TW202044074A - Remote real-time multimedia teaching method and system, electronic equipment and storage medium - Google Patents

Abstract

The invention provides a remote real-time multimedia teaching method and device, electronic equipment and a storage medium, and the method comprises the steps: responding to the receiving of a course request of at least one first type of account number and one second type of account number, and building a virtual interaction space associated with the first type of account number and the second type of account number; providing a cloud desktop for the first type of accounts and the second type of accounts in the virtual interaction space; operating the cloud desktop in response to an operation instruction of a second type of account numbers; responding to a first permission instruction of the second type of account to the first type of account, and changing the first type of account corresponding to the permission instruction from the first type of permission to the second type of permission; operating the cloud desktop in response to an operation instruction of the first type of account with the second type of authority; and responding to a second permission instruction of the second type of account to the first type of account, and changing the first type of account corresponding to the permission instruction from the second type of permission to the first type of permission.

Description

Remote real-time multimedia teaching method, device and system, electronic equipment and computer readable recording medium

The present invention relates to the field of computer applications, in particular to a remote real-time multimedia teaching method, device and system, electronic equipment, and a computer-readable recording medium.

With the rapid development of information technology, especially from the Internet to the mobile Internet, a way of living, working and learning across time and space has been created, which has fundamentally changed the way of acquiring knowledge. Teaching and learning can be independent of time, space and location conditions. Restrictions, flexible and diversified knowledge acquisition channels have made online education born. Online education, as the name suggests, is a teaching method based on the Internet. Through the Internet, students and teachers can carry out teaching activities even if they are thousands of miles apart. In addition, with the help of online courseware, students can learn anytime and anywhere, which really breaks time and space. Due to space constraints, Internet remote education is the most convenient way to learn for those who are busy at work and have irregular study hours. Online education is mainly through the application of information technology and Internet technology for content dissemination and rapid learning methods to realize electronic learning, efficient learning, exploratory learning, experience learning, extended learning, extended learning, and easy-to-use Learning, enhanced learning.

However, in the course, on the one hand, there is no effective permission management and control method to optimize the interactive process in real-time teaching. On the other hand, in order to achieve real-time interactive operation between teachers and students, instead of the teacher only watching the course content explanation but not seeing the students' operation process, virtualization solutions are often used. However, the current virtualization technology has a series of problems, such as the need to install additional plug-ins to achieve effects before starting to learn. These plug-ins often require professionals to guide the installation, and in the face of complex network settings and firewalls, they cannot directly penetrate the network to achieve connection. At the same time, additional plug-ins will result in lower performance and lower remote desktop connection quality. In addition, in the case of large-scale user use, it is not convenient to manage and close the remote desktop.

Therefore, in order to overcome the deficiencies of the above-mentioned related technologies, the present invention provides a remote real-time multimedia teaching method, device, electronic equipment, and computer-readable recording medium, thereby overcoming the limitations and deficiencies of related technologies at least to a certain extent. One or more problems caused.

Therefore, a remote real-time multimedia teaching method of the present invention includes: a control system responds to a course request of a first terminal device corresponding to at least one first type account and a second terminal device corresponding to a second type account To establish a virtual interactive space associated with the at least one first-type account and a second-type account; the control system provides a cloud desktop to the at least one first-type account and the second-type account in the virtual interactive space , Wherein the first type of account has a first type of permission, the first type of permission is not allowed to operate the cloud desktop, the second type of account has a second type of permission, the second type of permission The right to operate the cloud desktop; the control system responds to the operation instructions of the second type of account to operate the cloud desktop; the control system responds to the first permission instruction of the second type of account for the first type of account , The first type of account corresponding to the first permission instruction is changed from the first type of permission to the second type of permission; the control system responds to the operation instruction of the first type of account with the second type of permission, and operates the Said cloud desktop; and the control system responds to the second permission instruction of the second type of account for the first type of account, so that the first type of account corresponding to the second permission instruction is changed from the second type of permission to the first One type of permission.

In some embodiments of the present invention, after establishing a virtual interactive space associated with the at least one first-type account and the second-type account, the method further includes: the control system sends the control system to the at least one first in the virtual interactive space. The type account provides second multimedia data of the second type account, and the second multimedia data is displayed in the cloud desktop or displayed independently of the cloud desktop.

In some embodiments of the present invention, after establishing a virtual interactive space associated with the at least one first-type account and the second-type account, the method further includes: the control system responds to the second-type account for the first The first control instruction of the first type account receives the first multimedia data of the first type account corresponding to the first control instruction; the control system provides the second type account in the virtual interactive space with the information of the first type account First multimedia data, and the first multimedia data is displayed in the cloud desktop or displayed independently of the cloud desktop; and the control system responds to the second-type account's response to the first-type account The second control instruction stops receiving the first multimedia data of the first type account corresponding to the first control instruction.

In some embodiments of the present invention, the first control instruction and the second control instruction control the multimedia collection device of the first terminal device corresponding to the first type of account.

In some embodiments of the present invention, the first permission instruction triggers the first control instruction; the second permission instruction triggers the second control instruction.

In some embodiments of the present invention, the control system responds to the action instruction of the first type of account to trigger the second type of account to generate a first permission instruction for the first type of account.

In some embodiments of the present invention, the action instruction is generated when the first terminal device corresponding to the first type account recognizes a preset first action based on a video capture device corresponding to the first type account. .

In some embodiments of the present invention, the action instruction is generated when the first terminal device corresponding to the first type account recognizes a preset first action based on a wearable device corresponding to the first type account.

In some embodiments of the present invention, the control system responds to a request instruction of the first type account and/or the second type account in the virtual interactive space to associate the virtual interactive space with a management account. Corresponds to a management terminal device and has a third type of permission, which allows the management account to change the association between the virtual interactive space and the first type of account and/or the second type of account, and allows the management The account modifies the permission of the first type account and/or the second type account, and allows the management account to operate the cloud desktop.

Furthermore, a remote real-time multimedia teaching device implementing the above method of the present invention includes: a creation module, in response to the receipt of the course request of at least one first-type account and a second-type account, establishes an association with the at least one A virtual interactive space for a first-type account and a second-type account; a providing module that provides cloud desktops to at least one first-type account and a second-type account in the virtual interactive space, wherein the first type The account has the first type of permission, the first type of permission does not allow the first type of account to operate the cloud desktop, the second type of account has the second type of permission, the second type of permission allows The second type account operates the cloud desktop; a first operation module responds to the operation instructions of the second type account to operate the cloud desktop; a first modification module responds to the second The first permission instruction of the first permission instruction for the first permission instruction causes the first permission instruction corresponding to the first permission instruction to change from the first permission to the second permission; a second operation module responds to An operation instruction of a first type account with a second type of permission to operate the cloud desktop; and a second modification module, which responds to the second permission instruction of the second type of account for the first type of account, so that The first type of account corresponding to the second permission instruction is changed from the second type of permission to the first type of permission.

In addition, the present invention implements a remote real-time multimedia teaching system of the above method, which includes multiple terminal devices and a control system. When the terminal device is logged in with the first type of account, it is used as the first terminal device, and when the terminal device is logged in with the second type of account, it is used as the second terminal device. The control system is used to establish a virtual interactive space associated with the at least one first terminal device and a second terminal device according to a course request, and control the interaction between the first terminal device and the second terminal device in the virtual interactive space, and includes : A communication module for communicating with each terminal device; a cloud desktop module for providing a cloud desktop to at least one first terminal device and the second terminal device in the virtual interactive space, and responding to each Operating instructions of the type account to operate the cloud desktop; a permission management module for managing the permissions of various accounts, wherein the permission management module responds to the second type of account to the first type The first permission instruction of the account changes the first type of account corresponding to the first permission instruction from the first type of permission to the second type of permission, and the permission management module responds to the second type of account The second permission instruction for the first type of account changes the first type of account corresponding to the second permission instruction from the second type of permission to the first type of permission, and the first type of permission does not allow operation The cloud desktop, the second type of permission to operate the cloud desktop.

In some embodiments of the present invention, the terminal device communicates with the cloud desktop module via websocket; the terminal device communicates with the communication module via webRTC.

In some embodiments of the present invention, the cloud desktop module is implemented based on a browser.

In addition, an electronic device implementing the above method according to the present invention includes a processor and a memory. A computer program is stored in the memory, and when the computer program is run by the processor, the remote real-time multimedia teaching method as described above is executed.

In addition, the present invention implements a computer-readable recording medium for implementing the above-mentioned method. The computer-readable recording medium stores a computer program, and the computer program can execute the above-mentioned when it is run by a processor of a terminal device Remote real-time multimedia teaching method.

The effect of the present invention is: On the one hand, the present invention can provide a cloud desktop to an account located in the virtual interactive space through the establishment of a virtual interactive space, and the cloud desktop can be operated according to different account permissions to realize interaction in the virtual interactive space. On the other hand, the present invention allows the second type of account to change the permission of the first type of account through the permission association between accounts, so as to orderly manage the interaction in the course; on the other hand, the present invention does not need The plug-in program can provide cloud desktop and multimedia interaction, and solve the problem of installing additional plug-in programs and complex networks during the virtualization process.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms, and should not be construed as being limited to the examples set forth herein; on the contrary, the provision of these embodiments makes the present invention more comprehensive and complete, and fully conveys the concept of the example embodiments To those skilled in the art. The described features, structures or characteristics may be combined in one or more embodiments in any suitable way.

In addition, the drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures denote the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in the form of software, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and/or processor devices and/or microcontroller devices These functional entities.

The flowchart shown in the drawings is only an exemplary description and does not necessarily include all steps. For example, some steps can be decomposed, and some steps can be combined or partially combined. Therefore, the actual execution order may be changed according to actual conditions.

Fig. 1 shows a flowchart of an embodiment of the remote instant multimedia teaching method of the present invention. The remote real-time multimedia teaching method of this embodiment includes the following steps: Step S110: A control system responds to the receipt of a course request of at least one first-type account and a second-type account, and establishes an association with the at least one first-type account and A virtual interactive space for the second type of account.

Specifically, the first type of account is a student account and it corresponds to a first terminal device (student terminal computer device). The second type of account is a teacher account and corresponds to a second terminal device (teacher computer device). For ease of description, the first type of account described below represents the first terminal device, and the second type of account described below represents the second terminal device. The virtual interactive space is, for example, an online classroom. In this online classroom, at least the students who log in through the student account will be shown the live/recorded teaching video courses of the classroom logged in through the teacher account and the courseware of the course (the text and graphics of the teaching content are presented in multimedia form using a computer) tool). In this online classroom, students’ feedback can also be provided to teachers, thereby realizing instant interaction and online questioning. The virtual interactive space provided in this embodiment is not limited to this.

Specifically, step S110 establishing a virtual interactive space according to at least one first-type account and a second-type account may further include the following steps: generating a unique identification code of the virtual interactive space, and maintaining the at least one first-type account And a mapping table of the unique identification code of the second type account and the virtual interactive space. Thus, this embodiment can maintain the mapping and connection status of student accounts and teacher accounts in multiple virtual interactive spaces (multiple online classrooms).

Step S120: The control system provides cloud desktops to at least one first-type account and one second-type account in the virtual interactive space, wherein the first-type account has the first-type permission, and the first-type permission The right is not allowed to operate the cloud desktop, the second type of account has a second type of permission, and the second type of permission allows the operation of the cloud desktop.

Specifically, the cloud desktop is based on a unique communication protocol to redirect the desktop or application to the operator through the cloud terminal. As the carrier to realize the cloud desktop, the cloud terminal function is to present the cloud desktop on the front end, and its main function is to display the cloud desktop and redirect the input and output data of the terminal to the cloud server.

In some embodiments, the cloud desktops displayed to the first type of account and the second type of account are exactly the same. In other embodiments, the cloud desktops displayed for the first type of account and the second type of account are different, and are personalized (customized) according to different types of accounts. In this embodiment, the personalized display can be displayed on The terminal to which the account logs in adjusts the cloud desktop provided by the cloud, or it can be adjusted when the cloud desktop is generated in the cloud, but this embodiment is not limited by this.

Further, step S120 indicates that, in the initial state, the second type of account has the permission to operate the cloud desktop, while the first type of account does not have the permission to operate the cloud desktop.

Step S130: The control system responds to the operation instruction of the second type of account to operate the cloud desktop.

Specifically, the operation instruction may include any operation on the cloud desktop, for example, input data, modify data, adjust the size of the display interface, open applications, switch applications, etc. This embodiment is not limited to this. After the cloud desktop is operated in response to the operation instruction of the second type of account, its update is also displayed to the first type of account and the second type of account accordingly.

Step S140: The control system responds to the first permission instruction of the second type account for the first type account, and changes the first type account corresponding to the first permission instruction from the first type permission to the second type. Permission.

Specifically, when the second type of account needs to interact with the first type of account, the first permission instruction can be actively generated, so that the first type of account has the second type of permission to operate the cloud desktop.

In some specific embodiments, when the control system recognizes that the first type of account has interaction requirements for the cloud desktop, it can also generate prompt information to the second type of account, so that the second type of account triggers the first type of account according to the prompt information. Generation of permission instructions. The control system can identify whether the first type of account has an interaction requirement based on the video recognition of the first type of account, the action recognition of the wearable device, or whether the first type of account clicks an interactive option.

In some specific embodiments, the first permission instruction enables the first type of account to have part of the second type of permission to operate the cloud desktop. In other words, the first permission instruction enables the account of the first type to only operate part of the display area of the cloud desktop/part of the applications of the cloud desktop, etc. This embodiment is not limited by this.

Step S150: The control system responds to the operation instruction of the first-type account with the second-type permission to operate the cloud desktop.

When the permission of the first type of account is changed to have the second type of permission, the first type of account can operate the cloud desktop. The operation instructions may include any operations on the cloud desktop, for example, input data, modify data, adjust the size of the display interface, open applications, switch applications, etc. The present invention is not limited thereto. After the cloud desktop is operated in response to the operation instruction of the first type of account, its update is also displayed to the first type of account and the second type of account accordingly.

Step S160: The control system responds to the second permission instruction of the second type account for the first type account, and changes the first type account corresponding to the second permission instruction from the second type permission to the first type. Permission.

Specifically, after the interaction between the second-type account and the first-type account on the cloud desktop is completed, the second permission instruction can be actively generated, so that the first-type account has the first-type permission that cannot operate the cloud desktop. As a result, it is possible to prevent the first type of account from affecting the lecture of the second type of account during the course.

In the remote real-time multimedia teaching method provided by this embodiment, on the one hand, the present invention can provide a cloud desktop to an account located in the virtual interactive space by establishing a virtual interactive space, and the cloud desktop can be operated according to different account permissions. In order to realize the interaction in the virtual interactive space; on the other hand, the present invention allows the second type of account to change the permission of the first type of account through the permission association between the accounts, so as to manage the interaction in the course in an orderly manner ; On the other hand, the present invention can provide cloud desktop and multimedia interaction without plug-ins, and solves the problem of installing additional plug-ins and complicated networks during the virtualization process.

In a specific embodiment of the present invention, after the step S110 establishes a virtual interactive space that is associated with the at least one first-type account and a second-type account, it may further include: At least one account of the first type provides second multimedia data of the account of the second type, and the second multimedia data is displayed in the cloud desktop or independently of the cloud desktop.

Specifically, the second multimedia data may include audio data and video data. The second multimedia data can be displayed to the first type account and the second type account independently of the cloud desktop. In other embodiments, the second multimedia data is embedded in the cloud desktop and displayed to the first type of account and the second type of account. The present invention is not limited by this.

As shown in Figure 2, Figure 2 shows a schematic diagram of a cloud desktop according to a specific embodiment of the present invention. Specifically, the display interface 200 includes a cloud desktop 201, a teacher video area 202, student video areas 203 and 204, and a discussion area 205. The display interface 200 only schematically shows the display interface in the virtual interactive space, and the arrangement, size, and setting of each area are not limited by this. For example, in the student account interface, the student video areas 203 and 204 can be omitted Or only the video area of the student account is displayed; on the display interface of the teacher account, the teacher video area 202 can be omitted, and the present invention can also implement more changes, which will not be repeated here.

In other embodiments, the teacher video area 202, the student video areas 203 and 204, and the discussion area 205 may be embedded in the cloud desktop 201.

In a specific embodiment of the present invention, as shown in FIG. 3, after the step S110 establishes a virtual interactive space associated with the at least one first-type account and a second-type account, it may further include:

Step S171: The control system responds to the first control instruction of the second type account to the first type account, and receives the first multimedia data of the first type account corresponding to the first control instruction.

Step S172: The control system provides the first multimedia data of the first type of account to the second type of account in the virtual interactive space, and the first multimedia data is displayed in the cloud desktop or independent of all The cloud desktop display.

Step S273: In response to the second control instruction of the second type account to the first type account, the control system stops receiving the first multimedia data of the first type account corresponding to the first control instruction.

Specifically, when the second type of account needs to interact with the first type of account for audio and video, the first control instruction can be actively generated to receive the first multimedia of the first type of account corresponding to the first control instruction. data.

In some specific embodiments, when the control system recognizes that the first type of account has audio and video interaction requirements, it can also generate prompt information to the second type of account, so that the second type of account triggers the first control command according to the prompt information The generation. It is possible to identify whether the first type of account has audio and video interaction requirements based on the video recognition of the first type of account, the action recognition of the wearable device, or whether the first type of account clicks the interactive option.

The first multimedia data of the first type of account can be displayed to the first type of account and the second type of account independently of the cloud desktop. In other embodiments, the first multimedia data is embedded in the cloud desktop and displayed to the first type of account and the second type of account. The present invention is not limited by this.

Specifically, after the audio and video interaction between the second type account and the first type account is completed, the second control instruction can be actively generated to stop receiving the first multimedia account of the first type account corresponding to the first control instruction. Body data. As a result, it is possible to prevent the first type of account from affecting the lecture of the second type of account during the course. Furthermore, the load of data transmission can be reduced.

In the foregoing embodiment, the first control instruction and the second control instruction control the multimedia collection device of the user end (ie, the first terminal device) where the first type of account is located. In other words, the first control instruction can control the activation of the multimedia collection device on the client where the first type of account is located, so that the first multimedia data of the first type of account can be received; the second control instruction can control the multimedia of the client where the first type of account is located The collection device is closed, so that it can stop receiving the first multimedia data of the first type of account. The multimedia collection device may include a camera, a microphone, etc., and the present invention is not limited thereto.

In the aforementioned embodiment, the first permission instruction triggers the first control instruction; the second permission instruction triggers the second control instruction. In other words, when the first permission instruction is generated, the generation of the first control instruction is automatically triggered, so that the first type of account can operate the cloud desktop while performing audio and video interaction; when the second permission instruction is generated, the generation of the first control instruction is automatically triggered. The second control instruction causes the first type of account to stop audio and video interaction while stopping operating the cloud desktop.

In another embodiment of the foregoing, the first permission instruction, the second permission instruction, the first control instruction, and the second control instruction are independent instructions, which are triggered based on independent events.

In some specific embodiments, the first-type account responds to the action instruction of the first-type account, triggering the second-type account to generate the first permission instruction for the first-type account. The action instruction may be generated when the video capture device of the first type of account recognizes a preset first action. The action instruction may also be generated when the wearable device of the first type of account recognizes a preset first action. The first action is, for example, a hand-raising action, thereby imitating a real classroom scene. Specifically, the video recognition can recognize the student's arm through the skeleton point, and determine whether the student's arm is a hand-raising action based on the movement of the skeleton point. Since students generally have fewer movements in the course, the video capture device does not require complex and precise recognition algorithms to recognize hand-raising movements. Specifically, according to the gyroscope that comes with the wearable device (such as a wristband), it can recognize students' hand movements. Similarly, students generally have fewer movements. Therefore, the wearable device does not require complex and accurate recognition algorithms to achieve lift Recognition of hand movements. Further, when the action instruction of the first type of account is recognized, the control system may provide prompt information to the second type of account for the second type of account to generate the first permission instruction. In other embodiments, when the action instruction of the first type of account is recognized, the control system may also automatically trigger the second type of account to provide the first permission instruction.

Further, the first control instruction may be triggered in the same manner, for example, in response to an action instruction of a second action of the first type of account. For example, the second action may be an action different from the first action (for example, the first action is raising the right hand, and the second action is raising the left hand), and the present invention is not limited thereto.

In some embodiments of the present invention, the control system responds to the request instruction of the first type account and/or the second type account in the virtual interactive space to associate the virtual interactive space with a management account, and the management account corresponds to a management account. For the convenience of description, the management account referred to below represents the management device. The management account has a third type of permission, which allows the management account to change the association between the virtual interactive space and the first type of account and/or the second type of account, and allows the management account to modify The permission of the first type account and/or the second type account allows the management account to operate the cloud desktop.

In this embodiment, taking into account the unexpected situations that may occur during the course, the virtual interactive space can be entered by the management account for management and adjustment.

The steps of the remote real-time multimedia teaching method of the present invention are described above. Under the premise of not violating the concept of the present invention, the split and merge, sequence change, and synchronous and asynchronous execution of each step are all within the protection scope of the present invention.

The foregoing schematically describes multiple implementation manners of the remote instant multimedia teaching method of the present invention, and the multiple implementation manners can be implemented individually or in combination, and the present invention is not limited thereto.

4 and FIG. 5, FIG. 4 shows a schematic diagram of an embodiment of the remote real-time multimedia teaching system of the present invention; FIG. 5 shows a schematic diagram of a specific embodiment of the module blocks included in the control system in FIG.

The remote real-time multimedia teaching system of this embodiment includes multiple terminal devices 310 and 320 and a control system 330. When the terminal device is logged in with a first type of account, it is used as the first terminal device 310, and when the terminal device is logged in with a second type of account, it is used as the second terminal device 320. The first terminal device 310 and the second terminal device 320 respectively include a first multimedia collection module 311 and a second multimedia collection module 321.

The control system 330 is configured to establish a virtual interactive space associated with the at least one first terminal device 310 and a second terminal device 320 according to the course request, and control the operation of the first terminal device 310 and the second terminal device 320 in the virtual interactive space. interactive. The control system 330 includes a communication module 331 and a cloud desktop module 333. The communication module 331 is used to communicate with each terminal device. The cloud desktop module 333 is used to provide a cloud desktop to at least one first terminal device 310 and a second terminal device 320 in the virtual interactive space, and to operate the cloud desktop in response to operation instructions of various accounts. The control system 330 may also include a permission management module 332. The permission management module 332 is used to manage the permissions of various accounts. The permission management module 332 responds to the second-type account (the second terminal device 320) to the first-type account (the first terminal). The first permission instruction of the device 310) causes the first type of account corresponding to the first permission instruction to change from the first type of permission to the second type of permission, and the permission management module 332 responds to the first permission. The second permission instruction of the second type of account to the first type of account changes the first type of account corresponding to the second permission instruction from the second type of permission to the first type of permission, and the first type of permission is not The cloud desktop is allowed to operate, and the second type of permission is allowed to operate the cloud desktop. The terminal equipment includes a multimedia collection device (that is, the aforementioned multimedia collection module), and the control system 330 may also include a multimedia control module. The multimedia control module is used to respond to the second type of account to the first type of account. The control instruction for controlling the multimedia collection device of the terminal device corresponding to the first type of account.

Specifically, the remote real-time multimedia teaching system provided in this embodiment can support individual control and sharing of a single first-type account (the first terminal device 310). Between the first terminal device 310 and the second terminal device 320 and the control system 330, the underlying protocol is connected via TCP, and the upper layer protocol uses WebRTC to realize instant communication and signaling distribution. The first terminal device 310 and the second terminal device 320 accept the signaling control of the control system 330 and apply for the permission of the local first multimedia collection module 311 and the second multimedia collection module 321 to realize local audio and video Sending and receiving of materials and other teaching-related materials; the first terminal device 310 and the second terminal device 320 receive the audio and video sent by other terminal devices after receiving authorization from the control system 330. The control system 330 controls the access (connection), registration and disconnection (disconnection) of the terminal device, distribution and creation of cloud desktops, and realizes permission control.

The first terminal device 310 and the second terminal device 320 are connected to the control system 330 via a network to perform status and information exchange and interaction, and send responses according to the exchange and interaction results, control and play audio and video, and realize animation and special effects playback. In this embodiment, the second terminal device 320 can control the functions of the first terminal device 310 through the control system 330 (for example, whiteboard, turn on the microphone (also known as microphone), and play video, etc.) to realize the orderly and smooth class communication.

The control system 330 may be responsible for user authentication, resource configuration and signaling distribution, transmission and processing. Connect to all terminal devices through TCP protocol and HTTP service calls; save related logs for analysis by third-party systems, improve system performance, and deal with system problems; storage system-related instructions are requested to the database to facilitate backtracking and customer return visits.

In the specific implementation of the present invention, the remote real-time multimedia teaching system of this embodiment is a cloud desktop system that supports real-time control, interaction and communication among multiple people. In terms of physical distribution, it can be divided into a first terminal device 310, a second terminal device 320, and a control system 330. The first terminal device 310 and the second terminal device 320 are respectively connected and registered to the control system 330. The control system 330 centrally dispatches various permission rights of the first terminal device 310 and the second terminal device 320 in a unified manner, and activates corresponding resources to open a virtual interactive space. After the virtual interactive space is established, the control system 330 can select different communication modes. For example, the control system 330 may select the relay mode, and the control system 330 transmits the requests and traffic of both parties. For another example, the control system 330 can select the P2P mode, the main data is not passed through the control system 330, but is transferred between the first terminal device 310 and the second terminal device 320, and the control system 330 only transmits part of the control instructions.

In some specific implementations of the present invention, in addition to the first type of account and the second type of account, a management account (corresponding to a management terminal device) may also be included. Specifically, the second type of account as a teacher account can control the camera and microphone permissions of the first type of account as a student account, and the first terminal device 310 of the student account is switched to ensure that each student has the opportunity to show himself. And communicate with the teacher. For the management account, the control system 330 can enter the virtual interactive space in a specific way, view the current account list, refresh the status, switch the teacher account, view the overall system operation status, etc., to ensure that the course can proceed smoothly; through the control system 330, The first type of account and the second type of account send request instructions to request the management account to enter the virtual interactive space for viewing and assist in handling abnormal situations.

In some specific implementations of the present invention, the control system 330 includes a communication module 331, a permission management module 332, and a cloud desktop module 333. The communication module 331 of the control system 330 calls and informs the first terminal device 310 and the second terminal device 320 through WebRTC (Web Real-Time Communication) respectively; the cloud desktop module 333 serves the first terminal device through web socket One terminal device 310, the second terminal device 320; the permission management module 332 controls the permission rights between the first terminal device 310, the second terminal device 320 and the cloud desktop module 333 to realize the first type of account and the second type of account The control flow of the account. The control system 330 mainly controls the communication and interaction process of the first terminal device 310, the second terminal device 320 and the cloud desktop, including the first terminal device 310 and the second terminal device 320 after successfully logging in through the control system 330, and then through the Peer of WebRTC 2 Peer (point-to-point) establishes instant messaging and communication, accepts instructions from the control system 330 to control local audio and video, chat information and cloud desktop operations; after the connection is established, the second terminal device 320 can open the cloud desktop module 333 The student client (ie, the first terminal device 310) is invited to join, and the permission management module 332 manages permission to realize one-to-many communication.

In some specific implementations of the present invention, the terminal devices (the first terminal device 310 and the second terminal device 320) are controlled by a permission system module, audio and video processing module, instant messaging processing module, cloud desktop processing module, and The management module consists of five parts. The management module is connected to other modules through messages and backfiles, and coordinates and controls all other modules to form a unified whole. The management module is connected to the control system 330 through a long WebSocket connection, establishes a connection, transmits data, exchanges control signaling, and transmits messages to other modules in time; the main function of the audio and video processing module is to control audio and video playback, and it also needs to communicate with The local multimedia acquisition module is connected, and the video and audio are read through the WebRTC framework, and the audio and video data is transmitted to other terminal devices according to the encoder when the WebRTC connection is created; the main function of the cloud desktop processing module is the cloud desktop response, which accepts various transmissions from the server Control signaling, transmitting feedback signaling to the control system 330, responding to cloud desktop operations to other users; the main work content of the instant messaging processing module includes the transmission and decoding of chat content, refreshing various messages and page frames, and obtaining the latest status; permission The main work content of the control system module is to obtain the permission list according to the current login user to connect to the back-end permission control system, and can carry out effective control, apply for permission, refresh permission and other related operations, and can set different according to different roles Permission, display different content and operation interface. The terminal equipment can be divided into multiple platforms such as iOS, Android, PC and Html5 from the support platform, which supports users to learn and share in class anytime and anywhere.

In some specific implementations of the present invention, the cloud desktop module 333 of the control system 330 can operate the virtual machine through a browser, which is suitable for mainstream browsers such as Chrome, Firefox, IE9+, and does not need to install additional plug-ins to achieve multi-user Remote desktop access and control.

The cloud desktop module 333 may include the following main components: a cloud desktop engine, a client display terminal, an account manager, and a resource manager. In actual use, in order to avoid resource exhaustion and achieve resource control, all instances and resources of the server can be managed globally through the resource manager, and machines can be added in time, the server cluster can be expanded, and the high availability of the service can be guaranteed; the account manager is It is used to control and create accounts, manage and record login/logout operations, realize automatic login of certain accounts, and further improve user experience through subsequent log analysis.

The cloud desktop engine is the core component of the cloud desktop module 333. It has the following advantages. It is completely browser-based. It does not need to install JRE, RDP, VNC and other client plug-ins. It does not need to consider the customer's machine environment and supports multiple protocols; It can manage multiple servers through one authorized machine, avoiding multiple management terminal logins; it can penetrate the firewall and manage other devices that do not provide external network services through one server; HTML5-based remote desktop control framework, High performance.

The account manager of the cloud desktop module 333 is used for verification and supporting login/logout and other related operations. It can be integrated with the third-party system. The third-party system can pre-add the account information of students and teachers to ensure that teachers and students can Log in to the cloud desktop smoothly. Through the account manager, you can count and query related user login status, user login time length, user login geographic location and other related information. After the data is accumulated, you can analyze multiple dimension data such as geographic correlation, role correlation, and time length correlation. Improve users' accurate information push.

The resource manager of the cloud desktop module 333 is used for global resource management. The remote desktop can be created and closed through the resource manager, and the remote desktop can be kicked out or closed in some emergency times to ensure the quality of instant interaction. The introduction of centralized resource management can effectively improve the high availability of services.

In some specific implementations of the present invention, the communication module 331 of the control system 330 is a standard implementation of WebRTC technology, thereby realizing audio and video communication and communication. WebRTC (web instant messaging technology) is simply to introduce instant messaging in the web browser, including audio and video calls, etc., without plug-in programs to achieve the ability of web-side instant messaging, support cross-platform, including linux, windows, mac, android, etc. , WebRTC only stipulates the API implementation of browser manufacturers, and does not make specific regulations on the way of instant messaging. To start a WebRTC session during the instant messaging process, the usual creation process is as follows: (1) The first terminal device 310 and the second terminal device 320 create an RTCPeerConnection object; (2) The processing routine of the icecandidate event created by the first terminal device 310 and the second terminal device 320; (3) The first terminal device 310 and the second terminal device 320 establish a processing routine for tracking events. When the first terminal device 310 and the second terminal device 320 add audio and video to the stream (message stream, message stream), the event Be accepted (4) Create and receive a unique identifier or token, so that the call between them can be identified by the code on the back-end server; (5) The first terminal device 310 and the second terminal device 320 are connected to an agreed back-end server to exchange messages, join the same WebRTC session (scepter ID), and obtain descriptions, candidate addresses, etc.; (6) A connection is established between the first terminal device 310 and the second terminal device 320, and various control commands can be transmitted point-to-point to realize instant communication.

After the WebRTC session connection is created, the first terminal device 310, the second terminal device 320, and the control system 330 can transmit signaling to achieve more functions, such as whiteboard, cloud desktop sharing and other functions, and the control system 330 will record the creation process. After the identification word or token, perform subsequent operations and link to other system linkages.

In some specific implementations of the present invention, the permission management module 332 of the control system 330 can control the permissions owned by each user in the system, such as whether to create cloud desktop sharing, whether to enter a virtual interactive space, and reasonable The permission control can avoid the risk of misoperation and improve the usability of the system. In the permission management module 332, management is performed based on the account category, and functions are opened and controlled for the account category. The account types in the permission management module 332 can be divided into a first type of account, a second type of account, a management account, and other types of accounts, such as parent accounts and sales accounts. The second type of account sends signaling to the first type of account to uniformly control the progress and experience; the management account is used to receive business feedback, deal with problems, view video files and other later methods to further improve the user experience. The first type of account, the second Class accounts can directly give feedback and seek help; parent accounts can realize learning progress through participation and audition in some youth and children course systems, but they cannot participate in course teaching communication; sales accounts only appear in specific types of courses , To absorb feedback in time to promote sales.

The permission management module 332 needs to link with the permission control modules of each terminal device, issue various permission lists, and process the terminal device's application for a new permission, and then promptly respond and notify other terminal devices to process it together.

Therefore, the remote real-time multimedia teaching system of the present invention can effectively improve the connection quality of large-scale users, and does not rely on any plug-in programs, and solves the problem of the need to install additional plug-ins and complex networks during the virtualization process. Teachers and students use the cloud desktop real-time audio and video interactive online teaching system based on WebRTC technology to prevent the course from turning into PPT playback and explanation, promote the classroom interaction effect and effectively improve the teaching effect and learning efficiency.

The foregoing schematically describes multiple implementation manners of the present invention, and the multiple implementation manners can be implemented individually or in combination, and the present invention is not limited thereto.

Next, referring to FIG. 6, FIG. 6 shows a block diagram of modules included in an embodiment of the remote real-time multimedia teaching device of the present invention. The remote real-time multimedia teaching device 400 of this embodiment includes a creation module 410, a providing module 420, a first operation module 430, a first modification module 440, a second operation module 450, and a second modification module 460.

The creation module 410 responds to the reception of the course request of at least one first-type account and one second-type account, and creates a virtual interactive space associated with the at least one first-type account and one second-type account.

The providing module 420 provides cloud desktops to at least one first-type account and one second-type account in the virtual interactive space, wherein the first-type account has the first-type permission, and the first-type permission is not. The first type of account is allowed to operate the cloud desktop, the second type of account has a second type of permission, and the second type of permission allows the second type of account to operate the cloud desktop.

The first operation module 430 responds to the operation instructions of the second type of account to operate the cloud desktop.

The first modification module 440 responds to the first permission instruction of the second type account for the first type account, and changes the first type account corresponding to the first permission instruction from the first type permission to the second type. Permission.

The second operation module 450 responds to the operation instruction of the first type account with the second type permission to operate the cloud desktop.

The second modification module 460 responds to the second permission instruction of the second type account for the first type account, so that the first type account corresponding to the permission instruction is changed from the second type permission to the first type permission. .

In the remote real-time multimedia teaching device of the exemplary embodiment of the present invention, on the one hand, the present invention can provide a cloud desktop to an account located in the virtual interactive space by establishing a virtual interactive space, and the cloud desktop can be based on different account permissions. Operate to realize the interaction in the virtual interactive space; on the other hand, the present invention allows the second type of account to change the permission of the first type of account through the permission association between accounts, so as to carry out the interaction in the course. Order management; on the other hand, the present invention can provide cloud desktop and multimedia interaction without plug-in programs, and solves the problem of installing additional plug-in programs and complicated networks during the virtualization process.

FIG. 6 only schematically shows the remote real-time multimedia teaching device 400 provided by the present invention. Without violating the concept of the present invention, the splitting, merging, and adding of modules are all within the protection scope of the present invention. The remote real-time multimedia teaching device 400 provided by the present invention can be implemented by software, hardware, firmware, plug-in programs, and any combination between them, and the present invention is not limited to this.

In an exemplary embodiment of the present invention, a computer-readable recording medium is also provided, in which a computer program is stored. When the program is executed by, for example, a processor, the remote real-time multimedia described in any of the above embodiments can be implemented. Steps of teaching method. In some possible implementation manners, various aspects of the present invention can also be implemented in the form of a program product, which includes a program code. When the program product runs on a terminal device, the program code is used to make the terminal The device executes the steps of the remote real-time multimedia teaching method described in any of the above embodiments.

Referring to FIG. 7, it shows an embodiment of the program product 700 of the present invention for implementing the above method. It can use CD-ROM and include program code, and can be used in a terminal device, such as a personal computer. Run on. However, the program product of the present invention is not limited to this. In the present invention, a computer-readable recording medium can be any tangible medium that contains or stores a program. The program can be used by or combined with an instruction execution system, device, or device. .

The program product can use any combination of one or more readable media. The readable medium may be a readable signal medium or a computer-readable recording medium. The computer-readable recording medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable recording media include: electrical connections with one or more wires, portable optical discs, hard drives, random access memory (RAM), read-only Memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM), optical memory components, magnetic memory components, Or any suitable combination of the above.

The computer-readable recording medium may include a data signal propagated in a baseband or as a part of a carrier wave, and a readable program code is carried therein. This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The computer-readable recording medium may also be any readable medium other than the computer-readable recording medium. The readable medium can be sent, propagated or transmitted for use by or in combination with the instruction execution system, device, or device. Program. The program code contained on the computer-readable recording medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, radio frequency (RF), etc., or any suitable combination of the above.

The programming code used to perform the operations of the present invention can be written in any combination of one or more programming languages. The programming languages include object-oriented programming languages—such as Java, C++, etc., as well as conventional procedural programming. Language-such as "C" language or similar programming language. The code can be executed entirely on the tenant computing device (applied multi-tenancy technology (multi-tenancy technology) or equipment called multi-tenancy technology), partly on the tenant’s equipment, executed as an independent software package, and partly on the tenant Part of the computing device is executed on the remote computing device, or completely executed on the remote computing device or server. In the case of remote computing devices, the remote computing device can be connected to the tenant computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (such as Use an Internet service provider to connect via the Internet).

In an exemplary embodiment of the present invention, an electronic device is also provided. The electronic device may include a processor and a memory for storing instructions executable by the processor. Wherein, the processor is configured to execute the steps of the remote instant multimedia teaching method in any one of the above embodiments by executing the executable instructions.

Those skilled in the art can understand that various aspects of the present invention can be implemented as systems, methods or program products. Therefore, various aspects of the present invention can be implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, here Can be collectively referred to as "circuits", "modules" or "systems."

The electronic device 500 according to this embodiment of the present invention will be described below with reference to FIG. 8. The electronic device 500 shown in FIG. 8 is only an example, and should not bring any limitation to the function and application scope of the embodiment of the present invention.

As shown in FIG. 8, the electronic device 500 is represented in the form of a general-purpose computing device. The components of the electronic device 500 may include but are not limited to: at least one processing unit 510, at least one storage unit 520, a bus bar 530 connecting different system components (including the storage unit 520 and the processing unit 510), a display unit 540, and the like.

Wherein, the storage unit 520 stores a program code, and the program code can be executed by the processing unit 510, so that the processing unit 510 executes the various exemplary embodiments described in the remote real-time multimedia teaching method of the present invention. A step of. For example, the processing unit 510 may perform the steps shown in FIG. 1 and FIG. 3.

The storage unit 520 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 5201 and/or a cache storage unit 5202, and may further include a read-only storage unit (ROM) 5203.

The storage unit 520 may also include a program/utility tool 5204 having a set (at least one) program module 5205. Such program module 5205 includes but is not limited to: an operating system, one or more application programs, and other program modules. Groups and program data, each of these examples or some combination may include the realization of the network environment.

The bus 530 may represent one or more of several types of bus structures, including a storage unit bus or a storage unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or any bus structure using multiple bus structures Local bus.

The electronic device 500 can also communicate with one or more external devices 600 (such as keyboards, pointing devices, Bluetooth devices, etc.), and can also communicate with one or more devices that enable tenants to communicate and interact with the electronic device 500, and/or It communicates with any device (such as a router, a modem, etc.) that enables the electronic device 500 to communicate with one or more other computing devices. This communication can be carried out via an input/output (I/O) interface 550. In addition, the electronic device 500 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through a network interface card 560. The network interface card 560 can communicate with other modules of the electronic device 500 through the bus 530. It should be understood that although not shown in the figure, other hardware and/or software modules can be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID System, tape drive and data backup storage system, etc.

Through the description of the above embodiments, those skilled in the art can easily understand that the example embodiments described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present invention can be implemented in the form of a software product, which can be stored in a non-volatile computer-readable recording medium (which can be a CD-ROM, USB flash drive, or mobile hard disk). Etc.) or on the network, including several instructions to make a computing device (which can be a personal computer, a server, or a network device, etc.) execute the aforementioned remote real-time multimedia teaching method according to the embodiment of the present invention.

Compared with the prior art, the advantages of the present invention are: on the one hand, the present invention can provide a cloud desktop to an account located in the virtual interactive space through the establishment of a virtual interactive space. The cloud desktop can be operated according to different account permissions to realize virtual Interaction in the interactive space; on the other hand, the present invention allows the second type of account to change the permission of the first type of account through the permission association between accounts, so as to manage the interaction in the course in an orderly manner; On the one hand, the present invention can provide cloud desktop and multimedia interaction without plug-in programs, and solves the problem of the need to install additional plug-ins and complex networks during the virtualization process.

After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other embodiments of the present invention. This application is intended to cover any variations, uses, or adaptive changes of the present invention. These variations, uses, or adaptive changes follow the general principles of the present invention and include common knowledge or conventional technical means in the technical field not disclosed by the present invention. . The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are contained in the appended patent scope.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

S110~S160: steps S171~S173: steps 200: display interface 201: Cloud Desktop 202: Teacher video area 203, 204: Student video area 205: Discussion area 310: The first terminal device 311: The first multimedia collection module 320: second terminal device 321: The second multimedia acquisition module 330: Control System 331: Communication module 332: Permission Management Module 333: Cloud Desktop Module 400: Remote real-time multimedia teaching device 410: Create a module 420: Provide modules 430: The first operation module 440: First Modification Module 450: The second operation module 460: Second Modification Module 500: electronic equipment 510: Processing Unit 520: storage unit 530: Bus 540: display unit 550: I/O interface 560: network interface card 5201: RAM 5202: Cache storage unit 5203: ROM 5204: Programs/Utilities 5205: program module 600: External device 700: Program products

Other features and effects of the present invention will be clearly shown in the embodiments with reference to the drawings, in which: Figure 1 shows a flowchart of an embodiment of the remote real-time multimedia teaching method of the present invention; FIG. 2 shows a schematic diagram of the cloud desktop of this embodiment; Figure 3 shows a flowchart of multimedia control in the remote real-time multimedia teaching method of this embodiment; 4 shows a block diagram of equipment included in an embodiment of the remote real-time multimedia teaching system of this embodiment; 5 shows a block diagram of modules included in the control system in the remote real-time multimedia teaching system of this embodiment; 6 shows a block diagram of modules included in an embodiment of the remote real-time multimedia teaching device of the present invention; Figure 7 shows a schematic diagram of an embodiment of a computer-readable recording medium of the present invention; and FIG. 8 shows a schematic block diagram of a circuit included in an embodiment of the electronic device of the present invention.

S110~S160: steps

Claims (15)

A remote real-time multimedia teaching method, including: A control system responds to the reception of a course request for a first terminal device corresponding to at least one first type account and a second terminal device corresponding to a second type account, and establishes an association with the at least one first type account and A virtual interactive space of the second type of account; The control system provides cloud desktops to the at least one first-type account and the second-type account in the virtual interactive space, wherein the first-type account has the first-type permission, and the first-type permission is not. Allow operation of the cloud desktop, the second type of account has a second type of permission, and the second type of permission to operate the cloud desktop; The control system responds to the operation instructions of the second type of account to operate the cloud desktop; The control system responds to the first permission instruction of the second type account for the first type account, so that the first type account corresponding to the first permission instruction is changed from the first type permission to the second type permission; The control system responds to the operation instruction of the first-type account with the second-type permission to operate the cloud desktop; and The control system responds to the second permission instruction of the second type account for the first type account, so that the first type account corresponding to the second permission instruction is changed from the second type permission to the first type permission. The remote real-time multimedia teaching method according to claim 1, wherein after establishing a virtual interactive space associated with the at least one first-type account and the second-type account, the method further includes: The control system provides second multimedia data of the second type of account to at least one first type of account in the virtual interactive space, and the second multimedia data is displayed in the cloud desktop or independent of all The cloud desktop display. The remote real-time multimedia teaching method according to claim 1, wherein after establishing a virtual interactive space associated with the at least one first-type account and the second-type account, the method further includes: The control system responds to the first control instruction of the second type account to the first type account, and receives the first multimedia data of the first type account corresponding to the first control instruction; The control system provides the first multimedia data of the first type of account to the second type of account in the virtual interactive space, and the first multimedia data is displayed in the cloud desktop or independent of the cloud Desktop display; and In response to the second control instruction of the second type account to the first type account, the control system stops receiving the first multimedia data of the first type account corresponding to the first control instruction. The remote instant multimedia teaching method according to claim 3, wherein the first control instruction and the second control instruction control the multimedia collection device of the first terminal device corresponding to the first type of account. The remote real-time multimedia teaching method according to claim 3, wherein the first permission instruction triggers the first control instruction; the second permission instruction triggers the second control instruction. The remote real-time multimedia teaching method according to claim 3, wherein the control system responds to the action instruction of the first type of account to trigger the second type of account to generate the first permission for the first type of account instruction. The remote real-time multimedia teaching method according to claim 6, wherein the action instruction is that the first terminal device corresponding to the first type of account recognizes the preset based on a video capture device corresponding to the first type of account. Generated when the first action is set. The remote instant multimedia teaching method according to claim 6, wherein the action instruction is that the first terminal device corresponding to the first type account recognizes a preset based on a wearable device corresponding to the first type account Generated during the first action. The remote real-time multimedia teaching method according to claim 1, wherein the control system responds to the request instruction of the first type account and/or the second type account in the virtual interactive space, so that the virtual interactive space is associated with a management Account, the management account corresponds to a management terminal device and has a third type of permission, which allows the management account to change the relationship between the virtual interactive space and the first type of account and/or the second type of account Associating, allowing the management account to modify the permissions of the first type of account and/or the second type of account, and allowing the management account to operate the cloud desktop. A remote real-time multimedia teaching device, including: A creation module, in response to receiving a course request of at least one first-type account and a second-type account, establishes a virtual interactive space associated with the at least one first-type account and a second-type account; A providing module for providing cloud desktops to at least one first-type account and one second-type account in the virtual interactive space, wherein the first-type account has the first-type permission, and the first-type permission The first type of account is not allowed to operate the cloud desktop, the second type of account has a second type of permission, and the second type of permission allows the second type of account to operate the cloud desktop; A first operation module, operating the cloud desktop in response to the operation instruction of the second type of account; A first modification module, in response to the first permission instruction of the second type account for the first type of account, so that the first type of account corresponding to the first permission instruction is changed from the first type of permission to the second Class permission A second operation module, in response to the operation instruction of the first type account with the second type permission, to operate the cloud desktop; and A second modification module, in response to the second permission instruction of the second type of account for the first type of account, changes the first type of account corresponding to the second permission instruction from the second type of permission to the first Class permissions. A remote real-time multimedia teaching system, including: A plurality of terminal devices, used as the first terminal device when the terminal device is logged in with the first type of account, and used as the second terminal device when the terminal device is logged in with the second type of account; A control system for establishing a virtual interactive space associated with the at least one first terminal device and a second terminal device according to a course request, and controlling the interaction between the first terminal device and the second terminal device in the virtual interactive space, and include: A communication module for communicating with each terminal device; A cloud desktop module for providing a cloud desktop to at least one first terminal device and the second terminal device in the virtual interactive space, and operating the cloud desktop in response to operation instructions of various accounts; A permission management module for managing permissions of various accounts, wherein the permission management module responds to the first permission instruction of the second type of account for the first type of account, so that the first The first type of account corresponding to the permission instruction is changed from the first type of permission to the second type of permission, and the permission management module responds to the second permission instruction of the second type of account for the first type of account, The first type of account corresponding to the second permission instruction is changed from the second type of permission to the first type of permission, the first type of permission is not allowed to operate the cloud desktop, and the second type of permission to operate The cloud desktop. The remote instant multimedia teaching system according to claim 11, wherein the terminal device communicates with the cloud desktop module via websocket; the terminal device communicates with the communication module via webRTC. The remote real-time multimedia teaching system according to claim 11, wherein the cloud desktop module is implemented based on a browser. An electronic device including: A processor; and A memory in which a computer program is stored, and when the computer program is run by the processor, the remote real-time multimedia teaching method according to any one of request items 1 to 9 is executed. A computer-readable recording medium, wherein a computer program is stored in the computer-readable recording medium, and when the computer program is run by a processor of a terminal device, it can execute any one of request items 1-9 The described remote real-time multimedia teaching method.

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