太阳光线跟踪检测电路的设计

The Design of Solar Ray Tracking Circuit

太阳能资源的有效利用是新能源技术的研究课题之一,太阳光线跟踪装置是太阳自动跟踪系统重要环节。采用集成逻辑电路实现的光线强度检测装置,是利用电压比较器对输入端光敏电阻电位信号运算,得出高低电平代表有光与无光两个状态。该电路在使用过程中存在两方面问题:首先,输入信号与基准信号比较判断时易出现误动作;其次,电路无法跟踪光线投射运行轨迹。针对上述问题,利用单片机检测技术设计了太阳光线跟踪检测电路。

The effective utilization of solar energy is one of the research topics of new energy technology. The solar ray tracking device is an important part of the automatic solar tracking system. The light intensity detection device realized by the integrated logic circuit is used to calculate the input terminal photosensitive resistivity signal with the voltage comparator, and the two states of light and light are obtained. The circuit has two problems in the process of use： first, when the input signal is compared with the reference signal, it is easy to misstep; second, the circuit cannot track the trajectory of the light. Aiming at the above problems, the solar ray tracking and detection circuit is designed by using the single chip microcomputer. Key words： photosensitive resistance; voltage comparator; differential amplifier;PIC Single-chip microcontroller