白光LED照明通信关键技术及发展趋势研究

Key techniques and development trend of visible light communication based on white LEDs

与传统照明光源相比,白光LED具有高效节能长寿环保等明显优势,这种绿色固态照明产品将会成为未来人工照明光源的主流产品。而且白光LED相对于传统光源,还有响应快、调制性好和灵敏度高的特点,能够在用作照明光源的同时,传输信号进行通信,实现白光LED照明通信双重功能。本文介绍了白光LED照明通信系统的基本构成,分析其关键技术及发展趋势。

Because the white LED has tremendous advantages over the traditional lighting source, it will become the next generation of green products for illumination. At the same time, white LED possesses the characteristics of short response time and high speed modulation compared with the traditional lighting source. Therefore, white LED can be used as wireless communication to transmit information while realizing the illumination function. This emerging technology which has been the present focuses is called visible light communication technology. In this paper we introduce the constituent of visible light communication based on white LED, analyze the key techniques and clarify the development trend of the system.