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公开(公告)号：US20230202486A1
公开(公告)日：2023-06-29
申请号：US18181119
申请日：2023-03-09
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasushi Nakaoka , Fumikazu Otani , Kentaro Yoda
CPC classification number: B60W40/10 , B60W30/02 , G01C9/02 , G01C21/16 , G01P3/44 , G05D1/027 , B60Y2200/50
Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, adjusting error information in a manner of determining whether or not the output of the angular velocity sensor is within an effective range and, when it is determined that the output of the angular velocity sensor is not within the effective range, increasing a posture error component in error information and reducing a correlation component between the posture error component and an error component other than the posture error component in the error information, and correcting the predicted posture information of the object based on the error information.
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公开(公告)号：US09731165B2
公开(公告)日：2017-08-15
申请号：US14854675
申请日：2015-09-15
Applicant: Seiko Epson Corporation
Inventor： Kazuo Nomura , Yasushi Nakaoka
CPC classification number: A63B24/0003 , A63B69/00 , A63B69/0002 , A63B69/3623 , A63B69/3632 , A63B69/38 , A63B2208/0204 , A63B2220/34 , A63B2220/53 , A63B2220/833 , A63B2225/50 , G09B19/0038
Abstract: A swing analyzing apparatus includes at least an angular velocity sensor, an impact detection section, an angular velocity information calculation section, and an impact state judgment section. The impact detection section detects the timing of impact in a swing of a sporting good. The angular velocity information calculation section calculates at least one of the amount of change in angular velocity with respect to a predetermined axis in a predetermined period after the impact timing and the greatest value of the angular velocity based on data outputted form the angular velocity sensor. The impact state judgment section judges the state of impact based on the result calculated by the angular velocity information calculation section.
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公开(公告)号：US09020197B2
公开(公告)日：2015-04-28
申请号：US14024947
申请日：2013-09-12
Applicant: Seiko Epson Corporation
Inventor： Yasushi Nakaoka
Abstract: A sensor unit is installed to a target object and detects a given physical amount. A data acquisition unit acquires output data of the sensor unit in a period including a first period for which a real value of a value of m time integrals of the physical amount is known and a second period that is a target for motion analysis. An error time function estimating unit performs m time integrals of the output data of the sensor unit and estimates a time function of an error of a value of the physical amount detected by the sensor unit with respect to the real value of the value of the physical amount detected by the sensor unit based on a difference between a value of m time integrals of the output data and the real value for the first period.
Abstract translation: 将传感器单元安装到目标对象并检测给定的物理量。 数据获取单元在包括物理量的m次积分的实数值已知的第一周期和作为运动分析的目标的第二周期的周期中获取传感器单元的输出数据。 误差时间函数估计单元执行传感器单元的输出数据的m次积分，并且估计由传感器单元检测到的物理量的值的误差相对于物理值的实际值的时间函数 基于输出数据的m次积分的值和第一期间的实际值之间的差异，由传感器单元检测到的量。
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公开(公告)号：US11971429B2
公开(公告)日：2024-04-30
申请号：US18193292
申请日：2023-03-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasushi Nakaoka
IPC: G01P21/00 , G01P3/00 , B60W40/11 , B60W40/112
CPC classification number: G01P21/00 , G01P3/00 , B60W40/11 , B60W40/112
Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, limiting a bias error in a manner of limiting a bias error component of an angular velocity around a reference vector in error information, and correcting the predicted posture information of the object based on the error information, the reference vector, and an output of a reference observation sensor.
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Patent Agency Ranking
公开(公告)号：US20150283428A1
公开(公告)日：2015-10-08
申请号：US14442825
申请日：2014-02-05
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuhiro Shibuya , Yasushi Nakaoka
CPC classification number: A63B24/0003 , A63B69/3632 , A63B2220/34 , A63B2220/40 , A63B2220/803 , G01P13/00 , G06K9/00342
Abstract: A motion analysis system includes an analysis control device that analyzes a motion of a measurement target using measurement data from a plurality of measurement units including an angular velocity sensor, and the analysis control device receives measurement data based on a first rotational motion around a first rotation axis of the measurement target from the plurality of measurement units when an axis intersecting a perpendicular line with respect to a first plane in a space including the measurement target is set as the first rotation axis, and tunes azimuths on the first plane in the plurality of measurement units using the measurement data based on the first rotational motion.
Abstract translation: 运动分析系统包括分析控制装置，其使用来自包括角速度传感器的多个测量单元的测量数据来分析测量对象的运动，并且分析控制装置基于围绕第一旋转的第一旋转运动接收测量数据 将与包括测量对象的空间相对于第一平面的垂直线相交的轴设定为第一旋转轴，并且在多个测量单元中的第一平面上调整方位角， 使用基于第一旋转运动的测量数据的测量单元。
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公开(公告)号：US20230236220A1
公开(公告)日：2023-07-27
申请号：US18193292
申请日：2023-03-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasushi Nakaoka
CPC classification number: G01P21/00 , G01P3/00 , B60W40/112
Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, limiting a bias error in a manner of limiting a bias error component of an angular velocity around a reference vector in error information, and correcting the predicted posture information of the object based on the error information, the reference vector, and an output of a reference observation sensor.
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公开(公告)号：US11686744B2
公开(公告)日：2023-06-27
申请号：US17749781
申请日：2022-05-20
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasushi Nakaoka
IPC: G01P21/00 , G01P3/00 , B60W40/112 , B60W40/11
CPC classification number: G01P21/00 , G01P3/00 , B60W40/11 , B60W40/112
Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, limiting a bias error in a manner of limiting a bias error component of an angular velocity around a reference vector in error information, and correcting the predicted posture information of the object based on the error information, the reference vector, and an output of a reference observation sensor.
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公开(公告)号：US20220291254A1
公开(公告)日：2022-09-15
申请号：US17749781
申请日：2022-05-20
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasushi Nakaoka
Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, limiting a bias error in a manner of limiting a bias error component of an angular velocity around a reference vector in error information, and correcting the predicted posture information of the object based on the error information, the reference vector, and an output of a reference observation sensor.
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公开(公告)号：US11372020B2
公开(公告)日：2022-06-28
申请号：US16526316
申请日：2019-07-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasushi Nakaoka
IPC: G01P21/00 , G01P3/00 , B60W40/112 , B60W40/11
Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, limiting a bias error in a manner of limiting a bias error component of an angular velocity around a reference vector in error information, and correcting the predicted posture information of the object based on the error information, the reference vector, and an output of a reference observation sensor. A posture estimation device for performing the method includes a posture-change amount calculation unit, a posture information prediction unit, an error information update unit, a bias error limitation unit, and a posture information correction unit.
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