高海拔公路隧道进口段驾驶人生理特征识别模型研究  

Study of driver’s physiological feature recognition model at the entrance of high altitude highway tunnel

作　　者：张丽改 王兵[1] 李鹏胜 赵越 ZHANG Ligai;WANG Bing;LI Pengsheng;ZHAO Yue(School of Mechanical Engineering,Xinjiang University,Urumqi 830017,China)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830017

出　　处：《西安理工大学学报》2022年第4期570-576,共7页Journal of Xi'an University of Technology

基　　金：新疆维吾尔自治区重大科技专项(2020A03003)。

摘　　要：为研究高海拔高速公路隧道进口段驾驶人生理特征变化规律及主要影响因素,提高高海拔隧道进口段行车安全性,首先,按照刺激因素对驾驶人生理特征的影响程度将高海拔高速公路隧道进口段划分为L_(1)、L_(2)、L_(3),以心率表征驾驶人生理特征,并分别选取车辆距隧道口距离、隧道内照度作为驶入隧道前、后的影响因子;其次,通过实车等效试验,获取车辆位置信息、驾驶人在不同速度下的心率及隧道内照度数据;最后,运用数理统计对比分析了驾驶人在不同路段以不同车速行驶时心率指标的变化规律及差异性,并分别建立了不同车速下驾驶人心率与车辆距隧道口距离(L_(1)+L_(2)段)、心率与照度(L_(3)段)间的回归模型,以探索外部因素对驾驶人生理特征变化的影响程度。结果表明,不同行驶阶段,驾驶人心率存在显著差异,且驾驶人在驶入隧道前400 m至驶入隧道后350 m心率变化最明显;进入隧道前、后,在考虑了初始车速、车辆距隧道口距离与初始车速、照度等因素后,所建立的回归模型为三次曲线模型,且拟合度均较高;不同初始车速下,驾驶人的心率变化不同,当初始车速控制在80 km/h左右时,更有利于驾驶人适应高海拔隧道进口段行车环境。In order to study the variation law and main influencing factors of drivers’physiological characteristics at the entrance section of high-altitude expressway tunnel and improve the driving safety at the entrance section of high-altitude tunnel.Firstly,the entrance section of high-altitude expressway tunnel is divided into L_(1),L_(2) and L_(3) according to the influence of stimulating factors on drivers’physiological characteristics.The physiological characteristics are characterized by the drivers’heart rate,with the distance from the vehicle to the tunnel mouth and the illumination in the tunnel selected as the influencing factor parameters before and after driving into the tunnel.Secondly,through the real vehicle equivalent test the vehicle position information,the driver s heart rate and illumination data in the tunnel at different speeds are obtained.Finally,the change law and difference of heart rate index when drivers drive at different speeds in different sections are compared and analyzed by using mathematical statistics,with the regression models between driver s heart rate and the distance between vehicle and tunnel entrance(L_(1)+L_(2))and heart rate and illumination(L_(3))at different speeds established to explore the influence of external factors on the change of driver s physiological characteristics.The results show that there are significant differences in drivers heart rate at different driving stages,and that the change of heart rate is the most obvious from 400 m before entering the tunnel to 350 m after entering the tunnel.Considering the initial vehicle speed,the distance between the vehicle and the tunnel entrance,the initial vehicle speed and illumination,the regression models are almost cubic curve models,and the fitting degrees are high.The driver s heart rate changes differently at different initial speeds;when the initial speed is controlled at about 80 km/h,it is more conducive for the driver to adapt to the driving environment at the entrance of high-altitude tunnel.

关 键 词：高海拔低氧环境 隧道进口段 驾驶人生理特征 实车等效试验 回归模型 

分 类 号：U458.1[建筑科学—桥梁与隧道工程]