轨道交通乘客信息系统(简称PIS)是以通信和多媒体技术为基础,基于多种显示终端为乘客提供全方位、多场景的信息服务系统；本文分析和研究了目前轨道交通乘客信息系统面临的硬件投资过剩、部署调试效率低、信息播放链路长、故障点多、可靠性差的难点,变革了传统的音视频传输方式,提出了“系统入云、播控入屏”的新一代乘客信息系统的云播控架构,终端显示设备直接接入云端管理控制,减少了传统方案下50%的传输故障节点,保障乘客信息系统稳定可靠运行。

The Rail Transit Passenger Information System (PIS) is a comprehensive and multi scenario information service system based on communication and multimedia technology, providing passengers with various display terminals; This article analyzes and studies the difficulties faced by the current rail transit passenger information system, such as excessive hardware investment, low deployment and debugging efficiency, long information playback links, multiple fault points, and poor reliability. It changes the traditional audio and video transmission methods and proposes a new generation of passenger information system cloud broadcast control architecture with "system in cloud, broadcast control in screen", where terminal display devices are directly connected to cloud management and control, Reduced 50% of transmission failure nodes under traditional solutions, ensuring stable and reliable operation of passenger information systems.

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