LED路灯可见光通信模型的研究  

Research on visible light communication model of LED street lamp

作　　者：邓健志[1] 孙科壮 程小辉[1] DENG Jianzhi;SUN Kezhuang;CHENG Xiaohui(Guangxi key Laboratory Embedded Technology and Intelligent System,Guilin University of Technology,Guilin Guangxi 541004,China)

机构地区：[1]桂林理工大学广西嵌入式技术与智能系统重点实验室,广西桂林541004

出　　处：《光通信技术》2020年第5期53-57,共5页Optical Communication Technology

基　　金：广西科技研究项目(1598007-16)资助;国家自然科学基金(61262075)资助。

摘　　要：针对智慧路灯及车联网的应用需求,设计了基于可见光发光二极管(LED)路灯的通信模型。首先,提出LED单路稳定和多路稳定的照度预均衡方法,并测试了预均衡接收效果。其次,根据单侧、双侧对称和双侧非对称等路灯安装方式,用朗伯特模型构造和仿真了3种路灯的空间照度分布数学模型,分析了道路近地区域的平均照度。最后,据此设计了可见光信号的车辆接收模型和LED路灯到车辆的色分多路复用(CDM)可见光通信模型,并分析了模型的信号接收波形和该模型的多径效应。Aim to the application of smart street lamp and internet of vehicles,a communication model of street lamp based on visible light-emitting diode(LED)is designed.Firstly,the illumination pre-equalization method of LED single channel stability and multi-channel stability is proposed,and the receiving effect is tested.Secondly,according to the installation methods of unilateral,bilateral symmetrical and bilateral asymmetric street lamps,the spatial illumination distribution mathematical models of three kinds of street lamps are constructed and simulated by Lambert model,and the average illumination in the near ground area of the road is analyzed.Finally,the vehicle receiving model of visible light signal and the color division multiplexing(CDM)visible light communication model from LED street lamp to vehicle are designed,and the signal receiving waveform of the model and the multipath effect of the model are analyzed.

关 键 词：可见光通信 智慧路灯 车联网 灯车通信模型 

分 类 号：TN929.12[电子电信—通信与信息系统]