基于时间参数的CTCS-1级RDC设置方式的研究

Research on CTCS-1 RDC setting rules based on time parameters

既有线车站分布情况复杂,存在一站多场、多站密集分布的情况,仅依据CTCS-1级区域列控数据中心(RDC)技术规范参数设置RDC,无法满足CTCS-1级列车在RDC切换时车地通信与控车数据更新需求.深入剖析基于单电台的CTCS-1级RDC列车切换场景,采用时间有色Petri网形式化方法对控车权移交过程参与对象进行模型抽象,通过CPN-Tools环境下的模型仿真,挖掘时速200km以下CTCS-1级列车移交过程车地通信中断时间范围,并将通信中断时间约束转化为距离约束,通过分析时间与距离约束探究既有线一站多场、多站密集分布场景下RDC的设置方式,为既有线RDC管辖边界点的选定提供理论依据与数据参考.

The distribution of the existing railway stations is complex,there are densely distributed stations,and one station may have many marshalling yards.It cannot meet CTCS-1 train’s communication and control data update demand during the Regional Data Center (RDC) switch if RDC is set up simply based on CTCS-1 RDC technical specification parameters. In this paper, CTCS-1 RDC train handover scenario based on one single radio station is deeply analyzed, and Timed Colored Petri Nets (TCPN) formal method is used to abstract participating objects in the train handover process.Then train-RDC communication interruption time range is obtained,when CTCS-1 train runs under 200 km/h during the handover process, through the model simulation under the CPN-Tools environment,and the communication interruption time constraint is transformed into distance constraint. Finally, RDC setting up method under station with multi marshalling yards and multi stations dense distribution scene is researched by analyzing time and distance constraints, which can provide the theoretical basis and data reference for the selection of RDC jurisdiction boundary point in the existing railway.