Water conservancy and hydropower engineering multi-source data fusion method based on BIM+GIS

Abstract

The invention discloses a water conservancy and hydropower engineering multi-source data fusion method based on BIM+GIS. The method comprises the steps of S1, exporting a fused model in a native BIM platform for lightweight processing; S2, fusing two types of multi-source model data; and S3, acquiring, processing and fusing oblique photography data in GIS software. The invention provides a technical scheme for processing, importing and keeping the model light weight, high quality and high system availability based on the native BIM platform model, and solves the problems that the BIM visualization platform model is large in volume and slow in platform loading; and the technical scheme of data acquisition, fusion and application of oblique photography data from field surveying and mapping, data processing and data fusion is verified.

Description

technical field [0001] The invention relates to a water conservancy and hydropower project management "digital twin" scenario, in particular to a BIM+GIS-based multi-source data fusion method for water conservancy and hydropower projects. Background technique [0002] As the basis of engineering intelligence, BIM+GIS technology is increasingly used in point-shaped and long-term water conservancy and hydropower engineering projects. However, BIM+GIS technology needs to integrate BIM model, oblique photography data, terrain data, orthophoto data, GIS coordinate data and other multi-source data in the same scene to create a "digital twin" scene that is close to reality for the project. However, the current problems of this technology in the industry mainly include: 1. Large amount of model data: the BIM model of data fusion is often a design model established by the design unit and a construction deepening model established by the construction unit, and the data of these two mo...

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Problems solved by technology

However, the current problems of this technology in the industry mainly include: 1. Large amount of model data: the BIM model of data fusion is often a design model established by the design unit and a construction deepening model established by the construction unit, and the data of these two models is too complicated , The volume is too large, which often leads to distortion of the fused model or system operation freeze

2. Diversification of model data sources: In the process of project implementation, the construction parties of the project usually use different data to create platforms, resulting in the BIM+GIS of the project management platform finally built by the project, and the model data format in a picture scene Not uniform, different encoding methods

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