基于NS3000数字化变电站自动化系统的调试技术

随着智能电器的不断发展,更各种智能化设备相继出现,变电站自动化技术也进入到了数字化阶段。虽然智能化技术的发展和应用,自动化系统的调试变得越来越重要。基于此本文对数字化变电站自动化系统的调整方法进行探讨。     

智能化技术在电力系统自动化中的应用研究

随着科学的发展,智能化技术的现代应用日趋成熟。为了提高电力系统的服务质量,在基础运维管理中,需要引进先进技术手段,确保电力系统的自动化发展。智能化技术是系统高效运行不可忽视的工具,自动化技术是优化系统的前提,是提高电力水平的重要因素。在生产水平提高的条件下,自动化为经济的发展提供了必要的保障。基于此,本文分析了电力智能化技术的重要应用价值特点和需求,讨论了在电力系统中的应用,以期为电力自动化的发展提供一定的参考。     

初探智能化技术在电气工程自动化控制中的应用

自动化控制是电力工程中不可或缺的环节,其不仅可以有效提高电气工程的效率,而且可以提高电气工程的整体质量。而在电力工程自动化控制系统中,智能化技术发挥着重要的作用,其使电气工程自动化控制水平提高了一个层次,推动电气工程的发展。本文从电气工程自动化控制中智能化技术的特点出发,着重探讨智能化技术在电气工程自动化控制中的应用。     

自动化监控技术在城市燃气管网智能化发展中的典型应用

<正>本文简要概述了自动化监控技术的作用,对城市燃气管网的智能化发展中的设备智能化、技术智能化以及管理智能化进行了分析,重点探究了远程流量调节控制、远程压力流量控制以及智能调压等自动化监控技术在城市燃气管网智能化发展中的典型应用,期望通过分析其系统组成结构、控制原理、系统功能以及应用情况进一步了解自动化监控技术的特点与作用。自动化技术以云技术为基础,秉持大数据理念进行自动化智能监测工作。其能够在很大程度上提高监测的效率,获得的分析数据更加精确,获取数据的速度也更快,由于其突出的优势,被广泛应用于各大领域中,     

电子信息技术在电力自动化系统中的应用分析

电子信息技术是推动电力自动化系统发展的关键,在电力自动化系统中运用电子信息技术,能够使得电力系统的智能化、自动化水平得到全面提升。鉴于此,本文主要对我国电力自动化系统的发展情况以及电子信息技术在电力自动化系统中的具体应用进行了分析和探讨。     

浅析人工智能在电气自动化中的运用

电气自动化包括电气工程的自动控制、信息处理、系统运行等相关领域,引入人工智能技术,不仅可以推动自动化生产和运输的发展,还能减少电气自动化的成本投入,提高生产效率和产品质量。在人工智能技术快速进步的今天,已经实现了通过计算机来模拟智能行为和思维过程,从而达到自动化和智能化的工作效果。文章就人工智能技术在电气自动化中的运用进行了分析,相应地提高电器设备智能化水平,确保电气自动化控制系统稳定运行。     

集控模式下500kV数字化变电站建设的探讨

在变电站自动化领域中,智能化电气设备的发展使变电站综合自动化技术进入了数字化发展的新阶段。文章就数字化变电站中综合自动化系统进行统一架构,从数字化变电站中的一、二次设备接口问题阐述实现开放式数字化变电站的设备及通讯方面的技术要求,并分析数字化变电站综合自动化系统存在的安全问题。     

电气工程及其自动化的智能化技术应用分析

自动化的智能化技术在电气工程中的发展速度非常快,是目前科技发展的主要方向,为加强自动化和智能化的实际应用技术,本文就电气工程及其自动化的智能化技术应用进行探究,研究自动化的智能化技术的特点和实际的应用技术,以期为相关的专业人员提供有益参考.     

视频处理技术的智能化发展

在自动化领域,尤其是系统自检应用方面,图像处理已经越来越受到人们关注,随着物联网的快速发展,图像处理最终是要实现智能化。很多智能化系统中都会使用到图像处理技术,因此,将图像处理技术与智能化相结合有很大的发展前景。本文主要针对图像处理智能化理论和高效算法做出了研究。从对图像处理技术发展现状的简述着手,然后在当前国内外研究的成熟理论的基础上,探索图像处理技术未来发展空间。     

调度自动化系统的安全性

由于人类的不断创新,智能化对于我们已经不陌生了。我们的生活逐渐的向智能化发展,对于调度自动化系统的使用在大幅度的增加。然而,调度自动化系统的安全性还有很多值得人关注的地方,还有很多地方要进一步的改善和完善。本文就从调度自动化系统的安全性的现状和规章制度及技术来展开介绍。     

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