Substation control equipment terminal strip drawing identification method, device and equipment

By combining graphic feature analysis and text recognition technologies with a power industry coding rule library, a topological relationship map of substation terminal block drawings is constructed, which solves the problems of data silos and insufficient symbol adaptability in existing technologies, and realizes accurate identification and standardized conversion of terminal block drawings.

CN121564753BActive Publication Date: 2026-06-05FOSHAN ELECTRIC POWER DESIGN INSTITUTE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOSHAN ELECTRIC POWER DESIGN INSTITUTE CO LTD
Filing Date
2026-01-26
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies cannot effectively analyze the connection relationships and text information in substation terminal block drawings, resulting in data silos. This makes it difficult to meet the timeliness and accuracy requirements of intelligent transformation. Furthermore, commercial software cannot be adapted to the power industry's specialized symbol system, increasing project implementation costs and extending the transformation cycle.

Method used

By using graphic feature analysis and text recognition technology, the spatial coordinates of connection points, line types, and short-circuit symbols in terminal block drawings are accurately identified. Combined with the power industry coding rule library, a topology graph is constructed and converted into a standardized intermediate file.

Benefits of technology

It establishes a precise data foundation for terminal block drawings, reduces the risk of misjudgment, breaks through the pain point of the disconnect between graphics and semantics, supports multiple scenario requirements, and adapts to complex scenarios where multiple voltage level systems coexist.

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Abstract

The application relates to the field of electric power, and discloses a substation control device terminal strip drawing paper identification method, device and equipment, which is used for converting a terminal strip drawing paper into a standardized intermediate file. The method comprises the following steps: acquiring an electronic image of the terminal strip drawing paper, and identifying spatial coordinates of connection points, spatial coordinates of connection lines, line types, line widths and spatial coordinates of short-circuit symbols; a plurality of character sequences and corresponding minimum bounding box coordinates are identified and extracted; a semantic binding relationship between the connection points and the character sequences is established based on the spatial coordinates, the spatial adjacent relationship of the connection points is determined in combination with a terminal strip arrangement rule, and a short-circuit relationship is identified in combination with the adjacent relationship and the spatial coordinates of the short-circuit symbols; the spatial coordinates of the connection lines, the line types and the line widths, the spatial coordinates of the connection points, the semantic binding relationship and the short-circuit relationship are integrated, and a topological relationship atlas is constructed; and elements and loops in the atlas are classified based on an electric power industry coding rule library, and are converted into the standardized intermediate file in combination with engineering modeling rules.
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Citation Information

Patent Citations

  • Intelligent digital conversion method and system for electric power drawing

    CN120318845A

  • Electrical engineering drawing wiring relation intelligent identification system based on multi-modal fusion

    CN121366419A