Fault isolation method and apparatus in artificial intelligence based air data systems
AssigneeRosemount Aerospace Inc.
InventorsDerrick David Hongerholt, Dennis James Cronin
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Abstract
A method providing fault isolation, in an air data system which uses artificial intelligence to generate an air data parameter, includes generating the air data parameter as a function of a plurality of measured values such as static pressures. Then, estimates of each of the plurality of measured values is generated as a function of the generated air data parameter. Each measured value can then be compared to its corresponding estimate to determine if a difference between the measured value and its corresponding estimate exceeds a threshold and therefore indicates a fault in a device which provides the measured value.
Claims21
A method of providing fault isolation in an air data system which uses artificial intelligence to generate an air data parameter, the method comprising:
- generating the air data parameter as a function of a plurality of measured values;
- and
- generating estimates of each of the plurality of measured values as a function of the generated air data parameter;
- and
- comparing each measured value to a corresponding estimate to determine if a difference between the measured value and the corresponding estimate exceeds a threshold and therefore indicates a fault in a device which provides the measured value, and thereby providing fault isolation in the air data system.
An air data system comprising:
- a plurality of static pressure sensing ports each providing one of a plurality of measured static pressures;
- and
- air data computer circuitry configured to use artificial intelligence to generate an air data parameter as a function of the plurality of measured static pressures, and configured to use artificial intelligence to generate estimates of each of the plurality of measured static pressures as a function of the generated air data parameter.
Dependencies are inferred from the claim text.