Designing complex Petri nets using submodels with application in flexible manufacturing systems

What the authors propose in this paper is an intelligent method to use submodels of Petri net type in order to model complex discrete event systems (DES). Starting from the definition of the Petri network, a clear definition of submodels of such networks is proposed by the authors. The use of submodels in DES' analysis is exemplified by modeling of decision nodes of intelligent transport systems that are an integral part of flexible manufacturing systems. Starting from a particular model of a node with two inputs and two outputs, the authors propose a generalization of such a complex node, by proposing a model based on submodels for a node with n inputs and m outputs.