Street tree screening method, system and terminal based on thermal comfort index, and medium

Abstract

The invention discloses a street tree screening method based on a thermal comfort index. The method comprises an actual measurement stage, a simulation stage and a contrastive analysis stage. In the actual measurement stage, the microclimate factor data, which is obtained by actual measurement, of a single street tree to be measured, and the microclimate factor data of the single street tree to bemeasured under a street environment are independently input into Rayman software to be calculated, and the PET (Physiological Equivalent Temperature) data and the PMV data of the single street tree to be measured as well as the PET data and the PMV (Predicted Mean Vote) data of the single street tree to be measured under a street environment are independently obtained. In the simulation stage, ENVI (The Environment for Visualizing Images)-met microclimate simulation software is adopted for modeling to obtain the PET data and the PMV data of each street tree to be measured under the street environment. In the contrastive analysis stage, sorting comparison is carried out on the data obtained in the contrastive analysis stage and the actual measurement stage and the data obtained in the simulation stage to obtain a street tree species with a good thermal comfort degree. The method is combined with the influence of the street tree on the thermal comfort of pedestrians to quantize the thermal comfort of pedestrians under different street trees, and an accurate basis is provided for scientifically selecting the street tree species.

Description

Technical field [0001] The present invention relates to the field of computer technology, in particular to a method, system, terminal and medium for screening street trees based on thermal comfort indicators. Background technique [0002] With the rapid development of urbanization and the impact of human activities, the original natural underlying surface of the city has changed, and the material and energy balance near the ground in the urban area has been destroyed, which in turn triggers many environmental problems and changes the microclimate of the city. The heat island effect is the most significant factor causing the severe thermal environment in the city, which seriously affects the health of residents. As the basic unit of urban outdoor space, the research and improvement of its microclimate has an extremely important impact on improving the overall environmental quality of the city. Pedestrian walking in summer is largely restricted by the thermal environment of the st...

AI Technical Summary

Problems solved by technology

In view of the fact that street trees on the road cannot form a good shading environment in summer, street trees have not exerted their ecological value

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