Compositional Synthesis of Discrete Event Systems Using Synthesis Abstraction
Paper in proceedings, 2011
This paper proposes a general method to synthesize
a least restrictive supervisor for a large discrete event
system model, consisting of a large number of arbitrary
automata representing the plants and specifications. A new
type of abstraction called synthesis abstraction is introduced
and three rules are proposed to calculate an abstraction of a
given automaton. Furthermore, a compositional algorithm for
synthesizing a supervisor for large-scale systems of composed
finite-state automata is proposed. In the proposed algorithm, the
synchronous composition is computed step by step and intermediate
results are simplified according to synthesis abstraction.
Then a supervisor for the abstracted system is calculated,
which in combination with the original system gives the least
restrictive, nonblocking, and controllable behaviour.
state space explosion.
Supervisory control theory