未来教室中网络接入管理系统的设计与实现

发布时间：2018-02-01 05:41

本文关键词： 未来教室网络接入交换机 SSH协议 TCP连接　出处：《华中师范大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着互联网和各种新兴技术的蓬勃发展,未来教室的构建作为教育行业信息化的一个重要领域,逐渐引起国内外的广泛关注和讨论。目前,各种智能化的软硬件设施在教育领域的应用越来越广泛。本文讨论了未来教室中网络接入管理系统的设计与实现,旨在创建一个方便易用又安全可靠的网络接入管理系统。它采用了基于SSH安全协议的方案,以HTTP API为控制接口,JSON数据为数据传输形式,既保证了系统的安全性,又兼顾了易用性、可扩展性。本文首先分析了信息时代我国教育事业的发展状况,讨论了传统多媒体教室在教学中的困境。其次在广泛的听取了专家、学者对于未来教室的探索和构思的基础上,分析了未来教室的概念和特征以及未来教室中的网络环境。最后介绍了本文主要的研究工作和章节安排。其次,对几种常用网络协议进行了分析,并比较了它们的安全性。其中重点分析了SSH协议的体系结构、工作流程、安全性等问题。通过安全性的对比,确定了采用SSH协议建立的安全通道来完成数据的通信。最后,对系统进行了需求分析和详细设计,完成了系统的开发架构和功能模块划分。并对系统中所要使用的关键技术进行了分析,包括TCP连接、Libssh2函数库、JSON数据格式。随后,在第4章具体实现了系统的各个功能模块,包括登录功能、查看交换机状态、有线网络管理、无线网络管理、显示CPU及内存使用率信息和查看日志文件的功能。本文详细地叙述了未来教室中网络接入系统的设计与实现,特别是基于SSH协议的远程登录管理,对于提高未来教室中网络的安全性,和终端设备的远程集中管理有一定的指导意义。
[Abstract]:With the rapid development of the Internet and various new technologies, the construction of future classrooms, as an important field of education information, has gradually aroused widespread concern and discussion at home and abroad. Various intelligent hardware and software facilities are more and more widely used in the field of education. This paper discusses the design and implementation of the network access management system in the future classroom. In order to create a network access management system which is easy to use and safe and reliable, it adopts a scheme based on SSH security protocol and uses HTTP API as the control interface. JSON data is the form of data transmission, which not only ensures the security of the system, but also takes into account the ease of use and scalability. Firstly, this paper analyzes the development of education in the information age. The difficult position of traditional multimedia classroom in teaching is discussed. Secondly, on the basis of extensive listening to the exploration and conception of future classroom by experts and scholars. The concept and characteristics of the future classroom and the network environment in the future classroom are analyzed. Finally, the main research work and chapter arrangement are introduced. Secondly, several common network protocols are analyzed. And compare their security. Among them, we focus on the analysis of the SSH protocol architecture, workflow, security and other issues. Through the security comparison. SSH protocol is used to establish a secure channel to complete the data communication. Finally, the system requirements analysis and detailed design. The development framework and functional module partition of the system are completed, and the key technologies used in the system are analyzed, including TCP connection / Libssh2 function library / JSON data format. In chapter 4, we implement the modules of the system, including login function, check switch status, wired network management, wireless network management. This paper describes the design and implementation of the network access system in the future classroom, especially the remote login management based on SSH protocol. It has certain guiding significance for improving the security of network in future classroom and remote centralized management of terminal equipment.
【学位授予单位】：华中师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN915.07

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