A method and system for detecting three-dimensional defects in a water environment of a inverted siphon

By using a segmented flow field model and real-time acoustic correction technology, the accuracy and stability issues of three-dimensional defect detection in inverted siphon pipes under water conditions were solved, achieving high-precision defect identification and equipment energy consumption optimization under high flow velocity conditions.

CN122218097APending Publication Date: 2026-06-16HONGJI JUNYE ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HONGJI JUNYE ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2026-05-19
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing 3D defect detection technologies for inverted siphon pipes in water-bearing environments suffer from problems such as low 3D reconstruction accuracy, large errors at high flow rates, and a lack of adaptive adjustment and point cloud optimization, leading to inaccurate defect identification.

Method used

The inverted siphon is divided into segments using a segmented flow field model. The sound wave propagation speed is corrected by combining real-time water flow parameters, the sound wave emission power and scanning density are dynamically adjusted, and temporal consistency constraints are applied to optimize the point cloud data, thereby constructing a high-precision three-dimensional point cloud.

Benefits of technology

It achieves high-precision defect identification of inverted siphons under high flow rate conditions, improving the accuracy and stability of detection, while adapting to different water environment changes and optimizing equipment energy consumption and detection efficiency.

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Abstract

The application discloses a kind of inverted siphon pipe water environment three-dimensional defect detection method and system, and the real-time water flow parameter in inverted siphon pipe is acquired by real-time acquisition of underwater detection equipment;Detection area is divided into three sub-regions of ascending section, top horizontal section and descending section;Segmented flow field model is constructed for sub-region, and local water flow velocity vector of each sub-region is output;Based on local water flow velocity vector, the effective propagation velocity of sound wave in water flow medium is corrected, and the corrected effective propagation velocity is obtained;Based on the corrected effective propagation velocity, control underwater detection equipment to emit sound wave and receive echo signal, and obtain original acoustic data;Based on original acoustic data and the corrected effective propagation velocity, three-dimensional point cloud data is constructed;Three-dimensional point cloud data is identified by defect identification model, and defect detection result is output.The application solves the problems of low three-dimensional reconstruction accuracy and large error at high flow rate in the prior art.
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