摘要
为进一步提高交互式铁路系统的数据传输效率,提出低延迟技术的铁路系统的架构设计,以解决交互式铁路系统的传输效率低、延迟时间长等问题。基于低延迟缓存的铁路视频数据传输过程分为2个阶段:非高峰时段的预缓存阶段和在线传输阶段,并通过状态转移矩阵生成的决策掩码实现交互式铁路系统的快速响应。仿真实验结果表明,平均延迟时间和节点的计算时间均随节点数量增加而增加,但低延迟技术在节点数量为300时,延迟达到最低22.5 ms。当任务请求数量大于3000时,低延迟技术的延迟时间达到最低29.1 ms,远低于其他算法。因此利用低延迟技术可以极大降低铁路系统的延迟,提高系统的数据传输能力。
In order to further improve the data transmission efficiency of the interactive railway system,the architec⁃ture design of the railway system with low latency technology is proposed to solve the problems of low transmission efficiency and long latency time of the interactive railway system.The process of railway video data transmission based on low-latency cache is divided into two stages:pre-caching stage in off-peak hours and online transmission stage,and the fast response of interactive railway system is realized by decision mask generated by state transition matrix.The simulation experiment results show that the average latency time and the calculation time of the nodes increase with the increase of the number of nodes,but the low latency technology reaches the minimum latency of 22.5 ms when the number of nodes is 300.When the number of task requests is greater than 3000,the latency time of the low-latency technology reaches a minimum of 29.1 ms,which is much lower than other algorithms.Therefore,the use of low-latency technology can greatly reduce the latency of the railway system and improve the data transmis⁃sion capacity of the system.
作者
高晓明
GAO Xiaoming(CHN Energy Shuohuang Railway Development Co.,Ltd.,Yuanping 034101,Shanxi China)
出处
《粘接》
2025年第8期185-188,共4页
Adhesion
关键词
铁路系统
低延迟技术
数据传输
延迟时间
吞吐量
railway systems
low latency techniques
data transmission
latency time
throughput
