高速动车组旅客信息系统流媒体服务器设计

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中图分类号：U293.2；TP39 文献标志码：B doi：10.20213/j. cnki.tdcl. 2025.03.004

Abstract：In the existing passenger information system of high-speed EMU， generally a single entertainment system controler is used to deploy and use the entertainment resources，which makes the functions of the entertainment system controller too complex and not easy to extend when the network traffic is increased.To solve the above-mentioned problem，an architecture is designed based on master-slave scheduling and mutual redundancy of dual master machines. It divides different functions of the master machine，the master spare machine and the slave machine，allows the mutual redundancy of the master machine and the master spare machine and reduces the number of slave machines according to the trafic，further improving the stability and the reliability of the whole system.

Key words： high-speed EMU； streaming media server; master-slave； redundancy; reliability

车载音视频多媒体功能一直是轨道交通车辆信息娱乐系统的必备功能，在正常情况下为旅客提供音视频娱乐、广告等多媒体信息，在火灾、列车故障以及恐怖袭击等非正常情况下提供紧急疏散提示等信息[1]。（剩余7030字）