CN110611711A

CN110611711A - Teaching system, teaching system communication method and device and storage medium

Info

Publication number: CN110611711A
Application number: CN201910860985.8A
Authority: CN
Inventors: 曹桐军
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2019-12-24

Abstract

The embodiment of the invention discloses a teaching system, a teaching system communication method and device and a storage medium. The teaching system comprises a first terminal and a plurality of second terminals; the method comprises the steps that a first connection channel is established between a first terminal and a second terminal, and the first connection channel is used for transmitting a first control instruction and/or first screen projection data; the second terminal is used for establishing a second connecting channel with the student terminal, and the second connecting channel is used for transmitting a second control instruction and/or second screen projection data; when the second terminal is connected with the student terminal, the second terminal acquires the equipment identifier of the currently connected student terminal through a second connection channel; when the first terminal and the second terminal are in a connected state, the first terminal acquires the equipment identifier of the second terminal and the equipment identifier of the corresponding student terminal from the currently connected second terminal through the first connection channel. The teaching system which corresponds to grouping requirements and is integrally controlled is provided, grouping teaching is convenient to organize, and a good hardware environment for grouping teaching is provided.

Description

Teaching system, teaching system communication method and device and storage medium

Technical Field

The embodiment of the invention relates to the technical field of intelligent interactive panels, in particular to a teaching system, a teaching system communication method and device and a storage medium.

Background

Along with the development of intelligent technology, the types of electronic products contacted by people in daily life are increasingly rich, wherein the interactive electronic products realized based on the touch technology have a more comprehensive function integration trend due to good human-computer interaction experience. The intelligent interactive flat panel is representative integrated equipment, is suitable for group interaction occasions such as conferences, teaching, commercial exhibition and the like, integrates multiple functions such as a projector and video conferences, can effectively improve the communication environment, presents multi-mode content and improves the group communication efficiency.

In group communication, teaching has various communication characteristics and communication requirements according to different classroom organization modes, and in the current intelligent interactive flat plate, a wireless screen transmission scheme is that one or more sending ends and one receiving end carry out screen transmission interaction, so that the wireless screen transmission scheme is mainly suitable for centralized teaching type classroom teaching activities and cannot adapt to the interaction requirements under complex teaching scenes.

Disclosure of Invention

The invention provides a teaching system, a teaching system communication method and device and a storage medium, which are used for solving the technical problem that the prior art cannot adapt to the interaction requirement under a complex teaching scene.

In a first aspect, an embodiment of the present invention provides a teaching system, including a first terminal and a plurality of second terminals;

the first terminal and the second terminal establish a first connecting channel, and the first connecting channel is used for transmitting a first control instruction and/or first screen projection data;

the second terminal is used for establishing a second connection channel with the student terminal, and the second connection channel is used for transmitting a second control instruction and/or second screen projection data;

when the second terminal is connected with the student terminal, the second terminal acquires the equipment identifier of the currently connected student terminal through the second connection channel;

when the first terminal and the second terminal are in a connected state, the first terminal acquires the equipment identifier of the second terminal and the equipment identifier of the corresponding student terminal from the currently connected second terminal through the first connecting channel.

And the equipment identification of the student terminal is a personal account of the student user.

And the student terminal establishes a second connection channel through the communication connection information displayed by the second terminal.

In a second aspect, an embodiment of the present invention further provides a teaching system communication method, including:

establishing a second connection channel between a second terminal and the student terminal, and transmitting the equipment identification of the currently connected student terminal to the second terminal through the second connection channel;

establishing a first connecting channel between a first terminal and a second terminal, and transmitting the equipment identification of the second terminal which is connected currently and the equipment identification of the corresponding student terminal to the first terminal through the first connecting channel;

transmitting a first screen projection instruction generated by the first terminal to a specified second terminal through the first connecting channel, and transmitting first screen projection data generated by the specified second terminal to the first terminal through the first connecting channel;

transmitting a second screen projection instruction generated by the second terminal to a designated student terminal through the second connecting channel, and transmitting second screen projection data generated by the designated student terminal to a corresponding second terminal through the second connecting channel;

when receiving a task of screen projection of a target student terminal to the first terminal, establishing a third connecting channel between the first terminal and the target student terminal, and transmitting third screen projection data generated by the target student to the first terminal through the third connecting channel.

The first connecting channel comprises a first instruction channel and a first screen projecting channel, and the second connecting channel comprises a second instruction channel and a second screen projecting channel;

the transmitting a first screen projection instruction generated by the first terminal to a designated second terminal through the first connection channel, and transmitting first screen projection data generated by the designated second terminal to the first terminal through the first connection channel includes:

transmitting a first screen projection instruction generated by the first terminal to a specified second terminal through the first instruction channel;

the appointed second terminal and the first terminal establish a first screen projection channel according to the first screen projection instruction;

transmitting first screen projection data generated by the appointed second terminal to the first terminal through the first screen projection channel;

the transmitting a second screen projection instruction generated by the second terminal to the designated student terminal through the second connection channel, and transmitting second screen projection data generated by the designated student terminal to the corresponding second terminal through the second connection channel, includes:

transmitting a second screen projection instruction generated by the second terminal to a designated student terminal through the second instruction channel;

the appointed student terminal and the second terminal establish a second screen projection channel according to the second screen projection instruction;

and transmitting the first screen projection data generated by the appointed student terminal to a corresponding second terminal through the second screen projection channel.

When receiving a task of screen projection of a target student terminal to the first terminal, establishing a third connection channel between the first terminal and the target student terminal, and transmitting third screen projection data generated by the target student to the first terminal through the third connection channel, including:

receiving a third screen projection instruction at the first terminal, wherein the third screen projection instruction designates a target student terminal;

transmitting the third screen projection instruction from the first terminal to a second terminal corresponding to the target student terminal through the first instruction channel;

transmitting the third screen projection instruction from a second terminal corresponding to the target student terminal through the second instruction channel;

the target student terminal and the first terminal establish a third connection channel according to the third screen projection instruction;

and transmitting third screen projection data generated by the target student terminal to the first terminal through the third connecting channel.

Wherein, before the first terminal receives a third screen projection instruction, the method further comprises:

displaying an identification array in the first terminal, wherein the identification array displays the equipment identification of the second terminal connected currently and the equipment identification of the corresponding student terminal;

receiving a third screen projection instruction at the first terminal, specifically:

and receiving a selection instruction of the equipment identification of the student terminal in the identification array, confirming a target student terminal according to the selection instruction, and generating a third screen projection instruction based on the target student terminal.

Wherein, the method further comprises:

and after the screen projection is finished, disconnecting the corresponding screen projection connection.

In a third aspect, an embodiment of the present invention further provides a teaching system communication apparatus, including:

the second connection unit is used for establishing a second connection channel between a second terminal and the student terminal and transmitting the equipment identification of the currently connected student terminal to the second terminal through the second connection channel;

the first connection unit is used for establishing a first connection channel between a first terminal and the second terminal and transmitting the equipment identification of the second terminal which is connected currently and the equipment identification of the corresponding student terminal to the first terminal through the first connection channel;

the first transmission unit is used for transmitting a first screen projection instruction generated by the first terminal to the appointed second terminal through the first connecting channel and transmitting first screen projection data generated by the appointed second terminal to the first terminal through the first connecting channel when receiving a task of projecting a screen to the first terminal by the appointed second terminal;

the second transmission unit is used for transmitting a second screen projection instruction generated by the second terminal to the appointed student terminal through the second connection channel and transmitting second screen projection data generated by the appointed student terminal to the corresponding second terminal through the second connection channel when receiving a task of projecting a screen to the second terminal by the appointed student terminal;

and the third transmission unit is used for establishing a third connection channel between the first terminal and the target student terminal when receiving a task of screen projection of the target student terminal to the first terminal, and transmitting third screen projection data generated by the target student to the first terminal through the third connection channel.

the first transmission unit includes:

the first connection instruction transmission module is used for transmitting a first screen projection instruction generated by the first terminal to a specified second terminal through the first instruction channel;

the first screen projection channel establishing module is used for establishing a first screen projection channel by the appointed second terminal and the first terminal according to the first screen projection instruction;

the first screen projection data transmission module is used for transmitting first screen projection data generated by the appointed second terminal to the first terminal through the first screen projection channel;

the second transmission unit includes:

the second connection instruction transmission module is used for transmitting a second screen projection instruction generated by the second terminal to a specified student terminal through the second instruction channel;

the second screen projection channel establishing module is used for establishing a second screen projection channel by the appointed student terminal and the second terminal according to the second screen projection instruction;

and the third screen projection data transmission module is used for transmitting the first screen projection data generated by the appointed student terminal to the corresponding second terminal through the second screen projection channel.

Wherein the third transmission unit includes:

a third screen projection instruction generating module, configured to receive a third screen projection instruction at the first terminal, where the third screen projection instruction specifies a target student terminal;

the first connection instruction forwarding module is used for transmitting the third screen projection instruction from the first terminal to a second terminal corresponding to the target student terminal through the first instruction channel;

the second connection instruction forwarding module is used for transmitting the third screen projection instruction from a second terminal corresponding to the target student terminal through the second instruction channel;

a third connection channel establishing module, configured to establish a third connection channel between the target student terminal and the first terminal according to the third screen projection instruction;

and the third screen projection data transmission module is used for transmitting the third screen projection data generated by the target student terminal to the first terminal through the third connecting channel.

Wherein, the device still includes:

the identification display unit is used for displaying an identification array in the first terminal, and the identification array displays the equipment identification of the second terminal which is connected currently and the equipment identification of the corresponding student terminal;

the third screen projection instruction generating module is specifically configured to receive a selection instruction for an equipment identifier of a student terminal in the identifier array, confirm a target student terminal according to the selection instruction, and generate a third screen projection instruction based on the target student terminal.

Wherein, the device still includes:

and the screen projection connection and disconnection unit is used for disconnecting the corresponding screen projection connection after the screen projection is finished.

In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the teaching system communication method according to any one of the second aspects.

The teaching system comprises a first terminal and a plurality of second terminals; the first terminal and the second terminal establish a first connecting channel, and the first connecting channel is used for transmitting a first control instruction and/or first screen projection data; the second terminal is used for establishing a second connection channel with the student terminal, and the second connection channel is used for transmitting a second control instruction and/or second screen projection data; when the second terminal is connected with the student terminal, the second terminal acquires the equipment identifier of the currently connected student terminal through the second connection channel; when the first terminal and the second terminal are in a connected state, the first terminal acquires the equipment identifier of the second terminal and the equipment identifier of the corresponding student terminal from the currently connected second terminal through the first connecting channel. Under the application scene of grouping teaching, a teaching system corresponding to grouping requirements and integrally controlling is provided, the grouping teaching is convenient to organize, and a good hardware environment for the grouping teaching is provided.

Drawings

Fig. 1 is an application architecture diagram of a teaching system according to an embodiment of the present invention;

fig. 2 is a schematic layout diagram of a teaching system according to an embodiment of the present invention;

fig. 3 is a flowchart of a communication method of a teaching system according to a second embodiment of the present invention;

fig. 4-7 are schematic diagrams illustrating changes in communication connection of a teaching system according to a second embodiment of the present invention;

fig. 8 is a flowchart of a communication method of a teaching system according to a third embodiment of the present invention;

fig. 9-11 are schematic diagrams illustrating communication connection changes of a teaching system according to a third embodiment of the present invention;

fig. 12 is a schematic structural diagram of a communication device of a teaching system according to a fourth embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal device according to a fifth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are for purposes of illustration and not limitation. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Example one

Fig. 1 is an application architecture diagram of a teaching system according to an embodiment of the present invention. The first terminal and the second terminal described in this embodiment are presented by using an intelligent interactive tablet as an actual carrier. The intelligent interactive panel can be an integrated device which controls the content displayed on the display panel and realizes man-machine interaction operation through a touch technology, and integrates one or more functions of a projector, an electronic whiteboard, a curtain, a sound box, a television, a video conference terminal and the like.

Generally, a smart interactive tablet includes at least one display screen. For example, the smart interactive tablet is configured with a display screen with touch function, and the display screen may be a capacitive screen, a resistive screen, or an electromagnetic screen. Furthermore, the user can realize touch operation in a mode of touching the display screen by a finger or a touch pen, and correspondingly, the intelligent interaction panel detects the touch position and responds according to the touch position to realize the touch function. Typically, the smart interactive tablet is installed with at least one operating system, wherein the operating system includes, but is not limited to, an android system, a Linux system, and a Windows system. Further, the smart interactive tablet may install at least one application having a writing function. The application program may be an application program carried by an operating system, and an application program downloaded from a third-party device or a server is also installed. Optionally, the application program has other editing functions besides the writing function, such as inserting tables, inserting pictures, inserting graphics, drawing tables, drawing graphics, and the like. And the drawn table or graph is a standard element drawn by the computer. Computer drawn standard elements may be understood as print standard elements drawn by an intelligent interactive tablet, which are distinguished from elements written by a user. Based on the functions, the intelligent interactive tablet can be used for information display and interaction in the teaching process.

Aiming at a teaching scene, teaching of different learning sections has respective teaching characteristics, for example, a preschool education stage mainly adopts scene experience and feels the world; the obligation education stage mainly comprises knowledge teaching and world cognition; the higher education stage is mainly thinking collision, thinking the world. Under different teaching characteristics, the design of education mode and corresponding teaching equipment all has different thinking. In the embodiment, a teaching system is provided mainly for teaching characteristics in advanced education stages. In the following embodiments, the description is mainly performed based on the packet teaching as an application scenario, but the scenario is not the only application limitation, and the application of the scheme can also achieve a good implementation effect in other scenarios based on packet communication, such as conference packet discussion, product packet brainstorming, and the like.

As shown in fig. 1, the teaching system includes a first terminal 10 and a plurality of second terminals 20;

the first terminal 10 and the second terminal 20 perform data transmission through a first connection channel 12, where the first connection channel 12 is used to transmit a first control instruction and/or first screen projection data;

the second terminal 20 is used for data transmission with the student terminal 30 through a second connection channel 23, and the second connection channel 23 is used for transmitting a second control instruction and/or second screen projection data;

when the second terminal 20 and the student terminal 30 are in a connected state, the second terminal 20 obtains the device identifier of the currently connected student terminal 30 through the second connection channel 23;

when the first terminal 10 and the second terminal 20 are in a connected state, the first terminal 10 acquires the device identifier of the second terminal 20 and the device identifier of the corresponding student terminal 30 from the currently connected second terminal 20 through the first connection channel 12.

The first terminal 10 and the second terminal 20 in this embodiment are not limited to two kinds of smart interactive tablets from the product form, and the first terminal 10 and the second terminal 20 are only limited to the functional positioning thereof in the teaching system. From the practical product form, the first terminal 10 and the second terminal 20 may be intelligent interactive tablets of the same model, or may be different intelligent interactive tablets; the second terminal 20 and the second terminal 20 may be the same intelligent interactive tablet or different intelligent interactive tablets, and in the teaching system shown in fig. 1, the second terminals 20 all adopt the same product form. The layout of the teaching system in the classroom of the embodiment is as shown in fig. 2, the first terminal 10 is laid on the wall surface of the side where the platform is located in the classroom, the second terminal 20 is laid on the wall surface of at least one other side, one or more second terminals 20 can be laid on the wall surface of each side, and in the layout shown in fig. 2, one second terminal 20 is respectively arranged on the left side and the right side.

The teaching system provided in this embodiment is used in cooperation with the student terminal 30, and the specific product form of the student terminal 30 may be a learning tablet, a smart phone, a notebook computer, or the like. In the classroom activity with group teaching, teachers carry out overall control of classroom activity based on a first terminal 10, one second terminal 20 is allocated to each group, students in each group access respective student terminals 30 to the second terminals 20 corresponding to the group, and the responsible persons in each group carry out overall control of activity in the corresponding second terminals 20, and finally the application architecture of the teaching system shown in fig. 1 is formed.

In the application architecture shown in fig. 1, the first terminal 10 maintains a normal data connection only with the second terminal 20, and the second terminal 20 maintains a normal data connection only with the corresponding student terminal 30 to which it is currently connected. In the application scenario of the group discussion, through the access from bottom to top, each student terminal 30 only needs to operate once to quickly complete the grouping architecture of the student terminals 30 of the same group under the same second terminal 20. For the connection between the first terminal 10 and the second terminal 20, according to the pre-connection configuration, the fast connection can be realized after the first terminal 10 and the second terminal 20 are powered on.

In the application architecture shown in fig. 1, the screen projection requirements in different teaching links in the grouping teaching can be met. If the teacher needs to display the learning result of a certain group, the second terminal 20 corresponding to the group opens the relevant file for displaying the learning result, the teacher selects to screen the second terminal 20 at the first terminal 10, and the second terminal 20 sends the screen-casting data to the first terminal 10 for synchronous display, so that all students in the classroom can conveniently check the screen. In the specific learning process in the group, a certain student terminal 30 can be selected according to specific display requirements to send screen projection data to the second terminal 20, so that the students in the group discuss and collide with ideas about the screen projection contents of the students, and finally, a group learning result is formed.

For a specific selection mode of the source of the screen projection data, each second terminal 20 may obtain the device identifier of the currently connected student terminal 30 and establish association with itself, and each first terminal 10 may obtain the device identifier of the currently connected second terminal 20 and the device identifier of the corresponding student terminal 30. Based on the device identifiers stored in the first terminal 10 and the second terminal 20, when there is a screen-casting requirement, the device identifiers can be displayed, and a target device needing screen casting is selected from the device identifiers, and the target device is sent to the corresponding target device through the corresponding data connection, so that screen-casting data of the target device is obtained, and a screen-casting process is completed.

On a specific data connection, the first connection channel 12 may include a first instruction channel and a first screen projection channel, which are respectively used for transmitting a first control instruction and first screen projection data; the second connection channel 23 may include a second instruction channel and a second screen projection channel, which are respectively used for transmitting a second control instruction and second screen projection data.

In the actual data transmission process, the data transmission between the two terminals can be realized through one connecting channel, namely all data between the two terminals are realized through the same connecting channel in a fixed connection state; the data transmission between the two terminals can also be realized through different connection channels, the different connection channels transmit different types of data, for example, the data is divided into a control instruction and screen projection data, and correspondingly, two connection channels are established between the two terminals, one connection channel is used for transmitting the control instruction, and the other connection channel is used for transmitting the screen projection data. In the present scheme, a connection channel for transmitting the control command and the screen projection data between the first terminal 10 and the second terminal 20 is defined as a first command channel and a first screen projection channel, respectively, and a connection channel for transmitting the control command and the screen projection data between the second terminal 20 and the student terminal 30 is defined as a second command channel and a second screen projection channel, respectively. The magnitude difference exists in the transmission data volume of the control command and the screen projection data, corresponding data transmission is carried out through different connecting channels, and the data transmission efficiency can be effectively improved. The above definition is only to distinguish data transmission connections among different types of terminals, and does not represent that the connection modes are different, and actually, the same or different data connection modes may be used to establish a connection channel to complete data transmission.

In the specific implementation process, in each student terminal 30, through a pre-installed learning auxiliary application, a student logs in the student terminal 30 through a personal account, at this time, the personal account of the student user may be bound to the student terminal 30, and then the personal account of the student user is set as a temporary device identifier of the student terminal 30. When the student terminal 30 is connected with the second terminal 20, the temporary device identifier is sent to the second terminal 20 through the second connection channel 23, the personal account number of the student user is generally the content of the name, certificate photo and the like of the student, which can clearly represent the personal identity information of the user, when the terminal identifier of the student user is displayed on the second terminal 20 correspondingly, the information of the students grouped correspondingly can be more clearly obtained, and the student terminal 30 of the target can be more easily selected when screen projection is required.

The establishment of the data connection of the student terminal 30 with the second terminal 20 requires basic connection information, and specifically, the student terminal 30 establishes the second connection channel 23 through the communication connection information displayed by the second terminal 20. The communication connection information can be a two-dimensional code or a PIN code, if the communication connection information is the two-dimensional code, the communication connection information can be connected through code scanning after the personal account of the student logs in, and if the communication connection information is the PIN code, the student is required to input the PIN code into the student terminal 30 for connection.

In the selection of the specific connection mode, the data connection in the scheme refers to a data transmission mode of an upper intermediate software abstraction layer, instead of a physical signal mode for realizing data transmission, such as wired connection, WiFi connection, bluetooth connection and the like. Specifically, the first connection channel 12 is a socket connection; the second connection channel 23 is a socket connection. A socket can be viewed as an endpoint in the respective communication connection when two network applications are communicating. During communication, one network application program writes a piece of information to be transmitted into a socket of a host computer where the network application program is located, and the socket sends the piece of information to a socket of another host computer through a transmission medium of a network interface card, so that the piece of information can be transmitted to other programs.

In the above, the teaching system comprises a first terminal and a plurality of second terminals; the first terminal and the second terminal establish a first connecting channel, and the first connecting channel is used for transmitting a first control instruction and/or first screen projection data; the second terminal is used for establishing a second connection channel with the student terminal, and the second connection channel is used for transmitting a second control instruction and/or second screen projection data; when the second terminal is connected with the student terminal, the second terminal acquires the equipment identifier of the currently connected student terminal through the second connection channel; when the first terminal and the second terminal are in a connected state, the first terminal acquires the equipment identifier of the second terminal and the equipment identifier of the corresponding student terminal from the currently connected second terminal through the first connecting channel. Under the application scene of grouping teaching, a teaching system corresponding to grouping requirements and integrally controlling is provided, the grouping teaching is convenient to organize, and a good hardware environment for the grouping teaching is provided.

Example two

Fig. 3 is a flowchart of a communication method of a teaching system according to a second embodiment of the present invention. The teaching system communication method is applied to the teaching system in the first embodiment. Specifically, referring to fig. 3, the communication method of the teaching system specifically includes:

and step S110, establishing a second connection channel between the second terminal and the student terminal, and transmitting the equipment identification of the currently connected student terminal to the second terminal through the second connection channel.

When the first terminal and the second terminal are installed in a classroom and exist as a teaching system, that is, the related configuration of network connection is completed, generally, the first terminal and the second terminal are connected to the same router or switch, and may be specifically wired or wirelessly connected. Further, the first terminal and the second terminal are connected in the same local area network. Based on the same router and switch, wireless hotspots can be provided, and students access their respective student terminals to the wireless hotspots in packet teaching activities. Of course, the second terminal can also be used as a wireless hotspot, and each student terminal is accessed to the second terminal. When a second connection channel between a second terminal and a student terminal is established, the student terminal scans a two-dimensional code displayed on the second terminal to obtain communication connection information recorded in the two-dimensional code, the student terminal inputs communication connection information such as a PIN code or a WiFi password displayed on the second terminal, network connection of the student terminal corresponding to the second terminal is established first through the communication connection information, transmission recording of equipment identification is completed, and then data connection for transmitting a control instruction and screen projection data is established on the basis of the network connection.

Step S120, a first connection channel between the first terminal and the second terminal is established, and the device identification of the second terminal connected at present and the device identification of the corresponding student terminal are transmitted to the first terminal through the first connection channel.

The network connection state between the first terminal and the second terminal is basically fixed, the first connection channel is connected with the application layer on the basis of network connection, the first connection channel is established after the first terminal and the second terminal are started, the first connection channel is established between the first terminal and all the opened second terminals in a classroom, and the corresponding equipment identification is obtained.

It should be noted that step S110 and step S120 described in the present embodiment do not limit the execution order of specific steps, but describe the steps appearing in the implementation of the scheme in a whole. In the application architecture process for performing packet teaching in a classroom, for example, the application architecture process is, chronologically, it is possible that the establishment of the second connection channel between part of the student terminals and the second terminal is prior to the establishment of the first connection channel between the first terminal and the second terminal, in addition, the establishment of the second connection channel between the student terminals and the second terminal is partly preceded by the establishment of the first connection channel between the first terminal and the second terminal, during the communication process of the whole teaching system, there may be a plurality of times of executing step S110 and step S120, and the order of multiple executions is uncertain, but on the whole, the generation of new connection relation can generate corresponding step execution and equipment identification transmission, and finally, the second terminal obtains the equipment identifications of all the currently accessed student terminals, and the first terminal obtains the second terminal to be currently accessed and the equipment identifications of the corresponding student terminals.

Step S130, when receiving a task of screen projection to the first terminal by the appointed second terminal, transmitting a first screen projection instruction generated by the first terminal to the appointed second terminal through the first connecting channel, and transmitting first screen projection data generated by the appointed second terminal to the first terminal through the first connecting channel.

In the whole using process of the teaching system, a first terminal can perform screen projection display or display a device list of the first terminal which is accessed currently according to the using requirements of a user, when the screen projection requirement exists, the device list is displayed, a certain second terminal is selected from the device list, and the task of projecting a screen to the first terminal by the specified second terminal can be received at the first terminal. As shown in fig. 4, a certain second terminal 20 is selected in the first terminal 10, a first screen projection instruction is sent to the selected second terminal 20 through the first connection channel 12 (the instruction that the first terminal 10 instructs the second terminal 20 to project a screen is defined as the first screen projection instruction), after the second terminal 20 receives the first screen projection instruction, first screen projection data is sent to the first terminal through the first connection channel 12 (the data that the second terminal 20 projects a screen to the first terminal 10 is defined as the first screen projection data), and finally, as shown in fig. 5, the first terminal 10 displays the same screen as that in the second terminal 20, and generation and display of the screen projection data are mostly implemented in the prior art, and a repeated description is not given here.

And step S140, when receiving a task of screen projection to the second terminal by the appointed student terminal, transmitting a second screen projection instruction generated by the second terminal to the appointed student terminal through the second connecting channel, and transmitting second screen projection data generated by the appointed student terminal to the corresponding second terminal through the second connecting channel.

In the whole using process of the teaching system, the second terminal can perform screen projection display or display a device list of a currently accessed student terminal according to the using requirements of a user, when the screen projection requirement exists, the device list is displayed, a certain student terminal is selected from the device list, and the task of projecting a screen to the first terminal by a specified student terminal can be received at the second terminal. As shown in fig. 6, a certain student terminal 30 is selected from the second terminal 20, a second screen projection instruction is sent to the selected student terminal 30 through the second connection channel 23 (the instruction that the second terminal 20 instructs the student terminal 30 to project a screen is defined as the second screen projection instruction), after the student terminal 30 receives the second screen projection instruction, second screen projection data is sent to the second terminal 20 through the second connection channel 23 (the data that the student terminal 30 projects a screen to the second terminal 20 is defined as the second screen projection data), and finally, as shown in fig. 7, the second terminal 20 displays the same screen as that in the student terminal 30, and generation and display of the screen projection data are mostly realized in the prior art, and will not be described repeatedly herein.

Step S150: and when receiving a task of screen projection from the target student terminal to the first terminal, establishing a third connecting channel between the first terminal and the target student terminal, and transmitting third screen projection data generated by the target student to the first terminal through the third connecting channel.

The screen projection method is suitable for application scenes of group teaching, and only a few teaching links have screen projection requirements between the first terminal and the student terminals, so that a normal connection channel can be maintained between the first terminal and the student terminals, only when a specific student terminal (namely a target student terminal) needs to project a screen to the first terminal, a screen projection task is established according to a confirmation instruction of the target student terminal, a third connection channel existing corresponding to the specific screen projection is established, and screen projection data transmission from the target student terminal to the first terminal is completed through the third connection channel. After the specific screen-casting task is completed, the third connection channel established for the screen-casting task may be disconnected. The connection channel established based on the specific task can avoid the appearance of an idle connection channel, reduce the maintenance cost of the connection channel and improve the overall efficiency of data processing.

In the above communication process, after the connection between the terminals is established in steps S110 and S120, the teacher may perform various screen projection operations according to the prearranged and random events of the teaching activities, that is, after the basic connection channel between the terminals is established, different types of screen projection tasks are established at any time and screen projection is realized on the basis of the existing connection channel. That is, the steps S130, S140, and S150 are not strictly limited in the execution order and the execution number after the connection between the respective terminals is established. For example, in a certain group teaching activity, a unified arrangement is performed first, then a group discussion is performed, then a group report is performed, and finally an individual student display is performed, then in the group discussion, a plurality of student terminals may respectively project screens to a plurality of corresponding second terminals (there may be a case where different second terminals simultaneously perform the screen projection in step S140, or there may be a case where the same second terminal sequentially performs the screen projection in step S140), in the group report, a plurality of second terminals sequentially project screens to a first terminal (sequentially performs step S130), when the individual student display is performed, a plurality of student terminals sequentially project screens to the first terminal (sequentially performs step S150), even in the group discussion, step S150 may be performed according to an operation of a teacher.

In addition, in the teaching process, a second terminal and/or a student terminal may be accessed after the group discussion starts, so the implementation of step S110 and step S120 is not limited by the numbering sequence in this embodiment and the drawings, and the numbering sequence is only used to distinguish the steps themselves as an identifier, and is not used to limit the execution sequence.

Establishing a second connection channel between a second terminal and the student terminal, and transmitting the device identifier of the currently connected student terminal to the second terminal through the second connection channel; establishing a first connecting channel between a first terminal and a second terminal, and transmitting the equipment identification of the second terminal which is connected currently and the equipment identification of the corresponding student terminal to the first terminal through the first connecting channel; when cross-level screen projection tasks occur between the first terminal and the second terminal, between the second terminal and the student terminal and between the first terminal and the student terminal at will, corresponding screen projection data transmission is achieved through corresponding connecting channels. Under the application scene of grouping teaching, a teaching system corresponding to grouping demands and integrally controlling is provided, grouping teaching is convenient to organize, good interactive experience of the grouping teaching is provided, idle connection channel maintenance is reduced for the teaching system, and the utilization rate of the connection channel is improved.

EXAMPLE III

Fig. 8 is a flowchart of a communication method of a teaching system according to a third embodiment of the present invention. The present embodiment is embodied on the basis of the above-described embodiments.

Specifically, referring to fig. 8, the teaching system communication method provided in this embodiment specifically includes:

step S201: and establishing a second connection channel between the second terminal and the student terminal, and transmitting the equipment identifier of the currently connected student terminal to the second terminal through the second connection channel.

The second connection channel includes a second instruction channel and a second screen projection channel, where the second instruction channel is in a normal connection, the second screen projection channel is in an on-demand connection, the data connection established in step S201 is the second instruction channel, and the second instruction channel is mainly used to transmit a control instruction sent by the second terminal to the student terminal, for example, a screen projection instruction, a control instruction (for example, a page turning instruction of a teaching courseware) generated in the second terminal during the screen projection process and the like for displaying content on the student terminal.

Step S202: and establishing a first connecting channel between the first terminal and the second terminal, and transmitting the equipment identifier of the second terminal which is connected currently and the equipment identifier of the corresponding student terminal to the first terminal through the first connecting channel.

The first connection channel includes a first instruction channel and a first screen projection channel, where the first instruction channel is in a normal connection, the first screen projection channel is in an on-demand connection, the data connection established in step S202 is the first instruction channel, and the first instruction channel is mainly used to transmit a control instruction sent by the first terminal to the second terminal, for example, a screen projection instruction, a control instruction (for example, a page turning instruction of a teaching courseware) generated in the first terminal in the screen projection process for displaying content on the second terminal, and the like.

Step S203: and when receiving a task of screen projection to the first terminal by the appointed second terminal, transmitting a first screen projection instruction generated by the first terminal to the appointed second terminal through the first instruction channel.

As shown in fig. 4, when the first terminal 10 has a screen projection requirement, the designated second terminal 20 is selected in the first terminal 10, and a corresponding first screen projection instruction is generated and transmitted to the designated second terminal 20 through the first instruction channel 121.

Step S204: and the appointed second terminal and the first terminal establish a first screen projection channel according to the first screen projection instruction.

Step S205: and transmitting the first screen projection data generated by the appointed second terminal to the first terminal through the first screen projection channel.

As shown in fig. 5, the designated second terminal 20 and the first terminal 10 establish the first screen projection channel 122 according to the first screen projection instruction, and maintain the connection of the first instruction channel 121 while maintaining the first screen projection channel 122. The first screen projection data generated by the second terminal 20 is transmitted to the first terminal 10 through the first screen projection channel 122.

Step S206: and when receiving a task of screen projection to the second terminal by the appointed student terminal, transmitting a second screen projection instruction generated by the second terminal to the appointed student terminal through a second instruction channel.

As shown in fig. 6, when the second terminal 20 has a screen projection requirement, the designated student terminal 30 is selected at the second terminal 20, and a corresponding second screen projection instruction is generated and transmitted to the designated student terminal 30 through the second instruction channel 231.

Step S207: and the appointed student terminal and the second terminal establish a second screen projection channel according to the second screen projection instruction.

Step S208: and transmitting the first screen projection data generated by the appointed student terminal to the corresponding second terminal through a second screen projection channel.

As shown in fig. 7, the designated student terminal 30 and the second terminal 20 establish a second screen projection channel 232 according to the second screen projection instruction, and maintain the second screen projection channel 232 while still maintaining the connection of the second instruction channel 231. The second screen projection data generated by the student terminal 30 is transmitted to the second terminal 20 through the second screen projection channel 232.

Step S209: and receiving a third screen projection instruction at the first terminal, wherein the third screen projection instruction designates a target student terminal.

And displaying an identification array in the first terminal, wherein the identification array displays the equipment identification of the second terminal connected currently and the equipment identification of the corresponding student terminal.

The second terminal and the student terminal can be displayed hierarchically in the identification array of the first terminal, and the second terminal and the student terminal can also be displayed hierarchically

And the second terminal and the corresponding student terminals thereof are displayed in a segmented manner in sequence. The hierarchical display means that only the device identifiers of the second terminals or the student terminals are displayed in one array, and when the device identifier of one second terminal is clicked, the device identifier enters the identifier array of the student terminal corresponding to the second terminal, so that one student terminal can be selected. The sequential segmented display means that the device identification of one second terminal and the corresponding student terminal is taken as one segment in the array, if four second terminals are accessed currently, four segments are correspondingly displayed in the whole column, the second terminal can be selected in one identification array, and a certain student terminal corresponding to a certain second terminal can also be selected according to the segmented relation.

In the group teaching activity, it is very likely that a learning result of a certain student terminal is projected on the first terminal, as shown in fig. 9 and 10, a certain student terminal is selected as a target student terminal in the identifier array displayed in the hierarchical level, and a third screen projection instruction based on the target student terminal is generated.

Step S210: and transmitting the third screen projection instruction from the first terminal to a second terminal corresponding to the target student terminal through the first instruction channel.

Step S211: and transmitting a third screen projection instruction from a second terminal corresponding to the target student terminal through a second instruction channel.

Step S212: and the target student terminal and the first terminal establish a third connection channel according to the third screen projection instruction.

Step S213: and transmitting third screen projection data generated by the target student terminal to the first terminal through a third connecting channel.

As shown in fig. 11, there is no direct data connection between the first terminal 10 and the student terminal 30, when there is a screen projection requirement between the first terminal 10 and the target student terminal 30, the third screen projection instruction is transmitted to the student terminal 30 (the first terminal 10 → the second terminal 20 → the student terminal 30) sequentially through the first instruction channel 121 and the second instruction channel 231, after receiving the third screen projection instruction, the student terminal 30 establishes the third connection channel 13 through which the student terminal 30 directly transmits the screen projection data with the first terminal 10 according to the port information carried therein, and the student terminal 30 transmits the third screen projection data to the first terminal 10 through the third connection channel 13 to complete the screen projection process. In this embodiment, if the first connection channel and the second connection channel are used as a comparison, the third connection channel 13 does not actually need to establish a command channel, and only needs to establish a screen projection channel to complete a predetermined screen projection task.

Certainly, it is also a feasible screen projection mode to forward the third screen projection data to the first terminal through the second terminal corresponding to the target student terminal.

In the screen projecting process, after the screen projecting is finished, the corresponding screen projecting connection is disconnected, for example, after the screen projecting from the second terminal to the first terminal is finished, the first screen projecting channel is disconnected; after the screen projection of the student terminal to the second terminal is finished, the second screen projection channel is disconnected; and after the screen projection of the student terminal to the first terminal is finished, the third connecting channel is disconnected. The process of establishing the screen projection connection and disconnecting the screen projection connection according to the requirements can simplify the maintenance of data connection in the teaching system designed for the grouping teaching and improve the efficiency of data transmission.

Example four

Fig. 12 is a schematic structural diagram of a communication device of a teaching system according to a fourth embodiment of the present invention. Referring to fig. 12, the teaching system communication apparatus includes: a second connection unit 410, a first connection unit 420, a first transmission unit 430, a second transmission unit 440, and a third transmission unit 450.

The second connection unit 410 is configured to establish a second connection channel between a second terminal and a student terminal, and transmit the device identifier of the currently connected student terminal to the second terminal through the second connection channel; a first connection unit 420, configured to establish a first connection channel between a first terminal and the second terminal, and transmit a device identifier of the second terminal currently connected and a device identifier of a corresponding student terminal to the first terminal through the first connection channel; a first transmission unit 430, configured to transmit a first screen projection instruction generated by a first terminal to the designated second terminal through the first connection channel when receiving a task of projecting a screen to the first terminal by the designated second terminal, and transmit first screen projection data generated by the designated second terminal to the first terminal through the first connection channel; a second transmission unit 440, configured to transmit a second screen-casting instruction generated by a second terminal to the specified student terminal through the second connection channel when receiving a task of screen casting from the specified student terminal to the second terminal, and transmit second screen-casting data generated by the specified student terminal to the corresponding second terminal through the second connection channel; a third transmission unit 450, configured to establish a third connection channel between the first terminal and the target student terminal when receiving a task of a target student terminal projecting a screen to the first terminal, and transmit third screen projection data generated by the target student to the first terminal through the third connection channel.

On the basis of the above embodiment, the first connection channel includes a first instruction channel and a first screen projection channel, and the second connection channel includes a second instruction channel and a second screen projection channel;

the first transmission unit 430 includes:

the second transmission unit 440 includes:

On the basis of the above embodiment, the third transmission unit 450 includes:

On the basis of the above embodiment, the apparatus further includes:

The teaching system communication device provided by the embodiment of the invention is included in teaching system communication equipment, can be used for executing the teaching system communication method provided by any embodiment, and has corresponding functions and beneficial effects.

EXAMPLE five

Fig. 13 is a schematic structural diagram of a terminal device according to a fourth embodiment of the present invention, where the terminal device is a specific hardware presentation scheme of the communication device of the teaching system. As shown in fig. 13, the terminal device includes a processor 510, a memory 520, an input means 530, an output means 540, and a communication means 550; the number of the processors 510 in the terminal device may be one or more, and one processor 510 is taken as an example in fig. 13; the processor 510, the memory 520, the input device 530, the output device 540 and the communication device 550 in the terminal equipment may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 13.

The memory 520 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the communication method of the teaching system in the embodiment of the present invention (for example, the second connection unit 410, the first connection unit 420, the first transmission unit 430, the second transmission unit 440, and the third transmission unit 450 in the communication apparatus of the teaching system). The processor 510 executes various functional applications of the terminal device and data processing by executing software programs, instructions, and modules stored in the memory 520, thereby implementing the teaching system communication method described above.

The memory 520 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 520 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 520 may further include memory located remotely from processor 510, which may be connected to a terminal device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input means 530 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. The output device 540 may include a display device such as a display screen. The communication means 550 is used for data communication with the image capturing module.

The terminal equipment comprises a teaching system communication device, can be used for executing any teaching system communication method, and has corresponding functions and beneficial effects.

EXAMPLE six

Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the teaching system communication method described in the foregoing embodiments.

Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also execute the operations related to the communication method of the teaching system provided by any embodiment of the present invention.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

It should be noted that, in the embodiment of the teaching system communication device, the included units and modules are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A tutorial system comprising a first terminal and a plurality of second terminals;

the first terminal and the second terminal carry out data transmission through a first connecting channel, and the first connecting channel is used for transmitting a first control instruction and/or first screen projection data;

the second terminal is used for carrying out data transmission with the student terminal through a second connecting channel, and the second connecting channel is used for transmitting a second control instruction and/or second screen projection data;

2. An instructional system as claimed in claim 1 wherein the device identification of the student terminal is a personal account number of the student user.

3. Teaching system according to claim 1, wherein the student terminal establishes a second connection channel by means of the communication connection information displayed by the second terminal.

4. A communication method for a teaching system, comprising:

when receiving a task of a designated second terminal for projecting a screen to the first terminal, transmitting a first screen projecting instruction generated by the first terminal to the designated second terminal through the first connecting channel, and transmitting first screen projecting data generated by the designated second terminal to the first terminal through the first connecting channel;

when receiving a task of screen casting to the second terminal by a designated student terminal, transmitting a second screen casting instruction generated by the second terminal to the designated student terminal through the second connecting channel, and transmitting second screen casting data generated by the designated student terminal to the corresponding second terminal through the second connecting channel;

5. The method of claim 4, wherein the first connection channel comprises a first instruction channel and a first screen projection channel, and the second connection channel comprises a second instruction channel and a second screen projection channel;

6. The method of claim 5, wherein the step of establishing a third connection channel between the first terminal and the target student terminal when receiving a task of screen projection of the target student terminal to the first terminal, and transmitting third screen projection data generated by the target student to the first terminal through the third connection channel comprises the steps of:

7. The method of claim 6, wherein before the first terminal receives the third screen-projection instruction, the method further comprises:

8. The method according to any one of claims 4-7, further comprising:

9. An instructional system communication device, comprising:

10. The apparatus of claim 9, wherein the first connection channel comprises a first instruction channel and a first screen projection channel, and the second connection channel comprises a second instruction channel and a second screen projection channel;

the first transmission unit includes:

the second transmission unit includes:

11. The apparatus of claim 10, wherein the third transmission unit comprises:

12. The apparatus of claim 12, further comprising:

13. The apparatus of any of claims 9-12, further comprising:

14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the teaching system communication method according to any one of claims 4 to 8.