To grasp a state of a deck crane accurately.SOLUTION: A state determination method of a deck crane, which determines a state of a deck crane disposed on a deck of a marine vessel, includes: a hydraulic pressure information acquiring step of acquiring a time waveform of a hydraulic pressure by measuring the hydraulic pressure in a hydraulic circuit for driving the deck crane for each time; a waveform generation step for generating a hydraulic pressure waveform for each frequency by performing Fourier transformation on the time waveform of the hydraulic pressure; and a state determination step for determining a state of the deck crane on the basis of the hydraulic pressure waveform for each frequency generated in the waveform generation step and a predetermined normal hydraulic pressure waveform which is a hydraulic pressure waveform for each frequency on the deck crane in a normal mode.SELECTED DRAWING: Figure 5

    【課題】デッキクレーンの状態を的確に把握する。【解決手段】デッキクレーンの状態判断方法は、船舶のデッキに配置されるデッキクレーンの状態判断方法であって、デッキクレーンを駆動するための油圧回路における油圧を時間毎に測定して、油圧の時間波形を取得する油圧情報取得ステップと、油圧の時間波形をフーリエ変換することで、周波数毎の油圧波形を生成する波形生成ステップと、波形生成ステップにおいて生成した周波数毎の油圧波形と、予め設定された正常時のデッキクレーンにおける周波数毎の油圧波形である正常油圧波形とに基づき、デッキクレーンの状態を判断する状態判断ステップと、を有する。【選択図】図5


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    Title :

    STATE DETERMINATION METHOD OF DECK CRANE, STATE DETERMINATION DEVICE OF DECK CRANE, AND DECK CRANE SYSTEM


    Additional title:

    デッキクレーンの状態判断方法、デッキクレーンの状態判断装置及びデッキクレーンシステム


    Contributors:

    Publication date :

    2019-09-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL



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