物联网技术下的智能家居远程无线监控系统设计探讨

由于当前新技术不断发展,人们的生活得到越来越好的服务.其中在网络技术的帮助下,当前的智能家居可以实现远程监控,这就更好地满足了用户的实际要求,同时也是智能家居今后重要的发展方向.因此,本文重点分析物联网技术支持下智能家居实施远程、无线监控的系统,有效连结了用户和生活的实际需求,进而可以更好地克服传统安装服务器和依赖IP地址所存在的弊端,并且还有效地提升了安全度.     

基于JN5139的智能家居内部组网

内部组网技术是智能家居网络的重要环节,ZigBee技术能很好满足智能家居内部组网的要求。利用JN5139微控制器组建智能家居ZigBee内部网络。根据智能家居网络的特点,构建低复杂度的ZigBee星形网络,并给出了网络的硬件设计和软件流程。     

基于LonWorks技术的智能家居网络节点设计与开发

随着计算机技术、通信技术和控制技术的飞速发展，人民生活水平的提高，构造一种智能化的家居，使互联网进入人们的日常生活，已成为迫切的需求。家居网络是融合信息管理和信息控制的网络。他可以使一个家庭通过互联网与外界进行信息交流，也可以通过互联网对家中的设备、电器进行过程控制、节能控制、状态检测、智能服务、安全防护等。简要介绍了智能家居网络的发展，国内外研究现状，及当今被世界各国广泛应用和推荐的LonWorks现场总线技术。在此基础上，进行智能节点的硬件和软件的设计与开发，组建了一个简单的智能家居网络。     

基于JN5139的智能家居内部组网

内部组网技术是智能家居网络的重要环节.ZigBee技术能很好满足智能家居内部组网的要求.利用JN5139微控制器组建智能家居ZigBee内部网络.根据智能家居网络的特点,构建低复杂度的ZigBee星形网络,并给出了网络的硬件设计和软件流程.     

智能家居中基于假名的全匿名认证方案

随着物联网技术的发展,越来越多的智能设备走进家庭场景,便捷了用户的生活.智能家居产品大多采用无线传输技术,而家用无线通信数据网络绝大多数设备简单,安全性不高.当各式各样的智能设备通过网络进行连接和控制时,用户隐私和数据安全问题成为人们关注的重点,因此提出了智能家居中的匿名身份认证方案.该方案进行了高效的认证和密钥协商,...     

智能家居远程Web管理控制平台的设计与实现

智能家居极大地改变了人们的传统生活方式,但是现阶段其应用多数局限在用户家中,对于远程控制的支持稍显不足.针对现状,采用ASP.NET技术和MySQL数据库等开发工具,设计并实现了智能家居远程web管理控制平台.满足了用户远程控制的需求,方便了用户对智能家居系统的使用,同时也促进了智能家居的发展.     

基于LonWorks技术的智能家居网络系统

实现家居智能化,离不开一个易安装、便于控制的网络。通过对电力线通信技术的特点及利用电力线通信技术实现智能家居网络组网的关键问题的分析,提出一种利用电力线通信技术组建智能家居网络的解决方案,采用LonWorks网络控制技术,以分布控制、集中管理为控制模式。该方案具有良好的可靠性、较高的灵活性和可扩展性。     

几种智能家居网络控制系统方案的分析与比较

针对现代家庭追求家居智能化,享受智能化带来的多元化信息,以及安全、舒适与便利的生活环境的现状,介绍了智能家居网络控制系统的组成,重点分析系统主控制器解决方案、网络拓扑方案、网络通信技术及各种有线、无线组网方式,阐述了各自的特点,指出其不足之处,并对有线、无线组网方式进行比较,说明了利用嵌入式控制器、无线组网方式组建智能家居网络控制系统的优越性。总结得出：嵌入式无线网络控制系统是未来智能家居网络控制系统的发展方向。     

物联网技术在智能家居中的应用探究

伴随着网络技术的不断发展,物联网技术被人们广泛运用到智能家居中。在人们平时的生活中,智能家居的确可以为人们带来方便,其以后的发展空间将会十分巨大。对此,本文经过进一步分析智能家居中物联网技术的应用,希望可以为推广运用智能家居提供一定的参考。     

基于物联网的智能家居设计与实现

继计算机、互联网在内的信息产业高速发展之后,以及在传感器技术、RFID射频技术、嵌入式技术等技术的进一步发展,物联网在日常生活中的应用越来越广泛,并成为当代国内外研究的重点。由科学技术的深入发展和人们生活水平的提高催生的智能家居,物联网的发展实现了物物相联,也使得智能家居取得了在技术上质的飞跃。智能家居系统是利用Zigbee无线传感器网络来采集家居内的环境、人员以及设备的信息,然后在通过物联网网关将已采集的信息转发给互联网中的服务器,以便用户通过客户端软件或浏览器来监控智能家居各子系统的运行状况。     

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.     

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.     

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.     

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