研究目的
Investigating and analyzing different LED arrangements for estimating the illumination uniformity in a VLC system.
研究成果
The study demonstrated that increasing the radius of the circular array of LEDs improves illumination uniformity within the room. The proposed optimal arrangement of LEDs further enhanced uniformity, making it a viable solution for effective VLC systems.
研究不足
The study considered only single bounce reflections from the walls, which may not fully capture the complexity of real-world environments. The impact of multiple reflections and other interference sources was not addressed.
1：Experimental Design and Method Selection:
The study involved simulating different LED arrangements in a room model using MATLAB to estimate illumination uniformity, considering single bounce reflections from the walls.
2：Sample Selection and Data Sources:
A room of 5×5×3 m3 dimensions was assumed, with LED lights installed at the ceiling and a receiving plane consisting of 20×20 receivers.
3：List of Experimental Equipment and Materials:
MATLAB software for simulation.
4：Experimental Procedures and Operational Workflow:
Simulation was carried out for different cases of circular LED arrangements by varying the radius of the circular array from 1.5m to 2.3m with 0.2m separation. An optimal arrangement was also proposed and analyzed.
5：5m to 3m with 2m separation. An optimal arrangement was also proposed and analyzed.
Data Analysis Methods:
5. Data Analysis Methods: The uniformity of illumination was calculated using the equation U = Emin/Eavg, where Emin and Eavg are the minimum and average value of illumination on the receiving plane.
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