Design And Development Of T-BOX Vehicle Networking Application Software Based On Embedded Linux

Vehicle network is an important part of the intelligent transportation system.It can effectively solve traffic jams and traffic accidents,and is of great significance to people's safe travel.Vehicle network mainly uses vehicles and roads,vehicles and vehicles,vehicles and people,and real-time networking between vehicles and cities to realize the interconnection of information.The T-BOX vehicle network application software based on embedded Linux designed in this paper achieves the vehicle information collection and remote control of the vehicle by establishing the network communication between the vehicle and the server.The paper uses I.MX6 development board equipped with embedded Linux operating system to establish communication between vehicle and remote server.The related technologies used in the design of T-BOX application software are studied,including network communication protocols,automotive bus technologies,GPS protocol standards,and security encryption algorithms.In addition,the paper has studied and detailedly introduced the hardware module circuit of the T-BOX,for example,CAN protocol conversion circuit,positioning module circuit and battery charge and discharge circuit.This paper uses Ubuntu14.04 of PC as the software development environment,including the cutting and compiling of BootLoader,kernel and file system,and the cross-compilation of application software.Through the establishment of Socket CAN,gpsd installation and the realization of TCP connection,CAN communication,GPS data analysis and network communication based on embedded Linux operating system are completed.The paper uses RSA and AES combined message encryption method to complete the software design and implementation of vehicle information collection,vehicle remote control,vehicle positioning,start-up and emergency rescue modules.Finally,the paper uses CANoe software to build a simulation test model,and carries out simulation test and real vehicle test on the vehicle information acquisition module and remote control module.It shows the real-time performance of the module and the accuracy of the data,and verifies the feasibility of the software solution.