A real-time VLC to UART protocol conversion system |
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| Authors: | DENG Jian-zhi YAO Meng CHENG Xiao-hui and DENG Zhuo-hong |
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| Affiliation: | School of Information Science Technology, East China Normal University, Shanghai 200241, China;College of Information Science and Engineering, Guilin University of Technology, Guilin 541004, China;School of Information Science Technology, East China Normal University, Shanghai 200241, China;School of Information Science Technology, East China Normal University, Shanghai 200241, China;College of Information Science and Engineering, Guilin University of Technology, Guilin 541004, China;Colleges and Universities Key Laboratory of Intelligent Integrated Automation, Guilin University of Electronic Technology, Guilin 541004, China |
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| Abstract: | A real-time visible light communication (VLC) to universal asynchronous receiver/transmitter (UART) conversion system is made up of a transmitter with a light emitting diode (LED) and a receiver with a photodiode (PD), by which a VLC system is connected to traditional communication modes, and the data are transferred by wireless visible light. UART packets are converted to light packets by the modulation of a 10 kHz on-off-keying (OOK) light signal, and the data losses in the transportation are avoided by the protection of a data buffer mechanism. The experimental results reveal that the real-time VLC to UART conversion system can provide a real-time VLC transmission way for two UART devices in not less than 10 m at a baud rate not less than 19 200 Bd with stable ambient lighting at the same time. |
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