Automatic guidance system for moving objects

Details Automatic guidance system for moving objects Automatic guidance system for moving objects

1975-01-30

1977-09-20

Smith, Alfred E.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

180 98, G05B 100

Patent

active

040499618

ABSTRACT:
An automatic system for guiding moving objects is described which cooperates with passive responders situated on or along the road on which the system operates. The part of the system which is located aboard a vehicle comprises one or two optical transmitter/receiver units. The transmitter, comprising an emitter diode or two such diodes energized either continuously or alternately, emits a light signal in the form of a beam of radiation of limited dimensions covering a certain number of responders, which reflect a fraction of the light reaching them. The received signals make it possible to form an electrical signal whose amplitude and sign are a function of the position of the transmitter along an axis transverse to a longitudinal reference axis. This system is applicable to the automatic guidance of moving objects such as road vehicles along routes marked by responders.

REFERENCES:
patent: 2074251 (1937-03-01), Braun
patent: 3000256 (1961-09-01), Hyde
patent: 3320424 (1967-05-01), Olson et al.
patent: 3708668 (1973-01-01), Tilley
patent: 3739179 (1973-06-01), Krekow
patent: 3744586 (1973-07-01), Leinauer

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