Study of different load dependencies among shared redundant systems

Jan Galdun (1, 2) , Jean-Marc Thiriet (1) , Jan Ligus (2)

1 GIPSA-SA-IGA - GIPSA - Signal et Automatique pour le Diagnostic et la Surveillance
2 Department of Cybernetics and Artificial Intelligence

The paper presents features and implementation of a shared redundant approach to increase the reliability of networked control systems. Common approaches based on redundant components in control system use passive or active redundancy. We deal with quasi-redundant subsystems (shared redundancy) whereas basic features are introduced in the paper. This type of redundancy offers several important advantages such as minimizing the number of components as well as increasing the reliability. The example of a four-rotor mini-helicopter is presented in order to show reliability improving without using any additional redundant components. The main aim of this paper is to show the influence of the load increasing following different scenarios. The results could help to determine the applications where quasi-redundant subsystems are a good solution to remain in a significant reliability level even if critical failure appears.

Mots clés: Shared redundancy; Dependability; Networked control systems

Domaines: Automatique / Robotique

Jan Galdun, Jean-Marc Thiriet, Jan Ligus. Study of different load dependencies among shared redundant systems. RTS 2008 - International Workshop on Real Time Software RTS'2008 within International Multiconference on Computer Science and Information Technology IMCSIT'2008, Oct 2008, Wisla, Poland. pp.609 - 615. ⟨hal-00349408⟩