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    • 35. 发明授权
    • Body movement detector, body movement detection method and body movement detection program
    • 身体运动检测器,身体运动检测方法和身体运动检测程序
    • US07983872B2
    • 2011-07-19
    • US12279557
    • 2007-03-09
    • Kenichi MakinoAkane SanoMotoyuki Takai
    • Kenichi MakinoAkane SanoMotoyuki Takai
    • G01P15/00
    • A61B5/1123A61B5/7214A61B2562/0219G01C22/006
    • A vertical component is extracted from an acceleration vector corresponding to body movement of a user from a three-axis acceleration sensor, and the vertical-component is separated by a high-band/low-band separating unit into a high-band component and a low-band component. Using these components, a peak detection/determination processing unit detects a peak-position candidate of action of the user in the vertical direction, identifies a peak-position candidate on the basis of an energy ratio between the high-band component and the low-band component, performs waveform matching regarding a predetermined range including each peak-position candidate, thereby determining a peak position, and detects body movement on the basis of the peak position, and a step-position analyzing unit detects a body-movement pitch.
    • 从与三轴加速度传感器的用户身体移动相对应的加速度矢量中提取垂直分量,并且将垂直分量由高频带/低频带分离单元分离成高频带分量, 低频分量。 使用这些部件,峰值检测/确定处理单元检测用户在垂直方向的动作的峰值位置候选,基于高频带分量和低频分量之间的能量比来识别峰值位置候选, 对包括每个峰值位置候选的预定范围执行波形匹配,从而确定峰值位置,并且基于峰值位置检测身体移动,并且步进位置分析单元检测身体移动间距。