Method and device for determining a variable characteristic of a mass that rests on the seating area of a seat
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Accused Products
Abstract
A method and a device allow to detect and optionally to indicate the improper use of a seat. For this purpose, an estimated value of a variable characteristic of a mass that rests on a seating area of a seat is determined depending on at least one force that acts upon the seating area and that is detected by one or more force sensors. The estimated value is found to be reliable or unreliable depending on the oscillation behavior of the measured signal of the at least one force sensor.
18 Citations
14 Claims
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1-7. -7. (canceled)
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8. A method for determining a variable that is characteristic of a mass resting on a seating area of a seat, the method which comprises:
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detecting at least one force acting on the seating area with at least one force sensor and outputting a measurement signal;
determining an estimated value of the variable that is characteristic of the mass resting on the seating area in dependence on that at least one force acting on the seating area; and
defining the estimated value as being reliable or unreliable depending on an oscillation behavior of the measurement signal of the at least one force sensor. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A device for determining a variable that is characteristic of a mass resting on a seating area of a seat, the device comprising:
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at least one force sensor disposed to measure at least one force acting on the seating area and to output a measurement signal;
means, connected to receive the measurement signal, for determining an estimated value of the variable that is characteristic of the mass resting on the seating area in dependence on the at least one force measured by the force sensor; and
means for determining whether the estimated value is reliable or the estimated value is unreliable in dependence on an oscillation behavior of the measurement signal of the at least one force sensor.
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Specification