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    • 14. 发明申请
    • INERTIAL DEVICE, CONTROL METHOD AND PROGRAM
    • 惯性装置,控制方法和程序
    • US20160370188A1
    • 2016-12-22
    • US15118922
    • 2015-02-17
    • Yusuke MATSUSHITATakeo TSUKAMOTODaisuke HATAFumio YOSHIZAWAKeisuke KONISHI
    • Yusuke MATSUSHITATakeo TSUKAMOTODaisuke HATAFumio YOSHIZAWAKeisuke KONISHI
    • G01C21/20
    • G01C21/206
    • An inertial device for, by using azimuth data indicating a direction of travel calculated based on an acceleration of a moving user, calculating coordinate data indicating a position of the user, includes an azimuth drift calculation unit configured to determine whether a moving direction, which is specified based on the coordinate data calculated while the user makes a predetermined amount of movement, of the predetermined amount of movement of the user satisfies a condition defined in direction adjusting condition information with respect to a predetermined reference direction, and an adjusting unit configured to, in response to the determination by the azimuth drift calculation unit that the predetermined condition is satisfied, adjust the acceleration, which is newly obtained to calculate new coordinate data, based on a difference between the direction of travel indicated by the azimuth data which have already been calculated and the reference direction.
    • 一种惯性装置,通过使用表示基于移动用户的加速度计算出的行驶方向的方位数据,计算表示用户位置的坐标数据,所述惯性装置包括方位漂移计算单元,其被配置为确定是否移动方向 基于在用户进行预定的移动量时计算出的坐标数据,用户的预定移动量满足关于预定参考方向的方向调整条件信息中定义的条件,以及调整单元, 响应于方位漂移计算单元确定满足预定条件,基于已经被方位角数据指示的行进方向之间的差异来调整新获得的用于计算新坐标数据的加速度 计算和参考方向。
    • 16. 发明申请
    • INERTIAL DEVICE, METHOD, AND PROGRAM
    • 惯性装置,方法和程序
    • US20150354967A1
    • 2015-12-10
    • US14763184
    • 2014-01-28
    • Yusuke MATSUSHITA
    • Yusuke MATSUSHITA
    • G01C21/16H04W4/02
    • G01C21/165G01C21/16G01C21/206H04W4/027
    • An inertial device having sensors operable to output accelerations in a horizontal and a vertical direction is disclosed that includes a detection unit configured to detect a turning point in a waveform representing the acceleration in the vertical direction with respect to time and to detect time at the turning point; a calculation unit configured to calculate a velocity in the horizontal direction using the acceleration in the horizontal direction in a predetermined period centering on the time at the turning point; a determination unit configured to determine whether the velocity is less than or equal to a threshold value; and an estimation unit configured to estimate a direction to which a target having the inertial device moves using the velocity in response to a determination by the determination unit that the velocity is less than or equal to the threshold value.
    • 公开了具有可操作以输出水平和垂直方向的加速度的传感器的惯性装置,其包括检测单元,该检测单元被配置为检测表示相对于时间在垂直方向上的加速度的波形的转折点,并且检测在转动时的时间 点; 计算单元,被配置为以在转折点为中心的预定时段内的水平方向的加速度来计算水平方向的速度; 确定单元,被配置为确定所述速度是否小于或等于阈值; 以及估计单元,被配置为响应于所述确定单元确定所述速度小于或等于所述阈值,使用所述速度来估计具有所述惯性装置的目标的方向移动。