基于可见光通信的图像传输系统  

Image Transmission System Based on Visible Light Communication

作　　者：杨欣华[1] 刘洋[2] 康文炜[2] 刘斌[2] 王兆丹[3] 

机构地区：[1]吉林大学电子科学与工程学院,长春130012 [2]吉林大学通信工程学院,长春130012 [3]空军航空大学飞行教官训练基地,长春130022

出　　处：《吉林大学学报（信息科学版）》2015年第2期120-124,共5页Journal of Jilin University（Information Science Edition）

基　　金：国家自然科学基金青年基金资助项目(61201368)

摘　　要：针对无线图像传输系统抗干扰能力差、保密性低等问题,设计并研制了基于可见光通信的图像传输系统。该系统采用51单片机为主要控制器,以发光二极管发出的高速调制可见光作为信息载体,利用光电二极管接收光载波信号,并通过PC机获得图像信息,实现了基于可见光通信的无线图像传输。实验结果表明,该系统抗电磁干扰能力强、成本低、功耗小、安全性好,在通信距离为0.7 m时,其最大位传输速率为0.1 Mbit/s,误码率小于10-5,有效克服了现有图像无线传输系统的固有问题,是短距离无线通信技术很好的补充,具有很好的应用前景。Because the existing wireless image transmission system has poor anti-interference ability and low confidentiality issues, an image transmission system based on VLC （Visible Light Communication） is designed. 51 processor is used as the main controller, using visible LED （Light Emitting Diode） high-velocity modulation as information carrier, visible light of high-speed modulation emitted from the LED is utilized as information carrier, photodiode is utilized to receive optical carrier signals, the image information is obtained through the PC, wireless image transmission based on visible light communication is realized. The results show that the maximum bit transfer rate of the device is 0.1 Mbit/s when the communication distance is 0.7 m, the BER （ Bit Error Rate） is less than 10-5. The system effectively overcomes the problems inherent in the conventional image transmission system of the wireless, it is a good supplement for short-range wireless communications technology, having a good prospects.

关 键 词：可见光通信 图像传输 白光LED 

分 类 号：TG156[金属学及工艺—热处理]