Communications: electrical – Land vehicle alarms or indicators – Of collision or contact with external object
Patent
1994-06-24
1996-01-16
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
Of collision or contact with external object
340435, 340437, 340596, 340665, 200 6142, 200 6144, B60Q 100
Patent
active
054851408
ABSTRACT:
An improved vehicle obstacle detector and alarm system (10) consisting of an obstacle detector assembly (12) and an electronic control unit (40). The assembly (12) includes an impact probe (14) that is attached through a flexible rod (16) to the front end (18A) of a housing (18). The housing includes at its rear end (18B) an acoustic transducer cavity (18D) into which is inserted a piezoelectric acoustic transducer (26) that is attached to the first end (20A) of a coaxial cable (20). The second end of the cable (20) is attached to an female connector (22) that interfaces with a male connector (41) on the electronics control unit (40). When the impact probe (14) encounters an obstacle, a series of mechanical oscillations are produced that are mechanically transmitted through the flexible rod (16), the housing (18) and ultimately to the piezoelectric acoustic transducer (26). The transducer (26) produces a series of electrical pulses, corresponding to the mechanical oscillations, that are then applied through the cable (20) to the electronics control unit (40). The unit (40) processes the electrical pulses and subsequently provides an alarm signal that energizes an audio and visual alarm that alerts the driver of a motor vehicle when the vehicle has encountered an obstacle.
REFERENCES:
patent: 4855736 (1989-08-01), Hsu
patent: 4870868 (1989-10-01), Gastgeb et al.
patent: 4967180 (1990-10-01), Wang
patent: 5293152 (1994-03-01), Bussin et al.
patent: 5408214 (1995-04-01), Chalmers et al.
Cota Albert O.
Crosland Donnie L.
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