Cross-terminal grouping discussion system

Abstract

According to the cross-terminal grouping discussion system provided by the invention, hard connection is replaced by network flexible connection, so that the main control terminal and the group terminals can easily establish connection through a local area network, personal terminals are supported to participate in grouping discussion, and a simple, convenient and efficient implementation mode is provided for cross-terminal grouping discussion.

Description

Technical Field

[0001] The invention belongs to the field of teaching technology, and in particular relates to a cross-terminal group discussion system. Background Art

[0002] As an important part of modern education, smart classrooms are widely used in various teaching scenarios. Their purpose is to enhance classroom interaction and improve student participation and learning outcomes by integrating advanced hardware and software tools. In group discussion teaching, smart classrooms are usually equipped with intelligent interactive devices such as touch screens, mobile devices, and wireless projection screens to support real-time interaction between teachers and students. This group discussion teaching mode can not only improve classroom interactivity, but also effectively cultivate students' critical thinking and teamwork skills.

[0003] However, the existing smart classroom group discussion system still faces many technical limitations in practical applications, which are mainly reflected in the following aspects:

[0004] Equipment dependence and complex connection: Most current group discussion systems rely on hardware connections such as High Definition Multimedia Interface (HDMI) to connect a large screen as a display to an interactive box. This type of solution not only increases hardware costs, but also requires a large number of cable connections, increases the complexity of the connection, and is prone to affecting the stability of the system due to loose connections. In addition, different hardware devices often use manufacturer-specific serial port commands to control signal source switching, lacking a unified connection standard, which limits the compatibility and scalability of the system.

[0005] Poor cross-terminal compatibility: The existing system has poor compatibility with operating systems and usually only supports specific operating systems or customized devices, which limits the use of students' bring-your-own-devices (BYOD). For teaching scenarios that require cross-operating systems such as Windows, Kylin, Tongxin, Android, Hongmeng, and iOS, the existing solutions are difficult to achieve seamless collaboration between different terminals and cannot meet diverse teaching needs, resulting in low resource utilization and limiting the flexibility and intelligence of teaching.

[0006] Single interactive function: In the existing smart classroom group discussion mode, the interaction between teachers and students is often limited to simple screen sharing or broadcasting mode. Some solutions only provide real-time broadcast control on the teacher side, lacking real-time interaction and teacher annotation functions for group discussions, making it difficult to accurately track and provide targeted feedback on real-time discussions of each group, reducing the teaching effect of group discussions.

[0007] Insufficient data storage and convenience: Most existing smart classroom systems lack effective data storage and review functions. After the discussion, it is difficult for teachers and students to conveniently save and reuse the discussion content. This system design that lacks data retention and secondary use is not conducive to students' review and knowledge consolidation after class.

[0008] In order to overcome these shortcomings, a more convenient, scalable and compatible smart classroom group discussion system is needed to meet the interoperability requirements of different teaching equipment, optimize classroom interaction effects, and improve the convenience of teaching management. Summary of the invention

[0009] In view of the above problems, the present invention proposes a cross-terminal group discussion system, which replaces hard connections with network soft connections, enables the main control terminal and the group terminals to easily establish connections through the network, and supports personal terminals to participate in group discussions, providing a simple and efficient implementation method for cross-terminal group discussions.

[0010] In order to solve the above technical problems, the embodiments of the present invention disclose the following technical solutions:

[0011] One aspect of the present invention provides a cross-terminal group discussion system, which is applied to a group discussion platform including multiple terminals, and the system includes:

[0012] A role allocation module connected to all terminals for communication, configured to automatically identify the type of each terminal and allocate roles, including a master terminal, a group terminal and a personal terminal;

[0013] A discussion module in communication with the role allocation module, configured to transmit discussion content and / or screen content to at least one group terminal and / or individual terminal in real time according to instructions sent by the main control terminal;

[0014] The discussion module is also configured to transmit the discussion results to the main control terminal according to the instructions of the group terminal and / or the individual terminal.

[0015] Optionally, the system further includes an encoding module, a transmission module and a decoding module, wherein:

[0016] The encoding module is in communication with the discussion module and is configured to compress and encode the discussion data of all terminals, wherein the discussion data includes discussion content, screen content and discussion results;

[0017] The transmission module is in communication with the encoding module and is configured to transmit the encoded discussion data between different terminals;

[0018] The decoding module is in communication with the transmission module and is configured to decode the research data received by the terminal into original data.

[0019] Optionally, all terminals are connected via a wireless network and / or a wired network.

[0020] Optionally, the system further comprises a whiteboard module configured to record in a whiteboard form the text, annotations and pictures input by the main control terminal and the group terminals during the discussion process.

[0021] Optionally, the system also includes an interactive module configured to perform attendance, selection of candidates for answers, classroom discussion and resource sharing functions according to instructions from the main control terminal.

[0022] Optionally, the system further comprises a remote module configured to send the discussion content and / or screen content of the main control terminal to the remote terminal in real time.

[0023] Optionally, the system further includes an inter-group module configured to allocate independent storage space to each group terminal to record the discussion results within the group.

[0024] Optionally, the system further comprises a display module configured to display the discussion results sent by the group terminal and / or the individual terminal on the main control terminal.

[0025] Optionally, the system further comprises a sharing module configured to share the discussion results of the group terminal or the individual terminal to each group terminal according to the instruction of the main control terminal.

[0026] Optionally, the system further comprises a storage module configured to store discussion content and discussion results, and to send the discussion content and / or discussion results to the personal terminal according to a download instruction of the personal terminal.

[0027] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0029] Figure 1 A schematic diagram of the structure of a cross-terminal group discussion teaching system provided by an embodiment of the present invention;

[0030] Figure 2 A functional schematic diagram of a cross-terminal group discussion teaching system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0033] Figure 1 Schematic diagram of a cross-terminal group discussion system disclosed in an embodiment of the present invention, the system is applied to a group discussion platform including multiple terminals, such as Figure 1 As shown, the system includes the following submodules:

[0034] (I) Role allocation module

[0035] In the disclosed embodiment of the present invention, there are multiple terminals participating in the discussion at the same time. Taking teaching discussion as an example, the discussion terminals include the teacher's main control terminal, the group terminal of the discussion group, and the student's personal terminal. Each terminal is provided with a screen, among which the main control terminal is provided with a large teaching screen.

[0036] The role allocation module 1 is respectively connected to all terminals for communication, and can automatically identify the type of each terminal and allocate roles, wherein the roles include a master terminal, a group terminal and a personal terminal.

[0037] First, the role allocation module 1 accurately identifies the type of each terminal through parameters such as the device's hardware characteristics, operating system, screen size, and access method. For example: the master terminal is usually a teacher's desk computer or a large-screen device that supports high-performance data processing and comprehensive control functions; the group terminal is generally a large-screen device in the group discussion area, which is used for discussion, presentation, and interaction among group members; the personal terminal is usually a student's own device, such as a mobile phone, tablet, or laptop, which is mainly used for personalized learning, resource sharing, and participation in classroom activities.

[0038] After identifying the terminal type, the system automatically assigns roles to each terminal according to the preset role configuration logic and current discussion needs. The master terminal, as the core control center, is responsible for commanding the overall situation, initiating discussion tasks, managing group activities, etc. Group terminals are assigned to specific groups and are responsible for sharing group discussion data, displaying discussion results, and interacting with other terminals. Personal terminals serve as auxiliary roles, participating in group or class activities, submitting discussion content, and participating in interactions by scanning codes or the Internet.

[0039] Secondly, during the group discussion, the role allocation module 1 supports dynamic adjustment. If the main control terminal device fails, the group terminal can be automatically or manually upgraded to a temporary main control terminal to ensure that teaching activities are not interrupted. When the group terminal is offline or fails, the personal terminal can be reallocated as the group terminal to participate in the discussion. If individual students need to temporarily exit or join, the system can quickly adjust the role configuration of their personal terminals to ensure flexibility.

[0040] (II) Research Module

[0041] The discussion module 2 is connected to the role allocation module 1 in communication, and after determining the roles of each terminal, can transmit the discussion content and / or screen content in real time to at least one group terminal and / or personal terminal according to the instructions sent by the main control terminal, wherein the discussion content includes whiteboard writing, discussion materials, and discussion results of the group terminal and / or personal terminal, etc., which are involved in the discussion process. The whiteboard writing can record the real-time handwriting content, annotations and charts of the teacher at the main control terminal, so that the group terminal or personal terminal can synchronously follow the teaching rhythm. The discussion materials can include text, pictures, videos and multimedia files.

[0042] For example, the teacher initiates a data sharing command through the main control terminal, and transmits the whiteboard and teaching materials to all group terminals in real time so that group members can study together. In response to the personalized teaching needs of a certain group or student, the discussion module 2 can push customized discussion content separately to ensure teaching in accordance with students' aptitude.

[0043] Discussion module 2 supports data sharing and collaboration functions in a variety of interactive scenarios, such as group terminal discussions. Group members can conduct collaborative discussions on the large screen of the group terminal through touch or input devices, and the content is transmitted back to the main control terminal in real time, which is convenient for teachers to supervise and guide. In addition, students can receive discussion content through personal terminals, participate in discussions independently or submit learning results, enhancing personalized learning experience.

[0044] Discussion module 2 has an intelligent synchronization mechanism, which can dynamically adjust the transmission range and direction of discussion content according to the instructions of the main control terminal. For example, in the whole class sharing mode, the main control terminal can be operated with one click, and the discussion content can be synchronized to all group terminals and personal terminals; in the group discussion mode, each group terminal receives the designated discussion task, and the group members process it independently on their personal terminals and then merge the results into the group terminal for display; in the inter-group collaboration mode, discussion module 2 supports the mutual transmission of content between group terminals, promoting the collision of ideas and sharing of results between groups.

[0045] (III) Encoding module, transmission module and decoding module

[0046] In one embodiment disclosed in the present invention, the system further includes an encoding module 3, a transmission module 4 and a decoding module 5, wherein:

[0047] The encoding module 3, as the front-end processing unit of the system, is connected to the discussion module 2 in communication. Its main function is to compress and encode the discussion data of all terminals. Discussion data includes discussion content (such as teacher's blackboard writing, courseware content, screen sharing information), screen content and discussion results (such as whiteboard content of group discussion, submitted homework or student speech records).

[0048] The encoding module 3 adopts efficient video, audio and data compression algorithms (such as H.264, AAC, etc.) to significantly reduce the bandwidth required for data transmission, providing support for the real-time performance and stability of the system.

[0049] The encoding module 3 can also dynamically adjust the compression ratio according to changes in the network environment (such as bandwidth and delay), ensuring that the seminar data of acceptable quality can still be transmitted when the network conditions are poor. In addition, it supports multiple data formats (such as text, images, audio, and video), meeting the transmission needs of different types of data in classroom teaching.

[0050] The transmission module 4 is in communication connection with the decoding module 5, and uses a data transmission protocol written in standard C++ language, which can transmit the encoded research data between different terminal devices, and has the characteristics of low coupling, portability, high multiplexing, etc.

[0051] The transmission module 4 is the hub connecting the encoding module 3 and the decoding module 5, and is responsible for efficiently and reliably transmitting the encoded research data between different terminal devices.

[0052] Transmission module 4 uses a standardized data transmission protocol to ensure the rapid transmission of discussion data between different terminals. Through low-latency streaming media transmission technology, the module ensures that there is no obvious delay or freeze in the data transmission process, meeting the needs of real-time interaction in teaching scenarios. At the same time, transmission module 4 has a built-in error checking mechanism to ensure that data will not be lost or damaged due to packet loss or network fluctuations during transmission.

[0053] The decoding module 5 is connected to the transmission module 4 as the back-end processing unit of the system. Its main function is to decode the discussion data received by each terminal into original data for display or further processing by the terminal device.

[0054] The decoding module 5 uses a decoding algorithm that matches the encoding module 3 to restore the compressed data to high-quality audio, video or other teaching content, ensuring that the display effect is consistent with the original data. In addition, the decoding module 5 optimizes the hardware capabilities and system environment of different terminal devices (such as the main control terminal, group terminal, and personal terminal) to provide a smooth decoding and display experience. At the same time, the module supports multi-stream decoding and can process data streams from multiple terminals at the same time, such as displaying the content of multiple group terminals on the main control terminal at the same time.

[0055] The group discussion system disclosed in the present invention has a cross-platform compatibility design, which can realize group discussion and teaching functions supporting different operating systems such as Windows, Kylin, Tongxin, Android, Hongmeng, iOS, etc. on the main control terminal and the group terminal, which not only improves the applicability of the system, but also significantly reduces the deployment cost, enabling it to flexibly adapt to different hardware devices.

[0056] The system adopts standardized data transmission protocols (such as WebRTC and TCP / IP protocols). For example, in local interaction, RTP, WebRTC, Wi-Fi P2P, AirPlay, TCP / IP and other transmission protocols are used to achieve data intercommunication between different operating systems through the broadcast / multicast capabilities of the local area network. The encoding module 3 and the decoding module 5 are adapted based on the hardware encoder and decoder of the system to ensure that the discussion data can be seamlessly decoded and displayed on each terminal. In addition, the system adopts a highly modular and platform-independent design, and the core logic is written in standardized C++ language. For the broadcast / multicast protocol (transmission mode) of the local area network, the "connection" mechanism, data fragmentation, transmission (sending and receiving), data integrity verification, data recovery FEC, and data merging are written in standardized C++ language, which is independent of the operating system and has the characteristics of high cohesion, low coupling and excellent portability. It can be easily ported to multiple platforms (Windows, Kylin, Tongxin, Android, Hongmeng, iOS, etc.) to realize the group discussion function across terminal systems. For platform-specific functional requirements, expansion is carried out through plug-ins or adaptation layers to ensure functional consistency.

[0057] In one embodiment disclosed in the present invention, all terminals are connected through wireless network and / or wired network communication. The system does not require complex hardware support, and the interconnection between terminals can be achieved through network soft connection. Network soft connection includes wireless network connection such as Wi-Fi, and also includes wired network. The network soft connection disclosed in the embodiment of the present invention abandons the traditional method of using HDMI signal line to make video matrix, or using the picture signal output by the newly added hardware capture device to transmit the picture. The operation instructions (the main control terminal sends instructions to other terminals to start sharing, receive sharing, etc.) and the online status are verified through the network, the captured device screen content is encoded, and the picture is transmitted through the broadcast / multicast protocol of the local area network, thereby realizing the "video matrix" function.

[0058] The communication connection method disclosed in the present invention can effectively avoid the limitations of the traditional solution that relies on hard-wired wiring harnesses or specific hardware, and further enhances the cross-platform flexibility. In addition, the main control module can obtain the online status of the group terminal in real time.

[0059] (IV) Whiteboard Module

[0060] In an embodiment disclosed in the present invention, the system further includes a whiteboard module 6 for recording, in a whiteboard format, text, annotations, pictures and other contents input by the main control terminal and the group terminals during the discussion process.

[0061] Whiteboard module 6 is a key interactive functional unit in the group discussion system, which can provide an intuitive and efficient collaborative environment for teachers and students. Whiteboard module 6 can record the text and pictures input by the main control terminal and the group terminal during the discussion process, realize real-time sharing and storage of information, and provide convenient tool support for classroom discussions and group discussions.

[0062] For example, the teacher can input explanatory text through the whiteboard module 6 of the main control terminal to illustrate the teaching focus, summarize the discussion content or assign tasks; group members can use the whiteboard module 6 of the group terminal to record key ideas, conclusions or draft answers during the discussion, and the text content will be synchronized to the group whiteboard in real time.

[0063] The whiteboard module 6 supports drawing handwritten notes, graphics and flow charts. Teachers can draw teaching-related diagrams on the main control terminal, and group members can draw discussion mind maps or program diagrams through the group terminal. In addition, teachers or students can upload pictures as teaching materials or discussion results through the whiteboard module 6, and annotate and edit them.

[0064] The main control terminal can synchronize the whiteboard content of the group terminal in real time, so that the teacher can grasp the discussion progress of each group and display the whiteboard content of some groups on the main control screen for comments or explanations as needed. Through the real-time split-screen display function, the whiteboard content of multiple groups can be presented at the same time, promoting mutual learning and communication between different groups.

[0065] Whiteboard module 6 can also automatically save all content entered during the discussion and record the operation history in timeline. Teachers and students can review the whiteboard content at any time to avoid missing information. At the same time, they can restore the whiteboard status to a certain point in time to facilitate comparison of discussion results at different stages.

[0066] Teachers can directly annotate the whiteboard content on the group terminal to provide guidance or mark important content. Group members can also mark, modify or add comments to other members' input content to improve team collaboration efficiency.

[0067] Whiteboard module 6 supports exporting text and image content as PDF or image files for subsequent sharing, archiving or printing. In addition, the master terminal can synchronize the whiteboard content of a group to all group terminals through the one-click distribution function, promoting the extensive exchange of discussion results.

[0068] (V) Interactive Module

[0069] In another embodiment disclosed in the present invention, the system further includes an interactive module 7, which is used to perform functions such as attendance, selecting people to answer questions, classroom discussion and resource sharing according to the instructions of the main control terminal. The specific implementation method can refer to the following content:

[0070] 1. Students can sign in by scanning the QR code through a personal terminal or a group terminal, or complete the class attendance through the system's automatic recognition of login status. The attendance results are synchronized to the main control terminal in real time for display.

[0071] 2. The teacher can click the random selection function through the main control terminal, and the system will automatically select students at random from the signed-in students to improve students' attention and class participation. The teacher can also manually select students to answer questions from the student list as needed, or designate groups to answer questions, flexibly adapting to different teaching scenarios.

[0072] Interactive module 7 will record students' answers in real time, and teachers can directly give feedback or scores, while saving students' answer records for subsequent teaching analysis.

[0073] 3. The teacher can initiate a discussion topic through the main control terminal and distribute it to each group terminal. Each group will discuss on the group screen and record the discussion results through the whiteboard or text. The teacher can also select the group discussion results to display on the big screen, and other group members can view them in real time and give comments or supplements to promote cross-group communication.

[0074] The system supports multiple discussion methods such as text input, voice discussion records, image upload and file sharing to meet different teaching needs.

[0075] 4. Students can upload learning materials or research results to the system through mobile devices and display them centrally through the main control terminal or group terminal. The system can also generate a unique QR code, and students can quickly upload resources by scanning the code without complicated network settings or hardware configuration.

[0076] Teachers can distribute a group's discussion results or learning resources to all group terminals through the main control terminal to achieve efficient information sharing.

[0077] 5. Teachers can initiate classroom voting or questionnaires through the interactive module 7, and students can participate through mobile devices. The results are counted in real time and presented on the main control terminal to help teachers understand students' opinions or learning status.

[0078] 6. Teachers can assign learning tasks or homework, and students can upload them through the interactive module 7 after completion, and teachers can directly give feedback and evaluation.

[0079] (VI) Remote Module

[0080] In one embodiment disclosed in the present invention, the system further includes a remote module 8 for sending the discussion content and / or screen content of the main control terminal to the remote terminal in real time.

[0081] The remote module 8 can capture the real-time screen content on the main control terminal, including teaching images, whiteboard writing, multimedia presentations and discussion content. The discussion content and screen content of the main control terminal are processed by the encoding module 3 and compressed into an efficient data stream, which ensures the transmission quality while reducing the network bandwidth occupation.

[0082] The remote module 8 uses WebRTC, RTMP or other optimized real-time transmission protocols to transmit the encoded discussion content and / or screen content to the remote terminal. The system automatically detects the network status and dynamically adjusts the transmission bit rate to ensure smooth image transmission under different network conditions.

[0083] The remote terminal at the receiving end decodes the received data stream into the original screen content through the decoding module 5 and displays it synchronously. The remote terminal can be a screen in another classroom, a teacher's mobile device, or a student's personal device.

[0084] (VII) Inter-group module

[0085] In one embodiment disclosed in the present invention, the system further includes an inter-group module 9 for allocating an independent storage space to each group terminal to record the discussion results within the group.

[0086] When each group terminal enters the system, the inter-group module 9 will automatically allocate an independent storage space for it. The storage space is logically isolated to ensure that the data between different groups will not interfere or confuse each other. The content entered by group members through the group terminal, such as whiteboard writing, files, pictures, videos and other discussion results, will be stored in real time in the allocated independent space.

[0087] The inter-group module 9 can work in conjunction with other functional modules. For example, when a group's discussion results need to be presented, the inter-group module 9 can synchronize the stored content to the teacher's terminal or other group terminals in real time. The system supports cloud backup function. The inter-group module 9 will regularly synchronize the stored content of each group to the cloud storage to prevent data loss caused by local device failure.

[0088] During the group discussion stage, each group terminal can use its independent storage space to record discussion content, such as brainstorming results, problem analysis, learning plans, etc., to facilitate collaboration within the group. The teacher can centrally manage the storage content of all groups through the inter-group module 9, view the discussion progress and results, and provide timely feedback and guidance.

[0089] Teachers can retrieve the discussion results of a specific group from the inter-group module 9 and present them to the whole class or other groups to achieve demonstration and experience exchange. After the discussion, the group can archive the content in the storage space to form a group knowledge base to provide reference for subsequent learning or review. In addition, group members can download the data in the storage space by scanning the code, or directly share it with other members through the system to further consolidate the learning effect.

[0090] (VIII) Display Module

[0091] In one embodiment disclosed in the present invention, the system further includes a display module 10 for displaying the discussion results sent by the group terminal and / or the individual terminal on the main control terminal.

[0092] The display module 10 can receive the discussion results sent by the group terminal or individual terminal in real time, including text, pictures, videos, multimedia files, etc., and display them synchronously on the main control terminal. The system supports the simultaneous display of the discussion results of multiple groups or individuals. The teacher can freely choose the source of the display content, for example, select 4 group terminals for parallel display, which is convenient for the whole class to compare and discuss.

[0093] Teachers can manage the display content through the main control terminal, such as sorting, selecting, zooming in, annotating, and commenting or marking the display content. The marked information can be synchronized back to the corresponding group terminal in real time.

[0094] The presentation module 10 is seamlessly integrated with the system's sharing module. Teachers can choose to send the presentation content of a group or individual to other groups or the entire class with one click, promoting full participation and resource sharing.

[0095] After completing the discussion, students in the group terminal or individual terminal can submit the discussion results to the main control terminal through the submission function in the system. The teacher can view all submitted discussion contents in the main control terminal and select the source of the displayed content as needed.

[0096] The display module 10 provides a variety of display layout options, such as single-screen carousel, split-screen display, dynamic scrolling, etc., to meet the needs of different teaching scenarios. The teacher explains the display content through the main control terminal, and supports key annotation, modification or supplementary explanation of the content.

[0097] The annotation function of the presentation module 10 allows teachers to directly reflect the important points or suggestions of the classroom discussion in the presentation content, and provide real-time feedback to the group terminal or personal terminal. During the presentation, all annotations and explanations can be synchronously saved to the system storage module for subsequent teaching review or classroom review. Students can obtain the presentation content by scanning the code or sharing the system for further review or supplementary learning.

[0098] (IX) Sharing Module

[0099] In one embodiment disclosed in the present invention, the system further includes a sharing module 11, which is configured to share the discussion results of the group terminal or the individual terminal with each group terminal according to the instruction of the main control terminal.

[0100] Group members transfer the files to be shared to the main control terminal through the group terminal, or students transfer the files to be shared through personal terminals. The teacher views the uploaded content in real time on the main control terminal, selects excellent or typical case materials, issues a "same screen" command, and distributes the content to all group terminals. The content after the same screen supports students to discuss, record and annotate on the group terminal. The teacher can make summary comments on the main control terminal and save or send modification opinions. The uploaded files, annotations and discussion results can be saved to the system, and students can download them by scanning the code for review or reference.

[0101] (X) Storage Module

[0102] In one embodiment disclosed in the present invention, the system further comprises a storage module 12 for storing the discussion data and sending the discussion data to the personal terminal according to a download instruction of the personal terminal.

[0103] The blackboard content, classroom discussion data, annotations of the main control terminal, whiteboard records of the group terminal, discussion results, learning content, etc. will be stored in the system in real time to ensure the complete retention of data. Teachers and students can scan the QR code or use other forms to quickly download the discussion content and results stored in the classroom to their personal devices.

[0104] like Figure 2 As shown, the cross-terminal group discussion system disclosed in the present invention has the following functions:

[0105] The teacher starts the teaching mode through the main control terminal, and the system enters the ready state, waiting for further operation instructions.

[0106] The teacher selects "Start group discussion system" on the display interface of the main control terminal. The system automatically identifies the equipment information in the classroom through the network, and each terminal device is ready and waiting for role assignment.

[0107] The system detects the role of each device and distinguishes between the main control terminal (teacher screen), group terminals (group screen) and personal terminals (student BYOD). The main control terminal is automatically assigned to "teacher mode" and the group terminal is assigned to "discussion group mode". The group number and screen interface configuration are generated according to the preset grouping logic.

[0108] A network soft connection is established between the main control terminal and each group terminal through the local area network. The connection is based on a low-coupling, cross-platform network protocol to ensure that the main control terminal can monitor and operate the content of the group terminal in real time.

[0109] The master terminal can initiate a variety of classroom activities, such as attendance, roll call, classroom Q&A and discussion. The system sends instructions to the group terminals through the master terminal, and the group terminals watch the teacher's teaching screen. At the same time, personal terminals can also participate in teaching activities.

[0110] The main control terminal can initiate a remote conference and invite participants from other classrooms or campuses to join, realizing cross-screen interaction in different locations. The screen of the main control terminal can be shared in real time to the group terminal so that the whole class can conduct synchronous teaching.

[0111] Teachers can use the electronic whiteboard function on the master terminal to write on the blackboard or display teaching materials. The whiteboard content of the master terminal can be synchronized to the group terminal in real time, which is convenient for students to record and view. Each group terminal displays the current discussion topic and allows sharing of the group terminal screen. The master terminal can select a group screen for focus display, or share the content of a specific group to other group terminals, or compare group discussion desktops on the same screen to promote interaction between groups.

[0112] Students can project their learning results or homework to the main control terminal or group terminal through their personal terminals, and teachers and other students can view and give feedback in real time.

[0113] At the end of the class, the teaching resources on the main control terminal will be stored in the cloud. The system automatically generates a resource link with a QR code, which students can scan to download or continue to use in the next class. On the group screen, the blackboard scanning function is also supported.

[0114] When the teacher clicks the "End get out of class" button on the main control interface, the system will automatically disconnect all connections and end the operation of the group discussion system.

[0115] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A cross-terminal group discussion system, characterized in that: Applied to a group discussion platform including multiple terminals, the system includes: A role allocation module connected to all terminals for communication, configured to automatically identify the type of each terminal and allocate roles, including a master terminal, a group terminal and a personal terminal; A discussion module in communication with the role allocation module, configured to transmit discussion content and / or screen content to at least one group terminal and / or individual terminal in real time according to instructions sent by the main control terminal; The discussion module is also configured to transmit the discussion results to the main control terminal according to the instructions of the group terminal and / or the individual terminal.

2. The discussion system according to claim 1, characterized in that: The system also includes an encoding module, a transmission module and a decoding module, wherein: The encoding module is in communication with the discussion module and is configured to compress and encode the discussion data of all terminals, wherein the discussion data includes discussion content, screen content and discussion results; The transmission module is in communication with the encoding module and is configured to transmit the encoded discussion data between different terminals; The decoding module is in communication with the transmission module and is configured to decode the research data received by the terminal into original data.

3. The discussion system according to claim 1, characterized in that: All terminals are connected to each other via wireless network and / or wired network communication.

4. The discussion system according to claim 1, characterized in that: The system also includes a whiteboard module configured to record text, annotations and pictures input by the main control terminal and the group terminals during the discussion in the form of a whiteboard.

5. The discussion system according to claim 1, characterized in that: The system also includes an interactive module, which is configured to perform attendance, selection of candidates for answering, classroom discussion and resource sharing functions according to the instructions of the main control terminal.

6. The research system according to claim 1, characterized in that: The system also includes a remote module configured to send the discussion content and / or screen content of the main control terminal to the remote terminal in real time.

7. The discussion system according to claim 1, characterized in that: The system also includes an inter-group module configured to allocate independent storage space to each group terminal to record the discussion results within the group.

8. The discussion system according to claim 1, characterized in that: The system also includes a display module configured to display the discussion results sent by the group terminal and / or the individual terminal on the main control terminal.

9. The discussion system according to claim 1, characterized in that: The system also includes a sharing module configured to share the discussion results of the group terminal or the individual terminal to each group terminal according to the instruction of the main control terminal.

10. The discussion system according to claim 1, characterized in that: The system further comprises a storage module configured to store discussion content and discussion results, and to send the discussion content and / or discussion results to the personal terminal according to a download instruction of the personal terminal.

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