KR101717945B1 - Method for real-time sharing online contents based on websocket server and a computer-readable storage medium having program to perform the same - Google Patents

Abstract

There is provided an online lecture content management method based on event processing and a computer readable storage medium storing a program for performing the method. An on-line lecture content management method based on event processing according to an embodiment of the present invention includes the steps of recording lecture contents, storing event information generated in the lecture contents recording process, and storing the lecture contents .

Description

[0001] METHOD FOR REAL-TIME SHARING ON CONTENTS [0002] BASED ON WEBSOCKET SERVER AND COMPUTER READABLE STORAGE MEDIUM HAVING PROGRAM TO PERFORM THE SAME [0003]

The present invention relates to a web socket-based real-time content sharing method and a computer-readable storage medium storing a program for performing the method. More particularly, the present invention relates to a method and apparatus for sharing various events generated during a lecture session in real- How to do it.

Due to the recent development of communication technologies and popularization of the Internet, the education field is also being transferred to the Internet. In other words, lectures that were done offline were produced and distributed on-line, and students could take lectures from a remote location via the Internet using a computer or smart phone, even if they did not gather in offline places such as academies.

Since the online lecture was conventionally produced only as a voice file, recently lecture materials are being produced in the form of a video including mostly visual effects in order to induce students' immersion and interest. Accordingly, the lecturer needs to record the content of his lecture as a video and post it on a web server, and an online learner needs to download or stream the lecture material, that is, the lecture video, in order to listen to the lecture.

HTML5 is the next major proposal version of HTML and is the core markup language of the World Wide Web. Multimedia control elements such as audio, video, and canvas that were not available in previous versions can be used directly from the device from the device without the need for ActiveX or other plug-in installation. . In addition, since HTML5 enables real-time bidirectional communication using AJAX, Websocket can be used, which can reduce communication overhead and gain speed. Recently, a web browser supporting HTML5 supports various multimedia contents .

Korean Patent Publication No. 10-2009-0002546 Korean Patent Publication No. 10-2011-0010163

In the conventional online lecture service, when the produced video contents utilize a pamphlet or a presentation, it is easily distorted due to the movement of the camera, the changing illumination, and the like, It takes up a lot of capacity. Therefore, it takes a lot of time for the learner to download and stream the lecture contents, and it is not possible to take smooth lectures in a place where the network environment is poor.

In addition, in the conventional online lecture providing method, the lecturer uploads the video file taken in advance to the server, and the lecturer downloads the lecture by taking the lecture in many cases, so that the lecturer can communicate with the lecturer in both directions It is inconvenient to use it. Also, it takes more time to edit the photographed images and additional shooting equipment and photographing equipment required for the online lecture contents production, such as camcorder, camera, etc., There is a problem that the time increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a web socket-based learning system in which a lecturer and a learner access the same web page, Time content sharing method of the present invention.

Another technical problem to be solved by the present invention is to create lecture contents by using open source such as HTML5 and web socket, distribute lecture contents at low cost, take a lecture and take a web socket-based And to provide a real-time content sharing method.

It is another object of the present invention to provide a method and apparatus for providing a lecture in real time without a separate process by accessing a web browser after departing from a conventional method of purchasing a voice file, And to provide a real-time content sharing method based on a web socket capable of real-time interaction between students and lecturers.

The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a web socket-based real-time content sharing method comprising: receiving a lecture content from a first client device; And generating a web address associated with the web browser, the first client device and the second client device accessing the same web browser using the web address, and an event control signal generated in the lecture process And controlling the contents of the lecture based on the lecture contents and synchronizing the lecture contents displayed on the first client device and the lecture contents displayed on the second client device in real time.

The web address includes encrypted URL information, and in the step of connecting to the web browser, the first client device or the second client device inputs the encrypted URL information to an external web browser and accesses the web browser .

Wherein the event control signal is transmitted to a web socket server operatively associated with the server, and wherein, in the step of controlling the content of the lecture, the web socket server detects the event on the web browser displayed on the first screen of the first client device And transmits the event control signal to the server. The server can generate event information on the content of the lecture based on the received event control signal.

The step of synchronizing the contents of the lecture in real time may include displaying the lecture contents including the event information on the first screen and the second screen of the second client apparatus connected to the same web browser as the first client apparatus Step < / RTI >

Wherein the web socket server assigns the same identifier to the first client device and the second client device connected to the same web browser and transmits the received event control signal to a plurality of client devices can do.

The web socket server may grant different control rights to the first client device, which is a lecturer, and the second client device, which is a lecturer, and may selectively share the event control signal based on the control authority.

Wherein the event control signal includes a question event and a response event, wherein synchronizing the lecture contents in real time comprises: generating the question event based on a first event control signal received from the first client device, And generating the response event based on the second event control signal received from the second client device and reflecting the response event on the lecture contents.

The second client device may include a plurality of client devices, and the server may grant a response authority based on a reception time point of a plurality of the second event control signals received from the plurality of client devices.

The step of generating the question event and reflecting the question event to the content of the lecture includes generating a response icon and further generating and displaying the response icon in the lecture content displayed on the screen of the plurality of client devices, May be determined based on a selection time point of the response icon.

A computer-readable storage medium according to an embodiment of the present invention includes a server receiving a lecture content from a first client device, a web browser displaying contents of the lecture, and a web address cooperating with the web browser , The first client device and the second client device accessing the same web browser using the web address, and controlling the content of the lecture based on an event control signal generated in the lecture process, And a step of synchronizing the lecture contents displayed on the device and the lecture contents displayed on the second client device in real time.

According to the present invention, an encrypted web address is generated for the content of the lecture registered in the server by the first client device, which is a lecturer, and the second client device, which is the learner, receives a separate lecture material, You can browse the contents of the lecture or enter the live lecture in real time by entering the corresponding web address without installing it.

In addition, due to the event processing using the web socket, users accessing the same web address can receive events related to page switching, handwriting, and quizzes generated during the lecture process in real time, and the lecturer can also receive a quiz Response and feedback can be acquired in real time, enabling real-time two-way interaction.

In addition, since it uses open source such as HTML5 and Web socket, users can conveniently use the contents of the lecture without installing a separate program, thereby reducing cost and lecture content capacity can do.

1 is a flowchart showing a schematic flow of a web socket-based real-time content sharing method according to an embodiment of the present invention.
FIG. 2 is a diagram showing an example of using lecture contents between the constituent elements of FIG. 1; FIG.
FIG. 3 is a view showing contents of a lecture in FIG. 1 and an example of a web browser displaying the contents.
4 is a diagram showing an example of controlling lecture contents using the event control signal of Fig.
FIGS. 5 to 6 are diagrams illustrating various examples of events occurring during a lecture using the method of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Hereinafter, a web socket-based real-time content sharing method according to embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, a schematic Web-socket-based real-time content method according to an embodiment of the present invention is shown.

First, a step S11 of receiving lecture contents from the first client device may be performed. In this embodiment, the lecture content may be a document type content such as a presentation file, but the present invention is not limited thereto. The lecture content may further include various types of multimedia content that can be used in lectures such as image contents and image contents.

In this specification, the client device can be used in various ways. For example, the client device can be a mobile terminal such as a smart phone, a PDA, a tablet PC and the like, and a mobile terminal such as a smart watch, a smart glass, (Smart Basd), and the like. However, the present invention is not limited thereto, and may further include a desktop PC, or a smart home appliance.

The client device can send and receive a series of data by connecting to a server implemented with the web socket-based real-time content sharing method according to the present embodiment and a web browser linked with the server, and in some other embodiments, A predetermined executable file or an application program may be downloaded and installed in advance and then connected to the server. Alternatively, the client device may access the web browser connected to the server without performing a separate installation process, and after receiving the approval of the server after the membership process, the lecture contents may be provided or provided through the web browser.

The web socket-based real-time content sharing method according to this embodiment can produce lecture contents on a web browser supporting HTML5 standard technology, but the present invention is not limited to this, and it is possible to transmit lecture contents prepared in advance through an external application program to a server And stored. In addition, a general web server for processing basic user authentication and transmitting lecture contents to a web browser may be required to transmit contents of the produced lecture on-line.

When the lecture contents received from the first client device are stored in the server, the server can generate a web address linked with the web browser and the web browser in which the contents of the lecture are displayed (S12). Alternatively, when the first client device accesses the server and uploads the lecture contents to a web browser linked to the server and stores the lecture contents in the server, that is, a new web page in which lecture contents are displayed is generated, Lt; / RTI > That is, the web browser used in the present specification may be a web browser supporting the HTML5 function, such as Internet Explorer, Firefox, Chrome, Opera, Safari, etc., but the present invention is not limited thereto. The content of the lecture can be used in the same meaning as the new web page in which the content of the lecture is displayed.

In the present embodiment, the web address may be in the form of an encrypted URL, but the present invention is not limited thereto. The web address may include a general URL, for example, an identifier of the first client device as a lecturer, It can cover the included form.

That is, the web address to be generated is not generated in advance and is generated with a unique identifier or an encrypted script when the lecture contents are stored or the web browser is generated, so that malicious attacks from outside such as hacking can be prevented. The generated web address is transmitted to the first client device, and can be retrieved by a client device other than the first client device included in the lecture list of the server.

Subsequently, the first client device and the second client device can access the same web browser using the web address (S13).

The second client device may be a user who has not transmitted the content of the lecture to the server, for example, a student, and if the lecture selected by a specific lecturer (first client device) among a plurality of lecture listings posted on the server is selected, 1 web address associated with the client device (web address accessible to the content of the lecture provided by the first client device) to the second client device, and the second client device uses the web address to access the web browser Can be connected.

That is, after the second client device executes an external browser such as a general web browser such as Internet Explorer, Chrome, Safari, or Opera, a received web address is input to the address input window of the external web browser And access to the web browser (web page) in which the content of the lecture is displayed.

Generally, since one web address corresponds to one web browser (a web page), a first client device and a plurality of second client devices accessing the same using the same web address are connected to the same web browser, If the browser is a web page related to the lecture contents, all the users can display the same lecture contents only by inputting the web address to the client device (S14).

When the first client device and the plurality of second client devices access the web browser, the server can control the web browser, that is, the content of the lecture based on the event control signal received from the first or second client device (S15) , The content of the controlled lecture is displayed to all users equally as described above in step S14, so that the lecture contents displayed on the first and second client devices can be synchronized in real time.

Referring to FIG. 2, an embodiment of using the lecture contents among the components according to the web socket-based real-time content sharing method of the present invention is shown.

The first client device 10 may be a lecturer and may transmit the content of the lecture for progressing the lecture to the server 30. The content of the lecture can be produced in advance using another program of the first client device 10 or after the first client device 10 is connected to the server 30 by using various additional functions provided by the server 30 And may be created after the server 30 is connected.

To this end, the server provides a multimedia editing method using HTML5 technology, and the first client device 10 and the second client device 20 can install a web browser supporting HTML5 in advance. HTML5 is an open-source form, and the latest version of a commonly used representative web browser is installed, so that the first client device 10 and the second client device 20 can access the web browser in the present embodiment A variety of services provided by a server performing a web socket-based real-time content sharing method according to the present invention can be used.

As described above, the first client device 10 may transmit the content of the lecture to the server 30, and the server 30 may store the received lecture content in a database or cloud storage included in the server, Lt; RTI ID = 0.0 > a < / RTI > The generated web address may be posted on the server 30, but the present invention is not limited thereto. The server 30 may publish a list of contents of a plurality of lectures received from a plurality of lecturers, The second client device 20 may transmit the corresponding web address to the second client device 20 separately.

3, the lecture contents 54 displayed on the web browser 31 are shown.

The first client device 10 accesses the server 30 to create a web browser 31 for displaying the lecture contents 54 and transmits the lecture contents prepared in advance to the generated web browser 31, The lecture contents 54 can be created and stored by uploading images or using various functions provided by the web browser 31. [

To this end, the server 30 implementing the Web socket-based real-time content sharing method according to the present embodiment includes an editing area 53 for lecture content editing in a predetermined area of the web browser 31 provided by the server 30, May be separately provided.

The editing area 53 may include a plurality of icons capable of performing functions such as handwriting, recording, and slide movement of the content of the lecture, and the editing area 53 may be distributed in a plurality of areas.

For example, when the user activates the handwriting function activation button (not shown) in the editing area 53, a pointer 52 for generating handwritten information can be generated. In particular, using the HTML5 canvas tag The user can freely draw the handwriting information accompanying various graphics and lectures on the screen based on the raster graphics in the web page. For example, you can display the lecture material on the main slide using the main slide composed of HTML5 canvas tags, and input the handwriting information thereon.

The generated content 45 of the lecture can be stored in the server 30 together with the web browser 31. The server 30 can sort the content 45 by category, . The second client device 20 can generate a web address 51 in the address field of the external web browser supporting the HTML5, ), The user can access the corresponding web browser 31.

All the client devices connected to the same web address 51 may display the same web browser 31 and corresponding lecture contents 54 but the present invention is not limited thereto and the server 30 may control the client device Accordingly, a part of the content displayed in the same web browser 31 may be limited. Specific details will be described later.

Referring to FIG. 4, an example of controlling a web browser using the event control signal of FIG. 1 is shown.

The event control signal is a signal corresponding to various events that occur during the progress of the lecture using the web browser 31 on which the content of the lecture is displayed. For example, the event may be a handwriting event of a lecture content, a screen switching event, , A question and answer event, a statistical event, a recording event, and the like. However, the present invention is not limited thereto, and may include various events generated during the lecture process.

The handwritten event may be input information generated by the first client device 10, which is a lecturer created on the lecture contents, or by a plurality of second client devices 20, which are learners. For example, lecture data or lecture data Input information such as text, emphasis, underline, etc., which the lecturer may arbitrarily write in order to explain the lecture.

Specifically, such a handwriting event can be generated using a canvas tag of a web browser supporting HTML5, and a handwriting event generated using a canvas tag can be a set of coordinate information measured at predetermined time intervals. Each coordinate information may further include information such as creation time, color, thickness of a point, etc. For example, if a lecturer generates an arbitrary handwriting event in a lecture content during a lecture recording process, The coordinate information of the handwriting event measured at predetermined time intervals can be stored instead of capturing and storing all the screens of the browser. Thereafter, when the coordinate information stored at the time of reproducing the content of the recorded steel is generated with a time difference, the handwritten event can be reproduced on the content of the lecture.

In the conventional lecture contents production process, the lecture data of the lecturer and the handwriting information generated in the lecture data are generated at a predetermined time interval, and the moving picture file is transmitted to the server through the encoding process of the corresponding moving picture file. In the case of the video lecture contents, the lecturer has to download a very large capacity video file when downloading or streaming the video. However, since the handwritten event according to the present embodiment can store the handwritten information as a plurality of coordinate information, The capacity can be reduced.

The screen change event may be an event occurring when the slide of the lecture material is changed. The pointer position event may be pointer information of a mouse, input information detected from a touch pad, a touch screen, or the like. And may further include coordinate information on the coordinate system. The operating event is an event generated in response to an input command input from a lecture content creator, that is, a lecturer. For example, the operating event is URL information of an image or an image generated at the time of calling a quoted material, The corresponding event can be further included.

For example, when the first client device 10 performs an action such as handwriting, editing, slide control, etc., it is converted into an event control signal for processing each event type, occurrence time, And transmitted to the server 40.

A typical web server is a one-way communication. In other words, when a request is made by a browser, the result is returned from the server to the web browser. If the user does not operate the web browser, the server does not perform any work and can transmit the event generated by the server to the web browser none.

In order to improve this, a web socket is called a web socket, in which a web browser and a server create a dedicated socket and exchange events with each other so that the server can transmit events to the browser first. The program is called a web socket In order to send and receive, a socket, which is a dedicated path, can be created. It is possible to perform a data communication process by creating a socket between programs installed in a physical server, or to send and receive data through an external program and a socket connected to the network.

In order to implement a Web socket, there is a program that implements a web socket like a web server program, and a web socket can be implemented through a programming language such as java or node.js. The server that creates and implements the web socket is called the web socket server 40.

The web socket server 40 may be a server for interfacing with the server 30 to process an event control signal and may be an independent server for performing a web socket function of HTML5, 30 may include the web socket server 40 or may perform the functions of the web socket server 40 instead. That is, the server 30 and the web socket server 40 may be implemented by being programmed in one device, or may implement a separate server 30 and a web socket server 40 in a physically separated independent device have.

That is, after receiving the event control signal generated from the first client device 10 at the web socket server 40 interlocked with the server 30, the event server 30 analyzes the event control signal and transmits the analyzed event control signal to the server 30, The server 30 can generate event information based on the received event control signal and control the lecture contents 31. [ The controlled lecture contents 31 are equally displayed on all the client devices connected to the same web address so that the screen of the first client device 10 and the screen of the second client device 20 can be synchronized in real time.

To this end, the web socket server 40 or the server 30 assigns the same identifier to the first client device 10 and the second client device 20 connected by the same web browser, and transmits the received event control signal to the same It can be shared with the client device to which the identifier is assigned.

In other words, it is possible to assign different identifiers to different client devices connected to different web addresses, classify a plurality of event control signals transmitted to the web socket server 40 on the basis of identifiers, It is possible to transmit different event control signals.

In some other embodiments, the web socket-based real-time content sharing method according to the present invention grants the client apparatuses with different control rights and accesses the same web browser according to the granted control authority, Lt; / RTI >

Specifically, when the first client device 10 is a lecture and the second client device 20 is a learner, the server 30 controls the first client device 10 and the second client device 20 in a differential manner And the event control signal can be selectively shared according to the control authority. For example, the web socket server 40 transmits a first event control signal, which is a slide control event received from the first client device 10 as a lecturer, and a slide control event, which is a slide control event received from the second client device 20, 2 event control signal. When the server 30 or the web socket server 40 receives the first and second event control signals, the lecture note information generated based on the first event control signal according to the control authority is transmitted to all the clients And the lecturer's personal handwriting information generated based on the second event control signal may be displayed only on the client device that generated the second event control signal or selectively displayed on the second client device, .

5 to 6, a first event control signal, which is a quiz event, may be generated from the first client device 10, which is a lecturer, as shown in FIG. 5 (a) The socket server 40 and the server 30 process the first event control signal to reflect the quiz event to the web browser.

At this time, when the control authority of the first client device 10 connected to the server 30 and the control authority 20 of the second client device are different from each other, the server 30 acquires different event information Can be generated. The generated event information is all reflected in the web browser, but the event information displayed according to the control right is limited to restrict the event information displayed on the first screen of the first client device 10 and the web screen displayed on the second screen of the second client device 20. [ The lecture contents 31 on the browser may be different from each other.

5 (a), only the question event 55 may be displayed in the first client device 10, but as shown in (b) of FIG. 5, the second client device 10 The question event 55 and the response icon 56 may be further displayed on the web browser 31. [ Specifically, the server 30 generates a question event 55 and a response icon 56 according to the received first event control signal and reflects the question event 55 and the response icon 56 to the web browser 31, It is possible to inquire the different control authorities given to the client device of the client device and selectively display the event information according to the control authority.

The second client device 20 generates a second event control signal, which is a response event for the generated question event, and transmits the second event control signal to the web socket server 40. When the server 30 receives the second event control signal, And display the response event on the web browser 31. [ In this embodiment, the second event control signal is generated by clicking or touching the response icon 56 generated in (b) of FIG. 5, but the present invention is not limited thereto. Instead of the response icon 56, Or a response area for text entry may be displayed in place of the response icon 56 or with a response icon 56 and by selecting a particular item from the selection items or entering text that conforms to the content of the question, A signal may be generated.

6, a response event 57 may be generated based on a plurality of second event control signals received from a plurality of second client devices 20, and the first client device may generate a response event 57, And can receive a response from the second client device to which the response authority is granted.

At this time, the response event 57 can be sorted on the basis of the reception timing of the plurality of second event control signals received from the plurality of second client devices by the web socket server 40, In a sort order included in < / RTI > For example, when a plurality of learners click on a buzzer icon, which is a sort of the response icon 56, for the question A, the client device can be sorted in order on the basis of the student who first clicks the buzzer icon on the screen of the client device, Responsibility can be given in turn from the student in the highest priority order.

In some other embodiments, the response authority may be granted to the second client device selected as being from the first client device instead of being automatically granted the response authority. That is, the first client device can select a presenter based on a list of a plurality of respondents indicated in the web browser, receives an identifier of the second client device selected by the first client device at the web socket server, And may grant the response authority to the second client device selected based on the identifier.

At this time, a separate event for responding may be displayed in the specific second client device to which the response authority is granted, and a separate event may not be displayed in the screen of the second client device to which the response authority is not granted.

That is, the contents of the same lecture are not always displayed in all the client devices connected to the same web browser, and the kinds of event information shared according to the control right or the response authority may vary.

On the other hand, according to an embodiment of the present invention, it is possible to store and implement computer-readable codes in a computer-readable storage medium. Computer-readable storage media includes any type of storage device in which data that can be read by a computer system is stored.

The computer readable code is configured to perform the steps of implementing a web socket based real time content sharing method according to an embodiment of the present invention when read and executed by a processor from a computer readable storage medium. Computer readable code can be implemented in a variety of programming languages. And functional programs, codes, and code segments for implementing embodiments of the present invention may be readily programmed by those skilled in the art to which the present invention pertains.

Examples of computer-readable storage media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like. In addition, the computer-readable storage medium may be distributed over a networked computer system so that computer readable code is stored and executed in a distributed fashion.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: first client device
20: second client device
30: Server
31: Web browser
40: Web Socket Server

Claims (10)

A web-socket-based real-time content sharing method controlled by a server,
Receiving lecture content from a first client device;
Generating, in response to receiving the content of the lecture, a web address in which the content of the lecture is displayed and a web address in an encrypted form associated with the web browser;
Transmitting the web address of the encrypted form to the first client device and a second client device requesting the content of the lecture;
Allowing connection of the first client device and the second client device to the web browser when receiving the web address of the encrypted form from the first client device and the second client device; And
And controlling the content of the lecture based on each event control signal generated in the first client device and the second client device during lecturing,
Wherein controlling the content of the lecture comprises:
Querying a control right granted to each of the first client device and the second client device;
Generating different event information corresponding to each control right based on the respective event control signals when the control right of the first client device and the control right of the second client device are different; And
And controlling the lecture contents such that the lecture contents output from the screen of the first client device and the lecture contents output from the screen of the second client device are different from each other based on the different event information,
A web socket based real - time content sharing method. The method according to claim 1,
Wherein the web address includes encrypted URL information,
In the step of allowing connection of the first client device and the second client device to the web browser,
Wherein the first client device and the second client device are connected to the web browser by inputting the encrypted URL information to an external web browser. The method according to claim 1,
Wherein each of the event control signals is transmitted to a web socket server operatively associated with the server,
In the step of controlling the content of the lecture,
The web socket server comprises:
Receiving the event control signal detected on the web browser displayed on the screen of the first client device and transmitting the event control signal to the server,
The server comprises:
And generates event information on the lecture contents based on the received event control signal. The method of claim 3,
And displaying the lecture contents including the event information on a screen of the first client device and a screen of the second client device connected to the same web browser as the first client device to synchronize the lecture contents in real time A method of sharing a web socket-based real-time content, further comprising: The method of claim 3,
The web socket server comprises:
The same identifier is assigned to the first client device and the second client device connected to the same web browser,
And sharing the received event control signal with a plurality of client devices to which the same identifier is assigned. The method of claim 3,
The web socket server comprises:
Assigning different control rights to the first client device as the lecturer and the second client device as the lecturer,
And selectively sharing the event control signal based on the control authority. 5. The method of claim 4,
Wherein the event control signal includes a question event and a response event,
The step of synchronizing the contents of the lecture in real-
Generating the question event based on the first event control signal received from the first client device and reflecting the generated question event to the lecture contents; And
And generating the response event based on a second event control signal received from the second client device and reflecting the response event on the lecture contents. 8. The method of claim 7,
Wherein the second client device comprises a plurality of client devices,
Wherein the server grants a response authority based on a reception timing of a plurality of the second event control signals received from the plurality of client devices. 9. The method of claim 8,
Wherein the step of generating the question event and reflecting the generated question event to the lecture content comprises:
And generating and displaying a response icon in the content of the lecture displayed on the screen of the plurality of client devices,
Wherein the reception time is determined based on a selection time point of the response icon. 12. A computer-readable storage medium having stored thereon a program for performing a web-socket-based real-time content sharing method according to any one of claims 1 to 9.

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