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In the research of building energy conservation, fully utilizing natural lighting and appropriate shading are one of the most important means of energy-saving technology. In nature
In practical research on daylighting and shading, a stable experimental environment is needed, but due to the uncontrollability of the natural environment, people currently prefer
We need to use artificial simulation of the sky to create this condition. By placing a scaled down building model under an artificial dome
Conduct sunshine testing and inspection on the architectural design plan. Traditional artificial domes generally have forms such as direct projection of light onto the inner surface for diffusion, and mirror shaped rooms
Forms such as formula, internal light transmission and diffusion. The first two have low cost, but the structure cannot be made too large and is not easy to debug.
This system is in the form of internal light transmission diffusion, using the latest intelligent control technology and adding a solar simulation lamp, which can not only simulate the standard CIE

The study of sunlight is extremely important in architectural design and teaching. The height angle and azimuth angle of buildings relative to the sun will have completely different lighting and energy-saving effects. The JTG-S6 intelligent building sunlight tester is a professional tester developed based on the above requirements. This testing instrument can be used to draw bar shadow maps and place a scaled model of a building on the instrument measurement platform. Through the model, the shadow changes of a building at a certain time and place, the indoor sunshine time, sunshine area, and the shading of the sun visor can be directly observed. It can also be used to observe the relationship and mutual influence between the orientation and spacing of buildings.

relationship between the orientation and spacing of the building and their mutual influence.
Compared with the traditional manual three-parameter heliometer, this test instrument has realized full automatic system. The test parameters are set by the supporting software, and the built-in motor automatically and accurately positions. The single-point test can be realized by determining the solar altitude angle and azimuth angle through longitude and latitude and time, and the dynamic test of the continuous change of solar altitude angle and azimuth angle can also be simulated. JTG-S6 is equipped with an illuminance sensor, which can automatically collect illuminance distribution and analyze lighting characteristics through software. At the same time, it can also be combined with digital imaging technology to collect and analyze the video of the building model.