Automobile Ethernet bus design method based on DDS protocol

A design method, Ethernet technology, applied in bus network, data exchange network, data exchange through path configuration, etc., can solve problems such as imperfect development method of automobile bus

Active Publication Date: 2020-12-18
AUTOCORE INTELLIGENT TECH NANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current vehicle electronic and electrical architecture has clearly defined the trend of Ethernet as the bus, the development method of the Ethernet-based automotive bus is not perfect, especially the development method of the automotive Ethernet based on the DDS protocol is still blank, so a DDS-based The design method of the automotive Ethernet bus of the protocol is very necessary

Method used

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  • Automobile Ethernet bus design method based on DDS protocol
  • Automobile Ethernet bus design method based on DDS protocol
  • Automobile Ethernet bus design method based on DDS protocol

Examples

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Embodiment

[0014] The automotive ethernet bus design method based on the DDS protocol in the present embodiment comprises the following steps: first, as figure 1 and figure 2 As shown, the graphical user interface is formulated based on the content of the DDS protocol, including the topology of the vehicle Ethernet architecture and the topology of the Service, that is, the topology of the Service and the topology of the vehicle Ethernet architecture are generated using UML language. These elements There will be a corresponding Table format for editing; then the topology of the Service and the topology of the vehicle's Ethernet architecture will be converted into an IDL (Interface Definition Language) file that conforms to the DDS protocol specification. According to the corresponding data type, the IDL file can be customized, such as:

[0015] module Obj_2_Quality

[0016] {

[0017] struct Msg

[0018] {

[0019] octet Obj_ProbOfExist;

[0020] octet Obj_MeasState;

[0021] octet ...

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Abstract

The invention relates to an automobile Ethernet bus design method based on a DDS protocol, which comprises the following steps: generating a topological structure of Service and a topological structure of a whole automobile Ethernet architecture through a UML, the topological structure of Service comprising the following interfaces: Key, Partion and QoS; converting a topological structure of Service and a topological structure of a whole vehicle Ethernet architecture into an interface definition language (IDL) file conforming to a DDS protocol specification, and then generating a service interface code from the IDL file, the service interface code comprising a file of corresponding data and a related publish-subscribe node code; and finally, deploying the service interface code into a corresponding application layer code. According to the invention, the characteristics of intuitiveness and easiness in understanding of the UML language are utilized, so that the design efficiency of theEthernet bus of the automobile is improved, and bus faults are reduced.

Description

technical field [0001] The invention relates to a method for designing an automotive Ethernet bus based on the DDS protocol, and belongs to the technical field of automatic driving. Background technique [0002] With the intelligent networking of automobiles, the automotive electronic and electrical architecture has the characteristics of cloud and automobile interconnection, multi-sensory system access, domain architecture design, and central architecture design. This requires our communication bus to have large bandwidth, real-time performance, and stability. nature and distribution. [0003] Data distribution service DDS (Data Distribution Service for Real-Time-Systems) is a distributed real-time communication middleware, data distribution service for real-time systems, using publish-subscribe architecture, emphasizing data-centric, using RTPS service discovery protocol to achieve Complete P2P node discovery, complete node automatic discovery to build a decentralized net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/40006H04L2012/40273
Inventor 王飞张旸陈诚刘洁
Owner AUTOCORE INTELLIGENT TECH NANJING CO LTD
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