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Methods for using digitized sound patterns to monitor operation of automated machinery

  • US 9,945,755 B2
  • Filed: 09/30/2015
  • Issued: 04/17/2018
  • Est. Priority Date: 09/30/2014
  • Status: Active Grant
First Claim
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1. In a corrugator that converts paper webs into corrugated paperboard sheets, a method for monitoring operation of corrugator machinery, the method comprising:

  • with a sensor, converting an actual sound pattern generated by an operating corrugator machine into an audio signal;

    receiving the audio signal with a controller, and with the controller, digitizing the audio signal to create a real-time acoustic fingerprint unique to the actual sound pattern;

    with the controller, accessing a reference database in a storage system, the reference database containing a plurality of stored acoustic fingerprints, each stored acoustic fingerprint in the plurality of stored acoustic fingerprints representing a unique sound pattern associated with a particular operating condition of the corrugator machine;

    comparing the real-time acoustic fingerprint to the plurality of stored acoustic fingerprints in the reference database with the controller; and

    in response to detecting a match between the real-time acoustic fingerprint and one of the plurality of stored acoustic fingerprints with the controller, generating an output command with the controller, which output command is associated with the particular operating condition in the storage system;

    receiving and carrying out the output command at a component of the corrugator machine.

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