尤物国产精品-丝袜a∨在线一区二区三区不卡-国产综合色一区二区三区-国产一级淫-亚洲精品日韩成人-国产精品视频不卡-手机在线视频一区-国产亚洲一区91-欧美国产日韩精品-富二代-久久久久久久久毛片精品

When solar photovoltaic panels, especially large-area solar photovoltaic panel arrays or photovoltaic systems are installed on the ground or water surface, they need to track the sun's movement in real time, adjust the orientation of photovoltaic modules, make the sun shine directly to the light-receiving plane of the photovoltaic panel, and improve the photovoltaic power generation. During installation, the angle should be adjusted according to the local latitude, and during operation, it should also be adjusted according to the seasonal changes. All these require sensors to achieve accurate angle and displacement motion control.