Method for Evaluating Reflector Answer Signals of a System for Recognizing the Occupancy of a Seat
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Abstract
A method determines reference values that are used for calculating the damping thickness d in a seat occupancy recognition system. Several reflector answer empty values are initially measured for an unoccupied seat, the empty values being, for example, allocated, respectively to a predetermined seat position of the seat and a specific reception antenna. A reflector answer reference value allocated to a seat reflector or the seat is determined with the aid of a predetermined algorithm and from the measured reflector answer empty values.
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Citations
23 Claims
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1-10. -10. (canceled)
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11. A method for evaluating reflector answer signals of a system for recognizing an occupancy of a seat, the system having at least one base station with a transmitter for sending signals and a receiver for receiving reflector answer signals reflected by at least one reflector allocated to the seat for recognizing the occupancy of the seat, which comprises the steps of:
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performing measurements for determining a number of reflector answer empty values that have been allocated in each instance to a predetermined seat position of the seat of an unoccupied seat;
determining at least one reflector answer reference value allocated to the seat from the reflector answer empty values measured beforehand with an aid of a predetermined algorithm resulting in at least one previously determined reflector answer reference value;
receiving the reflector answer signals, reflected by the at least one reflector, in the receiver of the base station; and
calculating an attenuation thickness from the reflector answer signals received and the at least one previously determined reflector answer reference value for recognizing the occupancy of the seat. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification