Method and system for updating train communication network nodes

Abstract

The present invention provides a method and system for updating train communication network nodes, wherein the method includes: the node updating device loads update files corresponding to nodes to be updated among the plurality of network nodes; the node updating device controls the Multiple network nodes stop sending data; the node update device controls the nodes to be updated to perform update operations according to the update file; the node update device controls the multiple network nodes to resume sending data. The method and system for updating train communication network nodes provided by the present invention are beneficial to the maintenance and version management and control of each product software on the train by the train operator, avoid the update failure due to the influence of other data during the update process, and improve the update success rate.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to a method and system for updating train communication network nodes. Background technique [0002] At present, the Train Communication Network (TCN) bus technology is widely used in the train communication network. The TCN bus covers Multifunction Vehicle Bus (MVB for short), Wire Train Bus (Wire Train Bus for short). WTB), Ethernet, and Controller Area Network (CAN for short). According to the requirements of the communication characteristics of the rail industry, the use of the CAN bus to set up a communication network requires that each node on the network must support the CANopen protocol. [0003] In the prior art, due to the limited technical conditions of each train vehicle manufacturer, many products on the train need to be purchased from external suppliers or commissioned to design and develop, so the products of different suppliers have their own software on...

AI Technical Summary

Problems solved by technology

[0004] The variety of software online update methods has at least the following defects: On the one hand, it is not conducive to the train operator's maintenance and version control of each product software on the train

On the other hand, when the software is updated, it is easily affected by other data, causing the update to fail

Because the software update is actually a process of data transmission, if the amount of communication data on the bus is too large, it will affect the transmission of data related to the software update. Once there is a serious delay or frame loss in the data transmission, the software update will fail immediately. Trying to update again will also have a high failure rate

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