Visual planning auxiliary system based on three-dimensional GIS

Abstract

The invention relates to the technical field of engineering management, in particular to a visual planning auxiliary system based on a three-dimensional GIS (Geographic Information System). The system comprises a scene construction unit, a three-dimensional display unit, a intelligent file unit and a project planning unit. The scene construction unit is used for constructing a live-action three-dimensional model; the three-dimensional display unit is used for three-dimensionally displaying the planning and design result; and the intelligent archive unit is used for realizing three-dimensional visual management of archives. According to the design, high-precision and low-precision data are fused in the same scene, and browsing at any position and from any view angle, real-time data measurement and basic data analysis can be achieved; a design result can be quickly modeled, and the communication time can be intuitively presented and compressed; on-line three-dimensional visual management can be realized on all the archives; planning and design results can be improved and optimized in the project management process, and project engineering construction is assisted; The database service can be carried out in two modes of a standalone version and a network version.

Description

technical field [0001] The invention relates to the technical field of engineering management, in particular to a visual planning auxiliary system based on a three-dimensional GIS. Background technique [0002] During the planning, design, and pre-construction process of the project, it is necessary to accurately manage the detailed information of the project's environmental terrain, engineering structure and other entities, which usually includes a large number of design drawings, measurement data, and electronic file data. However, there are still many deficiencies in the current commonly used engineering management methods, such as: [0003] First, traditional planning and design intentions are mainly expressed through line drawings and effect diagrams, accompanied by text descriptions. However, reading and understanding design intentions requires a certain basis for understanding drawings, and requires a high level of basic knowledge for those who understand drawings; al...

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Problems solved by technology

[0003] First, traditional planning and design intentions are mainly expressed through line drawings and effect diagrams, accompanied by text descriptions. However, reading and understanding design intentions requires a certain basis for understanding drawings, and requires a high level of basic knowledge for those who understand drawings; although some projects will Build a model to express the design intention and effect, but the BIM model based on the virtual scene is generally established, the design intention and effect display is poor, the expression is not intuitive, the relevant personnel or stakeholders cannot understand, the understanding is not in place, and there is communication Obstacles; part of the large-scale 3D scenes that will be used in the planning and design display, but most of them use lower-precision geographic information data as shoddy. Under the premise that the 3D GIS data cannot be guaranteed with higher precision, it can only The management function is fully placed on the refined BIM model; however, many small-scale projects do not build BIM models, and more complex projects with long construction periods generally follow the BIM workflow after design; after using BIM to display, it is completely It fails to achieve the overall management purpose of coordination and communication in the early stage of the project and the project construction process;

[0004] Second, when GIS is used in a large-scale scene, high- and low-precision geographic information data cannot be integrated, and three-dimensional display can only be displayed separately, and cannot be fully integrated into the same system for simultaneous display;

[0005] Third, although the existing software has some project file management functions, its essence is the project management ideas and modules of BIM itself, and it does not extend project management beyond the project construction process. There is no management function; at the same time, because the project file management uses the BIM information management module, the implementation is still the database name index method, and there is no geographical location association to realize the geographical location connection, especially when there is no BIM data, the system cannot realize it at all. Intelligent file management;

[0006] Fourth, the existing software does not have rapid modeling or symbolic functional modules. When there are no BIM projects and post-BIM projects, project management and other work cannot be carried out. It can only be post-construction without management, which has no practical significance;

[0007] Fifth, the existing software requires a lot of human-computer interaction content, and requires users to build a large number of models by themselves. management functions;

[0008] Sixth, when 3D scenes are used on a large scale, the amount of data loaded by the existing software is basically controlled within 100GB, and the system cache cannot be optimized well. When adding large-scale 3D data in large scenes such as highways, the system response ability is poor

[0009] However, there is currently no 3D GIS-based engineering project visualization planning assistance system that can solve the above problems

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