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WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags
To achieve device-free indoor localization without the active participation of the users, this paper presents WallSense, a device-free indoor localization system based on off-the-shelf Radio RFID (Radio-Frequency Identification) equipment. The system deploys two orthogonal tag arrays in adjoining wa...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6339054/ https://www.ncbi.nlm.nih.gov/pubmed/30585206 http://dx.doi.org/10.3390/s19010068 |
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author | Ma, Liang Liu, Meng Wang, Hongjun Yang, Yang Wang, Na Zhang, Yajun |
author_facet | Ma, Liang Liu, Meng Wang, Hongjun Yang, Yang Wang, Na Zhang, Yajun |
author_sort | Ma, Liang |
collection | PubMed |
description | To achieve device-free indoor localization without the active participation of the users, this paper presents WallSense, a device-free indoor localization system based on off-the-shelf Radio RFID (Radio-Frequency Identification) equipment. The system deploys two orthogonal tag arrays in adjoining walls and uses the RSSI and phase information measured by RFID readers to localize the target. By differentiating the backscattered signal between adjacent tag pairs, WallSense is able to eliminate most undesirable factors and extract information directly related to the location of the target. By applying Particle Swarm Optimization (PSO) with a novel weighted fitness function and combining the localization result of two orthogonal tag arrays, the system is able to localize the target with high accuracy. Experiments show that the system is able to localize human target with 0.24 m median error. Also, WallSense has low deployment overhead and do not require the users to carry any devices. |
format | Online Article Text |
id | pubmed-6339054 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63390542019-01-23 WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags Ma, Liang Liu, Meng Wang, Hongjun Yang, Yang Wang, Na Zhang, Yajun Sensors (Basel) Article To achieve device-free indoor localization without the active participation of the users, this paper presents WallSense, a device-free indoor localization system based on off-the-shelf Radio RFID (Radio-Frequency Identification) equipment. The system deploys two orthogonal tag arrays in adjoining walls and uses the RSSI and phase information measured by RFID readers to localize the target. By differentiating the backscattered signal between adjacent tag pairs, WallSense is able to eliminate most undesirable factors and extract information directly related to the location of the target. By applying Particle Swarm Optimization (PSO) with a novel weighted fitness function and combining the localization result of two orthogonal tag arrays, the system is able to localize the target with high accuracy. Experiments show that the system is able to localize human target with 0.24 m median error. Also, WallSense has low deployment overhead and do not require the users to carry any devices. MDPI 2018-12-25 /pmc/articles/PMC6339054/ /pubmed/30585206 http://dx.doi.org/10.3390/s19010068 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ma, Liang Liu, Meng Wang, Hongjun Yang, Yang Wang, Na Zhang, Yajun WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags |
title | WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags |
title_full | WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags |
title_fullStr | WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags |
title_full_unstemmed | WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags |
title_short | WallSense: Device-Free Indoor Localization Using Wall-Mounted UHF RFID Tags |
title_sort | wallsense: device-free indoor localization using wall-mounted uhf rfid tags |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6339054/ https://www.ncbi.nlm.nih.gov/pubmed/30585206 http://dx.doi.org/10.3390/s19010068 |
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