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 |
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代理人 |
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主权项 |
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地址 |
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