| 摘要 |
<p>PROBLEM TO BE SOLVED: To drive a solar panel unit as early as possible at a time of the next sunrise and direct a light receiving plane toward an optimum direction at the time of the sunrise in the solar panel unit that uses part of power generated at the solar panel as driving power.SOLUTION: A position changing part (74) is provided at a microcomputer (70) of a controller (80), and before sunset, the position changing part (74) controls an electromagnetic valve (47) of an actuator unit (40) in place of a tracking control part (73) of the microcomputer (70) and direct a solar panel (20) from westward to eastward.</p> |
