Apparatus and method for the remote monitoring of machine condition

  • US 5,845,230 A
  • Filed: 01/30/1997
  • Issued: 12/01/1998
  • Est. Priority Date: 01/30/1996
  • Status: Expired due to Term
First Claim
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1. A system for monitoring the condition of rotating machinery, comprising:

  • a plurality of stationary machines, each of said machines comprising a rotating shaft supported on bearings;

    a plurality of vibration transducers, at least one of which is associated with each of said plurality of stationary machines, and which are configured to produce analog output signals indicative of bearing vibrations;

    a plurality of signal conditioning circuits, at least one of which is associated with each of said plurality of stationary machines, wherein each signal conditioning circuit is configured to condition and digitize said analog output signals from at least one of said plurality of vibration transducers so as to produce a plurality of streams of digital vibration data;

    a plurality of satellite transmitters, at least one of which is associated with each of said plurality of stationary machines, wherein said satellite transmitters are configured to independently transmit said streams of digital vibration data over a first communication link comprising a satellite communication link;

    a satellite hub station remote from said plurality of stationary machines configured to receive all of said streams of digital vibration data over said first communication link, said satellite hub station comprising a memory for storing said streams of digital vibration data and additionally comprising a first modem for either continuously or periodically transmitting one or more of said streams of digital data over a second communication link separate from said first communication link; and

    a control room remote from both said plurality of stationary machines and said satellite hub station said control room comprising a second modem configured to receive either continuously or periodically said one or more of said streams of digital data from said second communication link separate from said first communication link, said control room additionally comprising a vibration data analysis system, whereby the condition of said machines may be monitored at said control room remote from said stationary machines.

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