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Hierarchical Supervisory Control Based on Discrete Event Systems With Flexible Marking

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2 Author(s)
da Cunha, A.E.C. ; Inst. Mil. de Engenharia, Rio de Janeiro ; Cury, J.E.R.

This paper proposes a two-level hierarchical supervisory control scheme for a discrete event system (DES), where the low-level is represented in the standard Ramadge-Wonham framework and the high level is represented by a DES with flexible marking (DESFM). As shown, the flexibility in the definition of marking provided by a DESFM simplifies the modeling of the high-level marking behavior. This approach, when compared with other approaches, requires less events and states to model the high-level, while guaranteeing hierarchical consistency.

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Automatic Control, IEEE Transactions on  (Volume:52 ,  Issue: 12 )