发明名称 |
Motion estimation method and system for mobile body |
摘要 |
<p>A motion estimation method and system for a mobile body are provided. The method includes: obtaining magnetic field information from compass information of the mobile body; comparing the magnetic field of the mobile body with a predetermined value and determining whether a position of the mobile body belongs to a specific region according to the comparison result; and estimating a direction of the mobile body by determining whether a compass azimuth angle is used for direction estimation of the mobile body according to the determination result. The system, in which a gyro, odometers, and compasses are installed, comprises: a magnetic field calculator calculating the magnitudes of magnetic fields of the mobile body; a magnetic field comparator obtaining differences between the magnitudes of the magnetic fields and the magnitude of the geomagnetic field and comparing the differences with the first threshold value; a geomagnetic region determiner determining whether a position where the mobile body exists belongs to a region where the geomagnetism works according to the comparison result; and a moving direction estimator estimating a moving direction of the mobile body by determining whether or not to use azimuth angles of the compasses for direction estimation of the mobile body according to the determination result. <IMAGE></p> |
申请公布号 |
EP1530024(A1) |
申请公布日期 |
2005.05.11 |
申请号 |
EP20040256783 |
申请日期 |
2004.11.03 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KWON, WOONG;ROH, KYUNG-SHIK;HAN, WOO-SUP;SHIM, YOUNG-BO;SERGUEI, BOLDYREV |
分类号 |
G01C21/08;G01C17/04;G01C17/38;G01C21/16;(IPC1-7):G01C21/08 |
主分类号 |
G01C21/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|