Empty seat detection via spectral analysis
First Claim
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1. A module for determining whether a seat is empty, the module comprising:
- a projection module configured to receive force data that includes a plurality of modes, and to isolate data for one of the modes;
a transform module configured to communicate with the projection module, and to transform the data for one of the modes into a frequency domain, thus producing spectral mode data; and
a spectral analysis module configured to communicate with the transform module, and to classify the spectral mode data.
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Abstract
A module and method for determining whether a seat is empty. In one embodiment, the module includes a projection module that is configured to receive force data that includes a plurality of modes. The projection module is also configured to isolate data for one of the modes. A transform module is configured to communicate with the projection module, and to transform the data for one of the modes into a frequency domain, thus generating spectral mode data. In addition, a spectral analysis module is configured to communicate with the transform module, and to classify the spectral mode data.
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Citations
28 Claims
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1. A module for determining whether a seat is empty, the module comprising:
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a projection module configured to receive force data that includes a plurality of modes, and to isolate data for one of the modes;
a transform module configured to communicate with the projection module, and to transform the data for one of the modes into a frequency domain, thus producing spectral mode data; and
a spectral analysis module configured to communicate with the transform module, and to classify the spectral mode data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for determining a weight of an object on a seat, the system comprising:
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a sensor configured to detect a force exerted by an object;
a first module configured to use spectral analysis to determine an offset of the sensor; and
a second module configured to determine the weight of the object as a function of the force exerted on the seat and the offset of the sensor. - View Dependent Claims (8, 9, 10)
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11. A method for determining whether a seat is empty, the method comprising:
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isolating one of a plurality of modes of force data;
transforming one of the modes of the force data into a frequency domain, thus producing transformed mode data; and
performing spectral analysis on the transformed mode data to classify the transformed mode data. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A computer readable storage medium comprising computer-executable instructions for analyzing a force on a seat by:
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isolating one of a plurality of modes of force data;
transforming one of the modes of the force data into a frequency domain, thus producing transformed mode data; and
performing spectral analysis on the transformed mode data to classify the transformed mode data.
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19. A signal including representations of computer-executable instructions for analyzing a force on a seat by:
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isolating one of a plurality of modes of force data;
transforming one of the modes of the force data into a frequency domain, thus producing transformed mode data;
performing spectral analysis on the transformed mode data to classify the transformed mode data; and
determining the weight of the object as a function of the total force and the force that is not due to the weight of the object.
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20. An device for analyzing a load on a surface, the device comprising:
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a projection module configured to receive force data that includes a plurality of modes and to isolate data for one of the modes;
a transform module configured to communicate with the projection module and to transform the data for one of the modes into a frequency domain, thus producing spectral mode data; and
a spectral analysis module configured to communicate with the transform module and to classify the spectral mode data. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A vehicle having a system to detect the presence and weight of an occupant, the system comprising:
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a projection module configured to receive force data that includes a plurality of modes, and to isolate data for one of the modes;
a transform module in communication with the projection module, and configured to transform the data for one of the modes into a frequency domain, thus producing spectral mode data; and
a spectral analysis module in communication with the transform module, and configured to classify the spectral mode data. - View Dependent Claims (27, 28)
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Specification