NDLI: Online fault diagnosis of modular discrete-event systems

Content Provider	IEEE Xplore Digital Library
Author	Cabral, Felipe G. Moreira, Marcos V. Diene, Oumar
Copyright Year	2015
Description	Author affiliation: COPPE-Electrical Engineering Program, Federal University of Rio de Janeiro, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, 21.945-970, Brazil (Cabral, Felipe G.; Moreira, Marcos V.; Diene, Oumar)
Abstract	In general, systems are formed by the composition of several modules, local components or subsystems, and may exhibit a large number of states. The growth of the global system model with the number of system components leads to high computational costs for diagnosis techniques based on the global model. In order to circumvent this problem, several works in the literature address the problem of modular fault diagnosis of discrete event systems. In these works, the computation of the global system model is avoided, and the diagnosability of the language of the system is inferred from the behavior of its components. In this paper, a new approach to online diagnosis of modular systems is presented. The method is based on the computation of a Petri net diagnoser, called as synchronized Petri net diagnoser (SPND), that is constructed from the nonfaulty behavior of the modules of the system. We also introduce the definition of synchronous diagnosability of the language of a modular system with respect to the languages of its modules, and present an algorithm to verify this property.
Starting Page	4450
Ending Page	4455
File Size	387285
Page Count	6
File Format	PDF
e-ISBN	9781479978861
DOI	10.1109/CDC.2015.7402914
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-12-15
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Petri nets Fault diagnosis Computational modeling Automata Discrete-event systems Synchronization Observers
Content Type	Text
Resource Type	Article

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