Computer Science Graduate Seminar

Thursday, January 12, 2023, 10:00am

Synthesizing FDIR Recovery Strategies for Space Systems

  • Sascha Müller, M.Sc. - DLR Braunschweig
  • Place: 9222 (Building E3, Computer Science Center)



This talk proposes an inherently non-deterministic model for Dynamic Fault Trees (DFTs) to analyze Fault Detection Isolation and Recovery concepts with a particular focus on the needs of space systems. Deterministic recovery strategies are synthesized by transforming these non-deterministic DFTs into Markov automata. From the corresponding scheduler, optimized to maximize a given RAMS metric, an optimal recovery strategy can then be derived and represented by a model we call recovery automaton. We discuss dedicated techniques for reducing the state space of this recovery automaton and investigate lifting the approach to a partially observable setting.


The computer science lecturers invite interested people to join.