Communications: electrical – Vehicle detectors – With camera
Patent
1989-04-27
1991-11-19
Crosland, Donnie L.
Communications: electrical
Vehicle detectors
With camera
340936, 340942, 364438, 358113, G08G 1017, G08G 1054
Patent
active
050669508
ABSTRACT:
A traffic monitoring system comprising apparatus for establishing a pair of precisely spaced radiation beams in association with a thoroughfare, whereby passage of a vehicle along the thoroughfare interrupts the radiation beams, apparatus for sending interruption of the radiation beams and providing output indications of vehicle speed and separation between adjacent vehicles (headway) and apparatus for photographing vehicles fulfilling predetermined criteria including photography trigger apparatus which is responsive to the sensed vehicle speed of the vehicle being photographed for providing a consistently positioned photographic record of the vehicle, irrespective of vehicle speed.
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Bodenheimr Joseph S.
David Gerald B.
Schweitzer Naftali
Crosland Donnie L.
Driver Safety Systems Ltd.
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