摘要
设计了一种移动声源定位系统,采用三角视差结合声强比较法原理,通过声音传感器接收声源声波,利用嵌入式LCD显示屏上显示声强信号,根据分贝值和偏转角对声源自动追踪。相较于其他声源需要特定脉冲声源的定位装置,本装置传感器可适用于任何声源。此外,本系统通过嵌入式声音传感器硬件滤波和软件均值滤波来减弱外界噪音干扰,提高系统的定位精度。该系统硬件结构稳定、易于实现,便于高校实验室自制。
A mobile sound source positioning system is designed,which uses the principle of triangular parallax combined with sound intensity comparison method,receives sound source sound waves through sound sensors,displays sound intensity signals on embedded LCD displays,and automatically tracks sound sources according to decibel values and deflection angles.Compared to other sound sources that require a specific pulsed sound source positioning device,this device sensor can be used with any sound source.In addition,the system uses embedded sound sensor hardware filtering and software average filtering to reduce external noise interference and improve the positioning accuracy of the system.The hardware structure of the system is stable and easy to implement,which is convenient for university laboratories to make themselves.
作者
宋思成
刘雨轩
黄佳伦
黄博文
祁书宁
杨一博
闵锐
邓罡
SONG Sicheng;LIU Yuxuan;HUANG Jialun;HUANG Bowen;QI Shuning;YANG YibO;MIN Rui;DENG Gang(Faculty of Science,Hubei University of Technology,Wuhan 430000,China;School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430000,China;Detroit Institute of Green Industry,Hubei University of Technology,Wuhan 430000,China)
出处
《大学物理实验》
2023年第4期101-106,共6页
Physical Experiment of College
基金
国家自然科学基金(11605050)。
关键词
移动定位
三角视差结合声强比较法
自动追踪
嵌入式系统
mobile positioning
trigonometric parallax combined with sound intensity comparison
automatic tracking
embedded systems
