Design And Implementation Of Vehicle Terminal Equipment In Internet Of Vehicles

With the rapid development of China's economy,the economic pioneer of road traffic is also developing rapidly,and the car parc is increasing year after year.Although the increase in road mileage is to bring convenience to people,the increase in the number of cars,lack of safety awareness,and backward of road safety management have become a very "tricky" problem.Due to internet of vehicles is possible to properly solve our increasingly serious road traffic problems,so that since it has been available,it has got the country's vigorous development.The vehicle terminal is an important access port in the internet of vehicles,is the terminal device for direct interaction between the driver and the internet of vehicles.In this paper,the overall demand analysis of the vehicle terminal is studied and the overall hardware and software architecture is designed.On this basis,the relative core vehicle service and driving record service of the upper software service are selected and designed in detail.The detailed research work is as follows:The location of vehicle terminal is analyzed based on the analysis of vehicle terminal demand,and combined with the current vehicle networking environment.In this paper,the hardware and software levels of the vehicle terminal are analyzed in detail.In the aspect of hardware,the hardware structure of the vehicle terminal is designed,the location and model of vehicle terminal in vehicle are also established.Finally,the hardware module is established on the basis of the analysis of the overall design,and the hardware is selected and integrated according to the required module.In the aspect of software,the Android operating system for the vehicle mounted terminal is selected and Android architecture based on the overall software architecture is designed.According to the requirement analysis,the functional modules are set up for the upper level software of equipment.In this paper,the design and implementation of vehicle call service and traffic record service in its upper level software are discussed in detail: car call service is divided into four sub-modules,including the core module for the use of Bluetooth technology to achieve the Bluetooth phone;although it is the basis of service,I have made an innovative feature optimization in the three aspects of Bluetooth connection logo,multi-audio concurrent,and Bluetooth automatic reconnection,and the use of call suspension window program allows users to use the device at the same time when using other functions,which fit scenarios in vehicle networking;The design and implementation of sub modules of Bluetooth phonemodule and synchronous contact module are described in detail.Traffic record service is divided into six sub-modules,I have put forward a lightweight traffic recording video implementation,and gives the advantages and innovations of this method;In the process of completing this function,it has overcome the difficult problem that Android device can not be used to access the camera's problem,for the car terminal to save the cost of installing the second camera and reduce the consumption of the system resources;Finally,the design and implementation of the video module,cloud photo module,video player module and other modules are described in detail.After the completion of the equipment in the test,in hardware,I have done the test for the overall functional testing and component connection test;in software,I have tested the overall ease of use test,and then tested the detailed functions of the vehicle call and traffic record service which described in this paper.The test results show that the device is well implemented and compared to other on-board equipment,it has improved greatly.I have designed and implemented such a vehicle terminal equipment,not only the common functions during the driving process are integrated,but also optimized and improved with the vehicle network environment.It can take on the entrance of the internet of vehicles and serve as a solid node for the rapid development of internet of vehicles and increasingly complicated travel.