The invention discloses an escalator fault diagnosis method based on digital twinning. The method comprises the following steps that an escalator online fault monitoring model is obtained and loaded; escalator measuring point data are collected, wherein the measuring point data comprise vibration waveform data, process quantity data and electromechanical system information; calculating a time domain characteristic value and a frequency domain characteristic value of the vibration signal waveform according to the vibration waveform data, and normalizing the time domain characteristic value and the frequency domain characteristic value; inputting the normalized time domain characteristic value and the frequency domain characteristic value into an escalator fault monitoring model to obtain an independent vibration monitoring result of the escalator measuring point; and inputting the independent vibration monitoring result of the escalator measuring point, the process quantity data and the electromechanical system information into the escalator fault classification tree model, carrying out fault positioning, and carrying out linkage fault analysis to obtain an escalator fault comprehensive diagnosis result. The diagnosis system based on the digital prototype has the advantages of high automation degree, advanced pre-judgment, accurate fault positioning, low false alarm rate, zero missing report rate and the like.

    本发明公开了一种基于数字孪生的扶梯故障诊断方法,所述方法包括以下步骤:获取并加载扶梯在线故障监测模型;采集扶梯测点数据,测点数据包括振动波形数据、过程量数据、机电系统信息;根据振动波形数据计算振动信号波形的时域特征值和频域特征值,并对时域特征值和频域特征值进行归一化;将归一化后的时域特征值和频域特征值输入扶梯故障监测模型,得到扶梯测点的独立振动监测结果;将扶梯测点的独立振动监测结果、过程量数据与机电系统信息输入扶梯故障分类树模型,进行故障定位,通过联动故障分析得到解析扶梯故障综合诊断结果。本发明基于数字样机的诊断系统具有自动化程度高、超前预判、故障定位准确、低误报率和零漏报率等优点。


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    Titel :

    Escalator fault diagnosis method based on digital twinning


    Weitere Titelangaben:

    基于数字孪生的扶梯故障诊断方法


    Beteiligte:
    GAO HUI (Autor:in) / CHEN YU (Autor:in) / ZHAO DALI (Autor:in) / LI XING (Autor:in) / DONG SONGWEI (Autor:in)

    Erscheinungsdatum :

    2023-04-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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