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1、杭州电子科技大学 硕士学位论文 基于Web的远程监控和信息平台的研究与设计 姓名：张雷 申请学位级别：硕士 专业：计算机应用技术 指导教师：胡维华 20091101 杭州电子科技大学硕士学位论文 I 摘 要 随着互联网技术的飞速发展和企业信息化的快速推进，将传统的监控系统与 Web 技术相 结合的 B/S 模式的计算机远程监控系统已成为研究的一个热点，构建基于 Web 的工业监控系 统成为工业监控领域发展的方向之一。传统的监控系统有很多的不足之处，远程监控端与企 业信息网之间的数据得不到有效传输并且动态数据的发布满足不了实时性要求；同时监控数 据在网络中传输时，安全性得不到保障，数据极易受到攻
2、击、窃取；以及服务器端采用单台 服务器提供远程监控端访问，当访问量过大时，常常出现过载现象，使监控系统的性能效率 低下。 本文结合商品砼远程监控项目，展开基于 Web 的远程监控和信息平台的研究，着重对以 上的这些问题进行研究与实践工作。论文首先对课题的研究背景、国内外发展趋势进行了深 入的分析，并对远程监控系统的基本原理及分类进行了详细的阐述；接着对监控系统的实时 数据库技术、数据库访问技术、动态数据发布技术进行详细的分析研究，从远程监控系统的 集成角度出发，采用了流式套接字实时通信技术实现远程监控终端与企业信息网之间的数据 传输，通过 ActiveX 控件的形式把现场监测设备采集的实时数据
3、在远程监控终端进行动态发 布； 其次， 根据工业远程监控的三层结构模型， 详细分析了各层， 对远程监控系统中的 Winsock 通信、数据库、客户端进行了设计；再次，针对商品砼远程监控系统对数据安全性的要求， 分析了当前影响数据安全传输的因素，提出了基于 IPSec 的虚拟专用网来保证监控数据在公 网中的传输，以此来提高远程监控系统的安全性；针对当前远程监控系统服务器过载性问题， 提出了 Web 服务器集群的负载均衡方法，通过对传统负载均衡算法的改进，较好地解决了服 务器端负载均衡性问题；最后，对商品砼远程监控和信息平台的部分功能进行了实现。 本系统采用 VB 6.0 开发人机交互 Activ
4、eX 控件， 用 JSP 开发 Web 服务器页面。 实现的基 于 Web 的远程监控和信息平台对传统监控系统的实时性有了提高，同时改善了监控数据在公 网中传输安全和服务器过载性问题。 通过对基于 Web 的商品砼远程监控和信息平台的研究与设计，一方面探讨研究了远程监 控系统实现过程中遇到的问题；另一方面能够对其它类似性质的远程监控系统的研究提供一 定的借鉴和帮助。 关键词：远程监控，Web，套接字技术，ActiveX，虚拟专用网，负载均衡 杭州电子科技大学硕士学位论文 II ABSTRACT The current rapid development of Internet technolo
5、gy and the rapid progress of information technology companies, the traditional monitoring systems combined with Web technology of B/S mode of the computer remote monitoring system has became a research hotspot, which build the monitoring system is becoming the direction for the industrial monitoring
6、 field. Traditional monitoring systems have a lot of deficiencies, the data can not be effectively transmitted between the remote monitoring terminal and enterprise information network; at the same time the monitoring data transmission in the network, the security can not be guaranteed and vulnerabl
7、e to attack, theft; and server-side uses a single server to providing remote monitoring client access, while the volume of traffic, it is often overload phenomenon occurs, so that makes the monitoring system inefficient. The thesis combined with commercial concrete remote monitoring system, expandin
8、g the study for the remote monitoring and information platform based on Web, focusing on these issues over research and pritical work. Firstly, the thesis has in-depth analyzed and studyed of the background, domestic and international trends, and described in detail about the remote monitoring syste
9、m with the basic principles and categories; then, conducting a detail research and analyze the the real-time database technology, database access technology, the dynamic data distribution technology of the monitoring system, in terms of monitor system integration, the thesis has adopted stream Socke
10、t real-time communication technology to realize the data transmission between remote control terminal network and enterprise information network, through the form of ActiveX controls realize the real-time data display in remote monitoring terminal which the field monitoring equipment collect; second
11、ly, according with the industrial remote monitoring project structure of three layer model, the paper has detailedly analyzed each layer, and designed the Winsock communication, database, client of the remote monitoring; thirdly, with the requirement for database security of the remote monitoring sy
12、stem, analyzing the current impact of data transmission security factors that put forward the VPN based on IPSec to ensuring the monitoring data in the public transport network, which to improving the security of remote monitoring system; and with the current single Web server load balancing problem
13、 for the remote monitoring system, proposing the Web server clusters method of load balancing, through the improvement of the traditional load balancing algorithm, it was better to solution the problem of server-side load balancing; finally, it has achieved some functions of the commercial concrete
14、remote monitoring and information platform. The control system used Visual Basic 6.0 to developing the interactive ActiveX control and 杭州电子科技大学硕士学位论文 III adopted JSP to developing Web server pages. The remote monitoring and information platform based on Web improved the real-time for traditional mon
15、itoring system, meanwhile improved the the transmission security of the monitoring data in the public network and the server overload issues. Through research and design the commercial concrete remote monitoring and information platform based on Web, one hand discussion of some key problem during th
16、e process of realizing the system; on the other hand, the development of remote monitoring system has a certain reference and help for other similar system. Keywords:remote monitor, Web, Socket technology, ActiveX, VPN, load balancing 杭州电子科技大学杭州电子科技大学 学位论文原创性声明和使用授权说明学位论文原创性声明和使用授权说明 原创性声明原创性声明 本人郑重声明： 所呈交的学位论文，是本人在导师的指导下，独立进行研究工作所取得 的成果。除文中已经注明引用的内容外，本论文不含任何其他个人或集体已经发表或撰写过 的作品或成果。对本文的研究做出重要贡献的个人和集体，均已在文
