| 摘要 |
A predetermined magnetic field is formed on a predetermined traffic lane, and a vehicle running on that traffic lane detects the position of the own vehicle with a high detecting reliability and a high accuracy, even in the state of receiving the effect of the magnetic disturbance of the earth magnetism, other magnetic bodies or the like. A vehicle position recognizing system includes at least one magnetic marker for forming a magnetic field at predetermined positions on the road surface, at least one magnetic sensor for detecting intensity of the magnetic field formed by this magnetic marker, and an on-vehicle detector for performing operation of the vehicle position on the basis of magnetic field intensity obtained from the magnetic sensor at positions separated forward and backward from the magnetic marker by a predetermined amount, in which the on-vehicle detector has a correcting unit for correcting magnetic field intensity of the magnetic marker 1 on the basis of the magnetic field intensity obtained from the magnetic sensor at positions separated forward and backward from the magnetic marker by a predetermined amount, and a judging unit for judging presence of the magnetic marker, and the correction and judgment are performed on the basis of an average value of the magnetic field intensity obtained from the magnetic sensor.
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