动态光环境下机载显示器亮度自动调节系统设计

受飞行器运行姿态、天空光参数变化影响,机载显示器上光环境动态变化,尤其对于歼击机等高机动性飞行器,显示器上光环境变化更为复杂,针对动态光环境对显示器上信息辨识性的影响,本文提出一种机载显示器亮度自动调节系统,该调节系统以光照传感器检测光环境变化,根据亮度控制模型计算显示器目标亮度,并依据人眼亮、暗适应关系模型调节显示器亮度。本系统具有亮度变化柔和、调光过程光色一致性好等优点,保证驾驶舱照明环境的均匀、舒适,且具有好的视觉工效。

Design on Auto-dimming System of Cockpit Display Illumination under Dynamic Light Environment

Because of the effect of plane moving poses and skylight parameters,the light environment on the cockpit display is changing,especially for the plane with high flexibility. To reduce the effect of dynamic light environment on the display visibility,an auto-dimming system of cockpit display illumination was proposed. The background luminance was measured with light sensors. According to the light control model and the background luminance,the desired illumination was computed. Moreover,based on dark and bright adaption models,the current illumination was determined. The system had the advantages of light change softness and good chroma consistency. Aircraft cockpit illumination was uniform,comfort,and had well visual effect.