Machine Anomaly Detection and Diagnosis Incorporating Operational Data
First Claim
1. A method for detecting an anomaly in a machine under test, comprising:
- monitoring operational data from a control unit of the machine under test;
identifying an operational state of the machine under test based on the monitored operational data;
monitoring sensor data from one or more sensors installed within or near to the machine under test;
consulting a model corresponding to the identified operational state of the machine under test to identify one or more key parameters and corresponding normal operating ranges for each determined key parameter; and
determining when a key parameter of the one or more key parameters is not within its corresponding normal operating range based on the monitored sensor data.
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Accused Products
Abstract
A method for detecting an anomaly in a machine under test includes monitoring operational data from a control unit of the machine under test. An operational state of the machine under test is identified based on the monitored operational data. Sensor data is monitored from one or more sensors installed within or near to the machine under test. A model corresponding to the identified operational state of the machine under test is consulted to identify one or more key parameters and corresponding normal operating ranges for each determined key parameter. It is determined when a key parameter of the one or more key parameters is not within its corresponding normal operating range based on the monitored sensor data.
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Citations
24 Claims
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1. A method for detecting an anomaly in a machine under test, comprising:
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monitoring operational data from a control unit of the machine under test; identifying an operational state of the machine under test based on the monitored operational data; monitoring sensor data from one or more sensors installed within or near to the machine under test; consulting a model corresponding to the identified operational state of the machine under test to identify one or more key parameters and corresponding normal operating ranges for each determined key parameter; and determining when a key parameter of the one or more key parameters is not within its corresponding normal operating range based on the monitored sensor data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for detecting an anomaly in a machine under test, comprising a condition based maintenance (CBM) module for receiving machine data or sensor data from one or more sensors installed within or near the machine under test and for receiving operational data from a control module of the machine under test, the CBM module comprising:
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an operational state monitoring and determining unit for receiving the operational data from the control module and identifying an operational state of the machine under test based on the operational data; a sensor data monitoring and matching unit for receiving the machine data or sensor data from the one or more sensors and determining when a key parameter of the sensor data is beyond a normal operating range defined for the identified operational state; and a remediation and alert module for taking remedial action or generating an alert when the key parameter of the sensor data is beyond the normal operating range for the identified operational state. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 24)
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23. A computer system comprising:
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a processor; and a non-transitory, tangible, program storage medium, readable by the computer system, embodying a program of instructions executable by the processor to perform method steps for detecting an anomaly in a machine under test, the method comprising; monitoring operational data from a control unit of the machine under test; identifying an operational state of the machine under test based on the monitored operational data; monitoring sensor data from one or more sensors installed within or near to the machine under test; calculating an operational indicator for expressing an overall operational condition of the machinery under test from the sensor data; consulting a model corresponding to the identified operational state of the machine under test to identify an expected value of the operational indicator and an acceptable measure of deviation therefrom; determining when the operational indicator is not within the acceptable measure of deviation from the expected value based on the monitored sensor data; and automatically initiating a diagnostic routine to identify a malfunction within the machine under test when it is determined that a key parameter is not within its corresponding normal operating range.
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Specification