设备故障基于图论的层次诊断模型研究

Hierarchical Model Based on Graph Theory for Equipment Diagnosis

提出了一种基于图论方法的设备故障诊断模型，可以克服通常产生式系统知识获取的困难以及一般基于模型系统过分依赖于定性描述的不足。文中详细讨论了基于图论的设备建模方法和层次分解技术，借助于矩阵分析技术，提出了具体的诊断算法．

A new hierarchical model based on the graph theory for fault diagnosis of equipment is proposed. By this model the difficulties of knowledge acquisition in the commonly used production system and the shortcomings with dependence on the qualitative description for a modelbased diagnosis system can be removed. The technique of modeling for equipment based on the graph theory and the technique of hierarchical decomposition are discussed in detail. By introducing the matrix analysis technique the diagnostic algorithm based on the graph theory for fault diagnosis of equipments is suggested.