Supervisory control of fuzzy discrete event systems

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Journal Article
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics, 2005, 35 (2), pp. 366 - 371
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To cope with situations in which a plant's dynamics are not precisely known, we consider the problem of supervisory control for a class of discrete event systems modeled by fuzzy automata. The behavior of such discrete event systems is described by fuzzy languages; the supervisors are event feedback and can only disable controllable events with any degree. In this new sense, we present a necessary and sufficient condition for a fuzzy language to be controllable. We also study the supremal controllable fuzzy sublanguage and the infimal controllable fuzzy superlanguage. © 2005 IEEE.
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