HEALTH CAPABILITY DETERMINATION SYSTEM AND METHOD
First Claim
1. A method of determining a capability of a system, comprising the steps of:
- representing a capability of the system as at least a lowest-level capability, the lowest-level capability quantifiably impacted by one or more system faults, when present, and by no other capabilities of the system;
representing the quantifiable impact of the one or more faults on the lowest-level capability as a function of the one or more system faults on the lowest-level capability; and
computing a value of the capability of the system from at least the one or more system faults that are present.
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Abstract
A system and method are provided for the determining of the potential effect(s) that a degraded system, subsystem, or component may have on the overall capabilities of a vehicle or other system, and any mitigating actions that may need to be taken. Mission-related capabilities of the system are decomposed into a plurality of lower-level capabilities that have an impact on the mission-related capabilities. One or more faults that have an impact on at least one of the lower-level capabilities are mapped to appropriate lower-level capabilities. The lower-level capabilities to which the one or more vehicle faults is mapped are computed, and values of the mission-related capabilities are computed from each of the lower-level capabilities.
38 Citations
24 Claims
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1. A method of determining a capability of a system, comprising the steps of:
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representing a capability of the system as at least a lowest-level capability, the lowest-level capability quantifiably impacted by one or more system faults, when present, and by no other capabilities of the system; representing the quantifiable impact of the one or more faults on the lowest-level capability as a function of the one or more system faults on the lowest-level capability; and computing a value of the capability of the system from at least the one or more system faults that are present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of determining a capability of a system, comprising the steps of:
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representing a capability of the system as at least a lowest-level capability, the lowest-level capability quantifiably impacted by one or more system parameters and by no other capabilities of the system; representing the quantifiable impact of the one or more system parameters on the lowest-level capability as a function of the one or more system parameters on the lowest-level capability; and computing a value of the capability of the system from at least the one or more system parameters that are present.
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23. A method of determining capabilities of a system, comprising the steps of:
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representing capabilities of the system as a directed acyclic graph that includes one or more higher-level capabilities and a constant capability, each higher-level capability quantifiably impacted by the constant capability or one or more other higher-level capability; and computing a value of each higher-level capability from the constant capability or the one or more other higher-level capabilities.
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24. A system health capabilities system, comprising:
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a plurality of sensors, each sensor operable to sense a system parameter and supply sensor data representative thereof; system health capability reasoner means having capability data stored therein, the capability data representative of a system capability that is represented as at least a lowest-level capability, the lowest-level capability quantifiably impacted by one or more system faults and by no other capabilities of the system, the quantifiable impact of the one or more faults on the lowest-level capability represented as a function of the one or more system faults on the lowest-level capability, the system health capability reasoner means for; receiving the sensor data, determining whether one or more of the system faults is present, determining the quantifiable impact of each fault that is present on the lowest-level capability, and computing a value of the capability of the system from at least the lowest-level capability.
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Specification