During the human-vehicle co-driving processes, driver's emotional changes would lead to cognitive changes, which in turn altered the vehicle risk field. Therefore, a human factor risk field model was constructed considering driver's cognitive-emotional state. Firstly, vehicle driving data and driver physiological signals were collected and analyzed through driving simulator experiments. Then, the driver factors in the human factor risk field were calibrated. Finally, experimental data were collected through a 6-DOF driving simulator, and the risk indicators of the human factor risk field were compared with multiple traditional risk indicators. The results show that the human factor risk field model is more effective and may evaluate the driving risks of drivers stably with different emotions in edge scenarios.
采用驾驶场景搭建软件搭建各工况驾驶场景,并外接G29罗技驾驶模拟器实现驾驶员在环实验。采集设定场景下的车辆行驶数据,采用北京津发科技股份有限公司提供的ErgoLAB人机环境同步平台V3.0进行实验。采用ErgoLAB可穿戴无线生理仪器采集并记录实验驾驶员的脑电和心电信号,采用Tobii Pro Glass3眼动仪记录驾驶过程中的驾驶员眼动数据。
驾驶员的驾驶能力决定了遭遇突发边缘场景时,能否作出正确的安全驾驶决策,直接影响行车风险。本研究选取心率均值(average heart rate, AVHR)、正常窦律RR间期的标准差(standard deviation of all normal to normal RR intervals, SDNN)、相邻RR间期差值的均方根(root mean square of successive differences between adjacent RR intervals, RMSSD)作为心电信号分析指标。
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