On supervisory control of a class of discrete event systems modeled by Petri nets

Document Type

Conference Proceeding

Publication Date

12-1-2007

Abstract

This paper develops a deadlock prevention policy for Petri nets that can model concurrent manufacturing assembly processes in flexible manufacturing systems (FMS). They can be modelled by a class of nets, namely G-systems. They are supervised to have the non-blocking property of the behavior, i.e., from any reachable state, a desirable state can be always obtained under supervision. Their deadlock situations in terms of insufficiently marked siphons can be characterized. The proposed approach is to make these siphons satisfy controlled-siphon property (cs-property) if the elementary siphons are properly supervised. Compared with the existing policies, the advantage of the method is that a much smaller number of supervisory monitors and arcs are added and iterative computing processes are avoided. Finally, an application of this technique to a G-system is presented. © 2007 IEEE.

Identifier

44449106738 (Scopus)

ISBN

[1424411548, 9781424411542]

Publication Title

Proceedings of the 3rd IEEE International Conference on Automation Science and Engineering IEEE Case 2007

External Full Text Location

https://doi.org/10.1109/COASE.2007.4341801

First Page

1

Last Page

6

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