An Online Upgradable Model for Distributed Fault-Tolerant Real-Time Control Systems
Xiong Guang-ze · Systems engineering and electronics · 2003
Distributed fault-tolerant real-time control systems are widely used in the field of safety critical systems. To extend the life cycle of these systems and meet the need of improving the system's performance and dependability, it is necessary to upgrade the systems. In this paper, an online upgradable model to realize system upgrading safely is presented, and the running performance and dependability are guaranteed. The composition and functions of the model are studied and a model of stochastic Petri net is constructed to evaluate its performance and dependability.