长时间单调模拟驾驶对疲劳的影响研究

通过模拟驾驶实验,综合评估长时间驾驶以及单调环境对驾驶员疲劳程度的影响是笔者研究的主要课题内容。借助于在模拟驾驶座舱上,4个健康样本分别参加高速公路(单调环境)和一般公路(非单调环境)的两组驾驶仿真实验,每组测试均持续两小时,一共进行10次实验。实验过程中,样本的操控数据(车速和方向盘转角)、反应时间、心电信号、主观疲劳状况等都同步记录并保存。实验结果表明长时间驾驶对操控能力、反应时间、心率、主观疲劳都有显著性影响(p<0.050),单调环境(高速公路)和非单调环境(一般公路)相比,车速方差区别显著,而尽管被试在高速公路的单调环境下驾驶后主观感觉更疲劳一些,但反应时间、心率等因素并没有显著性差异。

Study on the Effect of Long-duration Driving and Monotonous Environment on Driver's Fatigue Based on Simulation

This paper focuses on the study of the effect of long-duration driving and monotonous environment on driver's fatigue by simulation. In this study, four healthy persons as the subjects respectively participated in two simulated drive tests by sitting in a simulated cockpit, one test was simulated in high way ( namely monotonous environment), and the other in an ordinary road (namely non-monotonous environment), each of which lasted for two hours. Ten experiments were totally performed for each subject. During the experiments, the driving performance data, reaction time, electrocardiogram, Stanford Sleepiness Scale (SSS) scores of drivers were simultaneously recorded and saved. Result revealed that the driving duration had a significant effect on drivers' performance, response time, heart rate, and SSS score. Comparing the result in monotonous environment with that in non-monotonous environment, standard deviations of speed varied significantly, and the subjects felt more tired in monotonous environment than that in non-monotonous environment. However, other factors such as reaction time and heart rate did not differ significantly.