×

Industrial process surveillance system

  • US 6,181,975 B1
  • Filed: 02/24/1998
  • Issued: 01/30/2001
  • Est. Priority Date: 06/19/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for monitoring a plurality of data sources in order to determine a pattern characteristic of a system, comprising the steps of:

  • accumulating data over time from the data sources;

    processing the data to obtain optimum time correlation of the data accumulated from the plurality of data sources;

    determining learned states of at least one desired pattern of the system;

    using the learned states to generate expected data values of the data accumulated over time from the data sources of the system;

    comparing the expected data values to current actual data values of the data from the data sources to identify a current state of the system closest to one of the learned states and generating a set of modeled data; and

    determining from the modeled data a pattern for the current actual values and if the pattern deviates from a pattern characteristic of the desired pattern, an alarm notice is provided.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×