General Electric Company
REPLACING VIRTUAL SENSORS WITH PHYSICAL DATA AFTER CYBER-ATTACK NEUTRALIZATION

Abstract:

An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, the system may automatically replace monitoring node values from the at least one abnormal monitoring node currently being attacked or experiencing a fault with virtual node values. The system may also determine when the abnormal monitoring node or nodes will switch from the virtual node values back to monitoring node values.