The autonomous control of unmanned aircraft is a highly safety-critical domain with great economic potential in a wide range of application areas, including logistics, agriculture, civil engineering, and disaster recovery. We report on the development of a dynamic monitoring framework for the DLR ARTIS (Autonomous Rotorcraft Testbed for Intelligent Systems) family of unmanned aircraft based on the formal specification language RTLola. RTLola is a stream-based specification language for real-time properties. An RTLola specification of hazardous situations and system failures is statically analyzed in terms of consistency and resource usage and then automatically translated into an FPGA-based monitor. Our approach leads to highly efficient, parallelized monitors with formal guarantees on the noninterference of the monitor with the normal operation of the autonomous system.
@article{arxiv.2004.06488,
title = {RTLola Cleared for Take-Off: Monitoring Autonomous Aircraft},
author = {Jan Baumeister and Bernd Finkbeiner and Sebastian Schirmer and Maximilian Schwenger and Christoph Torens},
journal= {arXiv preprint arXiv:2004.06488},
year = {2020}
}