Engineering drawing material information extraction method based on template

A technology for information extraction and engineering drawings, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as large noise, significant differences, poor self-adaptation, etc., to reduce complexity, improve versatility, and ensure accuracy sexual effect

Active Publication Date: 2010-11-10
北京中科辅龙智能技术有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to provide a template-based engineering drawing material information extraction method to solve the above-mentioned form recognition and information extraction methods with poor adaptability a

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  • Engineering drawing material information extraction method based on template
  • Engineering drawing material information extraction method based on template
  • Engineering drawing material information extraction method based on template

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Embodiment Construction

[0061] The template-based engineering drawing material information extraction method proposed by the present invention, on the basis of secondary development of AutoCAD software, utilizes Object ARX to provide AutoCAD with added extraction template making, material table extraction, extraction result editing and extraction, etc. Execute the command to realize the extraction template production and CAD engineering drawing material information extraction; after the material extraction, the material information editing interface is provided; the modified material information is stored in the Microsoft Access database one by one using ODBC technology, and the subsequent summary statistics And when engineering cost analysis and historical design data reuse, the data information is read into the array for use. It is described as follows in conjunction with accompanying drawings and embodiments.

[0062] The table of materials of a general CAD design drawing can be regarded as a coll...

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Abstract

The invention discloses an engineering drawing material information extraction method based on a template, comprising the following steps of: generating a table figure, words and filling rule description information of table units by using figure software to generate a table extraction template; reading and identifying basic figure element type information, figure property parameter information, rule description information and topological structure information which are contained in the extraction template; analyzing the feature of the extraction template to form table feature description according to the topological structure information; circularly reading and identifying basic figure element types and figure property parameter information in a CAD (Computer Aided Design) design drawing and then identifying table frames according to table features to form table frame integrations; circularly identifying the element of each table frame integration and then reading and identifying the basic figure element types and the figure property parameter information; and extracting material information and storing the material information in a database. The invention improves the extraction precision of the table features and ensures the extracted semantic relevance and the extraction accuracy of the material information.

Description

technical field [0001] The invention relates to the technical field of extracting engineering drawing material information containing material tables, in particular to a method for extracting engineering drawing material information based on a template. Background technique [0002] As a highly refined and concentrated form of information expression, tables are the main design information carrier of engineering drawings, the basis for project cost estimation, the basis for engineering material procurement, and the basis for construction organization. Since the 1990s, the "drawing board" project promoted by our country in the field of engineering design has achieved great success, but the "drawing board" project has only realized computer graphics. In order to obtain material information from a large number of material sheets of historical electronic drawings, to perform engineering cost analysis or reuse of historical design data, designers usually have to manually check eac...

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Application Information

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IPC IPC(8): G06K9/62G06K9/68
Inventor 唐卫清石念峰李士才何涛
Owner 北京中科辅龙智能技术有限公司
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