Design Method of Automotive Ethernet Bus Based on DDS Protocol

A design method, Ethernet technology, applied in the direction of bus network, data exchange network, digital transmission system, etc., can solve the problem of imperfect development method of automobile bus

Active Publication Date: 2021-02-12
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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  • Design Method of Automotive Ethernet Bus Based on DDS Protocol
  • Design Method of Automotive Ethernet Bus Based on DDS Protocol
  • Design Method of Automotive Ethernet Bus Based on DDS Protocol

Examples

Experimental program
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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 with 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 a method for designing an automotive Ethernet bus based on the DDS protocol, comprising the following steps: generating the topology structure of Service and the topology structure of the vehicle Ethernet architecture through UML language, wherein the topology structure of Service includes the following interfaces: Key , Partition and QoS, transform the topology structure of Service and the topology structure of the vehicle Ethernet architecture into an interface definition language IDL file conforming to the DDS protocol specification, and then generate a service interface code from the IDL file, and the service interface code includes corresponding Data files and related publish-subscribe node codes, and finally deploy the service interface codes to the corresponding application layer codes. The invention utilizes the direct-viewing and easy-to-understand features of the UML language to improve the design efficiency of the automotive Ethernet bus and reduce the occurrence of bus failures.

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 Patents(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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