Thunderstorm gale prediction method, system and device based on centralized sampling and multi-branch fusion

CN122410667BActive Publication Date: 2026-10-16TONGLING POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO
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Patent Information

Application Number
CN202610525865.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-21
Publication Date
2026-10-16
Estimated Expiration
2046-04-21

AI Technical Summary

Technical Problem

[0006]为了克服现有技术的上述缺陷,本发明的实施例提供基于中心化采样与多分支融合的雷暴大风预报方法、系统及设备,以解决因极端样本不平衡导致无法准确预测短期内雷暴大风落区与雷暴大风发生概率的问题

Benefits of technology

1.本发明通过采用中心化采样策略截取预报区域的雷达回波序列,基于雷达回波序列聚焦关键区域,并对雷达回波序列进行多分支特征提取和分支特征交互,从多分支角度全面评估全局融合特征,保证最大化正样本利用率,有效解决极端样本不平衡的问题。

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Abstract

The application discloses a thunderstorm gale prediction method and system based on centralized sampling and multi-branch fusion, and equipment, relates to the meteorological prediction technical field, and includes: adopting centralized sampling to intercept the radar echo sequence of a prediction area; performing multi-branch feature extraction on the radar echo sequence to obtain double-dimension splicing features, and performing branch feature interaction on the double-dimension splicing features to obtain global fusion features; extracting physical constraint features of the prediction area, and constructing physical-global fusion features based on the physical constraint features and the global fusion features; performing coordinate regression and logistic regression calculation based on the physical-global fusion features to obtain the thunderstorm gale occurrence probability of the thunderstorm gale drop point in a short term. The application is used to solve the problem that the thunderstorm gale drop area and the thunderstorm gale occurrence probability in a short term cannot be accurately predicted.
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