High precision UWB-IR indoor positioning system for IoT applications

Ling, Rejina Wei Choi; Gupta, Ankur Kumar; Vashistha, Ankush; Sharma, Manmohan; Law, Choi Look

doi:10.1109/wf-iot.2018.8355162

Cited by 24 publications

(14 citation statements)

References 7 publications

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“…As shown in Fig. 16, a target is located at an initial position (1, 1), and it finally arrives at position (1, 3) via position (3,2). Therefore, the results of the fabricated TSA showed a minimum error of 3.27 cm and a maximum error of 16.33 cm, confirming the possibility of using the 2D wireless positioning technology.…”

Section: B Analysis Of the Indoor Wireless Positioning At 2d Coordinmentioning

confidence: 66%

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Analysis of Tapered Slot Antenna With High Gain for 2D Indoor Wireless Positioning

Kim

Choi

et al. 2019

IEEE Access

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In this paper, a tapered slot antenna (TSA) for indoor wireless positioning at 2D coordinates is proposed. Three square slots and a semi-circular structure are added to the radiation element and the tapered aperture edge to obtain a high gain. The typical performance of the proposed antenna is analyzed by the voltage standing wave ratio (VSWR), the radiation pattern, and the realized gain. In order to verify the practicality of the indoor wireless positioning system at 2D coordinates, the fabricated TSA was connected to an NVA-R661 module developed by Xethru Inc. The impedance bandwidth result of the fabricated TSA has a wide bandwidth of 7.5 GHz by satisfying a VSWR ≤ 2 in a band of 4.5-12.0 GHz. Therefore, the radiation pattern indicated good directional characteristics, the maximum gain obtained is 8.92 dBi in the 9-GHz band. Finally, the target detection results of the indoor positioning system showed a minimum error of 3.27 cm and a maximum error of 16.33 cm, and thereby confirming the possibility of its use.

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Section: B Analysis Of the Indoor Wireless Positioning At 2d Coordinmentioning

confidence: 66%

“…Recently, interest in Internet of Things (IoT) technologies has been received considerable attention owing to the fourth industrial revolution [1], [2]. Herein, we aim to apply indoor wireless positioning technology to IoT technology.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Tapered Slot Antenna With High Gain for 2D Indoor Wireless Positioning

Kim

Choi

et al. 2019

IEEE Access

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“…In [10], autonomous anchor calibration is studied. Tag localisation is the focus in [11] while [12] aims at enhancing the performance of fall detection solutions by localising the monitored elderly and providing the companion robot with the position where the suspected fall took place. Unfortunately, in addition to using homemade devices, the testbeds used in [10] and [11] involve heterogeneous node architectures, i.e.…”

Section: Related Workmentioning

confidence: 99%

LocURa: A New Localisation and UWB-Based Ranging Testbed for the Internet of Things

Bossche

Dalce

González

et al. 2018

2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN)

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As many applications of the Internet of Things assume the knowledge of mobile object position, localisation has become a hot topic in the academic research community as well as for industrial R&D departments. Although distance measurements (ranging) and localisation can be studied though simulations, using real nodes provides more accurate and realistic results, especially when the nodes are deployed in the target environment. In order to support this effort, the paper presents LocURa4IoT, a new Localisation and UWB-based Ranging testbed for the Internet of Things. The testbed is made of 20 nodes based on Decawave DW1000 UWB-based transceiver and Arduino-compliant micro-controllers. The nodes' control infrastructure is presented in the paper, as well as a few results obtained with LocURa. Two open datasets are also published with the paper.

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“…This piece of information is normally retrieved by performing the so-called calibration procedure in which manual innervation is required to calculate the exact position of the fixed nodes. Several solutions [7,18,57,83] show that for an average office size (in the order of 6x4 m 2 ) with LOS conditions, four anchors should be sufficient to track hundreds of tags and therefore the installation process is usually smooth and cost effective. Once enough fixed nodes have been placed, the tags can estimate the distances to each of the anchors and calculate their own locations using algorithms such as multilateration.…”

Section: Introductionmentioning

confidence: 99%

Self-calibration and Collaborative Localization for UWB Positioning Systems

et al. 2021

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Ultra-Wideband (UWB) is a Radio Frequency technology that is currently used for accurate indoor localization. However, the cost of deploying such a system is large, mainly due to the need for manually measuring the exact location of the installed infrastructure devices (“anchor nodes”). Self-calibration of UWB reduces deployment costs, because it allows for automatic updating of the coordinates of fixed nodes when they are installed or moved. Additionally, installation costs can also be reduced by using collaborative localization approaches where mobile nodes act as anchors. This article surveys the most significant research that has been done on self-calibration and collaborative localization. First, we find that often these terms are improperly used, leading to confusion for the readers. Furthermore, we find that in most of the cases, UWB-specific characteristics are not exploited, so crucial opportunities to improve performance are lost. Our classification and analysis provide the basis for further research on self-calibration and collaborative localization in the deployment of UWB indoor localization systems. Finally, we identify several research tracks that are open for investigation and can lead to better performance, e.g., machine learning and optimized physical settings.

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High precision UWB-IR indoor positioning system for IoT applications

Cited by 24 publications

References 7 publications

Analysis of Tapered Slot Antenna With High Gain for 2D Indoor Wireless Positioning

Analysis of Tapered Slot Antenna With High Gain for 2D Indoor Wireless Positioning

LocURa: A New Localisation and UWB-Based Ranging Testbed for the Internet of Things

Self-calibration and Collaborative Localization for UWB Positioning Systems

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