Runtime Assurance for Safety-Critical Systems: An Introduction to Safety Filtering Approaches for Complex Control Systems
- Award ID(s):
- 1749357
- PAR ID:
- 10430836
- Date Published:
- Journal Name:
- IEEE Control Systems
- Volume:
- 43
- Issue:
- 2
- ISSN:
- 1066-033X
- Page Range / eLocation ID:
- 28 to 65
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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We introduce a novel notion of perception contracts to reason about the safety of controllers that interact with an environment using neural perception. Perception contracts capture errors in ground-truth estimations that preserve invariants when systems act upon them. We develop a theory of perception contracts and design symbolic learning algorithms for synthesizing them from a finite set of images. We implement our algorithms and evaluate synthesized perception contracts for two realistic vision-based control systems, a lane tracking system for an electric vehicle and an agricultural robot that follows crop rows. Our evaluation shows that our approach is effective in synthesizing perception contracts and generalizes well when evaluated over test images obtained during runtime monitoring of the systems.more » « less
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