LED照明系統應用在室內無線光通訊之研究

Studies of the Implementation of the LED Lighting for Indoor Optical Wireless Communications

賴致維(Chih-Wei Lai)

指導教授 ： 賴杰

國立交通大學/電機學院/光電工程系所/碩士(2012年)

https://doi.org/10.6842/NCTU.2012.00522

摘要

本篇論文中，我們提出了利用Bias Tee結合高頻訊號以及低頻的AC電源訊號，並將結合後的訊號供給LED作可見光通訊傳輸，將AC電源與可見光通訊系統做結合，並且達到60Kbps的 Data rate，以及10-9的Bit error rate。除此之外也將TDD的技術應用在雙向傳輸的可見光通訊系統上，讓Cross Talk的現象可以完全被消除，並且達到1.4Mbps的Data Rate以及10-6的Bit error rate。在本論文中，第一章會介紹可見光通訊的起源以及背後相關的元件及技術，然後提出與可見光通訊相關的應用，為可見光通訊此主題做一個概略的介紹。第二章則是會介紹可見光通訊光源，LED，的原理以及與可見光通訊之間的關聯，並且針對可見光通訊系統常會遇到的問題及其原理作詳細的描述。第三章的部分會針對我們希望解決的問題作相關文獻的回顧以及提出我們的實驗設計及模擬。而實驗結果與討論將會在第四章中完整的呈現並作探討。最後在第五章會為本論文作出一個總結論並且提出未來需要努力的研究目標及方向。

關鍵字

發光二極體 ； 可見光通訊 ； 交流電發光二極體 ； 時分雙工

並列摘要

In this paper, we used Bias Tee circuit to combine the high frequency signal and AC power signal and provided the resultant output to LED for visible light communication. The data rate reached 60Kbps and the bit error rate is about 10-9. Besides, we used TDD to eliminate Cross Talk effect. The data rate reached about 1.4Mbps in both directions and the bit error rate less than 10-6. In chapter one, we introduced the history and the applications of visible light communication. In chapter two, we introduced the principle of the light source, light emitting diode, used in visible light communication. And we discussed the detail of the problems we met when improving the VLC systems. . In chapter three, we reviewed some related paper and proposed our experiment design. The experiment result will be shown and discussed in chapter four. At last, a brief conclusion of this paper and future work is given in chapter five.

並列關鍵字

Light Emitting Diode ； Visible Light Communication ； ACLED ； Time Division Duplex

參考文獻

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