基于ARM7的智能交通車載信息采集裝置的設計
發(fā)布時間：2019-01-26 19:19
【摘要】：在智能交通系統(tǒng)（ITS）中，通過浮動車輛獲取城市道路交通流信息是一種可行、高效的辦法�？梢詮浹a傳統(tǒng)使用路面設施進行交通流信息采集中投資大，建設周期長，而且只能得到有限路段或地點信息的缺點。本文介紹了一種利用GPS技術和GPRS通信技術獲取城市道路交通流信息的方法，并設計了智能交通車載終端來完成交通信息的采集和發(fā)送。 本文首先介紹了通過浮動車輛獲取城市道路交通流信息的基本思想，接著給出了系統(tǒng)的工作原理、結構組成。然后分別用一章分析了GPRS通信技術及組網(wǎng)方式和GPS技術并根據(jù)要求討論了NMEA0813協(xié)議及其解析。接著重點介紹了車載終端的硬件和軟件設計。在硬件上，采用了基于ARM7核的嵌入式系統(tǒng)方案，，設計了主要部分的電路。在軟件上，以開放源碼的實時嵌入式操作系統(tǒng)μC/OS-II作為軟件開發(fā)平臺。詳細討論了μC/OS-II在ARM7核的嵌入式系統(tǒng)上的移植和基于μC/OS-II的程序設計方法，并給出了智能交通車載終端中任務的劃分和實現(xiàn)方法。 論文最后總結了主要的研究內(nèi)容和所做的開發(fā)工作，對今后工作進行了展望。
[Abstract]:In the intelligent transportation system (ITS), it is a feasible and efficient method to obtain the information of urban road traffic flow by floating vehicles. It can make up for the shortcomings of the traditional use of pavement facilities in traffic flow information collection, such as large investment, long construction period, and only limited road section or location information. This paper introduces a method of obtaining traffic flow information of urban road by using GPS technology and GPRS communication technology, and designs an intelligent traffic vehicle terminal to collect and transmit traffic information. This paper first introduces the basic idea of obtaining the information of urban road traffic flow by floating vehicles, and then gives the working principle and structure of the system. Then, the GPRS communication technology, networking mode and GPS technology are analyzed in a chapter, and the NMEA0813 protocol and its resolution are discussed according to the requirements. Then the hardware and software design of the vehicle terminal is introduced. In hardware, the embedded system scheme based on ARM7 core is adopted, and the main circuit is designed. In software, the open source embedded operating system 渭 C/OS-II is used as the software development platform. The transplant of 渭 C/OS-II on the embedded system of ARM7 core and the programming method based on 渭 C/OS-II are discussed in detail, and the partition and implementation of tasks in the intelligent transportation vehicle terminal are given. Finally, the main research contents and development work are summarized, and the future work is prospected.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：U463.6;TP368.1
本文編號：2415818
[Abstract]:In the intelligent transportation system (ITS), it is a feasible and efficient method to obtain the information of urban road traffic flow by floating vehicles. It can make up for the shortcomings of the traditional use of pavement facilities in traffic flow information collection, such as large investment, long construction period, and only limited road section or location information. This paper introduces a method of obtaining traffic flow information of urban road by using GPS technology and GPRS communication technology, and designs an intelligent traffic vehicle terminal to collect and transmit traffic information. This paper first introduces the basic idea of obtaining the information of urban road traffic flow by floating vehicles, and then gives the working principle and structure of the system. Then, the GPRS communication technology, networking mode and GPS technology are analyzed in a chapter, and the NMEA0813 protocol and its resolution are discussed according to the requirements. Then the hardware and software design of the vehicle terminal is introduced. In hardware, the embedded system scheme based on ARM7 core is adopted, and the main circuit is designed. In software, the open source embedded operating system 渭 C/OS-II is used as the software development platform. The transplant of 渭 C/OS-II on the embedded system of ARM7 core and the programming method based on 渭 C/OS-II are discussed in detail, and the partition and implementation of tasks in the intelligent transportation vehicle terminal are given. Finally, the main research contents and development work are summarized, and the future work is prospected.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：U463.6;TP368.1
【參考文獻】
相關期刊論文 前10條
1 董敬欣,吳建平;使用浮動車檢測OD矩陣的算法及可靠性分析[J];北京交通大學學報;2005年03期
2 張晶,曾憲云;嵌入式系統(tǒng)概述[J];電測與儀表;2002年04期
3 何立民;嵌入式系統(tǒng)的定義與發(fā)展歷史[J];單片機與嵌入式系統(tǒng)應用;2004年01期
4 余永權;嵌入式系統(tǒng)的技術和發(fā)展(上)[J];電子世界;2004年09期
5 余永權;嵌入式系統(tǒng)的技術和發(fā)展(下)[J];電子世界;2004年10期
6 張茁,李奇平,鮑青龍;基于GPS/GIS/GSM車輛動態(tài)定位導航系統(tǒng)[J];河北理工學院學報;2004年04期
7 馬驥,裴玉龍;智能交通系統(tǒng)(ITS)信息采集技術評述[J];哈爾濱工業(yè)大學學報;2003年01期
8 程保煒,劉文珂;嵌入式系統(tǒng)及其開發(fā)應用概述[J];長江大學學報(自科版);2004年04期
9 甘靈;;流動車輛數(shù)據(jù)采集方法及應用[J];交通運輸工程與信息學報;2006年03期
10 張存保;楊曉光;嚴新平;;基于浮動車的交通信息采集系統(tǒng)研究[J];交通與計算機;2006年05期
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