Supervisory control of fuzzy discrete event systems

Author

Cao, Yongzhi ; Ying, Mingsheng

Author_Institution

Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing, China

Volume

35

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

366

Lastpage

371

Abstract

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.

Keywords

automata theory; discrete event systems; fuzzy control; fuzzy systems; fuzzy automata; fuzzy discrete event system; infimal controllable fuzzy superlanguage; supervisory control; supremal controllable fuzzy sublanguage; Automata; Automatic control; Communication system control; Control systems; Discrete event systems; Fuzzy control; Fuzzy neural networks; Fuzzy systems; Supervisory control; Uncertainty; Controllability; discrete event systems; fuzzy systems; infimal controllable fuzzy superlanguage; supremal controllable fuzzy sublanguage; Algorithms; Artificial Intelligence; Computer Simulation; Feedback; Fuzzy Logic; Information Storage and Retrieval; Models, Statistical; Numerical Analysis, Computer-Assisted; Signal Processing, Computer-Assisted; Stochastic Processes;

fLanguage

English

Journal_Title

Systems, Man, and Cybernetics, Part B: Cybernetics, IEEE Transactions on

Publisher

ieee

ISSN

1083-4419

Type

jour

DOI

10.1109/TSMCB.2004.842252

Filename

1408065