AI赋能的工业设备智能化巡检维修方法及系统

The industrial equipment fault diagnosis method, which adaptively determines the sliding window length and weighting mechanism, solves the problems of high false alarm rate and false negative rate in the existing technology, and achieves high accuracy in detecting early faults, ensuring accurate determination of equipment status.

CN122160276BActive Publication Date: 2026-07-17SHANDONG BLUEBIRD IND INTERNET CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG BLUEBIRD IND INTERNET CO LTD
Filing Date
2026-05-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing industrial equipment fault diagnosis methods based on similarity matching algorithms have a high false alarm rate in complex industrial environments, are not sensitive to early faults, and cannot effectively distinguish between normal dynamic interference and real fault characteristics.

Method used

By acquiring the three-phase current sequence of the device motor, performing noise reduction and data conversion, adaptively determining the sliding window length, and combining second-order difference calculation and weighting mechanism, an anomaly detection mechanism is constructed to improve the sensitivity to early faults.

Benefits of technology

It effectively reduced the false alarm rate and the missed alarm rate, improved the detection rate of early faults, and ensured the accurate determination of equipment status.

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Abstract

本发明公开了一种AI赋能的工业设备智能化巡检维修方法及系统,涉及工业运维技术领域,方法包括:获取设备电机当前运行周期的当前瞬时能量序列;选取适配当前运行周期的最优窗口长度,以滑动截取当前瞬时能量序列,得到若干分析窗口;量化每个分析窗口内瞬时能量变化的剧烈程度,得到当前运行周期的能量波动特征序列;从能量波动特征序列中选取截断点,以获取当前运行周期的波形变化特征序列;获取历史正常样本的波形变化特征序列,计算当前运行周期对应的相似度距离;构建异常判定机制,并基于当前运行周期对应的相似度距离对设备状态进行判定。本发明能够更准确的检测出设备的早期隐蔽故障,降低故障诊断的误报率和漏报率。
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