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AUTOMATICA
2002

On optimal control of a class of partially observed discrete event systems

8 years 12 months ago
On optimal control of a class of partially observed discrete event systems
We are interestedin a newclassof optimal control problemsfor DiscreteEvent Systems (DES). Weadopt theformalismof supervisorycontrol theory 10] andmodel thesystemas a nitestatemachine(FSM). Ourcontrol problemis characterized bythepresenceof uncontrollableas well as unobservableevents, thenotionof occurrenceandcontrol costsforeventsanda worst-caseobjectivefunction.We rstderiveanobserverforthepartiallyunobservableFSM,whichallowsustoconstructan approximationof theunobservabletrajectorycosts.Wethende netheperformancemeasureonthisobserverratherthanon theoriginal FSMitself. Wethenusethealgorithmpresentedin 11] to synthesizean optimal submachineof theC-observer. Thissubmachineleadstothedesiredsupervisorforthesystem.
Hervé Marchand, Olivier Boivineau, St&eacut
Added 16 Dec 2010
Updated 16 Dec 2010
Type Journal
Year 2002
Where AUTOMATICA
Authors Hervé Marchand, Olivier Boivineau, Stéphane Lafortune
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