Physical Actuation Integrity
Summary#
Sensor validation, actuator monitoring, emergency stops, hardware safety
Applicability#
| Certification Level | Status | Description |
|---|---|---|
| L1Supervised Operational Reliability | Required | Applicable ACRs must be satisfied for L1 certification. |
| L2Bounded Autonomous Deployment | Required | Full domain scope is evaluated for L2 certification. |
| L3High-Stakes Autonomous Certification | Required | Maximum rigor evaluation at L3 level with extended evidence requirements. |
Risk Rationale#
Linked ACR Controls#
The following Autonomous Compliance Requirements are assigned to this domain. Each ACR defines a specific, testable control with its own evaluation method, classification, and evidence requirements.
The system SHALL demonstrate graceful degradation when primary sensors fail, maintaining safe operat
The system SHALL demonstrate graceful degradation when primary sensors fail, maintaining safe operation on redundant sensors.
The system SHALL detect sensor noise, degradation, and drift with configurable sensitivity threshold
The system SHALL detect sensor noise, degradation, and drift with configurable sensitivity thresholds.
The system SHALL detect actuator misfires, mis-calibration, and unexpected actuation events.
The system SHALL detect actuator misfires, mis-calibration, and unexpected actuation events.
Actuator commands SHALL be validated against expected ranges and rates before execution.
Actuator commands SHALL be validated against expected ranges and rates before execution.
Emergency stop mechanisms SHALL operate independently of software and halt all physical actuation wi
Emergency stop mechanisms SHALL operate independently of software and halt all physical actuation within defined time bounds.
Emergency stop SHALL be accessible through multiple independent physical channels.
Emergency stop SHALL be accessible through multiple independent physical channels.
The system SHALL demonstrate tolerance to environmental unpredictability including conditions outsid
The system SHALL demonstrate tolerance to environmental unpredictability including conditions outside the designed operating envelope.
Environmental operating envelope SHALL be documented with defined behavior for out-of-envelope condi
Environmental operating envelope SHALL be documented with defined behavior for out-of-envelope conditions.
Human proximity safeguards SHALL be implemented with configurable safety zones and speed reduction.
Human proximity safeguards SHALL be implemented with configurable safety zones and speed reduction.
Automatic halt SHALL be triggered based on human detection within defined critical proximity zones.
Automatic halt SHALL be triggered based on human detection within defined critical proximity zones.
Real-time environmental awareness SHALL be maintained sufficient to detect hazardous conditions.
Real-time environmental awareness SHALL be maintained sufficient to detect hazardous conditions.
Redundant safety-critical pathways SHALL ensure no single point of failure in physical safety mechan
Redundant safety-critical pathways SHALL ensure no single point of failure in physical safety mechanisms.
The system SHALL demonstrate safe behavior during power loss conditions.
The system SHALL demonstrate safe behavior during power loss conditions.
The system SHALL demonstrate safe behavior during communication loss conditions.
The system SHALL demonstrate safe behavior during communication loss conditions.
The system SHALL demonstrate safe behavior during controller failure conditions.
The system SHALL demonstrate safe behavior during controller failure conditions.
Physical boundary enforcement SHALL prevent operation outside defined spatial constraints.
Physical boundary enforcement SHALL prevent operation outside defined spatial constraints.
Speed and force limiting SHALL be enforced proportional to proximity to humans and sensitive objects
Speed and force limiting SHALL be enforced proportional to proximity to humans and sensitive objects.
The system SHALL comply with applicable industry-specific physical safety standards.
The system SHALL comply with applicable industry-specific physical safety standards.
Sensor fusion algorithms SHALL be validated for accuracy and reliability under adverse conditions.
Sensor fusion algorithms SHALL be validated for accuracy and reliability under adverse conditions.
Physical calibration status SHALL be monitored with automated alerting for calibration drift.
Physical calibration status SHALL be monitored with automated alerting for calibration drift.
The system SHALL maintain kinematic and dynamic models accurate to within documented tolerance bound
The system SHALL maintain kinematic and dynamic models accurate to within documented tolerance bounds.
Safety-critical software components SHALL be developed and verified according to IEC 61508 SIL requi
Safety-critical software components SHALL be developed and verified according to IEC 61508 SIL requirements.
The system SHALL implement safe torque-off and safe limited speed functions per relevant safety stan
The system SHALL implement safe torque-off and safe limited speed functions per relevant safety standards.
Physical interaction forces SHALL be monitored and limited to prevent injury to humans.
Physical interaction forces SHALL be monitored and limited to prevent injury to humans.
The system SHALL detect and respond to unexpected physical contact events within defined time bounds
The system SHALL detect and respond to unexpected physical contact events within defined time bounds.
Maintenance and inspection schedules SHALL be defined and enforced for all safety-critical physical
Maintenance and inspection schedules SHALL be defined and enforced for all safety-critical physical components.
The system SHALL implement geofencing with configurable boundaries that trigger speed reduction and
The system SHALL implement geofencing with configurable boundaries that trigger speed reduction and halt actions.
Physical system telemetry SHALL include sensor health, actuator status, and environmental conditions
Physical system telemetry SHALL include sensor health, actuator status, and environmental conditions.
The system SHALL support safe collaborative operation modes where humans and autonomous systems shar
The system SHALL support safe collaborative operation modes where humans and autonomous systems share workspace.
Physical system failure modes SHALL be tested through hardware-in-the-loop simulation where live tes
Physical system failure modes SHALL be tested through hardware-in-the-loop simulation where live testing is impractical.