Maximally Permissive Hierarchical Control of Decentralized Discrete Event Systems

Date

2011-04-01

Author

SCHMİDT, KLAUS WERNER
Schmidt, Klaus Verner

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The subject of this paper is the synthesis of natural projections that serve as nonblocking and maximally permissive abstractions for the hierarchical and decentralized control of large-scale discrete event systems. To this end, existing concepts for nonblocking abstractions such as natural observers and marked string accepting (msa)-observers are extended by local control consistency (LCC) as a novel sufficient condition for maximal permissiveness. Furthermore, it is shown that, similar to the natural observer condition and the msa-observer condition, also LCC can be formulated in terms of a quasi-congruence. Based on existing algorithms in the literature, this allows to algorithmically compute natural projections that are either natural observers or msa-observers and that additionally fulfill LCC. The obtained results are illustrated by the synthesis of nonblocking and maximally permissive supervisors for a manufacturing system.

Subject Keywords

Decentralized control, Discrete event systems, Hierarchical control, Large-scale systems, Maximal permissiveness, Supervisory control

URI

https://hdl.handle.net/11511/48492

Journal

IEEE TRANSACTIONS ON AUTOMATIC CONTROL

DOI

https://doi.org/10.1109/tac.2010.2067250

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

K. W. SCHMİDT and K. V. Schmidt, “Maximally Permissive Hierarchical Control of Decentralized Discrete Event Systems,” IEEE TRANSACTIONS ON AUTOMATIC CONTROL, pp. 723–737, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48492.