文档介绍：摘要
汽车行驶记录仪是一种特殊的数字式电子记录装置,它可以对车辆行驶速度、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,然后通过USB和RS232接口实现数据输出。汽车行驶记录仪的使用不仅可以遏止交通违章、约束驾驶员不良驾驶习惯,而且可以有效地预防道路交通事故的发生,并为执法人员进行事故的分析、处理提供科学、可靠的原始数据,因此在交通运输管理中发挥着十分重要的作用。针对目前汽车行驶记录仪的研究现状,本文设计和实现了一种基于51单片机的汽车行驶记录仪,该汽车行驶记录仪具有实时性好、可靠性商、价格低廉等特点。
本文主要内容:
介绍了汽车行驶记录仪的一些主要器件的功能、性能和使用,深入地研究了USB技术。完成了数据采集模块的软、硬件制作及调试。文中对该系统中各个软件模块的功能及实现进行了详细的描述,并给出了相应的结构图。
关键词: 汽车行驶记录仪单片机数据采集系统
Abstract
Vehicle traveling data recorder(VTDR) is a special digital electronic recorder which used to acquire and store vehicle’s traveling speed、time、distance and other related status information,and then transmit data via USB and RS232 use of vehicle traveling data recorder can not merely halt the break in traffic rules and regulations, restrain the drivers from being drive at bad habit,and Call prevent the traffic accident effectively ,it Call also offer scientific, faithful initial data for the tipstaffs carries on the it plays a very important role in transportation to the actuality of the VTDR research,a VTDR is designed in this paper which bases on the 51 also has some characteristics such as
real—time、high dependability and less cost.
In this article we introduced the basical knowledge of the USB technique and the FAT(File Allocation Table) file also introduce the function,performance and usage of the main IC used in this have finished my USB module’s making and this article we have give the detailed description of the firmware and give some advices of hardware and software making and debugging.
Keywords:Vehicle Traveling Data Recorder;Single Chip puter;System of data collected
目录
摘要 I
Abstract II
第1章绪论 1
1
汽车行驶记录仪的起源 1
汽车行驶记录仪在我国的发展情况 1
1
汽车行驶记录仪的基本情况 2
2
2
本系统的设计目标和特点 3
第2章系统总体方案设计 4
4
4
电气性能要求 4
数据分析软件性能要求 5
设计方案的选择 6
微控制器的选择 6
.