CAPP专家系统的知识表达与推理研究

The Research of Knowledge Representation and Inference Mechanism on CAPP Expert System

针对开发CAPP专家系统过程中产品零件表示和工艺规程设计这两个关键问题,提出基于关系型数据库的知识表达方式。这种方式使数据库具有了知识库的功能,使知识更容易表达和管理。同时,提出了满足这种表达方式的推理方式,提高了系统的推理效率。

The representation and process planning of machine parts are of key importance in CAPP （ Computer Aided Process Planning） expert system constructing tool. Based on the research of the knowledge type, the relation database-based knowledge representation was put forward. This method makes the database have the knowledge base function, makes the knowledge representation and the knowledge management easy. To meet this representation, the reasoning way based on database was brought out, which improves the efficiency of expert system.