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Synchronization method for DoIP entity in vehicle Ethernet, and DoIP entity

An Ethernet, physical technology, applied in the computer field, can solve the problem of not giving synchronization suggestions and so on

Active Publication Date: 2019-02-15
BEIJING JINGWEI HIRAIN TECH CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the current protocol does not give advice on how to synchronize

Method used

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  • Synchronization method for DoIP entity in vehicle Ethernet, and DoIP entity
  • Synchronization method for DoIP entity in vehicle Ethernet, and DoIP entity
  • Synchronization method for DoIP entity in vehicle Ethernet, and DoIP entity

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Embodiment Construction

[0059] The vehicle Ethernet includes a plurality of electronic components, for example, an engine electronic control unit (Electronic Control Unit, ECU for short). In the present invention, the electronic components in the vehicle Ethernet are called DoIP entities. The DoIP entities belonging to the same vehicle Ethernet are all installed in the same vehicle.

[0060] Vehicle Ethernet is a local area network, which can be connected to external devices through 4G network, public Ethernet, etc., and external devices can remotely diagnose or refresh DoIP entities in vehicle Ethernet.

[0061] The application scenarios of remote diagnosis or refresh can be roughly divided into three categories:

[0062] 1. Vehicle inspection and maintenance (after sales)

[0063] In the repair shop, the external maintenance equipment (such as diagnostic instrument) does not need to use the traditional assembly line diagnostic socket (Assembly line Diagnostic Link, referred to as ALDL) port hard-...

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PUM

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Abstract

Embodiments of the invention provide a synchronization method for a DoIP entity in a vehicle Ethernet, and the DoIP entity, which are used for synchronization of DoIP entities. Any DoIP entity in thevehicle Ethernet is installed in the same vehicle. The method comprises steps of after the DoIP entity is powered, checking whether the DoIP entity is a synchronization manager by the DoIP entity, ifnot, executing a silence policy, if yes, multicasting a relation maintenance message periodically, so as to state that the DoIP entity is the synchronization manager; and when the DoIP entity is not the synchronization manager but has a synchronization demand, unicasting a synchronization inquiry message to the synchronization manager stated in the received relation maintenance message, and receiving a synchronization reply message returned by the synchronization manager, wherein the synchronization reply message carries a first confirmation code and synchronization information or carries a second confirmation code, the first confirmation code is used for representing synchronization success, the second confirmation code is used for representing synchronization failure, and the synchronization information at least comprises a vehicle identification number of a vehicle corresponding to the vehicle Ethernet.

Description

technical field [0001] The invention relates to the computer field, in particular to a method for synchronizing a DoIP entity in a vehicle Ethernet and the DoIP entity. Background technique [0002] Vehicle Ethernet is a new type of local area network technology that uses Ethernet to connect electronic components in vehicles. [0003] During vehicle diagnosis, the electronic components in the vehicle Ethernet can be remotely diagnosed based on the Diagnostic Over IP (DoIP) technology. Electronic components in automotive Ethernet can be referred to as DoIP entities. [0004] A device discovery process is required prior to remote diagnosis. According to the protocol, the DoIP entity must announce that it has been synchronized before it can be discovered. During the device discovery process, the synchronization content such as the Vehicle Identification Number (VIN) of the DoIP entity will be collected, and the discovered DoIP entity can be remotely diagnosed later. . [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
CPCH04J3/0638
Inventor 薛中波
Owner BEIJING JINGWEI HIRAIN TECH CO INC
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