摘要
从危险感知机理的角度出发,对适应驾驶员疲劳状态的碰撞预警系统进行研究,分析在预警时机和预警方式上所应遵循的设计原则。基于信号检测理论的研究结果表明,驾驶员在判别危险时,随着疲劳程度的加深,驾驶员在态度上变得越来越保守,而进入非常疲劳状态后,其危险判别的能力也明显下降。因此碰撞预警在设计策略上应根据危险感知与疲劳程度的量化关系将预警时机进行适当提前,而在预警方式上则应尽量采用组合式的预警信号,着重提高可理解性。
From the angle of driver＇s hazard perception mechanism, the collision warning system adapted to driver＇s drowsiness state is studied and the design principles for warning timing and ways of warning are analyzed. The results of study based on signal detection theory show that when driver makes judgment on hazard, with the deepening of drowsiness extent, driver＇s attitude becomes more and more conservative, and when entering into deep drowsy state, driver＇s hazard judgment ability also significantly lowers. Therefore, in devising collision warning, the warning timing should reasonably advances according to the quantitative relationship between hazard perception and drowsiness extent, and for the way of warning, the combinations of different warning signals should be adopted, put- ting emphasis on comprehensibility.
出处
《汽车工程》
EI
CSCD
北大核心
2016年第4期429-434,共6页
Automotive Engineering
基金
国家自然科学基金(51405438)资助
关键词
驾驶员疲劳状态
碰撞预警
信号检测理论
感知机理
预警策略
driver drowsiness
collision warning
signal detection theory
perception mechanism
warning strategy
