生物医学工程研究2026，Vol.45Issue(4)：326-332,7.DOI:10.19529/j.cnki.1672-6278.2026.04.09
基于国产芯片的可穿戴式电子听诊器的设计与实现
Design and implementation of a wearable electronic stethoscope based on domestic chip
摘要
Abstract
To address the issues of insufficient noise reduction capability of traditional portable electronic stethoscopes,the inabili-ty to be worn for long periods and mostly adopting imported chips,we designed a wearable electronic stethoscope based on domestic chip.Firstly,used domestic chip as the core components,it integrated functions such as local SD card storage,bluetooth wireless com-munication and real-time display of device status,enabling file storage and upload.Then,a noise reduction algorithm based on spectral subtraction and the complete ensemble empirical mode decomposition with adaptive noise(CEEMDAN)algorithm was developed for heart sounds,respiratory sounds and system characteristics.In this study,heart sounds and respiratory sounds were collected from the bilateral chests of 10 healthy subjects,and the measurement results of this device were compared and analyzed with those of commercial devices.The experimental results showed that the device could continuously record for 5 h.According to Bland-Altman analysis,the device demonstrated 95%agreement with comercial device in heart rate and respiratory rate measurements.This device has the advanta-ges of portability,low power consumption and noise reduction,can provide raw data support for related teaching and research.关键词
电子听诊器/国产芯片/便携式系统/音频采集/降噪算法Key words
Electronic stethoscope/Domestic chip/Portable system/Audio acquisition/Noise reduction algorithm分类
医药卫生引用本文复制引用
李宇轩,韦锋,李翔,沈洪姑莫,陈锘,米峰南,邱占军,陈建刚..基于国产芯片的可穿戴式电子听诊器的设计与实现[J].生物医学工程研究,2026,45(4):326-332,7.基金项目
上海市科委项目(22DZ2229004,22JC1403603,21Y11902500) （22DZ2229004,22JC1403603,21Y11902500）
浙江省科技厅"尖兵领雁"重点攻关研发项目(2024C03240) （2024C03240）
吉林省科技发展计划项目(20230204094YY) （20230204094YY）
2022年度教育部"春晖计划"合作科研项目. （）
