WorldWideScience

Sample records for bluetooth technology

  1. STUDY OF BLUETOOTH WIRELESS TECHNOLOGY USING JAVA

    Directory of Open Access Journals (Sweden)

    Pratibha Singh

    2011-06-01

    Full Text Available Bluetooth is a wireless communication protocol. Since it's a communication protocol, we can use Bluetooth to communicate to other Bluetooth-enabled devices. In this sense, Bluetooth is like any othercommunication protocol that you use every day, such as HTTP, FTP, SMTP, or IMAP. Bluetooth has a clientserver architecture; the one that initiates the connection is the client, and the one who receives the connection is the server. Bluetooth is a great protocol for wireless communication because it's capable of transmitting data atnearly 1MB/s, while consuming 1/100th of the power of Wi-Fi.Bluetooth is a short-range universal wireless connectivity standard for electronic appliances and mobile devices.Imagine being able to use your Bluetoothenabled mobile phone to lock and unlock your car, operate your garage door, and control your TV, VCR, DVD player, and other consumer appliances. If you want to make that kind of control available to your users, you'll need to be able to write Bluetooth applications . The purpose of this article is to give a good introduction that how to use java for the Bluetooth wireless technology , including an overview of its profiles. i'll also cover the the classes and methods of JSR-82, the official Java Bluetooth API. Finally, i'll wrap things up by describingwhat software that i'll need.

  2. Implementation and security of Bluetooth technology

    OpenAIRE

    Akhanolu, Idahosa

    2011-01-01

    Bluetooth is a wireless technology that has the capability of handling data and voice transmissions simultaneously. It makes use of its wireless nature to eliminate wired connections between portable devices within a specific or defined range without requiring a line of sight to communicate with each other. This range however, depends on the Bluetooth adapters or devices in use. Bluetooth is an industrial standard that specifies a low power radio frequency solution to transmit and receive ...

  3. Recording vocalizations with Bluetooth technology.

    Science.gov (United States)

    Gaona-González, Andrés; Santillán-Doherty, Ana María; Arenas-Rosas, Rita Virginia; Muñoz-Delgado, Jairo; Aguillón-Pantaleón, Miguel Angel; Ordoñez-Gómez, José Domingo; Márquez-Arias, Alejandra

    2011-06-01

    We propose a method for capturing vocalizations that is designed to avoid some of the limiting factors found in traditional bioacoustical methods, such as the impossibility of obtaining continuous long-term registers or analyzing amplitude due to the continuous change of distance between the subject and the position of the recording system. Using Bluetooth technology, vocalizations are captured and transmitted wirelessly into a receiving system without affecting the quality of the signal. The recordings of the proposed system were compared to those obtained as a reference, which were based on the coding of the signal with the so-called pulse-code modulation technique in WAV audio format without any compressing process. The evaluation showed p < .05 for the measured quantitative and qualitative parameters. We also describe how the transmitting system is encapsulated and fixed on the animal and a way to video record a spider monkey's behavior simultaneously with the audio recordings.

  4. Java Bluetooth wireless technology for evaluating student performance in classroom

    OpenAIRE

    Davidrajuh, Reggie

    2005-01-01

    This paper focuses on the use of Java Bluetooth wireless technology for evaluation of student performance in classroom. First, an introduction to Bluetooth wireless technology is given. Second, use of Java technology for developing wireless applications is explored. Third, a framework is given for identifying the processes involved in education that can make use of mobile technology. Finally, a case study is presented on wireless classroom application for student evaluation.

  5. Telemetry Measurement of Selected Biological Signal Using Bluetooth Technology

    Directory of Open Access Journals (Sweden)

    Martin Cerny

    2005-01-01

    Full Text Available This work treats of using the Bluetooth technology in biomedical engineering. The Bluetooth is used for transmission of measured data from pulse oximeter, ECG and monitor of blood pressure. OEM modules realize the devices for pulse oximetry and ECG. Both these realized devices can communicate with computer by Bluetooth technology and standard serial link too. The realized system of measuring devices is very flexible and mobile, because the Bluetooth technology is used and accumulators can supply the realized devices. It is possible to measure other physical values converted to voltage, because the used OEM module for pulse oximetry include A/D converter. The part of this work is software visualisation of measured values to.

  6. An Indoor Tracking System Based on Bluetooth Technology

    OpenAIRE

    Opoku, Samuel King

    2012-01-01

    Implementations of tracking systems have become prevalent issues in modern technology due to its advantage of location detection of objects. Objects are usually tracked using trackers based on GPS, GSM, RFID and Bluetooth signal strength implementation. These mechanisms usually require line of sight operations, limited coverage and low level programming language for accessing Bluetooth signal strength. This paper presents an alternative technique for tracking the movement of indoor objects ba...

  7. A Wireless Distributed Condition Monitoring System Based on Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Based on the discussion of bluetooth and network technology, this paper proposed an entire framework of a wireless distributed monitoring system by combining the characteristics of industry application. The feasibility of putting this kind of system in practice is discussed. The wireless distributed monitoring system can enhance the performance of condition monitoring more than the traditional one used now.

  8. Sharing of Learning Material on Mobile Devices Through Bluetooth Technology

    Directory of Open Access Journals (Sweden)

    Mohammed Abdallh Otair

    2010-03-01

    Full Text Available Education institutions are faced with the challenges of introducing new technology-enhanced learning services and utilize emerging technologies to enhance the efficiency of the learning process. Mobile learning provides the ability for users to learn anytime and anywhere using handheld devices with direct access to learning material. In developing countries, internet subscription is still expensive, which makes mobile learning as the most suitable bridge to access learning materials without much additional cost to be connected with the learning materials. In this paper, a new mobile learning system which aids teachers to transfer learning material files to students’ mobile devices through Bluetooth technology is developed.

  9. A Guide Management System Based on RFID and Bluetooth Technology

    Science.gov (United States)

    Li, Han-Sheng; Wang, Jun-Jun

    The most fundamental and important requirement of the tour guide in the tour process is to ensure the safety of tourists. In this paper, a portable guide management system is designed based on RFID technology, the Android software and blue-tooth communication technology. Through this system, the guide can get real-time information if some tourists are l behind, and send text message or dial to those tourists who are l behind immediately. The system reduces the roll-calling time on the tourists, improves the tour guide work efficiency and service quality.

  10. Wireless technologies of data transfer Wi-Fi, Bluetooth and ZigBee.

    Directory of Open Access Journals (Sweden)

    A. Yu. Makarenko

    2010-10-01

    Full Text Available This paper describes Wireless technologies of data transfer: Wi-Fi, Bluetooth and ZigBee. There are comparison characteristics of these technologies and possible application area for these technologies.

  11. Accuracy of Travel Time Estimation using Bluetooth Technology

    DEFF Research Database (Denmark)

    Araghi, Bahar Namaki; Skoven Pedersen, Kristian; Tørholm Christensen, Lars;

    2012-01-01

    Short-term travel time information plays a critical role in Advanced Traffic Information Systems (ATIS) and Advanced Traffic Management Systems (ATMS). In this context, the need for accurate and reliable travel time information sources is becoming increasingly important. Bluetooth Technology (BT......) has been used as a relatively new cost-effective source of travel time estimation. However, due to low sampling rate of BT compared to other sensor technologies, existence of outliers may significantly affect the accuracy and reliability of the travel time estimates obtained using BT. In this study......, the concept of outliers and corresponding impacts on travel time accuracy are discussed. Four different estimators named Min-BT, Max-BT, Med-BT and Avg-BT with different outlier detection logic are presented in this paper. These methods are used to estimate travel times using a BT derived dataset. In order...

  12. Modeling of human movement monitoring using Bluetooth Low Energy technology.

    Science.gov (United States)

    Mokhtari, G; Zhang, Q; Karunanithi, M

    2015-01-01

    Bluetooth Low Energy (BLE) is a wireless communication technology which can be used to monitor human movements. In this monitoring system, a BLE signal scanner scans signal strength of BLE tags carried by people, to thus infer human movement patterns within its monitoring zone. However to the extent of our knowledge one main aspect of this monitoring system which has not yet been thoroughly investigated in literature is how to build a sound theoretical model, based on tunable BLE communication parameters such as scanning time interval and advertising time interval, to enable the study and design of effective and efficient movement monitoring systems. In this paper, we proposed and developed a statistical model based on Monte-Carlo simulation, which can be utilized to assess impacts of BLE technology parameters in terms of latency and efficiency, on a movement monitoring system, and can thus benefit a more efficient system design.

  13. Modeling of human movement monitoring using Bluetooth Low Energy technology.

    Science.gov (United States)

    Mokhtari, G; Zhang, Q; Karunanithi, M

    2015-01-01

    Bluetooth Low Energy (BLE) is a wireless communication technology which can be used to monitor human movements. In this monitoring system, a BLE signal scanner scans signal strength of BLE tags carried by people, to thus infer human movement patterns within its monitoring zone. However to the extent of our knowledge one main aspect of this monitoring system which has not yet been thoroughly investigated in literature is how to build a sound theoretical model, based on tunable BLE communication parameters such as scanning time interval and advertising time interval, to enable the study and design of effective and efficient movement monitoring systems. In this paper, we proposed and developed a statistical model based on Monte-Carlo simulation, which can be utilized to assess impacts of BLE technology parameters in terms of latency and efficiency, on a movement monitoring system, and can thus benefit a more efficient system design. PMID:26737430

  14. Using Bluetooth Low Energy in Sensor Devices: Possible Applications in Welfare Technology

    OpenAIRE

    Hatlevoll, Daniel Berkvam

    2011-01-01

    In anticipation of the support for Bluetooth Low Energy in consumer products, this report provide an introduction to the technology, experiments on power consumption and the design of a custom implementation.With the new specification adopted during the summer of 2010, manufacturers had or intended to soon release components with support for Bluetooth Low Energy during this thesis. With the increasing availability the report aims to look at possible areas of use, with focus on the field of we...

  15. Indoor Positioning System using Bluetooth

    Directory of Open Access Journals (Sweden)

    Sahil Puri

    2015-05-01

    Full Text Available This Paper on Bluetooth Indoor Positioning System is the intersection of Bluetooth Technology and Indoor Positioning Systems. Almost every smartphone today is Bluetooth enabled, making the use of the technology more flexible. We aim at using the RSSI value of Bluetooth signals to track the location of a device.

  16. Indoor Positioning System using Bluetooth

    OpenAIRE

    Sahil Puri

    2015-01-01

    This Paper on Bluetooth Indoor Positioning System is the intersection of Bluetooth Technology and Indoor Positioning Systems. Almost every smartphone today is Bluetooth enabled, making the use of the technology more flexible. We aim at using the RSSI value of Bluetooth signals to track the location of a device.

  17. Reliability of Bluetooth Technology for Travel Time Estimation

    DEFF Research Database (Denmark)

    Araghi, Bahar Namaki; Olesen, Jonas Hammershøj; Krishnan, Rajesh;

    2015-01-01

    . However, their corresponding impacts on accuracy and reliability of estimated travel time have not been evaluated. In this study, a controlled field experiment is conducted to collect both Bluetooth and GPS data for 1000 trips to be used as the basis for evaluation. Data obtained by GPS logger is used...

  18. Bluetooth wireless technology for communications services in social and business

    Directory of Open Access Journals (Sweden)

    Gabriela Lorefice Sparacino

    2010-10-01

    Full Text Available La tecnología inalámbrica Bluetooth es un estándar de comunicaciones cuyo objetivo es, básicamente, eliminar los cables entre dispositivos móviles y PCs. Originalmente, Bluetooth fue creada con el fin de definir una especificación global y abierta para la comunicación inalámbrica de voz y datos a corta distancia utilizando radiofrecuencia. La especificación Bluetooth viene definida por rangos de frecuencia de radio que pueden ser bajos (del orden de 10 metros y ocasionalmente medios (sobre los 100 metros, con capacidad para la transmisión tanto de datos como de voz a más de 720 Kbps por canal. Está orientada al uso personal, pudiéndose extender sus usos a nivel empresarial. Tomando en consideración todo esto, el presente trabajo tiene como objetivo determinar el impacto de la tecnología inalámbrica Bluetooth sobre los servicios de comunicación en los ámbitos social y empresarial. Para lograrlo, se realizó una investigación de tipo de campo y descriptiva, en la modalidad de proyecto factible y el diseño estuvo apoyado bajo el criterio no experimental. Como instrumentos para la recolección de datos se utilizó la ficha de trabajo, donde se plasmaron los antecedes de la investigación y se elaboraron dos encuestas, una para recolectar información de la dimensión ámbito social y otra para la dimensión ámbito empresarial, obteniéndose como resultados en el ámbito social que la sociedad marabina está en disposición de incluir esta tecnología en sus procesos cotidianos pero a largo plazo mientras que en el ámbito empresarial los expertos encuestados mostraron gran interés por implantar esta tecnología en ciertas áreas de la empresa y coincidieron en realizar estudios de factibilidad y pequeñas pruebas.Palabras Clave:Inalámbrico, Bluetooth, Dispositivos Móviles, Manejo de Voz y Datos, Radiofrecuencia.

  19. Bluetooth for Audio Transmission

    OpenAIRE

    Zhao, Xuetao

    2013-01-01

    In recent years short-range wireless communication technology has gained great development. Bluetooth is one of the greatest technologies and it has wide range of applications being widespread in industries around the world. In modern information society Bluetooth technology has affected people’s work and lifestyle through the wide use of a variety of wireless communication devices (such as mobile phones, PDAs, etc.). With the further development of Bluetooth technology it will become the mai...

  20. Some drastic improvements found in the analysis of routing protocol for the Bluetooth technology using scatternet

    CERN Document Server

    Perwej, Yusuf; Jaleel, Uruj; Saxena, Sharad

    2012-01-01

    Bluetooth is a promising wireless technology that enables portable devices to form short-range wireless ad hoc networks. Unlike wireless LAN, the communication of Bluetooth devices follow a strict master slave relationship, that is, it is not possible for a slave device to directly communicate with another slave device even though they are within the radio coverage of each other. For inter piconet communication, a scatternet has to be formed, in which some Bluetooth devices have to act as bridge nodes between piconets. The Scatternet formed have following properties in which they are connected i.e every Bluetooth device can be reached from every other device, Piconet size is limited to eight nodes [1]. The author of this research paper have studied different type of routing protocol and have made efforts to improve throughput and reduce packet loss due to failure in the routing loop and increased mobility and improve the cohesive network structure, resolve the change topology conflicts [2], and a successful &...

  1. Overview and Evaluation of Bluetooth Low Energy: An Emerging Low-Power Wireless Technology

    OpenAIRE

    Josep Paradells; Joaquim Oller; Carles Gomez

    2012-01-01

    Bluetooth Low Energy (BLE) is an emerging low-power wireless technology developed for short-range control and monitoring applications that is expected to be incorporated into billions of devices in the next few years. This paper describes the main features of BLE, explores its potential applications, and investigates the impact of various critical parameters on its performance. BLE represents a trade-off between energy consumption, latency, piconet size, and throughput that mainly depends on ...

  2. Sharing of Learning Material on Mobile Devices Through Bluetooth Technology

    OpenAIRE

    Mohammed Abdallh Otair; Mohamad Al-Jedaiah; A. Y. Al-Zoubi; Anas Al-Refaee

    2010-01-01

    Education institutions are faced with the challenges of introducing new technology-enhanced learning services and utilize emerging technologies to enhance the efficiency of the learning process. Mobile learning provides the ability for users to learn anytime and anywhere using handheld devices with direct access to learning material. In developing countries, internet subscription is still expensive, which makes mobile learning as the most suitable bridge to access learning materials without m...

  3. Proposal for an ad hoc computer network in the military electronic systems department at the military academy applying bluetooth technology

    Directory of Open Access Journals (Sweden)

    Miroslav R. Terzić

    2011-01-01

    Full Text Available The historical development of the Bluetooth module is given in the introduction of this paper. The importance of the Bluetooth standard for wireless connection on small distances is shown as well. The organization of the Department of Military Electronic Systems is presented with its area of duties, subordinate sections and deployment. The concept of a local area network for this Department, using Bluetooth technology, includes network topology and working regimes based on the main characteristics and technical specifications for the connection with Bluetooth technology. The Department's disperse computer network is proposed as a scatter net where one piconetwork includes the Head of Department and the Heads of Sections while other piconetworks are formed from the Heads of Sections and their subordinates. The security aspect of the presented network deals with basic computer network attack categories, protection methods and aspects. The paper concludes with some recommendations for the local area network using Bluetooth technology with respect to its economical and security aspects as well as to the managing principles of the Department.

  4. Inside bluetooth low energy

    CERN Document Server

    Gupta, Naresh

    2013-01-01

    Bluetooth Low Energy (LE) is one of the latest enhancement to Bluetooth technology and, as the name suggests, it is aimed at ultra low power devices, such as heart rate monitors, thermometers, and sensors. Due to very low power consumption, devices compliant with this standard can operate for several years on coin cell batteries without the need for recharging. This cutting-edge book helps you understand the whats , whys , and hows of Bluetooth LE. It includes a broad view of the technology, identifies the various building blocks, and explains how they come together. You also find discussions on Bluetooth basics, providing the background information needed to master Bluetooth LE.The book explains the architecture of Bluetooth LE stack and the functionality provided by each of the layers. You find expert guidance in setting up your own system in a quick and efficient manner with inexpensive, easily available hardware and just a couple of PCs running Linux. This unique volume features two chapters that are dedi...

  5. Performance Modeling in Client Server Network Comparison of Hub, Switch and Bluetooth Technology Using Markov Algorithm and Queuing Petri Nets with the Security Of Steganography

    Directory of Open Access Journals (Sweden)

    V.B.Kirubanand

    2010-03-01

    Full Text Available The main theme of this paper is to find the performance of the Hub, Switch and Bluetooth technology using the Queueing Petri-net model and the markov algorithm with the security of Steganography. This paper mainly focuses on comparis on of Hub, switch and Bluetooth technologies in terms of service rate and arrival rate by using Markov algorithm (M/M(1,b/1. When comparing the service rates from the Hub network, switch network and the Bluetooth technology, it has been found that the service rate from the Bluetooth technology is very efficient for implementation. The values obtained from the Bluetooth technology can used for calculating the performance of other wireless technologies. QPNs facilitate the integration of both hardware and software aspects of the system behavior in the improved model. The purpose of Steganography is to send the hidden the information from one system to another through the Bluetooth technology with security measures. Queueing Petri Nets are very powerful as a performance analysis and prediction tool. By demonstrating the power of QPNs as a modeling paradigm in further fore coming technologies we hope to motivate further research in this area.

  6. Bluetooth: Opening a Blue Sky for Healthcare

    Directory of Open Access Journals (Sweden)

    X. H. Wang

    2006-01-01

    Full Text Available Over the last few years, there has been a blossoming of developing mobile healthcare programs. Bluetooth technology, which has the advantages of being low-power and inexpensive, whilst being able to transfer moderate amounts of data over a versatile, robust and secure radio link, has been widely applied in mobile healthcare as a replacement for cables. This paper discussed the applications of Bluetooth technology in healthcare. It started with the brief description of the history of Bluetooth technology, its technical characteristics, and the latest developments. Then the applications of Bluetooth technology in healthcare sector were reviewed. The applications are based on two basic types of links of Bluetooth technology: point-to-point link and point-to-multipoint link. The special requirements from healthcare and the challenges of successful application of Bluetooth in healthcare will be discussed. At last the future development of Bluetooth technology and its impacts on healthcare were envisioned.

  7. Experimental study of Bluetooth, ZigBee and IEEE 802.15.4 technologies on board high-speed trains

    OpenAIRE

    Higuera, Jorge; KARTSAKLI, Elli; Valenzuela González, José Luis; Alonso Zárate, Luis Gonzaga; Laya Romero, Andrés Ernesto; Martínez, Raquel; Aguilar, Alicia

    2012-01-01

    This paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional ground-to-train communication. The presented results have been obtained through experimental tests conducted at the Madrid- Barcelona high-speed rail line. A multiplatform communication system has been installed in a high-speed train, circulating at velocities up to 300 km/h, whereas autonomous d...

  8. 无线通信的变革-Bluetooth技术概述及其产品描述%Change of Wireless Communication--Bluetooth Technology Summary and Its Products Introduction

    Institute of Scientific and Technical Information of China (English)

    杜亚娟; 倪明; 陆新; 刘昭红

    2001-01-01

    Bluetooth technology is not only reform of wireless technology, but also current study hot point. This paper summarizes Bluetooth technology, then describes kinds of products based on Bluetooth technology, points out the spread and application of Bluetooth technology.%Bluetooth技术是无线技术的变革,是当前的研究热点.首先对前沿Bluetooth技术进行了综述,进而对基于Bluetooth技术的几种产品进行了具体描述,指出了Bluetooth技术的推广性和应用性.

  9. Overview and Evaluation of Bluetooth Low Energy: An Emerging Low-Power Wireless Technology

    Directory of Open Access Journals (Sweden)

    Josep Paradells

    2012-08-01

    Full Text Available Bluetooth Low Energy (BLE is an emerging low-power wireless technology developed for short-range control and monitoring applications that is expected to be incorporated into billions of devices in the next few years. This paper describes the main features of BLE, explores its potential applications, and investigates the impact of various critical parameters on its performance. BLE represents a trade-off between energy consumption, latency, piconet size, and throughput that mainly depends on parameters such as connInterval and connSlaveLatency. According to theoretical results, the lifetime of a BLE device powered by a coin cell battery ranges between 2.0 days and 14.1 years. The number of simultaneous slaves per master ranges between 2 and 5,917. The minimum latency for a master to obtain a sensor reading is 676 µs, although simulation results show that, under high bit error rate, average latency increases by up to three orders of magnitude. The paper provides experimental results that complement the theoretical and simulation findings, and indicates implementation constraints that may reduce BLE performance.

  10. Cognitive FH Channel Selection for Bluetooth Network

    OpenAIRE

    Yi Peng; Qingzhi Du; Long Hua; Yubing Shao

    2013-01-01

    Bluetooth is a short-range wireless technology that operates in the 2.4GHz unlicensed ISM band, so it will inevitably encounter the interference from other wireless systems and other Bluetooth piconets. Because of the flexible, efficient and reliable spectrum access by adapting the radio’s operating characteristics to the real-time conditions of the environment, cognitive radio technology is apply in Bluetooth network. In this paper, a novel cognitive FH channel selection method which is buil...

  11. Bluetooth Security Threats And Solutions: A Survey

    Directory of Open Access Journals (Sweden)

    Nateq Be-Nazir Ibn Minar

    2012-02-01

    Full Text Available Bluetooth technology has become an integral part of this modern society. The availability of mobile phones, game controllers, Personal Digital Assistant (PDA and personal computers has made Bluetooth a popular technology for short range wireless communication. However, as the Bluetooth technology becomes widespread, vulnerabilities in its security protocols are increasing which can be potentially dangerous to the privacy of a user’s personal information. The security issues of Bluetooth have been an active area of research for the last few years. This paper presents the vulnerabilities in the security protocols of this technology along with some past security threats and possible countermeasures as reported in the literatures which have been surveyed and summarized in this paper. It also presents some tips that end-users can implement immediately to become more cautious about their private information.Finally, the paper concludes with some recommendations for future security enhancements that can be implemented in the Bluetooth standard.

  12. The wireless data acquisition system based on Bluetooth

    Science.gov (United States)

    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

  13. A PSO-SVM Model for Short-Term Travel Time Prediction Based on Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    Qun Wang; Zhuyun Liu; Zhongren Peng

    2015-01-01

    The accurate prediction of travel time along roadway provides valuable traffic information for travelers and traffic managers. Aiming at short⁃term travel time forecasting on urban arterials, a prediction model ( PSO⁃SVM) combining support vector machine ( SVM) and particle swarm optimization ( PSO) is developed. Travel time data collected with Bluetooth devices are used to calibrate the proposed model. Field experiments show that the PSO⁃SVM model ’ s error indicators are lower than the single SVM model and the BP neural network (BPNN)model. Particularly, the mean⁃absolute percentage error (MAPE) of PSO⁃SVM is only 9�453 4 %which is less than that of the single SVM model ( 12�230 2 %) and the BPNN model ( 15�314 7 %) . The results indicate that the proposed PSO⁃SVM model is feasible and more effective than other models for short⁃term travel time prediction on urban arterials.

  14. 对蓝牙低功耗技术及其在无线遥控小车中的应用研究%Study on Bluetooth low energy technology and its application

    Institute of Scientific and Technical Information of China (English)

    韩玉坤

    2014-01-01

    蓝牙技术已经融入到我们生活中的每一个角落,所以,蓝牙的功耗问题也越来越受到关注。低功耗蓝牙技术是一种新型的无线通信技术,具有巨大的市场潜力以及广阔的适用范围,是传统蓝牙技术的补充,通过与传统蓝牙技术进行比较,说明低功耗蓝牙技术的优势所在。最后简单介绍了蓝牙低功耗技术的应用。%Bluetooth technology has been integrated into our lives every corner, so the Bluetooth power consumption is also being more concerned.Low-power Bluetooth technology is a new wireless communications technology,it is the supplement of tradition Bluetooth technology.it has huge market potential and broad scope of the supplement to traditional Bluetooth technology. Finally, this paper give a brief introduction to the application of Bluetooth low energy technology.

  15. 蓝牙4.0低功耗技术及其认证要求%Bluetooth 4.0 Low Energy Technology and Certification Requirements

    Institute of Scientific and Technical Information of China (English)

    吕松栋; 黎卓芳

    2011-01-01

    本文阐述了蓝牙4.0低功耗技术,包括其工作原理、框架结构等。并着重介绍了蓝牙低功耗技术认证测试的新要求,包括测试内容及测试工具的变化等。%The new Bluetooth specification 4.0 Low Energy(LE)technology is introduced in the paper. The details of Low Energy technology such as principles and framework are described.The newest certification requirements based on the Bluetooth Low Energy specification are analyzed and introduced.

  16. Adaptive Capacity Management in Bluetooth Networks

    DEFF Research Database (Denmark)

    Son, L.T.

    capacity allocation, network traffic control, inter-piconet scheduling, and buffer management. First, after a short presentation about Bluetooth technology, and QoS issues, queueing models and a simulation-based buffer management have been constructed. Then by using analysis and simulation, it shows some...... resource constraints in Bluetooth networks and adapt to mobility and frequent changes of the network topology, as well as to bursty traffic of Internet data applications, which are supposedly very common in Bluetooth. Some performance characteristics of these approaches are illustrated by analysis as well...... issues of the current Bluetooth specification, which lead to the following research to improve Bluetooth performance: Inter-piconet predictive scheduling, adaptive distributed network traffic control and hybrid distributed capacity allocation. These approaches are proposed as heuristic solutions...

  17. Dual Authentication For Bluetooth Connection

    Directory of Open Access Journals (Sweden)

    Diallo Alhassane Saliou

    2014-07-01

    Full Text Available Recently, Bluetooth technology is widely used by organizations and individuals to provide wireless personal area network (WPAN. This is because the radio frequency (RF waves can easily penetrate obstacles and can propagate without direct line-of-sight (LoS. These two characteristics have led to replace wired communication by wireless systems. However, there are serious security challenges associated with wireless communication systems because they are easier to eavesdrop, disrupt and jam than the wired systems. Bluetooth technology started with a form of pairing called legacy pairing prior to any communication. However, due to the serious security issues found in the legacy pairing, a secure and simple pairing called SPP was announced with Bluetooth 2.1 and later since 2007. SPP has solved the main security issue which is the weaknesses of the PIN code in the legacy pairing, however it has been found with some vulnerabilities such as eavesdropping and man-in-the-middle (MITM attacks. Since the discovery of these vulnerabilities, some enhancements have been proposed to the Bluetooth Specification Interest Group (SIG which is the regulatory body of Bluetooth technology; nevertheless, some proposed enhancements are ineffective or are not yet implemented by Manufacturers. Therefore, an improvement of the security authentication in Bluetooth connection is highly required to overcome the existing drawbacks. This proposed protocol uses Hash-based Message Authentication Code (HMAC algorithm with Secure Hash Algorithm (SHA-256. The implementation of this proposal is based on the Arduino Integrated Development Environment (IDE as software and a Bluetooth (BT Shield connected to an Arduino Uno R3 boards as hardware. The result was verified on a Graphical User Interface (GUI built in Microsoft Visual Studio 2010 with C sharp as default environment. It has shown that the proposed scheme works perfectly with the used hardware and software. In addition, the

  18. Diagnostic X-ray Test System Based on Bluetooth Technology%基于蓝牙技术的诊断X射线检测系统

    Institute of Scientific and Technical Information of China (English)

    杨建; 方方

    2013-01-01

    根据蓝牙技术的特点,把蓝牙技术应用到诊断X射线检测仪中,并结合计算机技术实现了诊断X射线无线检测系统。给出了蓝牙模块与仪器的硬件连接图及计算机上串口通讯软件的程序设计,最后给出了诊断X射线检测系统的蓝牙连接通讯情况。%Bluetooth technology is applied to diagnostic X -ray test meter according to it ’s characteristics, di-agnostic X-ray test system is achieved with diagnostic X -ray test meter and computer technology .There gives the hardware structure of Bluetooth Module in diagnostic X -ray test meter and the program design of serial port communication soft in computer , final the Bluetooth communication situation in the diagnostic X -ray test sys-tem.

  19. BLUETOOTH LOW ENERGY COMPARED TO ZIGBEE AND BLUETOOTH CLASSIC

    OpenAIRE

    VADYM, SAMOSUYEV

    2010-01-01

    The thesis work is based on theoretical research and comparative analysis of the most remarkable short range wireless technologies as Bluetooth and ZigBee standards. Nowadays two competitive technical standards approached a strategic aim. They both integrated customer’s technical needs to have reliable, secure, low consumption and low cost technologies for controlling and monitoring applications with low data rate communication. Both technologies can be applied to serve a big variety of...

  20. Sensor Protocol for Roaming Bluetooth Multiagent Systems

    OpenAIRE

    Neungsoo Park; Bijoy Kumar Mandal; Young-Ho Park

    2013-01-01

    Bluetooth is a low-cost, short-range wireless technology capable of providing many communication functionalities. However, Bluetooth does not support any sensor protocol which is related to a roaming and in which handoff occurs dynamically when a Bluetooth device is moving away from coverage of the network. If a device is losing its connection to the master device, there is no provision which transfers it to another master. Handoff is not possible in a piconet, as in order to stay within the ...

  1. Servicio de M-comercio: Sistema de interacción entre un centro comercial y sus visitantes utilizando las tecnologías WAP y Bluetooth M-commerce service: Interaction system between a mall and visitors using WAP and Bluetooth technologies

    Directory of Open Access Journals (Sweden)

    Jorge Gómez Rojas

    2013-04-01

    Full Text Available El servicio de interacción es un medio de comunicación que mejora las relaciones comerciales entre los centros comerciales y sus visitantes, utilizando las tecnologías de comunicaciones móviles WAP y Bluetooth como una nueva alternativa de negocios, y sin usar la red del operador de telefonía móvil celular. El sistema de interacción mencionado permite el intercambio de información de un grupo potencial de compradores entre los visitantes de un centro comercial y la administración de los diferentes comercios utilizando el teléfono celular. El sistema se compone de una aplicación móvil en J2ME, puntos de acceso Bluetooth y Wi-Fi, un servidor Bluetooth y un servidor Web con aplicaciones para ser accedidas por dispositivos móviles.The interaction service is a means of communication that improves trade relations between the mall and visitors using mobile communications technology WAP and Bluetooth, as a new business alternative, and without operator's network using the mobile phone. The proposed system of interaction, allows the exchange of information from a potential pool of buyers among visitors to a shopping center and the administration of the various shops, through the cell phone. The system consists of a mobile application in J2ME, the access points, Bluetooth server, and Web server with applications to mobile devices.

  2. Bluetooth enables in-door mobile location services

    DEFF Research Database (Denmark)

    Thongthammachart, Saowanee; Olesen, Henning

    2003-01-01

    mobile location techniques can also provide the user's position, but the accuracy is rather low. In order to improve the accuracy and make location-based services really attractive, existing approaches must be supplemented by new technologies. Wireless short-range technologies like Bluetooth could...... be candidates for solving these problems. This paper shows that Bluetooth can act as a key enabler of mobile location services in an in-door environment. The advantage of Bluetooth technology is, that it can provide rather precise location data inside a building or hotspot area, while the Bluetooth terminal...

  3. Bluetooth low energy based ticketing systems

    OpenAIRE

    Kuchimanchi, Sriharsha

    2015-01-01

    This thesis proposes a Bluetooth Low Energy (BLE) based payment solution for public transportation. The thesis first reviews some of the ‘Mobile payment solutions´. Traditionally, these services have revolved around technologies like Barcodes, Quick Response (QR) codes, Short Messaging Services (SMS) etc. However, with the advent of smartphones equipped with Bluetooth controllers and security chips, a number of innovative payment services are being studied. Furthermore, this thesis a...

  4. Bluetooth Based Android Controlled Robot

    Directory of Open Access Journals (Sweden)

    Rowjatul Zannat Eshita

    2016-06-01

    Full Text Available The project aims in designing a Robot that can be operated using Android Apps. The controlling of the Robot is done wirelessly through Android smart phone using the Bluetooth module feature present in it. Here in the project the Android smart phone is used as a remote control for operating the Robot. Android is a software stack for mobile devices that includes an operating system, middleware and key applications. Android boasts a healthy array of connectivity options, including Wi-Fi, Bluetooth, and wireless data over a cellular connection (for example, GPRS, EDGE (Enhanced Data rates for GSM Evolution, and 3G. Android provides access to a wide range of useful libraries and tools that can be used to build rich applications. Bluetooth is an open standard specification for a radio frequency (RF-based, short-range connectivity technology that promises to change the face of computing and wireless communication. It is designed to be an inexpensive, wireless networking system for all classes of portable devices, such as laptops, PDAs (personal digital assistants, and mobile phones. The controlling device of the whole system is a Microcontroller. Bluetooth module, DC motors are interfaced to the Microcontroller. The data received by the Bluetooth module from Android smart phone is fed as input to the controller. The controller acts accordingly on the DC motors of the Robot. The robot in the project can be made to move in all the four directions using the Android phone. The direction of the robot is indicated using LED indicators of the Robot system. In achieving the task the controller is loaded with a program written using Embedded ‘C’ language.

  5. iBeacon Technology in Welfare: A study of Bluetooth Low Energy for Indoor Positioning

    OpenAIRE

    Perez Barragan, Sara

    2014-01-01

    Nowadays people live longer and the general population is aging. This phenomenon affects health care services that are experiencing increased costs and pressure. As a result new technological solutions for assisting and preserving the health of the elderly are needed. In this thesis, a solution for determining the position of a person within a house are researched, implemented and evaluated. Background theory related to indoor positioning existing technologies and techniques is studied and pr...

  6. Dual Authentication For Bluetooth Connection

    OpenAIRE

    Diallo Alhassane Saliou; Wajdi Fawzi Mohammed Al-Khateeb

    2014-01-01

    Recently, Bluetooth technology is widely used by organizations and individuals to provide wireless personal area network (WPAN). This is because the radio frequency (RF) waves can easily penetrate obstacles and can propagate without direct line-of-sight (LoS). These two characteristics have led to replace wired communication by wireless systems. However, there are serious security challenges associated with wireless communication systems because they are easier to eavesdrop, disrupt and jam t...

  7. On the Potential of Bluetooth Low Energy Technology for Vehicular Applications

    OpenAIRE

    Lin, Jiun-Ren; Talty, Timothy; Tonguz, Ozan K.

    2015-01-01

    With the increasing number of sensors in modern vehicles, using an Intra-Vehicular Wireless Sensor Network (IVWSN) is a possible solution for the automotive industry to address the potential issues that arise from additional wiring harness. Such a solution could help car manufacturers develop vehicles that have better fuel economy and performance, in addition to supporting new applications. However, which wireless technology for IVWSNs should be used for maximizing the aforementioned benefits...

  8. 蓝牙技术在手机网银和移动支付中的应用%The Application of Bluetooth Technology in Mobile Network Banking and Mobile Payment

    Institute of Scientific and Technical Information of China (English)

    杨威; 王迪

    2014-01-01

    本文简要介绍了USB KEY和蓝牙的技术特点,提供了一种利用蓝牙技术实现在手机等移动设备上完成身份认证密钥功能的方式,把USB KEY的认证方式向移动智能终端上进行了拓展。%This paper briefly introduces the characteristics of USB KEY and Bluetooth technology, providing a way to im-plement identity authentication by Bluetooth technology in mobile devices such as mobile phone.

  9. Providing Delay Guarantees in Bluetooth

    NARCIS (Netherlands)

    Ait Yaiz, Rachid; Heijenk, Geert; Titsworth, F.

    2003-01-01

    Bluetooth polling, also referred to as Bluetooth MAC scheduling or intra-piconet scheduling, is the mechanism that schedules the traffic between the participants in a Bluetooth network. Hence, this mechanism is highly determining with respect to the delay packets experience in a Bluetooth network. I

  10. 基于Android系统的生理数据蓝牙传输技术%Technology of Data Transmission through Bluetooth in Android

    Institute of Scientific and Technical Information of China (English)

    熊狮; 吴效明

    2012-01-01

    Objective: This paper introduces the mobile physiological parameter monitoring system based on the Smartphone with the Android operating system and realizes the transmission of physiological data from the detecting module to Smartphone. Methods: Embedding Bluetooth module in the module of detecting physiological parameters, so the detected physiological data such as ECG can be sent to Smartphone with Android system. The Smartphone utilizes Bluetooth API to realize the operation of opening the Bluetooth devices and searching the around Bluetooth devices, to realize the data transmission by the Socket connection, to draw ECG on the Smartphone canvas by using canvas programming API. Finally we develop the software which realizes receiving, showing and calculating the ECG data. Results: The Smartphone draws the ECG on the surface, calculating the heart rate and ringing an alarm voice when the heart rate is too high or too low. A study of the technology of collecting physiological parameters through the interface of Bluetooth in Android Smartphone is made in this paper. Conclusions: The paper is based on the Mobile Medicine System, realizes the technology of data transmission through Bluetooth in Android system, which has a great broad application.%目的:本文建立基于Android智能系统的生理参数移动监护系统,实现生理数据从监测模块向智能手机端传输.方法:在生理参数检测端增加蓝牙传输模块,将检测端采集到的心电等生理数据发送至Android系统智能手机端,智能手机端利用Android蓝牙API开发类,对手机端蓝牙实现打开蓝牙、搜索附近蓝牙设备等基本操作,再利用Socket连接,实现数据传输.同时手机端利用界面编程类,实现心电图界面显示,利用文件操作类实现数据存储和初步的心率计算,最终实现心电等生理参数的接收、显示、心率分析以及传输.结果:Android系统智能手机端接收蓝牙模块发送的心电数

  11. Smart Living Using Bluetooth-Based Android Smartphone

    Directory of Open Access Journals (Sweden)

    Hao Shi

    2013-03-01

    Full Text Available With the development of modern technology and Android Smartphone, Smart Living is graduallychanging people’s life. Bluetooth technology, whichaims to exchange data wirelessly in a short distanceusing short-wavelength radio transmissions, is providing a necessary technology to create convenience,intelligence and controllability. In this paper, anew Smart Living system called home lighting controlsystem using Bluetooth-based Android Smartphone isproposed and prototyped. First Smartphone, SmartLiving and Bluetooth technology are reviewed. Second the system architecture, communication protocoland hardware design aredescribed. Then the design of a Bluetooth-based Smartphone application andthe prototype are presented. It is shown that Android Smartphone can provide a platform to implementBluetooth-based application for Smart Living

  12. Bluetooth Low Energy

    OpenAIRE

    Nikki, Juha-Matti

    2014-01-01

    Opinnäytetyössäni esittelen Bluetooth low energyn eri osa-alueita. Historiassa käsittelen miten Bluetooth sai alkunsa ja kuinka siitä muodostui yksi tärkeimmistä langattomista teknologioista. Kerron myös hauskan faktan siitä, minkä vuoksi tätä teknologiaa kutsutaan Bluetoothiksi. Historian yhteydessä mainitsen järjestön nimeltä Bluetooth SIG. Se on Bluetoothin kannalta yksi kaikkein merkittävimmistä järjestöistä ja sillä on suuri rooli valvoa sekä kehittää Bluetooth-teknologiaa eteenpäin....

  13. Implementing Bluetooth LE in a Tracking Device

    OpenAIRE

    Oinas, Jaakko

    2015-01-01

    The final year project described in this thesis dealt with integrating Bluetooth low energy (LE) technology to a tracking device system. The project was part of a larger research project of Navigil Ltd, where the possibilities of utilizing Bluetooth LE in a tracking device system were studied. The ML7105 system-on-chip, which offers possibility for LE technology, had already been chosen in the project and it was also used in this final year project. The final year project included studying th...

  14. Information Delivery System through Bluetooth in Ubiquitous Networks

    CERN Document Server

    Devi, D Asha; Pavani, V L; Geethanjali, N

    2010-01-01

    computers into the real world, to serve humans where the ubiquitous network is the underneath infrastructure. In order to provide ubiquitous services (u-Service) which deliver useful information to service users without human intervention, this paper implements a proactive information delivery system using Bluetooth technology. Bluetooth is a lowpowered networking service that supports several protocol profiles, most importantly file transfer.Combined together, ubiquitous computing and Bluetooth ha e the potential to furnish ubiquitous solutions (u-Solutions) that are efficient, employ simplified design characteristics, and collaboratively perform functions they are otherwise not capable. Thus, this paper first addresses the current Bluetooth technology. Then, it suggests and develops the proactive information delivery system utilizing Bluetooth and ubiquitous computing network concepts. The proactive information delivery system can be used in many ubiquitous applications such as ubiquitous commerce (u-Commer...

  15. Bluetooth Hacking: A Case Study

    Directory of Open Access Journals (Sweden)

    Dennis Browning

    2009-06-01

    Full Text Available This paper describes a student project examining mechanisms with which to attack Bluetooth-enabled devices. The paper briefly describes the protocol architecture of Bluetooth and the Java interface that programmers can use to connect to Bluetooth communication services. Several types of attacks are described, along with a detailed example of two attack tools, Bloover II and BT Info.

  16. The application of Bluetooth technology in the remote power line communication%蓝牙技术在远程电力线通信中的应用

    Institute of Scientific and Technical Information of China (English)

    贺良华; 史永乐

    2011-01-01

    针对目前电力线通信PLC存在通信距离有限的问题,提出了二种基于蓝牙技术以实现远程通信的方案.该方案以通用电力线载波通信芯片LM1893和蓝牙模块WRAP THOR 2022-1为核心,以AT89C51为主控单元设计了一个远程电力线载波通信系统,以解决音频信号的跨变压器传输问题.硬件系统由8个模块组成,并对系统整体的软件进行了设计,经过软硬件的双重调试,为实现远程电力线通信提供了一种可行的方案.%As the current power line communication is limited in the short distance communication, a system based on Bluetooth technology is proposed and designed for remote power line communication, which, takes the universal power line carrier communication chips LM1893 and Bluetooth modules WRAP THOR 2022-1 as the core,and uses the AT89C51 as the main control unit. The hardware of this system is consist of eight modules. The software of the whole system has also been designed. Through debugging, the system is proved to be a feasible scheme for realizing the remote power line communication.

  17. Intra-piconet scheduling in bluetooth

    NARCIS (Netherlands)

    Yaiz, R. Ait

    2004-01-01

    The trend of dynamically interconnecting the personal devices that people carry with them has led to the introduction of personal area networks (PANs) and personal networks (PNs). The Bluetooth® wireless access technology is believed to be a potential enabler of PANs and PNs. This dissertation focus

  18. STUDI DAN UJI COBA TEKNOLOGI BLUETOOTH SEBAGAI ALTERNATIF KOMUNIKASI DATA NIRKABEL

    Directory of Open Access Journals (Sweden)

    Yulia Yulia

    2004-01-01

    Full Text Available Bluetooth is a new emerging technology. This technology gives significant changes for electronic devices that we are using. If we look around, a keyboard is connected to a computer. So does a printer, a mouse, a monitor and so on. This condition creates a problem of so many scattered wires installed in the offices, houses and other places. Another problem is how to inspect the damaging or boken wires. In this paper, we will have a discussion on specific applications of bluetooth such as services provided by the bluetooth technology; bluetooth method - how bluetooth devices make connections in a piconet; as well as investigation on bluetooth protocol stack. Bluetooth has succesfully built easy connection among devices from many vendor without using cables, with less power dan money. By using bluetooth, we can build small network or Piconet, consisting of several devices without cables. Abstract in Bahasa Indonesia : Bluetooth adalah suatu teknologi baru yang mulai dikenal dan digunakan. Teknologi ini memberikan perubahan yang signifikan terhadap peralatan elektronik yang kita gunakan. Jika kita melihat sekeliling kita dimana keyboard dihubungkan pada komputer. Demikian juga halnya dengan printer, mouse, monitor dan lain sebagainya. Semua peralatan itu dihubungkan dengan menggunakan kabel. Akibatnya terjadi masalah banyak kabel yang dibutuhkan di kantor, rumah atau tempat-tempat lainnya. Masalah lain yang ditemui adalah bagaimana menelusuri kabel-kabel yang terpasang jika ada suatu kesalahan atau kerusakan. Bluetooth memperbaiki penggunaan teknologi kabel yang cenderung menyulitkan ini dengan cara menghubungkan beberapa peralatan tanpa menggunakan kabel. Pada karya tulis ini, dibahas aplikasi spesifik bluetooth, antara lain servis-servis apa saja yang disediakan oleh teknologi bluetooth; cara kerja bluetooth yaitu bagaimana bluetooth device melakukan koneksi di dalam sebuah piconet serta bluetooth protocol stack. Bluetooth telah berhasil

  19. 无线蓝牙技术简化移动打印%Bluetooth Wireless Technology Simplifies Mobile Printing

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    随着支持Bluetooth技术的打印机、打印机转接器、相机与照相手机的普及,蓝牙技术(Bluetooth)无线技术使照片与文件的打印倍加方便,倍加有趣。Bluetooth打印技术为照相手机的最主要用途之一,让消费者能轻松快捷地实时拍摄数码照片,并以无线方式打印。为了让大众认识Bluetooth无线技术所支持的各种打印方式,负责制订与推广全球无线技术标准的业界机构BluetoothSIG(SIG,蓝牙技术联盟)宣布,将八月定为“Bluetooth打印月”。

  20. Sistema de posicionament en interiors basat en Bluetooth Low Energy

    OpenAIRE

    Corbacho Salas, Agustín

    2014-01-01

    Bluetooth Low Energy is a new radio interface offered in all new smartphones. In addition to be able to transmit data, BLE can be used to locate things. [ANGLÈS] Bluetooth Low Energy is the new specification of Bluetooth available for all new smartphones. It is a new low power consumption technology aimed to transmit small amount of data. In addition to be able to transmit data, BLE can be used to locate things. iBeacon protocol, which uses BLE, is aimed at that objective with special atte...

  1. Analysis of Latency Performance of Bluetooth Low Energy (BLE) Networks

    OpenAIRE

    Keuchul Cho; Woojin Park; Moonki Hong; Gisu Park; Wooseong Cho; Jihoon Seo; Kijun Han

    2014-01-01

    Bluetooth Low Energy (BLE) is a short-range wireless communication technology aiming at low-cost and low-power communication. The performance evaluation of classical Bluetooth device discovery have been intensively studied using analytical modeling and simulative methods, but these techniques are not applicable to BLE, since BLE has a fundamental change in the design of the discovery mechanism, including the usage of three advertising channels. Recently, there several works have analyzed the ...

  2. Personnel Security System using Bluetooth Low Energy (BLE) Tag

    OpenAIRE

    K.Gautham; G.Raghav; V. Krishnamurthy; N.R.Raajan

    2013-01-01

    One of the primary aspects of Personal security is through various user authentication techniques like biometrics, password, Smart Card, etc. We propose to design a personal security authentication system using the commonly available Bluetooth technology. The authentication is done on a fixed device, connected to the web and the identity is provided by a mobile device commonly carried by the person. Almost every cell phone has Bluetooth® transceiver for connecting to a wireless headset or to ...

  3. Using Bluetooth Low Energy in smartphones to map social networks

    OpenAIRE

    Townsend, Samuel; Mark E Larsen; Tjeerd W. Boonstra; Christensen, Helen

    2015-01-01

    Social networks have an important role in an individual's health, with the propagation of health-related features through a network, and correlations between network structures and symptomatology. Using Bluetooth-enabled smartphones to measure social connectivity is an alternative to traditional paper-based data collection; however studies employing this technology have been restricted to limited sets of homogenous handsets. We investigated the feasibility of using the Bluetooth Low Energy (B...

  4. Research on Applying Bluetooth to an Elevator Wireless Control System

    Institute of Scientific and Technical Information of China (English)

    MA Jian-cang; LUO Ya-jun; ZHAO Yu-ting

    2003-01-01

    Compared with other elevator control systems, the wireless control system has many advanta ges such as easy to install and maintain. Bluetooth is a new technology of short-range wireless communication, and the idea of applying Bluetooth to the elevator wireless control system is expected to get wide application. In this paper, a wireless control prototype system is introduced, and the experimentsof this system proved the feasibility of this idea.

  5. Design and Development of “μMeter” - An Innovative Bluetooth Application

    Directory of Open Access Journals (Sweden)

    Gagan Singhal

    2009-10-01

    Full Text Available Bluetooth today, has conquered almost all mobile devices including Personal Digital Assistants (PDAs,handhelds, smart phones and mobile phones. Unlike the internet, where one has to rely on a third partyto provide a wireless connection, Bluetooth is inexpensive and easily available with no dependence onmanufacturers or service providers and can prove beneficial in short range communication. Aiming toinculcate wireless benefits in classrooms with virtually no expense and in an attempt to achieve moreinteractivity with students, a Bluetooth application “μMeter” is developed using Bluetooth technology toform a Wireless LAN in a classroom. . It helps to boost interactivity with students, thereby making classesmore effective. In this paper, we first give a brief overview of Bluetooth technology and its applications.Details of the application development platform and Bluetooth requirements are then given. The resultsof the “μMeter” application are presented, followed by the conclusion and recommendations on futurework.

  6. Attacks on Bluetooth Security Architecture and Its Countermeasures

    Science.gov (United States)

    Iqbal, Mian Muhammad Waseem; Kausar, Firdous; Wahla, Muhammad Arif

    WPANs compliment the traditional IEEE 802.11 wireless networks by facilitating the clients with flexibility in network topologies, higher mobility and relaxed configuration/hardware requirements. Bluetooth, a WPAN technology, is an open standard for short-range radio frequency (RF) communication. However, it is also susceptible to typical security threats found in wireless LANs. This paper discuses some of the attack scenarios against the bluetooth network such as hostile intrusion, active Man-in-the-Middle (MITM) attack using unit key and various forms of denial of service (DoS) attacks. These threats and attacks compromise the confidentiality and availability of bluetooth data and services. This paper proposes an improved security architecture for bluetooth device which provides protection against the above mentioned attacks.

  7. A Novel Bluetooth Man-In-The-Middle Attack Based On SSP using OOB Association model

    OpenAIRE

    Saravanan, K.; Vijayanand, L.; Negesh, R. K.

    2012-01-01

    As an interconnection technology, Bluetooth has to address all traditional security problems, well known from the distributed networks. Moreover, as Bluetooth networks are formed by the radio links, there are also additional security aspects whose impact is yet not well understood. In this paper, we propose a novel Man-In-The-Middle (MITM) attack against Bluetooth enabled mobile phone that support Simple Secure Pairing(SSP). From the literature it was proved that the SSP association models su...

  8. Bluetooth Frequency Hop Selection Kernel Impact on â Inter-Piconetâ Interference

    OpenAIRE

    Ballagh, Jason

    2003-01-01

    The Bluetooth wireless transmission standard provides a low-power data link between electronic devices over relatively short ranges. These links, also known as piconets, transmit using frequency hopping spread spectrum (FHSS) to send information over the air. As more applications for Bluetooth technology become available, the number of Bluetooth devices will continue to increase. With this increase in use, there will be a decrease in performance that can be attributed to Blueto...

  9. Networking solutions for connecting bluetooth low energy enabled machines to the internet of things

    OpenAIRE

    Nieminen, Johanna; Gómez Montenegro, Carlos; Isomaki, Markus; Savolainen, Teemu; Patil, Basavaraj; Shelby, Zach; Oller Bosch, Joaquim

    2014-01-01

    The next wave driving the expansion of the Internet will come from the Internet of Things. Bluetooth LE is a rapidly emerging ultra-low-power radio technology expected to be incorporated in billions of IoT devices in the next few years. Consequently, it is particularly important to specify Internet connectivity solutions for Bluetooth LE. In this article we present such solutions based on the ongoing standardization work in the IETF and Bluetooth Special Interest Group. We prove the feasibili...

  10. Mobile robot control using Bluetooth Low Energy

    OpenAIRE

    Riemer, Till

    2012-01-01

    This thesis gives a working example on how to design and implement a remotely controllable embedded system consisting of two subsystems who are communicating with each other using Bluetooth Low Energy. The subsystems are a movable peripheral based on the Parallax Sumobot development kit, an Atmel AVR Butterfly, the Texas Instruments CC2540 development kit and a user input interface using the Apple iPhone 4S. The first part is describing the fundamentals of the technologies and devices use...

  11. Providing QoS in Bluetooth

    NARCIS (Netherlands)

    Ait Yaiz, Rachid; Heijenk, Geert; Hariri, S.

    2005-01-01

    Bluetooth polling, also referred to as Bluetooth MAC scheduling or intra-piconet scheduling, is the mechanism that schedules the traffic between the participants in a Bluetooth network. Hence, this mechanism is highly determining with respect to the delay packets experience in a Bluetooth network. I

  12. Bluetooth Communication for Battery Powered Medical Devices

    Science.gov (United States)

    Babušiak, Branko; Borik, Štefan

    2016-01-01

    wireless communication eliminates obtrusive cables associated with wearable sensors and considerably increases patient comfort during measurement and collection of medical data. Wireless communication is very popular in recent years and plays a significant role in telemedicine and homecare applications. Bluetooth technology is one of the most commonly used wireless communication types in medicine. This paper describes the design of a universal wireless communication device with excellent price/performance ratio. The said device is based on the low-cost RN4020 Bluetooth module with Microchip Low-energy Data Profile (MLDP) and due to low-power consumption is especially suitable for the transmission of biological signals (ECG, EMG, PPG, etc.) from wearable medical/personal health devices. A unique USB dongle adaptor was developed for wireless communication via UART interface and power consumption was evaluated under various conditions.

  13. Bluetooth as a Playful Public Art Interface

    Science.gov (United States)

    Stukoff, Maria N.

    This chapter investigates how the application of emergent communication technologies assisted in the design of playful art experience in a public place. Every Passing Moment (EPM), was a mobile public artwork that tracked and recorded any discoverable Bluetooth device to automatically seed a flower in a virtual garden projected onto an urban screen. The EPM was the first public art work to run blu_box, a custom-designed Bluetooth system for mobile telephony. The aim of blu_box was to build a system that supported playful interactions between the public and an urban screen, openly accessible to anyone with a Bluetooth-enabled mobile phone. This participatory engagement was observed in EPM on three levels, namely; unconscious, conscious, and dynamic play. Furthermore, this chapter highlights how sound and face-to-face communication proved imperative in the play dynamics of EPM. In conclusion, this chapter proposes ways in which the use of emergent communication technologies in public places, especially when interfaced with urban screening platforms, can construct playful city spaces for the public at large.

  14. Bluetooth LE (Low Energy) Connection Management

    OpenAIRE

    Khan, Olid Hossain

    2015-01-01

    This Bachelor’s thesis describes an Android Bluetooth Low Energy connection management collects sensor measurement data frequently and continuously from Bluetooth Low Energy devices to an Android phone. Currently there exists no such application that can connect with Bluetooth Low Energy devices continuously in a very short interval of time. Existing applications are also facing problems to establish a Bluetooth connection with Bluetooth Low Energy devices smoothly. The target of this res...

  15. Bluetooth low energy: wireless connectivity for medical monitoring.

    Science.gov (United States)

    Omre, Alf Helge

    2010-03-01

    Electronic wireless sensors could cut medical costs by enabling physicians to remotely monitor vital signs such as blood pressure, blood glucose, and blood oxygenation while patients remain at home. According to the IDC report "Worldwide Bluetooth Semiconductor 2008-2012 Forecast," published November 2008, a forthcoming radio frequency communication ("wireless connectivity") standard, Bluetooth low energy, will link wireless sensors via radio signals to the 70% of cell phones and computers likely to be fitted with the next generation of Bluetooth wireless technology, leveraging a ready-built infrastructure for data transmission. Analysis of trends indicated by this data can help physicians better manage diseases such as diabetes. The technology also addresses the concerns of cost, compatibility, and interoperability that have previously stalled widespread adoption of wireless technology in medical applications. PMID:20307407

  16. Personnel Security System using Bluetooth Low Energy (BLE Tag

    Directory of Open Access Journals (Sweden)

    K.Gautham

    2013-04-01

    Full Text Available One of the primary aspects of Personal security is through various user authentication techniques like biometrics, password, Smart Card, etc. We propose to design a personal security authentication system using the commonly available Bluetooth technology. The authentication is done on a fixed device, connected to the web and the identity is provided by a mobile device commonly carried by the person. Almost every cell phone has Bluetooth® transceiver for connecting to a wireless headset or to a host PC. Many new cars have Bluetooth to let you talk hands free while driving. Bluetooth has thus emerged as a pervasive technology. The aim of the paper is to describe a Personnel Security System using Bluetooth Low Energy (BLE Tag which operates on a coin cell battery that will discover all the available low energy devices in the vicinity and keep track of when it entered and when it left the zone. In addition, this tag can also be used as a positioning device by measuring the Received Signal Strength (RSSI value. The initial phase is aimed at designing the hardware for the tag. The second phase is initiated towards programming the tag. The final phase is targeted towards testing the designed hardware module and developing a Personnel Security System.

  17. Design and Application of the Hospital Newborn Security System Based on Bluetooth Technology%基于蓝牙技术的医院新生儿安保系统的设计与应用

    Institute of Scientific and Technical Information of China (English)

    郭方达

    2016-01-01

    目的:基于蓝牙技术开发医院新生儿安保系统,解决目前新生儿在医院可能出现的各种安全问题。方法本系统采用无线通信技术为数据传输途径,通过扩展蓝牙模块建立医院内部网络;新生儿腕带由蓝牙传感器和医用硅橡胶带组成。结果当医院端添加新生儿腕带时,只需要增加蓝牙节点,就可以实现产妇及陪同家属与医院护理人员实时对新生儿身份进行核实和跟踪监定位的功能。结论该系统的应用,可有效地防止新生儿发生被盗、抱错等医疗事故的发生,为新生儿的安全提供了保障。%Objective To develop the hospital newborn security system so as to solve the security problems that may arise in the current neonatal hospital based on Bluetooth technology.MethodsThe system used wireless communication technology as the main transport route. By extending the Bluetooth module, the intranet in the hospital was established. The newborn wrist band contains a Bluetooth transmitter and a medical silicone rubber band.ResultsWhen the hospital terminal of the system is connected to the newborn bracelet, the Bluetooth node can be activated and added so as to help the postpartum women, family members, and health care providers with real-time monitoring, such as identity veriifcation and real-time location and tracking of newborns.ConclusionThe system can effectively prevent the occurrence of neonatal abduction, and other medical accidents such as wrong identiifcation of newborns. The application of the system can effectively improve hospital newborn security.

  18. Bluetooth Broadcasting : How far can we go? An experimental study

    NARCIS (Netherlands)

    Aiello, Marco; Jong, Remko de; Nes, Joel de

    2009-01-01

    Bluetooth is a wireless communication technology to build small networks of devices. It was designed as a cable replacement technology. Given its widespread adoption, especially in mobile devices, new uses are possible today. For instance, one can broadcast messages to nomadic users based on their l

  19. 手机蓝牙技术在智能电子锁控制系统中的研究%Research of the Intelligent Electronic Lock Control System Based on the Mobile Phone Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    刘少军; 王瑜瑜

    2016-01-01

    In this paper the design of a smart electronic lock is designed on the mobile phone platform using Bluetooth technology,which provides a new idea of wireless remote control electronic lock.First,the functions of the electronic lock are introduced,and then the hardware and software design of the system is elaborated.The mo-bile phone Bluetooth and the Bluetooth module HC 06 of the single chip are used as the client and the server re-spectively.The client is programmed using JAVA in App Inventor,while the server is written in C language for MCU control in order to carry on serial communication.The results prove that the electronic lock can receive sig-nals from the mobile phone and easily implement lock and unlock control.%以Android手机为平台凭借蓝牙技术完成了智能电子锁的设计,为无线遥控电子锁提供了一种新思路。介绍电子锁所要完成的功能,详细阐述系统的软硬件设计。其中手机端的蓝牙与单片机的蓝牙模块 HC 06分别视为客户端和服务端。客户端是在App Inventor里面进行JAVA编程处理,而服务端则是编写C语言程序进行单片机控制,二者以此进行串口通信。结果表明,电子锁可以接受手机发出的信号并且可以灵活的执行开关控制功能。

  20. PERFORMANCE EVALUATION OF AN ALTERNATIVE CONTROLLER FOR BLUETOOTH SERVICE DISCOVERY

    Directory of Open Access Journals (Sweden)

    M. Sughasiny

    2012-06-01

    Full Text Available Bluetooth is a short range radio technology to form a small wireless system. It is used in low –cost, low power ad-hoc networks and it suffers from long service discovery delay and high power consumption. Bluetooth employs the 2.4 GHz ISM band, sharing the same bandwidth with the wireless LAN implementing the IEEE 802.11 standards. Thus it causes significantly lower interference. For improving the efficiency of SDP, we present an implementation of Bluetooth 2.1 in the NS-2 simulator, discuss the IEEE 802.11b as a Bluetooth controller and propose a new alternative Bluetooth Controller based on Adaptive Frequency Hopping techniques using Amplifier Power. The resulting approach significantly reduces the service discovery time, thereby lowering power consumption and increasing the throughput. We present the benefits of our new approach and compare it with existing approach using NS-2 Simulations and we have presented the comparison graphs in support of our approach.

  1. Distributed sensing and actuation over bluetooth for unmanned air vehicles

    OpenAIRE

    Afonso, José A.; Coelho, Ezequiel T.; Carvalhal, Paulo; Ferreira, Manuel João Oliveira; Santos, Cristina; Silva, Luís F.; Almeida, Heitor

    2006-01-01

    A short range wireless network platform, based on Bluetooth technology and on a Round Robin scheduling is presented. The objective is to build an application independent platform, to support a distributed sensing and actuation control system, which will be used in an Unmanned Aerial Vehicle (UAV). This platform provides the advantages of wireless communications while assuring low weight, small energy consumption and reliable communications.

  2. Radio Frequency Fingerprinting Technology in Bluetooth Communication%蓝牙通信中的射频指纹识别技术

    Institute of Scientific and Technical Information of China (English)

    李文龙; 陈悦; 许金勇; 梁涛

    2014-01-01

    利用开机瞬态特征对蓝牙传输设备进行射频指纹识别时,开机瞬态信号的捕获与提取存在一定的局限性。为此,提出将频率跳变瞬态特征用于蓝牙设备的唯一性鉴别,以克服开机瞬态特征的局限性。在射频指纹识别中的数据获取、瞬态信号检测、指纹提取和分类过程中对该特征进行验证,根据实验数据对鉴别性能进行评估。分析结果表明,利用频率跳变瞬态特征能够成功鉴别蓝牙设备。以对虫洞攻击的检测和防御为例,进一步分析射频指纹识别在蓝牙网络安全协议中的应用,并给出基于蓝牙指纹识别的安全链路管理协议。%It is limitary to classify the radio devices by utilizing the turn-on transients character, when the turn-on transient signals are captured and extracted. Aiming at this problem, this paper investigates Frequency Hopping(FH) transients character which can be used to classify the bluetooth devices alike the Turn-on Transients(TOT) character but get rid of the limitation which the RFF based TOT character has. The FHT-Character based on the Radio Frequency Fingerprinting(RFF) process is validated, which includes data acquisition, transient detection, radio frequency fingerprint extraction, and classification subsystems. A classification performance of the identification system is evaluated from experimental data. It is demonstrated that the FHT character can be used to classify the bluetooth devices successfully. It further analyzes the implications of device fingerprinting on the security of bluetooth networking protocols which is illustrated by the example of the detection and combat for wormhole attacks. From this, a safe link management protocol is given which is based on bluetooth fingerprinting.

  3. NASA Bluetooth Wireless Communications

    Science.gov (United States)

    Miller, Robert D.

    2007-01-01

    NASA has been interested in wireless communications for many years, especially when the crew size of the International Space Station (ISS) was reduced to two members. NASA began a study to find ways to improve crew efficiency to make sure the ISS could be maintained with limited crew capacity and still be a valuable research testbed in Low-Earth Orbit (LEO). Currently the ISS audio system requires astronauts to be tethered to the audio system, specifically a device called the Audio Terminal Unit (ATU). Wireless communications would remove the tether and allow astronauts to freely float from experiment to experiment without having to worry about moving and reconnecting the associated cabling or finding the space equivalent of an extension cord. A wireless communication system would also improve safety and reduce system susceptibility to Electromagnetic Interference (EMI). Safety would be improved because a crewmember could quickly escape a fire while maintaining communications with the ground and other crewmembers at any location. In addition, it would allow the crew to overcome the volume limitations of the ISS ATU. This is especially important to the Portable Breathing Apparatus (PBA). The next generation of space vehicles and habitats also demand wireless attention. Orion will carry up to six crewmembers in a relatively small cabin. Yet, wireless could become a driving factor to reduce launch weight and increase habitable volume. Six crewmembers, each tethered to a panel, could result in a wiring mess even in nominal operations. In addition to Orion, research is being conducted to determine if Bluetooth is appropriate for Lunar Habitat applications.

  4. Bluetooth and sensor networks: a reality check

    DEFF Research Database (Denmark)

    Leopold, Martin; Dydensborg, Mads; Bonnet, Philippe

    2003-01-01

    The current generation of sensor nodes rely on commodity components. The choice of the radio is particularly important as it impacts not only energy consumption but also software design (e.g., network self-assembly, multihop routing and in-network processing). Bluetooth is one of the most popular...... commodity radios for wireless devices. As a representative of the frequency hopping spread spectrum radios, it is a natural alternative to broadcast radios in the context of sensor networks. The question is whether Bluetooth can be a viable alternative in practice. In this paper, we report our experience...... using Bluetooth for the sensor network regime. We describe our tiny Bluetooth stack that allows TinyOS applications to run on Bluetooth-based sensor nodes, we present a multihop network assembly procedure that leverages Bluetooth's device discovery protocol, and we discuss how Bluetooth favorably...

  5. Determining the receptivity to the bluetooth marketing by the portuguese consumer

    OpenAIRE

    Sá, Inês; Gonçalves, Paulo; Vilas-Boas, Madalena

    2015-01-01

    With increasing technological innovation, the concept of marketing and its applications become more functional and wide. Today, we witness a steady growth in the development of mobile marketing campaigns, i.e., marketing campaigns targeting mobile devices (mobile phones, Smartphones, PDAs, tablets). Among the several mobile technologies available (Bluetooth networks, Wi-Fi, WAP, SMS service, MMS), Bluetooth seems to have the biggest potential for the least invasive consumer mobile marketing s...

  6. Self-Organizing Routing Protocol for Bluetooth Low Energy Sensor Networks

    OpenAIRE

    Haatanen, Marko

    2012-01-01

    Oulu University of Applied Sciences Information Technology and Telecommunications Author(s): Marko Haatanen Title of thesis: Self-Organizing Routing Protocol for Bluetooth Low Energy Sensor Networks Supervisor(s): Teemu Korpela Term and year when the thesis was submitted: Spring 2012 Number of pages: 37 One of the main reasons for starting this project was to learn how to utilize Bluetooth Low Energy technology. It was started on the side of a European Union funded projec...

  7. Modelling Bluetooth Inquiry for SUMO

    OpenAIRE

    Behrisch, Michael; Gurczik, Gaby

    2014-01-01

    SUMO provides an interface for the implementation of arbitrary additional vehicle devices. This paper describes how this interface was used to implement Bluetooth devices with a special focus on the inquiry process and how its modelling relates to real world measurements and a simple analytic model.

  8. Bluetooth Heart Rate Monitors for Spaceflight

    Science.gov (United States)

    Buxton, R. E.; West, M. R.; Kalogera, K. L.; Hanson, A. M.

    2016-01-01

    Heart rate monitoring is required for crewmembers during exercise aboard the International Space Station (ISS) and will be for future exploration missions. The cardiovascular system must be sufficiently stressed throughout a mission to maintain the ability to perform nominal and contingency/emergency tasks. High quality heart rate data are required to accurately determine the intensity of exercise performed by the crewmembers and show maintenance of VO2max. The quality of the data collected on ISS is subject to multiple limitations and is insufficient to meet current requirements. PURPOSE: To evaluate the performance of commercially available Bluetooth heart rate monitors (BT HRM) and their ability to provide high quality heart rate data to monitor crew health aboard the ISS and during future exploration missions. METHODS: Nineteen subjects completed 30 data collection sessions of various intensities on the treadmill and/or cycle. Subjects wore several BT HRM technologies for each testing session. One electrode-based chest strap (CS) was worn, while one or more optical sensors (OS) were worn. Subjects were instrumented with a 12-lead ECG to compare the heart rate data from the Bluetooth sensors. Each BT HRM data set was time matched to the ECG data and a +/-5bpm threshold was applied to the difference between the 2 data sets. Percent error was calculated based on the number of data points outside the threshold and the total number of data points. RESULTS: The electrode-based chest straps performed better than the optical sensors. The best performing CS was CS1 (1.6% error), followed by CS4 (3.3% error), CS3 (6.4% error), and CS2 (9.2% error). The OS resulted in 10.4% error for OS1 and 14.9% error for OS2. CONCLUSIONS: The highest quality data came from CS1, but unfortunately it has been discontinued by the manufacturer. The optical sensors have not been ruled out for use, but more investigation is needed to determine how to obtain the best quality data. CS2 will be

  9. Intelligent Parking Guidance System Based on Wi-Fi and Bluetooth Technology%基于Wi-Fi和蓝牙技术的停车场智能引导系统

    Institute of Scientific and Technical Information of China (English)

    岳永霞; 金华

    2016-01-01

    针对目前停车场引导系统存在的诸多弊端,基于Wi-Fi和蓝牙技术的特点以及Android智能手机的功能,提出一种停车场智能引导系统的设计方案。系统采用Android智能手机为客户端,利用Wi-Fi和蓝牙技术完成手机客户端与服务器端的数据交互,实现停车场信息统一管理和汽车身份自动验证的功能;利用Dijkstra最短路径算法,实现室内停车场的路线引导功能。系统无需车载其他设备,且停车全过程无需人工操作。%Aiming at lots of disadvantages existing in parking guidance systems, an intelligent parking guidance system based on the characteristics of Wi-Fi and Bluetooth technology and the functions of Android smart phones is proposed.The system uses An-droid smart phones as the client.By using Wi-Fi and Bluetooth technology, the client and server-side data communication, park-ing information unified management, and automatic car-identity authentication can be realized.The function of indoor parking guidance can be achieved by using the Dijkstra.The intelligent parking guidance system needn’ t on-board equipment and manual operation.

  10. A Novel Bluetooth Man-In-The-Middle Attack Based On SSP using OOB Association model

    CERN Document Server

    Saravanan, K; Negesh, R K

    2012-01-01

    As an interconnection technology, Bluetooth has to address all traditional security problems, well known from the distributed networks. Moreover, as Bluetooth networks are formed by the radio links, there are also additional security aspects whose impact is yet not well understood. In this paper, we propose a novel Man-In-The-Middle (MITM) attack against Bluetooth enabled mobile phone that support Simple Secure Pairing(SSP). From the literature it was proved that the SSP association models such as Numeric comparison, Just works and passkey Entry are not more secure. Here we propose the Out Of Band (OOB) channeling with enhanced security than the previous methods.

  11. Real-Time Video Streaming Over Bluetooth Network Between Two Mobile Nodes

    Directory of Open Access Journals (Sweden)

    Sourav Banerjee

    2010-05-01

    Full Text Available The Bluetooth arrangement provides a very robust and powerful technology within a short range wireless communication. The communication over Bluetooth is complicated with a heavy security threat. Here, in this paper we proposed for a system, Bluetooth Enabled surveillance System (BESS that will help transmitting live video streaming in between two mobile phone via built-in cell phone camera. This system can be useful for surveillance of a secret area or monitoring of any important work. This system can help to prevent certain attack within a small range.

  12. Improving Wi-Fi Based Indoor Positioning Using Bluetooth Add-Ons

    DEFF Research Database (Denmark)

    Baniukevic, Artur; Sabonis, Dovydas; Jensen, Christian Søndergaard;

    2011-01-01

    enabling indoor LBSs. Existing indoor positioning services typically use a single technology such as Wi-Fi, RFID or Bluetooth. Wi-Fi based indoor positioning is relatively easy to deploy, but does often not offer good positioning accuracy. In contrast, the use of RFID or Bluetooth for positioning requires...... considerable investments in equipment in order to ensure good positioning accuracy. Motivated by these observations, we propose a hybrid approach to indoor positioning. In particular, we introduce Bluetooth hotspots into an indoor space with an existing Wi-Fi infrastructure such that better positioning...

  13. Research of Mobile Remote Control System Based Bluetooth Technology%基于蓝牙技术的手机遥控系统开发研究

    Institute of Scientific and Technical Information of China (English)

    姚霁耘

    2011-01-01

    针对无线遥控功能,借助蓝牙技术提出一种扩展应用实现方案:手机作为遥控器,受控端可以是其它各种电器。该方案适用于有蓝牙组件的手机和电脑,以及其它可以组装蓝牙控制模块的电器。具体方案是利用蓝牙网络.通过数据交互.将手机按键事件编码发送给受控端,比如电脑,受控端将接收到的数据解码转换成相应的控制事件。实验结果表明,此方案可以较为理想地实现电脑控制。%The paper proposed a remote control system over Bluetooth, in which a cellular phone can remote control other electronic machines. All cellular phone, computer and electronic machine (such as television) with internal or external Bluetooth can be used in this system. A cellular phone encodes the key event into control code, which is sent to the controlled terminal. The control code is decoded to control action by the controlled terminal according to the decoding scheme. Computer control function is achieved in the experiment.

  14. Application of the Blobo bluetooth ball in wrist rehabilitation training.

    Science.gov (United States)

    Hsieh, Wei-Min; Hwang, Yuh-Shyan; Chen, Shih-Ching; Tan, Sun-Yen; Chen, Chih-Chen; Chen, Yu-Luen

    2016-01-01

    [Purpose] The introduction of emerging technologies such as the wireless Blobo bluetooth ball with multimedia features can enhance wrist physical therapy training, making it more fun and enhancing its effects. [Methods] Wrist injuries caused by fatigue at work, improper exercise, and other conditions are very common. Therefore, the reconstruction of wrist joint function is an important issue. The efficacy of a newly developed integrated wrist joint rehabilitation game using a Blobo bluetooth ball with C# software installed was tested in wrist rehabilitation (Flexion, Extension, Ulnar Deviation, Radial Deviation). [Results] Eight subjects with normal wrist function participated in a test of the system's stability and repeatability. After performing the Blobo bluetooth ball wrist physical therapy training, eight patients with wrist dysfunction experienced approximately 10° improvements in range of motion (ROM) of flexion extension, and ulnar deviation and about 6° ROM improvement in radial deviation. The subjects showed progress in important indicators of wrist function. [Conclusion] This study used the Blobo bluetooth ball in wrist physical therapy training and the preliminary results were encouraging. In the future, more diverse wrist or limb rehabilitation games should be developed to meet the needs of physical therapy training. PMID:26957723

  15. Bluetooth Navigation System using Wi-Fi Access Points

    OpenAIRE

    Rohit Agrawal; Ashesh Vasalya

    2012-01-01

    There have been various navigation and tracking systems being developed with the help of technologies like GPS, GSM, Bluetooth, IR, Wi-Fi and Radar. Outdoor positioning systems have been deployed quite successfully using GPS but positioning systems for indoor environments still do not have widespread deployment due to various reasons. Most of these use only a single technology for positioning but using more than one in cooperation with each other is always advantageous for obtaining greater ...

  16. Improving Indoor Localization Using Bluetooth Low Energy Beacons

    OpenAIRE

    Pavel Kriz; Filip Maly; Tomas Kozel

    2016-01-01

    The paper describes basic principles of a radio-based indoor localization and focuses on the improvement of its results with the aid of a new Bluetooth Low Energy technology. The advantage of this technology lies in its support by contemporary mobile devices, especially by smartphones and tablets. We have implemented a distributed system for collecting radio fingerprints by mobile devices with the Android operating system. This system enables volunteers to create radio-maps and update them co...

  17. Utvärdering av inomhuslokalisering med Bluetooth Low Energy

    OpenAIRE

    Johansson, Mathias; Karlsson, Mikael

    2015-01-01

    Wireless communication is becoming more common, a relatively new technology within the area is Bluetooth Low Energy. It’s been developed to be energy efficient and in regard to compatibility. Alongside the growth of wireless technology, scientists and companies are looking for new areas of use. One of these is localization, which means to determine the position of a moving device with the use of stationary devices, an example of this would be GPS.This report means to evaluate indoor localizat...

  18. Secure Bluetooth for Trusted m-Commerce

    OpenAIRE

    STIRPARO PASQUALE; LOESCHNER Jan

    2013-01-01

    Our today’s world is becoming digital and mobile. Exploiting the advantages of wireless communication protocols is not only for telecommunication purposes, but also for payments, interaction with intelligent vehicles, etc. One of the most widespread wireless capabilities is the Bluetooth protocol. Just in 2010, 906 million mobile Bluetooth enabled phones had been sold, and in 2011, there were more than 40 million Bluetooth enabled health and medical devices on the market. Still in 2011, one t...

  19. Improved Performance of Bluetooth with Focus on Ad-Hoc Applications

    OpenAIRE

    Isaksson, Lennart

    2004-01-01

    The number of devices making use of Bluetooth cable-replacement technology has rapidly increased in numbers thanks to the amount of implementations in cellular telephones, Personal Digital Assistants (PDAs), etc. Instead of the point-to-point technique used today the wireless community demands more sophisticated solutions to transmit information between two devices, e.g. using a chat program within an ad-hoc network. However, Bluetooth provides neither a routing protocol, nor is the slave/sla...

  20. Power saving approaches for use with bluetooth: modelling and analysis of new protocols

    OpenAIRE

    Wen, Jiangchuan

    2012-01-01

    peer-reviewed The variety of Bluetooth applications has increased greatly in recent times. The energy consumption in such applications has emerged as an important problem. The research presented in this dissertation investigates the low power operations of current Bluetooth Basic Rate/Enhance Data Rate (BR/EDR) technology and explores several novel power saving optimization approaches for applications. In order to manage power consumption in these applications, certain featu...

  1. Säkerhetsanalys av Bluetooth-kommunikation

    OpenAIRE

    Heimer, Anders; Seffel, Jonas

    2006-01-01

    Detta examensarbete beskriver resultatet av en undersökning av säkerheten hos Bluetooth samt hur användning av Bluetooth-utrustade produkter kan påverka användarnas integritet. Undersökningen har genomförts dels genom litteraturstudier och dels genom implementation av en forskningsprototyp. Forskningsprototypen har använts vid ett experiment där vi utrönt vilken information en Bluetooth-utrustad produkt avslöjar till en tredje part. Vid experimentet har vi även försökt koppla ihop Bluetooth-u...

  2. A Zigbee and Bluetooth Protocol Converter Based on Multi-sinks Wireless Sensor Network

    Directory of Open Access Journals (Sweden)

    Chunhong Guo

    2014-07-01

    Full Text Available A Zigbee and Bluetooth converter is designed in this paper. A multi-sinks wireless sensor network is used to solve the notable problems appeared in the single node wireless sensor network. These problems are solved in converter system such as data transmission reliability and node energy consumption imbalance and so on. The converter system can be better adapted to the large-scale, high-density development trend of network layout. Zigbee technology has low power consumption, low cost. And Bluetooth technology shows outstanding advantages in terms of terminal access. This paper attempts to combine the advantages of two wireless technology, and design a point-to-many method of Zigbee and Bluetooth protocol converter. Then apply the Zigbee and Bluetooth protocol of converter to the multi-sinks wireless sensor networks. At the sensor nodes, it forms a network based on the Zigbee protocol. At the converter nodes, it communicates with Bluetooth devices through point-to-many method. The experiment results show that the point-to-many method of Zigbee and Bluetooth system can convert data effectively, and improve the data transmission reliably of the wireless sensor network. It has important values in the application of wireless sensor networks.

  3. Evaluating performance of a Bluetooth-based classroom tool

    OpenAIRE

    Davidrajuh, Reggie

    2009-01-01

    This paper focuses on the performance evaluation of a Bluetooth wireless technology based classroom tool. The classroom tool is to help lecturers automate their assignment tests. First, a testing prototype of the tool is presented; the testing prototype uses one master device and two slave devices on Pico-net. As it will be expensive to build prototype for a large class, simulation study is done to evaluate performance of the tool for large classes. The simulation study reveals ...

  4. Autonomous platform for distributed sensing and actuation over bluetooth

    OpenAIRE

    Carvalhal, Paulo; Coelho, Ezequiel T.; Ferreira, Manuel João Oliveira; Afonso, José A.; Santos, Cristina

    2006-01-01

    This paper presents a short range wireless network platform based on Bluetooth technology and on a Round Robin scheduling algotithm. The main goal is to provide an application independent platform in order to support a distributed data acquisition and control system used to control a model of a greenhouse. This platform enables the advantages of wireless communications while assuring low weight, small energy consumption and reliable communications.

  5. Improving Indoor Localization Using Bluetooth Low Energy Beacons

    Directory of Open Access Journals (Sweden)

    Pavel Kriz

    2016-01-01

    Full Text Available The paper describes basic principles of a radio-based indoor localization and focuses on the improvement of its results with the aid of a new Bluetooth Low Energy technology. The advantage of this technology lies in its support by contemporary mobile devices, especially by smartphones and tablets. We have implemented a distributed system for collecting radio fingerprints by mobile devices with the Android operating system. This system enables volunteers to create radio-maps and update them continuously. New Bluetooth Low Energy transmitters (Apple uses its “iBeacon” brand name for these devices have been installed on the floor of the building in addition to existing WiFi access points. The localization of stationary objects based on WiFi, Bluetooth Low Energy, and their combination has been evaluated using the data measured during the experiment in the building. Several configurations of the transmitters’ arrangement, several ways of combination of the data from both technologies, and other parameters influencing the accuracy of the stationary localization have been tested.

  6. Bluetooth Navigation System using Wi-Fi Access Points

    CERN Document Server

    Agrawal, Rohit

    2012-01-01

    There have been various navigation and tracking systems being developed with the help of technologies like GPS, GSM, Bluetooth, IR, Wi-Fi and Radar. Outdoor positioning systems have been deployed quite successfully using GPS but positioning systems for indoor environments still do not have widespread deployment due to various reasons. Most of these use only a single technology for positioning but using more than one in cooperation with each other is always advantageous for obtaining greater accuracy. Particularly, the ones which use Bluetooth are better since they would enhance the scalability of such a system because of the fact that this technology is in use by the common people so it would always be easy to track them. Moreover it would also reduce the hardware installation cost to some extent. The system that has been introduced here uses Bluetooth primarily for positioning and tracking in combination with Wi-Fi access points. The reason that makes the commercial application of such a system easier and ch...

  7. Bluetooth Navigation System Using WI-FI Access Points

    Directory of Open Access Journals (Sweden)

    Rohit Agrawal

    2012-04-01

    Full Text Available There have been various navigation and tracking systems being developed with the help of technologies like GPS, GSM, Bluetooth, IR, Wi-Fi and Radar. Outdoor positioning systems have been deployed quite successfully using GPS but positioning systems for indoor environments still do not have widespread deployment due to various reasons. Most of these use only a single technology for positioning but using more than one in cooperation with each other is always advantageous for obtaining greater accuracy. Particularly, the ones which use Bluetooth are better since they would enhance the scalability of such a system because of the fact that this technology is in use by the common people so it would always be easy to track them. Moreover it would also reduce the hardware installation cost to some extent. The systemthat has been introduced here uses bluetooth primarily for positioning and tracking in combination with Wi-Fi access points. The reason that makes the commercial application of such a system easier and cheaper is that most of the localized areas today like college campus, offices are being provided withinternet connectivity using these access points.

  8. The Radio Office Network with the Bluetooth Technique%利用蓝牙技术组建无线办公网络

    Institute of Scientific and Technical Information of China (English)

    康劲; 徐超; 侯建辉; 冯文江

    2003-01-01

    Bluetooth becomes the focus in the world as a new technology on wireless connection in a short distance.The paper builds the application model which is applied to the wireless office network in the modern corporation. We invent a new Bluetooth routing scheme which is based on the latest Bluetooth Protocol. In this routing scheme, how the routing table and routing are established is discussed. It is practical and expandable. At last, the concrete revolu-tion is invented. Some Bluetooth products are also introduced.

  9. Bluetooth-based authentication system for ambient intelligence

    Institute of Scientific and Technical Information of China (English)

    Jian HE; Hui LI; Yong ZHANG; Zhang-qin HUANG

    2008-01-01

    According to the requirement of natural human-computer interaction for Ambient Intelligence (AmI), a Bluetooth-based authentication technique is provided. An authentication network combining advantages of Bluetooth ad hoc network with the Ethernet is introduced first in detail. Then we propose a Bluetooth badge for storing the user's identification information. Finally, the authentication system based on Bluetooth badge and authentication network is introduced. It is demonstrated experimentally that the Bluetooth-based authentication technique can authenticate the user automatically.

  10. Tracking of Mobile Devices Through Bluetooth Contacts

    OpenAIRE

    Ristanovic, Nikodin; TRAN, DANG KHOA; Le Boudec, Jean-Yves

    2010-01-01

    We investigate if it is possible to reconstruct a mobile phone’s mobility using its Bluetooth contacts with other mobile devices, some of which are equipped with GPS receivers. Our data mining analysis, based on two different data sets, shows that in certain environments coarse grained mobility of a significant portion of mobile phones can be obtained using this technique. For this reason, anyone capable of collecting Bluetooth and, if available, GPS logs for a large population of mobile phon...

  11. Application Study of Bluetooth Technology in the Data Acquisition Wireless Network System%Bluetooth技术在数据采集无线网络系统中的应用研究

    Institute of Scientific and Technical Information of China (English)

    黄晓林; 蒋伟荣; 梁玉红

    2003-01-01

    Bluetooth技术可实现短距离、低功耗的无线通信和构成无线网络(Piconet and Scatternet),采用Bluetooth技术构建的数据采集无线网络系统(Data Acquisition Wireless Network System based on Bluetooth:DAWNS-B)便于进行集中测量和控制.介绍Bluetooth ASIC的结构特性以及DAWNS-B的结构原理、硬件电路接口和软件系统.DAWNS-B由前、后端单元构成,Bluetooth ASIC的HCI与PC计算机(或单片机)接口,Bluetooth协议软件栈控制Bluetooth ASIC对主机的HCI命令以及前、后端无线通信和网络通信,应用程序实现数据采集、处理DAWNS-B实现测控系统移动数据交换和无线网络功能,扩大和增强了数据采集系统的功能和应用场合.

  12. Bluetooth security attacks comparative analysis, attacks, and countermeasures

    CERN Document Server

    Haataja, Keijo; Pasanen, Sanna; Toivanen, Pekka

    2013-01-01

    This overview of Bluetooth security examines network vulnerabilities and offers a comparative analysis of recent security attacks. It also examines related countermeasures and proposes a novel attack that works against all existing Bluetooth versions.

  13. Quality of Service in Bluetooth networking - part I

    NARCIS (Netherlands)

    Zee, van der Martin; Heijenk, Geert

    2001-01-01

    The Quality of Service functions and procedures included in the Bluetooth 1.0 specification have been reviewed. Next issues associated with providing Quality of Service over a wireless link in general and Bluetooth in particular have been investigated. Allthough the Bluetooth 1.0 specification provi

  14. A (simplified) Bluetooth Maximum A posteriori Probability (MAP) receiver

    NARCIS (Netherlands)

    Schiphorst, R.; Hoeksema, F.W.; Slump, C.H.

    2003-01-01

    In our software-defined radio project we aim at combining two standards: Bluetooth and HiperLAN/2. The Hiper- LAN/2 receiver requires the most computation power in comparison with Bluetooth. We choose to use this computational power also for Bluetooth and look for more advanced demodulation algorith

  15. Bluetooth 4.0 hyvinvointiteknolgian keinona

    OpenAIRE

    Laamanen, Outi; Knuutila, Venla

    2013-01-01

    Tämän insinöörityön aihe oli selvittää, kuinka Bluetooth 4.0 sopii käytettäväksi hyvinvointi-teknologiassa. Työ tehtiin osana PeopleNearMe-projektia, jossa tehtävänä oli selvittää, kuinka herkkä Bluetooth 4.0:n ominaisuus Bluetooth Low Energy eli BLE on häiriöille. Tä-män lisäksi tutustuttiin muihin langattomiin teknologioihin sekä jo olemassa oleviin hyvin-vointiteknologian langattomiin sovelluksiin ja laitteisiin. Työtä varten tehtiin mittauksia kahden kuukauden ajan keväällä 2013. Mitt...

  16. Real-world Bluetooth MANET Java Middleware

    DEFF Research Database (Denmark)

    Glenstrup, Arne John; Nielsen, Michael; Skytte, Frederik;

    We present BEDnet, a Java based middleware for creating and maintaining a Bluetooth based mobile ad-hoc network (MANET). MANETs are key to nomadic computing: Mobile units can set up spontaneous local networks when needed, removing the need for fixed network infrastructure, either as wireless access....... Based on the Java JSR-82 specification, BEDnet is portable to a wide selection of mobile phones, and is publicly available as open source software. Experiments show that e.g. media streaming over Bluetooth is feasible, and that BEDnet is able to set up a scatternet within a couple of minutes...

  17. FAST CORRELATION ATTACKS ON BLUETOOTH COMBINER

    Institute of Scientific and Technical Information of China (English)

    Ma Weiju; Feng Dengguo

    2006-01-01

    A simple fast correlation attack is used to analysis the security of Bluetooth combiner in this paper.This attack solves the tradeoff between the length of the keystream and the computing complexity needed to recover the secret key. We give the computing complexities of the attack algorithm according to different lengths of the known keystream. The result is less time-consuming than before. It is also shown that the security of the modified Bluetooth combiner by Hermelin and Nyberg is not significantly enhanced.

  18. 单级 PFC 恒流驱动及蓝牙调光技术的研究∗%Research on single-stage PFC constant current drive and bluetooth dimming technology

    Institute of Scientific and Technical Information of China (English)

    邓术; 何志毅

    2015-01-01

    LED 智能照明系统逐渐应用到室内照明,具有智能控制、高效节能、绿色的特点。国内 LED 智能照明系统仍不完善,存在不易控制、能源浪费、功率因数低、谐波干扰大等问题,使得 LED 照明的优势没有很好的体现出来,并阻碍其推广。对智能调光控制技术进行研究,设计单级 PFC 反激式恒流驱动电路和蓝牙调光方案,Android 智能手机作为客户端以蓝牙无线技术传输调光控制信号,对 LED 恒流驱动电路进行开关、调光控制实现智能照明,具有便捷可靠、电源转换效率和功率因数高、电流总谐波低的性能。%LED intelligent lighting system was gradually applied to indoor lighting,have the characteristics of intelligent control, high efficiency and energy saving.Domestic LED intelligent lighting system has some problems,such as hard to control,energy waste,low power factor and harmonic interference,which make the advantage of LED lighting is not performance,also impact its promotion.In this paper,intelligent dimming control technology is analyzed.Single-stage PFC flyback type constant current drive circuit and Bluetooth,Wifi dimming solution were designed.The dimming driver circuit has high reliability,high power ef-ficiency and power factor,as well as low harmonic wave distortion of the input current.

  19. Análise das determinantes à receptividade ao bluetooth marketing pelo consumidor português – um estudo empírico

    OpenAIRE

    Gonçalves, Paulo; Sá, Inês; Vilas-Boas, Madalena

    2015-01-01

    With the increasing technological innovation, the concept of marketing and its applications become more functional and wide. Today is visible the development of mobile marketing campaigns, ie marketing campaigns for mobile devices (mobile phones, smartphones, PDAs, tablets). Taking advantage of mobile devices services (bluetooth networks, Wi-Fi, WAP, SMS service, MMS) as a vehicle to approach and communicate with consumers, bluetooth technology is a potential way of mobile marketing to become...

  20. Bluetooth Demodulation Algorithms and their Performance

    NARCIS (Netherlands)

    Schiphorst, Roel; Hoeksema, Fokke; Slump, Kees

    2002-01-01

    Abstract¿In our Software Defined Radio SDR project we aim at combining two different types of standards, Bluetooth and HiperLAN/2 on one common hardware platform. Goal of our project is to generate knowledge about designing the front end of an SDR system (from the antenna signal to the channel bit s

  1. Bluetooth(Registered Trademark) Heart Rate Monitors for Spaceflight

    Science.gov (United States)

    Buxton, Roxanne E.; West, Michael R.; Kalogera, Kent L.; Hanson, Andrea M.

    2016-01-01

    Heart rate monitoring is required during exercise for crewmembers aboard the International Space Station (ISS) and will be for future exploration missions. The cardiovascular system must be sufficiently stressed throughout a mission to maintain the ability to perform nominal and contingency/emergency tasks. High quality heart rate data is required to accurately determine the intensity of exercise performed by the crewmembers and show maintenance of VO2max. The quality of the data collected on ISS is subject to multiple limitations and is insufficient to meet current requirements. PURPOSE: To evaluate the performance of commercially available Bluetooth® heart rate monitors (BT_HRM) and their ability to provide high quality heart rate data to monitor crew health on board ISS and during future exploration missions. METHODS: Nineteen subjects completed 30 data collection sessions of various intensities on the treadmill and/or cycle. Subjects wore several BT_HRM technologies for each testing session. One electrode-based chest strap (CS) was worn, while one or more optical sensors (OS) was worn. Subjects were instrumented with a 12-lead ECG to compare the heart rate data from the Bluetooth sensors. Each BT_RHM data set was time matched to the ECG data and a +/-5bpm threshold was applied to the difference between the two data sets. Percent error was calculated based on the number of data points outside the threshold and the total number of data points. REULTS: The electrode-based chest straps performed better than the optical sensors. The best performing CS was CS1 (1.6%error), followed by CS4 (3.3%error), CS3 (6.4%error), and CS2 (9.2%error). The OS resulted in 10.4% error for OS1 and 14.9% error for OS2. CONCLUSIONS: The highest quality data came from CS1, unfortunately it has been discontinued by the manufacturer. The optical sensors have not been ruled out for use, but more investigation is needed to determine how to get the best quality data. CS2 will be used in an

  2. Provisioning vehicular services and communications based on a bluetooth sensor network deployment.

    Science.gov (United States)

    de Cerio, David Perez-Diaz; Valenzuela, José Luis

    2015-01-01

    It is very common to rule out Bluetooth as a suitable technology for vehicular communications. The reasons behind this decision usually result from misconceptions such as accepting that Bluetooth has a short application range, or assuming its connection setup is not fast enough to allow communication which involves high speed moving nodes. This paper refutes those assertions and proposes the use of Bluetooth not only for Infrastructure-to-Vehicle (I2V) or Road-to-Vehicle (R2V) communications, but also for Vehicle-to-Vehicle (V2V) or Vehicle-to-Infrastructure (V2I) communications. This novel proposal is based on using the remote name request procedure of the standard, combined with an adjustment and optimization of the parameters present in the inquiry and page procedures. The proposed modifications reduce the information exchange delay, thus making Bluetooth a suitable technology for high-speed vehicle communications. The feasibility of the proposed scheme has been validated through experimental tests conducted in different scenarios: laboratory, a real highway and a racing test circuit. There, the communication system was installed in a vehicle circulating at speeds of up to 250 km/h, whereas autonomous devices were disseminated throughout the road path to communicate with the on board devices obtaining satisfying results. PMID:26035350

  3. Provisioning Vehicular Services and Communications Based on a Bluetooth Sensor Network Deployment

    Directory of Open Access Journals (Sweden)

    David Perez-Diaz de Cerio

    2015-05-01

    Full Text Available It is very common to rule out Bluetooth as a suitable technology for vehicular communications. The reasons behind this decision usually result from misconceptions such as accepting that Bluetooth has a short application range, or assuming its connection setup is not fast enough to allow communication which involves high speed moving nodes. This paper refutes those assertions and proposes the use of Bluetooth not only for Infrastructure-to-Vehicle (I2V or Road-to-Vehicle (R2V communications, but also for Vehicle-to-Vehicle (V2V or Vehicle-to-Infrastructure (V2I communications. This novel proposal is based on using the remote name request procedure of the standard, combined with an adjustment and optimization of the parameters present in the inquiry and page procedures. The proposed modifications reduce the information exchange delay, thus making Bluetooth a suitable technology for high-speed vehicle communications. The feasibility of the proposed scheme has been validated through experimental tests conducted in different scenarios: laboratory, a real highway and a racing test circuit. There, the communication system was installed in a vehicle circulating at speeds of up to 250 km/h, whereas autonomous devices were disseminated throughout the road path to communicate with the on board devices obtaining satisfying results.

  4. Design and Realization of A Mobile ECG Monitoring System Based on Bluetooth Technology%基于蓝牙传输的手机心电监护系统设计与实现

    Institute of Scientific and Technical Information of China (English)

    田福英; 沈铁明; 刘博宇

    2013-01-01

    Objective:We developed a portable ECG monitoring system with wireless transmission technology.Methods:The ECG acquisition module,which uses the MSP430 chip as the core,gathers and amplifies the ECG signals,eliminates noises,converts to digital signals and then sends by bluetooth.The ECG monitoring program running on the smartphone receives the ECG signals and displays them on the phone surface in real time.It also calculates heart rates,stores in files and alarms with abnormal ECG.In data processing,we used median filtering to eliminate signal drift and applied a notch filter to remove noise of power-line interference at 50Hz.Then we applied a length transform method on ECG sections to quickly locate R waves and calculate heart rate in time.Results:We designed and completed the hardware circuit board and software programs of ECG acquisition module.We also programmed ECG monitoring applications which can run on a android mobile phone.The ECG signals are transmitted from ECG acquisition module to the mobile phone by bluetooth.The system picks up human ECG signals through electrodes and then displays them on the phone surface finally.The monitoring program can eliminate noises clearly and calculate the heart rate accurately in real time,and drive the bell alarm and saving the abnormal data segment when the heart rate exceeds the scope.The whole system runs smoothly with good real-time performance and stability.Conclusions:The system has features of small volume,low power consumption and simple operation.The implementation of this system will lighten the productization of the mobile human physiological information monitoring system which may be based on a smartphone or other mobile devices.It will promote mobile computing in health care area.%目的:本文利用智能手机平台设计并实现了一个基于蓝牙传输功能的便携式心电监护系统.方法:整个系统分为心电采集模块和用于心电显示与处理的手机

  5. Analysis of Latency Performance of Bluetooth Low Energy (BLE Networks

    Directory of Open Access Journals (Sweden)

    Keuchul Cho

    2014-12-01

    Full Text Available Bluetooth Low Energy (BLE is a short-range wireless communication technology aiming at low-cost and low-power communication. The performance evaluation of classical Bluetooth device discovery have been intensively studied using analytical modeling and simulative methods, but these techniques are not applicable to BLE, since BLE has a fundamental change in the design of the discovery mechanism, including the usage of three advertising channels. Recently, there several works have analyzed the topic of BLE device discovery, but these studies are still far from thorough. It is thus necessary to develop a new, accurate model for the BLE discovery process. In particular, the wide range settings of the parameters introduce lots of potential for BLE devices to customize their discovery performance. This motivates our study of modeling the BLE discovery process and performing intensive simulation. This paper is focused on building an analytical model to investigate the discovery probability, as well as the expected discovery latency, which are then validated via extensive experiments. Our analysis considers both continuous and discontinuous scanning modes. We analyze the sensitivity of these performance metrics to parameter settings to quantitatively examine to what extent parameters influence the performance metric of the discovery processes.

  6. Consistent Steering System using SCTP for Bluetooth Scatternet Sensor Network

    Science.gov (United States)

    Dhaya, R.; Sadasivam, V.; Kanthavel, R.

    2012-12-01

    Wireless communication is the best way to convey information from source to destination with flexibility and mobility and Bluetooth is the wireless technology suitable for short distance. On the other hand a wireless sensor network (WSN) consists of spatially distributed autonomous sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants. Using Bluetooth piconet wireless technique in sensor nodes creates limitation in network depth and placement. The introduction of Scatternet solves the network restrictions with lack of reliability in data transmission. When the depth of the network increases, it results in more difficulties in routing. No authors so far focused on the reliability factors of Scatternet sensor network's routing. This paper illustrates the proposed system architecture and routing mechanism to increase the reliability. The another objective is to use reliable transport protocol that uses the multi-homing concept and supports multiple streams to prevent head-of-line blocking. The results show that the Scatternet sensor network has lower packet loss even in the congestive environment than the existing system suitable for all surveillance applications.

  7. Analysis of latency performance of bluetooth low energy (BLE) networks.

    Science.gov (United States)

    Cho, Keuchul; Park, Woojin; Hong, Moonki; Park, Gisu; Cho, Wooseong; Seo, Jihoon; Han, Kijun

    2015-01-01

    Bluetooth Low Energy (BLE) is a short-range wireless communication technology aiming at low-cost and low-power communication. The performance evaluation of classical Bluetooth device discovery have been intensively studied using analytical modeling and simulative methods, but these techniques are not applicable to BLE, since BLE has a fundamental change in the design of the discovery mechanism, including the usage of three advertising channels. Recently, there several works have analyzed the topic of BLE device discovery, but these studies are still far from thorough. It is thus necessary to develop a new, accurate model for the BLE discovery process. In particular, the wide range settings of the parameters introduce lots of potential for BLE devices to customize their discovery performance. This motivates our study of modeling the BLE discovery process and performing intensive simulation. This paper is focused on building an analytical model to investigate the discovery probability, as well as the expected discovery latency, which are then validated via extensive experiments. Our analysis considers both continuous and discontinuous scanning modes. We analyze the sensitivity of these performance metrics to parameter settings to quantitatively examine to what extent parameters influence the performance metric of the discovery processes. PMID:25545266

  8. Wireless multipoint communication for optical sensors in the industrial environment using the new Bluetooth standard

    Science.gov (United States)

    Hussmann, Stephan; Lau, Wing Y.; Chu, Terry; Grothof, Markus

    2003-07-01

    Traditionally, the measuring or monitoring system of manufacturing industries uses sensors, computers and screens for their quality control (Q.C.). The acquired information is fed back to the control room by wires, which - for obvious reason - are not suitable in many environments. This paper describes a method to solve this problem by employing the new Bluetooth technology to set up a complete new system, where a total wireless solution is made feasible. This new Q.C. system allows several line scan cameras to be connected at once to a graphical user interface (GUI) that can monitor the production process. There are many Bluetooth devices available on the market such as cell-phones, headsets, printers, PDA etc. However, the detailed application is a novel implementation in the industrial Q.C. area. This paper will contain more details about the Bluetooth standard and why it is used (nework topologies, host controller interface, data rates, etc.), the Bluetooth implemetation in the microcontroller of the line scan camera, and the GUI and its features.

  9. Coexistence issues for a 2.4 GHz wireless audio streaming in presence of bluetooth paging and WLAN

    Science.gov (United States)

    Pfeiffer, F.; Rashwan, M.; Biebl, E.; Napholz, B.

    2015-11-01

    Nowadays, customers expect to integrate their mobile electronic devices (smartphones and laptops) in a vehicle to form a wireless network. Typically, IEEE 802.11 is used to provide a high-speed wireless local area network (WLAN) and Bluetooth is used for cable replacement applications in a wireless personal area network (PAN). In addition, Daimler uses KLEER as third wireless technology in the unlicensed (UL) 2.4 GHz-ISM-band to transmit full CD-quality digital audio. As Bluetooth, IEEE 802.11 and KLEER are operating in the same frequency band, it has to be ensured that all three technologies can be used simultaneously without interference. In this paper, we focus on the impact of Bluetooth and IEEE 802.11 as interferer in presence of a KLEER audio transmission.

  10. Security Threats Analysis in Bluetooth-Enabled Mobile Devices

    OpenAIRE

    Robayet Nasim

    2012-01-01

    Exponential growth of the volume of Bluetooth-enabled devices indicates that it has become a popular way of wireless interconnections for exchanging information. The main goal of this paper is to analyze the most critical Bluetooth attacks in real scenarios. In order to find out the major vulnerabilities in modern Bluetooth-enabled mobile devices several attacks have performed successfully such as- Surveillance, Obfuscation, Sniffing, Unauthorized Direct Data Access (UDDA) and Man-in-the-Midd...

  11. Hidden Markov models for vehicle tracking with Bluetooth

    OpenAIRE

    Lees-Miller, John; Wilson, R. Eddie; Box, Simon

    2013-01-01

    Bluetooth is a short range communication protocol. Bluetooth-enabled devices can be detected using road-side equipment, and each detected device reports a unique identifier. These unique identifiers can be used to track vehicles through road networks over time. The focus of this paper is on reconstructing the paths of vehicles through a road network using Bluetooth detection data. A method is proposed that uses Hidden Markov Models, which are a well-known tool for statistical pattern recognit...

  12. [Temperature Measurement with Bluetooth under Android Platform].

    Science.gov (United States)

    Wang, Shuai; Shen, Hao; Luo, Changze

    2015-03-01

    To realize the real-time transmission of temperature data and display using the platform of intelligent mobile phone and bluetooth. Application of Arduino Uno R3 in temperature data acquisition of digital temperature sensor DS18B20 acquisition, through the HC-05 bluetooth transmits the data to the intelligent smart phone Android system, realizes transmission of temperature data. Using Java language to write applications program under Android development environment, can achieve real-time temperature data display, storage and drawing temperature fluctuations drawn graphics. Temperature sensor is experimentally tested to meet the body temperature measurement precision and accuracy. This paper can provide a reference for other smart phone mobile medical product development.

  13. [Temperature Measurement with Bluetooth under Android Platform].

    Science.gov (United States)

    Wang, Shuai; Shen, Hao; Luo, Changze

    2015-03-01

    To realize the real-time transmission of temperature data and display using the platform of intelligent mobile phone and bluetooth. Application of Arduino Uno R3 in temperature data acquisition of digital temperature sensor DS18B20 acquisition, through the HC-05 bluetooth transmits the data to the intelligent smart phone Android system, realizes transmission of temperature data. Using Java language to write applications program under Android development environment, can achieve real-time temperature data display, storage and drawing temperature fluctuations drawn graphics. Temperature sensor is experimentally tested to meet the body temperature measurement precision and accuracy. This paper can provide a reference for other smart phone mobile medical product development. PMID:26524781

  14. Bluetooth Low Energy - privacy enhancement for advertisement

    OpenAIRE

    Wang, Ping

    2014-01-01

    The aim of this project is to design, simulate, and implement a privacy enhancement protocol over BLE advertising channels. The design of the privacy enhancement is generic and modular. Due to the risk of privacy disclosure and device tracking by adversary, the main focus will be put on designing and implementing message confidentiality, replay prevention, and anti-tracking of device over BLE advertising channels. Bluetooth core specification 4.1 is used as baseline for design and implementat...

  15. Control Scheme of Bluetooth PAN and Its Implementing%Bluetooth PAN控制机制及其实现

    Institute of Scientific and Technical Information of China (English)

    蒋伟荣; 黄晓林

    2003-01-01

    通过对Bluetooth PAN的自组织网络SON (Piconet&Scatternet)和网络访问点NAP(Networking Access Point)两种模式的控制机制进行分析和研究,给出了Bluetooth PAN的一种实现结构.Bluetooth PAN是Bluetooth技术的一种重要应用,有着极为广泛的应用领域.

  16. Bit error rate analysis of Wi-Fi and bluetooth under the interference of 2.45 GHz RFID

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    IEEE 802.11b WLAN (Wi-Fi) and IEEE 802.15.1 WPAN (bluetooth) are prevalent nowadays, and radio frequency identification (RFID) is an emerging technology which has wider applications. 802.11b occupies unlicensed industrial, scientific and medical (ISM) band (2.4-2.483 5 GHz) and uses direct sequence spread spectrum (DSSS) to alleviate the narrow band interference and fading. Bluetooth is also one user of ISM band and adopts frequency hopping spread spectrum (FHSS) to avoid the mutual interference. RFID can operate on multiple frequency bands, such as 135 KHz, 13.56 MHz and 2.45 GHz. When 2.45 GHz RFID device, which uses FHSS, collocates with 802.11b or bluetooth, the mutual interference is inevitable. Although DSSS and FHSS are applied to mitigate the interference, their performance degradation may be very significant. Therefore, in this article, the impact of 2.45 GHz RFID on 802.11b and bluetooth is investigated. Bit error rate (BER) of 802.11b and bluetooth are analyzed by establishing a mathematical model, and the simula-tion results are compared with the theoretical analysis to justify this mathematical model.

  17. Use of Low-Level Sensor Data to Improve the Accuracy of Bluetooth-Based Travel Time Estimation

    DEFF Research Database (Denmark)

    Araghi, Bahar Namaki; Christensen, Lars Tørholm; Krishnan, Rajesh;

    2013-01-01

    Bluetooth sensors have a large detection zone compared with other static vehicle reidentification systems. A larger detection zone increases the probability of detecting a Bluetooth-enabled device in a fast-moving vehicle, yet increases the probability of multiple detection events being triggered...... by Global Positioning System technology. The results showed that the accuracy of the combined and peak-peak methods was higher than that of the other methods and that the employment of the first detection event did not necessarily yield the best travel time estimation....

  18. Hybrid Distributed Iterative Capacity Allocation over Bluetooth Network

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun

    of service requirements and constraints in Bluetooth network, such as limited capacity, decentralized, frequent changes of topology and of capacities assigned to nodes in the network. The simulation shows that the performance of Bluetooth could be improved by applying the hybrid distributed iterative...

  19. Hybrid Distributed Iterative Capacity Allocation over Bluetooth Network

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun

    2002-01-01

    of service requirements and constraints in Bluetooth network, such as limited capacity, decentralized, frequent changes of topology and of capacities assigned to nodes in the network. The simulation shows that the performance of Bluetooth could be improved by applying the hybrid distributed iterative...

  20. The Emergence of Denmark and the Reign of Harald Bluetooth

    DEFF Research Database (Denmark)

    Roesdahl, Else

    2008-01-01

    On Danish 'state formation' during the pre-Viking and early Viking Age, and on the reign of Harald Bluetooth: politics , conversion and building enterprises......On Danish 'state formation' during the pre-Viking and early Viking Age, and on the reign of Harald Bluetooth: politics , conversion and building enterprises...

  1. Distributed Construction and Maintenance of Bandwidth-Efficient Bluetooth Scatternets

    NARCIS (Netherlands)

    Tekkalmaz, M.; Sözer, H.; Korpeoglu, I.

    2005-01-01

    Bluetooth networks can be constructed as piconets or scatternets depending on the number of nodes in the network. Although piconet construction is a well-defined process specified in Bluetooth standards, scatternet construction policies and algorithms are not well specified. Among many solution prop

  2. A Bluetooth-enabled HiperLAN/2 receiver

    NARCIS (Netherlands)

    Schiphorst, R.; Hoeksema, F.W.; Slump, C.H.

    2003-01-01

    n our SDR project we aim to combine a GFSK receiver (Bluetooth) with an OFDM receiver (HiperLAN/2). Other WLAN standards use the same frequency bands and modulation techniques. So our Bluetooth-enabled HiperLAN/2 receiver can easily be adapted to other WLAN standards. This paper focuses on the integ

  3. A Bluetooth-enabled HiperLan/2 Receiver

    NARCIS (Netherlands)

    Schiphorst, R.; Hoeksema, F.W.; Slump, C.H.

    2003-01-01

    In our SDR project we aim to combine a GFSK receiver (Bluetooth) with an OFDM receiver (HiperLAN/2). Other WLAN standards use the same frequency bands and modulation techniques. So our Bluetooth-enabled HiperLAN/2 receiver can easily be adapted to other WLAN standards. This paper focuses on the inte

  4. A (Simplified) Bluetooth Maximum a Posteriori Probability (Map) Receiver

    NARCIS (Netherlands)

    Schiphorst, R.; Hoeksema, F.W.; Slump, C.H.; Barbarossa, Sergio; Scutari, Gesualdo

    2003-01-01

    In our software-defined radio project, we aim at combining two standards luetooth and HIPERLAN/2. The HIPERLAN/2 receiver requires more computational power than Bluetooth. We choose to use this computational power also for Bluetooth and look for more advanced demodulation algorithms such as a maximu

  5. Feasibility Evaluation of 6LoWPAN over Bluetooth Low Energy

    OpenAIRE

    Chawathaworncharoen, Varat; Visoottiviseth, Vasaka; Takano, Ryousei

    2015-01-01

    IPv6 over Low power Wireless Personal Area Network (6LoWPAN) is an emerging technology to enable ubiquitous IoT services. However, there are very few studies of the performance evaluation on real hardware environments. This paper demonstrates the feasibility of 6LoWPAN through conducting a preliminary performance evaluation of a commodity hardware environment, including Bluetooth Low Energy (BLE) network, Raspberry Pi, and a laptop PC. Our experimental results show that the power consumption ...

  6. A Zigbee and Bluetooth Protocol Converter Based on Multi-sinks Wireless Sensor Network

    OpenAIRE

    Chunhong Guo; Yu Zhou; Qingwei Ye; Xiaodong Wang

    2014-01-01

    A Zigbee and Bluetooth converter is designed in this paper. A multi-sinks wireless sensor network is used to solve the notable problems appeared in the single node wireless sensor network. These problems are solved in converter system such as data transmission reliability and node energy consumption imbalance and so on. The converter system can be better adapted to the large-scale, high-density development trend of network layout. Zigbee technology has low power consumption, low cost. And Blu...

  7. A bluetooth-based Interactive system to improve relationships between actors in educational environments

    OpenAIRE

    Ribeiro, F. Reinaldo; Metrôlho, J.C.M.M.; Costa, Mónica

    2010-01-01

    Nowadays there are a vast number of devices and technologies available for the common citizen to improve their communication with others. This fosters the design and implementation of systems that explore the available features of these devices. In this paper, we propose a Bluetooth-based interactive system for delivering personalized information in high education institutions. The system allows informing, on a personalized way, the actors of an education institution on a free way using popul...

  8. Concurrent operation of Bluetooth low energy and ANT wireless protocols with an embedded controller

    OpenAIRE

    Østhus, Per Magnus

    2011-01-01

    With the introduction of low-power wireless technologies, new applicationsin the healthcare, fitness and home entertainment markets emergethrough the use of ultra low-power sensors. These devices are designed torun for years on a single coin-cell battery.ANT and Bluetooth Low Energy are two low-power protocols that emergeas competitors in this market. The ability to combine these in a single systemnot only takes away the element of choice from the manufacturers, but alsoprovides compatibility...

  9. Hydraulstyrning med konfiguration över Bluetooth

    OpenAIRE

    Olofsson, Petter; Utterström, Jimmy

    2015-01-01

    Denna rapport omfattar konstruktionen av ett fristående drivkort med tillhörande mobilapplikation för styrning och konfiguration av ett hydraulsystem. Projektets syfte var att på beställaren Bosch Rexroth ABs begäran undersöka om pump control module (PCM) - en del ur det existerande Spider 3 styrsystemet - kunde användas som en fristående modul. Hårdvara med en Bluetoothmodul skapades och kopplades mot PCM för att möjliggöra kommunikation via Bluetooth. En mobilapplikation utvecklades i Andro...

  10. Alustariippumaton mobiilisovellus Bluetooth Low Energy -kommunikointiin

    OpenAIRE

    Pääkkönen, Antti

    2014-01-01

    Tämän insinöörityön tavoitteena oli suunnitella ja toteuttaa BLE (Bluetooth Low Energy) -teknologiaa hyödyntävä mobiilisovellus Android-pohjaiselle älypuhelimelle. Työn toteuttamiseen kuului graafisen käyttöliittymän sekä tämän avulla ohjattavien toiminnallisuuksien ohjelmointi. Insinöörityön toimeksiantajana toimi kajaanilainen sulautettuja laitteita sekä järjestelmiä valmistava yritys Exéns Development Oy. Työ suunniteltiin toteutettavaksi HTML5-sovelluksena ja JavaScript-ohjelmointikie...

  11. Vehicles In Highway Communication System Using ZigBee And Bluetooth Network

    Directory of Open Access Journals (Sweden)

    EiThuzarKhin

    2015-06-01

    Full Text Available Abstract Globally many vehicle types operate on the highway system. And highway infrastructure stakeholders have developed a number of products intended to facilitate the identification of critical assets and provide guidance for conductiong security planning. Many of these productsare conducted as joint efforts between the state highway agencies.The main aim of the system is to have a network between Roadside Unit RSU and On-Board Unit OBU and between On-Board Unit OBU and another On-Board Unit OBU . ZigBee is a consortium of software hardware and services companies having improved a common standard for wireless networking of sensors and microcontrollers.Bluetooth is a technology of wireless standard for exchanging data for short distances. In this article we point out sending data to the drivers via not only ZigBee module but also Bluetooth module.

  12. WIRELESS DIGITAL STETHOSCOPE USING BLUETOOTH TECHNOLGY

    Directory of Open Access Journals (Sweden)

    ISAAC A. OPPONG

    2012-08-01

    Full Text Available Stethoscopes are used to listen to acoustic signals from the internal organs of the human body. Although stethoscopes play a very important role in the diagnosis process, the chest piece and the connecting cable are known to facilitate transmission of pathogens from patient to patient and from patient to the user. Replacing the connecting cable with a wireless system may help reduce the potential risk and further allow broadcasting of the signals to multi-users for examination. This work reports on the design of a two-piece Bluetooth-based wireless system that eliminates the connecting cables in electronic stethoscopes. The design consists of a Bluetooth basedintegrated chest-piece module for captured acoustic sound transmission and a microcontroller-based (MSP430 head-piece receiver module for decoding the data for the three operational modes of the stethoscope. The design was first tested using a chirp signal source with frequency of 10 Hz – 5 kHz. Results obtained for the threeoperational frequency bands of the stethoscope were consistent with the expected behaviour of the stethoscope.

  13. Bluetooth Low Energy EKG-lähetin

    OpenAIRE

    Tikkanen, Ville

    2013-01-01

    Tämän opinnäytetyön tarkoituksena oli tehdä markkinaselvitys tarjolla olevista Bluetooth low energy-moduuleista ja mikropiireistä. Tehdyn selvityksen perusteella valittiin yksi tuote, johonka pohjautuvalla kehitysalustalla tutkittiin ohjelmoimalla jatkuvan EKG-signaalin mittausta, analogia-digitaalimuunnosta sekä muunnetun datan lähetystä päätelaitteelle. Keskeisenä osa-alueena oli Bluetooth low energy -teknologian hyödyntäminen työn toteutuksessa. Työn tarkoituksena oli tarkastella Bluetooth...

  14. A Network Traffic Control Enhancement Approach over Bluetooth Networks

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun;

    2003-01-01

    This paper analyzes network traffic control issues in Bluetooth data networks as convex optimization problem. We formulate the problem of maximizing of total network flows and minimizing the costs of flows. An adaptive distributed network traffic control scheme is proposed as an approximated...... solution of the stated optimization problem that satisfies quality of service requirements and topologically induced constraints in Bluetooth networks, such as link capacity and node resource limitations. The proposed scheme is decentralized and complies with frequent changes of topology as well...... as capacity limitations and flow requirements in the network. Simulation shows that the performance of Bluetooth networks could be improved by applying the adaptive distributed network traffic control scheme...

  15. Study of Wireless Digital Temperature and Humidity Sensor Based on Bluetooth Technology%基于Bluetooth技术--线数字温/湿度传感器的研究

    Institute of Scientific and Technical Information of China (English)

    梁玉红

    2006-01-01

    Bluetooth(蓝牙)技术可实现短距离低功耗无线网络通信.本文提出基于Bluetooth技术的分布式无线网络测控系统的体系结构,并设计了系统的前、后端硬件构成.由此得出Bluetooth传感器的工作原理与功能,重点对Bluetooth温/湿度传感器的电路结构和软件功能及其应用进行了研究和开发.Bluetooth温/湿度传感器由单片机80C51、温/湿度数字传感器模块SH11/15和Bluetooth模块BlueCore01等组成,文中通过对Bluetooth模块BlueCore01和温/湿度数字传感器模块SH11/15的结构特性的分析,对80C51与BlueCore和SH11/15之间接口和通信的软、硬件进行了设计.Bluetooth传感器可实现测控微微网和互联网,扩大和增强了测控应用领域和功能.

  16. Bluetooth ASIC及其嵌入式应用%Bluetooth ASIC interface and its embedded application

    Institute of Scientific and Technical Information of China (English)

    黄晓林

    2004-01-01

    介绍了bluetooth ASIC内部结构、特性以及接口逻辑和嵌入式应用设计实例.由bluetooth基带控制器与无线射频收发器接口组成的bluetooth模块,通过UART/PCM和USB向数字和语音设备提供全兼容的bluetooth接口,可方便地构成bluetooth设备.

  17. Bluetooth Communication Interface for EEG Signal Recording in Hyperbaric Chambers.

    Science.gov (United States)

    Pastena, Lucio; Formaggio, Emanuela; Faralli, Fabio; Melucci, Massimo; Rossi, Marco; Gagliardi, Riccardo; Ricciardi, Lucio; Storti, Silvia F

    2015-07-01

    Recording biological signals inside a hyperbaric chamber poses technical challenges (the steel walls enclosing it greatly attenuate or completely block the signals as in a Faraday cage), practical (lengthy cables creating eddy currents), and safety (sparks hazard from power supply to the electronic apparatus inside the chamber) which can be overcome with new wireless technologies. In this technical report we present the design and implementation of a Bluetooth system for electroencephalographic (EEG) recording inside a hyperbaric chamber and describe the feasibility of EEG signal transmission outside the chamber. Differently from older systems, this technology allows the online recording of amplified signals, without interference from eddy currents. In an application of this technology, we measured EEG activity in professional divers under three experimental conditions in a hyperbaric chamber to determine how oxygen, assumed at a constant hyperbaric pressure of 2.8 ATA , affects the bioelectrical activity. The EEG spectral power estimated by fast Fourier transform and the cortical sources of the EEG rhythms estimated by low-resolution brain electromagnetic analysis were analyzed in three different EEG acquisitions: breathing air at sea level; breathing oxygen at a simulated depth of 18 msw, and breathing air at sea level after decompression. PMID:25608308

  18. Development and Evaluation of a Python Telecare System Based on a Bluetooth Body Area Network

    Directory of Open Access Journals (Sweden)

    Morón MJ

    2011-01-01

    Full Text Available This paper presents a prototype of a telemonitoring system, based on a BAN (Body Area Network that is integrated by a Bluetooth (BT pulse oximeter, a GPS (Global Positioning System unit, and a smartphone. The smartphone is the hardware platform for running a Python software that manages the Bluetooth piconet formed by the sensors. Thus the smartphone forwards the data received from the Bluetooth devices, encoded into JSON (JavaScript Object Notation, to a central server. This server provides universal access to the information of the patient's location and health status through a web application based on AJAX (Asynchronous JavaScript and XML technology. Additionally, for the described prototype, the study presents some performance analyses about several topics that are of great interest for the applicability of the prototype: (i the technique used to forward the patient's location and health status, (ii the power consumption of the smartphone (which is compared with the measurements of an equivalent software developed for Java Micro Edition platform, and (iii the web browser compatibility of the web application developed for the control and monitoring of the patients.

  19. Mobile Mapping of Sporting Event Spectators Using Bluetooth Sensors: Tour of Flanders 2011

    Directory of Open Access Journals (Sweden)

    Frederik van Bossche

    2012-10-01

    Full Text Available Accurate spatiotemporal information on crowds is a necessity for a better management in general and for the mitigation of potential security risks. The large numbers of individuals involved and their mobility, however, make generation of this information non-trivial. This paper proposes a novel methodology to estimate and map crowd sizes using mobile Bluetooth sensors and examines to what extent this methodology represents a valuable alternative to existing traditional crowd density estimation methods. The proposed methodology is applied in a unique case study that uses Bluetooth technology for the mobile mapping of spectators of the Tour of Flanders 2011 road cycling race. The locations of nearly 16,000 cell phones of spectators along the race course were registered and detailed views of the spatiotemporal distribution of the crowd were generated. Comparison with visual head counts from camera footage delivered a detection ratio of 13.0 ± 2.3%, making it possible to estimate the crowd size. To our knowledge, this is the first study that uses mobile Bluetooth sensors to count and map a crowd over space and time.

  20. A Bluetooth/PDR Integration Algorithm for an Indoor Positioning System.

    Science.gov (United States)

    Li, Xin; Wang, Jian; Liu, Chunyan

    2015-01-01

    This paper proposes two schemes for indoor positioning by fusing Bluetooth beacons and a pedestrian dead reckoning (PDR) technique to provide meter-level positioning without additional infrastructure. As to the PDR approach, a more effective multi-threshold step detection algorithm is used to improve the positioning accuracy. According to pedestrians' different walking patterns such as walking or running, this paper makes a comparative analysis of multiple step length calculation models to determine a linear computation model and the relevant parameters. In consideration of the deviation between the real heading and the value of the orientation sensor, a heading estimation method with real-time compensation is proposed, which is based on a Kalman filter with map geometry information. The corrected heading can inhibit the positioning error accumulation and improve the positioning accuracy of PDR. Moreover, this paper has implemented two positioning approaches integrated with Bluetooth and PDR. One is the PDR-based positioning method based on map matching and position correction through Bluetooth. There will not be too much calculation work or too high maintenance costs using this method. The other method is a fusion calculation method based on the pedestrians' moving status (direct movement or making a turn) to determine adaptively the noise parameters in an Extended Kalman Filter (EKF) system. This method has worked very well in the elimination of various phenomena, including the "go and back" phenomenon caused by the instability of the Bluetooth-based positioning system and the "cross-wall" phenomenon due to the accumulative errors caused by the PDR algorithm. Experiments performed on the fourth floor of the School of Environmental Science and Spatial Informatics (SESSI) building in the China University of Mining and Technology (CUMT) campus showed that the proposed scheme can reliably achieve a 2-meter precision. PMID:26404277

  1. Secure Architecture for M-Learning Bluetooth Services

    Directory of Open Access Journals (Sweden)

    Catalin BOJA

    2010-01-01

    Full Text Available The paper describes a secure architecture for an M-Learning system that uses Bluetooth wireless networks to offer services for mobile devices. The solution is implemented on the Java ME platform using SATSA-CRYPTO. The access to these services is made possible by using Bluetooth capabilities of a mobile device that is part of a distributed system. The paper analyzes the security aspect of accessing the Bluetooth service from the confidentiality, integrity and authenticity, point of view. There are described the security options implemented by the Bluetooth Protocol, as described in JSR 82, for the Java ME platform. The proposed secure architecture solution authenticates users and their devices, using cryptographic techniques, without using devices IMEI, International Mobile Equipment Identity.

  2. Manipulator Controlled since a Smartphone by Bluetooth

    International Nuclear Information System (INIS)

    We present the design of transmitter interface of data between a microcontroller and Smartphone to control a robot. We used a Bluetooth module to send the commands to control the moving of the manipulator. The system is formed by three parts: the first part, the program made in Android. It is run on the Smartphone that controls the position of the robot. The second part is the reception board based in the PIC18F4550 that energizes the joints of the manipulator. The last part is the driver. It use an integrated circuit L293D that is configured in two full bridges H. This system is a good tool for learning of programing, sensors, actuators, robotic, electronic and design electronic

  3. Manipulator Controlled since a Smartphone by Bluetooth

    Science.gov (United States)

    Sánchez-Niño, F.; Rodríguez Pedroza, G.; Castillo Baldivia, E. G.

    2015-01-01

    We present the design of transmitter interface of data between a microcontroller and Smartphone to control a robot. We used a Bluetooth module to send the commands to control the moving of the manipulator. The system is formed by three parts: the first part, the program made in Android. It is run on the Smartphone that controls the position of the robot. The second part is the reception board based in the PIC18F4550 that energizes the joints of the manipulator. The last part is the driver. It use an integrated circuit L293D that is configured in two full bridges H. This system is a good tool for learning of programing, sensors, actuators, robotic, electronic and design electronic.

  4. Bluetooth telemetry system for a wearable electrocardiogram

    Science.gov (United States)

    Green, Ryan B.

    The rise of wireless networks has led to a new market in medicine: remote patient monitoring. Practitioners now desire to monitor the health conditions of their patients after hospital release. With the large number of cardiac related deaths and this new demand in medicine being the motivation, this study developed a BluetoothRTM telemetry system for a wearable Electrocardiogram. This study also developed a compression t-shirt to hold the ECG and telemetry system. This device communicates the ECG signal of a patient to an Android device within the ISM frequency bands (2.4-2.48 GHz) where the data is displayed and stored in real time. This study is a stepping stone toward more portable heart monitoring that can communicate with the doctor in real time from remote locations.

  5. Precise Energy Modeling for the Bluetooth Low Energy Protocol

    OpenAIRE

    Kindt, Philipp; Yunge, Daniel; Diemer, Robert; Chakraborty, Samarjit

    2014-01-01

    Bluetooth Low Energy (BLE) is a wireless protocol well suited for ultra-low-power sensors running on small batteries. BLE is described as a new protocol in the official Bluetooth 4.0 specification. To design energy-efficient devices, the protocol provides a number of parameters that need to be optimized within an energy, latency and throughput design space. To minimize power consumption, the protocol parameters have to be optimized for a given application. Therefore, an energy-model that can ...

  6. Bluetooth Smart连接技术详解

    Institute of Scientific and Technical Information of China (English)

    任凯

    2015-01-01

    This article introduces the technical details about Bluetooth Smart connection establishment, to help developer to understand the frame structure of CONNECT_REQ, and emphatically introduces the meaning of LLData field.%详细介绍了Bluetooth Smart连接时的技术细节,帮助开发者了解CONNECT_REQ帧结构中LL原Data所需要使用的各项参数的意义。

  7. An empirical performance study of Intra-vehicular Wireless Sensor Networks under WiFi and Bluetooth interference

    OpenAIRE

    Lin, Jiun-Ren; Talty, Timothy; Tonguz, Ozan K.

    2015-01-01

    Intra-Vehicular Wireless Sensor Network (IVWSN) is a new automotive architecture that applies wireless technologies to the communications between Electrical Control Units (ECUs) and sensors. It can potentially help achieve better fuel economy, reduce wiring complexity, and support additional new applications. In the existing works, most of the popular wireless technologies applied on IVWSNs occupy the same 2.4 GHz ISM frequency bands as WiFi and Bluetooth do. It is therefore essential to eval...

  8. Scenario driven evaluation and interference mitigation proposals for Bluetooth and high data rate Bluetooth enabled consumer electronic devices

    OpenAIRE

    Arumugam, AK; Fletcher, PN; Nix, AR; Armour, SMD; Lee, BS

    2002-01-01

    This paper investigates the effects of interference occurring between Bluetooth and high data rate Bluetooth enabled consumer electronic devices in the home and office environment. Software simulated results for frequency collisions between piconets operating in both synchronous and asynchronous modes with typical up and downlink loading factors are presented (or time-bounded and nontime bounded electronic devices). The significance of this interference on the data throughput in a number of e...

  9. 蓝牙技术联盟推出全新的BLUETOOTH SMART商标

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    近日,蓝牙技术联盟(Bluetooth SIG)宣布,蓝牙品牌将增加Bluetooth Smart Ready BluetoothSmart两个新商标,未来将帮助消费者识别具有蓝牙4.0版本兼容性的新设备。Bluetooth Smart Ready设备包括手机、平板电脑、

  10. A fractional-N frequency synthesizer for WCDMA/Bluetooth/ZigBee applications

    International Nuclear Information System (INIS)

    A triple-mode fractional-N frequency synthesizer with a noise-filter voltage controlled oscillator (VCO) for WCDMA/Bluetooth/ZigBee applications has been implemented in 0.18-μm RF-CMOS technology. The proposed synthesizer achieves a good phase noise lower than -80 dBc/Hz in band and -115 dBc/Hz-1 MHz for the three modes, and only draws 21 mA from a 1.8 V supply. It has a high hardware sharing and a small size, only 1.5 x 1.4 mm2. The system architecture, circuit design, and measured results are also presented.

  11. An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks

    OpenAIRE

    Hinrichsen, Oscar

    2015-01-01

    Internet of Things (IoT) is a scenario that theorizes objects and people as potential nodes in an ever-growing wireless network. This idea pushes the development of low-cost wireless technologies that can run on portable power sources for months, or even years. One candidate technique that has shown promising results in this area thru the last years is BluetoothLow Energy (BLE). This thesis studies various techniques to enable and maintain large scale mesh networks over BLE communication. The...

  12. 基于蓝牙的汽车物联网应用与开发%Application and Development on Internet of Things About Automobile Based on Bluetooth

    Institute of Scientific and Technical Information of China (English)

    丁龙刚

    2011-01-01

    为了深入研究和运用汽车物联网技术,从物联网定义出发,采用蓝牙核心技术,通过实验和归纳总结,将汽车的智能发展和蓝牙技术应用紧密相联,以蓝牙“摇控”为切入点,进一步研究和开发蓝牙潜在拓展运用,获得了汽车物联的应用场景,深刻揭示了基于蓝牙的汽车物联网应用和技术解决方案,得到了汽车物联的重要技术支撑,信息覆盖面大,应用上具有开发成本低廉,应用灵活方便,技术安全可靠等特点.%In order to study and apply Internet of Things technology of automobile, starting from the definition of Internet of Things and through experiments and summarization, combining the intellectual development of Automobile and Bluetooth with the Bluetooth core technology. Bluetooth "remote control" as an entry point is used to further research and develop the expanded use of Bluetooth, and obtain the application of Internet of Things technology of automobile. The solutions and application of Internet of Things technology of automobile based on Bluetooth are revealed, an important technical support of Internet of Things technology of automobile can be obtained. The technology discussed in this paper has large information coverage range, low development cost on application, flexible operation, safe and reliable technology.

  13. An efficient approach to enhance capacity allocation over Bluetooth network

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun

    2002-01-01

    With the current development of mobile devices, short range wireless communications have become more and more popular, and research on short range wireless communications, such as Bluetooth, has gained increasing in-terest, in industry as well as in academy. This paper analyzes capacity allocation...... issues in Bluetooth network as convex optimization problem. We formulate the problem of maximizing of total network flows and minimizing the costs of flows. The hybrid distributed capacity allocation scheme HDICA is proposed as an approximated solution of the stated optimization problem that satisfies...... quality of service requirements and topologically induced constraints in the Bluetooth network, such as node and link capacity limitations. The proposed scheme is decentralized and complies with frequent changes of topology as well as capacity limitations and flow requirements in the network. Simulation...

  14. Bluetooth Platform for Wireless Measurements Using Industrial Sensors

    Directory of Open Access Journals (Sweden)

    Tadej Tašner

    2013-01-01

    Full Text Available The past decade has seen significant advancement in the field of mobile devices. Various smart devices such as cellular phones, tablets and PDAs have become universal tools in our everyday lives. Their versatility is based on their computing power, portability and their integration with other devices and services such as the World Wide Web. However, these smart devices have an even wider usability spectrum. They can also be used for wireless industrial measurements using existing sensors. The wireless connectivity of existing industrial sensors is achieved by equipping them with a Bluetooth module, which digitizes the data and passes it to any Bluetooth capable smart device for further processing, evaluation and logging. This paper describes the specially designed Bluetooth platform for wireless measurements all the way from the basic concept, through hardware, firmware and software implementation, to the sample tests and measurements.

  15. Study on Vehicle Hands Free System With Bluetooth

    Institute of Scientific and Technical Information of China (English)

    JIN Xuexin; DONG Guiju; GAO Yanxu; CUI Tianshi

    2008-01-01

    In this paper,the appfication of bluetooth in vehicle hands free system was described,then the hardware and software structure of system had been designed.Finally,selection about electron parts and chip of electronic equipments was presented in detail.

  16. Détecteur de présence bluetooth

    OpenAIRE

    Dubuis, Jimmy; Pompili, Pierre

    2014-01-01

    Le but de ce projet est de concevoir une unité de contrôle utilisant la technologie Bluetooth Low Energy afin d’autoriser ou non l’alimentation d’une lampe ou d’un actuateur par la seule présence d’un téléphone mobile.

  17. A combinatorial model of malware diffusion via bluetooth connections.

    Directory of Open Access Journals (Sweden)

    Stefano Merler

    Full Text Available We outline here the mathematical expression of a diffusion model for cellphones malware transmitted through Bluetooth channels. In particular, we provide the deterministic formula underlying the proposed infection model, in its equivalent recursive (simple but computationally heavy and closed form (more complex but efficiently computable expression.

  18. Middleware Solutions for Self-organizing Multi-hop Multi-path Internet Connectivity Based on Bluetooth

    Science.gov (United States)

    Bellavista, Paolo; Giannelli, Carlo

    The availability of heterogeneous wireless interfaces and of growing computing resources on widespread portable devices pushes for enabling innovative deployment scenarios where mobile nodes dynamically self-organize to offer Internet connectivity to their peers via dynamically established multi-hop multi-path opportunities. We claim the suitability of novel, mobility-aware, and application-layer middleware based on lightweight evaluation indicators to support the complexity of that scenario, involving heterogeneous wireless technologies over differentiated and statically unpredictable execution environments. To validate these claims, we have implemented an innovative middleware that manages the durability/throughput-aware formation and selection of different multi-hop paths simultaneously. This paper specifically focuses on how our middleware effectively exploits Bluetooth for multi-hop multi-path networking, by pointing out the crucial role of i) compliance with standard solutions to favor rapid deployment over off-the-shelf equipment and ii) the reduction of the usual overhead associated with some expensive Bluetooth operations, e.g., device inquiry. In particular, the paper shows how it is possible, on the one hand, to extend JSR-82 to portably access monitoring indicators for lightweight mobility/throughput estimations and, on the other hand, to reduce the time needed to update the set of available Bluetooth-based connectivity opportunities via approximated and lightweight forms of discovery.

  19. Introduction of Bluetooth Low Energy Application%蓝牙低耗技术的应用

    Institute of Scientific and Technical Information of China (English)

    黎卓芳; 梁然; 寿正禹

    2011-01-01

    文章首先对蓝牙低耗能(Low Energy)技术的基本信息以及其配置文件(Profile)的基础结构进行简单的介绍,然后根据蓝牙产业联盟(SIG)最新发布的配置文件和服务,分析低耗能配置文件的技术特点和应用范围,并设计出一套车辆的蓝牙低耗能系统,在对车辆系统的介绍过程中,详细阐述了低耗能配置文件的应用场景,最后对蓝牙低耗能技术的应用现状和前景进行分析和展望。%The article first gives a brief introduction of Bluetooth Low Energy technology and Low Energy profile structure.Then it designs a Bluetooth Low Energy car system according to the feature and application of those newly released Low Energy profiles and services,and gives a detailed description of those profiles used in the car system.

  20. An Experimental Performance Evaluation and Compatibility Study of the Bluetooth Low Energy Based Platform for ECG Monitoring in WBANs

    OpenAIRE

    Farid Touati; Ochirkhand Erdene-Ochir; Waiser Mehmood; Ammad Hassan; Adel Ben Mnaouer; Brahim Gaabab; Rasid, Mohd Fadlee A.; Lazhar Khriji

    2015-01-01

    A long term healthcare monitoring system requires battery operated devices with low-power technologies. Researchers tried to adapt various short-range technologies for Wireless Body Area Networks (WBANs) in ubiquitous health monitoring. The classical Bluetooth is known for its greedy power consumption, IrDA and NFC require line-of-sight conditions, and ANT has weak coexistence features and interference issues. A typical choice remains ZigBee/6LoWPAN over IEEE 802.15.4 based solutions in WBANs...

  1. Research on the Access Manners of Wireless Campus Network Based on the Bluetooth Technique%基于蓝牙的无线校园网接入模式研究

    Institute of Scientific and Technical Information of China (English)

    金永贤; 周家庆

    2003-01-01

    Bluetooth technique is a kind of close-distance wireless communication standard which has low wastage .Using bluetooth technique in campus network can form bluetooth wireless campus network . This paper analyzestopologic structure of bluetooth technique and introduces the concept of bluetooth wireless campus network ,at lastthe application manners of bluetooth technique in campus network are studied in detail.

  2. Aplicación móvil para acceder a la información académica de la Universidad Francisco de Paula Santander a través de una picocelda bluetooth

    Directory of Open Access Journals (Sweden)

    Adriana Patricia Wilches-Castellanos

    2009-01-01

    Full Text Available It developed a mobile application that allow to students at the Francisco de Paula Santander University, access to some academic information offered by the Institution, taking advantage of the benefits of Bluetooth technology [1]. A Bluetooth picocell was designed and implemented to allow to users to set a communication between a cellular mobile device with Bluetooth technology enabled and the information source. We performed a quantitative assessment of the proposed system in two different environments: with and without obstacles; and also we assessed the potential for success of implementation through five emes (5M’s analysis [2]. The evaluation results indicate that the system is a viable alternative to offer free access to information within a certain range of coverage.

  3. Bluetooth Low Energy and Smartphones for Proximity-Based Automatic Door Locks

    OpenAIRE

    Andersson, Tim

    2014-01-01

    Bluetooth Low Energy is becoming increasingly popular in mobile applications due to the possibility of using it for proximity data. Proximity can be estimated by measuring the strength of the Bluetooth signal, and actions can then be performed based on a user's proximity to a certain location or object. One of the most interesting applications of proximity information is automating common tasks; this paper evaluates Bluetooth Low Energy in the context of using smartphones to automatically unl...

  4. Innovative techniques for extending the range and node limits in Bluetooth-based wireless sensor networks

    Science.gov (United States)

    Fraser, Matthew J.; James, Daniel A.; Thiel, David V.

    2005-12-01

    Wireless networks for sensor applications are required to support an adequate data throughput, range, node density and must consume as little power as possible. The Bluetooth specification has been designed for low power, medium data rate, cable replacement solutions and is therefore useful for wireless sensor networks. However it has a limitation of a maximum number of eight active devices per Bluetooth network (piconet). To be useful in wireless sensor networks a Bluetooth piconet requires a means to communicate to more than the maximum of eight active devices. This paper demonstrates techniques for expanding the usefulness of Bluetooth for wireless sensor networks. This has been done by using multiple access points, sharing the active member addresses of the Bluetooth piconet and utilising multiple piconet and scatternet tree structures. A comparison of existing piconet handoff mechanisms has been conducted and these have been evaluated for feasibility with the available hardware's limitations. Scatternet and piconet sharing mechanisms have been developed that allow a Bluetooth structure to support more than eight devices. These structures have been implemented with existing Bluetooth hardware and are compared via theoretical simulation and experimental results. The developed network of multiple Bluetooth access points combined with the developed Bluetooth structures provides several wireless networks suitable for sensor applications.

  5. Development of a Bluetooth Low Energy Educational Framework

    OpenAIRE

    Osamwonyi, Nosakhare

    2016-01-01

    This project consisted of two tasks. The first one was to provide a theoretical documentation of the Bluetooth Low Energy (BLE) device whose first generational versions emerged in 2010. The theoretical documentation basically covers the protocol stack of the device, which consists of the Controller, Host and Application layer, all of which govern how communication should ensue. The controller layer is the point of BLE to BLE interface, while the host layers have to do with the internal logic...

  6. Smartphone-Based Indoor Localization with Bluetooth Low Energy Beacons

    OpenAIRE

    Yuan Zhuang; Jun Yang; You Li; Longning Qi; Naser El-Sheimy

    2016-01-01

    Indoor wireless localization using Bluetooth Low Energy (BLE) beacons has attracted considerable attention after the release of the BLE protocol. In this paper, we propose an algorithm that uses the combination of channel-separate polynomial regression model (PRM), channel-separate fingerprinting (FP), outlier detection and extended Kalman filtering (EKF) for smartphone-based indoor localization with BLE beacons. The proposed algorithm uses FP and PRM to estimate the target’s location and the...

  7. A reconfigurable analog baseband circuit for WLAN, WCDMA, and Bluetooth

    International Nuclear Information System (INIS)

    A reconfigurable analog baseband circuit for WLAN, WCDMA, and Bluetooth in 0.35 μm CMOS is presented. The circuit consists of two variable gain amplifiers (VGA) in cascade and a Gm-C elliptic low-pass filter (LPF). The filter-order and the cut-off frequency of the LPF can be reconfigured to satisfy the requirements of various applications. In order to achieve the optimum power consumption, the bandwidth of the VGAs can also be dynamically reconfigured and some Gm cells can be cut off in the given application. Simulation results show that the analog baseband circuit consumes 16.8 mW for WLAN, 8.9 mW for WCDMA and only 6.5 mW for Bluetooth, all with a 3 V power supply. The analog baseband circuit could provide -10 to +40 dB variable gain, third-order low pass filtering with 1 MHz cut-off frequency for Bluetooth, fourth-order low pass filtering with 2.2 MHz cut-off frequency for WCDMA, and fifth-order low pass filtering with 11 MHz cut-off frequency for WLAN, respectively. (semiconductor integrated circuits)

  8. A reconfigurable analog baseband circuit for WLAN, WCDMA, and Bluetooth

    Energy Technology Data Exchange (ETDEWEB)

    Tong Tao; Chi Baoyong; Wang Ziqiang; Zhang Ying; Jiang Hanjun; Wang Zhihua, E-mail: tongt05@gmail.co [Institute of Microelectronics, Tsinghua University, Beijing 100084 (China)

    2010-05-15

    A reconfigurable analog baseband circuit for WLAN, WCDMA, and Bluetooth in 0.35 {mu}m CMOS is presented. The circuit consists of two variable gain amplifiers (VGA) in cascade and a G{sub m}-C elliptic low-pass filter (LPF). The filter-order and the cut-off frequency of the LPF can be reconfigured to satisfy the requirements of various applications. In order to achieve the optimum power consumption, the bandwidth of the VGAs can also be dynamically reconfigured and some G{sub m} cells can be cut off in the given application. Simulation results show that the analog baseband circuit consumes 16.8 mW for WLAN, 8.9 mW for WCDMA and only 6.5 mW for Bluetooth, all with a 3 V power supply. The analog baseband circuit could provide -10 to +40 dB variable gain, third-order low pass filtering with 1 MHz cut-off frequency for Bluetooth, fourth-order low pass filtering with 2.2 MHz cut-off frequency for WCDMA, and fifth-order low pass filtering with 11 MHz cut-off frequency for WLAN, respectively. (semiconductor integrated circuits)

  9. Bluetooth Wireless Monitoring, Managing and Control for Inter Vehicle in Vehicular Ad-Hoc Networks

    Directory of Open Access Journals (Sweden)

    Helia Mamdouhi

    2009-01-01

    Full Text Available Problem statement: The car users expect more and more accessories available in their cars, but the accessories available needed manage by driver manually and not properly manage by smart system. All these accessories are able to control by user manually using different and standalone controllers. Besides, the controller itself uses RF technology which is not existed in mobile devices. So there is lack of a comprehensive and integrated system to manage, control and monitor all the accessories inside the vehicle by using a personal mobile phone. Design and development of an integrated system to manage and control all kind of inter vehicle accessories, improving the efficiency and functionality of inter vehicle communications for the car users. Approach: The proposed system was based on Microcontroller, Bluetooth and Java technology and in order to achieve the idea of an intelligence car with ability to uses personal mobile hand phone as a remote interface. Development strategies for this innovation are includes two phases: (1 java based application platform-designed and developed for smart phones and PDAs (2 hardware design and implementation of the receiver side-compatible smart system to managing and interconnection between all inside accessories based on monitoring and controlling mechanisms by Bluetooth media. Results: The designed system included hardware and software and the completed prototype had tested successfully on the real vehicles. During the testing stage, the components and devices were connected and implemented on the vehicle and the user by installing the system interface on a mobile phone is able to monitor and manage the vehicle accessories, the efficiency, adaptively and range of functionality of the system has proved with the various car accessories. Conclusion: This study involved design a new system to decrease the hot temperature inside a car that affecting the health of the car driver and the car driver is able to control

  10. INSIGHT: RFID and Bluetooth enabled automated space for the blind and visually impaired.

    Science.gov (United States)

    Ganz, Aura; Gandhi, Siddhesh Rajan; Wilson, Carole; Mullett, Gary

    2010-01-01

    In this paper we introduce INSIGHT, an indoor location tracking and navigation system to help the blind and visually impaired to easily navigate to their chosen destination in a public building. INSIGHT makes use of RFID and Bluetooth technology deployed within the building to locate and track the users. The PDA based user device interacts with INSIGHT server and provides the user navigation instructions in an audio form. The proposed system provides multi-resolution localization of the users, facilitating the provision of accurate navigation instructions when the user is in the vicinity of the RFID tags as well as accommodating a PANIC button which provides navigation instructions when the user is anywhere in the building. Moreover, the system will continuously monitor the zone in which the user walks. This will enable the system to identify if the user is located in the wrong zone of the building which may not lead to the desired destination. PMID:21096968

  11. An analysis of visitors' length of stay through noninvasive Bluetooth monitoring in the Louvre Museum

    CERN Document Server

    Yoshimura, Yuji; Ratti, Carlo

    2016-01-01

    Art Museums traditionally employ observations and surveys to enhance their knowledge of visitors' behavior and experience. However, these approaches often produce spatially and temporally limited empirical evidence and measurements. Only recently has the ubiquity of digital technologies revolutionized the ability to collect data on human behavior. Consequently, the greater availability of large-scale datasets based on quantifying visitors' behavior provides new opportunities to apply computational and comparative analytical techniques. In this paper, we attempt to analyze visitors' behavior in the Louvre Museum from anonymized longitudinal datasets collected from noninvasive Bluetooth sensors. We examine visitors' length of stay in the museum and consider this relationship with occupation density around artwork. This data analysis increases the knowledge and understanding of museum professionals related to the experience of visitors.

  12. Principles and Implementation of Low Energy Bluetooth 4.0 Protocol%低能耗蓝牙4.0协议原理与实现方法

    Institute of Scientific and Technical Information of China (English)

    徐金苟

    2012-01-01

    介绍了最新的蓝牙技术规范4.0协议中低能耗部分的协议原理以及协议架构.讨论了在分层结构通信协议实现中遇到的主要问题和应对的策略.结合通信协议实现的通常策略,讨论了低能耗蓝牙4.0协议实现的方法与策略.%This paper presents the principles and implementation method of Low Energy Bluetooth 4.0 core protocol technology. First, it introduces the protocol topology of ultra low power bluetooth 4.0 specification, and then presents protocol principles and especially working scheme of communication protocol, at last it describes a method of implementation of Low Energy Bluetooth protocol.

  13. 关于Bluetooth跳频序列的研究%The Study of Hop Frequency Sequence in Bluetooth

    Institute of Scientific and Technical Information of China (English)

    闫亮; 周正

    2001-01-01

    根据工作环境和性能要求,Bluetooth采用了跳频技术作为接入方式.针对Bluetooth跳频系统中跳频序列的产生问题做了分析,并提出了改进的方案.%According to operational environment and functional requirements,the FH-CDMA (Frequency Hopping Code Divided Multiplex Access ) technology is used in Bluetooth system.The paper analyzes the generation of the hopping frequency sequence,and Auggested a improved scheme.

  14. Specification for Digital Channel Selection Filters in a Bluetooth Capable HiperLAN/2 Receiver

    NARCIS (Netherlands)

    Hoeksema, Fokke; Schiphorst, Roel; Slump, Kees

    2002-01-01

    In this paper we first briefly describe how the analog part of the channel selection function for a HiperLAN/2 receiver can be used as part of the channel selection function for a Bluetooth receiver. Thereafter we proceed to specify the overall requirements for the Bluetooth channel selection functi

  15. Functional Analysis of a SDR Based Bluetooth/HiperLAN Terminal Demonstrator

    NARCIS (Netherlands)

    Hoeksema, Fokke; Schiphorst, Roel; Slump, Kees

    2001-01-01

    In our Software Defined Radio (SDR) project we aim at combining two different types of standards, Blue-tooth and HiperLAN/2 on one common hardware platform. HiperLAN/2 is a high-speed Wireless LAN (WLAN) standard, whereas Bluetooth is a low-cost and low-speed Personal Area Network (PAN) standard. An

  16. Improving The Accuracy Of Bluetooth Based Travel Time Estimation Using Low-Level Sensor Data

    DEFF Research Database (Denmark)

    Araghi, Bahar Namaki; Tørholm Christensen, Lars; Krishnan, Rajesh;

    2013-01-01

    Bluetooth sensors have a large detection zone compared to other static Vehicle Re-Identification Systems (VRIS). Although a larger detection zone increases the probability of detecting a Bluetooth-enabled device in a fast-moving vehicle, it increases the probability of multiple detection events t...

  17. The Design of Key Finder Using Bluetooth Low Energy Technology

    OpenAIRE

    Ma, Yu

    2016-01-01

    I can not always find my keys or my wallet, but in fact I did not loose them, I merely put them randomly somewhere I can not remember. However, this randomly loosing things behavior bothers me quit much, I suppose many people are annoyed by not finding their keys. In this thesis, a small PCB was designed that can be hung on key and when the keys are lost, the owner can trigger a buzz on a mobile app and the key finder will start to buzz.

  18. Bluetooth技术概论%Bluetooth Technology Conspectus

    Institute of Scientific and Technical Information of China (English)

    蒋伟荣; 黄晓林

    2003-01-01

    本文概述Bluetooth技术的协议栈、硬件系统的功能、Bluetooth网络Piconet和Scattemet的原理以及连接、数据分组、纠错、鉴权和保密等主要技术.Bluetooth技术以低成本、近距离无线链接为基础,为固定设备与移动设备之间建立低功耗的特别互联,实现数据和语音通信,这使Bluetooth技术有着广阔的应用前景.

  19. A Protocol Bridge Between Bluetooth Low Energy and IEEE 802.15.4 Based LR-WPANs: Concept, Design and Prototype

    OpenAIRE

    Svendsen, Tobias Borén; Trydal, Dag-Are; Brekke, Anders

    2013-01-01

    The interconnection between electronic devices is increasing and wireless technologies are replacing wires at a high pace. Smartphones are today common property and their area of application is growing rapidly. Even so, a smartphone is still no unified device capable of transceiving every possible wireless protocol. Especially are the standards of the industry often not supported by consumer products.This master thesis presents a possible design for a protocol bridge between Bluetooth Low Ene...

  20. Bluetooth Indoor Positioning System using Fingerprinting

    DEFF Research Database (Denmark)

    Frost, Christian; Jensen, Casper Svenning; Luckow, Kasper Søe;

    2011-01-01

    Indoor Positioning has been an active research area in the last decade, but so far, commercial Indoor Positioning Systems (IPSs) have been sparse. The main obstacle towards widely available IPSs has been the lack of appropriate, low cost technologies, that enable indoor positioning. While Wi-Fi i...

  1. Android Application to Assess Smartphone Accelerometers and Bluetooth for Real-Time Control

    Directory of Open Access Journals (Sweden)

    M. A. Nugent

    2015-03-01

    Full Text Available Modern smart phones have evolved into sophisticated embedded systems, incorporating hardware and software features that make the devices potentially useful for real-time control operations. An object-oriented Android application was developed to quantify the performance of the smartphone’s on-board linear accelerometers and bluetooth wireless module with a view to potentially transmitting accelerometer data wirelessly between bluetooth-enabled devices. A portable bluetooth library was developed which runs the bluetooth functionality of the application as an independent background service. The performance of bluetooth was tested by pinging data between 2 smartphones, measuring round-trip-time and round-trip-time variation (jitter against variations in data size, transmission distance and sources of interference. The accelerometers were tested for sampling frequency and sampling frequency jitter.

  2. Bluetooth Smart成物联网应用的推手--访Bluetooth SIG首席营销官卓文泰

    Institute of Scientific and Technical Information of China (English)

    王莹

    2014-01-01

    今年8月,蓝牙技术联盟(Bluetooth SIG)在上海召开了蓝牙亚洲大会,其中可见Bluetooth Smart正迅速崛起,智能家居、可穿戴设备、消费类电子和Beacons的增长潜力最大。

  3. Bluetooth Cafe无限科技体验

    Institute of Scientific and Technical Information of China (English)

    罗国昭

    2007-01-01

    7月20日,蓝牙技术联盟(Bluetooth Special Interest Group,SIG)携Parrot、Jabra、Motorola和iTech向消费者展示各种最受欢迎以及最新的蓝牙产品。此外,蓝牙技术联盟还在今年3月宣布了全新的蓝牙规格内容.即蓝牙核心规格2.1版本及EDR(Enhanced Data Rate,更高数据传输速率).

  4. Bluetooth low energy -kehitysympäristö

    OpenAIRE

    Tervakangas, Sallamaari

    2013-01-01

    Insinöörityön tavoitteena oli suunnitella ja toteuttaa langaton sensorin mittausjärjestelmä. Testattavana sensorina toimi painesensori. Työn idea tuli Bonwell Intelligencen tarpeesta tutkia erilaisia langattomia mahdollisuuksia mittausjärjestelmän toteuttamiseen, ja tämän työn langattomaksi teknologiaksi valikoitui Bluetooth low energy. Mittausympäristössä oli tarkoituksena mitata painesensorilta tulevaa dataa ja siirtää se langattomasti tietokoneelle tarkasteltavaan muotoon. Ennen kaikkea su...

  5. Google宣布安卓将于今年支持Bluetooth Smart Ready

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    在5月16日举行的Google I/O开发者年会上,Google宣布未来几个月内其安卓操作系统将全面支持Bluetooth SmartReady和Bluetooth Smart设备。采用新版安卓系统的移动电话和平板设备,只要搭载双模蓝牙芯片即属Bluetooth SmartReady规格。Bluetooth Smart Ready为蓝牙技术的进阶标准,几乎可与所有支持蓝牙技术的电子产品兼容,包括键盘、耳机,以及超级省电的下一代Bluetooth Smart智能应用配件(Bluetooth Smart appcessory),如FitBit Flex智能腕带及Pebble智能手表等。Bluetooth SIG首席市场官卓文泰(Suke Jawanda)表示:

  6. Software platform for health monitoring embedded system with Bluetooth LE capabilities

    OpenAIRE

    Theorell, Jim

    2015-01-01

    With starting point in a project called the HealthyWay project, this report explores how one can create bluetooth low energy applications on a nRF51822 MCU. The nRF51822 is the heart of an embedded system designed to measure ECG signals, breathing and coughing in order to send this information through bluetooth to a smartphone. How to use bluetooth low energy is subject to research and the results are a main application as well as a collection of so services used for communication between blu...

  7. Bluetooth wireless monitoring, diagnosis and calibration interface for control system of fuel cell bus in Olympic demonstration

    Energy Technology Data Exchange (ETDEWEB)

    Hua, Jianfeng; Lin, Xinfan; Xu, Liangfei; Li, Jianqiu; Ouyang, Minggao [Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing100084 (China)

    2009-01-15

    With the worldwide deterioration of the natural environment and the fossil fuel crisis, the possible commercialization of fuel cell vehicles has become a hot topic. In July 2008, Beijing started a clean public transportation plan for the 29th Olympic games. Three fuel cell city buses and 497 other low-emission vehicles are now serving the Olympic core area and Beijing urban areas. The fuel cell buses will operate along a fixed bus line for 1 year as a public demonstration of green energy vehicles. Due to the specialized nature of fuel cell engines and electrified power-train systems, measurement, monitoring and calibration devices are indispensable. Based on the latest Bluetooth wireless technology, a novel Bluetooth universal data interface was developed for the control system of the fuel cell city bus. On this platform, a series of wireless portable control auxiliary systems have been implemented, including wireless calibration, a monitoring system and an in-system programming platform, all of which are ensuring normal operation of the fuel cell buses used in the demonstration. (author)

  8. Bluetooth wireless monitoring, diagnosis and calibration interface for control system of fuel cell bus in Olympic demonstration

    Science.gov (United States)

    Hua, Jianfeng; Lin, Xinfan; Xu, Liangfei; Li, Jianqiu; Ouyang, Minggao

    With the worldwide deterioration of the natural environment and the fossil fuel crisis, the possible commercialization of fuel cell vehicles has become a hot topic. In July 2008, Beijing started a clean public transportation plan for the 29th Olympic games. Three fuel cell city buses and 497 other low-emission vehicles are now serving the Olympic core area and Beijing urban areas. The fuel cell buses will operate along a fixed bus line for 1 year as a public demonstration of green energy vehicles. Due to the specialized nature of fuel cell engines and electrified power-train systems, measurement, monitoring and calibration devices are indispensable. Based on the latest Bluetooth wireless technology, a novel Bluetooth universal data interface was developed for the control system of the fuel cell city bus. On this platform, a series of wireless portable control auxiliary systems have been implemented, including wireless calibration, a monitoring system and an in-system programming platform, all of which are ensuring normal operation of the fuel cell buses used in the demonstration.

  9. Investigation with Bluetooth Sensors of Bicycle Travel Time Estimation on a Short Corridor

    OpenAIRE

    Zhenyu Mei; Dianhai Wang; Jun De Chen

    2012-01-01

    Accurate travel time information acquisition is essential to the effective planning and management of bicycle travel conditions. Traditionally, video camera data have been used as the primary source for measuring the quality of bicycle travel time. This paper deals with an investigation of bicycle travel time estimation on a short corridor, using Bluetooth sensors, based on field survey of travel time at one arterial road in Hangzhou. Usually bicycle travel time estimates with Bluetooth senso...

  10. An adaptive distributed admission approach in Bluetooth network with QoS provisions

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun

    2002-01-01

    In this paper, a method of adaptive distributed admission with end-to-end Quality of Service (QoS) provisions for real time and non real time tra°cs in Blue-tooth networks is highlighted, its mathematic background is analyzed and a simulation with bursty tra°c sources, Interrupted Bernoulli Process...... (IBP), is carried out. The simulation results show that the performance of Bluetooth network is improved when applying the distributed admission method...

  11. Design and Development of “μMeter” - An Innovative Bluetooth Application

    OpenAIRE

    Gagan Singhal; Hao Shi

    2009-01-01

    Bluetooth today, has conquered almost all mobile devices including Personal Digital Assistants (PDAs),handhelds, smart phones and mobile phones. Unlike the internet, where one has to rely on a third partyto provide a wireless connection, Bluetooth is inexpensive and easily available with no dependence onmanufacturers or service providers and can prove beneficial in short range communication. Aiming toinculcate wireless benefits in classrooms with virtually no expense and in an attempt to achi...

  12. A Bluetooth Radio Energy Consumption Model for Low Duty-Cycle Applications

    OpenAIRE

    Ekström, Martin; Bergblomma, Marcus; Lindén, Maria; Björkman, Mats; Ekström, Mikael

    2012-01-01

    This paper presents a realistic model of the radio energy consumption for Bluetooth-equipped sensor nodes used in a low-duty-cycle network. The model is based on empirical energy consumption measurements of Bluetooth modules. This model will give users the possibility to optimize their radio communication with respect to energy consumption while sustaining the data rate. This paper shows that transmission power cannot always be directly related to energy consumption. Measurements indicate tha...

  13. CheepSync: A Time Synchronization Service for Resource Constrained Bluetooth Low Energy Advertisers

    OpenAIRE

    Sridhar, Sabarish; Misra, Prasant; Gill, Gurinder Singh; Warrior, Jay

    2015-01-01

    Clock synchronization is highly desirable in distributed systems, including many applications in the Internet of Things and Humans (IoTH). It improves the efficiency, modularity and scalability of the system, and optimizes use of event triggers. For IoTH, Bluetooth Low Energy (BLE) - a subset of the recent Bluetooth v4.0 stack - provides a low-power and loosely coupled mechanism for sensor data collection with ubiquitous units (e.g., smartphones and tablets) carried by humans. This fundamenta...

  14. A Bluetooth low-energy capture and analysis tool using software-defined radio

    OpenAIRE

    Kilgour, Christopher David

    2013-01-01

    Wireless protocol analysis is a useful tool for researchers, engineers, and network security professionals. Exhaustive BTLE sniffing – the full capture and analysis of Bluetooth Low-Energy radio transmissions – has been out of reach for individuals to apply to research, engineering, and security analysis tasks. Discovering and following an arbitrary Bluetooth frequency-hopping pattern with a cheap narrow-band receiver is a complex undertaking with little chance of success. Further, the high-e...

  15. The Bluetooth Based LED Control For Arduino Test Platform By Using Mobile APP

    OpenAIRE

    Yi-Jen Mon

    2015-01-01

    Abstract The Bluetooth is a commonly known convenient and famous communication protocol. In this paper it is used to control LED mounted on Arduino test platform by using the APP of mobile phone. At first the control program is completed by Arduino development software environment then the Android APP is installed in mobile phone. Finally by using the Bluetooth of mobile phone the test platform will be connected. The LED can be controlled by APP of mobile phone. The experiment results are dem...

  16. A Solution Based on Bluetooth Low Energy for Smart Home Energy Management

    Directory of Open Access Journals (Sweden)

    Mario Collotta

    2015-10-01

    Full Text Available The research and the implementation of home automation are getting more popular because the Internet of Things holds promise for making homes smarter through wireless technologies. The installation of systems based on wireless networks can play a key role also in the extension of the smart grid towards smart homes, that can be deemed as one of the most important components of smart grids. This paper proposes a fuzzy-based solution for smart energy management in a home automation wireless network. The approach, by using Bluetooth Low Energy (BLE, introduces a Fuzzy Logic Controller (FLC in order to improve a Home Energy Management (HEM scheme, addressing the power load of standby appliances and their loads in different hours of the day. Since the consumer is involved in the choice of switching on/off of home appliances, the approach introduced in this work proposes a fuzzy-based solution in order to manage the consumer feedbacks. Simulation results show that the proposed solution is efficient in terms of reducing peak load demand, electricity consumption charges with an increase comfort level of consumers. The performance of the proposed BLE-based wireless network scenario are validated in terms of packet delivery ratio, delay, and jitter and are compared to IEEE 802.15.4 technology.

  17. Smart car design based on bluetooth control of Android phone%基于Android手机蓝牙控制的智能小车设计

    Institute of Scientific and Technical Information of China (English)

    汤莉莉; 黄伟

    2016-01-01

    This design is based on the Android,and provides a new research method for wireless smart car control by means of the bluetooth communication technology. With more and more wide use of Bluetooth in people's lives,a wireless smart car controlled by Bluetooth was designed in combination with of Bluetooth,wireless electronic technology,microcontroller tech⁃nology and Android mobile intelligent terminal platform,as well as car hardware. The forward move,backward move,right front turn,left front turn,right rear turn,left rear turn and other functions of the smart car were achieved with bluetooth control tech⁃nology. In the course of the car moving,the car’s movement state can be controlled and changed by means of APP interface but⁃ton,gravity,voice through the Android mobile client. It provides a new design method for vehicle⁃mounted electronics for wire⁃less communication. It also provides a certain reference significance for the future design of wireless car and modern smart home.%基于Android平台,借助于蓝牙通信技术,为无线智能小车的设计提供一种新的研究方法。该设计把蓝牙、无线电子技术、单片机技术和Android移动智能终端平台结合在一起,在小车硬件基础上设计蓝牙控制的无线智能小车。通过蓝牙控制实现小车的前进、后退、右转弯、左转弯、倒车右转、倒车左转等功能,并在小车行走过程中通过Android手机客户端利用APP界面的“按钮”、重力、语音分别控制改变小车运动状态,这为车载电子的无线通信设计提供了一种新的设计方法,同时也为未来的无线小车和现代智能家居的设计提供一定的参考价值。

  18. The Research and Implementation of Vehicle Bluetooth Hands-free Devices Key Parameters Downloading Algorithm

    Science.gov (United States)

    Zhang, Xiao-bo; Wang, Zhi-xue; Li, Jian-xin; Ma, Jian-hui; Li, Yang; Li, Yan-qiang

    In order to facilitate Bluetooth function realization and information can be effectively tracked in the process of production, the vehicle Bluetooth hands-free devices need to download such key parameters as Bluetooth address, CVC license and base plate numbers, etc. Therefore, it is the aim to search simple and effective methods to download parameters for each vehicle Bluetooth hands-free device, and to control and record the use of parameters. In this paper, by means of Bluetooth Serial Peripheral Interface programmer device, the parallel port is switched to SPI. The first step is to download parameters is simulating SPI with the parallel port. To perform SPI function, operating the parallel port in accordance with the SPI timing. The next step is to achieve SPI data transceiver functions according to the programming parameters of options. Utilizing the new method, downloading parameters is fast and accurate. It fully meets vehicle Bluetooth hands-free devices production requirements. In the production line, it has played a large role.

  19. Performance Analysis and Comparison of Bluetooth Low Energy with IEEE 802.15.4 and SimpliciTI

    Directory of Open Access Journals (Sweden)

    Jouni Tervonen

    2013-08-01

    Full Text Available Bluetooth Low Energy (BLE is a recently developed energy-efficient short-range wireless communication protocol. In this paper, we discuss and compare the maximum peer-to-peer throughput, the minimum frame turnaround time, and the energy consumption for three protocols, namely BLE, IEEE 802.15.4 and SimpliciTI. The specifics and the main contributions are the results both of the theoretical analysis and of the empirical measurements, which were executed using the commercially available hardware transceivers and software stacks. The presented results reveal the protocols’ capabilities and enable one to estimate the feasibility of using these technologies for particular applications. Based on the presented results, we draw conclusions regarding the feasibility and the most suitable application scenarios of the BLE technology.

  20. Inter-Technology Backscatter: Towards Internet Connectivity for Implanted Devices

    OpenAIRE

    Iyer, Vikram; Talla, Vamsi; Kellogg, Bryce; Gollakota, Shyamnath; Smith, Joshua R.

    2016-01-01

    We introduce inter-technology backscatter, a novel approach that transforms wireless transmissions from one technology to another, on the air. Specifically, we show for the first time that Bluetooth transmissions can be used to create Wi-Fi and ZigBee-compatible signals using backscatter communication. Since Bluetooth, Wi-Fi and ZigBee radios are widely available, this approach enables a backscatter design that works using only commodity devices. We build prototype backscatter hardware using ...

  1. A Power-Efficient LC Quadrature VCO for RFID, Zigbee and Bluetooth Standards

    Directory of Open Access Journals (Sweden)

    TORKZADEH, P.

    2009-10-01

    Full Text Available A multi-band CMOS LC Quadrature Voltage Control Oscillator (QVCO with minimum power consumption is developed to meet the phase noise and frequency band requirements of RFID, Zigbee and Bluetooth standards. To accomplish the multi-band receiving architecture at low power consumption, current switching technique with optimized cross-coupled transistor sizes has been used. A comprehensive analysis of small signal model for complementary architecture including transistor noise sources and their effects on output phase noise amount has been discussed. Using extracted small signal model, coupled and coupling transistor sizes for minimum power consumption and the least achievable phase noise have been optimized. Designed QVCO has been implemented using TSMC 0.18um CMOS technology operating at 1.8V supply voltage. Proposed QVCO generates two separated frequency bands of 1.65-1.85GHz and 2.4-2.5GHz with phase noise of -125dBc/Hz at frequency offset of 3MHz. The total current drawn by QVCO is 7.5mA which makes the power consumption as low as 13.5mW.

  2. PENGENDALIAN LENGAN ROBOT PNEUMATIK PEMINDAH PLAT MELALUI BLUETOOTH DENGAN HANDPHONE BERTEKNOLOGI JAVA

    Directory of Open Access Journals (Sweden)

    Sumardi Sumardi

    2009-06-01

    Full Text Available Bluetooth merupakan teknologi yang berkembang sebagai jawaban atas kebutuhan komunikasi antar perlengkapan elektronik agar dapat saling mempertukarkan data dalam jarak yang terbatas menggunakan gelombang radio dengan frekuensi tertentu. Salah satu implementasi bluetooth yang populer adalah pada peralatan ponsel. Bluetooth adalah teknologi radio jarak pendek yang memberikan kemudahan konektivitas bagi peralatan-peralatan nirkabel. Teleoperasi atau telekontrol merupakan kemampuan untuk melakukan pengendalian dan pengoperasian suatu peralatan dari jarak jauh tanpa operator manusia. Sistem seperti ini sangat diperlukan untuk keperluan sistem pengendalian yang mengandung resiko besar bagi operator manusia, seperti operasi dalam reaktor nuklir. Sistem teleoperasi dibangun sebagai solusi yang dapat digunakan untuk menjamin keselamatan bagioperator manusia tanpa mengurangi keberhasilan dari proses yang berlangsung. Dengan memanfaatkan handphone yang mempunyai fasilitas Bluetooth dimungkinkan membuat suatu jaringan lokal untuk membangun suatu sistem teleoperasi dengan biaya murah dan efisien.Java yang merupakan bahasa pemrograman yang berorientasi objek mempunyai 3 lingkungan kerja baikuntuk aplikasi Desktop (Java 2 Standard Edition, aplikasi Enterprise (Java 2 Enterprise Edition maupun aplikasi untuk device dengan memori minimal (Java 2 Micro Edition. Serta API java yaitu JSR-82 yang mendukungpemrograman dengan Bluetooth dapat dikembangkan untuk membangun suatu sistem teleoperasi dengan media perantara bluetooth. Aplikasi dapat dibuat dengan midlet Java yang diinistal pada handphone yang mendukung teknologi Java serta adanya perangkat bluetooth.Sistem teleoperasi yang dibuat dapat berfungsi dengan baik untuk melakukan pengendalian robot pneumatik menggunakan PLC dengan keberhasilan mengirimkan perintah – perintah ke server dan meneruskannya ke PLC dan dapat mengolah data umpan balik dari PLC menjadi tampilan visualisasi animasi gerakan robot

  3. 基于太阳能智能蓝牙小车的设计%Solar Smart Bluetooth Car-based Design

    Institute of Scientific and Technical Information of China (English)

    孔繁云川; 王娜

    2014-01-01

    伴随着物联网的兴起,Android系统平台以其独有的开放性优势正在为我们提供更多优质便捷的技术成果。该次设计是基于安卓手机蓝牙控制的太阳能智能小车设计,借助手机平台和蓝牙技术,设计和实现了一种无线遥控太阳能供电小车新的解决方案。本次设计是以手机控制平台、蓝牙模块、太阳能供电板、电机驱动模块等硬件模块所组成的遥控小车。实现了小车的前进、后退、前左转弯、前右转弯、后左转弯、后右转弯等实时得控制功能。%With the rise of the Internet of Things, Android platform with its unique advantage of being open to provide more quality and convenient technological achievements for us. This design is based on the solar car design intelligent control Android phone Bluetooth, with mobile platforms and Bluetooth technology, design and implementation of a wireless remote control solar powered car new solutions. The design is based on remote control car phone control platform, Bluetooth module, solar power panels, motor drive module consisting of hardware modules. Realized the car forward, backward, left turn before the front right turn, left turn after, turn right after the other real-time control functions too.

  4. Tekniken bakom Bluetooth Low Energy och dess användningsområden

    OpenAIRE

    Laine, Rasmus

    2013-01-01

    Arbetet behandlar Bluetooth Low Energy, som är en ny egenskap i Bluetooth 4.0. Arbetets syfte att kartlägga hur den nya lågenergitekniken fungerar och få en bild på dess användningsområden. Bluetooth har varit i över 10 år påmarknaden har fått en stark marknad inom telefonbranschen. Den har visat sig passa bra för överföring av filer samt strömning av video och ljud. Under åren har det dock dykt upp en efterfrågan på små apparater som skulle ha sensorer och låg energiförbrukning. Bluetoo...

  5. 短距离无线数字通信新技术--Bluetooth

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    @@ 什么是Bluetooth? Bluetooth是一种近距离无线数字通信技术.1998年5月,爱立信、IBM、Intel、诺基亚、小芝等5家公司开始进行近距离无线通信技术的标准化活动,其目标是提供低成本、短距离的无线传输应用,五家公司宣布成立一个Bluetooth特殊兴趣组(Bluetooth SIG),以共同推动该技术的发展,并使Bluetooth成为未来的无线通信标准.目前,Bluetooth SIG的成员已经达2491个(2001年7月8日),并且每天都在不断增加.

  6. Measuring Soil Moisture using the Signal Strength of Buried Bluetooth Devices.

    Science.gov (United States)

    Hut, R.; Campbell, C. S.

    2015-12-01

    A low power bluetooth Low Energy (BLE) device is burried 20cm into the soil and a smartphone is placed on top of the soil to test if bluetooth signal strength can be related to soil moisture. The smartphone continuesly records and stores bluetooth signal strength of the device. The soil is artifcially wetted and drained. Results show a relation between BLE signal strength and soil moisture that could be used to measure soil moisture using these off-the-shelf consumer electronics. This opens the possibily to develop sensors that can be buried into the soil, possibly below the plow-line. These sensors can measure local parameters such as electric conductivity, ph, pressure, etc. Readings would be uploaded to a device on the surface using BLE. The signal strength of this BLE would be an (additional) measurement of soil moisture.

  7. A distributed admission approach based on marking mechanism over Bluetooth best-effort network

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun

    2002-01-01

    The end-to-end Quality of Service delivered in Bluetooth networks depends on a large number of parameters at different levels, e.g. link capacity, packet delays, etc, which are requested in certain patterns and controlled by various algorithms. In this paper, a method of adaptive distributed...... admission with end-to-end Quality of Service (QoS) provisions based marking information for real time and non real time traffics in Bluetooth networks is highlighted, its mathematical background is analyzed and a simulation with bursty traffic sources, Interrupted Bernoulli Process (IBP), is carried out....... The simulation results show that the performance of Bluetooth network is improved when applying the distributed admission method....

  8. Novel Dual-band Slot Antenna Design for Bluetooth and UWB Applications

    Science.gov (United States)

    Huang, Hai-Yan; Shao, Wei; Wang, Bing-Zhong; Ma, Xiao-Liang

    2014-05-01

    A novel technique to introduce an additional low frequency band to compact ultra wideband (UWB) slot antennas is proposed in this paper. To get an additional Bluetooth band, a parasitic strip is mounted on the back side of the slot edge. Because of the interaction of the strip and the slot edge, the Bluetooth band can be obtained while a notch band between the Bluetooth band and UWB band also appears. Two types of feeding, coplanar waveguide and microstrip line, are investigated. The proposed antennas are both fabricated on a low-cost FR4 substrate and have compact size (24 mm × 28 mm × 1 mm). The good agreement between measured and simulated results verifies our design.

  9. Note: Methodology for the analysis of Bluetooth gateways in an implemented scatternet

    Science.gov (United States)

    Etxaniz, J.; Monje, P. M.; Aranguren, G.

    2014-03-01

    This Note introduces a novel methodology to analyze the time performance of Bluetooth gateways in multi-hop networks, known as scatternets. The methodology is focused on distinguishing between the processing time and the time that each communication between nodes takes along an implemented scatternet. This technique is not only valid for Bluetooth networks but also for other wireless networks that offer access to their middleware in order to include beacons in the operation of the nodes. We show in this Note the results of the tests carried out on a Bluetooth scatternet in order to highlight the reliability and effectiveness of the methodology. The results also validate this technique showing convergence in the results when subtracting the time for the beacons from the delay measurements.

  10. 蓝牙程控微电极拉制仪的研制%Horizontal Microelectrode Puller Based on Bluetooth

    Institute of Scientific and Technical Information of China (English)

    刘向明; 王威; 李享元

    2012-01-01

    This paper presents a novel horizontal microelectrode puller based on Bluetooth technology, discusses the mechanical structure and hardware circuit for the micropipette puller, and the control software was developed by using LabVIEW platform. The software interface was dedicated to set the microelectrode parameters and indicate the pulling progress on PC. The BlueCore4 Bluetooth module transmitted the setting parameters to a microcontroller in the puller. The experiment results showed that the microelectrodes produced by the instrument were featured with good tip profile and low serial impedance for patch clamp experimental requirements. This puller is easy to operate and set pulling parameter, produce two symmetrical electrodes in each one progress. It's a good tool for electroDhvsioloav experiments.%研制了一种基于蓝牙的二步式水平微电极拉制仪,给出了系统的机械结构和硬件电路设计方案.采用LabVIEW编写了拉制参数设置和拉制进度显示的PC软件界面,利用BlueCore4蓝牙模块实现了拉制过程中的数据无线传输、参数保存功能.测试结果显示:系统拉制出来的玻璃电极在外形、尖端形状以及电极阻抗都已达到膜片钳实验要求.该仪器操作简单,拉制参数设置和保存容易,一次拉制出两根对称电极,为电生理、膜片钳以及其它神经生物实验提供了一个可靠的工具.

  11. 基于蓝牙技术的手机投票系统%Mobile Voting System Based on Bluetooth

    Institute of Scientific and Technical Information of China (English)

    李琳; 郑晓静

    2013-01-01

    This report describes how to develop a mobile voting system based on Bluetooth technology. The voting system runs on PC platform, which is treated as server;and cellular phones, which are treated as client. The work has been focused mainly on Bluetooth protocol used in exchanging data between server and client. During the development, Netbeans IDE with mobility pack is used to create J2ME application. Sun wireless toolkit 2.0 is the best option as build tools and device emulator. A detailed explanation on architecture of this project is discussed including the system structure, communication handler, question syntax, etc. The demonstration platform for this voting system was Compaq nx8220 laptop, Sony-Ericsson W810i and Nokia 6630 mo?bile device.%该文描述了一种基于蓝牙技术的手机投票系统设计方案.整个投票系统分为服务器端和客户端并利用蓝牙进行数据传输.手机作为客户端用于发送投票信息;计算机作为服务器端用于接收客户端发送的投票结果.该文详细介绍了整个系统的设计结构及实现方法,以NetBeans IDE作为JAVA开发环境.该投票系统的测试平台是Compaq nx8220计算机, Sony-Ericsson W810i手机和Nokia 6630手机.

  12. Bluetooth Based Chaos Synchronization Using Particle Swarm Optimization and Its Applications to Image Encryption

    Science.gov (United States)

    Yau, Her-Terng; Hung, Tzu-Hsiang; Hsieh, Chia-Chun

    2012-01-01

    This study used the complex dynamic characteristics of chaotic systems and Bluetooth to explore the topic of wireless chaotic communication secrecy and develop a communication security system. The PID controller for chaos synchronization control was applied, and the optimum parameters of this PID controller were obtained using a Particle Swarm Optimization (PSO) algorithm. Bluetooth was used to realize wireless transmissions, and a chaotic wireless communication security system was developed in the design concept of a chaotic communication security system. The experimental results show that this scheme can be used successfully in image encryption. PMID:22969355

  13. Crowds, Bluetooth and Rock’n’Roll: Understanding Music Festival Participant Behavior

    DEFF Research Database (Denmark)

    Larsen, Jakob Eg; Sapiezynski, Piotr; Stopczynski, Arkadiusz;

    2013-01-01

    In this paper we present a study of sensing and analyzing an offline social network of participants at a large-scale music festival (8 days, 130,000+ participants). We place 33 fixed-location Bluetooth scanners in strategic spots around the festival area to discover Bluetooth-enabled mobile phones...... an Infinite Relational Model (IRM) in order to recover the structure of the social network related to participants' music preferences. The obtained structure in the form of clusters of concerts and participants is then interpreted using meta-information about music genres, band origins, stages, and dates...

  14. Bluetooth Based Chaos Synchronization Using Particle Swarm Optimization and Its Applications to Image Encryption

    Directory of Open Access Journals (Sweden)

    Tzu-Hsiang Hung

    2012-06-01

    Full Text Available This study used the complex dynamic characteristics of chaotic systems and Bluetooth to explore the topic of wireless chaotic communication secrecy and develop a communication security system. The PID controller for chaos synchronization control was applied, and the optimum parameters of this PID controller were obtained using a Particle Swarm Optimization (PSO algorithm. Bluetooth was used to realize wireless transmissions, and a chaotic wireless communication security system was developed in the design concept of a chaotic communication security system. The experimental results show that this scheme can be used successfully in image encryption.

  15. Bluetooth and Namo-ST%"蓝牙"与纳米的故事

    Institute of Scientific and Technical Information of China (English)

    小兵

    2001-01-01

    @@ 蓝牙 "蓝牙"(Bluetooth),是中世纪北欧的一个海盗王的绰号.1998年5月,爱立信、IBM、Intel、诺基亚、东芝等5家公司联合制定近距离无线通信技术标准,该标准被以"蓝牙(Bluetooth)"命名.同时,这五家公司成立"蓝牙特殊兴趣组".

  16. The Bluetooth Based LED Control For Arduino Test Platform By Using Mobile APP

    Directory of Open Access Journals (Sweden)

    Yi-Jen Mon

    2015-06-01

    Full Text Available Abstract The Bluetooth is a commonly known convenient and famous communication protocol. In this paper it is used to control LED mounted on Arduino test platform by using the APP of mobile phone. At first the control program is completed by Arduino development software environment then the Android APP is installed in mobile phone. Finally by using the Bluetooth of mobile phone the test platform will be connected. The LED can be controlled by APP of mobile phone. The experiment results are demonstrated the effective performance.

  17. 蓝牙音频网关的实现%Realization of Bluetooth audio gateway

    Institute of Scientific and Technical Information of China (English)

    刘建添

    2013-01-01

      在CSR公司的蓝牙芯片BC352239A上,利用Bluelab3.52开发软件,实现了音频网关(Audio Gateway),可以将普通音频接口转成蓝牙通信。%  In the CSR Bluetooth chip BC352239A, using Bluelab3.52 to develop software, realize the audio gateway (Audio Gateway), can be converted into ordinary audio interface bluetooth communication.

  18. Fast and Low-Complexity Simulations of the Inquiry Time in Bluetooth

    DEFF Research Database (Denmark)

    Figueiras, Joao; Schwefel, Hans-Peter

    2006-01-01

    The timing behavior of the Inquiry Procedure in Bluetooth is relevant for several important functionalities, in particular topology formation and localization. The detailed Inquiry procedure is rather complex and simulation models may become inefficient if they implement the full detailed specifi...

  19. Channel selection requirements for Bluetooth receivers using a simple demodulation algorithm

    NARCIS (Netherlands)

    Schiphorst, Roel; Hoeksema, Fokke; Slump, Kees

    2001-01-01

    In our Software Defined Radio (SDR) project we combine two different types of standards, Bluetooth and HiperLAN/2, on one common hardware platform. SDR system research aims at the design, implementation and deployment of flexible radio systems that are reprogrammable and re-configurable by software.

  20. Optimizing Neighbor Discovery for Ad hoc Networks based on the Bluetooth PAN Profile

    DEFF Research Database (Denmark)

    Kuijpers, Gerben; Nielsen, Thomas Toftegaard; Prasad, Ramjee

    2002-01-01

    . This paper introduces a neighbor discovery mechanism that utilizes the resources in the Bluetooth PAN profile more efficient. The performance of the new mechanism is investigated using a IPv6 network simulator and compared with emulated broadcasting. It is shown that the signaling overhead can...

  1. Smartphone-Based Indoor Localization with Bluetooth Low Energy Beacons

    Directory of Open Access Journals (Sweden)

    Yuan Zhuang

    2016-04-01

    Full Text Available Indoor wireless localization using Bluetooth Low Energy (BLE beacons has attracted considerable attention after the release of the BLE protocol. In this paper, we propose an algorithm that uses the combination of channel-separate polynomial regression model (PRM, channel-separate fingerprinting (FP, outlier detection and extended Kalman filtering (EKF for smartphone-based indoor localization with BLE beacons. The proposed algorithm uses FP and PRM to estimate the target’s location and the distances between the target and BLE beacons respectively. We compare the performance of distance estimation that uses separate PRM for three advertisement channels (i.e., the separate strategy with that use an aggregate PRM generated through the combination of information from all channels (i.e., the aggregate strategy. The performance of FP-based location estimation results of the separate strategy and the aggregate strategy are also compared. It was found that the separate strategy can provide higher accuracy; thus, it is preferred to adopt PRM and FP for each BLE advertisement channel separately. Furthermore, to enhance the robustness of the algorithm, a two-level outlier detection mechanism is designed. Distance and location estimates obtained from PRM and FP are passed to the first outlier detection to generate improved distance estimates for the EKF. After the EKF process, the second outlier detection algorithm based on statistical testing is further performed to remove the outliers. The proposed algorithm was evaluated by various field experiments. Results show that the proposed algorithm achieved the accuracy of <2.56 m at 90% of the time with dense deployment of BLE beacons (1 beacon per 9 m, which performs 35.82% better than <3.99 m from the Propagation Model (PM + EKF algorithm and 15.77% more accurate than <3.04 m from the FP + EKF algorithm. With sparse deployment (1 beacon per 18 m, the proposed algorithm achieves the accuracies of <3.88 m at

  2. Smartphone-Based Indoor Localization with Bluetooth Low Energy Beacons.

    Science.gov (United States)

    Zhuang, Yuan; Yang, Jun; Li, You; Qi, Longning; El-Sheimy, Naser

    2016-01-01

    Indoor wireless localization using Bluetooth Low Energy (BLE) beacons has attracted considerable attention after the release of the BLE protocol. In this paper, we propose an algorithm that uses the combination of channel-separate polynomial regression model (PRM), channel-separate fingerprinting (FP), outlier detection and extended Kalman filtering (EKF) for smartphone-based indoor localization with BLE beacons. The proposed algorithm uses FP and PRM to estimate the target's location and the distances between the target and BLE beacons respectively. We compare the performance of distance estimation that uses separate PRM for three advertisement channels (i.e., the separate strategy) with that use an aggregate PRM generated through the combination of information from all channels (i.e., the aggregate strategy). The performance of FP-based location estimation results of the separate strategy and the aggregate strategy are also compared. It was found that the separate strategy can provide higher accuracy; thus, it is preferred to adopt PRM and FP for each BLE advertisement channel separately. Furthermore, to enhance the robustness of the algorithm, a two-level outlier detection mechanism is designed. Distance and location estimates obtained from PRM and FP are passed to the first outlier detection to generate improved distance estimates for the EKF. After the EKF process, the second outlier detection algorithm based on statistical testing is further performed to remove the outliers. The proposed algorithm was evaluated by various field experiments. Results show that the proposed algorithm achieved the accuracy of <2.56 m at 90% of the time with dense deployment of BLE beacons (1 beacon per 9 m), which performs 35.82% better than <3.99 m from the Propagation Model (PM) + EKF algorithm and 15.77% more accurate than <3.04 m from the FP + EKF algorithm. With sparse deployment (1 beacon per 18 m), the proposed algorithm achieves the accuracies of <3.88 m at 90% of the

  3. Design of external sensors board based on Bluetooth interface of smart phones for structural health monitoring system

    Science.gov (United States)

    Yu, Yan; Zhou, Yaping; Zhao, Xuefeng; Li, Dongsheng; Ou, Jinping

    2016-04-01

    As an important part of new information technology, the Internet of Things(IoT) is based on intelligent perception, recognition technology, ubiquitous computing, ubiquitous network integration, and it is known as the third wave of the development of information industry in the world after the computer and the Internet. And Smart Phones are the general term for a class of mobile phones with a separate operating system and operational memory, in which the third-party service programs including software, games, navigation, et.al, can be installed. Smart Phones, with not only sensors but also actuators, are widely used in the IoT world. As the current hot issues in the engineering area, Structural health monitoring (SHM) is also facing new problems about design ideas in the IoT environment. The development of IoT, wireless sensor network and mobile communication technology, provides a good technical platform for SHM. Based on these facts, this paper introduces a kind of new idea for Structural Health Monitoring using Smart Phones Technique. The system is described in detail, and the external sensor board based on Bluetooth interface is designed, the test based on Smart Phones is finished to validate the implementation and feasibility. The research is preliminary and more tests need to be carried out before it can be of practical use.

  4. Design and Implementation of Remote Control Toy Car Using Bluetooth%基于蓝牙技术遥控小车的设计与实现

    Institute of Scientific and Technical Information of China (English)

    周瑛; 杨盛国; 黄凌云

    2012-01-01

    Based on a smart phone platform,a new solution for a wireless remote control car using Bluetooth technology was designed and realized.The remote control toy car is composed of controlling module in cell phones,Bluetooth communication module,and electrical motor driver module.It has real-time controlling functions such as moving forward and backward,making front left turn,front right turn,back left turn and back right turn.It is a new approach to design remote control toy car and also valuable for remote control in smart home design.%基于手机平台,借助于蓝牙技术,设计和实现了一种无线遥控小车新的解决方案。设计以手机控制平台、蓝牙通讯模块、电机驱动模块等硬件模块组成的遥控小车。实现小车的前进、后退、前左转弯、前右转弯、后左转弯、后右转弯等实时控制功能。为遥控玩具小车的设计提出了一种新的思路,同时可以为将来智能家居的遥控设计提供一定的参考意义。

  5. Participatory Bluetooth Sensing: A Method for Acquiring Spatio-Temporal Data about Participant Mobility and Interactions at Large Scale Events

    DEFF Research Database (Denmark)

    Stopczynski, Arkadiusz; Larsen, Jakob Eg; Jørgensen, Sune Lehmann;

    2013-01-01

    Acquisition of data to capture human mobility and interactions during large-scale events is a challenging task. In this paper we discuss a mobile sensing method for mapping the mobility of crowds at large scale events using a participatory Bluetooth sensing approach. This non-invasive technique...... for collecting spatio-temporal data about participant mobility and social interactions uses the capabilities of Bluetooth capable smartphones carried by participants. As a proof-of-concept we present a field study with deployment of the method in a large music festival with 130 000 participants where a small...... subset of participants installed Bluetooth sensing apps on their personal smartphones. Our software module uses location and Bluetooth scans to utilize smartphones as provisional scanners that are present with higher frequency in regions with high density of participants. We discuss the initial results...

  6. Location-aware sign-on and key exchange using attribute-based encryption and Bluetooth beacons

    OpenAIRE

    Portnoi, Marcos; Shen, Chien-Chung

    2015-01-01

    This work presents a mobile sign-on scheme, which utilizes Bluetooth Low Energy beacons for location awareness and Attribute-Based Encryption for expressive, broadcast-style key exchange. Bluetooth Low Energy beacons broadcast encrypted messages with encoded access policies. Within range of the beacons, a user with appropriate attributes is able to decrypt the broadcast message and obtain parameters that allow the user to perform a short or simplified login. The effect is a "traveling" sign-o...

  7. Control study of vehicle multimedia system based on bluetooth%车载多媒体Bluetooth控制研究

    Institute of Scientific and Technical Information of China (English)

    梁玉红

    2008-01-01

    讨论Bluetooth(蓝牙)多媒体(音频/视频)控制的应用模型,描述了由单片机89C51、Bluetooth 模块ROK 101007等组成的车载多媒体Bluetooth控制系统的设计与控制原理,介绍了车载多媒体Bluetooth控制的应用开发实例.

  8. Compact multi-band novel-shaped planar monopole antenna for DCS, Bluetooth, and ultra-wide-band applications

    OpenAIRE

    Vijay K. Sambhe; Rahul N. Awale; Abhay Wagh

    2016-01-01

    In this study, simple and compact novel-shape planar monopole antenna for multi-band operation such as DCS, Bluetooth, and ultra-wide-band (UWB) is proposed. Proposed antenna comprises of circular ring with extended rectangular monopole antenna in one of the arm of the circular ring and inverted L-shape monopole antenna at the centre of the structure is placed to generate multiple resonances at different frequencies. In this structure, Bluetooth frequency band generates due to extended rectan...

  9. Design and Implementation of Anti Lost Bluetooth Low Energy Mobile Device for Mobile Phone

    Directory of Open Access Journals (Sweden)

    Prajakta S. Chavan

    2014-05-01

    Full Text Available Today mobile phone like smart phone, tablet are very costly ranging from 300 USD to 600 USD , to avoid them to get forget at any social places, we can have mobile device(gadget which will warn us (beepthis device is left back .To make commercialize product which will act as mobile phone watchmen, with specification and characteristic like smallest device foot print, comfortable to carry along, ultra low power consumption to increase battery life and to avoid frequent charging, ultra low Sleep currents and efficient performance. As per this specification we will develop a mobile device (gadget which will connect to mobile phone by Bluetooth connectivity if this gadget will go beyond 4 to 6 meters gadget will beep loud when Bluetooth connectivity breaks.

  10. Bluetooth Low Energy som trådlös standard för hemautomation

    OpenAIRE

    Englund, Albin; Suther, Magnus

    2013-01-01

    Allmänheten har en stor efterfrågan av produkter inom området för hemautomation. Den senaste bluetoothstandarden Bluetooth Low Energy skapar nya möjligheter för intressanta produkter som underlättar vardagen. Lösningar som IR och Wi-Fi ger inte de förutsättningar som krävs för att på ett energisnålt och praktiskt sätt erbjuda sådana produkter, något som Bluetooth Low Energy gör. I denna rapport diskuteras standarden i syfte att redogöra för hur den kan användas för att automatisera ett hem. F...

  11. Bluetooth 10 Year Anniversary%蓝牙10周年

    Institute of Scientific and Technical Information of China (English)

    Nowhere

    2008-01-01

    1998年,爱立信公司开发出了一种短距离无线传输技术,爱立信将其命名为蓝牙。10年后的今天,蓝牙取得了令人意想不到的成功——Bluetooth SIG(蓝牙特别兴趣小组)拥有超过10000名成员,蓝牙设备已超过15亿个。1月8日在美国拉斯维加斯取行的CES2008上,Bluetooth SIG举行了Bluetooth十周年庆典。

  12. Using Bluetooth to Implement a Pervasive Indoor Positioning System with Minimal Requirements at the Application Level

    Directory of Open Access Journals (Sweden)

    Mario Muñoz-Organero

    2012-01-01

    Full Text Available Different systems have been proposed to estimate the position of a mobile device using Bluetooth based on metrics such as the Radio Signal Strength Indicator (RSSI, the received Bit Error Rate (BER or the Cellular Signal Quality (CSQ. These systems try to improve the estimation accuracy of the basic and straightforward triangulation method among discovered BT reference base stations at the cost of requiring that the positioning application has access to low level hardware related data (provided by the Host Controller Interface and obtaining information which is in many cases hardware, and therefore device, dependent. In this paper we design, simulate, implement and validate a Bluetooth positioning system that only requires the ability to handle SDP service records at the application level, achieving mean errors around 1 to 3 meters, improving the basic triangulation method among discovered BT reference base stations.

  13. Contextual grouping: discovering real-life interaction types from longitudinal Bluetooth data

    OpenAIRE

    Do, Trinh-Minh-Tri; Gatica-Perez, Daniel

    2011-01-01

    By exploiting built-in sensors, mobile smartphone have become attractive options for large-scale sensing of human behavior as well as social interaction. In this paper, we present a new probabilistic model to analyze longitudinal dynamic social networks created by the physical proximity of people sensed continuously by the phone Bluetooth sensors. A new probabilistic model is proposed in order to jointly infer emergent grouping modes of the community together with their temporal context. We...

  14. Evaluation of bluetooth low energy for drone-led opportunistic sensor data collection

    OpenAIRE

    Aguilar Romero, Sergio

    2016-01-01

    This document presents a study of Bluetooth Low Energy (BLE) in opportunistic data collection scenarios. An overview of BLE protocol stack is examined making emphasis in the Link Layer states and roles, PDU and connection and timing. An introduction to the BLE121LR module is reviewed with its general characteristics such as current consumption and range. A brief description of the software tools that Bluegiga provides to configure the module is shown. Four projects were build; one for the bro...

  15. Wireless Cycling Posture Monitoring Based on Smartphones and Bluetooth Low Energy

    OpenAIRE

    Antonio F. Maio; Jose A. Afonso

    2015-01-01

    This work presents the implementation of a wireless network based on Bluetooth Low Energy (BLE) which enables the integration of multiple sensor nodes into a smartphone-based system in order to monitor the posture of cyclists. The developed posture monitoring system obtains the orientation in space of each body segment in which the sensor nodes are placed and calculates the trunk angle, the knee angle and the angle of inclination of the road. Raw sensor data are collected periodically from ac...

  16. Modeling the maximum throughput of bluetooth low energy in an error-prone link

    OpenAIRE

    Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep

    2011-01-01

    We present an analytical model for the maximum throughput of Bluetooth Low Energy (BLE), considering the presence of uncorrelated bit errors and the impact of a key BLE parameter that defines the time between the start of two consecutive connection events. The derived analysis models the generic application of master-to-slave unidirectional data transmission, which also forms an upper bound for bidirectional data transmission throughput. Simulation results show that our ...

  17. Development of wireless sensor network using Bluetooth Low Energy (BLE) for construction noise monitoring

    OpenAIRE

    Hughes, Josie; Yan, Jize; Soga, Kenichi

    2015-01-01

    In this paper the development of a Wireless Sensor Network (WSN) for construction noise identification and sound locating is investigated using the novel application of Bluetooth Low Energy (BLE). Three WSNs using different system-on-chip (SoC) devices and networking protocols have been prototyped using a Raspberry Pi as the gateway in the network. The functionality of the system has been demonstrated with data logging experiments and comparisons has been made between the different WSN syst...

  18. Design and Optimization of Integrated Bluetooth and UWB Antenna With Dual Band-Notched Functions

    Directory of Open Access Journals (Sweden)

    Su Sandar Thwin

    2012-08-01

    Full Text Available A compact microstrip-fed printed planar integrated Bluetooth and ultra wideband (UWB monopole antenna with dual band-notched characteristics in the 3.5 GHz WiMAX and 5.2/5.8GHz WLAN band is presented. The proposed antenna design consists of the semicircular ring patch and partial ground plane. The extra band (2.33-2.5GHzfor Bluetooth is obtained by adding the T-shaped strip at the top of the patch. Additionally, two L-shaped arc slots in patch and two U-shaped circular slots in partial groundplane are etched to reject the WiMAX and WLAN bands. The numerical and experimental results show that the proposed antenna has an impedance bandwidth of VSWR ≤ 2 from 2.33 GHz to 2.5 GHz for Bluetooth band and 3.04 GHz to 10.8 GHz for UWB band except the notch band frequencies 3.3- 4.1 GHz for WiMAX and 5 – 5.9 GHz for WLAN band.

  19. ТЕХНОЛОГИЯ BLUETOOTH

    OpenAIRE

    Крюков, Михаил

    2002-01-01

    Первое упоминание о Bluetooth появилось ввесной 1998 года, а в настоящее время консорциум Bluetooth Special Interest Group (Bluetooth SIG) насчитывает свыше 1500 участников, в их числе такие всемирно известные компании как Ericsson, IBM, Intel, Microsoft, Motorola, Nokia, Toshiba, Samsung и многие другие.

  20. A Self-organizing Location and Mobility-Aware Route Optimization Protocol for Bluetooth Wireless

    Directory of Open Access Journals (Sweden)

    Sheikh Tahir Bakhsh

    2016-06-01

    Full Text Available Bluetooth allows multi-hop ad-hoc networks that contain multiple interconnected piconets in a common area to form a scatternet. Routing is one of the technical issues in a scatternet because nodes can arrive and leave at arbitrary times; hence node mobility has a serious impact on network performance. Bluetooth network is built in an ad-hoc fashion, therefore, a fully connected network does not guarantee. Moreover, a partially connected network may not find the shortest route between source and destination. In this paper, a new Self-organizing Location and Mobility-aware Route Optimization (LMRO protocol is proposed for Bluetooth scatternet, which is based on node mobility and location. The proposed protocol considered the shortest route ahead of the source and destination nodes through nodes location information. In addition, proposed protocol guarantees network connectivity through executing Self-organizing procedure for the damaged route by considering signal strength. The proposed LMRO protocol predicts node mobility through the signal strength and activates an alternate link before the main link breaks. Simulation results show that the LMRO protocol has reduced the average hop count by 20%-50% and increased network throughput by 30%-40% compared to existing protocols.

  1. Design and implementation of a bluetooth-based band-aid pulse rate sensor

    Science.gov (United States)

    Kumar, Prashanth S.; Oh, Sechang; Rai, Pratyush; Kwon, Hyeokjun; Banerjee, Nilanjan; Varadan, Vijay K.

    2011-04-01

    Remote patient monitoring systems capable of collecting vital patient data such as blood pressure readings, Electrocardiograph (ECG) waveforms, and heart rate can obviate the need for repeated visits to the hospital. Moreover, such systems that continuously monitor the human physiology can provide valuable data to prognosticate the onset of critical health problems. The key to such remote health diagnostics is the design of minimally intrusive, low cost sensors that do not impede a patient's quotidian life but at the same time collect reliable noise free data. To this end, in this paper, we design and implement a Bluetooth-based wireless sensor system with a disposable sensor element and a reusable wireless component that can be worn as a "band-aid". The sensor is a piezoelectric polymer film placed on the wrist in proximity to the radial artery. The band-aid sized sensor allows non-intrusive monitoring of the pulsatile flow of blood in the artery. The sensor, using the Bluetooth module, can communicate with any Bluetooth enabled computer, mobile phone, or PDA. The data collected from the patient can be remotely viewed and analyzed by a physician.

  2. Energy-Delay Tradeoff and Dynamic Sleep Switching for Bluetooth-Like Body-Area Sensor Networks

    CERN Document Server

    Rebeiz, Eric; Molisch, Andreas F

    2012-01-01

    Wireless technology enables novel approaches to healthcare, in particular the remote monitoring of vital signs and other parameters indicative of people's health. This paper considers a system scenario relevant to such applications, where a smart-phone acts as a data-collecting hub, gathering data from a number of wireless-capable body sensors, and relaying them to a healthcare provider host through standard existing cellular networks. Delay of critical data and sensors' energy efficiency are both relevant and conflicting issues. Therefore, it is important to operate the wireless body-area sensor network at some desired point close to the optimal energy-delay tradeoff curve. This tradeoff curve is a function of the employed physical-layer protocol: in particular, it depends on the multiple-access scheme and on the coding and modulation schemes available. In this work, we consider a protocol closely inspired by the widely-used Bluetooth standard. First, we consider the calculation of the minimum energy functio...

  3. Research on mutual Interference characteristics ofZigBee and Bluetooth heterogeneous network%ZigBee/蓝牙异构网络互扰特性研究

    Institute of Scientific and Technical Information of China (English)

    周晨; 范育奇; 张金龙

    2015-01-01

    With the popularity of wireless communications technology in actual life,the mutual interference among different kinds of wireless transmission technologies used in the same frequency band of 2.4 GHz is becoming more and more prominent. The interference between Bluetooth signal and ZigBee signal in multimode heterogeneous system is analyzed in this paper. A sim⁃ple mathematical model of ZigBee transmission network based on Markov chain concept is designed. The ZigBee device’s abnor⁃mal conditions in the data throughout and CCA (clear channel assessment) caused by the interference of Bluetooth heteroge⁃neous signals with same frequency are analyzed by means of the mathematical model.%随着无线通信技术在实际生活中的普及,同处于2.4 GHz ISM开放频段上的不同种无线传输技术间的相互干扰问题变得日益突出。在此对多模异构系统中蓝牙信号与ZigBee信号间的干扰现象进行分析,并设计出基于马尔科夫链概念(Markov chain concept)的ZigBee传输网络的简易数学模型。通过数学模型来分析ZigBee设备受蓝牙同频异种信号干扰而导致的数据吞吐量和空闲信道评估(CCA)异常的情况。

  4. Constructing energy efficient bluetooth scatternets for wireless sensor networks

    OpenAIRE

    Saginbekov, Sain

    2004-01-01

    Cataloged from PDF version of article. The improvements in the area of wireless communication and micro-sensor technology have made the deployment of thousands, even millions, of low cost and low power sensor nodes in a region of interest a reality. After deploying sensor nodes in a target region of interest, which can be inaccessible by people, people can collect useful data from the region remotely. The sensor nodes use wireless communication and can collaborate with each ...

  5. EMI and BER/PER Analysis of Wi-Fi and Bluetooth Communication for CRIP Platform

    DEFF Research Database (Denmark)

    Ravelo, Blaise; Cabral, Jorge; Wagner, Stefan Rahr;

    This paper is devoted to the characterization of the electromagnetic interference (EMI) effects on wireless communication devices for telemedicine healthcare application. The proposed wireless system operates at the 2.4GHz ISM band with a hardware interface communicating by Wi-Fi and BLE (Bluetooth...... path loss model is investigated for the indoor RF link budget. The quality of the EM coverage and SNR and SINR on QoS with transmitted data BER and PER is analysed. It was examined that the QoS can be degraded according to the distance between the Wi-Fi and BLE device sensitivity and also...

  6. Measurements of complex impedance in microwave high power systems with a new bluetooth integrated circuit.

    Science.gov (United States)

    Roussy, Georges; Dichtel, Bernard; Chaabane, Haykel

    2003-01-01

    By using a new integrated circuit, which is marketed for bluetooth applications, it is possible to simplify the method of measuring the complex impedance, complex reflection coefficient and complex transmission coefficient in an industrial microwave setup. The Analog Devices circuit AD 8302, which measures gain and phase up to 2.7 GHz, operates with variable level input signals and is less sensitive to both amplitude and frequency fluctuations of the industrial magnetrons than are mixers and AM crystal detectors. Therefore, accurate gain and phase measurements can be performed with low stability generators. A mechanical setup with an AD 8302 is described; the calibration procedure and its performance are presented. PMID:15078067

  7. Bluetooth 4.0 Low Energy: la futura solucion inalambrica de bajo consumo

    OpenAIRE

    Morales Pedro, Ricard

    2011-01-01

    En los últimos años el sector de las telecomunicaciones se ha erigido como uno de los mas innovadores de nuestra sociedad, donde la irrupción de nuevos estandares de comunicación inalambrica esta permitiendo ir eliminando la necesidad de los cables de transmisión para conectar dispositivos. Con este proposito nació Bluetooth, una tecnologia que permite transmisiones inalambricas de corto alcance de forma robusta y sencilla, junto con un consumo reducido y un bajo coste. Tras la aparición de B...

  8. Estudo e avaliação dos mecanismos de segurança empregados na tecnologia Bluetooth

    OpenAIRE

    Bruno, Gaspare Giuliano E.; Santos Rocha, Érico

    2006-01-01

    Dentre as tecnologias de redes sem fio voltadas para ambientes adhoc, Bluetooth apresenta-se como a solução com maior desenvolvimento e expansão nos últimos anos. Entretanto, os aspectos de segurança em volta deste padrão não acompanharam este crescimento de maneira adequada, resultando na descoberta e exploração de diversas vulnerabilidades. Partindo deste cenário, este trabalho apresenta duas propostas visando o melhoramento da arquitetura de segurança Bluetooth. Estas propostas abordam res...

  9. 微星推出Bluetooth Hub高度整合性的蓝牙USB Hub

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    微星最新推出结合Bluetooth Dongle与USB Hub的创意产品—Bluetooth Hub。除了可以当成Bluetooth发射器,方便计算机与各项蓝牙外围连接之外,更有USB的集线器功能,串接USB装置,不用再担心主机的USB端口不够用,也不再需要爬上爬下地插拔USB装置。双机合一,方便性不只是加倍而已!

  10. 基于Android系统及混合加密的蓝牙远程控制研究%Research on Bluetooth remote control based on Android system and hybrid encryption

    Institute of Scientific and Technical Information of China (English)

    冯益斌

    2016-01-01

    近年来搭载Android系统的智能可穿戴设备发展迅速,蓝牙通信技术广泛地应用在智能可穿戴设备中,使其能与手机之间相互通信,实现图片、视频、文件等数据传送功能。研究基于Android系统的蓝牙远程控制功能,通过建立的蓝牙连接,实现智能手表与手机之间的数据传送,为了保障数据的安全性,对传送的数据进行了混合加密。应用程序运行在搭载Android系统的GEAR智能手表和手机上,实现了通过GEAR手表实时预览手机摄像头采集到的图像,并且远程控制手机拍摄照片的功能。%With the rapid development of intelligent wearable equipments based on Android system,the Bluetooth commu⁃nication technology is widely used in intelligent wearable equipments,which can communicate with the smart phone to realize data transmission of picture,video and document. The Bluetooth remote control function based on Android system is researched. The Bluetooth connection was established to realize data transmission between smart watch and smart phone. To ensure the data security,the hybrid encryption for the transmitted data is conducted. The application program can run on GEAR smart watch and smart phone based on Android system,which can preview the image acquired from the smart phone camera in real⁃time by GEAR smart watch,and remotely control the pictures taken by smart phone.

  11. Research on Bluetooth remote control based on Android system and hybrid encryption%基于Android系统及混合加密的蓝牙远程控制研究

    Institute of Scientific and Technical Information of China (English)

    冯益斌

    2016-01-01

    With the rapid development of intelligent wearable equipments based on Android system,the Bluetooth commu⁃nication technology is widely used in intelligent wearable equipments,which can communicate with the smart phone to realize data transmission of picture,video and document. The Bluetooth remote control function based on Android system is researched. The Bluetooth connection was established to realize data transmission between smart watch and smart phone. To ensure the data security,the hybrid encryption for the transmitted data is conducted. The application program can run on GEAR smart watch and smart phone based on Android system,which can preview the image acquired from the smart phone camera in real⁃time by GEAR smart watch,and remotely control the pictures taken by smart phone.%近年来搭载Android系统的智能可穿戴设备发展迅速,蓝牙通信技术广泛地应用在智能可穿戴设备中,使其能与手机之间相互通信,实现图片、视频、文件等数据传送功能。研究基于Android系统的蓝牙远程控制功能,通过建立的蓝牙连接,实现智能手表与手机之间的数据传送,为了保障数据的安全性,对传送的数据进行了混合加密。应用程序运行在搭载Android系统的GEAR智能手表和手机上,实现了通过GEAR手表实时预览手机摄像头采集到的图像,并且远程控制手机拍摄照片的功能。

  12. Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link

    Directory of Open Access Journals (Sweden)

    R. Razavi

    2007-01-01

    Full Text Available Bluetooth's default automatic repeat request (ARQ scheme is not suited to video distribution resulting in missed display and decoded deadlines. Adaptive ARQ with active discard of expired packets from the send buffer is an alternative approach. However, even with the addition of cross-layer adaptation to picture-type packet importance, ARQ is not ideal in conditions of a deteriorating RF channel. The paper presents fuzzy logic control of ARQ, based on send buffer fullness and the head-of-line packet's deadline. The advantage of the fuzzy logic approach, which also scales its output according to picture type importance, is that the impact of delay can be directly introduced to the model, causing retransmissions to be reduced compared to all other schemes. The scheme considers both the delay constraints of the video stream and at the same time avoids send buffer overflow. Tests explore a variety of Bluetooth send buffer sizes and channel conditions. For adverse channel conditions and buffer size, the tests show an improvement of at least 4 dB in video quality compared to nonfuzzy schemes. The scheme can be applied to any codec with I-, P-, and (possibly B-slices by inspection of packet headers without the need for encoder intervention.

  13. A Novel Compact UWB Monopole Antenna with Bluetooth and Triple Notch Band

    Science.gov (United States)

    Li, Li; Zhou, Zhi-Li; Hong, Jing-Song

    2013-01-01

    A novel technique to add an extra Bluetooth band and triple notch bands simultaneously to a compact ultra-wideband (UWB) monopole antenna is presented. This scissors-shaped UWB antenna, covering 2.9 GHz-12.5 GHz, is fed by a special microstrip line. To create an extra Bluetooth band centered at 2.45 GHz, an arc-shaped stub is attached to the high concentrated current area right of the feed line and a rectangular slot is etched in the radiation patch. Besides, a notch band for WLAN (5.6 GHz-6.15 GHz) is also obtained. In addition, by connecting two asymmetric stubs to the feed line, two other notch bands in 3.28 GHz-3.8 GHz for WiMAX and 7.1 GHz-7.76 GHz for downlink of X-band satellite communication systems are achieved. The proposed antenna with compact size of 20 mm × 26 mm is fabricated and measured, showing stable antenna gain and good omni-directional radiation patterns in H-plane.

  14. Rancang Bangun Prototipe Monitoring Suhu Tubuh Manusia Berbasis O.S Android Menggunakan Koneksi Bluetooth

    Directory of Open Access Journals (Sweden)

    Moh Fajar Rajasa Fikri

    2013-03-01

    Full Text Available Tanda-tanda vital kesehatan manusia dapat diketahui dari suhu tubuh, pernapasan, tekanan darah, dan denyut nadi. Dalam tugas akhir ini, dirancang sebuah prototipe monitoring suhu tubuh manusia berbasis android menggunakan koneksi bluetooth dengan performansi dalam bentuk jaket yang terdiri dari tiga buah titik pengukuran. Langkah-langkah yang dilakukan untuk merancang sistem pengukuran suhu tubuh adalah dengan mendesain sistem perangkat keras dan perangkat lunak. Sensor yang digunakan adalah IC-LM35 yang tersebar di tiga titik pengukuran. Sensor ini sebagai pendeteksi perubahan suhu tubuh, kemudian hasil perubahan suhu akan dibaca dan diproses pada mikrokontroler ATMega8a-pu. Setelah data terproses, selanjutnya data akan dikirimkan ke perangkat android melalui koneksi bluetooth. Setelah dilakukan pengukuran dan analisis data, dapat diketahui bahwa alat ini memiliki respon dinamis settling time sebesar 5 menit. Jarak maksimum koneksi perangkat adalah 35 meter, dan kemampuan baterai sebesar 9 volt selama 90 menit. Alat ini memiliki nilai eror akurasi sebesar 0.29150C, eror presisi sebesar 0.8°C untuk sensor A (mulut, dan nilai eror akurasi sebesar 0.4149°C, eror presisi sebesar 0.2974°C untuk sensor B (ketiak kanan, dan nilai eror akurasi sebesar 0.3846°C, eror presisi sebesar 0.5956°C untuk sensor C (ketiak kiri

  15. Internetworking technological foundations and applications

    CERN Document Server

    Meinel, Christoph

    2013-01-01

    This book is supposed to serve as a comprehensive and instructive guide through the new world of digital communication. On the physical layer optical and electrical cabling technology are described as well as wireless communication technologies. On the data link layer local area networks (LANs) are introduced together with the most popular LAN technologies such as Ethernet, Token Ring, FDDI, and ATM as well as wireless LAN technologies including IEEE 802.x, Bluetooth, or ZigBee. A wide range of WAN technologies are covered including contemporary high speed technologies like PDH and SDH up to h

  16. Design and implementation of a wireless (Bluetooth) four channel bio-instrumentation amplifier and digital data acquisition device with user-selectable gain, frequency, and driven reference.

    Science.gov (United States)

    Cosmanescu, Alin; Miller, Benjamin; Magno, Terence; Ahmed, Assad; Kremenic, Ian

    2006-01-01

    A portable, multi-purpose Bio-instrumentation Amplifier and Data AcQuisition device (BADAQ) capable of measuring and transmitting EMG and EKG signals wirelessly via Bluetooth is designed and implemented. Common topologies for instrumentation amplifiers and filters are used and realized with commercially available, low-voltage, high precision operational amplifiers. An 8-bit PIC microcontroller performs 10-bit analog-to-digital conversion of the amplified and filtered signals and controls a Bluetooth transceiver capable of wirelessly transmitting the data to any Bluetooth enabled device. Electrical isolation between patient/subject, circuitry, and ancillary equipment is achieved by optocoupling components. The design focuses on simplicity, portability, and affordability.

  17. BY USING BLUETOOTH TECHNOLOGY AUTOMATIC VEHICLE ACCIDENT DETECTION & LOCALIZATION OF AUTOMOBILE

    OpenAIRE

    Nitin Thakre; Nitin Raut; Shyam Dubey; Abdulla Shaikh

    2014-01-01

    Traffic accidents are one of the leading causes of fatalities in the world. An important indicator of survival rates after an accident is the time between the accident and when emergency medical personnel are dispatched to the location. Eliminating the time between when an accident occurs and when first responders are dispatched to the location decreases mortality rates by 6%. We propose an Android based application that location of the vehicle through an positive detectio...

  18. Technology Study of Bluetooth Access LAN%Bluetooth接入LAN技术研究

    Institute of Scientific and Technical Information of China (English)

    黄晓林

    2003-01-01

    本文分析了Bluetooth接入LAN的工作方式、协议软件栈功能并对接入控制机制进行了研究.Bluetooth接入LAN是Bluetooth的重要应用之一,使移动设备实现随时访问LAN或Internet的共享资源.

  19. Bluetooth技术及其应用模型%Bluetooth Technology and its Application Model

    Institute of Scientific and Technical Information of China (English)

    蒋伟荣; 黄晓林

    2002-01-01

    本文介绍Bluetooth的技术要点及系统功能,Bluetooth是近几年发展的以低成本近距离无线链接为基础的一种无线数据与语音通信开放性全球规范,为固定与移动设备通信环境建立一个特别链接.本文描述几个Bluetooth应用模型,并介绍几种Bluetooth实际应用产品.从发展趋势来看Bluetooth必将对人们的生活和工作产生重大影响.

  20. Monitorování neelektrických veličin s využitím Bluetooth Low Energy

    OpenAIRE

    Prítel, Peter

    2016-01-01

    Táto práca je zameraná na technológiu Bluetooth Low Energy a jej využitie pre komunikáciu so snímačmi neelektrických veličín. Práca popisuje všeobecné vlastnosti technológie Bluetooth. V praktickej časti sa práca venuje aplikácii založenej na frameworku Cordova. Výsledná aplikácia demonštruje komunikáciu so snímačmi prostredníctvom technológie Bluetooth Low Energy. The aim of this report is Bluetooth Low Energy and communication with sensors of non-electrical quantities. The first part des...

  1. A Novel Multiband Miniature Planar Inverted F Antenna Design for Bluetooth and WLAN Applications

    Directory of Open Access Journals (Sweden)

    J. M. Jeevani W. Jayasinghe

    2015-01-01

    Full Text Available A novel compact planar inverted F antenna (PIFA optimized using genetic algorithms for 2.4 GHz (Bluetooth and 5 GHz (UNII-1, UNII-2, UNII-2 extended, and UNII-3 bands is presented. The patch with a shorting pin is on a 20×7×0.762 mm3 substrate, which is suspended in air 5 mm above a 30×7 mm2 ground plane. Genetic algorithm optimization (GAO is used to optimize the patch geometry, feed position, and shorting pin position simultaneously. Simulations are carried out by using HFSS and a prototype antenna is fabricated to compare the measurements with the simulations. The antenna shows fractional impedance bandwidths of 4% and 21% and gains of 2.5 dB and 3.2 dB at lower and upper bands, respectively.

  2. Model-based testing with UML applied to a roaming algorithm for bluetooth devices.

    Science.gov (United States)

    Dai, Zhen Ru; Grabowski, Jens; Neukirchen, Helmut; Pals, Holger

    2004-11-01

    In late 2001, the Object Management Group issued a Request for Proposal to develop a testing profile for UML 2.0. In June 2003, the work on the UML 2.0 Testing Profile was finally adopted by the OMG. Since March 2004, it has become an official standard of the OMG. The UML 2.0 Testing Profile provides support for UML based model-driven testing. This paper introduces a methodology on how to use the testing profile in order to modify and extend an existing UML design model for test issues. The application of the methodology will be explained by applying it to an existing UML Model for a Bluetooth device.

  3. Model-based testing with UML applied to a roaming algorithm for Bluetooth devices

    Institute of Scientific and Technical Information of China (English)

    DAI Zhen Ru; GRABOWSKI Jens; NEUKIRCHEN Helmut; PALS Holger

    2004-01-01

    In late 2001,the Object Management Group issued a Request for Proposal to develop a testing profile for UML2.0. In June 2003,the work on the UML 2.0 Testing Profile was finally adopted by the OMG. Since March 2004,it has become an official standard of the OMG. The UML 2.0 Testing Profile provides support for UML based model-driven testing. This paper introduces a methodology on how to use the testing profile in order to modify and extend an existing UML design model for test issues. The application of the methodology will be explained by applying it to an existing UML Model for a Bluetooth device.

  4. Model-based testing with UML applied to a roaming algorithm for Bluetooth devices

    Institute of Scientific and Technical Information of China (English)

    DAIZhenRu; GRABOWSKIJens; NEUKIRCHENHelmut; PALSHolger

    2004-01-01

    In late 2001, the Object Management Group issued a Request for Proposal to develop a testing profile for UML 2.0. In June 2003, the work on the UML 2.0 Testing Profile was finally adopted by the OMG. Since March 2004, it has become an official standard of the OMG. The UML 2.0 Testing Profile provides support for UML based model-driven testing. This paper introduces a methodology on how to use the testing profile in order to modify and extend an existing UML design model for test issues. The application of the methodology will be explained by applying it to an existing UML Model for a Bluetooth device.

  5. Adaptive Kalman filter for indoor localization using Bluetooth Low Energy and inertial measurement unit.

    Science.gov (United States)

    Yoon, Paul K; Zihajehzadeh, Shaghayegh; Bong-Soo Kang; Park, Edward J

    2015-08-01

    This paper proposes a novel indoor localization method using the Bluetooth Low Energy (BLE) and an inertial measurement unit (IMU). The multipath and non-line-of-sight errors from low-power wireless localization systems commonly result in outliers, affecting the positioning accuracy. We address this problem by adaptively weighting the estimates from the IMU and BLE in our proposed cascaded Kalman filter (KF). The positioning accuracy is further improved with the Rauch-Tung-Striebel smoother. The performance of the proposed algorithm is compared against that of the standard KF experimentally. The results show that the proposed algorithm can maintain high accuracy for position tracking the sensor in the presence of the outliers. PMID:26736389

  6. An analysis of visitors' behavior in the Louvre Museum: A study using Bluetooth data

    CERN Document Server

    Yoshimura, Yuji; Ratti, Carlo; Girardin, Fabien; Carrascal, Juan Pablo; Blat, Josep; Sinatra, Roberta

    2016-01-01

    Museums often suffer from so-called "hyper-congestion", wherein the number of visitors exceeds the capacity of the physical space of the museum. This can potentially deteriorate the quality of visitor's experience disturbed by other visitors' behaviors and presences. Although this situation can be mitigated by managing visitors' flow between spaces, a detailed analysis of the visitor's movement is required to fully realize and apply a proper solution to the problem. This paper analyzes the visitor's sequential movements, the spatial layout, and the relationship between them in large-scale art museums - Louvre Museum - using anonymized data collected through noninvasive Bluetooth sensors. This enables us to unveil some features of visitor's behavior and spatial impact that shed some light on the mechanism of the museum overcrowding. The analysis reveals that the visiting style of short and long stay visitors are not as significantly different as one could expect. Both types of visitors tend to visit a similar ...

  7. BOSE BLUETOOTH

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    著名音响品牌Bose在中国推出其首款单耳蓝牙通讯耳机——全新Bose Bluetooth蓝牙通讯耳机。这款专为在移动环境中使用手机通话功能而设计的蓝牙耳机,能够提供高质、便捷的移动通讯体验。

  8. Making mundane pleasures visible: mediating daily likings with lightweight technology

    NARCIS (Netherlands)

    Kanis, M.; Brinkman, W.-P.

    2010-01-01

    This article discusses the sharing of daily pleasures with lightweight technology. Two mobile applications called PosiPost Me (Mobile internet edition) and PosiPost Be (Bluetooth edition) were developed to understand the potential of remote and proximity-based sharing of positive messages. These imp

  9. 基于蓝牙的车轮力传感器数据传输系统设计%The design of wheel force transducer data transmission system based on bluetooth

    Institute of Scientific and Technical Information of China (English)

    刘庆华; 晏华文; 林国余; 王东

    2013-01-01

    Wheel force transducer(WFT) has an important influence on the study of a finished vehicle perform -ance.In order to further improve data acquisition accuracy of the WFT , the data transmission system based onBluetooth wireless technology has been developed .WFT is the foundation of the data transmission system, whichincludes an acquisition module, a transmission module and a Bluetooth module .C8051F021 is the core of theacquisition module responsible for collecting output of the WFT ; C8051F040 is the core of the transmission moduleresponsible for translating orders and transmitting data to upper computer for processing and display ; CSRBC04 is the core of the Bluetooth module responsible for performing the communication between the acquisitionmodule and the transmission module by the Bluetooth wireless technology .Transfer rate and stability of the systemhave been tested in some experiments,and a comparative test with the existed nRF2401 wireless transmissionhas been conducted,The result shows that the Bluetooth wireless transmission system has a larger transfer rateand a better stability than the former.%车轮力传感器对汽车整车性能研究有着重要的作用,为了提高车轮力传感器数据的采集精度,开发了基于蓝牙无线技术的数据传输系统。以车轮力传感器( wheel force transducer )为基础,设计了包含采集模块、传输模块和蓝牙模块的数据传输系统。采集模块以C8051F021为核心芯片,负责采集车轮力传感器输出的数据、码盘数据和检测电池电量;传输模块以C8051F040为核心芯片,负责转换命令格式和向上位机传送数据,供其后续处理和显示;蓝牙模块以CSR BC04为核心芯片,负责采集模块和传输模块之间的通信,使其通过蓝牙方式实现通讯。实验测试了系统的传输率和稳定性,并与现有的nRF2401无线传输进行对比测试,结果表明,蓝牙无线传输系统有着更快的传输率和更好的稳定性。

  10. Bluetooth SIG透过技术互通性致力提升医疗保健体验

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    全球数以10亿受到包括糖尿病、高血压及心脏病等长期疾病折磨的病人.将可受惠于Bluetooth Special Interest Group(SIG,蓝牙技术联盟)在促使医疗相关产品与消费电子产品配合使用而作出的努力。

  11. Performance Analysis and Comparison of Bluetooth Low Energy with IEEE 802.15.4 and SimpliciTI

    OpenAIRE

    Jouni Tervonen; Konstantin Mikhaylov; Nikolaos Plevritakis

    2013-01-01

    Bluetooth Low Energy (BLE) is a recently developed energy-efficient short-range wireless communication protocol. In this paper, we discuss and compare the maximum peer-to-peer throughput, the minimum frame turnaround time, and the energy consumption for three protocols, namely BLE, IEEE 802.15.4 and SimpliciTI. The specifics and the main contributions are the results both of the theoretical analysis and of the empirical measurements, which were executed using the commercially available hardwa...

  12. On adaptive frequency hopping to combat coexistence interference between bluetooth and IEEE 802.11b with practical resource constraints

    OpenAIRE

    Chek, MCH; Kwok, YK

    2004-01-01

    In contrast to traditional frequency hopping techniques, Adaptive Frequency Hopping (AFH) is a low cost and low power solution to avoid interference dynamically. While each AFH algorithm proposed previously is shown to be efficient, a detailed performance analysis of various AFH mechanisms under realistic resource constraints is yet to be done. In particular, based on our performance study on Bluetooth systems presented in this paper, we have found that the AFH mechanism adopted by IEEE 802.1...

  13. Charge-Domain Signal Processing of Direct RF Sampling Mixer with Discrete-Time Filters in Bluetooth and GSM Receivers

    Directory of Open Access Journals (Sweden)

    Ho Yo-Chuol

    2006-01-01

    Full Text Available RF circuits for multi-GHz frequencies have recently migrated to low-cost digital deep-submicron CMOS processes. Unfortunately, this process environment, which is optimized only for digital logic and SRAM memory, is extremely unfriendly for conventional analog and RF designs. We present fundamental techniques recently developed that transform the RF and analog circuit design complexity to digitally intensive domain for a wireless RF transceiver, so that it enjoys benefits of digital and switched-capacitor approaches. Direct RF sampling techniques allow great flexibility in reconfigurable radio design. Digital signal processing concepts are used to help relieve analog design complexity, allowing one to reduce cost and power consumption in a reconfigurable design environment. The ideas presented have been used in Texas Instruments to develop two generations of commercial digital RF processors: a single-chip Bluetooth radio and a single-chip GSM radio. We further present details of the RF receiver front end for a GSM radio realized in a 90-nm digital CMOS technology. The circuit consisting of low-noise amplifier, transconductance amplifier, and switching mixer offers dB dynamic range with digitally configurable voltage gain of 40 dB down to dB. A series of decimation and discrete-time filtering follows the mixer and performs a highly linear second-order lowpass filtering to reject close-in interferers. The front-end gains can be configured with an automatic gain control to select an optimal setting to form a trade-off between noise figure and linearity and to compensate the process and temperature variations. Even under the digital switching activity, noise figure at the 40 dB maximum gain is 1.8 dB and dBm IIP2 at the 34 dB gain. The variation of the input matching versus multiple gains is less than 1 dB. The circuit in total occupies 3.1 . The LNA, TA, and mixer consume less than mA at a supply voltage of 1.4 V.

  14. Charge-Domain Signal Processing of Direct RF Sampling Mixer with Discrete-Time Filters in Bluetooth and GSM Receivers

    Directory of Open Access Journals (Sweden)

    2006-01-01

    Full Text Available RF circuits for multi-GHz frequencies have recently migrated to low-cost digital deep-submicron CMOS processes. Unfortunately, this process environment, which is optimized only for digital logic and SRAM memory, is extremely unfriendly for conventional analog and RF designs. We present fundamental techniques recently developed that transform the RF and analog circuit design complexity to digitally intensive domain for a wireless RF transceiver, so that it enjoys benefits of digital and switched-capacitor approaches. Direct RF sampling techniques allow great flexibility in reconfigurable radio design. Digital signal processing concepts are used to help relieve analog design complexity, allowing one to reduce cost and power consumption in a reconfigurable design environment. The ideas presented have been used in Texas Instruments to develop two generations of commercial digital RF processors: a single-chip Bluetooth radio and a single-chip GSM radio. We further present details of the RF receiver front end for a GSM radio realized in a 90-nm digital CMOS technology. The circuit consisting of low-noise amplifier, transconductance amplifier, and switching mixer offers 32.5 dB dynamic range with digitally configurable voltage gain of 40 dB down to 7.5 dB. A series of decimation and discrete-time filtering follows the mixer and performs a highly linear second-order lowpass filtering to reject close-in interferers. The front-end gains can be configured with an automatic gain control to select an optimal setting to form a trade-off between noise figure and linearity and to compensate the process and temperature variations. Even under the digital switching activity, noise figure at the 40 dB maximum gain is 1.8 dB and +50 dBm IIP2 at the 34 dB gain. The variation of the input matching versus multiple gains is less than 1 dB. The circuit in total occupies 3.1 mm 2 . The LNA, TA, and mixer consume less than 15.3 mA at a supply voltage of 1.4 V.

  15. 8.64-11.62 GHz CMOS VCO and divider in a zero-IF 802.11a/b/g WLAN and Bluetooth application

    Energy Technology Data Exchange (ETDEWEB)

    Sun Yu; Mei Niansong; Lu Bo; Huang Yumei; Hong Zhiliang, E-mail: yumeihuang@fudan.edu.c [ASIC and System State Key Laboratory, Fudan University, Shanghai 201203 (China)

    2010-10-15

    A fully integrated VCO and divider implemented in SMIC 0.13-{mu}m RFCMOS 1P8M technology with a 1.2 V supply voltage is presented. The frequency of the VCO is tuning from 8.64 to 11.62 GHz while the quadrature LO signals for 802.11a WLAN in 5.8 GHz band or for 802.11b/g WLAN and Bluetooth in 2.4 GHz band can be obtained by a frequency division by 2 or 4, respectively. A 6 bit switched capacitor array is applied for precise tuning of all necessary frequency bands. The testing results show that the VCO has a phase noise of-113 dBc - 1 MHz offset from the carrier of 5.5 GHz by dividing VCO output by two and the VCO core consumes 3.72 mW. The figure-of-merit for the tuning-range (FOM{sub T}) of the VCO is -192.6 dBc/Hz. (semiconductor integrated circuits)

  16. Research on The Application of Portable Bluetooth RFID Device%手持蓝牙射频识别设备的应用研究

    Institute of Scientific and Technical Information of China (English)

    张晶晶; 丁永军; 海波

    2015-01-01

    To improve the informatization level of small and medium-sized enterprises and reduce costs, the wireless network, mobile terminals and RFID were introduced to warehouse management system, which resolved the key technology of RFID reader setting, mobile terminal database access, warehousing, security monitoring. As a result, the warehouse management system for small and medium-sized enterprises was developed based on Bluetooth RFID.%为了提高小型企业仓库数字化管理水平,从降低实现成本的角度出发,将无线网络、移动终端、RFID引入仓库管理系统,解决了RFID读卡器读写设置、远程数据访问、物品入库、出库、盘点、安全监控等关键技术,最终实现了一套基于手持蓝牙RFID设备的小型企业仓库管理系统。

  17. МОБИЛЬНЫЕ BLUETOOTH ТЕГИ

    OpenAIRE

    Намиот, Дмитрий

    2014-01-01

    В статье рассматриваются вопросы разработки мобильных сервисов, связанных с беспроводными тегами. В первой части работы анализируются устройства (теги) на основе Bluetooth Low Energy и предложенная компанией Apple технология iBeacon. Остальная часть статьи посвящена развитию модели персональных и мобильных тегов на основе Bluetooth. Основным достижением этой модели является то, что она охватывает все этапы жизненного цикла представление тега (тегов), привязка к ним информационного наполнения ...

  18. Evaluation of Digital Compressed Sensing for Real-Time Wireless ECG System with Bluetooth low Energy.

    Science.gov (United States)

    Wang, Yishan; Doleschel, Sammy; Wunderlich, Ralf; Heinen, Stefan

    2016-07-01

    In this paper, a wearable and wireless ECG system is firstly designed with Bluetooth Low Energy (BLE). It can detect 3-lead ECG signals and is completely wireless. Secondly the digital Compressed Sensing (CS) is implemented to increase the energy efficiency of wireless ECG sensor. Different sparsifying basis, various compression ratio (CR) and several reconstruction algorithms are simulated and discussed. Finally the reconstruction is done by the android application (App) on smartphone to display the signal in real time. The power efficiency is measured and compared with the system without CS. The optimum satisfying basis built by 3-level decomposed db4 wavelet coefficients, 1-bit Bernoulli random matrix and the most suitable reconstruction algorithm are selected by the simulations and applied on the sensor node and App. The signal is successfully reconstructed and displayed on the App of smartphone. Battery life of sensor node is extended from 55 h to 67 h. The presented wireless ECG system with CS can significantly extend the battery life by 22 %. With the compact characteristic and long term working time, the system provides a feasible solution for the long term homecare utilization.

  19. IMPLEMENTATION OF A SECURITY PROTOCOL FOR BLUETOOTH AND WI-FI

    Directory of Open Access Journals (Sweden)

    U. Pavan Kumar

    2013-06-01

    Full Text Available This paper is mainly based on providing security to the wireless networks through which devices likeBluetooth gets connected. The Wi-Fi connections are also prone to various attacks these days. The protocols that are required to provide security to wireless networks can be implemented by creating awireless scenario using the software Network Simulator. This paper illustrates a scenario to check the security protocol. As NS2 mainly has the implementation of routing protocols, a new protocol should be designed especially for security purpose. This is done by following many tutorials to get a minimum basic knowledge of NS2, C/C++ coding. The security feature followed in the paper is encryption/decryption of the data that is being exchanged. Data should be ensured as and then there will be a perfect implementation of the protocol. So, the paper throughout concentrates on adding a new security protocol to NS2 and implementation of that protocol by providing a wireless scenario.

  20. Jídelní menu pro mobilní telefony s Bluetooth

    OpenAIRE

    Dzurňák, Tomáš

    2009-01-01

    Cílem projektu bylo navrhnout a realizovat aplikaci pro mobilní telefon a stolní počítač, která umožní v restauraci pomoci mobilního telefonu procházet jídelní menu a následně zadávat objednávky. Stolní počítač poskytuje informace z jídelního menu a spravuje objednávky. Stolní počítač je schopný komunikovat naráz s více mobilními telefony simultánně. Komunikace mezi mobilním telefonem a stolním počítačem je realizována pomoci bezdrátové technologie Bluetooth. Uživatelské rozhraní mobilní apli...

  1. Evaluation of bluetooth low power for physiological monitoring in a home based cardiac rehabilitation program.

    Science.gov (United States)

    Martin, Timothy; Ding, Hang; D'Souza, Matthew; Karunanithi, Mohan

    2012-01-01

    Cardiovascular disease (CVD) is the leading cause of mortality in Australia, and places large burdens on the healthcare system. To assist patients with CVDs in recovering from cardiac events and mediating cardiac risk factors, a home based cardiac rehabilitation program, known as the Care Assessment Platform (CAP), was developed. In the CAP program, patients are required to manually enter health information into their mobile phones on a daily basis. The manual operation is often subject to human errors and is inconvenient for some elderly patients. To improve this, an automated wireless solution has been desired. The objectives of this paper are to investigate the feasibility of implementing the newly released Bluetooth 4.0 (BT4.0) for the CAP program, and practically evaluate BT4.0 communications between a developed mobile application and some emulated healthcare devices. The study demonstrated that BT4.0 addresses usability, interoperability and security for healthcare applications, reduces the power consumption in wireless communication, and improves the flexibility of interface for software development. This evaluation study provides an essential mobile BT4.0 framework to incorporate a large range of healthcare devices for clinical assessment and intervention in the CAP program, and hence it is useful for similar development and research work of other mobile healthcare solutions. PMID:22797030

  2. Circularly polarized triple band glass shaped monopole patch antenna with metallic reflector for bluetooth & wireless applications

    Science.gov (United States)

    Jangid, K. G.; Choudhary, N.; Jain, P.; Sharma, B. R.; Saini, J. S.; Kulhar, V. S.; Bhatnagar, D.

    2016-03-01

    This paper presents the design and performance of strip line fed glass shaped monopole patch antenna having with overall size 30mm × 30 mm × 1.59 mm. In the patch; an eight shaped slot and in the ground plane an eight shaped ring are introduced. A metallic ground plane is also introduced at appropriate location beneath the ground plane. The proposed antenna is simulated by applying CST Microwave Studio simulator. Antenna provides circularly polarized radiations, triple broad impedance bandwidth of 203MHz (2.306GHz to 2.510GHz), 42MHz (2.685GHz to 2.757GHz) & GHz (3.63 GHz to 6.05 GHz), high flat gain (close to 5dBi) and good radiation properties in the desired frequency range. This antenna may be a very useful tool for 2.45GHz Bluetooth communication band as well as for 2.4GHz/5.2 GHz /5.8 GHz WLAN bands & 3.7GHz/5.5 GHz Wi-Max bands.

  3. TECNOLOGÍA INALÁMBRICA BLUETOOTH SOBRE LOS SERVICIOS DE COMUNICACIONES EN LOS ÁMBITOS SOCIAL Y EMPRESARIAL.

    Directory of Open Access Journals (Sweden)

    Gabriela Lorefice Sparacino

    2016-06-01

    Full Text Available La tecnología inalámbrica Bluetooth es un estándar de comunicaciones cuyo objetivo es, básicamente, eliminar los cables entre dispositivos móviles y PCs. Originalmente, Bluetooth fue creada con el fin de definir una especificación global y abierta para la comunicación inalámbrica de voz y datos a corta distancia utilizando radiofrecuencia. La especificación Bluetooth viene definida por rangos de frecuencia de radio que pueden ser bajos (del orden de 10 metros y ocasionalmente medios (sobre los 100 metros, con capacidad para la transmisión tanto de datos como de voz a más de 720 Kbps por canal. Está orientada al uso personal, pudiéndose extender sus usos a nivel empresarial. Tomando en consideración todo esto, el presente trabajo tiene como objetivo determinar el impacto de la tecnología inalámbrica Bluetooth sobre los servicios de comunicación en los ámbitos social y empresarial. Para lograrlo, se realizó una investigación de tipo de campo y descriptiva, en la modalidad de proyecto factible y el diseño estuvo apoyado bajo el criterio no experimental. Como instrumentos para la recolección de datos se utilizó la ficha de trabajo, donde se plasmaron los antecedes de la investigación y se elaboraron dos encuestas, una para recolectar información de la dimensión ámbito social y otra para la dimensión ámbito empresarial, obteniéndose como resultados en el ámbito social que la sociedad marabina está en disposición de incluir esta tecnología en sus procesos cotidianos pero a largo plazo mientras que en el ámbito empresarial los expertos encuestados mostraron gran interés por implantar esta tecnología en ciertas áreas de la empresa y coincidieron en realizar estudios de factibilidad y pequeñas pruebas.

  4. Sistema de control i monitorització de curses Slot basat en una Raspberry Pi, Contiki i Bluetooth Low Energy

    OpenAIRE

    Babí Oller, Albert

    2016-01-01

    Aquest article presenta una plataforma unificada que ofereix les funcionalitats bàsiques per a monitoritzar i controlar curses Slot. El disseny és una proposta innovadora que utilitza tecnologies relacionades amb l'àmbit emergent de l'Internet de les coses. El sistema ofereix un control remot dels cotxes Slot basat en el protocol de comunicació eficient Bluetooth Low Energy. També permet monitoritzar les curses des d'una interfície gràfica gràcies a nodes de detecció de moviment situats al ll...

  5. 蓝牙技术的黄金时代来临了吗?%Is Bluetooth ready for prime time?

    Institute of Scientific and Technical Information of China (English)

    YannisBournakas

    2002-01-01

    短距离无线连接标准Bluetooth(蓝牙)当属过去十年受到最广泛推广的通信技术之一。配备Bluetooth模块的PC卡、移动电话和笔记本电脑已出现在商店的货架上。但是,Bluetooth若要在市场上大行其道,肯定还需要至少2-3年的时间。

  6. PODPORA ZA USB IN UPORABA VMESNIKA USB BLUETOOTH NA RAZVOJNI PLOŠČI VIRTEX 5 XUPV5-LX110T

    OpenAIRE

    Marholt, Matic

    2011-01-01

    V diplomski nalogi smo na razvojni plošči Virtex 5 XUPV5-LX110T dodali podporo za Cypresov krmilnik USB. V distribucijo Petalinux, ki smo jo naložili na razvojno ploščo, smo dodali gonilnik za krmilnik USB in programe Bluetooth. Napisali smo program, s katerim imamo prek komunikacije Bluetooth na razvojni plošči nadzor nad LED diodami in stikali. Izvedli smo tudi preizkus branja pomnilniškega ključa USB na razvojni plošči.

  7. Beacons BLE (Bluetooth Low Energy) en el sector turístico, control de afluencia y servicios de valor añadido

    OpenAIRE

    Arregui Caballero de Tineo, Arkaitz

    2016-01-01

    Con la aparición del Bluetooth Smart y su bajo consumo, se ha abierto un nuevo abanico de posibilidades para las experiencias de proximidad. El uso de beacons Bluetooth Smart hace posible crear nuevas relaciones Proveedor-Usuario mediante la detección de usuarios que se acercan a una localización concreta. El bajo coste de los dispositivos BLE unido a la posibilidad de estar activo por largos periodos de tiempo con una pila de botón, permite marcar un lugar mediante un beacon con independenci...

  8. Unequal Protection of Video Streaming through Adaptive Modulation with a Trizone Buffer over Bluetooth Enhanced Data Rate

    Directory of Open Access Journals (Sweden)

    Rouzbeh Razavi

    2007-12-01

    Full Text Available Bluetooth enhanced data rate wireless channel can support higher-quality video streams compared to previous versions of Bluetooth. Packet loss when transmitting compressed data has an effect on the delivered video quality that endures over multiple frames. To reduce the impact of radio frequency noise and interference, this paper proposes adaptive modulation based on content type at the video frame level and content importance at the macroblock level. Because the bit rate of protected data is reduced, the paper proposes buffer management to reduce the risk of buffer overflow. A trizone buffer is introduced, with a varying unequal protection policy in each zone. Application of this policy together with adaptive modulation results in up to 4 dB improvement in objective video quality compared to fixed rate scheme for an additive white Gaussian noise channel and around 10 dB for a Gilbert-Elliott channel. The paper also reports a consistent improvement in video quality over a scheme that adapts to channel conditions by varying the data rate without accounting for the video frame packet type or buffer congestion.

  9. 蓝牙手机室内定位系统%Indoor positioning system for bluetooth cell phone

    Institute of Scientific and Technical Information of China (English)

    张浩; 赵千川

    2011-01-01

    This paper introduced a low-cost platform for locating bluetooth cell phones and releasing position information. The authors improved the scheme of measuring Received Signal Strength Indication ( RSSI) of bluetooth devices lo locate multiple cell phones simultaneously, developed cell phone program to receive position information via Wi-Fi and display it on map. The experimental results show that the system is accurate in positioning and easy to use, and it provides a platform support for applications of Internet of Things (IOT) under current hardware condition.%设计并实现了一种基于蓝牙和Wi-Fi的低成本手机定位和信息发布平台.改进了已有蓝牙设备RSSI检测方案,能对多个手机同时定位;利用Wi-Fi和J2ME技术实现了手机对定位信息的接收和实时显示.实验结果表明系统具有定位准确、使用方便等特点,在目前硬件条件下为物联网应用提供了平台支持.

  10. CSR蓝牙芯片方案获Nokia第一款Bluetooth v2.0+EDR耳机采用

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    无线技术供货商暨蓝牙连接方案全球领导厂商CSR(LSE:CSR.L)宣布,Nokia有史以来最小的蓝牙单音耳机Nokia Bluetooth Headset BH-800采纳CSR的BlueCore4-ROM芯片。Nokia Bluetooth Headset BH-800日前在CES2006国际消费性电子展发表.并于2006年第二季开始供应,它是Nokia第一款搭载Bluetooth v2.0 with Enhanced Data Ratec EDR)的蓝牙无线耳机.并且支持新核定的HFP1.5 Bluetooth profiIe以改善整体语音品质。由于Nokia采纳CSR BlueCore4-ROM,因此能减少外部器件需求并加速上市时程。

  11. Implementation of Maintenance System Based on Bluetooth Low Energy for Hermetic Inline Amplifiers in CATV Networks

    Directory of Open Access Journals (Sweden)

    Katsuhiro Naito

    2016-02-01

    Full Text Available Cable television (CATV systems generally consist of a headend, trunk cables, distribution cables in the neighborhood, drop cables to a home and in-house wiring, and terminal equipment. Coaxial cables bring a CATV signal to customer premises through a service drop, an overhead or underground cable. Hermetic inline amplifiers are used to amplify the attenuated CATV signal due to propagation loss or splitting the coaxial cable. They are usually installed on utility poles. Therefore, maintenance methods for inline amplifiers on utility poles are important issues in CATV operations. This paper proposes a new maintenance system for inline amplifiers in CATV systems, and develops a prototype implementation. The proposed system consists of an amplifier gain analyser to measure amplification performance of inline amplifiers, a special smartphone application, and a cloud server. The proposed amplifier gain analyser is composed of three functions: a generation of high frequency signals for testing, measurement of the test signal gain, and wireless communication based on Bluetooth Low Energy (BLE. We develop a signal generation circuit for a test signal and a smoothing circuit for converting the high frequency test signals into DC signals. The amplifier gain analyser can evaluate an amplifier gain by comparing an input test signal from the signal generation circuit and an output test signal from an inline amplifier. The measurement function uses Nordic nRF51822, which is a System on Chip (SoC for BLE because Nordic nRF51822 has some AD converter ports for evaluating the DC signals. The smartphone application employs BLE communication function to collect the measured amplifier gain from the amplifier gain analyser. Therefore, we developed a special data collection application for iOS. The data collection application has a central function of BLE, and can find a target peripheral device that is the amplifier gain analyser in this paper. Therefore, technicians

  12. Design of Bluetooth Micros-trip Antenna Based on ADS%基于ADS智能穿戴设备蓝牙微带天线设计与优化

    Institute of Scientific and Technical Information of China (English)

    孔淑苗

    2016-01-01

    Wearable device is a kind of technology and equipment, to blend in electronics or computer can easily wear in physical clothing and accessories, including health and fitness of tracking information, etc. In general, intelligence can be worn equipment there will be some form of communication ability and will allow users to real-time access to information, usually this kind of communication using Bluetooth technology, locally stored data via Bluetooth transmission to the mobile phone and upload the cloud. Other intelligent wearable technology equipment including the motion sensor photo and synchronization of mobile devices, such as watches, glasses, smart textiles, hair band, thin sections and hats, jewelry, such as bracelets, rings, earrings, etc. A patch antenna is a narrowband antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. Advantages of micros-trip antennas include: low cost to fabricate, light weight, simple structure, easy to process. In this paper, by using ADS software on Bluetooth 2.4 GHz frequency micros-trip antenna design and simulation optimization.%智能可穿戴设备是一种技术设备,指将电子技术或电脑融入可以轻松地穿在身体上的服装和配件,提供包括健康和健身的跟踪信息等。一般来说,智能可穿戴设备会有某种形式的通信能力和将允许使用者实时获取信息,通常这种通信利用蓝牙技术进行通信,将本地存储的数据通过蓝牙传输到手机并上传云端。其他智能可穿戴技术设备包括小运动传感器拍照和同步的移动设备,例如手表、眼镜,智能纺织品,发带,薄片和帽子,珠宝,如手镯、戒指、耳环等。微带天线一种窄带天线,制作在金属蚀刻天线元素模式连着一个绝缘介质衬底,

  13. Android平台下蓝牙温度测量%Temperature Measurement with Bluetooth under Android Platform

    Institute of Scientific and Technical Information of China (English)

    王帅; 沈浩; 骆长泽; 沙宪政

    2015-01-01

    利用智能手机平台和蓝牙实现温度数据的实时传输显示.使用Arduino Uno r3板采集DS18B20数字温度传感器采集的温度数据,通过HC-05蓝牙将数据传输给Android系统的智能手机,实现温度数据的传输.利用Java语言编写Android开发环境下的应用程序,可以实现实时温度数据显示、存储和绘制出温度波动图形.温度传感器经过实验测试,满足人体体温测量精度和准确度.该文可以为其他移动医疗手机智能产品开发提供借鉴.%To realize the real-time transmission of temperature data and display using the platform of inteligent mobile phone and bluetooth. Application of Arduino Uno R3 in temperature data acquisition of digital temperature sensor DS18B20 acquisition, through the HC-05 bluetooth transmits the data to the inteligent smart phone Android system, realizes transmission of temperature data. Using Java language to write applications program under Android development environment, can achieve real-time temperature data display, storage and drawing temperaturefluctuations drawn graphics. Temperature sensor is experimentaly tested to meet the body temperature measurement precision and accuracy. This paper can provide a reference for other smart phone mobile medical product development.

  14. Design of a Bluetooth wireless charging system based on MSP430F149%基于MSP430F149的蓝牙无线充电系统设计

    Institute of Scientific and Technical Information of China (English)

    陈焕波; 杨本全; 袁杰; 朱丹丹

    2015-01-01

    The microcontroller MSP430F149 is taken as control center in this system. The Bluetooth technology is used to realize the information matching between the chargers and portable electronics. The electric energy is transmitted by electromag⁃netic resonance technology,and of constant voltage output of electric energy is achieved through commutating and voltage⁃stabi⁃lizing circuit. The lithium battery charging is fulfilled by the charging management module. The advantages of Bluetooth technolo⁃gy is utilized in this design,which can realize one to many or many to many matching connection,has functions of charging state hint,charging control and auto power⁃off after battery is fully charged. It got rid from the previous wire,and solved the charger interface incompatibility of electronic products. It is suitable for various mobile devices and small appliances.%采用MSP430F149单片机作为控制核心,利用蓝牙技术实现充电系统与可携带式电子产品之间的信息匹配,通过电磁谐振技术传输电能,将接收到的电能经过整流稳压电路实现恒压输出,最后通过充电管理模块实现为锂电池充电。该设计利用蓝牙技术,实现一对多或是多对多匹配连接,具有充电状态提示、充电可控和电池充满电后自动断电的功能,摆脱以往电线的束缚,解决了电子产品充电接口不兼容的问题,适用于各手持移动设备以及小型用电器。

  15. Research of Vehicle Location Assisted by Bluetooth Signposts%蓝牙路标辅助车辆定位方法研究

    Institute of Scientific and Technical Information of China (English)

    孙亚飞; 潘通

    2015-01-01

    车辆定位是智能交通系统的核心部分,现有车载导航大多采用GPS与DR航位推算系统组合的方式.针对GPS/DR车载导航系统在高楼、遂道等GPS被遮挡情况下存在定位盲区的问题,该文利用蓝牙路标信息,在导航盲区安装蓝牙路标传感器,对GPS/DR定位结果进行修正.该课题中重点研究了蓝牙路标传感器定位误差修正方法,并分析了路标定位误差模型.研究结果表明:当车速70 km/h,且<170 km/h,位置修正精度可以达到20m以内.%The vehicle location is the core part of intelligent transportation system, most of the existing vehicle navigation use GPS and Dead Reckoning(DR) navigation system. To solve the GPS/DR system problems of positioning blind area problem in high-rise buildings or tunnels,this paper uses bluetooth information, and installs bluetooth signposts sensor in navigation blind area,to correct the GPS/DR positioning results.This topic mainly studies the positioning error correction methods of bluetooth signposts sensor, and analyzes the signpost positioning error model.The results show that when the speed is less than 70 km/h, fixed position accuracy using bluetooth signposts can reach 10 meters;when the speed is more than 70km/h, and less than 170km/h, position correction precision can reach within 20 meters.

  16. ARM与上位机的蓝牙通信系统设计%Design of Bluetooth communication system between ARM and host computer

    Institute of Scientific and Technical Information of China (English)

    毛江锟; 王竹林; 尉广军

    2011-01-01

    Aiming at the problems of easily affected by complex environment, instability and inconvenient connecting of communication system between a certain missile embedded data acquisition system and host computer, a Bluetooth communication system is designed by a new generation of Bluetooth chip of CSR company. The general design scheme of the system, structure block diagram of hardware and software are given. The system consists of ARM and Bluetooth interface circuit, host computer and Bluetooth interface circuit. The testing results show that complex environment is no longer impacting on communication, data transferring is stable and reliable, communication is more convenient.%针对某型导弹装备嵌入式数据采集系统与上位机的通信受复杂环境影响大,不稳定和布线不便的问题,采用CSR公司新一代蓝牙芯片,设计了二者之间的蓝牙通信系统。给出了蓝牙通信系统的总体实现方案,软硬件结构框图。系统由ARM与蓝牙芯片接口电路和上位机与蓝牙芯片接口电路组成。测试结果表明,二者之间的通信不再受复杂环境的影响,数据传输稳定,可靠性高,通信更为方便。

  17. Wireless Fish Finder System Based on Bluetooth 4.0 with Low Power Consumption%基于蓝牙4.0低功耗的无线探鱼器系统

    Institute of Scientific and Technical Information of China (English)

    王威; 李浩

    2014-01-01

    Based on the analysis of ultrasonic ranging and principle of obj ective j udgment,a fish finder system was designed,using Bluetooth 4.0 low power consumption technology and combining mobile APP with hardware. An integrated chip CC2540 was used to control the receiving and sending signal of the ultrasonic transducers,and to obtain the target echo signal.After A/D sampling,the signal data was packaged in a custom format then sent to cell-phone with Bluetooth 4.0 function.Algorithm processing was completed in the mobile terminal to distinguish useful target signal(fish or underwater);and to calculate underwater depth of the target,which could present visu-ally through APP interface of the phone.Finally the feasibility of the system was verified through practical test.%在对超声波测距和目标判定原理分析的基础上,利用蓝牙4.0低功耗技术和手机应用程序与硬件相结合的方法设计出一探鱼系统。此系统利用集成芯片 CC2540实现对超声换能器的信号收发控制,获得目标回波信号,A/D采样后将数据按自定义格式打包,再通过蓝牙4.0发送到具有蓝牙4.0功能的手机上。在手机端进行算法处理,分辨回波是鱼还是水底及目标深度,并直观地呈现在手机应用程序界面中。最终通过实际测试,验证了系统的可行性。

  18. 新型内嵌低功耗蓝牙汽车钥匙远程控制应用%Application of car key remote control system based on embedded low-power consumption bluetooth

    Institute of Scientific and Technical Information of China (English)

    周雅

    2016-01-01

    In view of the characteristics of multi⁃button and single object control of the traditional cars key,a car intelli⁃gent key control system with low⁃power consumption bluetooth communication technology was designed based on car intelligent master control system. 16⁃bit Freescale MC9S12XS128 is adopted as host controller. The low⁃power bluetooth communication module is added into CAPE module to achieve wireless communication between smart phone and key,and complete the car key system taking CC2541 chip as controller. The gravitational acceleration sensor is adopted to identify gestures and control door switch,windows lift,etc. A simulation experiment platform was established to the main performances and functions. The experi⁃ment results show that the system has the characteristics of high safety,stable performance,intelligence,convenient use,etc.%针对传统汽车钥匙多按键操作模式以及控制对象单一等特点,在汽车智能主控系统的基础上,提出并设计一种低功耗蓝牙通信技术的汽车智能钥匙控制系统。采用16位飞思卡尔MC9S12XS128作为主控制器,在汽车被动式进入与启动(CAPE)模块中添加低功耗蓝牙通信模块,与智能手机和汽车钥匙进行无线通信,并完成了由CC2541芯片作为控制器的汽车钥匙系统,通过重力加速度传感器CMA3000识别手势,控制汽车门锁开关、车窗升降等功能。最后,搭建模拟实验平台,对系统主要性能和功能进行测试验证,实验表明,该系统具有安全性高、性能稳定、智能化、使用方便等特点。

  19. 基于手机蓝牙的遥控小车的设计%Design of Remote Control Vehicle Based on Bluetooth of Mobile Phone

    Institute of Scientific and Technical Information of China (English)

    符强; 任风华

    2011-01-01

    阐述一种通过手机蓝牙遥控小车行走的软、硬件设计。手机蓝牙作为客户端,小车上的蓝牙模块HC-04-D作为服务端。客户端采用Eclipse开发环境,J2ME编程,服务端采用单片机控制。双方通过串口仿真协议进行通信,单片机驱动直流电机控制小车行动。实验结果表明.小车可以接收手机遥控信号并灵活地进行前行、倒退、左转、右转和停止等功能。%Introduces a design of remote control vehicle based on bluetooth of mobile phone.The design regards the bluetooth mobile phone as a client and the bluetooth module HC-04-D as the server. Uses Eclipse-based software development environment, J2ME programming in the client, and single chip microcomputer control in the server. Creates a connection based on the RFCOMM protocol and communicates, the SCM drives DC motor to control the car action. The experiment result shows that the vehicle can move, back, turn left, turn right and stop under the control of mobile phone.

  20. Wireless Digital Sensor Based on Bluetooth Technology%基于Bluetooth技术的无线数字传感器

    Institute of Scientific and Technical Information of China (English)

    黄晓林

    2005-01-01

    文中提出基于Bluetooth技术的分布式无线网络测控系统的体系结构,并设计了系统的前、后端硬件构成.由此得出Bluetooth传感器的工作原理与功能,重点对Bluetooth传感器的电路结构和软件功能及其应用进行了研究.Bluetooth传感器由单片机80C51、通用数字传感器接口ADIB60和Bluetooth模块BlueCore01B等组成,通过对BlueCore01B和ADIB60的结构特性的分析,对80C51与BlueCore和ADIB60之间接口和通信的软、硬件进行了设计.Bluetooth传感器可实现测控微微网和互联网,扩大和增强了测控应用领域和功能.

  1. A KIND OF ROUTING TECHNOLOGY OVER BLUETOOTH%一种基于Bluetooth的路由技术

    Institute of Scientific and Technical Information of China (English)

    陈智; 李少谦

    2003-01-01

    Bluetooth是一种用于短距离无线通信的新技术.该文首先描述Bluetooth通信技术中Piconet网络和Scatternet网络的特征,并针对这些特征,分析了路由方法设计的基本原则,然后提出了一种IPover Bluetooth的路由方法,重点分析了在Piconet中、Scatternet中、跨Scatternet几种情况下的路由发现和数据传递的方法,并提出Bluetooth单元的跨Scatternet漫游方法.

  2. ПЕРСОНАЛЬНЫЕ BLUETOOTH ТЕГИ

    OpenAIRE

    Намиот, Дмитрий

    2014-01-01

    В статье рассматриваются вопросы создания мобильных сервисов, связанных с беспроводными тегами. В работе анализируются устройства (теги) на основе Bluetooth Low Energy и предложенная компанией Apple технология iBeacon. Авторами работы предложена и описана модель персональных мобильных Bluetooth тегов. Основным достижением этой модели является то, что она охватывает все этапы жизненного цикла – создание тега (тегов), привязка к ним информационного наполнения и создание сервисов на основе имеющ...

  3. High Gain Multiband Loaded Inverted-F Antennas for Mobile WiMAX, Wi-Fi, Bluetooth and WLAN Operation

    Directory of Open Access Journals (Sweden)

    Debabrata Kumar Karmokar, Khaled Mahbub Morshed, Abu Md. Numan-Al-Mobin & A. N. M. Enamul Kabir

    2010-08-01

    Full Text Available Multiband loaded inverted-F antennas (LIFA’s suitable to be applied in aportable device as an internal antenna having high gain property for mobileWiMAX, Wi-Fi, Bluetooth and WLAN operation are presented. The proposedantennas are directly feed by 50 Ω coaxial connector. The antenna armseffectively control the excited resonant modes for the required operation. Totalareas occupied by the antennas are 24 × 37 and 29 × 37 mm2 in case of slightlyloaded IFA (SLIFA and moderately loaded IFA (MLIFA respectively. Theantennas contain an incredibly high peak gains of 8.31, 8.88 and 6.32 dBi and8.48, 8.67 and 6.89 dBi for 2.3 GHz mobile WiMAX, 2.4 GHz WLAN/Bluetoothand 5.8 GHz Wi-Fi operation for SLIFA and MLIFA respectively, with less than0.84 and 1.8 dBi gain variation at lower and upper operating band within the 10dB return loss bandwidth. In addition, the antennas have achievable bandwidth,return loss and radiation characteristics.

  4. ZigBee : A Promising Wireless Technology

    Directory of Open Access Journals (Sweden)

    Harleen Kaur Sahota

    2012-12-01

    Full Text Available As a result of high cost of laying the wired networks andincreasing demand for mobility, the wireless network has gainedpopularity in recent times in residential, commercial andindustrial applications. Several wireless technologies haveemerged ranging from short, medium and long distances.Presently, Bluetooth, Infrared and Wireless Local Area Network(WLAN are some of the most widely used wirelesscommunication technologies. These technologies had somelimitations like short battery life, high power dissipation, highdata rate, complex, etc. ZigBee emerges as a powerful wirelessnetwork technology which overcomes these shortcomings ofother wireless technologies. The paper reviews different aspectsof ZigBee network: ZigBee architecture, Devices, RoutingProtocol, Forming and Joining a ZigBee Network.

  5. Technology

    Directory of Open Access Journals (Sweden)

    Xu Jing

    2016-01-01

    Full Text Available The traditional answer card reading method using OMR (Optical Mark Reader, most commonly, OMR special card special use, less versatile, high cost, aiming at the existing problems proposed a method based on pattern recognition of the answer card identification method. Using the method based on Line Segment Detector to detect the tilt of the image, the existence of tilt image rotation correction, and eventually achieve positioning and detection of answers to the answer sheet .Pattern recognition technology for automatic reading, high accuracy, detect faster

  6. GPRS and Bluetooth Based Devices/Mobile Connectivity Shifting From Manual To Automation For Performance Optimization

    Directory of Open Access Journals (Sweden)

    Nazia Bibi

    2011-09-01

    Full Text Available Many companies/organizations are trying to move towards automation and provide their workers with the internet facility on their mobile in order to carry out their routine tasks to save time and resources. The proposed system is based on GPRS technology aims to provide a solution to problem faced in carryout routine tasks considering mobility. The system is designed in a way that facilitates Workers/field staff get updates on their mobile phone regarding tasks at hand. This System is beneficial in a sense that it saves resources in term of time, human resources and cuts down the paper work. The proposed system has been developed in view of research study conducted in the software development and telecom industry and provides a high end solution to the customers/fieldworkers that use GPRS technology for transactions updates of databases.

  7. A Solution Based on Bluetooth Low Energy for Smart Home Energy Management

    OpenAIRE

    Mario Collotta; Giovanni Pau

    2015-01-01

    The research and the implementation of home automation are getting more popular because the Internet of Things holds promise for making homes smarter through wireless technologies. The installation of systems based on wireless networks can play a key role also in the extension of the smart grid towards smart homes, that can be deemed as one of the most important components of smart grids. This paper proposes a fuzzy-based solution for smart energy management in a home automation wireless netw...

  8. A stigmergic approach to indoor localization using bluetooth low energy beacons

    OpenAIRE

    Palumbo, Filippo; Barsocchi, Paolo; Chessa, Stefano; Augusto, Juan Carlos

    2015-01-01

    Localization of people and devices is one of the main building blocks of context aware systems since the user position represents the core information for detecting user's activities, devices activations, proximity to points of interest, etc. While for outdoor scenarios Global Positioning System (GPS) constitutes a reliable and easily available technology, for indoor scenarios GPS is largely unavailable. In this paper we present a range-based indoor localization system that exploits the Recei...

  9. Bluetooth low energy security research%低功耗蓝牙的安全性研究

    Institute of Scientific and Technical Information of China (English)

    刘伟

    2015-01-01

    基于提高低功耗蓝牙安全的目的,通过对其安全机制的深入分析发现所采用的高级加密标准(AES)加密密钥存在安全隐患,结合RSA非对称加密算法和AES对称加密的特点,提出一种两者相结合的混合加密安全机制,该机制在密钥分发前使用RSA加密AES的密钥,使用AES加密双方的通信信息,使攻击者无法获得AES的密钥而无法解密信息,从而提高低功耗蓝牙的安全性. 通过模拟实验表明该机制的加密速度和耗时均在可接受范围内.%Based on the purpose of improving the security of Bluetooth Low Energy (BLE), through the deep analysis of BLE security mechanisms, a security risk of encryption key of Advanced Encryption Standard (AES) that is used by BLE is found. A cryptographic security mechanism is proposed which combines the advantage of RSA asymmetric encryption algorithm and AES symmetric encryption algorithm. The mechanism uses RSA encrypt AES's key before key distribution, and then uses AES encrypted communication between the two sides, so an attacker cannot get AES encryption key and cannot decrypt the information, thereby improve the security of BLE. Through simulation experiments it proves that the encryption speed and time-consuming of the mechanism is within an acceptable range.

  10. An empirical study of spatial and transpatial social networks using Bluetooth and Facebook

    CERN Document Server

    Kostakos, Vassilis

    2009-01-01

    This study provides insights into the quantitative similarities, differences and relationships between users' spatial, face-to-face, urban social networks and their transpatial, online counterparts. We explore and map the social ties within a cohort of 2602 users, and how those ties are mediated via physical co-presence and online tools. Our analysis focused on isolating two distinct segments of the social network: one mediated by physical co-presence, and the other mediated by Facebook. Our results suggest that as a whole the networks exhibit homogeneous characteristics, but individuals' involvement in those networks varies considerably. Furthermore this study provides a methodological approach for jointly analysing spatial & transpatial networks utilising pervasive and ubiquitous technology.

  11. DESIGNING AND IMPLEMENTING BLUETOOTH COMMUNICATION-BASED SMS PLATFORM%基于蓝牙通信的短信平台设计与实现

    Institute of Scientific and Technical Information of China (English)

    杨瑞

    2011-01-01

    This paper presents the design and implementation of an SMS platform, and a scheme of system solution based on Bluetooth communication is put forward as well. This platform achieves remote sending/receiving and management of SMS by using a novel method of interactive Bluetooth communication between PC and Smartphone. Other additional functions are realised too. The completed platform has been tested operating well. Compared to traditional SMS platform solution, it has the features of strong compatibility, scalability and lower system cost, therefore has wide application prospect on the platform of Smartphone.%介绍短信平台的设计与实现,给出了基于蓝牙通信网络的系统解决方案,系统利用PC与Smartphone间蓝牙交互通信的全新方法实现SMS的远程收发和管理,还实现了其他附加功能.系统完成后经测试运行良好.与传统的短信平台方案相比具有兼容性好、可扩展性强和系统成本低等特点,在SmartPhone平台中具有广泛的应用前景.

  12. Research and design of the protection scheme on bluetooth location privacy%蓝牙位置隐私保护方案的研究与设计

    Institute of Scientific and Technical Information of China (English)

    郁滨; 张顺

    2011-01-01

    The attack mechanism of bluetooth location privacy and the disadvantages of the current protection scheme were analyzed and a model of hierarchical address was established. On the basis of the model, a protection scheme on bluetooth location privacy was designed. Compared with others, this scheme can not only resist eavesdroping, replay attack, frequency hop sequence attack, conversation address tracking attack, dictionary attack and man in the middle attack, but also need little computing and storage.%通过对蓝牙位置隐私攻击机制和现有保护方案不足的分析,建立了蓝牙地址分级模型,依据此模型设计了蓝牙位置隐私保护方案,与现有方案相比,该协议不仅可以抵抗针对蓝牙位置隐私的窃听攻击、重放攻击、跳频序列攻击、会话地址跟踪攻击、字典攻击和中间人攻击,同时具有较小的计算量和存储需求.

  13. 基于手机蓝牙接口的小车遥控系统%A Car Remote Control System Based On Bluetooth Interface Of Mobile Phone

    Institute of Scientific and Technical Information of China (English)

    谈敏; 刘高平; 陈红良

    2012-01-01

    本文介绍了一种基于手机蓝牙接口的小车遥控系统。该系统主要分为手机遥控模块、蓝牙收发模块、电机驱动模块三部分。文章首先介绍了系统硬件设计,然后分别阐述了手机软件与单片机软件的实现方法,最后给出了具体的测试结果。%This paper introduces a car remote control system based on the Bluetooth interface of mobile phone. The system consists of three parts, including one mobile phone remote control module, one Bluetooth transceiver module, and one motor drive module. This article first introduces the hardware design of the system, then respectively expounds the implementation methods of mobile phone software and MCU software, and finally gives the specific test results.

  14. Wearable Intelligent Environment Parameters Acquisition System Based on Bluetooth Technique%基于蓝牙技术的可穿戴式智能环境参数采集系统

    Institute of Scientific and Technical Information of China (English)

    孙广维; 杨小天

    2015-01-01

    提出了一种基于蓝牙技术的无线可穿戴式环境参数获取系统,其采用智能手持终端(例如手机),实现了将个人用户周边环境信息的实时采集,融合了可穿戴式传感器、物联网技术以及智能终端等技术。系统集成了多种传感器,可检测温湿度、光照、气压、PM2.5等。另外,该系统很容易通过增加传感器种类和数目实现扩展,还可以与其他系统通过广域网进行无线组网,实现一个大型环境参数监测无线传感器网络,将会在环境监测、天气、自然灾害预警方面得到广泛发展。%This paper presents a wearable environment parameters acquisition system based on Bluetooth technique, which achieves the individual user environment information acquisition by using intelligent handheld terminal ( such as a mobile phone) , showing the fu-sion of technologies of wearable sensors, network of things and intelligent terminal. The system with many sensors integrated can detect the temperature and humidity, light, pressure, PM2. 5, etc. In addition, the system is very easy to achieve expansion by adding types and numbers of sensors, also form wireless network with other systems through wide area network. The realization of a large-scale wire-less sensor network of environment parameters monitoring will be widely developed in environmental monitoring, weather and natural disaster prediction.

  15. 新兴的短距离无线通信技术——蓝牙技术%A New Short-Distance Radio Communication Technique-Bluetooth

    Institute of Scientific and Technical Information of China (English)

    王胜友; 陈咏恩

    2001-01-01

    论述了蓝牙系统的工作原理、组成及关键技术,并对牙牙技术的发展前景进行了展望。%This paper dissusses the wording principle ,composition and key technique of bluetooh system ,adn loods into the prospect of the development of bluetooth technique.

  16. 基于Android健康服务终端蓝牙传输软件的设计%The Design and Implementation of Bluetooth Software Based on Android Health Service Terminal

    Institute of Scientific and Technical Information of China (English)

    李黎国; 张辉; 程号

    2012-01-01

    在一款基于Android操作系统的健康服务终端设计基础上,介绍了一种基于Android的蓝牙应用程序的设计方法。通过分析蓝牙及Android操作系统,重点研究了在Android操作系统对蓝牙的支持,最后设计出了基于Android操作系统的蓝牙应用软件,运行测试,符合设计要求,具有一定应用性。%Based on the Android operating system in a health service terminal,this paper introduces a Bluetooth application programming method.On the basis of analyzing the Bluetooth and the Android operating system,we focus our research on operating system support of Bluetooth.Then,we design the Bluetooth application software based on the Android operating system.Practical tests show that the application software meets the design requirement and is of practical value.

  17. A wireless solution for greenhouse monitoring and control system based on ZigBee technology

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    With the rapid development of wireless technologies, it is possible for Chinese greenhouses to be equipped with wireless sensor networks due to their low-cost, simplicity and mobility. In the current study, we compared the advantages of ZigBee with other two similar wireless networking protocols, Wi-Fi and Bluetooth, and proposed a wireless solution for greenhouse monitoring and control system based on ZigBee technology. As an explorative application of ZigBee technology in Chinese greenhouse, it may promote Chinese protected agriculture.

  18. CSR:蓝牙技术十年有成芯片售出十亿有余%CSR:the Ten Years of Bluetooth

    Institute of Scientific and Technical Information of China (English)

    丛秋波

    2009-01-01

    许俊丰CSR公司亚洲副总裁"CSR售出蓝牙芯片已达十亿余块,目前,市场上约有60%的蓝牙产品采用了CSR的蓝牙芯片,特别是在蓝牙耳机中采用CSR的产品占到了80%。"蓝牙技术已诞生十周年,前不久,在蓝牙技术联盟(Bluetooth SIG)中国2008峰会上,《EDN China》记者独家采访了蓝牙技术联盟的重要成员CSR(Cambridge Silicon Radio)

  19. Implementación de una aplicación móvil de teledocencia en J2ME con tecnología Bluetooth

    OpenAIRE

    García Rubio, Francisco Javier

    2009-01-01

    La tecnología de comunicación inalámbrica Bluetooth ha adquirido en estos últimos años una presencia importante en la conexión de dispositivos de uso cotidiano (móviles, impresoras, manos libres, cámaras de fotos,…). Al permitir su interconexión de una manera sencilla ha supuesto una revolución esencial que se convertirá en indispensable en pocos años. En este proyecto se ha implementado una aplicación en J2ME (Java 2 Micro Edition), que aprovecha las posibilidades que nos brinda la tecnologí...

  20. 一种新的轻量化 Android蓝牙协议栈的设计与实现%The Design and Implementation of a New Lightweight Android Bluetooth Protocol Stack

    Institute of Scientific and Technical Information of China (English)

    李满玲; 周庆明

    2014-01-01

    In view of the predicaments of Android Bluetooth protocol stack of BlueZ architecture , this paper proposes the design of a lightweight Android Bluetooth protocol stack .On the premise of not altering the fundamen-tal Bluetooth protocol and according to the characteristics of Android system architecture , the integration of protocol stack dispersion code is implemented and the protocol stack code tailored , to realize better portability , optimized structure and improved performance .Finally, the experimental results have verified the feasibility and efficiency of the new protocol stack .%针对Android蓝牙协议栈BlueZ架构的不合理性,提出设计一种轻量化Android蓝牙协议栈。在不改变蓝牙基本协议的前提下,根据Android系统架构的特点,通过对协议栈分散代码的整合和对协议栈代码的裁剪,来达到系统更轻便、架构更合理、性能更优化的效果。最后,通过实验验证了新协议栈的可行性和有效性。

  1. 具有滤波功能的蓝牙微带天线设计%Design of blue-tooth microstrip antenna with filtering function

    Institute of Scientific and Technical Information of China (English)

    何云红; 李九生

    2011-01-01

    In order to suppress double-frequency interference on the wireless communication of 2. 4 GHz, a filtering antenna based on multi-layer structure was proposed, fabricated and measured. In frequency band from 2.4~2. 5 GHz, the signal could transit almost without attenuation. But, in frequency band from 4.8~ 6 GHz, the signal was restrained effectively. The interfering signals were attenuated greatly, and the quality of communication was improved. Both simulated and measured results showed that during the frequency band of 2.4~ 2. 5 GHz, the return loss and VSWR of proposed filtering antenna are less than - 16 dB and 1. 4 respectively. During the frequency band of 4. 8 ~ 6 GHz, the return loss and VSWR of proposed filtering antenna are larger than - 6.6 dB and 2. 7 respectively. The proposed blue-tooth microstrip antenna has good transmission characteristics and filtering capabilities, which meets the requirements of blue-tooth communications.%为了有效抑制双倍频对2.4 GHz无线通信干扰,采用滤波馈电网络与天线振子一体设计技术,设计一种具有滤波功能的多层结构天线,使天线在2.4~2.5 GHz时,信号可以几乎无衰减地通过;而在4.8~6 GHz频段,信号被抑制,对邻频干扰也有一定的抑制作用,使干扰信号在天线等前端设备受到较大衰减,从而改善了通信质量.仿真与测试结果表明,在2.4~2.5 GHz频段滤波天线回波损耗小于-16 dB,驻波比小于1.4;在4.8~6 GHz频段滤波天线回波损耗大于-6.6 dB,驻波比大于2.7.该蓝牙微带天线具有较好的传输特性和滤波功能,满足蓝牙通信传输特性需要.

  2. A mobile indoor positioning system based on iBeacon technology.

    Science.gov (United States)

    Lin, Xin-Yu; Ho, Te-Wei; Fang, Cheng-Chung; Yen, Zui-Shen; Yang, Bey-Jing; Lai, Feipei

    2015-01-01

    To increase the efficiency in the emergency room, the goal of this research is to implement a mobile-based indoor positioning system using mobile applications (APP) with the iBeacon solution based on the Bluetooth Low Energy (BLE) technology. We use the Received Signal Strength (RSS) based localization method to estimate the patients' locations. Our positioning algorithm achieves 97.22% (95% Confidence Interval = 95.90% - 98.55%) accuracy of classification. As the result, our mechanism is reliable enough to satisfy the need for medical staff to track the locations of their patients. PMID:26737407

  3. A paraeducator glove for counting disabled-child behaviors that incorporates a Bluetooth Low Energy wireless link to a smart phone.

    Science.gov (United States)

    Luan, Shiwei; Gude, Dana; Prakash, Punit; Warren, Steve

    2014-01-01

    Behavior tracking with severely disabled children can be a challenge, since dealing directly with a child's behavior is more immediately pressing than the need to record an event for tracking purposes. By the time a paraeducator (`para') is able to break away and record events, behavior counts can be forgotten. This paper presents a paraeducator glove design that can help to track behaviors with minimal distraction by allowing a paraeducator to touch their thumb to one of their other four fingers, where each finger represents a different behavior. Count data are packaged by a microcontroller board on the glove and then sent wirelessly to a smart phone via a Bluetooth Low Energy (BLE) link. A customized BLE profile was designed for this application to promote real-time recording. These data can be forwarded to a database for further analysis. This para glove design addresses basic needs of a wearable device that employs BLE, including local data collection, BLE data transmission, and remote data recording. More functional sensors can be added to this platform to support other wearable scenarios. PMID:25570079

  4. 面向移动终端的蓝牙网关设计与实现%Design and Implementation of Bluetooth Gateway for Mobile Terminal

    Institute of Scientific and Technical Information of China (English)

    张毅; 叶天翔; 马子超

    2012-01-01

    With the emergence of smart phones, the processing ability of hardware in smart phone is far exceeding the requirements of handheld devices. In this paper, the design project of a Bluetooth gateway for mobile terminal is proposed, which could implement the detection and control of Zig-Bee node with mobile terminal and substitute the original handheld device based on ZigBee protocol. And this project does not only extend the application of smart phone, but also plays a tremendous role on the popularization and development of ZigBee.%随着智能手机的出现,手机的硬件处理能力已经远远超过了手持设备的硬件需求.为此,提出一种面向移动终端的蓝牙网关设计方案,实现移动终端对ZigBee各节点的检测和控制,替代原有的ZigBee手持设备.它不仅扩展了移动电话的应用功能,而且对ZigBee的普及和应用起到巨大的推动作用.

  5. 基于J2ME的无线蓝牙技术应用研究%Research on Wireless Bluetooth Technology Application Based on J2ME

    Institute of Scientific and Technical Information of China (English)

    连飞

    2008-01-01

    Java开发平台的徽型J2ME和蓝牙技术给无线通讯提出了新的解决方案,在支持J2ME技术的Java手机上,结合JSR-82技术规范,建立了适合移动用户使用的地理信息数据采集系统,从而增强了智能手机的功能.本文以Java手机与蓝牙GPS传输数据为主要内容,设计和实现了一个原型系统并进行了实验.

  6. Application of Bluetooth Technology in the Measurement and Control System%蓝牙技术在测控系统中的应用研究

    Institute of Scientific and Technical Information of China (English)

    黄晓林

    2003-01-01

    介绍Bluetooth软硬件结构、功能和总线接口技术,对Bluetooth技术在测控应用中构成无线测控网络系统进行了研究,并设计了Bluetooth在线检测器/控制器(驱动器)的电路结构.Bluetooth技术使测控系统实现无线网络、移动数据交换等新功能.

  7. 由Bluetooth实现的多媒体无线连接PC%Multimedia Wireless Connection PC Based on Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    黄晓林; 梁玉红

    2004-01-01

    Bluetooth技术能在短距离内用无线接口代替有线电缆连接.文中介绍了Bluetooth技术的基本特性,讨论了基于Bluetooth技术的多媒体无线连接PC(Multimedia Wireless Connection PC,MWCPC)的系统结构、通信协议软件栈,并对MWCPC的主/从单元连接建立和多MWCPC的从单元资源共享等问题进行了研究,实测效果良好.

  8. Seamless Guidance System Combining GPS, BLE Beacon, and NFC Technologies

    Directory of Open Access Journals (Sweden)

    Rung-Shiang Cheng

    2016-01-01

    Full Text Available Users rely increasingly on Location-Based Services (LBS and automated navigation/guidance systems nowadays. However, while such services are easily implemented in outdoor environments using Global Positioning System (GPS technology, a requirement still exists for accurate localization and guidance schemes in indoor settings. Accordingly, the present study proposes a system based on GPS, Bluetooth Low Energy (BLE beacons, and Near Field Communication (NFC technology. Through establishing graphic information and the design of algorithm, this study develops a guidance system for indoors and outdoors on smart phones, wishing to give user perfect smart life through this system. The proposed system is implemented on a smart phone and evaluated on a student campus environment. The experimental results confirm the ability of the proposed app to switch automatically from an outdoor mode to an indoor mode and to guide the user to requested target destination via the shortest possible route.

  9. 智能手机蓝牙抄表设计方案%The design scheme of the intelligent mobile phone Bluetooth met er

    Institute of Scientific and Technical Information of China (English)

    尹庆国; 胡芳; 王秀兰

    2015-01-01

    At present,in our country's electricity,gas,heating,water supply industry,most still use manual meter reading mode wireless remote meter reading and hand-held meter reading machine.With the popularity of smart phones,mobile phone function and quality has been far stronger than the ordinary data acquisition device.The use of mobile phone reading software can easily realize the daily data acquisition and transcribing work.The realization of data timely upload and download and can use the mobile phone network.This paper provides a method for collecting heat meter smart phone Bluetooth meter,the method is implemented using a common Android smartphone on the heat meter reading and setting. Due to the smart phone platform, do not rely on hardware equipment,do not need customized products, only requires the addition of a Bluetooth serial module, using the same mobile phone operating system code can be generic,smart phone platform has good scalability in terms of programming tools, the method in function expansibility the smartphone platform has extensibility;strong in communication channel,in accordance with this method can build a good solution for data communication, etc..%目前,在我国的电力、燃气、热力、自来水行业,大部分仍然采用无线远程集抄和手持抄表机的人工抄表模式。随着智能手机的普及,手机的功能和质量已经远远强于一般的数据采集手持设备。使用手机抄表软件可以轻松实现日常数据采集抄录工作。并可以使用手机的网络实现数据的及时上传下载。本文提供一种用于热量表的智能手机蓝牙抄表的抄收方法,该方法实现使用一部普通的android智能手机实现对热量表的抄读和设置。由于采取通用的智能手机平台,不依赖硬件设备,不需要定制产品,只需要额外加一个蓝牙转串口模块、采用相同的手机操作系统程序代码就可以通用,智能手机平台在编程工具方面都

  10. Robotic inspection technology-process an toolbox

    Energy Technology Data Exchange (ETDEWEB)

    Hermes, Markus [ROSEN Group (United States). R and D Dept.

    2005-07-01

    Pipeline deterioration grows progressively with ultimate aging of pipeline systems (on-plot and cross country). This includes both, very localized corrosion as well as increasing failure probability due to fatigue cracking. Limiting regular inspecting activities to the 'scrapable' part of the pipelines only, will ultimately result into a pipeline system with questionable integrity. The confidence level in the integrity of these systems will drop below acceptance levels. Inspection of presently un-inspectable sections of the pipeline system becomes a must. This paper provides information on ROSEN's progress on the 'robotic inspection technology' project. The robotic inspection concept developed by ROSEN is based on a modular toolbox principle. This is mandatory. A universal 'all purpose' robot would not be reliable and efficient in resolving the postulated inspection task. A preparatory Quality Function Deployment (QFD) analysis is performed prior to the decision about the adequate robotic solution. This enhances the serviceability and efficiency of the provided technology. The word 'robotic' can be understood in its full meaning of Recognition - Strategy - Motion - Control. Cooperation of different individual systems with an established communication, e.g. utilizing Bluetooth technology, support the robustness of the ROSEN robotic inspection approach. Beside the navigation strategy, the inspection strategy is also part of the QFD process. Multiple inspection technologies combined on a single carrier or distributed across interacting container must be selected with a clear vision of the particular goal. (author)

  11. Temperature and Humidity Smart Monitoring System Design of Ranch Based on Bluetooth Low Energy and Android%基于 BLE 与 Android 的牧场温湿度智能监控系统设计

    Institute of Scientific and Technical Information of China (English)

    常敏; 梅晓敏; 崔永进; 王业生

    2015-01-01

    提出了一种基于低功耗蓝牙(BLE)与 Android 客户端的牧场温湿度远程实时监测控制系统。在嵌入式平台读取并处理温湿度数据,通过蓝牙与以太网之间信号相互转换,实现 Android 客户端与嵌入式平台相互通信。通过试验进一步验证,该系统可实时监测并自动控制环境温湿度值,同时可实现 Android 客户端对环境温湿度值的远程手动调节。%A remote real-time ranch’s temperature and humidity monitoring and control system is proposed based on Bluetooth Low Energy (BLE)and Android.An embedded system with BLE is adopted to read and process the temperature and humidity data.Signals are exchanged between Bluetooth and Internet,and the Android client and embedded platform can communicate with each other.Experimental results indicate that the proposed system can display and control the tem-perature and humidity values at the real time automatically,and realize the client adjusts the environment temperature and humidity value manually at the same time.

  12. Low power RF circuit design in standard CMOS technology

    CERN Document Server

    Alvarado, Unai; Adín, Iñigo

    2012-01-01

    Low Power Consumption is one of the critical issues in the performance of small battery-powered handheld devices. Mobile terminals feature an ever increasing number of wireless communication alternatives including GPS, Bluetooth, GSM, 3G, WiFi or DVB-H. Considering that the total power available for each terminal is limited by the relatively slow increase in battery performance expected in the near future, the need for efficient circuits is now critical. This book presents the basic techniques available to design low power RF CMOS analogue circuits. It gives circuit designers a complete guide of alternatives to optimize power consumption and explains the application of these rules in the most common RF building blocks: LNA, mixers and PLLs. It is set out using practical examples and offers a unique perspective as it targets designers working within the standard CMOS process and all the limitations inherent in these technologies.

  13. Disseny d'un sistema de test per electrodomèstics a través d'una passarel·la Bluetooth-Egobus (Hardware i aplicació per a mòbil)

    OpenAIRE

    Castells Soriano, Jordi; Oller Herranz, Jordi

    2011-01-01

    Català: L'objectiu principal d'aquest projecte és dissenyar una eina de test / diagnosis d'electrodomèstics, en el cas que aplica es treballarà amb una rentadora, i que pugui ser utilitzada tant pel S.A.T. (Servei d'Assistència Tècnica) com pel desenvolupament de futurs projectes per l'equip d'I+D de l'empresa. Caldrà doncs el disseny d'una plataforma estàndard hardware, vàlida tant per què l'utilitzi el S.A.T com I+D; aquesta plataforma és un gateway Egobus-Bluetooth. També serà necessària l...

  14. 基于Bluetooth和TD-SCDMA手机的无线局域网应用方案%Wireless Access Network Application Project Based on Bluetooth and TD-SCDMA Cellular phone

    Institute of Scientific and Technical Information of China (English)

    付仕明; 黄俊伟

    2007-01-01

    文中从接入点结合Bluetooth TD-SCDMA手机出发,设计了一种无线局域网应用方案.从功能上讲相当于通过Bluetooth建立无线微微网,并以TD-SCDMA手机为主机平台建立,充分利用了TD-SCDMA网络的高传输速率和高覆盖率,实现微微网内所有从设备都能通过TD-SCDMA手机实现高速无线上网.首先,文中论述了TD-SCDMA手机和Bluetooth技术,然后在这基础上提出了应用方案.最后,阐述了方案的关键技术.

  15. Communicating Cooperative Robots with Bluetooth

    DEFF Research Database (Denmark)

    Schiøler, Henrik; Son, L.T.; Madsen, Ole Brun;

    2001-01-01

    A generic architecture for system of cooperating communicating mobile robots is presented. An overall structure is defined from a modularity viewpoint, where a number of generic modules are identified; low level communication interface, network layer services such as initial and adaptive network...... structuring, routing and capacity management, overall behaviour which includes commitment to overall strategies as well as local behaviour like trajectory planning and navigation. Focus is kept on communication aspects and an example application of establishing a reliable wireless real-time communication...

  16. The Design of Remote Control Electric Car Control System Based on Bluetooth and 89C52 MCU%基于89C52单片机的遥控电动小车控制系统设计

    Institute of Scientific and Technical Information of China (English)

    刘星

    2013-01-01

    The remote control electric car system with 89C52 as the core controller, consists of main controller module, motor drive module, LCD module, keyboard module, ranging module, Bluetooth communication module, power module, etc. On this basis, an intelligent car control system is designed. This system adopts two stepper motors as the drive, uses various kinds of sensor to collect all kinds of information, and utilizes the 2.4 GHz Bluetooth communication module to achieve the forwarding, back-warding, returning, automatically turning and positioning of the car under the control of handhold wireless remote controller. The intelligent car system has high sensitivity and accuracy, and its manipulation is simple and convenient.%遥控电动小车系统以89C52单片机为核心控制器,包含了主控制器模块、电机驱动模块、液晶显示模块、键盘模块、测距模块、蓝牙通信模块、电源模块等。进而设计制作出一台具有自动运行的智能小车控制系统。本系统以两个步进电机作为驱动,通过各类传感器件来采集各类信息,通过2.4GHz蓝牙通信模块实现小车在手持无线遥控器的控制下前进、转向、倒退、小车精确转弯、自动定位等功能。智能小车系统具有很高的灵敏度和精确度,操控简单、便捷。

  17. 蓝牙4.1基站组网的停车场定位系统设计%Positioning System in Parking Lot Based on Bluetooth 4.1 Base Station Network

    Institute of Scientific and Technical Information of China (English)

    谢中啸; 韩圣伟

    2016-01-01

    In order to improve the efficiency of the modern parking lot and assist for parking and picking up the cars,a smart positioning system in parking lot based on Bluetooth 4.1 is proposed in this paper.The system takes RFID MCU CC2540 as the signal station,and the ARM Cortex-A8 MPU as the central control platform.The system achieves the car positioning in parking lot using the multiple Blue-tooth 4.1 signal stations network.And then it sends the positioning information to PC,the mobile phones and other devices through the WiFi module in control processor.The experimental results show that the system has high accuracy and low power consumption,which can be widely applied in many parking lots.%为了提高现代停车场效率,使车主停车取车更加便捷,本设计提出一种基于蓝牙4.1技术的停车场智能定位系统.本系统主要以CC2540射频单片机作为信号基站,ARM Cortex A8处理器为中央控制平台,通过多个蓝牙4.1基站组网实现对汽车的停车场定位,并将定位信息通过中央控制平台的WiFi模块传输到上位机、手机等终端设备.实地测试结果表明,该设计准确度较高、功率低,可用于各中小型停车场中.

  18. 应用于蓝牙/TD-LTE/WiMAX的多频段平面天线%Novel multi-frequency planar antenna in use for Bluetooth/TD-LTE/WiMAX

    Institute of Scientific and Technical Information of China (English)

    胡建明; 王倩茜; 杨雪松; 桂东东; 魏小明

    2015-01-01

    A novel planar monopole antenna with defected ground structure and multi-frequency characteristics was presented. The antenna had a simple structure which was fed by microstrip line and consisted of two inversed hook-shaped stubs to obtain WiMAX band and two inversed T-shaped stubs that could achieve the bands of Bluetooth, TD-LTE and downlink of X-band satellite communication systems. The experimental results show that the proposed antenna meets a bandwidth from 2.42 GHz to 2.78 GHz, 3.02 GHz to 3.62 GHz and 7.25 GHz to 7.88 GHz, which can cover Bluetooth, TD-LTE, WiMAX and downlink of X-band satellite communication systems. The antenna has a small overall size of 20 mm×30 mm. The antenna has a simple structure, small over size, and omni-directional radiation pattern, which makes it suitable for multi-band mobile wireless device applications.%提出了一种具有新颖缺陷地结构的多频段新型平面天线,该天线采用微带馈电方式进行馈电,改进的接地板通过延伸两段倒T字形枝节,得到了蓝牙、TD-LTE和X波段卫星通信频段;WiMAX通信频段则通过左右对称的倒钩形结构辐射贴片获得。该天线实际测量带宽为2.42~2.78 GHz、3.02~3.62 GHz和7.25~7.88 GHz,能完整覆盖蓝牙、TD-LTE、WiMAX和X波段卫星通信下行频段,尺寸为20 mm×30 mm。天线结构简单、尺寸小及全向性辐射特性表明该天线能很好地满足便携式多频段移动设备的需求。

  19. PRESENTATION AND ANALYSIS OF A NEW TECHNOLOGY FOR LOW-POWER WIRELESS SENSOR NETWORK

    Directory of Open Access Journals (Sweden)

    Sabri Khssibi

    2013-01-01

    Full Text Available The tremendous and rapid development in sensors technology allowed their application in various fields requiring monitoring, such as, transportations, rare species surveillance, agriculture, military activities, medical field, etc. Due to their intrinsic constraints and limitations, several dedicated MAC protocols have been designed for wireless sensor networks and whose main objectives are bandwidth optimization while keeping very low energy consumption. One of the newest proposals is ANT which is emerging as a widely used MAC protocol for wellness and sports sensor devices. In this paper, we give a comprehensive overview of ANT/ANT+ and a comparison between ANT and two established standards: Bluetooth Low Energy (BLE and 802.15.4/4a. We detail also some practical experiments we conducted to evaluate some characteristics of ANT.

  20. Indoor Positioning: Opportunities and implementation strategies of Bluetooth Low Energy . GI_Forum|GI_Forum 2016, Volume 1 – open:spatial:interfaces|

    OpenAIRE

    Feil, Christian

    2016-01-01

    We spend 90% of our time indoors. Buildings became larger and more complex (international airports, subway stations, shopping malls or hospitals for example). Our behaviour has changed. Given the possibilities of ubiquitous technology, we are used to finding out what our position is whenever we want – so far almost exclusively outdoors, however. We have little data on where and how people move indoors. There are various technologies for Indoor Positioning, but none of them dominates the marke...

  1. 高校选课制下蓝牙考勤管理系统的研究与实现%Research in Blue-tooth Attendance Management System under Course-selecting System and its Realization

    Institute of Scientific and Technical Information of China (English)

    邰伟鹏; 徐宏

    2012-01-01

    Under the condition of course-selecting system,university,based on campus network platform,teaching administration system,message platform,multi-media classroom and the blue-tooth attendance management platform,promotes teachers' efficiency in checking attendance results and it is also favorable for both university and parents to know students so as to improve teaching quality.%高校在选课制条件下利用校园网络平台、教务管理系统、短信推送平台、多媒体教室和学生手机组建基于蓝牙的课堂考勤管理系统,有利于提高教师考勤成效和学生到课率,有利于学校和家长实时掌握学生上课情况,以提高教学质量。

  2. 4G :An Advancement in Existing Wireless Technology

    Directory of Open Access Journals (Sweden)

    Bahl, S.

    2015-08-01

    Full Text Available 4G is one of the most important wireless technology that enhances our personal environment, either work or private, by means of networking or a variety of personal and wearable devices within the space and with the outside world. It refers to the fourth generation of wireless standards. 4G includes several types of broadband wireless access communication systems. 4G seems to be the solution for growing necessity of requirements of wireless communication. This paper represents an overall view of the 4G features, advantages, applications and integration of mobile communication. It is a collection of wireless networks. Its high rate and high accuracy has increased its use and the evolution. 4G systems are become a platform of providing increased bandwidth and more secure applications. This paper also reviews about the uses of 4G in different network architectures. It has become an emerging technology in GSM(Global System for Mobile Communications, wireless LAN (Local Area Network and in Bluetooth. It is a scalable wireless platform for constructing alternative and complementary broadband networks

  3. ``Low Power Wireless Technologies: An Approach to Medical Applications''

    Science.gov (United States)

    Bellido O., Francisco J.; González R., Miguel; Moreno M., Antonio; de La Cruz F, José Luis

    Wireless communication supposed a great both -quantitative and qualitative, jump in the management of the information, allowing the access and interchange of it without the need of a physical cable connection. The wireless transmission of voice and information has remained in constant evolution, arising new standards like BluetoothTM, WibreeTM or ZigbeeTM developed under the IEEE 802.15 norm. These newest wireless technologies are oriented to systems of communication of short-medium distance and optimized for a low cost and minor consume, becoming recognized as a flexible and reliable medium for data communications across a broad range of applications due to the potential that the wireless networks presents to operate in demanding environments providing clear advantages in cost, size, power, flexibility, and distributed intelligence. About the medical applications, the remote health or telecare (also called eHealth) is getting a bigger place into the manufacturers and medical companies, in order to incorporate products for assisted living and remote monitoring of health parameteres. At this point, the IEEE 1073, Personal Health Devices Working Group, stablish the framework for these kind of applications. Particularly, the 1073.3.X describes the physical and transport layers, where the new ultra low power short range wireless technologies can play a big role, providing solutions that allow the design of products which are particularly appropriate for monitor people’s health with interoperability requirements.

  4. Revolution in Technology -‘Blessing or Misfortune’ for University Engineering Students

    Directory of Open Access Journals (Sweden)

    Er. Karuna Puri

    2016-03-01

    Full Text Available Advancement in technology no doubt have made human’s life comfortable and convenient. But this revolution in technology at one end has proved to be a blessing to humans and at other end has become a misfortune for university engineering students in form of ‘code-plagiarism’. Students are often caught in incidences of copying software codes from internet which are given to them as lab assignment in programming labs. Student’s take undue advantage of this blessings that technology has provided to humans to avoid tireless and time-consuming manual efforts just for sake of convenience. But Student’s forget in this stage of life only rigorous practice would make them perfect and would help them develop their own coding logic. With increase in innovations and inventions that technology is giving every day, it gives opportunities to socially inspired students to hide beneath different technological advancements. They hide their act of copying software codes in programming labs of universities by using different technological innovations like Bluetooth, What-Sapp, Hike, Facebook, other instant messengers and social networks. This prevents students from developing logical and analytical skills. Universities are becoming more concerned in this regard. To cope up with such challenges in our education system the undertaken research provides an opportunities to universities to integrate with their norms a ‘code-plagiarism evaluation cum prevention model’. This model works will not only provide opportunity to faculty to smartly detect hidden activities of students of code-plagiarism in labs but will also suggest suitable prevention measures to overcome curse of code-plagiarism in programming labs. Digital era university students may opt code-plagiarism and hiding at the same time, using smart technologies such as Hike, Bluetooth etc. It is easily feasible for faculty members to trace these behavior of students using SCEPM model. SCEPM is a

  5. The Anti-leak Password Management System based on Bluetooth and NFC%基于蓝牙和NFC的防泄露密码使用管理系统

    Institute of Scientific and Technical Information of China (English)

    严志涛; 徐梦霖; 吴潇岛; 赵辉

    2013-01-01

    With the widespread use of passwords, users have to remember a large number of complicated passwords. It is more and more dififcult to remember and enter them. This paper proposes a design of the anti-leak password management system based on Bluetooth and NFC in order to help users remember and enter numerous passwords. This system uses NFC authentication, key distribution mechanism similar to KDC (Key Distribution Center), loss report mechanism and so on to guarantee password security. The test results indicate that this system can help users remember and enter a large number of passwords effectively, and the security mechanism such as loss report mechanism can protect passwords from being leaked.%随着密码使用越来越广泛,用户需要记忆大量复杂的密码来保证安全,密码的记忆和输入变得越来越困难。为此,文章提出了一种基于蓝牙NFC的防泄露密码使用管理系统的设计,帮助用户记忆大量密码以及方便输入,并采用NFC(近场通讯)身份验证、类似于KDC(密钥分配中心)的密钥分配机制、挂失机制等安全机制来保证用户的密码安全。测试结果表明该系统能有效地帮助用户记忆大量密码以及快捷地进行密码的输入,并用挂失等安全机制有效地保证用户的密码不被泄露。

  6. Fusion of smart, multimedia and computer gaming technologies research, systems and perspectives

    CERN Document Server

    Favorskaya, Margarita; Jain, Lakhmi; Howlett, Robert

    2015-01-01

      This monograph book is focused on the recent advances in smart, multimedia and computer gaming technologies. The Contributions include:   ·         Smart Gamification and Smart Serious Games. ·         Fusion of secure IPsec-based Virtual Private Network, mobile computing and rich multimedia technology. ·         Teaching and Promoting Smart Internet of Things Solutions Using the Serious-game Approach. ·         Evaluation of Student Knowledge using an e-Learning Framework. ·         The iTEC Eduteka. ·         3D Virtual Worlds as a Fusion of Immersing, Visualizing, Recording, and Replaying Technologies. ·         Fusion of multimedia and mobile technology in audioguides for Museums and Exhibitions: from Bluetooth Push to Web Pull. The book is directed to researchers, students and software developers working in the areas of education and information technologies.  

  7. Real Time Health Monitoring Using GPRS Technology

    Directory of Open Access Journals (Sweden)

    Shubhangi M. Verulkar

    2012-06-01

    Full Text Available Advances in sensor technology, personal mobile devices, andwireless broadband communications are enabling thedevelopment of an integrated personal mobile healthmonitoring system that can provide patients with a usefultool to assess their own health and manage their personalhealth information anytime and anywhere. Personal mobiledevices, such as PDAs and mobile phones, are becomingmore powerful integrated information management tools andplay a major role in many people's lives. Here I focus ondesigning a Mobile health-monitoring system for people whostay alone at home or suffering from Heart Disease. Thissystem presents a complete unified and mobile platformbased connectivity solution for unobtrusive healthmonitoring. Developing a hardware which will sense heartrate and temperature of a patient, using Bluetooth modem allinformation lively transmitted to smart phone, from smartphone all information transmitted to server using GPRS. Atserver the received data compared with the standardthreshold minimum and maximum value. The normal rangeof heart rate is 60 to 135 and the temperature of the patient issaid to be normal above 95^F and below 104^F. If at all therate increases above 145 or decreases below 55,it may befatal and if it crossed this threshold limit then SMS will besent to the relative of patient and Doctors along withmeasured values.The build-in GPS further provides the position informationof the monitored person. The remote server not only collectsphysiological measurements but also tracks the position ofthe monitored person in real time.For transmitting data from Smartphone to the server usingGPRS, here we need to create a website on data will becontinuously transmitted from Smartphone to the website andfrom website data will be downloaded continuously on theserver.Thus the system helps in tracking down the patient withoutgetting the patient into any sort of communication. Unduemishaps can be avoided within the golden hours after apatient

  8. Zigbee Technology and its Application in Wireless Home Automation Systems: A Survey [

    Directory of Open Access Journals (Sweden)

    Thoraya Obaid

    2014-07-01

    Full Text Available Wireless home automation systems have drawn conside rable attentions of the researchers for more than a decade. The major technologies used to implement th ese systems include Z-Wave, Insteon, Wavenis, Bluetooth, WiFi, and ZigBee. Among these technologi es the ZigBee based systems have become very popula r because of its low cost and low power consumption. In this paper ZigBee based wireless home automation systems have been addressed. There are two main par ts of this paper. In the first part a brief introdu ction of the ZigBee technology has been presented and in the second part a survey work on the ZigBee based wire less home automation system has been presented. The perf ormances of the ZigBee based systems have also been compared with those of other competing technologies based systems. In addition some future opportuniti es and challenges of the ZigBee based systems have bee n listed in this paper.

  9. The Design of WORKER'S Behavior Analysis Method in Workplace Using Indoor Positioning Technology

    Science.gov (United States)

    Tabata, K.; Konno, H.; Nakajima, M.

    2016-06-01

    This study presents a method for analyzing workers' behavior using indoor positioning technology and field test in the workplace. Recently, various indoor positioning methods, such as Wi-Fi, Bluetooth low energy (BLE), visible light communication, Japan's indoor messaging system, ultra-wide band (UWB), and pedestrian dead reckoning (PDR), have been investigated. The development of these technologies allows tracking of movement of both people and/or goods in indoor spaces, people and/or goods behavior analysis is expected as one of the key technologies for operation optimization. However, when we use these technologies for human tracking, there are some problem as follows. 1) Many cases need to use dedicated facilities (e.g. UWB). 2) When we use smartphone as sensing device, battery depletion is one of the big problem (especially using PDR). 3) the accuracy is instability for tracking (e.g. Wi-Fi). Based on these matters, in this study we designed and developed an indoor positioning system using BLE positioning. And, we adopted smartphone for business use as sensing device, developed a smartphone application runs on android OS. Moreover, we conducted the field test of developed system at Itoki Corporation's ITOKI Tokyo Innovation Center, SYNQA, office (Tokyo, Japan). Over 40 workers participated in this field test, and worker tracking log data were collected for 6 weeks. We analyzed the characteristics of the workers' behavior using this log data as a prototyping.

  10. 基于低功耗蓝牙技术的室内定位应用研究%The Application Research of Indoor Positioning Based on Low-power Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    刘明伟; 刘太君; 叶焱; 吴丽

    2015-01-01

    针对GPS定位技术在室内无法获取精确位置信息的问题,本文提出了一种基于低功耗蓝牙技术的室内定位方案.该系统方案中,ibeacon基站由低功耗蓝牙4.0模块组成.在需要定位的室内均匀部署一定数量的ibeacon基站,每个ibeacon基站可以自动创建一个信号区域并周期性的向外广播出自己特有的与位置有关的UUID(Universally Unique Identifier)号和RSSI(Received Signal Strength Indicator)值,当蓝牙终端设备进入该信号区域就会接收到ibeacon基站广播出的UUID号和RSSI值,然后通过改进型环形定位算法就可以对待测点进行精确的定位.实验结果表明,该系统方案的定位精度在2m以内,可以满足大多数室内定位的要求.

  11. 基于蓝牙技术的光学测量机无线靶标控制%The Drone Control of VCMM Which is Based on Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    邾继贵; 唐大林; 白洋; 李艳军; 张国全

    2005-01-01

    介绍一种利用蓝牙无线通信方式解决光学坐标测量机靶标控制的方法.该方法利用蓝牙内嵌式模块以及蓝矛USB适配器互相配合,实现在计算机与光学坐标测量机靶标之间的无线通信,解决了光学坐标测量机在线测量及现场抗干扰问题.并且这种方法不需要开发蓝牙底层协议,应用起来方便快捷,也可广泛应用在其他无线串行通信方面.

  12. Research on Route Protocol of Ad hoc Network Based on Bluetooth Technology%基于蓝牙技术的Ad hoc自组网络路由协议

    Institute of Scientific and Technical Information of China (English)

    王曙; 刘永平

    2004-01-01

    基于蓝牙技术的Ad hoc网络是现阶段实现移动Ad hoc网络的便捷方案之一.讨论了基于蓝牙技术的移动Ad hoc网络设计实现过程中涉及的一些主要技术,并详细分析了蓝牙Ad hoc网络的路由结构设计、调度与性能.

  13. 基于蓝牙低功耗技术的低中频接收器系统设计%The Low IF Receiver System Design Based on Bluetooth Low Energy Technology

    Institute of Scientific and Technical Information of China (English)

    堵会晓; 高同辉

    2015-01-01

    介绍了一种遵循蓝牙低功耗技术标准的低中频接收器的完整的系统设计方法,讨论了每个模块的设计,以使总体设计达到最先进的低功耗标准.最后,由选定的系统结构确定ADC的参数要求.本设计可以为低功耗复杂低中频接收器设计提供参考,系统能够达到最小信噪比和更佳动态范围的要求.

  14. 基于Bluetooth技术的液压在线故障监测诊断系统%Hydraulic System on-line Test Fault Diagnosis System Based on Bluetooth Technology

    Institute of Scientific and Technical Information of China (English)

    梁玉红

    2008-01-01

    介绍了基于Bluetooth技术的液压在线故障监测诊断系统的设计,给出了系统组成和软件设计.液压在线监测故障诊断系统采用Bluetooth无线接口代替现场有线电缆,提高了数据通信的抗干扰性能.阐述了实现Bluetooth技术协议的整体框架、主要工作流程和电路接口.实验表明:该系统提高了液压系统故障推理的正确性和推理速度.

  15. Intell igent System of Monitoring the Number of Students in Classroom Based on Bluetooth 4.0%基于蓝牙4.0的教室人数监测智能系统设计

    Institute of Scientific and Technical Information of China (English)

    郑大伟; 魏智鹏; 魏雪萍

    2015-01-01

    In order to monitor the number of people in classroom and assist for the education and management affaires of university,a smart system for statistics based on Bluetooth 4.0 is proposed in this paper.The design takes RFID MCU CC2540 as the core,and col-lects the data through controlling the infrared sensor and the temperature and humidity sensor.Then the collected information is trans-mitted to the terminal equipments such as the remote host or cellphone through WiFi.Besides,personal communication devices can be used to check the information in classroom.Experimental results show that the system is reliability,low power consumption and high ac-curacy,which can be widely applied in daily management activity for university administration.%为了能实时监测教室人数,方便各大高校的日常教学及管理活动,提出了一种基于蓝牙4.0技术、用于统计教室人数的智能系统。本系统以基于蓝牙低功耗技术的 CC2540射频单片机为核心,通过控制红外光电传感器和温湿度传感器进行数据的采集,并通过 WiFi 模块将采集到的数据传输给远程上位机、手机等终端设备,也可以通过 WiFi 模块查询教室的信息。实际测试结果表明,该设计可靠性高、功耗低、准确度高,可广泛应用于各大高校的日常教学活动中。

  16. 基于低功耗蓝牙和WebSocket的物联网数据网关%Data Gateway B ased on Low Energy Bluetooth and WebSocket for Internet of Things

    Institute of Scientific and Technical Information of China (English)

    谢佳柏; 陈贤祥; 胡欣宇; 方震; 任仁; 夏善红

    2016-01-01

    为提高低功耗蓝牙( BLE)物联网对移动终端如手机、平板电脑和笔记本电脑的兼容性,文中利用NI myRIO设备和CC2540 BLE适配器设计了一款基于BLE和WebSocket 的数据网关,其软件架构包括WebSocket 网络层、主线程和BLE驱动,能同时连接多个BLE传感器节点并与移动终端通过WebSocket 进行数据交互,用户可在移动终端的浏览器页面控制传感器的工作状态并实时接收传感器采集的最新数据。测试结果表明该网关可实时接收3个BLE振动传感器节点的采样数据,并可远程控制传感器的采样通道、采样率等工作参数。%To improve the compatibility of BluetoothL-ow-Energy(BLE)-based Internet of Things with mobile terminals such as mobile phones , tablet computers and laptop computers, a NI myRIO device and a CC 2540 BLE adapter were used to design a data gateway based on BLE and WebSocket , and its software architecture was made up of a WebSocket network layer , a main thread and a BLE driver.The data gateway can keep multiple connections with BLE sensor nodes and exchange data through Web -Socket with mobile terminals ,thus users can control the working conditions and receive the latest data of the sensors real -time via browser pages of the mobile terminals.The test results show that the data gateway can receive the sampling data of three BLE vibra -tion sensor nodes real-time and control the working parameters such as sampling channels and sampling rate of the sensors remote -ly.

  17. 数字医院物联网RTLS技术的比较与选型%The Selection and Comparison of loT RTLS Technology in the Digital Hospital

    Institute of Scientific and Technical Information of China (English)

    谢祥璃

    2012-01-01

    The IoT technology has great potential application in the health care field, the article describes the comparison and selection about Bluetooth, Wi-Fi, ZigBee, UWB four IoT technologies used in the digital hospital for medical asset management, personnel monitoring and guardianship.%物联网技术在医疗领域的应用潜力巨大,本文将就BIuetooth、Wi-Fi、ZigBee、UWB四种物联网技术在医院范围的医疗资产管理、人员监护方面的RTLS应用进行一些技术比较和选型方面的探讨。

  18. Assistive Technology

    Science.gov (United States)

    ... Page Resize Text Printer Friendly Online Chat Assistive Technology Assistive technology (AT) is any service or tool that helps ... be difficult or impossible. For older adults, such technology may be a walker to improve mobility or ...

  19. Living Technology

    DEFF Research Database (Denmark)

    2010-01-01

    our lives. The phrase 'living technology' was coined to refer to technology that is alive as well as technology that is useful because it shares the fundamental properties of living systems. In particular, the invention of this phrase was called for to describe the trend of our technology becoming...... increasingly life-like or literally alive. Still, the phrase has different interpretations depending on how one views what life is. This book presents nineteen perspectives on living technology. Taken together, the interviews convey the collective wisdom on living technology's power and promise, as well as its...

  20. With New Standard and RD Strategy, CSR Commits Bringing Bluetooth Return to Glory! nterview with the CEO and Vice President of Asia Region, CSR%新规格、新思维 CSR引领蓝牙重返荣耀专访CSR CEO John Hodgson及亚洲副总裁Matthew Philips

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ 速度更快的蓝牙来了! 在Bluetooth SIG内协商了两年多之后,最新版的蓝牙2.0规格终于在去年尘埃落定.这对于蓝牙产业而言,无疑是一个令人振奋的好消息,因为新增加的EDR规格,不仅让蓝牙的频宽从原来的1Mbps提升到3Mbps,而且蓝芽2.0与先前的蓝牙1.x版本兼容,更让系统整合厂商在采用蓝牙2.0时减少了许多疑虑.

  1. Motorway Network Simulation Using Bluetooth Data

    Directory of Open Access Journals (Sweden)

    Karakikes Ioannis

    2016-09-01

    Full Text Available This paper describes a systematic calibration process of a Vissim model, based on data derived from BT detectors. It also provides instructions how to calibrate and validate a highway network model based upon a case study and establishes an example for practitioners that are interested in designing highway networks with micro simulation tools. Within this case study, a 94,5 % proper calibration to all segments was achieved First, an overview of the systematic calibration approach that will be followed is presented. A description of the given datasets follows. Finally, model’s systematic calibration and validation based on BT data from segments under free flow conditions is thoroughly explained. The delivered calibrated Vissim model acts as a test bed, which in combination with other analysis tools can be used for potential future exploitation regarding transportation related purposes.

  2. Technology Tiers

    DEFF Research Database (Denmark)

    Karlsson, Christer

    2015-01-01

    A technology tier is a level in a product system: final product, system, subsystem, component, or part. As a concept, it contrasts traditional “vertical” special technologies (for example, mechanics and electronics) and focuses “horizontal” feature technologies such as product characteristics...

  3. Seven Deadliest Wireless Technologies Attacks

    CERN Document Server

    Haines, Brad

    2010-01-01

    How can an information security professional keep up with all of the hacks, attacks, and exploits? One way to find out what the worst of the worst are is to read the seven books in our Seven Deadliest Attacks Series. Not only do we let you in on the anatomy of these attacks but we also tell you how to get rid of them and how to defend against them in the future. Countermeasures are detailed so that you can fight against similar attacks as they evolve. Attacks featured in this book include:Bluetooth AttacksCredit Card, Access Card, and Passport AttacksBad Encryption

  4. Healthcare technology and technology assessment

    OpenAIRE

    Herndon, James H.; Hwang, Raymond; Bozic, K. H.

    2007-01-01

    New technology is one of the primary drivers for increased healthcare costs in the United States. Both physician and industry play important roles in the development, adoption, utilization and choice of new technologies. The Federal Drug Administration regulates new drugs and new medical devices, but healthcare technology assessment remains limited. Healthcare technology assessment originated in federal agencies; today it is decentralized with increasing private sector efforts. Innovation is ...

  5. Technology Lecturer Turned Technology Teacher

    Science.gov (United States)

    Lee, Kerry

    2009-01-01

    This case study outlines a program developed by a group of 6 teachers' college lecturers who volunteered to provide a technology program to year 7 & 8 children (11- and 12-year-olds) for a year. This involved teaching technology once a week. As technology education was a new curriculum area when first introduced to the college, few lecturers had…

  6. Technology '90

    International Nuclear Information System (INIS)

    The US Department of Energy (DOE) laboratories have a long history of excellence in performing research and development in a number of areas, including the basic sciences, applied-energy technology, and weapons-related technology. Although technology transfer has always been an element of DOE and laboratory activities, it has received increasing emphasis in recent years as US industrial competitiveness has eroded and efforts have increased to better utilize the research and development resources the laboratories provide. This document, Technology '90, is the latest in a series that is intended to communicate some of the many opportunities available for US industry and universities to work with the DOE and its laboratories in the vital activity of improving technology transfer to meet national needs. Technology '90 is divided into three sections: Overview, Technologies, and Laboratories. The Overview section describes the activities and accomplishments of the DOE research and development program offices. The Technologies section provides descriptions of new technologies developed at the DOE laboratories. The Laboratories section presents information on the missions, programs, and facilities of each laboratory, along with a name and telephone number of a technology transfer contact for additional information. Separate papers were prepared for appropriate sections of this report

  7. Sensemaking technologies

    DEFF Research Database (Denmark)

    Madsen, Charlotte Øland

    Research scope: The scope of the project is to study technological implementation processes by using Weick's sensemaking concept (Weick, 1995). The purpose of using a social constructivist approach to investigate technological implementation processes is to find out how new technologies transform...... patterns of social action and interaction in organisations (Barley 1986; 1990, Orlikowski 2000). Current research in the field shows that new technologies affect organisational routines/structures/social relationships/power relations/dependencies and alter organisational roles (Barley 1986; 1990, Burkhardt......, Orlikowski 2000). Viewing the use of technology as a process of enactment opens up for investigating the social processes of interpreting new technology into the organisation (Orlikowski 2000). The scope of the PhD project will therefore be to gain a deeper understanding of how the enactment of new...

  8. Technological Tyranny

    Science.gov (United States)

    Greenwood, Dick

    1984-08-01

    It is implicitly assumed by those who create, develop, control and deploy new technology, as well as by society at-large, that technological innovation always represents progress. Such an unchallenged assumption precludes an examination and evaluation of the interrelationships and impact the development and use of technology have on larger public policy matters, such as preservation of democratic values, national security and military policies, employment, income and tax policies, foreign policy and the accountability of private corporate entities to society. This brief challenges those assumptions and calls for social control of technology.

  9. Technology Catalogue

    International Nuclear Information System (INIS)

    The Department of Energy's Office of Environmental Restoration and Waste Management (EM) is responsible for remediating its contaminated sites and managing its waste inventory in a safe and efficient manner. EM's Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste management programs within EM's Office of Environmental Restoration and Office of Waste Management. The purpose of the Technology Catalogue is to provide performance data on OTD-developed technologies to scientists and engineers assessing and recommending technical solutions within the Department's clean-up and waste management programs, as well as to industry, other federal and state agencies, and the academic community. OTD's applied research and demonstration activities are conducted in programs referred to as Integrated Demonstrations (IDs) and Integrated Programs (IPs). The IDs test and evaluate.systems, consisting of coupled technologies, at specific sites to address generic problems, such as the sensing, treatment, and disposal of buried waste containers. The IPs support applied research activities in specific applications areas, such as in situ remediation, efficient separations processes, and site characterization. The Technology Catalogue is a means for communicating the status. of the development of these innovative technologies. The FY93 Technology Catalogue features technologies successfully demonstrated in the field through IDs and sufficiently mature to be used in the near-term. Technologies from the following IDs are featured in the FY93 Technology Catalogue: Buried Waste ID (Idaho National Engineering Laboratory, Idaho); Mixed Waste Landfill ID (Sandia National Laboratories, New Mexico); Underground Storage Tank ID (Hanford, Washington); Volatile organic compound (VOC) Arid ID (Richland, Washington); and VOC Non-Arid ID (Savannah River Site, South Carolina)

  10. Thermally activated technologies: Technology Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2003-05-01

    The purpose of this Technology Roadmap is to outline a set of actions for government and industry to develop thermally activated technologies for converting America’s wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. Fuel flexibility is important. The actions also cover thermally activated technologies that use fossil fuels, biomass, and ultimately hydrogen, along with waste heat.

  11. Technological Advancements

    Science.gov (United States)

    Kennedy, Mike

    2010-01-01

    The influx of technology has brought significant improvements to school facilities. Many of those advancements can be found in classrooms, but when students head down the hall to use the washrooms, they are likely to find a host of technological innovations that have improved conditions in that part of the building. This article describes modern…

  12. Maritime Technology

    DEFF Research Database (Denmark)

    Sørensen, Herman

    1997-01-01

    Elementary introduction to the subject "Maritime Technology".The contents include drawings, sketches and references in English without any supplementary text.......Elementary introduction to the subject "Maritime Technology".The contents include drawings, sketches and references in English without any supplementary text....

  13. Radiation Technology

    International Nuclear Information System (INIS)

    The conference was organized to evaluate the application directions of radiation technology in Vietnam and to utilize the Irradiation Centre in Hanoi with the Co-60 source of 110 kCi. The investigation and study of technico-economic feasibility for technology development to various items of food and non-food objects was reported. (N.H.A)

  14. Lasers technology

    International Nuclear Information System (INIS)

    The Lasers Technology Program of IPEN is committed to the development of new lasers based on the research of optical materials and new technologies, as well to laser applications in several areas: Nuclear, Medicine, Dentistry, Industry, Environment and Advanced Research. The Program is basically divided into two main areas: Material and Laser Development and Laser Applications

  15. Technology collaboration

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, Jacob [Halliburton (Brazil)

    2011-07-01

    The aim of this paper is to present Halliburton's Brazilian technology center. Halliburton has technology centers in the United States, Saudi Arabia, India, Singapore and Brazil, all of which aim at delivering accelerated innovation in the oil sector. The technology centers engage in research and development activities with the help of various universities and in collaboration with the customer or supplier. The Halliburton Brazil technology center provides its customers with timely research and development solutions for enhancing recovery and mitigating reservoir uncertainty; they are specialized in finding solutions for pre- and post-salt carbonate drilling and in the enhancement of production from mature fields. This presentation showcased the work carried out by the Halliburton Brazil technology center to help customers develop their deepwater field activities.

  16. Sensemaking technology

    DEFF Research Database (Denmark)

    Madsen, Charlotte Øland

    understanding of the cognitive competencies and barriers towards implementing new technology in organisations. The research will therefore concentrate on researching the development process in the organisation's perception of the external environmental elements of customers, suppliers, competitors, internal...... and external technology and legislation and the internal environmental elements of structure, power relations and political arenas. All of these variables have influence on which/how technologies are implemented thus creating different outcomes all depending on the social dynamics that are triggered by changes......Research objective: The object of the LOK research project is to gain a better understanding of the technological strategic processes in organisations by using the concept/metaphor of sensemaking. The project will investigate the technological strategies in organisations in order to gain a deeper...

  17. Exposure caused by wireless technologies used for short-range indoor communication in homes and offices

    International Nuclear Information System (INIS)

    In order to estimate typical radio frequency exposures from indoor used wireless communication technologies applied in homes and offices, WLAN, Bluetooth and Digital Enhanced Cordless Telecommunications systems, as well as baby surveillance devices and wireless headphones for indoor usage, have been investigated by measurements and numerical computations. Based on optimised measurement methods, field distributions and resulting exposure were assessed on selected products and real exposure scenarios. Additionally, generic scenarios have been investigated on the basis of numerical computations. The obtained results demonstrate that under usual conditions the resulting spatially (over body dimensions) averaged and 6-min time-averaged exposure for persons in the radio frequency fields of the considered applications is below ∼0.1% of the reference level for power density according to the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines published in 1998. Spatial and temporal peak values can be considerably higher by 2-3 orders of magnitude. In case of some transmitting devices operated in close proximity to the body (e.g. WLAN transmitters), local exposure can reach the same order of magnitude as the basic restriction; however, none of the devices considered in this study exceeded the limits according to the ICNIRP guidelines. (authors)

  18. NFC like wireless technology for monitoring purposes in scientific/industrial facilities

    International Nuclear Information System (INIS)

    Wireless technologies are becoming more and more used in large industrial and scientific facilities like particle accelerators for facilitating the monitoring and indeed sensing in these kind of large environments. Cabled equipment means little flexibility in placement and is very expensive in both money and effort whenever reorganization or new installation is needed. So, when cabling is not really needed for performance reasons wireless monitoring and control is a good option, due to the speed of implementation. There are several wireless flavors to choose, as Bluetooth, Zigbee, WiFi, etc. depending on the requirements of each specific application. In this work a wireless monitoring system for EPICS (Experimental and Industrial Control System) is presented. The desired control system variables are acquired over the network and published in a mobile device, allowing the operator to check process variables everywhere the signal spreads. In this approach, a Python based server will be continuously getting EPICS Process Variables via Channel Access protocol and sending them through a WiFi standard 802.11 network using ICE middle-ware. ICE is a tool-kit oriented to build distributed applications. Finally, the mobile device will read the data and show it to the operator. The security of the communication can be improved by means of a weak wireless signal, following the same idea as in Near Field Communication (NFC), but for more large distances. With this approach, local monitoring and control applications, as for example a vacuum control system for several pumps, are currently implemented. (authors)

  19. Ergonomics technology

    Science.gov (United States)

    Jones, W. L.

    1977-01-01

    Major areas of research and development in ergonomics technology for space environments are discussed. Attention is given to possible applications of the technology developed by NASA in industrial settings. A group of mass spectrometers for gas analysis capable of fully automatic operation has been developed for atmosphere control on spacecraft; a version for industrial use has been constructed. Advances have been made in personal cooling technology, remote monitoring of medical information, and aerosol particle control. Experience gained by NASA during the design and development of portable life support units has recently been applied to improve breathing equipment used by fire fighters.

  20. Exploration technology

    Energy Technology Data Exchange (ETDEWEB)

    Roennevik, H.C. [Saga Petroleum A/S, Forus (Norway)

    1996-12-31

    The paper evaluates exploration technology. Topics discussed are: Visions; the subsurface challenge; the creative tension; the exploration process; seismic; geology; organic geochemistry; seismic resolution; integration; drilling; value creation. 4 refs., 22 figs.

  1. Videodisc technology

    Energy Technology Data Exchange (ETDEWEB)

    Marsh, F.E. Jr.

    1981-03-01

    An overview of the technology of videodiscs is given. The emphasis is on systems that use reflection or transmission of laser light. Possible use of videodiscs for storage of bibliographic information is considered. 6 figures, 3 tables. (RWR)

  2. Plasma technology

    International Nuclear Information System (INIS)

    IREQ was contracted by the Canadian Electrical Association to review plasma technology and assess the potential for application of this technology in Canada. A team of experts in the various aspects of this technology was assembled and each team member was asked to contribute to this report on the applications of plasma pertinent to his or her particular field of expertise. The following areas were examined in detail: iron, steel and strategic-metals production; surface treatment by spraying; welding and cutting; chemical processing; drying; and low-temperature treatment. A large market for the penetration of electricity has been identified. To build up confidence in the technology, support should be provided for selected R and D projects, plasma torch demonstrations at full power, and large-scale plasma process testing

  3. Banana technology

    Science.gov (United States)

    van Amstel, Willem D.; Schellekens, E. P. A.; Walravens, C.; Wijlaars, A. P. F.

    1999-09-01

    With 'Banana Technology' an unconventional hybrid fabrication technology is indicated for the production of very large parabolic and hyperbolic cylindrical mirror systems. The banana technology uses elastic bending of very large and thin glass substrates and fixation onto NC milled metal moulds. This technology has matured during the last twenty years for the manufacturing of large telecentric flat-bed scanners. Two construction types, called 'internal banana' and 'external banana; are presented. Optical figure quality requirements in terms of slope and curvature deviations are discussed. Measurements of these optical specifications by means of a 'finishing rod' type of scanning deflectometer or slope tester are presented. Design constraints for bending glass and the advantages of a new process will be discussed.

  4. Globalization & technology

    DEFF Research Database (Denmark)

    Narula, Rajneesh

    Technology and globalization are interdependent processes. Globalization has a fundamental influence on the creation and diffusion of technology, which, in turn, affects the interdependence of firms and locations. This volume examines the international aspect of this interdependence at two levels...... of innovation" understanding of learning. Narula and Smith reconcile an important paradox. On the one hand, locations and firms are increasingly interdependent through supranational organisations, regional integration, strategic alliances, and the flow of investments, technologies, ideas and people....... The boundaries of firms and countries are increasingly porous and imprecise, because firms use alliances and outsourcing, and countries are rarely technologically self-sufficient. On the other hand, locations remain distinct and idiosyncratic, with innovation systems remaining largely nationally bound. Knowledge...

  5. Technology Trade

    OpenAIRE

    José L. Groizard

    2008-01-01

    This study addresses the question of why some countries import more R&D- intensive goods than others. Using a panel data set of 80 countries for the period 1970 to 1995, results indicate that domestic investment, FDI and the quality of intellectual property rights (IPR) systems positively affect technology imports. However, the higher the percentage of the workforce with primary studies, the lower technology imports are. Moreover, IPRs tend to reinforce the positive role played by FDI in impo...

  6. Fabrication Technology

    Energy Technology Data Exchange (ETDEWEB)

    Blaedel, K.L.

    1993-03-01

    The mission of the Fabrication Technology thrust area is to have an adequate base of manufacturing technology, not necessarily resident at Lawrence Livermore National Laboratory (LLNL), to conduct the future business of LLNL. The specific goals continue to be to (1) develop an understanding of fundamental fabrication processes; (2) construct general purpose process models that will have wide applicability; (3) document findings and models in journals; (4) transfer technology to LLNL programs, industry, and colleagues; and (5) develop continuing relationships with the industrial and academic communities to advance the collective understanding of fabrication processes. The strategy to ensure success is changing. For technologies in which they are expert and which will continue to be of future importance to LLNL, they can often attract outside resources both to maintain their expertise by applying it to a specific problem and to help fund further development. A popular vehicle to fund such work is the Cooperative Research and Development Agreement with industry. For technologies needing development because of their future critical importance and in which they are not expert, they use internal funding sources. These latter are the topics of the thrust area. Three FY-92 funded projects are discussed in this section. Each project clearly moves the Fabrication Technology thrust area towards the goals outlined above. They have also continued their membership in the North Carolina State University Precision Engineering Center, a multidisciplinary research and graduate program established to provide the new technologies needed by high-technology institutions in the US. As members, they have access to and use of the results of their research projects, many of which parallel the precision engineering efforts at LLNL.

  7. Lasers technology

    International Nuclear Information System (INIS)

    The Laser Technology Program of IPEN is developed by the Center for Lasers and Applications (CLA) and is committed to the development of new lasers based on the research of new optical materials and new resonator technologies. Laser applications and research occur within several areas such as Nuclear, Medicine, Dentistry, Industry, Environment and Advanced Research. Additional goals of the Program are human resource development and innovation, in association with Brazilian Universities and commercial partners

  8. Lasers technology

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    The Laser Technology Program of IPEN is developed by the Center for Lasers and Applications (CLA) and is committed to the development of new lasers based on the research of new optical materials and new resonator technologies. Laser applications and research occur within several areas such as Nuclear, Medicine, Dentistry, Industry, Environment and Advanced Research. Additional goals of the Program are human resource development and innovation, in association with Brazilian Universities and commercial partners.

  9. Knowledge Technologies

    OpenAIRE

    Milton, Nick

    2008-01-01

    Several technologies are emerging that provide new ways to capture, store, present and use knowledge. This book is the first to provide a comprehensive introduction to five of the most important of these technologies: Knowledge Engineering, Knowledge Based Engineering, Knowledge Webs, Ontologies and Semantic Webs. For each of these, answers are given to a number of key questions (What is it? How does it operate? How is a system developed? What can it be used for? What tools are available? Wha...

  10. Technological Inovattion

    OpenAIRE

    Alexandra Bostan

    2009-01-01

    The spectacular development of technology within the field of informatics and telecommunicationfor the last decade, associated with a postindustrial revolution, has solidly contributed to the globalization ofthe contemporary international economic life. A very important factor in promoting the globalization ofproduction and the financial globalization is the recent progress from the technology of information andcommunication which has a strong impact on the economic, social and cultural life....

  11. Technology overview

    International Nuclear Information System (INIS)

    The Integrated Assessment Program, funded by the ERDA Division of Technology Overview, is the mechanism by which health, environmental, social, economic and institutional factors are combined into a form useful for energy planning and decision making. This program selectively combines information about effects of alternative energy technologies (such as waste releases, land and water use, and social effects) to produce broad-based assessments of the advantages and disadvantages of energy and conservation options. As a corollary, needs for further research, development, and technology transfer are identified. The program is focused on four interrelated activities: supporting systems analysis to develop and improve methods for use in assessing and comparing impacts of energy and conservation options; integrated technological impact assessment, applying these methods to help select technologies for development that are safe, clean, and environmentally acceptable; regional comparative assessments, applying the results of the technological impact assessments to identification of regional energy strategies; and a regional outreach effort to assist regional and state agencies in their energy planning programs

  12. Technology and technology transfer: some basic issues

    OpenAIRE

    Shamsavari, Ali; Adikibi, Owen; Taha, Yasser

    2002-01-01

    This paper addresses various issues relating to technology and transfer of technology such as technology and society, technology and science, channels and models of technology transfer, the role of multinational companies in transfer of technology, etc. The ultimate objective is to pose the question of relevance of some existing models and ideas like technological independence in an increasingly globalised world economy.

  13. Technology cycles and technology revolutions

    Energy Technology Data Exchange (ETDEWEB)

    Paganetto, Luigi; Scandizzo, Pasquale Lucio

    2010-09-15

    Technological cycles have been characterized as the basis of long and continuous periods economic growth through sustained changes in total factor productivity. While this hypothesis is in part consistent with several theories of growth, the sheer magnitude and length of the economic revolutions experienced by humankind seems to indicate surmise that more attention should be given to the origin of major technological and economic changes, with reference to one crucial question: role of production and use of energy in economic development.

  14. Persuasive Technology

    DEFF Research Database (Denmark)

    This book constitutes the proceedings of the 5th International Conference on Persuasive Technology, PERSUASIVE 2010, held in Copenhagen Denmark in June 2010. The 25 papers presented were carefully reviewed and selected from 80 submissions. In addition three keynote papers are included in this vol......This book constitutes the proceedings of the 5th International Conference on Persuasive Technology, PERSUASIVE 2010, held in Copenhagen Denmark in June 2010. The 25 papers presented were carefully reviewed and selected from 80 submissions. In addition three keynote papers are included...... in this volume. The topics covered are emotions and user experience, ambient persuasive systems, persuasive design, persuasion profiles, designing for health, psychology of persuasion, embodied and conversational agents, economic incentives, and future directions for persuasive technology....

  15. A review of assistive listening device and digital wireless technology for hearing instruments.

    Science.gov (United States)

    Kim, Jin Sook; Kim, Chun Hyeok

    2014-12-01

    Assistive listening devices (ALDs) refer to various types of amplification equipment designed to improve the communication of individuals with hard of hearing to enhance the accessibility to speech signal when individual hearing instruments are not sufficient. There are many types of ALDs to overcome a triangle of speech to noise ratio (SNR) problems, noise, distance, and reverberation. ALDs vary in their internal electronic mechanisms ranging from simple hard-wire microphone-amplifier units to more sophisticated broadcasting systems. They usually use microphones to capture an audio source and broadcast it wirelessly over a frequency modulation (FM), infra-red, induction loop, or other transmission techniques. The seven types of ALDs are introduced including hardwire devices, FM sound system, infra-red sound system, induction loop system, telephone listening devices, television, and alert/alarm system. Further development of digital wireless technology in hearing instruments will make possible direct communication with ALDs without any accessories in the near future. There are two technology solutions for digital wireless hearing instruments improving SNR and convenience. One is near-field magnetic induction combined with Bluetooth radio frequency (RF) transmission or proprietary RF transmission and the other is proprietary RF transmission alone. Recently launched digital wireless hearing aid applying this new technology can communicate from the hearing instrument to personal computer, phones, Wi-Fi, alert systems, and ALDs via iPhone, iPad, and iPod. However, it comes with its own iOS application offering a range of features but there is no option for Android users as of this moment.

  16. Soulful Technologies

    DEFF Research Database (Denmark)

    Fausing, Bent

    2010-01-01

    Samsung introduced in 2008 a mobile phone called "Soul" made with a human touch and including itself a "magic touch". Through the analysis of a Nokia mobile phone TV-commercials I want to examine the function and form of digital technology in everyday images. The mobile phone and its digital camera...... commercials and internet commercials for mobile phones from Nokia, or handheld computers, as Sony-Ericsson prefers to call them. Digital technology points towards a forgotten pre-human and not only post-human condition....

  17. Mirror Technology

    Science.gov (United States)

    1992-01-01

    Under a NASA contract, MI-CVD developed a process for producing bulk silicon carbide by means of a chemical vapor deposition process. The technology allows growth of a high purity material with superior mechanical/thermal properties and high polishability - ideal for mirror applications. The company employed the technology to develop three research mirrors for NASA Langley and is now marketing it as CVD SILICON CARBIDE. Its advantages include light weight, thermal stability and high reflectivity. The material has nuclear research facility applications and is of interest to industrial users of high power lasers.

  18. Playful Technology

    DEFF Research Database (Denmark)

    Johansen, Stine Liv; Eriksson, Eva

    2013-01-01

    In this paper, the design of future services for children in Danish public libraries is discussed, in the light of new challenges and opportunities in relation to new media and technologies. The Danish government has over the last few years initiated and described a range of initiatives regarding...... in the library, the changing role of the librarians and the library space. We argue that intertwining traditional library services with new media forms and engaging play is the core challenge for future design in physical public libraries, but also that it is through new media and technology that new...

  19. Architectural technology

    DEFF Research Database (Denmark)

    2005-01-01

    The booklet offers an overall introduction to the Institute of Architectural Technology and its projects and activities, and an invitation to the reader to contact the institute or the individual researcher for further information. The research, which takes place at the Institute of Architectural...... Technology at the Roayl Danish Academy of Fine Arts, School of Architecture, reflects a spread between strategic, goal-oriented pilot projects, commissioned by a ministry, a fund or a private company, and on the other hand projects which originate from strong personal interests and enthusiasm of individual...

  20. Беспроводные технологии передачи данных Wi-Fi, Bluetooth и ZigBee.

    OpenAIRE

    A. Yu. Makarenko; A. O. Parfenova; S. B. Mogilniy

    2010-01-01

    В статье рассматриваются беспроводные технологии передачи данных: Wi-Fi, Bluetooth, ZigBee. Проводится сравнительная характеристика этих технологий, а также показываются возможные области их применения.

  1. Data Flow Infrastructure Initiative (DFII): Coupling Inventory Practices and Data collection Technology to Enhance Research Productivity and Information Access

    Science.gov (United States)

    Meyer, K.; Malin, R.; Rich, R. L.; Pierce, S. A.

    2011-12-01

    Shortening the cycle from data collection to research publications is a competitive advantage for researchers. Existing technologies for inventory systems such as UPC barcoding systems can be coupled with flexible mobile or handheld devices to advance efficiency, productivity, automation, and integrity in data flows, from data collection to sample processing to database management and analysis, and finally publication. At the University of Texas, the Data Flow Infrastructure Initiative (DFII) has introduced handheld devices with integrated barcode scanners as a mechanism to enhance research productivity and information access. These devices are established technology and provide a flexible but consistent platform for research data collection and data management. They are not in widespread use yet in the research community. Additional application benefits will accrue by using handheld devices to deliver data on demand in teaching applications. Introducing research scientists, graduate students, and the UT community to the merits and flexibility of these data collection technologies will provide avenues for innovation as well as improving efficiency. The objective of this project is to bring the technology and expertise with handheld systems to a diverse set of pilot projects and establish proficiency at The University of Texas at Austin necessary for widespread application. We have implemented a pilot project in three research labs covering the fields of microbial ecology, water resources decision support, and biogeochemistry to introduce these technologies. We used NautizX5 handheld devices that feature: barcode scanning, bluetooth, stylus, and keypad data inputs coupled with Pendragon Forms Software, a program that allows users to create custom data collection forms structured into an SQL or Access platform thus allowing concurrent data management, data collection and analysis in field and lab settings. Results include the elimination of most manual data entry

  2. Technology Transfer

    Science.gov (United States)

    Bullock, Kimberly R.

    1995-01-01

    The development and application of new technologies in the United States has always been important to the economic well being of the country. The National Aeronautics and Space Administration (NASA) has been an important source of these new technologies for almost four decades. Recently, increasing global competition has emphasized the importance of fully utilizing federally funded technologies. Today NASA must meet its mission goals while at the same time, conduct research and development that contributes to securing US economic growth. NASA technologies must be quickly and effectively transferred into commercial products. In order to accomplish this task, NASA has formulated a new way of doing business with the private sector. Emphasis is placed on forming mutually beneficial partnerships between NASA and US industry. New standards have been set in response to the process that increase effectiveness, efficiency, and timely customer response. This summer I have identified potential markets for two NASA inventions: including the Radially Focused Eddy Current Sensor for Characterization of Flaws in Metallic Tubing and the Radiographic Moire. I have also worked to establish a cooperative program with TAG, private industry, and a university known as the TAG/Industry/Academia Program.

  3. Manufacturing technologies

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    The Manufacturing Technologies Center is an integral part of Sandia National Laboratories, a multiprogram engineering and science laboratory, operated for the Department of Energy (DOE) with major facilities at Albuquerque, New Mexico, and Livermore, California. Our Center is at the core of Sandia`s Advanced Manufacturing effort which spans the entire product realization process.

  4. Energy Technology.

    Science.gov (United States)

    Eaton, William W.

    Reviewed are technological problems faced in energy production including locating, recovering, developing, storing, and distributing energy in clean, convenient, economical, and environmentally satisfactory manners. The energy resources of coal, oil, natural gas, hydroelectric power, nuclear energy, solar energy, geothermal energy, winds, tides,…

  5. Lasers technology

    International Nuclear Information System (INIS)

    The Lasers Technology Program of IPEN is strongly committed to the study of Laser Applications on several areas: Nuclear, Medicine and Dentistry, Industry, Environment and Advanced research, aiming not only research but diffusion and innovation in association with Brazilian universities and commercial partners

  6. Geospatial Technology

    Science.gov (United States)

    Reed, Philip A.; Ritz, John

    2004-01-01

    Geospatial technology refers to a system that is used to acquire, store, analyze, and output data in two or three dimensions. This data is referenced to the earth by some type of coordinate system, such as a map projection. Geospatial systems include thematic mapping, the Global Positioning System (GPS), remote sensing (RS), telemetry, and…

  7. Technology transfer

    International Nuclear Information System (INIS)

    This paper emphasizes in the specific areas of design, engineering and component production. This paper presents what Framatome has to offer in these areas and its export oriented philosophy. Then, a typical example of this technology transfer philosophy is the collaboration with the South Korean firm, Korea Heavy Industries Corporation (KHIC) for the supply of KNU 9 and KNU 10 power stations

  8. Seafood Technology

    DEFF Research Database (Denmark)

    Børresen, Torger

    must be performed such that total traceability and authenticity of the final products can be presented on demand. The most important aspects to be considered within seafood technology today are safety, healthy products and high eating quality. Safety can be divided into microbiological safety...

  9. Biomethane technology

    OpenAIRE

    Ogejo, Jactone Arogo; Wen, Zhiyou; Ignosh, John; Bendfeldt, Eric S.; Collins, Eldridge, 1940-

    2009-01-01

    This publication provides a general overview of anaerobic digestion and the current status of biomethane technology on livestock farms in the United States. It is part of the Bioenergy Engineering Education Program (BEEP) of the Biological Systems Engineering Department at Virginia Tech. Most of the discussion uses dairy manure as an example of feedstock for an anaerobic digester.

  10. Health technology

    International Nuclear Information System (INIS)

    The CEA is an organization with a primarily technological focus, and one of the key areas in which it carries out research is Health Technology. This field of research was recognized and approved by the French Atomic Energy Committee on July 20, 2004. The expectations of both the public and health care professionals relate to demands for the highest standards of health care, at minimum risk. This implies a need to diagnose illness and disease as accurately and as at early a stage as possible, to target surgery precisely to deal only with damaged organs or tissues, to minimize the risk of side effects, allergies and hospital-acquired infections, to follow-up and, as far as possible, tailor the health delivery system to each individual's needs and his or her lifestyle. The health care sector is subject to rapid changes and embraces a vast range of scientific fields. It now requires technological developments that will serve to gather increasing quantities of useful information, analyze and integrate it to obtain a full understanding of highly complex processes and to be able to treat the human body as un-invasively as possible. All the technologies developed require assessment, especially in the hospital environment. (authors)

  11. (Environmental technology)

    Energy Technology Data Exchange (ETDEWEB)

    Boston, H.L.

    1990-10-12

    The traveler participated in a conference on environmental technology in Paris, sponsored by the US Embassy-Paris, US Environmental Protection Agency (EPA), the French Environmental Ministry, and others. The traveler sat on a panel for environmental aspects of energy technology and made a presentation on the potential contributions of Oak Ridge National Laboratory (ORNL) to a planned French-American Environmental Technologies Institute in Chattanooga, Tennessee, and Evry, France. This institute would provide opportunities for international cooperation on environmental issues and technology transfer related to environmental protection, monitoring, and restoration at US Department of Energy (DOE) facilities. The traveler also attended the Fourth International Conference on Environmental Contamination in Barcelona. Conference topics included environmental chemistry, land disposal of wastes, treatment of toxic wastes, micropollutants, trace organics, artificial radionuclides in the environment, and the use biomonitoring and biosystems for environmental assessment. The traveler presented a paper on The Fate of Radionuclides in Sewage Sludge Applied to Land.'' Those findings corresponded well with results from studies addressing the fate of fallout radionuclides from the Chernobyl nuclear accident. There was an exchange of new information on a number of topics of interest to DOE waste management and environmental restoration needs.

  12. Vacuum Technology

    Energy Technology Data Exchange (ETDEWEB)

    Biltoft, P J

    2004-10-15

    The environmental condition called vacuum is created any time the pressure of a gas is reduced compared to atmospheric pressure. On earth we typically create a vacuum by connecting a pump capable of moving gas to a relatively leak free vessel. Through operation of the gas pump the number of gas molecules per unit volume is decreased within the vessel. As soon as one creates a vacuum natural forces (in this case entropy) work to restore equilibrium pressure; the practical effect of this is that gas molecules attempt to enter the evacuated space by any means possible. It is useful to think of vacuum in terms of a gas at a pressure below atmospheric pressure. In even the best vacuum vessels ever created there are approximately 3,500,000 molecules of gas per cubic meter of volume remaining inside the vessel. The lowest pressure environment known is in interstellar space where there are approximately four molecules of gas per cubic meter. Researchers are currently developing vacuum technology components (pumps, gauges, valves, etc.) using micro electro mechanical systems (MEMS) technology. Miniature vacuum components and systems will open the possibility for significant savings in energy cost and will open the doors to advances in electronics, manufacturing and semiconductor fabrication. In conclusion, an understanding of the basic principles of vacuum technology as presented in this summary is essential for the successful execution of all projects that involve vacuum technology. Using the principles described above, a practitioner of vacuum technology can design a vacuum system that will achieve the project requirements.

  13. Technology Programme

    Energy Technology Data Exchange (ETDEWEB)

    Batistoni, Paola; De Marco, Francesco; Pieroni, Leonardo (ed.)

    2005-07-01

    The technology activities carried out by the Euratom-ENEA Association in the framework of the European Fusion Development Agreement concern the Next Step (International Thermonuclear Experimental Reactor - ITER), the Long-Term Programme (breeder blanket, materials, International Fusion Materials Irradiation Facility - IFMIF), Power Plant Conceptual Studies and Socio-Economic Studies. The Underlying Technology Programme was set up to complement the fusion activities as well to develop technologies with a wider range of interest. The Technology Programme mainly involves staff from the Frascati laboratories of the Fusion Technical and Scientific Unit and from the Brasimone laboratories of the Advanced Physics Technologies Unit. Other ENEA units also provide valuable contributions to the programme. ENEA is heavily engaged in component development/testing and in design and safety activities for the European Fusion Technology Programme. Although the work documented in the following covers a large range of topics that differ considerably because they concern the development of extremely complex systems, the high level of integration and coordination ensures the capability to cover the fusion system as a whole. In 2004 the most significant testing activities concerned the ITER primary beryllium-coated first wall. In the field of high-heat-flux components, an important achievement was the qualification of the process for depositing a copper liner on carbon fibre composite (CFC) hollow tiles. This new process, pre-brazed casting (PBC), allows the hot radial pressing (HRP) joining procedure to be used also for CFC-based armour monoblock divertor components. The PBC and HRP processes are candidates for the construction of the ITER divertor. In the materials field an important milestone was the commissioning of a new facility for chemical vapour infiltration/deposition, used for optimising silicon carbide composite (SiCf/SiC) components. Eight patents were deposited during 2004

  14. Technology: Technology and Common Sense

    Science.gov (United States)

    Van Horn, Royal

    2004-01-01

    The absence of common sense in the world of technology continues to amaze the author. Things that seem so logical to just aren nott for many people. The installation of Voice-over IP (VoIP, with IP standing for Internet Protocol) in many school districts is a good example. Schools have always had trouble with telephones. Many districts don't even…

  15. Innovative Technology in Automotive Technology

    Science.gov (United States)

    Gardner, John

    2007-01-01

    Automotive Technology combines hands-on training along with a fully integrated, interactive, computerized multistationed facility. Our program is a competency based, true open-entry/open-exit program that utilizes flexible self-paced course outlines. It is designed around an industry partnership that promotes community and economic development,…

  16. Communications technology

    Science.gov (United States)

    Cuccia, C. Louis; Sivo, Joseph

    1986-01-01

    The technologies for optimized, i.e., state of the art, operation of satellite-based communications systems are surveyed. Features of spaceborne active repeater systems, low-noise signal amplifiers, power amplifiers, and high frequency switches are described. Design features and capabilities of various satellite antenna systems are discussed, including multiple beam, shaped reflector shaped beam, offset reflector multiple beam, and mm-wave and laser antenna systems. Attitude control systems used with the antenna systems are explored, along with multiplexers, filters, and power generation, conditioning and amplification systems. The operational significance and techniques for exploiting channel bandwidth, baseband and modulation technologies are described. Finally, interconnectivity among communications satellites by means of RF and laser links is examined, as are the roles to be played by the Space Station and future large space antenna systems.

  17. Teutonic technology

    Energy Technology Data Exchange (ETDEWEB)

    Chadwick, J.

    2005-06-01

    The paper looks at some of the main examples available of German innovation in mining equipment. Equipment mentioned includes: shafts from Siemag, Siemens, Thyssen Schachtbau and Deilmann-Haniel; a diesel monorail from DBT Scharf; sludge treatment equipment from the Andritz Group; pumps for longwall mining from Kamat, coal preparation equipment from Aubema Crushing Technology and Voith Turbo; longwall systems from DBT Mining Engineers; and roadheaders and continuous miners from Wirtgen. 4 photos.

  18. Nuclear technology

    International Nuclear Information System (INIS)

    This report examines nuclear technology in Canada, with emphasis on Quebec, as a means of revitilizing industry. The historical, present day, and future states of Atomic Energy of Canada Limited are examined. Future research programs are discussed in greatest detail. These range from disposal of porcine wastes to new applications for electricity to nuclear medical techniques (to cite only a few examples). The executive summary is written in English. (23 fig., 16 tab.)

  19. Manufacturing technology

    Energy Technology Data Exchange (ETDEWEB)

    Leonard, J.A.; Floyd, H.L.; Goetsch, B.; Doran, L. [eds.

    1993-08-01

    This bulletin depicts current research on manufacturing technology at Sandia laboratories. An automated, adaptive process removes grit overspray from jet engine turbine blades. Advanced electronic ceramics are chemically prepared from solution for use in high- voltage varistors. Selective laser sintering automates wax casting pattern fabrication. Numerical modeling improves performance of photoresist stripper (simulation on Cray supercomputer reveals path to uniform plasma). And mathematical models help make dream of low- cost ceramic composites come true.

  20. Recycling's technology

    Directory of Open Access Journals (Sweden)

    A. Zajdel

    2007-04-01

    Full Text Available Purpose: Environmental problems have been considered as serious situation in the construction. Waste management is pressing harder with alarming signal warning the industry. This paper discusses the potential impact of biodegradable materials on waste management in terms of landfill, incineration, recycle/reuse composting.Design/methodology/approach: This article reviewed the implementation of strategies of WEEE treatment and the recovery technologies of WEEE. It presented the current status of WEEE and corresponding responses adopted.Findings: The possibility of managing the growing amount of waste and used appliances and equipment according to the accessible literature was shown and the importance of one of the most popular method of waste neutralization (recycling was underlined.Practical implications: The recycling of WEEE is important to introduce and develop cost-effective and environmentally friendly WEEE recycling technologies. it is also necessary to arouse and enhance public awareness regarding environmental protection by publicity, education and so forth, in order to change their traditional viewpoint on the end-of-life electric appliances or cars.Originality/value: This article discusses how environmental science and technology can be applied to hazardous waste management to develop measures by which chemical wastes can be minimized, recycled, treated and disposed.

  1. Emerging technologies

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Shin-yee

    1993-03-01

    The mission of the Emerging Technologies thrust area at Lawrence Livermore National Laboratory is to help individuals establish technology areas that have national and commercial impact, and are outside the scope of the existing thrust areas. We continue to encourage innovative ideas that bring quality results to existing programs. We also take as our mission the encouragement of investment in new technology areas that are important to the economic competitiveness of this nation. In fiscal year 1992, we have focused on nine projects, summarized in this report: (1) Tire, Accident, Handling, and Roadway Safety; (2) EXTRANSYT: An Expert System for Advanced Traffic Management; (3) Odin: A High-Power, Underwater, Acoustic Transmitter for Surveillance Applications; (4) Passive Seismic Reservoir Monitoring: Signal Processing Innovations; (5) Paste Extrudable Explosive Aft Charge for Multi-Stage Munitions; (6) A Continuum Model for Reinforced Concrete at High Pressures and Strain Rates: Interim Report; (7) Benchmarking of the Criticality Evaluation Code COG; (8) Fast Algorithm for Large-Scale Consensus DNA Sequence Assembly; and (9) Using Electrical Heating to Enhance the Extraction of Volatile Organic Compounds from Soil.

  2. Technology Management

    DEFF Research Database (Denmark)

    Pilkington, Alan

    2014-01-01

    This paper reports a bibliometric analysis (co-citation network analysis) of 10 journals in the management of technology (MOT) field. As well as introducing various bibliometric ideas, network analysis tools identify and explore the concepts covered by the field and their inter-relationships. Spe......This paper reports a bibliometric analysis (co-citation network analysis) of 10 journals in the management of technology (MOT) field. As well as introducing various bibliometric ideas, network analysis tools identify and explore the concepts covered by the field and their inter......-relationships. Specific results from different levels of analysis show the different dimensions of technology management: • Co-word terms identify themes • Journal co-citation network: linking to other disciplines • Co-citation network show concentrations of themes The analysis shows that MOT has a bridging role...... in integrating ideas from several distinct disciplines. This suggests that management and strategy are central to MOT which essentially relates to the firm rather than policy. Similarly we have a dual focus on capabilities, but can see subtle differences in how we view these ideas, either through an inwards...

  3. Biohydrometallurgical technologies

    International Nuclear Information System (INIS)

    The theme of the International Biohydrometallurgy Symposium held in Jackson Hole, Wyoming, August 22-25, 1993, is ''Biohydrometallurgy: An Industry Matures.'' This is a developing technology which made important contributions to the minerals industry. Biohydrometallurgical technology was first introduced into the copper industry and subsequently to the uranium industry for the production of metal values from low-grade mineral resources. Currently, biotechnology has advanced a step further. It is now commercially applied for the treatment of high-grade refractory gold ores in aerated stirred reactors to liberate precious metals for cyanidation. In addition, the industrial applications of biotechnology involve bioenhanced tertiary oil recovery processes, which contribute to an increase in oil production from previously exhausted wells. Furthermore, many bioremediation technologies are being developed for the removal of toxic heavy metals and radionuclides from contaminated soils and aqueous mining and industrial effluents. This volume contains papers selected for publication which are predominantly dealing with subjects related to laboratory and industrial scale bioleaching of base and precious metals, biocorrosion phenomena, diverse bioreduction processes and electrochemical reactions. Individual papers have been processed separately for inclusion in the appropriate data bases

  4. Hearing Assistive Technology

    Science.gov (United States)

    ... for the Public / Hearing and Balance Hearing Assistive Technology Hearing Assistive Technology: FM Systems | Infrared Systems | Induction ... Assistive Technology Systems Solutions What are hearing assistive technology systems (HATS)? Hearing assistive technology systems (HATS) are ...

  5. Lessons learned about wireless technologies for data acquistion

    Science.gov (United States)

    Mitchell, Kyle; Rao, Vittal S.; Pottinger, Hardy J.

    2002-07-01

    Bluetooth, and Linx Technologies RF modules have all been tested as short-range wireless communication solutions. We have demonstrated a system that consists of a structure with an array of smart sensors, preprocess and collect data, and post this data on a web server for global inspection and manipulation. This will enable data sharing and collaborative data analysis to extend the knowledge of structural health monitoring.

  6. ОБЕСПЕЧЕНИЕ БЕЗОПАСНОСТИ ПРИ ПОДКЛЮЧЕНИИ МЕДИЦИНСКИХ УСТРОЙСТВ ПО ПРОТОКОЛУ BLUETOOTH LOW ENERGY

    OpenAIRE

    Корсаков, Игорь; Купцов, Сергей; Разнометов, Денис

    2015-01-01

    В целях обеспечения безопасности беспроводной передачи данных от медицинских приборов к смартфону в рамках системы дистанционного мониторинга системы человека, в данной статье были исследованы потенциальные проблемы безопасности протокола Bluetooth и Bluetooth Low Energy и разработаны практические рекомендации по защите от несанкционированного доступа....

  7. Agreement technologies

    CERN Document Server

    Ossowski, Sascha

    2013-01-01

    More and more transactions, whether in business or related to leisure activities, are mediated automatically by computers and computer networks, and this trend is having a significant impact on the conception and design of new computer applications. The next generation of these applications will be based on software agents to which increasingly complex tasks can be delegated, and which interact with each other in sophisticated ways so as to forge agreements in the interest of their human users. The wide variety of technologies supporting this vision is the subject of this volume. It summarises

  8. Technology, wealth and modern management of technology

    OpenAIRE

    Peter Štrukelj; Slavko Dolinšek

    2013-01-01

    In the paper, we propose somewhat different conceptualizations of technology, of a fundamental relationship between technology and wealth in a society, of technological capability, and of management of technology. We based our proposed conceptualizations on the current general and relevant technological practice. In order to infer these conceptualizations, we studied todayʼs largest companies worldwide in different production and technology sectors as well as some general reporting on technol...

  9. Technology round and management of technology

    International Nuclear Information System (INIS)

    This book deals with beginning of technology round with background of it, change of scientific technique paradigm with economy, management and policy, change of international political environment globalization of technical and economic environment, formation of strategic alliance, intensifying regionalism, new GATT system, UR and technology round, new international technique regulation and technology round of OECD, feature and meaning of technology round, assignment and scientific technique of Korea, past and present of scientific technology in Korea, correspondence for technology round.

  10. Incineration technologies

    CERN Document Server

    Buekens, Alfons

    2013-01-01

    Waste incineration is the art of completely combusting waste, while maintaining or reducing emission levels below current emission standards. Where possible, objectives include the recovering of energy as well as the  combustion residues.  Successful waste incineration makes it possible to achieve a deep reduction in waste volume, obtain a compact and sterile residue, and eliminate a wide array of pollutants. This book places waste incineration within the wider context of waste management, and demonstrates that, in contrast to landfills and composting, waste incineration can eliminate objectionable and hazardous properties such as flammability and toxicity, result in a significant reduction in volume, and destroy gaseous and liquid waste streams leaving little or no residues beyond those linked to flue gas neutralization and treatment. Moreover, waste incineration sterilizes and destroys putrescible matter, and produces usable heat.  Incineration Technologies first appeared as a peer-reviewed contribution ...

  11. Design of an adaptive LNA for hand‐held devices in a 1‐V 90‐nm standard RF CMOS technology: From circuit analysis to layout

    Directory of Open Access Journals (Sweden)

    Edwin Becerra‐Álvarez

    2009-04-01

    Full Text Available This paper deals the design of a reconfigurable Low‐Noise Amplifier (LNA for the next generation of wireless hand‐held devicesby using a lumped circuit approach based on physical laws. The purpose is not only to present simulation results showing thefulfillment of different standard specifications, but also to demonstrate that each design step has a physical meaning such thatthe mathematical design flow is simple as well as suitable for hand‐work in both laboratory and classroom. The circuit underanalysis, which is designed according to technological design rules of a 90nm CMOS technology, is a two‐stage topologyincluding inductive‐source degeneration, MOS‐varactor based tuning networks, and programmable bias currents. This proposal,with reduced number of inductors and minimum power dissipation, adapts its performance to different standard specifications;the LNA is designed to cope with the requirements of GSM (PCS1900, WCDMA, Bluetooth and WLAN (IEEE 802.11b‐g. In orderto evaluate the effect of technology parasitics on the LNA performance, simulation results demonstrate that the LNA featuresNF16dB, S11‐3.3 dBm over the 1.85‐2.48 GHz band. For all the standards understudy the adaptive power consumption varies from 25.3 mW to 53.3mW at a power supply of 1‐V. The layout of thereconfigurable LNA occupies an area of 1.8mm2.

  12. How Technology Teachers Understand Technological Knowledge

    Science.gov (United States)

    Norström, Per

    2014-01-01

    Swedish technology teachers' views of technological knowledge are examined through a written survey and a series of interviews. The study indicates that technology teachers' understandings of what constitutes technological knowledge and how it is justified vary considerably. The philosophical discussions on the topic are unknown to them.…

  13. BIOGAS TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    D.B. SALUNKHE

    2012-12-01

    Full Text Available Due to scarcity of petroleum and coal it threatens supply of fuel throughout the world also problem of their combustion leads to research in different corners to get access the new sources of energy, like renewable energy resources. Solar energy, wind energy, different thermal and hydro sources of energy, biogas are all renewable energy resources. But, biogas is distinct from other renewable energies because of its characteristics of using, controlling and collecting organic wastes and at the same time producing fertilizer and water for use in agricultural irrigation. Biogas does not have any geographical limitations nor does it require advanced technology for producing energy, also it is very simple to use and apply. Anaerobic digestion is controlled biological degradation process which allows efficient capturing & utilization of biogas (approximately 60% methane and 40% carbon dioxide for energy generation. Anaerobic digestion of food waste is achievable but different types, composition of food waste results in varying degrees of methane yields, and thus the effects of mixing various types of food waste and their proportions should be determined on case by case basis.

  14. CMM Technology

    Energy Technology Data Exchange (ETDEWEB)

    Ward, Robert C.

    2008-10-20

    This project addressed coordinate measuring machine (CMM) technology and model-based engineering. CMM data analysis and delivery were enhanced through the addition of several machine types to the inspection summary program. CMM hardware and software improvements were made with the purchases of calibration and setup equipment and new model-based software for the creation of inspection programs. Kansas City Plant (KCP) personnel contributed to and influenced the development of dimensional metrology standards. Model-based engineering capabilities were expanded through the development of software for the tolerance analysis of piece parts and for the creation of model-based CMM inspection programs and inspection plans and through the purchase of off-the-shelf software for the tolerance analysis of mechanical assemblies. An obsolete database application used to track jobs in Precision Measurement was replaced by a web-based application with improved query and reporting capabilities. A potential project to address the transformation of the dimensional metrology enterprise at the Kansas City Plant was identified.

  15. Flywheel Technology

    Science.gov (United States)

    Ritchie, Lisa M.

    2004-01-01

    Throughout the summer of 2004, I am working on a number of different projects. While located in the Space Power and Propulsion Test Engineering branch, my main area of study is flywheel technology. I have been exposed to flywheels, their components, and their uses in today's society. I have been able to experience numerous flywheels here in the flywheel lab at NASA Glenn. My first main project was to explore the attributes and physical characteristics of a flywheel. Our branch was constructing a flywheel demonstration to be presented at the public open house taking place in June. Our Flywheel Interactive Demo, or FIDO, represents a real life multi-flywheel system here at NASA. I was given the opportunity to learn about how these flywheels store energy and are able to position a satellite. With all of this new knowledge, I was able to create the posters that explained how our demonstration worked. I also composed a step-by-step process made up of four experiments that any visitor could follow and perform on FIDO. By stepping through these experiments, the individual learns how a flywheel works. They not only read the explanation of what is happening, but they are also able to see it happen. Creating these two posters not only taught me, but also helped teach the general public during the open house, how flywheel technology is a very important part of our future. Through my research, I have learned that flywheels are able to store massive amounts of energy. They can be described as an electro-mechanical battery that stores kinetic energy while rotating. The faster it rotates, the more energy it stores. Their lifetime is about triple that of an ordinary battery. Flywheels also have the ability to combine energy storage with attitude control all in a single system. Attitude control is the ability to position a satellite as required. FIDO helps us to understand the rotational force (torque) that is applied upon a turn-table or satellite during wheel acceleration

  16. Play it by Ear

    DEFF Research Database (Denmark)

    Kammersgaard, Nikolaj Peter Iversen; Kvist, Søren Helstrup; Thaysen, Jesper;

    2014-01-01

    The first antenna for ear-to-ear communication with a standard Bluetooth chip has the potential to improve hearing aid technology.......The first antenna for ear-to-ear communication with a standard Bluetooth chip has the potential to improve hearing aid technology....

  17. Low Noise Amplifier for 2.45 GHz Frequency Band at 0.18 μm CMOS Technology for IEEE Standard 802.11 b/g WLAN

    Directory of Open Access Journals (Sweden)

    Viranjay M. Srivastava

    2012-08-01

    Full Text Available This paper presents the design of low noise amplifier (LNA at 2.45 GHz and integrated at 0.18 µm RF CMOS process technology. This type of LNA at 2.45 GHz is use in the Bluetooth receiver. The proposed method is useful to optimize noise performance and power gain while maintaining good input and output matching. The amplifier is designed to be used as first stage of a receiver for wireless communication. The main aim of designer is to achieve low noise figure with improved gain with the help of CMOS technology by using single stage n-MOS amplifier. The simulation results show a forward gain of 14.0 dB, a noise-figure of 0.5 dB and stability factor is approximate unity, in which the circuit operates at 14.2 mA drain current with supply voltage of 3.5 V and biasing voltage of 1.5 V.

  18. Plasma technology directory

    International Nuclear Information System (INIS)

    The Plasma Technology Directory has two main goals: (1) promote, coordinate, and share plasma technology experience and equipment within the Department of Energy; and (2) facilitate technology transfer to the commercial sector where appropriate. Personnel are averaged first by Laboratory and next by technology area. The technology areas are accelerators, cleaning and etching deposition, diagnostics, and modeling

  19. Plasma technology directory

    Science.gov (United States)

    Ward, Pamela P.; Dybwad, Gay L.

    1995-03-01

    The Plasma Technology Directory has two main goals: (1) promote, coordinate, and share plasma technology experience and equipment within the Department of Energy; and (2) facilitate technology transfer to the commercial sector where appropriate. Personnel are averaged first by Laboratory and next by technology area. The technology areas are accelerators, cleaning and etching deposition, diagnostics, and modeling.

  20. Educational technology and the new technologies

    OpenAIRE

    Verhagen, Pløn W.; Plomp, Tjeerd

    1989-01-01

    Like everywhere in our culture, new technologies gradually penetrate the field of education. This may be seen as a problem area, which asks for appropriate, actions by teachers, curriculum experts, instructional designers and others. As "technology" seems to be the main issue,one may quation whether the introduction of new technologies is to be considered as an educational technological problem. To a certain extent, the answer may be yes. In this contribution, the nature of educational techno...

  1. Induced Technological Change under Technology Competition

    OpenAIRE

    Gerlagh, Reyer

    2003-01-01

    We develop a partial one-sector model with capital, natural resources, and labor as production factors, and endogenous technological change through research. Production exhibits increasing returns to scale. We compare the response of output and resource use to a change in resource prices with and without induced technological change (ITC). It is shown that induced technological change is insignificant in reducing resource use when there is one representative technology and output demand is in...

  2. CERN Science and Technology

    OpenAIRE

    Di Meglio, Alberto

    2015-01-01

    A high-level overview of the relationship between science and technology at CERN and the impact of technology on research with a focus on ICT technologies. Presented as a 12-minute "power-talk" at CIOCity 2015, Brussels

  3. Excimer Laser Technology

    CERN Document Server

    Basting, Dirk

    2005-01-01

    This comprehensive survey on Excimer Lasers investigates the current range of the technology, applications and devices of this commonly used laser source, as well as the future of new technologies, such as F2 laser technology. Additional chapters on optics, devices and laser systems complete this compact handbook. A must read for laser technology students, process application researchers, engineers or anyone interested in excimer laser technology. An effective and understandable introduction to the current and future status of excimer laser technology.

  4. Transition to Clean Technology

    OpenAIRE

    Acemoglu, Daron; Akcigit, Ufuk; Hanley, Douglas; Kerr,William Robert

    2014-01-01

    We develop a microeconomic model of endogenous growth where clean and dirty technologies compete in production and innovation-in the sense that research can be directed to either clean or dirty technologies. If dirty technologies are more advanced to start with, the potential transition to clean technology can be difficult both because clean research must climb several steps to catch up with dirty technology and because this gap discourages research effort directed towards clean technologies....

  5. Morgantown Energy Technology Center, technology summary

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Morgantown Energy Technology Center (METC). Technologies and processes described have the potential to enhance DOE`s cleanup and waste management efforts, as well as improve US industry`s competitiveness in global environmental markets. METC`s R&D programs are focused on commercialization of technologies that will be carried out in the private sector. META has solicited two PRDAs for EM. The first, in the area of groundwater and soil technologies, resulted in twenty-one contact awards to private sector and university technology developers. The second PRDA solicited novel decontamination and decommissioning technologies and resulted in eighteen contract awards. In addition to the PRDAs, METC solicited the first EM ROA in 1993. The ROA solicited research in a broad range of EM-related topics including in situ remediation, characterization, sensors, and monitoring technologies, efficient separation technologies, mixed waste treatment technologies, and robotics. This document describes these technology development activities.

  6. Morgantown Energy Technology Center, technology summary

    International Nuclear Information System (INIS)

    This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Morgantown Energy Technology Center (METC). Technologies and processes described have the potential to enhance DOE's cleanup and waste management efforts, as well as improve US industry's competitiveness in global environmental markets. METC's R ampersand D programs are focused on commercialization of technologies that will be carried out in the private sector. META has solicited two PRDAs for EM. The first, in the area of groundwater and soil technologies, resulted in twenty-one contact awards to private sector and university technology developers. The second PRDA solicited novel decontamination and decommissioning technologies and resulted in eighteen contract awards. In addition to the PRDAs, METC solicited the first EM ROA in 1993. The ROA solicited research in a broad range of EM-related topics including in situ remediation, characterization, sensors, and monitoring technologies, efficient separation technologies, mixed waste treatment technologies, and robotics. This document describes these technology development activities

  7. Technology and Economics, Inc. Technology Application Team

    Science.gov (United States)

    Ballard, T.; Macfadyen, D. J.

    1981-01-01

    Technology + Economics, Inc. (T+E), under contract to the NASA Headquarters Technology Transfer Division, operates a Technology Applications Team (TATeam) to assist in the transfer of NASA-developed aerospace technology. T+E's specific areas of interest are selected urban needs at the local, county, and state levels. T+E contacts users and user agencies at the local, state, and county levels to assist in identifying significant urban needs amenable to potential applications of aerospace technology. Once viable urban needs have been identified in this manner, or through independent research, T+E searches the NASA technology database for technology and/or expertise applicable to the problem. Activities currently under way concerning potential aerospace applications are discussed.

  8. Nuevas tecnologías en los gabinetes de comunicación de las universidades española / New Communication Technologies in Spanish University Communication Departments

    Directory of Open Access Journals (Sweden)

    Lorena Busto Salinas

    2013-12-01

    Full Text Available Las nuevas tecnologías proporcionan diversos beneficios a los profesionales de las relaciones públicas. Por una parte, facilitan la circulación de información y permiten un mayor alcance de audiencias. Por otra, ayudan a los trabajadores de esta disciplina a dar el salto de técnicos a gestores de comunicación y a incrementar su poder dentro de las organizaciones. Por todo ello, el empleo de nuevas tecnologías se ha convertido en la tendencia dominante en el ámbito de las relaciones públicas. Para comprobar si las universidades de España se encuentran dentro de esta moda, se ha enviado un cuestionario a los departamentos de comunicación de cada organización preguntándoles las herramientas de comunicación online y tecnológicas que utilizan con los diferentes públicos. Se ha detectado que estos centros han incorporado ampliamente algunas herramientas online, como la página web, el correo electrónico, las redes sociales e intranet, e incluso muchas retransmiten acontecimientos a través de internet y ofrecen una sala de prensa virtual para los periodistas. No obstante, muy pocas hacen uso de otras herramientas más innovadoras, como wikis, Bluetooth, realidad aumentada, SMS, videoconferencias o podcasts. Divididas por naturaleza, las universidades públicas usan más herramientas que las privadas, aunque las diferencias no son demasiado acusadas. Además, se ha verificado que no hay centros que destaquen sobradamente sobre el resto, sino que todos utilizan las nuevas tecnologías de manera parecida. En resumen, los departamentos de comunicación de las universidades de España presentan características similares en su uso de internet y nuevas tecnologías: han incorporado las más tradicionales e instauradas entre el público, pero obvian o, al menos, no hacen pleno uso de toda la amalgama de tecnologías disponibles. / New communication technologies provide several benefits to public relations practitioners. On one hand, they

  9. Marketing technology in macroeconomics.

    Science.gov (United States)

    Tamegawa, Kenichi

    2012-01-01

    In this paper, we incorporate a marketing technology into a dynamic stochastic general equilibrium model by assuming a matching friction for consumption. An improvement in matching can be interpreted as an increase in matching technology, which we call marketing technology because of similar properties. Using a simulation analysis, we confirm that a positive matching technology shock can increase output and consumption. PMID:23961358

  10. Educational Technology in China

    Science.gov (United States)

    Meifeng, Liu; Jinjiao, Lv; Cui, Kang

    2010-01-01

    This paper elaborates the two different academic views of the identity of educational technology in China at the current time--advanced-technology-oriented cognition, known as Electrifying Education, and problem-solving-oriented cognition, known as Educational Technology. It addresses five main modes of educational technology in China: as a…

  11. Advancement in Engineering Technology

    DEFF Research Database (Denmark)

    Kalia, Kartik; Rehman, M. Atiqur; Hussain, Dil muhammed Akbar;

    2016-01-01

    but to harvest those ideas, technology is a must. With the huge requirement of engineering equipment's, the industry needs specialists who can manage and operate these technologies. Detailed information about the merits and demerits of technology is also mentioned in this paper. Findings: Technology has affected...

  12. Marketing technology in macroeconomics

    OpenAIRE

    Tamegawa, Kenichi

    2012-01-01

    In this paper, we incorporate a marketing technology into a dynamic stochastic general equilibrium model by assuming a matching friction for consumption. An improvement in matching can be interpreted as an increase in matching technology, which we call marketing technology because of similar properties. Using a simulation analysis, we confirm that a positive matching technology shock can increase output and consumption.

  13. Emerging technology and ethics

    CERN Document Server

    Wakunuma, Kutoma

    2011-01-01

    This e-book on Emerging Technologies and Ethics includes a collection of essays which explore the future and ethics of emerging information and communication technologies. Articles in the collection include an overview of the legal implications which may be relevant to the ethical aspects of emerging technologies and also ethical issues arising from the mass-take up of mobile technologies.

  14. Teaching with Technology.

    Science.gov (United States)

    Meade, Jeff; And Others

    1991-01-01

    Special section on teaching with technology offers eight articles on how to get over technophobia, how to overcome obstacles and "do-it-yourself," teacher training, what teachers are currently doing with technology, how one school uses technology, whether technology works, how to buy a computer, and available resources. (SM)

  15. Soil washing technology evaluation

    International Nuclear Information System (INIS)

    Environmental Restoration Engineering (ERE) continues to review innovative, efficient, and cost effective technologies for SRS soil and/or groundwater remediation. As part of this effort, this technical evaluation provides review and the latest information on the technology for SRS soil remediation. Additional technology evaluation reports will be issued periodically to update these reports. The purpose of this report is to review the soil washing technology and its potential application to SRS soil remediation. To assess whether the Soil Washing technology is a viable option for SRS soil remediation, it is necessary to review the technology/process, technology advantages/limitations, performance, applications, and cost analysis

  16. Competing through Information Technology

    OpenAIRE

    Pieterse, M.

    2002-01-01

    Despite the fact that more money is spent annually on information technology, very few firms have found competitive advantage through the use of information technology. Information technology is seen as a backoffice function that is used for administrative functions and not as a key business enabler. Information technology will not only aid the business in surviving, but can be a strategic component to providing competitive advantage to the business, provided that the information technology f...

  17. Technology and Trade

    OpenAIRE

    Grossman, Gene; Helpman, Elhanan

    1994-01-01

    We survey research on the relationship between technology and trade. We begin with the old literature, which treated the state of technology as exogenous and asked how changes in technology affect the trade pattern and welfare. Recent research has attempted to endogenize technological progress which results either from learning- by-doing or from investments in research and development. This allows one to examine not only how technology affects trade, but also how trade affects the evolution o...

  18. Environmentalism and Technology

    OpenAIRE

    Adrian Smith

    2006-01-01

    The environment movement often targets technology. It switches between enthusiasm for some technologies (like wind energy) and resistance to others (like nuclear power). And yet theory regarding the way social movements engage with technology is little developed. Environment groups are simply assumed to contribute to the 'selection pressures' under which technologies evolve. This paper seeks to develop theory by bridging a gap between social movement research and the sociology of technology. ...

  19. Technology and Nursing

    OpenAIRE

    Maria Vera Lúcia Moreira Leitão Cardoso

    2012-01-01

    In the present age we cannot disassociate from emerging issues, which involve science, communication, health and technology, the influence of media, technological advances, and the use of computers in all spheres of life. The concepts created for technology cover various evaluation approaches, which depend upon which type of technology, approaches, usefulness and influences in a particular area of knowledge. Technological advances cover several areas, figuring quantum physics, nanotechnology,...

  20. Editorial: Advanced learning technologies

    OpenAIRE

    Yu-Ju Lan; Gang-Shan Fu; Stephen J.H. Yang; Jeff J.S. Huang

    2012-01-01

    Recent rapid development of advanced information technology brings high expectations of its potential to improvement and innovations in learning. This special issue is devoted to using some of the emerging technologies issues related to the topic of education and knowledge sharing, involving several cutting edge research outcomes from recent advancement of learning technologies. Advanced learning technologies are the composition of various related technologies and concepts such as mobile tech...

  1. Newnes communications technology handbook

    CERN Document Server

    Lewis, Geoff

    1994-01-01

    Newnes Communications Technology Handbook provides a discussion on different topics relevant to communications technology. The book is comprised of 39 chapters that tackle a wide variety of concern in communications technology. The coverage of the text includes technologies, such as analog digital communications systems, radio frequency receiver, and satellite systems. The book also discusses some methods and techniques used in communications technology, including mixer signal processing, modulation and demodulation, and spread spectrum techniques. The text will be of great use to engineers, t

  2. Benchmarking Semantic Web technology

    OpenAIRE

    García-Castro, Raúl

    2008-01-01

    Semantic Web technologies need to interchange ontologies for further use. Due to the heterogeneity in the knowledge representation formalisms of the different existing technologies, interoperability is a problem in the SemanticWeb and the limits of the interoperability of current technologies are yet unknown. A massive improvement of the interoperability of current SemanticWeb technologies, or of any other characteristic of these technologies, requires continuous evaluations that should be de...

  3. Beacons - serveis de proximitat: sistema de posicionament a interiors

    OpenAIRE

    Ariñez Soriano, Daniel

    2015-01-01

    El projecte tracta sobre el posicionament en interiors utilitzant una combinació de les tecnologies WiFi i Bluetooth Low Energy combinades amb l'algorisme de fingerprint i Support Vector Machines. Project is about indoor positioning system using a combination of technologies WiFi and Bluetooth Low Energy combinates with fingerprint algorithm and Support Vector Machines.

  4. GRACE BIOREMEDIATION TECHNOLOGIES - DARAMEND™ BIOREMEDIATION TECHNOLOGY. INNOVATIVE TECHNOLOGY EVALUATION REPORT

    Science.gov (United States)

    Grace Dearborn's DARAMEND™ Bioremediation Technology was developed to treat soils/sediment contaminated with organic contaminants using solid-phase organic amendments. The amendments increase the soil’s ability to supply biologically available water/nutrients to micro...

  5. Emerging Technologies Integrating Technology into Study Abroad

    Science.gov (United States)

    Godwin-Jones, Robert

    2016-01-01

    "Ready access to travel and to technology-enhanced social networking (e.g., Facebook or Skype) has changed the nature of study abroad to the point where today's experiences are fundamentally different from those of earlier eras" (Kinginger, 2013a, p. 345). In addition to more travel options and greater technology availability, study…

  6. Educational technology and the new technologies

    NARCIS (Netherlands)

    Verhagen, Pløn W.; Plomp, Tjeerd

    1989-01-01

    Like everywhere in our culture, new technologies gradually penetrate the field of education. This may be seen as a problem area, which asks for appropriate, actions by teachers, curriculum experts, instructional designers and others. As "technology" seems to be the main issue,one may quation whether

  7. SHARED TECHNOLOGY TRANSFER PROGRAM

    Energy Technology Data Exchange (ETDEWEB)

    GRIFFIN, JOHN M. HAUT, RICHARD C.

    2008-03-07

    The program established a collaborative process with domestic industries for the purpose of sharing Navy-developed technology. Private sector businesses were educated so as to increase their awareness of the vast amount of technologies that are available, with an initial focus on technology applications that are related to the Hydrogen, Fuel Cells and Infrastructure Technologies (Hydrogen) Program of the U.S. Department of Energy. Specifically, the project worked to increase industry awareness of the vast technology resources available to them that have been developed with taxpayer funding. NAVSEA-Carderock and the Houston Advanced Research Center teamed with Nicholls State University to catalog NAVSEA-Carderock unclassified technologies, rated the level of readiness of the technologies and established a web based catalog of the technologies. In particular, the catalog contains technology descriptions, including testing summaries and overviews of related presentations.

  8. The Bluetooth Technology with a Seductive Future and the Anticipation of the Application of It in the Far-Distance & Education, Mobil Education and Network Education%前景诱人的蓝牙技术及其在远程、移动、网络教育中的应用展望

    Institute of Scientific and Technical Information of China (English)

    焦聘武

    2006-01-01

    本文在介绍蓝牙技术概念的基础上,简要说明了蓝牙技术的网络结构、组成、特点及由蓝牙技术衍生出的多种实际应用.接着提出了蓝牙教学网、蓝牙多媒体教室、蓝牙远程移动实时授课系统、个人微型移动蓝牙随身学习网等概念并作了一定分析和讨论.

  9. [Health technology in Mexico].

    Science.gov (United States)

    Cruz, C; Faba, G; Martuscelli, J

    1992-01-01

    The features of the health technology cycle are presented, and the effects of the demographic, epidemiologic and economic transition on the health technology demand in Mexico are discussed. The main problems of science and technology in the context of a decreasing scientific and technological activity due to the economic crisis and the adjustment policies are also analyzed: administrative and planning problems, low impact of scientific production, limitations of the Mexican private sector, and the obstacles for technology assessment. Finally, this paper also discusses the main support strategies for science and technology implemented by the Mexican government during the 1980s and the challenges and opportunities that lie ahead.

  10. Editorial: Advanced learning technologies

    Directory of Open Access Journals (Sweden)

    Yu-Ju Lan

    2012-03-01

    Full Text Available Recent rapid development of advanced information technology brings high expectations of its potential to improvement and innovations in learning. This special issue is devoted to using some of the emerging technologies issues related to the topic of education and knowledge sharing, involving several cutting edge research outcomes from recent advancement of learning technologies. Advanced learning technologies are the composition of various related technologies and concepts such as mobile technologies and social media towards learner centered learning. This editorial note provides an overview of relevant issues discussed in this special issue.

  11. ACR-700 advanced technologies

    Energy Technology Data Exchange (ETDEWEB)

    Tapping, R.L.; Turner, C.W. [Atomic Energy of Canada Limited, Chalk River, Ontario (Canada); Yu, S.K.W. [Atomic Energy of Canada Limited, Mississauga, Ontario (Canada); Olmstead, R.; Speranzini, R.A. [Atomic Energy of Canada Limited, Chalk River, Ontario (Canada)

    2004-12-01

    A successful advanced reactor plant will have optimized economics including reduced operating and maintenance costs, improved performance, and enhanced safety. Incorporating improvements based on advanced technologies ensures cost, safety and operational competitiveness of the ACR-700. These advanced technologies include modern configuration management; construction technologies; operational technology for the control centre and information systems for plant monitoring and analysis. This paper summarizes the advanced technologies used to achieve construction and operational improvements to enhance plant economic competitiveness, advances in the operational technology used for reactor control, and presents the development of the Smart CANDU suite of tools and its application to existing operating reactors and to the ACR-700. (author)

  12. Technological Style is History

    DEFF Research Database (Denmark)

    Blond, Lasse

    culture, and just as importantly that culture shapes technology. By looking at a recent transfer of technology this reciprocal exchange is elaborated by considering the cultural or contextual influence in the adaptation of technology. In this connection the notion of technological style is revisited...... by questioning whether it pays due attention to the non-technical factors of the process? In order to compensate for the deficiencies of the technological style as a sensitizing device the concept of sociotechnical style is introduced – a concept more in tune with resent research in technology studies....

  13. Cloud Computing Technologies

    Directory of Open Access Journals (Sweden)

    Sean Carlin

    2012-06-01

    Full Text Available This paper outlines the key characteristics that cloud computing technologies possess and illustrates the cloud computing stack containing the three essential services (SaaS, PaaS and IaaS that have come to define the technology and its delivery model. The underlying virtualization technologies that make cloud computing possible are also identified and explained. The various challenges that face cloud computing technologies today are investigated and discussed. The future of cloud computing technologies along with its various applications and trends are also explored, giving a brief outlook of where and how the technology will progress into the future.

  14. Interoperable and standard e-Health solution over Bluetooth.

    Science.gov (United States)

    Martinez, I; Del Valle, P; Munoz, P; Trigo, J D; Escayola, J; Martínez-Espronceda, M; Muñoz, A; Serrano, L; Garcia, J

    2010-01-01

    The new paradigm of e-Health demands open sensors and middleware components that permit transparent integration and end-to-end interoperability of new personal health devices. The use of standards seems to be the internationally adopted way to solve these problems. This paper presents the implementation of an end-to-end standards-based e-Health solution. This includes ISO/IEEE11073 standard for the interoperability of the medical devices in the patient environment and EN13606 standard for the interoperable exchange of the Electronic Healthcare Record. The design strictly fulfills all the technical features of the most recent versions of both standards. The implemented prototype has been tested in a laboratory environment to demonstrate its feasibility for its further transfer to the healthcare system.

  15. Indoor navigation using Bluetooth Low Energy (BLE) beacons

    OpenAIRE

    Herrera Vargas, Milan

    2016-01-01

    The popularity of indoor navigation has significantly increased during the last decade. Nowadays, many studies aim to develop new indoor navigation systems and improve the accuracy of the already existing ones. Unfortunately, no definitive method for indoor navigation has been approved yet, which is why this type of systems are not as accessible as those used for outdoor navigation. The purpose of this thesis is to introduce the concept of indoor navigation and demonstrate how common elec...

  16. Bluetooth-Assisted Context-Awareness in Educational Data Networks

    Science.gov (United States)

    Gonzalez-Castano, F. J.; Garcia-Reinoso, J.; Gil-Castineira, F.; Costa-Montenegro, E.; Pousada-Carballo, J. M.

    2005-01-01

    In this paper, we propose an auxiliary "location network", to support user-independent context-awareness in educational data networks; for example, to help visitors in a museum. We assume that, in such scenarios, there exist "service servers" that need to be aware of user location in real-time. Specifically, we propose the implementation of a…

  17. Hybrid Indoor Positioning with Wi-Fi and Bluetooth

    DEFF Research Database (Denmark)

    Baniukevic, Artur; Jensen, Christian Søndergaard; Lu, Hua

    2013-01-01

    of the quality of one kind of location-based service, namely routing services. Specifically, the paper presents a framework that enables the comparison of the routes provided by routing services with the actual driving behaviors of local drivers. Comparisons include route length, travel time, and also route...... experiments with real vehicle trajectory data and an existing online navigation service. It is found that the availability of information about previous trips enables better prediction of route travel time and makes it possible to provide the users with more popular routes than does a conventional navigation...

  18. Focus on Technologies: Worry or Technology?

    Directory of Open Access Journals (Sweden)

    Saulius Kanišauskas

    2015-10-01

    Full Text Available The paper analyses different attitudes towards technologies in contemporary philosophical discourses. It points out that classical notion of technology formulated by Martin Heidegger seems to be more and more often questioned and even forgotten. As a result, it is being replaced by the theory of determinism, according to which the change of technologies determines the changes in social systems, the human being including. This happens this way and not vice versa. Nowadays technē, or “technika” (in English: technology is mostly understood in the instrumental meaning or in the meaning of power. It is considered to be a powerful means, tool or mechanism to influence, change, control and manipulate human consciousness and human feelings. Despite the fact that technologies have already been tamed, the problem of huge responsibility for using and developing them arises. It is questioned whether the increasing society’s attention to modern technologies is not a particular “technology” of the postmodern capitalism to manipulate social consciousness. In parallel with “yes” answer to this question, Albert Borgmann’s idea that the causes of technological development have an ontological dimension, i.e. the causes are rooted in the nature of human beings themselves and their desire to adore own creativity, is discussed. Thus, it becomes necessary to probe deeper into the nature of creativity.

  19. General survey of technology management

    International Nuclear Information System (INIS)

    The content of this book are technology and management, conception of technology management, feature and model of technology management system, elements of technology management, performance measurement of technology management, connectivity between technology and business function, system management of technology, manpower management, readership and technology management, motivation and technology management, management of technical investment evaluation, new item development and marketing, product liability management, intellectual property rights and transfer of technology.

  20. Challenges and recent developments in hearing aids. Part II. Feedback and occlusion effect reduction strategies, laser shell manufacturing processes, and other signal processing technologies.

    Science.gov (United States)

    Chung, King

    2004-01-01

    This is the second part of a review on the challenges and recent developments in hearing aids. Feedback and the occlusion effect pose great challenges in hearing aid design and usage. Yet, conventional solutions to feedback and the occlusion effect often create a dilemma: the solution to one often leads to the other. This review discusses the advanced signal processing strategies to reduce feedback and some new approaches to reduce the occlusion effect. Specifically, the causes of three types of feedback (acoustic, mechanical, and electromagnetic) are discussed. The strategies currently used to reduce acoustic feedback (i.e., adaptive feedback reduction algorithms using adaptive gain reduction, notch filtering, and phase cancellation strategies) and the design of new receivers that are built to reduce mechanical and electromagnetic feedback are explained. In addition, various new strategies (i.e., redesigned sound delivery devices and receiver-in-the-ear-canal hearing aid configuration) to reduce the occlusion effect are reviewed. Many manufacturers have recently adopted laser shell-manufacturing technologies to overcome problems associated with manufacturing custom hearing aid shells. The mechanisms of selected laser sintering and stereo lithographic apparatus and the properties of custom shells produced by these two processes are reviewed. Further, various new developments in hearing aid transducers, telecoils, channel-free amplification, open-platform programming options, rechargeable hearing aids, ear-level frequency modulated (FM) receivers, wireless Bluetooth FM systems, and wireless programming options are briefly explained and discussed. Finally, the applications of advanced hearing aid technologies to enhance other devices such as cochlear implants, hearing protectors, and cellular phones are discussed. PMID:15735871