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Nonblocking supervisory control of state tree structures

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2 Author(s)
Chuan Ma ; Syst. Control Group, Univ. of Toronto, Ont., Canada ; Wonham, W.M.

It is well known that the nonblocking supervisory control problem is NP-hard, subject in particular to state space explosion that is exponential in the number of system components. In this paper we propose to manage complexity by organizing the system as a state tree structure (STS). STS are an adaptation of statecharts to supervisory control theory. Based on STS we present an efficient recursive symbolic algorithm that can perform nonblocking supervisory control design (in reasonable time and memory) for systems of state size 1024 and higher. The resulting controllers are tractable and readily comprehensible.

Published in:

Automatic Control, IEEE Transactions on  (Volume:51 ,  Issue: 5 )

Date of Publication:

May 2006

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