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  • M. Wada
  • 2005
In this paper, a new type of omnidirectional mobile platform with four-wheel drive (4WD) mechanism is presented. The mobile platform includes a pair of normal wheels on the rear side of the platform and a pair of omni-wheels on the front side. The normal wheel in rear and the omni-wheel in front, mounted on the same side of the platform, are interconnected(More)
  • M. Wada
  • 2005
This paper presents a new type of omnidirectional mobile base with four-wheel drive (4WD) mechanism for improving traction on the slippery surface and enhancing mobility on rough terrain of omnidirectional electric wheelchairs. The mobile base includes a pair of normal wheels on the rear side of the base and a pair of omni-wheels on the front side. The(More)
  • M. Wada
  • 2008
This paper presents a development of a 4WD omnidirectional wheelchair with a chair tilting system for climbing single high step. For enhancing the step climb capability of standard wheelchairs, a Four-wheel-drive(4WD) mechanism is introduced. The mobile platform equips four wheels. A pair of front-rear wheels which mounted on the same side of the mechanism,(More)
In this paper, we propose a new light painting method using a Ultra-Violet (UV) LED and a string that was painted by fluorescent ink. An ordinary light painting takes a photograph of the path of lights by moving light sources such as LEDs. This system is producing works by taking a string coated with a fluorescent paint glowing with UV-LED. In our system,(More)
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