Cross-fault-domain zero-trust security arbitration system for non-deterministic controller and hierarchical response method based on effect verification

Abstract

The application discloses a cross-fault-domain zero-trust security arbitration system for a non-deterministic controller and a hierarchical response method based on effect verification, and relates to the technical field of non-deterministic controller security arbitration. The control unit is used for running a non-deterministic control strategy to generate a control instruction; a residual energy accumulation module is arranged in the security unit, and a deviation between the control instruction and an actual execution effect is accumulated as a residual energy accumulation metric Σe(t) in a sliding time window; a hierarchical response is triggered when Σe(t) exceeds a dynamic threshold; the security unit is used for calculating a risk degree and combining the residual energy accumulation metric, and when the risk degree or the residual energy accumulation metric exceeds a corresponding dynamic threshold, a corresponding hierarchical response is triggered, an enable signal of the security unit is output in a failure state, and a lock trigger signal is output; no matter what state the control instruction is in, when the enable signal is in a failure state, a lock state signal output by an interlocking reset module is received, or in the case of energy loss, a blocking state is entered, and a system security lock response time τ_lock is satisfied.

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