为研究动态飞行中外界环境色彩对平显显示信息的视觉影响,研制了一套平显信息配色绩效评价模拟系统。首先,采用IData软件对飞行导航平显界面进行建模,设置平显颜色字符块变量;其次,将建模生成的平显画面导入模拟飞行视景中进行飞行模拟测试,在模拟飞行过程中调用JSBSim模型对飞行操作数据进行动力学解算;最后,在测试过程中根据不同的飞行视景改变不同的平显字符块颜色进行模拟操作绩效的考察。模拟系统使用了OSG视景仿真软件包进行高逼真度视景仿真开发,大幅度降低了模拟系统的开发周期与难度。经过若干飞行员的模拟飞行试验,显示画面无抖动、无畸变,平显信息配色过程中无明显的视觉延迟,完全满足飞行员的测试需要。
In orderto study the visual effect of the external environment color on the information presented on Head-Up Display (HUD), a simulation system is developed to evaluate the performance of color scheme. At first, the IData software is used to model the flight navigation display interface, and the color character block of HUD is set up. Then, the HUD picture generated by the model is introduced into the simulated scene for flight simulation test. JSBSim model is used for flight operation data calculation. In the test process, different color of HUD character block is used for different visual scenes to inspect the simulated operating performance. The OSG visual simulation software package for high fidelity visual simulation development is used in the simulation system, thus the system development cycle and difficulty are reduced greatly. A number of pilot flight simulation tests show that: 1 ) The displayed picture has no fluttering and no distortion; and 2) There is no obvious visual delay in the color changing process, which can meet the needs for test.