Title :
Hierarchical supervisory control of fuzzy discrete event systems
Author :
Jayasiri, A. ; Mann, G.K.I. ; Gosine, R.G.
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´s, NL, Canada
fDate :
June 29 2011-July 1 2011
Abstract :
Hierarchical structuring of supervisory control which represents the vertical modularity, has been discussed in discrete event systems (DES) to resolve the control complexity of large-scaled systems. Recently, fuzzy discrete event systems (FDES) has been introduced as an extension to the crisp DES in order to better represent the uncertainties and imprecisions of asynchronous event driven dynamical systems. In this paper, we investigate the hierarchical supervisory control problem of FDES with partial observation for modeling large-scale systems with associated uncertainties in their states and event transitions. Some important definitions are introduced and a hierarchical supervisory control theory for FDES is established.
Keywords :
discrete event systems; fuzzy control; hierarchical systems; large-scale systems; asynchronous event driven dynamical system; control complexity; fuzzy discrete event system; hierarchical supervisory control theory; large scaled system; vertical modularity; Automata; Controllability; Discrete event systems; Observability; Supervisory control; Uncertainty;
Conference_Titel :
American Control Conference (ACC), 2011
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4577-0080-4
DOI :
10.1109/ACC.2011.5991437