基于无线传感器网络的智能家居系统设计

无线传感器网络通过集成化的微型传感器实时监测、感知和采集各种环境信息;而智能家居系统的设计是通过一个相当于住宅神经的家庭控制网络来控制家庭内部各个家电设备;文章把传感器网络引入到智能家居中,设计了一个基于传感器网络的家居设备监测控制管理系统。文章对系统的各个模块给出了具体的设计方案,并介绍了系统的实现流程。     

基于GSM模块的远程控制和报警系统

介绍了一种基于GSM/GPRS网络的无线远程控制和报警系统,详细阐述了系统的组成结构和软硬件设计。该系统采用GSM/GPRS模块发送接收短消息和彩信,从而实现对家居安全状况的远程监控。选用多种传感器采集家居信息,通过无线收发模块传递到主控制器,运用信息融合技术,获得可靠的报警信息。业主接到报警信息后,回复短信可以控制和处理现场情况,达到保证家居安全和防盗的目的。     

基于多种无线技术融合的智能家居控制平台

设计了一种基于多种无线技术融合的智能家居控制平台,整个系统用了四种无线方式来进行数据传输和通信,ZigBee、蓝牙、web和GSM,实现了控制家用电器的多种方式.该系统使用了ZigBee自动组网的方式构建家居内部网络,以蓝牙,web和GSM短信为控制方式的通信手段,通过三种无线方式控制家庭电器..     

基于Zigbee的实时能源监控和控制系统

智能家居技术的使用在家居或建筑节能方面具有很大的潜力。本文提出一个基于Zigbee的能源管理系统。该系统由两个主要组件构成,无线传感网络和智能家居网关。通过智能家居网关,无线传感器感知和传输电力数据,远程监控和控制家用电器;通过网络和移动设备,节能系统允许用户监测和控制家用电器。     

基于STM32的智能家居无线激光报警系统

以STM32为核心,设计了智能家居无线激光报警系统。该系统由单片机控制模块、GSM无线发送接收模块、矩阵键盘模块、声光报警模块、热释电激光传感器模块组成。通过热释电激光传感器采集相关信号,单片机STM32经过处理后控制声光报警模块发出报警信号,并将报警信号通过GSM短信模块发送至用户手机上,实时反馈报警地点的情况。该系统利用广泛的移动网络,不需要组建专用网络和维护网络,较传统的监控系统有着独特的优势。     

一种基于ZigBee及GSM混合网络的轻智能家居安防系统设计

针对传统智能家居成本高,系统复杂,安装维护困难,未实现个性化定制等问题,设计了一套基于ZigBee及GSM网络的轻智能家居安防系统,包括系统整体架构、实现方案以及多样化远程监控方式。该系统采用ZigBee网络与GSM网络相结合技术实现了对家居设备进行信息采集、指令控制、远程监控的功能,可广泛应用于防火防盗、安全监控和安防等领域。     

智能家居控制系统的设计

主要研究了如何基于上海未来伙伴机器人有限公司的创新套件与自制单片机控制系统设计一套智能家居控制系统,将结构部件、连接部件和传动部件以及传感器完美得组合在一起,通过能力风暴控制器、单片机系统、无线模块、GSM模块等,实现了家居的无线控制、远程控制、温控、安防控制等功能,使人们的生活更加便捷、安全、舒适。     

智能家居系统中无线传感器网络的设计

介绍了ZigBee无线传感器网络,将ZigBee技术应用到智能家居系统中。提出了一种以ZigBee技术为基础的智能家居系统设计方案。阐述了无线传感器网络的总体构成,以CC2430无线芯片为核心,选取了合适的ZigBee模块进行了硬件电路设计。研究并分析了ZigBee技术。设计并实现了串口收发程序,传感器程序,以及节点间的无线通信程序,并根据ZigBee协议,使节点组成树状网络,最终实现系统的监测与控制。结果表明,本系统运行稳定,达到了设计目的,有着广泛的应用前景。     

无线智能家居网络系统设计与应用

本文设计了一种以ZigBee和GSM/3G网络技术为核心的低功耗高性能的无线智能家居网络系统,并将其用于家居的环境监测、安防系统和家电的控制管理。该系统工作性能稳定,在数据采集和传输等方面达到了预期设计目标,尤其是在简化设备安装布线,提高系统移动性和便携性以及远程传输和应用管理方面效果十分显著。     

智能家庭监控报警系统的设计

设计了智能家庭监控报警系统以实现对家居安全的实时监控。系统采用了单片机技术、WIFI、蓝牙和GSM/GPRS网络进行设计,能够通过手机接受报警信息和远程指令;同时引入多种传感器和继电器实现了对家中基本情况、安全隐患等的远程控制。实验结果表明,所设计的系统能够实现安全、便捷的智能家居远程监控,具有较高的可用性和可靠性。     

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.