面向对象知识表示在起重机专家系统中的应用

知识表示是专家系统的关键组成部分。在对知识表示的方法进行探究的基础上，根据起重机操作专家系统的特点，采用面向对象与产生式表示方法相结合的混合表示方法对其专家知识进行表示，并在C＋＋程序语言环境下实现起童机操作知识的表示，同时给出起重机操作的知识表示实例，用此法开发的专家系统具有代码短、易维护、易修改和易扩充的优点。阐述了起重机操作专家系统如何用面向对象方法封装规则、建立知识库、实现知识推理和具体的应用要点。

Research and Application of Object-Oriented Knowledge Representation in Crane Expert System

Knowledge representation is one of the key part in expert system.With the in-depth research to the method of knowledge representation and the crane expert system's characteristic,uses a mix expression method with the object-oriented and produce expression method for expressing expert knowledge,then realizes the knowledge representation of crane designing under the language environment of C ,and gives the knowledge representation examples of crane operating.Based on this method,the system software codes is short,the system maintenance,modification and expansion are easy.Discusses the realization of some aspects to the crane operation expert system,for example,how to use object-oriented to pack rules,the building of knowledge base,the realization of knowledge inference and the specific application.