BIM information visualization system and method based on mobile augmented reality

Abstract

The invention discloses a BIM information visualization system based on mobile augmented reality. The BIM information visualization system comprises a database server for storing and managing engineering data and mobile equipment in wireless communication with the database server; the mobile equipment comprises a processor, and a human-computer interaction interface, a positioning system and a visual system which are connected with the processor; the positioning system is used for collecting position and attitude data of the mobile equipment and comprises a satellite positioning system and aninertial measurement unit; the visual system is used for collecting field image data and comprises a visual camera; and the processor receives and processes signals from the positioning system, the visual system and the human-computer interaction interface, exchanges data with the database server, performs sectioning processing on the BIM data, fuses the sectioned BIM data with the acquired imagedata, and displays the fused BIM data through the human-computer interaction interface. The invention further discloses a BIM information visualization method based on mobile augmented reality. The actual construction scene and the virtual model scene can be fused, and the real-time performance of visualization can be improved.

Description

technical field [0001] The present invention relates to a BIM information visualization system and method, in particular to a BIM information visualization system and method based on mobile augmented reality. Background technique [0002] As an important water-retaining structure in water conservancy and hydropower projects, the construction quality and progress of arch dams directly affect the construction cost and safety of the entire project. High arch dams are mostly located in high mountains and deep valleys, where the natural environment is harsh, and the structure of high arch dams is complex. The construction progress is affected by various factors such as structural form, building materials, construction technology, and pouring machinery. The construction period of the high arch dam is long, and the construction schedule plan needs to integrate the data of different divisions such as height difference, temperature control, joint grouting, and consolidation grouting,...

AI Technical Summary

Problems solved by technology

However, the BIM visualization display methods in the existing research have the following deficiencies: (1) BIM systems developed based on a specific platform are often restricted by cross-platform when information interactive query and 3D model appearance update, that is, users need to install Only professional software on a specific BIM platform can be used for information entry and visual query, which lacks flexibility; (2) Although the BIM integration and management system based on Web and GIS has great advantages in user accessibility, the construction of geographic information The model requires a lot of time and computer resources, and the terrain and buildings of the project are constantly changing with the progress of the construction process, and it is difficult to update the 3D models of the virtual terrain and buildings in time, which leads to the information displayed in part of the BIM visualization. There is a problem of update iteration lag; (3) The structure of high arch dams is complex and there are many factors affecting construction. Decision makers often need to accurately obtain information accurate to each dam block to support the formulation of schedule plans and management plans. However, the existing The research on the BIM platform for high arch dam construction has not involved how to efficiently integrate the detailed construction information of each dam block during the construction period and display it to users through effective visualization means

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