Traffic monitoring device

Details Traffic monitoring device Traffic monitoring device

1988-03-23

1989-09-12

Crosland, Donnie L.

Communications: electrical

Vehicle detectors

Speed and overspeed

340937, 342 66, 342190, 346 33D, 346107VP, 364438, G08G 101, G01D 942

Patent

active

048664383

ABSTRACT:
With a traffic monitoring device for photographic recording of vehicles exceeding a predetermined speed, the speed of the approaching traffic is measured substantially against the travelling direction. The vehicles (12) are photographed frontally when they exceed the predetermined speed. Two speed measurements are effected: A first measuring value is obtained in a relatively short part of the available measuring section (22) on the entrance side and serves to release a camera (18). A second measuring value evaluates all speed measuring values occuring in the measuring section (22), in which the vehicle (12) is detected by the radar beam (20). This second measuring value is recorded.

REFERENCES:
patent: 4053909 (1977-10-01), Shinoda et al.
patent: 4500868 (1985-02-01), Tokitsu et al.
patent: 4717915 (1988-01-01), Goede

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