基于脑电分析的连续驾驶疲劳高发时间判断

High-risk period of fatigue in long-time driving based on EEG

采用脑电测试的方法,辅以经过特殊设计的注意力测试手段,以室内模拟的方法,以脑电为基本指标,研究在驾驶过程中最可能出现疲劳的时间.参考经典的脑电指标,分析了12个被试者在时长为3.5h的室内试验中的疲劳曲线,结合注意力评价以及被试者主观监测结果,得出被试者在实验开始之后的100～120min是最容易出现疲劳,注意力分散严重.根据疲劳试验结论以及实验中的其他发现,给出关于驾驶疲劳的有效防治建议.

With the help of electroencephalogram （EEG） and a method specially designed to test the attention of the drivers, an indoor experiment was set to study the time when the driver felt fatigue in continuous driving. Classical EEG index were introduced to analyze the state of 12 samples. Therefore, fatigue-time curves of 3.5 h for all the samples were figured out. Combined with the attention evaluation and the results of subjective monitoring a conclusion was drawn that after driving for 100 min to 120 min, people were most likely to feel fatizue, and it＇s difficult to focus on their attention. Based on the conclusion and other results, effective advice about avoiding driving fatigue was given.