Research Of Vehicle Network Control System Based On ARM And CAN-BUS

As the improvement of car performance and people’s needs, the application of electronic devices,wiring harness are using more and more inside the car, wiring harness inside the vehicle not only account for the space efficient, increasing the difficulty of assembly and maintenance, increased vehicle costs, but also impede the improvement of vehicle reliability. Since the car control unit increasing rapidiyand a large number of different positions located in the car, they also increased the difficulty of the operation of the driver. To make the different automotive electronics systems in a common working environment and increase people’s ease of use, saving the number of conductors, and further reduce costs, we need to find a powerful network systems and automotive control module to achieve the power of this discrete control for convenient and effective.This article uses ARM and CAN bus technology, CAN bus communication network to transmit data, ARM microprocessor as the main controller and high-speed CAN bus communication gateway to high-grade automotive powertrain. Body electronics and monitoring systems and other equipment terminal attached to the CAN bus,makes the complicated wire harness for the fan independent as the data interface nodes, thus completing the luxury car of the terminal equipment in a centralized, effective, convenient control. At the same time, transplanting μClinux operating system on the ARM microcontroller in order to better manages system hardware and software resources. Another study based on the vehicle CAN bus communication network monitoring system designed to achieve integration with the ARM microcontroller development platform for automotive network control system design. This platform, combined with the specific vehicle environment can solve the above problems, and can control the development of intelligent vehicle driving. Then using lightweight graphical user interface support system for the body electronics, use MiniGUI writes the user interface in order to achieve the concentration of terminal equipment and visual control.The paper analyzes the automotive electronics and automotive embedded systems about their general software and hardware, network systems and vehicle classification, vehicle embedded development of the basic methods and processes; the ARM microprocessor and its architecture, embedded programming and W90P710experimental system; completed the CAN bus network protocol analysis and principle, CAN bus module hardware design, Linux device driver structure and the development of CAN bus driver, the CAN driver module compiled under the μClinux system, and loading, etc; I also discuss the Linux operating system’s BootLoader and the principle of transplantation BootLoader, μClinux architecture, theory and analysis, μClinux system crossing compiler and transplantation based on W90P710system; then I talked the graphical interface system MiniGUI and the system interface based on MiniGUI, it includes MiniGUI principle and architecture features, MiniGUI’s installation, operation and transplantation, MiniGUI programming principle and analysis, and the program design of human-computer interaction control interface based on MiniGUI; At the same time i discuss the vehicle monitoring system about its theory and design, to build automotive network control system development platform.Finally, problems are encountered in the paper were summarized and analyzed, and feasibility approachs were also brought up, then on the basis above,thei point out the further research focus and directions to make the system more complete,and more widely used.