基于LED的可见光短距音频通信系统设计  

Design of visible light short-distance audio communication system based on LED

作　　者：张庭亮[1] 甄倩倩 王义飞 

机构地区：[1]安阳工学院电子信息与电气工程学院,河南安阳455000 [2]安阳师范学院软件学院,河南安阳455000

出　　处：《无线互联科技》2017年第19期5-7,共3页Wireless Internet Technology

摘　　要：文章研究了基于LED的可见光短距音频通信系统设计,发射端采用S9014多级放大及调制,接收端采用光电PIN管检测光亮变化,TDA2030前置放大后,RC二阶低通滤波器对信号进行解调,采用LM386设计音频信号放大器,测试结果表明,系统可以实现短距音频可见光传输。This paper studies the design of visible light short-distance audio communication system based on LED. The transmitter adopts S9014 multi-level amplification and modulation, and the receiver uses photo-diode to detect bright changes. After TDA2030 preamplifier, RC second-order low-pass filter to demodulate the signal, adopts LM386 to design audio signal amplifier. The test results show that the system can achieve short-range audio visible light transmission.

关 键 词：LED 可见光 光短距音频通信 

分 类 号：TN929.1[电子电信—通信与信息系统]