控制系统CAD中的专家系统技术

本文考虑专家系统技术在控制系统ＣＡＤ中的应用问题。基于ＣＡＤＣＳＣ软件总包的整体结构，嵌入一个产生式专家系统，以处理控制系统设计中所遇到的多种复杂的选择，综合设计过程中的经验和技巧，使整体系统具有决策支持、智能搜索，专家推理等功能。文章在介绍ＣＡＤＣＳＣ软件包概况的基础上，从控制系统工程设计背景出发，总结设计人员的多层次的设计知识和技巧，将其表达为递阶产生式规则。用目标驱动、数据驱动以及启发式搜寻等推理方法，构成一个产生式专家系统。系统能减少设计中某些低效率的反复交互，发挥设计者的创造技能，为控制系统的设计与综合，创造一个良好的智能环境。图３，参３。

EXPERT SYSTEM TECHNOLOGY IN CONTROL SYSTEM CAD

This paper discusses the problems of the expert system application in controlsystem CAD. Based on the whole struction of CADCSC software package,a production ex-pert system is inlayed Into the package in order to process various complicated choias dur-ing the control system design, The whole system has such functions as decision support,intelligence retrieval,expert inference by means of synthcabing the experienas and skillsin the course of design. The knowledge and skill of many levels design,the expert systemcomplies with the rules of step production and adopt the methods of object drive,data drive,heunristic search etc. It creates a good intellingence emviroment for design and sythesesof control system. 3figs.,3refs.