System for detecting position of moving vehicle and system for d

Details System for detecting position of moving vehicle and system for d System for detecting position of moving vehicle and system for d

1989-12-22

1991-05-07

Chin, Gary

Boots, shoes, and leggings

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

Patent

active

050142046

ABSTRACT:
A system for detecting reference points to calculate a position of a moving vehicle comprising a means for detecting the azimuth of each light-reflecting means in respect of the moving vehicle on the basis of the reflected light from the light-reflecting means, a means for calculating the current position of the moving vehicle on the basis of the azimuths, a means for calculating the available existence area in which the moving vehicle is predicted to exist at the next azimuth detection time, a means for comparing the position of the moving vehicle calculated on the basis of the detected azimuth at the next azimuth detection time with the available existence area, and a judging means for judging that the detected azimuth is that of the light-reflecting means disposed at the expected reference point if the calculated moving vehicle position is in the available existence area, while the detected azimuth is not that of the light-reflecting means disposed at the expected reference point if the calculated moving vehicle position is not in the available existence area.

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: 4882689 (1989-11-01), Aoki
patent: 4936678 (1990-06-01), Gordon et al.
patent: 4964722 (1990-10-01), Schumacher

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