CN112309187A - Virtual reality teaching method, device and system - Google Patents
Virtual reality teaching method, device and system Download PDFInfo
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- CN112309187A CN112309187A CN202011191097.0A CN202011191097A CN112309187A CN 112309187 A CN112309187 A CN 112309187A CN 202011191097 A CN202011191097 A CN 202011191097A CN 112309187 A CN112309187 A CN 112309187A
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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
- G09B5/10—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations all student stations being capable of presenting the same information simultaneously
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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
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
Abstract
The invention provides a virtual reality teaching method, a device and a system; the method comprises the following steps: the teaching control end responds to a first trigger operation of a user and displays a control interface of the teaching resource to be synchronized; the teaching resource to be synchronized at least comprises: teaching application; in a first teaching mode, if the starting operation of a user for a specified teaching application in a control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently; the student terminal receives the first synchronous operation instruction, if the designated teaching application is an application installed at the cloud end, a starting request of the designated teaching application is sent to the cloud end, and the cloud end selects a target cloud rendering server to start a designated teaching application process after receiving the starting request. Therefore, the performance requirements on the student terminal can be reduced, and the application range under various teaching scenes is widened.
Description
Technical Field
The invention relates to the technical field of cloud computing, in particular to a virtual reality teaching method, a virtual reality teaching device and a virtual reality teaching system.
Background
The novel teaching mode that virtual reality technique and teaching combined together can improve the efficiency and the interest of teaching greatly, has the advantage of immersing sense good, experience true etc..
In the existing VR teaching scheme, in order to realize the sharing of teaching contents, the adopted mode is that the teaching contents such as courseware and videos are installed locally on the VR helmet of each student, and then the students can control and learn locally on the VR helmet.
The inventor of the present invention finds in research that the way of installing the teaching content in the VR headset local is single in the form of the teaching content, and in a teaching application scenario where the teaching content is relatively complex and huge, if the way of installing the teaching content in the VR headset local is still adopted, the VR headset needs to have relatively good performance conditions such as storage, video memory and the like, thereby limiting the application range of VR teaching.
Disclosure of Invention
In view of this, the present invention provides a virtual reality teaching method, device and system, so as to improve the application range of VR teaching in each teaching scene.
Specifically, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a virtual reality teaching method, where the method includes:
the teaching control end responds to a first trigger operation of a user and displays a control interface of the teaching resource to be synchronized; the teaching resources to be synchronized are selected by the user at the teaching control terminal and distributed to the student terminals currently to be synchronized in content, and the teaching resources to be synchronized at least comprise: teaching application;
in a first teaching mode, if the starting operation of a user for a specified teaching application in the control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently;
the student terminal receives the first synchronous operation instruction, and if the specified teaching application is an application installed at a cloud end, the student terminal sends a starting request of the specified teaching application to the cloud end so that the cloud end selects a target cloud rendering server to start a specified teaching application process after receiving the starting request, the target cloud rendering server is used for responding to control operation of the student terminal, generating a first video stream to be played and sending the first video stream to be played to the student terminal;
and the student terminal receives the first video stream to be played for decoding and playing.
In a second aspect, an embodiment of the present invention provides a virtual reality teaching method, where the method is applied to a cloud, and the method includes:
receiving a starting request of a designated teaching application sent by each student terminal to be subjected to content synchronization, and respectively selecting a target cloud rendering server for each student terminal to be subjected to content synchronization to start a path of designated teaching application process; the student terminals to be subjected to content synchronization send a starting request of the specified teaching application to the cloud terminal under the condition of receiving an instruction of synchronously running the specified teaching application, which is issued by a teaching control terminal;
after the appointed teaching application process is started, the target cloud rendering server responds to the corresponding control operation of the student terminal to render and generate an application picture;
and coding the application picture according to a first coding parameter to generate a first video stream to be played, and issuing the first video stream to be played to the corresponding student terminal for playing.
In a third aspect, an embodiment of the present invention provides a virtual reality teaching system, where the system includes: a teaching control terminal and a student terminal,
the teaching control terminal is used for responding to a first trigger operation of a user and displaying a control interface of teaching resources to be synchronized; the teaching resources to be synchronized are selected by the user at the teaching control terminal and distributed to the student terminals to be synchronized, and the teaching resources to be synchronized at least comprise: teaching application;
in a first teaching mode, if the starting operation of a user for a specified teaching application in the control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently;
the student terminal is used for receiving the first synchronous operation instruction, and if the specified teaching application is an application installed at a cloud end, sending a starting request of the specified teaching application to the cloud end so that the cloud end selects a target cloud rendering server to start a specified teaching application process after receiving the starting request, wherein the target cloud rendering server is used for responding to control operation of the student terminal, generating a first video stream to be played, and sending the first video stream to be played to the student terminal;
and the student terminal is also used for receiving the first video stream to be played and decoding and playing the first video stream to be played.
In a fourth aspect, an embodiment of the present invention provides a virtual reality teaching apparatus, where the apparatus is applied to a cloud, and the apparatus includes:
the starting module is used for receiving a starting request of the appointed teaching application sent by each student terminal to be subjected to content synchronization, and selecting a target cloud rendering server to start a path of appointed teaching application process for each student terminal to be subjected to content synchronization; the student terminals to be subjected to content synchronization send a starting request of the specified teaching application to the cloud terminal under the condition of receiving an instruction of synchronously running the specified teaching application, which is issued by a teaching control terminal;
the rendering module is used for responding to the corresponding control operation of the student terminal through the target cloud rendering server to render and generate an application picture after the designated teaching application process is started;
the first generation module is used for encoding the application picture according to a first encoding parameter through the target cloud rendering server to generate a first video stream to be played, and sending the first video stream to be played to the corresponding student terminal to be played.
In a fifth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method according to the second aspect.
In a sixth aspect, an embodiment of the present invention further provides a computer device, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps according to the second aspect when executing the program stored in the memory.
In the virtual reality teaching method, apparatus, and system provided in the embodiments of the present invention, a teaching control end responds to a first trigger operation of a user to display a control interface of a teaching resource to be synchronized, where the teaching resource to be synchronized presented in the control interface refers to teaching content selected by the user at the teaching control end and distributed to a student terminal currently to be content-synchronized, and the teaching content at least includes: and (5) teaching application. In a first teaching mode, if a teaching control end detects that a user aims at the starting operation of a specified teaching application in a control interface of a resource to be synchronized, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently by the teaching control end; the student terminal receives a first synchronous operation instruction, if the designated teaching application is an application installed at the cloud end, a starting request of the designated teaching application is sent to the cloud end, so that the cloud end selects a target cloud rendering server to start a designated teaching application process after receiving the starting request of the designated teaching application, after the designated application process is started, the target cloud rendering server responds to the control operation of the student terminal to generate a first video stream to be played, the first video stream to be played is sent to the student terminal, and the student terminal receives the first video stream to be played to decode and play. Furthermore, in the embodiment of the application, a teacher can prepare and distribute teaching contents in advance for a certain teaching scene, and can respectively start a path of teaching application process at a cloud end for each student terminal to be synchronized in contents, so that the teaching application does not need to be deployed and installed at the student terminal in advance, the performance requirements on the student terminal are reduced, and the application range under each teaching scene is improved.
Drawings
Fig. 1 is a schematic view of an application scenario of a virtual reality teaching method according to an exemplary embodiment of the present invention;
FIG. 2 is a flow chart diagram illustrating a virtual reality instruction method in accordance with an exemplary embodiment of the present invention;
FIG. 3a is a diagram illustrating a control interface for a tutorial resource to be synchronized in accordance with an exemplary embodiment of the present invention;
FIG. 3b is a diagram illustrating a distribution interface of a native application in accordance with an illustrative embodiment of the present invention;
fig. 3c is a schematic diagram illustrating a distribution interface of a cloud application according to an exemplary embodiment of the present invention;
FIG. 3d is a diagram illustrating an application content management interface in accordance with an illustrative embodiment of the present invention;
FIG. 3e is a diagram illustrating a content monitoring interface according to an exemplary embodiment of the invention
FIG. 4 is a schematic flow chart diagram illustrating another teaching method in accordance with an exemplary embodiment of the present invention;
fig. 5 is a schematic diagram illustrating generation of a second video stream to be played according to an exemplary embodiment of the present invention;
fig. 6 is a schematic structural composition diagram of a virtual reality teaching system according to an exemplary embodiment of the present invention;
fig. 7 is a schematic structural diagram of a virtual reality teaching apparatus according to an exemplary embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating the components of a computer device according to an exemplary embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the prior VR teaching mode, if teaching contents such as courseware, teaching videos and the like are only installed on the local area of the VR helmet, the problem that the teaching contents are easily limited by the performance of the VR helmet is solved, so that the types and the quantity of the teaching contents which can be used in the VR teaching mode are limited, and the teaching resources are not rich enough; based on this, the embodiment of the application provides a virtual reality teaching method, a device and a system. The present application is described in detail below with reference to specific examples.
Fig. 1 is a schematic view of an application scenario of a virtual reality teaching method provided in an embodiment of the present application; referring to fig. 1, in this embodiment, a user such as a teaching teacher preselects a teaching resource at a teaching control terminal 10, distributes the selected teaching resource to each student terminal currently participating in a teaching activity, and after the distribution is completed, the teaching teacher controls, at the teaching control terminal, a student terminal 30 to be subjected to content synchronization to synchronously run operations such as start and stop of the teaching resource to be synchronized, where the teaching resource to be synchronized includes: applications, pictures, audio and video, etc.; wherein, the application comprises an application running at the cloud end and an application running at the local part of the student terminal, the teaching control end detects that a user triggers a designated teaching application to synchronously run at the student terminal 30 to be subjected to content synchronization, if the application runs at the cloud end, the student terminal requests the cloud end 20 to start the designated teaching application, the cloud end receives the start request of the designated teaching application and starts the designated teaching application process on the target cloud rendering server, the student terminal generates a control instruction in response to the control operation of the user, taking the student terminal as a VR all-in-one machine as an example, the student terminal sends the control instruction and the posture information of the student terminal to the target cloud rendering server, the target cloud rendering server executes the control instruction to generate a first video stream which is matched with the field range of the student terminal according to the posture information of the student terminal, and sending the first video stream to the student terminal for decoding and playing.
Furthermore, in the embodiment of the application, the students can use the cloud application and the local application to perform learning operation at the student terminals, so that the requirements on the performance of the terminals are reduced, and the types and the number of the applications which can be used in each teaching scene are increased.
The above-mentioned student terminal of this application can be including: equipment such as VR integrated machine, mobile phone, tablet computer and the like; the teaching control terminal can also comprise: PC, cell-phone, panel computer etc.. The teaching control terminal is in communication connection with the student terminal.
FIG. 2 is a flow chart diagram illustrating a virtual reality instruction method in accordance with an exemplary embodiment of the present invention; referring to FIG. 2, the method includes the following steps S20-S80:
s20, the teaching control end responds to the first trigger operation of the user and displays a control interface of the teaching resource to be synchronized; the teaching resources to be synchronized are selected by the user at the teaching control terminal and distributed to the student terminals to be synchronized, and the teaching resources to be synchronized at least comprise: and (5) teaching application.
In a possible embodiment of the present application, the teaching resources to be synchronized may be resources of types including teaching applications (including local applications and cloud applications), panoramic video resources, panoramic image resources, 3D scene resources, and 3D model resources.
FIG. 3a is a schematic diagram of a control interface for a teaching resource to be synchronized according to an exemplary embodiment of the present application; referring to fig. 3a, the control interface includes a classification of the teaching resources to be synchronized (for example, the illustration includes a classification of video content, application content, and a panorama), a picture identifier of each teaching resource to be synchronized, and a state of the teaching resources to be synchronized (for example, when the teaching resources to be synchronized are applications, the state includes an application running state, running time, and the like). In the embodiment of the application, a user can trigger the teaching control terminal to display the control interface of the teaching resource to be synchronized by clicking the operation mode of the 'teaching content control' option in the management platform interface of the teaching control terminal.
In this embodiment, the student terminals may refer to all student terminals in the same classroom (physical classroom or virtual classroom), or may be student terminals in the same learning group, and may be any student terminal designated by the current teacher.
Further, optionally, the teaching teacher may configure different resources to be synchronized according to the grouping of different student terminals, so as to implement personalized teaching.
And S40, in a first teaching mode, if the starting operation of a user for a specified teaching application in the control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently.
The first teaching mode is a mode in which a teaching teacher centrally controls student terminals to be synchronized in content at a teaching control end, and in this mode, a user (for example, a teaching teacher) performs unified control of starting and exiting of teaching applications of the current student terminals or starting and stopping of playing of other multimedia teaching contents at the teaching control end.
Illustratively, with reference to the embodiment shown in fig. 3a, a user clicks a start control of an icon (picture identifier) of a "VR application 1" to trigger each current student terminal to perform content synchronization to synchronously run the "VR application 1", illustratively, the teaching control end generates a first synchronous running instruction of the "VR application 1" in response to a click operation of the user on the start control, and sends the first synchronous running instruction of the "VR application 1" to each student terminal, where the first synchronous running instruction includes information of the "VR application 1".
S60, the student terminal receives the first synchronous operation instruction, if the specified teaching application is an application installed at a cloud end, a starting request of the specified teaching application is sent to the cloud end, so that the cloud end selects a target cloud rendering server to start a specified teaching application process after receiving the starting request, the target cloud rendering server is used for responding to control operation of the student terminal, generating a first video stream to be played, and sending the first video stream to be played to the student terminal.
In this embodiment, after receiving a first synchronous operation instruction of a designated teaching application, a student terminal first determines whether the designated teaching application is an application installed locally (local application) or an application installed in a cloud (cloud application), and if the designated teaching application is an application installed in the cloud, the student terminal SDK requests the cloud to start the designated teaching application.
And after receiving a starting request of the specified teaching application sent by the student terminal, the cloud terminal selects a target cloud rendering server to start the specified teaching application process according to the resource scheduling strategy.
And S80, the student terminal receives the first video stream to be played for decoding and playing.
In the above embodiment of the present application, the method further includes the following step S100:
and S100, if the designated teaching application is an application installed in the local, the student terminal locally starts the designated teaching application.
In this embodiment, for a specified teaching application installed locally, when the teaching control end distributes the specified teaching application, the student terminal acquires the installation package of the specified teaching application from the cloud and installs the installation package to the local. It should be noted that, the server of the cloud for storing the specified teaching application installation package is independent from the target cloud rendering server.
In the embodiment of the application, a user such as a teaching teacher firstly configures teaching resources to be synchronized corresponding to a student terminal to be content synchronized, distributes the configured information of the teaching resources to be synchronized to each client to be content synchronized, and for cloud application, when a teaching control end distributes the information, the application name, the application identifier, the applied symbolic picture and the like of the application can be issued to the student terminal.
Further in the above embodiment, before the step S100, the method further comprises the following steps B10-B20:
b10, the student terminal receives the distribution instruction of the appointed teaching application sent by the teaching control terminal; and the distribution instruction comprises the information of the specified teaching application and an installation package acquisition address.
In this embodiment, the information for specifying the teaching application may include an application name and an application package name of the specified teaching application.
B20, acquiring the installation package of the specified teaching application from the cloud according to the information of the specified teaching application and the installation package acquisition address, and installing the installation package to the local.
Referring to the embodiment shown in fig. 3b, in the embodiment of the present application, when a teaching control end distributes a specified teaching application, if the specified teaching application is a local application, information of an application name, an application poster, and an acquisition address of an application installation package of the specified teaching application is acquired, and the information is distributed to each student terminal to be subjected to content synchronization; after the information of the local application is perfected, the user clicks a 'confirm' button to trigger the teaching control terminal to execute distribution operation. Further, the application is added to the control interface of the teaching resource to be synchronized.
Referring to fig. 3c, in a case that the teaching resource to be synchronized is a cloud application, when the teaching control terminal distributes, information acquired by the teaching control terminal may be a symbolic picture including an application ID, an application name, and an application.
For example, the teaching resource to be synchronized may also be multimedia teaching contents such as videos or pictures, and when the teaching control terminal distributes the information of the teaching resource to be synchronized to each client terminal to be synchronized in content, the information of the multimedia teaching contents may refer to names, storage paths, and the like of the videos or pictures.
In the above embodiment, the student terminal generates the teaching resource list after receiving the information of the teaching resource to be synchronized, which is distributed by the teaching control terminal, and in the centralized control mode, the student terminal can respond to the control operation of the teaching control terminal to execute the start and stop of the application in the teaching resource list and play videos, pictures and the like; in the free mode, the student terminal can freely execute the start and stop of any application in the teaching resource list and the playing of any video, picture and the like according to the control operation of the student without being controlled by a teaching control end.
Furthermore, in this embodiment, after detecting that a user triggers a start operation for an application on a control interface of a to-be-synchronized teaching resource, a teaching control end generates a first synchronous operation instruction of the designated teaching application, sends the first synchronous operation instruction to a student terminal to be subjected to content synchronization, and the student terminal determines whether the designated teaching application is an application installed at a cloud or a local application, and requests the cloud to start the designated teaching application for the application installed at the cloud; if install the application in local, then directly start this appointed teaching application in local, and then this application embodiment, student's terminal can compatible use high in the clouds application and local application, and then increases the kind and the quantity of teaching application, has enlarged the application scene and the application scope of virtual reality teaching.
In addition, according to the virtual reality teaching method provided by the embodiment of the application, the teaching application is installed at the cloud, so that the application supports remote teaching, and the method has important significance for achieving education fairness.
In another embodiment of the present application, the teaching resource to be synchronized includes: in the case of multimedia teaching content such as video, panoramic pictures, etc. The method described in this embodiment further includes the following steps a20-a 60:
and A20, in a first teaching mode, if the starting operation of a user for the designated multimedia teaching content in the control interface is detected, generating a second synchronous operation instruction of the designated multimedia teaching content, and sending the second synchronous operation instruction to the student terminal to be subjected to content synchronization currently.
The second synchronous operation instruction comprises information of the specified multimedia teaching content, such as name, identification and the like.
And A40, the student terminal receives the second synchronous operation instruction, and if the designated multimedia content is stored locally, the designated teaching multimedia content is started to be played locally.
And A60, if the designated multimedia content is not stored locally, acquiring the designated multimedia teaching content according to the playing address of the designated multimedia teaching content for playing.
The playing address of the appointed multimedia teaching content is pre-distributed to the student terminal by the teaching teacher through the teaching control terminal. Optionally, when the teaching control terminal distributes the designated multimedia teaching content, the teaching control terminal distributes the playing address, the poster and the name of the designated multimedia teaching content to the student terminal.
In a specific embodiment of the teaching method, a cloud end is provided with a VR course application storage area which is independent from the cloud rendering server, the teaching method supports unified deployment of cloud end VR course applications, and an administrator can upload VR course applications needing deployment to the cloud end storage and can control deployment of VR course applications to different cloud rendering servers; the teacher can also upload the teaching contents arranged at the teaching control end to the storage; and meanwhile, the functions of batch installation, batch unloading and batch upgrading of cloud VR course application are supported.
Optionally, in an embodiment, the cloud-supported VR course application performs configuration of start parameters through an application description file, where the configurable items include resolution, frame rate, transmission bandwidth, code rate, and the like. When the deployed VR course application starting parameter configuration changes, the cloud synchronizes the application description file information and writes the synchronized data information into the database, so that the game is started according to the new starting parameters when the user restarts the game next time.
Illustratively, in the embodiment of the present application, the teaching control end enters the content management interface according to a third trigger operation of the user, and a teacher and the like perform editing of teaching content on the content management interface, and perform operations such as issuing and deleting of the edited teaching content, and resource release, modification and classification from a student terminal to be subjected to content synchronization.
In the embodiment of the application, after the teaching is finished, the teacher can control the student terminal to delete the distributed teaching resources at the teaching control end.
FIG. 3d is a schematic diagram of an application content management interface provided by an exemplary embodiment of the present application; referring to fig. 3d, a teacher can obtain teaching resources authorized to be used by a platform administrator at a teaching control end, and combines the independently uploaded teaching resources to arrange courses, and after the courses are successfully arranged, the teaching resources to be synchronized are distributed to student terminals according to the above manner. In the distribution process, the teaching teacher can check the distribution state of the teaching resources, and meanwhile, the student terminal storage resources can be selectively controlled to be released according to the student terminal storage state, and the teaching resources can also be edited and the like.
The teaching control terminal is also used for providing the functions of equipment information input, student information management, teacher information management, classroom management and the like.
The teaching control terminal can control the playing start and stop of multimedia teaching contents at the terminal, the start and exit of application contents at the terminal, can control the operations of shutdown, restart, screen stop, awakening and the like of the terminal, and can set each terminal into a centralized control mode or a free mode so as to manage and control the learning mode of students.
When the teaching resources are distributed, a user selects teaching contents to be synchronously operated at a student terminal from teaching resources authorized by a platform administrator at a teaching control end, the teaching resources authorized by the platform administrator can be maintained at the teaching control end or maintained at a cloud end, and users such as teachers and/or background administrators can update the teaching resources in a teaching resource pool; the teaching control terminal acquires the information of the teaching resources to be synchronized selected by the user, and completes the operation of distributing the information to each student terminal.
In the embodiment of the application, the user can inquire the connection state, the storage use condition and the residual condition of each student terminal, the distribution condition of the teaching content and the like at the teaching control terminal.
In an embodiment of the present application, in order to improve effective monitoring of the playing content of the student terminal, the teaching method further includes the following steps C10-C20:
c10, the teaching control end responds to a second trigger operation of the user and presents a content monitoring interface; and the content monitoring interface comprises content monitoring start-stop controls of all the monitored student terminals.
The second trigger operation is different from the first trigger operation, and the second trigger operation may be an operation of clicking a "teaching monitoring" option.
And C20, if the starting operation of the user for the monitoring start-stop control of the student terminal is detected, acquiring a second video stream to be played generated by the target cloud rendering server, and decoding and presenting the second video stream to be played.
In a possible embodiment of the application, after detecting that a user starts the start operation of the monitoring start-stop control for the student terminal, the teaching control terminal sends an acquisition request of a second video stream to the target cloud rendering server, and after receiving the request, the target cloud rendering server generates the second video stream while generating the first video stream in response to the control operation of the student terminal, and sends the second video stream to the teaching control terminal.
In another possible implementation manner of the present application, in the teaching method, the target cloud rendering server generates a second video stream while generating the first video stream in response to the control operation of the student terminal, and sends the second video stream to the teaching control terminal and/or the video forwarding server in real time, and the teaching control terminal starts to receive the second video stream to be played sent by the cloud for decoding presentation or obtains the corresponding second video stream from the video forwarding server for decoding presentation after detecting the monitoring operation of the user on the designated student terminal.
The code stream quality of the second playing video stream is lower than that of the first video stream; illustratively, the second video stream is a code stream with a resolution of 720p and a code rate of 2M, and the first video stream is a code stream with a resolution of 4K and a code rate of 60M.
In another possible embodiment of the application, the second video stream sent to the transfer server can be distributed to other teaching terminals for playing, so that a VR teaching live broadcast scene is realized, and teaching content sharing can be realized.
FIG. 3e is a schematic diagram of a content monitoring interface provided by an exemplary embodiment of the present application; referring to fig. 3e, the content monitoring interface includes a monitoring video playing window of each student terminal, and the monitoring video playing window includes a playing start-stop control and a screen-turning control of the terminal monitoring video.
In the above-mentioned embodiment of this application, the terminal teaching control provides the function of looking over the many pictures of student terminal content behavior and watching for the teacher, has realized giving lessons in the classroom and has interacted with the student, guides the student to study in the VR helmet, continues to use traditional teaching lecture mode, has merged into the VR new form.
In the application, the student terminal (such as a VR terminal) is mainly responsible for teaching content presentation, control instruction reception and the like. Different terminal software access is provided according to different types of terminal equipment, and the VR terminal can receive content control instructions issued by the teaching control terminal and course resources issued by the control terminal so that students can learn at the VR terminal.
FIG. 4 is a flow diagram illustrating another virtual reality instruction method in accordance with an exemplary embodiment of the present invention; referring to fig. 6, the method is applied to the cloud, and the method includes the following steps S400 to S440:
s400, the cloud receives starting requests of specified teaching applications sent by student terminals to be subjected to content synchronization, and a target cloud rendering server is selected for each student terminal to be subjected to content synchronization to start a path of specified teaching application process; and the student terminals to be subjected to content synchronization send starting requests of the specified teaching applications to the cloud terminal under the condition of receiving instructions of synchronously running the specified teaching applications issued by a teaching control terminal.
And S420, after the designated teaching application process is started, the target cloud rendering server responds to the corresponding control operation of the student terminal to render and generate an application picture.
S440, encoding the application picture according to the first encoding parameter to generate a first video stream to be played, and sending the first video stream to be played to the corresponding student terminal for playing.
In an embodiment of the present application, the method further includes the following step S460:
s460, generating a second video stream to be played for the application picture according to a second coding parameter, and sending the second video stream to be played to a video forwarding server and/or the teaching control terminal; and the code stream quality of the second video stream to be played is lower than that of the first video stream to be played.
In this embodiment, the first encoding parameter and the second encoding parameter include: code rate, resolution, and frame rate.
In a possible embodiment of the application, if the cloud rendering server sends the second video stream to the video forwarding server, the student terminal may obtain the second video stream from the video forwarding server for decoding and presenting. In addition, the video forwarding server can also respond to the requests of other teaching terminals and push the second video stream to the other teaching terminals for playing, so that the scene of live teaching is realized, and teaching sharing in other areas is realized.
Fig. 5 is a schematic diagram illustrating a target cloud rendering server generating a second video stream to be played according to an exemplary embodiment of the present invention; referring to fig. 5, in this embodiment, after receiving a start request of a designated teaching application sent by a student terminal, the cloud selects a target cloud rendering server from the cloud to start the designated teaching application, the target cloud rendering server performs rendering in response to a control operation of the student terminal to obtain an application picture, the target cloud rendering server acquires the application picture through an acquisition module 501, encodes the application picture according to a first encoding parameter through a first encoding module 502 to obtain a first video stream, and sends the first video stream to the student terminal 30 through a first sending module 503; the second coding module 502 'codes the application picture acquired by the acquisition module according to the second coding parameter to obtain a second video stream, and the second sending module 503' sends the second video stream to the teaching control terminal 10 and/or the video transit server in real time, wherein the first coding parameter is superior to the first coding parameter. In this embodiment, the target cloud rendering server generates a second video stream while generating the first video stream, and the video stream of the application played by the student terminal is monitored or the teaching content is remotely shared at the teaching control end through the second video stream.
FIG. 6 is a schematic diagram of a virtual reality instruction system according to an exemplary embodiment of the present application; referring to fig. 6, the system 600 includes: teaching control terminal 10 and student terminals 30, the number of which is one or more (4 are shown in the figure by way of example only).
The teaching control terminal 10 is configured to respond to a first trigger operation of a user and display a control interface of a teaching resource to be synchronized; the teaching resources to be synchronized are selected by the user at the teaching control terminal and distributed to the student terminals to be synchronized, and the teaching resources to be synchronized at least comprise: teaching application;
in a first teaching mode, if the starting operation of a user for a specified teaching application in the control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently;
the student terminal 30 is configured to receive the first synchronous operation instruction, and if the designated teaching application is an application installed at a cloud end, send a start request of the designated teaching application to the cloud end, so that the cloud end selects a target cloud rendering server to start a designated teaching application process after receiving the start request, where the target cloud rendering server is configured to respond to a control operation of the student terminal, generate a first video stream to be played, and send the first video stream to be played to the student terminal;
the student terminal 30 is further configured to receive the first video stream to be played for decoding and playing.
Optionally, the teaching control terminal 10 is further configured to:
presenting a content monitoring interface in response to a second trigger operation of the user; the content monitoring interface comprises content monitoring start-stop controls of all monitored student terminals;
if the starting operation of the user for the monitoring start-stop control of the student terminal is detected, acquiring a second video stream to be played generated by the target cloud rendering server, and decoding and presenting the second video stream to be played; and the code stream quality of the second video stream to be played is lower than that of the first video stream to be played.
Optionally, the student terminal 30 is further configured to:
and if the specified teaching application is an application installed in the local, starting the specified teaching application locally.
Optionally, the student terminal 30 is further configured to:
before the student terminal locally starts the designated teaching application, receiving a distribution instruction of the designated teaching application sent by the teaching control terminal; the distribution instruction comprises the information of the specified teaching application and an installation package acquisition address;
and acquiring the installation package of the specified teaching application according to the information of the specified teaching application and the installation package acquisition address, and installing the installation package to the local.
Optionally, the teaching resource to be synchronized further includes: the teaching control terminal 10 is further configured to:
in a first teaching mode, if the starting operation of a user for a specified multimedia teaching content in the control interface is detected, generating a second synchronous operation instruction of the specified multimedia teaching content, and sending the second synchronous operation instruction to the student terminal to be subjected to content synchronization currently;
the student terminal 30 is further configured to receive the second synchronous operation instruction, and if the designated multimedia teaching content is stored locally, start playing the designated multimedia teaching content locally;
and if the specified multimedia teaching content is not stored locally, acquiring the specified multimedia teaching content according to the playing address of the specified multimedia teaching content for playing.
The virtual reality teaching system that this application above-mentioned embodiment provided can realize that the user gives lessons required teaching content's distribution in advance at teaching control terminal side, distribute this teaching content to student's terminal, to this teaching resource of accomplishing of distributing already, the user can trigger this teaching content at control interface and carry out synchronous operation or broadcast at the student terminal that waits to carry out the content synchronization, this teaching content includes high in the clouds application and local application, and then this application has following advantage at least: teaching teachers can arrange and customize teaching contents, the teaching contents do not need to be completely installed on student terminals, performance requirements on the student terminals are reduced, and the application range of the teaching method is widened.
Fig. 7 is a schematic structural diagram of a virtual reality teaching apparatus according to an exemplary embodiment of the present invention; referring to fig. 7, the virtual reality apparatus 700 is applied to a cloud, and the apparatus 700 includes:
the starting module 701 is used for receiving a starting request of a designated teaching application sent by each student terminal to be subjected to content synchronization, and selecting a target cloud rendering server to start a path of designated teaching application process for each student terminal to be subjected to content synchronization; the student terminals to be subjected to content synchronization send a starting request of the specified teaching application to the cloud terminal under the condition of receiving an instruction of synchronously running the specified teaching application, which is issued by a teaching control terminal;
a rendering module 702, configured to respond to a corresponding control instruction of the student terminal to render and generate a corresponding application screen after the designated teaching application process is started;
the first generating module 703 is configured to generate a first video stream to be played for the first application picture according to a first coding parameter, and send the first video stream to be played to the corresponding student terminal for playing.
Optionally, in the foregoing embodiment of the present application, the virtual reality teaching apparatus 700 further includes:
a second generating module 704, configured to encode, by the target cloud rendering server, the application picture according to a second encoding parameter to generate a second video stream to be played, and send the second video stream to be played to a video forwarding server and/or the teaching control terminal; and the code stream quality of the second video stream to be played is lower than that of the first video stream to be played.
In another embodiment of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the cloud game live broadcasting method described in any of the above embodiments.
In the embodiment of the application, a teacher can prepare and distribute teaching contents in advance, can respectively start a teaching application process at a cloud end for each student terminal to be synchronized in contents, does not need to deploy and install the teaching application at the student terminal in advance, reduces the performance requirement on the student terminal, and improves the application range under each teaching scene.
FIG. 8 is a schematic diagram illustrating a configuration of a computer device in accordance with an exemplary embodiment of the present invention; an electronic device provided in an embodiment of the present invention, as shown in fig. 8, includes a processor 501, a communication interface 502, a memory 503, and a communication bus 504, where the processor 501, the communication interface 502, and the memory 503 complete mutual communication through the communication bus 504;
a memory 503 for storing a computer program;
a processor 501, configured to implement the steps of the teaching method provided in any of the above embodiments when executing the program stored in the memory 503; the teacher can prepare and distribute the teaching content in advance according to the requirement of a specific teaching scene, and can respectively start a path of teaching application process at the cloud end for each student terminal to be synchronized in content, so that the teaching application is not required to be deployed and installed at the student terminal in advance, the performance requirement on the student terminal is reduced, and the application range under each teaching scene is improved.
The communication bus mentioned in the above terminal may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the terminal and other equipment.
The Memory may include a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
The implementation process of the functions and actions of each unit in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement it without inventive effort.
Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices (e.g., EPROM, EEPROM, and flash memory devices), magnetic disks (e.g., internal magnetic disks or removable disks), magneto-optical disks, and CD ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any invention or of what may be claimed, but rather as descriptions of features specific to particular embodiments of particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. In other instances, features described in connection with one embodiment may be implemented as discrete components or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system modules and components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.
Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. Further, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some implementations, multitasking and parallel processing may be advantageous.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A virtual reality teaching method, the method comprising:
the teaching control end responds to a first trigger operation of a user and displays a control interface of the teaching resource to be synchronized; the teaching resources to be synchronized are selected by the user at the teaching control terminal and distributed to the student terminals to be synchronized, and the teaching resources to be synchronized at least comprise: teaching application;
in a first teaching mode, if the starting operation of a user for a specified teaching application in the control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently;
the student terminal receives the first synchronous operation instruction, and if the specified teaching application is an application installed at a cloud end, the student terminal sends a starting request of the specified teaching application to the cloud end so that the cloud end selects a target cloud rendering server to start a specified teaching application process after receiving the starting request, the target cloud rendering server is used for responding to control operation of the student terminal, generating a first video stream to be played and sending the first video stream to be played to the student terminal;
and the student terminal receives the first video stream to be played for decoding and playing.
2. The method of claim 1, further comprising:
the teaching control terminal responds to a second trigger operation of the user and presents a content monitoring interface; the content monitoring interface comprises content monitoring start-stop controls of all monitored student terminals;
if the starting operation of the user for the monitoring start-stop control of the student terminal is detected, acquiring a second video stream to be played generated by the target cloud rendering server, and decoding and presenting the second video stream to be played; and the code stream quality of the second video stream to be played is lower than that of the first video stream to be played.
3. The method of claim 1 or 2, further comprising:
and if the designated teaching application is an application installed locally, the student terminal locally starts the designated teaching application.
4. The method of claim 3, wherein before the student terminal locally launches the designated teaching application, the method further comprises:
receiving a distribution instruction of the appointed teaching application sent by the teaching control terminal; the distribution instruction comprises the information of the specified teaching application and an installation package acquisition address;
and acquiring the installation package of the specified teaching application according to the information of the specified teaching application and the installation package acquisition address, and installing the installation package to the local.
5. The method of claim 1, wherein the teaching resource to be synchronized further comprises: teaching multimedia content, the method further comprising:
in a first teaching mode, if the starting operation of a user for a specified multimedia teaching content in the control interface is detected, generating a second synchronous operation instruction of the specified multimedia teaching content, and sending the second synchronous operation instruction to the student terminal to be subjected to content synchronization currently;
the student terminal receives the second synchronous operation instruction, and if the specified multimedia teaching content is stored locally, the specified multimedia teaching content is started to be played locally;
and if the specified multimedia teaching content is not stored locally, acquiring the specified multimedia teaching content according to the playing address of the specified multimedia teaching content for playing.
6. A virtual reality teaching method is applied to a cloud end, and comprises the following steps:
receiving a starting request of a designated teaching application sent by each student terminal to be subjected to content synchronization, and respectively selecting a target cloud rendering server for each student terminal to be subjected to content synchronization to start a path of designated teaching application process; the student terminals to be subjected to content synchronization send a starting request of the specified teaching application to the cloud terminal under the condition of receiving an instruction of synchronously running the specified teaching application, which is issued by a teaching control terminal;
after the appointed teaching application process is started, the target cloud rendering server responds to the corresponding control operation of the student terminal to render and generate an application picture;
and coding the application picture according to a first coding parameter to generate a first video stream to be played, and issuing the first video stream to be played to the corresponding student terminal for playing.
7. The method of claim 6, further comprising:
the target cloud rendering server encodes the application picture according to a second encoding parameter to generate a second video stream to be played, and the second video stream to be played is sent to a video forwarding server and/or the teaching control terminal; and the code stream quality of the second video stream to be played is lower than that of the first video stream to be played.
8. A virtual reality instruction system, the system comprising: a teaching control terminal and a student terminal,
the teaching control terminal is used for responding to a first trigger operation of a user and displaying a control interface of teaching resources to be synchronized; the teaching resources to be synchronized are selected by the user at the teaching control terminal and distributed to the student terminals to be synchronized, and the teaching resources to be synchronized at least comprise: teaching application;
in a first teaching mode, if the starting operation of a user for a specified teaching application in the control interface is detected, generating a first synchronous operation instruction of the specified teaching application, and sending the first synchronous operation instruction to a student terminal to be subjected to content synchronization currently;
the student terminal is used for receiving the first synchronous operation instruction, and if the specified teaching application is an application installed at a cloud end, sending a starting request of the specified teaching application to the cloud end so that the cloud end selects a target cloud rendering server to start a specified teaching application process after receiving the starting request, wherein the target cloud rendering server is used for responding to control operation of the student terminal, generating a first video stream to be played, and sending the first video stream to be played to the student terminal;
and the student terminal is also used for receiving the first video stream to be played and decoding and playing the first video stream to be played.
9. The utility model provides a virtual reality teaching device, its characterized in that, the device is applied to the high in the clouds, the device includes:
the starting module is used for receiving a starting request of the appointed teaching application sent by each student terminal to be subjected to content synchronization, and selecting a target cloud rendering server to start a path of appointed teaching application process for each student terminal to be subjected to content synchronization; the student terminals to be subjected to content synchronization send a starting request of the specified teaching application to the cloud terminal under the condition of receiving an instruction of synchronously running the specified teaching application, which is issued by a teaching control terminal;
the rendering module is used for responding to the corresponding control operation of the student terminal through the target cloud rendering server to render and generate an application picture after the designated teaching application process is started;
the first generation module is used for encoding the application picture according to a first encoding parameter through the target cloud rendering server to generate a first video stream to be played, and sending the first video stream to be played to the corresponding student terminal to be played.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method as claimed in claim 6 or 7.
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