基于面向对象和数据库技术的机床选择专家系统

Machine tool selection expert system based on object-oriented and database technology

机床选择是机械加工工艺设计中的一个重要环节。专家系统是人工智能的一个主要研究方向,非常适合处理需要大量经验知识的设计问题。提出将面向对象方法和数据库技术相结合,进行了机床选择专家系统总体结构设计,并介绍了各模块对应的功能,研究了基于产生式规则的知识表示方法、基于关系型数据库的知识库的管理和基于正向推理方式的推理机的设计和推理过程等关键技术,以Visual C++和Access为开发工具,实现了机床选择专家系统。

The selection of machine tools is an important step during the machining process.The expert system is a main research area in the artificial intelligence.It is suitable for solve the design problems that require much experience knowledge.The combination of object-oriented method and database technology is presented to develop the machine tool selection expert system.And several key techniques,such as the method of knowledge representation based on the production rule,the management of knowledge base based on the relational database and the design of inference engine based on forward reasoning are illustrated.The machine tool selection expert system is realized by taking Visual C ＋＋ and Access as the development tool.