The invention provides a falling amplitude control method, device and system and a crane, and relates to the technical field of engineering control, the method comprises the following steps: acquiring rodless cavity pressure sampling data, arm length sampling data and cargo boom angle sampling data corresponding to a target sampling moment of the crane; based on the rodless cavity pressure sampling data, the arm length sampling data and the cargo boom angle sampling data, a current compensation coefficient corresponding to the cargo boom at the target sampling moment is determined; determining a target falling amplitude control current corresponding to the target sampling moment based on a target handle opening degree and the current compensation coefficient; and controlling the falling amplitude of the cargo boom in a target control period corresponding to the target sampling moment based on the target falling amplitude control current. According to the invention, self-adaptive control of the amplitude falling speed can be realized, and the operation difficulty and the operation risk are reduced.

    本发明提供一种落幅控制方法、装置、系统和起重机,涉及工程控制技术领域,所述方法包括:获取起重机在目标采样时刻对应的无杆腔压力采样数据、臂长采样数据和起重臂角度采样数据;基于所述无杆腔压力采样数据、所述臂长采样数据和所述起重臂角度采样数据,确定起重臂在所述目标采样时刻对应的电流补偿系数;基于目标手柄开度和所述电流补偿系数,确定所述目标采样时刻对应的目标落幅控制电流;基于所述目标落幅控制电流控制所述起重臂在所述目标采样时刻对应的目标控制周期内的落幅。本发明可实现对落幅速度的自适应控制,降低操作难度和操作风险。


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    Title :

    Falling amplitude control method, device and system and crane


    Additional title:

    落幅控制方法、装置、系统和起重机


    Contributors:
    GU RENQING (author) / ZHANG KEZHOU (author) / JIANG FENG (author) / LUO JIANHUA (author) / YAN XIN (author) / YUAN AIJIN (author)

    Publication date :

    2024-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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