基于IEEE1451标准的IP传感器的设计与实现

基于简化的IEEE1451智能传感器信息模型，提出了基于嵌入式Internet技术的IP传感器模型，并进行了原型实现。分析了IP传感器的网络时延问题，并在网络环境下对其时延性能进行了测试。实验结果表明，所设计的IP传感器可广泛应用于分布式网络化传感、测量和控制系统。     

基于嵌入式Web服务器的智能园区监控系统

本文介绍了一种基于嵌入式Web服务器的智能园区监控系统.该系统采用嵌入式Internet技术、计算机网络技术和总线技术,将基于TCP/IP协议的计算机网络结构与基于NHB总线有机结合,实现在局域网乃至Internet网上对智能园区的设备实时监控.     

面向设备e-维护的嵌入式网络化智能单元的实现

鉴于敏捷制造对制造过程管理与维护的需求，研究并建立了制造系统智能维护单元的原型。提出了基于Internet的嵌入式智能维护单元的基本构架，介绍了其实现方案，在此基础上构建了远程维护系统模型，并针对系统的可靠性、网络化和智能化要求，提出了基于多参数集成智能维护单元的网络维护解决方案和系统关键技术。分析了基于嵌入式智能单元的维护技术的应用特征和发展前景。     

嵌入式IP传感器在远程监控系统中的应用

该文在对嵌入式IP传感器分析的基础上，针对不同传感器、不同没备与Internet互连提出了具体的实现方法，并在此基础上开发了一套远程监控洗农机的系统。文章描述了该系统的体系结构以及各组成部分的工作原理和相关软硬件。     

基于嵌入式web传感器的新型瓦斯监测防爆系统

结合煤矿井下安全监测系统的改进和管理需要,分析了井下监测系统的特点,提出了基于嵌入式Web传感器的新型瓦斯监测防爆系统的设计思路、方法以及具体的硬件实现,并对基于μC/OS-Ⅱ操作系统技术的嵌入式Web开发研究和分析设计做了详细说明。该方法采用ARM7TDMI微处理器内核芯片构建嵌入式Web智能传感器,利用传感器从现场环境获取了相关参数,并通过内嵌的以太网网络接口直接将数据发往监控浏览器或数据接收服务器,保证了瓦斯参数的实时监测并利用软件对参数进行实时分析,可以对事件进行较好的预测功能,除此之外还可将系统连入互联网中,实现矿井环境参数的远程访问。     

基于XML和ASP的分布式产品数据管理系统的研究与实现

提出了一种基于XML Web Services和ASP的分布式产品数据管理系统的解决方案。系统以ASP平台为载体，Web Services为纽带，实现了企业动态联盟产品数据的分布存储和集中管理。在对系统模型重新分析的基础上，研究了基于Internet的系统体系结构模型并阐述了模型的技术特点。最后给出了一个开发实例。     

基于ARM的乳化液泵站远程监控系统

提出了一个基于ARM的乳化液泵站的远程监控系统设计方案,通过嵌入式系统Web服务器和Internet实现对乳化液泵站的远程监控。介绍了嵌入式远程监控系统的组成及结构,其中重点介绍了嵌入式Web服务器的组成与实现。     

基于IPv4/IPv6双栈嵌入式Web传感器网络接口设计

本文提出了一种基于微控制器的服务器的设计理念,实现了基于IPv4/IPv6的嵌入式Web传感器.重点论述了基于双栈的嵌入式Web传感器网络接口的设计,并分析了HTTP有限状态机和Web服务器功能的实现.     

嵌入式Web服务器在智能小区中的应用

系统采用嵌入式Internet技术、计算机网络技术和现场总线技术，将基于TCP／IP协议的计算机网络结构与基于NHB总线的现场总线结构有机地结合起来，实现在局域网乃至Internet网上对智能小区的设备实时监控。     

基于嵌入式智能单元的网络维护系统研究

基于敏捷制造对制造过程管理与维护的需求，研究并建立了制造系统智能维护单元的原型。分析了国内外相关产品，介绍了基于Internet的嵌入式智能维护单元的结构及实现，构建了远程维护系统模型和应用实例，并针对该系统高可靠性、网络化和智能化的要求，提出了基于多参数集成智能维护单元的网络维护解决方案和系统关键支撑技术，并指出其应用领域及前景。为计算机集成制造及产品在全生命周期中所提供的功能和价值持续能力的发挥，提出了一种可靠的网络化维护机制。     

基于因特网的远程家居自动控制系统研制

提出了一种基于因特网的远程家居自动控制系统解决方案,给出了系统各组成部分的硬件、软件详细设计与具体实现.系统由基于C8051F005单片机的嵌入式控制器和家居Web服务器组成,嵌入式控制器有8路A/D转换通道和32个I/O端口,用于连接传感器和控制家电设备,嵌入式控制器通过RS232串口同家居Web服务器进行通讯,Web服务器设有基于JSP技术构建的自动控制网站,用户可通过嵌入式控制器或WWW浏览器控制家电设备.系统采用动态DNS技术将动态IP地址映射为一个固定域名,通过此域名可方便地访问家居自动控制网站实现对家居的远程监控.系统扩展灵活、功能强,价格低廉.     

基于嵌入式多参量传感器的智能轴承

提出了一种新型的基于嵌入式多参量传感器的智能轴承结构。多参量复合传感器包括2个微型振动加速度传感器、2个微型转速传感器和2个微型温度传感器。通过轴承外圈上的槽式结构,将复合传感器与轴承端面进行嵌入式结合,实现对轴承运转过程中水平和垂直地面两方向的振动信号、轴承转速信号、内圈(轴)和外圈温度信号的采集。对其原理样机进行了实验验证,验证结果表明,该智能轴承监测参数准确,其参数监测和故障诊断能力较传统的方式更具优越性。     

Nickel particle-based self-sensing pavement for vehicle detection

In this paper, a new self-sensing pavement for vehicle detection is designed. Smart nickel particle filled cement-based sensors with high sensitivity are used as vehicle detector. The sensor array is embedded into a concrete pavement to form the self-sensing pavement. The vehicle detection capability of this pavement is investigated in outdoor road tests. Experimental results show that the proposed self-sensing pavement can accurately detect the passing vehicles. This finding indicates that the self-sensing pavement embedded with smart cement-based sensors has a great potential for traffic detection and monitoring.     

Embedded web server for monitoring environmental parameters

In this communication a design of embedded web server based on the Ethernet technology for remote monitoring of weather parameters is presented. This web server monitors parameters viz. temperature and humidity and transmits this information in the form of HTML web-page. The input sensors LM35 semiconductor temperature sensor and SY-HS-220 humidity module have been employed, providing accuracy about 1° centigrade and 2% relative humidity. The web server provides simultaneous access to multiple nodes on the network.     

Fault detection and signal reconstruction for increasing operational availability of industrial gas turbines

The paper presents a generalization of multi-dimensional linear regression to facilitate multi-sensor fault detection and signal reconstruction through the use of analytical optimization. The proposed methodology is founded upon the solution of an optimal signal reconstruction problem. The technique is applied to the real time monitoring of exhaust gas temperature sensors and burner-tip temperature sensors, of a 14 MW industrial gas turbine. Key benefits of the proposed technique are that it facilitates (i) real-time detection of sensor faults and the number of sensors that are at fault in a multi-sensor system; (ii) reconstruction of measurements that would normally be expected from the sensor at fault—thereby facilitating improved unit availability; (iii) determining the minimum number of non-faulty sensors that are required to be available to continue unit operation without unduly compromising performance. The use of an analytical formulation to determine (i–iii) means that the resulting technique incurs low computational overhead and is readily applied to real-time monitoring and subsequent remedial action. Experimental results demonstrate the efficacy of the developed procedures to facilitate continued unit operation in the event of sensor faults. Whilst the application to industrial gas turbine machinery is used to focus the study, it should be noted that the proposed techniques are much more widely applicable to numerous industrial and commercial systems.     

Concrete beam crack detection using tapered polymer optical fiber sensors

In this paper, a tapered polymer fiber sensor (TPFS) is employed to detect the crack of Concrete Beam (CB). The sensing principle for crack detection is simply described based on V-number theory. The experiments are carried out by cement mixture mixed with high reactive powder to form the CB, in which the TPFSs are embedded and surface glued. Thermocouples and strain gauges are also embedded to calibrate and determine the ambient temperature and applied strain, meanwhile, the Linear Variable Differential Transformer (LVDT) sensors are used to measure the deflection of the CBs. Four points loading test is applied for several samples to evaluate the sensors’ ability for monitoring the beam deflection and crack. Experimental results also indicate that the TPFSs can be used for post-crack detection.     

Inner strain determination of three-dimensional braided preforms with co-braided optical fiber sensors

The experimental characterization of three-dimensional (3-D) braided composites is extremely important for their design and analysis. Because of their desirable attributes and outstanding performance, optical fiber sensors (OFSs) can be embedded to monitor mechanical properties of textile composites. This paper discusses two techniques to incorporate different OFSs into 3-D braided composite preforms. The operating principle of various sensor systems is first conducted. Experiments using Michelson interferometers, FBG sensors, and micro-bend sensors are performed to verify the concept of the proposed method. Strain curves of various OFSs tests are finally compared, and they all exhibit good linearity.     

Inner strain determination of three-dimensional braided preforms with co-braided optical fiber sensors

The experimental characterization of three-dimensional (3-D) braided composites is extremely important for their design and analysis. Because of their desirable attributes and outstanding performance, optical fiber sensors (OFSs) can be embedded to monitor mechanical properties of textile composites. This paper discusses two techniques to incorporate different OFSs into 3-D braided composite preforms. The operating principle of various sensor systems is first conducted. Experiments using Michelson interferometers, FBG sensors, and micro-bend sensors are performed to verify the concept of the proposed method. Strain curves of various OFSs tests are finally compared, and they all exhibit good linearity.     

柔性曲面形状检测传感网络设计

针对太阳能帆板等柔性曲面检测,其动态变形检测难度大。用光纤光栅（Fiber bragg grating,FBG）设计曲面传感阵列,利用空分复用和波分复用技术构建传感网络检测系统。传感器网络的数目根据波动理论和检测仪器的最大解调范围确定;传感网络在曲面的分布根据曲面应力状况和变形特点进行植入式分布,在振幅最大的位置布置传感器,在曲面应变大的位置布置稠密,反之稀疏,根据曲面变形的有限元模型,实现模拟太阳能帆板柔性曲面传感网络设计。并对传感网络的检测精度进行试验,试验表明此传感网络中传感器检测具有良好的线性关系,传感网络中传感器布置位置合理,传感网络能够检测帆板的多种变形。传感器封装在保持40 mm的长度中,传感器测试误差仅有0.4％,柔性曲面测试误差小于4%。