摘要
在对列车运行调度问题进行分析的基础上,通过综合受控Petri网、颜色Petri网和赋时Petri网的优势,提出一种混合Petri网模型并给出形式化描述和运行规则;采用混合Petri网建立包含设备故障和设备维修两种异常情况的列车运行调度的层次Petri网模型。通过对模型的分析,给出模型具有的两个性质,指出列车运行调度的本质是通过控制可控事件的发生时间来恢复列车的正常运行秩序。最后,以一个具有6个车站和5个区间的调度区段为例,采用CPN TOOLS仿真工具对模型进行了仿真。仿真结果表明了模型的有效性以及设备故障发生概率和列车运行可调整之间的关系。
Based on the analysis of train traffic control,a hybrid petri net was presented through integrating controlled petri net,colored petri net and timed petri net,and its formal description and operation rules were given.Based on this hybrid petri net,the hierarchical petri net model of the train traffic control was built,which took two abnormal factors into account,the equipment fault and the equipment maintenance.Through analyzing the model,two characters were given and it was pointed out that the train traffic control was to restore the train operation order in essence by controlling the time instant when the controlled event would happen.Finally,the CPN TOOLS was used to verify the model for one dispatch system including six stations and five sections.The results show the model＇s validity and the relation between the equipment fault ratio and train traffic control.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2011年第12期2793-2798,2804,共7页
Journal of System Simulation
基金
山西省自然科学基金(2008011033)
