Stale Telemetry
Trigger: Sensor freshness drops below threshold → state confidence degraded
Operational
Sensor freshness within validated threshold
Telemetry Stale
Freshness threshold exceeded
State Validation Failed
Safety Validation classifies signal
Actuation Blocked
Authority Gate rejects commands
Safe Envelope Enforced
Node transitions to bounded behavior
System Stable
Operations within validated bounds
Failure contained locally. No unsafe actuation reached hardware.
System recovered to validated state.
Coordination Bus Unavailable
Trigger: Network partition detected → node transitions to local authority control
Operational
Coordinated node state active
Bus Timeout
Coordination heartbeat missed
Local Authority Asserted
Node assumes autonomous control
Safe Envelope Enforced
Operations within safe envelope
Bus Restored
Coordination reconnected
State Synced
Distributed mode restored
Node maintained safe operation. Coordination restored without data loss.
System recovered to validated state.
Operator Authority Offline
Trigger: Operator console disconnected → autonomous safe mode engaged
Operational
Operator authority active
Authority Timeout
Operator heartbeat lost
Autonomous Safe Mode
Node enters safe autonomous mode
Commands Deferred
Non-critical commands held
Commands Re-Queued
Revalidated against current system state
Queue Processed
Commands re-authorized
System maintained safe state during operator absence.
System recovered to validated state.
Conflicting Commands
Trigger: Contradictory commands received → hierarchy enforcement triggered
Operational
Authority hierarchy valid
Conflict Detected
Contradictory directives received
Hierarchy Resolved
Precedence determined
Subordinate Rejected
Lower-priority command blocked
Audit Logged
Conflict recorded with context
Resolved
Authoritative command executed
Command hierarchy enforced. Full conflict audit available.
System recovered to validated state.
Actuator Failure
Trigger: Hardware fault reported → failsafe transition initiated
Operational
Actuation path validated
Hardware Fault
Actuator error state reported
Actuation Halted
Pending commands suspended
Fallback Engaged
Secondary path activated
Authority Notified
Operator alert dispatched
Safe State
Operation maintained on validated path
Hardware fault isolated. Fallback systems maintained operation.
System recovered to validated state.
Sensor Drift / Calibration Error
Trigger: Sensor variance detected → trust degradation and recalibration
Operational
Sensor readings within expected tolerance
Drift Detected
Variance exceeds threshold
Cross-Validation
Secondary sensors consulted
Trust Reduced
Affected sensor degraded
Auto-Calibration
Recalibration sequence
Validated
Sensor accuracy restored
Sensor integrity maintained through redundancy and recalibration.
System recovered to validated state.
Power Loss / Brownout
Trigger: Voltage anomaly detected → graceful degradation initiated
Operational
Power state nominal
Voltage Anomaly
Power degradation detected
State Persisted
Critical state saved
Safe Position
Actuators to safe state
Power Restored
Recovery initiated
State Recovered
Operation restored from safe state
Graceful degradation. Full state recovery on power restore.
System recovered to validated state.
Cyber Intrusion Attempt
Trigger: Invalid signature detected → security containment activated
Operational
Security posture normal
Signature Invalid
Cryptographic validation failed
Command Rejected
Blocked at Authority Gate
Event Logged
Intrusion attempt recorded
Posture Elevated
Lockdown engaged
Audit Complete
System validated and uncompromised
Zero unauthorized execution. Complete forensic trail captured.
System recovered to validated state.
Configuration Corruption
Trigger: Invalid config detected → validation mismatch triggers recovery
Operational
Configuration checksum valid
Config Drift
Validation mismatch identified
Validation Failed
Config rejected as invalid
Last Good Loaded
Fallback config restored
Config Rebuilt
Valid state reconstructed
Config Restored
Validated config active
Invalid configuration rejected. System restored to validated baseline.
System recovered to validated state.
Timing / Execution Overrun
Trigger: Control loop exceeds deterministic timing window → containment triggered
Operational
Execution timing within bounds
Timing Violation
Deadline exceeded
Execution Halted
Non-deterministic path blocked
Safe Envelope
Bounded behavior active
Loop Resynchronized
Timing realigned
Timing Stable
Deterministic cadence restored
Non-deterministic execution prevented. Timing guarantees restored.
System recovered to validated state.
GNSS Loss / Navigation Degradation
Trigger: GNSS signal lost or integrity invalid → navigation confidence degraded
Operational
Navigation state valid
Navigation Degraded
GNSS unavailable or integrity failed
Sensor Fusion
IMU + odometry assume estimation
Trust Reweighted
GNSS removed from solution
Safe Trajectory
Vehicle constrained to bounded path
Navigation Stable
Validated guidance mode restored
Navigation integrity preserved through redundancy. Vehicle remained within safe operational envelope.
System recovered to validated state.
Obstacle Detection / Collision Risk
Trigger: Proximity sensor detects obstacle within unsafe threshold → collision avoidance triggered
Operational
Navigation corridor clear
Collision Risk
Obstacle within safety boundary
Command Override
Motion suppressed at execution
Safe Maneuver
Avoidance vector computed
Trajectory Adjusted
Safe avoidance path executed
Hazard Cleared
Safe movement resumed
Unsafe trajectory prevented before execution. Collision risk fully mitigated.
System recovered to validated state.
Actuator Asymmetry / Thrust Imbalance
Trigger: Motor / actuator output deviates beyond tolerance → control imbalance detected
Operational
Propulsion balance within tolerance
Imbalance Detected
Deviation exceeds threshold
Control Reallocated
Actuators redistributed
Power Limited
Output constrained for stability
Fallback Mode
Bounded maneuver envelope
Balanced State
Stable controlled output restored
Control stability preserved through actuator redistribution. No loss of safe operation.
System recovered to validated state.
Link Loss / Control Disconnect
Trigger: Remote control link lost → command authority unavailable
Operational
Control link active
Link Lost
Control channel disconnected
Autonomy Engaged
Safe autonomy profile activated
Mission Evaluated
Safe continuation or abort
Return / Hold
Safe position engaged
Link Restored
Validated control path resumed
Loss of external control contained. Vehicle remained within safe autonomous bounds.
System recovered to validated state.
All failure modes result in deterministic, auditable state transitions.
No unsafe actuation occurs without passing Safety Validation and Authority Gate.