关键词: 专家系统, 知识表示, 选择策略, 排序策略

Abstract: This paper presents a design and implementation of an expert system for real-time fault diagnosis of complex chemical processes. Structure of the system, a structure of knowledge base as well as a design of inference machine are discussed in detail. A new strategy of conflict resolution of knowledge rule－sort strategy of antecedent as well as a selection strategy of knowledge rule in a memory knowledge base is presented. To take a lubrication processes for example, a diagnose process of the system has been discussed. The application of the system has been shown that it has responded with the process fault immediately and satisfied requirement of a production.

Key words: Expert system, Representation of Knowledge, Selection strategy, Sorting strategy