Experimental Evaluation of the Planar Assumption in Magnetic Positioning

David Hanley, Xiangyuan Zhang, Augusto S. Dantas de Oliveira, Daniel Steinberg, Timothy Bretl

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

In this paper, we confirm the hypothesis that the magnetic field inside a building can vary significantly as a function of height. We collected data with twenty magnetometers spaced evenly from knee height to head height and mounted to a ground robot, which we drove through two different buildings on the campus of the University of Illinois at Urbana-Champaign. We applied Gaussian process regression to build a map of the magnetic field at each height. We compared these maps and saw pairwise differences of more than 1 μT in up to 20% of each test environment, a threshold that we argue would prevent meeting the requirements of common indoor positioning applications. These results call into question the planar assumption that is commonly made when deriving methods of indoor positioning that are based on the use of magnetic fields.
Original languageEnglish
Title of host publication2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN)
PublisherIEEE
Pages1-8
Number of pages8
ISBN (Electronic)978-1-5386-5635-8
ISBN (Print)978-1-5386-5636-5
DOIs
Publication statusPublished - 24 Sept 2018
Event9th International Conference on Indoor Positioning and Indoor Navigation - Nantes, France
Duration: 24 Sept 201827 Sept 2018
https://ipin2018.ifsttar.fr/

Publication series

Name
ISSN (Print)2162-7347
ISSN (Electronic)2471-917X

Conference

Conference9th International Conference on Indoor Positioning and Indoor Navigation
Abbreviated titleIPIN 2018
Country/TerritoryFrance
CityNantes
Period24/09/1827/09/18
Internet address

Keywords / Materials (for Non-textual outputs)

  • Magnetic Localization
  • Indoor Localization
  • Magnetic Fields
  • Three-Dimensional Magnetic Field Analysis

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