Abstract: The present invention provides a method for simulating daylight performance of buildings based on regional daylight climate data. The method comprises the steps of: establishing a regional sky luminance distribution database from measured data; mapping sky luminance data to an artificial sky lamp group; using a 3D printing machine to fabricate a scaled physical model based on real parameters of the building to be simulated; and using the scaled physical model in the artificial sky integrated with regional sky luminance distribution data to make the daylight performance simulation. This method can achieve high-precision simulation of the daylight performance of buildings by using regional sky daylight climate data with a highly accurate physical model of the building.

Abstract: The present invention proposes an evaluation method of solar energy utilization potential in urban high-density areas based on low-altitude photogrammetry, comprising the following steps: low-altitude data acquisition using drones, acquisition of three-dimensional point cloud data, screening of building subject points, selection of seed region, region growth and point cloud patch segmentation, three-dimensional reconstruction, building geometry model, solar radiation simulation and solar energy utilization potential assessment steps. The invention utilizes low-altitude photogrammetry to obtain point cloud data in a high-density area of the city, and performs semantic division and three-dimensional reconstruction on the point cloud data through a parameterization tool to obtain a singular geometric model. Therefore, the solar radiation and dynamic change obtained from the roof and facade of the building are simulated and analyzed in the same platform.

Abstract: The present invention provides a method for simulating daylight performance of buildings based on regional daylight climate data. The method comprises the steps of: establishing a regional sky luminance distribution database from measured data; mapping sky luminance data to an artificial sky lamp group; using a 3D printing machine to fabricate a scaled physical model based on real parameters of the building to be simulated; and using the scaled physical model in the artificial sky integrated with regional sky luminance distribution data to make the daylight performance simulation. This method can achieve high-precision simulation of the daylight performance of buildings by using regional sky daylight climate data with a highly accurate physical model of the building.

Abstract: The present invention proposes an evaluation method of solar energy utilization potential in urban high-density areas based on low-altitude photogrammetry, comprising the following steps: low-altitude data acquisition using drones, acquisition of three-dimensional point cloud data, screening of building subject points, selection of seed region, region growth and point cloud patch segmentation, three-dimensional reconstruction, building geometry model, solar radiation simulation and solar energy utilization potential assessment steps. The invention utilizes low-altitude photogrammetry to obtain point cloud data in a high-density area of the city, and performs semantic division and three-dimensional reconstruction on the point cloud data through a parameterization tool to obtain a singular geometric model. Therefore, the solar radiation and dynamic change obtained from the roof and facade of the building are simulated and analyzed in the same platform.