基于JAVA手机便携式心电监护分析仪的ECG信号采集模块设计

摘要

目的:设计一种基于JAVA手机的便携式心电监护仪的心电信号采集模块.方法:心电采集模块采用低功耗51单片机为控制核心,通过心电信号的采集、放大、滤波、A/D转换以及红外通讯接口5个模块,实现心电信号的采集及与JAVA移动手机之间的通信.结果:设计的采集模块具有高输入阻抗、高共模抑制比、低噪声、增益可控等优点,可实现心电信号无失真采集和与手机间进行红外线通信.结论:该心电信号采集模块成本低、体积小、耗电少,适合患者自身携带和医务工作者使用.%Objective To design an ECG(electrocardiogram) acquisition module of JAVA cell phone-based portable ECG monitoring analyzer. Methods The functions of this acquisition module included ECC signal collecting, amplifying, filtering, A/D conversion and infrared data communication, which were controlled by the low-power-consumed 51 series microcontroller and achieved the ECG signal collation and communication with JAVA cell phone. Results This module showed the features of high input impedance, high common mode rejection ratio(CMRR) lower noise and controllable amplifying multiple, which could achieve the functions of ECG distortion-free collection and infrared data communication with telephone. Conclusion The system has the advantages of lower cost, small volume, low power consumption and being easy to carry .