Automatic track selection for calibration of pedometer devices
US10001386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2015 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/19
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration track to use for pedometer calibration can be automatically selected based on detecting sustained locomotion activity and an ability to obtain and maintain a reliable location fix over a calibration period. Calibration tracks can be generated, rated for quality, and used to compute calibration parameters to convert accelerometer data to stride length and/or distance traveled. Quality of a calibration can be assessed, and old and new calibration parameter sets can be combined based on quality weights assigned to each. Calibration parameters can be separately maintained for different locomotion activities and/or different on-body locations of the pedometers. Pedometer devices can also cooperatively calibrate each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.