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Developing a Petri Nets based Real-Time Control Simulator

Petri net is a powerful tool for modeling and simulation of discrete event dynamic systems (DEDS). This paper is about developing a new real-time control simulator based on Petri net. This paper presents some of the design challenges that were dealt with during the development stages of the simulator; the design issues were: realization of token gaming (time requirements in consumption of input tokens and creation of output tokens), representation of event continuity (whether places or transitions represent event continuity), and interaction with the external influences (whether to map places or transitions to interact with external events). This paper shows that the following were found to be the most suitable for development of the real-time control simulator: ASAP firing for realization of token gaming, transition for representing continuity of events, and transition (with the pre and post definitions) for interacting with external event).