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Electrical Engineering and Systems Science > Systems and Control

arXiv:2501.07187 (eess)
[Submitted on 13 Jan 2025]

Title:Real-time Mode-Aware Dataflow: A Dataflow Model to Specify and Analyze Mode-dependent CPSs under Relaxed Timing Constraints

Authors:Guillaume Roumage (LCYL), Selma Azaiez (CEA), Cyril Faure (LCYL), Stéphane Louise (LCYL)
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Abstract:Modern Cyber-Physical Systems (CPS) often exhibit both relaxed real-time constraints and a mode-dependent execution. Relaxed real-time constraints mean that only a subset of the processes of a CPS have real-time constraints, and a mode-dependent CPS has conditional execution branches. Static analysis tools, such as the PolyGraph model (a formalism extending the Cyclo-Static Dataflow model with real-time constraints), can specify and analyze systems with relaxed real-time constraints. However, PolyGraph is limited in its ability to specify and analyze mode-dependent CPSs. This paper extends PolyGraph with routing actors, yielding the Routed PolyGraph model. This model is further extended to the Real-time Mode-Aware Dataflow (RMDF), which both leverages routing actors and incorporates a new dataflow actor to specify mode-dependent CPSs under relaxed real-time constraints. This paper also extends the static analyses of PolyGraph to RMDF. We showcase the application of RMDF with a specification and an analysis (derivation of timing constraints at the job-level and a feasibility test) of the vision processing system of the Ingenuity Mars helicopter.
Subjects: Systems and Control (eess.SY)
Cite as: arXiv:2501.07187 [eess.SY]
  (or arXiv:2501.07187v1 [eess.SY] for this version)
  https://doi.org/10.48550/arXiv.2501.07187

Submission history

From: Guillaume Roumage [view email] [via CCSD proxy]
[v1] Mon, 13 Jan 2025 10:35:23 UTC (26 KB)
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