Method and device for constructing digital twin channel scene in combination with electronic channel chart

By differentially processing water depth data and employing Kriging and inverse distance weighted interpolation methods, combined with 3D modeling technology, the problem of balancing accuracy and efficiency in terrain areas in digital twin waterway scenarios was solved, improving the realism and real-time performance of the model.

CN121482308BActive Publication Date: 2026-06-30FUJIAN PORT & SHIPPING SURVEY & DESIGN INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIAN PORT & SHIPPING SURVEY & DESIGN INST CO LTD
Filing Date
2025-11-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

When constructing digital twin waterway scenarios, existing technologies cannot meet the accuracy and efficiency requirements of different terrain regions with a single interpolation method, resulting in insufficient model realism and real-time performance.

Method used

By acquiring water depth data in real time, dividing it into multiple water depth point sets, analyzing trend components and fitting errors, determining interpolation feature values, using differentiated interpolation to process key and non-key points, and combining 3D modeling technology to construct a waterway scene.

Benefits of technology

It achieves high-precision modeling in key areas while improving the model's realism and update efficiency, thus balancing the overall realism and real-time performance of the model.

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Abstract

This application relates to digital twin 3D modeling, specifically to a method and device for constructing a digital twin waterway scene using electronic navigation charts. The method includes: analyzing the historical trend of water depth values ​​at each depth point to determine the inherent terrain feature values ​​of each depth point set at the current time; determining the terrain ruggedness feature value by fitting the last data point in the temporal sequence of the trend components of all depth points in each depth point set at the current time with its fitted value and the fitting error; and determining interpolation feature values ​​by combining the inherent terrain feature values ​​to classify all depth points into critical and non-critical points; and performing interpolation processing on the water depth values ​​of all critical and non-critical points using different interpolation methods respectively. This application solves the problem that a single interpolation method cannot simultaneously ensure the realism and real-time performance of the model construction, thus improving the realism and real-time performance of the digital twin waterway scene model.
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