센서학회지 (Journal of Sensor Science and Technology)

  • 제20권3호
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  • Pages.193-198
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  • 2011
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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조명용 LED의 광전궤환을 이용한 가시광 무선인식장치

Visible Light Identification System Using Optoelectronic Feedback of A Lighting LED

  • 이성호 (서울과학기술대학교 전자정보공학과)
  • Lee, Seong-Ho (Department of Electronic & Information Engineering, Seoul National University of Science and Technology)
  • 투고 : 2011.03.24
  • 심사 : 2011.05.09
  • 발행 : 2011.05.31
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초록

In this paper, we used optoelectronic feedback to generate the carrier frequency for the ASK modulation of a lighting LED. A solar cell was used for photo-detector in the feedback circuit, and the LED light was ASK modulated by controlling the ON/OFF state of the switch that is installed in the feedback loop. The oscillation frequency of the optoelectronic feedback loop was about 50 kHz and the data rate of the ASK modulation was 9.6 kbps. In experiments, the optoelectronic feedback circuit was used for the ASK modulation of a lighting LED in the transponder of a visible light identification system, and data exchange between the transponder and the reader was successfully carried out.

키워드

참고문헌

  1. Toshihiko Komine and Masao Nakagawa, "Fundamental analysis for visible-light communication system using LED lights", IEEE Transactions on Consumer Electronics, vol. 50, no. 1, pp. 100-107, 2004. https://doi.org/10.1109/TCE.2004.1277847
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  3. A. M. Street, P. N. Stavrinou, D. C. O'Brien, and D. J. Edwards", Indoor optical wireless systems-a review", Opt. Quantum Electron., vol. 29, pp. 349-378, 1997. https://doi.org/10.1023/A:1018530828084
  4. Seong-Ho Lee, "Reducing the effects of ambient noise light in an indoor optical wireless system using polarizers,"Microwave And Optical Technology Letters, vol. 40, no. 3, pp. 228-231, Feb. 5, 2004. https://doi.org/10.1002/mop.11337
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피인용 문헌

  1. Synchronous Visible Light Communication Systems Using 3-Level LED Modulation vol.22, pp.6, 2013, https://doi.org/10.5369/JSST.2013.22.6.421
  2. Visible Light Communication Systems for Sensor Networks Using Synchronizing Pulse Transmission Through the Power Lines vol.22, pp.3, 2013, https://doi.org/10.5369/JSST.2013.22.3.212
  3. Reducing the Effects of Noise Light in a Visible Light Communication System Using Two Color LEDs vol.21, pp.6, 2012, https://doi.org/10.5369/JSST.2012.21.6.429
  4. Reducing the Effects of Noise Light Using Inter-Bit Noise Detection in a Visible Light Identification System vol.20, pp.6, 2011, https://doi.org/10.5369/JSST.2011.20.6.412