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PID drawing intelligent identification and redrawing method

A technology of intelligent recognition and drawings, applied in neural learning methods, character and pattern recognition, geometric CAD, etc., can solve problems affecting design quality and project duration, slow drawing progress, low efficiency, etc., to reduce the time for manual drawing of PID , Improve the effect of drawing efficiency and quality

Active Publication Date: 2022-07-01
UNIV OF JINAN
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, petrochemical engineering companies mainly rely on professional engineers to manually draw PID, but there are problems of slow drawing progress and low efficiency, which greatly affect the design quality and project schedule

Method used

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  • PID drawing intelligent identification and redrawing method
  • PID drawing intelligent identification and redrawing method
  • PID drawing intelligent identification and redrawing method

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Embodiment Construction

[0074] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0075] see Figure 1 to Figure 4 The present invention provides a technical solution for a method for intelligently identifying and redrawing PID drawings: a method for intelligently identifying and redrawing PID drawings, comprising the following steps:

[0076] S1. Convert the PID drawing file into a PID drawing image and preprocess the image at the same time, and establish a two-dimensional coordinate system on the image;

[0077]...

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Abstract

The invention provides a PID drawing intelligent identification and redrawing method, and relates to the field of PID drawing identification, image processing and computer aided design. According to the method, template matching, deep learning, a pixel point-based pipeline identification algorithm and a merging rule method are adopted to realize positioning, classification and character detection and identification of drawings in a PID drawing image, the drawings and characters are associated by using a regular expression, and redrawing of the PID drawing is completed through PID drawing software. The time for professional engineers to manually draw the PID can be greatly shortened, and the drawing efficiency and quality are improved.

Description

technical field [0001] The invention relates to the fields of PID drawing recognition, image processing and computer-aided design, in particular to a method for intelligently recognizing and redrawing PID drawings. Background technique [0002] PID is the abbreviation of Piping and Instrument Diagram, that is, the pipeline and instrument flow chart, which is the basis for the detailed engineering design of the factory. In the domestic petrochemical industry, petrochemical engineering companies need to convert PID drawing files (CAD version, PDF version) into intelligent PID (SPPID) in the face of the digital handover requirements put forward by the owner. Equipment, pipelines (including main and secondary pipelines), instruments, valves and other drawings and their labels must be clearly expressed in SPPID using uniformly specified drawing symbols and text formats. At present, petrochemical engineering companies mainly rely on professional engineers to manually draw PIDs, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V30/422G06V30/418G06V30/19G06V10/82G06N3/04G06N3/08G06K9/62G06T11/20G06F30/18G06F113/14
CPCG06N3/08G06T11/203G06F30/18G06F2113/14G06T2210/32G06N3/045G06F18/22G06F18/24Y02P90/30
Inventor 李忠涛肖鑫玄文凯赵帅袁朕鑫杨磊
Owner UNIV OF JINAN
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