Patent ID: 11874930
Assignee: BATTELLE ENERGY ALLIANCE, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. A non-transitory computer-readable storage medium comprising instructions configured to cause a processor to implement operations for anomaly detection in a cyber-physical system (CPS), the operations comprising:
deriving a physics-based correlation from a configuration of one or more physical components of the CPS, the physics-based correlation defining a mathematical relationship between a plurality of physical attributes of the CPS, the plurality of physical attributes comprising a first physical attribute and a second physical attribute;
acquiring measurements of respective physical attributes of the plurality of physical attributes from the CPS, the measurements associated with a capture time;
applying the mathematical relationship defined between the plurality of physical attributes to determine an estimated value for the first physical attribute at the capture time based, at least in part, on a measurement of the second physical attribute associated with the capture time;
determining an anomaly detection metric for the capture time, the anomaly metric based, at least in part, on a first metric configured to quantify a degree to which the acquired measurements conform to the mathematical relationship defined between the plurality of physical attributes by the physics-based correlation, the first metric based, at least in part, on an error between a measurement of the first physical attribute associated with the capture time and the estimated value of the first physical attribute determined for the capture time; and
detecting an anomaly pertaining to the CPS based, at least in part, on the anomaly detection metric.