System and method for identifying seat occupancy in a vehicle
2 Assignments
0 Petitions
Accused Products
Abstract
A single high-frequency transmitter emits radiation in a vehicle (1) comprising several seats (2), said high-frequency radiation being reflected depending on whether a seat is occupied, transmitted to a receiver and evaluated with regard to the radiation intensity. In addition, the reliability of the identification is increased, even when the occupant is out of position, by the provision of at least one reflector (9) per seat in or on an allocated seat-belt (6).
33 Citations
35 Claims
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1-15. -15. (canceled)
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16. A method for identifying seat occupancy in a vehicle, the method which comprises:
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emitting a field of high-frequency radiation towards a plurality of seats with a single transmitter;
receiving the high-frequency radiation with a receiver; and
evaluating, in a control unit, the radiation received by the receiver with respect to a radiation intensity and deducing therefrom a seat occupancy at the plurality of seats. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 34)
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31. A system for identifying seat occupancy in a vehicle with a plurality of seats to be monitored, comprising:
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a single transmitter unit for emitting a field of high-frequency radiation towards each of the plurality of seats to be monitored;
a plurality of reflector elements respectively disposed at the seats for reflecting the high-frequency radiation in dependence on an occupancy of the seats;
a receiver unit disposed to receive the high-frequency radiation after reflection at said reflector elements; and
a control unit connected to said transmitter unit and to said receiver unit for activating a generation of the high-frequency wave field and/or for evaluating a radiation intensity received by said receiver unit in dependence on the occupancy of the seats. - View Dependent Claims (32, 33, 35)
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Specification