Entrance door
Some entrance doors are closed and opened thousand times a day and there is a way to accumulate energy and use it for outdoor lighting or running advertising message in the evening. The solution is based on human body motion energy and is used for lighting, sound and advertising boards.
Harvesting energy from regular or irregular biomotion is very interesting and promissing topic for the practical application and the further investigations. The energy of motion is transformed to the electricity, enough for local application.
