探讨智能建筑安防监控系统

随着我国经济水平的提高,人们的生活理念也发生了极大转变,对于日常生活居所的标准与要求逐渐提高.在现代化的城市发展进程中,智能化建筑的出现极大地增加了建筑物的使用功能.安防监控系统是智能建筑的重要组成部分,同时也是建筑物安全防范管理的有效途径.本文以智能建筑安防监控系统的设计与应用为研究,旨在使科学化的监控手段更好地发挥功效.     

探讨智能建筑安防监控系统

随着我国经济水平的提高,人们的生活理念也发生了极大转变,对于日常生活居所的标准与要求逐渐提高.在现代化的城市发展进程中,智能化建筑的出现极大地增加了建筑物的使用功能.安防监控系统是智能建筑的重要组成部分,同时也是建筑物安全防范管理的有效途径.本文从智能建筑安防监控系统的设计与应用为研究,旨在使科学化的监控手段更好地发挥功效.     

基于DSP28335的矿用电机车微机防滑制动系统

为了更好地提高矿用电机车在较高速度下的工作效率和安全性,在矿用电机车微机防滑制动系统的基础上,以DSP TMS320F28335为核心对矿用电机车防滑制动系统的硬件和软件分模块设计,该设计可以更好地防止电机车产生滑行,加快了系统检测速度,可达到实时监控的目的。采用滑模变结构控制算法,在Matlab/Simulink中进行仿真,仿真结果表明,采用滑模变结构控制算法的矿用电机车防滑制动系统具有更好的制动效果。     

关于甘南县治安视频监控系统的设计与实现研究

随着时代和经济的高速发展,人们的生活水平得到了显著的提高.经济的发展也给社会的治安增加了难度,我国传统的治安管理方式已经不能适应社会和时代发展的要求.为了更好的保障人民群众的权益和生命财产安全,我国正在逐步将计算机技术应用到社会治安监控系统当中.但是对治安视频监控系统的设计和实现方式进行研究,是一个较为复杂的过程.为了使社会的治安管理更加完善,本文从甘南县的基本治安情况出发,对甘南县治安视频监控系统进行了设计,最后对甘南县治安视频监控系统的实现路径进行了研究.     

UML建模方法在高速公路监控系统中的应用

为了提高监控系统软件的设计效率和更好地使用UML进行系统建模,从理论和实践两个方面对UML在软件系统建模方面的应用进行了研究。把整个过程分为全局分析、局部分析、全局设计和局部设计四个阶段详细论述,最后简要介绍了系统的图形用户界面,完成了一个分布式高速公路监控系统的UML分析和设计。     

基于ARM嵌入式局域网视频监控系统的设计与实现

设计了一种基于S3C2410X的ARM9 linux系统组成的远程嵌入式视频监控系统,该系统通过局域网实现对现场情景的监控,首先介绍了ARM处理器的基本结构、性能等情况;然后重点论述了远程监控系统的信息传输方案,就监控软硬件的开发做了简要描述.结果表明,该系统达到设计要求,为应用ARM技术实现远程监控及视频网络传输提供了解决方案.     

基于Cortex-M3的车辆通讯监控终端的设计与实现

本文开发了一种基于Cortex-M3和Python语言的车辆监控系统,简化了软硬件设计的开发难度,提高了开发效率,并定义了通讯协议,最后对系统进行了通讯与定位测试,通过现场总线监控工程车辆的工作参数,通过GSM网络将工程挖掘机的监控信息以短信形式与生产厂家信息管理平台通讯,使生产厂家更好的提供挖掘机系统售后服务。本文网络版地址:http://www.eepw.com.cn/article/233870.htm     

基于ZigBee技术的输液监控系统的设计与实现

为科学有效的监控患者静脉输液过程,研究并设计了基于Zigbee技术的输液监控系统.使用Lab-view设计上位机监控界面,利用槽型光电开关检测点滴滴速,使用无线传输模块收发数据.设计了一种新型电子夹,通过调整步进电机控制电子夹开度大小,控制滴管横截面积,从而达到控制滴速的目的.经实验证明,系统工作稳定,实现了患者输液过程中的远程监控功能,达到了对点滴滴速的控制要求.     

一种主动红外探测报警系统的设计

介绍一种主动红外探测式智能报警系统的设计原理,给出该系统的软硬件设计方法,实现系统的现场报警远程监控的目的.该系统主要通过AT89C2051单片机编程发出PWM载波以控制红外光发射管TSAL6200的发射,同时接收来自接收模块HS0038A2的触发信号,以达到主动探测报警的目的.结合VC 网络编程,从而达到远程监控的目的.     

浅谈原油储备库监控系统的设计

视频监控系统越来越多的应用在各种行业各种地区.针对原油储备库安全防护等级及工程的实际运行要求因地制宜进行监控系统的设计确保监控系统能为储备库的安全防护提供一定的科学决策支持,能达到减少员工的工作量和劳动强度的目的.     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks