公开(公告)号：US20150285659A1

公开(公告)日：2015-10-08

申请号：US14721941

申请日：2015-05-26

Applicant: APPLE INC.

Inventor： Robert C. Curtis ,  Chintan S. Parikh ,  Hung A. Pham ,  Jonathan Beard ,  Gunes Dervisoglu

IPC: G01C25/00 ,  G01C22/00

CPC classification number: G01C22/006 ,  A63B2225/02 ,  G01C25/005 ,  G01S19/19

Abstract: A calibration track to use for pedometer calibration can be automatically selected based on detecting sustained locomotion activity and an ability to obtain and maintain a reliable location fix over a calibration period. Calibration tracks can be generated, rated for quality, and used to compute calibration parameters to convert accelerometer data to stride length and/or distance traveled. Quality of a calibration can be assessed, and old and new calibration parameter sets can be combined based on quality weights assigned to each. Calibration parameters can be separately maintained for different locomotion activities and/or different on-body locations of the pedometers. Pedometer devices can also cooperatively calibrate each other.

Abstract translation: 用于计步器校准的校准轨迹可以基于检测持续运动活动和在校准周期内获得和维持可靠定位的能力而自动选择。 可以生成校准轨迹，以达到质量标准，并用于计算校准参数，以将加速度计数据转换为步幅长度和/或行进距离。 可以评估校准的质量，并且可以基于分配给每个的质量权重来组合旧的和新的校准参数集合。 校准参数可以单独维护，用于不同的运动活动和/或计步器的不同身体位置。 计步器装置也可以协调地相互校准。

公开(公告)号：US10001386B2

公开(公告)日：2018-06-19

申请号：US14721941

申请日：2015-05-26

Applicant: Apple Inc.

Inventor： Robert C. Curtis ,  Chintan S. Parikh ,  Hung A. Pham ,  Jonathan Beard ,  Gunes Dervisoglu

IPC: G01C22/00 ,  G01C25/00 ,  G01S19/19

CPC classification number: G01C22/006 ,  A63B2225/02 ,  G01C25/005 ,  G01S19/19

Abstract: A calibration track to use for pedometer calibration can be automatically selected based on detecting sustained locomotion activity and an ability to obtain and maintain a reliable location fix over a calibration period. Calibration tracks can be generated, rated for quality, and used to compute calibration parameters to convert accelerometer data to stride length and/or distance traveled. Quality of a calibration can be assessed, and old and new calibration parameter sets can be combined based on quality weights assigned to each. Calibration parameters can be separately maintained for different locomotion activities and/or different on-body locations of the pedometers. Pedometer devices can also cooperatively calibrate each other.