汽车行驶记录仪

• This system is exploited completely according to national standard of vehicle traveling data recorder , can implement all of the function of the national standard of vehicle traveling data recorder , including date , time , car speed , mileage , start time , stop time , driving time , over speed , overtime , alarm of over speed and overtime , status identify of ic card , and many kind of status of on - off signal , including on - off vehicle door , brake status , turn signal status , dipped headlight and high beam etc .
  本系统就是完全依照汽车行驶记录仪的国家标准而开发的,目标是实现国家标准中规定的所有汽车行驶记录仪应该达到的功能指标,包括可靠记录日期、时间、车速、行驶里程、开车时刻、停车时刻、行驶时间、超速时间、超时时间、超速超时告警、 ic卡身份识别等信息和车门开关、刹车状态、方向灯状态、近/远光灯等各种开关信号的状态的功能。
• This paper have discussed in detail the automtibile that becomes by pic single flat organization travel the basically working principle of recorder systematic overall design , the interface design of memory and single flat machine , the interface design of the single flat machine and clock of real time , speed sensor design and the small - sized switch design of power source , systematic hardware and software realization method , as well as software process and data form the design of the user interface stipulated
  本文详细论述了由pic单片机构成的汽车行驶记录仪系统的整体设计、单片机与存储器的接口设计、单片机与实时时钟的接口设计、速度传感器设计、小型开关电源设计的基本工作原理，系统硬件及软件实现方法，以及软件流程、数据格式约定和用户界面的设计。