Visible Light Based Indoor Navigation

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Dr. Csurgai-Horváth László
Department of Broadband Infocommunications and Electromagnetic Theory

Enviromental protection becomes more and more important, due to this power saving is also a key area to focus on. The newly applied LEDs allow wider representation of Visible Light Communication in the industry. Since the GPS used by civilians have limitations, I developed an indoor navigational system based on LEDs.

To accomplish our goal, I utilized a smartphone with the Android platform. First a theoretical approach will be done, to understand the way how the camera of the phone can be used to detect the frequency of the flashing LED.

After examining the phone for the required physical parameters, effective processing algorithms will be presented along with the necessary hardware. Before implementing the algorithm, an examination will be done using Matlab to verify the exactness of the operation. The used hardware will be separately reviewed.

Ultimately the proper real-time operation will be demonstrated with a physically built system. The observed results will be evaluated afterwards.


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