Intelligent condition monitoring and fault diagnostic system for preventative maintenance
First Claim
Patent Images
1. A system for condition monitoring and fault diagnosis comprising:
- a first controller having a processor configured to perform a data collection function that acquires time histories of selected variables for one or more of the components according to specified sampling parameters;
a second controller having a processor configured to perform a pre-processing function that calculates specified characteristics of each of the time histories individually;
a third controller having a processor configured to perform an analysis function for evaluating the specified characteristics of each of the individual time histories to produce one or more hypotheses of a condition of the one or more components; and
a fourth controller having a processor configured to perform a reasoning function for determining the condition of the one or more components from the one or more hypotheses;
wherein at least one instance of each function resides in progressively higher level controllers within a machine being monitored such that data required for health monitoring and fault diagnostic purposes are used at a level where intelligence to process that data is present.
7 Assignments
0 Petitions
Accused Products
Abstract
A system for condition monitoring and fault diagnosis includes a data collection function that acquires time histories of selected variables for one or more of the components, a pre-processing function that calculates specified characteristics of the time histories, an analysis function for evaluating the characteristics to produce one or more hypotheses of a condition of the one or more components, and a reasoning function for determining the condition of the one or more components from the one or more hypotheses.
-
Citations
31 Claims
-
1. A system for condition monitoring and fault diagnosis comprising:
-
a first controller having a processor configured to perform a data collection function that acquires time histories of selected variables for one or more of the components according to specified sampling parameters; a second controller having a processor configured to perform a pre-processing function that calculates specified characteristics of each of the time histories individually; a third controller having a processor configured to perform an analysis function for evaluating the specified characteristics of each of the individual time histories to produce one or more hypotheses of a condition of the one or more components; and a fourth controller having a processor configured to perform a reasoning function for determining the condition of the one or more components from the one or more hypotheses; wherein at least one instance of each function resides in progressively higher level controllers within a machine being monitored such that data required for health monitoring and fault diagnostic purposes are used at a level where intelligence to process that data is present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of component condition monitoring and fault diagnosis comprising:
-
acquiring time histories of selected variables for one or more of the components according to specified sampling parameters; calculating specified characteristics of each of the time histories individually; evaluating the specified characteristics of each of the individual time histories to produce one or more hypotheses of a condition of the one or more components; determining the condition of the one or more components from the one or more hypotheses; and utilizing the determined condition of the one or more components to determine if preventative maintenance or service is required for the components; wherein at least one instance of a processor configured to perform acquiring time histories, calculating specified characteristics, evaluating the specified characteristics, determining the condition of the one or more components and utilizing the determined condition resides in progressively higher level controllers within a machine being monitored such that data required for health monitoring and fault diagnostic purposes are used at a level where intelligence to process that data is present.
-
-
10. A non-transitory computer readable storage medium encoded with a computer program for component condition monitoring and fault diagnosis, that when run on a computer causes the computer to:
-
acquire time histories of selected variables for one or more components according to specified sampling parameters; calculate specified characteristics of each of the time histories individually; evaluate the specified characteristics of each of the individual time histories to produce one or more hypotheses of a condition of the one or more components; determine the condition of the one or more components from the one or more hypotheses, utilize the determined condition of the one or more components to determine if preventative maintenance or service is required for the components; and initiate at least one instance of a process for acquiring time histories, calculating specified characteristics, evaluating the specified characteristics, determining the condition of the one or more components and utilizing the determined condition in progressively higher level controllers such that data required for component condition monitoring and fault diagnostic purposes are used at a level where intelligence to process that data is present.
-
-
11. A health monitoring and fault diagnostic system comprising:
-
a manager processor; and a memory storing processor readable program code, wherein the manager processor, under control of the processor readable program code operates to; configure at least one component processor operating one or more components, to acquire time histories of selected variables for the one or more components according to specified sampling parameters; configure at least one device processor operating one or more of the component processors together, to calculate specified characteristics of each of the time histories of the component processors operating together; configure at least one subsystem processor operating one or more of the device processors together, to perform an analysis function for evaluating the specified characteristics of each of the time histories of the component processors operating together to produce one or more hypotheses of a condition of the one or more components; and configure a system processor operating one or more of the subsystem processors, to perform a reasoning function for determining a system condition based on the condition of the one or more components. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A method of health monitoring and diagnosing system faults comprising:
-
using a component processor to operate one or more components while acquiring time histories of selected variables for the one or more components according to specified sampling parameters; using a device processor to operate one or more of the component processors together while calculating specified characteristics of each of the time histories of the component processors operating together; using at least one subsystem processor to operate one or more of the device processors together while performing an analysis function for evaluating the specified characteristics of each of the time histories of the component processors operating together to produce one or more hypotheses of a condition of the one or more components; and using a system processor to operate one or more of the subsystem processors while performing a reasoning function for determining a system condition based on the condition of the one or more components. - View Dependent Claims (19, 20, 21, 22, 23, 24)
-
-
25. A non-transitory computer readable medium encoded with a computer program for system health monitoring and fault diagnosis, that when run on a computer, causes the computer to:
-
use a component processor to operate one or more components while acquiring time histories of selected variables for the one or more components according to specified sampling parameters; use a device processor to operate one or more of the component processors together while calculating specified characteristics of each of the time histories of the component processors operating together; use at least one subsystem processor to operate one or more of the device processors together while performing an analysis function for evaluating the specified characteristics of each of the time histories of the component processors operating together to produce one or more hypotheses of a condition of the one or more components; and use a system processor to operate one or more of the subsystem processors while performing a reasoning function for determining a system condition based on the condition of the one or more components. - View Dependent Claims (26, 27, 28, 29, 30, 31)
-
Specification