Method and system for state encoding

• US 8,643,471 B2
• Filed: 06/16/2008
• Issued: 02/04/2014
• Est. Priority Date: 06/15/2007
• Status: Active Grant

• Current Assignee: Shell USA Incorporated (Shell Plc)
• Original Assignee: Shell Oil Company (Shell Plc)
• Inventors: Kong, James Po
• Primary Examiner(s): Zimmerman, Brian
• Assistant Examiner(s): Patel, Bhavin M
• Application Number:
  US12/664,103
• Publication Number:
  US 20100214069A1
• Time in Patent Office: 2,059 Days
• Field of Search: 340/506, 340/517, 340521-523, 3408701-87038, 340/850, 340/539.1, 34053922-53929, 340/10.1
• US Class Current: 340/10.1
• CPC Class Codes: G05B 23/0229 knowledge based, e.g. expert systems; genetic algorithms
• CPC Class Codes: G06K 7/10009 sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves

Abstract

A system including equipment, sensors for measuring the equipment'"'"'s operating parameters, a signature generator for encoding data streams from the sensors into operating signatures for the equipment, a pattern repository for storing patterns including classified signatures and frequencies, and a signature analyzer for comparing operating signatures to patterns.

Claims

1. A system comprising:

at least one piece of equipment;

a plurality of sensors adapted to measure one or more operating parameters of the equipment;

a signature generator adapted to encode a plurality of data streams from the sensors into an operating signature for the equipment;

a pattern repository comprising a pattern, wherein the pattern comprises a classified signature and a frequency specifying a number of occurrences of the classified signature over time; and

a signature analyzer configured to compare the operating signature to the pattern and perform an action based on the comparison.

2. The system of claim 1, further comprising:

an action repository comprising a number of actions, wherein the action performed by the signature analyzer is one of the number of actions.

3. The system of claim 1, wherein the operating signature comprises at least two of a high, normal, and low range bit string.

4. The system of claim 3, wherein:

the signature generator converts the bit string to a number.