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Using Barometer for Floor Assignation within Statistical Indoor Localization

This paper presents methods for floor assignation within an indoor localization system. We integrate the barometer of the phone as an additional sensor to detect floor changes. In contrast to state-of-the-art methods, our statistical model uses a discrete state variable as floor information, instead...

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Autores principales: Fetzer, Toni, Ebner, Frank, Deinzer, Frank, Grzegorzek, Marcin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824770/
https://www.ncbi.nlm.nih.gov/pubmed/36616678
http://dx.doi.org/10.3390/s23010080
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author Fetzer, Toni
Ebner, Frank
Deinzer, Frank
Grzegorzek, Marcin
author_facet Fetzer, Toni
Ebner, Frank
Deinzer, Frank
Grzegorzek, Marcin
author_sort Fetzer, Toni
collection PubMed
description This paper presents methods for floor assignation within an indoor localization system. We integrate the barometer of the phone as an additional sensor to detect floor changes. In contrast to state-of-the-art methods, our statistical model uses a discrete state variable as floor information, instead of a continuous one. Due to the inconsistency of the barometric sensor data, our approach is based on relative pressure readings. All we need beforehand is the ceiling height including the ceiling’s thickness. Further, we discuss several variations of our method depending on the deployment scenario. Since a barometer alone is not able to detect the position of a pedestrian, we additionally incorporate Wi-Fi, iBeacons, Step and Turn Detection statistically in our experiments. This enables a realistic evaluation of our methods for floor assignation. The experimental results show that the usage of a barometer within 3D indoor localization systems can be highly recommended. In nearly all test cases, our approach improves the positioning accuracy while also keeping the update rates low.
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spelling pubmed-98247702023-01-08 Using Barometer for Floor Assignation within Statistical Indoor Localization Fetzer, Toni Ebner, Frank Deinzer, Frank Grzegorzek, Marcin Sensors (Basel) Article This paper presents methods for floor assignation within an indoor localization system. We integrate the barometer of the phone as an additional sensor to detect floor changes. In contrast to state-of-the-art methods, our statistical model uses a discrete state variable as floor information, instead of a continuous one. Due to the inconsistency of the barometric sensor data, our approach is based on relative pressure readings. All we need beforehand is the ceiling height including the ceiling’s thickness. Further, we discuss several variations of our method depending on the deployment scenario. Since a barometer alone is not able to detect the position of a pedestrian, we additionally incorporate Wi-Fi, iBeacons, Step and Turn Detection statistically in our experiments. This enables a realistic evaluation of our methods for floor assignation. The experimental results show that the usage of a barometer within 3D indoor localization systems can be highly recommended. In nearly all test cases, our approach improves the positioning accuracy while also keeping the update rates low. MDPI 2022-12-22 /pmc/articles/PMC9824770/ /pubmed/36616678 http://dx.doi.org/10.3390/s23010080 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fetzer, Toni
Ebner, Frank
Deinzer, Frank
Grzegorzek, Marcin
Using Barometer for Floor Assignation within Statistical Indoor Localization
title Using Barometer for Floor Assignation within Statistical Indoor Localization
title_full Using Barometer for Floor Assignation within Statistical Indoor Localization
title_fullStr Using Barometer for Floor Assignation within Statistical Indoor Localization
title_full_unstemmed Using Barometer for Floor Assignation within Statistical Indoor Localization
title_short Using Barometer for Floor Assignation within Statistical Indoor Localization
title_sort using barometer for floor assignation within statistical indoor localization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824770/
https://www.ncbi.nlm.nih.gov/pubmed/36616678
http://dx.doi.org/10.3390/s23010080
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