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MACHINE DIAGNOSTIC APPARATUS AND MACHINE DIAGNOSTIC METHOD

  • US 20180011480A1
  • Filed: 01/20/2015
  • Published: 01/11/2018
  • Est. Priority Date: 01/20/2015
  • Status: Active Grant
First Claim
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1. A machine diagnostic apparatus comprising:

  • a sensor data acquisition unit that acquires time-series measurement data measured by a sensor from the sensor attached to a machine having one or more operation modes;

    an operation mode data creation unit that creates operation mode data defining the operation mode of the machine based on time-series data of an amplitude and a frequency of at least one piece of time-series measurement data acquired in the past via the sensor data acquisition unit, and stores the operation mode data in a storage device;

    an operation mode specifying unit that specifies the operation mode of the machine by comparing the time-series data of the amplitude and the frequency of the measurement data to the operation mode data stored in the storage device when acquiring the time-series measurement data via the sensor data acquisition unit; and

    an abnormality diagnosis unit that processes the time-series measurement data acquired via the sensor data acquisition unit and diagnoses abnormality of the machine according to diagnosis procedure information that is set in advance depending on the operation mode that is specified in the operation mode specifying unit and an abnormality mode of the machine.

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