查询词典 network control

At first, this paper surveys nonlinear control and the applications of neural networks in control respectively. Then it studies definitions, mathematical descriptions and conditions of invertibility for nonlinear systems, which are used to analyze the feasibility of inverse system control method. Conclusions about the feasibility of inverse control and the realizability of αth-order inverse systems in engineering are achieved. Furthermore, this paper discusses the feasibility, structure and identification of neural network αth-order inverse system for general single-input single-output continuous or discrete nonlinear systems and various composite control methods based on the αth-order inverse. At last, as a part work of an actual project, this paper focuses on the design of neural network αth-order inverse control method for thyristor controlled series compensation in power systems and its effect in improving the stability of power systems.

本文首先分别概述非线性系统的控制与人工神经网络在控制中的应用；然后研究非线性系统各种可逆性的定义、数学描述及可逆性条件，并用于分析逆系统控制方法的可行性，得出有关逆系统控制方法可行性的结论，阐明一般情况下α阶逆系统才工程可实现；接着本文针对一般单输入单输出连续、离散非线性系统，研究神经网络α阶逆系统的可行性、结构与辨识以及基于神经网络α阶逆系统的各种复合控制方法，并给出应用例子；最后本文结合实际项目，针对采用可控串补的电力系统，设计神经网络α阶逆系统控制方法，研究其对提高电力系统稳定性的作用。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

In this paper, the theories of lunar control network foundation and lunar map projection are studied. Three foundation methods of lunar control network and the progress in American lunar control network are summarized and analyzed.

月球大地测量是月球探测的主要任务之一，本文主要对月面大地控制网的建立理论以及月球投影的理论和方法进行研究。

Currently some different video transmission scehmes have been proposed, such as source-based adaptive rate control, receiver-based simulcast and layered multicast, but these schemes basically follow the traditional network design principles and take end-to-end congestion control and error control mechanisms without the participation of network intermediate nodes, making a series of problems such as session management difficulty, congestion control blindness, feedback explosion, and the difficulty in achieving fairness among different users.

目前对于网络视频传输已出现了各种不同的解决方案，如基于源的自适应速率控制方案和基于接收端的联播、分层多播等视频传输机制，但这些方案基本上都遵循网络设计的传统原则，采取基于端到端的拥塞控制和差错控制机制，而没有网络节点的参与，从而导致会话管理困难、拥塞控制盲目、反馈爆炸等一系列问题，而且难以在用户之间达成公平。

The whole PPT-reports of the Forum have put into "Complex Network Science Forum Circle" on Science Network in China (Please see: hettp//www.sciencene.cn/g/ComplexNets ) and also appear on the CCAST-WL Webside (Please see: www.ccast.ac.cn/workshop ). Main issues of the Forum are associated main subject of Network Science with application, including: review and outlook of network science ,spreading model of the H1N1 influenza virus , dynamics of neural network , brain functional networks,dynamics of topological structure, military network science with application, space structure of complex networks, community structure,,stationary e fficiency of coevolutionary networks , significance of community structure,,relationshipe between structure and dynamics of complex network, generalized synchronization and control, consensus of multi-agent systems, evolutionary game and friendship network, s preading of epidemic based on human and animal mobility pattern, complex network engineerings, and so on.

本届论坛文集共收编了32篇 ppt 报告，已经公布在中国科学网"复杂网络论坛圈"上（请看： hettp//www.sciencene.cn/g/ComplexNets 并且也发表在中国高等科学技术中心网站上（ the CCAST-WL Webside ）(请看： www.ccast.ac.cn/workshop )，这些报告内容丰富，各具特色，颇有创新，基本涵盖了近年来我国网络科学领域若干重要课题的研究进展和丰硕成果，课题研究颇有深度，不仅具有现实意义的重要课题（如甲型流感全球大爆发之经验统计及其传播模型），而且有前沿课题：生物神经网络系统的动力学与大脑网络，还有一系列重要课题：网络拓扑结构的动力学识别与估计、军事网络科学、网络科学在工程应用、多个体一致性、网络结构与动力学之间关系、同步-协同-中性稳定性和流型的稳定性、网络系统的协调动力学与控制、复杂网络的空间结构、连续系统和离散系统中的广义同步、疾病免疫算法、网络节点匹配、电力网、供应链网、化工网、通讯网与保密通信，等等。

To overcome the bad effect resulting from the nonlinearity time-variability and uncertainty on autopilot system performance during the motion process of aerodynamics missile, and to further improve the flight quality of missile, the autopilot system and used control method are researched. Firstly the integrant structure of system is discussed; then baaed un introducing the traditional PID method, controllers for missile attitude motion are designed respectively using fuzzy self-turning PID method and neural network self-adaptive PID method; at last a simulation experiment is finished. By comparing the simulation results that the designed controllers have good qualities is showed, and the feasibility and validity of applying fuzzy control and neural network into automatic control of aerodynamics missile is confirmed, and the base that other nonlinear control theory can be combined with the traditional control for missile to further improve the performance of missile control system is established.

为了克服飞航导弹运动过程中的非线性、时变性和不确定性对自动驾驶仪系统性能的不良影响，进一步提高导弹的飞行质量，对自动驾驶仪系统及其采用的控制方案进行了研究；首先对系统的整体结构进行了分析，然后在介绍经典PID方案的基础上，分别采用模糊自调整PID方案和神经网络自适应PID方案设计了导弹姿态运动控制器，最后进行了仿真实验；仿真结果的对比展示了所设计控制器良好的品质，验证了将模糊控制和神经网络应用于飞航导弹自动控制中的可行性和有效性，为其它非线性控制理论与导弹传统控制相结合以进一步提高导弹控制系统的性能奠定了基础。

Chengde County, Hebei Province Land and Resources Bureau in increasing the protection of survey marks based on the Chengde County's economic and social development, introduction of basic surveying and mapping special plan, funds from various sources to carry out geodetic control network, GPS control network, the county seat Height Control Network construction projects, as a unified county-wide benchmarks, in order to provide quality surveying and mapping services to the community.

河北省承德县国土资源局在加大测量标志保护的基础上，根据承德县经济和社会发展的需要，出台基础测绘专项规划，多方筹集资金，开展大地控制网、GPS控制网、县城高程控制网建设项目，以此统一全县测量基准，为社会各界提供优质测绘服务。

Our main products are: Digital Board with RF coaxial cables, digital bureaux symmetrical RF cables, high frequency coaxial cable, digital communications cable symmetrical, high-frequency digital transmission cables, security cables and industrial inspection, multi-structure control of an integrated multi-core cable , multimedia cables, cross-linked communications cables, control cables, shielded cables, electrical lines installed, UL electronic lines, plant rooms and so on with flame-retardant flexible cables, common backbone network cables, network cables ordinary slip, elevator cables, instrumentation cables, PTFE high temperature cables, ultra-five twisted-pair, program-controlled switchboard wiring cables, high frequency cables, low smoke zero halogen cables, various types of flame-retardant and fire-resistant cables, nylon jacket line, car line, data transmission cables, HFC access network using coaxial cable, 75 ohm foam Physics Series, CATV coaxial cable, 50 ohm series of RF coaxial cable, low loss 50 ohm series of physical foaming coaxial cable, control cable, rubber cable sets , electric welding cables, silicon rubber cables, marine cables, mining cables, PVC insulated wire and cable, computer cable, power cable, electrical wiring primer, rubber insulated wire, woven wire, high temperature wire, XLPE cables ship cables, high temperature cables, such as fire, at the same time to take a special type electric wire and cable products specifications to develop a business.

公司主要产品有：数字局用同轴射频电缆，数字局用对称射频电缆，高频同轴电缆，数字通信对称电缆、高频数字传输电缆、保安与工业检测电缆、多重结构多芯控制综合电缆、多媒体电缆，交联通信电缆，控制电缆，屏蔽电缆，电器安装线， UL电子线，机房等场合用阻燃软电缆，普通主干网络电缆，普通支路网络电缆，电梯电缆，仪器仪表电缆，聚四氟乙烯高温电缆，超五类双绞线，程控交换机配线电缆，高频电缆，低烟无卤电缆、各类阻燃和耐火电缆、尼龙护套线、汽车线、数据传输电缆，HFC接入网用同轴电缆、物理发泡75欧姆系列、CATV同轴电缆、50欧姆系列RF同轴电缆、低损耗物理发泡50欧姆系列同轴电缆，控制电缆、橡套电缆、电焊机电缆、硅橡胶电缆、船用电缆、矿用电缆、聚氯乙烯绝缘电线电缆、计算机电缆、电站用电缆、电机引接线、橡皮绝缘电线、编织电线、高温导线，交联聚乙烯电缆船用电缆、耐高温防火电缆等，同时承接特殊型号规格电线电缆产品的研制、开发等业务。

According to the technology trend of computer control system and modern network, the article puts forward software project for Supervisory Control System, whose practical background is supervisory control system software in material testing center. The system model is introduced including three-tie star network based Browser/Server, and the architecture of network and locale workstation by the effective sustainable development pattern.

本文根据计算机监控系统的技术发展趋势，结合了现代网络技术，以材料试验中心的监控系统软件环境为工程背景，提出了基于Web技术监控软件系统方案，系统模型采用基于浏览器/服务器的三层星形网络结构，网络系统平台和现场工作站的建设方案采用适合于建设实际的可持续发展的建设模式。

In allusion to weak point of traditional PID control can't effectively tracking parametric variation of control system ,utilize neural network have predominance that self-study、self-organization、associative memory、concurrent processing and can get satisfactory result in complex control system on the basis of double closed loop,advance apply adaptive linear element network—Adaline network, which has self-learn and self-adjust ability.

在双闭环控制的基础上，针对经典PID调节器不能有效跟踪控制系统参数变化过程这一弱点，利用神经网络具有自学习、自组织、联想记忆和并行处理等功能和对于复杂系统控制可以达到满意效果的优势，提出了采用具有自学习和自适应能力的单神经元网络——Adaline网络，来构成一种神经网络自校正控制器。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了