ZHANG Yurun, WU Fei, MAO Wankui. Fingerprint indoor localization technology using geomagnetic sensor array based on crowd-sourcing[J]. 2019, (12): 36-39.
Aiming at the limitation of application scenarios of active indoor positioning technology and the high cost of layout equipment
a passive and efficient method based on mobile crowd-sourcing is proposed. Firstly
an innovative geomagnetic fingerprint acquisition and matching method based on sensor array is proposed. Solving the problem of technical applicability of large and professional fingerprint collection and update by moving crowdsourcing. Training offline fingerprint database through kernel fuzzy C-means(KFCM) geomagnetic fingerprint clustering algorithm
in the case of 20 replicated experiments
average positioning error of geomagnetic fingerprint positioning is 1. 87 m
90 % positioning error is less than 3 m. Compared with geomagnetic map matching algorithm
positioning precision and performance are greatly improved.