CN113542814A - Demonstration interaction control method, device, system and medium for online classroom - Google Patents
Demonstration interaction control method, device, system and medium for online classroom Download PDFInfo
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- CN113542814A CN113542814A CN202110580763.8A CN202110580763A CN113542814A CN 113542814 A CN113542814 A CN 113542814A CN 202110580763 A CN202110580763 A CN 202110580763A CN 113542814 A CN113542814 A CN 113542814A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
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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
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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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- 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
- G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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Abstract
The invention discloses a demonstration interaction control method, a demonstration interaction control device, a demonstration interaction control system and a demonstration interaction control medium for an online classroom, wherein the method comprises the following steps: receiving a demonstration operation instruction sent by a teacher terminal and sending the demonstration operation instruction to a target student terminal; collecting the operation area pictures of the target student terminal in real time and coding the operation area pictures to generate corresponding audio and video streams; and synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal, and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, and ending the playing. According to the embodiment of the invention, the operation pictures are collected in real time after the demonstration operation instruction is sent to the target student terminal and are synchronously sent to the teacher terminal and the rest of student terminals, so that the communication and interaction among students can be enhanced when the student operation links are involved in live-broadcast network courses, the data interoperability in online courses is effectively improved, and the course interaction efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of internet, in particular to a demonstration interaction control method, device, system and medium for an online classroom.
Background
Online education, or distance education, online learning generally refers to a learning behavior based on a network. On-line education is a teaching mode taking a network as a medium, and students and teachers can develop teaching activities even if the students and teachers are separated by ten thousand through the network, so that the online education is a convenient and efficient mode to become more and more choices of teachers and students at present because the limitation of time and space is broken.
When the present live net class involves the demonstration scene, usually by mr carry out the operation demonstration on own terminal for all students watch study on respective terminal, perhaps the student carries out operations such as classroom operation on own terminal separately, be relatively sealed and independent in the demonstration link between student and the student, because the terminal that mr belongs to and the operation terminal that the student belongs to can't realize the synchronization and the data sharing of data promptly, lead to the not intercommunication of data, and then influence the interactive efficiency of course.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above deficiencies of the prior art, an object of the present invention is to provide a method, an apparatus, a system and a medium for controlling online classroom demonstration interaction, which aim to solve the problem in the prior art that interaction efficiency of courses is affected due to data of online classrooms that are not intercommunicated.
The technical scheme of the invention is as follows:
a demonstration interaction control method for an online classroom comprises the following steps:
receiving a demonstration operation instruction sent by a teacher terminal and sending the demonstration operation instruction to a target student terminal;
collecting the operation area pictures of the target student terminal in real time and coding the operation area pictures to generate corresponding audio and video streams;
and synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal, and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, and ending the playing.
In the method for controlling the demonstration interaction in the online classroom, the receiving of the demonstration operation instruction sent by the teacher terminal and the sending of the demonstration operation instruction to the target student terminal include:
receiving a demonstration operation instruction sent by a teacher terminal;
acquiring a demonstration mode in the demonstration operation instruction;
and sending the demonstration operation instruction to a corresponding target student terminal according to the demonstration mode.
In the method for controlling the demonstration interaction in the online classroom, the demonstration modes comprise a sequential demonstration mode, a designated demonstration mode and a random demonstration mode.
In the method for controlling the demonstration interaction in the online classroom, if the demonstration mode is an in-order demonstration mode, the sending of the demonstration operation instruction to the corresponding objective student terminal according to the demonstration mode comprises the following steps:
acquiring a historical demonstration list, and acquiring a target student terminal of the demonstration according to the historical demonstration list and a preset demonstration sequence;
and sending the demonstration operation instruction to the terminal of the target student of the demonstration.
In the method for controlling the demonstration interaction in the online classroom, if the demonstration mode is an appointed demonstration mode, the method for sending the demonstration operation instruction to the corresponding objective student terminal according to the demonstration mode specifically comprises the following steps:
and detecting an appointed demonstration list sent by the current teacher terminal, and sending the demonstration operation instruction to a target student terminal contained in the appointed demonstration list.
In the method for controlling the demonstration interaction in the online classroom, if the demonstration mode is a random demonstration mode, the method for sending the demonstration operation instruction to the corresponding objective student terminal according to the demonstration mode specifically comprises the following steps:
and randomly appointing the target student terminal, and sending the demonstration operation instruction to the currently appointed target student terminal.
In the method for controlling the demonstration interaction in the online classroom, the synchronizing the audio and video stream to the teacher terminal and the rest of the student terminals except the target student terminal and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, includes:
synchronously pushing the audio and video stream to a teacher terminal and the rest student terminals except the target student terminal through a streaming media server;
and decoding the audio and video stream, and then playing the operation area picture of the target student terminal in real time until a demonstration ending instruction is detected, and ending the playing.
Another embodiment of the present invention further provides an online classroom demonstration interaction control device, which includes:
the instruction sending module is used for receiving a demonstration operation instruction sent by the teacher terminal and sending the demonstration operation instruction to the target student terminal;
the picture acquisition module is used for acquiring the pictures of the operation area of the target student terminal in real time and encoding the pictures to generate corresponding audio and video streams;
and the demonstration interactive module is used for synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, and ending the playing.
The invention also provides a demonstration interactive control system of the online classroom, which comprises at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the above-described presentation interaction control method or decoding method for an online classroom.
Another embodiment of the present invention also provides a non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by one or more processors, may cause the one or more processors to perform the above-mentioned presentation interaction control method or decoding method for an online classroom.
Has the advantages that: compared with the prior art, the embodiment of the invention can enhance the communication and interaction among students when the student operation ring is involved in the live broadcast network course, effectively improve the data interoperability in the online course and further improve the course interaction efficiency by sending a demonstration operation instruction to the target student terminal and then acquiring the operation picture in real time and synchronizing the operation picture to the teacher terminal and other student terminals.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flowchart of a method for controlling the demonstration interaction in an online classroom according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a demonstration flow in an application embodiment of the online classroom demonstration interaction control method provided by the invention;
FIG. 3 is a functional block diagram of a preferred embodiment of an online classroom demonstration interaction control device according to the present invention;
fig. 4 is a schematic hardware structure diagram of a preferred embodiment of the online classroom demonstration interactive control system provided by the invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The demonstration interactive control method for the online classroom provided by the embodiment of the invention is applied to a system consisting of a plurality of terminal devices, a network and a server, wherein the network is a medium for providing a communication link between the terminal devices and the server and can comprise various connection types, such as wired, wireless communication links or optical fiber cables.
The terminal equipment is divided into a teacher terminal and a student terminal according to different users, namely, the teacher user and the student user can respectively use respective terminal equipment, log in the online teaching application on the respective terminal equipment through a pre-registered account and then are connected to a server through a network to realize interaction, so that data receiving or sending and the like are performed. And may be embodied in various electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, portable computers, desktop servers, and the like.
Referring to fig. 1, the method for controlling the online classroom demonstration interaction provided by the present invention includes the following steps:
s100, receiving a demonstration operation instruction sent by a teacher terminal and sending the demonstration operation instruction to a target student terminal;
s200, collecting the operation area picture of the target student terminal in real time and coding to generate corresponding audio and video stream;
s300, the audio and video stream is synchronized to the teacher terminal and the rest student terminals except the target student terminal, then decoding and playing are carried out, and playing is finished until a demonstration finishing instruction is detected.
In this embodiment, when a teacher and students respectively perform on-line teaching live broadcast through on-line teaching applications pre-installed on their respective terminals, and when a scene requiring student operation, such as classroom work, is involved, a teacher terminal that a teacher user logs in to use after issuing a job task to a student terminal that all student users log in to use respectively can further send a demonstration operation instruction to a target student terminal through the teacher terminal, where the demonstration operation instruction is used by the teacher user to demonstrate and share a current operation picture of the target student user, and synchronize the operation picture of the target student user to be watched by other student users, and a picture collection function is turned on at the terminal where the target student user currently logs in, that is, when the target student terminal receives the demonstration operation instruction, specifically, the picture collection function turns on a screen recording function on the target student terminal by calling a preset interface, the method includes the steps of collecting operation area pictures of a target student terminal in real time, specifically, the operation area pictures are areas where student users edit jobs, taking a building block programming course as an example, the operation area pictures are building block editing areas on the target student terminal, coding the operation area pictures collected in real time to generate corresponding audio and video streams, synchronizing the audio and video streams to a teacher terminal and the rest of the student terminals, decoding and playing the audio and video streams after the teacher terminal and the rest of the student terminals receive the audio and video streams, displaying the operation process of a currently demonstrated student on the terminal of the currently demonstrated student on the teacher terminal in real time and completely to the teacher user and other students for watching, and specifically, the coding and decoding process of the audio and video streams can adopt the existing audio and video coding and decoding method, which is the prior art, and this embodiment does not give further details. And when the server detects a demonstration ending instruction, the server stops playing of the audio and video stream on the teacher terminal and the rest of the student terminals, specifically, the demonstration ending instruction can be actively input by a teacher user on the teacher terminal to actively end the demonstration sharing operation of the current target student user, or can be automatically generated by a system when different target student users are switched for demonstration, so that automatic switching of different student users during demonstration sharing operation is realized. This embodiment can not only carry out one-to-many interdynamic through teacher and whole student when making online classroom interdynamic, also can realize the interdynamic between student and the student through demonstration interactive control, promotes the study exchange between the different students, widens student's thinking, is favorable to improving classroom interactivity and the exchange enthusiasm between the student, and then effectively improves the interactive efficiency of data and then improvement course in the online teaching.
Further, the receiving a demonstration operation instruction sent by a teacher terminal and sending the demonstration operation instruction to a target student terminal includes:
receiving a demonstration operation instruction sent by a teacher terminal;
acquiring a demonstration mode in the demonstration operation instruction;
and sending the demonstration operation instruction to a corresponding target student terminal according to the demonstration mode.
In this embodiment, a teacher and students can respectively use their respective terminals to interact with a server through a network to receive or send messages and the like, the teacher user can set different demonstration modes on the teacher terminal and send a demonstration operation instruction output in the current demonstration mode to the server, and the server sends the demonstration operation instruction to a corresponding target student terminal according to the identified demonstration mode, wherein the demonstration modes include a sequential demonstration mode, a designated demonstration mode and a random demonstration mode, that is, the demonstration target in this embodiment is related to the demonstration mode set by the teacher user, and different target student terminals are provided in different demonstration modes, so that flexible and diversified demonstration interaction control is realized, demonstration interaction requirements of the teacher user under different situations are met, and interaction interestingness in an online classroom is enriched.
Further, if the demonstration mode is an in-order demonstration mode, the sending the demonstration operation instruction to the corresponding objective student terminal according to the demonstration mode includes:
acquiring a historical demonstration list, and acquiring a target student terminal of the demonstration according to the historical demonstration list and a preset demonstration sequence;
and sending the demonstration operation instruction to the terminal of the target student of the demonstration.
In this embodiment, when the in-order demonstration mode is adopted, all student users in the current classroom are sequentially patrolled in order by default, and therefore when the target student terminal of the current demonstration is obtained, the target student terminal needs to be confirmed by combining a historical demonstration list and a preset demonstration sequence, wherein the historical demonstration list comprises demonstration time and demonstration students for which operation demonstration is performed, the student list needing demonstration can be confirmed according to the preset sequence according to the nearest demonstration student in the historical demonstration list, the number of people performing demonstration each time can be flexibly determined according to the demonstration operation instruction, and this embodiment is not limited thereto.
The in-sequence demonstration mode enables a teacher user to automatically acquire a target student terminal of the demonstration after starting a demonstration operation function, the teacher user does not need to search and select students for demonstration, the efficiency of demonstration operation is improved, and the coverage rate of demonstration interaction is ensured.
Specifically, the historical demonstration list is cleared after all students perform demonstration, and the list of the students which have been demonstrated each time is restarted to be recorded, so that each student can demonstrate the operation process of the student to teachers and students to watch the student to promote study and communication, the situations of repetition or omission and the like are avoided, and the balance of demonstration interaction is improved.
Further, if the demonstration mode is the designated demonstration mode, the step of sending the demonstration operation instruction to the corresponding target student terminal according to the demonstration mode specifically comprises the following steps:
and detecting an appointed demonstration list sent by the current teacher terminal, and sending the demonstration operation instruction to a target student terminal contained in the appointed demonstration list.
In this embodiment, when the designated demonstration mode is adopted, the tour operation is performed on the target student user designated by the teacher user, and at this time, the teacher terminal synchronously sends a designated demonstration list, where the designated demonstration list includes student users that the teacher user wishes to perform the demonstration operation, and the designated demonstration list may include one or more student users, and the teacher user may arbitrarily designate the demonstration list. Preferably, after statistical analysis is carried out according to historical scores of all students, a corresponding recommended and assigned demonstration list is automatically pushed to teacher users, for example, the current course is a math course, a list of three students with math course scores ranked in the top can be obtained according to the statistical analysis of the historical scores, students with excellent current course scores are assigned to carry out demonstration operation through accurate and scientific data analysis, mutual communication and study and mutual assistance enthusiasm among students are promoted, and the precision and the interaction effect of demonstration interaction are further improved.
Further, if the demonstration mode is a random demonstration mode, the step of sending the demonstration operation instruction to the corresponding target student terminal according to the demonstration mode specifically includes:
and randomly appointing the target student terminal, and sending the demonstration operation instruction to the currently appointed target student terminal.
In this embodiment, when the random demonstration mode is adopted, all student users in the current classroom are randomly assigned, that is, one or more target student terminals are randomly selected to receive the demonstration operation instruction for demonstration interaction, so that the randomness of the demonstration operation is improved, and the phenomenon that the demonstration operation is biased due to the subjectivity of the teacher user is avoided.
Further, the synchronizing the audio and video stream to the teacher terminal and the rest of the student terminals except the target student terminal and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, includes:
synchronously pushing the audio and video stream to a teacher terminal and the rest student terminals except the target student terminal through a streaming media server;
and decoding the audio and video stream, and then playing the operation area picture of the target student terminal in real time until a demonstration ending instruction is detected, and ending the playing.
In this embodiment, after the operation area pictures of the target student terminals are collected in real time and converted into audio and video streams, the audio and video streams are pushed to the RTC streaming media server, the teacher terminal and the remaining student terminals pull the audio and video streams of the target student terminals from the RTC streaming media server to achieve synchronous pushing of the operation video streams, the RTC streaming media server pushes the audio and video streams to achieve high-efficiency smooth video picture synchronization, and after the teacher terminal and the remaining student terminals are pulled locally, the audio and video streams are decoded to play the operation area pictures of the corresponding target student terminals in real time, so that a screen is shared to play, and teachers and other students can watch and learn the operation process of the demonstration students, thereby improving classroom interactivity and teaching quality.
Specifically, as shown in fig. 2, in an optional application embodiment, the process of performing the demonstration interaction on the student operation interface during live online lesson includes that the teacher end sends a demonstration operation instruction to the student end (in this embodiment, the student end a) needing to perform the round-robin demonstration, the student end a starts to capture an operation area picture after receiving the demonstration operation instruction, then the student end a pushes the captured operation area picture to the RTC push-pull streaming server in an audio-video streaming manner, and the teacher end and other students (including the student end B, the student end C and the student end D) pull the audio-video stream of the student end a from the RTC push-pull streaming server to the local for playing, so as to implement a real-time demonstration interaction control process, in an online programming teaching scene, for example, the students often perform programming operation in online lessons, and therefore perform an interaction link of operation demonstration by the students, the interaction between students is effectively promoted, the study enthusiasm and the data interoperability in the online course are favorably improved, and the interaction efficiency of the course is further improved.
According to the method, the demonstration interaction control method for the online class, provided by the invention, can be used for acquiring the operation picture in real time and synchronously providing the operation picture to the teacher terminal and other student terminals after the demonstration operation instruction is sent to the target student terminal, so that the communication and interaction among students can be enhanced when the student operation ring is involved in the live broadcast network class, the data interoperability in the online class is effectively improved, and the interaction efficiency of the class is further improved.
It should be noted that, a certain order does not necessarily exist between the above steps, and those skilled in the art can understand, according to the description of the embodiments of the present invention, that in different embodiments, the above steps may have different execution orders, that is, may be executed in parallel, may also be executed interchangeably, and the like.
In correspondence to the above-mentioned demonstration interaction control method for an online classroom, another embodiment of the present invention provides a demonstration interaction control device for an online classroom, as shown in fig. 4, the device 1 includes:
the instruction sending module 11 is used for receiving a demonstration operation instruction sent by the teacher terminal and sending the demonstration operation instruction to the target student terminal;
the picture acquisition module 12 is used for acquiring the pictures of the operation area of the target student terminal in real time and encoding the pictures to generate corresponding audio and video streams;
and the demonstration interactive module 13 is used for synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal, and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, so that the playing is ended.
The instruction sending module 11, the image acquisition module 12 and the demonstration interaction module 13 are connected in sequence, the module referred to in the present invention refers to a series of computer program instruction segments capable of completing specific functions, and is more suitable for describing the execution process of the demonstration interaction control device of the online classroom than a program.
Further, the instruction sending module 11 includes:
the receiving unit is used for receiving a demonstration operation instruction sent by the teacher terminal;
the acquisition unit is used for acquiring a demonstration mode in the demonstration operation instruction;
and the sending unit is used for sending the demonstration operation instruction to the corresponding target student terminal according to the demonstration mode.
Further, the transmission unit includes:
the acquisition subunit is used for acquiring a historical demonstration list and acquiring a target student terminal of the demonstration according to the historical demonstration list and a preset demonstration sequence;
and the sending subunit is used for sending the demonstration operation instruction to the terminal of the target student of the demonstration.
Further, the sending unit is further specifically configured to:
and detecting an appointed demonstration list sent by the current teacher terminal, and sending the demonstration operation instruction to a target student terminal contained in the appointed demonstration list.
Further, the sending unit is further specifically configured to:
and randomly appointing the target student terminal, and sending the demonstration operation instruction to the currently appointed target student terminal.
Further, the demonstration interaction module 13 includes:
the pushing unit is used for synchronously pushing the audio and video stream to a teacher terminal and the rest student terminals except the target student terminal through the RTC streaming media server;
and the playing unit is used for decoding the audio and video stream and then playing the operation area picture of the target student terminal in real time until a demonstration ending instruction is detected, and ending the playing.
Another embodiment of the present invention provides an online classroom demonstration interactive control system, which may be a mobile terminal, a desktop computer, a notebook, a palmtop computer, a server, and other computing devices, as shown in fig. 4, the system 10 includes:
one or more processors 110 and a memory 120, where one processor 110 is illustrated in fig. 4, the processor 110 and the memory 120 may be connected by a bus or other means, and fig. 4 illustrates a connection by a bus as an example.
The memory 120 is a non-volatile computer-readable storage medium, and can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions corresponding to the method for controlling the demonstration interaction in an online classroom according to the embodiment of the present invention. The processor 110 executes various functional applications and data processing of the system 10 by executing nonvolatile software programs, instructions and units stored in the memory 120, namely, implements the presentation interaction control method for the online classroom in the above-described method embodiment.
The memory 120 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the system 10, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 120 optionally includes memory located remotely from processor 110, which may be connected to system 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more units are stored in the memory 120, and when executed by the one or more processors 110, perform the presentation interaction control method for online class in any of the above-described method embodiments, for example, perform the above-described method steps S100 to S300 in fig. 1.
Embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer-executable instructions for execution by one or more processors, for example, to perform method steps S100-S300 of fig. 1 described above.
By way of example, non-volatile storage media can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), electrically erasable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in many forms such as Synchronous RAM (SRAM), dynamic RAM, (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), SyncLink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The disclosed memory components or memory of the operating environment described herein are intended to comprise one or more of these and/or any other suitable types of memory.
In summary, in the method, the device, the system and the medium for controlling the demonstration interaction in the online classroom, disclosed by the invention, the method comprises the steps of receiving a demonstration operation instruction sent by a teacher terminal and sending the demonstration operation instruction to a target student terminal; collecting the operation area pictures of the target student terminal in real time and coding the operation area pictures to generate corresponding audio and video streams; and synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal, and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, and ending the playing. According to the embodiment of the invention, the operation pictures are collected in real time after the demonstration operation instruction is sent to the target student terminal and are synchronously sent to the teacher terminal and the rest of student terminals, so that the communication and interaction among students can be enhanced when the student operation links are involved in live-broadcast network courses, the data interoperability in online courses is effectively improved, and the course interaction efficiency is further improved.
The above-described embodiments 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 embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a general hardware platform, and may also be implemented by hardware. With this in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer electronic device (which may be a personal computer, a server, or a network electronic device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Conditional language such as "can," "might," or "may" is generally intended to convey that a particular embodiment can include (yet other embodiments do not include) particular features, elements, and/or operations, unless specifically stated otherwise or otherwise understood within the context as used. Thus, such conditional language is also generally intended to imply that features, elements, and/or operations are in any way required for one or more embodiments or that one or more embodiments must include logic for deciding, with or without input or prompting, whether such features, elements, and/or operations are included or are to be performed in any particular embodiment.
What has been described herein in the specification and drawings includes examples of presentation interaction control methods, apparatuses, systems, and media capable of providing an online classroom. It will, of course, not be possible to describe every conceivable combination of components and/or methodologies for purposes of describing the various features of the disclosure, but it can be appreciated that many further combinations and permutations of the disclosed features are possible. It is therefore evident that various modifications can be made to the disclosure without departing from the scope or spirit thereof. In addition, or in the alternative, other embodiments of the disclosure may be apparent from consideration of the specification and drawings and from practice of the disclosure as presented herein. It is intended that the examples set forth in this specification and the drawings be considered in all respects as illustrative and not restrictive. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A demonstration interactive control method for an online classroom is characterized by comprising the following steps:
receiving a demonstration operation instruction sent by a teacher terminal and sending the demonstration operation instruction to a target student terminal;
collecting the operation area pictures of the target student terminal in real time and coding the operation area pictures to generate corresponding audio and video streams;
and synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal, and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, and ending the playing.
2. The on-line classroom demonstration interaction control method according to claim 1, wherein the receiving of the demonstration operation instruction from the teacher terminal and the sending of the demonstration operation instruction to the objective student terminal comprises:
receiving a demonstration operation instruction sent by a teacher terminal;
acquiring a demonstration mode in the demonstration operation instruction;
and sending the demonstration operation instruction to a corresponding target student terminal according to the demonstration mode.
3. The method of claim 2, wherein the presentation modes include a sequential presentation mode, a designated presentation mode, and a random presentation mode.
4. The method for controlling the demonstration interaction in the online classroom according to claim 3, wherein if the demonstration mode is an in-order demonstration mode, the sending the demonstration operation command to the corresponding objective student terminal according to the demonstration mode comprises:
acquiring a historical demonstration list, and acquiring a target student terminal of the demonstration according to the historical demonstration list and a preset demonstration sequence;
and sending the demonstration operation instruction to the terminal of the target student of the demonstration.
5. The method for controlling the demonstration interaction in the online classroom according to claim 3, wherein if the demonstration mode is the designated demonstration mode, the step of sending the demonstration operation instruction to the corresponding objective student terminal according to the demonstration mode specifically comprises:
and detecting an appointed demonstration list sent by the current teacher terminal, and sending the demonstration operation instruction to a target student terminal contained in the appointed demonstration list.
6. The method for controlling the demonstration interaction in the online classroom according to claim 3, wherein if the demonstration mode is a random demonstration mode, the step of sending the demonstration operation instruction to the corresponding objective student terminal according to the demonstration mode specifically comprises:
and randomly appointing the target student terminal, and sending the demonstration operation instruction to the currently appointed target student terminal.
7. The on-line classroom demonstration interaction control method according to claim 1, wherein the synchronizing of the audio and video stream to the teacher terminal and the remaining student terminals except the target student terminal is followed by decoding and playing until a demonstration end instruction is detected, and comprises:
synchronously pushing the audio and video stream to a teacher terminal and the rest student terminals except the target student terminal through a streaming media server;
and decoding the audio and video stream, and then playing the operation area picture of the target student terminal in real time until a demonstration ending instruction is detected, and ending the playing.
8. The utility model provides a demonstration interactive control device in online classroom which characterized in that includes:
the instruction sending module is used for receiving a demonstration operation instruction sent by the teacher terminal and sending the demonstration operation instruction to the target student terminal;
the picture acquisition module is used for acquiring the pictures of the operation area of the target student terminal in real time and encoding the pictures to generate corresponding audio and video streams;
and the demonstration interactive module is used for synchronizing the audio and video stream to the teacher terminal and the rest student terminals except the target student terminal and then decoding and playing the audio and video stream until a demonstration ending instruction is detected, and ending the playing.
9. An online classroom demonstration interactive control system, characterized in that the system comprises at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of presentation interaction control for an online classroom as claimed in any one of claims 1-7.
10. A non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the method of presentation interaction control for an online classroom of any one of claims 1-7.
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