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Single LED, Single PD-Based Adaptive Bayesian Tracking Method

Recently, with the growing interest in indoor location-based services, visible light positioning (VLP) systems have been extensively studied owing to their advantages of low cost, high energy efficiency, and no electromagnetic interference. However, due to structural limitations which lead to the re...

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Detalles Bibliográficos
Autores principales: Kim, Duckyong, Park, Jong Kang, Kim, Jong Tae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9460254/
https://www.ncbi.nlm.nih.gov/pubmed/36080951
http://dx.doi.org/10.3390/s22176488
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author Kim, Duckyong
Park, Jong Kang
Kim, Jong Tae
author_facet Kim, Duckyong
Park, Jong Kang
Kim, Jong Tae
author_sort Kim, Duckyong
collection PubMed
description Recently, with the growing interest in indoor location-based services, visible light positioning (VLP) systems have been extensively studied owing to their advantages of low cost, high energy efficiency, and no electromagnetic interference. However, due to structural limitations which lead to the requirement of multiple signal sources, it has been challenging to apply VLP in real-world scenarios. In this study, we propose a single LED, single PD-based tracking system that solves these problems by applying a new Bayesian method that can effectively reduce the computational burden of particle filters. The method of evaluating particle reliability developed in this work adjusts the number of particles on the fly. Using the absolute position of the single LED source, the long-term cumulative error of the inertial measurement unit can be continuously corrected. In this regard, the applicability of the VLP system can be enhanced in places where the multiple luminescent signals are hard to consistently detect. The proposed system was verified through experiments in a classroom and a corridor, and the results show an average error of less than 11 cm at travel distances of 80 to 100 m.
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spelling pubmed-94602542022-09-10 Single LED, Single PD-Based Adaptive Bayesian Tracking Method Kim, Duckyong Park, Jong Kang Kim, Jong Tae Sensors (Basel) Article Recently, with the growing interest in indoor location-based services, visible light positioning (VLP) systems have been extensively studied owing to their advantages of low cost, high energy efficiency, and no electromagnetic interference. However, due to structural limitations which lead to the requirement of multiple signal sources, it has been challenging to apply VLP in real-world scenarios. In this study, we propose a single LED, single PD-based tracking system that solves these problems by applying a new Bayesian method that can effectively reduce the computational burden of particle filters. The method of evaluating particle reliability developed in this work adjusts the number of particles on the fly. Using the absolute position of the single LED source, the long-term cumulative error of the inertial measurement unit can be continuously corrected. In this regard, the applicability of the VLP system can be enhanced in places where the multiple luminescent signals are hard to consistently detect. The proposed system was verified through experiments in a classroom and a corridor, and the results show an average error of less than 11 cm at travel distances of 80 to 100 m. MDPI 2022-08-29 /pmc/articles/PMC9460254/ /pubmed/36080951 http://dx.doi.org/10.3390/s22176488 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
Kim, Duckyong
Park, Jong Kang
Kim, Jong Tae
Single LED, Single PD-Based Adaptive Bayesian Tracking Method
title Single LED, Single PD-Based Adaptive Bayesian Tracking Method
title_full Single LED, Single PD-Based Adaptive Bayesian Tracking Method
title_fullStr Single LED, Single PD-Based Adaptive Bayesian Tracking Method
title_full_unstemmed Single LED, Single PD-Based Adaptive Bayesian Tracking Method
title_short Single LED, Single PD-Based Adaptive Bayesian Tracking Method
title_sort single led, single pd-based adaptive bayesian tracking method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9460254/
https://www.ncbi.nlm.nih.gov/pubmed/36080951
http://dx.doi.org/10.3390/s22176488
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