發(fā)布時間：2018-07-27 14:29

【摘要】：隨著在嵌入式系統(tǒng)、視頻監(jiān)控、無線傳感器網(wǎng)等相關(guān)領(lǐng)域迅猛發(fā)展,本課題提出構(gòu)建基于嵌入式技術(shù)的視頻物聯(lián)網(wǎng)系統(tǒng),并以融合監(jiān)控理念為依托,拓展視頻物聯(lián)網(wǎng)應(yīng)用到更廣泛的領(lǐng)域中去。發(fā)展嵌入式視頻物聯(lián)網(wǎng)對推動各行業(yè)建設(shè)有著重要意義,是信息化和工業(yè)化的催化劑和助推器。視頻物聯(lián)網(wǎng)中的移動視頻監(jiān)控體系可以作為公共安防和生態(tài)環(huán)境監(jiān)控系統(tǒng)的重要組成部分,以提升系統(tǒng)監(jiān)控能力。本文重點研究了包括移動視頻監(jiān)控技術(shù)在內(nèi)的視頻物聯(lián)網(wǎng)系統(tǒng)的關(guān)鍵技術(shù)研究與實現(xiàn)。其核心內(nèi)容是移動視頻監(jiān)控節(jié)點的設(shè)計實現(xiàn)以及移動自組織網(wǎng)絡(luò)路由算法的改進(jìn)。本文主要工作包括： 本文通過對嵌入式視頻物聯(lián)網(wǎng)系統(tǒng)在國內(nèi)外的研究發(fā)展現(xiàn)狀的分析,仔細(xì)剖析了視頻物聯(lián)網(wǎng)的相關(guān)前沿技術(shù)的發(fā)展,包括嵌入式技術(shù)的發(fā)展、無線多媒體傳感器網(wǎng)絡(luò)發(fā)展等。在分析了視頻物聯(lián)網(wǎng)系統(tǒng)特點與需求后,本文確定了系統(tǒng)節(jié)點的體系結(jié)構(gòu)設(shè)計并完成了系統(tǒng)的軟硬件架構(gòu)方案的論證與設(shè)計,包括采用S3C2440為處理核心硬件開發(fā)平臺,采用雙頻(2.4GHz和5GHz)無線通信方式搭建自組織網(wǎng)絡(luò)降低使用成本,并采用嵌入式Linux系統(tǒng)為操作系統(tǒng)。本文根據(jù)嵌入式節(jié)點的工程實踐需求,完成搭建交叉編譯環(huán)境,以及引導(dǎo)加載程序U-boot、Linux內(nèi)核、根文件系統(tǒng)的移植與配置。 針對視頻物聯(lián)網(wǎng)實踐應(yīng)用過程中,需要部署大量移動視頻監(jiān)控節(jié)點終端等特點,本文提出了一種基于終端移動性量化的AODV(MQDLS-AODV)改進(jìn)型路由協(xié)議以滿足移動監(jiān)控節(jié)點較多且移動性較為頻繁的路由接入需求。通過對系統(tǒng)的集成、路由性能、無線信號質(zhì)量等測試,結(jié)果表明該系統(tǒng)基本達(dá)到了設(shè)計預(yù)期。本文的研究旨在為建設(shè)視頻物聯(lián)網(wǎng)系統(tǒng)提出一種可行的參考,用以提升視頻物聯(lián)網(wǎng)系統(tǒng)監(jiān)控的信息服務(wù)能力。
[Abstract]:With the rapid development of embedded system, video surveillance, wireless sensor network and other related fields, this paper proposes a video Internet of things system based on embedded technology, which is based on the concept of fusion monitoring. Expand the application of the Internet of things to a wider range of areas. The development of embedded video Internet of things is of great significance to promote the construction of various industries and is a catalyst and booster for information and industrialization. The mobile video surveillance system in the Internet of things can be used as an important part of the public security and ecological environment monitoring system to enhance the monitoring ability of the system. This paper focuses on the research and implementation of the key technologies of the Internet of things (IOT) system, including mobile video surveillance technology. Its core content is the design and implementation of mobile video surveillance node and the improvement of mobile ad hoc network routing algorithm. The main work of this paper is as follows: through the analysis of the research and development status of embedded video Internet of things system at home and abroad, this paper carefully analyzes the development of the related frontier technology of the video Internet of things, including the development of embedded technology. The development of wireless multimedia sensor network. After analyzing the characteristics and requirements of the video Internet of things system, this paper determines the architecture design of the system node and completes the demonstration and design of the hardware and software architecture of the system, including the use of S3C2440 as the processing core hardware development platform. Using dual-frequency (2.4GHz and 5GHz) wireless communication mode to build ad hoc network to reduce the cost, and using embedded Linux system as the operating system. According to the engineering practice requirements of embedded nodes, this paper completes the construction of cross-compiling environment and the porting and configuration of U-bootloader Linux kernel and root file system. In the practical application of the Internet of things, a large number of mobile video surveillance node terminals need to be deployed. In this paper, an improved AODV (MQDLS-AODV) routing protocol based on terminal mobility quantization is proposed to meet the needs of more mobile monitoring nodes and more mobile routing access. Through the system integration, routing performance, wireless signal quality testing, the results show that the system basically meets the design expectations. The purpose of this paper is to provide a feasible reference for the construction of video Internet of things system, in order to enhance the information service ability of video Internet of things system monitoring.
【學(xué)位授予單位】：海南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.5;TP391.44

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本文編號：2148121