KR20200129262A - Apparatus for Learning Service Having Query by Moving Picture and Driving Method Thereof - Google Patents

Abstract

The present invention relates to a learning service device capable of video query and a driving method thereof. According to an embodiment of the present invention, the learning service device capable of video query can comprise: a storage part that matches frame information related to a unit frame video of each of sections obtained by dividing a predetermined video into a plurality of sections with a video and stores the same therein; and a control part that matches a query video and the video based on the stored frame information and stores the same in the storage part when a student includes a learning related query of the video in the video and provides the same as the query video, and notifies a terminal device of a lecturer of the query.

Description

Learning service device capable of querying video and its driving method {Apparatus for Learning Service Having Query by Moving Picture and Driving Method Thereof}

The present invention relates to a learning service device capable of querying a video and a method of driving the device, and more particularly, when a learner is learning a video, if there is a query, a video query in which a learner queries a video and receives an answer from the instructor. It relates to a possible learning service device and a driving method of the device.

Recently, in each school or digital (cyber) university, it has become common to provide school lectures as videos. Students who take this video lecture will inquire to professors in charge through a bulletin board or e-mail if they have any questions during the video lecture (or taking a lecture), and the professors are also forced to answer through the bulletin board or e-mail.

However, the conventional question and answer method has to be written more verbosely than verbally in the case of inquiries through e-mail, compared to actual inquiries and answers during offline lectures, and the intention of the question is not clearly communicated to the other party. There is.

Korean Registered Patent Publication No. 10-0593837 (2006.06.20) Korean Patent Application Publication No. 2002-0000971 (2002.01.09) Korean Patent Application Publication No. 10-2014-0117170 (2014.10.07)

An object of the present invention is to provide a learning service device capable of querying a video, and a method of driving the device, in which a learner makes a video query and receives an answer from an instructor when a learner has a query.

A learning service apparatus capable of querying a video according to an embodiment of the present invention includes a storage unit for matching and storing frame information related to a unit frame image of each section divided into a plurality of sections of a designated video, and a learner When the query content related to the learning content of the video is included in a captured image and provided as a query image, the query image is matched with the video based on the stored frame information and stored in the storage unit, and a query is made to the instructor's terminal device. It includes a control unit for notifying the fact.

When the query image is provided during the playback of the moving picture, the controller may match and store the query image with the moving picture based on time information and the frame information of the reproduced moving picture.

When the query image is provided, the controller may match and store the query image with the video based on input information provided by the learner and the frame information.

The control unit may receive response contents in the form of a video, e-mail, or text message from the instructor based on the fact of the inquiry, and may match and store the inquiry image.

When another learner plays the video, the controller may display the query image and the answer content stored in matching with the video on the screen.

The controller may notify the existence of the query image and the answer content on the screen, and display the query image and the answer content on one side of a video playback screen when a confirmation request is made.

In addition, the driving method of a learning service device capable of querying a video according to an embodiment of the present invention is a learning service device capable of querying a video, including a storage unit and a control unit, in which a designated video is divided into a plurality of sections. Matching frame information related to a frame image with the moving picture and storing it in the storage unit, and when a learner provides the query content related to the learning content of the moving picture as a query image, the control unit stores the stored And matching the query image with the video based on frame information, storing the query image in the storage unit, and notifying the query fact to the instructor's terminal device.

When the query image is provided during the playback of the moving picture, the controller may match and store the query image with the moving picture based on time information and the frame information of the reproduced moving picture.

When the query image is provided, the controller may match and store the query image with the video based on input information provided by the learner and the frame information.

The control unit may receive response contents in the form of a video, e-mail, or text message from the instructor based on the fact of the inquiry, and may match and store the inquiry image.

When another learner plays the video, the controller may display the query image and the answer content stored in matching with the video on the screen.

The controller may notify the existence of the query image and the answer content on the screen, and display the query image and the answer content on one side of a video playback screen when a confirmation request is made.

According to an embodiment of the present invention, compared to the conventional method of querying phrases through a bulletin board or e-mail, when a learner has a query while learning a video, it is possible to make a verbal query as in an offline lecture. The content will be able to be accurately communicated to the instructor.

In addition, learning efficiency can be enhanced by being able to receive accurate answers from the instructor according to the video query.

1 is a diagram showing a learning service system according to an embodiment of the present invention;
2 is an exemplary layout diagram of a video screen played by a second learner;
3 is a block diagram illustrating a detailed structure of the learning service device of FIG. 1;
4 is a diagram showing a learning service process according to an embodiment of the present invention, and
5 is a flowchart showing a driving process of the learning service device of FIG. 1.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1 is a diagram showing a learning service system according to an embodiment of the present invention, and FIG. 2 is an exemplary layout of a video screen played by a second learner.

As shown in Fig. 1, the learning service system 90 according to the embodiment of the present invention is a learning service system capable of querying a video, and includes a learner terminal device 100, an instructor terminal device 110, and a communication network 120. And a part or all of the learning service device (or a learning service device capable of querying a video) 130.

Here, "including some or all" means that some components such as the communication network 120 are omitted so that the terminal devices 100 and 110 and the learning service device 130 perform direct communication (eg, P2P communication), or A part or all of the learning service device 130 is meant to be integrated and configured in a network device (eg, a wireless switching device, etc.) constituting the communication network 120, and all in order to help a sufficient understanding of the invention It is described as including.

The learner terminal device 100 includes an image display device such as a desktop computer, a laptop computer, a tablet PC, a smart phone, and a smart TV, and further includes peripheral devices such as artificial intelligence (AI) speakers interlocked therewith. In addition, the learner's terminal device 100 may further include a wearable device such as Galaxy*U of S company in Korea. In this way, the learner terminal device 100 may include various devices that can be used for learning.

The learner's terminal device 100 may perform learning through a learning video provided by the learning service device 130 or proceed with a query related to the learning content at the time when the learning is completed, through video recording. Above all, a learner using the learner terminal device 100 may perform various operations for generating a photographed image for a query, that is, a query image. For example, to generate a query image by clicking a button such as "Question" displayed on one side of the screen while playing a video through the learner terminal device 100 or uttering a voice When the screen pops up, a query image for a video may be generated through this and provided to the learning service device 130. In other words, when a button for generating a query image is selected, a UI window automatically appears on the screen. At this time, by clicking the run button, the camera can be operated to take an image.

Alternatively, when the video is played, the learner terminal device 100 may display additional information or frame information for each section of the video on one side of the playback screen. For example, when the running time of the entire video is 50 minutes, each section may be divided based on time, but may be divided based on a specific subject of the video. It is preferable that the entire video is divided into a plurality of sections according to the content of the video, but since each section has frame information (eg, keyword information), the information can be displayed on the screen. Therefore, the learner can record in a separate window that generates a query image based on the frame information of a specific section, attach a video, and transmit it to the learning service device 130, but when selecting specific frame information from the list of frame information, A pop-up window may open to automatically take pictures as shown. Through this, the query image is generated and transmitted.

As described above, the learner terminal device 100 may perform an operation for generating a query image in various forms during or after the playback of the video is completed. For example, if it is generated during playback, the transmission of the query image is completed. If so, the video can be played continuously. As described above, according to an embodiment of the present invention, a method of generating and transmitting a query image may be various, and this may be variously changed according to the intention of the system designer. Therefore, in the embodiment of the present invention, I will not limit it. However, it is clear that the learner can use the query image in the form of a video in relation to the learning content of the video in the process of learning the video.

Like the learner terminal device 100, the instructor terminal device 110 includes various types of devices. When there is an inquiry from a learner about a video related to his or her lecture, the instructor terminal device 110 may be notified of the fact from the learning service device 130, and may provide an answer based on the fact. In the case of the instructor terminal device 110, it is possible to provide a photographed image by photographing contents related to the answer when answering, but the instructor is not particularly limited thereto. In other words, the response video may be in the form of any one of a video, an email, and a text message.

For example, when there is a query from a learner regarding a video, the instructor may receive URL information for accessing the query video while being notified of the fact. The instructor can check the query video by selecting the corresponding URL information. In addition, answers can be processed in various forms, such as clicking the "Answer" button on the screen or uttering a voice for the checked query image. For example, if there is a response by e-mail or a text message, the response is processed through this. Emails and text messages could be done by clicking on a link.

In this way, when an answer is made through the instructor terminal device 110, the learning service device 130 can already know what kind of question the answer is to, so it matches the stored query image and stores it as an answer. In other words, for example, information on the transmission side is transmitted as additional information in a data packet, and received again, so that it is possible to know which transmission packet is received data. In the case of instructors, as they are experts related to their own learning, they have superior communication skills compared to learners. Therefore, it is desirable to make full use of the instructor's disposition and answer them.

The communication network 120 includes all wired and wireless communication networks. For example, as the communication network 120, a wired or wireless Internet network may be used or interlocked. Here, the wired network includes an Internet network such as a cable network or a public telephone network (PSTN), and the wireless communication network includes CDMA, WCDMA, GSM, Evolved Packet Core (EPC), Long Term Evolution (LTE), and Wibro networks. It is meant to include. Of course, the communication network 120 according to the embodiment of the present invention is not limited thereto, and may be used as an access network for a next-generation mobile communication system to be implemented in the future, for example, a cloud computing network or a 5G network under a cloud computing environment. For example, when the communication network 120 is a wired communication network, the access point in the communication network 120 can be connected to the switching center of the telephone office, but in the case of a wireless communication network, data is accessed by accessing SGSN or GGSN (Gateway GPRS Support Node) operated by the communication company. Alternatively, data can be processed by accessing various repeaters such as BTS (Base Station Transmission), NodeB, and e-NodeB.

The communication network 120 may include an access point. Here, the access point includes a small base station such as a femto or pico base station that is frequently installed in a building. Here, the femto or pico base station is classified according to the maximum number of the learner terminal device 100 or the instructor terminal device 110 can be accessed according to the classification of the small base station. Of course, the access point includes a short-range communication module for performing short-range communication such as Zigbee and Wi-Fi with the learner terminal device 100 or the instructor terminal device 110. The access point may use TCP/IP or Real-Time Streaming Protocol (RTSP) for wireless communication. Here, short-range communication may be performed in various standards such as Bluetooth, Zigbee, infrared, radio frequency (RF) such as ultra high frequency (UHF) and very high frequency (VHF), and ultra wideband communication (UWB) in addition to Wi-Fi. Accordingly, the access point can extract the location of the data packet, designate the best communication path for the extracted location, and deliver the data packet to the next device, for example, the learning service device 130 along the designated communication path. The access point can share several lines in a general network environment, and includes, for example, a router, a repeater, and a repeater.

The learning service device 130 may store various learning videos related to instructors using the instructor terminal device 110 in the DB 130a and then provide it to the learner terminal device 100. Learning services may be services provided by digital (cyber) universities, for example, but may also be services provided by general private academies. The learning service device 130 receives the query image provided from the learner's terminal device 100, matches it with the video, and stores it, and then notifies the instructor of the video that there is a query, that is, the instructor's terminal device 110 do. Of course, the learning service device 130 may operate in various forms with the learner terminal device 100 in connection with the generation of the query image. Previously, a method of generating and transmitting a query image improvised while playing and learning a video, and a method of generating and transmitting a query image based on frame information of the video have been exemplified.

Above all, the learning service device 130 allows the learner to make a query related to a certain part of the learning content of the video, and the instructor needs to know this so that a more accurate answer can be proceeded. In addition, the second and third learners When watching, other students can know what questions they have in relation to the part, so that they can acquire more learning information during learning. Accordingly, it is preferable that the learning service device 130 use frame information for each section of the video in order to know where to insert the query image and the answer information or to notify the fact at which location during the playback of the video. Of course, it is possible to classify these sections by time, but in an embodiment of the present invention, it is preferable to classify them based on a unit frame of an image containing learning content. For example, a video is classified by time (eg, in seconds and minutes), but matching it to store frame information related to learning content, the learner sees the frame information and informs that it is a query image for the corresponding section. Of course, since the frame information may be formed in various forms, such as using a keyword, the embodiment of the present invention will not be particularly limited to any one form.

When the second and third learners watch the video, the learning service device 130 has an inquiry by another learner at the bottom of the playback screen 200 on which the video is played as shown in FIG. 2, and an answer by the instructor. For example, it may be displayed on the screen as a notification phrase 210. If the learner clicks the confirmation of the notification phrase 210, a query image and an answer area 220 and 230 may appear on the right side of the playback screen 200, respectively. For example, in the case of clicking Confirm, the playback image of the playback screen 200 may stop for a while, and playback may be started again when the query image or the answer image is completed. Even in this case, since the operation may be various, there will be no particular limitation to the above in the embodiment of the present invention. For example, when the query image ends in one area, the answer image may be played. To this end, the query image and the answer image may be combined with each other. Here, the synthesis may be regarded as forming a part so that the first frame image of the answer image is displayed on the screen following the last frame image of the query image.

In summary, the learning service device 130 is a main server, for example, where a learner receives frame information for a video lecture and a video lecture, and displays (or displays, expresses) in the frame if there is a query content during the video lecture. And the learner uses the learner's terminal device 100 to take a picture of the content he or she queries. The learner provides the frame information and the captured image to the main server. In addition, the learning service device 130, which is a main server, inserts the captured image received from the learner terminal device 100 into the lecture video. In this case, it is preferable to insert the captured image, that is, the query image, rather than forming a part of the moving image, but to be reproduced together as an additional image when the corresponding moving image is played. For example, the OSD (On Screen Display) method is representative. And it notifies the instructor in charge that the query video has been added. When the instructor shoots an answer to the query content with his terminal, for example, and transmits it to the main server, the main server inserts the answer image at the position of the last frame of the learner's photographed image. Of course, insertion here can also mean matching. However, I will not rule out the formation of part of the image. And the main server provides the answer's video to the learner's terminal device 100. At this time, if the learner proceeds with an additional answer, the main server repeats the above procedure. In addition, the main server displays on the video that there are questions and answers in the frame with the corresponding question and answer while taking a video lecture in order to inform third-party students that there are questions and answers in the frame, and If the answer is clicked, question and answer images are provided continuously, so that the video class can be taught in a three-dimensional way.

3 is a block diagram illustrating a detailed structure of the learning service device of FIG. 1.

As shown in FIG. 3, the learning service device 130 according to the embodiment of the present invention includes part or all of the communication interface unit 300, the control unit 310, the video query processing unit 320, and the storage unit 330. Includes.

Here, "including some or all" means that some components such as the storage unit 330 are omitted so that the learning service device 130 is configured or some components such as the video query processing unit 320 are used in the control unit 310. It is intended to mean something that can be integrated and configured with other components such as, and will be described as including all in order to help a sufficient understanding of the invention.

The communication interface unit 300 communicates with the learner terminal device 100 and the instructor terminal device 110 via the communication network 120. In this process, operations such as modulation/demodulation, encoding/decoding, muxing/demuxing, encryption/decoding, and scaling to convert the resolution may be performed, and this is obvious to those skilled in the art, so further description will be omitted.

The communication interface unit 300 may download a video or provide a streaming service at the request of the learner terminal device 100. In this process, the communication interface unit 300 may provide frame information formed by dividing a video to be provided for each section as additional information. Accordingly, the learner terminal device 100 displays frame information on one side of the video playback screen. This is only an example. In other words, if the service according to the embodiment of the present invention is not a method of generating a query image through frame information, for example, as mentioned above, while a video is playing, a query image is generated by clicking the query button or by executing a speech command. This is because frame information may not be transmitted if the screen for performing is immediately popped up. For example, in this case, when receiving information on the playback time of a video, the learning service device 130 matches the stored video based on the corresponding time information, matches the query image and the answer image, and stores the result. It may be provided to a learner terminal device 100 possessed by a third-party learner.

Accordingly, the operation of the communication interface unit 300 may be slightly different depending on how the system designer designed and set the query image to be provided. Above all, it is clear that the communication interface unit 300 performs an operation related to the generation of such a query image with the learner terminal device 100.

The control unit 310 is in charge of overall control operations of the communication interface unit 300, the video query processing unit 320, and the storage unit 330 constituting the learning service device 130 of FIG. 3. When there is a service request for a learning video from the learner terminal device 100 of the control unit 310, the communication interface unit 300 is controlled to search and provide the corresponding video from the DB 130a. Of course, when a video is provided, time information such as a running time related to the video or frame information according to an embodiment of the present invention may be provided together.

In addition, when there is a query image provided by the learner terminal device 100 from the communication interface unit 300, the controller 310 provides the query image to the video query processing unit 320 to match the query image to a specific part of the video ( Or inserted) and saved. In addition, the control unit 310 may notify the fact of the inquiry to the instructor terminal device 110, which is an instructor of the corresponding video, of the reception of the inquiry image according to the request of the video query processing unit 320. To this end, information on the instructor terminal device 110 of the video can be checked in the storage unit 330.

In addition, when there is a query fact from the instructor terminal device 110, or more precisely, an answer to the query content through the query image, the controller 310 may match the query image with the query image and store it in the DB 130a again. Even in this case, the control unit 310 may operate according to the request of the video query processing unit 320.

The video query processing unit 320 provides a query image from the learner terminal device 100 in relation to the video being played by the learner, and when the corresponding query image is received, it notifies the instructor terminal device 110 of the fact, and further When an answer is provided from the instructor's terminal device 110 in relation to the query content for the query image, it is matched with the query image, so that when the video is played by a third-party learner, the query image and the answer thereto will be provided at a specific time. Perform an action to enable it.

For example, if there is a request for generating a query image from the learner terminal device 100 while the video is being played, the video query processing unit 320 provides a service for this. For example, in order to provide a query in real time, the video being played is paused for a while, and if the learner requests for camera photography, the camera image is included in the provided UI window. In addition, when the query through photographing is completed, the video that has been stopped is played while receiving the query image.

Of course, in this case, when the time information of the video being played is not used, it may be possible for a learner to directly input and provide frame information displayed on one side of the screen to the UI window. Through this, the video query processing unit 320 determines which part of the video being played is related to a query from the learner, matches the query image to the corresponding part, and stores it. Of course, the answers to the query image may be matched and stored in various forms. In the case of the same video format, the query video may be played first, followed by the instructor’s answer video. Alternatively, it can be played in separate areas. For example, when the areas are separated from each other as shown in FIG. 2, the area in which the teacher's answer is displayed may display not only a video, but also an answer received through an email or text message.

In this way, the video query processing unit 320 can flexibly or organically conduct learning while checking the contents of other students' queries and the instructor's answers to them in the process of learning through videos, such as in a cyber university. It will increase the interest of learning by allowing it to be made, and through this, it will be possible to increase the learning effect.

The storage unit 330 may store various types of information or data processed under the control of the controller 310. For example, when there is a video request from the learner terminal device 100, the video is retrieved from the DB 130a of FIG. 1 and the storage unit 330 contains additional information related to the video, for example, the instructor terminal device 110. After temporarily storing the device information, etc., when a query image is provided from a learner, the query fact can be notified based on the stored device information. This information may be deleted after all the storage by backup to the DB 130a related to the video processing is completed.

Meanwhile, the control unit 310 of FIG. 3 according to another embodiment of the present invention may include a CPU and a memory, and the CPU and the memory may be formed into a single chip. The CPU includes a control circuit, an operation unit (ALU), an instruction analysis unit, a registry, etc., the control circuit may include a control operation, the operation unit may include an operation of binary bit information, and an instruction analysis unit may include an interpreter or a compiler. And it allows the CPU to understand the operation in machine language through high-level language and machine language conversion. The registry is involved in software data storage. The memory may include RAM. Accordingly, the CPU copies the program stored in the video query processing unit 320 at the beginning of the operation of the learning service device 130, loads it into a memory, and executes it, thereby rapidly increasing the data processing speed.

4 is a diagram showing a learning service process according to an embodiment of the present invention.

Referring to FIG. 4, the learner terminal device 100 according to an embodiment of the present invention may request the learning service device 130 to generate a query for a designated frame (or learning content of a designated frame) of a video (S400). . Here, the query generation request for the designated frame may be provided with a service such as a UI screen through a query generation request.

Then, the learner terminal device 100 captures a video in relation to the query and transmits the captured image, that is, the query image, to the learning service device 130 (S410 and S420).

It has already been described that steps S400 to S420 according to an embodiment of the present invention may be performed in various forms. For example, when there is a request for capturing a query image, the learner terminal device 100 may take a camera, and after storing the captured image, the learner may request a service to the learning service device 130. For example, if a UI screen is provided after a service request, the stored query image is attached, and if frame information is transmitted as additional information about which part of the video is related to the query image, the video is matched based on the input frame information. It is possible to store the query image (S430). Of course, even if this is not the case, since it has been described above that various methods may be possible, further description will be omitted.

In addition, when the query image is received, the learning service device 130 determines whether the query image is a query image related to which video and notifies the instructor of the video, that is, the instructor terminal device 110 of the query, and then An answer is received from the device 110 (S440). The answer may be in various forms such as a video, an e-mail, and a text message, and in an embodiment of the present invention, a video format is preferable.

When the answer image is provided from the instructor terminal device 110, the learning service device 130 matches and stores the query image (S450). Through this, the query image and the answer image are matched and stored at a specific location of a specific video, that is, at a specific time when viewed as time information.

As a result, when a learner of a third party learns the same video above through his or her terminal device, it is notified so that it is possible to check the contents of questions or answers made by the previous learner, and when there is a request for confirmation The content of the query and the answer is displayed on the screen (S460).

5 is a flowchart showing a driving process of the learning service device of FIG. 1.

For convenience of explanation, referring to FIG. 5 together with FIG. 1, the learning service device 130 according to an embodiment of the present invention matches frame information on a unit frame image of each section divided into a plurality of sections of a designated video. And stored in the storage unit (S500). Here, the frame information may be time information, and may be information such as a topic related to learning content. Of course, the two pieces of information may be combined and generated.

Subsequently, when the learner provides the query content related to the learning of the video as a query image in a captured image, the learning service device 130 matches and stores the query image with the video based on the stored frame information, and The query is notified to (110) (S510).

In addition to the above, the learning service device 130 can perform various operations, and since it has been sufficiently described above, further description will be omitted.

On the other hand, even if all the constituent elements constituting an embodiment of the present invention are described as being combined into one or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the constituent elements may be selectively combined and operated in one or more. In addition, although all the components may be implemented as one independent hardware, a program module that performs some or all functions combined in one or more hardware by selectively combining some or all of the components. It may be implemented as a computer program having Codes and code segments constituting the computer program may be easily inferred by those skilled in the art of the present invention. Such a computer program is stored in a non-transitory computer readable media that can be read by a computer and is read and executed by a computer, thereby implementing an embodiment of the present invention.

Here, the non-transitory readable recording medium is not a medium that stores data for a short moment, such as a register, cache, memory, etc., but a medium that stores data semi-permanently and can be read by a device. . Specifically, the above-described programs may be provided by being stored in a non-transitory readable recording medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, or the like.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and is generally used in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Various modifications are possible by those skilled in the art of course, and these modifications should not be individually understood from the technical idea or perspective of the present invention.

100: learner terminal device 110: instructor terminal device
120: communication network 130: learning service device
200: playback screen 210: notification text
300: communication interface unit 310: control unit
320: video query processing unit 330: storage unit

Claims (7)

A storage unit configured to match and store frame information related to a unit frame image of each section divided into a plurality of sections of the designated video and match the video; And
When the learner provides the query content related to the learning content of the video in a captured image and provides it as a query image, the query image is matched with the video based on the stored frame information and stored in the storage unit, and the instructor's terminal device The control unit notifies the fact of the inquiry to;
A learning service device capable of querying included videos. The method of claim 1,
The control unit, when the query image is provided during the playback of the moving picture, matches the query image to the moving picture based on time information and the frame information of the reproduced moving picture, and stores the video query. The method of claim 1,
The control unit, when providing the query image, based on the input information provided by the learner and the frame information, the learning service device capable of querying a video by matching the query image to the video. The method of claim 1,
The control unit is a learning service device capable of inquiring a video based on the fact of the inquiry, receiving response content in the form of a video, e-mail, or text message from the instructor, matching the inquiry image, and storing it. The method of claim 4,
The control unit, when another learner plays the video, a learning service device capable of querying a video to display the query image and the answer content stored in matching with the video on a screen. The method of claim 5,
The control unit notifies the existence of the query image and the answer content on a screen, and displays the query image and the answer content on one side of a video playback screen when there is a confirmation request. As a learning service device capable of querying a video including a storage unit and a control unit,
Matching frame information related to a unit frame image of each section divided into a plurality of sections of a designated video with the video and storing it in the storage unit; And
When the learner provides the query content related to the learning content of the video in a captured image and provides it as a query image, the control unit matches the query image with the video based on the stored frame information and stores it in the storage unit. Notifying the fact of the query to the terminal device of the;
Driving method of a learning service device capable of querying a video containing.

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