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A Fast and High-Accuracy Real-Time Visible Light Positioning System Based on Single LED Lamp With a Beacon | IEEE Journals & Magazine | IEEE Xplore

A Fast and High-Accuracy Real-Time Visible Light Positioning System Based on Single LED Lamp With a Beacon


Impact Statement:1. An unbalanced single-LED VLP algorithm is proposed. Compared to our previous work, the proposed algorithm only need to process one LED lamp to achieve the dual-LED pos...Show More

Abstract:

With the advantages of high positioning accuracy and low cost, visible light positioning (VLP) is becoming a promising solution for practical indoor positioning system. H...Show More
Impact Statement:
1. An unbalanced single-LED VLP algorithm is proposed. Compared to our previous work, the proposed algorithm only need to process one LED lamp to achieve the dual-LED positioning. 2. A fast beacon searching algorithm is proposed. Compared with other VLP works, our algorithm does not require complex image processing and additional sensors. 3. The proposed system can be implemented on low-end hardware platform, which will further enhance the practicability of VLP technologies in actual scenarios.

Abstract:

With the advantages of high positioning accuracy and low cost, visible light positioning (VLP) is becoming a promising solution for practical indoor positioning system. However, most of the VLP systems require at least two VLP LED lamps for accurate position calculation. Therefore, the application of VLP in practical scenarios may be restricted due to this limitation. In this paper, we propose a fast and high-accuracy single-LED based VLP system. Firstly, an unbalanced single-LED VLP algorithm is proposed to increase the positioning accuracy and reduce the computational complexity. Secondly, a fast beacon searching algorithm is proposed to further reduce the processing time for each captured image. Finally, since the proposed algorithms have the advantages of high accuracy and low complexity, the proposed system can also be implemented on a low-end hardware platform. Experimental results show that the average positioning error of the proposed system is decreased to 2.26 cm at the height of 3 m, and the average positioning time is reduced to 6.3 ms on a laptop and 60ms on a low-end embedded platform.
Published in: IEEE Photonics Journal ( Volume: 12, Issue: 6, December 2020)
Article Sequence Number: 7906512
Date of Publication: 20 October 2020

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