System for detecting the position of a moving body

Details System for detecting the position of a moving body System for detecting the position of a moving body

1992-04-06

1993-11-02

Hellner, Mark

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

356140, 356152, 356 1, G01B 1126

Patent

active

052588220

ABSTRACT:
A position detection system for a moving body comprising means for rotatively scanning the light beam projected from a light beam generator mounted on the moving body in a substantially horizontal plane, and vibrating to vertically vibrate the rotatively scanned light beam in a cycle two times or more longer than the cycle of the rotative scan. The light beam projected from the moving body and reflected by the retroreflector means provided at at least three positions spaced apart from the moving body is received by a light beam receiver on the moving body, and the position of the moving body is detected on the basis of the directions of the light reception and the known positional information on the retroreflector means.

REFERENCES:
patent: 4010361 (1977-03-01), Latterman et al.
patent: 4039246 (1977-08-01), Voigt
patent: 4795878 (1989-01-01), Babitsky et al.
patent: 5008557 (1991-04-01), Noji et al.
patent: 5100229 (1992-03-01), Lundberg et al.
patent: 5137354 (1992-08-01), de Vos et al.

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