PROBLEM TO BE SOLVED: To provide a communication device of a work machine capable of achieving both safety and operation response.SOLUTION: A communication device of a work machine comprises an upper transceiver 61 for transmitting an operation signal corresponding to an operation of an upper operation device 45 as a radio signal, and a lower transceiver 62 capable of receiving the operation signal from the upper transceiver 61 and transmitting an operation command based on the signal to a lower controller 6. The lower transceiver 62 returns an ACK signal as a radio signal to the upper transceiver 61 when receiving the operation signal from the upper operation device 45, and transmits an operation command based on the operation signal to the lower controller 6. The upper transceiver 61 determines whether or not reception confirmation to the operation signal is necessary in accordance with a content of the operation command. When it is determined that the reception confirmation is necessary, the upper transceiver re-transmits an operation signal to the lower transceiver 62 if the ACK signal corresponding to the operation signal is not returned from the lower transceiver 62.SELECTED DRAWING: Figure 2

    【課題】安全性と操作レスポンスの両立を図ることのできる作業機の通信装置を提供する。【解決手段】上部操作装置45の操作に対応する操作信号を無線信号として送信する上部送受信器61と、上部送受信器61からの操作信号を受信可能で、この信号に基づく操作指令を下部コントローラ6に伝える下部送受信器62とを備え、下部送受信器62は、上部操作装置45からの操作信号を受信した場合はACK信号を無線信号として上部送受信器61に返信するとともに、該操作信号に基づく操作指令を下部コントローラ6に伝え、上部送受信器61は、操作指令の内容に応じて該操作信号に対する受信確認が必要であるか否かを判定し、受信確認が必要であると判定した場合に、該操作信号に対するACK信号が下部送受信器62から返信されてこないときには、該操作信号を下部送受信器62に再送信する。【選択図】図2


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    Titel :

    COMMUNICATION DEVICE OF WORK MACHINE


    Weitere Titelangaben:

    作業機の通信装置


    Beteiligte:
    OBA TAKAAKI (Autor:in) / UMEYAMA MASAHIKO (Autor:in) / KOBAYASHI FUTOSHI (Autor:in)

    Erscheinungsdatum :

    2017-03-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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