一种离散随机Petri网的性能计算和分析方法

为了有效地计算离散事件动态系统Petri网模型的时间性能,用一种离散扩展随机Petri网建立系统的性能模型,采用基于T-组件网的化简技术,结合等效延迟时间和概率分布不变的计算方法,求解和分析Petri模型的时间性能参数.实验结果表明,变迁不仅可以被赋予任意的延迟时间和概率分布,而且计算结果也具有很高的精度,为离散事件动态系统的建模和性能计算与分析提供了一种有效的数值化计算方法.

Calculating and analyzing method for performance of discrete stochastic Petri nets

For effectively calculating the time performance of Petri net models of discrete event dynamic(DEDS) system,the performance indices of Petri net model are calculated and analyzed by using reductive techniques based on T-components,combining with the approach for equivalent time delay and probability distribution calculating.The experiments illustrates that not only arbitrary time delay and probability distribution can be assigned to transitions,the calculation results also have very high precision.Therefore an effective method is provided for modeling and performance calculation and analysis of DEDS.