基于时序知识图谱的复杂工业异常工况因果推理预警方法

By constructing a temporal knowledge graph, quantifying causal strength, and performing causal reasoning, the interpretability and dynamic monitoring of abnormal operating conditions in complex industrial processes are solved, realizing a cross-domain applicable early warning method and improving the safety and efficiency of industrial processes.

CN122200957BActive Publication Date: 2026-07-17SHANDONG UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for monitoring and early warning of abnormal industrial conditions lack interpretability, static knowledge representation cannot capture dynamic evolution, causal relationship modeling is insufficient, and knowledge acquisition efficiency is low, making it difficult to effectively monitor and warn of abnormal conditions in complex industrial processes.

Method used

A time-series knowledge graph-based approach is adopted. By collecting multi-source heterogeneous time-series data, a static domain knowledge graph with multi-level nodes is constructed, causal strength is quantified, and graph neural networks are used for causal reasoning to generate interpretable early warning information.

Benefits of technology

It enables interpretable early warning for complex industrial processes, can monitor and locate root causes online, and supports complete decision support from post-event alarms to pre-event warnings, with cross-domain universality and engineering applicability.

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Abstract

本发明涉工业过程控制与异常监测技术领域,具体涉及基于时序知识图谱的复杂工业异常工况因果推理预警方法,包括采集复杂工业过程在正常工况与各种异常工况下的多源异构时序数据;构建包含多层级节点的静态领域知识图谱本体;量化各级实体间的动态因果强度,并将其作为关系边属性融入静态图谱,形成可动态更新的时序知识图谱;构建时序知识图谱推理模型,完成对异常工况的传播路径与演化趋势进行建模与预测;生成包含根源、路径、趋势及处置建议的可解释预警信息;本发明通过构建多级因果演化链,将传统黑箱模型的输入‑输出映射拆解为具有物理意义的中间子过程,量化状态间的非线性耦合效应对最终质量的影响。
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