KR20040005371A - Virtual Education System using of JMF - Google Patents

Abstract

PURPOSE: A virtual education system using the JMF(Java Media Framework) is provided to generate various formats of moving image file by transmitting an image and a voice, and supporting a data format conversion function between multimedia data, and to offer an environment making learners actively join in learning through a learning situation realized in an actual learning field. CONSTITUTION: The system comprises a learner PC(100), a teacher PC(200), a web server(300), and a data storage(400) storing various kinds of lecture information offered to the learner and a teacher. The learner PC comprises a lecture data output tool(110). The teacher PC comprises a lecture data transmitting tool(210). The web server comprises a login certification process(310), a lecture application data management(320), a lecture opening data management(330), a real-time lecture(340), a past lecture(350), and a lecture data conversion program(360) converting the source lecture data into a Powerpoint or a Hangeul file. The data storage comprises a teacher database(420), a learner database(410), a lecture note database(430), and a moving image database(450).

Description

Virtual Education System using JMF}

Existing virtual education systems are mostly web-based education systems made of HTML. Therefore, the education system adopts a simple method of providing contents to the general learners by relying on the images. In addition, the existing distance education solution has the trouble of installing a separate learner viewer to listen to the lecture. Considering these points, it can be seen that the existing virtual education system does not efficiently provide educational multimedia materials to learners. Internet educational broadcasts deliver all the explanations, such as syllabus, to the user depending on the image only. This type of approach takes the form of one-sided delivery to learners, so it does not provide an environment in which learners can actively engage in learning in a situation that is far from learning in a real workbook. Therefore, the present invention has developed a real-time virtual education system that provides a learning environment similar to the reality.

In the present invention, the contents prepared by using a Hangul file created by using a PowerPoint document, a presentation tool, and a Hangul word processor having a wide user base. It consists of an electronic blackboard that browses the web, a dialog window for learners to ask the educator, and an academic management module for checking the progress of the learners. It can provide the same educational effect as above.

JMF (Java Media Framework) can transmit video and audio as a function of acquiring data for multimedia data (video, audio), and can generate various types of video files by supporting data format conversion function between multimedia data. Lastly, because it can run on different operating systems based on Java, it provides the environment for learners to actively learn by the learning situation in the real workbook.

Web-board system structure using JMF is largely divided into web server and database server. Students can select past lectures and real-time lectures through the browser. It can be loaded as it is and replaced with lecture data, and can be linked in real time.

1 is a schematic flowchart of an internet lecture system implementing the present invention.

2 is a system configuration diagram for explaining the Internet lecture system

3 is a display window according to the course registration course

4 is a block diagram of a lecture window

5 is a block diagram of an electronic blackboard

6 is a block diagram of questions and answers

7 is a block diagram of a lecturer's real-time lecture

8 is a block diagram of a student's real-time attendance

9 is a block diagram of a student listening to the last lecture

10 is a flow chart of a student's course registration system

11 is a flowchart of the lecturer's lecture system.

100: learner PC352: video

110: learner lecture data output means 353: video management means

200: educator PC354: course management means

210: educator lecture data transmission means 355: synchronous control means

300: Web server 360: lecture data conversion program

310: login and authentication 361: raw lecture material

320: Course registration data management 362: Course data change

330: Lecture Open Data Management 400: Data Storage

340: real-time lecture 410: educator DB

341: copyboard 420: learner DB

342: Video 430: Lecture DB

343: Q & A 440: Course registration DB

350: Past Lecture 450: Video DB

351: Copyboard

3-1: View lecture materials

3-2: Answer confirmation window

3-3: Movie

3-4: Copyboard Control

3-5: Query Input Window

The lecture contents can be saved and re-viewed in real time, and the necessary file transfer and interactive video / audio are provided during the lecture. In particular, it supports general blackboard presentation tools such as PowerPoint and Korean word processor files, and supports the learner's attendance management and enrollment, and the bachelor's management module to change and delete enrollment. Manage information about

In the present invention, the system is largely an image blackboard explaining the educational contents provided by the educator to the learners, the electronic blackboard, the learner to browse the contents created using the presentation tool PowerPoint and Hangul word processor Consists of dialogs for questions and answers among educators, and enables learners not only to efficiently proceed with the training process but also to provide educational effects such as offline.

Claims (8)

The system consists of a learner PC (100), an educator (PC) 200, a web server 300, and a data storage 400 storing various lecture information provided to learners and educators. In the Internet lecture system for remote lecture on the network, the learner PC 100 is composed of lecture data output means 110, the educator PC 200 is lecture data transmission means 210, the web server 300 is Log-in and authentication process (310), course registration data management (320), course opening data management (330) real-time lectures (340), past lectures (350), raw lecture data conversion to convert the PowerPoint or Hangul files It is composed of a program 360, the data storage 400 is composed of an educator DB (420), learner DB (410), lecture book DB (430), course registration DB (440), video DB (450). The Internet lecture system according to claim 1, comprising lecture data output means (110) and lecture data transmission means (210) in an operator's web server (300). The program according to claim 1 or 2, wherein the lecture data transmission means (210) outputs the moving picture data in the player of the learner PC (100), and outputs the lecture log data in synchronization with the moving picture in the text player. The program according to claim 1 or 2, wherein the lecture data output means (110) outputs the moving picture data in the player of the learner PC (100) and outputs the lecture log data in synchronization with the moving picture in the text player. The management program of claim 1, wherein the video managing means 353 and the lecture book managing means 354 store or delete the lecture video and the lecture book data of the video DB 450 and the lecture book DB 430 of the data storage 400. to be. Synchronization control means (355) is a means for synchronizing the video data extracted from the video management means (353) and the lecture book management means (354) and the lecture book data on the web to display the progress time of the video data. The method of claim 1, wherein the video DB 450 is a video stored by the educator as a video and stored in a file of 4Mb units, the lecture book DB 430 is stored in a text file, the video file and lecture notes The file is saved as a set of lessons. The lecture window displayed by the lecture data output means 110 is a lecture control unit 3-4, a chalkboard screen unit 3-1, and a query confirmation window 3-2. , A query input unit 3-5 and a JMF video display unit 3-3. The method of claim 1, further comprising: databaseizing the file containing the lecture content as the video information in the data storage 400 and database-saving the file containing the text of the lecture in the data storage 400. Learner accesses the web server 300 by downloading the data output program by accessing the web server 300 and installing the data output program on the user's terminal and by the data output program included in the learner PC 100. The process of selecting a lecture by the data output program and the web server 300 transmits the requested lecture to the user system in real time through the above process, and the learner PC 100 provides video information corresponding to the requested lecture. And lecture log information to be displayed on the user terminal at the same time in the lecture window which is an output window by the data output program Internet lecture system comprising the steps.