Invention Grant
US09273967B2 Bias estimating method, posture estimating method, bias estimating device, and posture estimating device
有权
偏差估计方法，姿势估计方法，偏差估计装置和姿势估计装置
- Patent Title: Bias estimating method, posture estimating method, bias estimating device, and posture estimating device
- Patent Title (中): 偏差估计方法，姿势估计方法，偏差估计装置和姿势估计装置
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Application No.: US13170139Application Date: 2011-06-27
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Publication No.: US09273967B2Publication Date: 2016-03-01
- Inventor: Yimei Ding , Shuji Uchida
- Applicant: Yimei Ding , Shuji Uchida
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP2010-146561 20100628
- Main IPC: G01C21/20
- IPC: G01C21/20 ; G01C21/16 ; G01P21/00
Abstract:
A bias estimating method includes: calculating a virtual posture angle which is a posture angle with a bias which is assumed to be zero by the use of detection values of a plurality of axes in a calibration posture where one axis of a multi-axis acceleration sensor is parallel to the vertical direction; and estimating a bias value contained in the detection value of the axis using the detection value of the axis and the virtual posture angle.
Public/Granted literature
- US20110320164A1 BIAS ESTIMATING METHOD, POSTURE ESTIMATING METHOD, BIAS ESTIMATING DEVICE, AND POSTURE ESTIMATING DEVICE Public/Granted day:2011-12-29
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