一种基于声波的近场通信系统设计方法  

A Method of Near Field Communication System Based on Acoustic Wave

作　　者：竟振明 黄世震[1] 李宏意 JING Zhen-ining;HUANG Shi-zhen;LI Hong-yi(College of Physics and Information Engineering, Fuzhou University 1 , Fuzhou 350108 , China)

机构地区：[1]福州大学物理与信息工程学院

出　　处：《电气开关》2019年第4期14-18,共5页Electric Switchgear

基　　金：福建省科技厅项目(2017H0017)

摘　　要：为了避开复杂的电磁环境干扰,降低通信的成本,使用声波作为载体进行通信是一种很好的选择。运用JNI编程方式结合OFDM调制方式,再辅以一个特定的正弦波生成函数,设计出了一款可以运行在Android智能手机平台上的声波近场通信系统。实验结果表明,系统在收发双方的距离不超过50 cm时,误码率为零。由此可见,系统在近距离通信时的准确率是可以得到保证的,而且不会受到外界电磁环境的干扰。In order to avoid the complex electromagnetic environment interference and reduce the cost of communication,it is a good choice to use acoustic wave as carrier for communication.A sound wave near field communication system running on the Android smart phone platform is designed by using Java Native Interface programming method combined with Orthogonal Frequency Division Multiplexing modulation method and a specific sound wave generation function.The experimental results show that the Bit Error Rate of the system is zero when the distance between the transmitter and the receiver is not more than 50 cm.It can be seen that the accuracy rate of the system for near field communication can be guaranteed,and the communication will not be disturbed by external electromagnetic environment.

关 键 词：通信 声波 RS码 调制 

分 类 号：TN92[电子电信—通信与信息系统]