지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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In this paper, we introduce a new method for controlling the illumination of LEDs in visible light communication (VLC) by changing the duty cycle of Manchester code. When VLC data were transmitted in Manchester code, the average optical power of the LEDs was proportional to the duty cycle. In experiments, we controlled the illumination of a 33 LED array from 10% to 90% of its peak value by changing the duty cycle of the Manchester code. The synchronizing clocks required for encoding and decoding the Manchester code were supplied by pulse generators that were connected to a 220 V power line. All pulse generators made the same pulses with a repetition frequency of 120 Hz, and they were synchronized with the full-wave rectified voltage of the power line. This scheme is a very simple and useful method for constructing indoor wireless sensor networks using LED light.
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참고문헌 (7)
참고문헌 신청
T. Komine / 2004 / Fundamental analysis for visible-light communication system using LED lights / IEEE Trans. Consumer Electron 50(1):100~107
Y. K. Cheong / 2013 / Hazardless biomedical sensing data transmission using VLC / IEEE Sensors Journal 13(9):3347~3348
S. H. Lee / 2015 / A passive transponder for visible light identification using a solar cell / IEEE Sensors Journal 15(10):5398~5403
K. Suzuki / 2015 / Basic study on receiving Light Signal by LED for bidirectional visible light communications / Electronics and Communications in Japan 98(2):1~9
Sheng Zong / 2012 / A novel method for illumination and communication using white LED lights / 6th IET International Conference on Power Electronics, Machines and Drives :1~5
Y. K. Cheong / 2013 / Hazardless biomedical sensing data transmission using VLC / IEEE Sensors Journal 13(9):3347~3348
S. H. Lee / 2015 / A passive transponder for visible light identification using a solar cell / IEEE Sensors Journal 15(10):5398~5403
K. Suzuki / 2015 / Basic study on receiving Light Signal by LED for bidirectional visible light communications / Electronics and Communications in Japan 98(2):1~9
Sheng Zong / 2012 / A novel method for illumination and communication using white LED lights / 6th IET International Conference on Power Electronics, Machines and Drives :1~5
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