The Research On Vehicle Intelligent Gateway Under Vehicle Internet

In recent years,with the improvement of people's living standard and life pursuit of higher quality,the using of vehicle has gradually become popular.However,the popularity of vehicle has brought a lot of problems,such as traffic jams and frequent traffic accident.Therefore,aiming at the problems of vehicle service requirement improvement and traffic safety,a set of intelligent transportation system need to establish to meet the needs of market.The emergence of the internet of vehicles can properly solve these problems.Because the core of whole vehicle internet is the communication technology between the vehicle-mounted terminal and the data center of vehicle internet,it is of practical significance to research and implement the vehicle intelligent gateway system supporting the internet of vehicle.Based on the actual project of the enterprise,this paper studies the intelligent gateway system design of vehicle which supports the internet of vehicle by searching and reading relevant research references at home and abroad.First of all,this paper looks up the development and application status of vehicle internet technology and determines the selection scheme of vehicle internet technology under the analysis of vehicle bus technology,communication technology of vehicle internet and diagnostic technology;Secondly,according to the information transmission problem between the data on vehicle network and the external internet,this paper analyzes the function and performance of the vehicle intelligent gateway system.The hardware architecture of the vehicle gateway system is designed to improve the performance and reliability of the gateway hardware and simplify the software design of vehicle gateway systems.Considering the demand diversity of vehicle network and the scalability of vehicle internet product,the software design architecture of vehicle gateway system is given.And this paper defines the interface of user application and other parts.Thirdly,according to the analysis of CAN diagnostic protocol?hardware and software design architecture of intelligent gateway system,this paper complete the hardware and software design of vehicle intelligent gateway system under Texas Instruments' MCU and CCS software.Finally,experiment verified the hardware reliability?communication characteristics?data and function of diagnostic system.