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Method for searching components by graphs in BIM (Building Information Modeling) and image-text searching system

A technology for searching graphs and graphs, which is applied in the field of building information, can solve problems such as low search efficiency, high labor cost, and limited retrieval accuracy, and achieve the effects of improving retrieval efficiency, eliminating manual operations, and high degree of intelligence

Pending Publication Date: 2020-01-17
上海慧之建建设顾问有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the actual retrieval process, if you search through text, you need to know the exact text attributes of these components in advance before you can search through text. If the text attributes are missing, irregular and incorrect, the retrieval accuracy will be limited.
If you search through the existing view, if the search object is a large building, since there are many types and quantities of components in the BIM model of a large building, and the search for each component requires manual operations such as translation, rotation, and zooming, and you need to use the view If the function is browsed and searched in the model, the view search will inevitably consume a lot of manual effort, and the search efficiency is extremely low

Method used

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  • Method for searching components by graphs in BIM (Building Information Modeling) and image-text searching system
  • Method for searching components by graphs in BIM (Building Information Modeling) and image-text searching system
  • Method for searching components by graphs in BIM (Building Information Modeling) and image-text searching system

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Experimental program
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Embodiment 1

[0027] Such as figure 2 As shown, this embodiment provides a BIM model-based graphic search system 1 including: a first input module 101, a first storage module 102, a text attribute acquisition and automatic labeling module 103, a two-dimensional projection image acquisition and automatic labeling module 104. Triangular patch acquisition and automatic labeling module 105, fourth storage module 106, second storage module 107, first control storage module 108, third storage module 109, training module 110, second control storage module 111, text attributes The search input module 112, the two-dimensional projection map search input module 113, the three-dimensional model search input module 114, the triangle surface conversion module 115, the category recognition module 116, and the search display module 117.

[0028] The first input module 101 is used to input a sample BIM model, and the construction software development company can select a representative model from its BIM mode...

Embodiment 2

[0075] This embodiment provides a graphic search system 2 based on a BIM model. In this embodiment, the same reference numerals are used in the drawings for the same as the embodiment, and the same explanation is omitted in the text description.

[0076] Such as Picture 9 As shown, the graphic search system 2 based on the BIM model of this embodiment includes: a first input module 101, a first storage module 102, a text attribute acquisition and automatic labeling module 103, a two-dimensional projection image acquisition and automatic labeling module 104, Fourth storage module 106', second storage module 107', first control storage module 108', third storage module 109', training module 110', second control storage module 111', text attribute search input module 112, two One-dimensional projection map search and input module 113, three-dimensional model search and input module 114, projection module 118, category recognition module 116', search and display module 117'.

[0077]...

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Abstract

According to the method and the system for searching for the components through the graphs in the BIM, the method for searching for the components through the graphs in the BIM is carried out according to the following steps that 1, a data set is established; 2, training a neural network model by utilizing the data set; 3, inputting a to-be-searched graph, and performing component type recognitionon the input to-be-searched graph by utilizing the trained neural network model; and step 4, according to the component category identified in the step 4, searching all components of the same category from the BIM model. According to the method, the building components can be automatically retrieved in several retrieval modes of text attributes, two-dimensional projection drawings and three-dimensional models, and the retrieval efficiency is high.

Description

Technical field [0001] The present invention relates to the technical field of building information, in particular to a method for searching for components in a BIM model and a graphic search system based on the BIM model. Background technique [0002] Building Information Modeling (Building Information Modeling, BIM) technology is a digital tool applied to engineering design, construction, and management. Through the integration of building digital and information models, it can be used in the whole life cycle of project planning, operation and maintenance. Sharing and transmission in the process enables engineering and technical personnel to correctly understand and efficiently respond to various building information, and provide a basis for collaborative work for the design team and various construction entities including construction and operating units, thereby improving production efficiency , To save costs and shorten the construction period to play an important role. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/532G06F16/583G06T17/20G06N3/04
CPCG06F16/532G06F16/583G06T17/20G06N3/045
Inventor 应宇垦王洪伟应宇梁刘涛曾钱徐元桥李慧盛楠姜成涛吴雪洁陆悦伟
Owner 上海慧之建建设顾问有限公司
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