【摘要】 基于ARM+DSP的汽车视频黑匣子(即汽车行驶记录仪)除了按国家有关标准对汽车的基本行驶状态数据进行实时保存外,与市场上同类产品相比,具有视频方面的功能优势。通过ARM+DSP协调工作的方式,实现了视频图像的压缩和存储,能够循环存储十分钟的视频图像。本系统的应用可为分析、判断汽车行驶状态和交通事故提供可靠的科学依据,在监督司机疲劳驾驶和违章驾驶等方面也有着重要作用。主要按照功能模块划分介绍了汽车视频黑匣子系统的各个基本功能,并给出基本的设计流程图。更多还原

【Abstract】 The black box of vehicle(also named vehicle traveling data recorder) based on ARM+DSP was an intelligent device which could be used for monitoring and recording the situations of the vehicle during traveling.This device was an important improvement on the conventional devices of similarity which only recorded the basic vehicle traveling status.It was remarkable that this device offered video recording function that circularly recorded the environment inside and outside the vehiclefor ten minutes.The application of the device could provide reliable and accurate scientific basis in order to analyze and judge the vehicle’s traveling state in dealing with traffic accidents.Besides that,the over time diving and driving disobey the rule of the drivers could also be reduced.The article discussed the functions of the black box of vehicle and the basic flow chat of the software design.更多还原