Distance measuring apparatus

Details Distance measuring apparatus Distance measuring apparatus

1998-11-09

2000-08-01

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

180169, 3561411, B60T 716, B62D 124, G01C 308

Patent

active

060974761

ABSTRACT:
Distance sensors are mounted on both ends of a vehicle and have light transmitting and receiving sections. A distance to an object is independently measured by alternately transmitting "one-side-only enlarged light beams" at a time interval and receiving corresponding reflected beams from the object. In an overlapped area of the "one-side-only enlarged light beams", the distance from the vehicle to the object, as well as the azimuth of the object, is measured by a triangulation distance measurement using an interval between the distance sensors as a baseline. The lengths of the "one-side-only enlarged light beams" in the running direction of the vehicle are about 50m and a width vertical to the running direction of the overlapped area is about 2m slightly greater than a width of the vehicle.

REFERENCES:
patent: 3864678 (1975-02-01), Yamanaka et al.
patent: 3892483 (1975-07-01), Saufferer
patent: 4681431 (1987-07-01), Sims et al.
patent: 5283622 (1994-02-01), Ueno et al.
patent: 5313262 (1994-05-01), Leonard
patent: 5341346 (1994-08-01), Youlton
patent: 5831717 (1998-11-01), Ikebuchi
patent: 5877849 (1999-03-01), Ramer et al.

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