5 results about "Building density" patented technology

The invention relates to a space resource intensive utilization evaluation method and system for a marine construction project and a medium, and the method comprises the steps: calculating a current situation value of each index in a space resource intensive utilization evaluation index system based on construction project information, and calculating an implementation degree score of each index based on the current situation value of each index; the space resource intensive utilization evaluation index system comprises the following indexes: a land construction rate, a production space ratio, an ecological space ratio, a living space ratio, a channel space ratio, a reserved space ratio, a shoreline utilization rate, an ecological shoreline recovery rate, a coast building retraction distance, a space utilization rate, a plot ratio, a building density, a space resource utilization benefit and input intensity. Output intensity and tax contribution; assigning a value to the weight of each index; and calculating a comprehensive score of intensive utilization of the space resources based on the implementation degree score and the weight of each index, and determining an intensive utilization level of the space resources according to the comprehensive score of intensive utilization of the space resources. The method effectively improves the intensive utilization evaluation precision of space resources.

The invention relates to the technical field of urban planning and rainwater management, and discloses a land parcel scale low-impact development planning verification method, system and device and a medium, and the method comprises the steps: determining a comprehensive runoff coefficient threshold value which needs to be reached by a land parcel based on a given land parcel low-impact development management and control target; obtaining planning layout parameters of the land parcel and hydrological parameters corresponding to various underlying surfaces in the land parcel; according to the planning layout parameters and the hydrological parameters, calculating through a runoff coefficient synthesis model to obtain an expected comprehensive runoff coefficient of the land parcel; and comparing the expected comprehensive runoff coefficient with the comprehensive runoff coefficient threshold value, and judging whether the planning scheme of the land parcel meets the low-impact development management and control target or not according to a comparison result. According to the method, existing indexes (such as green land rate and building density) which must be declared in a planning scheme are directly used as input, extracorporeal circulation of examination is avoided, and the management efficiency is greatly improved.

The invention provides a method and device for determining building density information, electronic equipment and a program product, and the method comprises the steps: determining a building region based on boundary information corresponding to a building set, the building region being a region to which a plurality of buildings included in the building set belong; based on the pre-selected division modes, grid division is carried out on the building area to obtain a plurality of grids, and the accuracy of the grids obtained through division in different pre-selected division modes is different; for any building in the building set, determining a target grid to which the building belongs in the plurality of grids; according to the method, the building density information of the building set is determined based on the target grids corresponding to the multiple buildings and the total number of the buildings in the building set, the building density information capable of accurately representing the sparse degree of building space distribution can be obtained, and the accuracy of data analysis based on the building density information can be improved.

The invention discloses an urban heat island intensity analysis method and system based on remote sensing inversion, and the method comprises the steps: collecting multispectral remote sensing image data through a satellite sensor, carrying out the geometric correction and atmospheric correction of an image, and obtaining a corrected remote sensing image for the subsequent temperature inversion; a normalized vegetation index is calculated according to the corrected remote sensing image, and a vegetation index distribution map is obtained through calculation according to the difference value and sum value ratio of the red light band and the near-infrared band to reflect the vegetation coverage density; identifying a high-density building area from the corrected remote sensing image by adopting a building extraction algorithm, and obtaining a building density distribution diagram through combination of texture features and spectral features to represent a building coverage proportion; and judging the temperature gradient change in the accurate surface temperature map, if the temperature gradient exceeds a preset threshold, marking the temperature gradient as a heat island boundary line, and smoothing the boundary through a spatial interpolation method to obtain a heat island boundary contour for intensity distribution analysis.

The application discloses a map division method and device, a computer readable storage medium and a processor. The method comprises: obtaining a predetermined map of a predetermined area, wherein the predetermined map is used to show the building contour of the predetermined area, and the predetermined map comprises a plurality of preset grids, and the grid area of each preset grid is the same; determining the building density in each preset grid according to the building contour in each preset grid, wherein the building density is the ratio of the building area in the preset grid to the grid area, and the building area is determined according to the building contour; clustering the plurality of preset grids according to the building density to obtain a grid clustering result, wherein the grid clustering result comprises a plurality of density levels, and each density level comprises at least one preset grid; and dividing the predetermined map according to the grid clustering result. The application solves the technical problem of low planning efficiency caused by manual planning of the map.