为研究平视显示器(head up display,HUD)字符颜色对飞行员进行HUD和下视显示器(head down display,HDD)切换时观察信息的认知和扫视流畅性的影响,基于前期关于显示器字符颜色、认知绩效和扫视流畅性的相关研究,开展颜色编码对HUD和HDD相容性影响的评估.设计眼动测量实验,通过模拟仿真平台,让20名被试驾驶模拟机完成进近过程,同时记录被试进行HUD和HDD仪表切换后在HUD界面的眼动数据,且在实验的过程中要求被试又快又准地回答有关仪表信息的提问.相同的飞行任务和实验条件下,当HUD使用不同颜色编码时,被试进行显示器切换后,注视轨迹、注视时间、瞳孔直径和反应时的主效应显著,且不同颜色编码间存在显著性差异;采用绿色时效果最佳,青色编码次之,蓝色和黄色效果最差,说明HUD字符的颜色编码设计对HUD和HDD相容性有显著影响.当颜色色相趋于缓和,视觉刺激较弱时,飞行员进行显示器切换后扫视模式较好,认知绩效水平得到提升,即HUD和HDD相容性较好.反之,则容易引起飞行员的紧张情绪,降低认知绩效,扫视轨迹混乱,搜集信息时视线的流畅性受阻.%In order to study the effect of the HUD ( head up display ) character color on the perception of the observation information and the fluent smoothness of the pilot when the pilot switches between HUD and HDD ( head down display ) .Based on previous studies on display character color , cognitive performance and saccade flu-ency , the effect of color coding on the compatibility of HUD and HDD was evaluated .Through the simulation plat-form, the eye movement measurement experiment was designed .20 subjects were allowed to complete the approach process by simulating the driving simulator .Meanwhile , the eye movement data of the HUD interface during and af-ter the HUD and HDD instrument switching were recorded .During the experiment , Subjects were asked to answer questions about the information of inquiry instrument .Under the same mission and experimental conditions , when the HUD were coded in different colors , the main effects of gaze trajectory , fixation time, pupil diameter and re-sponse were significant after the subjects switched the display , and there was a significant difference between differ-ent color codes .There were significant differences; the green effect is the best , the second encoding cyan , blue and yellow have the worst effect , that means the color coding of HUD characters have significant effects on HUD and HDD compatibility .When the hue of color tends to be alleviated and the visual stimulus is weak , the pilot's glance mode is better after switching the display , and the level of cognitive performance is improved .That is the compatibility of HUD and HDD is better .On the contrary, it is easy to cause the tension of the pilots , reduce cog-nitive performance , saccade trajectory confusion , information collection , the line of sight fluency is blocked .
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