Stochastic DES Fault Diagnosis with Coloured Interpreted Petri Nets

Doyra Mariela Muñoz, Antonio Correcher, Emilio García and Francisco Morant

Mathematical Problems in Engineering, 2015, vol. 2015, 1-13

Abstract:

This proposal presents an online method to detect and isolate faults in stochastic discrete event systems without previous model. A coloured timed interpreted Petri Net generates the normal behavior language after an identification stage. The next step is fault detection that is carried out by comparing the observed event sequences with the expected event sequences. Once a new fault is detected, a learning algorithm changes the structure of the diagnoser, so it is able to learn new fault languages. Moreover, the diagnoser includes timed events to represent and diagnose stochastic languages. Finally, this paper proposes a detectability condition for stochastic DES and the sufficient and necessary conditions are proved.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:303107

DOI: 10.1155/2015/303107

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