Safety Monitoring Modeling and Real Time Safety Analysis Based on Petri Nets

In order to provide the efficient method for safety monitoring,this paper adopts the Petri nets to construct safety monitoring model and researches the qualitative and quantitative safety analysis based on Petri nets.The safety monitoring modeling based on Petri nest can effectively represent the system evolution from normal to danger;and especially can describe more than one danger event in one net.At last,the safety monitoring for nuclear reaction is illustrated to demonstrate the process of the constructing safety monitoring model and safety analysis.The method of safety monitoring modeling based on Petri nets is in accord with the human cognitive habits in descriptive way,and can reduce the complexity of modeling management for huge system.