石化高温设备疲劳监测评估与异常报警装置及报警方法

By combining wavelet phase coherence calculation and hidden semi-Markov change point detection in petrochemical high-temperature equipment, fatigue state alarm frames are generated, solving the problem of converting wireless link state changes into evidence of structural deformation and realizing reliable fatigue anomaly alarm.

CN122409233APending Publication Date: 2026-07-17FUJIAN LUYUAN INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJIAN LUYUAN INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2026-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In wireless network fatigue monitoring of petrochemical high-temperature equipment, existing technologies cannot effectively convert changes in wireless link status into evidence of structural deformation, resulting in a lack of credible evidence for fatigue anomaly alarms. In particular, it is difficult to accurately trigger alarms when there are abnormal high-temperature strains and wireless communication interference.

Method used

By acquiring high-temperature strain and pressure data, combined with wavelet phase coherence calculation and hidden semi-Markov change point detection, fatigue state alarm frames are generated, and a reliable fatigue anomaly alarm is formed using a wireless transmission system and a state alarm device.

Benefits of technology

It enhances the evidentiary basis for fatigue anomaly alarms, reduces the risk of evidence mismatch, improves the identification of fatigue change points, reduces false alarms, and provides a reliable alarm mechanism based on structural deformation and associated links.

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Abstract

本发明公开了石化高温设备疲劳监测评估与异常报警装置及报警方法,具体涉及特种设备安全监测与异常报警技术领域,包括获取目标运行段热应力仿真结果,由应力集中坐标生成危险截面编号,沿受力路径锁定高温应变节点,再沿无线组网回传方向逐跳写入中继节点和回传帧位号,输出截面组网索引表;依据截面组网索引表,高温应变节点按采样位号采集截面应变,压力端按同一采样轮次生成压力位号,无线传输系统按回传帧位号逐跳写入电平和到达位号,输出同轮记录;通过将危险截面的高温应变、压力起变位和无线回传电平写入同轮记录,对应变变化与链路扰动执行小波相位相干计算,并结合隐半马尔可夫变化点检测和疲劳损伤校核生成疲劳状态报警帧。
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