| 摘要 |
A solar-powered pumping device comprising: a solar power converter for generating power from sunlight; a pump driven by power from said solar power converter; an actuator for controlling the orientation of said solar power converter; and a controller for controlling said actuator to orient said solar power converter for optimum generation of power, said controller comprising a receiver for receiving broadcast time data, and an ephemerides calculator for calculating the position of the sun on the basis of the received time data. <IMAGE> |
