A real-time VLC to UART protocol conversion system

作者：Deng, Jian zhi; Yao, Meng^*; Cheng, Xiao hui; Deng, Zhuo hong

来源：Optoelectronics Letters, 2016, 12(4): 299-303.

DOI：10.1007/s11801-016-6001-x

• Ambient lighting
• Communication mode
• Conversion systems
• Light emitting diode (LED)
• On off keying (OOK)
• Protocol conversion
• Visible light
• Visible light communications (VLC)

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.

• 出版日期2016
• 单位桂林理工大学; 华东师范大学