车联网信息对驾驶员视觉注意的影响研究

Research on influence of IoV information on drivers′visual attention

为研究车联网环境下不同信息提供方式对驾驶行为的影响,设计了基于模拟驾驶的车联网环境,并开展模拟驾驶实验,采集了4个场景下车辆的运行数据。通过绘制视觉注视点在前方区域的聚集分布图和计算视觉注视点的分心百分比,得到了不同分心任务时驾驶人视觉的关注点和分心程度;通过分析驾驶人的视线扫视特征,得到驾驶人在视觉分心时的眼动特征。对比分析了查阅文字消息和语音消息的视觉分心程度和视线扫视特征。实验数据表明,听觉的信息提供方式比视觉的方式对驾驶员视觉注意的影响小。

In order to study the impact of different information provision methods on the driving behaviors in the environment of Internet of Vehicles(IoV),an environment of IoV based on simulated driving is designed.In addition,simulated driving experiments were carried out to collect vehicle operation data in four scenarios.The driver′s visual attention points and degree of distraction during different distraction tasks are obtained by drawing the distribution map of visual fixation points in the front area and calculating the distraction percentage of visual fixation points.The driver′s eye movement characteristics in visual distraction is obtained by analyzing the driver′s sight scanning characteristics.The visual distraction and gaze scanning characteristics of text messages and voice messages were contrasted and analyzed.The experimental data show that the auditory information provision method has less impact on the driver′s visual attention than the visual information provision method.