Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1998-05-20
2000-06-06
Allen, Stephone
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
340435, 340903, G08G 116
Patent
active
060721731
ABSTRACT:
An animal body detecting system adapted to be mounted on a vehicle is capable of simply and accurately detecting whether or not an animal exists, i.e. for detecting a distance to an object in front of the vehicle and for discriminating whether or not the object is an animal at the same time, by utilizing electromagnetic waves. The system is comprised of transceiver devices for emitting a radio wave of a first frequency of 10 GHz and that of a second frequency of 60 GHz whose frequency is higher than the first frequency in the same direction and for receiving reflected waves; and discriminating devices for generating material detection data indicative of whether or not a combination, i.e. a ratio or a product, of receiving levels of the reflected waves of the respective frequencies is a combination of the case when the reflecting object is an animal body. It further comprises a detector for detecting a distance to the reflecting object based on the emitted waves and the received reflected waves. The system utilizes the discrimination result of whether or not the object is an animal and the measured distance thereto when traveling at night, in controlling the distance between vehicles and in controlling a vehicle speed.
REFERENCES:
patent: 5227784 (1993-07-01), Masamori et al.
patent: 5777563 (1998-07-01), Minissale et al.
patent: 5936549 (1999-08-01), Tsuchiya
Nakane Takeshi
Soshi Kunihiko
Aisin Seiki Kabushiki Kaisha
Allen Stephone
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