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Petri nets are an effective way to model, analyze, and control deadlocks in automated manufacturing systems (AMS). There are three important criteria in designing and evaluating a liveness-enforcing supervisor for a system to be controlled: behavioral permissiveness, structural complexity, and computational complexity. A maximally permissive supervisor can lead to high utilization of system resources...
In this paper, a method is proposed for the computation of liveness enforcing supervisors (LES) from submodels of a Petri net model (PNM) of a flexible manufacturing system (FMS). Given the PNM of an FMS prone to deadlock, it aims to synthesize a live controlled Petri net. The PNM of the system is divided into small connected subnets (submodels). Each connected subnet prone to deadlock is then used...
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