On the synthesis of safe control policies in decentralized control of discrete-event systems

Kurt Rohloff, Stéphane Lafortune

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

State estimation and safe controller synthesis for a general form of decentralized control architecture for discrete-event systems is investigated. For this architecture, controllable events are assigned to be either "conjunctive" or "disjunctive." A new state estimator that accounts for past local control actions when calculating the set of estimated system states is presented. The new state estimator is applied to a previous general decentralized control law. The new control method generates a controlled language at least as large as that generated by the original method if a safety condition is satisfied. An algorithm for generating locally maximal control policies for a given state estimate is also discussed. The algorithm allows an amount of "steering" of the controlled system through an event priority mechanism.

Original languageEnglish (US)
Pages (from-to)1064-1068
Number of pages5
JournalIEEE Transactions on Automatic Control
Volume48
Issue number6
DOIs
StatePublished - Jan 1 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

Keywords

  • Decentralized control
  • Discrete-event systems
  • Maximal behavior

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