发明名称 A magnetic sensor module, method of correction therefor, and mobile object including the magnetic sensor module
摘要 A sensor module maintaining high detection accuracy. Correction data of a detected magnetic field is updated only in a case that a fluctuation band acquired from an output signal of an acceleration sensor is less than a threshold value and a difference between an azimuth angle acquired from an output signal of a terrestrial magnetism sensor and an inclination angle acquired from an output signal of acceleration sensor is less than the threshold value. Therefore, the correction data is updated only in a case that a magnetic field at a position of a mobile object is stably detected, and an accuracy of the correction data can be maintained.
申请公布号 EP1909065(A3) 申请公布日期 2010.07.21
申请号 EP20070253939 申请日期 2007.10.04
申请人 RICOH COMPANY, LTD. 发明人 KOU, FUTOYOSHI;FUSE, AKIHIRO
分类号 G01C17/28;G01C17/38 主分类号 G01C17/28
代理机构 代理人
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