Provided is an abnormality detection device, in which a sound signal acquisition unit connected to a passenger conveyor converts a sound wave around each of inspection guide shoes mounted to a step into a sound signal. A sound signal analysis unit analyses the sound signal and extracts a sound pressure or a main frequency. The controller has not only a function as a command unit configured to command an operation for causing the step to run but also a function as an abnormality determination unit configured to determine an abnormality in skirt guards based on the sound pressure or the main frequency. The sound signal analysis unit in the abnormality detection device analyzes the sound signal acquired by the sound signal acquisition unit under a state in which the step is caused to run, and extracts the sound pressure or the main frequency.


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    Title :

    DEVICE FOR DETECTING ABNORMALITY IN PASSENGER CONVEYOR


    Contributors:
    OKUDA RYU (author) / DOI SHINGO (author)

    Publication date :

    2021-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS





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    OKUDA RYU / DOI SHINGO | European Patent Office | 2019

    Free access

    DEVICE FOR DETECTING ABNORMALITY IN PASSENGER CONVEYOR

    OKUDA RYU / DOI SHINGO | European Patent Office | 2021

    Free access

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