基于联合训练的浮法玻璃缺陷预测性监控方法及系统

By using a joint training method, the frequency mismatch between high-frequency process data and low-frequency defect data in float glass production was solved, achieving high-precision defect prediction and realizing the transformation from post-production detection to pre-production early warning, thereby improving production efficiency and product quality rate.

CN121328341BActive Publication Date: 2026-07-17QINHUANGDAO DONGCHEN TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QINHUANGDAO DONGCHEN TECH CO LTD
Filing Date
2025-11-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, float glass defect detection mainly relies on post-processing inspection, which leads to lag issues. Furthermore, due to the frequency mismatch between high-frequency process data and low-frequency defect data, it is difficult to establish an accurate mapping relationship, resulting in poor defect prediction accuracy.

Method used

A joint training-based approach is adopted, which generates high-quality pseudo-labels by iteratively training the initial time series prediction model and the defect soft measurement model. Combined with multi-task learning and adaptive weighted loss, the model parameters are optimized to achieve effective fusion of high-frequency process data and low-frequency defect data.

Benefits of technology

It has enabled a shift from post-inspection to pre-inspection, predicting defects tens of minutes to an hour in advance, improving prediction accuracy and interpretability, and achieving a leap from passive quality control to proactive quality assurance.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供一种基于联合训练的浮法玻璃缺陷预测性监控方法及系统,包括:获取浮法玻璃生产过程中的历史多维过程数据和历史产品缺陷数据,其中,多维过程数据的第一采集频率高于产品缺陷数据的第二采集频率;基于历史多维过程数据和历史产品缺陷数据,对初始时间序列预测模型和初始缺陷软测量模型进行交替迭代式联合训练,得到最终的时间序列预测模型和缺陷软测量模型;输入实时采集的多维过程数据至最终的时间序列预测模型,输出过程数据预测序列;输入过程数据预测序列至最终的缺陷软测量模型,输出与过程数据预测序列在时间上逐点对应的、频率为第一采集频率的连续缺陷预测序列,有效提升了缺陷预测的精准度。
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