Presentation 2009-11-27
Diagnosis of Discrete Event Systems Modeled by Mealy Automata with Nondeterministic Output Functions
Shigemasa TAKAI, Toshimitsu USHIO,
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Abstract(in English) In the conventional framework for failure diagnosis of discrete event systems, it is assumed that, for each event, the corresponding output symbol is determined uniquely. However, this assumption does not hold in discrete event systems such as a mobile system. In this paper, we model such a discrete event system by a Mealy automaton with a nondeterministic output function, and consider a diagnosis problem that requires any occurrence of a failure should be detected within a uniformly bounded number of steps. We present a necessary and sufficient condition for the existence of a diagnoser. We then present an algorithm for verifying this condition.
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Keyword(in English) discrete event system / diagnosis / diagnosability / Mealy automaton / nondeterministic output function
Paper # CAS2009-53,CST2009-26
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Committee CST
Conference Date 2009/11/19(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Diagnosis of Discrete Event Systems Modeled by Mealy Automata with Nondeterministic Output Functions
Sub Title (in English)
Keyword(1) discrete event system
Keyword(2) diagnosis
Keyword(3) diagnosability
Keyword(4) Mealy automaton
Keyword(5) nondeterministic output function
1st Author's Name Shigemasa TAKAI
1st Author's Affiliation Graduate School of Engineering, Osaka University()
2nd Author's Name Toshimitsu USHIO
2nd Author's Affiliation Graduate School of Engineering Science, Osaka University
Date 2009-11-27
Paper # CAS2009-53,CST2009-26
Volume (vol) vol.109
Number (no) 301
Page pp.pp.-
#Pages 6
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