Magnetic marker system
AssigneeAichi Steel Corporation
InventorsMichiharu YAMAMOTO, Tomohiko NAGAO, Hitoshi AOYAMA
Life of this patent
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Abstract
In a magnetic marker system for achieving assists for vehicle driving operation by a driver or vehicle control for automatic driving independent from driver's operation, magnetic markers are laid so that orientations of magnetic poles are alternately reversed along a road and arranged so that magnetic fields of magnetic markers adjacent to each other as being spaced with a gap along the road interfere with each other, thereby improving reliability of detecting a magnetic marker on a vehicle side while reducing magnetic force of the magnetic marker itself.
Claims20
A magnetic marker system for achieving assists for vehicle driving operation by a driver or vehicle control for automatic driving independent from driver's operation, the system comprising magnetic markers laid along a road so as to be detectable by a magnetic sensor on a vehicle side, wherein
- the magnetic markers are laid so that orientations of magnetic poles are alternately reversed along the road and arranged so that a magnetic field acting on the magnetic sensor is intensified more than a case of a single magnetic marker by interference between magnetic fields of the magnetic markers adjacent to each other as being spaced with a gap along the road.
Dependencies are inferred from the claim text.