Boots – shoes – and leggings
Patent
1987-09-11
1989-08-15
Chin, Gary
Boots, shoes, and leggings
358103, 180169, G06F 1550
Patent
active
048581321
ABSTRACT:
A navigation system for guiding an automatically guided vehicle along a variable, predetermined path defined by a plurality of fixed, spaced-apart points. A target is positioned at each spaced-apart point defining the target which includes first and light sources spaced horizontally apart. A light receiving camera and lens is mounted on the vehicle for receiving the first and second horizontally spaced-apart light beams and focusing the beams on a detector. The detector includes an access on which the light beams are focused. A difference in distance from the vertical axis of the detector of the two spaced-apart points represents a deviation from the proper path of the vehicle to the target and an equality of distance of the two spaced-apart points to the vertically extending axis represents the proper path to the target. A vehicle controller controls the vehicle position in relation to the target based on the information received by the camera and lens.
REFERENCES:
patent: 4482960 (1984-11-01), Pryor
patent: 4626995 (1986-12-01), Lofgren et al.
patent: 4679152 (1987-07-01), Perdue
patent: 4700301 (1987-10-01), Dyke
patent: 4703820 (1987-11-01), Reinaud
patent: 4729660 (1988-03-01), Tsumura et al.
patent: 4750123 (1988-06-01), Christian
Adams, III W. Thad
Chin Gary
NDC Technologies, Inc.
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