A NEURO‐FUZZY SYSTEM DESIGN METHODOLOGY FOR VIBRATION CONTROL

Fuzzy system has been known to provide a framework for handling uncertainties and imprecision by taking linguistic information from human experts. However, difficulties arise in determining effectively the fuzzy system configuration, i.e., the number of rules, input and output membership functions. A neuro‐fuzzy system design methodology by combining neural network and fuzzy logic is developed in this paper to adaptively adjust the fuzzy membership functions and dynamically optimize the linguistic‐fuzzy rules. The structure of a five‐layer feedforward network is shown to determine systematically the correct fuzzy logic rules, tune optimally (in the sense of local region) the parameters of the membership functions, and perform accurately the fuzzy inference. It is shown both numerically and experimentally that engineering applications of the neuro‐fuzzy system to vibration control have been very successful.     

专用集成电路的设计验证方法及一种实际的通用微处理器设计的多级验证体系

随着专用集成电路制造工艺及设计方法的飞速发展,片上系统可集成的功能越来越多,规模越来越大,设计验证越来越复杂,只有使用先进的设计验证方法充分地验证其设计,才能保证一次投片成功.文中针对专用集成电路设计验证的各种方法和一种实际的通用微处理器设计的多级验证体系作了专门的描述,对片上系统设计者在构建自己的设计验证方案、使设计得以充分验证方面能给予一定的参考.     

FAULT TOLERANT CONTROL SYSTEM: QFT DESIGN

This paper addresses flight control system synthesis and the accommodation of controlled plant variation in an aircraft design envelope by using the frequency domain based quantitative feedback theory (QFT) robust control system design method. Plant variations considered include varying flight conditions in the flight envelope and damage to aerodynamic control surfaces. A robust flight control system is designed for the aircraft's longitudinal and lateral directional channels and validated with simulations containing nonlinear saturation elements. © 1997 by John Wiley & Sons, Ltd. This paper was produced under the auspices of the US Government and it is therefore not subject to copyright in the US.     

导弹控制软件的模块化设计

为了对导弹控制系统的软件进行设计,首先要对导弹的飞行过程和理想轨迹进行设计,并采用计算机分阶段分通道控制策略对导弹的飞行过程进行控制,然后设计导弹控制软件各组成模块,并采用C语言进行编程.     

嵌入式多轴运动控制器编程系统设计

针对传统机器人运动控制器成本高、体积大等不足,在工业机器人控制原理基础上,提出一种采用ARM系列嵌入式系统的多轴运动控制器上位机编译控制方案。该方案采用了Linux操作系统,以Qt/Embedded为框架设计了用户操作界面,提供了强大的触摸编辑能力,以逆运动学解算为原理VAL语言为基础设计了一套机器人控制语言,基于Lex和Yacc开发了从机器人语言到机器码的编译解释程序,提供了常用的端点示教和单轴示教功能。该系统成功应用于am3517平台,实际应用表明,该系统运行可靠,易操作,界面友好。     

基于PLC的塔式起重机控制系统的设计

本文针对传统的由继电器接触器控制的塔式起重控制系统可靠性差、操作复杂、故障率高、电能浪费大、效率低等缺点提出将可编程序控制器和变频器应用于其控制系统。在塔式起重机提升机构加上一套由旋转编码器、PG数模转换构成变频器闭环系统。结果表明：该系统使用方便，具有良好的动态调整性能，极大提高了系统的稳定性、可靠性。     

小型分布式监控系统的软件设计

本文介绍了一种ＰＣ机与单片机组成分布多机实时通信系统的方法。     

蛇形机器人控制系统的设计与实现

以蛇为模型的蛇形机器人的研究，扩大了机器人的应用领域．本文基于CAN总线技术完成了蛇形机器人控制系统的设计及研制，有效地实现了机器人的运动控制．在此基础上完成了蛇形机器人的集中式控制和分布式控制方式．     

高层建筑自动擦窗机控制系统的研制

本文介绍了一种新的玻璃幕墙清洗机即自动擦窗机系统,文章以PMAC运动控制器的应用为背 景,对高层建筑自动擦窗机的控制系统原理、体系结构以及软件设计进行了详细论述．在文 章最后着重讨论了机器人视觉在自动擦窗机中的应用．     

高炉冶炼过程计算机控制系统

本文介绍了一个高炉过程控制系统的研制和开发。该系统采用上下位机联合作业方式,系统稳定性好,具有较强的实时数据处理能力,可以方便地对高炉过程的主要参数进行监测和控制,并随时在屏幕流程图中显示过程参数的变化。文中讨论了实现数据采集和处理的有关硬件结构和软件设计,并结合知识工程的概念和方法,探讨了建立高炉诊断和预测系统的若干技术问题。     

A QFT SUBSONIC ENVELOPE FLIGHT CONTROL SYSTEM DESIGN

An aircraft's response to control inputs varies widely throughout its full flight envelope. Furthermore, the aircraft configuration impacts control response through variations in centre of gravity and moments of inertia. Quantitative feedback theory (QFT) is a robust control system design method which provides a full-envelope flight control system design and gives the engineer direct control over compensator order and gain. A full subsonic flight envelope FCS is designed for using QFT for four representative aircraft configurations. Flying qualities are embedded in the longitudinal design by using a control variable which varies with the aircraft's energy state throughout the flight envelope. Linear simulations with realistically large control inputs are used to validate the design. © 1997 by John Wiley & Sons, Ltd. This paper was prepared under the auspices of the US Government and it is therefore not subject to copyright in the US.     

基于ZigBee的家居监控系统设计

针对目前人们对家居监控的应用需求和特点,设计一种低功耗的基于ZigBee的无线家居监控系统。系统的节点分为终端节点和协调器节点,采用TI公司的低功耗射频芯片CC2530作为通信模块。重点介绍节点的硬件设计和软件流程的设计。系统实现了温度、光照、烟雾以及火焰的检测,监测到异常能及时预警。通过实验结果证明该系统功耗小、成本低、使用方便稳定,测量精度较高,能满足家居监控的需要。     

汽车助力器耐久试验台运动控制系统设计

汽车真空助力器带制动主缸总成多功能耐久试验台是为汽车真空助力器生产厂家研制开发，用于在产品实验室中,模拟不同温度状态下的工况，对助力器产品进行耐久试验及性能试验的多功能、高集成度专用设备。本文主要是从试验台的运动控制系统出发，介绍试验台的运动控制方式、组成及控制原理，最后给出了一组实验数据。     

行为驱动的VLSI设计方法

本文提出在ＶｅｒｉｌｏｇＨＤＬ硬件描述语言和Ｖｅｒｉｌｏｇ－ＸＬ模拟器环境下，实现行为驱动的ＶＬＳＩ硬件结构设计方法，从而生成寄存器传输级的数据通道和控制通道，给出了智能机械手实时控制主用处理器结构设计实例。     

基于现场总线的盾构控制系统的设计

本文在分析现场总线技术的基础上,对基于现场总线的盾构控制系统进行了设计,介绍了方向自动控制和掘进管理系统的实现方法,指出在设计盾构控制系统时采用现场总线技术对于提高盾构施工的控制精度,提高盾构控制系统的可靠性和可扩展性都有重要意义。     

离散型模糊系统的稳定线性监督控制设计

在对现有的T-S型模糊系统的稳定性结果进行 分析的基础上,研究了状态空间形式下离散型模糊系统在子空间上的线性分解,基于该线性 分解设计一线性监督控制器使模糊闭环系统稳定,从而用简单的线性系统理论完成了对复杂 非线性系统的控制．仿真结果证明了该线性监督控制器的有效性．     

COMPARISON OF FLIGHT CONTROL SYSTEM DESIGN METHODS IN LANDING

Intelligent control theory usually involves the subjects of neural control and fuzzy logic control. The great potential of intelligent control in control designs has recently been realized in the literature. In this survey paper, we attempt to employ this subject and provide the reader with an overview of related topics, such as conventional, fuzzy logic‐based, neural net‐based adaptive control techniques. Practical control schemes realistically applicable in the area of control system design are introduced. The control laws are demonstrated on a three‐degree‐of‐freedom simulation with linearized aerodynamic and engine models. This paper deals the issue of aircraft landing maneuvers. Generally this part of flight needs to be strongly assisted by human pilot.     

工业燃煤锅炉微机控制系统设计

本文介绍了一种以ＳＴＤ工控机实现的工业锅炉给水与燃烧控制系统，该系统帝现了工业锅炉高效率、低污染的智能优化控制，达到了安全、节能、保护环境的目的。     

烧结过程的模糊控制系统设计

根据烧结过程是一个多变量、非线性、时变的复杂系统,提出带参数预估的模糊控制方法去调节物料平衡系统和烧透点系统。经一年的运行,系统具有较强的鲁棒性。     

CONTROL SYSTEM DESIGN CONSIDERING A TRADEOFF BETWEEN EVALUATED UNCERTAINTY RANGES AND CONTROL PERFORMANCE

This paper presents a design method of control systems such that a designer can flexibly take account of tradeoffs between evaluated uncertainty ranges and the level of control performance. The problem is reduced to a BMI problem and approximately solved by LMIs. The convergence of the proposed approximation is proved in a modified sense. A numerical example shows the effectiveness of the proposed method in comparison with the standard robust control.