readout electronics in a multiprocessor design array. The architectural concepts of the data acquisition structure are discussed together with many of the experiences gained in implementing a large multi-crate system. (author)

  7. Architecture of the unified VME-based data acquisition system for the spectrometers at the IBR-2 reactor

    This report contains a brief description of the architecture and technical implementation of unified data acquisition systems for neutron spectrometers at IBR-2. These systems are based on a limited but functionally complete set of identical (from the viewpoint of hardware) VME blocks, in which the distinction in parameters, functional capabilities, encoding, as well as in correction and preliminary data processing procedures are realized by means of micro programs; electronic tables, switches, etc. (author)

  8. Interactive Knowledge Acquisition in Case Based Reasoning

    Cordier, Amélie; Fuchs, Béatrice; Lieber, Jean; Mille, Alain

    2007-01-01

    International audience In Case Based Reasoning (CBR), knowledge acquisition plays an important role as it allows to progressively improve the system's competencies. One of the approaches of knowledge acquisition consists in performing it while the system is used to solve a problem. An advantage of this strategy is that it is not to constraining for the expert: the system exploits its interactions to acquire pieces of knowledge it needs to solve the current problem and takes the opportunity...

  9. Windows-based acquisition and image reconstruction for a multi-element imaging system

    A system has been developed for acquiring data from a multi-element gamma ray imaging device. Data is acquired and stored in a flexible list mode format, which allows all necessary analyses and hardware diagnostics to be performed in one application. This system is currently used with a Compton scatter camera for detector calibration, data collection, count rate display for individual elements, histogram display, and image reconstruction and display. The software is implemented on a personal computer with a 33 MHz 80486 processor and 8 Mb of RAM under Microsoft Windows copyright Version 3.1. The maximum acquisition rate of the system is 8,000 counts per second. The system allows other applications to operate while it is acquiring data and has been written to easily accommodate additional analysis tools and different imaging systems

  10. Multi spectral scaling data acquisition system

    In nuclear spectroscopy applications, it is often desired to acquire data at high rate with high resolution. With the availability of low cost computers, it is possible to make a powerful data acquisition system with minimum hardware and software development, by designing a PC plug-in acquisition board. But in using the PC processor for data acquisition, the PC can not be used as a multitasking node. Keeping this in view, PC plug-in acquisition boards with on-board processor find tremendous applications. Transputer based data acquisition board has been designed which can be configured as a high count rate pulse height MCA or as a Multi Spectral Scaler. Multi Spectral Scaling (MSS) is a new technique, in which multiple spectra are acquired in small time frames and are then analyzed. This paper describes the details of this multi spectral scaling data acquisition system. 2 figs

  11. A Measure of Systems Engineering Effectiveness in Government Acquisition of Complex Information Systems: A Bayesian Belief Network-Based Approach

    Doskey, Steven Craig

    2014-01-01

    This research presents an innovative means of gauging Systems Engineering effectiveness through a Systems Engineering Relative Effectiveness Index (SE REI) model. The SE REI model uses a Bayesian Belief Network to map causal relationships in government acquisitions of Complex Information Systems (CIS), enabling practitioners to identify and…

  12. DANSS Experiment Data Acquisition System

    Hons, Zdenek; Vlášek, Jakub

    2016-01-01

    DANSS (Detector of the reactor AntiNeutrino based on Solid Scintillator) is a project aiming to measure a spectrum of reactor antineutrinos using inverse beta decay (IBD) in a plastic scintillator. The detector is located close to an industrial nuclear reactor core and is covered by passive and active shielding. It is expected to detect about 15000 IBD events per day. Light from the detector is sensed by PMT and SiPM. This paper describes the data acquisition system used for data readout of t...

  13. A self contained Linux based data acquisition system for 2D detectors with delay line readout

    This article describes a fast and self-contained data acquisition system for 2D gas-filled detectors with delay line readout. It allows the realization of time resolved experiments in the millisecond scale. The acquisition system comprises of an industrial PC running Linux, a commercial time-to-digital converter and an in-house developed histogramming PCI card. The PC provides a mass storage for images and a graphical user interface for system monitoring and control. The histogramming card builds images with a maximum count rate of 5 MHz limited by the time-to-digital converter. Histograms are transferred to the PC at 85 MB/s. This card also includes a time frame generator, a calibration channel unit and eight digital outputs for experiment control. The control software was developed for easy integration into a beamline, including scans. The system is fully operational at the Spanish beamline BM16 at the ESRF in France, the neutron beamlines Adam and Eva at the ILL in France, the Max Plank Institute in Stuttgart in Germany, the University of Copenhagen in Denmark and at the future ALBA synchrotron in Spain. Some representative collected images from synchrotron and neutron beamlines are presented

  14. Data acquisition system for MEGHA

    A multi-channel data acquisition system has been commissioned for the Charissa 'MEGHA' detector array. It is designed to read multiparameter events where there are many potential channels (320) but where only a fraction of these are active in any typical event. Custom-built pre- and main amplifiers process the amplitude (energy) signal from each detector and the system records both amplitude and time of arrival for each signal within an event. The signal amplitude is converted to time using the standard Wilkinson technique and then combined with its time of arrival into a single time trace. These traces are converted by multi-hit TDCs, which only convert the active channels and thus reduce the processing load. Additional custom-built CAMAC modules organise the TDC output into a suitable form for storage and transmission to a network of processor terminals over standard ethernet. This paper presents a description of the data acquisition system from preamplifier through to final storage in a VME-based system and subsequent distribution to a network of Sun terminals over ethernet. The system performance is illustrated with results from heavy-ion elastic scattering recorded with position sensitive strip detectors

  15. Aircraft Nodal Data Acquisition System (ANDAS) Project

    National Aeronautics and Space Administration — Development of an Aircraft Nodal Data Acquisition System (ANDAS) based upon the short haul Zigbee networking standard is proposed. It employs a very thin (135 um)...

  16. Development of data acquisition system for small-scale industrial CT based on USB2.0

    In order to meet the requirements of the small-scale industrial CT of small size, needing small quantities of detector, in short-transmission distance, it designs a kind of data acquisition system based on a small interval detector, FPGA and USB2.0. The system pick X-CARD 0.2-256G as the detector chip. FPGA is the master chip, which controls the timing of data-collecting-block and detecting-block, storages the data, then sends it to host PC through the USB interface chip EZ-FX2LP CY7C68013A for image reconstruction. The system has been verified by experiment, and the results show that the USB transfer speed can reach 33.2 MB/s. The system satisfies the requirements of data acquisition for small-scale industrial CT. (authors)

  17. A flexible LabVIEWTM-based data acquisition and analysis system for scanning microscopy

    A new data analysis system has been developed with computer-controlled beam and sample positioning, video sample imaging, multiple large solid angle detectors for X-rays and gamma-rays, and surface barrier detectors for charged particles. The system uses the LabVIEWTM programming language allowing it to be easily ported between different computer operating systems. In the present configuration, digital signal processors are directly interfaced to a SCSI CAMAC controller. However, the modular software design permits the substitution of other hardware with LabVIEW-supported drivers. On-line displays of histogram and two-dimensional elemental map images provide a user-friendly data acquisition interface. Subregions of the two-dimensional maps may be selected interactively for detailed analysis or for subsequent scanning. Off-line data processing of archived data currently yields elemental maps, analyzed spectra and reconstructions of tomographic data

  18. A flexible Labviewtrademark-based data acquisition and analysis system for scanning microscopy

    A new data analysis system has been developed with computer-controlled beam and sample positioning, video sample imaging, multiple large solid angle detectors for x-rays and gamma-rays, and surface barrier detectors for charged particles. The system uses the LabVIEWtrademark programming language allowing it to be easily ported between different computer operating systems. In the present configuration, digital signal processors are directly interfaced to a SCSI CAMAC controller. However, the modular software design permits the substitution of other hardware with LabVIEW-supported drivers. On-line displays of histogram and two-dimensional elemental map images provide a user-friendly data acquisition interface. Subregions of the two-dimensional maps may be selected interactively for detailed analysis or for subsequent scanning. Off-line data processing of archived data currently yields elemental maps, analyzed spectra and reconstructions of tomographic data

  19. System Definition-Enabled Acquisition (SDEA)'A Concept for Defining Requirements for Applying Model-Based Systems Engineering (MBSE) to the Acquisition of DoD Complex Systems

    Paul Montgomery; Ron Carlson; John Quartuccio

    2012-01-01

    Proceedings Paper (for Acquisition Research Program) The complexity of designing and acquiring weapons systems continues to increase due to highly integrated system architectures, rapid technology evolution, and emergence of highly diverse set of missions. The imperatives of system-of-systems integration and interoperability further complicate the system acquisition process. These challenges continue to frustrate completing the acquisition of systems within time and budget goals. The acqui...

  20. Multi-modal Intelligent Seizure Acquisition (MISA) system - A new approach towards seizure detection based on full body motion measures

    Conradsen, Isa; Beniczky, Sándor; Wolf, Peter; Terney, Daniella; Sams, Thomas; Sørensen, Helge Bjarup Dissing

    hazards. Today no reliable alarm systems are available. A Multi-modal Intelligent Seizure Acquisition (MISA) system based on full body motion data seems as a good approach towards detection of epileptic seizures. The system is the first to provide a full body description for epilepsy applications. Three......) and audio and video recording. The results showed that a non-subject specific MISA system developed on data from the modalities: accelerometer (ACM), gyroscope and EMG is able to detect 98% of the simulated seizures and at the same time mistakes only 4 of the normal movements for seizures. If the...

  1. Microcontroller-Based Fault Tolerant Data Acquisition System For Air Quality Monitoring And Control Of Environmental Pollution

    Tochukwu Chiagunye; Eze Aru Okereke; Ilo Somtoochukwu

    2015-01-01

    ABSTRACT The design applied Passive fault tolerance to a microcontroller based data acquisition system to achieve the stated considerations where redundant sensors and microcontrollers with associated circuitry were designed and implemented to enable measurement of pollutant concentration information from chimney vents in two industry. Microsoft visual basic was used to develop a data mining tool which implemented an underlying artificial neural network model for forecasting pollutant concent...

  2. A USB-2 based portable data acquisition system for detector development and nuclear research

    A highly portable high-speed CAMAC data acquisition system has been developed using Kmax software (Sparrow, Inc.) for Macintosh laptop and tower computers. It uses a USB-2 interface to the CAMAC crate controller with custom-written software drivers. Kmax permits 2D parameter gating and specific algorithms have been developed to facilitate the rapid evaluation of various multi-element nuclear detectors for energy and time-of-flight measurements. This includes tests using neutrons from 252Cf and a 2.5 MeV neutron generator as well as standard gamma calibration sources such as 60Co and 137Cs. In addition, the system has been used to measure gamma-gamma coincidences over extended time periods using radioactive sources (e.g., Ra-228, Pa-233, Np-237, and Am-243).

  3. A USB-2 based portable data acquisition system for detector development and nuclear research

    Jiang Hao; Ojaruega, M. [Department of Physics, University of Michigan, Ann Arbor, MI 48109 (United States); Becchetti, F.D., E-mail: fdb@umich.edu [Department of Physics, University of Michigan, Ann Arbor, MI 48109 (United States); Griffin, H.C.; Torres-Isea, R.O. [Department of Physics, University of Michigan, Ann Arbor, MI 48109 (United States)

    2011-10-01

    A highly portable high-speed CAMAC data acquisition system has been developed using Kmax software (Sparrow, Inc.) for Macintosh laptop and tower computers. It uses a USB-2 interface to the CAMAC crate controller with custom-written software drivers. Kmax permits 2D parameter gating and specific algorithms have been developed to facilitate the rapid evaluation of various multi-element nuclear detectors for energy and time-of-flight measurements. This includes tests using neutrons from {sup 252}Cf and a 2.5 MeV neutron generator as well as standard gamma calibration sources such as {sup 60}Co and {sup 137}Cs. In addition, the system has been used to measure gamma-gamma coincidences over extended time periods using radioactive sources (e.g., Ra-228, Pa-233, Np-237, and Am-243).

  4. Portable Data Acquisition System Project

    National Aeronautics and Space Administration — Armstrong researchers have developed a portable data acquisition system (PDAT) that can be easily transported and set up at remote locations to display and archive...

  5. BESII online data acquisition system

    The authors introduce the hardware configuration, software structure and upgrading of the BES online data acquisition system, and also report the run status and abilities of the online data monitor and analysis after upgrading

  6. Behavior of a trapezoid-based data acquisition system up to 100 kHz and beyond

    In this work, we investigated the ability of a high-purity germanium detector connected to a trapezoid-filter-based data acquisition system to reliably record signals in spite of high sample activities. By activating multiple Na2CO3 samples with different Na content, we were able to deduce efficiency, resolution and dead time of the system used as a function of the sample activity. Based on the results, we were able to find a setting which allows measurements of event rates up to 35 kHz per readout channel with an energy resolution of 0.3% at the 2754 keV 24Na line

  7. Summary of control and data acquisition systems for Nova based inertial confinement studies

    The Nova Laser has completed its first year of operation. During this period, emphasis has been placed on activation of the facility and of the numerous target and beam diagnostics. Two separate target chambers are in use. Nova operation is separated into two broad functions: laser operations and experiments. The operations group provides the laser system control, operation and data acquisition and the experiments group provides experiment definition, diagnostic instrumentation and overall data processing. This paper reports on the overall Operations side. VAX 11/780 computers are used to set up diagnostic operating parameters and collect data recorded by the CAMAC and CCD modules. These data are delivered in files by electronic link to the laser experiments and analysis facility (LEAF) VAX 11/785 of the experiments group for processing. Film data are digitized at LEAF and the film data files also processed on the LEAF VAX

  8. Design and development of CRIO based data acquisition and control system for high voltage bushing experiment

    In Diagnostic Neutral Beam (DNB), High Voltage (HV) bushing is an interface between the HV transmission line and Beam source. For validating the design of HVB of DNB, a scaled down configuration of the Bushing is fabricated, referred to as PHVB and assembled. This PHVB is to be subjected to long duration HV tests up to 60 kV under vacuum conditions for verifying the voltage holding capacity of the bushing. For automating the entire experimental process of HVB experiment and acquiring important experimental data up to 3600 sec for post analysis, a dedicated Data Acquisition and Control System (DACS) is required. This will help in understanding the behavior of the PHVB in High voltage and vacuum environment. Also it is required that high speed breakdown events are monitored. CRIO (compact reconfigurable input output) is a rugged, small sized hardware platform which combines the power of real time processor and FPGA bus. It is becoming an upcoming standard for medium sized experiment. For ensuring smooth control operation of the experiment; NI CRIO was selected as the controller for DACS. In this experiment the CRIO provides a user interface for setting of important control set points of power supply and vacuum system. Also it provides seamless control and acquisition for pulse durations of up to 3600 sec. The voltage signal is generated as a ramp signal with upper voltage set point. The ramp rate applied is 1.5 kV/min and is user configurable. The testing of PHVB has been successfully completed using the developed DACS. In this paper the technical details of DACS design, implementation and test results shall be discussed. (author)

  9. The standard GANIL data acquisition system

    The GANIL general data acquisition system is described, which is based on VME crates distributed in several experimental areas, linked to a VAX cluster by optical fibers and ethernet for control and storage. Acquisition buses are CAMAC, FERA and VXI. The system configuration, experiment description procedures and adaptation for VXI and remote controls for the 4π INDRA detector are presented. The INDRA asynchronous electronic trigger is also discussed. (author) 2 refs., 4 figs

  10. Development of PC based control and data acquisition system for photphysics beamline at Indus-1 synchrotron source

    A control and data acquisition system (DAS) has been designed and developed for photophysics beamline facility at Indus-1, CAT, Indore. It consists of two independent DASs for two monochromators e.g. 1-meter Seya-Namioka monochromator developed indigenously and a microcontroller based 1/4 meter Czerny-Turner monochromator procured from M/s CVI Laser. Each DAS performs tasks such as grating movement control, signal detection, digitization and acquisition. For this purpose, hardware has been developed around procured components e.g. stepper motor, driver, photomultiplier tube, counter/timer/DIO card, etc. These components are interconnected through a control and data acquisition unit developed in-house and are being controlled using a PC. User-friendly software has been developed using VC++ to provide modes like move to wavelength, scan wavelength, single step, set parameters, check reference and plot of scan data. The system performance has been tested with standard source (Hg lamp) and found to be satisfactory. Absorption spectrum of benzene and fluorescence spectrum of typical multilayer (Gd2O3 + SiO2+ Gd2O3 tri-layer) have been recorded with this setup. The stability of the system is excellent and the data recorded at very low beam current, i.e. lower than 8 mA beam current for fluorescence signal, also provides significant information of the sample. The system is being used for characterization of various gaseous and solid-state samples. (author)

  11. IBM PC based supervisory control and data acquisition (SCADA) system for uranium metal purification plant

    Uranium Metal Plant (UMP) is using solvent extraction for production of pure metal nitrate solution. This is achieved with the help of slurry extraction process in which aqueous metal solution is contacted with an immiscible organic phase, controlled by chemical equilibrium. The phase transfer of metal is selectively achieved. Two phases are then allowed to separate by difference in densities. The aqueous and organic solutions are mixed by air lifting and separated in the settler tank. At each stage a large amount of organic stream is recycled from settler to mixer, to avoid formation of stable emulsion due to the presence of solids in aqueous phase. The whole process has considerable hold-up and is very slow. Any change, is responded very slowly and hence very accurate measurement and control of parameters are required. In case of failure or in emergency, if correct and safe actions are not taken, it will cause considerable loss. Thus to achieve higher efficiency in extraction and better yield, a modern automatic control system is important. A compact reliable interactive control system, required to keep the operator updated with all the information regarding plant must be available and the operator can take necessary actions at the earliest. Supervisory control and data acquisition (SCADA) system discussed here relates to the slurry extraction process of UMP. (author). 1 fig

  12. IBM-PC based data acquisition system for a laser enhanced ionisation spectrometer using a low cost GPIB card

    An IBM-PC based data acquisition system has been developed for the existing laser enhanced ionisation spectrometer in the Division. Here the boxcar averager (type SR 250) which integrates the spectrometer output is interfaced to an IBM-PC, converted into a GPIB controller with the help of a locally available GPIB card, (Dynalog Micro Systems make PCL 848) through the GPIB port of the computer interface module (SR 245). The menu driven software developed in BASIC, triggers the scan in the dye laser through its control port, collects data from the spectrometer, plots, displays and stores it on the hard disc for further use. (author). 6 refs., 18 figs., 2 appendixes

  13. Data acquisition on a VME/68000 system

    A data acquisition system for correlated or independent events handling has been designed. This system is based on VME boards and 68000 processors. The software include data taking, on line sort and storage on magnetic tape. A driver has been written under the UNIX operating system for a high graphic resolution VME board, this implementation was provided as an off-line facility. (author)

  14. A Scaler-Based Data Acquisition System for Measuring Parity Violation Asymmetry in Deep Inelastic Scattering

    Subedi, Ramesh; Pan, Kai; Deng, Xiaoyan; Michaels, Robert; Reimer, Paul E; Shahinyan, Albert; Wojtsekhowski, Bogdan; Zheng, Xiaochao

    2013-01-01

    An experiment that measured the parity violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the $10^{-4}$ level needed to be measured at event rates up to 500 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: The pion contamination in the electron samples was controlled at the order of $2\\times 10^{-4}$ or below with an electron efficiency of higher than 91% throughout the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.2%, and the statistical quality of the asymmetry measuremen...

  15. The meteorological data acquisition system

    The 200 m meteorological tower of the Karlsruhe Nuclear Research Center has been equipped with 45 instruments measuring the meteorological parameters near the ground level. Frequent inquiry of the instruments implies data acquisition with on-line data reduction. This task is fulfilled by some peripheral units controlled by a PDP-8/I. This report presents details of the hardware configuration and a short description of the software configuration of the meteorological data acquisition system. The report also serves as an instruction for maintenance and repair work to be carried out at the system. (orig.)

  16. Full-wave-equation depth extrapolation for true amplitude migration based on a dual-sensor seismic acquisition system

    You, Jiachun; Li, Guangcai; Liu, Xuewei; Han, Wengong; Zhang, Guangde

    2016-03-01

    Most depth extrapolation schemes are based on a one-way wave equation, which possesses limited ability to provide the true amplitude values of reflectors that are highly important for amplitude-versus-offset inversion. After analysing the weaknesses of current migration methods and explaining the reason why wavefields cannot be extrapolated using the full-wave equation in the depth direction, a full-wave-equation migration method based on a new seismic acquisition system is proposed to provide accurately dynamic information of reflection interfaces for migration. In this new seismic acquisition system, double sensor data are provided to solve the acoustic wave equation in the depth domain accurately. To test the performance of recovering the true amplitudes of the full-wave-equation migration, we used a single shot gather and several multiple shot gathers produced by a 2-D numerical modelling technique to demonstrate that our methodology provides better estimated true amplitudes than that of the conventional Kirchhoff and reverse time migration algorithms through comparison of the amplitudes of the target reflectors with its theoretical reflection coefficients. Because double sensors are applied to implement the full-wave-equation migration, it is necessary to study the perfect distance between the double sensors to diminish the migration error for future practical exploration. Based on the application of the full-wave-equation migration method to the first set of actual seismic data collected from our double sensor acquisition system, our proposed method yields higher imaging quality than that of conventional methods. Numerical experiments and actual seismic data show that our proposed method has built a new bridge between true amplitude common-shot migration and full-wave-equation depth extrapolation.

  17. Design of data acquisition system for double linear CCD based on FPGA and USB 2.0

    The paper discusses a design of data acquisition system for double linear CCD (Charge Coupled Device) based on FPGA and USB2.0 interface. It analyses the driving schedules pulse of the TCD1001P and gives one method for designing of driving schedules pulse, then it briefly introduces the GPIF (General Programmable Interface) working models of the USB controller EZ-USB FX2 (CY7C68013). At last, this paper introduces the design of the firmware and windows drivers for USB device. (authors)

  18. Microcontroller-Based Fault Tolerant Data Acquisition System For Air Quality Monitoring And Control Of Environmental Pollution

    Tochukwu Chiagunye

    2015-08-01

    Full Text Available ABSTRACT The design applied Passive fault tolerance to a microcontroller based data acquisition system to achieve the stated considerations where redundant sensors and microcontrollers with associated circuitry were designed and implemented to enable measurement of pollutant concentration information from chimney vents in two industry. Microsoft visual basic was used to develop a data mining tool which implemented an underlying artificial neural network model for forecasting pollutant concentrations for future time periods. The feed forward back propagation method was used to train the ANN model with a training data set while a decision tree algorithm was used to select an optimal output result for the model from its two output neurons.

  19. Models, methods and software for distributed knowledge acquisition for the automated construction of integrated expert systems knowledge bases

    Based on an analysis of existing models, methods and means of acquiring knowledge, a base method of automated knowledge acquisition has been chosen. On the base of this method, a new approach to integrate information acquired from knowledge sources of different typologies has been proposed, and the concept of a distributed knowledge acquisition with the aim of computerized formation of the most complete and consistent models of problem areas has been introduced. An original algorithm for distributed knowledge acquisition from databases, based on the construction of binary decision trees has been developed

  20. Two Demonstrations with a New Data-Acquisition System

    Kraftmakher, Yaakov

    2014-01-01

    Nowadays, the use of data-acquisition systems in undergraduate laboratories is routine. Many computer-assisted experiments became possible with the PASCO scientific data-acquisition system based on the 750 Interface and DataStudio software. A new data-acquisition system developed by PASCO includes the 850 Universal Interface and Capstone software.…

  1. A LabVIEW-based data acquisition system for the UTEP/Orsay Instrumented Collimator

    Full text: We have successfully employed an instrumented collimator of aperture 2 mm for the g8a run (summer, 2001) in Hall B of Jefferson Lab, which was designed and tested by UTEP and engineered and built by the Institut de Physique Nucl ire in Orsay, France. The instrumentation of the collimator consists of four radially mounted scintillator + light guide + PMT elements possessing a left-right, up-down symmetry, which afforded the beam of photons to be precisely aligned to the central axis of the collimator. The collimator was sensitive to rather modest beam motion of the order of a few tens of microns. We made use of the physical fact that the emission angle of the coherent Bremsstrahlung photon component is correlated with its energy for enhancing the degree of polarization of the photon beam. We can extract the spectral peak by tightly collimating the beam and thereby reduce the incoherent background, which further serves to increase the degree of polarization. The maximum polar angle is limited by the opening angle of the collimator, which gives the lower limit for the coherent Bremsstrahlung photon energy. To achieve polarizations exceeding 75%, we must collimate the beam to better than one half of a characteristic angle. This means for a collimator-goniometer distance of 22 m, the aperture of the collimator should be ∼ 2 mm for an incident electron energy of Eo 5.7 GeV. We will report primarily on the bench top data acquisition system (DAQ), which interfaced LabVIEW through a SCSI connection to the VME back plane to readout CAEN QDCs. We employed this DAQ to test and calibrate the instrumented collimator. Our efforts were quite successful in that the device functioned beyond design specifications within one hour after the photon beam was directed onto the bore hole of the collimator. (Author)

  2. Knowledge acquisition from natural language for expert systems based on classification problem-solving methods

    Gomez, Fernando

    1989-01-01

    It is shown how certain kinds of domain independent expert systems based on classification problem-solving methods can be constructed directly from natural language descriptions by a human expert. The expert knowledge is not translated into production rules. Rather, it is mapped into conceptual structures which are integrated into long-term memory (LTM). The resulting system is one in which problem-solving, retrieval and memory organization are integrated processes. In other words, the same algorithm and knowledge representation structures are shared by these processes. As a result of this, the system can answer questions, solve problems or reorganize LTM.

  3. LabVIEW-based control and data acquisition system for cathodoluminescence experiments

    Bok, Jan; Schauer, Petr

    2011-01-01

    Roč. 82, č. 11 (2011), 113109:1-6. ISSN 0034-6748 R&D Projects: GA ČR GAP102/10/1410 Institutional research plan: CEZ:AV0Z20650511 Keywords : cathodoluminescence (CL) * LabVIEW * data acquisition Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering Impact factor: 1.367, year: 2011

  4. The ALICE data acquisition system

    Carena, F; Chapeland, S; Chibante Barroso, V; Costa, F; Dénes, E; Divià, R; Fuchs, U; Grigore, A; Kiss, T; Simonetti, G; Soós, C; Telesca, A; Vande Vyvre, P; Von Haller, B

    2014-01-01

    In this paper we describe the design, the construction, the commissioning and the operation of the Data Acquisition (DAQ) and Experiment Control Systems (ECS) of the ALICE experiment at the CERN Large Hadron Collider (LHC). The DAQ and the ECS are the systems used respectively for the acquisition of all physics data and for the overall control of the experiment. They are two computing systems made of hundreds of PCs and data storage units interconnected via two networks. The collection of experimental data from the detectors is performed by several hundreds of high-speed optical links. We describe in detail the design considerations for these systems handling the extreme data throughput resulting from central lead ions collisions at LHC energy. The implementation of the resulting requirements into hardware (custom optical links and commercial computing equipment), infrastructure (racks, cooling, power distribution, control room), and software led to many innovative solutions which are described together with ...

  5. System for the experimental data acquisition, processing and output on the base of the double-input CAMAC modules

    A system for experimental data acquisition, processing and output developed on the base of the double-input CAMAC module is described. Use of the double-input on-line memory unit at the capacity of up to 64k bite for experimental data storage and an external input controller permitted to obtain the time of the data input and output cycle in the storage equal to 1.6 μs. Rates of experimental data acquisition and output do not depend on the computer response or CAMAC cycle duration. They are determined only by the potentialities of the functional moduls. Combination of operations on data acquisi tion, processing and output is possible. Library of subroutines assuring processing in an on-line system with the SM-4, SM-3, ''Electronika-60'' computers is developed for the system. Subroutiines of this library can be fetched from the code written in the FORTRAN and MLCROASSEMBER and they assure: input/output to/from the computer buffer storage, synchronization of ipput/output operations redout from the buffer storage to the computer storage, recording data from the storage to the huffer storage

  6. Data acquisition system for BESIII MUON gas monitor

    A counting plateau data acquisition system and full energy photo electron peak spectrum data acquisition system were designed based on CAMAC, in order to research the performance of BESIII MUON gas monitor under 55Fe 5.9 KeV X-ray. With data acquisition board PCI-1716L, and adopting LabVIEW and ROOT software, we also designed a data acquisition system, which had long time running stability, accurate data analysis character and less electronic hardware. (authors)

  7. Design of FPGA based high-speed data acquisition and real-time data processing system on J-TEXT tokamak

    Highlights: • It is a data acquisition system for polarimeter–interferometer diagnostic on J-TEXT tokamak based on FPGA and PXIe devices. • The system provides a powerful data acquisition and real-time data processing performance. • Users can implement different data processing applications on the FPGA in a short time. • This system supports EPICS and has been integrated into the J-TEXT CODAC system. - Abstract: Tokamak experiment requires high-speed data acquisition and processing systems. In traditional data acquisition system, the sampling rate, channel numbers and processing speed are limited by bus throughput and CPU speed. This paper presents a data acquisition and processing system based on FPGA. The data can be processed in real-time before it is passed to the CPU. It provides processing ability for more channels with higher sampling rates than the traditional data acquisition system while ensuring deterministic real-time performance. A working prototype is developed for the newly built polarimeter–interferometer diagnostic system on the Joint Texas Experimental Tokamak (J-TEXT). It provides 16 channels with 120 MHz maximum sampling rate and 16 bit resolution. The onboard FPGA is able to calculate the plasma electron density and Faraday rotation angel. A RAID 5 storage device is adopted providing 700 MB/s read–write speed to buffer the data to the hard disk continuously for better performance

  8. BioWatch - a wrist watch based signal acquisition system for physiological signals including blood pressure.

    Thomas, Simi Susan; Nathan, Viswam; Chengzhi Zong; Akinbola, Ebunoluwa; Aroul, Antoine Lourdes Praveen; Philipose, Lijoy; Soundarapandian, Karthikeyan; Xiangrong Shi; Jafari, Roozbeh

    2014-01-01

    A wrist watch based system, which can measure electrocardiogram (ECG) and photoplethysmogram (PPG), is presented in this work. By using both ECG and PPG we also measure pulse transit time (PTT), which studies show to correlate well with blood pressure (BP). The system is also capable of monitoring heart rate using either ECG or PPG and can monitor blood oxygenation by easily replacing the PPG sensors with a different set. In this work, we investigate methods to train a fitting function to convert a PTT measurement to its corresponding systolic BP. We also validate measurements on different postures and show the value of calibrating the device for each posture. This system, called BioWatch, can potentially facilitate continuous and ubiquitous monitoring of ECG, PPG, heart rate, blood oxygenation and BP. PMID:25570444

  9. 基于Labview多数据采集系统设计%Multi-data Acquisition System Based on Labview

    陈茂骁; 焦向东; 朱加雷

    2012-01-01

    在局部干法水下焊接中,排水装置内部的温度、湿度和压力数值及其变化表征着排水过程稳定性和排水效果,对水下焊接稳定性和焊接质量的影响很大.基于Labview8.2和DAQmx8.3软件平台,采用数据采集卡、接线盒和传感检测器件,通过程序设计搭建了气室式局部干法水下焊接数据采集系统,实现了温度、湿度和压力的多数据同步采集和实时显示,经实际排水实验,证明了系统的可靠性.%With the method of local dry underwater welding, the values and the changes of temperature, humidity and pressure in the chamber have great effects on the stableness of the welding and quality of the result, which also indicates the stability of the process and the result of the drainage experiment. Based on Labview 8. 2 and DAQmx 8. 3, the software of National Instruments Corporation, using data acquisition card, connector block and sensors, the data-acquisition system is designed. It can be used for multi-data synchronous acquisition and real-time data display of temperature, humidity and pressure. The dependability of the system is verified by drainage experiments.

  10. MPS data-acquisition software system

    A description of the software for a FASTBUS based data-acquisition system in use at the Brookhaven National Laboratory Multiparticle Spectrometer is presented. Data reading and formating is done by the SLAC scanner processors (SSP's) resident in the FASTBUS system. A multiprocess software system on VAX computers is used to communicate with the SSP's, record the data, and monitor on-line the progress of high energy and heavy ions experiments. The structure and the performance of this system are discussed. (orig.)

  11. Sustaining an Acquisition-based Growth Strategy

    Henningsson, Stefan; Toppenberg, Gustav; Shanks, Graeme

    Value creating acquisitions are a major challenge for many firms. Our case study of Cisco Systems shows that an advanced Enterprise Architecture (EA) capability can contribute to the acquisition process through a) preparing the acquirer to become ‘acquisition ready’, b) identifying resource...... complementarity, c) directing and governing the integration process, and d) post-acquisition evaluation of the achieved integration and proposing ways forward. Using the EA capability in the acquisition process improves Cisco’s ability to rapidly capture value from its acquisitions and to sustain its acquisition...

  12. Electric vehicle data acquisition system

    Svendsen, Mathias; Winther-Jensen, Mads; Pedersen, Anders Bro;

    2014-01-01

    A data acquisition system for electric vehicles is presented. The system connects to the On-board Diagnostic port of newer vehicles, and utilizes the in-vehicle sensor network, as well as auxiliary sensors, to gather data. Data is transmitted continuously to a central database for academic......, by using the On-board Diagnostic port to identify car model and adapt its software accordingly. By utilizing on-board Global Navigation Satellite System, General Packet Radio Service, accelerometer, gyroscope and magnetometer, the system not only provides valuable data for research in the field of electric...

  13. The COMPASS data acquisition system

    Fischer, H; Grünemaier, A; Heinsius, F H; Hoffmann, M; Karstens, F; Kastaun, W; Königsmann, K C; Niebuhr, M; Risken, R; Schmidt, T; Schmitt, H; Schweimler, A; Hodenberg, M V; Urban, H J

    2002-01-01

    A fully pipelined and massively parallel data acquisition system has been developed for the COMPASS experiment at CERN. The main requirements are to read 250000 detector channels at a trigger rate of up to 100 kHz. Such high rates are only possible when using a hit selection mechanism on the front-end combined with dead-time free readout. For this purpose, a time-to-digital converter (TDC) chip has been developed and is used for all time measurement applications in COMPASS. Distributed, field programmable gate array (FPGA)-based readout-driver modules handle parallel front-end initialization, synchronous trigger and control-signal distribution, and local event building at a processing speed of 160 Mbyte/s. Each of the 160 readout-driver modules connects to 16 front-end boards through independent twisted pair cables (CAT 7, 600 MHz) or optical fibers using an industrial (ESCON), self synchronizing link at 40 Mbyte/s. Automatic configuration through unique module and link identification ensures the flexibility ...

  14. Computer-based system for acquisition of nuclear well log data

    There is described a computer-based well logging system, for acquiring nuclear well log data, including gamma ray energy spectrum and neutron population decay rate data, and providing a real-time presentation of the data on an operator's display based on a traversal by a downhole instrument of a prescribed borehole depth interval. The system has a multichannel analyzer including a pulse height analyzer and a memory. After a spectral gamma ray pulse signal coming from a downhole instrument over a logging cable is amplified and conditioned, the pulse height analyzer converts the pulse height into a digital code by peak detection, sample-and-hold action, and analog-to-digital conversion. The digital code defines the address of a memory location or channel, corresponding to a particular gamma ray energy and having a count value to be incremented. The spectrum data is then accessed by the system central processing unit (CPU) for analysis, and routed to the operator's display for presentation as a plot of relative gamma ray emissions activity versus energy level. For acquiring neutron decay rate data, the system has a multichannel scaling unit including a memory and a memory address generator. After a burst of neutrons downhole, thermal and epithermal neutron detector pulses build up and die away. Using the neutron source trigger as an initializing reference, the address generator produces a sequence of memory address codes, each code addressing the memory for a prescribed period of time, so as to define a series of time slots. A detector pulse signal produced during a time slot results in the incrementing of the count value in an address memory location. (author)

  15. Aerial robotic data acquisition system

    A small unmanned aerial vehicle (UAV) equipped with sensors for physical and chemical measurements of remote environments, is described. A miniature helicopter airframe is used as a platform for sensor testing and development. The sensor output is integrated with the flight control system for real-time, interactive, data acquisition and analysis. Pre programmed flight missions will be flown with several sensors to demonstrate the cost-effective surveillance capabilities of this new technology. (author) 10 refs

  16. Aerial robotic data acquisition system

    Hofstetter, K.J.; Hayes, D.W.; Pendergast, M.M. [Westinghouse Savannah River Co., Aiken, SC (United States); Corban, J.E. [Guided Systems Technologies, Atlanta, GA (United States)

    1993-12-31

    A small, unmanned aerial vehicle (UAV), equipped with sensors for physical and chemical measurements of remote environments, is described. A miniature helicopter airframe is used as a platform for sensor testing and development. The sensor output is integrated with the flight control system for real-time, interactive, data acquisition and analysis. Pre-programmed flight missions will be flown with several sensors to demonstrate the cost-effective surveillance capabilities of this new technology.

  17. A new data acquisition and imaging system for nuclear microscopy based on a Field Programmable Gate Array card

    Bettiol, A.A. [Centre for Ion Beam Applications, Department of Physics, National University of Singapore, Blk S7 2 Science Dr. 3, Singapore 117542 (Singapore)], E-mail: phybaa@nus.edu.sg; Udalagama, C.; Watt, F. [Centre for Ion Beam Applications, Department of Physics, National University of Singapore, Blk S7 2 Science Dr. 3, Singapore 117542 (Singapore)

    2009-06-15

    The introduction of the new Field Programmable Gate Array (FPGA) cards by National Instruments has made it possible for the first time to develop reconfigurable custom data acquisition hardware easily with the LabVIEW programming environment. Data acquisition issues such as precise timing for scanning and operating system latencies can now be easily overcome using this new technology because the data acquisition software is embedded in the FPGA chip on the card. In this paper we present the first results of the new data acquisition system developed at the Centre for Ion Beam Applications (CIBA), National University of Singapore using the new National Instruments cards in conjunction with rack mountable Wilkinson type ADCs.

  18. Improvement of PLC-based data acquisition system for beam loss monitors of the J-PARC main ring

    A data acquisition system of the beam loss monitor of J-PARC Main Ring consists of the combination of Programmable Logic Controller (PLC). The system needs the high speed response to an external trigger. So we use high speed data acquisition modules to get output data from the beam loss monitor. Triggered by an external trigger pulse, the system begins to acquire the data with some pre-defined intervals by the signal which the system itself generates. We use the new type of a CPU module of PLC, in which an embedded EPICS system on the Linux OS. With the new type of a CPU module, the data acquisition system becomes simpler. This paper reports the state of development and the result in operation. (author)

  19. Development of the fast BPM data acquisition system using windows oscilloscope-based EPICS IOC

    The KEK Linac is a 600-m-long injector, which provides the beams for the four independent rings (KEKB e-/e+, PF and PF-AR). The non-destructive beam position monitor (BPM) is indispensable diagnostic tool for the long-term stable beam operation. In the KEK Linac, approximately one hundred BPMs with the four strip-line type electrodes are utilized for the beam orbit measurement. The orbit data is used for the orbit and energy feedback loops. Towards the simultaneous top-up injection of KEKB and PF, the Linac has been upgraded for aiming the fast beam-mode switching operation. We developed a new fast BPM DAQ system using a Windows-based digital oscilloscope since the 50 Hz beam position measurement is strongly required for the fast beam-mode switching operation. In this paper, we will present the system description of the new BPM DAQ system and the result of its performance test in detail. (author)

  20. Data Acquisition for Modular Biometric Monitoring System

    Chmiel, Alan J. (Inventor); Humphreys, Bradley T. (Inventor); Grodsinsky, Carlos M. (Inventor)

    2014-01-01

    A modular system for acquiring biometric data includes a plurality of data acquisition modules configured to sample biometric data from at least one respective input channel at a data acquisition rate. A representation of the sampled biometric data is stored in memory of each of the plurality of data acquisition modules. A central control system is in communication with each of the plurality of data acquisition modules through a bus. The central control system is configured to collect data asynchronously, via the bus, from the memory of the plurality of data acquisition modules according to a relative fullness of the memory of the plurality of data acquisition modules.

  1. Embedded Linux platform for data acquisition systems

    Patel, Jigneshkumar J., E-mail: jjp@ipr.res.in [Institute for Plasma Research, Gandhinagar, Gujarat (India); Reddy, Nagaraj, E-mail: nagaraj.reddy@coreel.com [Sandeepani School of Embedded System Design, Bangalore, Karnataka (India); Kumari, Praveena, E-mail: praveena@ipr.res.in [Institute for Plasma Research, Gandhinagar, Gujarat (India); Rajpal, Rachana, E-mail: rachana@ipr.res.in [Institute for Plasma Research, Gandhinagar, Gujarat (India); Pujara, Harshad, E-mail: pujara@ipr.res.in [Institute for Plasma Research, Gandhinagar, Gujarat (India); Jha, R., E-mail: rjha@ipr.res.in [Institute for Plasma Research, Gandhinagar, Gujarat (India); Kalappurakkal, Praveen, E-mail: praveen.k@coreel.com [Sandeepani School of Embedded System Design, Bangalore, Karnataka (India)

    2014-05-15

    Highlights: • The design and the development of data acquisition system on FPGA based reconfigurable hardware platform. • Embedded Linux configuration and compilation for FPGA based systems. • Hardware logic IP core and its Linux device driver development for the external peripheral to interface it with the FPGA based system. - Abstract: This scalable hardware–software system is designed and developed to explore the emerging open standards for data acquisition requirement of Tokamak experiments. To address the future need for a scalable data acquisition and control system for fusion experiments, we have explored the capability of software platform using Open Source Embedded Linux Operating System on a programmable hardware platform such as FPGA. The idea was to identify the platform which can be customizable, flexible and scalable to support the data acquisition system requirements. To do this, we have selected FPGA based reconfigurable and scalable hardware platform to design the system with Embedded Linux based operating system for flexibility in software development and Gigabit Ethernet interface for high speed data transactions. The proposed hardware–software platform using FPGA and Embedded Linux OS offers a single chip solution with processor, peripherals such ADC interface controller, Gigabit Ethernet controller, memory controller amongst other peripherals. The Embedded Linux platform for data acquisition is implemented and tested on a Virtex-5 FXT FPGA ML507 which has PowerPC 440 (PPC440) [2] hard block on FPGA. For this work, we have used the Linux Kernel version 2.6.34 with BSP support for the ML507 platform. It is downloaded from the Xilinx [1] GIT server. Cross-compiler tool chain is created using the Buildroot scripts. The Linux Kernel and Root File System are configured and compiled using the cross-tools to support the hardware platform. The Analog to Digital Converter (ADC) IO module is designed and interfaced with the ML507 through Xilinx

  2. Embedded Linux platform for data acquisition systems

    Highlights: • The design and the development of data acquisition system on FPGA based reconfigurable hardware platform. • Embedded Linux configuration and compilation for FPGA based systems. • Hardware logic IP core and its Linux device driver development for the external peripheral to interface it with the FPGA based system. - Abstract: This scalable hardware–software system is designed and developed to explore the emerging open standards for data acquisition requirement of Tokamak experiments. To address the future need for a scalable data acquisition and control system for fusion experiments, we have explored the capability of software platform using Open Source Embedded Linux Operating System on a programmable hardware platform such as FPGA. The idea was to identify the platform which can be customizable, flexible and scalable to support the data acquisition system requirements. To do this, we have selected FPGA based reconfigurable and scalable hardware platform to design the system with Embedded Linux based operating system for flexibility in software development and Gigabit Ethernet interface for high speed data transactions. The proposed hardware–software platform using FPGA and Embedded Linux OS offers a single chip solution with processor, peripherals such ADC interface controller, Gigabit Ethernet controller, memory controller amongst other peripherals. The Embedded Linux platform for data acquisition is implemented and tested on a Virtex-5 FXT FPGA ML507 which has PowerPC 440 (PPC440) [2] hard block on FPGA. For this work, we have used the Linux Kernel version 2.6.34 with BSP support for the ML507 platform. It is downloaded from the Xilinx [1] GIT server. Cross-compiler tool chain is created using the Buildroot scripts. The Linux Kernel and Root File System are configured and compiled using the cross-tools to support the hardware platform. The Analog to Digital Converter (ADC) IO module is designed and interfaced with the ML507 through Xilinx

  3. Development of a new seismic-data acquisition station based on system-on-a-programmable-chip technology

    Zhang Qi-sheng

    2013-08-01

    Full Text Available There has been considerable development of seismic detectors over the last 80 years. However, there is still a need to further develop new earthquake exploration and data acquisition systems with high precision. In particular, for China to keep up with the latest technology of these systems, it is important to be involved in the research and development, instead of importing systems that soon fall behind the latest technology. In this study, the features of system-on-a-programmable-chip (SoPC technology are analyzed and used to design a new digital seismic-data acquisition station. The hardware circuit of the station was developed, and the analog board and the main control data-transmission board were designed according to the needs of digital seismic-data acquisition stations. High-definition analog-to-digital converter sequential digital filter technology of the station (cascade integrator comb filter, finite impulse response digital filter were incorporated to provide advantages to the acquisition station, such as high definition, large dynamic scope, and low noise. A specific data-transmission protocol was designed for the station, which ensured a transmission speed of 16 Mbps along a 55-m wire with low power consumption. Synchronic acquisition was researched and developed, so as to achieve accuracy better than 200 ns. The key technologies were integrated into the SoPC of the main control data-transmission board, so as to ensure high-resolution acquisition of the station, while improving the accuracy of the synchronic acquisition and data-transmission speed, lowering the power consumption, and preparing for the follow-up efforts to tape out.

  4. The ALICE data acquisition system

    Carena, F.; Carena, W.; Chapeland, S.; Chibante Barroso, V.; Costa, F.; Dénes, E.; Divià, R.; Fuchs, U.; Grigore, A.; Kiss, T.; Simonetti, G.; Soós, C.; Telesca, A.; Vande Vyvre, P.; von Haller, B.

    2014-03-01

    In this paper we describe the design, the construction, the commissioning and the operation of the Data Acquisition (DAQ) and Experiment Control Systems (ECS) of the ALICE experiment at the CERN Large Hadron Collider (LHC). The DAQ and the ECS are the systems used respectively for the acquisition of all physics data and for the overall control of the experiment. They are two computing systems made of hundreds of PCs and data storage units interconnected via two networks. The collection of experimental data from the detectors is performed by several hundreds of high-speed optical links. We describe in detail the design considerations for these systems handling the extreme data throughput resulting from central lead ions collisions at LHC energy. The implementation of the resulting requirements into hardware (custom optical links and commercial computing equipment), infrastructure (racks, cooling, power distribution, control room), and software led to many innovative solutions which are described together with a presentation of all the major components of the systems, as currently realized. We also report on the performance achieved during the first period of data taking (from 2009 to 2013) often exceeding those specified in the DAQ Technical Design Report.

  5. The ALICE data acquisition system

    Carena, F.; Carena, W.; Chapeland, S.; Chibante Barroso, V.; Costa, F. [European Organization for Nuclear Research (CERN), Geneva 23 (Switzerland); Dénes, E. [Research Institute for Particle and Nuclear Physics, Wigner Research Center, Budapest (Hungary); Divià, R.; Fuchs, U. [European Organization for Nuclear Research (CERN), Geneva 23 (Switzerland); Grigore, A. [European Organization for Nuclear Research (CERN), Geneva 23 (Switzerland); Politehnica Univesity of Bucharest, Bucharest (Romania); Kiss, T. [Cerntech Ltd., Budapest (Hungary); Simonetti, G. [Dipartimento Interateneo di Fisica ‘M. Merlin’, Bari (Italy); Soós, C.; Telesca, A.; Vande Vyvre, P. [European Organization for Nuclear Research (CERN), Geneva 23 (Switzerland); Haller, B. von, E-mail: bvonhall@cern.ch [European Organization for Nuclear Research (CERN), Geneva 23 (Switzerland)

    2014-03-21

    In this paper we describe the design, the construction, the commissioning and the operation of the Data Acquisition (DAQ) and Experiment Control Systems (ECS) of the ALICE experiment at the CERN Large Hadron Collider (LHC). The DAQ and the ECS are the systems used respectively for the acquisition of all physics data and for the overall control of the experiment. They are two computing systems made of hundreds of PCs and data storage units interconnected via two networks. The collection of experimental data from the detectors is performed by several hundreds of high-speed optical links. We describe in detail the design considerations for these systems handling the extreme data throughput resulting from central lead ions collisions at LHC energy. The implementation of the resulting requirements into hardware (custom optical links and commercial computing equipment), infrastructure (racks, cooling, power distribution, control room), and software led to many innovative solutions which are described together with a presentation of all the major components of the systems, as currently realized. We also report on the performance achieved during the first period of data taking (from 2009 to 2013) often exceeding those specified in the DAQ Technical Design Report.

  6. New data acquisition system for AMS

    Pfenninger, R. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

    1997-09-01

    A new data acquisition system based on a VME front-end computer, a Sun workstation and a PC has been installed. It is used for the acquisition of mainly AMS data, their graphical display, and storage of the data in a Oracle database. The measurement of magazines of 25 sample each is fully automated. Several data parameters such as transmission are regularly checked. In case of problems the operator is informed by optical and/or acoustical signals. Screens are updated automatically after every measurement cycle. (author) 1 fig.

  7. Accelerator optimization using a network control and acquisition system

    Accelerator optimization requires detailed study of many parameters, indicating the need for remote control and automated data acquisition systems. A control and data acquisition system based on a network of commodity PCs and applications with standards based inter-application communication is being built for the l'OASIS accelerator facility. This system allows synchronous acquisition of data at high (> 1 Hz) rates and remote control of the accelerator at low cost, allowing detailed study of the acceleration process

  8. On Shaft Data Acquisition System (OSDAS)

    Pedings, Marc; DeHart, Shawn; Formby, Jason; Naumann, Charles

    2012-01-01

    On Shaft Data Acquisition System (OSDAS) is a rugged, compact, multiple-channel data acquisition computer system that is designed to record data from instrumentation while operating under extreme rotational centrifugal or gravitational acceleration forces. This system, which was developed for the Heritage Fuel Air Turbine Test (HFATT) program, addresses the problem of recording multiple channels of high-sample-rate data on most any rotating test article by mounting the entire acquisition computer onboard with the turbine test article. With the limited availability of slip ring wires for power and communication, OSDAS utilizes its own resources to provide independent power and amplification for each instrument. Since OSDAS utilizes standard PC technology as well as shared code interfaces with the next-generation, real-time health monitoring system (SPARTAA Scalable Parallel Architecture for Real Time Analysis and Acquisition), this system could be expanded beyond its current capabilities, such as providing advanced health monitoring capabilities for the test article. High-conductor-count slip rings are expensive to purchase and maintain, yet only provide a limited number of conductors for routing instrumentation off the article and to a stationary data acquisition system. In addition to being limited to a small number of instruments, slip rings are prone to wear quickly, and introduce noise and other undesirable characteristics to the signal data. This led to the development of a system capable of recording high-density instrumentation, at high sample rates, on the test article itself, all while under extreme rotational stress. OSDAS is a fully functional PC-based system with 48 channels of 24-bit, high-sample-rate input channels, phase synchronized, with an onboard storage capacity of over 1/2-terabyte of solid-state storage. This recording system takes a novel approach to the problem of recording multiple channels of instrumentation, integrated with the test

  9. The NIFFTE Data Acquisition System

    Qu, Hai; Niffte Collaboration

    2011-10-01

    The Neutron Induced Fission Fragment Tracking Experiment (NIFFTE) will employ a novel, high granularity, pressurized Time Projection Chamber to measure fission cross-sections of the major actinides to high precision over a wide incident neutron energy range. These results will improve nuclear data accuracy and benefit the fuel cycle in the future. The NIFFTE data acquisition system (DAQ) has been designed and implemented on the prototype TPC. Lessons learned from engineering runs have been incorporated into some design changes that are being implemented before the next run cycle. A fully instrumented sextant of EtherDAQ cards (16 sectors, 496 channels) will be used for the next run cycle. The Maximum Integrated Data Acquisition System (MIDAS) has been chosen and customized to configure and run the experiment. It also meets the requirement for remote control and monitoring of the system. The integration of the MIDAS online database with the persistent PostgreSQL database has been implemented for experiment usage. The detailed design and current status of the DAQ system will be presented.

  10. SND data acquisition system upgrade

    The data acquisition (DAQ) system of the SND detector successfully operated during four data-taking seasons (2010–2013) at the e+e− collider VEPP-2000. Currently the collider is shut down for planned reconstruction, which is expected to increase the VEPP-2000 luminosity and data flow from the SND detector electronics by up to 10 times. Since current DAQ system implementation (electronics and computer part) does not have enough reserve for selection of events in the new environment without compromising quality, there arose the need for the system upgrade. Here we report on the major SND data acquisition system upgrade which includes developing new electronics for digitization and data transfer, complete redesign of the data network, increasing of the DAQ computer farm processing capacity and making the event building process concurrent. These measures will allow us to collect data flow from the most congested detector subsystems in parallel in contrast to the current situation. We would like to discuss also the possibility to implement full software trigger solution in the future

  11. CEBAF Distributed Data Acquisition System

    Allison, Trent

    2005-01-01

    There are thousands of signals distributed throughout Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) that are useful for troubleshooting and identifying instabilities. Many of these signals are only available locally or monitored by systems with small bandwidths that cannot identify fast transients. The Distributed Data Acquisition (Dist DAQ) system will sample and record these signals simultaneously at rates up to 40 Msps. Its primary function will be to provide waveform records from signals throughout CEBAF to the Experimental Physics and Industrial Control System (EPICS). The waveforms will be collected after the occurrence of an event trigger. These triggers will be derived from signals such as periodic timers or accelerator faults. The waveform data can then be processed to quickly identify beam transport issues, thus reducing down time and increasing CEBAF performance. The Dist DAQ system will be comprised of multiple standalone chassis distributed throughout CEBAF. They will be i...

  12. Development of a new seismic-data acquisition station based on system-on-a-programmable-chip technology

    Zhang Qi-sheng; Deng Ming; Guo Jian; Luo Wei-bing; Wang Qi; Feng Yong-qiang

    2013-01-01

    There has been considerable development of seismic detectors over the last 80 years. However, there is still a need to further develop new earthquake exploration and data acquisition systems with high precision. In particular, for China to keep up with the latest technology of these systems, it is important to be involved in the research and development, instead of importing systems that soon fall behind the latest technology. In this study, the features of system-on-a-programmable-chip (SoPC...

  13. PEP-14 data acquisition system

    A real-time software system was developed for the VAX 11/780 which employs ten processes cooperating concurrently in the task of data acquisition and on-line analysis for the Free Quark Search experiment at the new colliding beam storage ring facility (PEP) located at the Stanford Linear Accelerator Center. The system utilizes most of the resources available to the applications programer under VAX 11/780 VMS, including interprocess communication via mailbox, global event flag cluster, and mapped global section, and is written primarily in FORTRAN IV PLUS with time-critical portions in MACRO-11. A discussion of the system architecture, implementation, and performance is given. 6 figures, 1 table

  14. A progress report of the switch-based data acquisition system prototype project and the application of switches from industry to high-energy physics event building

    A prototype of a data acquisition system based on a new scalable, highly-parallel, open-system architecture is being developed at Fermilab. The major component of the new architecture, the parallel event builder, is based on a telecommunications industry technique used in the implementation of switching systems, a barrel-shift switch. The architecture is scalable both in the expandability of the number of input channels and in the throughput of the system. Because of its scalability, the system is well suited for low to high-rate experiments, test beams and all SSC detectors. The architecture is open in that as new technologies are developed and made into commercial products (e.g., arrays of processors and workstations and standard data links), these new products can be easily integrated into the system with minimal system modifications and no modifications to the system's basic architecture. Scalability and openness should guarantee that the data acquisition system does not become obsolete during the lifetime of the experiment. The paper first gives a description of the architecture and the prototype project and then details both the prototype project's software and hardware status including details of some architecture simulation studies. Suggestions for future R and D work on the new data acquisition system architecture are then described. The paper concludes by examining interconnection networks from industry and their application to event building and to other areas of high-energy physics data acquisition systems

  15. A CDU-based data acquisition system for the energy spectrometer at the Stanford Linear Collider

    We describe a system using the Calorimetry Data Unit (a 32-channel multisample analog integrated circuit) to read out the charge ejected by secondary emission of a synchrotron beam from wires lying in its path. The wires comprise the Wire-Imaging Synchrotron Radiation Detector (WISRD) in the SLC Extraction-Line Spectrometer. The primary module in the system is a board containing 24 channels of charge sensitive amplification, shaping, sampling, multiplexing and digitization. This board also provides a fast analog measure of the charge distribution across the wires. We discuss the design and performance of this system. 4 refs., 5 figs

  16. A GIS based system for minimizing acquisition risk in Real Estate property market

    Michele Argiolas

    2013-01-01

    Many economists have identified the main cause of recent global real estate market crisis both in the poor diffusion of systems capable of monitoring the historical property values that in the lack of public awareness about the risks of real estate investments. This paper proposes a new approach to evaluate property acquisition’s risk that does not rely on a standardize appraisal indices analysis. The proposed Geographical Information System is able to investigate the historical variation of ...

  17. Broadband network on-line data acquisition system with web based interface for control and basic analysis

    Polkowski, Marcin; Grad, Marek

    2016-04-01

    Passive seismic experiment "13BB Star" is operated since mid 2013 in northern Poland and consists of 13 broadband seismic stations. One of the elements of this experiment is dedicated on-line data acquisition system comprised of both client (station) side and server side modules with web based interface that allows monitoring of network status and provides tools for preliminary data analysis. Station side is controlled by ARM Linux board that is programmed to maintain 3G/EDGE internet connection, receive data from digitizer, send data do central server among with additional auxiliary parameters like temperatures, voltages and electric current measurements. Station side is controlled by set of easy to install PHP scripts. Data is transmitted securely over SSH protocol to central server. Central server is a dedicated Linux based machine. Its duty is receiving and processing all data from all stations including auxiliary parameters. Server side software is written in PHP and Python. Additionally, it allows remote station configuration and provides web based interface for user friendly interaction. All collected data can be displayed for each day and station. It also allows manual creation of event oriented plots with different filtering abilities and provides numerous status and statistic information. Our solution is very flexible and easy to modify. In this presentation we would like to share our solution and experience. National Science Centre Poland provided financial support for this work via NCN grant DEC-2011/02/A/ST10/00284.

  18. The CDMS II Data Acquisition System

    Bauer, D. A.; Burke, S.; Cooley, J.; Crisler, M.; Cushman, P.; DeJongh, F.; Duong, L.; Ferril, R.; Golwala, S. R.; Hall, J.; Holmgren, D.; Mahapatra, R.; Nelson, H.; Reisetter, A.; Sander, J.; Savage, C.

    2011-05-01

    The Data Acquisition System for the CDMS II dark matter experiment was designed and built when the experiment moved to its new underground installation at the Soudan Lab. The combination of remote operation and increased data load necessitated a completely new design. Elements of the original LabView system remained as stand-alone diagnostic programs, but the main data processing moved to a VME-based system with custom electronics for signal conditioning, trigger formation and buffering. The data rate was increased 100-fold and the automated cryogenic system was linked to the data acquisition. A modular server framework with associated user interfaces was implemented in Java to allow control and monitoring of the entire experiment remotely.

  19. The CDMS II data acquisition system

    Bauer, D.A.; /Fermilab; Burke, S.; /UC, Santa Barbara; Cooley, J.; /Southern Methodist U.; Crisler, M.; /Fermilab; Cushman, P.; /Minnesota U.; DeJongh, F.; /Fermilab; Duong, L.; /Minnesota U.; Ferril, R.; /UC, Santa Barbara; Golwala, S.R.; /Caltech; Hall, J.; /Fermilab; Holmgren, D.; /Fermilab /Texas A-M

    2011-01-01

    The Data Acquisition System for the CDMS II dark matter experiment was designed and built when the experiment moved to its new underground installation at the Soudan Lab. The combination of remote operation and increased data load necessitated a completely new design. Elements of the original LabView system remained as stand-alone diagnostic programs, but the main data processing moved to a VME-based system with custom electronics for signal conditioning, trigger formation and buffering. The data rate was increased 100-fold and the automated cryogenic system was linked to the data acquisition. A modular server framework with associated user interfaces was implemented in Java to allow control and monitoring of the entire experiment remotely.

  20. Data acquisition and test system software

    Bourgeois, N.A. Jr.

    1979-03-01

    Sandia Laboratories has been assigned the task by the Base and Installation Security Systems (BISS) Program Office to develop various aspects of perimeter security systems. One part of this effort involves the development of advanced signal processing techniques to reduce the false and nuisance alarms from sensor systems while improving the probability of intrusion detection. The need existed for both data acquisition hardware and software. Also, the hardware is used to implement and test the signal processing algorithms in real time. The hardware developed for this signal processing task is the Data Acquisition and Test System (DATS). The programs developed for use on DATS are described. The descriptions are taken directly from the documentation included within the source programs themselves.

  1. OPSO - The OpenGL based Field Acquisition and Telescope Guiding System

    Škoda, Petr; Fuchs, J.; Honsa, Jaroslav

    San Francisco: Astronomical Society of the Pacific, 2006 - (Gabriel, C.), s. 185. (ASP Conference Series. 351). ISBN 1-58381-219-9. [Astronomical data analysis software and systems /15./. San Lorenzo de El Escorial (ES), 02.10.2005-05.10.2005] R&D Projects: GA ČR(CZ) GA205/03/0788 Institutional research plan: CEZ:AV0Z10030501 Keywords : auto-guiding system * spectrograph of the Ondřejov observatory Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

  2. A GIS based system for minimizing acquisition risk in Real Estate property market

    Michele Argiolas

    2013-08-01

    Full Text Available Many economists have identified the main cause of recent global real estate market crisis both in the poor diffusion of systems capable of monitoring the historical property values that in the lack of public awareness about the risks of real estate investments. This paper proposes a new approach to evaluate property acquisition’s risk that does not rely on a standardize appraisal indices analysis. The proposed Geographical Information System is able to investigate the historical variation of the main real estate market indicators and to let the final user appraise the general level of real estate investment risk. The subsequent sections of this paper will discuss about the real strength of the most common literature’s algorithms used to appraise risk in real estate, then it will be explained how inexpensive information technology applications can help to increase the diffusion of awareness related to real estate market conditions. Finally it will be discussed the case of study; conclusions and some considerations about future improvements will close the study.

  3. Development of Precision-Agriculture Data Acquisition System and Xilinx ChipScope Pro Logic Analyzer based Monitoring

    S.R. Patil 1

    2015-09-01

    Full Text Available The research paper focuses on the development of a data acquisition system for precision-agriculture by sensing physical parameters; associated with the farm-soil. It requires different modules to be deployed in a system to perform data acquisition process over multiple parameters. However, the prototype developed in this research work deals with an embedded system comprising the less chip-count and consequently reduce overall power utilization. The analogue multiplexer routes electrical signals produced by farm-parameter sensors. Such signals were transformed into their digital equivalents by means of a 12-bit serial Analogue to Digital Converter (ADC; which was driven by the Xilinx Field Programmable Gate Array (FPGA. The research work deals with a standardized real-time hardware-signal monitoring system using the Xilinx ChipScope Pro Logic Analyzer.

  4. Fast Access Data Acquisition System (FADAS)

    Our goal in this program is to develop Fast Access Data Acquisition System (FADAS) by combining the flexibility of Multilink's GaAs and InP electronics and electro-optics with an extremely high data rate for the efficient handling and transfer of collider experimental data. This novel solution is based on Multilink's and Los Alamos National Laboratory's (LANL) unique components and technologies for extremely fast data transfer, storage, and processing

  5. The ngdp framework for data acquisition systems

    The ngdp framework is intended to provide a base for the data acquisition (DAQ) system software. The ngdp's design key features are: high modularity and scalability; usage of the kernel context (particularly kernel threads) of the operating systems (OS), which allows one to avoid preemptive scheduling and unnecessary memory-to-memory copying between contexts; elimination of intermediate data storages on the media slower than the operating memory like hard disks, etc. The ngdp, having the above properties, is suitable to organize and manage data transportation and processing for needs of essentially distributed DAQ systems

  6. HERA-B data acquisition system

    The HERA-B Data Acquisition System implements a 50 kHz dead-timeless readout of 500 kB events requiring unprecedented speed of storing and data processing. The system is based on Digital Signal Processors (DSP) minimizing the number of components. A high bandwidth, low-latency DSP switching network provides full connectivity between the readout buffers and a PC farm which runs the higher level trigger. The design of the system and the achieved performance are described in this paper

  7. HERA-B data acquisition system

    Dam, M.; Egorytchev, V.; Essenov, S.; Gellrich, A.; Hansen, J.D.; Hansen, J.R.; Hernandez, J.M.; Medinnis, M. E-mail: medinnis@mail.desy.de; Rensch, B.; Ressing, D.; Rybnikov, V.; Sanchez, F.; Schwingenheuer, B.; Wagner, G.; Wurth, R.; Zhelezov, A.; Zweizig, J

    2004-06-11

    The HERA-B Data Acquisition System implements a 50 kHz dead-timeless readout of 500 kB events requiring unprecedented speed of storing and data processing. The system is based on Digital Signal Processors (DSP) minimizing the number of components. A high bandwidth, low-latency DSP switching network provides full connectivity between the readout buffers and a PC farm which runs the higher level trigger. The design of the system and the achieved performance are described in this paper.

  8. CLIC-ACM: generic modular rad-hard data acquisition system based on CERN GBT versatile link

    CLIC is a world-wide collaboration to study the next ''terascale'' lepton collider, relying upon a very innovative concept of two-beam-acceleration. This accelerator, currently under study, will be composed of the subsequence of 21000 two-beam-modules. Each module requires more than 300 analogue and digital signals which need to be acquired and controlled in a synchronous way. CLIC-ACM (Acquisition and Control Module) is the 'generic' control and acquisition module developed to accommodate the controls of all these signals for various sub-systems and related specification in term of data bandwidth, triggering and timing synchronization. This paper describes the system architecture with respect to its radiation-tolerance, power consumption and scalability

  9. FPGA-based time to digital converter and data acquisition system for high energy tagger of KLOE-2 experiment

    Iafolla, L., E-mail: lorenzo.iafolla@lnf.infn.it [INFN-LNF, Frascati, Rome (Italy); Università di Roma Tor Vergata, Rome (Italy); Balla, A.; Beretta, M.; Ciambrone, P.; Gatta, M.; Gonnella, F. [INFN-LNF, Frascati, Rome (Italy); Mascolo, M.; Messi, R. [Università di Roma Tor Vergata, Rome (Italy); INFN-Sezione Roma 2, Rome (Italy); Moricciani, D. [INFN-Sezione Roma 2, Rome (Italy); Riondino, D. [INFN-LNF, Frascati, Rome (Italy)

    2013-08-01

    In order to reconstruct γγ physics events tagged with High Energy Tagger (HET) in the KLOE-2 (K LOng Experiment 2), we need to measure the Time Of Flight (TOF) of the electrons and positrons from the KLOE-2 Interaction Point (IP) to our tagging stations (11 m apart). The required resolution must be better than the bunch spacing (2.7 ns). We have developed and implemented on a Xilinx Virtex-5 FPGA a Time to Digital Converter (TDC) with 625 ps resolution (LSB) along with an embedded data acquisition system and the interface to the online FARM of KLOE-2. We will describe briefly the architecture of the TDC and of the Data AcQuisition (DAQ) system. Some more details will be provided about the zero-suppression algorithm used to reduce the data throughput.

  10. FPGA-based Time to Digital Converter and Data Acquisition system for High Energy Tagger of KLOE-2 experiment

    Iafolla, L; Beretta, M; Ciambrone, P; Gatta, M; Gonnella, F; Mascolo, M; Messi, R; Moricciani, D; Riondino, D

    2012-01-01

    In order to reconstruct gamma-gamma physics events tagged with High Energy Tagger (HET) in the KLOE-2 (K LOng Experiment 2), we need to measure the Time Of Flight (TOF) of the electrons and positrons from the KLOE-2 Interaction Point (IP) to our tagging stations (11 m apart). The required resolution must be better than the bunch spacing (2.7 ns). We have developed and implemented on a Xilinx Virtex-5 FPGA a Time to Digital Converter (TDC) with 625 ps resolution (LSB) along with an embedded data acquisition system and the interface to the online FARM of KLOE-2. We will describe briefly the architecture of the TDC and of the Data AcQuisition (DAQ) system. Some more details will be provided about the zero-suppression algorithm used to reduce the data throughput.

  11. Case Base Mining for Adaptation Knowledge Acquisition

    D'Aquin, Mathieu; Lafrogne, Sandrine; Lieber, Jean; Napoli, Amedeo; Szathmary, Laszlo

    2007-01-01

    In case-based reasoning, the adaptation of a source case in order to solve the target problem is at the same time crucial and difficult to implement. The reason for this difficulty is that, in general, adaptation strongly depends on domain-dependent knowledge. This fact motivates research on adaptation knowledge acquisition (AKA). This paper presents an approach to AKA based on the principles and techniques of knowledge discovery from databases and data-mining. It is implemented in CABAMAKA, a system that explores the variations within the case base to elicit adaptation knowledge. This system has been successfully tested in an application of case-based reasoning to decision support in the domain of breast cancer treatment.

  12. The BaBar Data Acquisition System

    Scott, I; Grosso, P; Huffer, M E; O'Grady, C; Russell, J J

    1999-01-01

    The BaBar experiment at the Stanford Linear Accelerator Center is designed to perform a search for CP violation by ana-lyzing the decays of a very large sample of B and B(Bar) mesons produced at the high luminosity PEP-II accelerator. The data acquisition system must cope with a sustained high event rate, while supporting real time feature extraction and data compression with minimal dead time. The BaBar data acquisition system is based around a common VME interface to the electronics read-out of the separate detec-tor subsystems. Data from the front end electronics is read into commercial VME processors via a custom "Personality Card" and PCI interface. The commercial CPUs run the Tornado operating system to provide a platform for detector subsystem code to perform the necessary data processing. The data is read out via a non-blocking network switch to a farm of commercial UNIX processors. The current implementation of the BaBar data acquisition sys-tem has been shown to sustain a Level 1 trigger rate of 1.3...

  13. Data Acquisition System On Beta Installation

    Data acquisition system is needed on every installation. This is important used to monitoring and processing data to get information desired. This system applied to β installation which is facility to carry out experiments on accident condition like as reflooding phenomena in test section. The 16 exp.th channel data acquisition system is drived by ADC 0804 and programme application DELPHI

  14. Data Acquisition System for RPC Testing

    Ahmed, Ijaz; Ansari, Muhammad Hamid; Asghar, Muhammad Irfan; Asghar, Sajjad; Awan, Irfan Ullah; Butt, Jamila; Hoorani, Hafeez R; Khurshid, Ishtiaq Hussain Taimoor; Muhammad, Saleh; Shahzad, Hassan; Aftab, Zia; Iftikhar, Mian; Khan, Mohammad Khalid; Saleh, M

    2008-01-01

    The Data Acquisition (DAQ) System of the Compact Muon Solenoid (CMS) RPC test station was built in National Centre for Physics (NCP) during the year 2004-2005 with joint efforts by NCP and PAEC groups. The system is based on the NIM, VME and CAMAC technologies which allowed users to test 10 RPCs simultaneously. With the help of our facility more than 300 RPCs were tested and finally shipped to CERN. This note describes different components of the DAQ in detail and presents a few results from the online DAQ.

  15. Jefferson Lab Data Acquisition Run Control System

    A general overview of the Jefferson Lab data acquisition run control system is presented. This run control system is designed to operate the configuration, control, and monitoring of all Jefferson Lab experiments. It controls data-taking activities by coordinating the operation of DAQ sub-systems, online software components and third-party software such as external slow control systems. The main, unique feature which sets this system apart from conventional systems is its incorporation of intelligent agent concepts. Intelligent agents are autonomous programs which interact with each other through certain protocols on a peer-to-peer level. In this case, the protocols and standards used come from the domain-independent Foundation for Intelligent Physical Agents (FIPA), and the implementation used is the Java Agent Development Framework (JADE). A lightweight, XML/RDF-based language was developed to standardize the description of the run control system for configuration purposes

  16. The DECam data acquisition and control system

    Honscheid, K.; Eiting, J.; Elliott, A.; Annis, J.; Bonati, M.; Buckley-Geer, E.; Castander, F.; da Costa, L.; Haney, M.; Hanlon, W.; Karliner, I.; Kuehn, K.; Kuhlmann, S.; Marshall, S.; Meyer, M.; Neilsen, E.; Ogando, R.; Roodman, A.; Schalk, T.; Schumacher, G.; Selen, M.; Serrano, S.; Thaler, J.; Wester, W.

    2010-07-01

    In this paper we describe the data acquisition and control system of the Dark Energy Camera (DECam), which will be the primary instrument used in the Dark Energy Survey (DES). DES is a high precision multibandpath wide area survey of 5000 square degrees of the southern sky. DECam currently under construction at Fermilab will be a 3 square degree mosaic camera mounted at the prime focus of the Blanco 4m telescope at the Cerro-Tololo International Observatory (CTIO). The DECam data acquisition system (SISPI) is implemented as a distributed multi-processor system with a software architecture built on the Client-Server and Publish-Subscribe design patterns. The underlying message passing protocol is based on PYRO, a powerful distributed object technology system written entirely in Python. A distributed shared variable system was added to support exchange of telemetry data and other information between different components of the system. In this paper we discuss the SISPI infrastructure software, the image pipeline, the observer interface and quality monitoring system, and the instrument control system.

  17. Distributed radiation data acquisition system for KAPP

    Increased concern for the safety of personnel working in Nuclear Power Stations demands an efficient centralized Radiation Data Acquisition System (RADAS) to monitor different types of radiation at distributed locations of the plant. The system provides a comprehensive picture of radio-activity level distribution in the reactor building to facilitate prompt and correct decision making to take care of any emergency situation. The system is build around an industrial IBM-PC connected to remote intelligent data acquisition units using serial data communication links. To ensure high system availability and ease of maintenance the mechanical moving disk storage has been replaced by solid state memory storage (RAM Disk). Functional CRT displays have been substituted by the assembly of IBM-PC Mother Board with built-in firmware and standard TV Monitor. The computer handles a variety of processing functions which include the conversion to engineering units, checking of alarms, display/printing of plant radiation level status and system diagnostics. Intelligent terminals have been provided with graphic and text formatting capabilities. A hot standby computer connected to analog and digital inputs takes over the system functions on the failure of the host system. Modular software written in the higher level C-language runs under a standard real-time operating system Kernel. This provides for easy modification and expandability at site. Based on the experience of its commissioning at Kakrapar Power Station a new compact version is being designed for a specific application in another class of reactor. (author). 3 refs., 1 fig

  18. Knowledge acquisition for autonomous systems

    Lum, Henry; Heer, Ewald

    1988-01-01

    Knowledge-based capabilities for autonomous aerospace systems, such as the NASA Space Station, must encompass conflict-resolution functions comparable to those of human operators, with all elements of the system working toward system goals in a concurrent, asynchronous-but-coordinated fashion. Knowledge extracted from a design database will support robotic systems by furnishing geometric, structural, and causal descriptions required for repair, disassembly, and assembly. The factual knowledge for these databases will be obtained from a master database through a technical management information system, and it will in many cases have to be augmented by domain-specific heuristic knowledge acquired from domain experts.

  19. Acquisition of Capabilities Through Systems-of-Systems: Case Studies and Lessons from Naval Aviation

    Michael Pryce

    2009-01-01

    The acquisition community in many nations faces novel challenges with the transition to systems-of-systems, capabilities-based solutions to meet military requirements. Much of the ''tribal knowledge'' and experience of those in acquisition, both in industry and government, has stemmed from platform-centered development strategies. It is questionable to what extent lessons from these can be applied to systems-of-systems acquisition. How does the acquisition expert trade off platform capabiliti...

  20. Study of customer acquisition support system for mobile operators

    2007-01-01

    The mobile operators are struggling for improving the market share and the revenues.One important method is to acquire the potential customers from the competitors.This article presents a whole acquisition process and an integrated framework for customer acquisition support system (CASS).The core of the system is the customer acquisition identification models which are built based on data mining technologies.The CASS can automate the acquisition process and decrease the cost and implement precise marketing strategy for mobile operators.

  1. Operation and maintenance manual for data acquisition system of MIDAS

    Lee, D. Y.; Park, W. M.; Kim, J. T.; Euh, D. J

    2001-09-01

    This report describes an operation and maintenance manual of the data acquisition system and the data processing system for the DVI performance evaluation facility, MIDAS. The data acquisition system is implemented with VXI based system of Kinetic Systems{sup TM}, and the data processing PC. This report presents the configuration method and operation procedure for the operator. The modification procedure and method for functional extension and performance modification are also included for the future demand.

  2. The Debugging and Development of KODAQ Data Acquisition System

    2001-01-01

    KODAQ (Kakuken on-line data acquisition system) data acquisition system was introduced from Japan on Dec., 2000. It is a multi-parameter DAQ system with the advantage of simplestructure, convenient use, stable running and cheap price. At present, lots of institute and university are using the system in Japan.KODAQ system follows the CAMAC standard, is based on PC and CAMAC crate controller,

  3. The RD13 data acquisition system

    The RD13 project was originally approved in April 1991 for the study of an LHC oriented data taking system and is now nearing the completion of its third phase of activities. The guiding objectives of the project include the construction of a scalable DAQ framework capable of evolving with detector requirements, the use of a Real-Time UNIX operating system with multiprocessor support, the evaluation and use of commercial products for all aspects of software production and a software engineering approach to software design and implementation. Special attention is also given to the modelling and simulation of full architecture solutions and their demonstration via small scale setups based on different technologies. To assess the viability of RD13 a fully operational data acquisition system fulfilling the initial requirements and based on the selected components has been successfully used as a data taking system of LHC detector prototypes that present interesting and challenging readout problems

  4. ZigBee心电信号采集系统%Design of ECG Acquisition System Based on Zigbee

    宋立新; 姜思刚; 周蕾; 李鸿锦; 赵亮

    2012-01-01

    In order to solve the problem of detecting ECG in a form of online, dynamic and wireless, we designed a new type of ECG acquisition system using ZigBee wireless technology. In the system, Sunplus SPCE061 16bit MCU was used as the ECG acquisitions core control components, and the UBEC UZ2400 served for the Zig-bee communication between acquisition node and monitor node. Meanwhile, in order to improve the on line monitoring transmission rate, we designed a simple ECG data compression algorithm, and an ECG monitoring interface of the center monitoring node by means of VC ++ . This system could realize multi-node' s dynamic monitoring and could draw ECG and date analysis on the ECG interface.%针对心电信号在线、动态和无线监测问题,采用ZigBee无线传输技术,设计了一种新型的心电信号采集系统.该系统以凌阳SPCE061十六位微处理器作为系统的核心采集控制器件,以UBEC公司的UZ2400射频芯片实现采集节点与监控节点间的ZigBee通信,同时为了提高多节点在线监测传输速率,设计了简单的心电数据压缩算法,利用VC++设计了中心监控节点的心电监测界面,整个系统可实现多节点的动态监测,并且能够在监测界面上进行心电波形的绘制及其数据分析.

  5. Easy-handling spectrum-management on-line system MMCU for the μ-VAX based data acquisition system in the SF cyclotron facility

    An easy-handling spectrum-management system for both on-line and off-line analysis has been developed. This system 'Man Machine Communication Utility (MMCU)' is aimed to unify the data acquisition system of INS, CYRIC (Tohoku Univ.) and RIKEN. This system has been successfully tested in a nuclear astrophysical experiment at INS. (author)

  6. Data Acquisition System of FlashADC on GTAF Facility

    ZHANG; Qi-wei; HE; Guo-zhu; HUANG; Xing; RUAN; Xi-chao; ZHOU; Zu-ying; ZHU; Xing-hua

    2013-01-01

    The data acquisition system of GTAF facility bases on the digitizer of FlashADC(DC271A,made by Acqiris Technologies Inc.),which can achieve the acquisition of experimental data and real-time monitoring of on-line measure by the capture of digital full pulse waveform from 40 BaF2 detectors.Fig.1

  7. LHC beam instrumentation detectors and acquisition systems

    An overview of some of the detectors and acquisition systems being developed for measuring and controlling beam parameters in the LHC. The two largest systems concern the measurement of beam position, with over 1000 monitors, and beam loss, with over 3000 monitors. For the beam position system a novel wide band time normaliser has been developed to allow bunch-by-bunch 40MHz acquisitions with a dynamic range greater than 30dB and an overall linearity of better than 1%. Also mentioned will be the acquisition system for the fast beam current transformers and the development of CdTe detectors for luminosity monitoring. [author

  8. COMPASS CONTROL, DATA ACQUISITION, AND COMMUNICATION SYSTEM

    Hron, Martin; Písačka, Jan; Fernandes, H.; Sousa, J.; Neto, A.

    Inuyama, 2007. [IAEA Technical Meeting on Control , Data Acquisition, and Remote Participation for Fusion Research/6th./. 4.6.2007-8.6.2007, Inuyama] Institutional research plan: CEZ:AV0Z20430508 Keywords : tokamak * communication system * data acquisition Subject RIV: JC - Computer Hardware ; Software http://tm2007.nifs.ac.jp/

  9. Data Acquisition and Real-Time Systems.

    Lawrence, D. E., Ed.; Fenwick, P. M., Ed.

    The first group of papers starts with a tutorial paper which surveys the methods used in data acquisition systems. Other papers in this group describe: (1) some problems involved in the computer acquisition of high-speed randomly-occurring data and the protection of this data from accidental corruption, (2) an input/output bus to allow an IBM…

  10. SSC/BCD data acquisition system proposal

    Barsotti, E.; Bowden, M.; Swoboda, C. [Fermilab, Batavia, IL (United States)

    1989-04-01

    The proposed new data acquisition system architecture takes event fragments off a detector over fiber optics and to a parallel event building switch. The parallel event building switch concept, taken from the telephone communications industry, along with expected technology improvements in fiber-optic data transmission speeds over the next few years, should allow data acquisition system rates to increase dramatically and exceed those rates needed for the SSC. This report briefly describes the switch architecture and fiber optics for a SSC data acquisition system.

  11. Thermal (Silicon Diode) Data Acquisition Systems

    Wright, Ernest; Kegley, Jeff

    2008-01-01

    Marshall Space Flight Center s X-ray Cryogenic Facility (XRCF) has been performing cryogenic testing to 20 Kelvin since 1999. Two configurations for acquiring data from silicon diode temperature sensors have been implemented at the facility. The facility's environment is recorded via a data acquisition system capable of reading up to 60 silicon diodes. Test article temperature is recorded by a second data acquisition system capable of reading 150+ silicon diodes. The specifications and architecture of both systems will be presented.

  12. Thermal (Silicon Diode) Data Acquisition System

    Kegley, Jeffrey

    2008-01-01

    Marshall Space Flight Center's X-ray Calibration Facility (XRCF) has been performing cryogenic testing to 20 Kelvin since 1999. Two configurations for acquiring data from silicon diode temperature sensors have been implemented at the facility. The facility's environment is recorded via a data acquisition system capable of reading up to 60 silicon diodes. Test article temperature is recorded by a second data acquisition system capable of reading 150+ silicon diodes. The specifications and architecture of both systems will be presented.

  13. Data acquisition for sensor systems

    Taylor, H Rosemary

    1997-01-01

    'Data acquisition' is concerned with taking one or more analogue signals and converting them to digital form with sufficient accu­ racy and speed to be ready for processing by a computer. The increasing use of computers makes this an expanding field, and it is important that the conversion process is done correctly because information lost at this stage can never be regained, no matter how good the computation. The old saying - garbage in, garbage out - is very relevant to data acquisition, and so every part of the book contains a discussion of errors: where do they come from, how large are they, and what can be done to reduce them? The book aims to treat the data acquisition process in depth with less detailed chapters on the fundamental principles of measure­ ment, sensors and signal conditioning. There is also a chapter on software packages, which are becoming increasingly popular. This is such a rapidly changing topic that any review of available pro­ grams is bound to be out of date before the book re...

  14. Critiquing Human Judgment Using Knowledge-Acquisition Systems

    Silverman, Barry G.

    1990-01-01

    Automated knowledge-acquisition systems have focused on embedding a cognitive model of a key knowledge worker in their software that allows the system to acquire a knowledge base by interviewing domain experts just as the knowledge worker would. Two sets of research questions arise: (1) What theories, strategies, and approaches will let the modeling process be facilitated; accelerated; and, possibly, automated? If automated knowledge-acquisition systems reduce the bottleneck associated with a...

  15. UA1 data-acquisition system

    The data-acquisition system of the UA1 experiment running at the CERN p anti p collider is described. The front-end electronics generates 1.6 Mbytes of raw data for each event. Parallel data-stream processors reduce the typical event data to 60,000 bytes in a time of less than 10 ms. Data are read out by Remus CAMAC branches, formated data streams being read in parallel by buffer units with multi-event storage capability. For test and monitoring, the data flow can be accessed by local processors associated with each detector subsystem. Alternatively, the over-all system can be partitioned off in a set of independent subsystems running their own data acquisition with or without a synchronous trigger. On-line functions are assured by a number of multi-task and dedicated-task 16-bit and 32-bit computers. A variety of microprocessor-based systems with autonomous capabilities control the experimental apparatus

  16. The DISTO data acquisition system at SATURNE

    The DISTO collaboration has built a large-acceptance magnetic spectrometer designed to provide broad kinematic coverage of multiparticle final states produced in pp scattering. The spectrometer has been installed in the polarized proton beam of the Saturne accelerator in Saclay to study polarization observables in the rvec pp → pK+rvec Y (Y = Λ, Σ0 or Y*) reaction and vector meson production (ψ, ω and ρ) in pp collisions. The data acquisition system is based on a VME 68030 CPU running the OS/9 operating system, housed in a single VME crate together with the CAMAC interface, the triple port ECL memories, and four RISC R3000 CPU. The digitization of signals from the detectors is made by PCOS III and FERA front-end electronics. Data of several events belonging to a single Saturne extraction are stored in VME triple-port ECL memories using a hardwired fast sequencer. The buffer, optionally filtered by the RISC R3000 CPU, is recorded on a DLT cassette by DAQ CPU using the on-board SCSI interface during the acceleration cycle. Two UNIX workstations are connected to the VME CPUs through a fast parallel bus and the Local Area Network. They analyze a subset of events for on-line monitoring. The data acquisition system is able to read and record 3,500 ev/burst in the present configuration with a dead time of 15%

  17. Aircraft Nodal Data Acquisition System (ANDAS) Project

    National Aeronautics and Space Administration — Development of an Aircraft Nodal Data Acquisition System (ANDAS) is proposed. The proposed methodology employs the development of a very thin (135m) hybrid...

  18. A prototype switched Ethernet data acquisition system

    A prototype switched Ethernet data acquisition system has been built up and successfully operated in HL-1M tokamak experiments. The system is based on a switched high bandwidth Ethernet network with which the CAMAC crates are directly interfaced. It takes the advanced features of LAN switch and Ethernet CAMAC controller (ECC 1365 MK III, HYTEC product) to avoid the rewriting of CAMAC driver for an individual computer system and to ensure high data transmission rate between CAMAC system and host computers on the network. It is a new approach to DAS system architecture and provides a solution for a well-known bottleneck problem in traditional distributed DAS system for fusion research. An average throughput of the test system reaches over 100 Mbps. The system features also an easy and low cost migration from traditional distributed DAS system. In the paper, the hardware configuration, software structure, performance of the system and the method of migrating from current DAS system are discussed in detail. (orig.)

  19. A Data Acquisition System for Medical Imaging

    A data acquisition system for medical imaging applications is presented. Developed at CPPM, it provides high performance generic data acquisition and processing capabilities. The DAQ system is based on the PICMG xTCA standard and is composed of 1 up to 10 cards in a single rack, each one with 2 Altera Stratix IV FPGAs and a Fast Mezzanine Connector (FMC). Several mezzanines have been produced, each one with different functionalities. Some examples are: a mezzanine capable of receiving 36 optical fibres with up to 180 Gbps sustained data rates or a mezzanine with 12 x 5 Gbps input links, 12 x 5 Gbps output links and an SFP+ connector for control purposes. Several rack sizes are also available, thus making the system scalable from a one card desktop system useful for development purpose up to a full featured rack mounted DAQ for high end applications. Depending on the application, boards may exchange data at speeds of up to 25.6 Gbps bidirectional sustained rates in a double star topology through back-plane connections. Also, front panel optical fibres can be used when higher rates are required by the application. The system may be controlled by a standard Ethernet connection, thus providing easy integration with control computers and avoiding the need for drivers. Two control systems are foreseen. A Socket connection provides easy interaction with automation software regardless of the operating system used for the control PC. Moreover a web server may run on the Envision cards and provide an easy intuitive user interface. The system and its different components will be introduced. Some preliminary measurements with high speed signal links will be presented as well as the signal conditioning used to allow these rates. (authors)

  20. Rotor fatigue monitoring data acquisition system

    Smith, Scott M.

    1993-01-01

    The 40 by 80 Foot Wind Tunnel of the National Full Scale Aerodynamics Complex (NFAC) had a requirement to monitor rotor fatigue during a test. This test subjected various rotor components to stress levels higher than their structural fatigue limits. A data acquisition system was developed to monitor the cumulative fatigue damage of rotor components using National Instruments hardware and LabVIEW software. A full description of the data acquisition system including its configuration and salient features, is presented in this paper.

  1. DABASCO Experiment Data Acquisition and Control System

    DABASCO experiment wants to study the thermohydraulic phenomena produced into the containment area for a severe accident in a nuclear power facility. This document describes the characteristics of the data acquisition and control system used in the experiment. The main elements of the system were a data acquisition board, PCI-MIO-16E-4, and an application written with LaB View. (Author) 5 refs

  2. Architecture of an acquisition system-multiprocessors

    To follow the huge increasing of concerned parameters in nuclear detection systems, acquisition systems become bigger and have to present very good rapidity performance. At Ganil, four detection systems have been set in Nautilus reaction chamber, that lead to experiment configurations with 700 parameters to process. In front of present acquisition system limitation, a device more relevant to lecture of a large number of channels show off necessary. Functionalities already operating in other systems and hardware already used have been chosen; specific technical solutions were aldo developed to use the most recent techniques and to take in account the four detection system structure of the device

  3. Memory-Based Lexical Acquisition and Processing

    Daelemans, W

    1994-01-01

    Current approaches to computational lexicology in language technology are knowledge-based (competence-oriented) and try to abstract away from specific formalisms, domains, and applications. This results in severe complexity, acquisition and reusability bottlenecks. As an alternative, we propose a particular performance-oriented approach to Natural Language Processing based on automatic memory-based learning of linguistic (lexical) tasks. The consequences of the approach for computational lexicology are discussed, and the application of the approach on a number of lexical acquisition and disambiguation tasks in phonology, morphology and syntax is described.

  4. A novel time stamping technique for distributed data acquisition systems.

    Subramaniam, E T

    2012-12-01

    In this paper, we discuss the design and implementation of a synchronizing technique for data acquisition systems, which can effectively use the normal, standard local area network cables to provide a time stamp, with a range up to 32 days, resolution of 10 ns, and synchronization within ± 5 ns. This system may be used to synchronize data being collected by independent heterogeneous data acquisition modules, that acquire events independently. Such distributed systems are generally designed with a tree-like structure or independent self-triggered acquisition boxes. These leaf edges are connected through branches to the root node, via non-bus based inter-connecting links. The present system has been tested with a set of self-triggered digital signal processing based data acquisition engines, having a 100 MHz analog to digital converter front end. PMID:23277988

  5. A tailored 200 parameter VME based data acquisition system for IBA at the Lund Ion Beam Analysis Facility - Hardware and software

    Elfman, Mikael; Ros, Linus; Kristiansson, Per; Nilsson, E. J. Charlotta; Pallon, Jan

    2016-03-01

    With the recent advances towards modern Ion Beam Analysis (IBA), going from one- or few-parameter detector systems to multi-parameter systems, it has been necessary to expand and replace the more than twenty years old CAMAC based system. A new VME multi-parameter (presently up to 200 channels) data acquisition and control system has been developed and implemented at the Lund Ion Beam Analysis Facility (LIBAF). The system is based on the VX-511 Single Board Computer (SBC), acting as master with arbiter functionality and consists of standard VME modules like Analog to Digital Converters (ADC's), Charge to Digital Converters (QDC's), Time to Digital Converters (TDC's), scaler's, IO-cards, high voltage and waveform units. The modules have been specially selected to support all of the present detector systems in the laboratory, with the option of future expansion. Typically, the detector systems consist of silicon strip detectors, silicon drift detectors and scintillator detectors, for detection of charged particles, X-rays and γ-rays. The data flow of the raw data buffers out from the VME bus to the final storage place on a 16 terabyte network attached storage disc (NAS-disc) is described. The acquisition process, remotely controlled over one of the SBCs ethernet channels, is also discussed. The user interface is written in the Kmax software package, and is used to control the acquisition process as well as for advanced online and offline data analysis through a user-friendly graphical user interface (GUI). In this work the system implementation, layout and performance are presented. The user interface and possibilities for advanced offline analysis are also discussed and illustrated.

  6. Optical image acquisition system for colony analysis

    Wang, Weixing; Jin, Wenbiao

    2006-02-01

    For counting of both colonies and plaques, there is a large number of applications including food, dairy, beverages, hygiene, environmental monitoring, water, toxicology, sterility testing, AMES testing, pharmaceuticals, paints, sterile fluids and fungal contamination. Recently, many researchers and developers have made efforts for this kind of systems. By investigation, some existing systems have some problems since they belong to a new technology product. One of the main problems is image acquisition. In order to acquire colony images with good quality, an illumination box was constructed as: the box includes front lightning and back lightning, which can be selected by users based on properties of colony dishes. With the illumination box, lightning can be uniform; colony dish can be put in the same place every time, which make image processing easy. A digital camera in the top of the box connected to a PC computer with a USB cable, all the camera functions are controlled by the computer.

  7. Options for Next Generation Digital Acquisition Systems

    Boccardi, A

    2011-01-01

    Digital acquisition system designers have an always increasing number of options in terms of bus standards and digital signal processing hardware among which to choose. This allows for high flexibility but also opens the door to a proliferation of different architectures, potentially limiting the reusability and the design synergies among the various instrumentation groups. This contribution illustrates the design trends in some of the major institutes around the world with design examples including VME, PCI and TCA based modular systems using AMC and/or FMC mezzanines. Some examples of FPGA design practices aimed at increasing reusability of code will be mentioned together with some of the tools already available to designers to improve the information exchange and collaboration, like the Open Hardware Repository project.

  8. MADOCA II data acquisition and storage system

    In SPring-8, we are constructing MADOCA II, next generation accelerator control framework. It will be installed in the spring of 2014. We describe the part of the data acquisition and the storage system of MADOCA II. MADOCA was built on the bases of ONC-RPC for communication between processes and a relational database for data management. We designed the new framework with the long experience on MADOCA. We employ Zeromq messages packed by Messagepack for communication. NoSQL databases, Redis and Apache Cassandra, store log data. We obtained a high performance, highly reliable, well scalable and flexible data management system. In this paper, we will discuss requirements, design, implementation and the result of the long run test. (author)

  9. The Giga Bit Transceiver based Expandable Front-End (GEFE)—a new radiation tolerant acquisition system for beam instrumentation

    The Giga Bit Transceiver based Expandable Front-End (GEFE) is a multi-purpose FPGA-based radiation tolerant card. It is foreseen to be the new standard FMC carrier for digital front-end applications in the CERN BE-BI group. Its intended use ranges from fast data acquisition systems to slow control installed close to the beamlines, in a radioactive environment exposed to total ionizing doses of up to 750 Gy. This paper introduces the architecture of the GEFE, its features as well as examples of its application in different setups

  10. The Giga Bit Transceiver based Expandable Front-End (GEFE)—a new radiation tolerant acquisition system for beam instrumentation

    Barros Marin, M.; Boccardi, A.; Donat Godichal, C.; Gonzalez, J. L.; Lefevre, T.; Levens, T.; Szuk, B.

    2016-02-01

    The Giga Bit Transceiver based Expandable Front-End (GEFE) is a multi-purpose FPGA-based radiation tolerant card. It is foreseen to be the new standard FMC carrier for digital front-end applications in the CERN BE-BI group. Its intended use ranges from fast data acquisition systems to slow control installed close to the beamlines, in a radioactive environment exposed to total ionizing doses of up to 750 Gy. This paper introduces the architecture of the GEFE, its features as well as examples of its application in different setups.

  11. Data acquisition system for nuclear reactor environment

    We have designed an online real time data acquisition system for nuclear reactor environment monitoring. Data acquisition system has eight channels of analog signals and one channel of pulsed input signal from detectors like GM Tube, or any other similar input. Connectivity between the data acquisition system and environmental parameters monitoring computer is made through a wireless data communication link of 151 MHz/100 mW RF power and 10 km maximum communication range for remote data telemetry. Sensors used are gamma ionizing radiation sensor made from CsI:Tl scintillator, atmospheric pressure sensor with +/-0.1 mbar precision, temperature sensor with +/-l milli degree Celsius precision, relative humidity with +/-0.1RH precision, pulse counts with +/-1 count in 0-10000 Hz count rate measurement precision and +/-1 count is accumulated count measurement precision. The entire data acquisition system and wireless telemetry system is 9 V battery powered and the device is to be fitted on a wireless controlled mobile robot for scanning the nuclear reactor zone from remote. Wireless video camera has been planned for integration into the existing system on a later date for moving the robotics environmental data acquisition system beyond human vision reach. System development cost is Rs.25 Lacs and has been developed for Department of Atomic Energy, Government of India and Indian Defense use. (author)

  12. The multi-crate VME data acquisition system

    The VME (Versa Module Europe) based data acquisition (DAQ) system is being used for many nuclear physics experiments at VECC. The current version of the software supports both VME and CAMAC system. The DAQ system has been recently upgraded to support the multi-crate VME system

  13. A scaler-based data acquisition system for measuring parity-violating asymmetry in deep inelastic scattering

    Subedi, Ramesh R. [Virginia U.; Wang, Diancheng [Virginia U.; Pan, Kai [MIT; Deng, Xiaoyan [Virginu U.; Michaels, Robert W. [JLAB; Shahinyan, Albert [Yerevan Institute; Wojtsekhowski, Bogdan B. [JLAB; Zheng, Xiaochao [JLAB

    2013-10-01

    An experiment that measured the parity violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the 10^-4 level needed to be measured at event rates up to 500 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: The pion contamination in the electron samples was controlled at the order of 2 × 10^-4 or below with an electron efficiency of higher than 91% throughout the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.2%, and the statistical quality of the asymmetry measurement agreed with the Gaussian distribution to over five orders of magnitudes. The DAQ system is presented here with an emphasis on its design scheme, the achieved PID performance, deadtime effect and the capability of measuring small asymmetries.

  14. A scaler-based data acquisition system for measuring parity-violating asymmetry in deep inelastic scattering

    Subedi, R.; Wang, D. [University of Virginia, Charlottesville, VA 22904 (United States); Pan, K. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Deng, X. [University of Virginia, Charlottesville, VA 22904 (United States); Michaels, R. [Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States); Reimer, P.E. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Shahinyan, A. [Yerevan Physics Institute, Yerevan 0036 (Armenia); Wojtsekhowski, B. [Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States); Zheng, X., E-mail: xiaochao@jlab.org [University of Virginia, Charlottesville, VA 22904 (United States)

    2013-10-01

    An experiment that measured the parity-violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the 10{sup −4} level needed to be measured at event rates up to 600 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: the pion contamination in the electron samples was controlled at the order of 2×10{sup −4} or below with an electron efficiency of higher than 91% during most of the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.5%, and the statistical quality of the asymmetry measurement agreed with the Gaussian distribution to over five orders of magnitudes. The DAQ system is presented here with an emphasis on its design scheme, the achieved PID performance, deadtime effect and the capability of measuring small asymmetries.

  15. A scaler-based data acquisition system for measuring parity-violating asymmetry in deep inelastic scattering

    An experiment that measured the parity-violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the 10−4 level needed to be measured at event rates up to 600 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: the pion contamination in the electron samples was controlled at the order of 2×10−4 or below with an electron efficiency of higher than 91% during most of the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.5%, and the statistical quality of the asymmetry measurement agreed with the Gaussian distribution to over five orders of magnitudes. The DAQ system is presented here with an emphasis on its design scheme, the achieved PID performance, deadtime effect and the capability of measuring small asymmetries

  16. A scaler-based data acquisition system for measuring parity-violating asymmetry in deep inelastic scattering

    Subedi, R.; Wang, D.; Pan, K.; Deng, X.; Michaels, R.; Reimer, P. E.; Shahinyan, A.; Wojtsekhowski, B.; Zheng, X.

    2013-10-01

    An experiment that measured the parity-violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the 10-4 level needed to be measured at event rates up to 600 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: the pion contamination in the electron samples was controlled at the order of 2×10-4 or below with an electron efficiency of higher than 91% during most of the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.5%, and the statistical quality of the asymmetry measurement agreed with the Gaussian distribution to over five orders of magnitudes. The DAQ system is presented here with an emphasis on its design scheme, the achieved PID performance, deadtime effect and the capability of measuring small asymmetries.

  17. The Data Acquisition System for LZ

    The Data Acquisition System of the LZ experiment, the 10-tonne dark matter detector to be installed at the Sanford Underground Research Facility (SURF), will collect signals from 788 photomultiplier tubes (PMTs). Because the signals from the time projection chamber PMTs will be passed through dual-gain amplifiers, the DAQ system will collect waveforms from a total of 1276 channels, using custom built, 32-channel, FPGA-based digital signal processors. The appropriately conditioned signals will be digitized at 100 MHz with 14-bit resolution. Based on actual measurements with a small-scale prototype system, the LZ DAQ is expected to be able to handle a maximum data rate of 1,500 MB/s. During calibrations, it is estimated that only 33% of the system resources are utilized. The digital filters that are used for event selection operate with an aggregate throughput in excess of 595,000 MB/s. Event selection decisions are based on, for example, the amount of scintillation (S1) and photoluminescence S2 light, S1 and S2 hit-patterns, and total energy deposition

  18. The Data Acquisition System for LZ

    Druszkiewicz, Eryk

    2015-01-01

    The Data Acquisition System of the LZ experiment, the 10-tonne dark matter detector to be installed at the Sanford Underground Research Facility (SURF), will collect signals from 788 photomultiplier tubes (PMTs). Because the signals from the time projection chamber PMTs will be passed through dual-gain amplifiers, the DAQ system will collect waveforms from a total of 1276 channels, using custom built, 32-channel, FPGA-based digital signal processors. The appropriately conditioned signals will be digitized at 100 MHz with 14-bit resolution. Based on actual measurements with a small-scale prototype system, the LZ DAQ is expected to be able to handle a maximum sparsified data rate of ~1500 MB/s. During calibrations, it is estimated that only 33% of the system resources are utilized. The digital filters that are used for data selection operate with an aggregate throughput in excess of 595,000 MB/s. Data selection decisions are based on, for example, the amount of scintillation (S1) and photoluminescence S2 light,...

  19. Changing of the ELAN data acquisition to an integrated system with VME frontend acquisition and VAX work station analysis

    A new data acquisition system for the experiment ELAN at the electron stretcher accelerator ELSA had become necessary due to changes in the experimental setup. The data acquisition and analysis which formerly both were performed by a single computer system are now separately done by a VMEbus-Computer and a VAX-Workstation. Based on the software components MECDAS (Mainz Experiment Control and Data Acquisition System) and GOOSY (GSI Online Offline System) a powerfull tool for data acquisition and analysis has been adapted to the requirements of the ELAN experiment. (orig.)

  20. Design and development of an automated, portable and handheld tablet personal computer-based data acquisition system for monitoring electromyography signals during rehabilitation.

    Ahamed, Nizam U; Sundaraj, Kenneth; Poo, Tarn S

    2013-03-01

    This article describes the design of a robust, inexpensive, easy-to-use, small, and portable online electromyography acquisition system for monitoring electromyography signals during rehabilitation. This single-channel (one-muscle) system was connected via the universal serial bus port to a programmable Windows operating system handheld tablet personal computer for storage and analysis of the data by the end user. The raw electromyography signals were amplified in order to convert them to an observable scale. The inherent noise of 50 Hz (Malaysia) from power lines electromagnetic interference was then eliminated using a single-hybrid IC notch filter. These signals were sampled by a signal processing module and converted into 24-bit digital data. An algorithm was developed and programmed to transmit the digital data to the computer, where it was reassembled and displayed in the computer using software. Finally, the following device was furnished with the graphical user interface to display the online muscle strength streaming signal in a handheld tablet personal computer. This battery-operated system was tested on the biceps brachii muscles of 20 healthy subjects, and the results were compared to those obtained with a commercial single-channel (one-muscle) electromyography acquisition system. The results obtained using the developed device when compared to those obtained from a commercially available physiological signal monitoring system for activities involving muscle contractions were found to be comparable (the comparison of various statistical parameters) between male and female subjects. In addition, the key advantage of this developed system over the conventional desktop personal computer-based acquisition systems is its portability due to the use of a tablet personal computer in which the results are accessible graphically as well as stored in text (comma-separated value) form. PMID:23662342

  1. Design of data acquisition system based on AVR microcontroller%基于AVR单片机的数据采集系统的设计

    叶军

    2013-01-01

    介绍了基于AVR单片机的数据采集系统的硬件和软件设计。该系统分为数据采集传输和数据显示两部分。数据采集以ATMEGA328P为核心,利用该单片机进行多路数据采集。通过CH340T芯片的USB转串口的功能,实现AVR单片机与PC机间采集数据的传输。数据显示模块,通过Visual studio开发环境下的C#语言,运用.Net Framework提供的SerialPort类实现上位机采集数据的收集和显示。%The paper introduces the hardware design and the software design of a data acquisition system based on AVR Microcontroller. The whole system can be divided into data acquisition module and data display module. In data acquisition module, ATMEGA328P is used to collect data in multi-channels. In order to send the converted data to PC port, the communication between AVR microcontroller and pc is achieved by utilizing the serial port function of CH340T chip. In the data display module, data is collected by and displayed in Visual studio environment.

  2. A scalable data acquisition system using the chorus operating system

    A Scalable Data Acquisition System has been designed using Chorus, a modular distributed real-time operating system and serial point-links. The SDAS is based on data-driven clients and servers which allow scability of the software through their distribution and hierarchy. The communication between clients and servers is under-pinned by the Inter Process Communication (IPC) facilities of the Chorus operating system. The IPC offers communication indirection; the communication interface of clients and servers remains constant across a distributed system independent of the placement of process on processors. The scalability of the hardware is achieved using point-to-point serial links. (author)

  3. Multiple-user data acquisition and analysis system

    Manzella, V.; Chrien, R.E.; Gill, R.L.; Liou, H.I.; Stelts, M.L.

    1981-01-01

    The nuclear physics program at the Brookhaven National Laboratory High Flux Beam Reactor (HFBR) employs a pair of PDP-11 computers for the dual functions of data acquisition and analysis. The data acquisition is accomplished through CAMAC and features a microprogrammed branch driver to accommodate various experimental inputs. The acquisition computer performs the functions of multi-channel analyzers, multiscaling and time-sequenced multichannel analyzers and gamma-ray coincidence analyzers. The data analysis computer is available for rapid processing of data tapes written by the acquisition computer. The ability to accommodate many users is facilitated by separating the data acquisition and analysis functions, and allowing each user to tailor the analysis to the specific requirements of his own experiment. The system is to be upgraded soon by the introduction of a dual port disk to allow a data base to be available to each computer.

  4. Multiple-user data acquisition and analysis system

    The nuclear physics program at the Brookhaven National Laboratory High Flux Beam Reactor (HFBR) employs a pair of PDP-11 computers for the dual functions of data acquisition and analysis. The data acquisition is accomplished through CAMAC and features a microprogrammed branch driver to accommodate various experimental inputs. The acquisition computer performs the functions of multi-channel analyzers, multiscaling and time-sequenced multichannel analyzers and gamma-ray coincidence analyzers. The data analysis computer is available for rapid processing of data tapes written by the acquisition computer. The ability to accommodate many users is facilitated by separating the data acquisition and analysis functions, and allowing each user to tailor the analysis to the specific requirements of his own experiment. The system is to be upgraded soon by the introduction of a dual port disk to allow a data base to be available to each computer

  5. LAMPF nuclear chemistry data acquisition system

    The LAMPF Nuclear Chemistry Data Acquisition System (DAS) is designed to provide both real-time control of data acquisition and facilities for data processing for a large variety of users. It consists of a PDP-11/44 connected to a parallel CAMAC branch highway as well as to a large number of peripherals. The various types of radiation counters and spectrometers and their connections to the system will be described. Also discussed will be the various methods of connection considered and their advantages and disadvantages. The operation of the system from the standpoint of both hardware and software will be described as well as plans for the future

  6. Treebank-based grammar acquisition for German

    Rehbein, Ines

    2009-01-01

    Manual development of deep linguistic resources is time-consuming and costly and therefore often described as a bottleneck for traditional rule-based NLP. In my PhD thesis I present a treebank-based method for the automatic acquisition of LFG resources for German. The method automatically creates deep and rich linguistic presentations from labelled data (treebanks) and can be applied to large data sets. My research is based on and substantially extends previous work on automatically ac...

  7. Technology-based Mergers and Acquisitions

    Wang, Daojuan; Moini, Hamid

    Therefore, this chapter reflects on the current state of knowledge concerning the technology-based mergers and acquisitions (TBM&As) with regard to the following issues: (1) How do TBM&As perform? (2) What are the contingency factors and how do they impact TBM&A performance? (3) What kind of...

  8. EEG Acquisition System Based on MCU and Hypothesized Instrument%基于MCU与虚拟仪器的脑电信号采集系统

    杨名龙; 刘泉; 艾青公

    2011-01-01

    针对人体表皮脑电信号特点提出了基于MCU与虚拟仪器的脑电信号采集系统.采用生物电信号前置放大电路、滤波电路、50 Hz工频陷波电路、电平抬升电路有效滤除信号噪声并放大脑电信号,同时采用MSP430 MCU高速采样技术和串口通信技术并结合LabVIEW开发上位机软件低成本地完成对脑电信号的数字化采集和实时波形显示.系统仿真和实验表明,系统能够有效地实时采集人体生物电信号,为脑机接口研究提供支持.%The EEG acquisition system is put forward based on the character of electrical signal of human scalp. The electric circuit that consists of biological signal preamplifier circuit, filter circuit, 50 Hz frequency trap circuit can effectively filter the signal noise and amplify the EEG signals. Simultaneously, the system in which the technology of highspeed sampling and serial communication based on MSP430 microcontroller and PC software developed on Lab VIEW are adopted could complete the work of digital EEG signal acquisition and real-time waveform display at low cost. The result of system circuit simulation and experiment of data acquisition test indicates that the system put forward could process human bioelectricity signal effectively in real time, and it could be a support for BCI research.

  9. Data acquisition system for TBR-1

    The data acquisition system of Tokamak TBR-1 has as goal to obtain retrieval signal from diagnostic systems. The final process of storage, register and transfer of the signals is described. The hardware used to convert the signals and its storage and the software developed for the operation are discussed

  10. The data acquisition system of ICT

    The purpose of the design is to develop a data acquisition system which can be used to collect and transmit hundreds of channels of weak light signal data at the same time, so as to meet the need of industrial computer tomography. The system is composed of two parts, detection circuit and acquisition circuit. FPGA and 20 bit integral and conversion chips are the primary chips adopted in detection circuit, while the primary chips for acquisition circuit are FPGA and AMCCS5335. The problems, data jam-up and data drop were solved by using multilevel memorizer. A large number of experiments have proved that this system has very high precision and transmission reliability. The design has been applied in several industrial computer tomography machines produced by the industrial computer tomography research center of Chongqing University, and its effectiveness is well apprised. (authors)

  11. Long- distance Wireless Data Acquisition System Based on Wi -Fi%基于Wi-Fi的远距离无线数据采集系统

    吴世玉; 曾强; 赵娟; 张志杰

    2012-01-01

    传统的军用摩托车测试系统大多是存储测试系统,无法将测试数据实时地传递到远端的控制台,这给数据的读取和分析带来不便.论文设计并实现了一种基于Wi - Fi远距离无线数据采集系统.相比目前其它无线传输系统该无线采集系统具有传输速度快、距离远、抗干扰能力强、能与以太网整合等优点.在满足传输速率的前提下,通信距离可达10 km.%Most of conventional motorcycle measurement system is storage measurement system which can not transmit real - time data to remote console, so it is inconvenient to read data and analysis data . Therefore, design and implement a WiFi - based long - distance wireless acquisition system. Compared other wireless transmission systems in present this wireless acquisition system has faster transfer rate, longer distances , anti - interference ability and integration with Ethernet. Communication distance is up to 10km on condition that transmission rate is met the requirement.

  12. Data acquisition system for atmospheric Lidar

    For the purpose of improving the detection range of lidar which is used in atmospheric environmental monitoring, a solution that single photon counter and photomultiplier work together was proposed. The photomultiplier was applied to detect strong signal echoing from a short distance, while single photon counter was used to record remote and weak echo signal. The data acquired in this way were accumulated to increase SRN. According to the requirement of DIAL, A high-speed and high-precision dual-channel data acquisition system was designed and implemented for lidar. The system which was based on FPGA sampled signals with a 14 bits ADC and acquired data in real time through hardware logic as well as transported data to computer via USB2.0 bus. The result of experiments demonstrates that the detection range of atmospheric lidar is improved by this system. The result also shows that the system acquires data promptly, and provides high temporal and spatial resolution, which means that it can satisfy the requirements of atmospheric Liar. (authors)

  13. LabVIEW中DAQ数据采集系统设计%Design of the Data Acquisition System Based on LabVIEW DAQ

    王平; 杨涛; 侯守全; 李广义

    2015-01-01

    The open test for rocket nozzle closure is difficult to simulate, control and measure, by using DAQ data acquisition module in LabVIEW software, the pressure rising rate can be easily simulated when the closure is opened, and this rising rate can be adjustable and measured. Based on platform of NI-cDAQ9174 chassis, digital modules NI9421, NI9472 and analog modules NI9221, NI9227, the data acquisition system including pressure signal acquisition with digital combination and analog combination, and target line voltage record has been developed, to implement pressure data acquisition and target voltage signal record when the closure of rocket nozzle is opened.%针对模拟火箭喷管堵盖打开试验难模拟、难控制、难测量等特点,采用LabVIEW软件中DAQ数据采集系统。考虑到模拟火箭喷管堵盖打开时的压力上升速率,且要求压力上升速率可调可测,提出基于NI-cDAQ9174机箱、数字量NI9421 NI9472模块和模拟量NI9221 NI9227模块的程序平台。开发了一套包含数字量组合与模拟量混合的压力信号采集、靶线电压记录的数据采集系统,最终实现了模拟火箭喷管堵盖打开时压力数据的采集与靶线电压信号的记录。

  14. Case Base Mining for Adaptation Knowledge Acquisition

    D'Aquin, Mathieu; Badra, Fadi; Lafrogne, Sandrine; Lieber, Jean; Napoli, Amedeo; Szathmary, Laszlo

    2007-01-01

    International audience In case-based reasoning, the adaptation of a source case in order to solve the target problem is at the same time crucial and difficult to implement. The reason for this difficulty is that, in general, adaptation strongly depends on domain-dependent knowledge. This fact motivates research on adaptation knowledge acquisition (AKA). This paper presents an approach to AKA based on the principles and techniques of knowledge discovery from databases and data-mining. It is...

  15. Multiparametric acquisition program for PLURIMAT systems

    The PLURIMAT multiparametric acquisition system is presented and the various parameters accessible to users are indicated. The part of these parameters in processing of different possible tasks is described. In particular the multiparametric acquisition task allowing the storage of correlated events on magnetic tape is studied. The possible constitution of direct spectra and spectra issued acquisitions depending on windows related to values of the various parameters is considered. Then, the modality of introduction of these parameters (user-computer dialogue) and processing of the different feasible tasks are described. In particular, the principles of calculations on spectra elaborated in memory and the formats used for spherical input-output devices associated to the system are detailed

  16. Applicability of Agent-Based Technology for Acquisition, Monitoring and Process Control Systems at Real Time for Distributed Architectures

    Modern industrial plants are characterized by their large size and higher complexity of the processes involved in their operations.The real time monitoring systems of theses plants must be used a distributed architecture.Due to the pressure of competitive markets, an efficient adaptability to changes must be present in the plants.Modifications in the plants due to changes in the lay-out, the introduction of newer supervision, control and monitoring technologies must not affect the integrity of the systems.The aim of this work is give an introduction to the agent-based technology and analyze it advantage for the development of a modern monitoring system

  17. Data acquisition system of a simulator

    The Nuclear Power Plant Simulator (NPPS) at Nuclear Training Centre (NTC), Rajasthan Atomic Power Station is primarily a training device required to achieve training programme for nuclear power plant operators. It has got a control room which is a replica of RAPS-1 Control Room. A 32 bit super micro computer (Motorala 68020 based) has been used as main simulation computer to simulate the responses of plant as per the input changes initiated by the operator in the form of operation of various hand switches and potentiometers. For achieving real time environment, the scanning of inputs from control panels and updating of information on various displays of control panels is executed every 200 milli seconds so that operator feels normal response of displays due to his actions. For data transaction between main simulator computer and control panels, data acquisition system based on TDC-316 computer manufactured by Electronics Corporation of India Ltd was installed and commissioned. The system is described. Experience and problems encountered in operation and maintenance, improvements and modifications carried out are described. (author)

  18. The UCR gamma ray telescope data acquisition system

    An electronics system based on the DEC Falcon SBC-11/23+ has been designed and built to support the UCR balloon-borne double Compton gamma ray telescope. The system provides support for commands, data acquisition, data routing and compression, and for photomultiplier tube gain control. The software consists of a number of interrupt driven routines of differing priorities to handle each system task. This includes two circular buffers for onboard processing and bit encoding before transmitting the information to the ground computer. With the system, acquisition of gamma ray events at rates above the 200 Hz telemetry constraint are easily achieved

  19. Data acquisition system issues for large experiments

    Siskind, E. J.

    2007-09-01

    This talk consists of personal observations on two classes of data acquisition ("DAQ") systems for Silicon trackers in large experiments with which the author has been concerned over the last three or more years. The first half is a classic "lessons learned" recital based on experience with the high-level debug and configuration of the DAQ system for the GLAST LAT detector. The second half is concerned with a discussion of the promises and pitfalls of using modern (and future) generations of "system-on-a-chip" ("SOC") or "platform" field-programmable gate arrays ("FPGAs") in future large DAQ systems. The DAQ system pipeline for the 864k channels of Si tracker in the GLAST LAT consists of five tiers of hardware buffers which ultimately feed into the main memory of the (two-active-node) level-3 trigger processor farm. The data formats and buffer volumes of these tiers are briefly described, as well as the flow control employed between successive tiers. Lessons learned regarding data formats, buffer volumes, and flow control/data discard policy are discussed. The continued development of platform FPGAs containing large amounts of configurable logic fabric, embedded PowerPC hard processor cores, digital signal processing components, large volumes of on-chip buffer memory, and multi-gigabit serial I/O capability permits DAQ system designers to vastly increase the amount of data preprocessing that can be performed in parallel within the DAQ pipeline for detector systems in large experiments. The capabilities of some currently available FPGA families are reviewed, along with the prospects for next-generation families of announced, but not yet available, platform FPGAs. Some experience with an actual implementation is presented, and reconciliation between advertised and achievable specifications is attempted. The prospects for applying these components to space-borne Si tracker detectors are briefly discussed.

  20. Data acquisition system issues for large experiments

    This talk consists of personal observations on two classes of data acquisition ('DAQ') systems for Silicon trackers in large experiments with which the author has been concerned over the last three or more years. The first half is a classic 'lessons learned' recital based on experience with the high-level debug and configuration of the DAQ system for the GLAST LAT detector. The second half is concerned with a discussion of the promises and pitfalls of using modern (and future) generations of 'system-on-a-chip' ('SOC') or 'platform' field-programmable gate arrays ('FPGAs') in future large DAQ systems. The DAQ system pipeline for the 864k channels of Si tracker in the GLAST LAT consists of five tiers of hardware buffers which ultimately feed into the main memory of the (two-active-node) level-3 trigger processor farm. The data formats and buffer volumes of these tiers are briefly described, as well as the flow control employed between successive tiers. Lessons learned regarding data formats, buffer volumes, and flow control/data discard policy are discussed. The continued development of platform FPGAs containing large amounts of configurable logic fabric, embedded PowerPC hard processor cores, digital signal processing components, large volumes of on-chip buffer memory, and multi-gigabit serial I/O capability permits DAQ system designers to vastly increase the amount of data preprocessing that can be performed in parallel within the DAQ pipeline for detector systems in large experiments. The capabilities of some currently available FPGA families are reviewed, along with the prospects for next-generation families of announced, but not yet available, platform FPGAs. Some experience with an actual implementation is presented, and reconciliation between advertised and achievable specifications is attempted. The prospects for applying these components to space-borne Si tracker detectors are briefly discussed

  1. Information management system breadboard data acquisition and control system.

    Mallary, W. E.

    1972-01-01

    Description of a breadboard configuration of an advanced information management system based on requirements for high data rates and local and centralized computation for subsystems and experiments to be housed on a space station. The system is to contain a 10-megabit-per-second digital data bus, remote terminals with preprocessor capabilities, and a central multiprocessor. A concept definition is presented for the data acquisition and control system breadboard, and a detailed account is given of the operation of the bus control unit, the bus itself, and the remote acquisition and control unit. The data bus control unit is capable of operating under control of both its own test panel and the test processor. In either mode it is capable of both single- and multiple-message operation in that it can accept a block of data requests or update commands for transmission to the remote acquisition and control unit, which in turn is capable of three levels of data-handling complexity.

  2. Data acquisition system from uncorrelated experimental inputs

    The system described in this work was performed as a small acquisition center for neutron physics experiment and was designed as a specialized device. The system was entirely MSI and SSI integrated circuits performed using 33 double sided printed circuit boards. The modular structure with information flow on buses led to wining simplification. The system can be further developed, using appropriate interfaces and programming modules to extend the range of possible experiments

  3. DAISY - the Oslo Cyclotron data acquisition system

    The new CACTUS multidetector system for the Oslo Cyclotron consists of 8 particle telescopes, 28 NAI detectors and 2 Ge detectors. Each detector gives rise to one energy parameter and one time parameter. Thus, a total of 80 parameters are present. The counting rate is 100 kByte/s for the highest beam intensities. A new data acquisition system, DAISY, satisfying these demands has been designed. The present report is intended as a complete technical manual for the new system. 24 refs

  4. Pulse Signal Data Acquisition System Based on LabVIEW%基于LabVIEW的脉象信息采集系统

    邹建; 应苑松; 卢平; 钱波

    2011-01-01

    One kind of pulse condition information acquisition system based on LabVIEW with the function of storage and analysis was developed. For the better use of the storage and analysis function of human body' s pulse condition information, a self-made capacitive pressure sensor is used to obtain the human pulse signal, and it joins the related hardware circuit to make signal conditioned. Through the USB2004 date acquisition card gathering human pulse signal, and applying the powerful function of virtual instrument technology to construct a human pulse data acquisition system by making full use of the powerful function of LabVIEW developing platform. The system can realize the following functions such as real-time data acquisition on the human body pulse information, data storage, waveform playback, spectral analysis,pulse frequency display,warning for pulse too slow or too fast. This system put the collected pulse signal into analysis, and can effectively obtain the spectrum information which contains rich human physiological condition for medical research use,and it can provide reference data which is of great significance. The experimental results indicate the system has good stability and reliability.%为了更好地对人体脉象信息进行存储、分析,便于医学研究,利用自行研制的电容式压力传感器来获取脉象信息,设计了相关的硬件电路对信号进行调理;通过USB2004数据采集卡采集脉象信息,并借助虚拟仪器技术充分利用LabVIEW开发平台的强大功能,构建出人体脉象信息采集系统.该系统能够实现对人体脉象信息的实时数据采集、数据存储、波形回放、频谱分析、脉搏频率的显示、脉搏过缓或过速的警示等功能.通过对采集到的脉象信息进行分析,能有效获得包含人体生理状况的丰富的频谱信息,为医学研究提供极具参考价值的数据.实验结果表明,系统具有良好的可靠性和稳定性.

  5. Investigation of High-Level Synthesis tools’ applicability to data acquisition systems design based on the CMS ECAL Data Concentrator Card example

    HUSEJKO, Michal; RASTEIRO DA SILVA, Jose Carlos

    2015-01-01

    High-Level Synthesis (HLS) for Field-Programmable Logic Array (FPGA) programming is becoming a practical alternative to well-established VHDL and Verilog languages. This paper describes a case study in the use of HLS tools to design FPGA-based data acquisition systems (DAQ). We will present the implementation of the CERN CMS detector ECAL Data Concentrator Card (DCC) functionality in HLS and lessons learned from using HLS design flow.The DCC functionality and a definition of the initial system-level performance requirements (latency, bandwidth, and throughput) will be presented. We will describe how its packet processing control centric algorithm was implemented with VHDL and Verilog languages. We will then show how the HLS flow could speed up design-space exploration by providing loose coupling between functions interface design and functions algorithm implementation.We conclude with results of real-life hardware tests performed with the HLS flow-generated design with a DCC Tester system.

  6. Investigation of High-Level Synthesis tools’ applicability to data acquisition systems design based on the CMS ECAL Data Concentrator Card example

    HUSEJKO, Michal; EVANS, John; RASTEIRO DA SILVA, Jose Carlos

    2015-12-01

    High-Level Synthesis (HLS) for Field-Programmable Logic Array (FPGA) programming is becoming a practical alternative to well-established VHDL and Verilog languages. This paper describes a case study in the use of HLS tools to design FPGA-based data acquisition systems (DAQ). We will present the implementation of the CERN CMS detector ECAL Data Concentrator Card (DCC) functionality in HLS and lessons learned from using HLS design flow. The DCC functionality and a definition of the initial system-level performance requirements (latency, bandwidth, and throughput) will be presented. We will describe how its packet processing control centric algorithm was implemented with VHDL and Verilog languages. We will then show how the HLS flow could speed up design-space exploration by providing loose coupling between functions interface design and functions algorithm implementation. We conclude with results of real-life hardware tests performed with the HLS flow-generated design with a DCC Tester system.

  7. NASA Data Acquisitions System (NDAS) Software Architecture

    Davis, Dawn; Duncan, Michael; Franzl, Richard; Holladay, Wendy; Marshall, Peggi; Morris, Jon; Turowski, Mark

    2012-01-01

    The NDAS Software Project is for the development of common low speed data acquisition system software to support NASA's rocket propulsion testing facilities at John C. Stennis Space Center (SSC), White Sands Test Facility (WSTF), Plum Brook Station (PBS), and Marshall Space Flight Center (MSFC).

  8. The house keeping data acquisition system in space detection

    The house keeping data acquisition system in space detection is introduced. It is based on micro-controller 80C196. The system can automatically collect the data such as the temperature, high voltage power supply and the events counter, and communication data with 1553B bus interface

  9. Optimization of Hierarchical System for Data Acquisition

    V. Novotny

    2011-04-01

    Full Text Available Television broadcasting over IP networks (IPTV is one of a number of network applications that are except of media distribution also interested in data acquisition from group of information resources of variable size. IP-TV uses Real-time Transport Protocol (RTP protocol for media streaming and RTP Control Protocol (RTCP protocol for session quality feedback. Other applications, for example sensor networks, have data acquisition as the main task. Current solutions have mostly problem with scalability - how to collect and process information from large amount of end nodes quickly and effectively? The article deals with optimization of hierarchical system of data acquisition. Problem is mathematically described, delay minima are searched and results are proved by simulations.

  10. 基于虚拟仪器的生理信号采集分析系统%Physiological signal acquisition and analysis system based on virtual instrument

    于璐; 索永宽; 沙宪政

    2011-01-01

    Objective To build a multi-channel physiological signal acquisition and analyais system using computer hardware and software technique, and provide the methods and instruments for related medical research. Methods The system was designed based on the virtual instrument platform(software: LabVIEW 8.2; hardware: physiological signal detection and analog digital conversion circuit), utilized several key techniques that included data acquisition card configuration, implementation of data collection, display, storage and playback, and control of data acquisition with software. In the part of system expansion,Pearson correlation between the current system and the reference system was performed, which was based on the cardiovascular parameters collected from 15 healthy volunteers. Results The system was well designed to implement the acquisition and procession of all kinds of physiological signals. In addition, the system was further expanded for the recogniLion and analysis of physiological signals. The detection results between the two systems were perfectly correlated, with heart rate r = 0.959 (P <0.001), mean arterial blood pressure r = 0.976(P < 0.001). stroke volume r = 0.877(P < 0.001), stroke index r = 0.785(P < 0.001)and arterial compliance r = 0.869 (P < 0001). Conclusion It is demonstrated that the system could be applied in all kinds of physiological signal acquisition and procession, and also in aome teaching areas, such as physiological function experiments and animal physiology experiments.%目的 利用计算机软硬件技术构建多通道生理信号采集分析系统,为医学相关研究提供方法 与工具.方法 在基于虚拟仪器的软硬件半台下(软件为LabVIEW 8.2,硬件为生理信号榆测电路和模/数转换电路)对系统进行设计,利用了数据采集(DAQ)卡配置方法 、DAQ显示存储回放的实现方法 及使用软件灵活地控制数据采集等关键技术.在系统扩展部分,利

  11. Performance confirmation data acquisition system

    As part of the Viability Assessment (VA) work, this QAP-3-9 document presents and evaluates a comprehensive set of viable concepts for collecting Performance Confirmation (PC) related data. The concepts include: monitoring subsurface repository air temperatures, humidity levels and gaseous emissions via the subsurface ventilation systems, and monitoring the repository geo-technical parameters and rock mass from bore-holes located along the perimeter main drifts and throughout a series of human-rated Observation Drifts to be located in a plane 25 meters above the plane of the emplacement drifts. A key element of this document is the development and analysis of a purposed multi-purpose Remote Inspection Gantry that would provide direct, real-time visual, thermal, and radiological monitoring of conditions inside operational emplacement drifts and close-up observations of in-situ Waste Packages. Preliminary finite-element analyses are presented that indicate the technological feasibility of operating an inspection gantry inside the operational emplacement drifts for short inspection missions lasting 2--3 hours. Overall reliability, availability, and maintainability of the PC data collection concepts are discussed. Preliminary concepts for PC data collection network are also provided

  12. Performance confirmation data acquisition system

    McAffee, D.A.; Raczka, N.T. [Yucca Mountain Project, Las Vegas, NV (United States)

    1997-12-31

    As part of the Viability Assessment (VA) work, this QAP-3-9 document presents and evaluates a comprehensive set of viable concepts for collecting Performance Confirmation (PC) related data. The concepts include: monitoring subsurface repository air temperatures, humidity levels and gaseous emissions via the subsurface ventilation systems, and monitoring the repository geo-technical parameters and rock mass from bore-holes located along the perimeter main drifts and throughout a series of human-rated Observation Drifts to be located in a plane 25 meters above the plane of the emplacement drifts. A key element of this document is the development and analysis of a purposed multi-purpose Remote Inspection Gantry that would provide direct, real-time visual, thermal, and radiological monitoring of conditions inside operational emplacement drifts and close-up observations of in-situ Waste Packages. Preliminary finite-element analyses are presented that indicate the technological feasibility of operating an inspection gantry inside the operational emplacement drifts for short inspection missions lasting 2--3 hours. Overall reliability, availability, and maintainability of the PC data collection concepts are discussed. Preliminary concepts for PC data collection network are also provided.

  13. Magnetic Field Response Measurement Acquisition System

    Woodard, Stanley E.; Taylor,Bryant D.; Shams, Qamar A.; Fox, Robert L.

    2007-01-01

    This paper presents a measurement acquisition method that alleviates many shortcomings of traditional measurement systems. The shortcomings are a finite number of measurement channels, weight penalty associated with measurements, electrical arcing, wire degradations due to wear or chemical decay and the logistics needed to add new sensors. Wire degradation has resulted in aircraft fatalities and critical space launches being delayed. The key to this method is the use of sensors designed as passive inductor-capacitor circuits that produce magnetic field responses. The response attributes correspond to states of physical properties for which the sensors measure. Power is wirelessly provided to the sensing element by using Faraday induction. A radio frequency antenna produces a time-varying magnetic field used to power the sensor and receive the magnetic field response of the sensor. An interrogation system for discerning changes in the sensor response frequency, resistance and amplitude has been developed and is presented herein. Multiple sensors can be interrogated using this method. The method eliminates the need for a data acquisition channel dedicated to each sensor. The method does not require the sensors to be near the acquisition hardware. Methods of developing magnetic field response sensors and the influence of key parameters on measurement acquisition are discussed. Examples of magnetic field response sensors and the respective measurement characterizations are presented. Implementation of this method on an aerospace system is discussed.

  14. An intelligent data acquisition system for fluid mechanics research

    Cantwell, E. R.; Zilliac, G.; Fukunishi, Y.

    1989-01-01

    This paper describes a novel data acquisition system for use with wind-tunnel probe-based measurements, which incorporates a degree of specific fluid dynamics knowledge into a simple expert system-like control program. The concept was developed with a rudimentary expert system coupled to a probe positioning mechanism operating in a small-scale research wind tunnel. The software consisted of two basic elements, a general-purpose data acquisition system and the rulebased control element to take and analyze data and supplying decisions as to where to measure, how many data points to take, and when to stop. The system was validated in an experiment involving a vortical flow field, showing that it was possible to increase the resolution of the experiment or, alternatively, reduce the total number of data points required, to achieve parity with the results of most conventional data acquisition approaches.

  15. Design of audio data acquisition system based on ARM and DSP%基于ARM与DSP的声频数据采集系统设计

    周静雷; 江浩; 乔站仙

    2012-01-01

    结合1个基于ARM与DSP双核架构的声频数据采集系统的开发,介绍了ARM和DSP之间基于HPI通信的接口设计以及A/D、D/A接口设计,说明了接口工作原理及相关配置.提出了一种声频数据采集方案,利用ARM实现控制与人机交互,用DSP做信号处理,给出了数据采集的系统框图和软件流程图.该方案可充分利用DSP的McASP接口实现高精度A/D、D/A转换,利用HPI主机并行接口实现ARM与DSP之间的快速数据传输,从而实现海量声频数据流的高效、实时传输.%According to an audio data acquisition system,this paper introduces the communication interface design on the basis of HPI between ARM and DSP,and A/CD/A converter design,describes the operating principle of interfaces and relevant configuration. A method of audio data acquisition is presented, control is based on ARM, DSP takes charge of signal processing,it provides the system chart of data acquisition and software flow chart. This design scheme can take full advantage of McASP interface to achieve high-precision AD & DA converter,and HPI interface is used to realize high speed data transfer between ARM and DSP, thereby achieving efficient and real-time transmission of huge amounts of audio data stream.

  16. The DISTO Data Acquisition System at SATURNE

    Maggiora, A

    1997-01-01

    The DISTO collaboration has built a large-acceptance magnetic spectrometer designed to provide broad kinematic coverage of multi-particle final states produced in $pp$ scattering. The spectrometer has been installed in the polarized proton beam of the Saturne accelerator in Saclay to study polarization observables in the $\\vec{p} p \\to p K^{+} \\vec{Y}$ ($Y = \\Lambda, and $\\rho$) in $pp$ collisions. The data acquisition system is based on a VME 68030 CPU running the OS/9 operating system, housed in a single VME crate together with the CAMAC interface, the triple port ECL memories, and four RISC R3000 CPU. The digitization of signals from the detectors is made by PCOS III and FERA front-end electronics. Data of several events belonging to a single Saturne extraction are stored in VME triple-port ECL memories using a hardwired fast sequencer. The buffer, optionally filtered by the RISC R3000 CPU, is recorded on a DLT cassette by DAQ CPU using the on-board SCSI interface during the acceleration cycle. Two UNIX wo...

  17. Embedded data acquisition system with MDSPlus

    Rajpal, Rachana, E-mail: rachana@ipr.res.in [Institute for Plasma Research, Gandhinagar, Gujarat (India); Patel, Jigneshkumar; Kumari, Praveena; Panchal, Vipul; Chattopadhyay, P.K.; Pujara, Harshad; Saxena, Y.C. [Institute for Plasma Research, Gandhinagar, Gujarat (India)

    2012-12-15

    This data acquisition system (DAS) is designed and developed to cater the increasing demand of Plasma Diagnostics for Aditya Tokamak as well as to support the basic physics research going on at Institute for Plasma Research. The main design criteria were to design a system with minimum resources and flexible to cater the needs of slow and fast diagnostic channels and can be easily integrated with the existing data acquisition system of Aditya Tokamak. The DAS is designed on embedded PC/104 platform. This is a multi channel system which supports standard features of commercially available DAS. The control and bus interface logic are implemented using Very High Speed Hardware Description Language (VHDL) on Complex Programmable Logic Device (CPLD). For Aditya Tokamak pulse experiment, the software application is designed such that the data is directly integrated to the MDSplus tree of Aditya DAS. The detailed hardware and software design, development and testing results will be discussed in the paper.

  18. Embedded data acquisition system with MDSPlus

    This data acquisition system (DAS) is designed and developed to cater the increasing demand of Plasma Diagnostics for Aditya Tokamak as well as to support the basic physics research going on at Institute for Plasma Research. The main design criteria were to design a system with minimum resources and flexible to cater the needs of slow and fast diagnostic channels and can be easily integrated with the existing data acquisition system of Aditya Tokamak. The DAS is designed on embedded PC/104 platform. This is a multi channel system which supports standard features of commercially available DAS. The control and bus interface logic are implemented using Very High Speed Hardware Description Language (VHDL) on Complex Programmable Logic Device (CPLD). For Aditya Tokamak pulse experiment, the software application is designed such that the data is directly integrated to the MDSplus tree of Aditya DAS. The detailed hardware and software design, development and testing results will be discussed in the paper.

  19. Design of High-Speed Data Acquisition System Based on FPGA%一种基于FPGA的高速数据采集系统设计

    徐萌萌; 刘晓娜; 陶灿辉; 丁力; 宋志平

    2013-01-01

    提出了一种基于FPGA的数据采集系统,并对系统的硬件电路、逻辑电路以及应用软件的设计过程作了详细的介绍.利用FPGA控制单元和USB传输模块,实现数据的高速采集、存储和传输.试验结果表明,该系统可以完成动态环境下实时数据采集、事后数据读取和处理,系统精度高、速度快、界面友好,具有较高的使用价值.%A data acquisition system based on FPGA is presented. The design process of hardware circuit, logic circuit and application software is introduced in detail. High-speed capability of data acquisition, data storage and transmission is implemented with FPGA control unit and USB transfer module. The experimental results show that this system can sample data on real time in dynamic environment and read data after reclaim, which has the advantages of high precision, high speed, friendly user interface and a high value in use.

  20. IT-based Value Creation in Serial Acquisitions

    Henningsson, Stefan; Yetton, Philip

    2013-01-01

    The extant research on post-acquisition IT integration analyzes how acquirers realize IT-based value in individual acquisitions. However, serial acquirers make 60% of acquisitions. These acquisitions are not isolated events, but are components in growth-by-acquisition programs. To explain how...... serial acquirers realize IT-based value, we integrate and model the findings on individual acquisitions from the extant literature, and extend that model to explain the effects of sequential acquisitions in a growth-by-acquisition strategy. This extended model, drawing on the Resource-Based Theory of...... strategy, comprises seven propositions that affect post-acquisition IT integration. The model proposes that successful acquisitions are contingent on the acquirer’s IT capabilities, business and IT alignment, and infrastructure scalability. We begin the process of validating this model by investigating a...

  1. A high-resolution TDC-based board for a fully digital trigger and data acquisition system in the NA62 experiment at CERN

    Pedreschi, Elena; Avanzini, Carlo; Galeotti, Stefano; Lamanna, Gianluca; Magazzu, Guido; Pinzino, Jacopo; Piandani, Roberto; Sozzi, Marco; Spinella, Franco; Venditti, Stefano

    2014-01-01

    A Time to Digital Converter (TDC) based system, to be used for most sub-detectors in the high-flux rare-decay experiment NA62 at CERN SPS, was built as part of the NA62 fully digital Trigger and Data AcQuisition system (TDAQ), in which the TDC Board (TDCB) and a general-purpose motherboard (TEL62) will play a fundamental role. While TDCBs, housing four High Performance Time to Digital Converters (HPTDC), measure hit times from sub-detectors, the motherboard processes and stores them in a buffer, produces trigger primitives from different detectors and extracts only data related to the lowest trigger level decision, once this is taken on the basis of the trigger primitives themselves. The features of the TDCB board developed by the Pisa NA62 group are extensively discussed and performance data is presented in order to show its compliance with the experiment requirements.

  2. Data Acquisition and Control Systems Laboratory

    Holland, Randy; Jensen, Scott; Burrel, Terrence; Spooner, Richard

    2002-01-01

    The Data Acquisition and Control Systems (DACS) Laboratory is a facility at Stennis Space Center that provides an off test-stand capability to develop data-acquisition and control systems for rocket-engine test stands. It is also used to train new employees in state-of-the-art systems, and provides a controlled environment for troubleshooting existing systems, as well as the ability to evaluate the application of new technologies and process improvements. With the SSC propulsion testing schedules, without the DACS Laboratory, it would have been necessary to perform most of the development work on actual test systems, thereby subjecting both the rocket-engine testing and development programs to substantial interference in the form of delays, restrictions on modifications of equipment, and potentially compromising software configuration control. The DACS Laboratory contains a versatile assortment of computer hardware and software, digital and analog electronic control and data-acquisition equipment, and standard electronic bench test equipment and tools. Recently completed Control System development and software verification projects include support to the joint NASA/Air Force Integrated Powerhead Demonstration (IPD) LOX & LH2 PreBurner and Turbopump ground testing programs. In other recent activities, the DACS Laboratory equipment and expertise have supported the off-stand operation of high-pressure control valves to correct valve leak problems prior to installation on the test stand. Future plans include expanding the Laboratory's capabilities to provide cryogenic control valve characterization prior to installation, thereby reducing test stand activation time.

  3. A magnetic control system for attitude acquisition

    Stickler, A. C.

    1972-01-01

    A spacecraft magnetic attitude acquisition system is reported that is capable of automatically despinning a satellite from arbitrarily high rates around any axis and provides terminal orientation that makes capture by conventional fine control attitude control systems routine. The system consists of a 3-axis magnetometer, a set of 3 orthogonal magnets, and appropriate control logic. A well-configured system results in despin times of the order of 5 orbits per rpm for spacecraft in low earth orbits. Following despin, terminal orientation is achieved after another one to three orbits, depending on the capture range of the associated fine control system.

  4. An integrated AMLAB-based system for acquisition, processing and analysis of evoked EMG and mechanical responses of upper limb muscles.

    Jaberzadeh, S; Nazeran, H; Scutter, S; Warden-Flood, A

    2003-06-01

    An integrated multi-channel AMLAB-based data acquisition, processing and analysis system has been developed to simultaneously display, quantify and correlate electromyographic (EMG) activity, resistive torque, range of motion, and pain responses evoked by passive elbow extension in humans. The system was designed around the AMLAB analog modules and software objects called ICAMs. Each channel consisted of a time and frequency domain block, a torque and angle measurement block, an experiment number counter block and a data storage and retrieval block. The captured data in each channel was used to display and quantify: raw EMG, rectified EMG, smoothed rectified EMG, root-mean-squared EMG, fast Fourier transformed (FFT) EMG, and normalized power spectrum density (NPSD) of EMG. Torque and angle signals representing elbow extension measured by a KIN-COM dynamometer during neural tension testing, as well as signals from an electronic pain threshold marker were interfaced to AMLAB and presented in one integrated display. Although this system has been designed to specifically study the patterns and nature of evoked motor responses during clinical investigation of carpal tunnel syndrome (CTS) patients, it could equally well be modified to allow acquisition, processing and analysis of EMG signals in other studies and applications. In this paper, we present for the first time the steps involved in the design, implementation and testing of an integrated AMLAB-based system to study and analyse the mechanically evoked electromyographic, torque and ROM signals and correlate various levels of pain to these signals. We also present samples of resistive torque ROM, and raw and processed EMG recordings during passive elbow extension. PMID:12956188

  5. Microcomputer-controlled ultrasonic data acquisition system

    The large volume of ultrasonic data generated by computer-aided test procedures has necessitated the development of a mobile, high-speed data acquisition and storage system. This approach offers the decided advantage of on-site data collection and remote data processing. It also utilizes standard, commercially available ultrasonic instrumentation. This system is controlled by an Intel 8080A microprocessor. The MCS80-SDK microcomputer board was chosen, and magnetic tape is used as the storage medium. A detailed description is provided of both the hardware and software developed to interface the magnetic tape storage subsystem to Biomation 8100 and Biomation 805 waveform recorders. A boxcar integrator acquisition system is also described for use when signal averaging becomes necessary. Both assembly language and machine language listings are provided for the software

  6. VME data acquisition system. Interactive software for the acquisition, display and storage of one or two dimensional spectra

    The development and construction of a complete data acquisition system for nuclear physics applications, are described. The system is based on the VME bus and the 16/32 bits microprocessor. The data acquisition system enables the obtention of line spectra, involving one or two parameters, and the simultaneous storage of events in a magnetic tape. The analysis and the description of the data acquisition software, the experimental spectra display and saving on magnetic systems are given. Pascal and Assembler are used. The development of cards, for the standard VME and electronic equipment interfaces, is performed

  7. 48 CFR 1401.7001-4 - Acquisition performance measurement systems.

    2010-10-01

    ... measurement systems. 1401.7001-4 Section 1401.7001-4 Federal Acquisition Regulations System DEPARTMENT OF THE... Acquisition performance measurement systems. (a) The acquisition performance measurement system is a three... systems. (b) HCA's are responsible for ensuring contracting activity compliance with law and...

  8. Wavelets for full reconfigurable ECG acquisition system

    Morales, D. P.; García, A.; Castillo, E.; Meyer-Baese, U.; Palma, A. J.

    2011-06-01

    This paper presents the use of wavelet cores for a full reconfigurable electrocardiogram signal (ECG) acquisition system. The system is compound by two reconfigurable devices, a FPGA and a FPAA. The FPAA is in charge of the ECG signal acquisition, since this device is a versatile and reconfigurable analog front-end for biosignals. The FPGA is in charge of FPAA configuration, digital signal processing and information extraction such as heart beat rate and others. Wavelet analysis has become a powerful tool for ECG signal processing since it perfectly fits ECG signal shape. The use of these cores has been integrated in the LabVIEW FPGA module development tool that makes possible to employ VHDL cores within the usual LabVIEW graphical programming environment, thus freeing the designer from tedious and time consuming design of communication interfaces. This enables rapid test and graphical representation of results.

  9. Smart data acquisition system for utilities metering

    Ileana, I.; Risteiu, M.; Tulbure, A.; Rusu, M.

    2009-01-01

    The paper approaches the task of automatically reading and recognition of registered data on the utility meters of the users and is a part of a more complex project of our team concerning the remote data acquisition from industrial processes. A huge amount of utility meters in our country is of mechanical type without remote acquiring facilities and as an intermediate solution we propose an intelligent optical acquisition system which will store the read values in desktop and mobile devices. The main requirements of such a system are: portability, data reading accuracy, fast processing and energy independence. The paper analyses several solutions (including Artificial Neural Networks approach) tested by our team and present the experimental results and our conclusions.

  10. A VMEbus general-purpose data acquisition system

    We present a general-purpose, VMEbus based, multiprocessor data acquisition and monitoring system. Events, handled by a master CPU, are kept at the disposal of data storage and monitoring processes which can run on distinct processors. They access either the complete set of data or a fraction of them, minimizing the acquisition dead-time. The system is built with the VxWorks 5.0 real time kernel to which we have added device drivers for data acquisition and monitoring. The acquisition is controlled and the data are displayed on a workstation. The user interface is written in C++ and re-uses the classes of the Interviews and the NIH libraries. The communication between the control workstation and the VMEbus processors is made through SUN RPCs on an Ethernet link. The system will be used for, CAMAC based, data acquisition for nuclear physics experiments as well as for the VXI data taking with the 4π configuration (100 neutron detectors) of the Brussels-Caen-Louvian-Strasbourg DEMON collaboration. (author)

  11. Acquisition and treatment systems for experimental data

    The acquisition and treatment systems for experimental data has been conceived to give a response to experimental requirements in a research reactor such OSIRIS. Its objective is to acquire and treat the ensemble of informations coming from one or many experiences, to archive useful data for an ulterior treatment and to give at the experimentator a tool ensemble for a better track of his experience. Its main characteristics are given in this text

  12. 基于NI6009的ECG采集系统设计%Design of ECG signal acquisition system based on NI6009

    胡晓; 杜亮; 蔡燕玲

    2012-01-01

    为了简单而有效地采集ECG信号,文章介绍一种使用NI6009数据采集卡的ECG信号采集系统.该系统由传感器、预处理硬件电路、采集卡和计算机4个部分组成.由NI6009数据采集卡实现外部硬件电路与计算机内部分析系统的互联.通过NI6009电脑能够灵活地选择ECG信号的采集通道、调整采样频率和量化比特数.通过ECG信号采集实验表明,该系统是一个简单有效的ECG信号采集系统.%In order to effectively and simply acquire ECG signal,this paper introduced an acquisition system based on NI6009 acquisition card.The system was composed of ECG sensor,preprocessing hardware circuit,NI6009 and computer.It was by NI6009 that ECG analysis system within computer was able to interconnect with hardware circuit outside the computer.In ECG signal's analysis system,it was flexible to choose acquiring ECG signal's channel and to adjust sampling frequency and quantization bit number through NI6009.During ECG signal was acquired,this scheme can easily achieve better effect.

  13. Proportional-Integral-Derivative (PID) Temperature Control and Data Acquisition System for Faraday Filter based Sodium Spectrometer

    Semerjyan, Vardan; Yuan, Tao

    2011-04-01

    Sodium (Na) Faraday filters based spectrometer is a relatively new instrument to study sodium nightglow as well as sodium and oxygen chemistry in the mesopause region. Successful spectrometer measurement demands highly accurate control of filter temperature. The ideal, long-term operation site for the Na spectrometer is an isolated location with minimum nocturnal sky background. Thus, the remote control of the filter temperature is a requirement for such operation, whereas current temperature controllers can only be operated manually. The proposed approach is aimed to not only enhance the temperature control, but also achieve spectrometer's remote and autonomous operation. In the meantime, the redesign should relief the burden of the cost for multi temperature controllers. The program will give to the operator flexibility in setting the operation temperatures of the Faraday filters, monitoring the temperature variations, and logging the data during the operation. Research will make diligent efforts to attach preliminary data analysis subroutine to the main control program. The real-time observation results will be posted online after the observation is completed. This approach also can be a good substitute for the temperature control system currently used to run the Lidar system at Utah State University (USU).

  14. ACP/R3000 processors in data acquisition systems

    We describe ACP/R3000 processor based data acquisition systems for high energy physics. This VME bus compatible processor board, with a computational power equivalent to 15 VAX 11/780s or better, contains 8 Mb of memory for event buffering and has a high speed secondary bus that allows data gathering from front end electronics. 2 refs., 3 figs

  15. Maintenance Information and Data Acquisition System (MIDAS)

    Stansberry, C.T.; Odom, S.M.; Martin, C.D. (Oak Ridge National Lab., TN (USA))

    1989-09-01

    The Maintenance Information Data Acquisition System (MIDAS) is an innovative program to combine new and existing programs into one unique system that allows quick response to a wide range of management information programs, leading to more effective administration of the Maintenance Management Department of the Instrumentation and Controls Division at Oak Ridge National Laboratory. The goal of this system is to provide rapid access to broad areas of management programs as easily as possible. Doing so with the touch of a single computer key thus lives up to the Midas legend, the Golden Touch.''

  16. Data-acquisition method for multichannel systems

    An economical method is described for data acquisition from multichannel systems such as multiwire chambers in which the channels are combined into a matrix via analog adders and analog to digital converters. An implementation for a 1024-channel system was considered. The number of channels interrogated was reduced to 127. Simulation shows that the input data may be recovered completely if not more than 10 channels have operated. Recovery performance is shown as a function of number of triggered channels in a 1024-channel systems for two groups and three groups where the numbers on the curves are the tolerances in comparing the signal amplitudes in matrix projections

  17. Neutral particle beam distributed data acquisition system

    Daly, R.T.; Kraimer, M.R.; Novick, A.H.

    1987-01-01

    A distributed data acquisition system has been designed to support experiments at the Argonne Neutral Particle Beam Accelerator. The system uses a host VAXstation II/GPX computer acting as an experimenter's station linked via Ethernet with multiple MicroVAX IIs and rtVAXs dedicated to acquiring data and controlling hardware at remote sites. This paper describes the hardware design of the system, the applications support software on the host and target computers, and the real-time performance.

  18. Embedded data acquisition system for neutron monitors

    This article presents the design and implementation of a new data acquisition system to be used as replacement for the old ones that have been in use with neutron monitors for the last decades and, which are eventually becoming obsolete. This new system is also intended to be used in new installations, enabling these scientific instruments to use today's communication networks to send data and receive commands from the operators. This system is currently running in two stations: KIEL2, in the Christian-Albrechts-Universität zu Kiel, Kiel, Germany, and CALMA, in the Castilla-La Mancha Neutron Monitor, Guadalajara, Spain

  19. Data Acquisition and Compression System Based on FPGA and DSP%基于FPGA和DSP的数据采集与压缩系统∗

    连猛; 丑修建; 李庆; 崔丽杰

    2015-01-01

    The test of each module function which is applied to the body of the arrow,has a special technical index for the data acquisition,for examples,the requirement of reading the data of large capacity,the error rate is extreme-ly low. By referring to the existing data collection and compression technology designs the data acquisition and com-pression system which bases on FPGA and DSP. This system can realize the acquisition and processing of 12 analog signals,the sample rate is 324 ksample/s. To compress the data through using DSP chip,the compression removal rate can reach 75%. According to the data error problems,this system comes up with the design of data stream frame transmission. Finally,the tests have been carried out,the experiments show that systematic work is stable,the system solves the problem of the unity of the performance,power consumption and speed.%应用于箭体各模块功能测试,对数据采集有特殊的技术指标,要求系统能读取大容量数据、误码率极低。基于此参考已有的压缩技术,设计了基于FPGA和DSP的数据采集与压缩系统,能够实现12路模拟信号的采集与处理,采样率为324 ksample/s。采用DSP对数据进行压缩,压缩去除率达到75%。针对采集数据误码问题,提出对数据分帧传输的设计方案。最后对系统进行了测试验证,实验表明系统性工作稳定、各项技术指标均达到要求。

  20. Based on the SOA fire integrated maintenance information acquisition system design%基于SOA的消防一体化运维信息采集系统

    吴君

    2013-01-01

    从消防信息化系统的基本结构出发,分析了运维信息采集系统的需求,采用SOA技术设计了信息采集系统的架构,探讨了信息采集中的几个关键问题.%With the rapid development of information construction of fire,operation platform construction is becoming more and more important.Maintenance information acquisition system is playing a role in the foundation of operation platform.This article from the basic structure of fire information system,analyzes the operation information acquisition system needs,the use of SOA technology to design a information acquisition system,discusses some key problems in information collection.

  1. Data-acquisition systems for the present and the future

    Basic components of today's acquisition systems are surveyed. These include front-end tools such as microprocessors, programmable controllers, and CAMAC interfaces. Some key concepts in large central real-time systems are examined: Hardware and Software architecture, and data base structure. Some trends in present data acquisition system design are analyzed, including increasing distribution of system functions and expansion to hierarchical multi-processor netowrks. With the evolution of microprocessors, front-end intelligence is growing into front-end computing power. Real-time host systems are becoming increasingly sophisticated human interface and data base management tools, with increasingly complex operating systems, and increasing amounts of memory, mass storage, and computing power. And the ultimate analysis of plasma data is becoming increasingly sophisticated

  2. Technology-based Mergers and Acquisitions

    Wang, Daojuan; Moini, Hamid

    2014-01-01

    The purpose of this chapter is to provide an updated review of what is known about the performance of technology-based mergers and acquisitions (TBM&As) and their determinants. This review brings together papers published from 1990 to 2012 in top-rated academic journals within nearly all fields of...... business, thus providing a comprehensive assessment of TBM&A research. The review follows a systematic approach using selected elements from the review methodology. We identified and examined the following: research questions, research designs, research contexts, data and methods, performance measures, and...

  3. Real-Time Wireless Data Acquisition System

    Valencia, Emilio J.; Perotti, Jose; Lucena, Angel; Mata, Carlos

    2007-01-01

    Current and future aerospace requirements demand the creation of a new breed of sensing devices, with emphasis on reduced weight, power consumption, and physical size. This new generation of sensors must possess a high degree of intelligence to provide critical data efficiently and in real-time. Intelligence will include self-calibration, self-health assessment, and pre-processing of raw data at the sensor level. Most of these features are already incorporated in the Wireless Sensors Network (SensorNet(TradeMark)), developed by the Instrumentation Group at Kennedy Space Center (KSC). A system based on the SensorNet(TradeMark) architecture consists of data collection point(s) called Central Stations (CS) and intelligent sensors called Remote Stations (RS) where one or more CSs can be accommodated depending on the specific application. The CS's major function is to establish communications with the Remote Stations and to poll each RS for data and health information. The CS also collects, stores and distributes these data to the appropriate systems requiring the information. The system has the ability to perform point-to-point, multi-point and relay mode communications with an autonomous self-diagnosis of each communications link. Upon detection of a communication failure, the system automatically reconfigures to establish new communication paths. These communication paths are automatically and autonomously selected as the best paths by the system based on the existing operating environment. The data acquisition system currently under development at KSC consists of the SensorNet(TradeMark) wireless sensors as the remote stations and the central station called the Radio Frequency Health Node (RFHN). The RFF1N is the central station which remotely communicates with the SensorNet(TradeMark) sensors to control them and to receive data. The system's salient feature is the ability to provide deterministic sensor data with accurate time stamps for both time critical and non

  4. FPGA high-speed data acquisition system based on USB communication%基于USB通信的FPGA高速数据采集系统

    刘吉; 杨德伟; 文怀涛; 刘超

    2011-01-01

    A FPGA high-speed data acquisition system based on USB communication is designed to solve the problems of high-speed data acquisition and transmission. The system takes FPGA as a controlling core to implement three functions of A/D control, data buffering dual-port RAM and CY7C68013A control. The programme is compiled with Verilog HDL language and ISE software to control multi-AD7356 to acquire data, store the acquired data in dual-port RAM, and control CY7C68013A to upload data to PC via USB. The experiment testifies that the system works well when CY7C68013A's trans-mission velocity is set as 16. 7 Mb/s.%为了解决高速数据采集以及数据传输问题,设计了基于USB通信的FPGA高速数据采集系统.方案以FPGA为控制核心,实现A/D控制、数据缓存双口RAM和控制CY7C68013A三个功能.系统采用Verilog HDL语言,通过ISE软件编程控制多个AD7356同时进行数据采集,将采集所得数据存入双口RAM,控制CY7C68013A将数据通过USB总线上传到PC机.系统进行实测实验表明,在CY7C68013A设定为16.7 Mb/s的传输速率下,系统工作正常.

  5. FPGA based on the image acquisition system design%基于FPGA的图像采集系统的设计

    潘明; 陈元枝; 李强

    2012-01-01

    This paper is based on FPGA and CMOS image sensor image acquisition and processing system. After the system on the electricity, FPG A initializes the internal registers of CMOS image sensors by SCCB bus interface to set the CMOS image at work. Then according to the synchronization signal, FPGA collects of valid data of the original image. The FPGA chooses the right algorithm of color to recover for the traditional RGB format of digital image data and a frame for image data will turn to external storage SDRAM. At last the image data will be sent forward to PC by the UART for processing or displaying at real time. The design of acquisition system can work normally,so this method is reliable and effective.%研究一种基于FPGA和CMOS图像传感器的图像采集处理系统的实现方案.FPGA芯片的I/O口模拟SCCB串线总线写CMOS传感器中的寄存器,来设置CMOS图像传感器的工作方式,然后FPGA根据同步信号采集有效原始图像数据,在FPGA内还原出传统数字RGB格式图像数据,接着以帧为单位将图像数据转存到外部存储器SDRAM中,最后通过UART串口将图像数据转发到PC,进行实时处理或显示.所设计的采集系统能够正常工作,介绍的设计方案可靠有效.

  6. GNSS array-based acquisition: theory and implementation

    Arribas Lázaro, Javier

    2012-01-01

    This Dissertation addresses the signal acquisition problem using antenna arrays in the general framework of Global Navigation Satellite Systems (GNSS) receivers. The term GNSS classi es those navigation systems based on a constellation of satellites, which emit ranging signals useful for positioning. Although the American GPS is already available, which coexists with the renewed Russian Glonass, the forthcoming European contribution (Galileo) along with the Chinese Compass will be operative s...

  7. GNU/Linux driver development for embedded data acquisition systems

    Adrian Iglesias-Benitez; Abel Toledano-Hernández; Dainelys Toledo-Enriquez; Jorge Gentile MartínezCasado; Dennys Julián González-Aguilera

    2014-01-01

    The present work focuses on the development of a driver to handle a data acquisition system controlled by the MINI2440 single board computer based on the S3C2440 RISC processor from Samsung and equipped with an ARM920T 32 bits kernel, in which an embedded GNU/Linux operating system is executed. A global vision of the system is presented and the hardware and software components are described. Emphasis is made in the ...

  8. A simulation of data acquisition system for SSC experiments

    Watase, Y.; Ikeda, H. [National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki (Japan)

    1989-04-01

    A simulation on some parts of the data acquisition system was performed using a general purpose simulation language GPSS. Several results of the simulation are discussed for the data acquisition system for the SSC experiment.

  9. Implementation of High Speed Distributed Data Acquisition System

    Raju, Anju P.; Sekhar, Ambika

    2012-09-01

    This paper introduces a high speed distributed data acquisition system based on a field programmable gate array (FPGA). The aim is to develop a "distributed" data acquisition interface. The development of instruments such as personal computers and engineering workstations based on "standard" platforms is the motivation behind this effort. Using standard platforms as the controlling unit allows independence in hardware from a particular vendor and hardware platform. The distributed approach also has advantages from a functional point of view: acquisition resources become available to multiple instruments; the acquisition front-end can be physically remote from the rest of the instrument. High speed data acquisition system transmits data faster to a remote computer system through Ethernet interface. The data is acquired through 16 analog input channels. The input data commands are multiplexed and digitized and then the data is stored in 1K buffer for each input channel. The main control unit in this design is the 16 bit processor implemented in the FPGA. This 16 bit processor is used to set up and initialize the data source and the Ethernet controller, as well as control the flow of data from the memory element to the NIC. Using this processor we can initialize and control the different configuration registers in the Ethernet controller in a easy manner. Then these data packets are sending to the remote PC through the Ethernet interface. The main advantages of the using FPGA as standard platform are its flexibility, low power consumption, short design duration, fast time to market, programmability and high density. The main advantages of using Ethernet controller AX88796 over others are its non PCI interface, the presence of embedded SRAM where transmit and reception buffers are located and high-performance SRAM-like interface. The paper introduces the implementation of the distributed data acquisition using FPGA by VHDL. The main advantages of this system are high

  10. Research on Power Distributed Data Acquisition System with Integration Mode of City and Counties Based on D5000 System%地县一体化分布式数据采集系统

    晏亮; 阎博; 丁盛舟; 郭子明; 温昭琦; 张昊; 王鑫; 李新鹏

    2015-01-01

    针对电网调度技术支持系统的分布式一体化运行需求,在分析传统数据采集系统和分布式一体化技术的基础上,设计了一套基于D5000系统(智能电网调度技术支持系统)的地县一体化分布式数据采集系统。该系统通过采用分布式数据采集系统负载均衡运行管理技术,基于公共信息模型( Common Information Model, CIM)的高速模型交换格式CIM/E的模型维护及同步技术,以及分布式数据采集实时数据共享和监视技术,提升了数据采集的采集处理和调度运行能力,保证地县一体化分布式系统的可靠性和高效性,从而满足未来大电网运行对数据采集的要求。%According to the operation requirements of distributed integrated technology supporting system of power grid scheduling system, based on the analysis of the traditional technology of data acquisition system and distributed integrated technology, we design a power distributed data acquisition system with integration mode based on D5000 system. This system uses a distributed data acquisition system of load balancing operation and management technology, the CIM/E model maintenance and synchronization tech-nology and distributed data acquisition sharing and data monitoring technology, enhancing the processing ability of data acquisition and operation, ensuring the reliability of the integration of distributed system and efficiency of city and counties, and meeting the needs of data acquisition of large power grid in the future.

  11. Context-specific comparison of sleep acquisition systems in Drosophila

    David S. Garbe

    2015-11-01

    Full Text Available Sleep is conserved across phyla and can be measured through electrophysiological or behavioral characteristics. The fruit fly, Drosophila melanogaster, provides an excellent model for investigating the genetic and neural mechanisms that regulate sleep. Multiple systems exist for measuring fly activity, including video analysis and single-beam (SB or multi-beam (MB infrared (IR-based monitoring. In this study, we compare multiple sleep parameters of individual flies using a custom-built video-based acquisition system, and commercially available SB- or MB-IR acquisition systems. We report that all three monitoring systems appear sufficiently sensitive to detect changes in sleep duration associated with diet, age, and mating status. Our data also demonstrate that MB-IR detection appeared more sensitive than the SB-IR for detecting baseline nuances in sleep architecture, while architectural changes associated with varying life-history and environment were generally detected across all acquisition types. Finally, video recording of flies in an arena allowed us to measure the effect of ambient environment on sleep. These experiments demonstrate a robust effect of arena shape and size as well as light levels on sleep duration and architecture, and highlighting the versatility of tracking-based sleep acquisition. These findings provide insight into the context-specific basis for choosing between Drosophila sleep acquisition systems, describe a novel cost-effective system for video tracking, and characterize sleep analysis using the MB-IR sleep analysis. Further, we describe a modified dark-place preference sleep assay using video tracking, confirming that flies prefer to sleep in dark locations.

  12. SeaBuoySoft – an On-line Automated Windows based Ocean Wave height Data Acquisition and Analysis System for Coastal Field’s Data Collection

    P.H.Tarudkar

    2014-12-01

    Full Text Available Measurement of various hydraulic parameters such as wave heights for the research and the practical purpose in the coastal fields is one of the critical and challenging but equally important criteria in the field of ocean engineering for the design and the development of hydraulic structures such as construction of sea walls, break waters, oil jetties, fisheries harbors, all other structures, and the ships maneuvering, embankments, berthing on jetties. This paper elucidates the development of “SeaBuoySoft online software system for coastal field‟s wave height data collection” for the coastal application work. The system could be installed along with the associated hardware such as a Digital Waverider Receiver unit and a Waverider Buoy at the shore. The ocean wave height data, transmitted by wave rider buoy installed in the shallow/offshore waters of sea is received by the digital waverider receiver unit and it is interfaced to the SeaBuoySoft software. The design and development of the software system has been worked out in-house at Central Water and Power Research Station, Pune, India. The software has been developed as a Windows based standalone version and is unique of its kind for the reception of real time ocean wave height data, it takes care of its local storage of wave height data for its further analysis work as and when required. The system acquires real time ocean wave height data round the clock requiring no operator intervention during data acquisition process on site.

  13. AZ-101 Mixer Pump Demonstration Data Acquisition System and Gamma Cart Data Acquisition Control System Software Configuration Management Plan

    This Software Configuration Management Plan (SCMP) provides the instructions for change control of the AZ1101 Mixer Pump Demonstration Data Acquisition System (DAS) and the Sludge Mobilization Cart (Gamma Cart) Data Acquisition and Control System (DACS)

  14. Automated control and data acquisition system for lithium-ion accumulators test bench

    Mizrah, E. A.; Balakirev, R. V.; Shtabel, N. V.

    2015-10-01

    In the article authors describe architecture of an automated data acquisition system for lithium ion accumulators lifetime test bench. The system is based on high performance data acquisition modules and allows acquisition of data in the process of simultaneous testing of 12 accumulators, including current, voltage and temperature of each accumulator. LabView based software is used to control testing, registration of data and loading of test program into system modules.

  15. Terminology-Based Approach: Knowledge Acquisition and Integration in Healthcare

    Subiksha.K.P

    2012-07-01

    Full Text Available Healthcare organizations are increasingly choosing the Knowledge Management Systems for clinical use, which have been established in technical support organizations for several years. Technical support organization can make use of its Knowledge Management System to meets its customer needs using its infrastructure and established processes. Success of Knowledge Management System in a healthcare organization mainly depends on the practice of healthcare professionals. Knowledge acquisition is very vital in healthcare than the application in technical support. The aim is to provide efficient access to heterogeneous biological textual data and databases, enabling users to integrate a wide range of textual and non-textual resources effortlessly. The main objective of the system is to make easier knowledge acquisition through query answering against XML-based documents in Healthcare specifically in the domain of molecular biology.

  16. Scalable multichannel MRI data acquisition system.

    Bodurka, Jerzy; Ledden, Patrick J; van Gelderen, Peter; Chu, Renxin; de Zwart, Jacco A; Morris, Doug; Duyn, Jeff H

    2004-01-01

    A scalable multichannel digital MRI receiver system was designed to achieve high bandwidth echo-planar imaging (EPI) acquisitions for applications such as BOLD-fMRI. The modular system design allows for easy extension to an arbitrary number of channels. A 16-channel receiver was developed and integrated with a General Electric (GE) Signa 3T VH/3 clinical scanner. Receiver performance was evaluated on phantoms and human volunteers using a custom-built 16-element receive-only brain surface coil array. At an output bandwidth of 1 MHz, a 100% acquisition duty cycle was achieved. Overall system noise figure and dynamic range were better than 0.85 dB and 84 dB, respectively. During repetitive EPI scanning on phantoms, the relative temporal standard deviation of the image intensity time-course was below 0.2%. As compared to the product birdcage head coil, 16-channel reception with the custom array yielded a nearly 6-fold SNR gain in the cerebral cortex and a 1.8-fold SNR gain in the center of the brain. The excellent system stability combined with the increased sensitivity and SENSE capabilities of 16-channel coils are expected to significantly benefit and enhance fMRI applications. PMID:14705057

  17. Data acquisition system of Moller polarimeter hall a Jefferson lab

    The structure, parameters and test results of a new data acquisition system for Moller polarimeter based on flash- ADC are presented. Flash-ADC is electronic module in VME format that consists of high-speed multichannel ADC piped type and FPGA unit on board. The use of flash-ADC has a lot of advantages: reduce of cable interconnections, events registration with higher rate, considerable decreases of system deadtime and, as result, the accuracy of polarization measurements is increases.

  18. Reducing acquisition risk through integrated systems of systems engineering

    Gross, Andrew; Hobson, Brian; Bouwens, Christina

    2016-05-01

    In the fall of 2015, the Joint Staff J7 (JS J7) sponsored the Bold Quest (BQ) 15.2 event and conducted planning and coordination to combine this event into a joint event with the Army Warfighting Assessment (AWA) 16.1 sponsored by the U.S. Army. This multipurpose event combined a Joint/Coalition exercise (JS J7) with components of testing, training, and experimentation required by the Army. In support of Assistant Secretary of the Army for Acquisition, Logistics, and Technology (ASA(ALT)) System of Systems Engineering and Integration (SoSE&I), Always On-On Demand (AO-OD) used a system of systems (SoS) engineering approach to develop a live, virtual, constructive distributed environment (LVC-DE) to support risk mitigation utilizing this complex and challenging exercise environment for a system preparing to enter limited user test (LUT). AO-OD executed a requirements-based SoS engineering process starting with user needs and objectives from Army Integrated Air and Missile Defense (AIAMD), Patriot units, Coalition Intelligence, Surveillance and Reconnaissance (CISR), Focused End State 4 (FES4) Mission Command (MC) Interoperability with Unified Action Partners (UAP), and Mission Partner Environment (MPE) Integration and Training, Tactics and Procedures (TTP) assessment. The SoS engineering process decomposed the common operational, analytical, and technical requirements, while utilizing the Institute of Electrical and Electronics Engineers (IEEE) Distributed Simulation Engineering and Execution Process (DSEEP) to provide structured accountability for the integration and execution of the AO-OD LVC-DE. As a result of this process implementation, AO-OD successfully planned for, prepared, and executed a distributed simulation support environment that responsively satisfied user needs and objectives, demonstrating the viability of an LVC-DE environment to support multiple user objectives and support risk mitigation activities for systems in the acquisition process.

  19. Development of the data acquisition system 'MORAINE'

    This publication presents the software development of the data acquisition system 'MORAINE'. The distributed multiprocessor system is designed for the spectrometer SPHERE. The system consists of three VME processor modules, specialized FASTBUS modules, three personal computers (IBM PC) type networked with local Ethernet. The software is developed for three VME processor modules. It controls the reading of event fragments into VME processor modules and uses data block transfer via direct memory access, reconstructs the events, transfers data into the local network for on-line analysis and records data on external media for OFF-line analysis. The usage of the distributed computer system allows one to duplicate the efficiency of the spectrometer due to parallel reading event fragments. (author)

  20. An Effective 3D Ear Acquisition System.

    Yahui Liu

    Full Text Available The human ear is a new feature in biometrics that has several merits over the more common face, fingerprint and iris biometrics. It can be easily captured from a distance without a fully cooperative subject. Also, the ear has a relatively stable structure that does not change much with the age and facial expressions. In this paper, we present a novel method of 3D ear acquisition system by using triangulation imaging principle, and the experiment results show that this design is efficient and can be used for ear recognition.

  1. An Effective 3D Ear Acquisition System.

    Liu, Yahui; Lu, Guangming; Zhang, David

    2015-01-01

    The human ear is a new feature in biometrics that has several merits over the more common face, fingerprint and iris biometrics. It can be easily captured from a distance without a fully cooperative subject. Also, the ear has a relatively stable structure that does not change much with the age and facial expressions. In this paper, we present a novel method of 3D ear acquisition system by using triangulation imaging principle, and the experiment results show that this design is efficient and can be used for ear recognition. PMID:26061553

  2. A tomograph VMEbus parallel processing data acquisition system

    This paper describes a VME based data acquisition system suitable for the development of Positron Volume Imaging tomographs which use 3-D data for improved image resolution over slice-oriented tomographs. The data acquisition must be flexible enough to accommodate several 3-D reconstruction algorithms; hence, a software-based system is most suitable. Furthermore, because of the increased dimensions and resolution of volume imaging tomographs, the raw data event rate is greater than that of slice-oriented machines. These dual requirements are met by our data acquisition systems. Flexibility is achieved through an array of processors connected over a VMEbus, operating asynchronously and in parallel. High raw data throughput is achieved using a dedicated high speed data transfer device available for the VMEbus. The device can attain a raw data rate of 2.5 million coincidence events per second for raw events per second for raw events which are 64 bits wide. Real-time data acquisition and pre-processing requirements can be met by about forty 20 MHz Motorola 68020/68881 processors

  3. Data acquisition and instrument control system for neutron spectrometers

    S S Naik; Ismat Kotwal; R M Chandak; V G Gaonkar

    2004-08-01

    A personal computer (PC)-based data acquisition and instrument control system has been developed for neutron spectrometers in Dhruva reactor hall and Guide Tube laboratory. Efforts have been made to make the system versatile so that it can be used for controlling various neutron spectrometers using single end-on detector in step scan mode. Commercially available PC add-on cards have been used for input–output and timer-counter operations. An interface card and DC motor driver card have been developed indigenously. Software for the system has been written in Visual C++ language using MS Windows operating system. This data acquisition and instrument control system is successfully controlling four spectrometers at Dhruva reactor.

  4. Human Robotic Systems (HRS): Robotic ISRU Acquisition Element

    National Aeronautics and Space Administration — During 2014, the Robotic ISRU Resource Acquisition project element will develop two technologies:Exploration Ground Data Systems (xGDS)Sample Acquisition on...

  5. Seizure Onset Detection based on a Uni- or Multi-modal Intelligent Seizure Acquisition (UISA/MISA) System

    Conradsen, Isa; Beniczky, Sándor; Wolf, Peter;

    2010-01-01

    algorithm on motion data is extracting features as “log-sum” measures of discrete wavelet components. Classification into the two groups “seizure” versus “nonseizure” is made based on the support vector machine (SVM) algorithm. The algorithm performs with a sensitivity of 91-100%, a median latency of 1...

  6. Geofencing-Based Localization for 3d Data Acquisition Navigation

    Nakagawa, M.; Kamio, T.; Yasojima, H.; Kobayashi, T.

    2016-06-01

    Users require navigation for many location-based applications using moving sensors, such as autonomous robot control, mapping route navigation and mobile infrastructure inspection. In indoor environments, indoor positioning systems using GNSSs can provide seamless indoor-outdoor positioning and navigation services. However, instabilities in sensor position data acquisition remain, because the indoor environment is more complex than the outdoor environment. On the other hand, simultaneous localization and mapping processing is better than indoor positioning for measurement accuracy and sensor cost. However, it is not easy to estimate position data from a single viewpoint directly. Based on these technical issues, we focus on geofencing techniques to improve position data acquisition. In this research, we propose a methodology to estimate more stable position or location data using unstable position data based on geofencing in indoor environments. We verify our methodology through experiments in indoor environments.

  7. A Probe into Reform of Rural Homestead Acquisition System

    Jun; TAN

    2013-01-01

    Using the methods of literature research,normative analysis,and empirical analysis,this study is intended to analyze the acquisition system of homestead in rural area of China.By adopting questionnaire survey and face-to-face interview,this study explores the problems of current homestead acquisition system and the dilemma of homestead management.The results indicate that homestead acquisition reform is the key aspect to the homestead management system reform.A new homestead acquisition system,which includes primitive acquisition,inheritance acquisition,and supporting system,is suggested in this study.The findings of this study will provide important policy implications for rural homestead system reform.The new homestead acquisition system could guarantee the farmers’property right and help improve social justice and rational utilization of nature resources.

  8. Instrumentation & Data Acquisition System (D AS) Engineer

    Jackson, Markus Deon

    2015-01-01

    The primary job of an Instrumentation and Data Acquisition System (DAS) Engineer is to properly measure physical phenomenon of hardware using appropriate instrumentation and DAS equipment designed to record data during a specified test of the hardware. A DAS system includes a CPU or processor, a data storage device such as a hard drive, a data communication bus such as Universal Serial Bus, software to control the DAS system processes like calibrations, recording of data and processing of data. It also includes signal conditioning amplifiers, and certain sensors for specified measurements. My internship responsibilities have included testing and adjusting Pacific Instruments Model 9355 signal conditioning amplifiers, writing and performing checkout procedures, writing and performing calibration procedures while learning the basics of instrumentation.

  9. The safety parameters monitoring system for the coal mine based on CAN bus communication and intelligent data acquisition

    Bin Guangfu; Chu Wangwen; Balbir S.Dhillon; He Wenbiao

    2008-01-01

    In this paper,a monitoring and controlling system for the safety in production and environmental parameters of a small and medium-sized coal mine has been developed after analyzing the current domestic coal production and securi-ty conditions.The client computer can convert the analog signal about the safety in production and environmental param-eters detected from the monitoring terminal into digital signal,and then,send the signal to the coal mine safety monito-ring centre.This information can be analyzed,judged,and diagnosed by the monitoring-management-controUing soft-ware for helping the manager and technical workers to control the actual underground production and security situations.The system has many advantages including high reliability,better performance of real-time monitoring,faster data com-municating and good practicability,and it can effectively prevent the occurrence of safety incidents in coal mines.

  10. DDS signal acquisition and PI feedback algorithm design based on FPGA for RF system of the synchrotron for proton therapy

    In this paper,we report the configuration of frequency sweeping mode and PI feedback control in the low-level RF system of the proton synchrotron for proton therapy. Altera Stratix II FPGA and AD9858 are adopted to get the direct digital synthesizer (DDS) signal of frequency sweeping mode by compiling Verilog HDL code. A PI feedback algorithm is designed to control the amplitude and phase of cavity voltage, with high precision and stability. (authors)

  11. Production Data Acquisition and Analysis Management System: An Example Based on a Study of Automotive Supplier Solution

    Lubomir Lengyel

    2013-12-01

    Full Text Available Quality of data coming from manual entry of information is a key element in efficiency of decision making process for all support functions and as well management allowing them to quickly react on changing circumstances of working environment. Principle finding of analysis performed within an automotive production companies shows a need to cover such requirement and develop a robust solution with efficient data collection, business intelligence capabilities and analysis support required for fast decision making process speeding up reaction in case of non-conformity. Purpose of KONIS system is providing a highly efficient solution for manual data entry, statistical analysis and decision making support for modern production company.

  12. Acquisition and representation of knowledge related to crack formation in power plant components - practical implementation in a knowledge-based system (ESR)

    The damage analysis in general and analysis of crack formation in particular, must rely on a careful balance of generic principles (e.g. generic knowledge about damage mechanisms) and information regarding the analyzed component (e.g. operating history, manufacturing data or construction records). Use of non-standard and/or advanced approaches (for damage parameters, monitoring techniques, etc.) can, on the one hand, enhance the solution by making it more comprehensive, but, on the other hand, it can also make the final decision more complex. In both cases, at the current state of practice, only heuristic knowledge can assure that all the important factors be properly considered. The examples shown in the paper illustrate the feasibility of obtaining useful interim results, which, through a continued long-term effort invested in knowledge acquisition and representation, and its integration into a knowledge-based system allow to achieve progressively the goals formulated at the beginning of the expert system for remaining life assessment project. (orig./DG)

  13. Development and Integration of a Data Acquisition System for SST-1 Phase-1 Plasma Diagnostics

    Long pulse (of the order of 1000 s or more) SST-1 tokamak experiments demand a data acquisition system that is capable of acquiring data from various diagnostics channels without losing useful data (and hence physics information) while avoiding unnecessary generation of a large volume data. SST-1 Phase-1 tokamak operation has been envisaged with data acquisition of several essential diagnostics channels. These channels demand data acquisition at a sampling rate ranging from 1 kilo samples per second (KSPS) to 1 mega samples per second (MSPS). Considering the technical characteristics and requirements of the diagnostics, a data acquisition system based on PXI and CAMAC has been developed for SST-1 plasma diagnostics. Both these data acquisition systems are scalable. Present data acquisition needs involving slow plasma diagnostics are catered by the PXI based data acquisition system. On the other hand, CAMAC data acquisition hardware meets all requirements of the SST-1 Phase-1 fast plasma diagnostics channels. A graphical user interface for both data acquisition systems (PXI and CAMAC) has been developed using LabVIEW application development software. The collected data on the local hard disk are directly streaming to the central server through a dedicated network for post-shot data analysis. This paper describes the development and integration of the data acquisition system for SST-1 Phase-1 plasma diagnostics. The integrated testing of the developed data acquisition system has been performed using SST-1 central control and diagnostics signal conditioning units. In the absence of plasma shots, the integrated testing of the data acquisition system for the initial diagnostics of SST-1 Phase-1 operation has been performed with simulated physical signals. The primary engineering objective of this integrated testing is to validate the performance of the developed data acquisition system under simulated conditions close to that of actual tokamak operation. The data

  14. Development and Integration of a Data Acquisition System for SST-1 Phase-1 Plasma Diagnostics

    Amit K SRIVASTAVA; Manika SHARMA; Imran MANSURI; Atish SHARMA; Tushar RAVAL; Subrata PRADHAN

    2012-01-01

    Long pulse (of the order of 1000 s or more) SST-1 tokamak experiments demand a data acquisition system that is capable of acquiring data from various diagnostics channels without losing useful data (and hence physics information) while avoiding unnecessary generation of a large volume data. SST-1 Phase-1 tokamak operation has been envisaged with data acquisition of several essential diagnostics channels. These channels demand data acquisition at a sampling rate ranging from 1 kilo samples per second (KSPS) to 1 mega samples per second (MSPS). Considering the technical characteristics and requirements of the diagnostics, a data acquisition system based on PXI and CAMAC has been developed for SST-1 plasma diagnostics. Both these data acquisition systems are scalable. Present data acquisition needs involving slow plasma diagnostics are catered by the PXI based data acquisition system. On the other hand, CAMAC data acquisition hardware meets all requirements of the SST-1 Phase-1 fast plasma diagnostics channels. A graphical user interface for both data acquisition systems (PXI and CAMAC) has been developed using LabVIEW application development software. The collected data on the local hard disk are directly streaming to the central server through a dedicated network for post-shot data analysis. This paper describes the development and integration of the data acquisition system for SST-1 Phase-1 plasma diagnostics. The integrated testing of the developed data acquisition system has been performed using SST-1 central control and diagnostics signal conditioning units. In the absence of plasma shots, the integrated testing of the data acquisition system for the initial diagnostics of SST-1 Phase-1 operation has been performed with simulated physical signals. The primary engineering objective of this integrated testing is to validate the performance of the developed data acquisition system under simulated conditions close to that of actual tokamak operation. The data

  15. An integrated, multi-vendor distributed data acquisition system

    A distributed data acquisition system that uses various computer hardware and software is being developed to support magnetic fusion experiments at Lawrence Livermore National Laboratory (LLNL). The experimental sequence of operations is controlled by a supervisory program, which coordinates software running on Digital Equipment Corporation (DEC) VAX computers, Hewlett-Packard (HP) UNIX-based workstations, and HP BASIC desktop computers. An interprocess communication system (IPCS) allows programs to communicate with one another in a standard manner regardless of program location in the network or of operating system and hardware differences. We discuss the design and implementation of this data acquisition system with particular emphasis on the coordination model and the IPCS. 5 refs., 3 figs

  16. Wireless Data Acquisition System for Launch Vehicles

    Sabooj Ray

    2013-03-01

    Full Text Available Present launch vehicle integration architecture for avionics uses wired link to transfer data between various sub-systems. Depending on system criticality and complexity, MIL1553 and RS485 are the common protocols that are adopted. These buses have their inherent complexity and failure issues due to harness defects or under adverse flight environments. To mitigate this problem, a prototype wireless, data acquisition system for telemetry applications has been developed and demonstrated. The wireless system simplifies the integration, while reducing weight and costs. Commercial applications of wireless systems are widespread. Few systems have recently been developed for complex and critical environments. Efforts have been underway to make such architectures operational in promising application scenarios. This paper discusses the system concept for adapting a wireless system to the existing bus topology. The protocol involved and the internal implementation of the different modules are described. The test results are presented; some of the issues faced are discussed and the; future course of action is identified.Defence Science Journal, 2013, 63(2, pp.186-191, DOI:http://dx.doi.org/10.14429/dsj.63.4262

  17. Nike Facility Diagnostics and Data Acquisition System

    Chan, Yung; Aglitskiy, Yefim; Karasik, Max; Kehne, David; Obenschain, Steve; Oh, Jaechul; Serlin, Victor; Weaver, Jim

    2013-10-01

    The Nike laser-target facility is a 56-beam krypton fluoride system that can deliver 2 to 3 kJ of laser energy at 248 nm onto targets inside a two meter diameter vacuum chamber. Nike is used to study physics and technology issues related to laser direct-drive ICF fusion, including hydrodynamic and laser-plasma instabilities, material behavior at extreme pressures, and optical and x-ray diagnostics for laser-heated targets. A suite of laser and target diagnostics are fielded on the Nike facility, including high-speed, high-resolution x-ray and visible imaging cameras, spectrometers and photo-detectors. A centrally-controlled, distributed computerized data acquisition system provides robust data management and near real-time analysis feedback capability during target shots. Work supported by DOE/NNSA.

  18. Realization and Research on Data Acquisition System Based on LabVIEW%基于LabVIEW原理数据采集系统的实现和研究

    姜光

    2012-01-01

    文中基于LabVIEW 7.0Express开发平台,设计开发了虚拟数据采集系统,并能对接收的信号进行参数设定。通过实验证明,虚拟数据采集系统实现了传统采集系统的基本功能,同时增强了系统的灵活性,与网络技术结合进行远程数据采集,充分发挥了虚拟仪器的优势。%Based on LabVIEW 7.0 Express development platform,the paper develops a virtual data acquisition system,which can set parameters for the signals received.It is shown in the experiment that the basic function of traditional data acquisition system can be fully realized by the the virtual data acquisition system,and the system flexibility is enhanced and the remote date acquisition is able to be realized via internet technology.The virtual data acquisition system can give full play to the advantages of virtual instruments.

  19. Auxiliary DCP data acquisition system. [airborne system

    Snyder, R. V.

    1975-01-01

    An airborne DCP Data Aquisition System has been designed to augment the ERTS satellite data recovery system. The DCP's are data collection platforms located at pertinent sites. With the appropriate sensors they are able to collect, digitally encode and transmit environmental parameters to the ERTS satellite. The satellite in turn relays these transmissions to a ground station for processing. The satellite is available for such relay duty a minimum of two times in a 24-hour period. The equipment is to obtain continuous DCP data during periods of unusual environmental activity--storms, floods, etc. Two circumstances contributed to the decision to design such a system; (1) Wallops Station utilizes surveillance aircraft in support of rocket launches and also in support of earth resources activities; (2) the area in which Wallops is located, the Delaware and Chesapeake Bay areas, are fertile areas for DCP usage. Therefore, by developing an airborne DCP receiving station and installing it on aircraft more continuous DCP data can be provided from sites in the surrounding areas at relatively low cost.

  20. Design of Data Acquisition System for Submarines Combat System Based on Multi- Protocol Conversion%基于多协议转换的潜艇作战数据采集系统设计

    王黎明; 郑健; 龙长江

    2012-01-01

    According to the need of data acquisition for independent and centralized Submarines Combat System, and considering the Distributed Combat System in future, the Data Acquisition System for Submarines Combat System based on Multi -Protocol Conversion is designed. Currently, data acquisition for submarines is scattered at different positions. Consequently, the existing data acquisition equipments can only be used for the specific submarines. The designed system could overcome this problem and provide equipments for general submarines and for general use. By a system performance test in laboratory environment, system response time is short, the network throughput meet current wireless network bandwidth requirements, and CPU usage is low. The test has proved this system meets the demand for data acquisition at different positions in submarines, and it has the following advantages: high stability, fast response, and strong processing power. Furthermore, its low system resource occupancy shows its high Scalability.%针对目前独立式以及集中式潜艇作战系统数据采集需要,并兼顾未来分布式作战系统发展要求,设计了一种基于多协议转换的潜艇作战数据采集系统;克服了目前由于潜艇数据采集点分散而造成研制的数据采集设备专艇专用、通用性不强的问题;通过在实验室环境下的系统性能测试,其中系统响应时间短,网络备吐率指标满足当前无线网络带宽要求,CPU使用率较低;由此证明该系统稳定、响应快、处理能力强,满足潜艇多点数据采集的要求,另外较小的系统开销也带来较强的系统可扩展性.

  1. Modular software for MAST multi-technology data acquisition system

    The MAST (Mega-Amp Spherical Tokamak) data acquisition system is being radically upgraded. New hardware with completely different control interface and logic has been installed on all system levels from front-end devices to plant control. MAST plant control has been moved from VMS to a Windows-based OPC system. Old CAMAC and VME units are being replaced by cPCI and PXI units. A number of CAMAC crates have been upgraded with new Ethernet controllers supporting useful front-end devices. The upgrade is being performed without disturbing operations; the data acquisition units are being replaced gradually. Such an upgrade is possible due to the structure of the MAST data acquisition system which is build as a set of autonomous units, each one controlled by a computer. Modern computers are capable of controlling several units, and this has been the major opportunity and challenge because it radically changes the unit control logic. As a result practically all system components had to be redesigned. The new unit software is a step in system evolution towards greater flexibility and universality. Each unit can now manage multiple data files, possibly with different formats, and many units can be hosted on the same computer. This feature is provided by a message proxy server. Each unit is controlled independently and transparently, exactly like a stand-alone unit. A message interface has been modified for consistent handling of new functions. The unit software supports event-triggered and real-time data acquisition at the system level. New software has been developed for a number of new hardware devices, and the device modules for all usable old devices have been rewritten to operate with the new control interface. The new software allows units to be upgraded even during operations. The system structure and logic provide easy extension. The system as a whole or system design elements could also be used on other fusion facilities.

  2. 基于灰色决策系统中的知识获取%Knowledge acquisition based on grey decision systems

    樊伟

    2013-01-01

    The main objective of this paper is to study approaches to knowledge reductions in incomplete ordered information system in which not only unknown values are existing but also all attributes are looked as criterions. In such information system, the concept of similarity dominance relation is proposed for classification analysis,and then two new forms of knowledge reduction are presented, respectively. Based on the lower and upper approximate sets in terms of similarity dominance relation, the concept of approximate distribution reduct is introduced into incomplete ordered decision system. Furthermore, the judgment theorems,discernibility matrixes with respect to four new approximate distribution reducts are obtained and then the discernibility formulas are used to calculate these reducts. Finally,an illustrative example is analyzed. These results are meaningful both in the theory and in applications for rules’ acquisition in complex incomplete decision systems.%  现实世界中的信息决策系统是非常复杂的,许多信息表中的记录不仅是离散值,还可能为区间值。本文以包含区间值的灰色粗糙集为研究对象,使用基于区间一致关系和区间包含关系取代经典粗集模型中的等价关系和不可分别关系,给出了从含区间值灰色决策系统中获取知识新的理论基础与操作手段。

  3. Test bed for real-time image acquisition and processing systems based on FlexRIO, CameraLink, and EPICS

    Highlights: • The test bed allows for the validation of real-time image processing techniques. • Offers FPGA (FlexRIO) image processing that does not require CPU intervention. • Is fully compatible with the architecture of the ITER Fast Controllers. • Provides flexibility and easy integration in distributed experiments based on EPICS. - Abstract: Image diagnostics are becoming standard ones in nuclear fusion. At present, images are typically analyzed off-line. However, real-time processing is occasionally required (for instance, hot-spot detection or pattern recognition tasks), which will be the objective for the next generation of fusion devices. In this paper, a test bed for image generation, acquisition, and real-time processing is presented. The proposed solution is built using a Camera Link simulator, a Camera Link frame-grabber, a PXIe chassis, and offers software interface with EPICS. The Camera Link simulator (PCIe card PCIe8 DVa C-Link from Engineering Design Team) generates simulated image data (for example, from video-movies stored in fusion databases) using a Camera Link interface to mimic the frame sequences produced with diagnostic cameras. The Camera Link frame-grabber (FlexRIO Solution from National Instruments) includes a field programmable gate array (FPGA) for image acquisition using a Camera Link interface; the FPGA allows for the codification of ad-hoc image processing algorithms using LabVIEW/FPGA software. The frame grabber is integrated in a PXIe chassis with system architecture similar to that of the ITER Fast Controllers, and the frame grabber provides a software interface with EPICS to program all of its functionalities, capture the images, and perform the required image processing. The use of these four elements allows for the implementation of a test bed system that permits the development and validation of real-time image processing techniques in an architecture that is fully compatible with that of the ITER Fast Controllers

  4. Test bed for real-time image acquisition and processing systems based on FlexRIO, CameraLink, and EPICS

    Barrera, E., E-mail: eduardo.barrera@upm.es [Grupo de Investigación en Instrumentación y Acústica Aplicada, Universidad Politécnica de Madrid (UPM) (Spain); Ruiz, M.; Sanz, D. [Grupo de Investigación en Instrumentación y Acústica Aplicada, Universidad Politécnica de Madrid (UPM) (Spain); Vega, J.; Castro, R. [Asociación EURATOM/CIEMAT para Fusión, Madrid (Spain); Juárez, E.; Salvador, R. [Centro de Investigación en Tecnologías Software y Sistemas Multimedia para la Sostenibilidad, Universidad Politécnica de Madrid (UPM) (Spain)

    2014-05-15

    Highlights: • The test bed allows for the validation of real-time image processing techniques. • Offers FPGA (FlexRIO) image processing that does not require CPU intervention. • Is fully compatible with the architecture of the ITER Fast Controllers. • Provides flexibility and easy integration in distributed experiments based on EPICS. - Abstract: Image diagnostics are becoming standard ones in nuclear fusion. At present, images are typically analyzed off-line. However, real-time processing is occasionally required (for instance, hot-spot detection or pattern recognition tasks), which will be the objective for the next generation of fusion devices. In this paper, a test bed for image generation, acquisition, and real-time processing is presented. The proposed solution is built using a Camera Link simulator, a Camera Link frame-grabber, a PXIe chassis, and offers software interface with EPICS. The Camera Link simulator (PCIe card PCIe8 DVa C-Link from Engineering Design Team) generates simulated image data (for example, from video-movies stored in fusion databases) using a Camera Link interface to mimic the frame sequences produced with diagnostic cameras. The Camera Link frame-grabber (FlexRIO Solution from National Instruments) includes a field programmable gate array (FPGA) for image acquisition using a Camera Link interface; the FPGA allows for the codification of ad-hoc image processing algorithms using LabVIEW/FPGA software. The frame grabber is integrated in a PXIe chassis with system architecture similar to that of the ITER Fast Controllers, and the frame grabber provides a software interface with EPICS to program all of its functionalities, capture the images, and perform the required image processing. The use of these four elements allows for the implementation of a test bed system that permits the development and validation of real-time image processing techniques in an architecture that is fully compatible with that of the ITER Fast Controllers

  5. 基于STM32的脑电信号采集系统设计%Design of Electroencephalogram Acquisition System Based on STM32

    王琼颖; 张宏民; 李竹琴; 刘志勇; 王乐凡; 孙金玮

    2015-01-01

    脑电信号包含大量的脑功能状态信息,已被广泛应用于脑神经疾病诊断、脑机接口、睡眠分期、麻醉深度监测等领域。脑电信号是幅度为微伏级的生物电信号,频率不超过150 Hz,极易受到眼电、心电等信号干扰,因此,有效提取脑电信号是分析脑电信号的前提。文章设计了基于 STM32的脑电信号采集系统,实现脑电信号的有效采集。通过贴在前额的三导联生物电极,将脑电信号感应至预处理电路,在前端模拟电路中对信号进行多级放大,并设计了无源滤波网络及多个有源滤波器对信号进行滤波和调理,同时加入电平抬升电路、电极连接状态检测电路。利用12位模数转换器将脑电信号转换为数字信号,并通过蓝牙模块传至上位机,实现脑电信号的有效提取与传输,为下一步处理分析提供基础。通过对比采集到的脑电信号和国外同类产品的输出,验证了该脑电采集系统的有效性。%Electroencephalogram(EEG) contains a large amount of brain function state information, and has been widely applied in many ifelds, such as cranial nerve disease diagnosis, brain-computer interface, and sleep stage and anesthetic depth monitoring. EEG is a weak bio-electric signal, whose amplitude is just microvolt and frequency is lower than 150 Hz. Since EEG is easily interfered by signals, like electro-oculogram and electrocardiogram, effective extraction of EEG is key to EEG analysis. An EEG acquisition system based on STM32 was designed to realize effective acquisition of EEG. In this system, EEG signals were sensed by three lead biological electrodes on the forehead, then ampliifed through multistage ampliifcation in the front analog circuit and ifltered by passive iflter or active iflters. Meanwhile, electrical level rising circuit and electrode connection state detection circuit were also added in. After that, EEG signals were converted to

  6. Data Acquisition and Transmission System for Building Energy Consumption Monitoring

    Liang Zhao; Jili Zhang; Ruobing Liang

    2013-01-01

    Building energy consumption monitoring and management system have been developed widely in China in order to gain the real-time data of energy consumption in buildings for analyzing it in the next state work. This paper describes a low-cost and small-sized collector based on the STM32 microcontroller, which can be placed in a building easily to implement the work of data acquisition, storage, and transmission. The collector gathers the electricity, water, heat, and energy consumption data thr...

  7. CCD image data acquisition system for optical astronomy.

    Bhat, P. N.; Patnaik, K.; Kembhavi, A. K.; Patnaik, A. R.; Prabhu, T. P.

    1990-11-01

    A complete image processing system based on a charge coupled device (CCD) has been developed at TIFR, Bombay, for use in optical astronomy. The system consists of a P-8600/B GEC CCD chip, a CCD controller, a VAX 11/725 mini-computer to carry out the image acquisition and display on a VS-11 monitor. All the necessary software and part of the hardware were developed locally, integrated together and installed at the Vainu Bappu Observatory at Kavalur. CCD as an imaging device and its advantages over the conventional photographic plate is briefly reviewed. The acquisition system is described in detail. The preliminary results are presented and the future research programme is outlined.

  8. Run control techniques for the Fermilab DART data acquisition system

    DART is the high speed, Unix based data acquisition system being developed by the Fermilab Computing Division in collaboration with eight High Energy Physics Experiments. This paper describes DART run-control which implements flexible, distributed, extensible and portable paradigms for the control and monitoring of data acquisition systems. We discuss the unique and interesting aspects of the run-control - why we chose the concepts we did, the benefits we have seen from the choices we made, as well as our experiences in deploying and supporting it for experiments during their commissioning and sub-system testing phases. We emphasize the software and techniques we believe are extensible to future use, and potential future modifications and extensions for those we feel are not

  9. The data acquisition software based on LabWindows/CVI in pre-research system of dark matter particles detection in space

    The project of dark matter particles detection in space led by Purple Mountain Observatory has started the development of ground-based prototype. In order to match the debugging and testing of ground-based prototype, the software for test control and date acquisition is designed, which is based on LabWindows/CVI framework and integrates the related technologies of VISA and MATLAB. Now, this software has been used in the debugging and testing of ground-based prototype, and provides an effective, simple debugging tool. (authors)

  10. 基于GPRS的无线采集终端开发%Development of the Wireless Data Acquisition System Based on GPRS

    臧峰; 王江伟; 赵刚; 陈俊

    2015-01-01

    Dispersed regional data acquisition features low efficiency and poor real time performance, thus the data acquisition and control terminal based on GPRS has been designed. The MCF5213 from Freescale is adopted as the core processor;the hardware structure of wireless acquisition terminal is designed combining with the wireless transmission module EM310 from Huawei. On the basis of software design concept of multi-state and multi-task, the operational process of GPRS and the data acquisition monitoring functions are described in detail.%分散区域数据采集具有效率低、实时性差等缺点,因此设计了一种基于GPRS的数据采集控制终端。采用Freescale公司的MCF5213为核心处理器,结合华为公司的EM310无线发送模块,设计了无线采集终端的硬件结构。依据多状态、多任务的软件设计思想,详细阐述了GPRS的工作流程和对下数据采集监控功能。

  11. Design of propellant acquisition systems for advanced cryogenic space propulsion systems

    Burge, G. W.; Blackmon, J. B.; Castle, J. N.

    1973-01-01

    This paper presents results of work conducted to expand the technology base and evolve practical propellant surface tension acquisition system designs for future cryogenic space vehicles. Surface tension screen device channel flow analysis and supporting tests showed that reasonable mesh sizes could provide the required retention performance. Integrated subsystem studies and development showed that practical and effective screen surface tension acquisition devices could be designed for typical applications, but that other interfacing feed subsystems are often constrained by the design of the particular acquisition device. These constraints may dominate the total feed system performance.

  12. CODA: A scalable, distributed data acquisition system

    A new data acquisition system has been designed for physics experiments scheduled to run at CEBAF starting in the summer of 1994. This system runs on Unix workstations connected via ethernet, FDDI, or other network hardware to multiple intelligent front end crates -- VME, CAMAC or FASTBUS. CAMAC crates may either contain intelligent processors, or may be interfaced to VME. The system is modular and scalable, from a single front end crate and one workstation linked by ethernet, to as may as 32 clusters of front end crates ultimately connected via a high speed network to a set of analysis workstations. The system includes an extensible, device independent slow controls package with drivers for CAMAC, VME, and high voltage crates, as well as a link to CEBAF accelerator controls. All distributed processes are managed by standard remote procedure calls propagating change-of-state requests, or reading and writing program variables. Custom components may be easily integrated. The system is portable to any front end processor running the VxWorks real-time kernel, and to most workstations supplying a few standard facilities such as rsh and X-windows, and Motif and socket libraries. Sample implementations exist for 2 Unix workstation families connected via ethernet or FDDI to VME (with interfaces to FASTBUS or CAMAC), and via ethernet to FASTBUS or CAMAC

  13. Wearable System for Acquisition and Monitoring of Biological Signals

    Piccinini, D. J.; Andino, N. B.; Ponce, S. D.; Roberti, MA; López, y. N.

    2016-04-01

    This paper presents a modular, wearable system for acquisition and wireless transmission of biological signals. Configurable slaves for different signals (such as ECG, EMG, inertial sensors, and temperature) based in the ADS1294 Medical Analog Front End are connected to a Master, based in the CC3200 microcontroller, both from Texas Instruments. The slaves are configurable according to the specific application, providing versatility to the wearable system. The battery consumption is reduced, through a couple of Li-ion batteries and the circuit has also a battery charger. A custom made box was designed and fabricated in a 3D printer, preserving the requirements of low cost, low weight and safety recommendations.

  14. Determination of characteristics of feromagnetic material using modern data acquisition system

    Koprivica Branko

    2009-01-01

    Full Text Available This paper describes the use of modern measuring and data acquisition system for determining characteristics of feromagnetic material. For this purpose data acquisition card NI USB-6009, PC with data acquisition software and fluxmeter Electrical Steel Measuring System MPG 100 D were used. Based on the results obtained by measurements the modeling of hysteresis loop is performed by using appropriate mathematical model.

  15. The Nuclotron internal target control and data acquisition system

    Isupov, A.Yu., E-mail: isupov@moonhe.jinr.ru [Joint Institute for Nuclear Research, Dubna 141980 (Russian Federation); Krasnov, V.A.; Ladygin, V.P.; Piyadin, S.M.; Reznikov, S.G. [Joint Institute for Nuclear Research, Dubna 141980 (Russian Federation)

    2013-01-11

    The new control system of the Nuclotron (JINR, Dubna) internal target is described in both hardware and software aspects. The CAMAC hardware is based on the use of the standard CAMAC modules developed and manufactured at JINR. The internal target control and data acquisition (IntTarg CDAQ) system software is implemented using the ngdp framework under the Unix-like operating system (OS) FreeBSD to allow easy network distribution of the online data collected from internal target and accompanying detectors, as well as the internal target remote control.

  16. The Nuclotron internal target control and data acquisition system

    Isupov, A. Yu.; Krasnov, V. A.; Ladygin, V. P.; Piyadin, S. M.; Reznikov, S. G.

    2013-01-01

    The new control system of the Nuclotron (JINR, Dubna) internal target is described in both hardware and software aspects. The CAMAC hardware is based on the use of the standard CAMAC modules developed and manufactured at JINR. The internal target control and data acquisition (IntTarg CDAQ) system software is implemented using the ngdp framework under the Unix-like operating system (OS) FreeBSD to allow easy network distribution of the online data collected from internal target and accompanying detectors, as well as the internal target remote control.

  17. GNU/Linux driver development for embedded data acquisition systems

    Adrian Iglesias-Benitez

    2014-04-01

    Full Text Available The present work focuses on the development of a driver to handle a data acquisition system controlled by the MINI2440 single board computer based on the S3C2440 RISC processor from Samsung and equipped with an ARM920T 32 bits kernel, in which an embedded GNU/Linux operating system is executed. A global vision of the system is presented and the hardware and software components are described. Emphasis is made in the use of structures, functions and blocking and synchronization primitives GNU/Linux offers to solve problems of the producer´s/consumer´s kind.

  18. MIDAS (Master Information and Data Acquisition System)

    Ball, D.L.

    1986-01-01

    The Master Information and Data Acquisition System (MIDAS) is a computerized work control system that provides 24-hour, real-time access to plant equipment information and work package status. It is used in the 400 Area of the Department of Energy (DOE) Hanford Site in Richland, Washington. MIDAS was originally created to aid in the release and control of work at the Fast Flux Test Facility (FFTF), which is operated by the Westinghouse Hanford Company for the DOE. After MIDAS performed that function at FFTF successfully for over two years, its role was expanded to provide similar functions for other facilities supporting the LMR mission. Through its ability to provide online, accurate information on plant components, safety criteria, and work package status, MIDAS reinforces Operations functions and the control and authorization of maintenance activities in the FFTF plant and in other related facilities. Thus, MIDAS enhances the operational safety, as well as the planning and scheduling process for these facilities. MIDAS consists of three parts: The Plant Tracking System (PTS), the Work Control Log (WCL), and the MIDAS Component Indices (MCI).

  19. MIDAS [Master Information and Data Acquisition System

    The Master Information and Data Acquisition System (MIDAS) is a computerized work control system that provides 24-hour, real-time access to plant equipment information and work package status. It is used in the 400 Area of the Department of Energy (DOE) Hanford Site in Richland, Washington. MIDAS was originally created to aid in the release and control of work at the Fast Flux Test Facility (FFTF), which is operated by the Westinghouse Hanford Company for the DOE. After MIDAS performed that function at FFTF successfully for over two years, its role was expanded to provide similar functions for other facilities supporting the LMR mission. Through its ability to provide online, accurate information on plant components, safety criteria, and work package status, MIDAS reinforces Operations functions and the control and authorization of maintenance activities in the FFTF plant and in other related facilities. Thus, MIDAS enhances the operational safety, as well as the planning and scheduling process for these facilities. MIDAS consists of three parts: The Plant Tracking System (PTS), the Work Control Log (WCL), and the MIDAS Component Indices

  20. The LHCb trigger and data acquisition system

    Dufey, J P; Harris, F; Harvey, J; Jost, B; Mato, P; Müller, E

    2000-01-01

    The LHCb experiment is the most recently approved of the 4 experiments under construction at CERNs LHC accelerator. It is a special purpose experiment designed to precisely measure the CP violation parameters in the B-B system. Triggering poses special problems since the interesting events containing B-mesons are immersed in a large background of inelastic p-p reactions. We therefore decided to implement a 4 level triggering scheme. The LHCb Data Acquisition (DAQ) system will have to cope with an average trigger rate of ~40 kHz, after two levels of hardware triggers, and an average event size of ~100 kB. Thus an event-building network which can sustain an average bandwidth of 4 GB/s is required. A powerful software trigger farm will have to be installed to reduce the rate from the 40 kHz to ~100 Hz of events written to permanent storage. In this paper we outline the general architecture of the Trigger and DAQ system and the readout protocols we plan to implement. First results of simulations of the behavior o...

  1. Software upgradation of PXI based data acquisition for Aditya experiments

    Aditya Data Acquisition and Control System is designed to acquire data from diagnostics like Loop Voltage, Rogowski, Magnetic probes, X-rays etc and for control of gas feed, gate valve control, trigger pulse generation etc. CAMAC based data acquisition system was updated with PXI based Multifunction modules. The System is interfaced using optical connectivity with PC using PCI based controller module. Data is acquired using LabVIEW graphical user interface (GUI) and stored in server. The present GUI based application does not have features like module parameters configuration, analysis, webcasting etc. So a new application software using LabVIEW is being developed with features for individual module support considering programmable channel configuration - sampling rate, number of pre and post trigger samples, number of active channel selection etc. It would also have facility of using multi-functionality of timer and counter. The software would be scalable considering more modules, channels and crates along with security of different access level of user privileges. (author)

  2. The Unit control of an acquisition system for ocean bottom seismometer (OBS)

    Carreras Pons, Normandino; Roset Juan, Francesc Xavier; Shariat Panahi, Shahram; Artero Delgado, Carola; Manuel Lázaro, Antonio; Owen, Tim; Antonijuan Rull, Josefina

    2012-01-01

    In this paper we talk about an acquisition system for seismic data. The Ocean Bottom Seismometer (OBS) is equipment designed to obtain the seismic marine data from the seabed. The main part of this paper is based in an application which controls the acquisition data of four measurement channels. This system has been tested in lab, getting the corresponding results.

  3. A Flexible Microcontroller-Based Data Acquisition Device

    Darko Hercog

    2014-06-01

    Full Text Available This paper presents a low-cost microcontroller-based data acquisition device. The key component of the presented solution is a configurable microcontroller-based device with an integrated USB transceiver and a 12-bit analogue-to-digital converter (ADC. The presented embedded DAQ device contains a preloaded program (firmware that enables easy acquisition and generation of analogue and digital signals and data transfer between the device and the application running on a PC via USB bus. This device has been developed as a USB human interface device (HID. This USB class is natively supported by most of the operating systems and therefore any installation of additional USB drivers is unnecessary. The input/output peripheral of the presented device is not static but rather flexible, and could be easily configured to customised needs without changing the firmware. When using the developed configuration utility, a majority of chip pins can be configured as analogue input, digital input/output, PWM output or one of the SPI lines. In addition, LabVIEW drivers have been developed for this device. When using the developed drivers, data acquisition and signal processing algorithms as well as graphical user interface (GUI, can easily be developed using a well-known, industry proven, block oriented LabVIEW programming environment.

  4. A method for knowledge acquisition in diagnostic expert system.

    Li, Weishi; Li, Aiping; Li, Shudong

    2015-01-01

    Knowledge acquisition plays very important role in the diagnostic expert system. It usually takes a long period to acquire disease knowledge using the traditional methods. To solve this problem, this paper describes relations between rough set theory and rule-based description of diseases, which corresponds to the process of knowledge acquisition of diagnostic expert system. Then the exclusive rules, inclusive rules and disease images of disease are built based on the PDES diagnosis model, and the definition of probability rule is put forward. At last, the paper presents the rule-based automated induction reasoning method, including exhaustive search, post-processing procedure, estimation for statistic test and the bootstrap and resampling methods. We also introduce automated induction of the rule-based description, which is used in our diseases diagnostic expert system. The experimental results not only show that rough set theory gives a very suitable framework to represent processes of uncertain knowledge extraction, but also that this method induces diagnostic rules correctly. This method can act as the assistant tool for development of diagnosis expert system, and has an extensive application in intelligent information systems. PMID:26410329

  5. Data acquisition system for a deuteration chamber

    The work present is focusing auxiliary in the experiment the reaction of fusion in cold in the laboratory of Physical of Plasmas of Instituto Nacional de Investigaciones Nucleares. These systems of acquisition of data concrete to register in line surface of pressure and temperature in the gap of 5.6 x 10-4 to 1 x 103 and -270 to 1300 Centigrade degrees with help of personal computer. The manner of purchase in chamber of Deuterium is per middle of thermocouple with the object of whereas any control of the temperature in different point in the some of manner the signal of in for the system is the thermocouple (milli volts), the conversion analogy a digital is mean of Cad of 12 bits rate double slope the out is mean the PPI to send the signal to P C of these manner the read of the thermocouples is translate graphic or digital in the screen of the P C. In the phase of pressure element sensor is measure type Pirani, the measure is of manner of temperature. (Author)

  6. Development of an operator`s mental model acquisition system. 1. Estimation of a physical mental model acquisition system

    Ikeda, Mitsuru; Mizoguchi, Riichirou [Inst. of Scientific and Industrial Research, Osaka Univ., Ibaraki (Japan); Yoshikawa, Shinji; Ozawa, Kenji

    1997-03-01

    This report describes a technical survey of acquisition method of an operator`s understanding for functions and structures of his target nuclear plant. This method is to play a key role in the information processing framework to support on-training operators in forming their knowledge of the nuclear plants. This kind of technical framework is aiming at enhancing human operator`s ability to cope with anomaly plant situations which are difficult to expect from preceding experiences or engineering surveillance. In these cases, cause identifications and responding operation selections are desired to made not only empirically but also based on thoughts about possible phenomena to take place within the nuclear plant. This report focuses on a particular element technique, defined as `explanation-based knowledge acquisition`, as the candidate technique to potentially be extended to meet the requirement written above, and discusses about applicability to the learning support system and about necessary improvements, to identify future technical developments. (author)

  7. 3D - Acquisition systems - test in Chooz B nuclear plant

    EDF needs 3D-acquisition systems to get the precise geometry of critical nuclear spaces in order to prepare computer simulations of operations in these areas. The simulations must lead to an increase of the efficiency of the operation. The acquisition of the 3-D geometry can be done using 3D-acquisition systems. To answer the needs of the Construction Division, four different systems are compared by the Research Division in Chooz B nuclear plant in order to determine the right solution for each 3D-acquisition problem

  8. 'RADAR': The standard Euratom unattended data acquisition system

    Automatic, unattended data acquisition is becoming an essential and more common part of safeguards. The reasons are the growing number of large plants with automatic handling of material, the rising amount of material and the continuous need to optimize scarce human inspection resources. This paper describes the status of the latest development, the software program package RADAR (Remote Acquisition of Data and Review), which aims at standardizing the unattended NDA systems in use by the Euratom Safeguards Office (ESO). ESO has started to use unattended systems particularly in the large bulk handling facilities more than a decade ago. As a result of the learning process, the Windows NT based RADAR has now been developed in house with close commercial cooperation and has already been successfully installed in facilities in several EU member states. The data acquisition layer of RADAR can deal with a large variety of sensors. The technical review program, Global Surveyor, allows to see the state of health of the system and to check the completeness of acquired data. The generic data analysis program CRISP with its user interface SEAT aids the inspector in finding safeguards conclusions. RADAR also allows the transmission of data remotely, either to a central inspector's office on a large site or to headquarters in Luxembourg. The state of the various components is also discussed in detail. (author)

  9. Event triggering in the IceCube data acquisition system

    In order to detect cosmic ray air showers and neutrinos, the software data acquisition (DAQ) system of the IceCube Neutrino Observatory forms triggers on patterns of Cherenkov light deposition in the detector based on temporal and/or spatial coincidences. Here we describe the algorithms used for triggering, as well as the fast merging algorithm used to combine the time-ordered hit streams from the optical modules. We also present recently implemented and planned modifications of the DAQ that take advantage of our newly upgraded multi-core computer systems at the South Pole

  10. The new digital data acquisition system for Gammasphere

    Carpenter, M. P.; Albers, M.; Anderson, J. T.; Ayangeakaa, A.; David, H. M.; Hoffman, C. R.; Janssens, R. V. F.; Lauritsen, T.; Madden, T.; Oberling, M.; Seweryniak, D.; Wilt, P.; Zhu, S.

    2015-10-01

    A new digital-based data acquisition system (DAQ) for Gammasphere has been developed. This system leverages the electronics designed for the GRETINA collaboration. At the center of this development are the GRETINA 10-channel digitizer modules which handle the Ge preamp signals at a 100MHz rate, and master trigger and router modules which allow triggers to be constructed from information obtained from the digitizer channels. The new DAQ increases event throughput significantly over the existing system while addressing multiple repair and maintenance issues. New hardware and firmware to integrate the DAQ with Gammasphere and its suite of ancillary detectors has been developed allowing for a seamless changeover from the analog DAQ to the new digital system. An overview of the system and illustrative results from several recent experiments will be presented. This material is based on work supported by the DOE, Office of Science, Office of Nuclear Physics under Contract No. DE-AC02-06CH11357.

  11. CLIC-ACM: Acquisition and Control System

    Bielawski, B; Magnoni, S

    2014-01-01

    CLIC [1] (Compact Linear Collider) is a world-wide collaboration to study the next terascale lepton collider, relying upon a very innovative concept of two-beamacceleration. In this scheme, the power is transported to the main accelerating structures by a primary electron beam. The Two Beam Module (TBM) is a compact integration with a high filling factor of all components: RF, Magnets, Instrumentation, Vacuum, Alignment and Stabilization. This paper describes the very challenging aspects of designing the compact system to serve as a dedicated Acquisition & Control Module (ACM) for all signals of the TBM. Very delicate conditions must be considered, in particular radiation doses that could reach several kGy in the tunnel. In such severe conditions shielding and hardened electronics will have to be taken into consideration. In addition, with more than 300 ADC&DAC channels per ACM and about 21000 ACMs in total, it appears clearly that power consumption will be an important issue. It is also obvious that...

  12. Acoustic imaging systems (for robotic object acquisition)

    Richardson, J. M.; Martin, J. F.; Marsh, K. A.; Schoenwald, J. S.

    1985-03-01

    The long-term objective of the effort is to establish successful approaches for 3D acoustic imaging of dense solid objects in air to provide the information required for acquisition and manipulation of these objects by a robotic system. The objective of this first year's work was to achieve and demonstrate the determination of the external geometry (shape) of such objects with a fixed sparse array of sensors, without the aid of geometrical models or extensive training procedures. Conventional approaches for acoustic imaging fall into two basic categories. The first category is used exclusively for dense solid objects. It involves echo-ranging from a large number of sensor positions, achieved either through the use of a larger array of transducers or through extensive physical scanning of a small array. This approach determines the distance to specular reflection points from each sensor position; with suitable processing an image can be inferred. The second category uses the full acoustic waveforms to provide an image, but is strictly applicable only to weak inhomogeneities. The most familiar example is medical imaging of the soft tissue portions of the body where the range of acoustic impedance is relatively small.

  13. Remote Data Acquisition Using Wireless - Scada System

    Dr. Aditya Goel

    2009-03-01

    Full Text Available Supervisory Control and Data Acquisition (SCADA is a field of constant devel¬opment and research. This project investigates on creating an extremely low cost device which can be adapted to many different SCADA applications via some very basic program¬ming, and plugging in the relevant peripherals. Much of the price in some expensive SCADA applications is a result of using specialized communication infrastructure. The application of infrastructure, in the proposed scheme the cost will come down. Additionally the generic nature of the device will be assured. Wireless SCADA deals with the creation of an inexpensive, yet adaptable and easy to use SCADA device and infrastructure using the mobile telephone network, in particular, the General Packet Radio Service (GPRS. The hardware components making up the device are relatively unsophisticated, yet the custom written software makes it re-programmable over the air, and able to provide a given SCADA application with the ability to send and receive control and data signals at any non predetermined time. GPRS is a packet-based radio service that enables “al¬ways on” connections, eliminating repetitive and time-consuming dial-up connections. It will also provide real throughput in excess of 40 Kbps, about the same speed as an excellent landline analog modem connection.

  14. Low Cost Data Acquisition System for Students

    Sachin Sharma Gaurav Kumar

    2011-12-01

    Full Text Available Today the engineering education in India is increasing, so the demand of quality projects and quality research at the students level is also increasing. To make good hardware projects most of the time we need to acquire real time data. This acquisition is done through the dedicated device which is called Data Acquisition Device. In India there are very less no. of companies which are making the Data Acquisition Devices and the available devices are very costly for the students. Hence, there is need to provide students a cost effective or low cost device which can suite according to their proposed work. In this paper we have designed and implemented a prototype of Data Acquisition Device (DAQ using AVR microcontroller. The software for the DAQ device has been mode on MATLAB and LabView and the device has been tested for different tasks and under different conditions

  15. Knowledge Acquisition for Semantic Search Systems

    W. Wei; Barnaghi, PM; Bargiela, A

    2008-01-01

    Semantic search extends the scope of conventional information search and retrieval paradigms from documentoriented and to entity and knowledge-centric search and retrieval. By attempting to provide direct and intuitive answers such systems alleviate information overload problem and reduce information seekers’ cognitive overhead. Ontologies and knowledge bases are fundamental cornerstones in semantic search systems based on which sophisticated search mechanisms and efficient search services ar...

  16. Design of Inertial Data Acquisition and Storage System Based on FPGA%基于FPGA的惯性数据采集与存储系统设计

    王楠; 韩焱; 王鉴; 李凯

    2011-01-01

    After the comparison of the characteristics of MCU., DSP and FPGA, a hardware platform is built with FPGA as the core controller. It used NAND FLASH as a storage medium and ADIS16355 as vehicle' s stance information acquisition. Finally real-time inertial data acquisition and storage is realized. The module of USB realizes the data communication between the acquisition and storage system and the computer. Firstly, the paper introduced the design of the system. Then it discussed the design method of timing logic of control and the read-write of data. The system has high stability. If put it into a camera, it can avoid the image motion because of the camera attitude and assure the steady precision of the platform.%在比较了MCU、DSP和FPGA的特性后,搭建了一个以FPGA为核心控制器的硬件平台;它采用NAND Flash作为存储介质,利用ADIS16355获取载体姿态信息,最终实现惯性数据的实时采集与存储,并通过USB模块完成与上位机的通讯;在简要介绍系统总体设计的基础上,重点讨论了系统的时序控制和数据的读写方法;该系统具有较高的角稳定度(陀螺漂移率小于0.015°/s),将其置于相机内,可较好地消除由于相机姿态变化产生的像移,保证了成像系统的稳定精度.

  17. Optimization of Hierarchical System for Data Acquisition

    Novotny, V.

    2011-01-01

    Television broadcasting over IP networks (IPTV) is one of a number of network applications that are except of media distribution also interested in data acquisition from group of information resources of variable size. IP-TV uses Real-time Transport Protocol (RTP) protocol for media streaming and RTP Control Protocol (RTCP) protocol for session quality feedback. Other applications, for example sensor networks, have data acquisition as the main task. Current solutions have mostly problem with ...

  18. Data acquisition system for a cabled ocean bottom seismometer (OBS)

    Rogalski, Tomasz; Shariat Panahi, Shahram; Río Fernandez, Joaquín del; Manuel Lázaro, Antonio

    2010-01-01

    Ocean Bottom Seismometers (OBS) are highly used to monitor seismic activities at sea. They are also used to detect tsunamis and generate warning alarms. This paper presents a data acquisition system built for an OBS with capability to synchronize time through IEEE-1588 protocol. This acquisition system provides real time data through the Ethernet making it suitable for OBSs deployed at seafloor observatories.

  19. Realization of mini data acquisition system under LINUX

    Data acquisition is an important part of computer application, which is widely used and also a promising field. This is a project that builds an object-oriented mini data acquisition system on prevalent PC running Linux Operating system. It is connected with high-speed bus device to utilize the computer software and hardware

  20. Flexible data acquisition system for experiments at COSY

    For the KFA Juelich COoler SYnchrotron (COSY) a general data acquisition system was developed. Its architecture is based on available standards (VME, FASTBUS, CAMAC, VICbus) and UNIX Workstations forming a distributed processor system. Based on this hardware a flexible and modular data acquisition software was designed allowing the configuration of various experiment arrangements. The software design for run control is arranged according to a client server connectivity model as well as to an object oriented structure. It is logically based on MAP/MMS (ISO9506), a powerful application layer protocol for distributed automation systems in industry. In this application servers are implemented on the mProcessor controller boards at the front end. On the workstation side the experiment control client consists of dedicated processes with access to the configurable experiment data base. The user interface is realized by OSF/Motif. Established software standards for online data analysis high energy physics are employed. The authors discuss the most important design decisions mainly focusing on the software aspects

  1. Structure definition and component selection for the RFX control and Data Acquisition System

    The RFX experiment's Control and Data Acquisition system is discussed in this paper. It uses a hybrid approach for the hardware: programmable controllers for slow control and monitoring functions, CAMAC front-end and VAX computers for the fast functions of timing and shot related data acquisition. Programmable controllers and computers communicate via a fiber optic Ethernet LAN. The system is implemented as eight functional subsystems, four of which are programmable controller based, the rest computer based. These subsystems operate under a supervisory system which is implemented on a further progammable controller. Programming of the programmable controllers is largely done in CRAFCET, a graphical language for programming sequential controls. The computer based data acquisition software uses as far as possible existing code and concepts from other fusion labs. Engineering data acquisition and physics data acquisition are separate subsystems on separate computers, but use identical software

  2. Design of distributed signal synchronization data acquisition system base on ARM9%基于ARM9分布信号同步数据采集系统设计

    邱杰锋; 樊战友; 吴成英

    2011-01-01

    Distribution of signals for synchronous data acquisition,gives a method and process of design of synchronous data acquisition system base on ARM9, analysis and solution the main problems. This paper were introduced by the system's hardware composition and software design. The main function of system is the distribution of various parameters (such as temperature, pressure, sound) at different point in synchronization data acquisition, after the acquisition will be the analog to digital conversion. The biggest advantages of the system is use of the GPS signals control the ADC conversion time in order to realize high-precision synchronization of each acquisition node. Finally,the synchronous accuracy of the system can be achieved within 100ns by experiment.%针对分布信号的同步数据采集,给出了1种基于ARM9的同步数据采集系统的设计方法和过程,并对设计中遇到的主要问题进行了分析和解决.本文从系统的硬件组成、软件设计进行了说明.本系统主要功能是对分布在各个点的各种物理量(如温度、压力、声音)进行同步数据采集,将采集后的数据进行模数转换.系统最大的优点是利用GPS信号控制ADC芯片的转换时间从而实现各个采集节点的高精度同步.最后,通过实验验证了该系统的同步精度可以达到100ns以内.

  3. FASEA: A FPGA Acquisition System and Software Event Analysis for liquid scintillation counting

    The FASEA (FPGA based Acquisition and Software Event Analysis) system has been developed to replace the MAC3 for coincidence pulse processing. The system uses a National Instruments Virtex 5 FPGA card (PXI-7842R) for data acquisition and a purpose developed data analysis software for data analysis. Initial comparisons to the MAC3 unit are included based on measurements of 89Sr and 3H, confirming that the system is able to accurately emulate the behaviour of the MAC3 unit.

  4. Control and data acquisition systems for high field superconducting wigglers

    Batrakov, A; Karpov, G; Kozak, V; Kuzin, M; Kuper, E; Mamkin, V; Mezentsev, N A; Repkov, V V; Selivanov, A; Shkaruba, V A

    2001-01-01

    This paper describes the control and DAQ system of superconducting wigglers with magnetic field range up to 10.3 T. The first version of the system controls a 7 T superconducting wiggler prepared for installation at Bessy-II (Germany). The second one controls a 10 T wiggler which is under testing now at the SPring-8 site (Japan). Both systems are based on VME apparatus. The set of specialized VME modules is elaborated to arrange wiggler power supply control, full time wiggler monitoring, and magnetic field high accuracy measurement and field stabilization. The software for the control of the wigglers is written in C language for VxWorks operation system for a Motorola-162 VME controller. The task initialization, stops and acquisition of the data can be done from the nearest personal computer (FTP host for VME), or from the remote system as well.

  5. AN IMPROVED ECG SIGNAL ACQUISITION SYSTEM THROUGH CMOS TECHNOLOGY

    Mrs. Jyoti Athiya

    2012-03-01

    Full Text Available This paper presents the design and realization of low power, high gain PC based system for ECG and data acquisition of a patient’s heart condition. The advantage of this system is the use of standard CMOS process which will reduce the complexity and cost of the manufacturer. The system consists of three subsystems- Operational Amplifier based Pre-amplifier, ADC and USB interface device. High gain around 85 dB, low power dissipation of typically 0.683 mW and 61.5 degree phase-margin for stable closed loop operations wereachieved. All design and simulation were done using Tanner Tool 0.5 μm technology.

  6. 基于CMOS图像传感器的视频采集系统设计%Design of video acquisition system based on CMOS image sensor

    丁昊杰; 刘敬彪; 盛庆华

    2012-01-01

    提出了一种采用Altera公司CycloneⅡ系列的FPGA作为主控芯片,采用OV7670这款CMOS图像传感器作为视频信号源并采用SRAM(静态随机存储器)作为数据缓存的实用方案,实现了对图像传感器寄存器配置、图像传感器输出信号采集、图像数据格式转换、图像数据缓存及最终在VGA显示器上进行图像显示的一系列过程.该视频采集系统设计能够很好地满足实时图像的输出需求.%The configuration of the image sensor's registers, image sensor output signal acquisition, image data format conversion, image data buffer and final image displays on VGA monitor were realized by taking Altera's Cyclone II FPGA as a control chip, OV7670 CMOS image sensor as the video source and SRAM(Static Random Access Memory) as a data cache. The digital video acquisition system is able to satisfy the demand for real-time image output.

  7. 基于TMS320F2812的高速数据采集系统%High-speed Data Acquisition System Based on TMS320F2812

    黄惠钦; 杨威棣; 潘雪峰

    2011-01-01

    8 roads sync signal was collection by using TMS320F2812 DSP and MAX13O8 AD coverter. Collected data rela-time transited to the computer by CH372 USB inerface chip, and the data acquisition process controled and displayed by computer. The system can realized 800kbps real-time date transmission in single road of date acquisition and 400kbps in 8 roads synchronous collection.%采用TMS320F2812型号的DSP和MAX1308型号的AD转换器完成对8路同步信号的采集,通过USB接口芯片CH372将采集到的数据实时传输给计算机,计算机对整个数据采集过程进行控制并显示.该系统对单路的数据采集,可以实现800kbps的实时数据传输,8路同步采集可以实现400kbps的实时数据传输.

  8. Colorized linear CCD data acquisition system with automatic exposure control

    Li, Xiaofan; Sui, Xiubao

    2014-11-01

    Colorized linear cameras deliver superb color fidelity at the fastest line rates in the industrial inspection. It's RGB trilinear sensor eliminates image artifacts by placing a separate row of pixels for each color on a single sensor. It's advanced design minimizes distance between rows to minimize image artifacts due to synchronization. In this paper, the high-speed colorized linear CCD data acquisition system was designed take advantages of the linear CCD sensor μpd3728. The hardware and software design of the system based on FPGA is introduced and the design of the functional modules is performed. The all system is composed of CCD driver module, data buffering module, data processing module and computer interface module. The image data was transferred to computer by Camera link interface. The system which automatically adjusts the exposure time of linear CCD, is realized with a new method. The integral time of CCD can be controlled by the program. The method can automatically adjust the integration time for different illumination intensity under controlling of FPGA, and respond quickly to brightness changes. The data acquisition system is also offering programmable gains and offsets for each color. The quality of image can be improved after calibration in FPGA. The design has high expansibility and application value. It can be used in many application situations.

  9. Spent fuel test. Climax data acquisition system integration report

    The Spent Fuel Test - Climax (SFT-C) is a test of the retrievable, deep geologic storage of commercially generated, spent nuclear reactor fuel in granitic rock. Eleven spent fuel assemblies, together with 6 electrical simulators and 20 guard heaters, are emplaced 420 m below the surface in the Climax granite at the Nevada Test Site. On June 2, 1978, Lawrence Livermore National Laboratory (LLNL) secured funding for the SFT-C, and completed spent fuel emplacement May 28, 1980. This multi-year duration test is located in a remote area and is unattended much of the time. An extensive array of radiological safety and geotechnical instrumentation is deployed to monitor the test performance. A dual minicomputer-based data acquisition system collects and processes data from more than 900 analog instruments. This report documents the design and functions of the hardware and software elements of the Data Acquisition System and describes the supporting facilities which include environmental enclosures, heating/air-conditioning/humidity systems, power distribution systems, fire suppression systems, remote terminal stations, telephone/modem communications, and workshop areas. 9 figures

  10. Dumand-array data-acquisition system

    An overall data acquisition approach for DUMAND is described. The scheme assumes one array to shore optical fiber transmission line for each string of the array. The basic event sampling period is approx. 13 μsec. All potentially interesting data is transmitted to shore where the major processing is performed

  11. A Flexible Microcontroller-Based Data Acquisition Device

    Darko Hercog; Bojan Gergič

    2014-01-01

    This paper presents a low-cost microcontroller-based data acquisition device. The key component of the presented solution is a configurable microcontroller-based device with an integrated USB transceiver and a 12-bit analogue-to-digital converter (ADC). The presented embedded DAQ device contains a preloaded program (firmware) that enables easy acquisition and generation of analogue and digital signals and data transfer between the device and the application running on a PC via USB bus. This d...

  12. Beam diagnostics and data acquisition system for ion beam transport line used in applied research

    Ion beam transport line for applied research on U-400 cyclotron, beam diagnostics and data acquisition system for condensed matter studies are described. The main features of Windows-based real time program are considered

  13. Light field acquisition using a planar catadioptric system.

    Song, Weitao; Liu, Yue; Li, Weiming; Wang, Yongtian

    2015-11-30

    We propose a novel light field acquisition method based on a planar catadioptric system. Only one camera with a large field-of-view (FOV) is required, and multiple virtual cameras can be created via an array of planar mirrors to acquire the light field from different views. The spatial distribution of the virtual cameras can be configured flexibly to acquire particular light rays, which can be controlled by simply changing the positions of the mirrors. Compared with previous systems, no aberration or reduction in light transmittance is introduced by the planar mirrors, which ensures image quality. In this study, the design method of the planar catadioptric system is provided and a calibration procedure of its computational model is analyzed in detail. The method is verified by a prototype system, with which the correct digital refocusing results are achieved using the acquired, calibrated light field. PMID:26698741

  14. Wireless Data-Acquisition System for Testing Rocket Engines

    Lin, Chujen; Lonske, Ben; Hou, Yalin; Xu, Yingjiu; Gang, Mei

    2007-01-01

    A prototype wireless data-acquisition system has been developed as a potential replacement for a wired data-acquisition system heretofore used in testing rocket engines. The traditional use of wires to connect sensors, signal-conditioning circuits, and data acquisition circuitry is time-consuming and prone to error, especially when, as is often the case, many sensors are used in a test. The system includes one master and multiple slave nodes. The master node communicates with a computer via an Ethernet connection. The slave nodes are powered by rechargeable batteries and are packaged in weatherproof enclosures. The master unit and each of the slave units are equipped with a time-modulated ultra-wide-band (TMUWB) radio transceiver, which spreads its RF energy over several gigahertz by transmitting extremely low-power and super-narrow pulses. In this prototype system, each slave node can be connected to as many as six sensors: two sensors can be connected directly to analog-to-digital converters (ADCs) in the slave node and four sensors can be connected indirectly to the ADCs via signal conditioners. The maximum sampling rate for streaming data from any given sensor is about 5 kHz. The bandwidth of one channel of the TM-UWB radio communication system is sufficient to accommodate streaming of data from five slave nodes when they are fully loaded with data collected through all possible sensor connections. TM-UWB radios have a much higher spatial capacity than traditional sinusoidal wave-based radios. Hence, this TM-UWB wireless data-acquisition can be scaled to cover denser sensor setups for rocket engine test stands. Another advantage of TM-UWB radios is that it will not interfere with existing wireless transmission. The maximum radio-communication range between the master node and a slave node for this prototype system is about 50 ft (15 m) when the master and slave transceivers are equipped with small dipole antennas. The range can be increased by changing to

  15. The on-line data acquisition system for the MHD facility of Frascati

    An on-line data acquisition system for the MHD facility of the Laboratorio Conversione Diretta at Frascati is described. After a brief description of the MHD facility and of the measurement requirements, the criteria a,d the configuration of the minicomputer-based data acquisition system chosen are presented. Then the general philosophy and the flow-charts of the software implemented are shown, with particular emphasis to the real-time requirements of the measurement system. At last it is illustrated an off-line program, running on a large computer, that elaborates the output data of the data acquisition system

  16. Generic data acquisition system for robotic waste characterization

    This paper describes a generic data acquisition system for robotic characterization of DOE production facilities and waste sites. While the specific suite of characterization sensors on the end of a robotic arm or vehicle will depend on site needs, many of the data acquisition, display, archival and interpretation requirements of the sites are common. Therefore, the objective is to create a generic, reusable computing and data acquisition system which can accept a multitude of sensors. This paper discusses the progress to date and future plans for the system

  17. A nuclear data acquisition system flow control model

    A general Petri Net representation of a nuclear data acquisition system model is presented. This model provides for the unique requirements of a nuclear data acquisition system including the capabilities of concurrently acquiring asynchronous and synchronous data, of providing multiple priority levels of flow control arbitration, and of permitting multiple input sources to reside at the same priority without the problem of channel lockout caused by a high rate data source. Finally, a previously implemented gamma camera/physiological signal data acquisition system is described using the models presented

  18. Value-informed space systems design and acquisition

    Brathwaite, Joy

    Investments in space systems are substantial, indivisible, and irreversible, characteristics that make them high-risk, especially when coupled with an uncertain demand environment. Traditional approaches to system design and acquisition, derived from a performance- or cost-centric mindset, incorporate little information about the spacecraft in relation to its environment and its value to its stakeholders. These traditional approaches, while appropriate in stable environments, are ill-suited for the current, distinctly uncertain, and rapidly changing technical and economic conditions; as such, they have to be revisited and adapted to the present context. This thesis proposes that in uncertain environments, decision-making with respect to space system design and acquisition should be value-based, or at a minimum value-informed. This research advances the value-centric paradigm by providing the theoretical basis, foundational frameworks, and supporting analytical tools for value assessment of priced and unpriced space systems. For priced systems, stochastic models of the market environment and financial models of stakeholder preferences are developed and integrated with a spacecraft-sizing tool to assess the system's net present value. The analytical framework is applied to a case study of a communications satellite, with market, financial, and technical data obtained from the satellite operator, Intelsat. The case study investigates the implications of the value-centric versus the cost-centric design and acquisition choices. Results identify the ways in which value-optimal spacecraft design choices are contingent on both technical and market conditions, and that larger spacecraft for example, which reap economies of scale benefits, as reflected by their decreasing cost-per-transponder, are not always the best (most valuable) choices. Market conditions and technical constraints for which convergence occurs between design choices under a cost-centric and a value

  19. Front-end data processing the SLD data acquisition system

    The data acquisition system for the SLD detector will make extensive use of parallel at the front-end level. Fastbus acquisition modules are being built with powerful processing capabilities for calibration, data reduction and further pre-processing of the large amount of analog data handled by each module. This paper describes the read-out electronics chain and data pre-processing system adapted for most of the detector channels, exemplified by the central drift chamber waveform digitization and processing system

  20. The data acquisition system for the JADE detector

    An outline of the data acquisition system for the JADE experiment at PETRA, DESY is presented. After describing the hardware configuration, we describe our guiding ideas for the design of the data acquisition system, which is followed by accounts of the implementation of real time software, the data flow, the monitoring and detector control as well as the online event analysis and filtering. Finally we summarise our experience with the system. (orig.)

  1. Open mode dual parameter data acquisition and processing system

    An open mode dual parameter data acquisition and processing system is described. It works in the LabView environment of the main computer as a part of AMS data acquisition and control system. In this system the dead time for acquiring one effective event is less than 20 μs, the precision of life time is of ms class, and one can set the ROI region in ellipse or other shapes

  2. A data acquisition system for marine and ecological research.

    Johnson, R. A.

    1971-01-01

    Description of a self-contained portable data acquisition system for use in marine and ecological research. The compact lightweight data acquisition system is capable of recording 14 variables in its present configuration and is suitable for use in either a boat, pickup truck, or light aircraft. This system will provide the acquisition of reliable data on the structure of the environment and the effect of man-made and natural activities on the observed phenomenon. Utilizing both self-contained analog recording and a telemetry transmitter for real-time digital readout and recording, the prototype system has undergone extensive testing. Currently undergoing component performance upgrading, the prototype system has been utilized in several environmental science investigations associated with air pollution investigations and weather modification and is currently being used for marine data acquisition.

  3. 基于ARM工控主板的环境数据采集及无线传输系统%Environmental Data Acquisition and Wireless Transmission System Based on ARM Industrial Control Motherboard

    马俊明; 张游杰; 边杏宾

    2014-01-01

    在传统的数据采集装置中,单片机加采集卡方式存在采集通道少、单任务及实时性差等不足;工控机加装采集卡的方式费用较高且不宜维护。由于ARM芯片体积小、价格低、可靠性高,成为当前嵌入式数据采集装置的首选。选用ARM8006工控主板,设计开发了多通道实时数据采集监控系统,开发的设备能够保证采集过程中数据的可靠性及实时性,并可将现场采集数据通过无线网络传输到上位机,整个系统实现了数据采集、显示、存储及无线传输等功能。%In the traditional data acquisition device,there are some shortages in SCM(single chip microcomputer)+AC (acquisition card) mode such as the less acquisition channels,single task, and poor real-time performance, etc.;and ICM (industrial control motherboard)+AC (acquisition card) mode is not easy to maintain and has higher cost. Because of the advantages of smaller volume,lower cost and higher reliability, the ARM chip has become the first choice of embedded data acquisition device. Based on ARM8006 industrial control motherboard,this paper develops a multi-channel real-time data acquisition and monitoring system, which can ensure the reliability and instantaneity of the data in acquisition process,and transmit the data collected in the site to the host computer through wireless network, realize the functions of the data acquisition,display,storage and wireless transmission.

  4. Explanation-based knowledge acquisition of electronics

    Kieras, David E.

    1992-08-01

    This is the final report in a project that examined how knowledge of practical electronics could be acquired from materials similar to that appearing in electronics training textbooks, from both an artificial intelligence perspective and an experimental psychology perspective. Practical electronics training materials present a series of basic circuits accompanied by an explanation of how the circuit performs the desired function. More complex circuits are then explained in terms of these basic circuits. This material thus presents schema knowledge for individual circuit types in the form of explanations of circuit behavior. Learning from such material would thus consist of first instantiating any applicable schemas, and then constructing a new schema based on the circuit structure and behavior described in the explanation. If the basic structure of the material is an effective approach to learning, learning about a new circuit should be easier if the relevant schemas are available than not. This result was obtained for both an artificial intelligence system that used standard explanation-based learning mechanisms and with human learners in a laboratory setting, but the benefits of already having the relevant schemas were not large in these materials. The close examination of learning in this domain, and the structure of knowledge, should be useful to future cognitive analyses of training in technical domains.

  5. A DSP controlled data acquisition system for CELSIUS

    Bengtsson, M; Ziemann, Volker

    2000-01-01

    We describe a data acquisition system based on two 10 MHz A/D-converters, a SHARC Digital Signal Processor (DSP), and a digital synthesizer used for triggering the A/D-converters. The temporal macrostructure of the data acquisition can be determined by external triggers or by timer interrupts from the DSP. In this way up to two million samples can be stored in DSP external memory. The samples are analyzed by directly fast Fourier transforming blocks of samples. In another mode we use software-based downmixing and filtering techniques to increase the resolution and zoom in on a small frequency band. Spectra of up to 5 MHz can be manipulated and displayed as waterfall plots or spectral maps on the host computer directly. Moreover, signals of up to 70 MHz can be analyzed by undersampling techniques. We use this system to analyze Schottky spectra from electron-cooled ion beams in CELSIUS and report drag rate measurements and observations of instabilities.

  6. 基于无线传感网的多功能低功耗数据采集平台设计%Design of Low Power and Multi-functional Data Acquisition System Based on Wireless Sensor Network

    虞致国; 万书芹; 陈子逢; 魏斌; 黄召军

    2012-01-01

    针对有线数据传输方式成本高、布线不易等缺陷,采用以MC1322X为核心,设计实现了一套基于ZigBee技术的数据无线传输系统。系统由采集节点、路由节点、协调器节点和上位机监控软件组成。介绍了系统原理结构,详细阐述了系统的硬件设计、系统的软件流程图。测试结果表明,采集节点具备低功耗特性,系统能够进行实时可靠通信。%For the defects of high cost and wiring complexity of wired network, a low power and wireless data acquisition system based on ZigBee technology and MC1322X is designed. The system is composed of data acquisition nodes, routing nodes, coordinator node and monitoring software. The system structure is in- troduced and hardware design, software flow chart are elaborated in detail. The testing result shows the data acquisition node has the advantage of low-power consumption and the whole system can communicate reliably.

  7. Data acquisition system for light-ion irradiation creep experiment

    Software was developed for a PDP11V/03-based data acquisition system to support the Light-Ion Irradiation Creep Experiment installed at the University of Washington Tandem Van de Graaff Accelerator. The software consists of a real-time data acquisition and storage program, DAC04, written in assembly language. This program provides for the acquisition of up to 30 chennels at 100 Hz, data averaging before storage on disk, alarming, data table display, and automatic disk switching. All analog data are acquired via an analog-to-digital converter subsystem having a resolution of 14 bits, a maximum throughput of 20 kHz, and an overall system accuracy of +-0.01%. These specifications are considered essential for the long-term measurement of irradiation creep strains and temperatures during the light-ion bombardment of irradiation creep specimens. The software package developed also contains a collection of FORTRAN programs designed to monitor a test while in progress. These programs use the foreground/background feature of the RT-11 operating system. The background programs provide a variety of services. The program, GRAFTR, allows transient data (i.e., prior to averaging) to be graphed at the graphics terminal. The program, GRAFAV, allows averaged data to be read from disk and displayed graphically at the terminal. The program, TYPAV, reads averaged data from disk and displays it at the terminal in tabular form. Other programs allow text messages to be written to disk, read from disk, and allow access to DAC04 initialization data. 5 figures, 18 tables

  8. Data acquisition system for light-ion irradiation creep experiment.

    Hendrick, P.L.; Whitaker, T.J.

    1979-07-01

    Software was developed for a PDP11V/03-based data acquisition system to support the Light-Ion Irradiation Creep Experiment installed at the University of Washington Tandem Van de Graaff Accelerator. The software consists of a real-time data acquisition and storage program, DAC04, written in assembly language. This program provides for the acquisition of up to 30 chennels at 100 Hz, data averaging before storage on disk, alarming, data table display, and automatic disk switching. All analog data are acquired via an analog-to-digital converter subsystem having a resolution of 14 bits, a maximum throughput of 20 kHz, and an overall system accuracy of +-0.01%. These specifications are considered essential for the long-term measurement of irradiation creep strains and temperatures during the light-ion bombardment of irradiation creep specimens. The software package developed also contains a collection of FORTRAN programs designed to monitor a test while in progress. These programs use the foreground/background feature of the RT-11 operating system. The background programs provide a variety of services. The program, GRAFTR, allows transient data (i.e., prior to averaging) to be graphed at the graphics terminal. The program, GRAFAV, allows averaged data to be read from disk and displayed graphically at the terminal. The program, TYPAV, reads averaged data from disk and displays it at the terminal in tabular form. Other programs allow text messages to be written to disk, read from disk, and allow access to DAC04 initialization data. 5 figures, 18 tables.

  9. Monitoring the BaBar Data Acquisition System

    2001-01-01

    The BaBar data acquisition system(DAQ)transports data from the detector front end eletronics to short term disk storage.A monitoring application(VMON)has been developed to monitor the one hundred and ninety computers in the dataflow system.Performance information for each CPU is collected and multicast across the existing data transport network.The packets are currently collected by a single UNIX workstation and archived.A ROOT based GUI provides control and displays the DAQ performance in real time.The same GUI is reused to recover archived VMON data,VMON has been deployed and constantly monitors the BaBar dataflow system.It has been used for diagnostics and provides input to models projecting future performance.The application has no measurable impact on data taking ,responds instantaneously on the human timescale to requests for information display,and uses only 3% of a 300MHz Sun Ultra5 CPU.

  10. Spent Fuel Test - Climax data acquisition system operations manual

    The Spent Fuel Test-Climax (SFT-C) is a test of the retrievable, deep geologic storage of commercially generated, spent nuclear reactor fuel in granite rock. Eleven spent fuel assemblies, together with 6 electrical simulators and 20 guard heaters, are emplaced 420 m below the surface in the Climax granite at the US Department of Energy Nevada Test Site. On June 2, 1978, Lawrence Livermore National Laboratory (LLNL) secured funding for the SFT-C, and completed spent fuel emplacement May 28, 1980. The multi-year duration test is located in a remote area and is unattended much of the time. An extensive array of radiological safety and geotechnical instrumentation is deployed to monitor the test performance. A dual minicomputer-based data acquisition system (DAS) collects and processes data from more than 900 analog instruments. This report documents the software element of the LLNL developed SFT-C Data Acquisition System. It defines the operating system and hardware interface configurations, the special applications software and data structures, and support software

  11. Evolutionary analysis of iron (Fe) acquisition system in Marchantia polymorpha.

    Lo, Jing-Chi; Tsednee, Munkhtsetseg; Lo, Ying-Chu; Yang, Shun-Chung; Hu, Jer-Ming; Ishizaki, Kimitsune; Kohchi, Takayuki; Lee, Der-Chuen; Yeh, Kuo-Chen

    2016-07-01

    To acquire appropriate iron (Fe), vascular plants have developed two unique strategies, the reduction-based strategy I of nongraminaceous plants for Fe(2+) and the chelation-based strategy II of graminaceous plants for Fe(3+) . However, the mechanism of Fe uptake in bryophytes, the earliest diverging branch of land plants and dominant in gametophyte generation is less clear. Fe isotope fractionation analysis demonstrated that the liverwort Marchantia polymorpha uses reduction-based Fe acquisition. Enhanced activities of ferric chelate reductase and proton ATPase were detected under Fe-deficient conditions. However, M. polymorpha did not show mugineic acid family phytosiderophores, the key components of strategy II, or the precursor nicotianamine. Five ZIP (ZRT/IRT-like protein) homologs were identified and speculated to be involved in Fe uptake in M. polymorpha. MpZIP3 knockdown conferred reduced growth under Fe-deficient conditions, and MpZIP3 overexpression increased Fe content under excess Fe. Thus, a nonvascular liverwort, M. polymorpha, uses strategy I for Fe acquisition. This system may have been acquired in the common ancestor of land plants and coopted from the gametophyte to sporophyte generation in the evolution of land plants. PMID:26948158

  12. Data acquisition system in TPE-1RM15

    The data acquisition system for TPE-1RM15 reversed field pinch machine had been developed and has recently been completed. Thd data to be acquired consist of many channels of time series data which come from plasma diagnostics. The newly developed data acquisition system uses CAMAC (Computer Automated Measurement And Control) system as a front end data acquisition system and micro-VAX II for control, file management and analyses. Special computer programs, DAQR/D, have been developed for data acquisition routine. Experimental setting and process controlling items are managed by a parameter database in a shared common region and every task can easily refer to it. The acquired data are stored into a mass storage system (total of 1.3GBytes plus a magnetic tape system) including an optical disk system, which can save storage space and allow quick reference. At present, the CAMAC system has 88 (1MHz sampling) and 64(5kHz sampling) channels corresponding to 1.6 MBytes per shot. The data acquisition system can finish one routine within 5 minutes with 1.6MBytes data depending on the amount of graphic outputs. Hardwares and softwares of the system are specified so that the system can be easily expanded. The computer is connected to the AIST Ethernet and the system can be remotely accessed and the acquired data can be transferred to the mainframes on the network. Details about specifications and performance of the system are given in this report. (author)

  13. Novel Data Acquisition and controls System (DACS) Demonstration Project

    National Aeronautics and Space Administration — The combined data acquisition and controls architecture is eliminating the need of the widely popular programmable logic control (PLCs).   The system uses...

  14. Online event filtering in the JADE data acquisition system

    The data acquisition system developed for the JADE experiment at PETRA, DESY includes the facility to use software to filter out background events. The design, implementation, testing and experience gained are discussed. (orig.)

  15. Extremelly High Bandwidth Rad Hard Data Acquisition System Project

    National Aeronautics and Space Administration — Analog-to-digital converters (ADCs) are the key components for digitizing high-speed analog data in modern data acquisition systems, which is a critical part of...

  16. Comparison Framework of FPGA-based GNSS Signals Acquisition Architectures

    Leclère, Jérôme; Botteron, Cyril; Farine, Pierre-André

    2013-01-01

    The acquisition of Global Navigation Satellite Systems signals using Code Division Multiple Access can be performed through classical correlation or using a Fourier transform. These methods are well known but what is missing is a comparison of their performance for a given hardware area or target. This paper presents this comparison for Field Programmable Gate Arrays, describing the different parameters involved in the acquisition, detailing some optimized implementations where hardware eleme...

  17. 基于Android的医疗设备无线数据采集与维护系统的设计%Design of Wireless Data Acquisition and Maintenance System for Medical Equipment based on Android

    俸皓; 陈俊彦; 牛旭

    2015-01-01

    为了提高医疗设备数据采集与维护的效率,设计了基于Android终端的数据采集系统.终端可通过低功耗蓝牙对医疗设备实施数据采集、参数设置和维护操作,采集得到的数据可在终端上进行暂存和统计分析管理,并可通过移动互联网上传至服务器.以血液细胞分析仪的数据采集为实际背景实现了本系统,测试和部署结果表明,本设计能够满足应用需求.%To improve the efficiency of data acquisition and maintenance of medical devices, the data acquisition system has been designed based on Android terminal. This kind of terminal can do data acquisition, parameter configuration and maintenance on the medical device by low power consumption bluetooth. The collected data could be temporarily restored for statistical analysis and management on the terminal, finally it will be transferred to the server through mobile Internet. We implement the system based on the data collected by blood cell analysis device, and the design can reach the practical requirement.

  18. Optimal Acquisition and Inventory Control for a Remanufacturing System

    Zhigang Jiang; Shuo Zhu; Hua Zhang; Yanhong Wang

    2013-01-01

    Optimal acquisition and inventory control can often make the difference between successful and unsuccessful remanufacturing. However, there is a greater degree of uncertainty and complexity in a remanufacturing system, which leads to a critical need for planning and control models designed to deal with this added uncertainty and complexity. In this paper, a method for optimal acquisition and inventory control of a remanufacturing system is presented. The method considers three inventories, on...

  19. REDAR: the radiation and environmental data acquisition and recorder system

    REDAR (Radiation and Environmental Data Acquisition and Recorder), Model IV, is a multi-microprocessor, portable data acquisition and real time analysis system. It was recently designed for use in severe environments aboard helicopters, fixed-wing aircraft, and various land vehicles. Nuclear radiation measurement, geographic position, and environmental data are simultaneously acquired, displayed on a CRT and multiple LED readouts, and recorded on cartridge tapes for post mission analysis on minicomputer systems

  20. The data acquisition system for the ANTARES neutrino telescope

    Aguilar, J A; Ameli, F; Anghinolfi, M; Anton, G; Anvar, S; Aslanides, E; Aubert, Jean-Jacques; Barbarito, E; Basa, S; Battaglieri, M; Becherini, Y; Bellotti, R; Beltramelli, J; Bertin, V; Bigi, A; Billault, M; Blaes, R; De Botton, N R; Bouwhuis, M C; Bradbury, S M; Bruijn, R; Brunner, J; Burgio, G F; Busto, J; Cafagna, F; Caillat, L; Calzas, A; Capone, A; Caponetto, L; Carmona, E; Carr, J; Cartwright, S L; Castel, D; Castorina, E; Cavasinni, V; Cecchini, S; Ceres, A; Charvis, P; Chauchot, P; Chiarusi, T; Circella, M; Colnard, C; Compere, C; Coniglione, R; Cottini, N; Coyle, P; Cuneo, S; Cussatlegras, A S; Damy, G; Van Dantzig, R; De Marzo, C; Dekeyser, I; Delagnes, E; Denans, D; Deschamps, A; Dessages-Ardellier, F; Destelle, J J; Dinkespieler, B; Distefano, C; Donzaud, C; Drogou, J F; Druillole, F; Durand, D; Ernenwein, J P; Escoffier, S; Falchini, E; Favard, S; Feinstein, F; Ferry, S; Festy, D; Fiorello, C; Flaminio, V; Galeotti, S; Gallone, J M; Giacomelli, G; Girard, N; Gojak, C; Goret, P; Graf, K; Hallewell, G D; Harakeh, M N; Hartmann, B; Heijboer, A; Heine, E; Hello, Y; Hernández-Rey, J J; Hossl, J; Hoffman, C; Hogenbirk, J; Hubbard, John R; Jaquet, M; Jaspers, M; De Jong, M; Jouvenot, F; Kalantar-Nayestanaki, N; Kappes, A; Karg, T; Karkar, S; Katz, U; Keller, P; Kok, H; Kooijman, P; Kopper, C; Korolkova, E V; Kouchner, A; Kretschmer, W; Kruijer, A; Kuch, S; Kudryavtsev, V A; Lachartre, D; Lafoux, H; Lagier, P; Lahmann, R; Lamanna, G; Lamare, P; Languillat, J C; Laschinsky, H; Le Guen, Y; Le Provost, H; Le Van-Suu, A; Legou, T; Lim, G; Lo Nigro, L; Lo Presti, D; Löhner, H; Loucatos, Sotirios S; Louis, F; Lucarelli, F; Lyashuk, V; Marcelin, M; Margiotta, A; Masullo, R; Mazéas, F; Mazure, A; McMillan, J E; Megna, R; Melissas, M; Migneco, E; Milovanovic, A; Mongelli, M; Montaruli, T; Morganti, M; Moscoso, L; Musumeci, M; Naumann, C; Naumann-Godo, M; Niess, V; Olivetto, C; Ostasch, R; Palanque-Delabrouille, Nathalie; Payre, P; Peek, H; Petta, C; Piattelli, P; Pineau, J P; Poinsignon, J; Popa, V; Pradier, T; Racca, C; Randazzo, N; Van Randwijk, J; Real, D; Van Rens, B; Rethore, F; Rewiersma, P A M; Riccobene, G; Rigaud, V; Ripani, M; Roca, V; Roda, C; Rolin, J F; Romita, M; Rose, H J; Rostovtsev, A; Roux, J; Ruppi, M; Russo, G V; Salesa, F; Salomon, K; Sapienza, P; Schmitt, F; Schuller, J P; Shanidze, R; Sokalski, I A; Spona, T; Spurio, M; van der Steenhoven, G; Stolarczyk, T; Streeb, K; Stubert, D; Sulak, L; Taiuti, M; Tamburini, C; Tao, C; Terreni, G; Thompson, L F; Valdy, P; Valente, V; Vallage, B; Venekamp, G; Verlaat, B; Vernin, P; De Vita, R; De Vries, G; Van Wijk, R F; De Witt-Huberts, P K A; Wobbe, G; De Wolf, E; Yao, A F; Zaborov, D; Zaccone, Henri; De Dios-Zornoza-Gomez, Juan; Zúñiga, J; al, et

    2006-01-01

    The ANTARES neutrino telescope is being constructed in the Mediterranean Sea. It consists of a large three-dimensional array of photo-multiplier tubes. The data acquisition system of the detector takes care of the digitisation of the photo-multiplier tube signals, data transport, data filtering, and data storage. The detector is operated using a control program interfaced with all elements. The design and the implementation of the data acquisition system are described.

  1. A fully implantable 96-channel neural data acquisition system.

    Rizk, Michael; Bossetti, Chad A; Jochum, Thomas A; Callender, Stephen H; Nicolelis, Miguel A L; Turner, Dennis A; Wolf, Patrick D

    2009-04-01

    A fully implantable neural data acquisition system is a key component of a clinically viable brain-machine interface. This type of system must communicate with the outside world and obtain power without the use of wires that cross through the skin. We present a 96-channel fully implantable neural data acquisition system. This system performs spike detection and extraction within the body and wirelessly transmits data to an external unit. Power is supplied wirelessly through the use of inductively coupled coils. The system was implanted acutely in sheep and successfully recorded, processed and transmitted neural data. Bidirectional communication between the implanted system and an external unit was successful over a range of 2 m. The system is also shown to integrate well into a brain-machine interface. This demonstration of a high channel-count fully implanted neural data acquisition system is a critical step in the development of a clinically viable brain-machine interface. PMID:19255459

  2. Data Acquisition and Transmission System for Building Energy Consumption Monitoring

    Liang Zhao

    2013-01-01

    Full Text Available Building energy consumption monitoring and management system have been developed widely in China in order to gain the real-time data of energy consumption in buildings for analyzing it in the next state work. This paper describes a low-cost and small-sized collector based on the STM32 microcontroller, which can be placed in a building easily to implement the work of data acquisition, storage, and transmission. The collector gathers the electricity, water, heat, and energy consumption data through the RS485 field bus and stores the data into an SD card with mass storage, finally, using Internet to finish the communication and transmission to data server through TCP protocol. The collector has been used in application for two years, and the results show that the system is reliable and stable.

  3. Experiences at HERA with the H1 data acquisition system

    The recently commissioned HERA collider provides a significant pointer to the problems that have to be surmounted in data acquisition systems at the next generation of hadron machines. With bunch crossings, between 30 GeV electrons and 820 GeV protons, 96 nanoseconds apart, the H1 experiment illustrates the application of sophisticated pipelining solutions in the readout of several hundred thousand electronic channels. A modular, multiprocessor design structure emphasis the architectural concepts necessary to cope with large data throughput and yet remain flexible enough to exploit ongoing technological advances in both hardware and software. The range of techniques implemented will be surveyed, covering various digitisation solutions at the front-end through to embedded microprocessor arrays in standard busses controlled by graphics-based stations executing object- orientated code. The experiences gained in developing such a system are also discussed. (orig.)

  4. Implementing Data Acquisition Systems DAS1 and DAS2 at Cernavoda Full-Scope Simulator Main Control Room based on the SIEN2007 solution

    Modern personnel training, re-training and licensing is a guarantee of NPP's safe reliable operation. Cernavoda NPP personnel training system is the main objective of its specialized department built up as Training Center (TC), directly supervised by Administration of the National Nuclearelectrica Society (SNN) and National Regulatory Body for Nuclear Activities (CNCAN). It was implemented to ensure the abilities, skills and knowledge required by the safe reliable operation of the nuclear reactor by the Main Control Room (MCR) operators. This objective was reached through training lessons taught and tested on the Full Scope Simulator (FSS), the TC's main training tool, a replica of the MCR of the real plant. Its description is the subject of this paper. The TC's FSS includes a computer network equipped with a software connected to the specialized program DATAPATH supplied for Cernavoda FSS by the FSS provider, delivered by L-3/ MAPPS. An alternative to DATAPATH Communication of the L 3/MAPPS Simulation System, developed by Cernavoda Full Scope Simulator Staff, was presented in the previous edition of the symposium (see the SIEN 2007 paper). This original solution is now already applied in order to connect to simulation process Data Acquisition Systems DAS1 and DAS2, two new systems already installed in the real MCR but not included by the Cernavoda FSS initial design. Communication between simulation software and DAS1 and DAS2, considered to be simple receivers of simulated data both as much alike as the two DASs from real plant, is performed in parallel with DATAPATH in a safe mode and without affecting simulation process. This paperwork presents the above mentioned application of this communication solution, developed by the Cernavoda NPP Full Scope Simulator Staff with details about the hardware/software solutions and their performance, training impact, cost and benefits. (authors)

  5. Part A: A data acquisition/controller system. Part B: Supplement to a data acquisition/controller system

    Khan, Fitratullah; Cavalcanti, Marcelo

    1994-05-01

    A data acquisition/controller system was required for gathering data simultaneously from different radars located spatially apart. Problems encountered in the earlier generation of data acquisition systems were to be alleviated. One of the major problems was the corruption of weak signals by noise on long analog signal cables. Some evidence of video display being another source of noise was also found. Another goal was to reduce the amount of cable going from radar sites to the operator's computer.

  6. SHIVA - A multitask data acquisition system for the Oslo University cyclotron laboratory

    The authors describe a general nuclear data acquisition system implemented on a minicomputer using the standard facilities of a real time operating system. The CAMAC data acquisition hardware is controlled by a high speed ADC scanner module. Sorting of multiparameter data is based on a flexible Transformation Of Nuclear Event (TONE) language. The data processing rate, including tape transfer, is several thousand events/s, depending on the complexity of the sorting program

  7. Optic fibber data acquisition and transmission system dedicated to a neutron generator

    Hereby, are presented the design, construction and application of a virtual data acquisition system based on the usage of microcontrollers, optic fibber, and PC. System is aimed to the reestablishment of the communication between the basic modules of a Neutron Generator. The work shows, how the original interface design is upgraded by the automation of the data acquisition, on the Neutron Generator exploitation parameters. The PC usage is being introduced in the Neutron Generator and the precedent is established for further subsystem

  8. Upgrade and extension of the data acquisition system for propulsion and gas dynamic laboratories.

    Wendland, Richard A.

    1992-01-01

    Approved for public release; distribution is unlimited The goal of the present work was to upgrade the data acquisition system (DAS) in the high-speed building of the Turbopropulsion Laboratory (TPL) and to develop a high-speed acquisition capability for pressure measurements for both the TPL and the new Gas Dynamics Laboratory (GDL) . Based on the use of the Hewlett Packard HP9000 Series 300 Computer as the system controller, a 96-channel high-speed pressure DAS was d...

  9. The trigger and data acquisition system of the SAPHIR detector

    At present SAPHIR, a new experimental facility for medium energy physics is under construction at the Bonn electron accelerator ELSA (energy ≤ 3.5 GeV, duty cycle ≅ 100%). SAPHIR combines a large solid angle coverage with a tagging system and is therefore suited to investigate reactions with multi-particle final states. Structure and function of the multi-stage trigger system, which is used to select such processes, are described in this paper. With this system the trigger decision can be based on the number of charged particles as well as on the number of neutral particle detected. Several VMEbus modules have been developed, using memory look-up tables to make fast trigger decisions possible. In order to determine the number of neutral particles from the cluster distribution in the electromagnetic calorimeter some ideas of cellular had to be added. The system has a modular structure, so it can easily be extended. In the second part of this thesis the SAPHIR data acquisition system is discussed. It consists of a multiprocessor system with the VIP microcomputer as central element. The VIP is a VMEbus modul optimized for a multiprocessor environment. Its description as well as that of the other VMEbus boards developed for the SAPHIR online system can be found in this paper. As a basis for software development the operating system SOS is supplied. With SOS it is possible to write programs independent of the actual hardware configuration and so the complicated multiprocessor environment is hidden. To the user the system looks like a simple multi-tasking system. SOS is not restricted to the VIPs but can also be installed on computers of the VAX family, so that efficient mixed configurations are possible. The SAPHIR online system, based on the VIP microcomputer and the SOS operating system, is presented in the last part of this paper. This includes the read-out system, the monitoring of the different components etc. (orig./HSI)

  10. Microcontroller Based Data Acquisition And Supervision

    Ishaan Dua

    2015-05-01

    Full Text Available ABSTRACT In this research paper we have designed a system that acts as a temperature sensor and also a warning system the system also has the facilitation of shutting down the machinery whose temperature is to be monitored. The main function of the system is to constantly monitor the temperature of a machine compare it to a predefined limit and shut down the machine if the temperature exceeds or falls below that limit. The system is highly useful for systems with high dependence on particular temperatures. The paper includes the requirement of such a system along with the idea behind development of the project. We have covered the hardware and software requirements for designing such a system. The paper covers the basic design of the project along with the block diagram. We have divided the entire design into sub circuits that cover the bridge rectifier relay driver and A to D convertor. We have covered the software simulation of the sub circuits. The results of the simulations have been compared to the expected outcome and so we know that the design is working properly.

  11. Automatic acquisition and classification system for agricultural network information based on Web data%基于Web数据的农业网络信息自动采集与分类系统

    段青玲; 魏芳芳; 张磊; 肖晓琰

    2016-01-01

    The purpose of this study is to obtain agricultural web information efficiently, and to provide users with personalized service through the integration of agricultural resources scattered in different sites and the fusion of heterogeneous environmental data. The research in this paper has improved some key information technologies, which are agricultural web data acquisition and extraction technologies, text classification based on support vector machine (SVM) and heterogeneous data collection based on the Internet of things (IOT). We first add quality target seed site into the system, and get website URL (uniform resource locator) and category information. The web crawler program can save original pages. The de-noised web page can be obtained through HTML parser and regular expressions, which create custom Node Filter objects. Therefore, the system builds a document object model (DOM) tree before digging out data area. According to filtering rules, the target data area can be identified from a plurality of data regions with repeated patterns. Next, the structured data can be extracted after property segmentation. Secondly, we construct linear SVM classification model, and realize agricultural text classification automatically. The procedures of our model include 4 steps. First of all, we use segment tool ICTCLAS to carry out the word segment and part-of-speech (POS) tagging, followed by combining agricultural key dictionary and document frequency adjustment rule to choose feature words, and building a feature vector and calculating inverse document frequency (IDF) weight value for feature words; lastly we design adaptive classifier of SVM algorithm. Finally, the perception data of different format collected by the sensor are transmitted to the designated server as the source data through the wireless sensor network. Relational database in accordance with specified acquisition frequency can be achieved through data conversion and data filtering. The key step of

  12. Implementation of a low cost digital data acquisition system for scintilation cameras

    Many commonly performed Nuclear Medicine studies involve the acquisition of image data in digital form so that subsequent quantitative analysis can be performed. Since the resources of typical modern minicomputer-based Nuclear Medicine data systems are greatly underutilized during acquisition of relatively low count rate data, the purpose of this study was to develop a low cost digital system which could relieve the main processing computer of this task. A digital acquisition system was designed with the following goals in mind: low cost, performance specifications suitable to meet the needs of most commonly performed studies, upgradability, data compatability with the main computer system, and ease of use. The system is based on an Intel 8888 microprocessor with 192K of RAM. A custom designed front end supports 256 x 256 matrix acquisition with 16 bits of precision, and ADC conversion time is 1.5 μsec. System software currently is capable of handling camera data at 50,000 cps with no data loss. The system cost (<$5000) is less than one tenth that of many commercially available systems. Software has been developed to pass image data to the host computer system (Digital Equipment Corporation Gamma 11), allowing for subsequent display and analysis. Adaptation to use with other vendor's systems would be straightforward. The feasability of implementing data acquisition with low cost microprocessor based systems has been demonstrated, and should help pave the way for digital storage of all Nuclear Medicine data

  13. Multiple multichannel spectra acquisition and processing system with intelligent interface

    A Multiple multichannel spectra acquisition and processing system with intelligent interface is described. Sixteen spectra measured with various lengths, channel widths, back biases and acquisition times can be identified and collected by the intelligent interface simultaneously while the connected computer is doing data processing. The execution time for the Ge(Li) gamma-ray spectrum analysis software on IBM PC-XT is about 55 seconds

  14. complete data acquisition system for a meteorology station plus radiation monitoring system

    The designed data acquisition system consist of three main parts, controller board, measurement board and data acquisition board. The controller board is based on 8052-Basic micro controller which can drive and control the work up to data acquisition board via external decoder. All physical parameters and their sampling time, for each channel, are treated and processed separately and the concluded results are finally stored in a 32 k byte RAM using a suitable program. The measurement board contains 5 digital channels to measure humidity, precipitation, radiation, wind speed and direction and also 4 channels to measure atmospheric pressure and temperature. The digital outputs, frequency, are buffered to protect the following measuring circuits, however, the analog outputs are converted to digital values using V/f converters. The third board, the data acquisition board, the data acquisition board, contains electronic counters and I/O units. Finally, this system allows measurement for different physical parameters and data storage up to 60 days depending on sampling and storage times. (author)

  15. Subject Acquisition for Web-Based Surveys

    Alvarez, R. Michael; Sherman, Robert P.; VanBeselaere, Clara

    2003-01-01

    This article provides a basic report about subject recruitment processes for Web-based surveys. Using data from our ongoing Internet Survey of American Opinion project, two different recruitment techniques (banner advertisement and subscription campaigns) are compared. This comparison, together with a typology of Web-based surveys, provides insight into the validity and generalizability of Internet survey data. The results from this analysis show that, although Internet survey respondents dif...

  16. Underspecification-Based Grammatical Feedback Generation Tailored to the Learner's Current Acquisition Level in an e-Learning System for German as Second Language

    Harbusch, Karin; Cameran, Christel-Joy; Härtel, Johannes

    2014-01-01

    We present a new feedback strategy implemented in a natural language generation-based e-learning system for German as a second language (L2). Although the system recognizes a large proportion of the grammar errors in learner-produced written sentences, its automatically generated feedback only addresses errors against rules that are relevant at…

  17. Design of Embedded Data Acquisition Terminal Based on RFID in Manufacturing Execution System of Textile Enterprise%面向纺织MES系统的RFID嵌入式数据采集终端设计

    刘昊

    2012-01-01

    Oriented to the textile enterprise information-based transformation, this article designed the overall frame and structure of manufacturing execution system based on RFID technology. According to the existing deficiencies on enterprise production line data acquisition terminal, data collection terminal system adopted combinative of the three technologies based on RFID, embedded and Internet technology is designed and realized. According to the test, the system could achieve data acquisition, production management and control of enterprise information integration.%面向纺织企业信息化改造,设计了基于RFID技术的生产制造执行系统总体框架结构,并针对企业现有生产线数据采集终端的一些不足,构建了基于RFID技术、嵌入式技术与Internet技术3者相结合的数据采集终端系统.经测试,该系统实现数据采集、生产管理以及企业信息控制的无缝集成.

  18. Data acquisition system for KOMAC beam monitoring using EPICS middleware

    Song, Young-Gi

    2015-10-01

    The beam diagnostics instrument used to measure the beam properties is one of the important devices for the 100-MeV proton linear accelerator of the KOrea Multi-purpose Accelerator Complex (KOMAC). A data acquisition system (DAQ) is required to collect the output beam signals conditioned in the analog front-end circuitry of a beam loss monitor (BLM) and a beam position monitor (BPM). The electrical beam signal must be digitized, and the sampling has to be synchronized to a global timing system that produces a pulse signal for the pulsed beam operation. The digitized data must be accessible by the experimental physics and industrial control system (EPICS)-based control system, which manages all accelerator control. An input output controller (IOC), which runs Linux on a central process unit (CPU) module with a peripheral component interconnect (PCI) express-based Analog-to-digital converter (ADC) card, has been adopted to satisfy the requirements. An associated Linux driver and EPICS device support module have also been developed. The IOC meets the requirements, and the development and maintenance of software for the IOC is very efficient. In this paper, the details of the DAQ system for the BLM and the BPM with the introduction of the KOMAC beam-diagnostics devices, along with the performance, are described.

  19. Configuration for the WNR data acquisition system for neutron measurements

    The configuration for a new data acquisition system for the Weapons Neutron Research Facility at the Los Alamos National Laboratory is introduced. The system utilizes a FASTBUS front-end for real-time data collection and DEC computers for the experiment control and analysis. A local area network is used extensively within the overall system. 6 refs., 3 figs

  20. Review of Supervisory Control and Data Acquisition (SCADA) Systems

    Reva Nickelson; Briam Johnson; Ken Barnes

    2004-01-01

    A review using open source information was performed to obtain data related to Supervisory Control and Data Acquisition (SCADA) systems used to supervise and control domestic electric power generation, transmission, and distribution. This report provides the technical details for the types of systems used, system disposal, cyber and physical security measures, network connections, and a gap analysis of SCADA security holes.

  1. Configuration for the WNR data acquisition system for neutron measurements

    The configuration for a new data acquisition system for the Weapons Neutron Research Facility at the Los Alamos National Laboratory is introduced. The system utilizes a FASTBUS front-end for real-time data collection and DEC computers for the experiment control and analysis. A local area network is used extensively within the overall system

  2. Data acquisition system for isochronous mass measurement at CSRe

    Isochronous mass measurement is one of physics research projects at CSRe of HIRFL-CSR. The signals induced by circulating ions are amplified and sampled with a digital oscilloscope Tektronix DPO 71254 at a sampling rate of 50 GSa/s. The record length of one injection is 200 μS. A program based on LabView and TekVISA is developed to automatically save the sampled data and display the time domain waveform. The pro- gram is also designed to on -line analyze the data to get the power spectrum of circulating ions. Principle of isochronous mass measurement at CSRe and the data acquisition system are introduced, and the application results are reported. (authors)

  3. A High Performance Virtualized Seismic Data Acquisition System

    Davis, G. A.; Eakins, J. A.; Reyes, J. C.; Franke, M.; Sánchez, R. F.; Cortes Muñoz, P.; Busby, R. W.; Vernon, F.; Barrientos, S. E.

    2014-12-01

    As part of a collaborative effort with the Incorporated Research Institutions for Seismology, a virtualized seismic data acquisition and processing system was recently installed at the Centro Sismológical Nacional (CSN) at the Universidad de Chile for use as part of their early warning system. Using lessons learned from the Earthscope Transportable Array project, the design of this system consists of dedicated acquisition, processing and data distribution nodes hosted on a high availability hypervisor cluster. Data is exchanged with the IRIS Data Management Center and the existing processing infrastructure at the CSN. The processing nodes are backed by 20 TB of hybrid Solid State Disk (SSD) and spinning disk storage with automatic tiering of data between the disks. As part of the installation, best practices for station metadata maintenance were discussed and applied to the existing IRIS sponsored stations, as well as over 30 new stations being added to the early warning network. Four virtual machines (VM) were configured with distinctive tasks. Two VMs are dedicated to data acquisition, one to the real-time data processing, and one as relay between data acquisition and processing systems with services for the existing earthquake revision and dissemination infrastructure. The first acquisition system connects directly to Basalt dataloggers and Q330 digitizers, managing them, and acquiring seismic data as well as state-of-health (SOH) information. As newly deployed stations become available (beyond the existing 30), this VM is configured to acquire data from them and incorporate the additonal data. The second acquisition system imports the legacy network of CSN and data streams provided by other data centers. The processing system is connected to the production and archive databases. The relay system merges all incoming data streams and obtains the processing results. Data and processing packets are available for subsequent review and dissemination by the CSN. Such

  4. A Labview based FPGA data acquisition with integrated stage and beam transport control

    We report on a new FPGA based data acquisition system developed for the CSIRO Nuclear Microprobe (NMP) which is tightly integrated with both target positioning and beam transport. The data acquisition system called MicrodaQ is based on National Instruments Labview FPGA and numerous instrumentation modules spread over several PC’s. Beam transport uses a feedback control loop to optimise current on target for long unmanned experiments. These upgrades are discussed in detail and an example of the systems use for μ-Particle Induced X-ray Emission (PIXE) analysis on a Doriri apatite is briefly described

  5. Custom open source solutions for DIII-D data acquisition and control systems

    Computer based control and data acquisition systems have long played a critical role in fusion research in the development and operation of experiments such as the DIII-D tokamak in San Diego. These systems require great flexibility in being able to control and tie together the many diverse subsystems that make up a tokamak, including power, cryogenic, vacuum, electrical, water, heating and computers. For well over a decade the DIII-D control and data acquisition systems have been running on Linux-based commodity computing hardware. This has provided DIII-D with a continual path of improvement to computing performance and capability while maintaining the usefulness and productivity of numerous custom developed software applications written over the years. The flexibility provided by these Linux based systems has allowed DIII-D to continue to utilize and support legacy CAMAC hardware in addition to incorporating newer PLC and data acquisition hardware. A number of in-house developed tools and applications have made these systems highly customizable and easily expandable in being able to meet the specific and growing needs of the DIII-D research program. Among the latest improvements to these systems have been upgrades to user interfaces, development of new control capabilities and increases to data acquisition capabilities. This paper will describe in detail the present state of the DIII-D computer based control and data acquisition systems and recent improvements that have been made.

  6. Developments in data acquisition systems with LabView datalogging and supervisory control module for tritium removal plant, with data base and process analysis

    Full text: The implementation of the new trends for tritium processing nuclear plants, and especially those with an experimental character or of new technology development, shows a very high complexity due to issues raised by the integration of a high diversity of instrumentation and equipment into a unitary control system of the technological process. Keeping the system's flexibility is a demand of the experimental plants for which the change of configuration, process and parameters is something usual. The big amount of data that needs to be monitored, stored and accessed for ulterior analyses demands the achievement of an information network where the data acquiring, control and analysis systems of the technological process can be integrated with a data base system. Thus, integrated computing and control systems needed for the control of the technological process will be executed, to be continued with the execution of failure protection system, by choosing methods corresponding to the technological processes within the tritium processing nuclear plants. (authors)

  7. Faillure Analysis for Domain Knowledge Acquisition in a Knowledge-Intensive CBR System

    Cordier, Amélie; Fuchs, Béatrice; Lieber, Jean; Mille, Alain

    2007-01-01

    International audience A knowledge-intensive case-based reasoning system has profit of the domain knowledge, together with the case base. Therefore, acquiring new pieces of domain knowledge should improve the accuracy of such a system. This paper presents an approach for knowledge acquisition based on some failures of the system. The CBR system is assumed to produce solutions that are consistent with the domain knowledge but that may be inconsistent with the expert knowledge, and this inco...

  8. Parallel data acquisition system for electron momentum spectrometer

    Pang, W N

    1999-01-01

    A parallel data acquisition system has been developed for the study of electron impact ionization of atoms and molecules. The system has a large data storage capacity providing good experimental resolution and system flexibility. The system is used to collect and analyze data from electron momentum spectroscopy experiment. Results from electron momentum spectroscopy experiments on C sub 4 H sub 1 sub 0 molecules, at an incident energy of 1200 eV, are presented to demonstrate the performance of the system. (author)

  9. An acquisition system of digital nuclear signal processing for the algorithm development

    A principle and method of constructing the digital acquisition system is presented in this work, which is convenient for the study on the theories and algorithms of digital nuclear signal processing. The hardware system of the digital acquisition system consists of front-end controller, waveform digitizer and PC workstation, on which the software system has been developed based on Visual C++ under Windows environment. The alterable-frequency sampling (AFS) algorithm and the alterable-frequency trapezoidal filter (AFTF) algorithm have also been studied in the real-time environment, along with a digital nuclear spectrum acquisition system being set up based on the new algorithms and the γ-ray spectra of 241Am being shown. A useful experimental platform could be provided by this work for the successive work such as the development of global digitized nuclear measurement system and the study of digital nuclear signal processing. (authors)

  10. FASTBUS data acquisition system for neutron time-of-flight measurements

    The design of a new data acquisition system for the Weapons Neutron Research Facility is based on the FASTBUS system hosted by DEC computers. System and FASTBUS configurations are discussed. Modules unique to pulsed time-of-flight measurements are presented

  11. 基于ADSP-BF561的视频采集与显示系统设计与开发%Design and development of real-time video acquisition and display system based on ADSP-BF561

    王晓卫; 樊海荣; 李明哲

    2014-01-01

    Tin order to realize the real-time video acquisition and display in the BF561video processing system,the design and developing method of the acquisition and output modules in the video processing system based on ADSP-BF561 are de-scribed in the aspects of hardware and software. According to the analysis of the system hardware architecture and video signal format,the design scheme ensured the continuity of video transmission,realized the real-time acquisition and display of video images,and laid out a foundation for the development of video processing system through the reasonable arrangement and con-figuration of video input/output working flow management and the peripheral resource on BF 561.%针对BF561视频处理系统中视频实时采集和显示这一基础问题,从软硬件两个方面对以ADSP-BF561为核心的视频处理系统中的采集和输出模块的设计和开发方法进行描述。该设计方案在分析系统硬件结构和所采集的视频信号格式的基础上,通过对视频输入/输出工作流程以及BF561片上外设资源的合理安排和配置,保证视频传输的连续性,实现了视频图像的实时采集和显示,为视频处理系统的工作奠定了基础。

  12. The ATLAS Data Acquisition and High Level Trigger system

    The ATLAS TDAQ Collaboration

    2016-06-01

    This paper describes the data acquisition and high level trigger system of the ATLAS experiment at the Large Hadron Collider at CERN, as deployed during Run 1. Data flow as well as control, configuration and monitoring aspects are addressed. An overview of the functionality of the system and of its performance is presented and design choices are discussed.

  13. Migrating Legacy Systems in the Global Merger & Acquisition Environment

    Katerattanakul, Pairin; Kam, Hwee-Joo; Lee, James J.; Hong, Soongoo

    2009-01-01

    The MetaFrame system migration project at WorldPharma, while driven by merger and acquisition, had faced complexities caused by both technical challenges and organizational issues in the climate of uncertainties. However, WorldPharma still insisted on instigating this post-merger system migration project. This project served to (1) consolidate the…

  14. An Overview of the LIGO Control and Data Acquisition System

    Bork, R G; Barker, D; Heefner, J W

    2001-01-01

    The LIGO Control and Data system (CDS) features a tightly coupled and highly integrated control and data acquisition system. Control of the interferometers requires many Multiple Input Multiple Output (MIMO) control loops closed both locally and across the 4-kilometer interferometer arm lengths. In addition to providing the closed loop control, the control systems front end processors act as Data Collection Units (DCU) for the data acquisition system. Data collected by these front ends and the data acquisition system must be collected and time stamped to an accuracy of 1 microsecond and made available to on-line analysis tools such as the Global Diagnostics System (GDS)[1]. Data is also sent to the LIGO Data Analysis System (LDAS)[2] for long-term storage and off-line analysis. Data rates exceed 5 Mbytes per second per interferometer continuous. Connection between the various front end processors and the data acquisition system is achieved using fiber optic reflective memory networks. Both controls and data a...

  15. 基于ZigBee无线传感器网络数据采集系统设计与开发%Design and Development of Data Acquisition System Based on ZigBee Wireless Sensor Network

    唐敏

    2015-01-01

    The article suggest a novel WSN data acquisition system based on Zigbee. The system is used in the teaching and experi⁃ment. The sensor nodes of the system can form the net topology architecture of star. Secondly, the information from sensor can be transmitted to PC via Zigbee and data acquisition module, and then doing analyze and deal with together. The system will be used in many fields in the future.%该文提出了一种基于ZigBee的无线传感器网络数据采集系统,该系统直接应用于课程教学实训,本系统由若干个传感器节点组成星型网络拓扑结构,终端节点将采集到的数据通过ZigBee无线传感器网络发送给协调器节点,由协调器节点通过串中发送到PC机,然后进行统一的分析和处理。该系统也可以应用于其他领域。

  16. Development of an optical beam system for deep sea data acquisition

    Remotely Operated Vehicles (ROV) are an ideal method for acquiring data from instruments located on the seabed. Electrical, acoustic or optical signals can be used to communicate with the data acquisition system. While optical signals have high capacity, the power of the optical beam decreases rapidly with distance in sea water; however, the ROV's ability to approach the instruments eliminates this problem. To investigate a feasibility of an optical beam system for underwater data acquisition, the author has developed and manufactured a prototype data acquisition instrument which the ROV can control. Based on the communication test results, he concludes that such a system is a practical means of short-range underwater data acquisition

  17. Waste retrieval sluicing system data acquisition system acceptance test report

    This document describes the test procedure for the Project W-320 Tank C-106 Sluicing Data Acquisition System (W-320 DAS). The Software Test portion will test items identified in the WRSS DAS System Description (SD), HNF-2115. Traceability to HNF-2115 will be via a reference that follows in parenthesis, after the test section title. The Field Test portion will test sensor operability, analog to digital conversion, and alarm setpoints for field instrumentation. The W-320 DAS supplies data to assist thermal modeling of tanks 241-C-106 and 241-AY-102. It is designed to be a central repository for information from sources that would otherwise have to be read, recorded, and integrated manually. Thus, completion of the DAS requires communication with several different data collection devices and output to a usable PC data formats. This test procedure will demonstrate that the DAS functions as required by the project requirements stated in Section 3 of the W-320 DAS System Description, HNF-2115

  18. A flexible computerized system for environmental data acquisition and transmission

    Zappalà, G.

    2009-04-01

    In recent years increasing importance has been addressed to the knowledge of the marine environment, either to help detecting and understanding global climate change phenomena, or to protect and preserve those coastal areas, where multiple interests converge (linked to the tourism, recreational or productive activities…) and which suffer greater impact from anthropogenic activities; this has in turn stimulated the start of research programs devoted to the monitoring and surveillance of these particular zones, coupling the needs for knowledge, sustainable development and exploitation of natural resources. There is an increasing need to have data available in real time or near real time in order to intervene in emergency situations. Cabled or wireless data transmission can be used. The first allows the transmission of a higher amount of data only in coastal sites, while the second gives a bigger flexibility in terms of application to different environments; more, using mobile phone services (either terrestrial or satellite), it is possible to allocate the data centre in the most convenient place, without any need of proximity to the sea. Traditional oceanographic techniques, based on ship surveys, hardly fit the needs of operational oceanography, because of their high cost and fragmentary nature, both in spatial and temporal domains. To obtain a good synopticity, it is necessary to complement traditional ship observations with measurements from fixed stations (buoys moored in sites chosen to be representative of wider areas, or to constitute a sentinel against the arrival of pollutants), satellite observations, use of ships of opportunity and of newly developed instruments, like the gliders, or towed sliding devices, like the SAVE. Modern instruments rely on an electronic heart; an integrated hardware-software system developed in Messina is here presented, used in various versions to control data acquisition and transmission on buoys or on ship-based

  19. Data acquisition system for a proton imaging apparatus

    Sipala, V; Bruzzi, M; Bucciolini, M; Candiano, G; Capineri, L; Cirrone, G A P; Civinini, C; Cuttone, G; Lo Presti, D; Marrazzo, L; Mazzaglia, E; Menichelli, D; Randazzo, N; Talamonti, C; Tesi, M; Valentini, S

    2009-01-01

    New developments in the proton-therapy field for cancer treatments, leaded Italian physics researchers to realize a proton imaging apparatus consisting of a silicon microstrip tracker to reconstruct the proton trajectories and a calorimeter to measure their residual energy. For clinical requirements, the detectors used and the data acquisition system should be able to sustain about 1 MHz proton rate. The tracker read-out, using an ASICs developed by the collaboration, acquires the signals detector and sends data in parallel to an FPGA. The YAG:Ce calorimeter generates also the global trigger. The data acquisition system and the results obtained in the calibration phase are presented and discussed.

  20. The data acquisition system of the OPAL detector at LEP

    This report describes the 1991 implementation of the data acquisition system of the OPAL detector at LEP including the additional services and infrastructure necessary for its correct and reliable operation. The various tasks in this 'on-line' environment are distributed amongst many VME subsystems, workstations and minicomputers which communicate over general purpose local area networks and special purpose buses. The tasks include data acquisition, control, monitoring, calibration and event reconstruction. The modularity of both hardware and software facilitates the upgrading of the system to meet new requirements. (orig.)