介绍了一种太阳能自动跟踪系统的设计方法，利用灵敏度高的光敏器件根据入射光线的强弱变化产生反馈信号到ADμC812单片机，单片机运行程序驱动步进电机，调整采光板的角度实现对太阳的跟踪。%The generation efficiency of photovoltaic system without tracing device is lower .This paper introduces a new kind of solar energy automatic tracking system , using the photosensitive device with high sensitivity to produce the feedback signal to the AT89C51 microcontroller with the changes in the strength of the incident light .Then the microcontroller will run the program to drive stepper motor and adjust the lighting board’s angle to track the sun .
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