Lightweight BIM big data online visualization method and system

A big data, lightweight technology, applied in other database browsing/visualization, electronic digital data processing, other database retrieval and other directions, can solve the problems of high geometric redundancy, slow data access speed, complex logical structure, etc., to achieve acceleration Effects of lightweight processing, improved utilization, and reduced burden

CN106776963AActive Publication Date: 2017-05-31JILIN ANIMATION INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-31

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Abstract

The invention relates to a lightweight BIM big data online visualization method and system. The method includes the following steps that lightweight analysis based on semantic guidance is conducted on a BIM scenario component set to obtain a lightweight component base; the interior structure of a BIM building is automatically partitioned to generate multiple relatively independent spaces and a relation structure chart of the relatively independent spaces; a multilayer data index structure with multi-granularity decomposition is established according to the relation structure chart and the component set in each space; the lightweight component base is called according to the multilayer data index structure to achieve progressive visualization of the BIM building, and in the visualization process, with each space as the unit, data in the next space relative to the current space is cached and data in the last space is deleted. Compared with the prior art, the method and system have the advantages of automation, lightweight, fine granularity and the like.
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Description

technical field

[0001] The invention relates to the field of BIM data processing, in particular to a lightweight online visualization method and system for BIM big data. Background technique

[0002] With the development of intelligent buildings, BIM (Building Information Modeling) technology has become the core technology of today's AEC (Architecture, Engineering and Construction) industry, dedicated to information sharing and exchange throughout the life cycle of buildings. The efficient analysis of BIM buildings, especially the online visual analysis that supports mobile networks, has gradually been concerned and relied on by more industries related to the building life cycle. However, it is precisely because of the wide range of information involved in BIM construction, complex spatial structure, and strong professionalism that compared with traditional architectural data, BIM data has the characteristics of large volume, complexity, and difficulty in organizing and mana...

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Embodiment Construction

[0053]The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0054] This embodiment provides a lightweight online visualization method for BIM big data. The basic idea is to use the combination of semantic information and geometric calculation of BIM data, and quickly perform lightweight preprocessing of BIM data components through the extended ICP method. The redundant information of data forms a lightweight underlying component library; at the same time, combining dynamic / progressive visual elimination with the spatial structure of BIM buildings, a progressive transmission and elimination method based on "building space" is proposed, which can ...