Abstract

We propose a logical framework for the control theory of reactive systems modeled by discrete event systems. The logic is the conjunctive nu-calculus, an expressive fragment of the powerful mu-calculus. Conjunctive nu-calculus possesses an alternative presentation based on modal specifications, with simple graphical representations. We exploit modal specification to specify and to solve the basic centralized control problem: our class of control objectives strictly subsumes the class of regular languages, normally used in the classic control theory of discrete-event systems, but the existence of maximally permissive solutions is however preserved.

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