摘要
驾驶疲劳影响驾驶员的警觉度和注意能力,同时严重影响道路交通安全。该文在实验室驾驶平台中模拟疲劳驾驶的基础上,提出了一种评估驾驶过程中大脑工作负荷的方法。实验结果表明,当大脑工作负荷较小时,在theta频段左前额高电势微状态出现的频率升高;当大脑工作负荷较大时频率降低。以此为指标,可以对驾驶员的放松和警觉状态进行检测。
Driver fatigue affects driver＇s vigilance and attention, also seriously influence road safety. Through driving simulation, and analyze EEG base on microstates segmentation method, we found a way to measure the mental workload of drivers. The result of the experiment shows that, when mental workload is lower, the frequency of occurrence of microstates which has high potential on left prefrontal cortex in theta bond will be higher, also, when mental workload is higher, the frequency will be lower. This measurement can be used to detect the state of relax or vigilance of drivers in real time.
出处
《杭州电子科技大学学报（自然科学版）》
2014年第4期23-26,共4页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
国家自然科学基金资助项目(61102028)
浙江省自然科学基金资助项目(LY13F020049)
浙江省重大科技专项重点国际合作研究资助项目(2011C14017)
关键词
疲劳驾驶
脑电信号
微状态
工作负荷
fatigue driving
electroencephalograph
microstates
workload
