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Machine condition indication system

  • US 8,174,402 B2
  • Filed: 01/11/2008
  • Issued: 05/08/2012
  • Est. Priority Date: 01/31/2005
  • Status: Active Grant
First Claim
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1. A method for determining a probable operational condition of a machine, comprising:

  • (a) acquiring data based upon sensor signals generated by a plurality of sensors attached to the machine, where the sensor signals are indicative of operational characteristics of the machine;

    (b) processing the data to calculate a plurality of operational characteristic parameters indicative of the probable operational condition of the machine;

    (c) operating on the operational characteristic parameters to derive a single probable condition value expressed on a continuous numerical scale, the probable condition value indicative of the probable operational condition of the machine;

    (d) detecting that the probable condition value has fallen below a predetermined threshold;

    (e) upon detecting that the probable condition value has fallen below the predetermined threshold, generating a fault-classification alert which identifies a most likely cause of degradation in the operational condition of the machine based on analysis of the operational characteristic parameters; and

    (f) communicating the probable condition value and the fault-classification alert via a communication network to a central monitoring system,wherein at least steps (a), (b), (c), (d), and (e) are performed by a machine condition reporting device coupled to the machine.

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