SYNTHESIS EQUIVALENCE OF TRIPLES
Report, 2014

This working paper describes a framework for compositional supervisor synthesis, which is applicable to all discrete event systems modelled as a set of deterministic automata. Compositional synthesis exploits the modular structure of the input model, and therefore works best for models consisting of a large number of small automata. The state-space explosion is mitigated by the use of abstraction to simplify individual components, and the property of synthesis equivalence guarantees that the final synthesis result is the same as it would have been for the non-abstracted model. The working paper describes synthesis equivalent abstractions and shows their use in an algorithm to efficiently compute supervisors. The algorithm has been implemented in the DES software tool Supremica and successfully computes nonblocking modular supervisors, even for systems with more than 1014 reachable states, in less than 30 seconds.

synthesis

Supervisory control theory

abstraction

automata

Author

Sahar Mohajerani

Chalmers, Signals and Systems, Systems and control, Automation

Robi Malik

Martin Fabian

Chalmers, Signals and Systems, Systems and control, Automation

Subject Categories

Production Engineering, Human Work Science and Ergonomics

Areas of Advance

Production

R - Department of Signals and Systems, Chalmers University of Technology: 1403-266X

More information

Created

10/7/2017