旋转机械故障诊断的框架知识表示

Fault diagnosis knowledge representation of rotary machinery based on frame structure

专家系统的核心是知识,有效、正确的知识表示是专家系统中知识处理的最基本前提。针对旋转机械故障诊断专家系统中的知识表示问题,作者提出了用框架结构对其知识进行表示,并讨论了框架结构知识表示的推理技术和搜索技术,使旋转机械故障诊断专家系统能利用这些知识进行迅速推理并得出正确的诊断结论。文中给出了其在C++语言环境下的实现方式,顺便讨论了框架知识表示与面向对象知识表示之间的关系,并在VC++集成开发环境下开发出了一个知识表示的演示模型。结果说明该知识表示方式是有效的。

Knowledge is core of expert system, whether it is represented correctly and validly or not, is very important precondition for knowledge processing in expert system. Aimed at knowledge representation problem of expert system for rotary machinery fault diagnosis, authors present frame structure to represent its expert knowledge, and discuss reasoning technique and searching technique for frame structure knowledge representation, only in this way, it is possible to make expert system of rotary machinery fault diagnosis utilize these knowledge to reason and acquire correct diagnosis conclusion promptly. In this paper, its realizing method was given in C++ language environments, in addition to demostrating model is also developed in Visual C++ integrated development environment, meanwhile, relation between frame knowledge representation and object oriented knowledge representation was also discussed. The demostrating result shows that the knowledge representation is valid.