HAL : hal-00595107, version 1

DOI : 10.1109/DCDS.2011.5970315

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3rd International Workshop on Dependable Control of Discrete Systems - DCDS 2011, Saarbrücken : Allemagne (2011)

Timed Residuals for Fault Detection and Isolation in Discrete Event Systems

Stefan Schneider (  Auteur correspondant ) 1, Lothar Litz 1, Mickaël Danancher 1, 2

(17/06/2011)

In this paper a new attempt for fault detection and isolation in discrete event systems is proposed. An identified model constitutes a timed observer of the fault-free system behavior. Non-acceptable plant operation is detected by comparing the behavior of the model with the observed system output. For fault isolation, timed residuals and generic fault symptoms - early and late events - are introduced. Time bounds are composed using Boolean conditions and statistical analysis. In case of a fault, timed and untimed residuals are concluded in order to refine a set of potential faulty candidates. The method is applied to the given benchmark system of a virtual production plant with an external controller.

1 :	Institute of Automatic Control (AT+)
	Kaiserslautern University of Technology
2 :	Laboratoire Universitaire de Recherche en Production Automatisée (LURPA)
	École normale supérieure de Cachan - ENS Cachan – Université Paris XI - Paris Sud

Domaine

:

Sciences de l'ingénieur/Automatique / Robotique

Mots Clés : Discrete Event System – Timed Automata – Timed Residuals

hal-00595107, version 1

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Contributeur : Mickaël Danancher <>

Soumis le : Lundi 23 Mai 2011, 16:57:10

Dernière modification le : Jeudi 10 Mai 2012, 14:59:44