Visible light positioning based on architecture information: method and performance

Seguel, Fabián; Krommenacker, Nicolas; Charpentier, Patrick; Soto, Ismael

doi:10.1049/iet-com.2018.5623

Cited by 7 publications

(6 citation statements)

References 43 publications

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“…Convex Position Estimation (CPE), proposed by Doherty et al, uses connectivity information in order to find the minimum bounding rectangle of a connection-based set. CPE reduces the size of the feasible connectivity set using the spatial reuse characteristic of PDs [18,41]. This minimum rectangle, also called bounding box, is found by solving iteratively a linear optimization problem with connectivity constraints.…”

Section: Convex Position Estimationmentioning

confidence: 99%

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A Hybrid VLC-RF Portable Phasor Measurement Unit for Deep Tunnels

Soto

Rodrigues

Massuyama

et al. 2020

Sensors

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In this manuscript we propose a hybrid Visible Light Communication and Radio Frequency (VLC-RF) scheme for the implementation of a portable Phaser Measurement Unit (PMU) for deep underground tunnels. Through computer simulations and laboratory measurements we are capable of providing Coordinated Universal Time (UTC) to the PMUs, as well as high accuracy positioning in a Global Positioning System (GPS) denied environment. The estimated PMU position, time stamp, and electrical power system measurements are sent to a central monitoring station using a radio frequency uplink with a data rate of hundreds of Kbps. Simulations and experimental measurements show that the proposed scheme can be used to control a large number of VLC-RF PMU devices inside a tunnel. The tests demonstrate the viability of the hybrid prototype, which will improve performance compared to commercial PMUs that lack these features.

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Section: Convex Position Estimationmentioning

confidence: 99%

“…Recently, we have addressed the problem of positioning in underground mines using VLC [18][19][20][21]. In this article, and to the authors' best knowledge, we present for the first time the usage of VLC to provide time and position information in GPS format to distributed PMUs inside an underground tunnel.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid VLC-RF Portable Phasor Measurement Unit for Deep Tunnels

Soto

Rodrigues

Massuyama

et al. 2020

Sensors

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“…Indoor applications which require the tracking of devices, normally use RFID based positioning technologies for locating objects or people. It has become an interesting research and development topic since the 1990's [7][8][9][10]. RFID based localization technologies can track the movements of objects through a network of radio enabled scanning devices over a distance of several meters.…”

Section: State Of the Art-underground Mining Localization Systemsmentioning

confidence: 99%

“…Existing positioning technologies such as the global positioning system (GPS) are not useful in indoor applications, especially in underground mining environments. This is because the signal is easily blocked by most construction materials and the mobile terminal cannot process the beacons sent from the satellites [7][8][9][10][11][12]. Therefore, other wireless technologies such as Radio Frequency IDentification (RFID), Wireless Fidelity (Wi-Fi), and Zigbee have been preferred to provide indoor localization/positioning [5].…”

Section: Introductionmentioning

confidence: 99%

A Novel Frequency Domain Visible Light Communication (VLC) Three-Dimensional Trilateration System for Localization in Underground Mining

et al. 2019

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A new visible light communication (VLC) system is proposed for localization in underground mining. Existent systems, such as global positioning system (GPS) and systems based on mobile communication, are generally not useful in underground mining. The proposed system is based on a three-dimensional trilateration VLC localization scheme. This articles offers an evaluation of the proposed system in different evaluation scenarios in terms of the average localization error. The proposed algorithm localizes the source with an average localization estimation error of less than (16.4 cm), based on the source location. The average error is (3.5 cm) for subjects that are very close to the light-emitting-diode (LEDs).The obtained results show the superiority of the proposed method in comparison with traditional short range radio frequency technologies such as RFID, Wi-Fi and Zigbee, making it a feasible system for localizing objects in underground mining.

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“…To solve this problem, visible light communication (VLC)-based positioning is raised in this paper. VLC utilizes light-emitting diodes (LEDs) to provide both lighting and communication capabilities simultaneously [9,10]. LEDs are increasingly replacing indoor lighting fixtures due to their long lifespan and high energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Indoor Positioning by Double Deep Q-Network in VLC-Based Empty Office Environment

Oh,

Kim

2024

Applied Sciences

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Recently, artificial intelligence (AI) has been applied in various industries. One such application is indoor user positioning using Big Data. The traditional method for positioning is the global positioning system (GPS). However, the performance of GPS is limited indoors due to propagation loss. Hence, radio frequency (RF)-based communication methods such as WiFi and Bluetooth have been proposed as indoor positioning solutions. However, positioning performance inaccuracies arise due to signal interference caused by RF band saturation. Therefore, this study proposes indoor user positioning based on visible light communication (VLC). The proposed method involves the sequential application of fingerprinting and double deep Q-Network. Fingerprinting is utilized to define the action and state of the double deep Q-Network agent. The agent is designed to learn and locate the reference point (RP) closest to the user’s position in a shorter search time. The core idea of the proposed system is to converge a Cell-ID scheme and fingerprinting. Through this, the initial state of the double deep Q-Network agent can be limited. A limited initial state can increase the positioning speed. Simulation results show that the proposed scheme attains a positioning resolution of less than 13 cm and achieves a processing time of less than 0.03 s to obtain the final position in VLC-based office environments.

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Visible light positioning based on architecture information: method and performance

Cited by 7 publications

References 43 publications

A Hybrid VLC-RF Portable Phasor Measurement Unit for Deep Tunnels

A Hybrid VLC-RF Portable Phasor Measurement Unit for Deep Tunnels

A Novel Frequency Domain Visible Light Communication (VLC) Three-Dimensional Trilateration System for Localization in Underground Mining

Indoor Positioning by Double Deep Q-Network in VLC-Based Empty Office Environment

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