短时应用心率变异性分析系统  

A Heart Rate Variability Analysis System for Short-term Applications

作　　者：石波[1] 陈法圣 张根选[1] 曹明娜[1] 曹阳 

机构地区：[1]蚌埠医学院医学影像学系,蚌埠233030 [2]中国矿业大学(北京)机电与信息工程学院,北京100083 [3]深圳迪美泰数字医学技术有限公司,深圳518067

出　　处：《生物医学工程学杂志》2015年第4期767-772,共6页Journal of Biomedical Engineering

摘　　要：本文设计了一种短时(5min)应用心率变异性(HRV)的分析系统,主要由心电采集模块(ECGAU)和HRV分析模块(HRVAU)两个部分组成。ECGAU采用低倍数放大、高分辨率模数转换、数字滤波和无线传输等技术,具有抗干扰能力强、体积小、重量轻、方便携带等特征;HRVAU主要是基于Matlab平台完成R波的检测以及HRV时域、频域和非线性指标的分析。初步验证结果表明,本系统性能可靠,可以用于静息、运动等多种状态下的短时HRV分析。In this paper, a heart rate variability analysis system is presented for short-term （5 min） applications, which is composed of an electrocardiogram signal acquisition unit and a heart rate variability analysis unit. The electrocardiogram signal acquisition unit adopts various digital technologies, including the low-gain amplifier, the highresolution analog-digital converter, the real-time digital filter and wireless transmission etc. Meanwhile, it has the advantages of strong anti-interference capacity, small size, light weight, and good portability. The heart rate variability analysis unit is used to complete the R-wave detection and the analyses of time domain, frequency domain and non-linear indexes, based on the Matlab Toolbox. The preliminary experiments demonstrated that the system was re- liable, and could be applied to the heart rate variability analysis at resting, motion states, etc.

关 键 词：心率变异性 短时 心电图 

分 类 号：TH789[机械工程—仪器科学与技术]