A Fast Estimation Method of Direct Solar Radiation Energy at Building Scale

Abstract

The invention discloses a rapid estimation method for solar energy in a construction size. The method includes the steps that by the comprehensive utilization of LiDAR data and high-resolution remote sensing image data, and three-dimension digital surface modeling is performed on objects such as urban constructions and trees; through simulation analysis of the attenuation effect, on direct solar radiation to the ground, of the atmosphere and the sheltering influence, on direct solar radiation energy obtained by construction surfaces including roofs and wall faces, by the urban objects, the solar energy obtained by the roofs and the wall faces of the urban constructions and dynamic estimated values are obtained. The rapid estimation method is suitable for specific application of using solar energy resources in the construction size in an urban region, wherein the specific application includes optimal configuration of energy resources, installation of solar photovoltaic equipment, design of green and environment-friendly constructions and the like.

Description

technical field [0001] The present invention relates to new energy and energy-saving technologies, in particular to a building-scale solar energy estimation method based on remote sensing and three-dimensional space analysis technology, which can quickly and conveniently predict the solar radiation energy obtained by the roofs and walls of urban buildings The size and dynamic changes can be applied to applications such as the development and utilization of urban solar energy and green building design. Background technique [0002] Since the industrial revolution, the world's energy consumption has increased sharply, fossil energy resources such as coal, oil, and natural gas have been consumed rapidly, and the ecological environment has continued to deteriorate. In particular, greenhouse gas emissions have led to increasingly severe global climate change, and the sustainable development of human society has been seriously threatened. Reducing the use of fossil fuels and devel...

AI Technical Summary

Problems solved by technology

At present, the research on building lighting using GIS is mainly based on the three-dimensional visualization of building sunlight and shadows based on virtual reality, such as ArcGIS of ESRI Company and SketchUp of Google Company. The actual solar radiation is combined for further analysis, and it is not possible to provide relevant data on the solar radiation available for each wall of the building

[0007] In addition to the above problems, in the existing similar studies, the 3D digital modeling of urban objects (including buildings and trees) is a major bottleneck, and the existing technology cannot meet the needs of overall urban planning and personal practicality

Domestic research mainly relies on climate models and meteorological station observation data to estimate solar radiation parameters at the regional scale, and cannot obtain spatially continuous solar energy data.

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