近年来，视频监控因其直观、方便、快速的特点，在各行各业都得到了广泛的应用，特别是在小区安保、金融现场、交通控制以及国防安全等方面，已经成为视频监控渗透的主要领域。警卫勤务作为一种特殊的监控保卫任务，利用视频监控能够促进保卫任务的圆满完成。而且，随着互联网技术的不断发展，基于计算机网络的视频监控成为监控领域最普遍也最先进的应用方式之一，在警卫勤务方面的监控也实现了自动化。但是，当前的警卫勤务视频监控大多数还是基于传统有线局域网络的基础上实现的，这种方式需要通过复杂的布线、周密的布防才能完成，有线局域网的自身的局限性限制了警卫勤务视频监控的发展，显现出监控范围小、传输性能低、可移动性差等缺点，根本无法满足越来越严峻的警卫勤务形势。因此，在警卫勤务的视频监控方面，迫切需要进行完善，实现及时、灵活、方便的监控特点，保障警卫勤务任务的顺利完成。
本文重点讨论了基于无线Mesh网络的警卫监控系统的原理、设计及实现过程。首先在对国内外无线Mesh网络应用及研究的基础上，明确本文研究的主要内容；然后对无线Mesh网络的基本理论进行了研究，包括无线Mesh网络的概念、组成和基本结构，以及无线Mesh的关键技术与优越性；之后根据警卫勤务的具体需求，对实现基于无线Mesh网络的警卫监控系统进行了可行性分析与需求分析，分别从技术、操作、经济及安全可行性方面进行分析，同时从功能需求、性能需求及安全需求方面进行了深入探讨；在此基础上，对无线Mesh网络的警卫监控系统的总体架构进行了明确，设计了系统的功能模块，并就系统实现所需要的业务流程、数据库、安全性等方面展开全面设计；最后在全面设计的基础上，对系统进行实现，主要包括对系统无线Mesh网的配置、视频采集与控制模块的实现以及警卫部署模块的实现，并针对完成的系统展开测试，测试结果能够满足警卫勤务需求。
关键词：无线网状网；视频监控；警卫勤务；视频采集；传输
In recent years, the video surveillance are widely used because of its intuitive, convenient, fast in all walks of life, especially in residential security, financial scene, traffic control and national defense security, video surveillance penetration areas. Guard duty as a special monitor security tasks, the use of video surveillance can contribute to the successful completion of the security tasks. And, as Internet technology continues to evolve, become one of monitoring the most common and most advanced application of computer network-based video surveillance, monitoring automated guard duty. However, the guard service video surveillance most of the traditional wired local area network based on the basis of realized, this approach requires careful deployment to complete complex wiring and wired LAN limitations restrict video surveillance of the guard duty development, showing the scope of monitoring, low transmission performance, poor mobility shortcomings, simply can not meet more and more severe situation of guard duty. Therefore, in the video surveillance of the guard duty, there is an urgent need to be refined to achieve a timely, flexible and convenient monitoring of the characteristics of successful completion of the protection guard duty tasks.
This article focuses on the principle, guard monitoring system based on wireless mesh network design and implementation process. First on the basis of domestic and international wireless mesh network applications and research, clearly this study the main content; then study the basic theory of Wireless Mesh Networks, including concept, composition and basic structure of the Wireless Mesh Networks Wireless Mesh key technology and superiority; after, according to the specific needs of the guard duty, Guard Monitoring System Based on Wireless Mesh Networks for achieving feasibility analysis and demand analysis, respectively, from the technical, operational, economic and security terms of feasibility, from both functional requirements, performance requirements and security needs in-depth discussions; On this basis, the overall architecture of the Wireless Mesh Networks guard monitoring system, a clear design of the functional modules of the system, and systems to achieve the required business processes database, security and other aspects to carry out comprehensive design; on the basis of a comprehensive design of the system to achieve, including video acquisition and control modules to achieve as well as security deployment module to achieve the configuration of the Wireless Mesh Network System, and for completion of the system to expand the test results to meet the demand for guard duty.
Key words: Wireless mesh network; video surveillance; guard duty; video capture; transmission
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