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研究随机 Petri网运行机制 ,提出了平均流量的概念 ,并利用流量平衡的原理 ,给出计算 Petri网各状态出现概率的算法。提出建立编组站作业系统模型的方法 ,并以列车到达 -解体环节为例 ,阐明利用这一算法对编组站各作业环节进行建模、计算和分析的方法。
The operating mechanism of stochastic Petri nets is studied, and the concept of average traffic is proposed. By using the principle of traffic balance, an algorithm for calculating the probability of each state of Petri nets is given. A method to establish the marshalling yard operating system model is put forward. Taking train arrival - disassembly as an example, the method of modeling, calculating and analyzing each operation link of marshalling yard by using this algorithm is illustrated.