Visual cognition time tester with adjustable visual environment lighting condition and testing method thereof

Abstract

The invention discloses a visual environment light condition adjustable visual cognition time tester and a testing method thereof. The tester comprises a visual environment generation module, an observation camera bellows, a visual operation generation module and a control / timing module, wherein the visual environment generation module is used for forming uniform tested visual environment with adjustable brightness on a screen after a light source is adjusted by an optical device group; the screen is arranged in the observation camera bellows; the visual operation generation module can project a visual operation image with adjustable shape, size, brightness, color and position on the screen; the visual environment generation module and the visual operation generation module are positioned at two sides of the observation camera bellows; and the control / timing module is used for controlling the visual operation generation module to project the preset tested visual operation onto the screen, and triggering timing. The tester has high simulation degree, various variations of visual environment lighting condition, and rich and systematic visual operation information. Testing on human body visual cognition and response function influence related to light quality can be developed by using the tester and the method.

Description

technical field [0001] The invention belongs to the field of highway traffic engineering facilities, and in particular relates to a visual recognition reaction time tester and a test method with adjustable visual environment light conditions. Background technique [0002] Highway light environment conditions are of great significance to ensure the traffic safety of vehicles and pedestrians and improve the capacity of road transportation, especially in low or no sunlight conditions such as night, dusk, tunnels and bad weather conditions, the artificial lighting conditions provided by lighting facilities have already It has become an important guarantee for the safety and smoothness of traffic operations, and has been widely used in highway construction. [0003] With the deepening of the application and research of highway lighting facilities, and the diversification of light sources and lamps, how to choose lighting facilities reasonably, reduce energy consumption, and impro...

AI Technical Summary

Problems solved by technology

Regardless of the individual differences in the reaction time of human behavior, under the condition of a certain target state, the (artificial / natural) lighting background conditions within the driver's field of vision are different, so that the human eye's visual perception of the target has a huge difference. Differences, which in turn lead to differences in reaction time, braking distance, safety

[0004] In the absence of corresponding research equipment, due to the high cost of conditions such as the site required for the full-scale physical experiment, the number of test personnel, the number of lighting facilities, and the installation, previous research was basically limited to theoretical research and computer simulation. It also has the shortcomings of simple model and single parameter, which cannot cover a wide variety of lighting facilities and complex user needs, and it is difficult to carry out systematic and effective analysis and verification work

The above situation has led to slow progress in related research work, especially the wide application of LED lighting fixtures and electrodeless lamps in the field of road lighting. Compared with traditional sodium lamps and mercury lamps, white LED lighting products have emission spectrum, color temperature, and color rendering. On the one hand, it provides more options for improving the lighting quality, on the other hand, it also brings about the lagging problem of the existing road lighting standards and design methods, which has become a major factor restricting the further development of related industries and products. bottleneck

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