Machine condition monitoring using pattern rules
First Claim
1. A method of machine condition monitoring comprising:
- comparing a condition signal pattern to a plurality of known signal patterns; and
determining a machine condition pattern rule based at least in part on the comparison of the condition signal pattern to one of the plurality of known signal patterns.
3 Assignments
0 Petitions
Accused Products
Abstract
Pattern rules are created by comparing a condition signal pattern to a plurality of known signal patterns and determining a machine condition pattern rule based at least in part on the comparison of the condition signal pattern to one of the plurality of known signal patterns. A matching score based on the comparison of the condition signal pattern to one of the plurality of known signal patterns as well as a signal pattern duration is determined. The machine condition pattern rule is then defined for nonparametric condition signal patterns as a multipartite threshold rule with a first threshold based on the determined matching score and a second threshold based on the determined signal duration. For parametric signal patterns, one or more parameters of the signal pattern are determined and the machine condition pattern rule is further defined with a third threshold based on the determined one or more parameters.
17 Citations
19 Claims
-
1. A method of machine condition monitoring comprising:
-
comparing a condition signal pattern to a plurality of known signal patterns; and determining a machine condition pattern rule based at least in part on the comparison of the condition signal pattern to one of the plurality of known signal patterns. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for detecting fault conditions comprising:
-
receiving a machine condition signal pattern; determining a duration of the machine condition signal pattern; comparing the received machine condition signal pattern to a plurality of known condition signal patterns; comparing the duration of the received machine condition signal pattern to a duration of at least one of the plurality of known condition signal patterns; and detecting a fault condition based at least in part on the comparison of the received machine condition signal pattern to one of the plurality of known condition signal patterns and the comparison of the duration of the received machine condition signal patterns to the duration of the one of the plurality of known condition signal patterns. - View Dependent Claims (7)
-
-
8. An apparatus for machine condition monitoring comprising:
-
means for comparing a condition signal pattern to a plurality of known signal patterns; and means for determining a machine condition pattern rule based at least in part on the comparison of the condition signal pattern to one of the plurality of known signal patterns. - View Dependent Claims (9, 10, 11, 12)
-
-
13. A machine readable medium having program instructions stored thereon, the instructions capable of execution by a processor and defining the steps of:
-
comparing a condition signal pattern to a plurality of known signal patterns; and determining a machine condition pattern rule based at least in part on the comparison of the condition signal pattern to one of the plurality of known signal patterns. - View Dependent Claims (14, 15, 16, 17)
-
-
18. A machine readable medium having program instructions for detecting fault conditions stored thereon, the instructions capable of execution by a processor and defining the steps of:
-
receiving a machine condition signal pattern; determining a duration of the machine condition signal pattern; comparing the received machine condition signal pattern to a plurality of known condition signal patterns; comparing the duration of the received machine condition signal pattern to a duration of at least one of the plurality of known condition signal patterns; and detecting a fault condition based at least in part on the comparison of the received machine condition signal pattern to one of the plurality of known condition signal patterns and the comparison of the duration of the received machine condition signal patterns to the duration of the one of the plurality of known condition signal patterns. - View Dependent Claims (19)
-
Specification