The invention relates to the technical field of train communication, in particular to a train communication gateway redundant system and a switching control method thereof.The system comprises a first gateway and a second gateway, and the first gateway and the second gateway are the same in hardware configuration and each comprise a double-Ethernet-port CPU unit, an MVB unit, a WTB unit, a VME backboard unit and a PWR unit; the PWR unit is used for supplying power to the CPU unit, the MVB unit and the WTB unit, the CPU unit is respectively communicated with the MVB unit and the WTB unit through the VME backboard and carries out centralized management on the states of other units, and the CPU units of the two gateways are connected through double Ethernet and are jointly used for realizing bidirectional monitoring on the states of the CPU units between the gateways. The master gateway is monitored through the communication line between the gateways, when the master gateway is found to be in fault, the slave gateway can be rapidly switched to the master gateway, the problems that the slave gateway is not switched and switched by mistake when the master gateway is in fault are solved, the stability of a train network control system is improved, and normal operation of a train is guaranteed.
本发明涉及列车通信技术领域,尤其涉及一种列车通信网关冗余系统及其切换控制方法,系统包括第一网关和第二网关,第一网关和第二网关硬件配置相同,都包括双以太网口CPU单元、MVB单元、WTB单元、VME背板单元和PWR单元,PWR单元用于对CPU单元、MVB单元和WTB单元进行供电,CPU单元通过VME背板分别与MVB单元和WTB单元进行通信并对其他单元状态集中管理,两个网关的CPU单元通过双以太网连接,共同用于实现网关间CPU单元状态的双向监控。发明通过网关间的通信线监视主网关,当发现主网关故障时,从网关能快速切换为主网关,解决主网关故障时从网关不切换和误切换的问题,提升列车网络控制系统的稳定性,保证列车正常运行。
Train communication gateway redundant system and switching control method thereof
一种列车通信网关冗余系统及其切换控制方法
2025-02-21
Patent
Electronic Resource
Chinese
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