Method and device for supervising the speed of an object

Details Method and device for supervising the speed of an object Method and device for supervising the speed of an object

1978-04-14

1980-07-22

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

340 38P, 358107, H04N 718

Patent

active

042142652

ABSTRACT:
A system for supervising the speed of an object, such as a vehicle, relative to a reference point, wherein a TV-camera is utilized. The TV-camera is mounted at the reference point and directed at a certain, preferably right angle to the direction of movement of the object, so that the field of view of the TV-camera includes a measuring distance. The video output signal from the TV-camera is fed to a black level sensor which in turn activates a pulse generator while the image of the object is passing between two given marking lines on the TV-image corresponding to the measuring distance. The pulses thus generated are counted, and the counted number of pulses constitutes a measure of the speed of the object (i.e., inverse proportionality).

REFERENCES:
patent: 3532042 (1970-10-01), Pedersen
patent: 3685012 (1972-08-01), Case
patent: 3890462 (1975-06-01), Limb
patent: 3890463 (1975-06-01), Ikegami

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