基于不同物理架构的车载以太网通信设计研究  

Research on Communication Design of Automotive Ethernet Based on Different Physical Architecture

作　　者：郭健忠[1] 陈典 闵锐 汪喜林 汪子林 GUO Jianzhong;CHEN Dian;MIN Rui;WANG Xilin;WANG Zilin(Vehicle engineering Department,Wuhan University of Science and Technology,Wuhan 430065,China;Wuhan Baohua LCD Display Technology Co.,Ltd,Wuhan 430082,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,武汉430065 [2]武汉保华液晶显示科技有限公司,武汉430082

出　　处：《电子器件》2019年第6期1538-1542,共5页Chinese Journal of Electron Devices

摘　　要：车载以太网是一种新兴的车载通信网络,支持实现高速率、低延迟的AVB通信。为解决i.MX6系统AVB开发受硬件限制的问题,对比i.MX6系统设计了开发AVB协议栈的X86模拟平台。通过分析模拟平台及i.MX6系统的AVB传输数据,证明了模拟平台可以脱离硬件限制实现AVB的开发。提出了相对实时率,评价了X86平台的模拟效果。测试结果表明,相对实时率趋向于84.5%,模拟效果良好。Automotive ethernet is a new type of on-board communication network,which supports high-speed,low-latency AVB communication.In order to solve the problem that the AVB development of i.MX6 system is limited by hardware,the X86 simulation platform for developing AVB protocol stack is designed by comparing with i.MX6 system.Through the analysis of the simulation platform and AVB transmission data of i.MX6 system,it is proved that the simulation platform can realize the development of AVB without the limitation of hardware.The relative real-time rate is proposed and the simulation effect of X86 platform is evaluated.The test results show that the relative real-time rate tends to 84.5%and the simulation effect is good.

关 键 词：车载网络通信 车载以太网 对比设计 X86系统 i.MX6系统 AVB 

分 类 号：TN919[电子电信—通信与信息系统]