A method, device and equipment for generating a spherical grid of multiple grids of a target region

By using dynamic encryption mechanisms and constraint judgments, a spherical multi-cell mesh adapted to the terrain complexity of the target area is generated, which solves the problems of lack of flexibility and compilation complexity of existing tools, improves computational efficiency and accuracy, and meets the needs of operational wave forecasting.

CN122415946APending Publication Date: 2026-07-17NAT MARINE ENVIRONMENTAL FORECASTING CENT +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT MARINE ENVIRONMENTAL FORECASTING CENT
Filing Date
2026-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing spherical multi-mesh generation tools lack flexibility and cannot automatically adjust the mesh level according to the terrain data of the target area, resulting in a contradiction between computational efficiency and resolution. Furthermore, the compilation environment is complex and user requirements are high.

Method used

By acquiring terrain data of the target area, the basic grid cells are divided along the longitudinal and latitudinal directions based on the terrain data and the preset basic grid side length. Constraint judgment is performed, and the dynamic densification mechanism subdivides the areas that do not meet the constraints step by step, generating spherical multi-grid cells that are adapted to the terrain complexity requirements of different areas.

Benefits of technology

It enables automatic adjustment of grid levels based on the terrain data of the target area, adapting to the terrain complexity requirements of different areas, avoiding waste of computing power, improving computing efficiency and accuracy, and meeting the dual requirements of operational wave forecasting.

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Abstract

本发明实施例提供一种目标区域的球面倍格元网格的生成方法、装置及设备,生成方法包括:获取目标区域的地形数据,地形数据的分辨率与球面倍格元网格的最小层级网格一致;根据地形数据和预设的基础网格边长,沿经向和纬向遍历地形数据,将目标区域划分为多个基础网格单元;对每个基础网格单元进行约束判断,约束判断包括:网格为水域网络且网格的限制半径范围内不存在陆地网格点,若满足约束条件,则纳入球面倍格元网格;若不满足,则将基础网格单元均分为四个下一层级的网格,并重新进行约束判断,直至满足约束条件或分为最小层级网格为止,得到目标区域的球面倍格元网格。本发明实施例能够根据目标区域地形数据调整网格层级。
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