【作者】 王恩美； 范鑫； 李春胜； 王宏；

【Author】 Wang Enmei Fan Xin Li Chunsheng Wang Hong (Institute of Biomedical Engineering, Northeastern University, Shenyang 110006)

【机构】 东北大学生物医学工程研究所；

【摘要】 本文内容主要包括应用单片机构成的心电信号的采集系统和心电图QRS波检测及心率测定、分析系统。硬件设计采用胸部双导联输入,用89C51作为处理器,包括模拟和数字两部分。软件设计采用差分阈值算法来检测QRS波并测得心率,该算法以斜率和幅度为基础。更多还原

【Abstract】 The design mainly includes two parts : hardware design and software design. The hardware design includes an analog circuit and a digital one, adopts two electrodes on the chest and uses single chip micsooco (SCM) 89C51 as main processor to acquire the electrocardiogram (ECG) signal. The software design detects QRS wave, which is based on differential value of ECG signals and the threshold of amplitude and slope. We succeed to sample the ECG signal data and to draw the ECG. At the same time we detect the heart rate.更多还原