【摘要】 目的探讨疲劳情境下驾驶员心电信号和肌电信号的有效特征。方法被试为12名年轻驾驶员,标准刺激为96张不同驾驶情景图片,要求被试连续2.5 h对图片进行按键反应。结果随着疲劳程度的增强,心率变异性呈整体上升趋势,平均功率频率呈下降趋势。结论心率、表面肌电值可以作为测量驾驶员疲劳程度的有效指标,人体的疲劳程度可能不是连续的增加,而是疲劳和清醒交替不断出现。更多还原

【Abstract】 Objective To investigate effective features of Electrocardiogram(ECG) and Electromyography(EMG) of drivers in the fatigue condition.Methods 12 young drivers participated in the experiment.Materials were 96 different pictures in different driving conditions.Participants were asked to press the right keyboard upon seeing the pictures during the 2 and a half hours session.Results The average of heart rate variability(HRV) rises,ACC and mean power frequency(MPF) drop during the fatigue enhancing process.Conclusion HRV and sEMG can be used to assess driver fatigue.Fatigue during driving is not a continuous process but consists of successive episodes of condition where the subject may go in and out of a fatigue state.更多还原