基于HRV的北方林区冰雪道路驾驶疲劳分析  

Analysis of driver fatigue on snow-covered road in north forest region based on HRV

作　　者：李航天[1] 朱守林[1] 戚春华[1] 高明星[1] 杨锋[1] 

机构地区：[1]内蒙古农业大学能源与交通工程学院,内蒙古呼和浩特010018

出　　处：《中国安全科学学报》2016年第9期25-29,共5页China Safety Science Journal

基　　金：国家自然科学基金(51168036);高等学校博士学科点专项科研基金(20101515110008)

摘　　要：为提高林区冰雪道路行车安全性,探讨林区冰雪道路驾驶员心理与生理疲劳状态,针对东北林区冰雪道路环境特殊性,通过实驾试验采集驾驶员的心电信号,基于心率变异性(HRV)指标的有效定量评价,结合指标间的灰色关联度分析,研究东北林区冰雪道路环境下驾驶员的心率(HR)、R-R间期标准偏差(SDNN)、低频与高频比值(LF/HF)及相关维数(D2)4个指标值间的变化规律及其随时间的变化规律。结果表明,驾驶员在林区冰雪道路驾驶过程中,HRV指标与HR关联次序为SDNN,D2,LF/HF,驾驶员在林区冰雪道路行车初期驾驶员紧张程度大;连续行车驾驶员精神负荷与体力负荷都会增大,出现疲劳累积效应。To enhance safety of driving on the snow-covered road in the north-forest,the psychological fatigue and physiological fatigue of the drivers were studied experimentally. Electrocardiograph signals were collected. Driver＇s heart rate, standard deviation R-R, ratio of low frequency to high frequency and D2 index were studied for their dependence on time and on each other. The results show that there is a correlation order of SDNN, D2, and LF/HF between indicators of HRV and HR, that driver＇s tension degree is high in the initial stage of driving on the snow-covered road, and that driver＇s mental and physical loads will be enlarged with continuous driving, and a fatigue accumulative effect will appear.

关 键 词：东北林区道路 冰雪路面 心率变异性(HRV) 工作负荷 驾驶疲劳 行车安全 

分 类 号：X912[环境科学与工程—安全科学]