基于确定性与随机性佩特里网的轨道交通车车通信系统可靠性分析  

Reliability Analysis of Rail Transit T2T Communication System Based on Deterministic and Stochastic Petri Nets

作　　者：王曦 赵恒凯[1] 韩熠 郑国莘[1] Wang Xi

机构地区：[1]上海大学特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实室,上海200444 [2]卡斯柯信号有限公司,上海200071

出　　处：《工业控制计算机》2025年第2期21-24,共4页Industrial Control Computer

基　　金：上海市科委重点项目(22ZR1422200);轨道交通高可信车地协同与高可靠车车通信研究,2022-2025年。

摘　　要：列车对列车(Train toTrain,T2T)通信被提出作为轨道交通信号系统的一种全新解决方案。为了评估车车通信系统采用LTE-M传输网络时的可用性和通信性能,描述了T2T的系统结构,并讨论了不同场景路径损耗引起的接收端信噪比以至通信误码率。在此基础上,将确定性与随机性佩特里网应用于通信系统的形式化,数值分析是在考虑误比特率和传输速率等不同参数下进行的。结果表明,所应用的方法可以用于评估T2T数据通信系统的性能和可用性。Train to Train(T2T)communication has been proposed as a novel solution for rail transit signal systems.In order to evaluate the availability and communication performance of train to train communication systems using LTE-M transmission networks,this paper describes the system structure of T2T and discusses the receiver signal-to-noise ratio and communication error rate caused by path loss in different scenarios.On this basis,the Deterministic and Stochastic Petri Nets(DSPN)are applied to formalize communication systems.The numerical analysis in this paper is conducted considering different parameters such as bit error rate and transmission rate.The results indicate that the method applied in this paper can be used to evaluate the performance and availability of T2T data communication systems.

关 键 词：T2T通信 可靠性分析 DSPN LTE-M 

分 类 号：U285.2[交通运输工程—交通信息工程及控制] TN929.5[交通运输工程—道路与铁道工程]