使用压电传感器的心肺音采集系统研究
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摘要
心肺音侦听是一种极为常见的辅助诊疗手段,但传统听诊器存在诸多局限。为了便于心肺音信号的采集、存储、重放以及二次分析,设计了一种高灵敏度、高信噪比、宽频带的电子听诊器。该系统有效地规避了驻极体电子听诊器与传统物理听诊器信噪比低,受环境因素影响较大的缺点,可以实现声音录制、重放及数据分析等,为远程医疗、大数据病理分析等提供了支持。
Cardiopulmonary sound monitoring is a very common universal auxiliary method used for medical diagnosis and treatment,but traditional stethoscopes have many disadvantages.In order to facilitate the acquisition,storage,replay and secondary analysis of heartlung sound signals,an electronic stethoscope is proposed,which owns high-sensitivity,high-signal-to-noise ratio and wide band.This system can effectively avoid the disadvantages of the electret electronic stethoscope and the traditional physical stethoscope,such as the low signal-to-noise ratio and environmentally sensitivity.It can realize different functions of sound recording,sound playback,and data analysis and will provide strong support for telemedicine,big data pathological analysis.
Cardiopulmonary sound monitoring is a very common universal auxiliary method used for medical diagnosis and treatment,but traditional stethoscopes have many disadvantages.In order to facilitate the acquisition,storage,replay and secondary analysis of heartlung sound signals,an electronic stethoscope is proposed,which owns high-sensitivity,high-signal-to-noise ratio and wide band.This system can effectively avoid the disadvantages of the electret electronic stethoscope and the traditional physical stethoscope,such as the low signal-to-noise ratio and environmentally sensitivity.It can realize different functions of sound recording,sound playback,and data analysis and will provide strong support for telemedicine,big data pathological analysis.
引文
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[2]聂冠群,郭秀琴,陈丽,等.听诊器的声学特性研究[J].中国生物医学工程学报,1984(1):32-41.
[3]Johnson J,Hermann D,Witter M,et al.An Ultra-Low Power Subband-Based Electronic Stethoscope[C]//IEEE International Conference on Acoustics,2006.
[4]黄梅,刘洪英,皮喜田,等.便携式低功耗电子听诊器设计[J].传感器与微系统,2017,36(10):77-79,84.
[5]王续博,张国军,郭楠,等.MEMS电子听诊器微结构设计与验证[J].微纳电子技术,2016,53(1):31-35.
[6]杨继森,江中伟,许强.基于AD9959与STM32F4的时栅位移传感器电气系统设计[J].传感技术学报,2013,26(8):1050-1054.
[7]任磊,杜一,马帅,等.大数据可视分析综述[J].软件学报,2014,25(9):1909-1936.
[8]许培海,黄匡时.我国健康医疗大数据的现状、问题及对策[J].中国数字医学,2017,12(5):24-26.
[9]Redlarski G,Gradolewski D,Palkowski A.A system for heart sounds classification[J].Plos One,2014,9(11):e112673.
[10]丁贝贝,吴先梅,韩星晨,等.PVDF压电薄膜传感特性研究[J].压电与声光,2018,40(2):170-173.
[11]杨力.D类音频功率放大器的研究与设计[D].成都:电子科技大学,2016.
[12]宋军,赵明忠.一种分析和设计抗混叠滤波器的方法[J].现代电子技术,2008(19):67-68,71.
[13]李驰,丛培田,段智敏,等.基于自适应采样频率与AD7606的振动信号采集方法[J].仪表技术与传感器,2017(7):116-120.
[14]Analog Devices,Inc.AD7706/AD7606-4/AD7606-4Manual,2010.
[15]O′Flaherty N,Fenelon L.The stethoscope and healthcare-associated infection:a snake in the grass or innocent bystander[J].Journal of Hospital Infection,2015,91(1):1-7.
[16]Gupta R,Bera J N,Mitra M.Development of an embedded system and MATLAB-based GUI for online acquisition and analysis of ECG signal[J].Measurement,2010,43(9):1119-1126.