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Synthesis Of Optimal Dynamic Observers for Fault Diagnosis of Discrete-Event Systems

Abstract : Fault diagnosis consists in synthesizing a diagnoser that observes a given plant through a set of observable events, and identifies faults which are not observable as soon as possible after their occurrence. Existing literature on this problem has considered the case of static observers, where the set of observable events does not change during exe- cution of the system. In this paper, we consider dynamic observers, where the observer can switch sensors on or off, thus dynamically changing the set of events it wishes to observe. We define a notion of cost for such dynamic observers and show that (i) the cost of a given dynamic observer can be computed and (ii) an optimal dynamic observer can be synthesized.
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https://hal.inria.fr/inria-00363031
Contributor : Franck Cassez <>
Submitted on : Friday, February 20, 2009 - 1:19:17 AM
Last modification on : Thursday, November 19, 2020 - 3:58:01 PM
Long-term archiving on: : Tuesday, June 8, 2010 - 10:44:35 PM

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  • HAL Id : inria-00363031, version 1

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Franck Cassez, Stavros Tripakis, Karine Altisen. Synthesis Of Optimal Dynamic Observers for Fault Diagnosis of Discrete-Event Systems. 1st IEEE \& IFIP Int. Symp. on Theoretical Aspects of Soft. Engineering (TASE'07), Jun 2007, Shanghai, China. pp.316--325. ⟨inria-00363031⟩

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