Optical navigation system

Optics: measuring and testing – Angle measuring or angular axial alignment – Apex of angle at observing or detecting station

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250237R, 356 1, 356152, G01B 1126, G01B 300

Patent

active

047861673

ABSTRACT:
A navigation device for wheeled vehicles using an optical locating system to determine the vehicle's position with respect to a set of coded, and therefore separately identifiable, fixed beacons. This optically obtained navigational information is used in conjunction with information from revolution counters on the vehicle's wheels to permit operation when one or no beacons are visible, and to refine the accuracy of the position determination as derived from the optical system alone.

REFERENCES:
patent: 3951550 (1976-04-01), Slick
patent: 4112294 (1978-09-01), Pressiat
patent: 4225781 (1980-09-01), Hammons
patent: 4286760 (1981-09-01), Coudere et al.
patent: 4311385 (1982-01-01), Keene
patent: 4314761 (1982-02-01), Renymond et al.
patent: 4328545 (1982-05-01), Halsall et al.
patent: 4475814 (1984-10-01), Marche
patent: 4664518 (1987-05-01), Pfund
ITT, IC-Kit for Infrared Remote Control, Apr. 1979, Lawrence, MA.

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