Abstract
Volcano observation rover needs to be able to explore and observation at the place which man cannot come into for a long period of time. Therefore, the Volcano observation rover must be carried out in the independent energy supply. Study of Volcano observation rover, observation of the volcano have been made in the world. However, there is no robot has been active robot is a long period of time to replenish energy at independence. In this research, We propose a power system that can be long-term observation. In order to supply electric source and wind generation by itself, the rover carried the solar panel. The power system is equipped with four modes. By selectively using these modes of power availability, allowing the longterm observation. It can carry out experiment for three consecutive days. In the developed system, perform the experiment.