基于PVDF的汽车驾驶员心电呼吸监测系统研究  

Research on PVDF-based electrocardiogram and respiratory monitoring system for automobile drivers

作　　者：曹景胜[1,2] 石晶[1] 李刚[1] 郭银景 单鹏[1,2] CAO Jingsheng;SHI Jing;LI Gang;GUO Yinjing;SHAN Peng(College of Automobile and Traffic Engineering,Liaoning University of Technology,Jinzhou 121001,China;Collaborative Innovation Center for Key Technologies of Automotive and Parts,Liaoning University of Technology,Jinzhou 121001,China;College of Electronic Communication and Physics,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]辽宁工业大学汽车与交通工程学院,辽宁锦州121001 [2]辽宁工业大学汽车及零部件关键技术协同创新中心,辽宁锦州121001 [3]山东科技大学电子通信与物理学院,山东青岛266590

出　　处：《现代电子技术》2019年第10期79-82,87,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(51675257);国家自然科学基金青年基金项目(51305190);辽宁省教育厅重大科技平台项目(JP2016014);辽宁省教育厅重大科技平台项目(JP2016004)~~

摘　　要：汽车驾驶员疲劳驾驶是引发交通事故的重要原因之一,根据心电呼吸等生理参数评估驾驶员疲劳程度成为研究热点。基于PVDF压电薄膜的非接触特性和正压电效应,研究并实现了汽车驾驶员心电呼吸监测系统。硬件部分设计了稳定的信号调理和滤波去噪电路,软件部分构建了准确的心跳和呼吸信号分离算法。测试分析表明,系统能稳定可靠地监测心率和呼吸率,有效地预防疲劳驾驶带来的后果,提高汽车行驶安全性。Fatigue driving of automobile drivers is one of the major causes of traffic accidents,so the driver fatigue degree assessment on the basis of the electrocardiogram(ECG),breathing and other physiological parameters has become a research hotspot.An ECG and respiratory monitoring system for automobile drivers is researched and realized based on the non-contact characteristics and positive piezoelectric effect of the PVDF piezoelectric film.For the hardware part,a stable signal-conditioning and filter-denoising circuit is designed.For the software part,an accurate heartbeat and respiratory signal separation algorithm is constructed.The test analysis results show that the system can stably and reliably monitor the heart rate and respiratory rate,effectively prevent the consequences of fatigue driving,and improve the automobile driving security.

关 键 词：汽车驾驶员 疲劳驾驶 PVDF 心电呼吸 正压电效应 监测系统 

分 类 号：TN931.3-34[电子电信—信号与信息处理] TP23[电子电信—信息与通信工程]