A System-level Heterogeneous Hot Standby Redundant Signaling System

Abstract

The invention relates to a hot backup redundant signal system with system-level isomerism. The system comprises a CBTC system, a TBTC system and switching units, wherein the CBTC and the TBTC are in communication connection with a train by the switching units respectively; under normal work of the system, the CBTC will be in communication connection with the train by the switching unit, and functional commands received by the train come from the CBTC; and when the CBTC fails, the TBTC will be in communication connection with the train by the switching unit, functional commands received by the train come from TBTC vehicle-mounted equipment, and the system can execute switching automatically. In comparison with the prior art, the system provided by the invention has the advantages that the system usability is enhanced, influences of failures on operation are reduced, etc.

Description

technical field [0001] The invention relates to a rail transit signal system, in particular to a system-level heterogeneous hot standby redundant signal system. Background technique [0002] At present, the signal system basically adopts equipment-level redundancy. For example, the key control machine adopts dual-machine mutual backup, 2 by 2 to take 2, 3 to 2 or even M to take N, but the entire signal system level has no redundancy. , only the standby degraded mode. For example, CTCS-2 may be configured at the same time for CTCS-3 lines, and point backup mode may be configured on CBTC lines, but these cannot be called system-level hot standby redundant signaling systems. The equipment-level redundancy method does not solve the impact on the signal system when the equipment switching device fails, and the degraded standby mode will also increase the switching time and reduce the function due to the degradation, which will eventually affect the normal operation. Contents of...

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Problems solved by technology

[0002] At present, the signal system basically adopts equipment-level redundancy. For example, the key control machine adopts dual-machine mutual backup, 2 by 2 to take 2, 3 to 2 or even M to take N, but the entire signal system level has no redundancy. , only the backup degraded mode. For example, CTCS-2 may be configured at the same time for CTCS-3 lines, and point backup mode may be configured on CBTC lines, but these cannot be called system-level hot standby redundant signaling systems.

The equipment-level redundancy method does not solve the impact on the signal system when the equipment switching device fails, and the degraded standby mode will also increase the switching time and reduce the function due to the degradation, which will eventually affect the normal operation.

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