Supervisory Control of Discrete-Event Systems with Output

In this book, the problem of supervisory control of§Discrete-Event Systems (DES) with output is presented§and discussed at length. In such systems, causal§output functions are employed to assign each sequence§of inputs with a corresponding sequence of outputs.§When the specification of the desired behavior is§given by a formal language over the output alphabet,§necessary and sufficient conditions are derived for§the existence of nonblocking input as well as§nonblocking output supervisory controls. An algorithm§is presented to extend the results of nonblocking§input/output supervisory control from language-based§framework into nite automata framework, making the§proposed results applicable to large scale§discrete-event systems. The idea of siblings is§introduced to solve the problem of nondeterminism in§discrete-event abstractions of hybrid systems, giving§rise to the development of a theory for nonblocking§supervisory control of hybrid systems. Our results§enable one to apply classical supervisory control§theory to design supervisors for DES approximations§of hybrid systems, and should be useful for§professionals and researchers in Hybrid and control§systems