粗糙集理论在内燃机故障诊断专家系统中的应用  

The Rough Set Theory's Application in Fault Diagnosis Expert System of Combustion Engine

作　　者：孙颖楷[1] 陈海[2] 

机构地区：[1]北京师范大学珠海分校信息技术学院,珠海519080 [2]贵州工业大学电气工程学院,贵州贵阳550003

出　　处：《贵州工业大学学报（自然科学版）》2004年第6期17-20,25,共5页Journal of Guizhou University of Technology(Natural Science Edition)

摘　　要：在故障诊断专家系统的基础上,引入粗糙集理论,并以信息系统属性值表为主要工具,对专家系统中的规则进行约简并剔除不必要的属性,揭示了故障诊断信号中内在的冗余性,降低了故障诊断专家系统构成的复杂性,并建立了简化后的决策规则。On the basis of fault diagnosis expert system,we introduce the rough set theory.Knowledge representation system table is taken as a major tool to reduce the rules of expert system and in which unnecessary properties are eliminated.The redundancy of fault diagnosis information is revealed.The complexity of fault diagnosis expert system's structure is also reduced.The decision-making rules are given finally.

关 键 词：粗糙集 内燃机 故障诊断 专家系统 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程]