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Modeling shared resources with generalized synchronization within a Petri net bottom-up approach

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2 Author(s)
Ferrarini, L. ; Dipartimento di Elettronica e Inf., Politecnico di Milano, Italy ; Trioni, M.

This paper proposes a simple and effective way to represent shared resources in manufacturing systems, within a Petri net model previously developed. Such a model relies on the bottom-up and modular approach to synthesis and analysis. The designer may define elementary tasks and then connect them with one another with three kinds of connections: self-loops, inhibitor arcs and simple synchronizations. A theoretical framework has been established for the analysis of liveness and reversibility of such models. The generalized synchronization, here formalized, represents an extension of the simple synchronization, allowing the merging of suitable subnets among elementary tasks. It is proved that under suitable, but not restrictive, hypotheses the generalized synchronization may be substituted for a simple one

Published in:

Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on  (Volume:2 )

Date of Conference:

5-9 Sep 1994