一种城轨车站广播电路的设计

Design on City Rail Station Broadcasting Circuit

为了解决传统车站广播电路复杂和采用的电源线和信号线分开的方式而导致施工成本高的问题。设计了一种城轨车站广播电路。采用依次相连的前端调理电路、远程传输电路、差分放大电路以及功放电路,可实现电源线和信号线同一电缆进而远程供电的功能。同时,避免电源线和信号线分开的情况,节省了施工成本,适合车站这种长距离的应用场合。

In order to solve the problems of traditional station broadcasting circuit complexity and the use of power lines and signal lines separated from the way leading to high construction costs. A city rail station broadcast circuit is designed. Using successively connected front-end conditioning circuit, remote transmission circuit, differential amplifier circuit and power amplifier circuit,it can realize the function of power line and signal wire in the same cable and remote power supply. At the same time, avoiding the separation of power line and signal line, saving the construction cost, suiting the station this long-distance application situation.