本科毕业设计-基于单片机的汽车行驶状态记录仪.doc

本科毕业设计 基于单片机的汽车行驶状态记录仪 摘 要 汽车行驶记录仪，俗称汽车黑匣子，是对车辆行驶速度、时间、里程以及有关车辆行驶的其他状态信息进行记录、存储并可通过接口实现数据输出的数字式电子记录装置。目前全国各地客运公司、物流公司、旅游公司及危险品运输公司、公交集团及企事业单位都在紧张有序地安装汽车行驶记录仪。本论文首先对汽车行驶状态记录仪进行了简单的介绍，分析了汽车行驶记录仪的研究背景及意义，说明了国内外的研究水平和发展趋势；其次提出了系统的方案设计；紧接着是对汽车行驶记录仪硬件电路的设计，其中包括了电源模块、信号采集模块、单片机模块、键盘模块、存储器模块、显示模块、时钟模块、报警模块等；最后是汽车行驶记录仪几个主要软件的程序设计，包括信号采集程序、数据存储程序、停车预处理程序等。汽车行驶记录仪由于其便携性、可靠性、通用性，在行驶安全、交通执法、运输管理等方面有着重要的作用。随着我国开始建设智能交通系统的进程，汽车行驶记录仪将成为确保现代交通运输安全和高效物流动态运营管理不可或缺的一环。 关键词：汽车行驶记录仪；发展趋势；单片机；模块设计；程序设计 Based on SCM of automobile driving state recorder Abstract Car driving recorder, commonly known as the automobile black box, it is the vehicle speed, time, mileage and vehicles other status information recording and storage can be realized through the interface and the data output of the digital electronic recording device. At present all over the country passenger transportation companies, logistics companies, tourism companies and dangerous goods transport companies, bus group, and all enterprises and institutions in the nervous and orderly to install the car recorder. State in this paper, first of all, on the car recorder has carried on the simple introduction, analyzed the research background and significance of vehicle data recorder, illustrates the research level and development trend at home and abroad; Secondly puts forward the system of scheme design; Followed by the hardware circuit design of the vehicle data recorder, including the power supply module, signal acquisition module, MCU module, keyboard module, memory module, display module, clock module, alarm module, etc.; The last is the program design of several major vehicle data recorder software, including signal acquisition program, data storage, parking preprocessing procedures, etc. Due to its portability vehicle data recorder, reliability, versatility, in road safety, traffic law enforcement, transportation management plays an important role. Start construction process of intelligent t