Method and apparatus for the graphic registration of moving vehi

Details Method and apparatus for the graphic registration of moving vehi Method and apparatus for the graphic registration of moving vehi

1985-11-22

1988-01-05

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

Return signal controls external device

Camera

342106, G01S 1358

Patent

active

047179155

ABSTRACT:
Vehicles are measured and photographed from the direction in which they are travelling by a Doppler radar speed measuring device equipped with a camera. During a measuring stage after the vehicle enters the radar beam, a measured speed value is determined and when this exceeds a specific limit value, the camera is triggered. The Doppler signal for checking the measured speed value is then further evaluated over a verification distance. If the measured speed value is confirmed then it is printed on the photograph at the end of the verification distance, if it has not been confirmed, then a cancellation indicator is printed. The film is then advanced and the detection of the entry of another vehicle is awaited. As a result of this checking of the measured speed value, the measuring reliability when registering oncoming vehicles is substantially increased and overtaking in particular can be detected in the range of the radar beam.

REFERENCES:
patent: 3122740 (1964-02-01), Kruse et al.
patent: 3148015 (1964-09-01), Weaver
patent: 3195126 (1965-07-01), Barker
patent: 3438031 (1969-04-01), Fathauer
patent: 3626413 (1971-12-01), Zachmann
patent: 3754253 (1973-08-01), Balsiger

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