发明名称 |
ESTIMATING VELOCITY IN A HORIZONTAL OR VERTICAL DIRECTION FROM ACCELERATION MEASUREMENTS |
摘要 |
<p>There is provided a method of determining an estimate of the velocity of a device in a horizontal or vertical direction, the method comprising obtaining measurements of the acceleration acting on the device in three dimensions; using a first filter and the obtained measurements to estimate acceleration due to gravity; estimating the acceleration acting in a horizontal or vertical direction due to motion of the device using the estimated acceleration due to gravity; integrating the estimate of the acceleration acting in said direction due to motion of the device to give an estimate of velocity in said direction; and using a second filter to remove offset and/or drift from the velocity to give a filtered velocity; wherein at least one of the first filter and second filter is a non-linear filter. An apparatus configured to operate according to the above method is also provided.</p> |
申请公布号 |
WO2013024461(A1) |
申请公布日期 |
2013.02.21 |
申请号 |
WO2012IB54192 |
申请日期 |
2012.08.17 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;TEN KATE, WARNER RUDOLPH THEOPHILE |
发明人 |
TEN KATE, WARNER RUDOLPH THEOPHILE |
分类号 |
G01P7/00;A61B5/11;G08B21/04 |
主分类号 |
G01P7/00 |
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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