TMR sensors for reliable S2A architectures
Shereen S. Abouelazayem, Ahmed A. Ibrahim, Mennatallah A. Morsi, Merna N. Abou Eita, Mostafa W. Hussein, Eslam A. Moustafa, Hassan H. Halawa, Ramèz M. Daoud, Hassanein Hamed Amer, Hany M. ElSayed · 2014
In this paper, TMR Sensors are applied to a fault-tolerant direct sensor to actuator (S2A) architecture for Ethernet-based Networked Control Systems (NCSs). The architecture is studied using switched Fast and Gigabit Ethernet. It is shown analytically and verified via OMNeT++ simulations that the architecture succeeds in meeting system end-to-end delay and strict zero packet loss (no over-delayed packets) requirements when using Gigabit Ethernet. Reliability modeling is carried out to quantitatively assess the benefits of the TMR sensors architecture when compared to an S2A fault-tolerant controller architecture.