公开(公告)号：US08862418B2

公开(公告)日：2014-10-14

申请号：US12342964

申请日：2008-12-23

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G01C17/00 ,  G01C17/28

CPC分类号： G01C17/28 ,  G01C17/38

摘要： In a magnetic data processing device, a magnetic data input part sequentially receives magnetic data output from a three-dimensional (3D) magnetic sensor. A storage part stores a plurality of the magnetic data as a data set of statistical population. An acceleration data input part receives acceleration data output from a 3D acceleration sensor. A reliability determination part derives a reliability index that is a function of an angular difference between a direction of a line perpendicular to an approximate plane representing a distribution of the data set of the statistical population and a direction of acceleration represented by the acceleration data.

摘要翻译： 在磁数据处理装置中，磁数据输入部顺序地接收从三维（3D）磁传感器输出的磁数据。 存储部存储多个磁数据作为统计总体的数据集。 加速度数据输入部接收从3D加速度传感器输出的加速度数据。 可靠性确定部件导出作为垂直于表示统计总体的数据集的分布的近似平面的线的方向与由加速度数据表示的加速度方向之间的角度差的函数的可靠性指标。

公开(公告)号：US20070086103A1

公开(公告)日：2007-04-19

申请号：US11548022

申请日：2006-10-10

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G11B20/14

CPC分类号： G01C17/38

摘要： A magnetic sensor control device has an input section, a selection section, a calculation section, and a setting section. The input section inputs a plurality of magnetic data each having 3 components sequentially output from a 3-dimensional (3D) magnetic sensor. The selection section selects 4 magnetic data satisfying a predetermined 4-point selection condition from the plurality of the input magnetic data. The calculation section calculates a center point equally distant from 4 points corresponding to the 4 selected magnetic data. The setting section sets 3 components representing the center point as an offset of the magnetic data.

摘要翻译： 磁传感器控制装置具有输入部，选择部，计算部和设定部。 输入部输入从3维（3D）磁传感器依次输出的具有3个分量的多个磁数据。 选择部从多个输入磁数据中选择满足规定的4点选择条件的4个磁数据。 计算部分计算与4个选择的磁数据相对应的4个点相等的中心点。 设置部分将表示中心点的3个部件设置为磁数据的偏移。

公开(公告)号：USRE44582E1

公开(公告)日：2013-11-05

申请号：US13105809

申请日：2011-05-11

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G01C25/00 ,  G01D18/00 ,  G01C17/38 ,  G01R27/28

摘要： In a magnetic data processing device, an input part sequentially inputs magnetic data outputted from a two-dimensional or three-dimensional magnetic sensor. The magnetic data is two-dimensional or three-dimensional vector data that is a linear combination of a set of fundamental vectors. The magnetic data processing device stores a plurality of the inputted magnetic data as a data set of statistical population in order to update an old offset of the magnetic data with a new offset. An offset derivation part derives the new offset based on the old offset and the data set of statistical population under a constraint condition that the new offset be obtained as the sum of the old offset and a correction vector.

公开(公告)号：US20090088975A1

公开(公告)日：2009-04-02

申请号：US12212348

申请日：2008-09-17

申请人： Hideki Sato ,  Ibuki Handa

发明人： Hideki Sato ,  Ibuki Handa

IPC分类号： G01C21/00

CPC分类号： G01C21/28 ,  G01C17/38 ,  G01C21/165 ,  G01S19/49

摘要： In a navigation device, the position PGPS, the running speed V, and the running direction φ are detected based on the Global Positioning System (GPS), while the bearing θ is detected based on geomagnetism. The bearing θ is corrected using the difference δ=θ−φ so as to produce the corrected bearing θc. The present position PMAG is calculated based on the corrected bearing θc as well as the position PGPS and the running speed V which are previously detected. Thus, it is possible to precisely detect the present position PMAG without errors due to deviations between the running direction φ and the bearing θ.

摘要翻译： 在导航装置中，基于全球定位系统（GPS）检测位置PGPS，行驶速度V和行驶方向phi，同时基于地磁检测轴承θ。 使用差值delta =θ-phi校正轴承θ，以便产生经校正的轴承方位。 基于经过校正的轴承转速以及先前检测到的位置PGPS和运行速度V来计算当前位置PMAG。 因此，可以由于运行方向phi和轴承θ之间的偏差而无误地精确地检测当前位置PMAG。

公开(公告)号：US20080266695A1

公开(公告)日：2008-10-30

申请号：US12163683

申请日：2008-06-27

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G11B5/09

CPC分类号： G01C17/38

摘要： A magnetic sensor control device has an input section, a selection section, a calculation section, and a setting section. The input section inputs a plurality of magnetic data each having 3 components sequentially output from a 3-dimensional (3D) magnetic sensor. The selection section selects 4 magnetic data satisfying a predetermined 4-point selection condition from the plurality of the input magnetic data. The calculation section calculates a center point equally distant from 4 points corresponding to the 4 selected magnetic data. The setting section sets 3 components representing the center point as an offset of the magnetic data.

摘要翻译： 磁传感器控制装置具有输入部，选择部，计算部和设定部。 输入部输入从3维（3D）磁传感器依次输出的具有3个分量的多个磁数据。 选择部从多个输入磁数据中选择满足规定的4点选择条件的4个磁数据。 计算部分计算与4个选择的磁数据相对应的4个点相等的中心点。 设置部分将表示中心点的3个部件设置为磁数据的偏移。

公开(公告)号：US09341475B2

公开(公告)日：2016-05-17

申请号：US13605296

申请日：2012-09-06

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G01V3/00 ,  G01C17/38

CPC分类号： G01C17/38

摘要： In a geomagnetism measurement apparatus, a magnetic sensor detects magnetic data, and a storage unit stores the magnetic data sequentially output from the magnetic sensor. An ellipsoid generation unit calculates each ellipsoidal central point of first, second and third ellipsoids each of which has in the vicinity thereof a plurality of the magnetic data stored in the storage unit. An ellipsoidal central point decision unit decides whether or not a distance between respective ellipsoidal central points is equal to or less than a threshold value. A correction value generation unit calculates an ellipsoidal correction matrix for converting coordinates on an ellipsoid into coordinates on a sphere based on a coefficient matrix representing a shape of one of the first, second and third ellipsoids according to the decision result.

摘要翻译： 在地磁测量装置中，磁传感器检测磁数据，存储单元存储从磁传感器依次输出的磁数据。 椭圆体生成单元计算在其附近具有存储在存储单元中的多个磁数据的第一，第二和第三椭圆体的每个椭圆体中心点。 椭圆中心点判定单元判定各椭圆中心点之间的距离是否等于或小于阈值。 校正值生成单元根据决定结果，基于表示第一，第二和第三椭球之一的形状的系数矩阵，计算用于将椭圆体上的坐标转换为球体上的坐标的椭圆校正矩阵。

公开(公告)号：US20090171608A1

公开(公告)日：2009-07-02

申请号：US12342964

申请日：2008-12-23

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G01C17/00 ,  G06F17/18 ,  G01C17/38

CPC分类号： G01C17/28 ,  G01C17/38

摘要： In a magnetic data processing device, a magnetic data input part sequentially receives magnetic data output from a three-dimensional (3D) magnetic sensor. A storage part stores a plurality of the magnetic data as a data set of statistical population. An acceleration data input part receives acceleration data output from a 3D acceleration sensor. A reliability determination part derives a reliability index that is a function of an angular difference between a direction of a line perpendicular to an approximate plane representing a distribution of the data set of the statistical population and a direction of acceleration represented by the acceleration data.

摘要翻译： 在磁数据处理装置中，磁数据输入部顺序地接收从三维（3D）磁传感器输出的磁数据。 存储部存储多个磁数据作为统计总体的数据集。 加速度数据输入部接收从3D加速度传感器输出的加速度数据。 可靠性确定部件导出作为垂直于表示统计总体的数据集的分布的近似平面的线的方向与由加速度数据表示的加速度方向之间的角度差的函数的可靠性指标。

公开(公告)号：US20070213950A1

公开(公告)日：2007-09-13

申请号：US11682379

申请日：2007-03-06

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G06F19/00 ,  G06F17/10

CPC分类号： G01R33/0206 ,  G01C17/38

摘要： In a magnetic data processing device, an input part sequentially inputs magnetic data outputted from a two-dimensional or three-dimensional magnetic sensor. The magnetic data is two-dimensional or three-dimensional vector data that is a linear combination of a set of fundamental vectors. The magnetic data processing device stores a plurality of the inputted magnetic data as a data set of statistical population in order to update an old offset of the magnetic data with a new offset. An offset derivation part derives the new offset based on the old offset and the data set of statistical population under a constraint condition that the new offset be obtained as the sum of the old offset and a correction vector.

摘要翻译： 在磁数据处理装置中，输入部顺序地输入从二维或三维磁传感器输出的磁数据。 磁数据是二维或三维矢量数据，它是一组基本矢量的线性组合。 磁数据处理装置将多个输入的磁数据存储为统计总体的数据集，以便以新的偏移更新磁数据的旧偏移。 偏移导出部分在新的偏移量作为旧偏移和校正矢量的和获得的约束条件下，基于旧的偏移量和统计总体的数据集导出新的偏移量。

公开(公告)号：US08413034B2

公开(公告)日：2013-04-02

申请号：US12342668

申请日：2008-12-23

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G01C17/38 ,  H03M13/00

CPC分类号： G01R33/1207

摘要： In a magnetic data processing device, an input part sequentially receives magnetic data output from a magnetic sensor. A storage part stores a plurality of the magnetic data as a data set of statistical population. An index derivation part derives a distribution index of the data set of the statistical population. A reliability determination part determines whether or not reliability of the data set of the statistical population is acceptable based on the distribution index and a decision criterion. A decision criterion setting part increases strictness of the decision criterion when the reliability determination part determines that the reliability of the data set of the statistical population is acceptable, and decreases the strictness of the decision criterion when the reliability determination part determines that the reliability of the data set of the statistical population is unacceptable.

摘要翻译： 在磁数据处理装置中，输入部顺序地接收从磁传感器输出的磁数据。 存储部存储多个磁数据作为统计总体的数据集。 指数派生部分得出统计人口数据集的分布指数。 可靠性确定部分基于分布索引和决策标准来确定统计总体的数据集的可靠性是否可接受。 当可靠性确定部确定统计群体的数据集的可靠性是可接受的时，判定标准设置部分增加判定标准的严格性，并且当可靠性确定部确定可靠性 统计人口的数据集是不可接受的。

公开(公告)号：US20110218769A1

公开(公告)日：2011-09-08

申请号：US13037282

申请日：2011-02-28

申请人： Ibuki Handa

发明人： Ibuki Handa

IPC分类号： G06F19/00

CPC分类号： G01C17/38 ,  G01R33/025

摘要： In a magnetic data processing device, an input part sequentially receives magnetic data qi output from a magnetic sensor. A storage part sequentially stores the magnetic data received through the input part. An offset derivation part derives an offset according to a probabilistic method using a plurality of the magnetic data stored in the storage part as a statistical population. The offset derivation part assumes that an error Δpi contained in each of the magnetic data qi is a random variable vi following a probability distribution μ, and uses an expected value corresponding to the probability distribution μ for deriving the offset. Specifically, the offset derivation part calculates an index representing variance of distances from the offset to respective ones of true magnetic data that are obtained by subtracting each Δpi from each magnetic data qi of the statistical population, and derives the offset which minimizes the expected value of the calculated index.

摘要翻译： 在磁数据处理装置中，输入部顺序地接收从磁传感器输出的磁数据qi。 存储部分顺序地存储通过输入部分接收的磁数据。 偏移导出部件使用存储在存储部分中的多个磁数据作为统计总体，根据概率法导出偏移。 偏移导出部分假设每个磁数据qi中包含的误差＆Dgr; pi是跟随概率分布μ的随机变量vi，并且使用与概率分布μ相对应的期望值来导出偏移。 具体地，偏移导出部分计算表示通过从统计总体的每个磁数据qi中减去每个＆Dgr; pi获得的偏移到相对于真磁数据的距离的方差的指标，并且导出使预期的最小化的偏移 计算出的指标值。