A method for synchronization and hot standby of equipment master and backup systems

Abstract

The invention provides a method for synchronizing the main and standby systems of equipment and hot standby, comprising the following steps: a hardware platform ensures the cycle synchronization of the main system and the standby system; application software ensures that the working status and external input synchronization of the main system and the standby system are synchronized; the application software Ensure that the main system outputs control commands, and the backup system does not output control commands; in the case of synchronization between the main system and the backup system, if the main system fails, the backup system will be upgraded to the main system, and the train does not need to stop and other special operations to achieve seamless safety Switchover; when the standby system enters a fault state, the main system and the standby system lose synchronization. The hardware platform of the present invention ensures that the main system and the backup system are powered on synchronously, and the software platform ensures that the working status of the main system and the backup system is synchronized with external input, so that the main system and the backup system can be hot-standby, and when the main system outputs control commands, The backup system does not output control commands, so when the main system and the backup system are synchronized, if the main system fails, the backup system will be upgraded to the main system to realize seamless and safe switching.

Description

technical field [0001] The invention belongs to the technical field of automation, and in particular relates to a method for synchronizing and hot-standby of main and standby systems of equipment. Background technique [0002] High-speed railway on-board equipment is the key equipment to ensure the safety of trains. It receives control information such as line conditions and driving permits from ground equipment, and generates a continuous speed pattern curve for the target distance according to the traction and braking characteristics of the train to ensure that the train does not exceed the allowable speed curve. Try to ensure the safe operation of the train at the maximum running speed, reduce the running time of the train, and avoid the situation of the train being delayed. [0003] If the on-board equipment does not use the hot-standby technology, once the on-board equipment fails, the train will brake to a stop according to the principle of fault-oriented safety. Trai...

AI Technical Summary

Problems solved by technology

[0004] If the existing on-board equipment fails, it will take a lot of time to troubleshoot the fault, which will lead to the delay of the train and affect the efficiency of the train operation

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