NDLI: A Two-LED Based Indoor Three-Dimensional Visible Light Positioning and Orienteering Scheme for a Tilted Receiver

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A Two-LED Based Indoor Three-Dimensional Visible Light Positioning and Orienteering Scheme for a Tilted Receiver

Content Provider	MDPI
Author	You, Xiaodi Yang, Xiaobai Jiang, Zile Zhao, Shuang
Copyright Year	2022
Description	Conventional visible light positioning (VLP) systems usually require at least three light-emitting diodes (LEDs) to enable trilateration or triangulation, which is infeasible when the LED condition is constrained. In this paper, we propose a novel indoor three-dimensional (3D) VLP and orienteering (VLPO) scheme. By using only two LEDs and two photo-detectors (PDs), our scheme can achieve simultaneous 3D localization and receiver orientation estimation efficiently. Further, to eliminate the location uncertainty caused by receiver tilt, we propose a location selection strategy which can effectively determine the true location of the receiver. Through extensive simulations, it is found that when the receiver faces upwards, the proposed scheme can achieve a mean 3D positioning error of 7.4 cm and a mean azimuthal error of 7.0°. Moreover, when the receiver tilts with a polar angle of 10°, accurate VLPO can still be achieved with 90.3% of 3D positioning errors less than 20 cm and 92.6% of azimuthal errors less than 5°. These results indicate that our scheme is a promising solution to achieve accurate VLPO when there is only two LEDs. Results also verify the effectiveness of the VLPO scheme when locating a tilted receiver.
Starting Page	159
e-ISSN	23046732
DOI	10.3390/photonics9030159
Journal	Photonics
Issue Number	3
Volume Number	9
Language	English
Publisher	MDPI
Publisher Date	2022-03-05
Access Restriction	Open
Subject Keyword	Photonics Industrial Engineering Visible Light Positioning (vlp) Three-dimensional (3d) Visible Light Positioning and Orienteering (vlpo) Light-emitting Diode (led)
Content Type	Text
Resource Type	Article

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