对基于CAN(controllerareanetwork)总线的行车记录仪设计和实现进行了探讨,详细阐述了系统的整体结构、硬件电路设计和软件设计流程。开发的行车记录仪用于在车辆行驶过程中实时采集和显示汽车CAN总线数据信息,并将数据存储在U盘中,以U盘为载体传输给PC机,可运用PC机上的软件对数据进行分析。该系统已成功应用于奇瑞汽车A5车型,并取得良好效果。
The design and implementation of vehicle information recorder based on CAN bus is studied, and tbe whole structure, hardware electric circuit of the system and software design process are introduced. The vehicle information recorder which design is used to collect and display the information of CAN on driving vehicle, store the collected information into USB and then transfer to PC, the information is analyzed using software within PC. This system is already applied in Chery A5 successfully.