WO2016061878A1 - 数据处理方法、tcn备用网关设备及数据处理系统 - Google Patents

数据处理方法、tcn备用网关设备及数据处理系统 Download PDF

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Publication number
WO2016061878A1
WO2016061878A1 PCT/CN2014/093347 CN2014093347W WO2016061878A1 WO 2016061878 A1 WO2016061878 A1 WO 2016061878A1 CN 2014093347 W CN2014093347 W CN 2014093347W WO 2016061878 A1 WO2016061878 A1 WO 2016061878A1
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wtb
mvb
data stream
tcn
gateway device
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PCT/CN2014/093347
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English (en)
French (fr)
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宁寿辉
杜振环
王�锋
陈玉飞
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中车大连电力牵引研发中心有限公司
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Publication of WO2016061878A1 publication Critical patent/WO2016061878A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks

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  • the present invention relates to the field of communications technologies, and in particular, to a data processing method, a TCN backup gateway device, and a data processing system.
  • TCN Train Communication Network
  • WTB Wire Train Bus
  • MVB Multifunction Vehicle Bus
  • the WTB network and the MVB network are two independent communication subnets.
  • the WTB is responsible for data communication between train vehicles, and the MVB is responsible for data communication within the vehicle.
  • the two networks use different protocols and are connected through a WTB node.
  • This node is the gateway device.
  • the gateway device is responsible for the conversion of the two protocols. That is, the WTB network communicates with the MVB network through the gateway device. When the gateway device fails, the communication function of the whole vehicle is interrupted, which directly affects the normal operation of the train.
  • the invention provides a data processing method, a TCN backup gateway device and a data processing system, so as to solve the problem that when the gateway device fails in the prior art, the communication function of the whole vehicle is interrupted, which directly affects the normal operation of the train.
  • a first aspect of the present invention provides a data processing method, including:
  • the TCN backup gateway device monitors the vital signal sent by the TCN primary gateway device
  • the TCN backup gateway device determines that the vital signal is not sent within a preset time If the change occurs, the received data stream is converted according to the pre-stored MVB protocol and the WTB protocol.
  • the converting the received data stream according to the pre-stored MVB protocol and the WTB protocol specifically includes:
  • the converting the received data stream according to the pre-stored MVB protocol and the WTB protocol specifically includes:
  • a second aspect of the present invention provides a TCN backup gateway device, including:
  • a monitoring module configured to monitor a vital signal sent by the TCN primary gateway device
  • the processing module is configured to: if it is determined that the vital signal has not changed within a preset time, convert the received data stream according to the pre-stored MVB protocol and the WTB protocol.
  • the processing module is specifically configured to encode the acquired MVB data stream of the MVB device according to the MVB protocol, and transmit the encoded MVB data stream to the TCN backup.
  • a CPU board of the gateway device receiving, by the CPU board, the encoded MVB data stream and decoding the encoded MVB data stream to obtain a decoded MVB data stream, and decoding the The MVB data stream is sent to the WTB bus such that the WTB device connected to the WTB bus acquires the MVB data stream of the MVB device.
  • the processing module is specifically configured to encode the WTB data stream of the obtained WTB device according to the WTB protocol, and transmit the encoded WTB data stream to the TCN backup.
  • a CPU board of the gateway device receiving, by the CPU board, the encoded WTB data stream, and decoding the encoded WTB data stream, obtaining a decoded WTB data stream, and decoding the decoded
  • the WTB data stream is sent to the MVB bus such that the MVB device connected to the MVB bus acquires the WTB data stream of the WTB device.
  • a third aspect of the present invention provides a data processing system, including a TCN primary gateway device and the TCN backup gateway device according to any one of the above, the TCN backup gateway device and the TCN primary gateway device through an Ethernet line connection.
  • the data processing method, the TCN backup gateway device, and the data processing system provided by the present invention monitor the vital signal sent by the TCN primary gateway device through the TCN backup gateway device, and the TCN backup gateway device determines that the life is known within a preset time. If the signal does not change, the received data stream is converted according to the pre-stored MVB protocol and the WTB protocol, thereby ensuring that the TCN primary gateway device fails or other conditions cause the TCN primary gateway device to stop working.
  • the TCN backup gateway device takes over the TCN primary gateway device to convert the received data stream to ensure communication between the WTB device and the MVB device on the train to ensure the normal operation of the train.
  • FIG. 1 is a flowchart of a data processing method according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a TCN backup gateway device 200 according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a data processing system 300 according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a data processing method according to an embodiment of the present invention.
  • the data processing method includes the following steps:
  • the TCN backup gateway device monitors the vital signal sent by the TCN primary gateway device.
  • the received data stream is converted according to the pre-stored MVB protocol and the WTB protocol.
  • the data processing method provided in this embodiment monitors the vital signal sent by the TCN primary gateway device by using the TCN backup gateway device, and if the TCN backup gateway device determines that the vital signal has not changed within the preset time, according to the pre-stored MVB protocol. Converting the received data stream with the WTB protocol, thereby ensuring that the TCN backup gateway device takes over the TCN primary gateway device in the event that the TCN primary gateway device fails or other conditions cause the TCN primary gateway device to stop working. The received data stream is converted to ensure communication between the WTB device and the MVB device on the train to ensure the normal operation of the train.
  • converting the received data stream according to the pre-stored MVB protocol and the WTB protocol may be implemented as follows:
  • the obtained MVB data stream of the MVB device is encoded, and the encoded MVB data stream is transmitted to the CPU board, and the encoded MVB data stream is received by the CPU board and the encoded MVB data stream is performed.
  • Decoding to obtain the decoded MVB data stream and transmitting the decoded MVB data stream to the WTB bus, so that the WTB device connected to the WTB bus acquires the MVB data stream of the MVB device.
  • the TCN backup gateway device includes an MVB board, a WTB board, and a CPU board.
  • the MVB board and the WTB board are respectively connected to the CPU board.
  • the MVB board includes an MVB protocol controller and an MVB bus transceiver, and the WTB board. Includes WTB protocol controller and WTB bus transceiver.
  • the MVB board is a hardware platform running MVB link software.
  • the MVB board includes physical interface, codec, communication memory, control logic, VME interface and other modules; the MVB board is a VME MVB device network card, and the core uses an FPGA chip.
  • the MVB protocol controller is a dedicated chip designed for vehicle-level network communication. It is responsible for the communication function of the MVB protocol.
  • the operating data and fault data of the MVB device to be transmitted are encoded according to the MVB network protocol, and the encoded MVB data stream is obtained, and the MVB protocol is controlled.
  • the encoded MVB data stream is sent to the MVB bus transceiver, and the encoded MVB data stream is sent to the CPU board by the MVB bus transceiver, and the CPU board decodes the encoded MVB data stream to obtain the decoded MVB data stream, and send the decoded MVB data stream to the WTB bus to make the connection
  • the WTB device on the WTB bus acquires the MVB data stream of the MVB device.
  • the CPU board can perform filtering operation on the decoded MVB data stream to remove singular data and boundary data, and ensure that the data transmitted to the WTB bus is a true reflection of the running state of the vehicle.
  • the WTB board can be a hardware platform running WTB link software, including physical interface, codec, communication memory, control logic, VME interface, etc.
  • the WTB board is a VME structure WTB device network card, and the core uses an FPGA chip.
  • the WTB protocol controller is a dedicated chip for train-level network communication design. It is responsible for the WTB protocol communication function. The operating data and fault data of the WTB device to be transmitted are converted into the WTB data stream format specified by the WTB network protocol, and sent to the WTB bus transceiver.
  • the encoded WTB data stream is sent to the CPU board by the WTB bus transceiver, and the CPU board decodes the encoded WTB data stream to obtain the decoded WTB data stream, and sends the decoded WTB data stream to On the MVB bus, the MVB device connected to the MVB bus acquires the WTB data stream of the WTB device.
  • the CPU board can perform filtering operation on the decoded WTB data stream to remove singular data and boundary data, and ensure that the data transmitted to the MVB bus is a true reflection of the running state of the vehicle.
  • converting the received data stream according to the pre-stored MVB protocol and the WTB protocol may be implemented as follows:
  • the WTB data stream of the obtained WTB device is encoded, and the encoded WTB data stream is transmitted to the CPU board, and the encoded WTB data stream is received by the CPU board and the encoded WTB data stream is performed.
  • FIG. 2 is a schematic structural diagram of a TCN backup gateway device 200 according to an embodiment of the present invention.
  • the TCN backup gateway device provided in this embodiment can perform the technical solution of the method embodiment shown in FIG.
  • the TCN backup gateway device includes: a monitoring module 210 and a processing module 220.
  • the monitoring module 210 is configured to monitor the vital signal sent by the TCN primary gateway device; the processing module 220 is configured to: if it is determined that the vital signal has not changed within the preset time, the received data is received according to the pre-stored MVB protocol and the WTB protocol. The stream is converted.
  • the TCN backup gateway device monitors the vital signal sent by the TCN primary gateway device by using the TCN backup gateway device. If the TCN backup gateway device determines that the vital signal has not changed within the preset time, the TMV is stored according to the pre-stored MVB. The protocol and the WTB protocol convert and process the received data stream, thereby ensuring that the TCN backup gateway device takes over the TCN primary gateway in the event that the TCN primary gateway device fails or other conditions cause the TCN primary gateway device to stop working. The device converts the received data stream to ensure communication between the WTB device and the MVB device on the train to ensure the normal operation of the train.
  • the processing module 220 is specifically configured to encode the acquired MVB data stream of the MVB device according to the MVB protocol, and transmit the encoded MVB data stream to the CPU board, and receive the encoded MVB data by using the CPU board. Streaming and decoding the encoded MVB data stream to obtain a decoded MVB data stream, and transmitting the decoded MVB data stream to the WTB bus, so that the WTB device connected to the WTB bus acquires the MVB of the MVB device data flow.
  • processing module 220 can be implemented by using an MVB board, a WTB board, and a CPU board deployed on the TCN backup gateway device, and the MVB board and the WTB board are respectively connected to the CPU board, and the MVB board is connected.
  • WTB board includes WTB protocol controller and WTB bus transceiver.
  • the MVB board is a hardware platform running MVB link software.
  • the MVB board includes physical interface, codec, communication memory, control logic, VME interface and other modules; the MVB board is a VME MVB device network card, and the core uses an FPGA chip.
  • the MVB protocol controller is a dedicated chip designed for vehicle-level network communication. It is responsible for the communication function of the MVB protocol.
  • the operating data and fault data of the MVB device to be transmitted are encoded according to the MVB network protocol, and the encoded MVB data stream is obtained, and the MVB protocol is controlled.
  • the encoded MVB data stream is sent to the MVB bus transceiver, and the encoded MVB data stream is sent to the CPU board by the MVB bus transceiver, and the CPU board decodes the encoded MVB data stream to obtain the decoded
  • the MVB data stream is sent to the WTB bus to enable the WTB device connected to the WTB bus to acquire the MVB data stream of the MVB device.
  • the CPU board can perform filtering operation on the decoded MVB data stream to remove singular data and boundary data, and ensure that the data transmitted to the WTB bus is a true reflection of the running state of the vehicle.
  • the WTB board can be a hardware platform running WTB link software, including physical interface, codec, communication memory, control logic, VME interface, etc.
  • the WTB board is a VME structure WTB device network card, and the core uses an FPGA chip.
  • the WTB protocol controller is a dedicated chip for train-level network communication design. It is responsible for the WTB protocol communication function. The operating data and fault data of the WTB device to be transmitted are converted into the WTB data stream format specified by the WTB network protocol, and sent to the WTB bus transceiver.
  • the encoded WTB data stream is sent to the CPU board by the WTB bus transceiver, and the CPU board decodes the encoded WTB data stream to obtain the decoded WTB data stream, and sends the decoded WTB data stream to On the MVB bus, the MVB device connected to the MVB bus acquires the WTB data stream of the WTB device.
  • the CPU board can perform filtering operation on the decoded WTB data stream to remove singular data and boundary data, and ensure that the data transmitted to the MVB bus is a true reflection of the running state of the vehicle.
  • the processing module 220 is specifically configured to encode the WTB data stream of the obtained WTB device according to the WTB protocol, and transmit the encoded WTB data stream to the CPU board, and receive the encoded WTB data stream through the CPU board and
  • the encoded WTB data stream is decoded to obtain a decoded WTB data stream, and the decoded WTB data stream is sent to the MVB bus, so that the MVB device connected to the MVB bus acquires the WTB data stream of the WTB device.
  • FIG. 3 is a schematic structural diagram of a data processing system 300 according to an embodiment of the present invention.
  • the data processing system includes a TCN primary gateway device 310 and a TCN backup gateway device 320.
  • the TCN backup gateway device 320 may be the one mentioned in the foregoing embodiment. Any one of the TCN backup gateway devices, the TCN backup gateway device 320 is connected to the TCN primary gateway device 310 via an Ethernet cable.
  • the TCN backup gateway device 320 can be used to implement the technical solution of the method shown in the embodiment of FIG. 1. The implementation principle and technical effects are similar, and details are not described herein again.
  • the data processing system monitors the vital signal sent by the TCN primary gateway device through the TCN backup gateway device, and if the TCN backup gateway device determines that the vital signal has not changed within the preset time, according to the pre-stored MVB.
  • the protocol and the WTB protocol convert and process the received data stream, thereby ensuring that the TCN backup gateway device takes over the TCN primary gateway in the event that the TCN primary gateway device fails or other conditions cause the TCN primary gateway device to stop working.
  • the device converts the received data stream to ensure the column Communication between the WTB equipment and the MVB equipment on the vehicle ensures the normal operation of the train.

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Abstract

本发明提供一种数据处理方法、TCN备用网关设备及数据处理系统，本发明数据处理方法，包括：TCN备用网关设备监测TCN主用网关设备发送的生命信号，TCN备用网关设备若判断获知在预设时间内生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理，从而可以确保在TCN主用网关设备发生故障或其他情况导致TCN主用网关设备停止工作的情况下，由TCN备用网关设备接替TCN主用网关设备对接收的数据流进行转换处理，保证列车上的WTB设备与MVB设备之间的通信，确保列车的正常运行。

Description

数据处理方法、TCN备用网关设备及数据处理系统 技术领域
本发明涉及通信技术领域，尤其涉及一种数据处理方法、TCN备用网关设备及数据处理系统。
背景技术
列车通信网络(Train Communication Network，简称TCN)作为中国铁路轨道车辆的网络通讯标准，在轨道交通领域中占有很大的比重。根据列车控制的特点，TCN网络包括两种现场总线：连接各个车厢的绞线式列车总线(Wire Train Bus，简称WTB)和连接车内设备的多功能车辆总线(Multifunction Vehicle Bus，简称MVB)。TCN标准定义的这两种形式的总线，制定了一个开放的通信系统，从而使得各种类型的铁路机车车辆能够互相联挂，不同厂商生产的设备可以互联互通。
WTB网络与MVB网络是两个独立的通信子网，WTB负责列车车辆之间的数据通信，MVB负责车辆内部的数据通信。该两种网络他们采用不同的协议，并通过一个WTB节点连接，这个节点就是网关设备，网关设备负责两种协议的转换，也就是说，WTB网络通过网关设备与MVB网络进行通信，然而，当网关设备发生故障时，造成整车通讯功能中断，直接影响列车的正常运行。
发明内容
本发明提供一种数据处理方法、TCN备用网关设备及数据处理系统，以解决现有技术中当网关设备发生故障时，造成整车通讯功能中断，直接影响列车的正常运行的问题。
本发明的第一个方面提供一种数据处理方法，包括：
TCN备用网关设备监测TCN主用网关设备发送的生命信号；
所述TCN备用网关设备若判断获知在预设时间内所述生命信号未发 生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理。
在上述数据处理方法的一个实施例中，所述根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理具体包括：
根据MVB协议，对获取的MVB设备的MVB数据流进行编码，并将编码后的MVB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的MVB数据流并对所述编码后的MVB数据流进行解码，以获得解码后的MVB数据流，并将所述解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取所述MVB设备的MVB数据流。
在上述数据处理方法的一个实施例中，所述根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理具体包括：
根据WTB协议，对获取的WTB设备的WTB数据流进行编码，并将编码后的WTB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的WTB数据流并对所述编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将所述解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取所述WTB设备的WTB数据流。
本发明的第二个方面提供一种TCN备用网关设备，包括：
监测模块，用于监测TCN主用网关设备发送的生命信号；
处理模块，用于若判断获知在预设时间内所述生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理。
在上述TCN备用网关设备的一个实施例中，所述处理模块，具体用于根据MVB协议，对获取的MVB设备的MVB数据流进行编码，并将编码后的MVB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的MVB数据流并对所述编码后的MVB数据流进行解码，以获得解码后的MVB数据流，并将所述解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取所述MVB设备的MVB数据流。
在上述TCN备用网关设备的一个实施例中，所述处理模块，具体用于根据WTB协议，对获取的WTB设备的WTB数据流进行编码，并将编码后的WTB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的WTB数据流并对所述编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将所述解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取所述WTB设备的WTB数据流。
本发明的第三个方面提供一种数据处理系统，包括TCN主用网关设备和上述任一项所述的TCN备用网关设备，所述TCN备用网关设备通过以太网线与所述TCN主用网关设备连接。
本发明提供的数据处理方法、TCN备用网关设备及数据处理系统，通过TCN备用网关设备监测TCN主用网关设备发送的生命信号，所述TCN备用网关设备若判断获知在预设时间内所述生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理，从而可以确保在TCN主用网关设备发生故障或其他情况导致TCN主用网关设备停止工作的情况下，由TCN备用网关设备接替TCN主用网关设备对接收的数据流进行转换处理，保证列车上的WTB设备与MVB设备之间的通信，确保列车的正常运行。
附图说明
图1为本发明实施例所提供的数据处理方法的流程图；
图2为本发明实施例所提供的TCN备用网关设备200的结构示意图；
图3为本发明实施例所提供的数据处理系统300的结构示意图。
具体实施方式
为使本发明实施例要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
如图1所示，图1为本发明实施例所提供的数据处理方法的流程图。该数据处理方法包括如下步骤：
S110、TCN备用网关设备监测TCN主用网关设备发送的生命信号。
S120、TCN备用网关设备若判断获知在预设时间内生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理。
本实施例提供的数据处理方法，通过TCN备用网关设备监测TCN主用网关设备发送的生命信号，TCN备用网关设备若判断获知在预设时间内生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理，从而可以确保在TCN主用网关设备发生故障或其他情况导致TCN主用网关设备停止工作的情况下，由TCN备用网关设备接替TCN主用网关设备对接收的数据流进行转换处理，保证列车上的WTB设备与MVB设备之间的通信，确保列车的正常运行。
进一步的，根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理具体可以通过如下方式实现：
根据MVB协议，对获取的MVB设备的MVB数据流进行编码，并将编码后的MVB数据流传送到CPU板卡，通过CPU板卡接收编码后的MVB数据流并对编码后的MVB数据流进行解码，以获得解码后的MVB数据流，并将解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取MVB设备的MVB数据流。
其中，TCN备用网关设备包括MVB板卡、WTB板卡和CPU板卡，MVB板卡和WTB板卡分别与CPU板卡连接，MVB板卡包括MVB协议控制器和MVB总线收发器，WTB板卡包括WTB协议控制器和WTB总线收发器。
MVB板卡是运行MVB链路软件的硬件平台，MVB板卡包括物理接口、编解码器、通信存储器、控制逻辑、VME接口等模块；MVB板卡为VME结构的MVB设备网卡，核心采用FPGA芯片。MVB协议控制器是车辆级网络通讯设计的专用芯片，负责MVB协议通信的功能，将要传输的MVB设备的运行数据、故障数据根据MVB网络协议进行编码，获得编码后的MVB数据流，MVB协议控制器将编码后的MVB数据流送到MVB总线收发器，由MVB总线收发器将编码后的MVB数据流发送到CPU板卡，CPU板卡对编码后的MVB数据流进行解码，获得解码后的MVB数据流，并将解码后的MVB数据流发送到WTB总线上，以使连接 到WTB总线上的WTB设备获取MVB设备的MVB数据流。需要说明的是，CPU板卡可以对解码后的MVB数据流进行滤波操作，以去除奇异数据、边界数据，保证传输到WTB总线上的数据是车辆运行状态的真实反映。
WTB板卡可以为运行WTB链路软件的硬件平台，包括物理接口、编解码器、通信存储器、控制逻辑、VME接口等模块；WTB板卡为VME结构的WTB设备网卡，核心采用FPGA芯片。WTB协议控制器是列车级网络通讯设计的专用芯片，负责WTB协议通信的功能，将要传输的WTB设备的运行数据、故障数据转换成WTB网络协议规定的WTB数据流格式，送到WTB总线收发器，由WTB总线收发器将编码后的WTB数据流发送到CPU板卡，CPU板卡对编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取WTB设备的WTB数据流。需要说明的是，CPU板卡可以对解码后的WTB数据流进行滤波操作，以去除奇异数据、边界数据，保证传输到MVB总线上的数据是车辆运行状态的真实反映。
进一步的，根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理具体可以通过如下方式实现
根据WTB协议，对获取的WTB设备的WTB数据流进行编码，并将编码后的WTB数据流传送到CPU板卡，通过CPU板卡接收编码后的WTB数据流并对编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取WTB设备的WTB数据流。
如图2所示，图2为本发明实施例所提供的TCN备用网关设备200的结构示意图。本实施例提供的TCN备用网关设备，可以执行如图1所示方法实施例的技术方案。该TCN备用网关设备包括：监测模块210和处理模块220。
监测模块210用于监测TCN主用网关设备发送的生命信号；处理模块220用于若判断获知在预设时间内生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理。
本实施例提供的TCN备用网关设备，通过TCN备用网关设备监测TCN主用网关设备发送的生命信号，TCN备用网关设备若判断获知在预设时间内生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理，从而可以确保在TCN主用网关设备发生故障或其他情况导致TCN主用网关设备停止工作的情况下，由TCN备用网关设备接替TCN主用网关设备对接收的数据流进行转换处理，保证列车上的WTB设备与MVB设备之间的通信，确保列车的正常运行。
进一步的，处理模块220，具体用于根据MVB协议，对获取的MVB设备的MVB数据流进行编码，并将编码后的MVB数据流传送到CPU板卡，通过CPU板卡接收编码后的MVB数据流并对编码后的MVB数据流进行解码，以获得解码后的MVB数据流，并将解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取MVB设备的MVB数据流。
其中，需要说明的是，处理模块220可以通过部署在TCN备用网关设备上的MVB板卡、WTB板卡和CPU板卡实现，MVB板卡和WTB板卡分别与CPU板卡连接，MVB板卡包括MVB协议控制器和MVB总线收发器，WTB板卡包括WTB协议控制器和WTB总线收发器。
MVB板卡是运行MVB链路软件的硬件平台，MVB板卡包括物理接口、编解码器、通信存储器、控制逻辑、VME接口等模块；MVB板卡为VME结构的MVB设备网卡，核心采用FPGA芯片。MVB协议控制器是车辆级网络通讯设计的专用芯片，负责MVB协议通信的功能，将要传输的MVB设备的运行数据、故障数据根据MVB网络协议进行编码，获得编码后的MVB数据流，MVB协议控制器将编码后的MVB数据流送到MVB总线收发器，由MVB总线收发器将编码后的MVB数据流发送到CPU板卡，CPU板卡对编码后的MVB数据流进行解码，获得解码后的MVB数据流，并将解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取MVB设备的MVB数据流。需要说明的是，CPU板卡可以对解码后的MVB数据流进行滤波操作，以去除奇异数据、边界数据，保证传输到WTB总线上的数据是车辆运行状态的真实反映。
WTB板卡可以为运行WTB链路软件的硬件平台，包括物理接口、编解码器、通信存储器、控制逻辑、VME接口等模块；WTB板卡为VME结构的WTB设备网卡，核心采用FPGA芯片。WTB协议控制器是列车级网络通讯设计的专用芯片，负责WTB协议通信的功能，将要传输的WTB设备的运行数据、故障数据转换成WTB网络协议规定的WTB数据流格式，送到WTB总线收发器，由WTB总线收发器将编码后的WTB数据流发送到CPU板卡，CPU板卡对编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取WTB设备的WTB数据流。需要说明的是，CPU板卡可以对解码后的WTB数据流进行滤波操作，以去除奇异数据、边界数据，保证传输到MVB总线上的数据是车辆运行状态的真实反映。
处理模块220，具体用于根据WTB协议，对获取的WTB设备的WTB数据流进行编码，并将编码后的WTB数据流传送到CPU板卡，通过CPU板卡接收编码后的WTB数据流并对编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取WTB设备的WTB数据流。
图3为本发明实施例所提供的数据处理系统300的结构示意图，包括数据处理系统包括TCN主用网关设备310和TCN备用网关设备320，TCN备用网关设备320可以为上述实施例中提到的任意一个TCN备用网关设备，TCN备用网关设备320通过以太网线与TCN主用网关设备310连接。
该TCN备用网关设备320可以用于执行图1实施例所示的方法技术方案，其实现原理和技术效果类似，此处不再赘述。
本实施例所提供的数据处理系统，通过TCN备用网关设备监测TCN主用网关设备发送的生命信号，TCN备用网关设备若判断获知在预设时间内生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理，从而可以确保在TCN主用网关设备发生故障或其他情况导致TCN主用网关设备停止工作的情况下，由TCN备用网关设备接替TCN主用网关设备对接收的数据流进行转换处理，保证列 车上的WTB设备与MVB设备之间的通信，确保列车的正常运行。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (7)

  1. 一种数据处理方法，其特征在于，包括：
    TCN备用网关设备监测TCN主用网关设备发送的生命信号；
    所述TCN备用网关设备若判断获知在预设时间内所述生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理。
  2. 根据权利要求1所述的方法，其特征在于，所述根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理具体包括：
    根据MVB协议，对获取的MVB设备的MVB数据流进行编码，并将编码后的MVB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的MVB数据流并对所述编码后的MVB数据流进行解码，以获得解码后的MVB数据流，并将所述解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取所述MVB设备的MVB数据流。
  3. 根据权利要求1所述的方法，其特征在于，所述根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理具体包括：
    根据WTB协议，对获取的WTB设备的WTB数据流进行编码，并将编码后的WTB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的WTB数据流并对所述编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将所述解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取所述WTB设备的WTB数据流。
  4. 一种TCN备用网关设备，其特征在于，包括：
    监测模块，用于监测TCN主用网关设备发送的生命信号；
    处理模块，用于若判断获知在预设时间内所述生命信号未发生变化，则根据预先存储的MVB协议与WTB协议对接收到的数据流进行转换处理。
  5. 根据权利要求4所述的TCN备用网关设备，其特征在于，所述处理模块，具体用于根据MVB协议，对获取的MVB设备的MVB数据流进行编码，并将编码后的MVB数据流传送到所述TCN备用网关设备的CPU 板卡，通过所述CPU板卡接收所述编码后的MVB数据流并对所述编码后的MVB数据流进行解码，以获得解码后的MVB数据流，并将所述解码后的MVB数据流发送到WTB总线上，以使连接到WTB总线上的WTB设备获取所述MVB设备的MVB数据流。
  6. 根据权利要求4所述的TCN备用网关设备，其特征在于，所述处理模块，具体用于根据WTB协议，对获取的WTB设备的WTB数据流进行编码，并将编码后的WTB数据流传送到所述TCN备用网关设备的CPU板卡，通过所述CPU板卡接收所述编码后的WTB数据流并对所述编码后的WTB数据流进行解码，获得解码后的WTB数据流，并将所述解码后的WTB数据流发送到MVB总线上，以使连接到MVB总线上的MVB设备获取所述WTB设备的WTB数据流。
  7. 一种数据处理系统，其特征在于，包括TCN主用网关设备和如权利要求4～6中任一项所述的TCN备用网关设备，所述TCN备用网关设备通过以太网线与所述TCN主用网关设备连接。
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