Submodule Construction and Supervisory Control: A Generalization

  • Authors:
  • Gregor von Bochmann

  • Affiliations:
  • -

  • Venue:
  • CIAA '01 Revised Papers from the 6th International Conference on Implementation and Application of Automata
  • Year:
  • 2001

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Abstract

We consider the following problem: For a system consisting of two submodules, the behavior of one submodule is known as well as the desired behavior S of the global system. What should be the behavior of the second submodule such that the behavior of the composition of the two submodules conforms to S ? - This problem has also been called "equation solving", and in the context of supervisory control, it is the problem of designing a suitable controller (second submodule) which controls a given system to be controlled (first submodule). Solutions to this problem have been described by different authors for various assumptions about the underlying communication mechanisms and conformance relations. We present a generalization of this problem and its solution using concepts from relational database theory. We also show that several of the existing solutions are special cases of our general formulation.