System for providing a warning when vehicles approach a common c

Details System for providing a warning when vehicles approach a common c System for providing a warning when vehicles approach a common c

1988-07-01

1990-06-05

Orsino, Joseph A.

Communications: electrical

External condition vehicle-mounted indicator or alarm

Transmitter in another vehicle

455 99, 2464731, G08G 116

Patent

active

049317938

ABSTRACT:
A system for providing a warning when at least two vehicles, first and second vehicles, are near a common collision point. The system includes closed loop verification between a first vehicle and a common collision point. The system includes a first transmitter for transmitting a first radio frequency signal, a first receiver for receiving the first radio frequency signal at the common collision point, a second transmitter for transmitting a second radio frequency signal from the common collision point to the first vehicle and to any approaching vehicles, a second receiver in a vehicle which can receive the second radio frequency signal and indicate that the first and second vehicles are near a common collision point, and a third receiver in the first vehicle for receiving the second radio frequency signal and for providing an indication that a closed loop between the first vehicle and the common collision point is functioning properly.

REFERENCES:
patent: 3365572 (1968-01-01), Strauss
patent: 3412378 (1968-11-01), Thomas
patent: 3854119 (1974-12-01), Friedman et al.
patent: 4238778 (1980-12-01), Ohsumi
Feasibility Study of In-Vehicle Warning Systems, D. D. Peterson, et al., May, 1975, Tracor Jitco, Inc.; Department of Transportation, HS-801 569, Contract No. DOT-HS-256-3-752.

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