系统以SPCE061A为核心，检测键盘模块和流量检测模块，根据检测结果按照程序设定的方式去控制红绿灯模块、倒计时数码管模块和放音模块。本系统共有4组双色LED指示灯，分别接交通灯模组的CS0、CS1、CS2、CS3脚，由61板的IOB的0、1、2、3脚供电，20盏灯的亮暗变化分成4种状态，每种状态亮5盏灯，由程序决定亮哪5盏；4个数码管的高位都接CS4脚,由61板的IOB的4脚供电, 低位都接CS5脚, 由61板的IOB的5脚供电，由键盘输入其倒计时间，数码管每秒钟变化一次；由61板内部的DAC控制播音。-SPCE061A as the core system to detect the keyboard module and flow detection module, according to test results in accordance with the procedures set way to control traffic lights module, countdown digital tube module and playback module. The system a total of 4 two-color LED indicator light, respectively, then the traffic light module CS0, CS1, CS2, CS3 feet by 61 of the IOB board feet of 0,1,2,3 electricity, 20 of the bright lights dark Change is divided into four kinds of state, each state-liang five lights, which by the procedures for determining 5-liang　four digital tubes are then CS4 feet high, from 61 of the IOB board feet of 4 power supply, low are then CS5 feet, IOB board by 61 of the 5 foot power supply, keyboard input from its countdown, the second change in a digital tube　by the 61 board DAC to control the internal radio.