| Autor: |
Jean-Jacques Lesage, Matthias Roth, Lothar Litz |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
IFAC Proceedings Volumes. 42:305-310 |
| ISSN: |
1474-6670 |
| DOI: |
10.3182/20090610-3-it-4004.00057 |
| Popis: |
In this paper an approach for fault localization in Discrete Event Systems (DES) is proposed. The presented diagnosis method allows fault localization using a fault-free nominal system model. Via a systematic comparison of the observed and the expected system behavior, it is possible to determine a set of fault candidates. Inspired by residuals known from diagnosis in continuous systems, different set operations are presented that carry out this comparison. After a fault has been detected and a first estimate concerning its localization has been performed, a special algorithm analyzes the further system behavior in order to determine a more precise fault localization. The algorithm also works on the basis of the nominal system model. The method is explained using a manufacturing system example. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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