线路绝缘闪络自动监测及定位系统

文中提出的设计构想是当某座杆塔发生绝缘闪络时,监测系统能够自动的将线路名称、故障杆塔的塔号等信息,以无线传输的方式发送给监控中心,指导线路维护人员及时、准确地进行故障检查或维修,从而大大降低线路维护人员的劳动强度,节约开支,减少线路的潜在隐患和停电时间,提高输电线路的安全可靠性.     

Artificial Neural Network Expert System for Integrated Heart Rate Variability

This paper describes the combination of an expert system for bio-information with smart devices using a wireless sensor network. A wireless bio-sensor module acquires physiological signals, including electrocardiogram, heart rate, heart rate variability (HRV) and autonomic nervous system activity. The smart device transmits the bio-information over a wireless network to a real-time expert consultation function for analysis, storage and decision making. An artificial neural network algorithm detects the HRV parameters and examines them for features of diabetes. A centralized internet information service platform can interrogate the remote client at any time for its bio-information. In addition, the system platform can compare data files. Bio-information and diabetes information can trigger timely alert messages. The system described in this paper could be the basis for a ubiquitous mobile physiological monitor.     

基于ZigBee技术的医疗监测的无线网络系统的研究

本文依据了zigBee技术的低功耗、低复杂度、低成本等特点,通过zigBee技术提供无线数据传输功能,旨在将病患的某些生理参数通过无线网络技术快速实时地发送给医护工作人员,并及时地进行数据分析和对有问题的病患进行治疗处理。基于zigbee技术的医疗监测的无线系统实现了快速对病患的温度指标进行实时监测,解决了医护工作人员在工作过于繁忙之际无法对病患进行逐个检查,或者患者因故不在病房而影响检查等问题,保障了在医院就医的病患能够在自由活动的情况下进行生理参数的测定。另外,该系统易于安装,也为无线网络技术在医疗监测中的应用提供了新的天地。     

基于无线传感技术的接触网导线接头及换相点温度监测系统

为了确保铁路接触网的稳定运行,设计了一种电气化铁路接触网导线接头及换相点温度监测系统,通过温度传感器检测高压部分的温度,采用两级无线数据传输网络实现温度的实时传输。第1级采用自由频段的短距离无线通讯方式,第2级采用不受地区限制的GPRS网络传输方式,用户通过远端数据监测中心软件可以方便地对监测信息进行远程管理,实现对各处接触网导线接头及换相点温度信息的调阅、查询和监测报警。     

基于ZigBee技术的煤矿井下人员定位系统研究

基于对ZigBee技术的研究,设计了一种煤矿井下人员定位系统。采用微功率无线收发器(FFD)可以实时对井下佩戴微功率定位信号发射机(RFD)的工作人员进行定位、身份识别。由无线收发器采集到的信息通过无线网络传送到地面,一方面实现了井下人员的考勤统计,另一方面为查询矿井中的人员分布情况提供了依据,实现高效救援,适用于各类环境下煤矿的安全管理。     

基于无线射频和GPRS网络的林火监测数据采集电路设计

本监测系统利用无线射频与GPRS网络相结合的方式,监测终端将温度传感器与烟雾浓度传感器采集到的数据通过无线射频发送到基站,再通过基站的GPRS网络将数据发送到监控中心,来实现对林火的实时监测。通过监控中心对整个网络的控制,可以实时监测森林的状况。本监测系统结合无线射频和GPRS网络的优势,无线射频使监测终端更加方便安装,GPRS网络可以实现远程监控管理。本监测系统可以通过短信、服务器、定时和报警触发方式启动,可以实时采集现场数据。本设计的硬件电路以LPC767芯片为核心,采用RF200无线射频芯片和MC55模块进行了各种外围电路设计,采取了低功耗与抗干扰措施。制作出了电路板,并且完成了部分功能的测试。     

全国短波监测网络系统的设计与实现

阐述了一种全国短波监测网络系统的设计与实现方案。该系统实现了短波监测的实时监测和非实时监测功能，实现了频谱数据、台站信息的管理和与国家无线电管理中心数据库无缝链接的功能，并具有自动控守扣报警功能。此外，还实现了与ARGUS无线电监测软件XML接口的链接，满足了异构监测数据交换的需求。系统采用模块化结构，由一系列标准模块组成,具有良好的可维护性和可扩展性。     

车载双模无线视频监控系统的设计与实现

设计并实现了一种基于WCDMA和CDMA2000 EVDO无线3G网络的车载式双模无线视频监控系统。介绍了车载式视频监控终端嵌入式设备的整体硬件结构,以及相应功能模块定义和说明。从系统总体结构、主要流程图和关键技术等方面详细描述了监控中心的软件实现。测试结果表明,该车载式监控系统充分利用WCDMA和CDMA2000 EVDO双模网络进行数据传输,相比于传统单模视频传输系统,有效提高了视频传输质量。     

基于ZigBee的远程医疗监护系统研究与实现

针对我国医疗资源紧缺及预防治疗体系不够完善的现状,基于ZigBee通信协议的无线传感器网络技术构建了一种基于社区范围实时监护的远程医疗监护系统。该系统由上位PC机、ZigBee无线单片机套件、传感器节点、传感器模块组成,该系统将测量到的各种生理信号通过无线传感器网络传输到医疗监护中心,以做出诊断救治。     

Pervasive, secure access to a hierarchical sensor-based healthcare monitoring architecture in wireless heterogeneous networks

This study presents a healthcare monitoring architecture coupled with wearable sensor systems and an environmental sensor network for monitoring elderly or chronic patients in their residence. The wearable sensor system, built into a fabric belt, consists of various medical sensors that collect a timely set of physiological health indicators transmitted via low energy wireless communication to mobile computing devices. Three application scenarios are implemented using the proposed network architecture. The group-based data collection and data transmission using the ad hoc mode promote outpatient healthcare services for only one medical staff member assigned to a set of patients. Adaptive security issues for data transmission are performed based on different wireless capabilities. This study also presents a monitoring application prototype for capturing sensor data from wireless sensor nodes. The implemented schemes were verified as performing efficiently and rapidly in the proposed network architecture.     

基于ZigBee的可穿戴式跌倒监护系统

提出了一个可以进行远程报警的无线跌倒监控系统.跌倒检测是通过佩戴在人体的终端设备获取人体运动时产生的加速度信号,然后通过跌倒算法对数据进行处理识别.终端识别跌倒信号后,通过ZigBee无线网络将信号传输到网关,网关通过发送AT指令到SIM300模块来发送报警短信到监护人手机上.实验结果表明,系统可以100％检测到人体跌倒,使医护人员及家属在5s内收到跌倒报警信息.     

基于ZigBee的物联网智能家居系统

提出了一种物联网智能家居系统,该系统以ARM微处理器LC1813为核心,采用客户端/服务器模式,通过Internet局域网和无线局域网接入到公共网络,在家庭内部通过CC2530无线发送芯片的Zigbee无线网络将家用电器与其他监控设备连接在一起组成无线家庭网络;通过手机客户端和Windows客户端对家庭内部或电器设备进行监控;经实际测试结果表明,系统组网方便、运行稳定,能达到物联网智能家居系统的一般要求。     

基于ARM7的远程视频监控系统

利用ARM7芯片LPC2478实现了低功耗远程实时视频监控系统。该系统主要针对电力线的监控,提高电力线的安全性。主要从硬件方面叙述系统各部分的组成及实现方式,该系统的硬件部分以LPC2478为MCU（微控制器）,还包括电源、视频采集／编码、气象传感器及无线通信等部分。该系统的监控中心通过无线网络控制下位机对现场视频及气象数据进行采集,再对数据进行相应处理,然后将数据发送到监控中心。本系统已经在实际中应用,系统运行良好。     

基于ARM Linux的3G无线车载视频监控系统

为了加强客运服务中心对长途车辆在客运过程的监管,提出了基于ARMLinux的3G无线车载视频监控系统。该系统基于ARMLinux嵌入式系统与ARM处理器,通过USB摄像头采集车内视频数据,由GPS定位模块获取车辆的位置数据,然后将采集的数据经过H．264压缩成适合网络传输的形式。最终通过3G无线发射模块经过具有宽带传输能力的3G移动通信网络传输给监控服务中心,监控服务中心可以看到车内清晰流畅的视频画面以及车辆所在位置。     

TelG Mote: A Green Wireless Sensor Node Platform for Smart Home and Ambient Assisted Living

The wireless sensor network (WSN) consists of sensor nodes that interact with each other to collectively monitor environmental or physical conditions at different locations for the intended users. One of its potential deployments is in the form of smart home and ambient assisted living (SHAAL) to measure patients or elderly physiological signals, control home appliances, and monitor home. This paper focuses on the development of a wireless sensor node platform for SHAAL application over WSN which complies with the IEEE 802.15.4 standard and operates in 2.4 GHz ISM (industrial, scientific, and medical) band. The initial stage of SHAAL application development is the design of the wireless sensor node named TelG mote. The main features of TelG mote contributing to the green communications include low power consumption, wearable, flexible, user-friendly, and small sizes. It is then embedded with a self-built operating system named WiseOS to support customized operation. The node can achieve a packet reception rate (PRR) above 80% for a distance of up to 8 m. The designed TelG mote is also comparable with the existing wireless sensor nodes available in the market.     

基于无线射频和GPRS网络的室温分级监测系统

本文介绍使用无线射频和GPRS技术来实现对北方冬季集中供热达到室温效果进行实时监测,通过用户距离换热站远、中、近进行科学布点,将监测到的室温数据通过无线通讯网络传输到监控中心.监控中心安装上位监控系统软件,将采集到的数据进行统计、汇总,并进行数据分析,辅助制定供热调度方案,从而达到节约热能和科学调度热能资源的效果.该系统既能避免因供热温度过低而引起的用户投诉和纠纷,也能减少因供热温度过高而导致的能源浪费,该监测系统具有良好的社会效益、环境效益和经济效益.     

基于无线射频技术的无人值守病房监护系统

鉴于目前病房人工监护存在可靠性不足和成本过高的问题,研制了基于无线射频技术的无人值守病房监护系统。该系统可实时监测病人的体温、心率和呼吸频率等生理参数,并将采集到的生理参数通过无线收发模块传到上位计算机,由一人对多病房集中监护,实现了病房监护的无人值守,提高了监护效率和可靠性,具有较大的应用价值。     

The integration of ad hoc sensor and cellular networks for multi-class data transmission

This paper targets mobile telemedicine applications that can be supported using third generation (3G) cellular networks, to provide highly flexible medical services. On the other hand, large-scale Ad hoc Sensor Networks (ASN), when deployed among mobile patients who may carry different kinds of micro-sensors to measure ECG, blood pressure, basal temperature or other physiological data, can provide a dynamic data query architecture to allow the medical specialists to monitor patients at any place. So far very little research has been conducted to explore the possibility of integrating ASN with mobile telemedicine. In this paper: 1. we suggest an integrated architecture that takes advantage of the low cost mobile sensor networks and 3G cellular networks to support multimedia medical calls with differentiated Quality-of-Service (QoS) requirements. 2. We propose a low-energy, distributed, concentric-zone-based data query mechanism that has the advantages of both proactive and reactive ad hoc routing algorithms to collect medical results from large-scale mobile patients for medical specialists who use cellular network to report patient data to the medical center. 3. In order to minimize the ambulance wireless call-dropping rate, we adopt accurate resource reservation call admission control (CAC) scheme to allocate the necessary bandwidth in the destination cell. 4. In order to meet the QoS requirements of patients’ wireless calls, we use dynamic guard channel CAC scheme to keep their handoff-call dropping rate below a certain threshold. We evaluate the validity of our schemes through simulations and analyze their performance. Our results clearly indicate the efficiency of the proposed CAC and sensor network query algorithms to meet the multimedia telemedicine QoS requirements.     

A mobile care system with alert mechanism.

Hypertension and arrhythmia are chronic diseases, which can be effectively prevented and controlled only if the physiological parameters of the patient are constantly monitored, along with the full support of the health education and professional medical care. In this paper, a role-based intelligent mobile care system with alert mechanism in chronic care environment is proposed and implemented. The roles in our system include patients, physicians, nurses, and healthcare providers. Each of the roles represents a person that uses a mobile device such as a mobile phone to communicate with the server setup in the care center such that he or she can go around without restrictions. For commercial mobile phones with Bluetooth communication capability attached to chronic patients, we have developed physiological signal recognition algorithms that were implemented and built-in in the mobile phone without affecting its original communication functions. It is thus possible to integrate several front-end mobile care devices with Bluetooth communication capability to extract patients' various physiological parameters [such as blood pressure, pulse, saturation of haemoglobin (SpO2), and electrocardiogram (ECG)], to monitor multiple physiological signals without space limit, and to upload important or abnormal physiological information to healthcare center for storage and analysis or transmit the information to physicians and healthcare providers for further processing. Thus, the physiological signal extraction devices only have to deal with signal extraction and wireless transmission. Since they do not have to do signal processing, their form factor can be further reduced to reach the goal of microminiaturization and power saving. An alert management mechanism has been included in back-end healthcare center to initiate various strategies for automatic emergency alerts after receiving emergency messages or after automatically recognizing emergency messages. Within the time intervals in system setting, according to the medical history of a specific patient, our prototype system can inform various healthcare providers in sequence to provide healthcare service with their reply to ensure the accuracy of alert information and the completeness of early warning notification to further improve the healthcare quality. In the end, with the testing results and performance evaluation of our implemented system prototype, we conclude that it is possible to set up a complete intelligent healt care chain with mobile monitoring and healthcare service via the assistance of our system.     

基于ZigBee无线传感器网络的智能家居设计

根据智能家居的特点和需求,选用基于ZigBee无线传感器网络技术,实现以其低功耗,优秀组网能力等特点,在家用系统控制、楼宇自动化、工业监控领域的应用。介绍了ZigBee网络的特点和应用前景,描述了ZigBee协议,对ZigBee无线传感器网络体系结构做了分析,对于网络的设计和节点的加入等进行了具体的分析和研究,说明了系统能够对家居环境进行良好的监控。