测绘通报 ›› 2019, Vol. 0 ›› Issue (2): 17-21.doi: 10.13474/j.cnki.11-2246.2019.0036

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Indoor positioning system based on trilateration and PDR fusion

CHEN Peng1, LIAO Ming2, LIU Wuping3, GUO Wei3, SONG Yang1   

  1. 1. Guangzhou Urban Planning Design & Survey Research Institute, Guangzhou 510060, China;
    2. Jiangxi Provincal Geomatics Center, Nanchang 330209, China;
    3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
  • Received:2018-04-16 Online:2019-02-25 Published:2019-03-05

Abstract:

The indoor positioning has been improved significantly with the development of wireless indoor positioning technology. However, it is difficult to obtain continuous positions only using a wireless positioning method, which makes the positioning point jitter without good user experience. Practical applications require a variety of technical tools. Different hardware platforms will affect the specific combination. In this paper, we propose a method fusing the trilateration and PDR, and using map matching to correct results in order to get continuous and stable positioning results based on the WeChat platform. Then, we use indoor map visualization technology to visualize the components of the indoor positioning system. Finally, an indoor positioning system based on the WeChat platform is developed. The system has already been applied in the actual scene and has good positioning results.

Key words: wireless positioning, PDR, fusion solution, map matching, indoor positioning and navigation

CLC Number: