便携式心电信号检测仪的研究

A study of portable ECG signal detectors

针对人体生物医学信号的特点,以ARM处理器LPC2138为核心,结合嵌入式操作系统研究了一种实用的便携式心电信号检测系统。设计了硬件检测电路,将微弱的心电信号进行采集、放大及滤波后提取出来传至ARM处理器进行处理与分析,并将心电波形显示在LCD显示屏上。实验测试表明,该系统能全面实现对心电信号的检测,具有较高的实际应用价值。

Combined with the embedded operating system ,this paper studies a practical portable ECG signal de-tection system,according to the characteristics of human body biomedical signals ,employing the ARM processor LPC2138 as the core. We designed the circuit of hardware detection, and acquired, amplified and filtered the weak ECG signals,then transmitted them to the ARM processor for processing and analyzing. And the ECG waveforms were displayed on the LCD monitor. Experimental results show that this system can fully detect ECG signals and has strong practical application value.