基于MSP430的智能家居环境控制系统设计

<正>现代人对智能家居环境设计的终极要求是环境舒适、安全、便捷。本文依此要求为目的设计一个智能化的家居环境,本设计采用MSP430单片机作为整个系统的核心处理器,利用DS18B20温度传感器、MQ-7一氧化碳气体检测模块、HC-SR501红外防盗模块、GY30光敏传感器等模块对家居环境中的温度、CO、光照强度、红外线等进行实时检测与预警。并且配合使用声光报警电路、换气扇继电器、灯光继电器等后端调控器件,对温度、CO浓度、光强等物理量进行适当的调控。经过硬件测试和软件调试之后,本系统可以满足对温度、CO、光强、红外等物理量的检测与监测功能,     

基于STC51的智能窗户系统研究

文章设计了具有自主决策功能的智能窗户系统。以STC15系列增强型单片机为核心,设计了具有步进电机驱动模块;限位开关构成的窗户状态模块;红外感应、雨水检测、燃气检测等传感器模块和Wi Fi模块的智能窗户系统。齿轮、齿条组成的机械结构较好的解决了无损安装、结构简单、稳定可靠的问题,具有友好的人机交互界面。     

新型智能红外线防盗系统设计

该防盗系统采用红外线反射式,属于主动探测防盗系统,可以通过固定电话网络实现远程报警,并利用照相机自动拍照。该系统主要由中央处理模块、红外收发模块、键盘电路和报警模块组成。所设计的系统具有低成本、结构简单、工作可靠、实用性强等优点。     

红外线同声传译系统及其技术发展

红外线同声传译系统的工作原理是利用红外线传输进行语言分配。IEC 61603 BAND Ⅱ频段的红外同传译系统很容易受到高频驱动光源（如节能灯）的干扰,因此能够避开高频驱动光源干扰的IEC61603 BAND Ⅳ频段的红外同传系统将逐渐成为市场的主流。     

基于红外传感监测的实验室开放系统设计

早期实验室开放系统预约效果差,已经无法满足用户需求,为了避免以往系统带来的弊端,提出基于红外传感监测的实验室开放系统设计。根据硬件结构设计控制模块、管理模块和监控模块,其中,控制模块包括门控和灯控,通过在门上安装普通磁力锁,附带门磁装置,能够直接控制开关,并及时发送报警信号。采用继电器控制PT8A2621型号红外线感应式人体灯控芯片,并分析各个引脚的连接情况。设计实验室预约和用户预约管理模块,使用W5500集成TCP/IP协议栈,实现管理模式下的预约监控。采用JAVA语言开发终端应用程序,构建统一数据库,利用红外传感监测技术研究用户申请数据和安全存储数据,并分析实验室预约流程,得到用户登录时序图,以此设计审核流程,完成系统设计。通过仿真实验结果可知,该系统预约效果最高可达到99.01%,为实验室合理应用提供了系统支持。     

智能迎宾机器人控制系统

一种基于MCU(微控制单元)控制的智能迎宾机器人控制系统,包括人体红外检测模块、MCU控制模块、人脸表情显示模块、语音播放模块、步进电机驱动模块、关节执行模块。该系统利用两个热释电红外线传感器,用于检测人员是进门还是出门;通过MCU输出脉冲,控制相应的电机驱动,使步进电机旋转一定的角度,从而控制各个关节实现其预期的关节轨迹。系统设置有语音播报模块,当检测到有人员进门时,迎宾机器人做出弯腰欢迎动作并且语音播放"欢迎光临",当检测到有人员出门时,机器人做出弯腰送别的动作并语音播放"感谢惠顾"。     

室内攀岩机控制设计

通过对室内攀岩机的运动分析,给出了攀岩机控制系统方案,设计了液晶显示、按键输入、语音输出、电机驱动、红外检测及岩壁限位等模块的硬件电路,利用单片机控制攀岩壁的机械安装角度和攀岩面的运动速度,调节运动的难易程度,适应不同的使用群体,让室内攀岩成为了可能。     

强抗干扰红外车辆分离系统的研制

在机动车辆自动识别计费系统中,要求对无规则运行的各种型号车辆进行无漏检测,给出车辆通过车道检测区域的基准信息。采用CCD摄像技术的车辆分离系统面对全天候复杂环境,难以准确、清晰地识别目标,同时CCD系统的价格非常昂贵。使用红外技术研制的红外车辆分离系统具有寿命长、精度高、响应速度快和抗光、电、磁性能好等优点,可达到百分之百的车辆识别要求。红外车辆分离的主要困难在于对带拖挂车的机动车辆的挂钩的识别,这可根据不同车型的挂钩高度,来设置识别挂钩的检测区域,由挂钩厚度设置红外线间距,形成间距为39mm,20对平行等距的红外线族。为了准保挂钩的准确识别,采用了不同调制频率发射,一对一相关接收方式,包括拖挂车的车辆通过该区域时,至少档住一路红外线,给出一个完整的车辆信号,达到识别车辆目的。     

基于TRF6900芯片的红外线矩阵坐标式自动报靶装置

红外线矩阵坐标式自动报靶装置由红外线矩阵光电坐标靶,坐标传感器,单片机控制单元及射频无线发送、接收芯片TRF69001组成.红外线矩阵是由两排互相垂直的红外光束正交形成,它是靶子的坐标定位区域.TRF69001芯片进行输入信号的处理和无线收发.显示器由点阵式液晶显示器及显示控制电路组成,在屏幕上呈现胸环靶图案及显示弹着点位置,从而实现自动报靶和射击成绩统计等功能.     

可随意留言与自动语音提示的门控器设计

具有语音提示功能的门控器适用于家庭、办公等场合,安装于门附近一定的位置。当用户有需要提示的事情时,可以提前向该装置录入语音;当用户打算出门,走到该装置可以扫描到的区域,该装置采用热释电红外传感器检测出人体辐射的红外线,再经过红外传感信号处理器处理电路,在有效的延     

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.