Results 1 to 10 of about 56,351 (147)

A Low-Cost Visible Light Positioning System for Indoor Positioning [PDF]

Sensors, 2020
Currently, a high percentage of the world’s population lives in urban areas, and this proportion will increase in the coming decades. In this context, indoor positioning systems (IPSs) have been a topic of great interest for researchers.
Juan Carlos Torres, Aitor Montes, Sandra L. Mendoza, Pedro R. Fernández, Juan S. Betancourt, Lorena Escandell, Carlos I. del Valle, José Manuel Sánchez-Pena   +7 more
doaj   +9 more sources

Automating the Calibration of Visible Light Positioning Systems [PDF]

Sensors, 2022
Visible light positioning is one of the most popular technologies used for indoor positioning research. Like many other technologies, a calibration procedure is required before the system can be used.
Robin Amsters, Simone Ruberto, Eric Demeester, Nobby Stevens, Peter Slaets   +4 more
doaj   +6 more sources

A Comprehensive Study on Light Signals of Opportunity for Subdecimetre Unmodulated Visible Light Positioning [PDF]

Sensors, 2020
Currently, visible light positioning (VLP) enabling an illumination infrastructure requires a costly retrofit. Intensity modulation systems not only necessitate changes to the internal LED driving module, but decrease the LEDs’ radiant flux as well. This
Sander Bastiaens, Kenneth Deprez, Luc Martens, Wout Joseph, David Plets   +4 more
doaj   +2 more sources

Visible Light Positioning via Floor Reflections [PDF]

IEEE Access, 2019
The last two decades have witnessed significant advances in the field of indoor positioning systems, which have led to technologies with high location precision.
Fan Yang, Shining Li, Hongbang Zhang, Yang Niu, Cheng Qian, Zhe Yang   +5 more
doaj   +2 more sources

Demonstration of Three-Dimensional Indoor Visible Light Positioning with Multiple Photodiodes and Reinforcement Learning [PDF]

Sensors, 2020
To provide high-quality location-based services in the era of the Internet of Things, visible light positioning (VLP) is considered a promising technology for indoor positioning.
Zhuo Zhang, Huayang Chen, Weikang Zeng, Xinlong Cao, Xuezhi Hong, Jiajia Chen   +5 more
doaj   +2 more sources

Calibration of Visible Light Positioning Systems with a Mobile Robot. [PDF]

Sensors (Basel), 2021
Most indoor positioning systems require calibration before use. Fingerprinting requires the construction of a signal strength map, while ranging systems need the coordinates of the beacons. Calibration approaches exist for positioning systems that use Wi-Fi, radio frequency identification or ultrawideband.
Amsters R, Demeester E, Stevens N, Slaets P.   +3 more
europepmc   +5 more sources

Indoor Real-Time 3-D Visible Light Positioning System Using Fingerprinting and Extreme Learning Machine

IEEE Access, 2020
Photodiode-based (PD-based) visible light positioning (VLP) has become a research focus of indoor positioning technology, while the existing VLP models rarely consider the anti-interference and positioning time of that.
Yirong Chen, Weipeng Guan, Jingyi Li, Hongzhan Song   +3 more
doaj   +3 more sources

Angle-of-Arrival (AOA) Visible Light Positioning (VLP) System Using Solar Cells With Third-Order Regression and Ridge Regression Algorithms

IEEE Photonics Journal, 2020
We put forward and demonstrate a angle-of-arrival (AOA) based visible-light-positioning (VLP) system using quadrant-solar-cell (QSC) and third-order ridge regression machine learning (RRML) to improve the positioning accuracy.
Chong-You Hong, Yu-Chun Wu, Yang Liu, Chi-Wai Chow, Chien-Hung Yeh, Ke-Ling Hsu, Dong-Chang Lin, Xin-Lan Liao, Kun-Hsien Lin, Yi-Yuan Chen   +9 more
doaj   +3 more sources

Image Sensor-Based Three-Dimensional Visible Light Positioning for Various Environments [PDF]

Sensors
Research on image sensor (IS)-based visible light positioning systems has attracted widespread attention. However, when the receiver is tilted or under a single LED, the positioning system can only achieve two-dimensional (2D) positioning and requires ...
Xiangyu Liu, Junqi Zhang, Song Song, Lei Guo   +3 more
doaj   +2 more sources

Direct and Two-Step Positioning in Visible Light Systems [PDF]

IEEE Transactions on Communications, 2018
Visible light positioning (VLP) systems based on light emitting diodes can facilitate high accuracy localization services for indoor scenarios. In this paper, direct and two-step positioning approaches are investigated for both synchronous and asynchronous VLP systems.
Orhan Arikan, Sinan Gezici, Musa Furkan Keskin   +2 more
exaly   +3 more sources