CN107195210A - Two dimension and the three-dimensional teleeducation system combined and control method - Google Patents
Two dimension and the three-dimensional teleeducation system combined and control method Download PDFInfo
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- CN107195210A CN107195210A CN201710534633.4A CN201710534633A CN107195210A CN 107195210 A CN107195210 A CN 107195210A CN 201710534633 A CN201710534633 A CN 201710534633A CN 107195210 A CN107195210 A CN 107195210A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
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Abstract
The present invention relates to a kind of two dimension and the three-dimensional teleeducation system combined, including the teacher side and student side that remote server is connected with the remote server；The student side and the teacher side are additionally operable to download this two and three dimensions teaching material attended class from the remote server according to Virtual Space ID, and the two and three dimensions teaching material of download is loaded on display interface；The teacher side or student side are additionally operable to receive operation of the user to two and three dimensions teaching material, and generation teaching material operation information is sent to the remote server；The server is additionally operable to the synchronous forwarding teaching material operation information to the other teacher sides or student side for belonging to same Virtual Space, and the other teacher sides or student side synchronize display according to the teaching material operation information received.With good demonstration effect, the memory space of teaching material is small, compatible all advantages of traditional two-dimentional teaching material, it is possible to achieve long-range and local demonstration.
Description
Technical field
The present invention relates to internet teaching field, in particular to a kind of two dimension and the three-dimensional remote teaching system combined
System and a kind of two dimension and the three-dimensional teleeducation system control method combined.
Background technology
Internet education needs to improve the true substitution sense of student, improves the actual experience of student；Build virtual teaching
Environment can improve the actual experience of student, improve the learning initiative of student.
The tutoring system of current threedimensional model mainly has two kinds：The first carried out using real three dimensional practicality teaching and
Demonstration, is not only limited by place but also carries very inconvenient, while it is bad to be limited demonstrating effect by light and scene space, is made
Use very inconvenient.Second of use virtual three-dimensional scene and threedimensional model completely is imparted knowledge to students, the 3D model mesh of the technology
Function that is preceding simply to be shown in native client, being imparted knowledge to students without remote demonstration；Cause religion using virtual three-dimensional scenic completely simultaneously
Learn teaching material to involve great expense, system complexity is high, data volume is big, complicated interface alternation design.
The tutoring system for the threedimensional model imparted knowledge to students and demonstrated using real three dimensional practicality, its shortcoming is had：By field
Ground limitation carries very inconvenient, and it is bad to be limited demonstrating effect by light and scene space, uses very inconvenient.
Completely using the tutoring system of virtual three-dimensional scene and the threedimensional model of threedimensional model, its shortcoming has：It is whole three-dimensional
Scene involves great expense, and model data amount is difficult to greatly store and transmit, and system design is complicated, and interactive operation complexity is difficult to control to and made
With.
The content of the invention
The present invention is operated again to solve bad tutoring system demonstrating effect in the prior art, system complex, three-dimension interaction
It is miscellaneous to be difficult to control to and a kind of two dimension and the three-dimensional teleeducation system combined are proposed the problem of use, including remote server with
The teacher side and student side of the remote server connection；The remote server is used for according to the religion for being connected to the server
Shi Duan and student side formation Virtual Space, and push identical three-dimensional to being connected to the teacher side of same Virtual Space, student side
With two-dimentional teaching material information；The Virtual Space is attached to the set that one group of user of the server is formed；The teacher side
Be used to enter after the Virtual Space with student side, send local terminal and record live video stream and voice flow, and receive by
Other teacher sides of server forwarding or the video flowing and voice flow of student side, and shown according to the video flowing received
Show, played out according to the voice flow received；The student side and the teacher side be additionally operable to according to Virtual Space ID from
The remote server downloads the two and three dimensions teaching material that this is attended class, and the two and three dimensions teaching material of download is loaded into display
On interface；The teacher side or student side are additionally operable to receive operation of the user to two and three dimensions teaching material, generation teaching material operation
Information is sent to the remote server；The server is additionally operable to the synchronous forwarding teaching material operation information to belonging to same void
Intend other teacher sides or student side in space, the other teacher sides or student side are operated according to the teaching material received
Information synchronizes display.
Further, the teacher side or student side are additionally operable on the display interface for show two-dimentional teaching material raw
Into the transparent mark figure layer for covering the display interface, mapping operation, word of the user in the transparent mark figure layer are received
Labeling operation, is sent to the remote server by the mapping operation, label character operation in real time, and the remote server will
The mapping operation, label character operation are sent to other teacher sides or student side, other teacher sides or
Person's student side synchronizes real-time display according to the mapping operation, label character operation.
Further, the mapping operation includes drawing the operation of mark lines, draws callout box graphic operation, mark block diagram category
Property adjustment operation in one or more；When the mapping operation to draw during mark lines operation, the teacher side or student
End receives the mouse motion track point sequence that user operates formation on the display interface, and the mouse motion track point is used
Line segment is connected, and mark lines is formed in the transparent mark figure layer in the teacher side or student side, while the teacher side
Or the mouse motion track point sequence is sent to the remote server by student side, the remote server is by the mouse
Motion track point is sent to other described teacher sides or student side, and described other teacher sides or student side utilize the motion track
Point sequence forms mark lines in the transparent mark figure layer；
When the mapping operation is draws callout box graphic operation, the teacher side or student side receive user described aobvious
Show that the first click location information that formation is operated on interface and second clicks on positional information, the teacher side or student side are with described
First click location information and second clicks on upper left position and lower right position of the positional information for mark block diagram described
Generation mark block diagram in bright mark figure layer, while the first click location information and second are clicked on position by the teacher side or student side
Confidence breath is sent to the remote server, and the first click location information and second are clicked on positional information by the remote server
Be sent to other described teacher sides or student side, described other teacher sides or student side using the first click location information and
Second clicks on positional information forms as the upper left position and lower right position of mark block diagram in the transparent mark figure layer
Mark block diagram；The mark block diagram bag control rectangle block diagram, circular block diagram, oval block diagram；
When the mapping operation is the Attribute tuning operation of mark block diagram, the teacher side or student side receive user in institute
State and operate the mark block diagram of formation to select information and attribute configuration information on display interface, according to mark block diagram selection information and category
Property configuration information change it is described mark block diagram attribute and shown, while by it is described mark block diagram selection information and attribute set
Confidence breath is sent to the remote server, and the remote server will mark block diagram selection information and attribute configuration information is sent
To other described teacher sides or student side, described other teacher sides or student side utilize the mark block diagram selection information and attribute
Configuration information shows the mark block diagram after changing attribute in the transparent mark figure layer；The attribute configuration information includes color
Configuration information, transparency configuration information, size configuration information, position configuration information, anglec of rotation configuration information.
Further, the label character operation includes input text operation, word attribute setting operation；When the word
When labeling operation is input text operation, the teacher side or student side receive user and operate what is formed on the display interface
Position selects information, selects information to show text input box, the teacher in the transparent mark figure layer according to the position
End or student side continue to the word input information of user, and information is inputted in the transparent mark figure layer according to the word
Label character frame is shown, while select information and word input information to be sent to the remote server position, it is described
Position is selected information and word input information to be sent to other described teacher sides or student side, other described religions by remote server
Teacher end or student side select information and word input information to show word mark in the transparent mark figure layer using the position
Note frame；
When label character operation is word attribute operation, the teacher side or student side receive user described aobvious
Show that the label character frame that formation is operated on interface selects information and label character box properties configuration information, selected according to label character frame
Select information and label character box properties configuration information is changed the attribute of the label character block diagram and shown, while will be described
Label character frame selects information and label character box properties configuration information to be sent to the remote server, the remote server
Information and label character box properties configuration information is selected to be sent to other described teacher sides or student side label character frame, it is described
Other teacher sides or student side select information and label character box properties configuration information described using the label character frame
The label character frame after modification attribute is shown in bright mark figure layer；The attribute configuration information includes font configuration information, color
Configuration information, word size configuration information, position configuration information, anglec of rotation configuration information.
Further, the teacher side or student side are additionally operable on the display interface for show two-dimentional teaching material raw
Into the transparent mark figure layer for covering the display interface, the 2 D animation chain that user operates formation on the display interface is received
Information and/or animation attributes configuration information are selected in selecting, are set according to 2 D animation link selection information and/or animation attributes
Information Pull player plug-in plays 2 D animation in the transparent mark figure layer, while 2 D animation link is selected into information
And/or animation attributes configuration information and cartoon picture display location information are sent to the remote server.The remote service
2 D animation link selection information and/or animation attributes configuration information and cartoon picture display location information are sent to by device
Described other teacher sides or student side, described other teacher sides or student side using the 2 D animation link selection information and/
Or animation attributes configuration information and cartoon picture display location information are carried out in the transparent mark figure layer using player plug-in
Animation is played.
Further, the teacher side or student side are additionally operable to receive user on two-dimentional teaching material in two-dimentional teaching material
Selection information, the attribute configuration information of picture, the attribute for the picture changed in the two-dimentional teaching material, while the selection is believed
Breath, attribute configuration information are sent to remote server, and the remote server sends the selection information, attribute configuration information
To other described teacher sides or student side, described other teacher sides or student side are set according to the selection information, attribute
The attribute for the picture that information is changed in the two-dimentional teaching material；
And/or, the teacher side or student side are additionally operable to receive user on two-dimentional teaching material to dynamic in two-dimentional teaching material
The play operation information of picture, the animation in the two-dimentional teaching material is played according to the play operation information of the animation, while by institute
The play operation information for stating animation is sent to the remote server, and the remote server believes the play operation of the animation
Breath is sent to other teacher sides or student side, other teacher side or student side broadcasting according to the animation
Put operation information and carry out animation broadcasting；
And/or, the teacher side or student side are additionally operable to receive the window of video window of the user on two-dimentional teaching material
Attribute configuration information, the attribute for the video window changed according to the window attribute configuration information on the two-dimentional teaching material and progress
It has been shown that, while giving the remote server by the window attribute configuration information, the remote server belongs to the window
Property configuration information be sent to other described teacher sides or student side, described other teacher sides or student side are according to the window
The attribute for the video window that attribute configuration information is changed in the two-dimentional teaching material.
Further, the teacher side or student side are additionally operable to receive behaviour of the user on three-dimensional teaching material to 3D models
Make, the display information of 3D models in the three-dimensional teaching material according to the operation change to 3D models, while by described to 3D moulds
The operation of type is sent to the remote server, the remote server by the operation to 3D models be sent to it is described its
His teacher side or student side, described other teacher sides or student side generate 3D models more according to the operation to 3D models
New display information is simultaneously shown.
Further, the operation to 3D models includes multi-angle rotary model manipulation, disassembles model manipulation, plays three
Dimension module animation operation, the particle animation operation of trigger model, the sound behaviour of the special efficacy animation operation of trigger model, trigger model
Work, the moving operation of model, the zoom operations of model.
Further, the teacher side is additionally operable to generate the video speech control model letter for including student side selection information
Number, and the video speech control model signal is sent to the remote server, the remote server will be according to described
Student side selection information sends the video speech control model signal to student side corresponding with student side selection information,
Student's end subscriber of the video speech control model signal is received according to the video speech control model signal control
The video speech pattern of local terminal processed, the video speech pattern includes：Receive voice signal pattern；Receive vision signal pattern；
Send voice signal pattern；Vision signal sending mode.
On the other hand present invention also offers a kind of two dimension and the three-dimensional teleeducation system control method combined, the religion
System includes the teacher side and student side that remote server is connected with the remote server；The remote server is used for root
According to teacher side and student side the formation Virtual Space for being connected to the server, and to being connected to the teacher of same Virtual Space
End, student side push the two-dimentional teaching material information of the peacekeeping of identical three；The Virtual Space is attached to one group of use of the server
The set that family is formed；The control method comprises the following steps：
The teacher side and student side connect the Virtual Space, send local terminal and record live video stream and voice flow, and
The video flowing and voice flow of other teacher sides forwarded by server or student side are received, and is flowed into according to the video received
Row display, is played out according to the voice flow received；
The student side and the teacher side download what this was attended class according to Virtual Space ID from the remote server
Two and three dimensions teaching material, and the two and three dimensions teaching material of download is loaded on display interface；
The teacher side or student side receive operation of the user to two and three dimensions teaching material, generation teaching material operation information hair
Give the remote server；
The server sync forward the teaching material operation information to the other teacher sides for belonging to same Virtual Space or
Person's student side, the other teacher sides or student side synchronize display according to the teaching material operation information received.
The present invention by traditional two-dimentional teaching material (such as picture, pdf, ppt, video, flash animation etc.) and virtually three-dimensional mould
Type, which combines, is fabricated to teaching material, can solve the problem that using real three dimensional practicality the religion of the threedimensional model to be imparted knowledge to students and demonstrated
The shortcoming of system and the tutoring system for the threedimensional model for using virtual three-dimensional scene and threedimensional model completely.With demonstrating effect
Good, the memory space of teaching material is small, convenient storage and transmits, and system design is simple, simple to operate, compatible traditional two-dimentional teaching material
All advantages, while will not be by place, light, the limitation of scene space etc., it is possible to achieve long-range and local demonstration.
Brief description of the drawings
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematical without that should manage
Solve to carry out any limitation to the present invention, in the accompanying drawings：
Fig. 1 is the two-dimentional structural representation with the three-dimensional teleeducation system combined in some embodiments of the invention；
Fig. 2 is that the two dimension in some embodiments of the invention is illustrated with the three-dimensional teleeducation system control method flow combined
Figure.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The present invention combines the tutoring system of the tutoring system based on two-dimentional teaching material and three-dimensional teaching material, saves two systems
Cost, in order to realize local and remote demonstration, local operation information is synchronized to remote port, it is aobvious that remote port carries out parsing
Show.Embodiment is referring to following examples.
Embodiment one
As shown in figure 1, the invention provides a kind of two dimension and the three-dimensional teleeducation system 100 combined, including long-range clothes
Teacher side 120 and student side 130 that business device 110 is connected with the remote server 110；The remote server 110 is used for root
According to teacher side 120 and student side 130 the formation Virtual Space for being connected to the remote server 110, and to being connected to same void
Intend the teacher side 120 in space, student side 130 and push the two-dimentional teaching material information of the peacekeeping of identical three；The Virtual Space is attached to
The set that one group of user of the server 110 is formed；The teacher side 120 and student side 130 are used to enter the void
Intend after space, send local terminal and record live video stream and voice flow, and receive other teacher sides forwarded by server 110
120 or the video flowing and voice flow of student side 130, and shown according to the video flowing received, according to the language received
Sound stream is played out；The student side 130 and the teacher side 120 are additionally operable to according to Virtual Space ID from the remote service
Device downloads the two and three dimensions teaching material that this is attended class, and the two and three dimensions teaching material of download is loaded on display interface；It is described
Teacher side 120 or student side 130 are additionally operable to receive operation of the user to two and three dimensions teaching material, generate teaching material operation information
It is sent to the remote server 110；The server 110 is additionally operable to the synchronous forwarding teaching material operation information to belonging to same
The other teacher sides 120 or student side 130 of Virtual Space, the other teacher sides 120 or student side 130 are according to connecing
The teaching material operation information received synchronizes display.
The present invention by traditional two-dimentional teaching material (such as picture, pdf, ppt, video, flash animation etc.) and virtually three-dimensional mould
Type, which combines, is fabricated to teaching material, can solve the problem that using real three dimensional practicality the religion of the threedimensional model to be imparted knowledge to students and demonstrated
The shortcoming of system and the tutoring system for the threedimensional model for using virtual three-dimensional scene and threedimensional model completely.With demonstrating effect
Good, the memory space of teaching material is small, convenient storage and transmits, and system design is simple, simple to operate, compatible traditional two-dimentional teaching material
All advantages, while will not be by place, light, the limitation of scene space etc., it is possible to achieve long-range and local demonstration.
The teacher side 120 or student side 130 are additionally operable to generate on the display interface for show two-dimentional teaching material
The transparent mark figure layer of the display interface is covered, mapping operation, word mark of the user in the transparent mark figure layer is received
Note operation, is sent to the remote server 110, the remote server by the mapping operation, label character operation in real time
The mapping operation, label character operation are sent to other teacher sides 120 or student side 130 by 110, it is described other
Teacher side 120 or student side 130 according to the mapping operation, label character operation synchronize real-time display.
Specifically, the mapping operation includes drawing the operation of mark lines, draws callout box graphic operation, mark block diagram attribute
One or more in adjustment operation；When the mapping operation to draw during mark lines operation, the teacher side 120 or student
End 130 receives the mouse motion track point sequence that user operates formation on the display interface, by the mouse motion track
Point is connected with line segment, forms mark lines in the transparent mark figure layer in the teacher side 120 or student side 130, simultaneously
The mouse motion track point sequence is sent to the remote server 110 by the teacher side 120 or student side 130, described
The mouse motion track point is sent to other described teacher sides 120 or student side 130 by remote server 110, it is described other
Teacher side 120 or student side 130 form mark lines using the motion track point sequence in the transparent mark figure layer；
When the mapping operation is draws callout box graphic operation, the teacher side 120 or student side 130 receive user and existed
The the first click location information and second that formation is operated on the display interface click on positional information, the teacher side 120 or
130 are caused trouble using the first click location information and the second click positional information as the upper left positions and bottom right for marking block diagram
Angle Position generation mark block diagram in the transparent mark figure layer, while the teacher side 120 or student side 130 are clicked on first
Positional information and the second click positional information are sent to the remote server 110, and the remote server 110 is clicked on first
Positional information and the second click positional information are sent to other described teacher sides 120 or student side 130, other described teacher sides
120 or student side 130 by the use of the first click location information and second click on positional information be used as mark block diagram the upper left corner
Position and lower right position form mark block diagram in the transparent mark figure layer；The mark block diagram bag control rectangle block diagram, circle
Shape block diagram, oval block diagram；
When the mapping operation is the Attribute tuning operation of mark block diagram, the teacher side 120 or student side 130, which are received, to be used
Family operates the mark block diagram of formation to select information and attribute configuration information on the display interface, is believed according to mark block diagram selection
Breath and attribute configuration information change it is described mark block diagram attribute simultaneously shown, while by it is described mark block diagram selection information and
Attribute configuration information is sent to the remote server 110, and the remote server 110 will mark block diagram selection information and attribute
Configuration information is sent to other described teacher sides 120 or student side 130, and described other teacher sides 120 or student side 130 utilize institute
State the mark block diagram after mark block diagram selection information and attribute configuration information show modification attribute in the transparent mark figure layer；
The attribute configuration information includes color configuration information, transparency configuration information, size configuration information, position configuration information, rotation
Gyration configuration information.
Further, the label character operation includes input text operation, word attribute setting operation；When the word
When labeling operation is input text operation, the teacher side 120 or student side 130 receive user and operated on the display interface
The position selection information of formation, selects information to show text input box in the transparent mark figure layer, institute according to the position
State teacher side 120 or student side 130 continues to the word input information of user, information is inputted described according to the word
Label character frame is shown in bright mark figure layer, while it is described long-range to select information and word input information to be sent to the position
Position is selected information and word input information to be sent to other described teacher sides by server 110, the remote server 110
120 or student side 130, described other teacher sides 120 or student side 130 select information and word input information using the position
Label character frame is shown in the transparent mark figure layer；
When label character operation is word attribute operation, the teacher side 120 or student side 130 receive user and existed
The label character frame of formation is operated to select information and label character box properties configuration information on the display interface, according to word mark
Note frame selection information and label character box properties configuration information are changed the attribute of the label character block diagram and shown, simultaneously
Information and label character box properties configuration information is selected to be sent to the remote server 110 the label character frame, it is described
Label character frame is selected information and label character box properties configuration information to be sent to other described teachers by remote server 110
End 120 or student side 130, described other teacher sides 120 or student side 130 select information and text using the label character frame
Word marks the label character frame after box properties configuration information shows modification attribute in the transparent mark figure layer；The attribute is set
Confidence breath includes font configuration information, color configuration information, word size configuration information, position configuration information, the anglec of rotation and set
Confidence ceases.
The teacher side 120 or student side 130 are additionally operable to generate on the display interface for show two-dimentional teaching material
The transparent mark figure layer of the display interface is covered, user is received and operates the 2 D animation of formation to link on the display interface
Information and/or animation attributes configuration information are selected, is set and believed according to 2 D animation link selection information and/or animation attributes
Breath plays 2 D animation using player plug-in in the transparent mark figure layer, while the 2 D animation is linked into selection information
And/or animation attributes configuration information and cartoon picture display location information are sent to the remote server 110.The long-range clothes
Business device sends 2 D animation link selection information and/or animation attributes configuration information and cartoon picture display location information
To other described teacher sides 120 or student side 130, described other teacher sides 120 or student side 130 utilize the 2 D animation chain
Selecting is selected information and/or animation attributes configuration information and cartoon picture display location information and utilized in the transparent mark figure layer
Player plug-in carries out animation broadcasting.
The teacher side 120 or student side 130 are additionally operable to receive user on two-dimentional teaching material to the figure in two-dimentional teaching material
Selection information, the attribute configuration information of piece, the attribute for the picture changed in the two-dimentional teaching material, while by the selection information,
Attribute configuration information is sent to remote server 110, and the remote server 110 selects information, attribute configuration information by described
Other described teacher sides 120 or student side 130 are sent to, described other teacher sides 120 or student side 130 are according to the choosing
Select the attribute for the picture that information, attribute configuration information are changed in the two-dimentional teaching material；
And/or, the teacher side 120 or student side 130 are additionally operable to receive user on two-dimentional teaching material to two-dimentional teaching material
In animation play operation information, the animation in the two-dimentional teaching material is played according to the play operation information of the animation, together
When the play operation information of the animation is sent to the remote server 110, the remote server 110 is by the animation
Play operation information be sent to other teacher sides 120 or student side 130, other teacher sides 120 or
Student side 130 carries out animation broadcasting according to the play operation information of the animation；
And/or, the teacher side 120 or student side 130 are additionally operable to receive video window of the user on two-dimentional teaching material
Window attribute configuration information, the attribute for the video window changed according to the window attribute configuration information on the two-dimentional teaching material
And shown, while giving the remote server 110, the remote server 110 by the window attribute configuration information
The window attribute configuration information is sent to other described teacher sides 120 or student side 130, other described teacher sides 120
Or the attribute of video window of the student side 130 in the window attribute configuration information change two-dimentional teaching material.
The teacher side 120 or student side 130 are additionally operable to receive operation of the user on three-dimensional teaching material to 3D models, root
According to the display information of 3D models in three-dimensional teaching material described in the operation change to 3D models, while by described to 3D models
Operation is sent to the remote server 110, the remote server 110 by the operation to 3D models be sent to it is described its
His teacher side 120 or student side 130, described other teacher sides 120 or student side 130 are according to the operation to 3D models
Generation 3D model modifications display information is simultaneously shown.
The operation to 3D models include multi-angle rotary model manipulation, disassemble model manipulation, play threedimensional model move
Draw operation, the particle animation operation of trigger model, the sound operation of the special efficacy animation operation of trigger model, trigger model, model
Moving operation, the zoom operations of model.
Further, the teacher side 130 is additionally operable to generate the video speech control mould for including student side selection information
Formula signal, and the video speech control model signal is sent into the remote server, the remote server is by basis
The student side selection information sends the video speech control model signal and learned to corresponding with student side selection information
Cause trouble, the student's end subscriber for receiving the video speech control model signal is believed according to the video speech control model
The video speech pattern of number control local terminal, the video speech pattern includes：Receive voice signal pattern；Receive vision signal mould
Formula；Send voice signal pattern；Vision signal sending mode.The student side 130 is controlled by controlling video speech pattern
To vision signal and the handling process of voice signal.
Embodiment two
The idiographic flow for the teleeducation system operation that two dimension is combined with three-dimensional is as follows in the present invention：
1st, teacher end and student side connection remote server, into same Virtual Space room, described Virtual Space
It is attached to the set that one group of user of server end is formed.Server can push phase to the user for entering same Virtual Space
The teaching material of same three peacekeepings two dimension.(the teacher end and student side may have multiple.)
2nd, teacher end or student side enter after the virtual room space of server, all user terminal (all teachers
With society user) transmission of video flowing and voice flow can be carried out with server,.Each user terminal can send local terminal to server
The live video stream and voice flow of recording send voice and video stream.According to the setting of server end：, each user terminal can receive
N (the n forwarded by server>Video flowing and the voice stream reception video and voice from all other end at=0) other ends in road
Signal, each user terminal can be shown the video flowing received, the voice flow received be played out while also can be to
The user at all other end sends the video speech signal of local terminal.Now all teacher ends and student side can carry out long-range
Voice and video is conversed.
3rd, all users for entering same Virtual Space, start from long-range material server according to Virtual Space No. ID
The teaching material of this two and three dimensions attended class is downloaded, and the two and three dimensions teaching material of download is loaded into the display interface of user terminal
On.
4th, academics and students can start to attend class to enter the state of attending class after above-mentioned steps are completed.
5th, in class teacher is conversed and mouse with video speech, the mode such as gesture, operates the two and three dimensions teaching material downloaded
To students give lessons.The mode of operation has：Dimension model, two-dimensional operation pattern, three-dimensional manipulating pattern, video speech control mould
Formula.
Each mode operation conditions is as follows：
1. teacher end and student side all download the two dimension for being stored in server end by connection server in this tutoring system
Teaching material (such as picture, pdf, ppt, video, flash animation etc.) and threedimensional model teaching material.
2. teacher end and student side can mutually transmit real-time video and voice by server in this tutoring system, carry out
Implement video speech call.
3. dimension model：Dimension model is operated by teacher end in default situations, while can also be awarded by teacher
Weigh and operated to other user terminals.Dimension model is after one or more user terminals make marks on the teaching material of display, to incite somebody to action
Marking operation issues server, and being transmitted to other all user terminals by server synchronizes, and the effect finally realized is each
Individual user terminal shows the same flag state.(note：This pattern is on the picture after two-dimentional three-dimensional material normally display, to use
The mode of two dimension is marked to be explained to student.Just as teacher is drawn when ppt is said on ppt with picture pen)
Dimension model has following 4 aspects：：
1. enter after dimension model, first can be of a size transparent with display picture in each user terminal generation one
Figure layer is marked, and the figure layer is covered on existing display picture.All drafting operations are all in transparent mark below
Carried out in figure layer.
2. user terminal draws mark lines in display picture, user is moved with mouse in display image, by user terminal
Motion track point is recorded, and a series of tracing point is connected in local client formation mark lines, simultaneously with line segment
The motion track point can issue server in real time, then be transmitted to by server all other end subscribers, and other end subscribers are received
They can also be connected after to a series of tracing point to be formed marking line include in the mark figure layer of oneself,；Draw
Rectangle frame is marked, mark circular frame is drawn, the indicative symbol of the explanation such as mark oval frame is drawn, draws the indicative symbol of frame shape
Number when user first click on picture some positions decision block shape mark upper left position, then drag mouse decision block shape mark
The lower right corner of knowledge, the coordinate in the upper left corner and the lower right corner finally according to determination draws rectangle in the mark figure layer of local client
Frame or circular frame or oval frame etc., while server is issued in the upper left corner and bottom right angular coordinate that frame shape is identified, by servicing
Device is transmitted to other clients and carries out identical drafting；, the color of the described indicative symbol of explanation, transparency, size, position
Put, direction of rotation etc. can be adjusted setting, user's mouse right click on the indicative symbol for needing to set, according to ejection
Menu can select to set the color of indicative symbol, the color parameter such as transparency, can be in local client after being provided with
Middle to be shown, while can also upload onto the server, being transmitted to other clients by server does identical setting, and user is referring to
Mouse left click can use mouse drag and scale the position of the indicative symbol on the property shown symbol, and local client can be according to dragging
Indicative symbol is repainted with the position of the point of the indicative symbol after scaling and length and width data, and local client can be by
The data of the dragging and scaling are sent to server, and other user terminals are transmitted to by server, in other user terminals to being grasped
The indicative symbol made is repainted.
3. in display picture input word be labeled explanation, with mouse the need for local user side display picture it is defeated
The position for entering label character is clicked on, and then local user side can draw text input box in mark figure layer, input after word, text
Word callout box can be shown in mark figure layer, at the same local user side can by the positional information of label character and word content hair to
Server, other user terminals are transmitted to by server, and carrying out identical to the word callout box in other user terminals shows.Institute
It can be English, Chinese or other words to state word,.The font of the word, color, size, position, the anglec of rotation etc. all may be used
To set, in user terminal right click label character frame, font is selected, color, size, position, the different setting choosing such as the anglec of rotation
Item is configured, and local user side can again be shown according to the information of setting to the word callout box in mark figure layer, and
And by font, color, size, position, the information such as the anglec of rotation is sent to server, has server to forward the information to others
User terminal, shows in other user terminals to the label character income identical..
4. 2 D animation can be shown in display picture, click on two dimension first in local user side during display animation and move
The link (link of long-range URL animations or local animation file link) of picture then using player plug-ins such as flash in mark figure layer
The display for carrying out 2 D animation is played, while the position that the animation is linked and cartoon picture is shown can be issued clothes by local user side
Be engaged in device, other user terminals be transmitted to by server, other user terminals receive positional information that animation link and animation show it
Afterwards, the animation link transmitted is played in the positional information of transmission using player plug-ins such as flash in other user terminals, should
Cartoon picture is again shown in mark figure layer.The content of the animation, size, position, direction, playing progress rate etc. can be set
Put, local user side can be synchronized configuration information by server to other user terminals, other user terminals can be according to new
Display information is updated display.
4. two-dimensional operation pattern：The position of some pictures, size, color, transparency, rotation side in the two-dimentional teaching material of control
To local user first can carry out Pictures location, size, color, transparency, the operation of the display such as direction of rotation, such control
Information can issue server by local user side, and other user terminals are transmitted to by server, and other user terminals can be according to the control
The display of information updating picture, realizes the synchronization that the courseware of all user terminals is shown.Control the video window in video speech call
Animation is played in the position of mouth, size, color, transparency, direction of rotation, the two-dimentional teaching material of control.Such control information can be by this
Ground user terminal issues server, and other user terminals are transmitted to by server, and other user terminals can update according to the control information to be regarded
The display of image and the broadcasting of triggering teaching material animation, realize that the display of all user terminals is synchronous in frequency voice call.This pattern
Mode of operation has：Mouse is clicked on, mouse drag, and gesture motion etc..
5. three-dimensional manipulating pattern：The pattern is the operation to model after user terminal is loaded with 3D models.1. from polygonal
Rotating model is spent, mouse is moved on model and pulled, the left and right of mouse pulls the rotation for the horizontal angle that can change model
Angle, the anglec of rotation for pulling the angle of pitch that can change model up and down of mouse, the local user side during mouse drag
The anglec of rotation of the model operated can be issued server, other user terminals are transmitted to by server, in other users
End can be set the anglec of rotation of the model received onto attribute in the anglec of rotation of the model, realize the same of other end models
Step rotation.2. disassemble model (note：This mainly structure to student's demonstrating model) disassembled model is all by many height
The composite model of model composition, the process of disassembling is to be clicked on to choose a submodel of disassembled model to be moved by local user side
It is dynamic, repeat it is above-mentioned disassemble process and can realize disassembling for disassembled model, in disassembling actually pair for disassembled model
The movement of submodel, so it is exactly the moving operation information of sub- 3D models to be sent into server, by servicing that model, which disassembles process,
Device is transmitted to other user terminals, and other user terminals move the mould of local terminal oneself according to the mobile message of the submodel of reception
Type, so as to realize the synchronization for disassembling model.3. playing threedimensional model animation, threedimensional model animation is played in local user side triggering
Afterwards, the trigger signal can be sent to server, and trigger signal is forwarded into other user terminals, other users by server
Hold the threedimensional model animation that local terminal is played after trigger signal is received.4. the particle animation effect of trigger model is (as demonstrated
Cyclone, smog, fluid and other effects), after the particle animation that local user side triggers playing model, the trigger signal can be sent out
Server is sent to, trigger signal other user terminals are forwarded to by server, other user terminals are receiving trigger signal
The particle animation of the model of local terminal is played afterwards.5. the special efficacy animation of trigger model.Playing model is triggered in local user side
After special efficacy animation, the trigger signal can be sent to server, and trigger signal is forwarded into other user terminals by server, its
Its user terminal plays the special efficacy animation of the model of local terminal after trigger signal is received.6. the sound of trigger model, at this
After the sound of ground user terminal triggering playing model, the trigger signal can be sent to server, be turned trigger signal by server
Other user terminals are dealt into, other user terminals play the sound of the model of local terminal after trigger signal is received.7. model
Movement, rotation, scaling etc. animation, model is moved in local user side, rotate, while scaling, the shifting of the model
Dynamic, rotation, scalability information data can be sent to server, the information data is forwarded into other user terminals by server, its
Its user terminal is receiving the movement of model, rotation, and the movement of the model of local terminal, rotation are applied to after scalability information data
Turn, on scale attributes, realize simultaneously operating.
6. video speech control model：1. whether control user terminal receives voice signal.2. whether control user terminal receives
Vision signal.3. whether control user terminal sends voice signal.4. whether control user terminal sends vision signal.Video speech control
Molding formula is controlled by teacher end, teacher end when setting the video speech control model signal of one or more student sides,
The set information can be sent to server by teacher end, and the control is being sent to one or more student sides of setting by server
The signal of pattern, student side controls described video language according to the mode signal after the control model signal is received
4 kinds of patterns of sound control.
7. teacher end control instruction：Include 2. 3. 4. 5. 6. described control instruction.
8. student side control instruction：Include 2. 3. 4. 5. 6. described control instruction.
9. described threedimensional model teaching material refers to utilize 3dmax, Maya, and the foundation such as SketchUp includes texture mapping,
Comprising material, comprising brightness attribute, the 3D models comprising animation, the threedimensional model is being stored to server after overcompression
On, actually each user terminal of class hour can be downloaded from a server, and load required 3D models.
10. described two-dimentional teaching material includes：Picture, pdf, ppt, video, flash animation etc., two-dimentional teaching material is after being compressed
Store on server, actually each user terminal of class hour can be downloaded from server, and load required two-dimentional teaching material.
The present invention by traditional two-dimentional teaching material (such as picture, pdf, ppt, video, flash animation etc.) and virtually three-dimensional mould
Type, which combines, is fabricated to teaching material, can solve the problem that using real three dimensional practicality the religion of the threedimensional model to be imparted knowledge to students and demonstrated
The shortcoming of system and the tutoring system for the threedimensional model for using virtual three-dimensional scene and threedimensional model completely.With demonstrating effect
Good, the memory space of teaching material is small, convenient storage and transmits, and system design is simple, simple to operate, compatible traditional two-dimentional teaching material
All advantages, while will not be by place, light, the limitation of scene space etc., it is possible to achieve long-range and local demonstration.
Embodiment three
As shown in Fig. 2 another aspect of the present invention provides a kind of two dimension and the three-dimensional teleeducation system controlling party combined
Method, the tutoring system includes the teacher side and student side that remote server is connected with the remote server；The long-range clothes
Business device is used for according to teacher side and student side the formation Virtual Space for being connected to the server, and to being connected to same virtual sky
Between teacher side, student side push the two-dimentional teaching material information of identical three peacekeeping；The Virtual Space is attached to the server
One group of user formed set；The control method comprises the following steps：
S1, the teacher side and student side connect the Virtual Space, send local terminal and record live video stream and voice flow,
And the video flowing and voice flow of other teacher sides forwarded by server or student side are received, and according to the video flowing received
It has been shown that, played out according to the voice flow received；
S2, the student side and the teacher side are downloaded this from the remote server according to Virtual Space ID and attended class
Two and three dimensions teaching material, and the two and three dimensions teaching material of download is loaded on display interface；
S3, the teacher side or student side receive operation of the user to two and three dimensions teaching material, generation teaching material operation letter
Breath is sent to the remote server；
S4, the server sync forward the teaching material operation information to the other teacher sides for belonging to same Virtual Space
Or student side, the other teacher sides or student side synchronize display according to the teaching material operation information received.
Operation information of the user to the two-dimentional teaching material of three peacekeepings is received in the step S3 and step S4, and generates local terminal and is shown
Content, while operation information to be sent to pair of distal end student side or the synchronous parsing generation display content of teacher by server
The various operator schemes (dimension model, two-dimensional operation pattern, three-dimensional manipulating pattern, video speech control model) answered are referring to implementation
The operation of each pattern in example two.
Method in the present invention is by traditional two-dimentional teaching material (such as picture, pdf, ppt, video, flash animation etc.) and virtual
Threedimensional model combine and be fabricated to teaching material, can solve the problem that using real three dimensional practicality the three-dimensional to be imparted knowledge to students and demonstrated
The shortcoming of the tutoring system of model and the tutoring system for the threedimensional model for using virtual three-dimensional scene and threedimensional model completely.Have
Good demonstration effect, the memory space of teaching material is small, and convenient storage and transmission, system design are simple, simple to operate, compatible traditional
All advantages of two-dimentional teaching material, while will not be by place, light, the limitation of scene space etc., it is possible to achieve long-range and local
Demonstration.
In the present invention, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicate or
Imply relative importance.Term " multiple " refers to two or more, unless otherwise clear and definite restriction.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of two dimension and the three-dimensional teleeducation system combined, it is characterised in that including remote server and the long-range clothes
The teacher side and student side of business device connection；The remote server is used for according to teacher side and the student for being connected to the server
End forms Virtual Space, and pushes the two-dimentional teaching material of the peacekeeping of identical three to being connected to the teacher side of same Virtual Space, student side
Information；The Virtual Space is attached to the set that one group of user of the server is formed；The teacher side and student side are used
Live video stream and voice flow are recorded in after the Virtual Space is entered, sending local terminal, and reception is forwarded by server
Other teacher sides or student side video flowing and voice flow, and shown according to the video flowing received, according to reception
To voice flow play out；The student side and the teacher side are additionally operable to according to Virtual Space ID from the remote service
Device downloads the two and three dimensions teaching material that this is attended class, and the two and three dimensions teaching material of download is loaded on display interface；It is described
Teacher side or student side are additionally operable to receive operation of the user to two and three dimensions teaching material, and generation teaching material operation information is sent to institute
State remote server；The server be additionally operable to the synchronous forwarding teaching material operation information to belong to same Virtual Space other
Teacher side or student side, the other teacher sides or student side are synchronized according to the teaching material operation information received
Display.
2. two dimension according to claim 1 and the three-dimensional teleeducation system combined, it is characterised in that the teacher side or
Person's student side is additionally operable to the transparent mark of the generation covering display interface on the display interface for show two-dimentional teaching material
Figure layer, receive user it is described it is transparent mark figure layer on mapping operation, label character operation, in real time by the mapping operation,
Label character operation is sent to the remote server, and the remote server sends out the mapping operation, label character operation
Other teacher sides or student side are given, the other teacher sides or student side are according to the mapping operation, text
Word labeling operation synchronizes real-time display.
3. two dimension according to claim 2 and the three-dimensional teleeducation system combined, it is characterised in that the mapping operation
Including the one or more drawn the operation of mark lines, drawn in callout box graphic operation, the Attribute tuning operation of mark block diagram；Work as institute
Mapping operation is stated to draw during mark lines operation, the teacher side or student side receive user and operated on the display interface
The mouse motion track point sequence of formation, the mouse motion track point is connected with line segment, in the teacher side or student side
The transparent mark figure layer on form mark lines, while the teacher side or student side are by the mouse motion track point sequence
Row are sent to the remote server, and the mouse motion track point is sent to other described teacher sides by the remote server
Or student side, described other teacher sides or student side are formed using the motion track point sequence in the transparent mark figure layer
Mark lines；
When the mapping operation is draws callout box graphic operation, the teacher side or student side receive user in display circle
The the first click location information and second that formation is operated on face click on positional information, and the teacher side or student side are with described first
Click location information and second clicks on upper left position and lower right position of the positional information for mark block diagram in the transparent mark
Generation mark block diagram in figure layer is noted, while the teacher side or student side believe the first click location information and the second click location
Breath is sent to the remote server, and the first click location information and second are clicked on positional information and sent by the remote server
To other described teacher sides or student side, described other teacher sides or student side utilize the first click location information and second
Click location information is formed in the transparent mark figure layer as the upper left position and lower right position of mark block diagram and marked
Block diagram；The mark block diagram bag control rectangle block diagram, circular block diagram, oval block diagram；
When the mapping operation is the Attribute tuning operation of mark block diagram, the teacher side or student side receive user described aobvious
Show that the mark block diagram that formation is operated on interface selects information and attribute configuration information, set according to mark block diagram selection information and attribute
The attribute of the confidence breath change mark block diagram is simultaneously shown, while setting and believing the mark block diagram selection information and attribute
Breath is sent to the remote server, and the remote server will mark block diagram selection information and attribute configuration information is sent to institute
Other teacher sides or student side are stated, described other teacher sides or student side are set using the mark block diagram selection information and attribute
Information shows the mark block diagram after changing attribute in the transparent mark figure layer；The attribute configuration information is set including color
Information, transparency configuration information, size configuration information, position configuration information, anglec of rotation configuration information.
4. two dimension according to claim 2 and the three-dimensional teleeducation system combined, it is characterised in that the label character
Operation includes input text operation, word attribute and sets operation；It is described when label character operation is input text operation
Teacher side or student side receive user and operate the position of formation to select information on the display interface, are selected according to the position
Information shows text input box in the transparent mark figure layer, and the word that the teacher side or student side continue to user is defeated
Enter information, inputting information in the transparent mark figure layer according to the word shows label character frame, while by the position
Selection information and word input information are sent to the remote server, and position is selected information and word by the remote server
Input information is sent to other described teacher sides or student side, and described other teacher sides or student side select letter using the position
Breath and word input information show label character frame in the transparent mark figure layer；
When label character operation is word attribute operation, the teacher side or student side receive user in display circle
Operate the label character frame of formation to select information and label character box properties configuration information on face, selected to believe according to label character frame
The attribute that breath and label character box properties configuration information change the label character block diagram simultaneously shown, while by the word
Callout box selects information and label character box properties configuration information to be sent to the remote server, and the remote server is by text
Word callout box selects information and label character box properties configuration information to be sent to other described teacher sides or student side, it is described other
Teacher side or student side select information and label character box properties configuration information in the transparent mark using the label character frame
The label character frame after modification attribute is shown in note figure layer；The attribute configuration information includes font configuration information, color and set
Information, word size configuration information, position configuration information, anglec of rotation configuration information.
5. two dimension according to claim 1 and the three-dimensional teleeducation system combined, it is characterised in that the teacher side or
Person's student side is additionally operable to the transparent mark of the generation covering display interface on the display interface for show two-dimentional teaching material
Figure layer, receives user and operates the 2 D animation of formation to link selection information and/or animation attributes setting on the display interface
Information, according to 2 D animation link selection information and/or animation attributes configuration information using player plug-in described transparent
Mark figure layer and play 2 D animation, while 2 D animation link is selected into information and/or animation attributes configuration information and dynamic
Draw picture position information and be sent to the remote server, the remote server believes 2 D animation link selection
Breath and/or animation attributes configuration information and cartoon picture display location information are sent to other described teacher sides or student side, institute
Other teacher sides or student side is stated to draw using 2 D animation link selection information and/or animation attributes configuration information and animation
Face display location information carries out animation broadcasting in the transparent mark figure layer using player plug-in.
6. two dimension according to claim 1 and the three-dimensional teleeducation system combined, it is characterised in that the teacher side or
Person's student side is additionally operable to receive selection information, attribute configuration information of the user on two-dimentional teaching material to the picture in two-dimentional teaching material,
The attribute for the picture changed in the two-dimentional teaching material, while the selection information, attribute configuration information are sent into remote service
The selection information, attribute configuration information are sent to other described teacher sides or student side, institute by device, the remote server
State the picture that other teacher sides or student side are changed in the two-dimentional teaching material according to the selection information, attribute configuration information
Attribute；
And/or, the teacher side or student side are additionally operable to receive user on two-dimentional teaching material to the animation in two-dimentional teaching material
Play operation information, the animation in the two-dimentional teaching material is played according to the play operation information of the animation, while will be described dynamic
The play operation information of picture is sent to the remote server, and the remote server sends out the play operation information of the animation
Other teacher sides or student side are given, the other teacher sides or student side are grasped according to the broadcasting of the animation
Make information and carry out animation broadcasting；
And/or, the teacher side or student side are additionally operable to receive the window attribute of video window of the user on two-dimentional teaching material
Configuration information, the attribute for the video window changed according to the window attribute configuration information on the two-dimentional teaching material is simultaneously shown
Show, while give the remote server by the window attribute configuration information, the remote server is by the window attribute
Configuration information is sent to other described teacher sides or student side, and described other teacher sides or student side belong to according to the window
Property the attribute of video window changed in the two-dimentional teaching material of configuration information.
7. two dimension according to claim 1 and the three-dimensional teleeducation system combined, it is characterised in that the teacher side or
Person's student side is additionally operable to receive operation of the user on three-dimensional teaching material to 3D models, according to the operation change institute to 3D models
The display information of 3D models in three-dimensional teaching material is stated, while the operation to 3D models is sent to the remote server,
The operation to 3D models is sent to other described teacher sides or student side, other described teachers by the remote server
End or student side generate 3D model modifications display information according to the operation to 3D models and shown.
8. two dimension according to claim 7 and the three-dimensional teleeducation system combined, it is characterised in that described to 3D models
Operation include multi-angle rotary model manipulation, disassemble model manipulation, play threedimensional model animation operation, the particle of trigger model
Animation operation, the special efficacy animation operation of trigger model, the sound operation of trigger model, the moving operation of model, the scaling of model
Operation.
9. two dimension according to claim 1 and the three-dimensional teleeducation system combined, it is characterised in that the teacher side is also
Include the video speech control model signal that student side selects information for generating, and the video speech control model is believed
The remote server number is sent to, the remote server will select information to send the video speech according to the student side
Control model signal receives the video speech control model signal to student side corresponding with student side selection information
Student's end subscriber according to the video speech control model signal control local terminal video speech pattern, the video language
Sound pattern includes：Receive voice signal pattern；Receive vision signal pattern；Send voice signal pattern；Vision signal sends mould
Formula.
10. a kind of two dimension and the three-dimensional teleeducation system control method combined, it is characterised in that the tutoring system includes remote
Teacher side and student side that journey server is connected with the remote server；The remote server is used for according to being connected to
Teacher side and student side the formation Virtual Space of server, and pushed to being connected to the teacher side of same Virtual Space, student side
The peacekeeping of identical three two dimension teaching material information；The Virtual Space is attached to the set that one group of user of the server is formed；
The control method comprises the following steps：
The teacher side and student side connect the Virtual Space, send local terminal and record live video stream and voice flow, and receive
Other teacher sides or the video flowing and voice flow of student side forwarded by server, and shown according to the video flowing received
Show, played out according to the voice flow received；
The student side and the teacher side download this two dimension attended class according to Virtual Space ID from the remote server
With three-dimensional teaching material, and the two and three dimensions teaching material of download is loaded on display interface；
The teacher side or student side receive operation of the user to two and three dimensions teaching material, and generation teaching material operation information is sent to
The remote server；
The server sync forwards the teaching material operation information to the other teacher sides or for belonging to same Virtual Space
Cause trouble, the other teacher sides or student side synchronize display according to the teaching material operation information received.
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| CN110992746A (en) * | 2019-11-06 | 2020-04-10 | 北京市博汇科技股份有限公司 | Group discussion teaching method and system |
| CN111641878A (en) * | 2020-06-03 | 2020-09-08 | 天津卓朗科技发展有限公司 | Three-dimensional model display method and device and electronic equipment |
| CN112215933A (en) * | 2020-10-19 | 2021-01-12 | 南京大学 | Three-dimensional solid geometry drawing system based on pen type interaction and voice interaction |
| CN112215933B (en) * | 2020-10-19 | 2024-04-30 | 南京大学 | Three-dimensional solid geometry drawing system based on pen type interaction and voice interaction |
| CN114025147A (en) * | 2021-11-01 | 2022-02-08 | 华中师范大学 | Data transmission method and system for VR teaching, electronic equipment and storage medium |
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