Position detector for moving vehicle

Details Position detector for moving vehicle Position detector for moving vehicle

1989-09-28

1991-07-09

Chin, Gary

Boots, shoes, and leggings

36442402, 318587, 365375, 180167, 180169, G06F 1550

Patent

active

050311034

ABSTRACT:
A steering system for a moving vehicle wherein light signals are received from light beam source means provided at four reference points apart from the moving vehicle includes a position detector for determining a current position of the moving vehicle based on the received light signals and information on the reference points, the position detector comprising a beam receiver means for receiving the light signals which is mounted on the moving vehicle and rotatable in the horizontal plane, a means for detecting azimuths of the reference points with respect to the advance direction of the moving vehicle on the basis of the received light signals, a means for calculating two differential azimuths between two pairs of reference points disposed at diagonal positions viewed from the moving vehicle, and a calculating means for calculating the position of the moving vehicle on the basis of the azimuths, the differential azimuthes, and the positional information of the reference points.

REFERENCES:
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patent: 4225226 (1980-09-01), Davidson et al.
patent: 4305077 (1981-12-01), Tsumura
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patent: 4626995 (1986-12-01), Lofgren et al.
patent: 4700301 (1987-10-01), Dyke
patent: 4796198 (1989-10-01), Boultinghouse et al.
patent: 4818107 (1989-04-01), Ono et al.
patent: 4936678 (1990-06-01), Gordon et al.
patent: 4964722 (1990-10-01), Schumacher

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