KR20010105110A - Remote education system - Google Patents

Abstract

In order to improve the conventional remote device having low learning efficiency and user convenience, the present invention introduces elements that enhance the learning effect in traditional lectures, such as facial expressions, voices, gestures, and writings, by two-way communication, and transmits and receives them. The invention is configured to automatically convert lecture data in various formats into standard data, thereby improving learning efficiency and user convenience. The system of the present invention includes at least one instructor terminal and learner terminal connected to a server through a network, wherein the instructor terminal and the learner terminal each have means for generating a synchronization signal and at least one of video, audio and text data. Means for inputting and sensing lecture data comprising: a format conversion and transmission means for converting the lecture data into a standard data format of the network based on the synchronization signal and transmitting the lecture data to the server; and lecture data of the standard data format. And receiving and format converting means for receiving from the server and converting the original video, audio, and text data, respectively, based on the synchronization signal.

Description

Remote lecture system {REMOTE EDUCATION SYSTEM}

The present invention relates to a remote lecture system, and more particularly, to a remote lecture system that allows a multimedia lecture to be performed in real time between a lecturer and a student.

As is known, the learning process traditionally done by individual learning or collective education (hereinafter referred to as 'traditional lecture') is supplemented or completely complemented by remote lectures due to the expansion of personal computers and the development of network technology. The trend is being replaced. In particular, such remote lectures tend to be accelerated in their development and use due to advantages free from space and time constraints.

In the case of the conventionally proposed remote lecture (hereinafter, referred to as 'traditional remote lecture'), the instructor uploads a textbook written in text on the server, and the authenticated learner connects to the server. It was configured to download and download to a printed output or a computer monitor.

However, the conventional remote lecture has a problem that it is difficult to obtain the learning effect through the advantages obtained from the traditional lecture, for example, facial expressions, voice, gestures and writing.

Given that the main purpose of lectures is learning, this problem, despite the advantages of remote lectures in terms of temporal / spatial freedom, is a major limitation in replacing traditional lectures with remote lectures.

On the other hand, in recent years, voice lectures recorded by lecturers have been introduced to try to improve such problems, but this is also a one-way lecture, which is remarkably different from the effect that can be obtained from traditional lectures. For example, if there is a part of the content that is not understood, the lecture proceeds unilaterally even though it is difficult to understand what is going on. In this case, the effects on the learning progressed thereafter are difficult to expect. In addition, even if a user uploads a question to an e-mail or a bulletin board and obtains a response from an instructor, the learning time is not expected to be very long due to the long time required.

On the other hand, in the conventional remote lecture, textbooks or teaching materials are prepared in various files such as Korean format (.hwp) or MS office format (.txt) as below, and video and audio file formats such as MPEG, AVI, MP3, WAVE, RM As it is used in various ways, in order to take the instructor's data smoothly on the part of the instructor, the video, audio, or text is supported only after downloading the corresponding lecture data and running a support program corresponding to the downloaded data format. I can receive it. Although some formats are commonly supported by many programs, they are between single media (eg, voice, text), are not integrated into multiple formats, and the formats supported are limited, so students can complete the entire course. There was a problem that was difficult to take. In addition, the problem is further exacerbated in the case of instructors or students who are inexperienced in using a computer.

The present invention has been made to solve the above-mentioned problems, and introduced the elements that enhance the learning effect in traditional lectures, such as facial expressions, voices, gestures and writing, and the lecture data of various formats that are transmitted and received are standard data formats. The purpose is to provide a remote lecture system that automatically converts the data into the system.

In order to achieve the above object, in the present invention, in the system for remotely lecturing through one or more instructor terminal and the student terminal connected to the server through a network, the instructor terminal and the student terminal, respectively, means for generating a synchronization signal Means for inputting lecture data comprising at least one of video, audio, and text data; and format conversion and transmission for converting the lecture data into a standard data format of the network based on the synchronization signal and transmitting the lecture data to the server. Means and receiving and format restoring means for receiving lecture data in the standard data format from the server and restoring the original video, audio, and text data, respectively, based on the synchronization signal.

1 is a block diagram showing a remote lecture system according to an embodiment of the present invention,

FIG. 2 is a block diagram illustrating details of a lecture (or student) terminal configuration illustrated in FIG. 1;

3 is a block diagram of a remote lecture system according to another embodiment of the present invention;

4 is a flowchart illustrating an example of a remote lecture process performed in a remote lecture system according to the present invention;

FIG. 5 is a flowchart illustrating an example of detailed processes performed in the lecture step S 400 of FIG. 4.

Explanation of symbols for the main parts of the drawings

100: lecture server 110: storage unit

200: lecturer terminal 210, 310: synchronization signal generator

220, 320: format conversion and transmission unit 230, 330: reception and format restoration unit

240: data input and detection unit 250: output unit

Hereinafter, with reference to the accompanying Figures 1 to 4, a representative embodiment of a remote lecture system according to the present invention will be described in detail.

Example 1

This embodiment is related to FIGS. 1 and 2, and FIG. 1 is a block diagram showing a remote lecture system according to an embodiment of the present invention, and FIG. 2 is a lecture (or student) terminal configuration shown in FIG. 1. It is a block diagram showing in detail.

First, referring to FIG. 1, the remote lecture system of the present invention includes a lecture server 100, a lecturer terminal 200, student terminals 300/1, 300/2,..., 300 / n, and a network 400. It consists of, its individual configuration and function is as follows.

In this embodiment, the lecture server 100, the instructor terminal 200, the student terminal (300/1, 300/2, ..., 300 / n) may be composed of a computer or a dedicated terminal device, the network 400 May be configured as a LAN or the Internet.

The server 100 includes a storage unit 110 that stores programs and various data for operating a remote lecture system, and registers and authenticates students, and controls access between the terminal and the lecture terminal 200 of the authenticated students. Do this.

In this embodiment, the instructor terminal 200 and the student terminals 300/1, 300/2, ..., 300 / n have the same configuration, and the configuration is shown in FIG.

2, the instructor terminal 200 and the student terminal (300/1, 300/2, ..., 300 / n) is a synchronization signal generator 210, a format conversion and transmission unit 220, receiving and It includes a format recovery unit 230, a data input and detection unit 240 and the output unit 250. In this case, the format conversion and transmission unit 220 and the reception and format recovery unit 230 may be configured as an integrated device, or may be configured as a format conversion device and a data transmission and reception device that operate in association with each other.

The synchronization signal generator 210 generates a synchronization signal for synchronizing video, audio, and text data generated by the data input and detection unit 240 to be described later. In the present invention, in order to enhance the sense of realism and enhance the learning effect, one of the text data that can be provided as video data, such as facial expressions, gestures, written content of the lecturer, audio data about the lecture contents of the lecturer, reference materials and teaching materials It is comprised so that the above may be included, It is preferable that at least image data and audio data are included. At this time, a synchronization signal is used to match such expressions, gestures, written content, etc. with the instructor's voice and written content.

The format conversion and transmission unit 220 multiplexes the video, audio and text data generated by the data input and detection unit 240 to be described later, for example, the synchronization signal generated by the synchronization signal generator 210 described above. After converting to a standard data format used in the network, for example, a web language such as HTML, it is provided to the lecture server 100 through the network 400 in accordance with a conventional transmission method.

Meanwhile, the reception and format restoration unit 230 reversely performs the above-described operation of the format conversion and transmission unit 220 on the lecture data received from the lecture server 100 through the network 400, thereby reconstructing the original image, Restore to voice and text data. In other words, the received lecture data are demultiplexed and separated into synchronization signals, video, audio, and text data, and the separated video, audio, and text data are decoded into original video, audio, and text data through demodulation, error correction, and decoding. After the restoration, the restored signal is provided to the corresponding output unit 250 based on the synchronization signal.

In this manner, all input data is automatically converted by the format conversion and transmission unit 220 and the reception and format restoration unit 230 to the lecture server 100, and the data received from the lecture server 100 is Since it is automatically converted to video, audio, and text, and then output to the output unit 250, even those who are not skilled in the computer can easily use the remote lecture system.

The data input and detection unit 240 captures an image and converts the image data into image data, a microphone that detects and converts the voice into voice data, a keyboard, a mouse or a digitizer for inputting characters and symbols, and the like (not shown). It is composed of

The output unit 250 includes a monitor for displaying text, symbols, and images, a speaker for outputting audio, and the like.

On the other hand, since there are typically one instructor but a large number of students, it may be desirable to add a multi-screen realization apparatus capable of displaying a plurality of students on one or more screens. In addition, when receiving a query message or a response request message among a plurality of students displayed on the multi-screen, selection means configured to display only the image received for the learner on one full screen may be further added.

Example 2

Referring to FIG. 3 in comparison with FIGS. 1 and 2, the remote lecture system according to the present embodiment includes the instructor terminal 200 and the student terminals 300 / 1,300 / 2, .. The format conversion and transmission unit 220 and the reception and format restoration unit 230 provided at 300 / n are mounted on the lecture server 100.

In the first embodiment, since the format conversion and transmission unit 220 and the reception and format restoration unit 230 are provided in individual terminals, each terminal may be individually provided with services from other servers to which the present invention is applied. On the other hand, in the present embodiment, since the lecture server 100 supports automatic format conversion, there is a difference in that a remote lecture system according to the present invention can be configured without having to install a separate device or program for each terminal.

That is, the lecture data provided by the lecture terminal 200 or the student terminal 300 / 1,300 / 2, ..., 300 / n based on the synchronization signal is configured to be automatically converted by the lecture server 100. have. Those skilled in the art will be able to easily understand the configuration of the present embodiment by referring to the description of the above-described Embodiment 1, and thus detailed description thereof will be omitted.

However, in the first embodiment, the normal data compression process and the decompression process performed before data transmission and reception are performed by the format conversion transmitter 220, the reception and format restoration unit 230, but in the present embodiment, the format conversion and transmission unit ( 320, the receiving and format recovery unit 330 is mounted on the lecture server 100, such data compression and decompression process will be performed by a data processing device typically provided in the individual terminal.

Hereinafter, with reference to FIGS. 4 and 5, an example of a process in which a remote lecture is performed in the present system will be described in order to facilitate understanding of the remote lecture system according to the present invention.

4 is a flowchart illustrating a process in which a remote lecture is performed in the remote lecture system according to the present invention, and FIG. 5 is a flowchart illustrating an example of a detailed process performed in the lecture step S 400 illustrated in FIG. 4.

In order for this remote lecture to be carried out in real time, appointments for the lecture time between the instructor and the students must be set, and in the case of a paid fee, the course registration must be made through the course registration and payment. Of course, you can participate while the course is in progress, and offline lectures are also possible through synchronization of the course site and the student's terminal.

Referring to FIG. 4, when a specific surfer first connects to a lecture server 100 providing a corresponding lecture site through the network 400 (S 100), the lecture server 100 registers from an internal storage unit 110. It is determined whether or not the surfer (hereinafter referred to as a student) has become (S200).

If it is determined in step S 200 that the learner, the lecture server 100 connects the instructor terminal 200 providing the lecture registered by the learner and the student's terminal 300 of the student (S 300). At this time, if it is determined that the student is not a student in step S 200, the lecture server 100 may send a separate guide message to the terminal of the surfer may check whether or not to register.

In the state where the instructor terminal 200 and the student terminal 300 are connected as in step S 300, the lecture proceeds, and the contents of the lecture are stored in the student terminal 300 (S 400). That is, the video and writing contents of the instructor are displayed on the monitor (not shown) added to the student terminal 300 by data transmission and reception and data processing between the instructor terminal 200 and the student terminal 300, and the voice lecture The content is output to a speaker (not shown), and the data is stored in a storage unit (for example, a hard disk) added to the student terminal 300. In addition, moving images of a plurality of learners are displayed on the instructor terminal 300 on a multi-screen or a plurality of pages, and the questions of the learners are selectively displayed / outputted on the instructor terminal 300. The process will be described in more detail with reference to FIG. 5.

First, when the instructor terminal 200 and the student terminal 300 is connected in step S 300, lecture data such as video, voice, text, etc. of the instructor is detected by the input and detection unit 240 of the instructor terminal 200. And after input, it is processed as lecture data (for example, video data compressed in MPEG2, audio data compressed in MP3, hwp data, etc.) in an individual media format (S410). The individual lecture data is converted by the format conversion and transmission unit 220 into a standard data format in response to a synchronization signal, and then transmitted through the network 400. In this case, the synchronization signal is provided by the synchronization signal generator 210 and is generated from the synchronization signal generator 210 to synchronize the video, voice, and text data (S420). The lecture data transmitted as described above is received by the receiving and format restoring unit 230 of each of the plurality of students connected to the instructor terminal 200 through the network 400, and then demultiplexed and restored to the original individual signal. To the output means 250. That is, the video, text, and voice data are separated and provided to the display device and the voice output device (S430). The output unit 250 processes the individual data received from the reception and format restoration unit 230 to display or output the respective data. At this time, each data is displayed or output based on the synchronization signal (S440).

If the instructor manipulates the input means 240 included in his terminal 200 while viewing the question display of a specific student among the students displayed on the multi-screen during step S 440 (S 450). The selecting means (not shown) added to the instructor terminal 200 selectively outputs only a signal provided from the corresponding student terminal 300/1 among the plurality of students' lecture data provided by the receiving and format restoring unit 230. Provided to the means 250 (S 460). Note that the data transmitted from the instructor terminal 200 should be continuously provided to the other student terminals 300/2 to 300 / n at this stage.

In the above-described step S460, when the question and answer is completed and the instructor manipulates the input means 240 provided in his terminal 200 to release the selection for a particular student (S470), the instructor terminal 200 The added selection means (not shown) returns the signal provided from the entire students 300/1 to 300/2 to the output means 250, and returns to step S440.

4 again, when the lecture ends during the above-described step S400, the instructor operates the input unit 240 of the instructor terminal 200 to transmit a connection termination message to the lecture server 100 (S). 500, the lecture server 100 terminates the connection between the lecture server 100 and all students 300/1 to 300/2 connected to the lecture server 100 (S 600).

According to the present invention described above, it is expected that the learning effect made in the remote lecture can be greatly improved while improving the user convenience of receiving the distance education through the Internet.

Claims (4)

In the system to remotely lecture through one or more instructor terminal and student terminal connected to the server through the network, The instructor terminal and the student terminal, respectively, Means for generating a synchronization signal, Means for inputting and sensing lecture data comprising at least one of video, audio and text data; Format conversion and transmission means for converting the lecture data into a standard data format of the network based on the synchronization signal and transmitting the converted lecture data to the server; Receiving and format converting means for receiving lecture data of the standard data format from the server and converting the lecture data into original video, audio, and text data based on the synchronization signal, respectively; Remote lecture system comprising a. The method of claim 1, The format conversion and transmission means and the reception and format conversion means, Remote lecture system, characterized in that mounted on the server in place of the lecture terminal and the student terminal. The method according to claim 1 or 2, The server, The remote lecture system further comprises a storage for storing the lecture data. The method according to claim 1 or 2, In the instructor terminal of the remote lecture system, And a selecting means for receiving only data provided from any one of the plurality of student terminals based on an operation signal generated by the sensing and input means in response to a key input of the instructor.