Bi-Directional Data Communication using Visible Light Technology for Underwater Environment

LITA LIDYAWATI, ARSYAD RAMADHAN DARLIS, LUCIA JAMBOLA, ADITYA ARIF PRIBADI

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ABSTRAK

Pengembangan VLC (Visible Light Communication) dapat diimplementasikan ke dalam air. Pada penelitian ini dirancang sistem komunikasi menggunakan cahaya tampak untuk komunikasi dua arah di lingkungan bawah air. Sistem dirancang untuk mengirimkan sinyal digital dengan pengukuran jarak menggunakan filter warna. Terdapat dua link di bagian pemancar dan penerima. Untuk membedakan kedua link tersebut, data dari generator sinyal 3 kHz akan diaplikasikan pada link 1 dan data dari pembangkit sinyal 4 kHz akan diaplikasikan pada link 2. Berdasarkan hasil pengujian, sistem menerima data secara optimal pada link 1 dengan jarak 50 cm dengan tegangan keluaran (Vout) 4,32 Vpp, dan frekuensi keluaran (fout) 3,121 kHz. Hasil pengukuran pada link 2 didapatkan tegangan keluaran sebesar 5,28 Vpp dan frekuensi keluaran (fout) sebesar 4,021 kHz. Pengukuran pada link 1 dengan filter warna biru didapatkan tegangan rata-rata sebesar 5,46 Vpp dan frekuensi keluaran (fout)) sebesar 3,136 kHz. Sedangkan pengukuran link 2 dengan filter warna merah didapatkan tegangan rata-rata 5,11 Vpp dan fout 4,054 kHz.

Kata kunci: color filter, bidirectional, data, UVLC

 

ABSTRACT

The development of VLC (Visible Light Communication) can be implemented into underwater. In this research, we design a visible light communication system for two-way communication in the underwater environment. The system is designed to transmit digital signals with a distance measurement using a color filter. There are two links in transmitter and receiver part. To distinguish between those two links, data from the signal generator of 3 kHz will be applied on link 1 and data from the the signal generator of 4 kHz will be applied on link 2. The distance measurement system can receive the data optimally on link 1 with the distance of 50 cm, an output voltage (Vout) of 4.32 Vpp, and output frequency (fout) of 3.121 kHz. The result measurement on link 2 obtains an output voltage of 5.28 Vpp and output frequency of 4.021 kHz. The measurement on link 1 which applied the blue color filter obtains the average voltage of 5.46 Vpp and the output frequency (fout) of 3.136 kHz, while on link 2 which applied the red color filter obtains an average voltage of 5.11 Vpp and fout of 4.054 kHz.

Keyword: color filter, bidirectional, data, UVLC


Kata Kunci


color filter; frequency; link; signal generator; voltage; UVLC

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Referensi


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DOI: https://doi.org/10.26760/elkomika.v9i1.217

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