摘 要: 結(jié)合網(wǎng)絡(luò)工程專業(yè)開設(shè)時(shí)間短、教學(xué)實(shí)驗(yàn)條件不完備、科研力量薄弱等特點(diǎn),在此根據(jù)網(wǎng)絡(luò)工程相關(guān)課程的實(shí)驗(yàn)教學(xué)需要,綜合NGB應(yīng)用環(huán)境下的多種技術(shù),設(shè)計(jì)出一套針對網(wǎng)絡(luò)工程專業(yè)相關(guān)課程和科研需要的實(shí)驗(yàn)網(wǎng)絡(luò)平臺。該平臺由前端業(yè)務(wù)系統(tǒng)、傳輸系統(tǒng)和接入網(wǎng)系統(tǒng)3部分組成,可開展寬帶網(wǎng)絡(luò)接入系統(tǒng),交互式數(shù)字電視系統(tǒng)和IPTV系統(tǒng)等方面的實(shí)驗(yàn)和科研工作。該系統(tǒng)的建立和完善,不僅有助于開展實(shí)驗(yàn)教學(xué)和科研項(xiàng)目的開發(fā)、測試等工作,還對下一步物聯(lián)網(wǎng)平臺的規(guī)劃設(shè)計(jì)具有一定的參考價(jià)值。
關(guān)鍵字: NGB; 接入網(wǎng); DVB; IPTV
中圖分類號: TN964?34 文獻(xiàn)標(biāo)識碼: A 文章編號: 1004?373X(2013)24?0032?03
Design of teaching and and scientific research network platform for network
engineering course
LU Quan?he1, FENG Li1, MIAO Fang2
(1. The 573 Station of State Press and Publication Administration of Radio, Film and Television, Beijing 102209, China;
2. College of Information Engineering, Communication University of China, Beijing 102218, China )
Abstract: In combination with characteristics of short creation time, incomplete teaching experimental conditions, and weak scientific research of network engineering course, according to the experimental teaching demands of network engineering course, a experimental network platform was designed to meet the curriculum and scientific research needs related to network engineering course by means of variety of techniques in NGB application environment. The platform consists of the front end section of business system, transmission system and access network system, can carry out experiment and research of broadband network access systems, interactive digital TV system and IPTV system. The establishment and improvement of the system are a great help to carry out the development of experimental teaching and scientific research projects, and have a certain reference value for the planning and design of the next generation IOT platform.
Keywords: NGB; access network; DVB; IPTV
0 引 言
寬帶網(wǎng)絡(luò)作為實(shí)現(xiàn)信息化的重要載體,是經(jīng)濟(jì)社會發(fā)展的關(guān)鍵基礎(chǔ)設(shè)施,也是提升國家競爭力的關(guān)鍵要素[1]。在三網(wǎng)融合、NGB、物聯(lián)網(wǎng)的研究和應(yīng)用迅速發(fā)展的背景下,信息工程學(xué)院新開設(shè)了網(wǎng)絡(luò)工程專業(yè)。目前其他專業(yè)課程同網(wǎng)絡(luò)專業(yè)課程一樣,一方面需要一個網(wǎng)絡(luò)平臺進(jìn)行教學(xué)、實(shí)驗(yàn);另一方面相關(guān)科研項(xiàng)目的研發(fā)、測試、演示的過程中也需要網(wǎng)絡(luò)環(huán)境的支持。
目前學(xué)院還沒有比較完備的科研、教學(xué)網(wǎng)絡(luò)平臺,只有一些分散的和使用多年的設(shè)備或系統(tǒng)。比如涉及接入網(wǎng)相關(guān)的課程,只有一套ADSL教學(xué)系統(tǒng)。當(dāng)涉及寬帶網(wǎng)絡(luò),數(shù)字有線電視系統(tǒng),廣電網(wǎng)雙向改造等教學(xué)實(shí)驗(yàn)時(shí),僅是去學(xué)校的計(jì)算機(jī)網(wǎng)絡(luò)中心進(jìn)行參觀,無法進(jìn)行更深入的實(shí)驗(yàn),這主要是因?yàn)榫W(wǎng)絡(luò)中心的系統(tǒng)和設(shè)備不能改動和調(diào)試。……