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如何提高铁路编组站资源利用率历来都是铁路运输领域的重点课题。该问题主要分为:编组站作业系统性能分析和资源运用计划编制。针对第一个问题,建立编组站作业系统随机Petri网(SPN)模型,定性分析了作业中资源竞争的原因。为了定量分析资源对编组站作业的影响,建立了作业系统资源共享随机Petri网(RSSPN)模型,模型中充分考虑了资源对作业的影响,并提出了模型化简方法缩小了求解规模,最后通过TINA和MATLAB求解系统稳定状态概率和性能指标。仿真结果表明此方法对分析编组站作业系统性能是非常有效的。
How to improve the railway marshalling station resource utilization has always been a key issue in the field of railway transportation. The problem is mainly divided into: marshalling yard operating system performance analysis and resource utilization plan preparation. In view of the first problem, a stochastic Petri net (SPN) model of marshalling yard operating system was established, and the reason of resource competition in operation was qualitatively analyzed. In order to quantitatively analyze the impact of resources on the operation of marshalling yard, a stochastic Petri net (RSSPN) model for operating system resource sharing was established. The model fully considered the impact of resources on the operation, and proposed a simplified model to reduce the size of the solution. Finally, TINA and MATLAB Solve System Stable State Probability and Performance Index. Simulation results show that this method is very effective in analyzing the performance of marshalling yard operating system.