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本系统采用微处理器(单片机89C52、2051)实现小汽车的自动往返并达到时间的精确控制、起始位置的准确定位。信号检测部分采用抗干扰能力强的光电检测电路及数字接口;执行机构采用脉宽调制(PWM)技术实现对电机的精确控制;扩展电路实现对距离、时间、速度的检测与显示。软件部分采用汇编及C语言进行模块化编程使系统更加完善与合理。同时,对抗干扰方面,我们采用硬件抗干扰和软件抗干扰相结合的措施,使系统运行非常稳定。
The system uses microprocessors (SCM 89C52,2051) to achieve automatic car and to achieve the precise control of the time, the exact location of the starting position. Signal detection part of the anti-interference ability of the photoelectric detection circuit and digital interface; implementing agencies using pulse width modulation (PWM) technology to achieve precise control of the motor; expansion of the circuit to achieve the distance, time and speed of detection and display. The software part adopts assembler and C language to modularize the programming to make the system more perfect and reasonable. At the same time, the countermeasures against interference, we use hardware anti-jamming and software anti-jamming combination of measures to make the system run very stable.