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为了解决目前依靠转向灯识别换道意图时因转向灯开启率低而识别遗漏的问题,探索运用驾驶人在不同任务条件下眼动行为存在的差异来识别换道意图。在真实道路环境条件下进行实车试验,采集了16名驾驶人车辆保持阶段和换道意图阶段的眼动行为数据,运用数理统计方法对比分析驾驶人在不同阶段的基本眼动参数、注意力分配和视觉搜索模式3个方面眼动行为参数。研究结果表明:平均注视时间、平均扫视幅度、车道注意力分配、后视镜注意力分配、仪表盘注意力分配、区域间注视转移概率、水平视觉搜索广度等参数在2个阶段存在显著差异;与车道保持阶段相比,驾驶人在换道意图阶段对目标车道和后视镜的关注明显增加,对当前车道和车内仪表的关注减少,在各注视区域间注视点转移更加灵活,水平方向视觉搜索区域增大。
In order to solve the problem of missing recognition due to the low turning-on rate when the lane-changing intention is recognized by the turn signal, a driver’s intention to identify the lane change is explored by using the difference of the driver’s movement under different tasks. The real vehicle test was carried out under the real road conditions. The eye movement data of 16 drivers during the vehicle maintenance phase and the lane change intent phase were collected. The basic eye movement parameters and attention of the driver at different stages were analyzed by mathematical statistics Distribution and visual search mode 3 aspects of eye movement parameters. The results show that there are significant differences in mean fixation time, average sweep amplitude, lane attention distribution, attention distribution in the mirror, dashboard attention distribution, inter-region gaze transfer probability, horizontal visual search breadth and other parameters in two stages; Compared with the lane keeping phase, the driver’s attention to the target lane and the rear-view mirror obviously increases during the lane change intent phase, the focus on the current lane and the car inner instrument decreases, and the fixation of the fixation point in each focus area is more flexible and horizontal Visual search area increases.