SYNCHRONIZATION AND HOT STANDBY METHOD AND SYSTEM FOR PRIMARY SYSTEM AND STANDBY SYSTEM OF APPARATUS

摘要

The present disclosure provides a method and system for synchronization and hot backup of active-standby system of a device. When the active system and the standby system are synchronized, if the active system has a failure, the standby system is upgraded to an active system, the train can realize seamless and safe switching without stopping and performing other special operations; when the standby system enters a failure state, the active system and the standby system are out of synchronization. The hardware platform of the present disclosure ensures that the active system and the standby system are synchronously powered on, the software platform thereof ensures that operating states and external inputs of the active system and the standby system are synchronized, hot backup of the active system and the standby system is achieved, and the standby system does not output control commands while the active system outputs control commands, so the standby system can be upgraded to an active system if the active system has a failure in the case where the active system and the standby system are synchronized, thus seamless and safe switching can be realized.