主要介绍了在快速移动的地铁列车上实现旅客资讯系统的几种方式,对相应的图像、数据传输的优缺点进行了分析,提出了适合于南京地铁1号线应用的基于DVB-丁技术的车载旅客资讯系统这个创新设计方案,并获得了成功应用。 This paper mainly introduces several ways to realize the passenger information system on the fast-moving subway train, analyzes the advantages and disadvantages of the corresponding image and data transmission, and proposes the DVB-D technology suitable for the application of Nanjing Metro Line 1 Car passenger information system of this innovative design, and has been successfully applied.