조명용 LED를 이용한 무선 통신 시스템

Metadata Downloads
Issued Date
통신 시스템

Wireless communication using light-emitting diodes
for illumination

Choi, Joon Ho
Advisor : Prof. Lee, Chung Ghiu, Ph.D.
Department of Electronic Engineering,
Graduate School of Chosun University

The objective of the research is to develop a MHz-range communication link
using visible light-emitting diodes and an appropriate modulation format whi
ch supports data communication upon illumination.
Recently, the development of illumination LEDs in the visible light wavele
ngth ranges has been active for LED illumination devices. As the communicati
on technology based on visible LEDs is on the phase of standardization by IE
EE 802.15, the research results from this thesis is important to develop a s
ystem concept, standardization, and technology implementation.
To implement communication transmitter and receiver for this experiment, t
he inverter is used at 20 Mb/s to transmit data signal with the distance of 10 cm or 20 cm.
On the other hand, it is performed to transmit PPM signal over PWM signal maintaining illumination. The generation and measurement of the PPM over PW
M signals take advantage of 'LabVIEW'. The original PPM signal is recovered
successfully with the receiver.
Alternative Title
Wireless communication using light-emitting diodes for illumination
Alternative Author(s)
Choi, Joon Ho
조선대학교 전자정보공과대학 통신시스템 연구실
일반대학원 전자공학과
Awarded Date
Table Of Contents
목 차

1. 서론 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 1
1.1 연구의 배경 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 1
1.2 기술동향 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 1
1.3 연구범위 및 내용 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4

2. 가시광 통신기술 개요 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 5
2.1 기존의 통신방식 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙5
2.2 LED를 이용한 가시광 통신기술 개발 동향 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 10
2.3 가시광 무선통신 표준화 동향 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 12
2.4 가시광통신 관련분야 연구동향 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 13

3. LED를 이용한 가시광 통신 모듈 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 15
3.1 인버터를 이용한 가시광 통신 모듈 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 15
3.2 20 MHz 에서 동작하는 가시광 송∙수신기 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 22

4. 조명을 고려한 가시광 통신 시스템 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 26
4.1 가산기 회로를 이용한 PWM + PPM 신호 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙26
4.2 LabVIEW 를 이용한 PWM + PPM 신호 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 31
4.3 PPM 신호 복원 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 35
4.4 PWM 신호 폭에 따른 LED의 밝기 비교 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 41

5. 결론 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙43

[참고문헌] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙44
[부 록] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙50
조선대학교 일반대학원
최준호. (2010). 조명용 LED를 이용한 무선 통신 시스템.
Appears in Collections:
General Graduate School > 3. Theses(Master)
Authorize & License
  • AuthorizeOpen
  • Embargo2010-08-25
Files in This Item:

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.