本方案所涉及的点光源跟踪系统采用光敏三级管来检测点光源，并且利用比较比较器来判断电压高低，从而获知各个光敏传感器接收到的光的强弱来判断点光源的位置。-The program involves a point light source tracking system using three tubes sensitive to detect the point light source, and the use of relatively high and low voltage comparator to determine, thereby learns the respective photosensors to light intensity received to determine the position of a point light source.