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基于模糊逻辑和证据理论的故障诊断方法
引用本文:吴晓平,郑之松,付钰.基于模糊逻辑和证据理论的故障诊断方法[J].海军工程大学学报,2012(1):10-14,51.
作者姓名:吴晓平  郑之松  付钰
作者单位:海军工程大学电子工程学院;海军司令部军训部
基金项目:国家自然科学基金资助项目(60774029)
摘    要:针对故障诊断过程中信息损失的问题和D-S证据理论在处理模糊信息时的局限性,在模糊逻辑的基础上,将决策级信息融合技术应用于故障诊断系统中,提出了一种基于模糊逻辑和D-S证据理论相结合的多传感器信息融合综合故障诊断方法。该方法以模糊隶属函数来实现基本可信度分配,充分利用各种传感器的冗余和互补信息,可显著提高故障诊断的准确率,实例验证了该方法的合理性和有效性。

关 键 词:模糊逻辑  D-S证据理论  故障诊断

Fault diagnosis method based on fuzzy logic and evidence theory
WU Xiao-ping,ZHENG Zhi-song,FU Yu.Fault diagnosis method based on fuzzy logic and evidence theory[J].Journal of Naval University of Engineering,2012(1):10-14,51.
Authors:WU Xiao-ping  ZHENG Zhi-song  FU Yu
Institution:1(1.College of Electronic Engineering,Naval Univ.of Engineering,Wuhan 430033,China; 2.Dept.of Military Affairs,Navy Headquters,Beijing 100841,China)
Abstract:Aiming at the problem of information missing in the process of fault diagnosis and the limitation of D-S evidence theory in dealing with fuzzy information,a method of synthetical fault diagnosis using multi-sensor fusion is proposed based on the fuzzy logic and D-S evidence theory.The method uses fuzzy membership function to realize the basic reliability distribution.Also the redundancy and complementarities for information of multi-sensor is fully used to improve the accuracy of fault diagnosis.The results show that the method is reasonable and effective.
Keywords:fuzzy logic  D-S evidence theory  fault diagnosis
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