面向场景服务的智能家居中间件系统

分析智能家居系统的现状,提出一种新的智能家居中间件系统的设计方法,该方法通过基于脚本解析的通用API适配技术,对不同接口标准的设备终端实现统一管理与控制,通过用户自定义规则与场景,实现多个设备的联动控制和综合服务,提升了智能家居系统的兼容性和便捷性。     

基于Web的集中式通信设备监控系统的体系结构研究

通信设备监控系统的作用就是对通信台站所属设备进行实时的参数与状态的监视、控制和管理，他是通信网络管理的重要组成部分。要实现不同通信台站设备的集中管理和网络化管理，就需要制定统一的管理规范，并统一设计通信台站监控和管理体系框架。本文深入研究了基于Web的网络管理技术；介绍了基于Web的网络管理标准和实现方式；进而提出了基于Web的集中式通信设备监控系统的软件体系结构，并对这种软件体系结构的核心实现技术：SNMP网络管理协议和主流软件中间件技术包括COM／DCOM，CORBA／CCM和EJB／J2EE技术及其对比进行了介绍。     

基于RESTful Web Services的智能家居管理系统设计与实现

基于物联网技术开发的智能家居系统解决了异构网络内家电的互联问题,而其管理系统仍面临着管理平台单一、可扩展性差以及较低的用户体验等问题.在利用ZigBee协议构建家庭无线传感器网络的基础上,提出一种基于RESTful Web Services的智能家居管理系统设计方案,增强了系统的可扩展性和跨平台能力,所开发的基于Android的智能家居客户端有效提升了用户体验.     

基于5G无人机通信的多智能体异构网络选择方法

摘 要：5G无人机通信网络和各种不同无线接入技术的结合使无线异构网络呈现多样化的发展趋势。然而，用户繁多且不同的业务请求对网络要求也不同，造成网络接入选择问题。提出了一种基于5G无人机通信的多智能体异构网络选择方法，将用户分为多个智能体，从用户端和网络端两个方面出发，将用户侧的时延和传输速率需求与网络侧的负载均衡需求综合考虑作为即时回报的相关参数，通过基于Nash Q-Learning的算法进行学习，得到异构网络环境下的网络选择决策模型。仿真结果表明，所提异构网络选择方法针对不同业务类型用户的需求均能选择合适的网络，同时均衡网络的负载，充分利用异构无线网络的资源。     

基于电信缴费数据库的中间件技术应用分析

本文通过对中间件技术的研究,结合电信缴费系统的具体应用,提出一种C/S结构的电信业务实现层与底层用户数据库间的中间件实现方案,并搭建了一个三层结构的基于中间件技术的电信业务应用平台。中间件屏蔽了底层数据库系统的异构性,解决了不同行业间的系统互联,更为安全、高效地处理客户端与具体业务功能层和数据库层的交互。     

基于XML的电力数据集成平台研究

为了解决电力系统内部异构数据共享和集中管理的问题,提出基于“集成数据库-中间件”的四层电力数据集成平台框架设计方案。该方案结合可扩展标记语言XML的优势定义数据交换格式,参考HSDA视图的组织形式搭建集成数据库,通过查询转换器、数据合法性验证工具以及数据转换器实现对用户请求的中间处理,最终将转换得到的XML文件提供给Web服务器,实现电力数据集成平台系统。实践证明,该方案对异构数据集成问题的解决提供了一个切实可行的模式和方法,具有较好的可扩展性和适应性。     

基于GSM技术的智能家居远程监控系统的设计

研究基于GSM(全球移动通信系统)技术构建智能家居远程监控系统的方法,着重讨论GPRSM22通信模块及报警控制模块的硬件设计方法,讨论基于AT命令的单片机与GSM通信模块的通信软件程序的设计,构建基于GSM网络的远程智能家居设备与用户移动设备的通信系统。     

5G异构网络融合关键技术探究

在5G系统中,异构网络融合能够充分利用不同类型网络的优势,为用户提供多样化的接入手段、通信方式和网络服务.然而,不同类型的无线网络在融合过程中不可避免地会出现一些问题,如移动性管理、无线资源管理、服务质量等,这就给5G异构网络融合提出了新的挑战.基于此,本文围绕5G异构网络融合相关问题进行研究,探究改善5G异构网络融合...     

基于openHAB的智能家居系统设计与实现

针对目前智能家居存在的网络异构,控制不灵活以及成本较高等问题,文章设计并实现了一种基于开源软件openHAB的智能家居系统。该系统采用树莓派作为嵌入式家庭网关及应用服务器,能够实现对家庭数字设备和智能电器的自动化监测和智能控制。通过搭建原型系统进行试验,证明了该套系统具有良好的可行性、灵活的管理性和异构设备集成性,并且其成本低、功耗低、稳定性强。     

基于Web Service的异构数据库的集成

分析了现有异构数据源的数据集成的方式,为了保持各数据源的自治性和满足数据查询的实时性,提出使用中间件体系结构的集成方案。介绍Web Service分布式计算模型及其特点,提出了一种基于Web Service技术进行异构数据源集成的方法。通过Web Service能将连接在Internet上的异构数据泺构建成一个虚拟的全局数据库,为用户提供透明统一的接口,从而实现异构数据资源的共享和整合。     

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.