Bulletin of Surveying and Mapping ›› 2020, Vol. 0 ›› Issue (6): 1-6.doi: 10.13474/j.cnki.11-2246.2020.0170

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An indoor localization method based on adaptive particle filter fusion of geomagnetism,WiFi and PDR

LU Yanling1,2, WEI Junling1, LIU Caiwei1, LI Jingwen1,2, JIANG Jianwu1   

  1. 1. Guilin University of Technology, Guilin 541004, China;
    2. Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin 541004, China
  • Received:2019-09-03 Online:2020-06-25 Published:2020-07-01

Abstract: With the rapid development of national economy, people spend more and more time on indoor activities, indoor space environment is more and more complex, the demand for location and navigation services for indoor environments is also increasing. Due to the stability of geomagnetic signals and the widespread deployment of WiFi technology, the integration of geomagnetic and WiFi positioning has certain advantages. Therefore, this paper deals with the acquired signals adopting from adaptive particle filter model and random sampling consistency algorithm by fusion of geomagnetism,WiFi and pedestrian dead reckoning(PDR) based on the Android smart phone as the receiver. Experiments show that compared with other single-class methods, the indoor localization method of fusion of geomagnetism,WiFi and FDR can reduce the error of indoor localization accuracy to 1.02 m.

Key words: WiFi, geomagnetism, PDR, adaptive particle filter, indoor localization

CLC Number: