Abstract:

Abstract:In some dualserver hot standby system, due to that the system operated for too long time or the equipments are aged, when one server of the two servers is stopped, the other key server has to operate individually, and the risk of system function failure is increased greatly. A new scheme was proposed, in which a cold standby server is configured for the key server of the system, and a coldhot mixed standby system is formed. Data show that the scheme can shorten the server alone operation time during a server failure, the risk can be reduced effectively, and the dispatching automation system can operate
 more safely and stably.

Key words: Key words:automation master station system, dual machine hot standby, coldhot standby mixed system, single machine running time