Vehicle position recognition apparatus

Details Vehicle position recognition apparatus Vehicle position recognition apparatus

1997-06-30

1999-03-16

Lee, Benjamin C.

Communications: electrical

Vehicle position indication

340933, 340941, 340935, 340928, 180163, 180169, 701 23, G08G 1123

Patent

active

058835873

ABSTRACT:
A vehicle position recognition apparatus comprising one or a plurality of magnetic field formation means 1-1 installed at predetermined positions on a road for forming a predetermined magnetic field, magnetic field strength detection means 1-4 for detecting the magnetic field formed by the magnetic field formation means 1-1, vehicle position computation suitability judgment means 1-5 for judging whether the magnetic field strength, obtained by the magnetic field detection means 1-4, is suitable or not for computing a position of the vehicle, and vehicle position computation means 1-6 for receiving a result of the judgment of the vehicle position computation suitability judgment means 1-5 and for detecting the position of the vehicle by the magnetic field strength detected by the magnetic field strength detection means 1-4.

REFERENCES:
patent: 4714124 (1987-12-01), Laib
patent: 4847774 (1989-07-01), Tomikawa et al.
patent: 4908557 (1990-03-01), Sudare et al.
patent: 5189612 (1993-02-01), Lemercier et al.
patent: 5191528 (1993-03-01), Yardley et al.
patent: 5708427 (1998-01-01), Bush

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