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REAL-TIME DATA SCHEDULING METHOD HAVING FAULT TOLERANCE FUNCTION FOR USE IN FIELD OF RAIL TRANSPORTATION

机译:具有容错功能的实时数据调度方法在铁路运输中的应用

摘要

Provided is a real-time data scheduling method having a fault tolerance function for use in the field of rail transportation, said method comprising the following steps: step 1, initialising a real-time Ethernet switch system having a fault tolerance function; step 2, monitoring switch failure; step 3, in response to switch failure, when a CPU board detects peripheral switch failure, a CPU sending a command for turning on the fault tolerance function to a switch board, thereby turning on the fault tolerance function for a port connected to a faulty switch; step 4, determining whether an arbitration module is turned on according to the fault tolerance function for each port; step 5, upon reaching a receiving window of a data packet, controlling a logic module to determine an address space of the data packet according to a data stream identifier field. The present invention effectively prevents real-time data originally passing through faulty switches from arriving at the next switches early, thereby causing the data and the corresponding receiving time windows to be mismatched, which leads to the problem of network packet loss.
机译:提供一种用于铁路运输领域的具有容错功能的实时数据调度方法,所述方法包括以下步骤:步骤1,初始化具有容错功能的实时以太网交换系统;步骤2,监控交换机故障;步骤3,响应交换机故障,当CPU板检测到外围交换机故障时,CPU向交换机板发送开启容错功能的命令,从而开启与故障交换机相连的端口的容错功能;步骤4,根据每个端口的容错功能,确定仲裁模块是否开启;步骤5,到达数据包的接收窗口后,控制逻辑模块根据数据流标识字段确定数据包的地址空间。本发明有效地防止了最初通过故障交换机的实时数据提前到达下一交换机,从而导致数据和相应的接收时间窗口失配,从而导致网络丢包的问题。

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