The invention discloses a fault diagnosis method and system for an elevator driving host, and relates to the technical field of fault diagnosis of the elevator driving host, and the method comprises the steps: obtaining the operation data of a to-be-detected elevator driving host in various working states, and extracting characteristic parameters; preprocessing the extracted characteristic parameters based on a time sequence; correlation analysis is conducted on the characteristic parameters subjected to time sequence preprocessing, and weight parameters influencing the elevator driving host are comprehensively analyzed; and a fault diagnosis model is constructed based on the weight parameters obtained through comprehensive analysis, and real-time fault diagnosis is conducted on the elevator driving host to be detected through the fault diagnosis model. According to the method, the fault diagnosis model based on the random forest model is constructed, the random forest model is optimized through the probability search algorithm, the matching degree of the decision trees is calculated, and the decision trees with the best matching degree are selected to be combined into the new random forest model, so that the detection precision of the model can be improved, and the detection success rate is increased.

    本发明公开了一种电梯驱动主机的故障诊断方法及系统,涉及电梯驱动主机故障诊断技术领域,包括:获取待测电梯驱动主机各种工作状态下的运行数据,提取特征参数;对提取到的特征参数进行基于时序的预处理;对经过时序预处理的特征参数进行相关性分析,综合分析影响电梯驱动主机的权重参数;基于综合分析得到的权重参数构建故障诊断模型,通过故障诊断模型对待测电梯驱动主机进行实时故障诊断。本发明通过构建基于随机森林模型的故障诊断模型,通过概率搜索算法优化随机森林模型,通过计算决策树的匹配度,选择匹配度最佳的决策树组合成新的随机森林模型,从而可以提高模型的检测精度,提高检测成功率。


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    Title :

    Fault diagnosis method and system for elevator driving host


    Additional title:

    一种电梯驱动主机的故障诊断方法及系统


    Contributors:
    YUAN JINGJIE (author) / KANG DUGANG (author) / CHEN ZHUO (author) / ZHANG LEI (author) / LYU XIAO (author) / LIU YU (author) / HE YANG (author) / QIU YONGJUN (author) / JIA HAIJUN (author) / JIA SHANGYUAN (author)

    Publication date :

    2024-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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