基于无线传输技术的肉鸡养殖场音频采集系统设计与实现  

Design and Implementation of Audio Collection System for Broiler Farm Based on Wireless Transmission Technology

作　　者：孙志刚 高萌萌 王亚宁 张敏 王国涛[1,2] SUN Zhigang;GAO Mengmeng;WANG Yaning;ZHANG Min;WANG Guotao(School of Electronic Engineering,Heilongjiang University,Harbin 150080,China;Reliability Institute for Electric Apparatus and Electronics,Harbin Institute of Technology,Harbin 150001,China;School of Geography Science and Geomatics Engineering,Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]黑龙江大学电子工程学院,哈尔滨150080 [2]哈尔滨工业大学电器与电子可靠性研究所,哈尔滨150001 [3]苏州科技大学地理科学与测绘工程学院,江苏苏州215009

出　　处：《计算机测量与控制》2022年第5期221-230,共10页Computer Measurement &Control

基　　金：国家自然科学基金(51607059);黑龙江省自然科学基金(QC2017059,JJ2020LH1310);黑龙江省博士后基金(LBH-Z16169);黑龙江省高校基本科研业务费(HDRCCX-201604,2020-KYYWF-1006);黑龙江省教育厅科技成果培育(TSTAU-C2018016);七台河市科技计划项目(20308C);黑龙江大学研究生创新科研项目(YJSCX2021-067HLJU)。

摘　　要：为了有效监测养殖场内肉鸡的健康状况,需要采集现场的音频信号,从中识别出鸣叫声与咳嗽声等生命体征信息,本研究设计了一种基于无线传输技术的肉鸡养殖场音频采集系统;系统由采集终端、无线通信模块与远程服务器组成;无线通信模块作为采集终端与远程服务器之间的通信媒介,用于建立两者之间的Socket连接;远程传输正常时,采集终端工作于定时或实时工作模式,将采集的音频信号经带通与谱减法滤波后发送至远程服务器存储;远程传输异常时,采集终端将不同工作模式下采集与处理的音频信号保存至SD卡存储模块;现场测试表明:采集终端能够根据设定的工作模式进行5 min时长音频信号的采集,采集的音频信号能够在10 s内快速传输至远程服务器保存,滤波前后音频信号的信噪比平均提升幅度为1.862;统计一个月时间内传输与保存的音频信号,得出总丢包率在0.3%以内;该系统为后续肉鸡健康状况监测的研究提供了重要的音频(数据)来源,因而具有较高的实用价值。In order to effectively monitor the health of broilers in the farm,it is necessary to collect live audio signals to identify vital signs information such as chirping and coughing.An audio collection system for broiler farm based on wireless transmission technology is designed in this paper.The system consists of the collection terminal,the wireless communication module and the remote server.The wireless communication module is used as the communication medium to establish a Socket connection between the collection terminal and the remote server.When the remote transmission is normal,the collection terminal works in a timing or real-time working mode,and the collected audio signal is filtered by Bandpass and Spectral Subtraction and sent to the remote server for storage.When the remote transmission is abnormal,the collection terminal saves the audio signals collected and processed in different working modes to the SD card storage module.The test results show that the collection terminal can collect 5 min-long audio signals according to the set working mode.The collected audio signals can be quickly transmitted to the remote server for storage within 10 s.The average increase in signal-to-noise ratio of the audio signals before and after filtering is up to 1.862.Counting the audio signals transmitted and saved within a month,it is concluded that the total packet loss rate is within 0.3%.The system provides an important source of audio(data)for the follow-up study of broiler health monitoring,so it has high practical value.

关 键 词：音频采集 无线传输 Socket连接 带通滤波 谱减法滤波 远程服务器 

分 类 号：TN98[电子电信—信息与通信工程] TP29[自动化与计算机技术—检测技术与自动化装置]