摘要：随着时代的发展，人类的出入都离不开汽车，无论是上班族﹑学生族还是老人小孩每天都会通过乘车或自驾来出入各种场所。随着车辆的增多，交通无疑成了人们日常生活中必不可少的一个环节，人们几乎每时每刻都会关心交通是否拥挤。所以，在当今交通调查是一项非常重要的基础工作。调查资料是进行交通规划、交通分析、道路交通设施设计、建设及运营管理、交通管理与控制、交通安全和交通流理论等方面实践与研究的重要依据。只有详细的实时交通调查才能让人们的日常出行变得不再拥挤，同时也能让道路交通变得安全而有序。不仅方便了人们的日常出行，更可以保证不必要的事故发生。为此本课题实现一种便携式的交通调查工具。系统以单片机为主控制器，实现数据采集和存储；通过单片机与PC 机的通讯实现数据的传输。21085
毕业论文关键词：    交通数据；单片机；数据采集与存储；虚拟串口；数据传输
Traffic Data Collection Design
Abstract:     With the development of the times, humans are inseparable from the car and out, whether it is family or student workers ﹑ children and senior citizens every day by bus or car to access a variety of places. With the increase in vehicle traffic will undoubtedly become the people's daily life an essential part, almost all the time people will care whether traffic . So, in today's traffic survey is a very important foundation work. Survey was conducted transportation planning, traffic analysis aspects important basis, road transport facility design, construction and operation management, traffic management and control, traffic safety and traffic flow theory practice and research. Only detailed real-time traffic surveys to make human daily travel is no longer crowded, but also allow the safe and orderly road becomes. Not only facilitate people's daily travel, but also to ensure that unnecessary accidents. Implementation of a portable traffic survey tools for this purpose the subject. Microcontroller-based system controller makes data acquisition and storage; realize the transmission of data through the communication microcontroller and PC.
Keywords:    Traffic data; Singer chip microcomputer; data acquisition and storage; virtual serial port; data transmission
目录
摘要    i
Abstract    i
目录    ii
1    绪论    1
1.1    课题背景及研究意义    1
1.2    课题设计目的    1
1.3    国内外研究现状与水平    2
1.4    发展趋势    3
2    分析    4
2.1    具体采集的数据要求分析    4
2.2    具体制作要求分析    4
2.3    系统的总体工作原理    4
2.4    80C51单片机简介    5
2.4.1    80C51单片机主要特性    6
2.4.2    820C51单片机管脚图    6
2.4.3    80C51单片机的中断系统    7
2.5    PROTEUS简介    7
2.6    KEIL软件简介    8
2.7    其他元件的简介    9
3    系统硬件设计与实现    10
3.1    单片机AT89C52芯片    10
3.1.1    选择依据    10
3.1.2    单片机AT89C52的I/O分配图    11
3.2    LCD显示的设计    11 51单片机交通数据采集器设计:http://www.youerw.com/zidonghua/lunwen_13136.html