The invention relates to the field of communication, and discloses a coder, external diagnosis equipment and an on-line diagnosis and adjustment method. The on-line diagnosis and adjustment method includes the following steps that if the basic state of the coder is normal, the external diagnosis equipment reads operation parameters of the coder from a register in the coder through an I2C interface in the coder, wherein the operation parameters include the amplitude value, direct-current offset and phase of an output signal of the coder; the external diagnosis equipment determines the operation state of the coder according to the operation parameters, and adjusts the operation parameters according to the operation state until the operation parameters are within a preset range, and otherwise it is judged that the coder is abnormal. In this way, the external diagnosis equipment can remotely read the operation parameters in the register in the coder on line through the I2C driving interface and remotely adjust the operation parameters on line, it is unnecessary to repair the coder through disassembling the coder, then the design complexity is lowered, and the adjustment reliability of the coder is improved.


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    Title :

    Coder, external diagnosis equipment and on-line diagnosis and adjustment method


    Contributors:
    WANG PENG (author) / DU CHAO (author) / LIN KAIWEI (author)

    Publication date :

    2015-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B66B Aufzüge , ELEVATORS



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