基于生理信号分析的不同风格驾驶人疲劳特性  

Fatigue characteristics of drivers with different styles based on physiological signal analysis

作　　者：赵小平[1] 龚俊 万平 莫振龙[1] 马有才 ZHAO Xiaoping;GONG Jun;WAN Ping;MO Zhenlong;MA Youcai(School of Transportation Engineering,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学交通运输工程学院,南昌330013

出　　处：《中国科技论文》2022年第10期1111-1119,共9页China Sciencepaper

基　　金：国家自然科学基金资助项目(52062014);江西省教育厅科学技术研究项目(GJJ180359,GJJ210607)。

摘　　要：为了研究不同驾驶人疲劳驾驶的差异性,从生理角度出发,探究不同驾驶风格驾驶人的疲劳特性。通过k均值聚类将20名被测试驾驶人分为3种驾驶风格(激进型、平稳型和谨慎型),采集驾驶人的心电(electrocardiography,ECG)信号、肌电(electromyography,EMG)信号数据,获取其特征指标并进行单因素方差分析,最终选取ECG信号高频功率(high-frequency,HF)作为疲劳驾驶的表征指标,并基于HF分析结合主观询问、支持向量机(support vector machine,SVM)确定不同风格驾驶人的最优驾驶时间。结果表明:0~80 min时段,激进型驾驶人疲劳积累速度最快,谨慎型驾驶人最慢;80~120 min时段,谨慎型驾驶人疲劳积累速度最快。实验结果验证了采用HF作为驾驶疲劳表征指标的有效性,可为不同驾驶风格驾驶人选择安全驾驶时间提供依据,具有一定的理论指导意义和实际应用价值。In order to study the differences of drivers in fatigue state,the fatigue characteristics of drivers with different driving styles were explored from the physiological point of view.Twenty subjects were divided into three driving styles by k-means clustering method,including aggressive driving style,smooth driving style and cautious driving style.The data of electrocardiography(ECG)and electromyography(EMG)were collected to obtain the characteristic indexes,and the one-way ANOVA was performed.Finally,ECG high-frequency(HF)power was selected as the characterization index of fatigue driving,and the optimal driving time of different styles of drivers was determined based on HF analysis combined with subjective inquiry and support vector machine(SVM).The results show that within 0-80 min,the fatigue accumulation speed of aggressive drivers is the fastest,and that of cautious drivers is the slowest.Within 80-120 min,the fatigue accumulation speed of cautious drivers is the fastest.The experimental results verify the effectiveness of using HF as a driving fatigue characterization index,which can provide a basis for drivers with different driving styles to choose safe driving time,and have a certain theoretical significance and practical application value.

关 键 词：疲劳驾驶积累 驾驶人风格 模拟驾驶实验 驾驶员生理信号 

分 类 号：U491.254[交通运输工程—交通运输规划与管理]