基于LED可见光的音频通信系统设计

Design of audio communication system based on LED visible light

能够实现室内照明与无线通信双重功能的基于LED的可见光通信技术,因其绿色环保的优势而受到越来越多人的关注。文章研究了一套基于STM32单片机的LED可见光通信的音频通信系统。该系统由发射模块和接收模块组成,通过对发送端LED灯与接收端的距离进行调试,从而对LED可见光通信进行验证。测试结果表明,当传输距离为30~50 cm时,能播放出较好的音质。该系统实现了可见光音频通信的功能,具有很好的实用性。

The visible light communication technology based on LED can realize the dual functions of indoor lighting and wireless communication,which has the advantages of green and environmental protection,so it is concerned by more and more people.This paper studies a set of audio communication system based on STM32 single-chip microcomputer for LED visible light communication.The system consists of transmitting module and receiving module.The system verifies the LED visible light communication by the distance between the sending end led light and the receiving end.The test results show that when the transmission distance is 30~50 cm,good audio quality can be played.The system realizes the function of visible light audio communication and has good practicality.