生物医学工程研究2026，Vol.45Issue(4)：273-281,9.DOI:10.19529/j.cnki.1672-6278.2026.04.02
基于STM32的便携式心电信号采集设备
The portable electrocardiogram signal acquisition device based on STM32
摘要
Abstract
To address the limitations of traditional electrocardiogram devices,such as bulky size,complex operation,and poor e-lectrocardiogram signal quality,we proposed a portable electrocardiogram signal acquisition device based on the STM32 microcontroller.The device employed the ADS1292R analog front-end chip for electrocardiogram signal acquisition,and utilized the SPI communication protocol for data transmission.To mitigate interference and noise,a 50 Hz notch filter was designed to suppress power-line interfer-ence,a FIR low-pass filter with a 100 Hz cutoff frequency was implemented to eliminate high-frequency electromyogram noise,and wavelet transform was applied to remove low-frequency electromyogram noise and baseline drift.The processed electrocardiogram data was wirelessly transmitted to a host computer via a Bluetooth module for real-time visualization.The results indicated that the relative errors of measured heart rate and R-R intervals was consistently below 2%.After filtering,the signal-to-noise ratio was 21.20 dB,noise interference was effectively suppressed,and features such as P waves,QRS complexes and T waves were clearly visible.This compact,portable device can support daily electrocardiogram monitoring,and play a significant role in preventing and monitoring cardi-ovascular health.关键词
心电信号采集/STM32 单片机/便携/ADS1292R/蓝牙传输/数字滤波Key words
Electrocardiogram signal acquisition/STM32 microcontroller/Portable/ADS1292R/Bluetooth transmission/Digital filtering分类
医药卫生引用本文复制引用
李阿标,黄海洋,赵树林,王昌,任武,于毅,范晓峰..基于STM32的便携式心电信号采集设备[J].生物医学工程研究,2026,45(4):273-281,9.基金项目
河南省高等学校重点科研项目(26B416002). （26B416002）
