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1. CN106842094 - Data processing methods and device for magnetometer calibration

Office
China
Application Number 201611267544.X
Application Date 31.12.2016
Publication Number 106842094
Publication Date 13.06.2017
Grant Number 106842094
Grant Date 24.04.2020
Publication Kind B
IPC
G01R 35/00
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
35Testing or calibrating of apparatus covered by the other groups of this subclass
CPC
G01R 35/005
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
35Testing or calibrating of apparatus covered by the preceding groups
005Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Applicants UNION BROTHER MACHINERY CO., LTD.
深圳市优必选科技有限公司
Inventors XIONG YOUJUN
熊友军
HUANG XIANGBIN
黄祥斌
NIE PENG
聂鹏
Agents 广州华进联合专利商标代理有限公司 44224
Title
(EN) Data processing methods and device for magnetometer calibration
(ZH) 磁力计校准的数据处理方法和装置
Abstract
(EN)
The invention relates to data processing methods and device for magnetometer calibration. The methods includes: sampling point and the angle threshold of the sampling point can be obtained; magnetic vectors of present measurements can be obtained according to collecting data measured by magnetometer during calibration; check angle can be obtained according to obtaining the angle between the magnetic vectors of present measurements and the stored magnetic vector after finding the stored magnetic vectors; whether the magnetic vectors of present measurements satisfy the presupposed conditions or not will be checked according to the check angle and the angle threshold; if yes, the magnetic vectors of present measurements will be stored, and the number of the stored magnetic vector whether equals to the sampling point or not will be judged; if the magnetic vectors of present measurements is not contented with the presupposed conditions, or if the number of the stored magnetic vector is not reached to the sampling point, return to continue collecting the magnetic vectors of present measurements according to collecting data measured by magnetometer during calibration. Therefore, data collected by magnetometer can be processed in redundancy to improve the accuracy of the data to be used, thereby improving the accuracy of the calibration.

(ZH)
本发明涉及一种磁力计校准的数据处理方法和装置,该方法包括:获取采样点数以及采样点数对应的夹角阈值;采集校准过程中磁力计测量的数据得到当前测量的磁向量;查找已存储的磁向量,获取当前测量的磁向量与已存储的磁向量之间的夹角得到检测夹角;根据检测夹角和夹角阈值检测当前测量的磁向量是否满足预设条件;若是则存储当前测量的磁向量,并判断已存储的磁向量的数量是否等于采样点数;在当前测量的磁向量不满足预设条件,或已存储的磁向量的数量没有达到采样点数时,返回继续采集校准过程中磁力计测量的数据得到当前测量的磁向量。如此,可对磁力计采集的数据进行冗余处理,提高待使用数据的准确性,从而提高校准的精确度。

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