车载用户界面功能卡片位置和展开方式对搜索和操作绩效的影响研究

Research on Usability of In-vehicle Interactive Interface Based on Eye Tracking

目的针对车载交互界面,探索更符合驾驶人查看和操作的功能卡片摆放位置及展开方式。方法实验采用2(功能卡片位置:卡片在左侧/卡片在下方)×2(展开方式:窗口展开/全屏展开)的被试者内实验设计,运用眼动仪对16名被试采集相关眼动追踪数据,因变量为任务完成时间、平均注视持续时间、点击次数、注视次数、总注视时间。结果发现功能卡片位置、功能卡片位置和展开方式的交互作用对驾驶人视觉搜索和操作行为均无显著影响,但展开方式则对驾驶人视觉搜索和操作行为的完成时间有显著影响(方案一和方案二:P<0.001^(***),方案三和方案四:P<0.005^(***)),全屏展开方式能够显著降低任务完成时间。结论研究结果表明,车载交互界面中的功能卡片为全屏展开时,能显著地提高用户搜索和操作效率,从而最大限度地减少认知负荷避免分心,该研究结果能够为车载交互界面设计提供参考。

Objective In order to explore the location and unfolding mode of function cards which are more suitable for drivers to view and operate in the vehicle-mounted interactive interface.Methods A 2(function card position:card on the left/card on the bottom)×2(expansion mode:window expansion/full screen expansion)within-subject experiment was designed,and eye tracking data were collected from 16 subjects by eye tracker.The dependent variables were task completion time,average gaze duration,click times,gaze times and total gaze time.Results The interaction of function card position,function card position and expansion mode has no significant influence on the driver's visual search and operation behavior,but the expansion mode has a significant influence on the completion time of the driver's visual search and operation behavior,and the full-screen expansion mode can significantly reduce the task completion time.Conclusion suggest that when the function cards in the vehicle-mounted interactive interface are unfolded in full screen,it is beneficial to significantly improve the efficiency of users'search and operation.To greatest extent,it reduces cognitive load to avoid distraction.The research results can provide reference for the design of vehicle interactive interface.