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应用科学学报 ›› 1992, Vol. 10 ›› Issue (3): 265-272.

• 论文 • 上一篇    下一篇

实时专家控制系统的知识库组织及求解算法的研究

郑德玲, 刘宏才, 徐广新   

  1. 北京科学技术大学
  • 收稿日期:1989-12-04 修回日期:1990-09-02 出版日期:1992-09-30 发布日期:1992-09-30

RESEARCH ON THE REPRESENTATION STRUCTURE OF KNOWLEDGE-BASE AND SOLVING ALGORITHM IN THE REAL-TIME CONTROL EXPERT SYSTEM

ZHENG DELING, LIU HONGCAI, XU GUANGXIN   

  1. University of Science and Technology Beijing
  • Received:1989-12-04 Revised:1990-09-02 Online:1992-09-30 Published:1992-09-30

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摘要： 介绍一个指导转炉炼钢补吹操作的专家系统.着重介绍其知识库的组织结构及相应的推理算法.提出按知识结构分级的知识表示策略及按任务划分组织知识源的方法.建立二次映射求解模型.采用优化求解策略,进行机遇推理,并用手段-目标分析法,并加以启发及元知识指导.使产生式系统具有并行处理能力.从而使系统具有较强的领域适应性.

关键词: 专家系统, 知识库, 求解策略

Abstract: This paper introduces an expert system in the real-time control for the after-blow operation in converter steelmaking with oxygen. Special attention is paid to the research on the representation structure of the knowl edge-base and the relative inference algorithm.
A two-time mapping model for the solution is formed. An improved opportunity inference approach in the problem is employed, instructed by the means-end analysis with heuristic information and metarules. In this way, the production system has parallel processing performance, and the expert system has a high adaptability.

Key words: solving strategy, expert system, knowledge-base