基于生物反馈试验的高原公路驾驶员生理变化特性研究

发布时间：2018-04-16 09:06

本文选题：高原环境 + 海拔高度　；参考：《新疆农业大学》2015年硕士论文

【摘要】：高原地区公路具有含氧量低、道路景观单一、道路线性复杂以及险峻等特点。高原低氧环境会使吸入气氧气压下降而引起人体的低氧血症,这势必会造成高原公路驾驶员行驶时生理和心理上的变化,进而通过影响驾驶操作能力带来安全隐患。本文通过在位于帕米尔高原上的G314线喀什至红其拉甫段进行的实地驾驶检测试验,分析海拔高度、连续驾驶时间及行车速度对驾驶员各项生理特性的影响。利用偏相关分析,分析了检测得到的被试驾驶员各项生理指标与海拔高度、连续驾驶时间、行车速度等高原公路影响因子的关系,排除了行车速度对驾驶员生理指标的影响。利用SPSS对各生理指标和海拔高度及连续驾驶时间进行相关性分析,分析结果表明：心率和脑电两项生理指标与海拔及连续驾驶时间相关性最高,可以进行后续变化趋势分析及模型的建立；而肌电、皮肤电传导水平、血容振幅、体动强度与影响因素间的相关性普遍较低,故未再进行深入分析。在心率相关指标变化趋势分析中,心率变异指标SDNN、LF、LF/HF值均呈现一定程度的上升趋势,HF值呈现下降趋势,说明各样本都出现了不同程度的疲劳。在脑电相关指标变化趋势分析中,上行时各样本脑电波都随着海拔高度的增加以及连续驾驶时间的增长有增长趋势,说明在高原环境上行时驾驶员疲劳程度加深。下行时各样本脑电波都随着海拔高度的减小以及连续驾驶时间的增长有增长趋势,但增长趋势没有上行时各样本的增长趋势明显。这说明下行时随着海拔高度的减小以及连续驾驶时间的增长,驾驶员疲劳程度加深,但是没有上行时加深的速度快,海拔高度的减小可以延迟驾驶员疲劳程度的加深。
[Abstract]:The highway in plateau area has the characteristics of low oxygen content, single road landscape, complex linear road and precipitous road.The hypoxia environment at high altitude will reduce the oxygen pressure of inhaled air and cause human hypoxemia, which will inevitably cause physiological and psychological changes in driving of plateau highway drivers, and then bring about hidden dangers of safety through affecting driving ability.In this paper, the effects of altitude, continuous driving time and driving speed on the physiological characteristics of drivers are analyzed by the field driving tests conducted in the section from Kashi to Hongqilafu on the G314 line on the Pamir Plateau.Based on the partial correlation analysis, the relationship between the physiological indexes of the tested drivers and the altitude, continuous driving time, driving speed and other factors of plateau highway was analyzed, and the influence of driving speed on the drivers' physiological indexes was excluded.SPSS was used to analyze the correlation among physiological indexes, altitude and continuous driving time. The results showed that heart rate and EEG had the highest correlation with altitude and continuous driving time.But the correlation between electromyography, skin electrical conduction level, blood volume amplitude, body dynamic intensity and influencing factors is generally low, so no further in-depth analysis has been carried out.In the trend analysis of heart rate related indexes, the index of heart rate variability (SDNN) LFN / LFHF showed an increasing trend to a certain extent and the HF value showed a downward trend, indicating that all samples had different degrees of fatigue.In the analysis of the change trend of EEG related indexes, the EEG waves of each sample increased with the increase of altitude and the continuous driving time, which indicated that the fatigue degree of drivers increased in the uplink of plateau environment.The brain waves of each sample have an increasing trend with the decrease of altitude and the increase of continuous driving time, but the growth trend of each sample is not obvious when the upward trend is not the same as that of the sample with the decrease of altitude and the increase of continuous driving time.This indicates that the fatigue degree of the driver deepens with the decrease of altitude and the increase of continuous driving time, but the speed of deepening is not fast when the altitude is not ascending, and the decrease of altitude can delay the deepening of fatigue degree of driver.
【学位授予单位】：新疆农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.25

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