System and method for monitoring rotating and reciprocating machinery
First Claim
1. An apparatus comprising:
- an input interface configured to receive multiple input signals, each input signal associated with a respective stage of a rotating or reciprocating system;
a processing unit configured to identify a fault in the rotating or reciprocating system using the input signals, wherein the processing unit is configured to identify the fault by;
generating a first pressure-volume diagram associated with a first stage of the rotating or reciprocating system and a second pressure-volume diagram associated with a second stage of the rotating or reciprocating system from a fusion of the input signals; and
comparing the first and second pressure-volume diagrams to determine whether a problem exists in at least one of the stages;
an output interface configured to provide an indicator identifying the fault.
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Abstract
A system includes multiple sensors configured to measure one or more characteristics of a rotating o reciprocating systems. The system also includes a monitoring system configured to monitor a health of the rotating system. The monitoring system includes an input interface configured to receive multiple input signals from the sensors. The monitoring system also includes a processing unit configured to identify a fault in the rotating system using the input signals. The monitoring system further includes an output interface configured to provide an indicator identifying the fault. The processing unit is configured to identify the fault by (i) generating a pressure-volume diagram from a fusion of the input signals and comparing the pressure-volume diagram to a previous diagram to determine changes in the diagrams and/or (ii) normalizing the input signals and using the normalized input signals to identify a defect and calculate a confidence level of the defect.
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Citations
20 Claims
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1. An apparatus comprising:
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an input interface configured to receive multiple input signals, each input signal associated with a respective stage of a rotating or reciprocating system; a processing unit configured to identify a fault in the rotating or reciprocating system using the input signals, wherein the processing unit is configured to identify the fault by; generating a first pressure-volume diagram associated with a first stage of the rotating or reciprocating system and a second pressure-volume diagram associated with a second stage of the rotating or reciprocating system from a fusion of the input signals; and comparing the first and second pressure-volume diagrams to determine whether a problem exists in at least one of the stages; an output interface configured to provide an indicator identifying the fault. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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an input interface configured to receive multiple input signals, each input signal associated with a respective stage of reciprocating system; a processing unit configured to identify a fault in the rotating or reciprocating system using the input signals, wherein the processing unit is configured to identify the fault by normalizing the input signals and using the normalized input signals to identify a defect and calculate a confidence level of the defect; and an output interface configured to provide an indicator identifying the fault; wherein the processing unit is configured to normalize the input signals using at least one of;
a root mean square (RMS) value and a Kurtosis value.
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9. An apparatus comprising:
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an input interface configured to receive multiple input signals, each input signal associated with a respective stage of a rotating or reciprocating system; a processing unit configured to identify a fault in the rotating or reciprocating system using the input signals, wherein the processing unit is configured to identify the fault by generating a pressure-volume diagram from a fusion of the input signals and comparing the pressure-volume diagram to another diagram to determine changes in the diagrams; and an output interface configured to provide an indicator identifying the fault; wherein the processing unit is configured to generate the fusion by performing at least one of; a fuzzy fusion; a Dempster-Shafer fusion; and a Bayesian fusion.
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10. A system comprising:
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multiple sensors configured to measure one or more characteristics of a rotating or reciprocating system; and a monitoring system configured to monitor a health of the rotating or reciprocating system, the monitoring system comprising; an input interface configured to receive multiple input signals from the sensors; a processing unit configured to identify a fault in the rotating or reciprocating system using the input signals, wherein the processing unit is configured to identify the fault by; generating a first pressure-volume diagram associated with a first stage of the rotating or reciprocating system and a second pressure-volume diagram associated with a second stage of the rotating or reciprocating system from a fusion of the input signals; and comparing the first and second pressure-volume diagrams to determine whether a problem exists in at least one of the stages; and an output interface configured to provide an indicator identifying the fault. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A system comprising:
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multiple sensors configured to measure one or more characteristics of a rotating or reciprocating system; and a monitoring system configured to monitor a health of the rotating or reciprocating system, the monitoring system comprising; an input interface configured to receive multiple input signals from the sensors; a processing sing unit configured to identify a fault in the rotating or reciprocating system using the input signals, wherein the processing unit is configured to identify the fault by generating a pressure-volume diagram from a fusion of the input signals and comparing the pressure-volume diagram to another diagram to determine changes in the diagrams; and an output interface configured to provide an indicator identifying the fault; wherein the processing unit is configured to generate the fusion by performing at least one of; a fuzzy fusion; a Dempster-Shafer fusion; and a Bayesian fusion.
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18. A method comprising:
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receiving multiple input signals, each input signal associated with a respective stage of a rotating or reciprocating system; identifying a fault in the rotating or reciprocating system using the input signals, wherein the fault is identified by; generating first a pressure-volume diagram associated with a first stage of the rotating or reciprocating system and a second pressure-volume diagram associated with a second stage of the rotating or reciprocating system from a fusion of the input signals; and comparing the first and second pressure-volume diagrams to determine whether a problem exists in at least one of the stages; and providing an indicator identifying the fault. - View Dependent Claims (19)
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20. A non-transitory computer readable medium embodying a computer program, the computer program comprising computer readable program code for:
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receiving multiple input signals, each input signal associated with a respective stage of a rotating or reciprocating system; identifying a fault in the rotating or reciprocating system using the input signals, wherein the fault is identified by; generating first a pressure-volume diagram associated with a first stage of the rotating or reciprocating system and a second pressure-volume diagram associated with a second stage of the rotating or reciprocating system from a fusion of the input signals; and comparing the first and second pressure-volume diagrams to determine whether a problem exists in at least one of the stages; and providing an indicator identifying the fault.
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Specification