Research On Application Of Onboard Infotainment System Based On Ethernet AVB

With the vigorous development of auto industry,in terms of driving assistance and intelligent driving has made great progress,the following problem is the technical bottleneck of big data transmission,LVDS shielded cable for point-topoint connection has become impossible.Based on this,this paper proposes a solution based on Ethernet AVB transmission.This paper focuses on:Research on application of onboard infotainment system based on Ethernet AVB,and specifically studies the overall architecture,communication protocol of the vehicle network.According to the research content,combined with the Red Flag infotainment system design project of FAW RDC,formulated the onboard infotainment system design scheme based on AVB,and developed the software and hardware implementation scheme and test scheme.This paper firstly introduces the development course of the vehicle network,especially the Ethernet,and the status of the research and development of Ethernet AVB.Then,the communication technology of Ethernet and AVB can be read and analyzed from various protocols and time synchronization.And then the overall design of onboard infotainment system based on AVB is completed,including functional design,system architecture design,system control flow design,in which the architecture design is based on the principle of highest demand.The hardware and software implementations are described in detail.Finally,the system is verified and tested from network,function,system performance,basic electrical performance and thermal analysis.The system is stable,better real-time.There is no problem with the function,and the function shift is smooth.onboard infotainment system based on Ethernet AVB is introduced in this paper,greatly save the body harness,reduce the weight of the vehicle,has realized the rapid big data communication,to upgrade the onboard infotainment system functionality,performance,provides the technical support.hope that through this article research,to develop with independent intellectual property rights of Ethernet AVB products provide a little reference ideas,eventually on Ethernet AVB technology can get rid of the dependence on foreign companies.