中文摘要：

采用非易失实时时钟芯片DS12C887配合SPA算法,精确获取所在地实时太阳方位;单片机根据光功率评估电池方位驱动后所获电能及驱动耗电,优化驱动的时间间隔;不驱动时,系统掉电。该方案具有断电重启方便,实时跟踪,太阳能电池效能高的优势,具有一定的应用价值。

英文摘要：

This scheme uses a nonvolatile real-time clock chip DS12C887 to precisely obtain real-time position of the sun by adopting SPA algorithm. SCM assesses the obtained electrical energy and driving energy consumption according to the optical power after the direction driving of the solar cell,and then optimizes the intervals of the driving. The system is in a brown-out condition when it is not driving. This scheme has the following advantages： convenient re-initialization after outage,real-time sun-tracking function,efficient solar cells and some application values.