BIM and GIS ontology fusion method and system based on SWRL rule

Abstract

The invention relates to the technical field of image data processing, and discloses a BIM and GIS ontology fusion method and system based on an SWRL rule. The method comprises the steps: carrying out the analysis of a building information model BIM, and obtaining an entity type and an entity attribute, wherein the entity attributes comprise entity relationship attributes and entity data attributes; converting the entity category and the entity attribute obtained by analysis to obtain the entity category and the entity attribute corresponding to a geographic information system (GIS); storing the entity category and the entity attribute; and determining data corresponding to each level in a geographic information system (GIS) based on the stored entity categories and entity attributes. A semantic matching and geometric reconstruction combined method is adopted in an ontology layer, semantic matching is adopted for entity correspondence and partial attribute correspondence under the IFC and CityGML standards, a geometric reconstruction method is adopted for attributes such as coordinate conversion, and conversion from the IFC to the CityGML is automatically completed.

Description

technical field [0001] The invention relates to the technical field of image data processing, in particular to a BIM and GIS ontology fusion method and system based on SWRL rules. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] Against the background of the rapid development of information technology, issues such as how to innovatively apply the new generation of information technology to optimize the urban structure, optimization and renewal of the smart city construction as the core have attracted widespread attention. From a digital city to a smart city is a more refined process of urban management. Only using the building information model BIM will lack the data information on the geographic coordinates, and if only using the geographic information system GIS, the structural composition of each entity in the building cannot be ...

AI Technical Summary

Problems solved by technology

[0007] (1) The GIS data format after data format conversion does not have semantic information, cannot express the relationship between buildings, does not have a multi-level of detail expression form, and cannot be used for data sharing in multiple fields

[0008] (2) Standard extension According to specific research fields, some information in the BIM model is selected for research, without detailed discussion of building components, it is difficult to achieve a complete mapping

But its invention does not specifically describe what the mapping rules and conversion rules are

Although the invention proposes to use the ontology, it does not use the ontology files of the IFC and CityGML standards

And no swrl rules are used, only manual mapping, automatic conversion cannot be realized, manual mapping takes a lot of time, and the practicability is poor

[0010] Chinese invention patent (application number: 201910299613, patent name: a method for automatically extracting a multi-level-of-detail GIS surface model from a BIM solid model), although it mentions the CityGML model that maps the five layers of LOD0-LOD4 respectively, its invention is in the transformation The model is realized through the four aspects of IFC model analysis and IFC model filtering based on semantic mapping relationship. However, this invention is directly based on the two formats of IFC and CityGML, and the direct conversion will be caused by some information unequals, mismatches and other issues. Cause loss of data or information, ultimately resulting in incomplete conversion results

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