Three-dimensional digital road network construction method based on BIM and GIS technologies

Abstract

The invention discloses a three-dimensional digital road network construction method based on BIM and GIS technologies, and the method comprises the following steps: a multi-lens unmanned aerial vehicle is included, the multi-lens unmanned aerial vehicle comprises a vehicle body, a transparent protection cover is fixed at the lower end of the vehicle body, five cameras are arranged in the transparent protection cover, one end of each camera is provided with an angle adjusting device, and the other end of each camera is provided with an angle adjusting device; undercarriages are fixed to the two sides of the lower end of the vehicle body, and the three-dimensional digital road network construction method comprises the following steps that S1, partition operation is conducted, oblique photography aerial survey operation is conducted through a multi-lens unmanned aerial vehicle, the aerial survey range of a project is determined, and the aerial survey landform is known. According to the method, the construction of the three-dimensional digital road network model can be quickly and efficiently completed, the building and road model and the terrain model can be well fused and joined, the visual observation requirement is met, the visualization effect of the three-dimensional digital environment is greatly improved, the reliability and the error-tolerant rate are improved, and the method is suitable for popularization and application. And the construction speed and quality of the three-dimensional digital road network model are effectively improved.

Description

technical field [0001] The invention relates to the technical field of three-dimensional road network, in particular to a three-dimensional digital road network construction method based on BIM and GIS technology. Background technique [0002] Geographic Information System (GIS) is sometimes called "Geological Information System". It is a specific and very important spatial information system. A technical system that collects, stores, manages, calculates, analyzes, displays, and describes geographically distributed data in space. Building Information Modeling (BIM) is a complete information model that can integrate different engineering projects in their entire life cycle. The engineering information, process and resources of each stage are integrated in one model, which is conveniently used by all parties involved in the project. Simulate the real information of buildings through 3D digital technology, and provide a coordinated and internally consistent information model f...

AI Technical Summary

Problems solved by technology

[0003] The traditional use of computers to manage highways is limited to text table processing, and a large amount of information query and information processing, especially the analysis and processing of spatial information, still stays on traditional drawings, and it is difficult to realize the integration of highway attributes and spatial data. Comprehensive processing and analysis, let alone visualization and virtual reality, the establishment of a 3D digital road network can improve the convenience of planning, design and management of the road network, but the existing 3D digital road network construction speed based on BIM and GIS technology is relatively slow, The efficiency is low, the fusion and connection between models cannot be well realized, and it is difficult to meet the requirements of visual observation. At the same time, the error rate is high in the complicated process, and the quality cannot be guaranteed. Therefore, a technology based on BIM and GIS is designed. 3D digital road network construction method to solve the above problems

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