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Train communication network node updating method and system

A train communication network and network node technology, applied in the transmission system, bus network, data exchange network, etc., can solve the problems of being easily affected by other data, software update failure immediately, high failure rate, etc., and achieve the goal of improving the update success rate Effect

Active Publication Date: 2019-09-27
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Train communication network node updating method and system
  • Train communication network node updating method and system
  • Train communication network node updating method and system

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] The method and system for updating train communication network nodes according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0030] In order to clearly illustrate the update method and system of the train communication network node in the embodiment of the present invention, the application scenarios of the update method of the train communication network node in the embodiment of the present invention will be described below. figure 1 It is a ...

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Abstract

The invention provides a train communication network node updating method and system, and the method comprises the steps: enabling node updating equipment to load an updating file corresponding to a to-be-updated node in a plurality of network nodes; enabling the node updating equipment to control the plurality of network nodes to stop sending data; enabling the node updating equipment to control the to-be-updated node to perform updating operation according to the updating file; and enabling the node updating equipment to control the plurality of network nodes to recover to send data. According to the train communication network node updating method and system provided by the invention, the maintenance and version control of product software on a train by a train operator are facilitated, the updating failure caused by the influence of other data in the updating process is avoided, and the updating success rate is improved.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/24H04L12/851H04L12/40H04L29/06G06F8/65G06F8/71
CPCG06F8/65G06F8/71H04L12/40006H04L41/082H04L47/24H04L63/10H04L67/06H04L67/125H04L67/34H04L2012/40215
Inventor 磨俊生曾文晓赵龙
Owner BYD CO LTD
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