可穿戴式非接触心率监测传感器及心率异常分析研究

项目名称： 可穿戴式非接触心率监测传感器及心率异常分析研究

项目编号： No.61302033

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 陈贤祥

作者单位： 中国科学院电子学研究所

项目金额： 26万元

中文摘要： 心脏病的发病有很大的偶然性和突发性，基于心电RR间期的实时逐拍心率监测与心率异常分析是研究和预测心脏病的重要手段。当前用于动态心率监测的心电电极都是Ag/AgCl 湿电极，具有准备时间长，长时间监测时存在皮肤敏感不适，电极干燥影响监测精度等问题。本课题提出一种新型的具有集成有源敏感干电极的非接触式实时逐迫心率监测方案，并在线实时进行心率异常分析，探索为心脏猝死等心血管疾病的监测与预警提供有效手段。心率监测传感器电极与皮肤之间通过电容耦合，具有准备时间短、可重复使用、可长期可靠监测、舒适度高等优点。本课题研究的非接触式实时心率监测传感器，通过在敏感电极的表面增加缓冲层控制局部湿度环境的方法，大大降低由于摩擦引起的静电干扰对心率监测的影响；通过输入电容抵消结构，减小由于电极位移引起的系统增益变化造成的基线漂移和伪迹干扰；通过结合运动状态在线计算心率采集的可靠因子，降低心率超限报警的误警率。

中文关键词： 穿戴式；心率监测；心率异常分析；特征提取；非接触

英文摘要： Cardiac disease have the characteristics of chanciness and paroxysmal，so the long time detection and analysis of ECG signals are indispensable. Heart Rate Variability (HRV) analysis based on RR interval of ECG signal is of paramount importance in study and predicts heart disease. Heart rate detection and Heart Rate Variability Analysis is an easy and valuable measure to study and predict heart disease. Currently, the ambulant heart rate sensor based on ECG signals are detected with wet electrodes of Ag/AgCl, which has the disadvantage of long preparation time, discomfort and accuracy decrease with the drying of the electrolyte. A new kind of non-contact heart rate sensor and real time HRV analysis system were proposed in this project, the sensor has integrated active electrodes and the ECG signal is detected through the capacitive coupling between the skin and active electrodes. This new ECG heart rate sensor has the advantage of short preparation time, long time reliable detection, repeating use and eliminating of the wet electrolyte etc. A new kind of sensing dry electrodes will be studied in detail; the static noise engendered by the friction will decrease dramatically with a new cushion layer on the sensing electrodes, which can control the local humidity around the electrodes. A new kind of input capacitanc

英文关键词： Wearable；Heart rate monitoring；Heart rate variability analysis；Feature extraction；Non-contact