Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1986-06-20
1987-09-08
Tubbesing, T. H.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
342175, G01S 1393
Patent
active
046927646
ABSTRACT:
An automatic range finder and remote controlled braking system is provided. When mounted to a vehicle, this system senses the distance between the equipped vehicle and any other vehicle or object in front of it and sets off a warning alarm when the separating distance is less than some preset value. As the distance continues to close, when the distance closes to some preset braking distance, a braking alarm is activated, and controlled breaking, proportional to the rate of change of distance with respect to time commences. The actual distance is always displayed. Additional braking is accomplished by applying increased breaking force to the conventional brake pedal while a panic button can be used to disable the automatic braking entirely. The beamwidth of the corner reflector type antenna is controlled for calibration purposes by adjusting the lateral placement of the radiating dipole using a motor and worm drive system.
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G. Ross, "Narrowing the Effective Beamwidth of a Baseband Radar for Auto Braking Application"; 1978 Intl. Symposium Digest on Antennas and Propagation, pp. 296-301.
J. Shefer et al., "Clutter-Free Radar for Cars"; Wireless World, (vol. 80, No. 1461, pp. 117-122; 5/74).
Gregory Bernarr Earl
Miller Richard L.
Tubbesing T. H.
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