该出租车计价器课程设计由：光信息采集电路模块、方波信号产生模块、单片机及其外围电路模块、键盘模块、显示模块四部分组成。设计利用方波信号发生器产生方波模拟采集的光电信号，经过单片机的控制与LED数码管显示模块的作用显示价钱和里程数。-The taxi meter course design by: optical information acquisition circuit module, square-wave signal generator module, microcontroller and its peripheral circuit module, the keyboard module, display module composed of four parts. Square-wave signal generator designed to generate square wave using analog optical signal collected through MCU control and LED digital tube display module displays the role of price and mileage.