基于P2P的分層車聯(lián)網(wǎng)系統(tǒng)設(shè)計
本文選題:智能交通 + 車聯(lián)網(wǎng); 參考:《廣東工業(yè)大學(xué)》2014年碩士論文
【摘要】:智能交通指使用計算機和電信技術(shù)以加強車輛的功能性,提高駕駛員生產(chǎn)效率和行車安全性,通常通過車輛電子設(shè)備的數(shù)據(jù)交換實現(xiàn)。車聯(lián)網(wǎng)是智能交通典型應(yīng)用,涵蓋整個道路服務(wù)系統(tǒng),車聯(lián)網(wǎng)系統(tǒng)具有收集路面狀況、監(jiān)測空氣尾氣含量、跟蹤行駛中的車輛位置、恢復(fù)被盜車輛、管理道路擁堵和給出最佳行車路線建議等功能。車聯(lián)網(wǎng)的遠(yuǎn)程信息處理在商業(yè)用途中有廣泛應(yīng)用前景,通過移動車輛中的嵌入式設(shè)備使得車輛通過無線數(shù)據(jù)通信,融合專用的后臺管理系統(tǒng)處理信息 目前車主對實時交通信息服務(wù)需求逐步增長,同時考慮將現(xiàn)有基礎(chǔ)設(shè)施融入到車輛網(wǎng)中,支持原有的服務(wù)。車聯(lián)網(wǎng)和傳統(tǒng)網(wǎng)絡(luò)有明顯區(qū)別:車輛不斷移動,移動的速度和方向是隨機的;不能使用固定連線使得車輛接入傳統(tǒng)的網(wǎng)絡(luò);不同區(qū)域的車輛密度差別很大等。因此不能直接利用現(xiàn)有網(wǎng)絡(luò)技術(shù)構(gòu)建車輛網(wǎng)系統(tǒng),需要針對隨機移動的車輛改進(jìn)無線連接網(wǎng)絡(luò)技術(shù),適應(yīng)動態(tài)變化的網(wǎng)絡(luò)拓?fù)?本論文主要實現(xiàn)基于P2P的分層車聯(lián)網(wǎng)系統(tǒng)設(shè)計,在車聯(lián)網(wǎng)系統(tǒng)網(wǎng)絡(luò)接口層使用專用高速無線環(huán)境IEEE802.11p協(xié)議,網(wǎng)絡(luò)層添加路側(cè)功能單元搭建分層網(wǎng)絡(luò)架構(gòu),應(yīng)用層使用基于地理位置的改進(jìn)的P2P協(xié)議。實現(xiàn)網(wǎng)絡(luò)拓?fù)洳粩嘧兓h(huán)境下,車輛資源的有效索引和共享,為用戶提供可靠和連續(xù)服務(wù)。 文章首先討論傳統(tǒng)車聯(lián)網(wǎng)架構(gòu)設(shè)計,論述了車聯(lián)網(wǎng)基本功能、組網(wǎng)結(jié)構(gòu)、用戶應(yīng)用需求和典型的實現(xiàn)方式,研究現(xiàn)有車聯(lián)網(wǎng)所遇到難題,包括間斷的連接、有限的數(shù)據(jù)傳輸、較差可擴(kuò)展性和不可靠用戶應(yīng)用等;然后介紹包含路側(cè)功能單元的新型車聯(lián)網(wǎng)系統(tǒng)與傳統(tǒng)車-車和車-基站組成車輛體系區(qū)別與聯(lián)系,討論路側(cè)單元的作用;最后分析P2P技術(shù)原理和應(yīng)用范圍,討論改進(jìn)的P2P技術(shù)對車輛資源搜索效率增加和網(wǎng)絡(luò)開銷減少。文章給出路側(cè)單元軟件設(shè)計原理、程序流程分析圖和arm硬件平臺上Linux系統(tǒng)路側(cè)單元軟件最終實現(xiàn);詳細(xì)討論在車輛網(wǎng)內(nèi)部采用改進(jìn)P2P資源共享方式工作原理和方法,使得車輛通信減少冗余信息同時提高連接可靠性,同時使用改進(jìn)P2P不降低服務(wù)質(zhì)量基礎(chǔ)上擴(kuò)展系統(tǒng)容量。
[Abstract]:Intelligent Transportation refers to the use of computer and telecommunications technology to enhance vehicle functionality, improve driver productivity and driving safety, usually through the vehicle electronic equipment data exchange. Car networking is a typical application of intelligent transportation, covering the entire road service system, which collects road conditions, monitors air exhaust content, tracks the location of moving vehicles, and recovers stolen vehicles. Management of road congestion and give the best route recommendations and other functions. The remote information processing of vehicle networking has a wide application prospect in commercial use. The embedded device in mobile vehicle enables the vehicle to communicate through wireless data, and integrates the special background management system to process information. At present, the demand of vehicle owners for real-time traffic information services is gradually increasing, while considering the integration of existing infrastructure into the vehicle network to support the original services. There are obvious differences between the vehicle network and the traditional network: the vehicle keeps moving, the speed and direction of movement are random; the vehicle can not connect to the traditional network by using fixed connection; the density of the vehicle varies greatly in different areas. Therefore, the existing network technology can not be directly used to build the vehicle network system. It is necessary to improve the wireless connection network technology for the random moving vehicles to adapt to the dynamic network topology. This paper mainly realizes the design of the layered vehicle networking system based on P2P. In the network interface layer of the vehicle networking system, the dedicated high-speed wireless environment IEEE802.11p protocol is used, and the network layer adds the road-side function unit to build the layered network architecture. The application layer uses an improved P2P protocol based on geographical location. Under the changing environment of network topology, the efficient indexing and sharing of vehicle resources can provide users with reliable and continuous services. This paper first discusses the design of traditional vehicle networking architecture, discusses the basic function of vehicle networking, networking structure, user application requirements and typical implementation methods, studies the problems encountered in the existing vehicle networking, including discontinuous connection, limited data transmission. Then the paper introduces the differences and connections between the new vehicle networking system and the traditional vehicle-vehicle and vehicle-base station system, and discusses the role of the road-side unit. Finally, the principle and application scope of P2P technology are analyzed, and the improved P2P technology is discussed to increase the efficiency of vehicle resource search and reduce the network overhead. This paper gives the design principle of road-side unit software, the program flow analysis diagram and the final realization of Linux system road-side unit software on arm hardware platform, and discusses in detail the working principle and method of improving P2P resource sharing mode in vehicle network. It can reduce the redundant information and improve the reliability of the connection. At the same time, the system capacity can be expanded on the basis of using the improved P2P not to reduce the quality of service.
【學(xué)位授予單位】:廣東工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TP393.02;TP391.44;TN915.04
【參考文獻(xiàn)】
相關(guān)期刊論文 前7條
1 黃偉;張杰;;CRM系統(tǒng)中小型機與x86服務(wù)器應(yīng)用對比分析[J];電信工程技術(shù)與標(biāo)準(zhǔn)化;2013年06期
2 周伯生,吳介一,張颯兵;MANET路由協(xié)議研究進(jìn)展[J];計算機研究與發(fā)展;2002年10期
3 徐武,胡昌振,譚惠民;UNIX系統(tǒng)行為安全特性及其防護(hù)研究[J];計算機工程與應(yīng)用;2002年21期
4 羅存福;;應(yīng)用GPS監(jiān)控技術(shù)深化車輛管理[J];科技與企業(yè);2012年05期
5 韋麗霜;;P2P網(wǎng)絡(luò)共享編程中常見問題與處理[J];軟件導(dǎo)刊;2010年12期
6 王婕;王亞美;廖婧;趙婧文;;P2P網(wǎng)絡(luò)搜索技術(shù)[J];計算機系統(tǒng)應(yīng)用;2013年01期
7 劉露;;城市交通低碳發(fā)展的智能化選擇[J];中國科技論壇;2013年06期
相關(guān)碩士學(xué)位論文 前8條
1 王波;基于Solaris下的綜合導(dǎo)航信息處理平臺的軟件設(shè)計與實現(xiàn)[D];哈爾濱工程大學(xué);2010年
2 李霞;MVC設(shè)計模式的原理與實現(xiàn)[D];吉林大學(xué);2004年
3 張麗[?;動態(tài)交通信息發(fā)布技術(shù)的研究[D];上海交通大學(xué);2007年
4 況櫻;3G融合計費方案的研究[D];南昌大學(xué);2009年
5 宋宏斌;城市車輛網(wǎng)絡(luò)中數(shù)據(jù)緩存技術(shù)研究[D];國防科學(xué)技術(shù)大學(xué);2009年
6 胡銳;面向NGN的M2M無線接入網(wǎng)關(guān)的設(shè)計與實現(xiàn)[D];江蘇科技大學(xué);2011年
7 周松;高性能多源下載系統(tǒng)關(guān)鍵技術(shù)研究與實現(xiàn)[D];哈爾濱工程大學(xué);2012年
8 焦立彬;無線入侵檢測系統(tǒng)的設(shè)計與實現(xiàn)[D];華中科技大學(xué);2012年
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