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关键词： 企业应用   RFID   展示   Intemet   传感器技术   传感器应用   加州大学   冷冻食品   供应链  

摘要： 加州大学洛杉矶分校移动企业无线Intemet联盟（UCLAWINMEC）将于10月26日举办一个行业论坛，讨论RFID的企业应用以及成功与失败的经验。它还将展示10到15个正在WINMEC开发的应用项目。这些项目将RFID的应用扩展到传感器技术。这些传感器应用从跟踪在供应链中流动的冷冻食品到跟踪医院中的药品供应。

关键词： 无线传感器   澳大利亚   网络论坛   传感技术   传感器技术   传感网络   研究成果   技术创新  

摘要： 根据来自澳大利亚NICTA组织的消息，一个无线传感器网络论坛于11月底开始在澳大利亚进行，其宗旨是为了促进快速增长的无线传感网络在产业和研究领域的协作、研究成果的共同分享和新型传感器技术的消化和吸收，鼓励进一步的技术创新。

关键词： 传感器技术   MEMS   多传感器数据融合   光纤气体传感器   电容式传感器   超声波传感器   目次  

关键词： 微型流量传感器   MEMS   最新进展   MEMS技术   微电子机械系统   科研工作   工业生产   传感器技术   微流体   检测参数  

摘要： 流量测量是工业生产和科研工作的重要的检测参数.近年来,随着对微电子机械系统(MEMS)的深入研究和取得的进展,传统的工业和流体力学研究的流量传感器向高集成度,微型化,高精度,高可靠性方向发展,同时生命科学的发展大大促进了用于微流体,生物学、医学、卫生、食物等学科研究新型微型流量传感器的研究开发,微型流量传感器已成为MEMS的重要研究方向.本文对基于MEMS技术的流量传感器技术的原理、分类作了简要介绍,归纳和评述了各种基于MEMS技术的流量传感器(热式型,差压型,升力型,流体振动型,科里奥利型及仿生型微型流量传感器等)的生产工艺和应用特点,并对基于MEMS技术的微型流量传感器的校正方法做了总结归纳.介绍了国内在微型流量传感器方面的研制工作.最后总结归纳出基于MEMS技术的流量传感器发展不同阶段并阐述了各个阶段的发展特点,并对基于MEMS技术的流量传感器新的发展趋势进行了展望.

关键词： 多传感器技术   现状   存在问题  

摘要： 综合国内外的文献,讨论了多传感器技术应用的目的、应用场合,总结了多传感器信息融合、多传感器阵列技术、多传感器的管理等,主要的多传感器技术及方法。并在此基础上,结合作者的研究经验,给出了多传感器技术中静态特性标定、动态特性分析、误差分析等,以及有待解决的问题;展望了未来多传感器系统的前景。为传感器技术领域的科学工作者提供了一个关于多传感器技术的视窗,并给出了多传感器技术有待研究的方向。

关键词： 智能交通   智能运输系统   地面运输系统   传感器技术   技术应用   道路设施   电子技术   信息技术   技术集成   系统工程  

摘要： 1 我国智能交通技术应用的亮点智能运输系统是在较完善的道路设施基础上,将先进的电子技术、信息技术、传感器技术和系统工程技术集成运用于地面运输的实际需求,建立起全方位、实时准确、高效的地面运输系统.

关键词： inline sensor   process control   fibre optic   fat concentration   whey  

摘要： Improving syneresis control in cheese making may require the development of an optical sensor technology to measure whey fat content during processing. Light sidescatter and transmission responses as a function of-whey fat concentration (0-0.9%) were measured using a fibre optic spectrometer (300-1100 nm) to determine if an optical correlation could be developed. Normalized spectral responses versus fat concentration followed a power function. Waveband ratio combinations were calculated and tested for prediction of whey fat concentration using two prediction models. The best regressions were found to use sidescatter ratios as predictors and typically contained numerator and denominator ratio wavebands in the ranges 725-1025 and 375-475, respectively. S-875/425, the ratio calculated by dividing the normalized sidescatter intensity at waveband 875 by that at 425 nm, was found to be related to whey fat concentration (R-2 = 0.99) using an exponential model. These results suggest that whey fat concentration during syneresis could be measured with an inline fibre optic sensor. (c) 2004 Elsevier Ltd. All rights reserved.

关键词： Environmental monitoring   Wireless technology   ZigBee sensor technology   ZigBee wireless technology   sensor network   wireless connectivity infrastructure   wireless sensor networks   wireless-sensor technology  

摘要： As wireless-sensor technology improves, an increasing number of organizations are using it for a wide range of purposes. Users are working with the technology to monitor and automate home, building, industrial, and agricultural systems, including thermostats and security products. To achieve technological and marketplace success, the low-power, inexpensive sensor networks need an economical, low-latency, robust, energy-efficient, wireless connectivity infrastructure. With this in mind, users are increasingly working with ZigBee technology.

关键词： drift counteraction   fast recognition   gas sensors   Gaussian mixture model (GMM)  

摘要： Among the most serious limitations facing the success of future consumer gas identification systems are the drift problem and the real-time detection due to the slow response of most of today's gas sensors. This paper shows that the combination of an integrated sensor array and a Gaussian mixture model permits success in gas identification problems. An integrated sensor array has been designed with the aim of combustion gases identification. Our identification system is able to quickly recognize gases with more than 96% accuracy. Robust detection is introduced through a drift counteraction approach based on extending the training data set using a simulated drift.

摘要： The article reports that expanded Smart Sensor technology capabilities for the Selcom® SLS 5000 series laser vision sensors integrate data collection and control software functions within the laser head.