Multidimensional Fingerprints Method for Indoor Mobile Trajectory Mapping with Geomagnetic Information
Liu Wen-yuan① Zhang Rong-ji① Wang Lin①② Yang Jing① Wang Dan-yang①
①(School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China) ②(School of Computer Engineering, Nanyang Technological University, Singapore 639798)
Abstract：A trajectory mapping method, called MagCom, is proposed based on the geomagnetic perception of indoor mobile devices. MagCom gets the initial position by means of Wi-Fi localization technology, and then calculates the instantaneous position of users continuously leveraging data of the phone's built-in inertial sensors in real time by the floors plan. The magnetic field data of the pedestrian’s location are captured to calibrate the mapping trajectory of mobile devices with the least squares algorithm. Furthermore, the unit vector and the norm vector are applied to reduce outliers in the searching algorithm. The experimental results show that the proposed method can not only improve the trajectory mapping accuracy but reduce the computational complexity than the state of arts.
刘文远, 张荣吉, 王林, 杨静, 王丹阳. 地磁信息辅助的多维指纹室内移动轨迹映射方法[J]. 电子与信息学报, 2013, 35(10): 2397-2402.
Liu Wen-Yuan, Zhang Rong-Ji, Wang Lin, Yang Jing, Wang Dan-Yang. Multidimensional Fingerprints Method for Indoor Mobile Trajectory Mapping with Geomagnetic Information. , 2013, 35(10): 2397-2402.
2013, Vol. 35 
