Use of Multiple Internal Sensors for Measurement Validation
First Claim
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1. A packaged multi-sensor device for measuring and validating one or more inertial effects, comprising:
- a device package housing;
a plurality of sensors contained within the device package housing for measuring at least first and second measured signals; and
a processing unit contained within the device package housing for generating at least a first estimated value for the first signal based on at least the second measured signal and for comparing the first estimated value for the first signal to the first measured signal in order to validate the first measured signal.
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Abstract
A microcontroller-based method and apparatus are described for measuring motions signals (301) with a plurality of inertial sensors (302-304) contained within a device package housing and validating (420) a first measured motion signal (e.g., ΩX) by generating at least a first estimated value ΩX for the first motion signal (e.g., 419) based on at least a second measured motion signal (e.g., AY) and for comparing the first estimated value for the first motion signal (419) to the first measured motion signal ΩX in order to validate the first measured motion signal ΩX.
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Citations
20 Claims
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1. A packaged multi-sensor device for measuring and validating one or more inertial effects, comprising:
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a device package housing; a plurality of sensors contained within the device package housing for measuring at least first and second measured signals; and a processing unit contained within the device package housing for generating at least a first estimated value for the first signal based on at least the second measured signal and for comparing the first estimated value for the first signal to the first measured signal in order to validate the first measured signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for validating a first measured value associated with a platform without using external reference information, comprising:
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measuring a plurality of values in a plurality of domains, comprising a first measured value in a first domain and a second measured value in a second different domain; calculating a first estimated value in the first domain using at least the second measured value in the second different domain; and comparing the first estimated value to the first measured value to assess a validity measure for the first measured value. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for using a plurality of inertial sensors in a packaged multi-sensor device to measure and validate one or more inertial measurements, comprising:
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reading a plurality of inertial values in a plurality of domains using the plurality of inertial sensors in a packaged multi-sensor device to obtain at least a first measured inertial value in a first domain and one or more additional measured inertial values in one or more different domains; applying a dynamic model of the packaged multi-sensor device and a platform carrying the packaged multi-sensor device to calculate a first estimated inertial value in the first domain using at least the one or more additional measured inertial values in one or more different domains; and comparing the first estimated inertial value to the first measured inertial value to assess a validity measure for the first measured inertial value. - View Dependent Claims (20)
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Specification