基于私有云家庭远程医疗监护系统设计

提出了一种基于私有云的远程医疗监护系统的方案,融合了穿戴式生理参数检测技术、私有云存储技术和ZigBee技术。首先对该系统的总体结构进行了分析和阐述,然后对多生理参数测量终端和私有云主控制中心的硬件结构进行设计,开发各个硬件模块的软件构成远程医疗监护软件系统,实现血氧饱和度、脉搏、体温、无创血压等生理参数测量,ZigBee网络数据传输,私有云存储和WEB网络传输等功能。实验结果表明,该系统在复杂网络环境下均能够获得实时多生理参数和预警。     

基于H.264的远程视频监控系统的设计与实现

采用高性能的H.264视频编码标准,设计开发了一套远程视频监控系统,实现了视音频实时编码同步,及1～24路视频图像的压缩、显示、存储、回放、网络监控等功能.并对该系统进行了分析和测试.     

视频监控在广域网中的实现

文章提出了广域网中视频监控系统的设计方案。该系统采用先进的视频监控技术,充分利用IP网络的传输功能,将监控系统与IP网络有效融合,实现了监控的网络化和数字化。建成后的广域网视频监控系统以实时监控录像为主,系统不仅结构上具备扩展能力,业务上也具备综合应用能力,包括图像传输、远程监控、数字图像数据远程集中存储、远程实时点播回放等。     

网络视频监控系统在信息通信中的应用

本文深入探讨了网络视频监控系统的结构及其在信息通信中的具体应用,涵盖了从前端数据采集到后端数据处理与管理的全过程。系统由网络摄像机、视频编码器、网络传输、服务器存储与管理以及视频管理软件等关键组成部分构成,实现了远程、实时、高清、智能的监控功能。文章还详细分析了信息采集、处理与传输、存储与管理以及用户访问与控制等关键环节的技术原理,并强调了网络视频监控系统在提升公共安全和管理效率方面的重要作用。     

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3G的智能视频监控系统的设计

基于TMS320DM6446处理器和3G网络,设计了一个智能远程无线视频监控系统.该系统能够对采集到的视频内容进行智能分析,将有可能出现隐患的画面或视频进行存储,还可根据控制命令,智能地发送监控信息,包括定时发送、请求发送、事件发送等,这些监控信息可发送到一个或多个接收端.这样既可以避免传统视频监控系统连续录像带来的数据量大的问题,又能非常方便地组成多个监控点联网进行视频监控,具有智能监控、安装方便、隐蔽性好等特点.     

一种远程视频监控系统的实现

介绍了一种基于网络的远程视频监控系统.该系统具有结构合理、功能完善、运行可靠等特点.文章详细讨论了系统总体结构、视频服务器的硬件结构以及系统软件结构的设计.本文对软件设计中所采用的关键技术也进行了阐述.     

基于DM642的远程网络视频监控系统

设计了一个稳定、实用的远程网络视频监控系统,利用网络化的监控系统管理软件,通过TMS320DM642数字图像处理板卡的实时视频分析,实现了对多路视频输入的远程智能监控.描述了整个系统结构设计,分析了系统各模块的工作流程.实验表明该系统具有良好的可扩展性,可以实时、稳健地完成基于网络的远程监控,为多种视频监控算法提供了完整的软硬件平台.     

远程视频监控系统中时间同步的实现

为了使远程视频监控系统能够同步到一个标准时间上,采用了NTP网络对时协议,NTP协议以UTC时间作为时间源,进行层层对准,其毫秒级精度足以满足视频监控系统的需求.针对导航台站远程视频监控系统,设计了时间同步方案,该方案利用现有网络资源,最大程度减少了成本的投入,最后进行了实验测试,证明了该方案的可行性,在实际使用中,该方案可以有效满足导航设备的远程视频监控系统对于时间同步的需求.     

基于Android远程视频监控预警系统的设计

目前国内的视频监控系统主要用于被动的视频录像、存储以及事后取证,依靠人工进行查看、分析,效率非常低.文中采用智能分析设备,IP网络摄像头,视频服务器,短信平台,通过Android智能手机设计了一款基于Android远程视频监控预警系统,极大地降低安防人员的劳动强度以及视频存储的压力,真正意义上实现了全天24小时实时监控.     

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.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

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.     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.