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Qualitative diagnosability of labeled petri nets revisited

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1 Author(s)
Stefan Haar ; INRIA LSV, Ecole Normale Supérieure de Cachan, 61, avenue du Président Wilson, 94235, France35042 Rennes cedex, France

In recent years, classical discrete event fault diagnosis techniques have been extended to Petri Net system models under partial order semantics. In, we showed how to take further advantage of the partial order representation of concurrent processes, by decomposing the unfolding into `facets', formed by subnets whose events either all occur eventually, or none of them occurs. A notion of q(ualitative)-diagnosability was proposed in based on this decomposition. The present paper corrects the definition of q-diagnosability and develops its properties. Sufficient and necessary criteria, on the transition labeling, for q-diagnosability are shown; for their verification, and diagnosis itself, compact data structures are sufficient.

Published in:

Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on

Date of Conference:

15-18 Dec. 2009