Design And Simulated Implementation Of CAN-based Vehicle Safety Driving Assist System Control Platform

With the booming development of economy and technology, more and more equipments and technologies are used on security defense and alarm of vehicle in order to ensure traffic safety. Installing these equipments on vehicle, and collecting more accurate, more real-time informations is the most basic work. After that, the informations is processed by the specific technology and is offered to the driver in a certain way. Finally implementation of the auxiliary functions could be achieved.In this thesis, data acquisition and risk alarm based on CAN is simulated. In order to connect various acquisition equipments more flexible, embedded front-end computer is designed, which is in favor of undersizing connection interface and be prone to install. Except for controlling nodes, Binding data which is collected at the same time is critical task. Master station polls the nodes to get data, bind data, and finally implement alarm.In this thesis, firstly, the more popular VAN(vehicle area network) is introduced and compared, and CAN was choosed as the based network of the system. Secondary, the related technologies of CAN and the application layer protocol of CAN which is called iCAN(industry control area network) are specified. Thirdly, the structure of hardware and software are designed. In hardware, three network structure and embeded front-end computer is proposed, then hardware requirement is analysed, at last AnyCAN is picked to be the kernel module of the front-end computer to achieve interface function. In software, network administration scheme is put forward, which is composed of software management conFig.uration and communication process. Following, design and implementation of the system function are illustrated, mainly including network control platform, alarm, and data binding. The principle, the algorithm and implementation are elaborated. Finally, system testing is described and the system platform is summarized. Some places where need to be improved are pointed out.