Prototyping QoS based architecture for power plant control applications

The goal of the project is to gain experience on QoS (quality of service) based distributed system for EDF´s power control applications. EDF is the French power utility. QoS is related to time constraints in this case. We adopted a distributed system approach to build our execution platform. The first prototype uses a modified ChorusOS micro-kernel with a real-time inter-process communication facility based on an ATM network and supports a specific real-time Java Virtual Machine. Our second proposal attempts to build an equivalent architecture using off-the-shelf products. Reality constraints lead to a CoS (classification of service) based design. We show that there is no available off-the-shelf QoS or CoS based technology for real-time object oriented distributed applications