In view of the disadvantages of the domestic urban rail transit passenger information system with monotonous information, poor visual display, high modifying cost, long modifying time, and difficult editing etc., the paper discusses and introduces the design of passenger information system based on LCD dynamic map and the design principle of the system, control signals transmission, and receive process.%文章针对国内城市轨道交通乘客信息系统显示信息单调、直观性差、修改成本高、时间长、编辑难度大等缺点，设计了基于 LCD动态地图的乘客信息系统，并对系统的原理设计，以及控制信号的发送、接收流程作了阐述。
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