虚拟火场环境因子对森林消防车驾驶员间接视野的影响
Attenuation of forest fire engine driver's indirect visual field in virtual fire environment
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摘要: 从森林消防车间接视野的传统检测缺陷入手,建立森林消防车间接视野虚拟测试系统,得出在虚拟火场环境 下森林消防车驾驶员间接视野衰减的测试数值。结果表明:驾驶员的间接视野衰减会导致森林消防车出勤事故; 在驾驶员的间接视野衰减中,C 柱盲区略有增大;前进时的驾驶员间接视野衰减幅度小于后退时;定点光源频闪下 的间接视野衰减小,移动光源频闪下的间接视野衰减大;同等光线环境下,配合烟雾和噪声时的间接视野衰减最明 显;驾驶员在明视觉状态下的间接视野衰减不明显,暗视觉状态下的间接视野衰减明显。Abstract: Starting with the research on traditional testing of indirect visual fields, this paper establishes a virtual indirect visual field test system of forest fire engine, gets the attenuation value of forest fire engine driver's indirect visual field in virtual fire environment. The results showed that indirect visual field attenuation of forest fire engine driver lead to the accident; C column blind area increased slightly with forest fire engine driver's indirect visual field attenuation; the indirect visual field attenuate extent of forest fire engine driver moving forward is less than it reversing; the indirect visual field attenuation is lower under point stroboscopic light source and the indirect visual field attenuation is larger under mobile stroboscopic light source; the indirect visual field attenuation with smoke and noise is the most obvious in same light environment; the indirect visual field attenuation of forest fire engine driver in photopic vision is not obvious and that in scotopic vision is obvious.