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    • 10. 发明申请
    • Geomagnetic sensor for computing azimuth and method thereof
    • 用于计算方位的地磁传感器及其方法
    • US20070119061A1
    • 2007-05-31
    • US11481069
    • 2006-07-06
    • Woo-Jong LeeSang-on Choi
    • Woo-Jong LeeSang-on Choi
    • G01C17/38
    • G01C17/38
    • A geomagnetic sensor for computing an azimuth and a method thereof. The geomagnetic sensor includes a geomagnetic sensor module, including X, Y and Z axis fluxgates orthogonal to one another, for performing normalization for mapping output values of the X, Y and Z axis fluxgates onto a previously set normalization range using previously set normalization factors, an operation module for performing operation of new normalization factors based on a plurality of normalization values output from the geomagnetic sensor module when the geomagnetic sensor is swung within a previously set range, a tilt sensor module for computing a pitch angle and a roll angle, and a control module for providing the new normalization factors to the geomagnetic sensor module to allow the geomagnetic sensor module to perform renormalization and computing an azimuth using the output values renormalized by the geomagnetic sensor module and the pitch and roll angles computed during the renormalization. Therefore, it is possible to easily compute the normalization factors used for azimuth compensation.
    • 一种用于计算方位角的地磁传感器及其方法。 地磁传感器包括地磁传感器模块,其包括彼此正交的X,Y和Z轴磁通门,用于执行归一化,以使用先前设定的归一化因子将X,Y和Z轴磁通量的输出值映射到预先设定的归一化范围, 操作模块,用于当地磁传感器在预先设定的范围内摆动时,基于从地磁传感器模块输出的多个归一化值执行新的归一化因子的操作,用于计算俯仰角和倾斜角的倾斜传感器模块,以及 控制模块,用于向地磁传感器模块提供新的归一化因子,以允许地磁传感器模块使用由地磁传感器模块重新归一化的输出值和在重整化期间计算的俯仰角和滚动角度来执行重新归一化和计算方位角。 因此,可以容易地计算用于方位补偿的归一化因子。