Distance-velocity predicting system

Details Distance-velocity predicting system Distance-velocity predicting system

1993-11-24

1996-04-02

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

Triangulation ranging to a point with two or more projected...

180169, 342104, 342126, 367 89, 367 99, 356 309, 356 28, G01C 300, G01P 336, B60T 716

Patent

active

055045693

ABSTRACT:
A distance-velocity predicting system has an illuminator for projecting a light beam for searching for an obstacle, and a plurality of position sensors spaced at a distance corresponding to a base line length. A minimum value of a distance component from the base line to an obstacle lying in a direction perpendicular to the base line, which is obtained from the light beam and the position sensors, or a value in the neighborhood of the minimum value, is sampled to obtain time-series data, and a relative velocity component in a direction perpendicular to the base line with respect to the obstacle is obtained in real time by using the time-series data. The relative velocity component perpendicular to the base line is compared with a predetermined threshold value, and when the relative velocity component exceeds the threshold value, a starting signal for life protecting equipment is generated.

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patent: 3781111 (1973-12-01), Fletcher et al.
patent: 4911548 (1990-03-01), Keren-Gill
patent: 5026153 (1991-06-01), Suzuki et al.
patent: 5307136 (1994-04-01), Saneyoshi
patent: 5317517 (1994-05-01), Kawase et al.

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