基于STM32的便携式家用心电检测仪的设计  

Design of a portable ECG detecting instrument based on STM32

作　　者：陈颖昭[1,2] 高跃明[3,2] 甘振华[2] 李仁贵[2] 李秀翔[3,2] 杜民[2] 

机构地区：[1]福州大学电气工程与自动化学院,福建福州350000 [2]福建省医疗器械和医药技术重点实验室,福建福州350000 [3]福州大学物理与信息工程学院,福建福州350000

出　　处：《电子技术应用》2013年第9期18-20,共3页Application of Electronic Technique

基　　金：福建省科技计划重点项目(2010I0017);福建省自然科学基金(2011J05077)

摘　　要：设计了一种基于STM32的便携式家用心电检测仪。心电电极采集体表单导联心电信号,经预处理电路对心电信号进行放大、滤波和电平抬升后,送至STM32中进行模/数转换和数字处理,在液晶屏上实时显示心电波形、心率和分析结果。实验表明,该心电仪能有效提取心电信号的特征点,准确测得心率,分析出4种常见心率失常症状,并可测得HRV的时域参数。A portable ECG detecting instrument based on STM32 was designed. Through the single lead, the instrument could acquire ECG signal from the body surface. After amplification, digital filtering and level elevation by preprocessing circuit, the ECG signal was sent to the STM32 for analog-digital conversion and digital processing. The heart rate, ECG waveform and analysis resuits were displayed in real-time on the LCD screen of the instrument. Experiment results showed that this system could effectively extract the feature points of ECG signal, accurately measure heart rate, analyze four kinds of common arrhythmia, and measure time-domain parameters of HRV.

关 键 词：STM32 动态差分-斜率阈值 心律失常分析 HRV时域分析 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]