Multi-Node Fault-Tolerant Two-Cell Real-Time S2A Network
Merna N. Abou Eita, Mostafa W. Hussein, Ahmed A. Ibrahim, Shereen S. Abouelazayem, Mennatallah A. Morsi, Eslam A. Moustafa, Hassan H. Halawa, Ramèz M. Daoud, Hassanein Hamed Amer, Hany M. ElSayed · Intelligent Control and Automation · 2016
This paper presents a novel fault-tolerant networked control system architecture consisting of two cells working in-line. This architecture is fault-tolerant at the level of the controllers as well as the sensors. Each cell is based on the sensor-to-actuator approach and has an additional supervisor node. It is proven, via analysis as well as OMNeT++ simulations that the production line succeeds in meeting all control system requirements with no dropped or over-delayed packets. A reliability analysis is then undertaken to quantitatively estimate the increase in reliability due to the introduction of fault-tolerance.