无线数字抄表系统由中央处理器、电源模块、通讯模块以及显示模块等部分组成-Wireless digital meter reading system by the CPU, power supply module, communication module and display module and other components

AD采样，数字测频器，直流稳压电源，液晶显示和键盘数码管显示-AD sampling, digital frequency measurement, DC power supply, LCD display and keypad LED display