TY - JOUR
T1 - Wireless indoor positioning with vertically uniform alternating magnetic fields
AU - Qi, Xiaokang
AU - Chen, Lei
AU - An, Kang
AU - Wang, Jun
AU - Ma, Chao
AU - Zhang, Bin
AU - Xu, Kuiwen
AU - Li, Huan
AU - Ye, Dexin
AU - Huangfu, Jiangtao
AU - Li, Changzhi
AU - Ran, Lixin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11
Y1 - 2018/11
N2 - With the growing demands for localizing humans and mobile service robots, wireless indoor positioning has become a hot topic. Due to inevitable multipath scatterings in indoor spaces, technical challenges still exist. In this paper, we propose a new solution based on vertically uniform alternating magnetic fields. Such fields can be established by long coils driven by watt-level alternating currents with hertz-scale frequencies. Detected by commercial magnetic sensors, the coexisting dual-frequency magnetic fields are able to distribute in indoor spaces with tens of square meters. With 104-km-scale wavelengths, indoor obstacles can be considered as negligible Rayleigh scatters, and thus, this method is robust in complex indoor environments. Insensitive to height, the vertically polarized magnetic fields can be conveniently detected by existing smartphones, implying a human-oriented WIP based on smartphones.
AB - With the growing demands for localizing humans and mobile service robots, wireless indoor positioning has become a hot topic. Due to inevitable multipath scatterings in indoor spaces, technical challenges still exist. In this paper, we propose a new solution based on vertically uniform alternating magnetic fields. Such fields can be established by long coils driven by watt-level alternating currents with hertz-scale frequencies. Detected by commercial magnetic sensors, the coexisting dual-frequency magnetic fields are able to distribute in indoor spaces with tens of square meters. With 104-km-scale wavelengths, indoor obstacles can be considered as negligible Rayleigh scatters, and thus, this method is robust in complex indoor environments. Insensitive to height, the vertically polarized magnetic fields can be conveniently detected by existing smartphones, implying a human-oriented WIP based on smartphones.
KW - Alternating magnetic fields
KW - magnetic sensors
KW - vertical fields
KW - wireless indoor positioning (WIP)
UR - http://www.scopus.com/inward/record.url?scp=85051678447&partnerID=8YFLogxK
U2 - 10.1109/TIM.2018.2861118
DO - 10.1109/TIM.2018.2861118
M3 - Article
AN - SCOPUS:85051678447
SN - 0018-9456
VL - 67
SP - 2733
EP - 2735
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
IS - 11
M1 - 8438333
ER -