Abstract

A single-lamp visible light positioning (VLP) system based on an optical camera is proposed and demonstrated. The system uses a circular light-emitting diode (LED) to transmit ID data, and a common smartphone camera for positioning. First, we propose a scheme to calculate the azimuth angle using a marked lamp bead, avoiding the use of a magnetometer, which can improve the accuracy of the azimuth angle. Second, we propose a new positioning method using a chord in the image plane, which passes through the midpoints of two chords parallel to the LED plane. The experimental results show that when the experimental area is $1.8\;{\rm m} \times 3.6\;{\rm m} $, the three-dimensional (3D) average positioning errors are 8.0, 7.5, and 7.2 cm for the heights of 1.75, 1.45, and 1.2 m.

© 2023 Optica Publishing Group

Single LED positioning scheme based on angle sensors in robotics

Linyi Huang, Shangsheng Wen, Zihong Yan, Hongzhan Song, Shuomiao Su, and Weipeng Guan
Appl. Opt. 60(21) 6275-6287 (2021)

Indoor receiving signal strength based visible light positioning enabled with equivalent virtual lamps

Wenjing Sun, Jian Chen, and Changyuan Yu
Appl. Opt. 62(17) 4583-4590 (2023)

Hybrid indoor localization scheme with image sensor-based visible light positioning and pedestrian dead reckoning

Heqing Huang, Bo Lin, Lihui Feng, and Huichao Lv
Appl. Opt. 58(12) 3214-3221 (2019)

Vehicle positioning scheme based on particle filter assisted single LED visible light positioning and inertial fusion

Jing He and Yang Liu
Opt. Express 31(5) 7742-7752 (2023)

LED lighting area recognition for visible light positioning based on convolutional neural network in the industrial internet of things

Xiaoxiao Du, Yanyu Zhang, Ziwei Ye, Dapeng Wang, and Yijun Zhu
Opt. Express 31(8) 12778-12788 (2023)