Diver Communication System Based on Underwater Optical Communication

Shuo Chen; Jun Lei Song; Zi Min Yuan; Yang Liu; Pei Pei Guo

doi:10.4028/www.scientific.net/AMM.621.259

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 621Diver Communication System Based on Underwater...

Diver Communication System Based on Underwater Optical Communication

Abstract:

The underwater diver visible light communication system integrating information collection, transmission and processing achieves the optical communication device established for the diver’s underwater wireless transmission and underwater sensor network. The front-end signal acquisition module capable of carrying out voice and image acquisition utilizes a MEMS digital microphone and a high performance CMOS camera to change optical signals in to digital ones. The signal source applies wavelet conversion and the channel coding and decoding apply Turbo algorithms, channel modulation and demodulation adopt PPM modulation, so compression, coding and modulation are mounted on TI's high-performance DSP TMS320DM642 platform to ensure the stability and reliability of data transmission. Back-end data acquisition module utilizes a photomultiplier tube and its peripheral circuits for receiving and converting optical signals. Display and storage modules are TFT and SD cards to achieve data reception and sound and light reduction and storage functions.

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Periodical:

Applied Mechanics and Materials (Volume 621)

Pages:

259-263

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.621.259

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Online since:

August 2014

Authors:

Shuo Chen*, Jun Lei Song, Zi Min Yuan, Yang Liu, Pei Pei Guo

Keywords:

PPM Modulation, TMS320DM642, Turbo Codes, Visible Light Communication, Wavelet Conversion

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* - Corresponding Author

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