International journal of advanced smart convergence

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Low Rate VLC Receiver Design Using NCP302 Voltage Detector for IoT/IoL Connected Smart Homes

  • Lee, Beomhee (Department of Media IT Engineering, Seoul National University of Science & Technology) ;
  • Mariappan, Vinayagam (Graduate School of Nano IT Design Fusion, Seoul National University of Science and Technology) ;
  • Khudaybergenov, Timur (Graduate School of Nano IT Design Fusion, Seoul National University of Science and Technology) ;
  • Han, Jungdo (Dept. Integrated IT Engineering, Seoul National University of Science and Technology) ;
  • Cha, Jaesang (Dept. Electronics and IT Media Engineering, Seoul National University of Science and Technology)
  • Received : 2018.09.16
  • Accepted : 2018.09.28
  • Published : 2018.12.31
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Abstract

The Internet of Things (IoT) and Visible Light Communication (VLC) is opening up new services in lighting industry by integrating sensory network features in addition to standard illumination functionality. In this progressive developments, the next generation lighting devices for smart homes are capable to sense the environmental conditions and transfer the captured data through lights to gateway controller to access remotely. The smart home environmental sensor information's are few kbps only so VLC systems need to built-in with low rate light connectivity to transfer data to the gateway. To provide error free communication, the quality of a received light signal is important to be considered when designing an VLC receiver. Therefore, this paper proposes the design of robust low rate IoL receiver design using NCP302 voltage detector for micro controller to adapt the IoT/IoL front end module for system integration. To evaluate the proposed system performance, the Arduino UNO based IoT/IoL controller designed with lighting, sensors and lights connectivity interfaces. The experimental result shows that the robust interference rejection is feasible on proposed VOL receiver and possible to have an error-free communication up to 10 kbps at a low SNR using OOK modulation.

Keywords

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Figure 1. IoT Connected Lighting System

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Figure 2. IoT/IoL Connected Lighting System

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Figure 3. IoT/IoL Lighting System Gateway

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Figure 4. IoL Lighting System Interference Model

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Figure 5. Proposed Low Rate VLC Receiver System

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Figure 6. Proposed Real-time Low Rate VLC Receiver System

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Figure 7. Measured Real-time Low Rate VLC Receiver System Output Signal Waveforms

Table 1. Experimental Environmental Conditions

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