基于嵌入式的视频物联网关键技术研究
发布时间：2018-07-27 14:29
【摘要】：随着在嵌入式系统、视频监控、无线传感器网等相关领域迅猛发展,本课题提出构建基于嵌入式技术的视频物联网系统,并以融合监控理念为依托,拓展视频物联网应用到更广泛的领域中去。发展嵌入式视频物联网对推动各行业建设有着重要意义,是信息化和工业化的催化剂和助推器。视频物联网中的移动视频监控体系可以作为公共安防和生态环境监控系统的重要组成部分,以提升系统监控能力。本文重点研究了包括移动视频监控技术在内的视频物联网系统的关键技术研究与实现。其核心内容是移动视频监控节点的设计实现以及移动自组织网络路由算法的改进。本文主要工作包括： 本文通过对嵌入式视频物联网系统在国内外的研究发展现状的分析,仔细剖析了视频物联网的相关前沿技术的发展,包括嵌入式技术的发展、无线多媒体传感器网络发展等。在分析了视频物联网系统特点与需求后,本文确定了系统节点的体系结构设计并完成了系统的软硬件架构方案的论证与设计,包括采用S3C2440为处理核心硬件开发平台,采用双频(2.4GHz和5GHz)无线通信方式搭建自组织网络降低使用成本,并采用嵌入式Linux系统为操作系统。本文根据嵌入式节点的工程实践需求,完成搭建交叉编译环境,以及引导加载程序U-boot、Linux内核、根文件系统的移植与配置。 针对视频物联网实践应用过程中,需要部署大量移动视频监控节点终端等特点,本文提出了一种基于终端移动性量化的AODV(MQDLS-AODV)改进型路由协议以满足移动监控节点较多且移动性较为频繁的路由接入需求。通过对系统的集成、路由性能、无线信号质量等测试,结果表明该系统基本达到了设计预期。本文的研究旨在为建设视频物联网系统提出一种可行的参考,用以提升视频物联网系统监控的信息服务能力。
[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.
【学位授予单位】：海南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5;TP391.44
本文编号：2148121
[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.
【学位授予单位】：海南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5;TP391.44
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