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清华大学学报(自然科学版)  2017, Vol. 57 Issue (7): 763-767    DOI: 10.16511/j.cnki.qhdxxb.2017.25.034
  物理与工程物理 本期目录 | 过刊浏览 | 高级检索 |
张先文1, 张丽岩1, 丁力超2, 魏荣荣2, 王婕1, 唐劲天1
1. 清华大学 工程物理系, 粒子技术与辐射成像教育部重点实验室, 北京 100084;
2. 东北电力大学 自动化工程学院, 吉林 132012
Heartbeat detection based on ballistocardiograms
ZHANG Xianwen1, ZHANG Liyan1, DING Lichao2, WEI Rongrong2, WANG Jie1, TANG Jintian1
1. Key Laboratory Particle & Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
2. School of Automation Engineering, Northeast Dianli University, Jilin 132012, China
全文: PDF(1170 KB)  
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摘要 心冲击信号(ballistocardiogram,BCG)是由心脏搏动和大动脉血液循环引起的人体对外压力的变化,可用于无接触心脏活动检测。该文使用PVDF(polyvinylidene fluoride)压电薄膜,研制心冲击信号-心电信号(electrocardiogram,ECG)联合采集设备,并提出自适应模板匹配算法,基于心冲击信号计算心动周期,实现心率实时检测。采集24名健康成年人信号,对比ECG与BCG在心率检测方面的差异,同时评价算法的有效性。结果表明:BCG和ECG在计算心率方面无显著差异,自适应模板匹配算法查准率达到99.77%,查全率达到99.56%,准确性符合要求。
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关键词 心冲击信号(BCG)心率检测模板匹配    
Abstract:A ballistocardiogram (BCG) unobtrusively records the weight variation caused by the reaction force of blood ejection and blood flow in the aorta. A BCG system was developed to record BCG signals and detect the heart beats in the BCG signal. Data from 24 healthy subjects was collected to investigate the system with simultaneous electrocardiograms (ECG) as a reference. The results show no significant difference between the heartbeats detected by the ECG and BCG system (p=0.95) with the BCG system having a sensitivity of 99.56% and an accuracy of 99.77%.
Key wordsballistocardiogram (BCG)    heartbeat detection    templating method
收稿日期: 2016-03-07      出版日期: 2017-07-15
ZTFLH:  R331  
通讯作者: 唐劲天,研究员,     E-mail:
张先文, 张丽岩, 丁力超, 魏荣荣, 王婕, 唐劲天. 基于心冲击信号的心率检测[J]. 清华大学学报(自然科学版), 2017, 57(7): 763-767.
ZHANG Xianwen, ZHANG Liyan, DING Lichao, WEI Rongrong, WANG Jie, TANG Jintian. Heartbeat detection based on ballistocardiograms. Journal of Tsinghua University(Science and Technology), 2017, 57(7): 763-767.
链接本文:  或
  图1 BCGGECG 联合采集系统框图
  图2 3个不同健康成年人BCG 模板
  图3 模板匹配过程图示
  图4 系统采集到某样本一段BCG 与ECG 信号
  表1 BCG 与ECG 计算心动周期检验结果
  图5 BCG 与ECG 计算得到心动周期对比图
  图6 自适应模板匹配算法计算结果
  表2 24名健康成年人自适应模板匹配算法计算结
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