Guidance system for self-guided vehicle

Details Guidance system for self-guided vehicle Guidance system for self-guided vehicle

1986-06-09

1987-12-22

Mitchell, David M.

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

318587, 340905, B62D 124

Patent

active

047141247

ABSTRACT:
A guidance system for a self-guided vehicle features an electrical conductor and permanent magnets embedded together in an elongate groove formed in a vehicle-supporting surface such as a factory or warehouse floor. The electrical conductor provides steering guidance while the permanent magnets embedded with the conductor provide other information without distorting the magnetic field of the electrical conductor. To prevent such distortion, the permanent magnets are selected for their low magnetic permeability and high electrical resistivity. Magnetic field sensors are provided on the vehicle for determining exact position of the vehicle along its path of travel by sensing deviation, or lack thereof, with respect to such permanent magnets.

REFERENCES:
patent: 3411603 (1968-11-01), Kohls
patent: 3493923 (1970-02-01), Stevens et al.
patent: 3609678 (1971-09-01), Fayling
patent: 3653456 (1972-04-01), Uemura
patent: 3669206 (1972-06-01), Tax et al.
patent: 3768586 (1973-10-01), Thompson
patent: 4247896 (1981-01-01), Schnaibel
patent: 4307329 (1981-12-01), Taylor
patent: 4401181 (1983-08-01), Schwarz
patent: 4456088 (1984-06-01), Nishiki et al.

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