| 摘要 |
PURPOSE: A solar tracking device is provided to accurately extract light of the sun with small power and simple control by simplifying the structure and to accurately extract a solar altitude through a relative slope of a gravity direction indicator and the solar tracking device. CONSTITUTION: A first frame(110) supports a solar cell unit. A second frame(130) is hingely coupled with the first frame. A central axis(120) is hingely coupled with the solar cell unit. A first rotation control device(140) restricts the radius of rotation of north and south directions of the first frame. The first rotation control device is included on the second frame and the center axis. A second rotation control device(150) restricts the radius of rotation of east and west directions of the first frame. The second rotation control device is included on the first frame and the second frame. |
