摘要
采用驾驶模拟实验,验证了声音刺激作为驾驶疲劳对策的有效性。通过声强、声频、持续时间和持续间隔4个因素合成不同类型的声音刺激源。选择容易出现驾驶疲劳的单调性场景和中午时分进行实验,采用眼动和驾驶员的面部特征作为驾驶疲劳的评价标准,当疲劳现象出现后启动声音刺激,分析不同类型的声音刺激前、后的脑电、心电、眼动等生理指标和驾驶操作水平的变化规律。结果表明:驾驶员在疲劳状态下,对单一声音刺激存在警觉反应,但刺激的效果不能持久,在声音刺激之后仅仅能够维持几分钟。同时发现声音类型对刺激的效果有显著影响。因此,需要进一步分析声音的各个因素对驾驶疲劳指标的影响程度,构建持续警觉的组合声音作为有效的驾驶疲劳对策。
A driving simulator experiment was carried out to validate the effect of the environmental sound as a fatigue countermeasure.Various types of the simulating sound rource were synthesized by different intensities,frequencies,and durations of sound.The monotonow scene at midday was chosen to do experiment because of initiating easily the fatigue symplom.The eye movement and the other facial features were used as the criteria for fatigue judgement.The sound stimuli were given as the fatigue symptom appeared,and the variations of the driver physiological signals including the electroencephalogram,the electwcardiogram,and the eye movement and his driving performance were analyzed before and during the sound stimulation.The results showed the alerting reaction exists for the monotonous sound stimulation when the driver is in the fatigue state,but the alert only lasts for a few minutes.The type of the stimulating sound affects significantly on the result of stimulation. Therefore,it is necessary to further study the effects of various factors of the sound against the driving fatigue and establish a lasting,alerting sound combination as an effective driving fatigul countermeasure.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2010年第6期1533-1537,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
08科研基地-北京市教委科技创新平台项目(JJ004011200803)
交通部西部交通建设科技项目(200731800027)
关键词
交通运输安全工程
驾驶疲劳
声音刺激
驾驶模拟
生理指标
驾驶操作
engineering of communications and transportation safety
driving fatigue
sound stimulus
driving simulator
physiological indicator
driving performance
