发明名称 |
METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR ORIENTING A SMARTPHONE DISPLAY AND ESTIMATING DIRECTION OF TRAVEL OF A PEDESTRIAN |
摘要 |
Method, apparatus, and computer program product embodiments provide position determination. An example method embodiment comprises measuring in a mobile device, acceleration in mutually orthogonal x and y directions in a horizontal plane and in a vertical direction, due to walking motion of a user holding the device; computing a Fourier transform of the measured acceleration in the vertical direction and determining a frequency of acceleration in the vertical direction having a maximum amplitude; computing a Fourier transform of the measured acceleration in the x direction and in the y direction and determining a frequency of acceleration in the x and y directions corresponding to the maximum amplitude frequency of acceleration in the vertical direction; and computing a direction of walking motion of the user, based on the determined frequency of acceleration in the x and y directions corresponding to the maximum amplitude frequency of acceleration in the vertical direction. |
申请公布号 |
WO2014113014(A1) |
申请公布日期 |
2014.07.24 |
申请号 |
WO2013US22075 |
申请日期 |
2013.01.18 |
申请人 |
NOKIA CORPORATION;NOKIA INC |
发明人 |
PARVIAINEN, JUSSI TAPANI;COLLIN, JUSSI TANELI |
分类号 |
G06F3/0346;G01C21/36 |
主分类号 |
G06F3/0346 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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