JP2021005058A - Remote education system - Google Patents

Abstract

To increase the amusement of education content provided by a remote education system and encourage students to attend class.SOLUTION: A content distribution server according to a first aspect of the present invention includes a material data distribution unit, a reception data acquisition unit, and a material data change unit. The material data distribution unit distributes, to an education terminal, first specification data indicating specifications of a plurality of objects arranged in a virtual space forming education content for remote teaching and motion data indicating the motion of the objects. The reception data acquisition unit acquires a request for changing at least part of the first specification data received from an external device. The material data change unit changes the first specification data to second specification data different from the first specification data according to the request. The material data distribution unit distributes the second specification data to the education terminal after the first specification data is changed to the second specification data.SELECTED DRAWING: Figure 3

Description

The present invention relates to distance learning using ICT (Information and Communication Technology).

Conventionally, distance learning using ICT has been attempted. For example, in a general e-learning system, the server distributes the recorded educational content to the student's terminal via the Internet. Therefore, students can study without being restricted by location or time as compared with conventional face-to-face lessons.

Further, Patent Document 1 discloses a lesson system that provides ongoing lesson data to a student terminal in real time.

Patent No. 6227816

It is difficult for students to feel the presence of teachers and other students simply by distributing the recorded educational content. In addition, students cannot participate in the lesson other than watching videos and listening to audio, and tend to have a passive attitude.

On the other hand, by delivering the educational content being recorded in real time, students can feel the teacher's existence realistically, and vice versa. In addition, by preparing communication tools such as chat and comment functions, it is possible to encourage students to actively participate in the lesson in anticipation of the reaction of teachers and other students.

However, regardless of whether the recorded educational content is provided or the educational content being recorded is provided in real time, the provided content itself does not change unless it is re-recorded. Therefore, even if a student tries to retake a lesson with the same theme, he / she has no choice but to play the same content as the content viewed in the past, and there is a problem that the motivation for review and re-learning is hard to get excited.

An object of the present invention is to enhance the interest of educational contents provided by a distance learning system and to promote students' motivation to attend.

The content distribution server according to the first aspect of the present invention includes a material data distribution unit, a reception data acquisition unit, and a material data change unit. The material data distribution unit transfers the first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content for distance learning and the motion data indicating the movement of the plurality of objects to the educational terminal. To deliver. The received data acquisition unit acquires a request for changing at least a part of the first specification data received from the external device. The material data changing unit changes the first specification data to the second specification data different from the first specification data upon request. The material data distribution unit distributes the second specification data to the educational terminal after the first specification data is changed to the second specification data.

The content creation device according to the second aspect of the present invention includes a reproduction unit, an input data acquisition unit, and a material data generation unit. The reproduction unit reproduces reference content based on the first specification data indicating the specifications of the object related to the presentation of the lesson content and the first motion data indicating the movement of the object. The input data acquisition unit acquires the second motion data based on the movement of the user during the reproduction of the reference content and the voice data based on the utterance of the user during the reproduction of the reference content. The material data generation unit is based on the first specification data, the second specification data indicating the specifications of the avatar corresponding to the user, the first motion data, the second motion data, and the voice data. Generate material data used to reproduce the virtual space that makes up educational content for distance learning.

The educational terminal according to the third aspect of the present invention includes an input data acquisition unit and a reproduction unit. The input data acquisition unit receives input data corresponding to a request for changing at least a part of the first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content for distance learning. get. The playback unit captures lesson video data that captures a virtual space that is reproduced based on the second specification data, which is a request-based change to the first specification data, and motion data that indicates the movement of multiple objects. Play with class audio data.

According to the present invention, it is possible to enhance the interest of the educational content provided by the distance learning system and promote the students' willingness to attend.

The block diagram which illustrates the educational terminal which concerns on 1st Embodiment. The block diagram which illustrates the distance learning system including the education terminal of FIG. The block diagram which illustrates the content distribution server which concerns on 1st Embodiment. The figure which illustrates the reproduction screen of the educational content in the educational terminal of FIG. FIG. 5 illustrates a playback screen of the educational content on the educational terminal of FIG. 1 after changing the teacher's avatar in the educational content of FIG. 4 based on a request from the user. FIG. 5 illustrates a playback screen of the educational content on the educational terminal of FIG. 1 after adding a student avatar to the educational content of FIG. 5 based on a request from the user. The flowchart which illustrates the operation of the education terminal of FIG. The flowchart which illustrates the operation of the content distribution server of FIG. The block diagram which illustrates the content creation apparatus which concerns on 2nd Embodiment. The flowchart which illustrates the operation of the content creation apparatus of FIG. The block diagram which illustrates the educational terminal which concerns on 3rd Embodiment. The flowchart which illustrates the operation of the education terminal of FIG.

Hereinafter, embodiments will be described with reference to the drawings. Hereinafter, elements that are the same as or similar to the elements described will be designated by the same or similar reference numerals, and duplicate explanations will be basically omitted. For example, when a plurality of the same or similar elements exist, a common code may be used to explain each element without distinction, and the common code may be used to explain each element separately. In addition, the branch number may be used.

(First Embodiment)
The education terminal and the content distribution server according to the first embodiment can be incorporated into the distance education system illustrated in FIG. This system includes educational terminals 10-1, 10-2, 10-3, ... According to the embodiment, and a content distribution server 20. The content distribution server 20 is connected to each educational terminal 10 via a network such as the Internet, and can send and receive data to and from each other. Further, the content distribution server 20 may be connected to other servers (not shown) such as a Web server and a comment server via a network to send and receive data to and from each other.

The educational terminal 10 is an electronic device such as a computer, for example, a PC (Personal Computer), a mobile terminal (for example, a tablet, a smartphone, a laptop, a feature phone, a portable game machine, etc.), an HMD (Head Mounted Display), a game machine. , TV receivers (including Internet TVs), etc., but not limited to these.

The user of the educational terminal 10 is mainly a student of the lesson, but may include a teacher of the lesson. For example, the teacher may use the educational terminal 10 for recording, transmitting (uploading) educational content for distance learning, adding teaching material objects to the educational content, and the like. When the educational terminal 10 is used for recording educational contents, the educational terminal 10 incorporates or is connected to a motion detection device and a microphone for capturing the movement of the teacher. The motion detection device can be, for example, an inertial sensor, a Doppler sensor, a 3D camera, or the like.

The content distribution server 20 provides educational content in response to a distribution start request from the educational terminal 10. The content distribution server 20 may provide the educational content in real time while recording the educational content, or may provide the recorded educational content. Further, the content distribution server 20 may provide the educational content provided in real time even after the educational content is recorded. The educational content may be recorded by the content distribution server 20 connected to, for example, a motion detection device, a microphone, or the like, or may be recorded by the educational terminal 10 for teachers or another terminal and sequentially transmitted to the content distribution server 20. ..

Educational content typically includes VR (Virtual Reality), AR (Augmented Reality), MR (Mixed Reality), SR (Substitutional Reality), etc., which allow remote students to experience immersive lessons. Can include virtual content. The content distribution server 20 may distribute the lesson video data obtained by shooting the virtual space constituting the educational content from a certain viewpoint to the educational terminal 10, or may distribute the material data including the material for rendering the lesson video data. It may be delivered to the educational terminal 10.

The educational terminal 10 may receive comment data posted by a student or a teacher on the educational content from a comment server (not shown), and superimpose and display the comment indicated by the comment data on the educational content. The comment may be moved and displayed on the surface of the comment display object arranged in the virtual space constituting the educational content for a predetermined time, for example. On the other hand, the education terminal 10 can generate comment data to be posted to the education content based on the text input from the user and transmit it to the comment server. This allows teachers and students to have text-based, synchronous (in the case of real-time delivery) and / or asynchronous communication.

Further, the education terminal 10 further receives and reproduces the lesson audio data as a part of the education content from the content distribution server 20. This lesson audio data includes audio uttered by the teacher at the time of recording, and may further include (a part of) the audio uttered by the student. In this case, (a part of) the educational terminal 10 may generate voice data based on the student's voice detected by a microphone (not shown) and transmit it to the content distribution server 20. This allows students to experience more immersive lessons and allows teachers and students to engage in voice-based, synchronous (in the case of real-time delivery) and / or asynchronous communication. ..

The number of each device shown in FIG. 2 is merely an example. For example, since the number of educational terminals 10 changes from moment to moment, it can be 0, or it can be hundreds or thousands. Further, a Web server, a comment server, and the like not shown in FIG. 2 may be further provided.

Hereinafter, the configuration of the educational terminal 10 will be described in detail with reference to FIG.
As illustrated in FIG. 1, the education terminal 10 includes a communication I / F (interface) 101, an input / output I / F 102, a processor 110, and a memory 120.

The communication I / F 101 is a content distribution server using a communication technology such as mobile communication (for example, 3G, 4G, 5G, mobile WiMAX), Wi-Fi, WiMAX, etc., via a network, typically the Internet. Communicate with 20. The communication I / F 101 may receive various data from the processor 110 and transmit the various data to the content distribution server 20, and may receive various data from the content distribution server 20 and send the various data to the processor 110.

Specifically, the communication I / F 101 receives the material data from the content distribution server 20 and sends it to the reception data acquisition unit 111. The material data may or may not be encoded. In the former case, it is necessary to decode the material data by a decoder (not shown) before reading into the material data storage unit 121 or after reading from the material data storage unit 121.

The input / output I / F 102 is a terminal (port) of an interface used for input / output of data between the processor 110 and an external device, and can also be called an I / O (Input / Output) unit. The input / output I / F 102 may be used for exchanging data between an input device such as a touch screen, a keyboard, a mouse, a numeric keypad, a microphone, a motion detection device, and the processor 110. Similarly, the input / output I / F 102 can be used, for example, to exchange data between an output device such as a display (which may include a touch screen), a speaker, and the processor 110.

For example, the input / output I / F 102 receives the reproduced lesson video data and lesson audio data from the processor 110, and outputs these to the display and the speaker, respectively. Further, the input / output I / F 102 receives input data (user input) corresponding to a request for changing (at least a part of) the specification data of the object described later from the input device, and sends the input data (user input) to the processor 110. .. In addition, the input data includes voice data based on the user's utterance generated by the microphone and comment data generated by the keyboard (which may include a screen keyboard), for example, specifying the playback time, rewinding, fast-forwarding, and playing speed. It may include requests related to playback control of educational content such as changes and skips.

The processor 110 is typically a CPU (Central Processing Unit) and / or a GPU (Graphics Processing Unit), but is a microcomputer, FPGA (Field Programmable Gate Array), DSP (Digital Signal Processor), or other general-purpose processor. It may be a processor of.

The memory 120 is a program executed by the processor 110 in order for the processor 110 to realize each process, such as an OS (Operating System), firmware, a distance learning application, and data used by the processor 110, for example. , Material data, class video data, etc. are temporarily stored in the memory. The memory may include a RAM (Random Access Memory) having a work area where such programs / data are deployed.

The processor 110 can function as the received data acquisition unit 111, the renderer 112, the content reproduction unit 113, the input data acquisition unit 114, and the input data reporting unit 115 by executing the program stored in the memory 120. .. Further, the memory 120 may include a material data storage unit 121.

The reception data acquisition unit 111 acquires the reception data from the content distribution server 20 from the communication I / F 101, and stores this in the memory 120. For example, the reception data acquisition unit 111 acquires material data from the communication I / F 101 and stores it in the material data storage unit 121.

The renderer 112 is data that is a material for reproducing the virtual space constituting the educational content among the material data stored in the material data storage unit 121, specifically, a plurality of objects arranged in the virtual space. The specification data indicating the specifications and the motion data indicating the movements of the plurality of objects are read out. Then, the renderer 112 reproduces the virtual space (appearance, movement, etc. of each object arranged in) based on these specification data and motion data, and the lesson video taken from the reference viewpoint (virtual camera) based on these. Generate data. The renderer 112 sends the generated lesson video data to the content reproduction unit 113.

The content reproduction unit 113 receives the lesson video data from the renderer 112, and reads out the lesson audio data from the material data storage unit 121. Then, the content reproduction unit 113 reproduces the lesson audio data together with the lesson video data, and outputs the educational content to the output device via the input / output I / F 102.

The input data acquisition unit 114 acquires input data from the input / output I / F 102 and sends at least a part of the input data to the input data reporting unit 115. The input data acquisition unit 114 sends the input data to be reported to the content distribution server 20 or the comment server to the input data reporting unit 115, and makes a request regarding playback control of other input data, for example, educational content, for example, the renderer 112. And / or may be sent to the content reproduction unit 113.

The input data reporting unit 115 receives the input data from the input data acquisition unit 114, and reports this to the content distribution server 20 or the comment distribution server via the communication I / F 101. For example, the input data reporting unit 115 may transmit the request for changing the specification data of the object and the voice data to the content distribution server 20, and the comment data to the comment server. Here, the request for changing the specification data of the object is, for example, the appearance, voice character, sound effect, music, etc. of a specific object (including an avatar) included in a plurality of objects for which the specification data is specified. Can include a request to replace the object with another object, a request to delete the specification data of the specific object, a request to add the specification data of a new object (which may include an avatar) not included in the plurality of objects, and the like.

The material data storage unit 121 stores the material data. Here, the material data includes object specification data, motion data, and lesson audio data. The material data storage unit 121 may store material data for reproducing a virtual space constituting a certain educational content in association with, for example, an identifier that identifies the educational content. Further, the material data storage unit 121 may store the specification data and motion data of each object in association with the identifier that identifies the object.

The specification data may include, for example, appearance data of an object, and sound effect data or music data representing sound effects or music generated when specific conditions are satisfied with respect to the object. Further, for a vocalizable object such as an avatar, voice character data indicating the voice character in charge of the voice of the object can be included in the specification data of the object. At least a part of the specification data of the object may be preset in the material data storage unit 121 before the start of reproduction of the educational content, for example.

The motion data represents the movement, orientation (posture), position coordinates, etc. of the whole body or part of the object for each playback time of the educational content. If the object is an avatar, which is the alter ego of a teacher, student, or other party, the motion data of the object can be generated by a motion detector based on the movement of the person's whole body or site. For the generation of motion data based on the movement of the whole human body or each part, for example, a known technique based on the sensing signal of the inertial sensor or the Doppler sensor and / or the photographed data of the 3D camera can be used.

The material data is written in the material data storage unit 121 by the received data acquisition unit 111. Of the material data stored in the material data storage unit 121, the object specification data and motion data are read out by the renderer 112. Of the material data stored in the material data storage unit 121, the lesson audio data is read out by the content reproduction unit 113.

When the input data reporting unit 115 reports the input data corresponding to the request for changing the specification data of the object to the content distribution server 20, the content distribution server 20 can change the specification data of the object in response to this request. The content distribution server 20 does not necessarily have to respond to such requests from all the educational terminals 10, and may respond with some conditions such as billing, majority voting, lottery, and first come, first served.

When the content distribution server 20 changes the specification data of the object based on the request, the content distribution server 20 distributes the specification data in which the change based on the request is made to the original specification data to each educational terminal 10. The changed specification data is received by the communication I / F 101 together with the unreceived motion data, acquired by the received data acquisition unit 111, and stored in the material data storage unit 121. The motion data received here can be the same regardless of whether or not the specification data is changed. Further, the specification data before the change stored in the material data storage unit 121 is rewritten by the specification data after the change.

The changed specification data and motion data stored in the material data storage unit 121 are read out by the renderer 112 and rendered as lesson moving image data. As a result, the student can change the appearance and / or voice character of the teacher or student's avatar, or add a new object (which may include the avatar) in the educational content subsequently delivered by the content distribution server 20. And you can change the sound effects and / or music that the object can generate.

For example, if the student does not like the appearance and voice of the teacher avatar 31 appearing in the educational content shown in FIG. 4, the student changes the favorite appearance and voice to another teacher avatar 33 as shown in FIG. Can receive.

Students can also add their own avatars to the virtual spaces that make up the educational content. As a result, as shown in FIG. 6, student avatars 34 to 36 appear in the educational content in addition to the teacher avatar 33, so that the student can feel the presence of other students and appear in the educational content. The number of student avatars can be an indicator of the popularity of the content. For example, a student can roughly determine whether the educational content is popular or not from the number of student avatars shown in the preview of the educational content. Further, the size, appearance, and the like of the classroom objects arranged in this virtual space may be automatically changed depending on the number of student avatars. In other words, the size and / or appearance of the classroom object indicated by the modified specification data may depend on the number of avatars for which this specification data is defined. For example, as the number of avatars increases, classroom objects of size / appearance according to the number of people accommodated may be selected, and desk and chair objects may be added. Further, as the size of the classroom object is increased, the size of the blackboard object 32 may be increased.

In the examples of FIGS. 4 to 6, in addition to the teacher and student avatars, the blackboard object 32 is prepared as an object related to the presentation of the lesson content, but any such object such as a whiteboard or a projector can be used. The object is available.

Teaching materials such as texts, graphs, figures, photographs, and moving images displayed on the blackboard object 32 or other objects related to the presentation of lesson contents may be defined as teaching material objects different from the objects. Teachers can add, remove, or replace teaching material objects, change text font types, colors, sizes, etc., for example, by looking at student comments, audio, and other reactions during real-time or post-recording distribution. , Graphs, diagrams, photos, etc. can be resized and laid out. Such reworking of educational content can motivate students to re-view the educational content once viewed. The blackboard object 32 may be pasted with objects such as dates, day shifts, graffiti, etc. that will be written on the blackboard in the actual classroom in order to create a classroom-like appearance.

Further, on the wall of the classroom object, objects of the product such as a student's answer, a gradebook, and a drawing may be pasted. The appearance of the answer object can be generated, for example, based on the student's response to a questionnaire or other form of test delivered during playback of educational content. Also, the appearance of the gradebook object is generated based on the user's score in such a test and may be updated with each new high scored student or on a regular basis. Comments and voices praised by the teacher may be added ex post facto to the student who has obtained a high score, or such an effect may be automatically performed in the student's educational terminal 10. Exposure of such notices to teachers and other students can motivate students to retake the test for higher scores or work on more complete productions. ..

Hereinafter, the configuration of the content distribution server 20 will be described in detail with reference to FIG.
As illustrated in FIG. 3, the content distribution server 20 includes a communication I / F 201, a processor 210, and a memory 220.

The communication I / F 201 communicates with the educational terminal 10 via a network, typically the Internet, using a communication technology such as optical communication. The communication I / F 201 may receive various data from the processor 210 and transmit it to the education terminal 10, and may receive various data from the education terminal 10 and send it to the processor 210.

Specifically, the communication I / F 201 receives data such as a request for changing specification data from the education terminal 10 and sends the data to the processor 210. Further, the communication I / F 201 receives the material data from the processor 210 and transmits the material data to the education terminal 10. The material data may or may not be encoded. In the former case, the content distribution server 20 may include an encoder that encodes material data.

Of the material data, the lesson voice data and the motion data may be uploaded to the content distribution server 20 from, for example, the teacher's educational terminal 10, or may be generated by a microphone and a motion detection device (not shown) connected to the content distribution server 20. May be done. In the latter case, the content distribution server 20 may include an input / output I / F for connecting to these microphones and a motion detection device, and an input data acquisition unit for acquiring motion data and lesson voice data from them. .. The initial value of the specification data in the material data can be specified by the teacher or the administrator of the distance learning system, for example, before recording the educational content.

The processor 210 is typically a CPU and / or GPU, but may be a microcontroller, FPGA, DSP, or other general purpose or dedicated processor.

The memory 220 is a program executed by the processor 210 in order for the processor 210 to realize each process, such as an OS, firmware, a distance learning application, and data used by the processor 210, such as material data. It contains a memory that temporarily stores class video data, etc. The memory may include a RAM having a work area where such programs / data are deployed.

The processor 210 can function as the received data acquisition unit 211, the material data change unit 212, and the material data distribution unit 213 of FIG. 3 by executing the program stored in the memory 220. Further, the memory 220 may include a material data storage unit 221.

The reception data acquisition unit 211 acquires the reception data from the education terminal 10 or another external device, for example, the terminal of the administrator of the distance education system from the communication I / F 201, and sends this to the material data change unit 212. The reception data acquisition unit 211 sends the reception data (user input) corresponding to the request for changing the specification data to the material data change unit 212. On the other hand, the received data acquisition unit 211 stores other received data, for example, motion data and class audio data uploaded from the teacher's educational terminal 10, audio data uploaded from the student's educational terminal 10, and the like as material data. Can be written to unit 221.

The material data changing unit 212 receives received data corresponding to a request for changing the specification data from the received data acquisition unit 211, and changes the specification data stored in the material data storage unit 221 accordingly. For example, when the material data changing unit 212 is requested to replace the specification data of a specific object, the material data storage unit 221 can rewrite the target specification data into the specification data included in the request. Further, when the material data changing unit 212 is requested to add the specification data of a new object, the material data changing unit 212 associates the specification data included in the request with the identifier of the target educational content and makes the material. It can be written to the data storage unit 221. Further, when the material data changing unit 212 is requested to delete the specification data of a specific object, the material data changing unit 212 may delete the specification data of the target object from the material data storage unit 221.

As described above, the material data changing unit 212 does not necessarily have to respond to all the requests. That is, the material data changing unit 212 may change the specification data conditionally according to the request.

The material data distribution unit 213 reads the material data from the material data storage unit 221 and distributes the material data to the education terminal 10 via the communication I / F 201. The material data distribution unit 213 distributes the changed specification data to the education terminal 10 after the material data is changed by the material data change unit 212.

The material data storage unit 221 stores material data. The material data storage unit 221 can store material data for reproducing a virtual space constituting a certain educational content in association with, for example, an identifier that identifies the educational content. Further, the material data storage unit 221 can store the specification data and the motion data of each object in association with the identifier that identifies the object.

The material data can be written to the material data storage unit 221 by, for example, the reception data acquisition unit 211 or the input data acquisition unit (not shown). Further, the material data can be rewritten by the material data changing unit 212. The material data stored in the material data storage unit 221 is read out by the material data distribution unit 213.

Hereinafter, the operation of the educational terminal 10 will be described with reference to FIG. 7. FIG. 7 shows an operation example of the educational terminal 10 from the start to the end of viewing the educational content by the user of the educational terminal 10.

When the operation of FIG. 7 starts, the process proceeds to step S301. In step S301, the reception data acquisition unit 111 acquires the material data received by the communication I / F 101 and stores it in the material data storage unit 121.

The material data received in step S301 may include, for example, motion data and lesson audio data associated with the reproduction time for a predetermined period of the educational content to be reproduced by the educational terminal 10. Further, this material data may include initial specification data or modified specification data.

Next, the renderer 112 renders the lesson moving image data based on the specification data and the motion data of the material data received in step S301 (step S302).

Then, the content reproduction unit 113 reproduces the lesson video data rendered in step S302 together with the lesson audio data among the material data received in step S301 (step S303).

On the other hand, when the input data acquisition unit 114 acquires the input data corresponding to the request for changing the specification data via the input / output I / F 102, the process proceeds to step S305 (step S304). In step S305, the input data reporting unit 115 reports the input data corresponding to the request for changing the specification data to the content distribution server 20.

In the example of FIG. 7, steps S304 and S305 are drawn to be executed after step S303, but this is not essential. That is, the content distribution server 20 of the request is triggered by the acquisition of the request for changing the specification data independently of the reception of the material data and the reproduction of the educational content (steps S301 to S303) that can be executed in a pipeline manner. May be reported to.

Hereinafter, the operation of the content distribution server 20 will be described with reference to FIG. FIG. 8 shows an operation example of the content distribution server 20 from the start to the end of viewing the educational content by the user of the educational terminal 10.

When the operation of FIG. 8 starts, the process proceeds to step S401. In step S401, the material data distribution unit 213 reads the material data from the material data storage unit 221 and distributes the material data to the education terminal 10 via the communication I / F 201.

The material data delivered in step S401 may include, for example, motion data and lesson audio data associated with the reproduction time for a predetermined period of the educational content to be reproduced by the educational terminal 10. Further, this material data may include initial specification data or modified specification data.

The content distribution server 20 basically repeatedly executes this step S401. However, when the communication I / F 201 receives the request for changing the specification data from the education terminal 10, the process proceeds to step S403 (step S402).

In step S403, the received data acquisition unit 211 acquires a request for changing the specification data received by the communication I / F 201. Next, the material data changing unit 212 changes the specification data stored in the material data storage unit 221 in response to the request acquired in step S403 (step S404).

Then, in step S401 executed after step S404, the material data distribution unit 213 distributes the material data including the changed specification data to the education terminal 10.

As described above, the educational terminal according to the first embodiment corresponds to a request for changing at least a part of the specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content. The input data to be input is acquired and transmitted to the content distribution server according to the present embodiment. This content distribution server changes the specification data (conditionally) in response to this request, and distributes the changed specification data. Therefore, according to these educational terminals and content distribution servers, students, teachers or managers of distance learning systems can respond to educational content with events that occur during or after recording, such as student needs and reactions, and the public. It can be modified according to trends, promotions, etc. to enhance its interest. That is, it is possible to promote students' willingness to attend.

Traditionally recorded educational content may be equated by students with a mere recorded program. In this case, for the student, viewing the educational content is no different from receiving education through video playback or television broadcasting, so that the sense of presence, urgency, sense of participation, and motivation for learning are less likely to occur. On the other hand, according to the present embodiment, for example, the answers and gradebooks of the students who watched the educational content are pasted in the classroom, the number of student avatars taking classes in the classroom in the virtual space increases, and the teacher avatars. Can be changed to an avatar that the student can be familiar with instead of a character that the student does not know, or it is possible to watch exchanges such as questions and answers between other students in the classroom and the teacher. Therefore, according to this embodiment, the student can feel as if he / she is participating in a live lesson even when the recorded educational content is distributed as well as the educational content being recorded. There is a special effect that it is easy to get a sense of presence, a sense of urgency, a sense of participation, and a desire to learn.

(Second Embodiment)
In the first embodiment described above, the educational content is enhanced by making it possible to modify the educational content. On the other hand, by diverting a part of the educational content, for example, the specification data and the motion data of the teaching material object, it is possible to create a new educational content of the same theme at low cost.

As illustrated in FIG. 9, the content creation device 50 according to the second embodiment includes an input / output I / F 501, a processor 510, and a memory 520.

The input / output I / F 501 is an interface terminal (port) used for inputting / outputting data between the processor 510 and an external device. The input / output I / F 501 may be used for exchanging data between an input device such as a touch screen, a keyboard, a mouse, a numeric keypad, a microphone, a motion detection device, and the processor 510. Similarly, the input / output I / F 501 can be used, for example, to exchange data between an output device such as a display (which may include a touch screen), a speaker, and the processor 510.

For example, the input / output I / F 501 receives the reproduced reference content from the processor 510 and outputs them to the display (and speaker). Further, the input / output I / F 501 receives motion data based on the movement of the user during playback of the reference content from a motion detection device (not shown), and sends the motion data to the processor 510. The input / output I / F 501 receives voice data based on the user's utterance during playback of the reference content from a microphone (not shown), and sends this to the processor 510.

The processor 510 is typically a CPU and / or GPU, but may be a microcontroller, FPGA, DSP, or other general purpose or dedicated processor.

The memory 520 is a program executed by the processor 510 in order for the processor 510 to realize each process, such as an OS, firmware, a content creation application, a distance learning application, and the data used by the processor 510, for example. , Material data, etc. are temporarily stored in the memory. The memory may include a RAM having a work area where such programs / data are deployed.

The processor 510 can function as the renderer 511 of FIG. 9, the content reproduction unit 512, the input data acquisition unit 513, and the material data generation unit 514 by executing the program stored in the memory 520. Further, the memory 520 may include a material data storage unit 521.

The renderer 511 reads out the specification data indicating the specifications of the object related to the presentation of the lesson content, for example, the teaching material object, and the motion data indicating the movement of the object among the material data stored in the material data storage unit 521. Here, the specification data and motion data of this object may be, for example, a part of the material data related to the existing educational content as the base, or when the existing educational content as the base does not exist. May also be created for diversion among multiple educational contents of the same theme. The reference content may be rendered in advance, and in this case, the content creation device 50 does not require the renderer 511.

Then, the renderer 511 reproduces at least the appearance, movement, etc. of the object related to the presentation of the lesson content based on these specification data and motion data, and the reference content taken from the reference viewpoint (virtual camera) based on this. (Also called video data for reference) is generated. This reference content corresponds to a script for the user (typically a teacher) to grasp the development of the lesson content to be diverted in real time. The user will give a lesson with gestures while checking this reference content. The renderer 511 sends the generated reference content to the content reproduction unit 512.

The content reproduction unit 512 receives the reference content from the renderer 511. Then, the content reproduction unit 512 reproduces the reference content and outputs it to the output device via the input / output I / F 501. The reference content may include audio. In this case, the content reproduction unit 512 may read out the (class) audio data stored in the material data storage unit 521. Further, the reference content may be the existing educational content itself as a base.

The input data acquisition unit 513 acquires input data from the input / output I / F 501, and sends at least a part of the input data to the material data generation unit 514. The input data acquisition unit 513 sends the input data corresponding to the motion data and the motion data to the material data generation unit 514.

The material data generation unit 514 receives motion data and audio data from the input data acquisition unit 513, and generates material data of new educational content being created based on these data. Specifically, the material data generation unit 514 assigns the motion data and the audio data a playback time of the reference content at the time of generation, input, or reception. Then, the material data generation unit 514 stores the motion data and the voice data in the material data storage unit 521 in association with the identifier of the new educational content.

Further, the material data generation unit 514 is creating new educational content that is creating specification data indicating the specifications of the user's avatar and material data (for example, specification data and motion data of the teaching material object) that is the source of the reference content. It is stored in the material data storage unit 521 in association with the identifier of. The specification data indicating the specifications of the user's avatar may be determined based on the input of the user himself / herself, or may be specified by the administrator of the distance learning system.

In short, the material data generation unit 514 includes material data that is the source of the reference content, that is, the diverted material data, motion data and audio data that indicate the user's movement and audio during playback of the reference content, and the user's. The specification data indicating the specifications of the avatar is stored in the material data storage unit 521 as the material data of the new educational content. In the educational content created in this way, the development of the lesson content is the same as the reference content, but the teacher can demonstrate his / her individuality through the movement of the teacher avatar and the lesson voice.

The material data storage unit 521 stores the material data. Here, the material data includes object specification data, motion data, and lesson audio data. The material data storage unit 521 may store material data for reproducing a virtual space constituting a certain educational content in association with, for example, an identifier that identifies the educational content. Further, the material data storage unit 521 can store the specification data and the motion data of each object in association with the identifier that identifies the object.

Specifically, before the new educational content is created, at least the specification data and the motion data that are the source of the reference content are stored in the material data storage unit 521. These specification data and motion data are read by the renderer 511. Then, during the creation of the educational content, the user's voice data and motion data are sequentially written in the material data storage unit 521. The user's voice data is used as the lesson voice data of this educational content, and the user's motion data is used as the motion data of the teacher avatar of this educational content.

Hereinafter, the operation of the content creation device 50 will be described with reference to FIG. FIG. 10 shows an operation example of the content creation device 50 from the start to the end of the creation of new educational content by diverting the reference content having the content creation device 50.

When the operation of FIG. 10 starts, the process proceeds to step S601. In step S601, the renderer 511 reads the specification data and the motion data of the object related to the presentation of the lesson content from the material data storage unit 521, and renders the reference content based on these.

The material data read in step S601 may include, for example, motion data associated with the reproduction time for a predetermined period of the reference content to be reproduced by the content creation device 50. Further, this material data may include specification data.

Then, the content reproduction unit 512 reproduces the reference content rendered in step S601 (step S602).

On the other hand, the input data acquisition unit 513 acquires motion data and voice data based on the movement and utterance of the user during playback of the reference content (step S603). Then, the material data generation unit 514 generates material data of new educational content based on the motion data and the voice data acquired in step S603, and stores the material data in the material data storage unit 521 (step S604).

In the example of FIG. 10, steps S603 and S604 are drawn to be executed after step S602, but this is not essential. That is, new material data of educational content is sequentially added based on the acquired motion data and audio data independently of the rendering-playback (steps S601 to S602) of the reference content that can be executed in a pipeline manner. You can.

As described above, the content creation device according to the second embodiment reproduces the reference content corresponding to the script for the teacher to refer to the development of the diverted lesson content in real time, and the movement of the teacher and the movement of the teacher during that time. Generate material data for new educational content based on the vocalization. Therefore, according to this content creation device, it is possible to easily provide educational content of the same theme in which the development of the lesson content is the same but the movement of the teacher avatar and the lesson voice data are different. Therefore, students can select and watch educational content that motivates them to attend.

In selecting the educational content to be taken by the student, the student may attach importance to the sensory element received from the content, for example, the visual element and the auditory element. Therefore, even if the lesson content is the same, educational content with different teachers' appearances, movements, and speaking styles may have completely different popularity. Therefore, it is significant to make it possible to easily provide educational content of the same theme by diverting the development of the lesson content as in the present embodiment.

This content creation device may upload the educational content to the content distribution server during the creation of new educational content. As a result, new educational content can be delivered in real time. On the other hand, the content creation device may upload the educational content to the content distribution server after creating new educational content. Alternatively, this content creation device may be incorporated in the content distribution server.

The second embodiment can also be combined with the first embodiment described above or the third embodiment described later. That is, with respect to the educational content created by the content creation device according to the present embodiment, it may be possible to change the specification data as described in the first embodiment or the third embodiment.

(Third Embodiment)
In the above-described first embodiment, the specification data stored in the material data storage unit 521 of the content distribution server 20 is changed in response to the request for changing the specification data. That is, changes in specification data affect all students viewing the same educational content. Therefore, when the change of the specification data is reflected globally in this way, there is a possibility that the conditions for allowing the change must be tightened.

On the other hand, it is also possible to allow only the students who requested the change of the specification data to view the educational content reflecting the change. If the change in the specification data is reflected locally in this way, its influence is limited, and it is easy to relax the conditions for allowing the change. As a result, students can freely customize objects including avatars according to their own tastes and attend classes.

The educational terminal 70 according to the third embodiment includes a communication I / F 701, an input / output I / F 702, a processor 710, and a memory 720, as illustrated in FIG.

The communication I / F 701, the input / output I / F 702, the processor 710, and the memory 720 have the same or similar hardware as the communication I / F 101, the input / output I / F 102, the processor 110, and the memory 120 in FIG. 1, respectively. possible.

The processor 710 can function as the received data acquisition unit 711, the renderer 712, the content reproduction unit 713, the input data acquisition unit 714, and the material data change unit 715 of FIG. 11 by executing the program stored in the memory 720. .. Further, the memory 720 may include a material data storage unit 721.

Here, the received data acquisition unit 711, the renderer 712, and the content reproduction unit 713 may be the same as or similar to the reception data acquisition unit 111, the renderer 112, and the content reproduction unit 113 of FIG. 1, respectively.

The input data acquisition unit 714 acquires input data from the input / output I / F 702 and sends at least a part of the input data to the material data change unit 715. The input data acquisition unit 714 sends input data corresponding to a request for changing the specification data to the material data change unit 715. In addition, the input data acquisition unit 714 may send, for example, a request regarding reproduction control of educational content to, for example, the renderer 712 and / or the content reproduction unit 713. In addition, the input data acquisition unit 714 may send input data to be reported to the content distribution server or the comment server, for example, voice data or comment data to an input data reporting unit (not shown). In this case, the input data reporting unit may report such data to the content distribution server or the comment server via the communication I / F 701.

Here, since the content distribution server according to the third embodiment does not receive the request for changing the specification data from the education terminal 70, the functional unit related to the request, for example, the material data, is transmitted from the content distribution server 20 described above. The configuration may be such that the changed unit 212 is deleted.

The material data changing unit 715 receives the input data corresponding to the request for changing the specification data from the input data acquisition unit 714, and changes the specification data stored in the material data storage unit 721 accordingly. For example, when the material data changing unit 715 is requested to replace the specification data of a specific object, the material data storage unit 721 can rewrite the target specification data into the specification data included in the request. When the material data changing unit 715 is requested to add the specification data of a new object, the material data changing unit 715 associates the specification data included in the request with the identifier of the target educational content and makes the material. It can be written to the data storage unit 721. Further, when the material data changing unit 715 is requested to delete the specification data of a specific object, the material data changing unit 715 may delete the specification data of the target object from the material data storage unit 721.

The material data storage unit 721 stores material data. The material data storage unit 721 may store material data for reproducing a virtual space constituting a certain educational content in association with, for example, an identifier that identifies the educational content. Further, the material data storage unit 721 can store the specification data and the motion data of each object in association with the identifier that identifies the object.

The material data is written in the material data storage unit 721 by the received data acquisition unit 711. Further, the material data can be rewritten by the material data changing unit 715. Of the material data stored in the material data storage unit 721, the object specification data and the motion data are read out by the renderer 712. Of the material data stored in the material data storage unit 721, the lesson audio data is read out by the content reproduction unit 713.

The change of the object specification data by the material data changing unit 715 is applied only to the educational content reproduced by the educational terminal 70 including the material data changing unit 715. On the other hand, the other educational terminal 70 can reproduce the educational content based on the material data distributed from the content distribution server, or the educational content based on the material data obtained by changing the material data inside the educational terminal 70.

The changed specification data is stored in the material data storage unit 721 together with the motion data received from the content distribution server. The motion data received here can be the same regardless of whether or not the specification data is changed. The changed specification data and motion data stored in the material data storage unit 721 are read out by the renderer 712 and rendered as lesson moving image data. This allows students to freely change, for example, the appearance and / or voice character of the teacher or student's avatar, or create new objects (including avatars) in the educational content played by their educational terminal 70. You can add and change the sound effects and / or music that the object can generate.

Hereinafter, the operation of the education terminal 70 will be described with reference to FIG. FIG. 12 shows an operation example of the educational terminal 70 from the start to the end of viewing the educational content by the user of the educational terminal 70.

When the operation of FIG. 12 starts, the process proceeds to step S801. In step S801, the received data acquisition unit 711 acquires the material data received by the communication I / F 701 and stores it in the material data storage unit 721.

The material data received in step S801 may include, for example, motion data and lesson audio data associated with the reproduction time for a predetermined period of the educational content to be reproduced by the educational terminal 70. Further, this material data may include initial specification data.

Next, the renderer 712 renders the lesson moving image data based on the specification data and the motion data of the material data received in step S801 (step S802).

Then, the content reproduction unit 713 reproduces the lesson video data rendered in step S802 together with the lesson audio data among the material data received in step S801 (step S803).

On the other hand, when the input data acquisition unit 714 acquires the input data corresponding to the request for changing the specification data via the input / output I / F 702, the process proceeds to step S805 (step S804). In step S805, the material data changing unit 715 changes the specification data stored in the material data storage unit 721 in response to the request acquired in step S804. Then, in step S802 executed after step S805, the renderer 712 renders the lesson moving image data based on the material data including the changed specification data.

In the example of FIG. 12, steps S804 and S805 are drawn to be executed after step S803, but this is not essential. That is, the specification data corresponding to the request is triggered by the acquisition of the request for changing the specification data independently of the reception of the material data and the reproduction of the educational content (steps S801 to S803) that can be executed in a pipeline manner. Changes may be made.

As described above, the educational terminal according to the third embodiment corresponds to a request for changing at least a part of the specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content. The input data to be input is acquired, and the specification data stored in the educational terminal is changed accordingly. Therefore, according to this educational terminal, the student can freely modify the educational content according to his / her taste and enhance its interest. That is, students can customize and view educational contents so as to increase their motivation to attend.

It is also possible to combine the first embodiment and the third embodiment. As an example, the request to replace or delete the specification data of a specific object may be reflected locally, and the request to add the specification data of a new object may be reflected globally.

(Modification example)
In the above-mentioned first embodiment and the third embodiment, the educational terminal renders the lesson video data. However, this is only an example. The content distribution server may render the lesson video data. In this case, the educational terminal does not need a renderer because it receives and stores the lesson video data from the content distribution server instead of the specification data and the motion data. On the other hand, the content distribution server requires a renderer because it transmits the lesson video data to the educational terminal instead of the specification data and the motion data.

The above embodiments are merely specific examples to aid in understanding the concepts of the invention and are not intended to limit the scope of the invention. In the embodiment, various components can be added, deleted or converted without departing from the gist of the present invention.

In the above-described embodiment, some functional parts have been described, but these are only examples of implementation of each functional part. For example, it is possible that a plurality of functional parts described as being mounted on one device may be mounted on a plurality of separate devices, and conversely, it is described as being mounted on a plurality of separate devices. It is also possible that the functional unit is mounted on one device.

The various functional parts described in each of the above embodiments may be realized by using a circuit. The circuit may be a dedicated circuit that realizes a specific function, or may be a general-purpose circuit such as a processor.

At least a part of the processing of each of the above embodiments can be realized by using, for example, a processor mounted on a general-purpose computer as basic hardware. The program that realizes the above processing may be provided by storing it in a computer-readable recording medium. The program is stored on the recording medium as a file in an installable format or a file in an executable format. Examples of the recording medium include magnetic disks, optical disks (CD-ROM, CD-R, DVD, etc.), magneto-optical disks (MO, etc.), semiconductor memories, and the like. The recording medium may be any medium as long as it can store the program and can be read by a computer. Further, the program that realizes the above processing may be stored on a computer (server) connected to a network such as the Internet and downloaded to the computer (client) via the network.

10, 70 ... Educational terminal 20 ... Content distribution server 31, 33 ... Teacher avatar 32 ... Blackboard object 34, 35, 36 ... Student avatar 50 ... Content creation device 101, 201, 701 ... Communication I / F
102, 501,702 ... I / O I / F
110, 210, 510 ... Processor 111,211,711 ... Received data acquisition unit 112,511,712 ... Renderer 113,512,713 ... Content playback unit 114,513,714 ... Input Data acquisition unit 115 ... Input data reporting unit 120, 220, 520 ... Memory 121,221,521 ... Material data storage unit 212,715 ... Material data changing unit 213 ... Material data distribution unit 514 ... Material data generation unit

The content distribution server according to the first aspect of the present invention is a content distribution server capable of providing the educational content to the educational terminal in real time while recording the educational content for the distance learning, and the provided distance learning. The first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content for the purpose and the motion data indicating the movement of the plurality of objects are associated with the identifier that identifies the educational content. The material data storage unit for storing the data, the material data distribution unit for distributing the stored first specification data and the motion data to the educational terminal requesting distribution, and the first product received from an external device. A request to change at least part of the specification data, such as replacing the appearance of a teacher or student avatar placed in the virtual space, replacing the teacher or student voice character, or a new object containing the avatar. Addition of specification data, change of sound that can be generated by the object placed in the virtual space, change of music that can be generated by the object, specification data of the student's avatar by the student himself in the virtual space Addition, deletion of the object, addition of specification data of the teaching material object arranged in the virtual space, deletion of the teaching material object, replacement of the teaching material object, and change of the specification of the teaching material object. A reception data acquisition unit that acquires a request including the above, and a material data change unit that changes the first specification data to a second specification data different from the first specification data saved in response to the request. The material data distribution unit distributes the second specification data to the education terminal after the first specification data is changed to the second specification data.

The educational terminal according to the third aspect of the present invention includes an input data acquisition unit and a reproduction unit. The input data acquisition unit is at least a part of the first specification data showing the specifications of a plurality of objects arranged in the virtual space constituting the educational content for distance learning provided in real time from the server during recording. The request to change the appearance of the teacher or student's avatar placed in the virtual space, the replacement of the teacher or student's voice character, the addition of specification data of a new object including the avatar, Change the sound that can be generated by the object placed in the virtual space, change the music that can be generated by the object, add the specification data of the student's avatar to the virtual space by the student himself, Corresponds to a request including at least one of deletion, addition of specification data of a teaching material object arranged in the virtual space, deletion of the teaching material object, replacement of the teaching material object, and change of the specification of the teaching material object. Get the input data. The playback unit captures lesson video data that captures a virtual space that is reproduced based on the second specification data, which is a request-based change to the first specification data, and motion data that indicates the movement of multiple objects. Play with class audio data.

Content delivery server according to the first aspect of the present invention, during recording of educational content for distance learning, a content distribution server that can provide the educational content education terminal in real time, the educational content provided Material that stores the first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the above and the motion data indicating the movements of the plurality of objects in association with an identifier that identifies the educational content. At least the data storage unit, the material data distribution unit that distributes the stored first specification data and the motion data to the educational terminal requesting distribution, and the first specification data received from the external device. A request to change a part of the appearance of the teacher or student avatar placed in the virtual space, the replacement of the teacher or student voice character, and the specification data of a new object including the avatar. Addition, change of the sound that can be generated by the object placed in the virtual space, change of the music that can be generated by the object, addition of the specification data of the student's avatar by the student himself into the virtual space, the above. A request including at least one of deletion of an object, addition of specification data of a teaching material object arranged in the virtual space, deletion of the teaching material object, replacement of the teaching material object, and change of the specification of the teaching material object. It includes a reception data acquisition unit to be acquired and a material data change unit that changes the first specification data to second specification data different from the first specification data stored in response to the request. The material data distribution unit distributes the second specification data to the education terminal after the first specification data is changed to the second specification data, and the material data change unit performs the education. The change to the second specification data regarding the student's avatar received from the terminal is reflected only to the student who requested the change of the second specification data.

At least a part of the processing of each of the above embodiments can be realized by using, for example, a processor mounted on a general-purpose computer as basic hardware. The program that realizes the above processing may be provided by storing it in a computer-readable recording medium. The program is stored on the recording medium as a file in an installable format or a file in an executable format. Examples of the recording medium include magnetic disks, optical disks (CD-ROM, CD-R, DVD, etc.), magneto-optical disks (MO, etc.), semiconductor memories, and the like. The recording medium may be any medium as long as it can store the program and can be read by a computer. Further, the program that realizes the above processing may be stored on a computer (server) connected to a network such as the Internet and downloaded to the computer (client) via the network.
(Appendix 1)
Request to change at least a part of the first specification data indicating the specifications of multiple objects arranged in the virtual space constituting the educational content for distance learning provided in real time from the server during recording. The appearance of the teacher or student avatar placed in the virtual space is replaced, the voice character of the teacher or student is replaced, the specification data of a new object including the avatar is added, and the avatar is placed in the virtual space. Changes in the sound that can be generated by the object, changes in the music that can be generated by the object, addition of the student's avatar specification data to the virtual space by the student himself, deletion of the object, in the virtual space Input to acquire input data corresponding to a request including at least one of addition of specification data of a teaching material object placed in, deletion of the teaching material object, replacement of the teaching material object, and change of the specification of the teaching material object. Data acquisition department and
Class video data of the virtual space reproduced based on the second specification data in which the first specification data is changed based on the request and the motion data showing the movements of the plurality of objects. With the playback section that plays along with the lesson audio data
Educational terminal equipped with.
(Appendix 2)
An input data reporting unit that reports the input data to the content distribution server,
A reception data acquisition unit that acquires the second specification data and the motion data received from the content distribution server, and
With a renderer that renders the lesson video data based on the second specification data and the motion data.
The educational terminal according to (Appendix 1), further comprising.
(Appendix 3)
An input data reporting unit that reports the input data to the content distribution server,
A reception data acquisition unit that acquires the lesson video data based on the second specification data and the motion data received from the content distribution server.
The educational terminal according to (Appendix 1), further comprising.
(Appendix 4)
A material data storage unit that stores the first specification data in association with an identifier that identifies the educational content, and
The first specification data in which the first specification data is stored in response to the request includes a material data changing unit that changes the first specification data to the second specification data.
With a renderer that renders the lesson video data based on the second specification data and the motion data.
The educational terminal according to (Appendix 1), further comprising.
(Appendix 5)
Computer,
A request from the server to change at least part of the first specification data that indicates the specifications of multiple objects placed in the virtual space that constitutes the educational content for distance learning provided in real time during recording. The appearance of the teacher or student's avatar placed in the virtual space is replaced, the voice character of the teacher or student is replaced, the specification data of a new object including the avatar is added, and the object is placed in the virtual space. Change the sound that can be generated by the object, change the music that can be generated by the object, add the specification data of the student's avatar to the virtual space, delete the object, and use the virtual space. A means for obtaining input data corresponding to a request including at least one of addition of specification data of a teaching material object arranged in, deletion of the teaching material object, replacement of the teaching material object, and change of the specification of the teaching material object. ,
Class video data of the virtual space reproduced based on the second specification data in which the first specification data is changed based on the request and the motion data showing the movements of the plurality of objects. Means to play with lesson audio data
An educational program that functions as.
(Appendix 6)
A playback unit that reproduces reference content based on the first specification data that shows the specifications of the objects related to the presentation of the lesson content and the first motion data that shows the movement of the objects.
An input data acquisition unit that acquires a second motion data based on the movement of the user during playback of the reference content and voice data based on the voice of the user during playback of the reference content.
Remotely based on the first specification data, the second specification data indicating the specifications of the avatar corresponding to the user, the first motion data, the second motion data, and the voice data. With the material data generation unit that generates the material data used to reproduce the virtual space that composes the educational content for the lesson
A content creation device equipped with.

Distance Learning system according to the first aspect of the present invention, and one or more educational terminals, during recording of educational content for distance learning, any of the one or more educational terminals the educational content in real time A remote education system including a content distribution server that can be provided to an education terminal , wherein the content distribution server is a first unit that indicates specifications of a plurality of objects arranged in a virtual space constituting the provided educational content. The first material data storage unit that stores the specification data and motion data indicating the movements of the plurality of objects in association with an identifier that identifies the educational content, the saved first specification data, and the above. To change at least a part of the first specification data received from the external device and the material data distribution unit that distributes the motion data to the education terminal requesting distribution among the one or more education terminals . Requests to replace the appearance of the teacher or student avatar placed in the virtual space, replace the teacher or student voice character, add specification data for a new object including the avatar, in the virtual space Change the sound that can be generated by the object to be placed, change the music that can be generated by the object, add the specification data of the student's avatar to the virtual space by the student himself, delete the object, delete the virtual space. With a reception data acquisition unit that acquires a request including at least one of addition of specification data of the teaching material object arranged in, deletion of the teaching material object, replacement of the teaching material object, and change of the specification of the teaching material object. The material data distribution unit includes a first material data changing unit that changes the first specification data to a second specification data different from the first specification data stored in response to the request. , after the first specification data is changed to the second specification data, and distributes the second specification data education terminal that requested the distribution, each of said one or more educational terminals, The educational content is composed of a reception data acquisition unit that acquires material data read from the first material data storage unit from the content distribution server, a second material data storage unit that stores the material data, and an educational content. The second material is in response to a request to change at least a part of the specification data indicating the specifications of a plurality of objects arranged in the virtual space only in the educational terminal. A second material data changing unit for changing a third specification data included in the material data stored in the data storage unit is provided, and the material data includes the third specification data and the motion data. Including, the third specification data is the first specification data when it is not changed by the content distribution server, and is the second specification data when it is changed by the content distribution server. The change of the third specification data by the second material data change unit is applied only to the educational terminal that makes the change.

Claims (11)

Material data distribution that distributes the first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content for distance learning and the motion data indicating the movement of the plurality of objects to the educational terminal. Department and
A reception data acquisition unit that acquires a request for changing at least a part of the first specification data received from an external device.
It is provided with a material data changing unit that changes the first specification data to a second specification data different from the first specification data in response to the request.
The material data distribution unit distributes the second specification data to the education terminal after the first specification data is changed to the second specification data.
Content distribution server. The content distribution server according to claim 1, wherein the request includes a request for replacing the appearance of an avatar included in the plurality of objects. The content distribution server according to claim 1 or 2, wherein the request includes a request for adding specification data of an object that is not included in the plurality of objects. The content distribution according to claim 3, wherein at least one of the size and appearance of the classroom object indicated by the second specification data depends on the number of avatars contained in the plurality of objects for which the second specification data is defined. server. Input data acquisition unit that acquires input data corresponding to a request for changing at least a part of the first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content for distance learning. When,
Class video data of the virtual space reproduced based on the second specification data in which the first specification data is changed based on the request and the motion data showing the movements of the plurality of objects. An educational terminal equipped with a playback unit that plays back along with class audio data. An input data reporting unit that reports the input data to the content distribution server,
A reception data acquisition unit that acquires the second specification data and the motion data received from the content distribution server, and
The educational terminal according to claim 5, further comprising a renderer that renders the lesson moving image data based on the second specification data and the motion data. An input data reporting unit that reports the input data to the content distribution server,
The educational terminal according to claim 5, further comprising a reception data acquisition unit that acquires the lesson video data based on the second specification data and the motion data received from the content distribution server. A material data changing unit that changes the first specification data to the second specification data in response to the request,
The educational terminal according to claim 5, further comprising a renderer that renders the lesson moving image data based on the second specification data and the motion data. A playback unit that reproduces reference content based on the first specification data that shows the specifications of the objects related to the presentation of the lesson content and the first motion data that shows the movement of the objects.
An input data acquisition unit that acquires a second motion data based on the movement of the user during playback of the reference content and voice data based on the voice of the user during playback of the reference content.
Remotely based on the first specification data, the second specification data indicating the specifications of the avatar corresponding to the user, the first motion data, the second motion data, and the voice data. A content creation device that includes a material data generation unit that generates material data used to reproduce the virtual space that composes educational content for classes. Computer,
A means for delivering to an educational terminal the first specification data indicating the specifications of a plurality of objects arranged in a virtual space constituting the educational content for distance learning and the motion data indicating the movement of the plurality of objects.
A means for obtaining a request for changing at least a part of the first specification data received from an external device.
It functions as a means for changing the first specification data to a second specification data different from the first specification data in response to the request.
The distribution means unit distributes the second specification data to the education terminal after the first specification data is changed to the second specification data.
Content distribution program. Computer,
A means of acquiring input data corresponding to a request for changing at least a part of the first specification data indicating the specifications of a plurality of objects arranged in the virtual space constituting the educational content for distance learning.
Class video data of the virtual space reproduced based on the second specification data in which the first specification data is changed based on the request and the motion data showing the movements of the plurality of objects. An educational program that functions as a means of playing back with lesson audio data.