Abstract

This chapter deals with modelling and control of discrete event systems. Discrete event systems (DES) are event driven man made systems whose evolution is guided by occurrences of asynchronous events as opposed to classical time driven discrete or continuous systems. DES are modelled by tools from computer science like automata, Petri nets and process algebras. There are two major streams in control theory of DES. The first stream, known as supervisory control theory, has been introduced by Wonham and Ramadge for logical automata, e.g. (Ramadge & Wonham,1989).

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