7 results about "Building modeling" patented technology

The present application belongs to the technical field of curtain wall facilities, and particularly relates to a horizontal-through vertical-cut curtain wall system, which comprises a fixed plate, the side surface of the fixed plate is provided with a bracket, the side surface of the bracket is provided with an insertion block, the bottom of the insertion block protrudes from the bottom side edge of the bracket, the fixed plate is provided with an insertion slot corresponding to the insertion block, the fixed plate and the bracket are connected through the insertion of the insertion block and the insertion slot, the fixed plate and the bracket form a basic adapter, a horizontal beam is fixed on the platform of the bracket and the platform of the adapter, an insertion core is arranged on the top of the horizontal beam, the insertion core is fixed on the horizontal beam through a pin, a vertical column is arranged on the top of the horizontal beam, the vertical column is sleeved on the outside of the insertion core, a long shaft bolt is fixed on the side surface of the fixed plate, a notch is arranged on the bottom side of the insertion block, and the slot type of the insertion slot is matched with the insertion block. The present application can reduce the positioning time of the overall building modeling, greatly save the corresponding labor, simplify the positioning process, improve the construction speed, and shorten the construction period.

The application discloses a method and device for inverse form-finding of cable elements, and a storage medium, which projects a building space curved surface to an xoy plane to obtain a building outer contour projection line; an initial net shell structure model is designed according to the building outer contour projection line and combined with building modeling needs; real boundary conditions are set for the net shell structure model, real loads are applied, all beam elements in the net shell structure model are replaced by cable elements, initial stiffness is set, and an initial cable structure model is obtained; a finite element analysis software is used to obtain deformation forms and deformation data of the cable structure model under real loads and real boundary conditions; the obtained deformation data is scaled and inverted in combination with actual building sizes to obtain an optimal structure form matched with an actual building form. The form-finding calculation process of the application does not need multiple iterative calculations, effectively saves time cost, greatly improves structure form-finding efficiency, is simple to operate, low in design difficulty and high in design efficiency.

The application discloses a building model generation system, method, device and medium, and relates to the field of building modeling.The system comprises a vector data import module, a building contour generation module, a height calculation module, an extrusion modeling module and a user interaction module.The vector data import module supports importing vector data and can complete multi-component polygon disassembly and ring direction standardization processing.The contour generation module converts the coordinate data after standardization processing into a polygon building base suitable for a three-dimensional software and completes the adaptation through a coordinate scaling factor.The height calculation module provides multiple height generation modes and realizes dynamic and diversified generation of building heights.The extrusion modeling module encapsulates a three-dimensional software bottom polygon extrusion command, completes conversion from a plane base to a three-dimensional block, and generates a three-dimensional building block with a top surface.The user interaction module integrates all the functions in a visual interface and supports intuitive parameter adjustment.

The utility model relates to the field of building modeling provides a three -dimensional scanner mounting base for building modeling, this base includes: support rod, fixed cylinder, fixedly covers in the outer surface of support rod, and the inner wall department of fixed cylinder all movably set up a plurality of support rods, the application is in use, through a plurality of connecting rods drive a plurality of sliding blocks in a plurality of groove boards inner wall department upwards sliding, further make a plurality of support rods angle bigger, further reduce the height of scanner body, when the slide cylinder slides down, through a plurality of connecting rods drive a plurality of sliding blocks in a plurality of groove boards inner wall department downwards sliding, further make a plurality of support rods angle smaller, further increase the height of scanner body, after height adjustment is good, through the fixed rod is inserted to the inside of slide cylinder and one of positioning hole, make the slide cylinder fixed on the outer surface of support rod, thereby when using the base, the base height of scanner can be adjusted, improve the practicality of base.

The present disclosure relates to the technical field of aerial photography surveying of flight platforms, in particular to an aerial photography system and device for steep slope and complex building modeling; the device comprises a flight platform and a tilt three-camera aerial photography module, the flight platform is used for flying in a three-dimensional route in the shape of a cross; the tilt three-camera aerial photography module is arranged at the lower end of the flight platform, the tilt three-camera aerial photography module has a first camera and two second cameras, the two second cameras are symmetrically distributed on the two sides of the first camera, the included angle between the optical axis of the second camera and the optical axis of the first camera is 40-50 degrees, the focal length of the lens of the first camera is 30-40 mm, and the focal length of the lens of the second camera is 40-50 mm. The device can realize multi-angle unobstructed shooting, effectively solve the obstruction problem, and realize high-precision three-dimensional modeling without control points.

The application discloses a BIM model numbering input and auditing method based on GH and Revit, clears two-dimensional drawings and extracts numbering data through Rhino, extracts BIM model component centroids and projects to generate point clouds by using Grasshopper, matches the numbering of the two-dimensional drawings with the BIM model components based on a nearest neighbor algorithm, and realizes batch input and dynamic synchronous updating of the numbering; and the instance parameter values of the BIM model components are read by Grasshopper and compared with the two-dimensional drawing numbering data set automatically, so as to generate an Excel auditing report containing consistency marks. The application relates to the technical field of building modeling, and can solve the technical problems in the prior art.

This invention relates to a method for 3D building modeling combining LiDAR point clouds and iOS 3D scanning, belonging to the field of 3D reconstruction and point cloud processing technology. The invention addresses the technical contradictions in 3D building reconstruction, such as impure structures and uneven model surfaces caused by environmental noise in LiDAR point clouds, and global inaccuracies and structural deformations caused by positioning drift in mobile device scanning. The method includes: acquiring raw point clouds using LiDAR and performing semantic segmentation using SoftGroup to extract clean building structure point clouds; simultaneously acquiring and parsing RoomPlan JSON files using an iOS device to reconstruct initial wireframe models of walls and floors; aligning the two types of data spaces through interactive coarse registration and ICP fine registration based on bounding box clipping; extracting the main structural planes of the building from the registered point clouds using the RANSAC algorithm; and finally, achieving geometric refinement of the wireframe model by aligning the walls with the extracted planes, calculating intersection lines, and optimizing shared vertices.