基于云平臺(tái)的網(wǎng)絡(luò)虛擬實(shí)驗(yàn)課程系統(tǒng)
本文選題:云平臺(tái) + 云實(shí)驗(yàn); 參考:《電子科技大學(xué)》2017年碩士論文
【摘要】:本文從網(wǎng)絡(luò)教育的虛擬實(shí)驗(yàn)出發(fā),研究虛擬實(shí)驗(yàn)的發(fā)展,總結(jié)制約虛擬實(shí)驗(yàn)發(fā)展的問題和不足,提出虛擬實(shí)驗(yàn)與傳統(tǒng)實(shí)驗(yàn)相結(jié)合的新思路,將云平臺(tái)技術(shù)做為結(jié)合點(diǎn),讓網(wǎng)絡(luò)實(shí)驗(yàn)與本地實(shí)驗(yàn)的更好的聯(lián)接融合,吸取優(yōu)點(diǎn),改善不足,解決問題。本文的虛擬實(shí)驗(yàn)針對(duì)計(jì)算機(jī)課程實(shí)驗(yàn),使用B/S模式,開發(fā)web應(yīng)用,安裝配置云平臺(tái),提出解決實(shí)驗(yàn)機(jī)的遠(yuǎn)程可視化操作的方案。用戶通過瀏覽器登錄課程平臺(tái)學(xué)習(xí)課程,根據(jù)實(shí)驗(yàn)要求申請(qǐng)實(shí)驗(yàn)機(jī),使用瀏覽器操作實(shí)驗(yàn)機(jī)進(jìn)行實(shí)驗(yàn)。云平臺(tái)構(gòu)建了虛擬的實(shí)驗(yàn)中心,實(shí)驗(yàn)中心根據(jù)實(shí)驗(yàn)的需要在云平臺(tái)上創(chuàng)建虛擬機(jī),按照實(shí)驗(yàn)要求安裝實(shí)驗(yàn)環(huán)境并負(fù)責(zé)實(shí)驗(yàn)機(jī)的管理、維護(hù)。硬件基礎(chǔ)設(shè)施使用服務(wù)器和計(jì)算機(jī),利用vSphere虛擬化服務(wù)器和計(jì)算機(jī),使用vCenter管理ESXI主機(jī)和hadoop集群。web應(yīng)用程序使用SSH架構(gòu),用Java語言開發(fā),集成在線文本編輯器、圖片文件上傳、在線視頻播放等多種實(shí)用工具。本系統(tǒng)提供實(shí)驗(yàn)操作、實(shí)驗(yàn)說明書、評(píng)價(jià)、筆記、問答、評(píng)論、教學(xué)視頻七大核心功能。使用Spring的容器、Hibernate的接口。利用Action獲取數(shù)據(jù)通過ModelDriven顯示JSP主頁面,七大核心功能使用Ajax和Struts-JSON配合動(dòng)態(tài)刷新功能模塊。云平臺(tái)向服務(wù)器提供服務(wù),實(shí)現(xiàn)連接實(shí)現(xiàn)機(jī)、克隆實(shí)現(xiàn)機(jī)、啟動(dòng)實(shí)現(xiàn)等操作。云平臺(tái)通過瀏覽器將實(shí)現(xiàn)機(jī)展示給用戶進(jìn)行操作?梢暬瘬u控方案采用VMRC和VNC兩種方案。對(duì)比分析BFF和GREEDYBUCKET節(jié)能算法,針對(duì)本系統(tǒng)的虛擬機(jī)請(qǐng)求特點(diǎn),提出云平臺(tái)的節(jié)能策略。虛擬實(shí)驗(yàn)的實(shí)踐操作在網(wǎng)絡(luò)教育有非常重要的作用,豐富虛擬實(shí)驗(yàn)資源是網(wǎng)絡(luò)教育發(fā)展的關(guān)鍵一環(huán)。而傳統(tǒng)實(shí)驗(yàn)計(jì)算資源存在著巨大的浪費(fèi),提高資源的利用率和節(jié)能減排是急需解決的問題。為了提高計(jì)算資源利用率,將傳統(tǒng)計(jì)算機(jī)實(shí)驗(yàn)的真實(shí)的實(shí)驗(yàn)環(huán)境提供給網(wǎng)絡(luò)課程使用,設(shè)計(jì)開發(fā)基于云平臺(tái)的網(wǎng)絡(luò)虛擬實(shí)驗(yàn)課程系統(tǒng),即提高了資源的利用又豐富了網(wǎng)絡(luò)實(shí)踐。
[Abstract]:Starting from the virtual experiment of network education, this paper studies the development of virtual experiment, summarizes the problems and shortcomings that restrict the development of virtual experiment, and puts forward a new idea of combining virtual experiment with traditional experiment, and makes cloud platform technology as a combination point, so as to combine the network experiment with the local experiment more well, absorb the advantages, improve the shortage and solve the question. In this paper, the virtual experiment is aimed at the computer course experiment, using the B/S mode, developing the web application, installing and configuring the cloud platform, and putting forward the solution to the remote visual operation of the experiment machine. The platform builds a virtual experimental center. The experimental center creates a virtual machine on the cloud platform according to the needs of the experiment, installs the experimental environment according to the experimental requirements and is responsible for the management and maintenance of the experimental machine. The hardware infrastructure uses the server and computer, uses the vSphere Virtualization Server and the computer, and uses vCenter to manage the ESXI host and Hadoop Cluster.Web applications use SSH architecture, develop in Java language, integrate online text editor, picture file upload, online video playback and many other practical tools. This system provides experimental operations, experimental instructions, evaluation, notes, questions and answers, comments, teaching video and seven core functions. Use Spring container, Hibernate interface. Use Acti On gets data through ModelDriven to display JSP main page surface, seven core functions use Ajax and Struts-JSON to dynamically refresh functional modules. Cloud platform provides service to server, realizes connection realization machine, clone implementation machine, start implementation and so on. The cloud platform displays the reality machine to users through the browser. Visual control party Two schemes of VMRC and VNC are adopted in the case. The energy-saving algorithm of BFF and GREEDYBUCKET is compared and analyzed. In view of the request characteristics of the virtual machine, the energy-saving strategy of the cloud platform is put forward. The practical operation of virtual experiment plays a very important role in the network education. The rich virtual experiment resources are the key link of the development of network education. In order to improve the utilization rate of computing resources, the real experimental environment of traditional computer experiment is provided to network courses to improve the utilization rate of resources, and the network virtual reality system based on cloud platform is designed and developed, that is to improve the utilization of resources and enrich the resources. Network practice.
【學(xué)位授予單位】:電子科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:G434;TP393.09
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