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    • 3. 发明授权
    • Magnetic compass
    • 磁罗盘
    • US07278219B2
    • 2007-10-09
    • US11421900
    • 2006-06-02
    • Yoshinobu HonkuraKatsuhiko TsuchidaHitoshi AoyamaEiji Kako
    • Yoshinobu HonkuraKatsuhiko TsuchidaHitoshi AoyamaEiji Kako
    • G01C17/38
    • G01C17/30G01C17/38
    • A magnetic compass includes: a three-axis magnetic sensor for detecting geomagnetic vector as geomagnetic components in directions of three orthogonal axes x, y, and z; a data-plane calculating unit for calculating a data plane on which output data of the three-axis magnetic sensor are present in a sensor coordinate system of the three axes x, y, and z; a unit vector calculating unit for calculating unit vectors of a horizontal coordinate system of three orthogonal axes X, Y, and Z whose Z-axis runs vertically and X-Y plane defines a horizontal plane relative to the earth; a horizontal coordinate system conversion unit for converting geomagnetic components in the sensor coordinate system detected by the three-axis magnetic sensor into geomagnetic components in the horizontal coordinate system; an azimuth calculating unit for calculating azimuth based on the converted geomagnetic components in the horizontal coordinate system; and a display unit for displaying the calculated azimuth.
    • 磁罗盘包括:三轴磁传感器,用于在三个正交轴x,y和z的方向上检测地磁矢量作为地磁分量; 数据平面计算单元,用于计算在三轴x,y和z的传感器坐标系中存在三轴磁传感器的输出数据的数据平面; 单元矢量计算单元,用于计算Z轴垂直延伸的三个正交轴X,Y和Z的水平坐标系的单位矢量,X-Y平面相对于地球限定水平面; 水平坐标系转换单元,用于将由三轴磁传感器检测的传感器坐标系中的地磁分量转换成水平坐标系中的地磁分量; 方位计算单元,用于基于水平坐标系中的转换的地磁分量来计算方位角; 以及显示单元,用于显示所计算的方位角。
    • 4. 发明申请
    • MAGNETIC COMPASS
    • US20070084070A1
    • 2007-04-19
    • US11421900
    • 2006-06-02
    • Yoshinobu HonkuraKatsuhiko TsuchidaHitoshi AoyamaEiji Kako
    • Yoshinobu HonkuraKatsuhiko TsuchidaHitoshi AoyamaEiji Kako
    • G01C17/38
    • G01C17/30G01C17/38
    • A magnetic compass includes: a three-axis magnetic sensor for detecting geomagnetic vector as geomagnetic components in directions of three orthogonal axes x, y, and z; a data-plane calculating unit for calculating a data plane on which output data of the three-axis magnetic sensor are present in a sensor coordinate system of the three axes x, y, and z; a unit vector calculating unit for calculating unit vectors of a horizontal coordinate system of three orthogonal axes X, Y, and Z whose Z-axis runs vertically and X-Y plane defines a horizontal plane relative to the earth; a horizontal coordinate system conversion unit for converting geomagnetic components in the sensor coordinate system detected by the three-axis magnetic sensor into geomagnetic components in the horizontal coordinate system; an azimuth calculating unit for calculating azimuth based on the converted geomagnetic components in the horizontal coordinate system; and a display unit for displaying the calculated azimuth.
    • 磁罗盘包括:三轴磁传感器,用于在三个正交轴x,y和z的方向上检测地磁矢量作为地磁分量; 数据平面计算单元,用于计算在三轴x,y和z的传感器坐标系中存在三轴磁传感器的输出数据的数据平面; 单元矢量计算单元,用于计算Z轴垂直延伸的三个正交轴X,Y和Z的水平坐标系的单位矢量,X-Y平面相对于地球限定水平面; 水平坐标系转换单元,用于将由三轴磁传感器检测的传感器坐标系中的地磁分量转换成水平坐标系中的地磁分量; 方位计算单元,用于基于水平坐标系中的转换的地磁分量来计算方位角; 以及显示单元,用于显示所计算的方位角。