Fault detection and isolation based on fuzzy automata

被引：25

作者：

Rigatos, Gerasimos G. ^{[1
]}

机构：

[1] Ind Syst Inst, Unit Ind Automat, Rion 26504, Greece

来源：

INFORMATION SCIENCES | 2009年 / 179卷 / 12期

关键词：

Fuzzy automata; Fault detection and isolation; Pattern matching; Syntactic analysis; DISCRETE-EVENT SYSTEMS; DIAGNOSIS; DIAGNOSABILITY; RECOGNITION;

D O I：

10.1016/j.ins.2009.01.015

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Fuzzy automata are proposed for fault diagnosis. The output of the monitored system is partitioned into linear segments which in turn are assigned to pattern classes (templates) with the use of membership functions. A sequence of templates is generated and becomes input to fuzzy automata which have transitions that correspond to the templates of the properly functioning system. If the automata reach their final states, i.e. the input sequence is accepted by the automata with a membership degree that exceeds a certain threshold, then normal operation is deduced, otherwise, a failure is diagnosed. Fault diagnosis of a DC motor and detection of abnormalities in the ECG signal are used as case studies. (c) 2009 Elsevier Inc. All rights reserved.

引用

页码：1893 / 1902

页数：10

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