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RBC(无线闭塞中心)实时性能指标是影响CTCS-3级列控系统运行的关键要素。本文将随机Petri网和马尔可夫随机过程理论结合起来,提出一种新的系统性能分析方法,剖析CTCS-3级列控系统的运行机制,建立RBC子系统周期处理和非周期处理的随机Petri网模型,并利用ERTMS/ETCS的参考数据,分析GSM-R通信环境下RBC的实时性能,在不同系统周期和列车交互数量下得出RBC子系统平均延时曲线。本文对我国CTCS-3级列控系统的规范制定和系统开发具有一定的借鉴意义。
The RBC (Wireless Blocking Center) real-time performance metrics are key elements that affect the operation of a CTCS-3 train control system. This paper combines stochastic Petri nes and Markov stochastic process theory to propose a new method of system performance analysis, analyzes the operating mechanism of CTCS-3 train control system, builds the RTP subsystem periodic processing and non-periodic processing stochastic Petri Network model, and uses the reference data of ERTMS / ETCS to analyze the real-time performance of RBC in GSM-R communication environment and obtain the average delay curve of RBC subsystem under different system cycles and train interaction quantities. This article has some reference to the standardization and system development of CTCS-3 train control system in our country.