基于PIC微处理器激光调制扫平仪与接收器的设计

Laser Swinger and Receiver's Design Based on the PIC Monolithic Integrated Circuit's Laser Modulation

该设计使用Microchip微处理器PIC16F676做中央控制单元,发挥中央控制运算的功能,通过编程PWM调制脉宽输出激光信号,接收器接收激光信号可以通过LED显示激光线的状态,此接收器使用硅光电池接收,通过滤波器滤波、放大器放大信号,比较器产生矩形调制信号,再通过单片机解调出信号,完成整个测量过程。

This design uses Microchip microprocessor PIC16F676 to make the central control unit to play a central control operation function and through programs the PWM modulation pulse width output laser signal. The receiver receives laser signal through LED which can demonstrate the state of laser line, the receiver then uses silicon photoelectric generator to receive, filter and amplify the signal. The comparator produces a rectangular modulated signal, and demodulates the signal through the monolithic integrated circuit, completes the entire measuring process.