网络数字广播在地铁车站PIS系统中的应用

Application of Network and Digital Broadcasting in Subway PIS System

结合当今地铁车站多媒体乘客信息系统(PIS)的完善与发展,提出一种基于以太网的地铁车站数字分区广播系统方案,给出了系统的总体结构,并对网络终端硬件结构和服务器端控制软件两方面进行了分析和设计。系统能够有效利用以太网资源,具有布线成本低、功能多和扩展性强等优点。经过测试,本系统实现了高质量传输和流畅的音频播放。

Along with rapid development of the Passage Information System （PIS） in subway station. A digital broadcast based on Ethernet used in PIS system of subway station is presented in this paper, emphatically the overall design of system is researched, hardware design of client and software design of server in PC. This system shows that it has low-cost and multi-function that can fit the need of PIS in subway broadcasting, will be popularly used. The test shows that this system can satisfy high quality transmission and freely broadcasting.