Open AccessResearch and Prospect on Key Technologies of Indoor Positioning Based on Visible Light Communication
Author(s) -
Yong Cao,
Yifan Zheng,
Xiao Wang,
Liu Yan-bo,
Yi Liu
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2160/1/012074
Subject(s) - visible light communication , computer science , multipath propagation , positioning technology , hybrid positioning system , indoor positioning system , bluetooth , wireless , positioning system , key (lock) , real time computing , telecommunications , electronic engineering , engineering , electrical engineering , computer security , light emitting diode , channel (broadcasting) , accelerometer , structural engineering , node (physics) , operating system
Indoor positioning has become a research hotspot because of its important application value in industrial production and daily life. Traditional wireless positioning technologies such as Wi Fi and Bluetooth are difficult to achieve high-precision indoor positioning due to electromagnetic interference and multipath effect. The modulated white LED can not only meet the needs of lighting, but also transmit the location information to achieve high-precision indoor positioning. This paper first introduces several modulation methods commonly used in visible light positioning system, compares the characteristics of different modulation methods, and proposes a modulation method suitable for visible light positioning; Then, two demodulation methods of the visible light positioning system are introduced and discussed; After that, several visible light location algorithms are introduced, and the performance of each algorithm is analyzed in detail; Finally, the problems in visible light positioning are discussed and prospected.