Sensor fusion for activity identification
First Claim
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1. An mobile device to monitor human activity using multiple sensors comprising:
- a plurality of sensors;
a dedicated processing unit receiving data from the plurality of sensors, the dedicated processing unit to process sensor data, the dedicated processing unit further comprising a calculating logic to compare a first estimation of a user activity statistic based on data from a first sensor with a second estimation of a user activity statistic based on data from a second sensor, to calculate a first accuracy of the first estimation and a second accuracy of the second estimation, and to calculate the user activity statistic based on the first estimation and the second estimation, wherein the calculated user activity statistic is a result of a weighted combination of the first estimation and the second estimation based on the first accuracy and the second accuracy; and
a central processing unit to perform functions in the mobile device.
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Abstract
A mobile device monitors accelerations using one or more inertial sensors. A user activity is identified based on the accelerations. A first estimation is made of a user activity statistic associated with the user activity based on the accelerations. Location information is obtained by one or more location based sensors. A second estimation is made of the user activity statistic based on the location information. The user activity statistic is calculated based on the first estimation and the second estimation.
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Citations
20 Claims
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1. An mobile device to monitor human activity using multiple sensors comprising:
a plurality of sensors; a dedicated processing unit receiving data from the plurality of sensors, the dedicated processing unit to process sensor data, the dedicated processing unit further comprising a calculating logic to compare a first estimation of a user activity statistic based on data from a first sensor with a second estimation of a user activity statistic based on data from a second sensor, to calculate a first accuracy of the first estimation and a second accuracy of the second estimation, and to calculate the user activity statistic based on the first estimation and the second estimation, wherein the calculated user activity statistic is a result of a weighted combination of the first estimation and the second estimation based on the first accuracy and the second accuracy; and a central processing unit to perform functions in the mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system to monitor human activity using multiple sensors comprising:
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a mobile device comprising; a plurality of sensors; a dedicated processing unit receiving data from the plurality of sensors, the dedicated processing unit to process sensor data, the dedicated processing unit further comprising a calculating logic to compare a first estimation of a user activity statistic based on data from a first sensor with a second estimation of a user activity statistic based on data from a second sensor, and calculating the user activity statistic based on the first estimation and the second estimation, wherein the calculated user activity statistic is a result of a weighted combination of the first estimation and the second estimation; and a central processing unit to perform functions in the mobile device; and a server coupled to the mobile device via a network, the server providing a remote calculating logic to perform a portion of the calculations for the calculating logic in the mobile device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A mobile device to monitor human activity using multiple sensors comprising:
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a plurality of sensors; a processor to receive data from the plurality of sensors, and to calculate a first estimate having a first calculated accuracy and a second estimate having a second calculated accuracy for a user activity statistic; the processor to calculate a composite user activity statistic based on a weighted average of the first and the second estimate, the weighting based on the first and the second calculated accuracy. - View Dependent Claims (18, 19, 20)
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Specification