发明名称 |
MULTI-POSTURE STRIDE LENGTH CALIBRATION SYSTEM AND METHOD FOR INDOOR POSITIONING |
摘要 |
A multi-posture stride length calibration system for indoor positioning includes: at least an inertial measurement unit, configured to sense at least a signal; a signal preprocessing unit, connected to the inertial measurement unit to process sensed signal; a multi-posture determination unit, configured to determine at least a posture based on processed signal; a step-computing decision unit, configured to compute a number of steps and a step frequency based on processed signal; a map feature calibration unit, configured to receive the number of steps, step frequency and posture to determined a stride length and decide whether the stride length matching a criterion; a step-computing threshold adjustment unit, configured to adjust a step-computing threshold if stride length not matching the criterion; and a stride length regression unit, configured to update a stride length regression curve for posture based on step frequency and stride length if stride length matching the criterion. |
申请公布号 |
US2014172361(A1) |
申请公布日期 |
2014.06.19 |
申请号 |
US201313924738 |
申请日期 |
2013.06.24 |
申请人 |
Industrial Technology Research Institute |
发明人 |
Chiang Jen-Chieh;Feng Kun-Chi;He Xu-Peng;Kuo Lun-Chia |
分类号 |
G01C22/00 |
主分类号 |
G01C22/00 |
代理机构 |
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代理人 |
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主权项 |
1. A multi-posture stride length calibration system for indoor positioning, comprising:
at least an inertial measurement unit, configured to sense at least a signal of a mobile device; and a multi-posture determination unit, configured to receive the sensed signal and determine at least a posture of the mobile device based on the signal.
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地址 |
Hsinchu TW |