Position detector for moving vehicle

Details Position detector for moving vehicle Position detector for moving vehicle

Filed on

1989-12-22

Date issued

1991-05-28

Examiner

Chin, Gary

Patent Class

Boots, shoes, and leggings

Other Related Categories

36442402, 318587, 356375, 180167, 180169, G06F 1550

Type

Patent

Status

active

Patent number

050199900

Description

ABSTRACT:
A position detecting system for a moving vehicle wherein a position of the moving vehicle is detected on the basis of received beam signals from light-emitting means disposed at at least four reference points and positional informations of the respective reference points, comprising a means for detecting the azimuth of each light-emitting means with respect to the moving vehicle, a means for predicting the direction of the light-emitting means to be detected in the next scanning on the basis of the azimuths detected, a means for calculating the position of the moving vehicle on the basis of the detected azimuths if the detected position of the light-emitting means is in the predicted direction, and a means for calculating the azimuth of the undetected light-emitting means on the basis of the positions of the remaining light-emitting means if the detected position of the light-emitting means is out of the predicted direction, and for predicting the azimuth at which the undetected light-emitting means is to be detected in the next scanning.

REFERENCES:
patent: 4225226 (1980-09-01), Davidson et al.
patent: 4309758 (1982-01-01), Halsall et al.
patent: 4626995 (1986-12-01), Lofgren et al.
patent: 4700301 (1987-10-01), Dyke
patent: 4796198 (1989-01-01), 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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