Name
Abstract | ||
|---|---|---|
Decomposition and localization of a supervisor are both reduction methods in distributed supervisory control of discrete-event systems. Decomposition is employed to reduce the number of events and localization is used to reduce the number of states of local controllers. In decomposition of a supervisor both observation and control scopes are restricted, whereas in localization only control authority is restricted to the corresponding local controller. In this paper, we propose a decomposition method by defining a coparanormality property, and by using the relative observability property of a monolithic supervisor. Coparanormality is a coobservation property defined based on a paranormality property for a set of natural projections. It is shown that each supervisor can be coparanormal, provided a set of appropriate natural projections exist. Moreover, it is proved that relative observability is a sufficient condition to decompose a supervisor. Furthermore, the supervisor localization procedure is generalized to find a set of local controllers for any partition of the controllable events set. The implementation of such local controllers may become easier in industrial systems. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1002/asjc.2349 | ASIAN JOURNAL OF CONTROL |
Keywords | Field | DocType |
control equivalent, coparanormality, decentralized supervisory control, discrete-event systems, distributed supervisory control | Supervisor,Observability,Control theory,Control theory,Industrial systems,Supervisory control,Decomposition method (constraint satisfaction),Control engineering,Partition (number theory),Mathematics | Journal |
Volume | Issue | ISSN |
23 | 4 | 1561-8625 |
Citations | PageRank | References |
0 | 0.34 | 12 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Vahid Saeidi | 1 | 0 | 0.34 |
| Ali Afzalian | 2 | 2 | 3.37 |
| Davood Gharavian | 3 | 117 | 10.06 |