
Real-time visible light positioning supporting fast moving speed
Author(s) -
Ping Lin,
Xubin Hu,
Yukui Ruan,
Huaping Li,
Junjian Fang,
Yi Zhong,
Hongfei Zheng,
Junbin Fang,
Zoe L. Jiang,
Zhe Chen
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.390781
Subject(s) - computer science , indoor positioning system , positioning system , real time computing , latency (audio) , precise point positioning , global positioning system , computer vision , engineering , telecommunications , accelerometer , structural engineering , gnss applications , node (physics) , operating system
Real-time capability is a key factor which affects the practicality of an indoor positioning system significantly. While visible light positioning (VLP) is widely studied since it can provide indoor positioning functionality with LED illumination, the existing VLP systems still suffer from the high positioning latency and are not practical for mobile units with high moving speed. In this paper, a real-time VLP system with low positioning latency and high positioning accuracy is proposed. With the lightweight image processing algorithm, the proposed system can be implemented on low-cost embedded system and support real-time accurate indoor positioning for mobile units with a fast moving speed. Experimental results show that the proposed system implemented on a Raspberry Pi can achieve a positioning accuracy of 3.93 cm and support the moving speed up to 38.5 km/h.