Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1989-07-28
1990-09-18
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
180167, G01V 904
Patent
active
049580680
ABSTRACT:
An obstacle detection and position sensing system for autonomous mobile vehicles is described. The system includes two spaced-apart contact and position sensitive bumpers disposed across the frontal cross section of the vehicle. Light beams are directed by transceivers and retroreflectors across the frontal cross section area between the two bumpers, forming a light curtain. The combination of the bumpers and light curtain provides complete frontal coverage of the potential collision cross-section of a fairly large vehicle, without obstructing the field of view of sonar, optical, or other forward-looking sensors.
REFERENCES:
patent: 3973685 (1976-08-01), Loomer
patent: 4137984 (1979-02-01), Jennings
patent: 4228886 (1980-10-01), Moran
patent: 4295740 (1981-10-01), Sturges, Jr.
patent: 4309696 (1982-01-01), Nagai et al.
patent: 4423998 (1984-01-01), Inaba et al.
patent: 4489578 (1984-12-01), Nagai et al.
patent: 4620285 (1986-10-01), Perdue
patent: 4628496 (1986-12-01), Lee
patent: 4638445 (1987-01-01), Mattaboni
patent: 4651074 (1987-03-01), Wise
patent: 4652205 (1987-03-01), Ross et al.
patent: 4660703 (1987-04-01), Filcich et al.
patent: 4668859 (1987-05-01), Winterer
patent: 4695156 (1987-09-01), Taft
patent: 4704603 (1987-11-01), Edwards et al.
patent: 4829174 (1989-05-01), Booth et al.
Bancroft Allen J.
Pong William
Stacy Robert G.
Nelms David C.
Transitions Research Corporation
LandOfFree
Dual bumper-light curtain obstacle detection sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual bumper-light curtain obstacle detection sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual bumper-light curtain obstacle detection sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1573709