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为定量分析高原地区连续驾驶时间和海拔高度对驾驶员特性的影响,利用biofeedback 2000x-pert生物反馈系统,实地检测高原地区驾驶员连续驾驶时各项生理、心理指标。通过相关性分析,选取相关性最高的心率变异低频成分建立模型。通过回归分析建立连续驾驶时间与LF值的关系模型以及海拔高度与LF的关系模型,最终建立连续驾驶时间、海拔高度、心率变异低频成分三维模型,并通过检验。研究结果表明:海拔高度的增加会加速驾驶员进入疲劳状态,随着年龄的增长,驾驶员受到海拔高度的影响也会变大。
In order to quantitatively analyze the influence of continuous driving time and altitude on the driver’s characteristics in the plateau, biofeedback 2000x-pert biofeedback system was used to detect the physiological and psychological indexes of drivers in continuous driving in the plateau. Through the correlation analysis, we selected the most relevant low frequency component of heart rate variability to establish the model. Through regression analysis, a model of the relationship between continuous driving time and LF value and the relationship model between altitude and LF were established. Finally, a three-dimensional model of continuous driving time, altitude and heart rate variability was established and tested. The results show that: the increase of altitude will accelerate the driver into the state of fatigue, with age, the driver will be affected by the altitude will become larger.