Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Time Division Transmission of Visible Light Channels Using Power Line Frequency

전력선 주파수를 이용한 가시광 채널의 시분할 전송

  • Lee, Seong-Ho (Department of Electronics and IT Media Engineering, Seoul National University of Science and Technology)
  • 이성호 (서울과학기술대학교 전자 IT 미디어공학과)
  • Received : 2014.09.09
  • Accepted : 2014.09.25
  • Published : 2014.09.30
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Abstract

In this paper, we developed a new method to transmit multiple visible light channels in time division mode using the AC power line frequency in order to prevent the crosstalk between adjacent optical signals. Synchronizing pulses are generated from the 220 V power line, and one pulse period is subdivided into several time slots for visible light channels. Each channel transmits data in a predefined time slot without interfering adjacent channels. In experiments, synchronizing pulses with a repetition rate of 240 Hz were generated from the 60 Hz power line, and three VLC channels with a bit rate of 9.6 kbps transmitted data independently using the time slots between synchronizing pulses. This configuration is very useful in constructing time division VLC networks for multiple sensors.

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References

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Cited by

  1. Time-division Visible Light Communication Using LED Lamp Light vol.24, pp.3, 2015, https://doi.org/10.5369/JSST.2015.24.3.145