video education network 中文意思是什麼
video education network
解釋
電視教育網-
At present, the remote education is developed vigorously in overseas especially in the usa, demonstrated by the new report of idc, it ' s accepted by the american colleges rapidly, the american institution nearly 90 percent will provide " on _ line learning " chances, the contemporaneity distance education network platform is formed roughly, which based on the cernet and satellite video system builded in 1994
目前，遠程教育在國外特別是在美國得到了蓬勃發展。據美國國際數據公司（ idc ）的一份最新調查報告，遠程教育迅速為美國大專院校所接受，到2005年，近90的美國高等教育機構將提供「在線學習」的機會； 1994年開始建設的以中國教育科研網（ cernet ）和衛星視頻系統為基礎的現代遠程教育網路平臺已初步形成。 -
Stream media interaction education video dibble 、 video teaching 、 network television, analyzing stream media will become more and more focused. network stream media technology will serve distance education and lifelong study well
通過對流媒體技術的遠程教育應用視頻點播、視頻教學、網路電視的研究，分析流媒體將會被遠程教學越來越關注。 -
The system is developed by ourselves on the basis of the project which is titled. multimedia broad bandwidth network engineering and been responsible by the author of this thesis. the hfc network transmission based techniques of internet dual access, user set - top - box access, stock broadcasting, standard video broadcasting, distant education, etc. are addressed. this system can provide information highway to telecommunication and tv broadcasting to run multimedia services and be suitable for the status of our nation and the economic burden of our public
本論文以作者負責的項目「山東勝利油田多媒體寬帶網路工程」為背景，闡述了本單位自主開發的「基於hfc網路多媒體寬帶傳輸系統」的原理、功能和技術特點，論述了基於hfc傳輸網路下的： internet雙向接入技術和用戶端機頂盒接入技術及股票發送、準視頻廣播、遠程教育等高速數據廣播技術在hfc網路工程中的實現，說明了該系統能夠為電信和廣電全面開展多媒體增值業務提供一套適合我國國情、滿足我國公眾經濟承受能力的信息高速公路完整解決方案。 -
Education : video conference system can help college, academy and education organizations to realize large scale on - line courses and trainings to satisfy the learning request from different locations and student levels. with a simple network camera and internet connection, courses can be held at any time and any place
當前高校教學改革的主要目標之一是構建一種既能發揮教師主導作用，又能充分體現學生認知主體作用的新型教學模式，鼎視通視訊系統就成了中國高校的首選載體。 -
The video system to be made available shortly by unicom is based on unicom s unified data network platform. it represents another new service following voip, internet service and fr service made available by unicom. its purpose is to provide users with economical and useful video conference service that is easy to access and easy to use as well as desk - top video telephone service and such multimedia application as distance education and remote medical consultation
中國聯通即將推出的視頻系統是基於聯通統一的數據網路平臺，是繼voip業務、網際網路業務和幀中繼業務之後聯通的又一新業務，目的是為用戶提供方便接入、方便使用、經濟實用的會議電話業務和桌面可視電話業務以及遠程教育、遠程醫療等多媒體應用。 -
Application engineering development will build all kinds of application system, like digital library, modern distance education system ( network education system ), resources databases, oa ( office automation ) and vod ( video on demand ) system etc. if it is spread and used, it will improve the efficiency of the management, and extend the school running ability
應用工程建設是校內各種應用系統的建設，包括數字圖書館、現代遠程教育系統、資源庫建設、辦公自動化、視頻點播系統等，它的推廣使用將大大提高校內管理效率，擴大辦學能力。管理工程建設的原則是以人為本，關鍵項目有信息化意識建設、安全管理和管理創新等。 -
Based on its strong technology and economy foundation, the mastery of core technology in safe guard engineering, network communication and digital video, the company successfully implemented many projects in many social fields, such as in government, water conservancy department, commercial, education, large scale enterprise and police with the gaining of great social efficiency, which the projects include multilevel remote monitoring system, public security guard system, closed - circuit television, large - scale network communication, network education, multimedia network alternate education platform, multimedia conference system, multimedia video ordering system, digital video recording, and video broadcasting application
憑借強大的技術和經濟實力以及公司在安防監控工程、網路通訊和數字視頻技術領域所掌握的核心技術，本公司先後成功的實施了多級遠程監控系統、治安監控系統、閉路電視監控系統、大型網路傳輸工程、網路教學系統、多媒體網路交互教學平臺、多媒體會議系統、多媒體視頻點播系統、數字錄像、視頻廣播等工程已在政府、水利、金融、教育、大型企業、公安等多個行業中被廣泛應用，並取得了良好的社會效益。 -
Network education teaching on internet divides into synchronous and asynchronous teaching two classes. the synchronous teaching transfers the multimedia classroom ’ s scene and teacher ’ s media in teaching with ddn / adsl / atm and sky satellite to distance classroom at real - time by internet audio and video technology so that the teacher questions their students and their students ask the question as well or the students consult their teacher, which realizes the similar teaching at a classroom. the courseware on demand ( cod ) is a important study method in asynchronous teaching, that the courseware was stored in the computer server, the student demand the courseware according to their plan to self - study, accompanying that the teachers answer the students ’ question on internet, bbs at the same time, which complete the asynchronous teaching
利用internet實現網路教學可以分為同步式和異步式兩種:同步式教學主要應用internet的網路音視頻技術，通過地網（ ddn / adsl / atm ）或天網（衛星）將多媒體教室中教師授課內容和授課情景實時轉播到遠端多媒體聽課教室，學生可在遠端即時回答老師的提問或向老師提問，實現了與真實課堂類似的實時互動式教學;異步教學的重要學習方式是課件點播（ coursewareondemand ） ，即將多媒體課件放在服務器上，學生依據個人學習進度通過網路點播所需課件進行自主學習，同時與教師在網上輔導答疑、網上討論等環節相結合，完成網路教學的異步教學過程。 -
The dynamic bit rate allocation module receives relevant data from the loss rate of multi - media data packet, jitter, delay, and compares these data with predefined values to make one of these 3 decisions that : decrease the video bit rate ( stat = decrease ), or maintain current video bit rate ( stat = hold ), or increase video bit rate ( stat = inccease ). the video bit rate will be adjusted according to the decision and the total bit rate is changed accordingly. in this way the impact of network environmental variation is settled, and consequently the adaptability of videoconference systems in remote education area is improved
整個模型從rtcp協議獲得多媒體數據包丟失率（ lossrate ） 、抖動（ jitter ） 、延時（ delay ）的相關數據，這些數據與預先設定好的閥值作比較，得出減小視頻位速率（ stat = dectease ） 、維持視頻位速率不變（ stat = hold ）或增大視頻位速率（ stat = increase ）的決定，模塊根據這些決定對視頻位速率進行相應的調整，從而總的位速率也相應變化，這樣可以減小由於網路環境變化而帶來的影響，從而提高視頻會議在遠程教育應用中的實用性。 -
Multicast is viewed as a means of data transportation to support the communication of multiple parties, so it is widely adopted in many network applications of modern distance education, for example the transportation of teaching video stream, the electronic whiteboard and the virtual lab on network etc. unlike security of unicast, there are not enough attention and research which are paid to the security problems of multicast
因此多播在現代遠程教育中得到了廣泛的應用，如教師授課的視頻直播、師生網上的交互討論以及基於網路的協同虛擬實驗等現代遠程教育應用系統中都可採用多播的數據傳輸方式。不像單播的網路安全問題得到了廣泛的注意和研究，多播的安全問題一直沒有引起應有的重視。 -
As one of the indispensable media of internet, streaming media is widely used in internet multimedia press issue, on - line living broadcast, network advertisement, electronic commence, video order program, long distance education, long distance medical treatment, network broadcasting station, real time video reference etc. compression code algorithm is one of the very important technology
流媒體作為因特網不可或缺的媒體之一，已廣泛應用於網際網路多媒體新聞發布、在線直播、網路廣告、電子商務、視頻點播、遠程教育、遠程醫療、網路電臺、實時視頻會議等網際網路的信息服務的方方面面。在寬帶還沒有普及的今天，壓縮編碼演算法是流媒體技術中非常重要的技術之一。 -
Based on the research of videoconference systems of h. 323 protocol over ip networks and the author ' s experiences of implementing h. 323 videoconference systems in remote education area, in this thesis the main factors that affect videoconference quality are analyzed, and a dynamic bit rate allocation model is proposed and partly implemented. this model is designed to dynamically allocate bit rate for multi - media data flow ( including audio data and video data ) in fixed bandwidth network environment. when continuous multi - media packet losses are detected in ip based h. 323 videoconference system, the bit rate of video data is adjusted meanwhile the bit rate of audio data remains unchanged, and the bit rate allocation of multi - media data ( including audio data and video data ) is optimized as a whole effect
本文結合作者在h . 323視頻會議系統應用於遠程教育的經驗，通過對現有的基於ip網路的h . 323協議視頻會議系統的研究，分析了影響視頻會議質量的原因，提出並部分實現了在固定帶寬的網路環境下，基於ip的h . 323視頻會議的多媒體數據包發生丟包、抖動或延時時，保持音頻數據位速率不變，通過對視頻數據的位速率的進行調整，最終實現旨在提高視頻會議語音質量的多媒體數據位速率動態調整的模型。 -
The company ' s main business areas : computer maintenance / network engineering / education / web design / mtv production / video editing / advertising / e / design animation production - - welcome
公司主營業務：電腦維護/網路工程/教育培訓/網頁設計/ mtv製作/影視編輯/廣告設計/室設計/動畫製作等- - -歡迎光臨！ -
The net go toes the teaching to have already become a main current direction that develop of education ; the teaching on the network have broken restricts in time and areas, share profits to use the resources advantage of the school, and is a kind of exploitation network to proceed teaching of gathering voice images video data in the hand overing of integral whole with each other remote education courseware ; user can view the multi - media teaching by interview the hypertext pages ; is a kind of method of sharing the information means, conveniently and quickly
基於internet的現代遠程教育通過構建一個開放性的教育環境，克服了傳統教育在時間、空間上的限制，對于有效地發揮現有各種教育的資源優勢，實現資源的合理配置，發展教育事業起著非常重要的作用。網上教學已成為教育發展的一個主流方向，充分利用學校的資源優勢。網路課件是一種利用網路進行教學的集語音圖像視頻數據於一體的交互遠程課件；可以使用戶通過訪問超文本頁面瀏覽多媒體教學；是一種方便迅速的共享信息手段。 -
Ist ( the integrated services terminal ) is a equipment based on a new kind of catv network, which makes users not only carry out these functions such as internet, dtv and ip telephone, but also enjoy the increment operation including ordering video programme, shopping at home, network game, long - distance education on only one net
綜合業務終端是基於新型有線電視接入網向家庭用戶提供綜合業務的設備，通過一個網路，它可以讓用戶不但實現網際網路接入、數字電視、 ip電話等功能，同時還可享受視頻點播、居家購物、網路游戲、遠程教育等豐富的增值業務。
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