| 摘要 |
PURPOSE:To file up the output shortage of a solar battery panel due to successive insolationless days or the adhesion of dust, and remove the overcharge of a storage battery, and enable the preserve the scenery of the surrounding environment without arranging furnishings around a pole. CONSTITUTION:A solar battery panel 9 with a size capable of being attached to the pole 11 erected at a road side where the traffic is busy is mounted on the pole 11, and a piezoelectric element array 1, which converts the vibration energy of a road due to a passing car or vehicle into electric energy, is buried in the ground, and the electric energy is collected from the piezoelectric element array 1 and is accumulated in a storage battery 8 regardless it is insolationless day or night. |
