WO2011145848A2 - Online education system, and communication terminal for same - Google Patents

Abstract

The present invention relates to an online education system and to a communication terminal for same. The online education system to be implemented via a network according to the present invention includes: a professor terminal driving a first professor container and a first learning material container having respectively different perspective depth priorities so as to position and display learning material data on the first learning material container and to position and display the handwriting of a professor on the first professor container; and at least one student terminal driving a second professor container and a second learning material container having respectively different perspective depth priorities so as to receive the learning material data and position and display same on the second learning material container and to receive the handwriting of the professor and position and display same on the second professor container.

Description

Online education system and communication terminal for same

The present invention relates to an online education system and a communication terminal for the same, and more particularly to an online education system for providing lectures, questions and answers, one-on-one learning, and examinations through a network, and a communication terminal for the same.

This application claims priority based on Korean Patent Application No. 10-2010-0047018 filed on May 19, 2010, and all the contents disclosed in the specification and drawings of the application are incorporated in this application.

Conventional education methods are mostly education in a certain time and place, such as school, academy. This method of education is also given at a certain time and place. This teaching method has the advantage of excellent learning efficiency as face-to-face learning in which the professor and the learner face to face, but there are limitations due to time and space, so that learning cannot be performed anytime anywhere.

Accordingly, broadcast education using broadcast media such as TV, radio, and the like is being made, but in-depth education is difficult because interactive education cannot be performed. In addition, there is a problem that the broadcast education can not consider the general conditions of the learners by providing education to the unspecified number.

Meanwhile, with the development of communication technology, people can carry the small portable terminal and use the Internet while on the go. Conventional portable terminals have been limited to sending and receiving voice calls and text messages, but recently, with the development of communication technologies, wireless internet can be used while moving at low rates. In particular, the spread of smart phones allows the use of high-speed Internet services in small portable terminals. Recently, the wireless LAN function is installed in the smart phone, and not only the Internet through the 3G communication network but also the free Internet through the wireless LAN network is possible.

In addition, the portable terminal is reducing the size of the entire terminal for easy portability, and accordingly, the key button, which is an input interface for receiving a user's input, is also made small. However, if the key button, which is a user input interface, is too small, it is inconvenient for the user to operate, and even if the size is reduced, the size of the input interface such as the key button cannot be reduced indefinitely.

Accordingly, a touch screen technology that solves the problem of size limitation of key buttons and enhances user convenience in a graphic user interface has been developed and adopted in a portable terminal. In other words, by using a touch screen made of the input device and the output device of the portable terminal, the key button of the terminal can be eliminated, and a predetermined function is performed by the user's touch input on the touch screen, thereby making the most of the graphic user interface. To be.

As such, as communication technology advances, people can use data communication such as the Internet anytime and anywhere. Therefore, it is required to develop an online education method capable of training anytime and anywhere without restriction of time and place by improving the conventional education method having a limited time and place using such communication technology. In particular, as the input method through a key button or a keyboard is gradually changed to a touch screen input method, a technology development for online education is required according to the input method through the touch screen.

The present invention has been made to solve the above problems, and to provide an online education system and a communication terminal for the education to enable a large number of learners through the network without the restriction of time and place. There is this.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In accordance with a first aspect of the present invention for achieving the above object, an online education system via a network drives a first teaching container and a first learning material container having different priorities of perspective depths, A teaching terminal that locates and displays learning material data, and the teaching container places and displays writing data of the professor; Connected to the teaching terminal through the network, generates a lesson data storage unit and a learning data storage unit according to the connection of the teaching terminal, receives the learning data data from the teaching terminal, and stores the learning data data in the learning data storage unit; A class management server configured to receive writing information of the professor and store the class data in the class data storage unit; And a second teaching container and a second learning material container connected to the class management server through the network and having different priorities of perspective depths, thereby storing the learning material data stored in the learning data storage of the class management server. And at least one student terminal that receives and displays the location in the second learning material container, and receives and writes the writing data of the professor stored in the class data storage unit in the second teaching container.

The teaching terminal comprises screen coordinates in which the pen is moved from the initial point to the end point by using a time point at which the pen of the professor is down for writing as an initial point and a time point at which the pen is up as an end point. It is preferable to generate a value and transmit the generated screen coordinate value as handwriting data to the class management server at the time when the pen is up.

The student terminal is configured to overwrite the pixel data of the writing data displayed on the second teaching container and the learning data data displayed on the second learning material container at a position corresponding thereto by considering the transparency value. After generating the pixel data, the new pixel data may be replaced with the corresponding existing pixel data of the learning material data, and an overwrite function may be performed to remove the writing data displayed on the second teaching container.

In addition, the student terminal drives the second query container and the second query container having different priorities of depth of perspective from the second teaching container and the second learning material container to locate and display student handwriting data of the student and display the query handwriting data. The class management server may further include a query data storage unit to store query writing data received from the student terminal in the query data storage unit, and the teaching terminal may include the first teaching container and the first learning unit. A first query container having a different priority level between a material container and a depth of perspective may be driven to receive the query writing data from the class management server and to display the query writing data in the first query container.

In addition, when the teaching terminal selects one of the at least one student terminal as the object of one-to-one learning by a professor, the teaching terminal has a priority different from a depth of perspective with the first teaching container and the first learning material container. 1 The student terminal is activated and transmits the control information accordingly, the student terminal selected as the object of one-to-one learning, the priority of the depth of the perspective and the second teaching container and the second learning container and the second teaching container as selected as the object of one-to-one learning Activate the second student container having a different rank, and the class management server further includes a personal data storage including a professor's personal folder and a student's personal folder, and receives the control information. Link the URLs of the 2 student containers to the student-to-person personal folders Set to a folder, you can change the URL link of the first professor of container in the data storage unit classes with the professor personal folders.

In addition, the teaching terminal generates a virtual rectangle on a screen, and when the writing data of the professor made in the first teaching container is out of the virtual rectangle, the teaching professor's writing data is located in the virtual rectangle. Move, and the student terminal may move the second teaching container in response to the movement of the first teaching container in the teaching terminal. Therefore, even if the screen sizes of student terminals are different, the handwriting data of the professor may be automatically displayed on the screens of all students.

Alternatively, the teaching terminal includes a first student container having a first priority container and a first student container having different priorities of depths of perspective from the first teaching material container and the first teaching material container, wherein the at least one student terminal includes: the second teaching container; And a second student container having different priorities of depth of perspective from the second learning material container, and the class management server includes a teaching test data folder (with a student folder as a subdirectory) and a student test data folder. And a test data storage unit configured to store test data data, wherein the test data storage unit comprises: a link URL of the first and second learning material containers according to the test related control information received from the teaching terminal; Change from the data storage to the test data storage, and also the link UR of the second student container Set L to the student-specific test data folder of the corresponding student, change the link URL of the second professor container to the corresponding student-specific folder in the professor test data folder, and change the link URL of the first professor container. Optionally, one of the student-specific folders in the professor test data folder may be changed, and the link URL of the first student container may be selectively set to one of the student-specific test data folders.

On the other hand, according to another aspect of the present invention for achieving the above object, through the communication terminal and the network of at least one student side having a first teaching container and the first learning material container having a different priority of the depth of principal A communication terminal of a faculty side connected to provide an online education service includes a client having a second teaching container and a second learning material container having different priorities of perspective depths, wherein the second teaching container is the second teaching container. The teaching material container has a higher priority than the teaching material container, and the second teaching container is synchronized with the first teaching container so that the behavior in the second teaching container is reflected in the first teaching container, and the second teaching material container is the first teaching container. 1 is synchronized with the learning material container in the second learning material container Above the first it is reflected in the learning material container, wherein the client, is shown by placing the handwriting data of the display position by the learning data data in the second study material container, and a professor to the second container professor.

The client may be configured as a starting point at which the pen of the professor is down for writing in the second teaching container as an initial point, and a starting point at which the pen is up, as the end point. The generated screen coordinate value may be generated, and the generated screen coordinate value may be transmitted as handwriting data when the pen is up.

Further, the client may overwrite the pixel data of the writing data displayed on the second teaching container and the pixel data of the learning data data displayed on the second learning material container at a corresponding position by considering the transparency value. After generating new pixel data, the new pixel data may be replaced with corresponding existing pixel data of the learning material data, and an overwrite function may be performed to remove writing data displayed on the second teaching container.

The at least one student terminal communication terminal may further include a first query container having a first priority container different in priority from the first teaching container and the first learning material container, and having a depth of perspective. Locate and display query handwriting data, and the client further comprises a second query container having a different priority in depth of perspective from the second teaching container and the second learning material container and synchronized to the first query container; The query writing data displayed on the first query container may be displayed on the second query container.

The client may generate a virtual rectangle on the screen, and if the professor's writing data in the second professor container is out of the virtual rectangle, the client may move the second teaching container so that the writing data of the professor is located in the virtual rectangle. Move it so that the writing data of the professor is always on the screen of each student.

The present invention provides on-line lectures, Q & A, one-on-one learning, and test-taking, providing new educational opportunities for students who lack private tutoring opportunities. In addition, the present invention can provide an education service that is cheaper than face-to-face learning by providing an education service through online.

In addition, in the present invention, in providing an online education service, a video file or an image file is not directly transmitted or received through a network, but only a coordinate value and control information of handwritten data are transmitted and received, thereby reducing network traffic and reducing the load on the server. It is effective to alleviate.

In addition, the present invention, when a large number of students participate in the online education, in consideration of the size of the terminal of each student, by automatically placing the professor's handwriting data in the student's screen without having to move the scroll bar, etc., learning efficiency To increase.

In addition, the present invention has the effect that the lecture, the question and answer, and one-to-one learning does not affect each other through the overwrite function, thereby increasing the continuity of the lecture so as not to reduce the learning efficiency.

1 is a view showing the configuration of an online education system according to an embodiment of the present invention.

FIG. 2 is a signal flowchart illustrating a method of performing online education in the online education system of FIG. 1.

3 is a diagram showing the configuration of an online education system according to another embodiment of the present invention.

4 is a signal flow diagram illustrating a query operation in the online education system of FIG.

5 is a diagram showing the configuration of an online education system according to another embodiment of the present invention.

6 is a signal flow diagram illustrating one-to-one learning in the online education system of FIG. 5.

7 is a diagram showing the configuration of an online education system according to another embodiment of the present invention.

8 is a signal flow diagram illustrating a process of taking an exam in the online education system of FIG. 7.

9 is a view illustrating a process of moving a container in a teaching terminal according to an embodiment of the present invention.

10 is a view illustrating a process of moving a container in conjunction with the teaching terminal in the student terminal according to an embodiment of the present invention.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of an online education system according to an embodiment of the present invention.

As shown in FIG. 1, the online education system according to the present embodiment includes a teaching terminal 110, a student terminal 130, and a class management server 170. The teaching terminal 110, the student terminal 130, and the class management server 170 are connected through a network 150. The network 150 may be one or a combination of a mobile communication network, an internet network, or a dedicated line. Although only one student terminal 130 is illustrated in FIG. 1, a plurality of student terminals 130 may participate in learning.

The teaching terminal 110 and the student terminal 130 are input / output devices for receiving an input from a user and outputting various types of information on a screen, and a communication terminal having a communication interface for communicating with the network 150 to perform communication. Communication terminals, notebook computers, desktop computers, tablet PCs, and the like. The teaching terminal 110 and the student terminal 130 include a touch screen, a tablet, a pen mouse, an electronic pen, and the like as input devices.

The teaching terminal 110 and the student terminal 130 have clients 111 and 131 for online education. The clients 111 and 131 may be dedicated programs for online education, or may be general-purpose programs such as an internet browser. As shown in FIG. 1, the clients 111 and 131 form a container, which is a virtual space area for distinguishing the depth (Z value) of the perspective felt from the user's point of view. Are synchronized. Containers are collection spaces of objects and have no influence on each other. The containers themselves are not displayed, but objects located in the containers are displayed. For example, in an object-oriented language, when there are a plurality of child objects inherited from the parent object in the object-oriented language, the parent object acts as a container for the child object and moves or positions the position of the child objects on the screen as a whole. . In the present invention, the container has a priority, and in this embodiment, the teaching container 113 has a higher priority than the learning material container 115.

As shown in FIG. 1, the clients 111 and 131 form the teaching containers 113 and 133 and the learning material containers 115 and 135, respectively. Faculty containers 113 and 133 are activated when a professor's handwriting on-line education is made and received and displayed the handwriting as an object. The learning material containers 115 and 135 receive and display learning material data, which is a class object, as an object. Teaching containers 113 and 133 are higher than learning material containers 115 and 135 in depth of perspective. Accordingly, the writing of the professor displayed in the teaching containers 113 and 133 is displayed above the learning materials displayed in the learning material containers 115 and 135 from the viewpoint of the user.

The client 111 of the teaching terminal 110 has a predetermined time interval when the professor starts writing on the teaching container 113 with an electronic pen or a mouse, that is, the pen moves down with the pen down as an initial point. The X- and Y-values are generated based on the screen coordinates or the content coordinates and stored in the memory, and then the handwriting data generated is transmitted at the end of the writing, that is, the pen up. The handwriting data includes not only coordinate values but also time interval information between each coordinate value. In this case, the client 111 may drive a timer at the time of pen down to display the writing in the teaching container 113 at regular time intervals and transmit the writing data. Preferably, the handwritten data has a file name according to certain rules.

In addition, the client 111 of the teaching terminal 110 transmits not only handwriting data but also control information including container information and event information about the teaching of the professor. For example, when writing is done, when writing is deleted, when the page of the learning material is changed, or when the color and thickness of the line being used are changed, the coordinate value of the scroll bar on the screen, the page value of the current learning material, the file name of the writing data. Send event information such as.

The client 131 of the student terminal 130, the teaching container 133 and the learning material container 135 of the student side based on the control information transmitted from the teaching terminal 11 and stored in the class management server 170. Is synchronized with the teaching container 113 and the learning material container 115 formed in the teaching terminal 110. In the teaching container 133 of the student side, the same writing as that of the professor made in the teaching container 113 of the professor side is displayed. In addition, the learning material container 135 formed by the client 131 of the student terminal 130 is also synchronized with the learning material container 115 formed in the teaching terminal 110 to display the same learning material data.

In addition, the client 111 of the teaching terminal 110 and the client 131 of the student terminal 130 support voice and / or video calls. The clients 111 and 131 receive a voice or / and image of the user and transmit the same to the counterpart, and output the voice or / and image received from the counterpart.

Referring to FIG. 1, the class management server 170 may include a communication unit 171, a controller 173, a class data storage unit 175, a learning data storage unit 177, and an audio and image data storage unit 179. Include.

The communication unit 171 communicates with the teaching terminal 110 and the student terminal 130 through the network 150. The controller 173 controls and manages the learning process between the teaching terminal 110 and the student terminal 130 as a whole.

Specifically, the control unit 173, when the client 111 of the teaching terminal 110 is connected, the approval number, type (professor or student), the number of students for opening a learning room from the client 111 of the teaching terminal 110 Receives information about through the communication unit 171. When the learning room establishment request is received in this way, the controller 173 allocates the class data storage unit 175 for the corresponding class to the handwriting data storage area, and the learning data storage unit 177 for the class in the learning material storage area. ), And also allocates the audio and image data storage unit 179 for the class, and sets the link URL of the client 111.

When the client 131 of the student terminal 130 is connected, the controller 173 receives the same approval number as the approval number opened and entered by the professor from the client 131 of the student terminal 130, and the type information. As it receives student information, and names. The control unit 173 is based on the approval number received from the client 131 of the student terminal 130, the link URL of the client 131 to the assigned class data storage unit 175, learning data storage unit 177 Audio and image data storage 179.

More specifically, the controller 173 sets the link URLs of the teaching container 113 of the teaching terminal 110 and the teaching container 133 of the student terminal 130 as the class data storage 175. In addition, the controller 173 sets the link URLs of the learning material container 115 of the teaching terminal 110 and the learning material container 135 of the student terminal 130 as the learning data storage 177.

When the controller 173 receives the writing data on the writing performed by the teaching container 113 of the teaching terminal 110 through the communication unit 171, the controller 173 stores the received writing data in the class data storage unit 175. . In addition, when the control unit 173 receives control information about an event or the like made in the client 111 of the teaching terminal 110 through the communication unit 171, the control unit 173 generates a guide file and stores the guide file in the class data storage unit 175. In addition, the controller 173 receives the learning data data from the client 111 of the teaching terminal 110 through the communication unit 171 and stores the learning material data in the learning data storage unit 177.

The client 131 of the student terminal 130 monitors the class data storage unit 175 in real time according to the set link URL, and when the guide file is generated in the class data storage unit 175, analyzes the guide file. The operation corresponding thereto is performed. For example, if the client 131 of the student terminal 130 stores the writing data in the class data storage unit 175 and a guide file is generated, the client 131 loads the writing data and displays the writing data in the teaching container 133. In addition, the client 131 of the student terminal 130 is displayed in the teaching container 133 when a guide file for handwriting deletion or line color change, scroll bar movement, etc. is generated in the class data storage unit 175. Deletes handwritten notes or changes line color.

In addition, when the client 131 of the student terminal 130 monitors the learning data storage unit 177 in real time according to the set link URL, and the learning data data is stored in the learning data storage unit 177, the learning material container. The training material data is displayed at 135. The client 131 of the student terminal 130 changes the page of the learning material data displayed in the learning material container 135 when the guide file for changing the page is stored in the class data storage unit 175.

In addition, the controller 173 of the class management server 170 receives voice and image communication data transmitted and received from the teaching terminal 110 and the student terminal 130 through the communication unit 171 to store the voice and image data storage unit ( 179).

In FIG. 1, the class management server 170 stores a guide file relating to handwritten data and control information in the class data storage unit 175, and the voices of professors and students in the audio and image data storage unit 179. Although video communication data has been described as being stored, according to the embodiment, handwriting data, control information, and voice and video communication data may be transmitted and received by the teaching terminal 110 and the student terminal 130 in real time without being separately stored. have.

Meanwhile, as described above, the client terminals 111 and 131 of the teaching terminal 110 and the student terminal 130 load and display the learning materials in the learning material containers 115 and 135 and display the teaching materials 113 and 133. ) Loads and displays the professor's handwriting data. In this case, the clients 111 and 131 store the learning material and the writing data in the memory of the terminal. As the amount of writing increases, the occupancy of the memory and system resources increases. Therefore, whenever you turn the page of the learning material, an unnatural animation occurs as a resource problem, and the feeling of writing on the learning material may become unnatural. Accordingly, the clients 111 and 131 of the teaching terminal 110 and the student terminal 130 may reduce the occupied amount of memory and system resources by overwriting the teaching writing data on the learning material. Specifically, it is as follows.

Learning materials are commonly used image files. When the teaching materials 110 and the clients 111 and 131 of the student terminals 130 locate and display the learning materials of the image files in the learning materials containers 113 and 135, they are decoded to perform bitmaps. Display the data state of an object. At this time, the bitmap object contains a series of pixel data, and the pixel data is a 32-bit integer that is 8 bits of alpha transparency value, 8 bits of red value, 8 bits of green value, and 8 bits of blue value. (ARGB).

In addition, when the professors 111 and 131 of the teaching terminal 110 and the student terminal 130 display the writing of the professor in the teaching containers 113 and 133, the drawing area (line thickness * line length) is generated by writing. ) Constitute pixel data of the same alpha transparency value (A) and color value (RGB). That is, since all the drowning regions generated by writing have the same transparency and color, each pixel data of the corresponding drowning regions is the same 32-bit integer.

The teaching material 110 and the clients 111 and 131 of the student terminal 130 are displayed on the learning material containers 115 and 135 by the instruction of a user (a professor or a student) or automatically at a predetermined time point. Superimposes the pixel data of the pixel data and the handwritten pixel data displayed on the teaching containers 113 and 133 to generate new pixel data, and then replaces the generated pixel data with corresponding pixel data of the training material as a bitmap object. . The clients 111 and 131 remove the writing objects displayed on the teaching containers 113 and 133. That is, since the writing data displayed on the teaching containers 113 and 133 is removed, the memory and system resources occupied by the corresponding pixel data are reduced.

An example of overlapping operation of pixel data of the learning material and pixel data of handwriting is as follows.

Environment: ActionScript 3.0, Flash Player 9

draw ()

public function draw (source: IBitmapDrawable, matrix: Matrix = null, colorTransform: ColorTransform = null, blendMode: String = null, clipRect: Rectangle = null, smoothing: Boolean = false): void

The client terminals 111 and 131 of the teaching terminal 110 and the student terminal 130 may perform the overwrite function by an instruction of a user (a professor or a student), or may automatically perform the overwrite function at a predetermined time point. have.

When the overwrite function is automatically performed, the clients 111 and 131 check the memory usage by referring to the memory of the system, and thus perform the overwrite function when the memory usage over the preset threshold is detected.

Alternatively, the clients 111 and 131 may perform the overwrite function at the end of the writing. Specifically, periods generated at the end of sentences (hot points (.), Question marks (?), And exclamation points (!)) End in the form of dots at the end, and these points only cause the pen to go down and up, but not to move. Therefore, when the pens 111 and 131 only generate pen down and up without moving the pen, the clients 111 and 131 recognize the time point at which writing is completed and perform an overwrite function.

Alternatively, the clients 111 and 131 may detect a change in the Y coordinate value of the handwritten data and perform an overwrite function. When the line is changed in line-by-line writing, the Y-coordinate value is greatly changed. Therefore, the client 111 and 131 compares the Y-coordinate value of the existing fill data with the Y-coordinate value of the current handwriting data. Recognize the line break and perform the overwrite function.

Alternatively, the client 111 or 131 determines that the lesson is completed on the page when the page of the learning material is turned on, and performs the overwriting function.

On the other hand, the learning material is overwritten on the client side is transmitted to the class management server 170 and stored in the learning material storage area may be used for later review of students. Preferably, the client 111 stores the overwritten learning material when turning the page.

FIG. 2 is a signal flowchart illustrating a method of performing online education in the online education system of FIG. 1.

Referring to FIG. 2, the professor first drives the client 111 in the teaching terminal 110 to access the class management server 170 through the network 150 (S201). Subsequently, the professor requests the establishment of a learning room by inputting an approval number, a name, a type (professional or student), the number of students, etc. on the connection initial screen of the class management server 170 (S203).

Accordingly, the client 111 of the teaching terminal 110 transmits the input approval number, name, type, number of students, etc. to the class management server 170, and the class management server 170 sends the approval number. As a reference, a storage area for online education is allocated (S205). Specifically, the class management server 170 allocates the class data storage unit 175 to the writing data storage area based on the approval number, and also allocates the learning data storage unit 177 to the learning data storage area, and voice And image data storage unit 179.

Subsequently, the class management server 170 sets the link URLs of the containers 113 and 115 running on the client of the teaching terminal 110 in the allocated storage area. Specifically, the class management server 170 sets the link URL of the teaching container 113 of the teaching terminal 110 to the class data storage unit 175 of the writing data storage area, and the link URL of the learning material container 115. Set to the learning data storage unit 177 of the learning data storage area (S207).

After the preparation for the online education is completed, students who want to participate in the online education are connected to the class management server 170 by driving the client 131 in the student terminal 130 (S209), and the initial access screen. In order to enter the learning room opened by the professor, enter the same approval number as the approval number entered by the professor, and also enter a name, type (professor or student), and the like. Accordingly, the client 131 of the student terminal 130 transmits the information input by the student to the class management server 170 (S211).

The class management server 170 which has received the information from the client 131 of the student terminal 130 reads the link URLs of the containers 133 and 135 which are driven by the client 131 of the student terminal 130. The storage area allocated in step S205 is set. Specifically, the class management server 170 sets the link URL of the teaching container 133 of the student terminal 130 to the class data storage unit 175 of the writing data storage area, and the link URL of the learning material container 135. Set to the learning data storage unit 177 of the learning data storage area (S213).

Then, the professor uploads the learning material data stored in the storage medium (eg, hard disk, USB drive, etc.) of the teaching terminal 110 to the class management server 170 through the client 111 (S215). Accordingly, the uploaded learning material data is stored in the learning data storage unit 177 of the learning material storage area of the class management server 170.

When the learning material data is stored in the learning data storage unit 177 of the class management server 170 as described above, the learning material container 115 and the student of the teaching terminal 110 linked to the learning data storage unit 177. The learning material data stored in the learning data storage unit 177 is loaded and placed in the learning material container 135 of the terminal 130 (S219). Here, the learning material data is an image file or a document file. The teaching material may display the learning material when the professor selects the learning material data from the storage medium of the teaching terminal 11.

After the learning material is displayed on the teaching terminal 110 and the student terminal 130, the professor starts the class. When the professor writes through the input device of the teaching terminal 110, the teaching container 113 of the teaching terminal 110 is activated to display the writing of the professor (S221). The container is a virtual space area for distinguishing the depth (Z value) of the perspective felt from the user's point of view. Since the teaching container 113 has a higher priority than the learning material container 115, the writing of the professor is displayed on the learning material. .

On the other hand, when the professor writes in the teaching terminal 110, the client 111 of the teaching terminal 110 transmits the writing data and control information of the professor to the class management server 170 via the network 150 (S223). ). In this case, the client 111 of the teaching terminal 110 may have a constant time when the professor starts writing on the teaching container 113 with an electronic pen or a mouse, that is, a pen down as an initial point. After generating and storing the X value and the Y value based on the screen coordinates or the content coordinates at time intervals, the generated writing data is transmitted with the end point of writing, that is, the pen up. The control information includes the color of the line, the thickness, the coordinates of the scroll bar, the file name of the writing data, and the like.

When the handwriting data and the control information are transmitted as described above, the class management server 170 generates a guide file according to the control information and transmits the guide file to the class data storage unit 175 linked to the teaching container 113 together with the handwriting data. Save (S225). As the writing data and the guide file are stored in the class data storage unit 175, the client 131 of the student terminal 130 analyzes the guide file and links the student terminal 130 linked to the class data storage unit 175. The writing data is displayed on the teaching container 133 (S227). As a result, students will be able to see the professor's notes on the learning material.

In this way, the teaching terminals 110 and the clients 111 and 131 of the student terminal 130 perform the above-described overwriting function by the instruction of the user (professor or student), or are automatically determined. By performing the above-described overwrite function at the time point, the writing of the professor is superimposed on the learning material in the bitmap form displayed on the learning material containers 115 and 135, and the writing data located in the teaching containers 113 and 133 is removed. can do.

3 is a view showing a schematic configuration of an online education system according to another embodiment of the present invention. In FIG. 3, the same components as in FIG. 1 include all the functions and operations of each component of FIG. 1.

Compared to FIG. 1, the online education system according to the present embodiment with reference to FIG. 3 enables question operation during class. As illustrated in FIG. 3, the query data storage unit 310 is further included in the writing data storage area of the class management server 170. In addition, the teaching terminal 110 and the student terminal 130 is further provided with a query container (330, 350).

When the learning room is opened by the professor, the controller 173 of the class management server 170 further generates a query data storage unit 310 in the writing data storage area, and the teaching terminal 110 and the student terminal 130. Set the link URL of the query containers 330 and 350 of the query data storage unit 310.

The controller 173 of the class management server 170 controls the questioning from the client 131 of the student terminal 130 when the student clicks the [Question] menu on the client 131 of the student terminal 130. Receives a signal, and generates and stores a guide file using the personal identification information of the student in the query data storage 310.

In addition, the controller 173 of the class management server 170, when the professor selects one of the students requesting a query from the client 111 of the teaching terminal 110 receives the approval signal from the client 111 accordingly; In addition, a guide file according to the approval signal is generated and stored in the class data storage unit 175. Since the client 131 of the student terminal 130 monitors the class data storage unit 175 in real time before the query is approved, that is, during the class, the guide file according to the approval signal is stored in the class data storage unit 175.

The client 131 of the student terminal 130 analyzes the guide file according to the approval of the query stored in the class data storage unit 175 to activate the [approval request] button, and activates the query container 350.

When the query approval is completed as described above, the client 111 of the teaching terminal 110 monitors the query data storage 310 in real time, and the client 131 of the student terminal 130 communicates with the class data storage 175. The query data storage unit 310 is monitored in real time.

The control unit 173 of the class management server 170, if a student writes a question in the query container 250 of the student terminal 130 of the student who has been approved for the query application, the student's query writing data and control information Received from the client 131 of the terminal 130, and generates a guide file according to the control information and stored in the query data storage unit 310 connected to the link URL with the query handwriting data.

On the other hand, when the query operation is started, the client 131 of the student terminal 130 of the student other than the student whose query is approved, the query data storage unit 310 according to the link URL set in the query data storage unit 310. ) In real time and analyzes the guide file stored in the query data storage 310 to perform the operation accordingly.

Specifically, when the client 131 of the student terminal 130 of the student other than the student whose query is approved, the query writing data of the student making a query is stored in the query data storage unit 310 and the guide file accordingly is stored. After analyzing the guide file, the query container 350 is activated to display the query writing data on the query container 350. Accordingly, when a plurality of students participate in a class and a query of one of the students is approved and the question is written, another question is displayed in the query container 350 of another student.

As described above, when the client 111 of the teaching terminal 110 generates and stores a guide file according to a query request in the query data storage unit 310, the client 111 analyzes the guide file and displays a list of students requesting a query. When the faculty selects a particular student, the controller transmits the admission control signal to the class management server 170 through the network 150.

In addition, if the client 111 of the teaching terminal 110 stores the query handwriting data of the student whose query is approved in the query data storage unit 310 and a guide file corresponding thereto, the query file is analyzed and the query container is analyzed. 330 is activated to display the query handwriting data in the query container 330. Therefore, the professor can see the questions of the students whose questions are approved on the screen.

On the other hand, when the professor 111 of the professor terminal 110 writes an answer to a question displayed on the query container 330, the professor container 113 activates the professor container 113 to write the question and answer handwriting of the professor container 113. ) And transmits the question and answer handwriting data to the class management server 170 through the network 150.

The controller 173 of the class management server 170 stores the writing data input from the teaching container 113 on the professor side in the class data storage unit 175, so that the question and answer writing data is also included in the class data storage unit 175. ) And the guide file at the same time. In addition, since the teaching container 133 of the student terminals 130 is always linked to the class data storage unit 175, questions are answered in the teaching container 133 of the students according to the guide file stored in the class data storage unit 175. The handwriting is displayed.

Alternatively, the client 111 of the teaching terminal 110, at the same time when the professor selects a specific student to approve the query, writes the writing data already recorded in the teaching container 113 to the learning material data of the learning material container 115. Can be overwritten. At this time, the client 111 of the teaching terminal 110 includes overwriting information in the admission control signal transmitted to the class management server 170. Accordingly, the controller 173 of the class management server 170 creates a guide file including the overwrite information and stores the guide file in the class data storage 175. And, the client 130 of the student terminals 130, the learning data data of the teaching material container 115, the writing data of the professor already recorded in the teaching container 133 according to the overwriting information included in the guide file Overwrite Accordingly, the continuity of the class can be continued by preventing the writing of the professor's class in the query process.

4 is a signal flow diagram illustrating a query operation in the online education system of FIG. In FIG. 4, two students participating in the class will be described.

Referring to FIG. 4, first, as illustrated in FIG. 2, when a learning room is opened by a professor and two students enter the learning room and participate in a class, the control unit 173 of the class management server 170 may include: The query data storage unit 310 is allocated to the handwriting data storage area, and the query data storage unit is configured to display the link URLs of the query container 330 of the teaching terminal 110 and the query container 350 of two student terminals 130. Set to 310 (S401).

If student 1 of two students wants to inquire the professor during the class, the student 1 clicks [question] in the client 131 of the student terminal 1 130. Then, the client 131 of the student terminal 1 (130) transmits a query request signal to the class management server 170 via the network 150 (S403).

The controller 173 of the class management server 170 generates a guide file based on the query request signal received from the client 131 of the student terminal 1 130 and stores the guide file in the query data storage 310 (S405). ). Accordingly, the client 111 of the teaching terminal 110 analyzes the guide file stored in the query data storage 310 and displays the student requesting the query in the list (S407). In this case, when there are a plurality of students requesting a query, the names of the plurality of students are displayed on the list.

The professor approves the query in the client 111 by selecting a student to give an answer among the students who requested the query. Accordingly, the query approval control signal is transmitted from the client 111 of the teaching terminal 110 to the class management server 170 through the network 150 (S409). The control unit 173 of the class management server 170 generates a guide file according to the query approval control signal and stores the guide file in the class data storage unit 175 (S411).

At this time, the client 111 of the teaching terminal 110 overwrites the learning data of the learning material container 115 with the writing data already recorded in the teaching container 113 when the student is selected by the professor, The writing data already recorded in the teaching container 113 may be deleted. In this case, the client 111 of the teaching terminal 110 inserts the overwriting information into the query approval control signal and transmits it. As a result, there is no written data in the container higher than the query container 330.

As the guide file of the query approval is generated in the class data storage unit 175, the client 131 of the student terminal 1 130 analyzes the guide file of the query approval stored in the class data storage unit 175 to the student 1. It is confirmed that the approval of the query is made, and the approval of the query is displayed on the screen (S413). For example, the client 131 of the student terminal 1 130 changes the [Question] menu to [Approve inquiry].

As such, when the query application and the approval of the query are completed, the query container 350 is activated in the student terminal 1 130, and the student 1 writes the question items in the student terminal 1 130. Student 1's writing is placed and displayed in the query container 350 in student terminal 1 130 (S415), and client 131 of student terminal 1 130 connects the control information of the query writing and the query writing data to the network ( 150 is transmitted to the class management server 170 (S417).

At this time, when the overwriting is performed while the inquiry is made in the teaching terminal 110, the client 131 of the student terminal 1 130 according to the overwriting information included in the guide file of the approval of the teaching, the teaching container 133. The handwriting data already recorded in the data is overwritten with the learning material data of the learning material container 135, and the writing data existing in the teaching container 133 is deleted. Accordingly, in the student terminal 1 130, the container higher than the query container 350 is free of any writing data, and then the query answer writing data is displayed on the teaching container 133. The performance of this override applies equally to all students participating in the class, not just the students whose queries have been approved.

The control unit 173 of the class management server 170 generates a guide file according to the control information received from the student terminal 1 130, stores the guide file in the query data storage unit 310, and stores the received query writing data together. The query data storage unit 310 stores the data (S419).

When the guide file and the query writing data according to the query writing are stored in the query data storage 310, the client 111 and the student terminal of the teaching terminal 110 monitoring the query data storage 310 in real time. The client 131 of 2130 analyzes the guide file stored in the query data storage 310 to activate the query containers 330 and 350 and load the query handwriting data into the query containers 330 and 350. And display (S421). Therefore, the questions asked by the student 1 are displayed on the terminals of the professor and the student 2 as well as the student 1 who has asked the question.

After the question is displayed to the professor and the students, the professor answers the question. That is, the professor writes the question and answer to the professor terminal 110. At this time, the client of the professor terminal 111 activates the professor container 113 and displays the professor's question and answer handwriting on the professor container 113 (S423). ). At this time, the client 111 of the teaching terminal 110 transmits the professor's question and answer writing data and control information thereof displayed on the teaching container 113 to the class management server 170 through the network 150 (S425). ).

The controller 173 of the class management server 170 generates a guide file according to the control information received from the teaching terminal 110, stores the guide file in the class data storage unit 175, and stores the received question and answer writing data. The data storage unit 175 stores the data (S427).

Since the class data storage unit 175 is linked to the teaching container 133 of all student terminals 130, the guide file according to the question and answer of the professor is stored in the class data storage unit 175 as described above, and the question and answer handwriting is performed. When the data is stored, the client 131 of the student terminal 130 of the student 1 and the student 2 analyzes the guide file stored in the class data storage unit 310 and displays the question answer writing data on the professor container 133. (S429). In this case, since the priority of the teaching container 133 of the student terminal 130 is located at the highest level, the question and answer writing data is displayed at the virtual upper level.

As a result, the questions asked by the student 1 to the professor are displayed in both the professor and the student 1 and the student 2, and the contents of the professor's question and answer are displayed in the professor and the student 1 and the student 2. Student 2 did not ask a question, but student 1's question to the professor and the professor's answer to student 1's questions can be seen with student 1, so that all students can participate in the class.

After the inquiry process is finished, when the professor or student 1 clicks the [finish query] button on the clients 111 and 131 of the professor terminal 110 or the student terminal 1 130, the guidance file corresponding to the instruction data storage unit ( 175) stored in the query data storage unit 310, and the stored guidance files are analyzed by the clients 111 and 131 of the teaching terminal 110 and the student terminal 130 to remove all of the handwriting in the query container and to make a query. Deactivate the container.

5 is a view showing a schematic configuration of an online education system according to another embodiment of the present invention. In FIG. 5, the same components as in FIG. 3 include all the functions and operations of each component of FIG. 3.

The online education system according to the present embodiment with reference to FIG. 5 compared to FIG. 3 enables one-to-one learning during class. As illustrated in FIG. 5, the writing data storage area of the class management server 170 further includes a personal data storage unit 510. In addition, the teaching terminal 110 and the student terminal 130 is further provided with student containers (530, 550). In FIG. 5, the priority of each container is as shown.

The controller 173 of the class management server 170 further generates a personal data storage unit 510 in the writing data storage area when the learning room is opened by the professor. In this case, the personal data storage unit 510 generates a personal folder for the professor and a personal folder for each student.

The controller 173 of the class management server 170 controls a corresponding result from the client 131 of the teaching terminal 110 when the professor selects a student to perform one-to-one learning from the client 131 of the teaching terminal 110. Receiving a signal, and the link URL of the teaching container (113, 133) and the student container (530, 550) of the teaching terminal (110) and the student terminal (130) to perform one-to-one learning according to the received control signal, the personal data. Change to the storage unit 510.

Specifically, the control unit 173 of the class management server 170, the link URL of the teaching terminal 110 and the teaching container (113, 133) of the student terminal 130 to be one-to-one learning, class data storage unit 175 ) To the professor personal folder in the personal data storage unit 510. In addition, the control unit 173, the link URL of the student container 530, 550 of the teaching terminal 110 and the student terminal 130 to be one-to-one learning to the student personal folder of the student in the personal data storage unit 510 Set it.

Therefore, the writing data and the guidance file of the professor made in the teaching container 113 of the teaching terminal 110 are stored in the teaching personal folder in the personal data storage 510 instead of the class data storage 175. In addition, the handwriting data of the student made in the student container 550 of the student terminal 130 of the student who performs one-to-one learning and the corresponding guide file are stored in the student personal folder of the corresponding student in the personal data storage unit 510.

Since the teaching container 133 of the student terminal 130 of the student terminal other than the student doing one-to-one learning is linked to the class data storage unit 175, the writing of the professor according to one-to-one learning is different from the student other than the student doing one-to-one learning. It is not displayed on the student terminal 130 of the student. The handwriting of the student doing one-to-one learning is only displayed in the student container 530 of the teaching terminal 110.

When the client terminals 111 and 131 of the teaching terminal 110 and the student terminal 130 activate the student containers 530 and 550, the teaching data containers 115 and 135 display the writing data displayed on the teaching containers 113 and 133. Can be overwritten and the handwritten data in the teaching containers 113 and 133 can be deleted. The professor and the student may take notes while referring to the learning material data including the writing data located in the lower order learning material containers 115 and 135.

On the other hand, when the one-to-one learning is finished, the control unit 173 of the class management server 170 personalizes the link URLs of the teaching containers 110 and the teaching containers 113 and 133 of the student terminal 130 having one-to-one learning. The data storage unit 510 returns from the class data storage unit 175 again. Therefore, the professor's handwriting data stored in the class data storage unit 175 is reloaded and displayed in the teaching containers 113 and 133 of the teaching terminal 110 and the student terminal 130 having one-to-one learning, thereby ensuring continuity of the class. do.

6 is a signal flow diagram illustrating one-to-one learning in the online education system of FIG. 5.

Referring to FIG. 6, first, as illustrated in FIG. 2, when a learning room is opened by a professor and two students enter the learning room and participate in a class, the control unit 173 of the class management server 170 may include: The personal data storage unit 510 is allocated to the handwritten data storage area together (S601). In detail, the personal data storage unit 510 generates a professor personal folder and a student-specific personal folder.

If the professor wants to perform one-to-one learning on a particular student, the teacher selects a corresponding student from the client 111 of the professor terminal 110 and requests one-on-one learning (S603). Therefore, the client 111 of the teaching terminal 110 transmits a one-to-one learning request signal including the information of the student selected by the professor to the class management server 170 through the network 150 (S605).

The control unit 173 of the class management server 170 that has received the one-to-one learning request signal receives the link URL of the teaching container 113 on the professor side and the teaching container 133 on the student side for one-to-one learning. In step 175, the personal data storage unit 510 changes to a teaching personal folder. In addition, the link URL of the student container 550 of the student side to the one-to-one study with the professor side is set to the student personal folder of the student to perform one-to-one study in the personal data storage unit 510 (S607). .

After setting the link URLs of the faculty container and the student container in this way, the control unit 173 of the class management server 170 learns one-to-one through the network 150 to the student terminal 130 of the student whose professor requested one-to-one learning. The notification signal is transmitted (S609). The client 131 of the student terminal 130 outputs a pop-up notifying one-to-one learning or outputs an indicator to inform that the one-to-one learning has started.

Thereafter, the professor starts writing for one-to-one learning in the teaching terminal 110. The client 111 of the professor terminal 110 activates the professor container 113 according to the professor's input, deletes the writing already recorded in the professor container 113, and writes the professor's handwriting for one-to-one learning. And display (113). In addition, the client 111 of the teaching terminal 110 transmits one-to-one learning writing data and control information thereof to the class management server 170 through the network 150 (S613).

The controller 173 of the class management server 170, which has received one-to-one learning handwriting data and control information of the professor through the network 150, according to the link URL of the professor container 113, the professor in the personal data storage unit 510. The professor's one-to-one learning handwriting data and guide files are stored in a personal folder (S615).

As the one-to-one learning handwriting data and the guidance file are stored in the professor's personal folder in the personal data storage unit 510, the client 131 of the student terminal 130 who performs one-to-one learning linked to the professor's personal folder may receive the guidance. The file is analyzed and the one-to-one learning handwriting data is displayed on the teaching container 133 (S617). Since the terminals of the students other than the student doing one-to-one learning are not linked to the professor personal folder in the personal data storage unit 510, the professor's one-to-one learning writing is not displayed to other students.

On the other hand, the student who sees the writing of the professor can write to the student terminal 130 to query the professor. The client 131 of the student terminal 130 activates the student container 550 and displays the student's handwriting in the student container 550 (S619). The client 131 of the student terminal 130 transmits the student's handwriting data and control information to the class management server 170 through the network 150 (S621). At this time, when the client 131 of the student terminal 130 activates the student container 550, the client 131 overwrites the writing data displayed in the teaching container 133 with the learning material data of the learning material container 135, and the teaching container. The handwritten data at 133 is deleted. The student may take notes while referring to the learning material data including the writing data located in the lower order learning material container 135.

The control unit 173 of the class management server 170 that has received the student's handwriting data and control information sends the student's handwriting data and the guidance file according to the control information according to the link URL to the corresponding student in the personal data storage unit 510. Save in the student personal folder (S623). Accordingly, the client 111 of the teaching terminal 110 analyzes the guide file stored in the student personal folder according to the link URL and displays the writing data in the student container 530 (S625). In this case, when the client 111 of the teaching terminal 110 activates the student container 530, the client 111 overwrites the writing data displayed in the teaching container 113 with the learning data data of the learning material container 115, and the teaching container 110. The handwritten data in (113) is deleted. The professor may take notes while referring to the learning material data including the writing data located in the lower order learning material container 115.

In this way, during the lesson, the professor may select a specific student and perform one-on-one learning. The link URLs of the professor container 113 on the professor side and the professor container 133 on the student side are changed to the professor personal folders in the personal data storage unit 510 instead of the class data storage unit 175 shared by all students. The professor's handwriting data is only visible to students doing one-on-one learning. In addition, the link URLs of the student container 530 on the professor side and the student container 550 on the student side are set to the student personal folder of the corresponding student, so that other students cannot see the handwriting of the student doing one-on-one learning, and only the professor Only the student's notes can be seen. Therefore, one-on-one learning is possible during class.

On the other hand, when the one-to-one learning is finished, the control unit 173 of the class management server 170 personalizes the link URLs of the teaching containers 110 and the teaching containers 113 and 133 of the student terminal 130 having one-to-one learning. The data storage unit 510 returns from the class data storage unit 175 again. Therefore, the professor's handwriting data stored in the class data storage unit 175 is reloaded and displayed in the teaching containers 113 and 133 of the teaching terminal 110 and the student terminal 130 having one-to-one learning, thereby ensuring continuity of the class. do.

7 is a view showing a schematic configuration of an online education system according to another embodiment of the present invention. In FIG. 7, the same components as those of FIG. 5 include all the functions and operations of each component of FIG. 5.

The online education system according to the present embodiment with reference to FIG. 7 in comparison with FIG. 5 enables an online test. As illustrated in FIG. 7, the test data storage unit 710 is further included in the writing data storage area of the class management server 170. In addition, the learning data storage area of the class management server 170 further includes a test data storage unit 730.

The control unit 173 of the class management server 170 further generates the test data storage unit 710 in a writing data storage area when the learning room is opened by a professor, and also stores the test data in the learning data storage area. Further generates the section 730. The test data storage unit 710 includes a teaching test data folder and a student-specific test data folder. In addition, a folder for each student is included in the teaching test data folder.

The professor uploads test data from the client 111 of the teaching terminal 110 to the class management server 170. When the professor selects the test data stored in the storage medium of the teaching terminal 110, the client 111 transmits the selected test data to the class management server 170 through the network 150. The controller 173 of the class management server 170 stores the received class data in the test data storage 730.

The professor may select a test item menu from the client 111 of the teaching terminal 110, and the control signal is transmitted to the class management server 170 through the network 150.

When the control signal related to the test is received from the teaching terminal 110, the control unit 173 of the class management server 170 receives the link URLs of the teaching and student learning material containers 115 and 135 from the learning data storage unit 177. The test data storage unit 730 is changed from.

In addition, when the control signal related to the test is received from the teaching terminal 110, the control unit 173 of the class management server 170 stores the link URLs of the teaching containers 113 and 133 of the teaching and student classes data storage unit ( 175 to the test data storage unit 710 in the writing data storage area. Specifically, the instruction data folder in the test data storage unit 710 is changed. In particular, the student's teaching container 133 is changed to each corresponding student folder in the teaching test data folder.

In addition, when the control signal related to the test is received from the teaching terminal 110, the control unit 173 of the class management server 170 stores the link URLs of the teaching and student student containers 530 and 550 in the writing data storage area. The personal data storage unit 510 of the test data storage unit 710 is changed. In detail, the test data folder of the student in the test data storage 710 is changed. In particular, the student's student container 550 is changed to the student's student test data folder.

The client 131 of the student terminal 130 displays the test data stored in the test data storage 730 in the learning data storage area of the class management server 170 on the learning material container 135. Similarly, the client 111 of the teaching terminal 110 displays the test data stored in the test data storage unit 730 in the learning data storage area of the class management server 170 on the learning material container 115.

When the test material is displayed in the learning material container 135 of each student, the students look at the displayed test material and solve the test questions and write the student terminal 130. The client 131 of the student terminal 130 The student container 550 is activated to place the student's handwriting on the student container 550 for display.

In addition, the handwriting data and control information regarding the student's correct answer displayed on the student container 550 are transmitted to the class management server 170 through the network 150, and the controller 173 of the class management server 170 is The guide file according to the received writing data and control information is stored in the student test data folder of the corresponding student in the test data storage unit 710. In other words, the written data regarding the test answer of each student is stored in the student test data folder of each student.

The professor marks the correct answer at the end of the test. When the professor selects a specific student from the client 111 of the professor terminal 110, the client 111 accesses the student test data folder of the corresponding student using the link URL according to the selected student's information, The writing data is loaded according to the guide file stored in the student test data folder and displayed on the student container 530 of the teaching terminal 110. As such, when the professor selects a specific student, the writing data stored in the test data folder of the corresponding student is displayed in the student container 530 of the professor.

Accordingly, the test material is displayed in the teaching material learning container 115, and the student's correct answer writing is displayed in the student container 530. The student container 530 has a higher priority than the learning material container 115. The student's answer is superimposed on the test question.

The professor writes the grading on the teaching terminal 110 to score the student's correct answer, and the client 111 of the teaching terminal 110 activates the teaching container 113 to write the grading of the professor. To display). The client 111 transmits the control information and the professor's scoring handwriting data to the class management server 170, and the class management server 170 transmits the guide file according to the control information and the professor's scoring handwriting data to the test data storage unit 710. ) My Faculty Test Data folder, specifically the corresponding Student folder under the Faculty Test Data folder.

The link URL of the teaching container 133 of the student terminal 130 is a corresponding student folder under the teaching test data folder in the test data storage 710, specifically, the teaching test data folder, and is a client of the student terminal 130. In operation 131, the grading data of the professor stored in the teaching test data folder is displayed on the teaching container 133. As a result, each student will be able to see his or her grades.

When viewing the test scoring results in the student terminal 130, the test question image file is displayed in the learning material container 135, the student problem pool writing data is displayed in the student container 550, the professor container 133 The professor's correct scoring handwriting data is displayed. Accordingly, the client 131 of the student terminal 130 writes the pixel data of the test question image file displayed on the learning material container 135 and the student's problem solving displayed on the student container 550 according to a user's instruction. The pixel data of the professor's correct scoring handwriting data displayed in the professor container 133 is superimposed to generate new pixel data, and then the generated pixel data is assigned to the corresponding pixel data of the test question file which is a bitmap object. Replace. The client 131 removes the writing objects displayed on the student container 550 and the teaching container 133. That is, since the writing data displayed on the student container 550 and the teaching container 133 is removed, the memory and system resources occupied by the corresponding pixel data are reduced.

8 is a signal flow diagram illustrating a process of taking an exam in the online education system of FIG. 7.

Referring to FIG. 8, first, as shown in FIG. 2, when a learning room is opened by a professor and a student enters the learning room and participates in a class, the control unit 173 of the class management server 170 may write the writing data. The test data storage 710 is further allocated to the storage area, and the test data storage 730 is further allocated to the learning data storage area (S801). At this time. The controller 173 generates a teaching test data folder and a student-specific test data folder in the test data storage 710, and generates a student-specific folder in the teaching test data folder.

On the other hand, the professor uploads the test data stored in the storage medium of the teaching terminal 110 to the class management server 170 through the client 111 (S803). The controller 173 of the class management server 170 stores the test data received from the teaching terminal 110 in the test data storage 730 in the learning data storage area (S805).

The professor can then test the students in the class. The professor selects a test view menu from the client 111 of the teaching terminal 110, and accordingly, the client 111 transmits a test start request signal to the class management server 170 through the network 150 (S807). ).

The control unit 173 of the class management server 170 receiving the test start request signal receives the link URLs of the teaching and student learning material containers 115 and 135 from the learning data storage unit 177 in the test material storage unit 730. To). In addition, the control unit 173 of the class management server 170, the test data storage unit 710 in the writing data storage area from the class data storage unit 175 to the link URL of the teaching container (113, 133) of professors and students Change to Specifically, the instruction data folder in the test data storage unit 710 is changed. In particular, the student's teaching container 133 is changed to each corresponding student folder in the teaching test data folder. In addition, the control unit 173 of the class management server 170 uses the link URLs of the student containers 530 and 550 of the professor and student from the personal data storage unit 510 of the writing data storage area to the test data storage unit 710. Change to In detail, the test data folder of the student in the test data storage 710 is changed. In particular, the student container 550 of the student is changed to the corresponding student test data folder (S809).

As the link URL is changed as described above, the client 131 of the student terminal 130 of the students loads the test data stored in the test data storage 730 and displays it on the learning material container 135 (S811). Therefore, the student terminal 130 of the student disappears the previously displayed class material and the test material is displayed instead.

After the test data is displayed on the student terminal 130 as described above, the students look at the displayed test data to solve the test questions and write the correct answer to the student terminal 130. The client 131 of the student terminal 130 activates the student container 550 to display the correct answers of the students in the student container 550 (S813). Since the student container 550 has a higher priority than the learning material container 135, it appears that the student's correct answer is written on the learning material from the user's perspective.

When the student's correct answer is made in this way, the client 131 of the student terminal 130 transmits the correct answer data and the control information to the class management server 170 through the network 150 (S815), and class management. The controller 173 of the server 170 generates a guide file according to the received control information and stores the guide file along with the correct answer data in the student test data folder in the test data storage unit 710 (S817). As described above, there is a student-specific test data folder, and the correct answer data and guide files of each student are stored in the student test data folder of the corresponding students.

After the student's correct handwriting data is saved, the professor then scores the test results for each student. The professor selects a student to be scored in the client 111 of the teaching terminal 110, and accordingly, the client 111 writes the student's correct answer according to the guide file stored in the test data folder of the selected student. (S819). Since the test material is located in the learning material container 115 of the teaching terminal 110, and the student container 530 has a higher priority than the learning material container 115, it appears that the student's correct answer is written on the test material.

The professor starts to take notes for scoring while viewing the correct answer displayed on the learning material container 115, and the professor terminal 110 activates the professor container 113 when the professor starts to write the corresponding notes for the professor. It is located in the container 113 and displayed (S821).

The client 111 of the teaching terminal 110 transmits the grading data of the professor and the corresponding control information to the class management server 170 via the network 150 (S823), and controls the class management server 170. In operation 1825, the guide file according to the received control information is generated and the scoring handwriting data is stored in the teaching test data folder in the test data storage 710 (S825). In detail, the controller 173 stores the guide file and the scoring handwriting data in the corresponding student folder under the teaching test data folder.

After the grading handwriting data is stored in this way, the student can check his or her grading result. The client 131 of the student terminal 130 analyzes the guide file stored in the corresponding student folder under the teaching test data folder, loads the scoring handwriting data, and displays the grading data in the teaching container 133 (S827). In the student terminal 130, since the learning material container 135 has the lowest priority, the teaching container 133 has the highest priority, and the student container 550 has the middle priority, the student's correct answer is written on the test material. The teacher's grading notes appear to have been written by the student.

The student can perform the overwrite function after viewing the test scoring results. The test question image file is displayed in the learning material container 135, the problem solving handwriting data of the student is displayed in the student container 550, and the professor's correct scoring handwriting data is displayed in the professor container 133. Accordingly, the client 131 of the student terminal 130 writes the pixel data of the test question image file displayed on the learning material container 135 and the student problem solving displayed on the student container 550 according to the student's instruction. The pixel data of the professor's correct scoring handwriting data displayed in the professor container 133 is superimposed to generate new pixel data, and then the generated pixel data is assigned to the corresponding pixel data of the test question file which is a bitmap object. Replace. The client 131 removes the writing objects displayed on the student container 550 and the teaching container 133. That is, since the writing data displayed on the student container 550 and the teaching container 133 is removed, the memory and system resources occupied by the corresponding pixel data are reduced.

Meanwhile, sizes or resolutions of the display devices of the teaching terminal 110 and the plurality of student terminals 130 may not be the same. In the classroom environment having the same terminal model, the size and resolution of the display device of the teaching terminal 110 and the plurality of student terminals 130 may be the same, but it is not easy to match in an online structure consisting of an unspecified number. For example, the screen size of the display device of the professor terminal 110 is 20 inches, whereas the screen sizes of the plurality of student terminals 130 vary from 17 inches, 13 inches, 10 inches, 7 inches, and 3.5 inches. You can think of

As such, when the screen size of the student terminal 130 is smaller than the screen size of the teaching terminal 110, the client 131 of the student terminal 130 is configured of the screen displayed in accordance with the screen size of the student terminal 130 Elements (learning data data, handwriting data, etc., displayed in the container) may be reduced and displayed according to the screen size of the student terminal 130. However, the elements of the screen that are displayed too small will decrease the readability of the students and increase the eye fatigue and reduce the motivation for learning. Accordingly, the client 131 of the student terminal 130 may reduce and display the components of the screen only to the extent that does not reduce eye readability without degrading readability.

By the way, in the case where the size of the student terminal 130 is not reduced to a larger size than the screen size, the writing data of the professor generated by the client 111 of the professor terminal 110 is the student terminal. It may be displayed out of the screen range of 130. Of course, the student can scroll through the screen by using the scrolling function to find the handwriting data, but such a series of actions lowers the concentration of learning and the effect of learning.

Therefore, when the screen size of the student terminal 130 is smaller than the screen size of the teaching terminal 110, the most recently generated handwriting data in the teaching terminal 110 may always be displayed within the screen range of the student terminal 130. Should be available. This will be described below with reference to FIGS. 9 and 10.

9 is a view illustrating a process of moving a container in a teaching terminal according to an embodiment of the present invention, Figure 10 is a process of moving a container in conjunction with the teaching terminal in a student terminal according to an embodiment of the present invention It is a figure explaining.

The client 111 of the teaching terminal 110 may have a width and a height of a larger screen size in consideration of the minimum screen size or the degree of reduction of the plurality of student terminals 130 on the screen of the teaching terminal 110. height) is set to match the center point of the rectangle with the center point on the screen of the teaching terminal 110. That is, the virtual quadrangle means an area displayed on the student terminal 130, and the center of the screen of the teaching terminal 110 coincides with the center of the screen of the student terminal 130. Such virtual rectangles may or may not be visible to the user.

The client 111 of the teaching terminal 110 has an X- and Y-coordinate value at the time when the writing of the professor starts in the teaching container 113, that is, at the time of pen down. If it is out of range, the teaching container 113 is moved so that the pen down point is located at the left top coordinate point of the virtual rectangle. Alternatively, the client 111 of the teaching terminal 110 moves the teaching container 113 such that the pen-down point is located at the center of the virtual rectangle, that is, the center of the screen of the teaching terminal 110. At this time, the client 111 of the teaching terminal 110 simultaneously moves all containers displayed on the screen, such as the learning material container 115, the query container 330, and the student container 530.

The client 111 of the teaching terminal 110 may move the container as described above at the start of the writing of the professor, or may move the container at the end of the writing of the professor, that is, at the time of pen up. . The client 111 of the teaching terminal 110 includes the movement information of the container in the control information and transmits it to the class management server 170.

9 and 10 will be described in detail with an example. 9 is an example of a screen of the teaching terminal 110. As shown in FIG. 9A, the teaching container 113 is located in the display apparatus 910 of the teaching terminal 110, and the virtual rectangle is shown in FIG. 950 is located at the center of the screen in the display device 910. The professor writes "X + Y = 3" in the teaching container 113 of the teaching terminal 110. In this case, reference numeral 970 is a starting point of handwriting.

When writing is finished after writing "X + Y = 3", that is, at the time of pen-up, the client 111 of the teaching terminal 110 moves to the writing start point ((b) of FIG. 9). 970 moves the teaching container 930 so that it is located at the upper left of the virtual rectangle 950. Therefore, the professor's writing data "X + Y = 3" is located at the upper left portion of the virtual rectangle 950.

10 is an example of a screen of the student terminal 130. 10 (a) is a state in which writing of a professor is not made and there is no movement of a container, the display device 101 of the student terminal 130 is smaller in size than the display device 910 of the teaching terminal 110. Accordingly, the teaching container 1030 of the student terminal 130 is larger than the display device 101 of the student terminal 130, and only a part of the teaching container 133 is displayed on the screen. In addition, the size of the display device 110 of the student terminal 130 and the size of the virtual rectangle is the same.

As described with reference to FIG. 9, when the professor writes and the professor container 930 of the professor moves, the guide file is stored in the class management server 170 and the client 131 of the student terminal 130 is provided. ) Moves the teaching container 1030 on the student's side to the lower left side in accordance with the guide file to place the writing data of the professor in the teaching container 1030. Accordingly, as shown in FIG. 10 (b), the professor's writing data “X + Y = 3” is located at the upper left of the screen of the student terminal 130, and the student's recent writing of the professor without any manipulation. You will see.

In this way, when the screen size of the professor and the screen size of the student is different, the container is moved according to the position of the professor's writing, so that the students can see the professor's writing on the screen without any manipulation, and the learning is not impaired. The effect can be enhanced.

The process of storing the method according to the present invention on a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) can be easily carried out by those skilled in the art. Therefore, it will not be described in detail any more.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

Claims (26)

1. As an online education system through a network,

   A professor for driving a first teaching container and a first learning material container having different priorities of perspective depths to locate and display learning material data in the learning container, and to place and display the writing data of the professor in the teaching container. terminal;

   Connected to the teaching terminal through the network, generates a lesson data storage unit and a learning data storage unit according to the connection of the teaching terminal, receives the learning data data from the teaching terminal, and stores the learning data data in the learning data storage unit; A class management server configured to receive writing information of the professor and store the class data in the class data storage unit; And

   A second teaching container and a second learning material container connected to the class management server through the network and having different priorities of depths of perspective are driven to display the learning material data stored in the learning data storage of the class management server. At least one student terminal that is received and positioned in the second learning material container and displayed, the writing data of the professor stored in the class data storage unit is located in the second teaching container and displayed; .
2. The method of claim 1,

   The teaching terminal,

   Generate a screen coordinate value in which the pen is moved from the initial point to the end point by using the point of time when the pen of the professor is down for writing as an initial point and the point of time when the pen is up. On-line education system, characterized in that for transmitting the generated screen coordinate value as handwriting data to the class management server when the pen up.
3. The method of claim 1,

   The teaching terminal transmits the control information and writing data defining the behavior of the teaching to the class management server,

   The class management server generates a guide file according to the control information and stores the guide file along with the handwriting data in the class data storage unit.

   The student terminal, on the basis of the guide file stored in the class data storage unit on-line education system, characterized in that for displaying the writing data stored in the class data storage unit in the second teaching container.
4. The method of claim 1,

   The student terminal,

   Generating new pixel data by overwriting the pixel data of the writing data displayed on the second teaching container and the learning data data displayed on the second learning material container at a position corresponding thereto, in consideration of the transparency value; Then replace the new pixel data with the corresponding existing pixel data of the learning material data, and perform an overwrite function of removing the writing data displayed in the second teaching container.
5. The method of claim 4, wherein

   The student terminal,

   And checking the memory usage of the terminal to perform the overwrite function when a memory usage above a predetermined threshold is detected.
6. The method of claim 4, wherein

   The student terminal,

   And displaying the writing data on the second teaching container, wherein the overwriting function is performed when only pen down and up occur without moving the pen.
7. The method of claim 4, wherein

   The student terminal,

   And performing the overwrite function when the page of the learning material data displayed in the second learning material container is changed.
8. The method of claim 1,

   The student terminal drives the second query container and the second query container having different priorities of depths of perspective from the second teaching container and the second learning material container to locate and display student handwriting data of the student and transmit the query handwriting data. ,

   The class management server may further include a query data storage unit to store query writing data received from the student terminal in the query data storage unit.

   The teaching terminal drives the first query container and the first query container having a different priority of the depth of perspective from the first teaching container and the first learning material container, and receives the query writing data from the class management server to receive the first query. An online education system comprising displaying query handwriting data in a container.
9. The method of claim 8,

   The faculty terminal and the student terminal, at the time when the faculty's query approval for a specific student's query request is made, the handwriting data displayed on each of the first and second teaching containers are displayed on each of the first and second learning material containers. An online education system comprising overwriting data data and deleting handwritten data displayed on the first and second professor containers.
10. The method of claim 1,

    When the teaching terminal selects one of the at least one student terminal as one-to-one learning object by a professor, the first student having a different priority of depth of perspective from the first teaching container and the first learning material container is different. Activate the container and send control information accordingly,

    The student terminal selected as the object of one-to-one learning activates a second student container having a different priority in depth of perspective from the second teaching container and the second learning material container as selected as the object of one-to-one learning.

    The class management server may further include a personal data storage unit including a personal folder of a professor and a personal folder of each student, and the link URLs of the first and second student containers for one-to-one learning as the student receives the control information. An online education system, characterized in that it is set as a personal folder of a one-to-one student among personal folders, and the link URL of the first professor container is changed from the class data storage unit to the professor personal folder.
11. The method of claim 10,

    When learning one-on-one,

    The class management server,

    The one-to-one handwriting data of the professor is stored in the second professor container of the student terminal of the one-to-one learning by receiving one-to-one handwriting data of the professor displayed on the first professor container of the teaching terminal and storing the same in the professor personal folder. To be displayed,

    The one-to-one handwriting of the student in the first student container of the teaching terminal by receiving one-to-one handwriting data of the student displayed in the second student container of the one-to-one learning terminal from the corresponding student terminal and storing the data in the personal folder of the one-to-one student. Online education system, characterized in that the data to be displayed.
12. The method of claim 1,

    The teaching terminal generates a virtual rectangle on the screen, and moves the first teaching container so that the writing data of the professor is located within the virtual rectangle when the writing data of the professor made in the first teaching container is out of the virtual rectangle. Let's

    The student terminal moves the second teaching container in response to the movement of the first teaching container in the teaching terminal.
13. The method of claim 12,

    The teaching terminal,

    And when the writing start point of the professor is out of the virtual rectangle, the first teaching container is moved so that the writing start point is located at the upper left of the virtual rectangle at the end of the writing.
14. The method of claim 1,

    The teaching terminal includes a first student container having a priority different from a depth of perspective with the first teaching container and the first learning material container,

    The at least one student terminal includes a second student container having a different priority level of perspective from the second teaching container and the second learning material container,

    The class management server further includes a test data storage unit having a teaching test data folder (having a student-specific folder as a subdirectory), a test data folder for each student, and a test data storage unit for storing test data data.

    The class management server,

    Change the link URLs of the first and second learning material containers from the learning data storage part to the test material storage part according to the test-related control information received from the teaching terminal;

    Further, the link URL of the second student container is set to a student-specific test data folder of a corresponding student, the link URL of the second professor container is changed to a corresponding student-specific folder in the professor test data folder,

    In addition, the link URL of the first teaching container is selectively changed to any one of student-specific folders in the teaching test data folder, and the link URL of the first student container is selectively set to any one of the student-specific test data folders. Online education system, characterized in that.
15. The method of claim 14,

    Test data stored in the test data storage unit is displayed on the first and second learning material containers.

    The correct answer handwriting data of the student performed in the second student container is stored in the student-specific test data folder of the corresponding student and displayed in the first student container according to the professor's student selection.

    In addition, scoring handwriting data performed on the first professor container according to a professor's student selection is stored in a student-specific folder of a corresponding student in the professor test data folder, and the scoring handwriting data is stored in a first professor container of a corresponding student. Online education system, characterized in that is displayed.
16. A communication terminal of a faculty side, which is connected via a network with at least one student terminal communication terminal having a first teaching container and a first learning material container having different priorities of principal depth, to provide an online education service.

    A client having a second teaching container and a second learning material container having a different priority of perspective depth, wherein the second teaching container has a higher priority than the second learning material container,

    The second teaching container is synchronized with the first teaching container so that the actions in the second teaching container are reflected in the first teaching container,

    The second learning material container is synchronized with the first learning material container so that the action in the second learning material container is reflected in the first learning material container.

    The client,

    A communication terminal for positioning learning data data in the second learning material container and displaying, and writing professor's writing data in the second teaching container.
17. The method of claim 16,

    The client,

    A screen in which the pen moves from the initial point to the end point with an initial point of time when the pen of the professor is down for writing in the second professor container as an initial point and an end point of the time of the pen up. And generating a coordinate value and transmitting the generated screen coordinate value as handwriting data when the pen is up.
18. The method of claim 16,

    The client,

    Generating new pixel data by overwriting the pixel data of the writing data displayed on the second teaching container and the learning data data displayed on the second learning material container at a position corresponding thereto, in consideration of the transparency value; And replace the new pixel data with the corresponding existing pixel data of the learning material data, and perform an overwrite function of removing the writing data displayed in the second teaching container.
19. The method of claim 18,

    The client,

    And checking the memory usage of the terminal to perform the overwrite function when a memory usage above a predetermined threshold is detected.
20. The method of claim 18,

    The client,

    And displaying the writing data on the second teaching container, wherein the overwriting function is performed when only pen down and up occur without moving the pen.
21. The method of claim 18,

    The client,

    And performing the overwrite function when the page of the learning material data displayed in the second learning material container is changed.
22. The method of claim 16,

    The at least one student terminal communication terminal further includes a first query container having a different priority of the depth of perspective from the first teaching container and the first learning material container, and writing a query of a student in the first query container. To locate and display data,

    The client,

    The second teaching container and the second learning material container and the priority of the depth of perspective is different, and further comprising a second query container synchronized to the first query container, and the query handwriting data displayed on the first query container And display it in a second query container.
23. The method of claim 22,

    The client,

    At the time when the professor's query approval for the student's query request is input, the writing data displayed in the second teaching container is overwritten with the learning data data displayed in the second learning material container and the writing data displayed in the second teaching container Communication terminal, characterized in that for deleting.
24. The method of claim 16,

    The client,

    And creating a virtual rectangle on the screen and moving the second teaching container so that the writing data of the professor is located in the virtual rectangle when the writing data of the professor in the second teaching container is out of the virtual rectangle. Communication terminal.
25. The method of claim 24,

    The client,

    And when the writing start point of the professor is out of the virtual rectangle, moving the second teaching container so that the writing start point is located at the upper left or the center of the virtual rectangle at the end of the writing.
26. The method of claim 24,

    The client,

    And when moving the second teaching container, simultaneously move the second learning material container.

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