A Redundancy Design Schema of Distributed Real-Time Database Applied in ISCS
Jun Wei Du, Wei Qiang Chen, Zhong Zhu, Xin Liu, Si Jun Wan, Chang Bin Liao · Applied Mechanics and Materials · 2012
Reliability is one of the most important properties of integrated supervisory and control system (ISCS) in metro. Redundancy technology, a fault tolerant mechanism, can significantly improve ISCS reliability. This paper introduces a redundancy design schema and its implementation in distributed real-time database, which is the kernel part of ISCS, Including upstream and downstream data redundancy processing technology, fault detection and redundancy switch technology. The result shows that this schema is feasible and reasonable.