网络监控与计费系统设计

本系统完全采用C#语言进行编写,采用了基于Web方式的C/S三层结构,主要实现以下功能:对局域网内电脑进行数据包截取;分析处理采集到的数据,得到用户上网历史记录;管理数据库信息;提供对历史数据的Web查询功能。本文先对“网络监控与计费系统”这一课题的来源和研究意义进行了分析,将国内外先进技术与本系统相比较,为课题的实施提供了理论依据,以上内容主要在第一二三章实现。在第四章中,根据实际需求情况和各高校的计费方式,设计出本系统需求的子系统和主要系统模快。第五章的编码技术与测试上,主要分析了服务器到客户端的通信和网络数据采集两个子系统。对网络数据采集子系统的三部分:按时间计费模块、按流量计费模块、电脑连接测试模块和服务器到客户端通信子系统的网络登陆模块部分进行了算法与代码分析,同时编写了一系列测试数据对模块进行测试分析,从而使读者更加清楚地认识到本系统的关键技术。最后在第六章中,总结了设计中获得的经验教训与程序中存在的问题。总之,本文是对系统的有益补充,更加方便了系统使用者对本系统的了解与实施。

This system (NMCS) is compiled by C# based on the Web C/S structure. The application realizes: intercepting the IP packet of network with the Simple Sniffer, obtaining and processing the data, getting the headling data of the users; providing the query application. The system is a part of network managing system (NMS), so administrator supervises network client more convenient. It can provide theoretical basis, by comparing home and abroad developing technology with the system, the contents mentioned above can be found between Chapter One, Two and Three. In Chapter Four, the subsystem and module of system are designed according to the actual demand and time pulse metering of other university. In Chapter Five, the technology of 'coding and testing', two subsystems of communication are analyzed between Server and client, network headline data collection. The network headline data collection includes three parts: time charging, module flow, charging module and computer connection testing module. The communication subsystem includes network login module,the use of some data , and more technology can be found out in-this chapter in this chapter. In Charter Six, the author summarizes the experience, the lesson in design, and the problems of the system. In a word, the paper is a better supplement to the system that is more convenient for users to understand and use.