CN106781762B

CN106781762B - Method, device and system for displaying problem information

Info

Publication number: CN106781762B
Application number: CN201510823191.6A
Authority: CN
Inventors: 黄传娜; 耿峰
Original assignee: Huawei Digital Technologies Suzhou Co Ltd
Current assignee: Huawei Digital Technologies Suzhou Co Ltd
Priority date: 2015-11-24
Filing date: 2015-11-24
Publication date: 2020-04-28
Anticipated expiration: 2035-11-24
Also published as: CN106781762A

Abstract

The invention discloses a method, a device and a system for displaying problem information, and belongs to the technical field of computers. The method comprises the following steps: receiving a question request sent by a listening and speaking video conference terminal, wherein the question request carries question information and input starting time of the question information; acquiring page starting time corresponding to each teaching page sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs; determining a teaching page corresponding to the question information according to the input starting time of the question information and the page starting time corresponding to each teaching page; and sending a question message to the master video conference terminal, wherein the question message carries the question information and the page identification of the teaching page corresponding to the question information. By adopting the invention, the real-time teaching effect and the question answering efficiency can be improved.

Description

Method, device and system for displaying problem information

Technical Field

The invention relates to the technical field of computers, in particular to a method, a device and a system for displaying problem information.

Background

With the development of computer technology, video conferences are more and more widely applied and become one of the common conference modes for people. With the continuous improvement of the video conference system, people can also carry out remote teaching through the video conference system. When carrying out long-range teaching, the mr can explain on the video conference terminal of talkbacking to give the video conference terminal of listening to in real time with the teaching data real-time transmission of lecture through the internet, the student then can listen to the lecture through the video conference terminal of listening to.

In the process of remote teaching, when a student has a problem with the lecture content, the student can listen to the instant messaging application program of the video conference terminal and send the question to the main video conference terminal, and a teacher can check the received question through the instant messaging application program of the main video conference terminal and answer the question provided by the student.

In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:

the questions asked by the students are displayed according to the receiving sequence of the main speaking video conference terminal and are not related to the lack of the lecture content, and especially when fewer questions are asked, the questions seen by the teacher may be questions asked by the students while listening to the previous lecture content, so that the teacher needs to determine which part of the questions are asked for first and then answer, and the efficiency of answering the questions is low.

Disclosure of Invention

In order to solve the problems in the prior art, embodiments of the present invention provide a method, an apparatus, and a system for displaying problem information. The technical scheme is as follows:

in a first aspect, a method for displaying question information is provided, the method comprising:

receiving a question request sent by a listening and speaking video conference terminal, wherein the question request carries question information and input starting time of the question information;

acquiring page starting time corresponding to each teaching page sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs;

determining a teaching page corresponding to the question information according to the input starting time of the question information and the page starting time corresponding to each teaching page;

and sending a question message to the master video conference terminal, wherein the question message carries the question information and the page identification of the teaching page corresponding to the question information.

Students may send a request for questions to a listening and speaking video conference terminal through terminals, which may include, but are not limited to, mobile terminals such as mobile phones or tablet computers, and PC (personal computer) terminals. After receiving the lecture listening request, the listening and speaking video conference terminal can record the time of receiving the question request (namely the starting input time of the question information) and inform the mobile terminal of displaying the input interface of the question, students can input the question information in the input interface of the question and click the sending option, and the mobile terminal can send the question information to the listening and speaking video conference terminal. After receiving the question information, the listening and speaking video conference terminal can add the question information and the input starting time of the question information into the question request and send the question request to the MCU. After receiving the question request sent by the listening and speaking video conference terminal, the MCU can acquire the page start time corresponding to each teaching page sent by the main speaking video conference terminal of the network classroom to which the listening and speaking video conference terminal belongs, then can query the time slice corresponding to the start input time of the question information according to the corresponding relation table of the teaching pages and the page start time, and determine the teaching page corresponding to the question information. The server may send a quiz message to the talkback video conference terminal. The question message may carry question information and a page identifier of a teaching page corresponding to the question.

With reference to the first possible implementation manner of the first aspect, in a first possible implementation manner of the first aspect, the method further includes:

acquiring a keyword in the question information;

the sending of a question message to the video conference call terminal, where the question message carries the question information and a page identifier of a teaching page corresponding to the question information, includes:

and sending a question message to the talkback video conference terminal, wherein the question message carries the question information, the keywords of the question information and the page identification of the teaching page corresponding to the question information.

The MCU can extract keywords in the question information through a pre-stored keyword algorithm, and then sends a question message to the main speaking video conference terminal, wherein the question message carries the question information, the keywords of the question information and page identification of a teaching page corresponding to the question information, so that the question information can be classified, and the efficiency of reading the question information by a teacher is improved.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the method further includes:

receiving a reply message sent by the talkback video conference terminal, wherein the reply message carries a target keyword category and a page identifier of a teaching page;

and determining corresponding question information according to the pre-stored corresponding relation among the page identification, the keyword category and the question information and the target keyword category and the page identification in the reply message, and marking the determined question information as a replied question.

The teacher can reply to all questions contained in a certain keyword category, the talkback video conference terminal can send a reply message to the server, the reply message carries a target keyword category and a page identifier of the teaching page, the server searches question information corresponding to the target keyword category and the page identifier in the reply message according to a pre-stored corresponding relationship among the page identifier, the keyword category and the question information, and marks the searched question information as the replied question information. Thus, the teacher can quickly recognize the answered question information and the unanswered question information, and the efficiency of the answer can be improved.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the sending a question message to the main video conference terminal includes:

and if the starting input time of the question information is later than the page starting time corresponding to the currently displayed teaching page, sending a question message to the talkback video conference terminal.

The MCU can compare the input starting time of the question information with the page starting time corresponding to the currently displayed teaching page, and can send a question message to the master video conference terminal if the input starting time of the question information is later than the page starting time corresponding to the currently displayed teaching page. In this way, the amount of data transmitted can be reduced.

In a second aspect, a method of displaying issue information is provided, the method comprising:

receiving a question message sent by a server, wherein the question message carries question information and a page identifier of a teaching page corresponding to the question information;

and if the teaching page corresponding to the page identification and the currently displayed teaching page meet the preset page number proximity condition, displaying the question information.

The video conference terminal that talkbacks can receive the quiz message that the server sent, acquires the question information that carries in the quiz message to and the page sign of the teaching page that the question information corresponds, and the video conference terminal that talkbacks can also confirm the teaching page that the page sign in the quiz message corresponds, and then judges whether this teaching page and the teaching page's that shows at present page number proximity satisfies preset number of pages proximity condition, if satisfy, can show this question information. Therefore, the lecture can only display the question information related to the current page, and the effectiveness of displaying the question information is improved.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the receiving a question message sent by a server, where the question message carries question information, and a page identifier of a teaching page corresponding to the question information includes:

receiving a question message sent by a server, wherein the question message carries question information, a keyword of the question information and a page identifier of a teaching page corresponding to the question information;

if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset page number proximity condition, displaying the question information, including:

and if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset page number proximity condition, displaying the question information in a display area corresponding to the keyword category to which the keyword belongs.

The video conference terminal of the leading speech can receive the question information sent by the server, classify the question information according to the keyword carried in the question information, if the video conference terminal of the leading speech judges that the teaching page corresponding to the page identification in the question information and the teaching page displayed at present meet the preset condition of page number proximity, based on the keyword category, classify and display the question information. Therefore, the teacher can quickly acquire the basic content of the question information through the keyword category, and the response efficiency can be improved.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the method further includes:

and when a reply instruction corresponding to the target keyword category is received, sending a reply message to the server, wherein the reply message carries the target keyword category and the page identifier of the currently displayed teaching page.

The video conference call terminal may receive a reply instruction corresponding to the target keyword category, may then mark all questions included in the target keyword category as replied, and may send a reply message to the server, so that the server may mark corresponding question information as replied. Thus, the teacher can quickly recognize the answered question information and the unanswered question information, and the efficiency of the answer can be improved.

With reference to the second aspect, in a third possible implementation manner of the second aspect, if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset page proximity condition, displaying the question information includes:

and if the teaching page corresponding to the page identification is the same as the currently displayed teaching page, displaying the question information.

The video conference terminal that talkbacks can only show the problem information that the teaching page that shows at present corresponds, like this, can improve the validity of the problem information who shows.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset condition of page number proximity, displaying the question information includes:

and if the teaching page corresponding to the page identification and the currently displayed teaching page meet the preset page number proximity condition, displaying the question information and the page identification of the teaching page corresponding to the question information.

Therefore, for the question information corresponding to the teaching page which is not displayed currently, the teacher can quickly acquire the teaching page corresponding to the question information and then reply, and therefore the reply efficiency can be improved.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the displaying the question information includes:

the question information is superposed on the currently displayed teaching page for displaying; alternatively, the first and second electrodes may be,

and displaying the question information in a preset blank area.

The video conference terminal can display the problem information by overlapping the problem information on the currently displayed teaching page; alternatively, the question information may be displayed in a preset blank area, for example, in the form of a double screen. Thus, the aesthetic appearance of the display screen can be improved.

In a third aspect, a server is provided, the server comprising a transceiver, a processor, and a memory; wherein the content of the first and second substances,

the transceiver is used for receiving a question request sent by a listening and speaking video conference terminal, wherein the question request carries question information and the starting input time of the question information;

the processor is used for acquiring the page start time which is stored in the memory and corresponds to each teaching page sent by the main speaking video conference terminal of the network classroom to which the listening and speaking video conference terminal belongs;

the processor is further configured to determine a teaching page corresponding to the question information according to the input starting time of the question information and the page starting time corresponding to each teaching page;

the transceiver is further configured to send a question message to the talkback video conference terminal, where the question message carries the question information and a page identifier of a teaching page corresponding to the question information.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the processor is further configured to:

acquiring a keyword in the question information;

the transceiver is further configured to:

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the transceiver is further configured to:

the processor is further configured to determine corresponding question information according to the page identifier, the correspondence between the keyword category and the question information, which are pre-stored in the memory, and the target keyword category and the page identifier in the reply message, and mark the determined question information as a answered question.

With reference to the third aspect, in a third possible implementation manner of the third aspect, the transceiver is further configured to:

In a fourth aspect, a intercom video conferencing terminal is provided, the intercom video conferencing terminal comprising a receiver, a transmitter and a processor; wherein the content of the first and second substances,

the transceiver is used for receiving a question message sent by a server, wherein the question message carries question information and a page identifier of a teaching page corresponding to the question information;

and the processor is used for displaying the question information if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page number proximity condition stored in the memory.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the transceiver is further configured to:

the processor is further configured to:

and if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page number proximity condition stored in the memory, displaying the question information in a display area corresponding to the keyword category to which the keyword belongs.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the transceiver is further configured to:

With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the processor is further configured to:

With reference to the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the processor is further configured to:

and if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page number proximity condition stored in the memory, displaying the question information and the page identifier of the teaching page corresponding to the question information.

With reference to the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the processor is configured to:

and displaying the question information in a preset blank area.

In a fifth aspect, a server is provided, which includes:

the first receiving module is used for receiving a question request sent by a listening and speaking video conference terminal, wherein the question request carries question information and input starting time of the question information;

the first acquisition module is used for acquiring the page starting time corresponding to each teaching page sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs;

the determining module is used for determining the teaching page corresponding to the question information according to the starting input time of the question information and the page starting time corresponding to each teaching page;

and the sending module is used for sending a question message to the master talkback video conference terminal, wherein the question message carries the question information and the page identifier of the teaching page corresponding to the question information.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the server further includes:

the second acquisition module is used for acquiring the keywords in the question information;

the sending module is configured to:

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the server further includes:

the second receiving module is used for receiving a reply message sent by the talkback video conference terminal, wherein the reply message carries the category of the target keyword and the page identifier of the teaching page;

and the marking module is used for determining corresponding question information according to the pre-stored corresponding relation among the page identification, the keyword category and the question information and the target keyword category and the page identification in the reply message, and marking the determined question information as a replied question.

With reference to the fifth aspect, in a third possible implementation manner of the fifth aspect, the sending module is configured to:

In a sixth aspect, there is provided a intercom video conference terminal comprising:

the system comprises a receiving module, a query processing module and a query processing module, wherein the receiving module is used for receiving a question message sent by a server, and the question message carries question information and a page identifier of a teaching page corresponding to the question information;

and the display module is used for displaying the question information if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset page number proximity condition.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the receiving module is configured to:

a display module to:

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the master video conference terminal further includes:

and the sending module is used for sending a reply message to the server when a reply instruction corresponding to the target keyword category is received, wherein the reply message carries the target keyword category and the page identifier of the currently displayed teaching page.

With reference to the sixth aspect, in a third possible implementation manner of the sixth aspect, the display module is configured to:

With reference to the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the display module is configured to:

With reference to the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the display module is configured to:

and displaying the question information in a preset blank area.

In a seventh aspect, a system for displaying problem information is provided, the system comprising a server and a talkback video conference terminal; wherein the content of the first and second substances,

the server is used for receiving a question request sent by a listening and speaking video conference terminal, wherein the question request carries question information and starting input time of the question information, acquiring page starting time corresponding to each teaching page sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs, determining the teaching page corresponding to the question information according to the starting input time of the question information and the page starting time corresponding to each teaching page, and sending a question message to the main speaking video conference terminal, wherein the question message carries the question information and a page identifier of the teaching page corresponding to the question information;

and the talkback video conference terminal is used for receiving the question message sent by the server, and displaying the question information if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page number proximity condition.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, a question request sent by a listening and speaking video conference terminal is received, the question request carries question information and the starting input time of the question information, the page starting time corresponding to each teaching page sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs is obtained, the teaching page corresponding to the question information is determined according to the starting input time of the question information and the page starting time corresponding to each teaching page, the question message is sent to the main speaking video conference terminal, the question information carries the question information and the page identifier of the teaching page corresponding to the question information, therefore, based on the processing, the main speaking video conference terminal can identify the question information corresponding to the currently displayed teaching page and display the question information without needing a teacher to determine which part of the displayed question is presented in advance, and then the answer is carried out, so that the efficiency of answering the question can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a system framework diagram provided by an embodiment of the invention;

fig. 2 is a schematic structural diagram of a server according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a main video conference terminal according to an embodiment of the present invention;

FIG. 4 is a flowchart of a method for displaying problem information according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an interface display provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of an interface display provided by an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a server according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a server according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a server according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a main video conference terminal according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a main video conference terminal according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiment of the invention provides a method for displaying problem information, which can be jointly executed by a main speaking video conference terminal, a listening and speaking video conference terminal and a server. The server may be one server or a server group including a plurality of servers. In this embodiment, a server group formed by a plurality of servers is taken as an example for description, and the case where the server is one server is similar to this case, and details are not described again. The server farm may include a MCU (multipoint control unit), and a recording and broadcasting server. Fig. 1 is a system framework diagram of an embodiment of the present invention, which includes a main talk video conference terminal, a listen and talk video conference terminal, an MCU, and a recording and playing server.

In the remote teaching process, the MCU can be connected to the video conference terminal for main speech and a plurality of video conference terminals for listening to speech in the class network, and the teacher can import and play the teaching material for lectures on the computer, such as PPT (PowerPoint, slide), or can shoot manuscripts for teaching through devices such as cameras, and the computer can obtain teaching data, and the teaching material can include a plurality of teaching pages. The computer can be connected to the talkback video conference terminal through the video interface, and the teaching data is sent to the talkback video conference terminal, and the talkback video conference terminal can display the teaching data. In addition, the talkback video conference terminal can be connected with a camera component and used for shooting videos of teachers.

The main speaking video conference terminal can send the acquired teaching data and the video data of the teacher to the MCU, the MCU can send the received teaching data and the video data of the teacher to the listening and speaking video conference terminal in the network classroom, and the listening and speaking video conference terminal can display the received teaching data and the video data of the teacher. In addition, the listening and speaking video conference terminal can also be connected with the camera device, shoots videos of students and sends video data of the students to the MCU, the MCU can send the video data of the students to the talkback video conference terminal, and the talkback video conference terminal can display the received video data of the students so that teachers can know the listening states of the students.

In addition, the MCU can send the received teaching data, the video data of the teacher, and the video data of the student to the recording and broadcasting server in real time, and the recording and broadcasting server can receive the video data. The video data transmission can be carried out among the main talking video conference terminal, the listening and talking video conference terminal, the MCU and the recording and broadcasting server by adopting an SIP/H323 protocol.

The server side may include a transceiver 210, a processor 220 and a memory 230, and the transceiver 210 and the memory 230 may be respectively connected with the processor 220, as shown in fig. 2. The transceiver 210 may be used to transceive messages or data, and the transceiver 210 may include, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a coupler, an LNA (Low noise amplifier), a duplexer, and the like. The processor 220 may be a control center of the server, connect various parts of the entire server using various interfaces and lines, perform various functions of the server and process data by running or executing software programs and/or modules stored in the memory 230 and calling data stored in the memory 230, thereby performing overall monitoring of the server. Processor 220 may include one or more processing units; the processor 220 may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, etc. Memory 230 may be used to store programs. In particular, the program may include program code including computer operating instructions. Memory 230 may comprise RAM and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. Processor 220 executes program code stored in memory 230 to perform various functions.

The master video conference terminal may include a transceiver 310, a processor 320, and a memory 330, and the transceiver 310 and the memory 330 may be respectively connected to the processor 320, as shown in fig. 3. The transceiver 310 may be used for transceiving messages or data, and the transceiver 310 may include, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a coupler, an LNA (Low Noise Amplifier), a duplexer, and the like. The transceiver 310 may convert the received analog signals into digital signals and transmit the digital signals to the processor 320, so that the processor 320 may process the received data. The processor 320 may be a control center of the main video conference terminal, and may connect various parts of the entire main video conference terminal, such as the transceiver 310 and the memory 330, using various interfaces and lines, and perform various functions of the main video conference terminal and process data by running or executing software programs and/or modules stored in the memory 330 and calling data stored in the memory 330, thereby performing overall monitoring of the main video conference terminal. Alternatively, processor 320 may include one or more processing units; preferably, processor 320 may integrate an application processor and a modem processor, wherein the application processor primarily handles operating systems and the modem processor primarily handles wireless communications. The processor 320 may also be a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, or the like. The memory 330 may be used to store software programs and modules, and the processor 320 executes various functional applications and data processing of the video conference terminal by operating the software programs and modules stored in the memory 330. The memory 330 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system; the storage data area may store data (such as question information, page identification) generated or received during use according to the master video conference terminal, and the like. Further, the memory 330 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 volatile solid state storage device.

As shown in fig. 4, the specific processing flow of the method may include the following steps:

step 401, a server receives a question request sent by a listening and speaking video conference terminal, wherein the question request carries question information and input starting time of the question information.

In implementation, when a student listens to a class, the student can carry a mobile terminal such as a mobile phone or a tablet personal computer and can establish connection with a listening and speaking video conference terminal through the mobile terminal, for example, an application program of a network classroom can be installed on the mobile terminal, the application program can be started, the mobile terminal can display a login interface of the application program, and the student can input question asking personal information in the login interface. The questioning personal information may include one or more of a name, a mobile phone number, and a mailbox. After the mobile terminal can send the input question personal information to the listening and speaking video conference terminal, the listening and speaking video conference terminal can send the question personal information to the MCU for verification, and after the MCU passes the verification, the mobile terminal can send a verification success message to the listening and speaking video conference terminal so that the mobile terminal can display a question entrance interface. The student can click the question option in the question entrance interface, the mobile terminal can send a question request to the listening and speaking video conference terminal, and after receiving the lecture listening request, the listening and speaking video conference terminal can record the time of receiving the question request (namely the starting input time of the question information) and can send a request response to the mobile terminal. After receiving the request response, the mobile terminal can display an input interface of the problem, students can input problem information in the input interface of the problem, the problem information can be character information or voice information, the students can click a sending option, and the mobile terminal can send the problem information to a listening and speaking video conference terminal. After receiving the question information, the listening and speaking video conference terminal may add the question information, the start input time of the question information, the conference site name (e.g., beijing, shanghai, etc.) of the conference site to which the listening and speaking video conference terminal belongs, and the questioner identifier (e.g., name or mailbox, etc.) to the questioning request, and may then send the questioning request to the MCU. The challenge request may be as follows:

time of input

Name of meeting place

Questioner mark

Question information

After receiving the question request sent by the listening and speaking video conference terminal, the MCU can analyze the question request, acquire question information carried by the question request, the input starting time of the question information, the name of the conference place to which the listening and speaking video conference terminal belongs and the identification of a questioner, and can sequentially number the received question information according to the receiving sequence of the question information so as to carry out subsequent processing.

Step 402, the server obtains the page start time corresponding to each teaching page sent by the main speaking video conference terminal of the network classroom to which the listening and speaking video conference terminal belongs.

In implementation, the teaching data sent by the video conference call terminal to the MCU may be frame data of a teaching page, and when receiving a frame data, the MCU may compare the currently received frame data with the last received frame data by an image contrast recognition technique to determine the similarity between the currently received frame data and the last received frame data, if the similarity satisfies a preset similarity condition, it may determine that the currently received frame data and the last received frame data correspond to the same teaching page, and if the similarity does not satisfy the preset similarity condition, it may determine that the currently received frame data and the last received frame data correspond to different teaching pages, and may record the current time, and use the current time as the page start time of the teaching page corresponding to the currently received frame data, and further store the page identifier of the teaching page corresponding to the page start time, the corresponding relation table of the teaching page and the page starting time is established, and can be shown as the following table:

teaching page	Page start time
		P1	10：00
P2	10：05
		P3	10：08
……	……

In addition, the teacher can also turn pages through the page turning control key, after receiving the page turning instruction, the talkback video conference terminal can perform page turning processing, display a new teaching page, and send the frame data of the currently displayed teaching page and the page turning notification message to the MCU, and the MCU can store the received page identification of the teaching page corresponding to the current time (namely the page starting time).

And step 403, the server determines the teaching page corresponding to the question information according to the input starting time of the question information and the page starting time corresponding to each teaching page.

In implementation, after receiving the question request, the MCU may acquire the time to start inputting the question information, and then may query the time slice corresponding to the time to start inputting the question information according to the correspondence table between the teaching page and the page start time, thereby determining the teaching page corresponding to the question information. For example, if the starting input time of the question information is 10:06, the page corresponding to the question information may be determined to be P2.

And step 404, the server sends a question message to the master video conference terminal, wherein the question message carries question information and a page identifier of a teaching page corresponding to the question information.

In implementation, after the MCU determines the teaching page corresponding to the question information, it may send a question message to the video conference terminal. The question message may carry one or more of question information, time of starting to input the question information, number of the question information, page identifier of teaching page corresponding to the question information, name of meeting place where the listening and speaking video conference terminal belongs to, and identifier of questioner.

Optionally, the MCU may further extract keywords from the question information to classify the question information, and the corresponding processing procedure may be as follows: acquiring a keyword in the question information; and sending a question message to the master video conference terminal, wherein the question message carries question information, keywords of the question information and page identification of the teaching page corresponding to the question information.

In implementation, the MCU may extract keywords, such as addition, subtraction, or integration, from the question information through a pre-stored keyword algorithm. The MCU may add the extracted keyword to the question message, and the question message may be as follows:

the MCU may send a challenge message to the master video conference terminal each time a challenge request is received. Meanwhile, the MCU can send the question message to the recording and broadcasting server, the recording and broadcasting server can store the question message after receiving the question message, based on the description, the recording and broadcasting server can receive the recording and broadcasting stream sent by the MCU in real time and can store the recording and broadcasting stream, and when receiving the question message, the recording and broadcasting server can automatically perform dotting processing on the recording and broadcasting stream and perform associated storage on the question message and the recording and broadcasting stream. Therefore, teachers can check the question information of all questioners after class and can quickly acquire the teaching content corresponding to the question information, and the answering efficiency can be improved.

Optionally, a condition for sending the question message may be set, and accordingly, the processing procedure of step 404 may be as follows: and if the starting input time of the question information is later than the page starting time corresponding to the currently displayed teaching page, sending a question message to the talkback video conference terminal.

In implementation, the MCU can compare the input starting time of the question information with the page starting time corresponding to the currently displayed teaching page, and can send a question message to the talkback video conference terminal if the input starting time of the question information is later than the page starting time corresponding to the currently displayed teaching page; if the starting input time of the question information is earlier than the starting time of the page corresponding to the currently displayed teaching page, the question message is not sent to the talkback video conference terminal.

Step 405, the master video conference terminal receives a question message sent by the server, wherein the question message carries question information and a page identifier of a teaching page corresponding to the question information.

In implementation, the master video conference terminal may receive the question message sent by the server, analyze the question message, obtain question information carried in the question message, and information such as a page identifier of a teaching page corresponding to the question information, and may store the information.

Optionally, for the above case of extracting the keyword from the question information, correspondingly, the processing procedure of step 405 may be as follows: receiving a question message sent by a server, wherein the question message carries question information, a keyword of the question information and a page identifier of a teaching page corresponding to the question information;

in implementation, the master video conference terminal can receive the question message sent by the server, analyze the question message, and obtain question information carried in the question message, keywords of the question information, and information such as a page identifier of a teaching page corresponding to the question information.

And step 406, if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page proximity condition, the talkback video conference terminal displays the question information.

In implementation, the video conference call terminal can determine a teaching page corresponding to the page identifier of the question message, and then can determine the page number proximity between the teaching page and the currently displayed teaching page, if the page number proximity meets a preset page number proximity condition, the video conference call terminal can display the question information, and if the page number proximity does not meet the preset page number proximity condition, the video conference call terminal does not display the question information. For example, if the difference between the number of pages of the teaching page and the currently displayed teaching page is less than 3 pages, question information may be displayed. Therefore, the video conference terminal for the talkback can identify the question information related to the currently displayed teaching page for displaying, and a teacher can clearly determine the teaching page corresponding to the displayed question information, so that the real-time teaching effect can be improved, and the efficiency of answering questions can be improved.

Optionally, only the question information corresponding to the currently displayed teaching page may be displayed, and correspondingly, the processing procedure of step 406 may be as follows: and if the teaching page corresponding to the page identifier is the same as the currently displayed teaching page, displaying the problem information.

In implementation, the video conference call terminal can determine a teaching page corresponding to the page identifier of the question message, then judge whether the teaching page is the currently displayed teaching page, and if so, display the question information; if not, the issue information may not be displayed. When the master video conference terminal displays the problem information, the problem information can be superposed on the currently displayed teaching page for display; alternatively, the question information may be displayed in a preset blank area, for example, the question information may be displayed in a double-screen manner on an interface of the main video conference terminal, as shown in fig. 5.

Optionally, the problem information may be classified and displayed according to the keywords, and accordingly, the processing procedure of step 406 may be as follows: and if the teaching page corresponding to the page identification and the currently displayed teaching page meet the preset page number proximity condition, displaying the question information in a display area corresponding to the keyword category to which the keyword belongs.

In implementation, the video conference terminal may classify the question information according to the keywords, for example, the question information with the same keyword may be classified into one category, and then the question information with the same keyword category may be displayed in a centralized manner. For example, the keyword category may be "differentiation" and "integration", and the lecture video conference terminal may classify the question information whose keyword is "differentiation" into one category and the question information whose keyword is "integration" into one category, as shown in fig. 6.

Optionally, the video conference call terminal may display a page identifier corresponding to the problem information, and accordingly, the processing in step 406 may be as follows: and if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page proximity condition, displaying the problem information and the page identifier of the teaching page corresponding to the problem information.

In implementation, the video conference call terminal can determine a teaching page corresponding to the page identifier of the question message, and then can determine the page number proximity between the teaching page and the currently displayed teaching page, if the page number proximity meets a preset page number proximity condition, the video conference call terminal can display the question information and the page identifier of the teaching page corresponding to the question information, and the page identifier can be the page number of the teaching page. For example, if the number of pages of the currently displayed teaching page is 5, the page identifier of the teaching page corresponding to the question information is P3, and the question information indicates whether the second question can be solved by the cauchy median theorem, then "whether the second question can be solved by the cauchy median theorem (P3)" may be displayed.

In addition, the main video conference terminal may also display a reply option corresponding to each question information, a teacher may reply to the currently displayed question information in real time during the course of the lecture, and may click the reply option corresponding to the replied question information, the main video conference terminal may receive a reply instruction corresponding to the replied question information, and the main video conference terminal may display that the question information is replied, as shown in fig. 5. Meanwhile, the question information can be marked through the replied mark, so that a reply message can be generated and sent to the MCU, and the reply message can carry a keyword corresponding to the question information, the number of the question information, the page mark of the currently displayed teaching page and the replied mark. For the question information which is not answered in the teaching page, the talkback video conference terminal can mark the question information through the unanswered mark and send a reply message to the MCU when the teacher turns to the next page. Wherein, the replied identification can be 1, and the unanswered identification can be 0. The teacher may only reply to one question at a time, or reply to all questions included in a certain keyword category, and the case of replying to all questions included in a certain keyword category may include the following steps:

step one, a talkback video conference terminal receives a reply instruction corresponding to the target keyword category.

In implementation, after the teacher replies to all questions included in a certain keyword category (i.e., a target keyword category), the teacher may click a reply option corresponding to the keyword category, and the main-speaking video conference terminal may receive a reply instruction corresponding to the target keyword category, and may mark all questions included in the target keyword category as having been replied.

And step two, when the talkback video conference terminal receives a reply instruction corresponding to the target keyword category, the reply message can be sent to the server, and the reply message carries the target keyword category and the page identifier of the currently displayed teaching page.

In implementation, for each question information included in the target keyword category, the talkback video conference terminal may generate a reply message corresponding to each question information, and the reply message may carry a page identifier of the currently displayed teaching page, the target keyword category, a number of the question information, and a replied identifier. The video conference call terminal may also generate a reply message corresponding to all question information included in the target keyword category, and the reply message may carry the target keyword category, the page identifier of the currently displayed teaching page, and the replied identifier. In addition, the reply message may also carry the number of each question information included in the target keyword category, so that the MCU may accurately determine the question information that has been replied. The reply message may be as follows:

numbering

Page identification

Keyword categories

Reply identification

And step three, the server receives a reply message sent by the talkback video conference terminal, wherein the reply message carries the target keyword category and the page identifier of the teaching page.

In implementation, after receiving a reply message sent by the talkback video conference terminal, the MCU may parse the reply message to obtain information such as a target keyword category, a currently displayed page identifier of the teaching page, and a replied identifier.

And step four, the server determines corresponding question information according to the pre-stored corresponding relation among the page identification, the keyword category and the question information and the target keyword category and the page identification in the reply message, and marks the determined question information as a replied question.

In implementation, the MCU may pre-store a correspondence between the page identifier, the keyword category, and the question information, and the MCU may search for the question information corresponding to the target keyword category and the page identifier in the reply message in the correspondence, so as to mark the searched question information as the answered question information. In addition, for the condition that the reply message carries the number, the MCU can also search according to the number and mark the searched question information as the answered question information.

Meanwhile, the MCU can forward the received reply message to the recording and broadcasting system, the recording and broadcasting system can receive the reply message, can search the corresponding question information according to the reply message, and mark the searched question information as a replied question, so that when a teacher checks the question information after class, the teacher can quickly know which question information is replied and which question information is not replied, and reply to the question information which is not replied, thereby improving the efficiency of replying.

Based on the same technical concept, the embodiment of the present invention also provides a server, as shown in fig. 2, including a transceiver 210, a processor 220, and a memory 230; wherein the content of the first and second substances,

the transceiver 210 is configured to receive a question request sent by a listening and speaking video conference terminal, where the question request carries question information and a start input time of the question information;

the processor 220 is configured to obtain page start time corresponding to each teaching page that has been sent by a main speaking video conference terminal of an online classroom to which the listening/speaking video conference terminal belongs, and that is stored in the memory 230;

the processor 220 is further configured to determine a teaching page corresponding to the question information according to the input start time of the question information and the page start time corresponding to each teaching page;

the transceiver 210 is further configured to send a question message to the talkback video conference terminal, where the question message carries the question information and a page identifier of a teaching page corresponding to the question information.

In implementation, a student can send a question request to a listening and speaking video conference terminal through a mobile terminal, after receiving the listening and speaking video conference terminal receives the listening and speaking request, the student can record the time of receiving the question request (namely the starting input time of question information), and inform the mobile terminal of displaying an input interface of a question, the student can input the question information in the input interface of the question, click a sending option, and the mobile terminal can send the question information to the listening and speaking video conference terminal. After receiving the question information, the listening and speaking video conference terminal can add the question information and the starting input time of the question information into the question request and send the question request to the server. After the transceiver 210 receives the question request sent by the listening/speaking video conference terminal, the processor 220 may obtain the page start time corresponding to each teaching page sent by the main speaking video conference terminal of the network classroom to which the listening/speaking video conference terminal belongs, which is stored in the memory 230, and then the processor 220 may query the time slice corresponding to the start input time of the question information according to the correspondence table between the teaching pages and the page start time to determine the teaching page corresponding to the question information. The transceiver 210 may send a question message to the master video conference terminal, where the question message may carry question information and a page identifier of a teaching page corresponding to the question.

Optionally, the processor 220 is further configured to:

acquiring a keyword in the question information;

the transceiver 210 is further configured to:

In implementation, the processor 220 may extract a keyword in the question information through a pre-stored keyword algorithm, and then may trigger the transceiver 210 to send a question message to the talkback video conference terminal, where the question message carries the question information, the keyword of the question information, and a page identifier of a teaching page corresponding to the question information.

Optionally, the transceiver 210 is further configured to:

the processor 220 is further configured to determine corresponding question information according to the page identifier, the correspondence between the keyword category and the question information pre-stored in the memory 230, and the target keyword category and the page identifier in the reply message, and mark the determined question information as a answered question.

In implementation, a teacher may reply to all questions included in a certain keyword category, the talkback video conference terminal may send a reply message to the server, the transceiver 210 may receive the reply message, the reply message may carry a target keyword category and a page identifier of a teaching page, the processor 220 searches for question information corresponding to the target keyword category and the page identifier in the reply message according to a correspondence relationship between the page identifier, the keyword category, and the question information, which is pre-stored in the memory 230, and marks the found question information as the answered question information.

Optionally, the transceiver 210 is further configured to:

In an implementation, the processor 220 may compare the input start time of the question information with the page start time corresponding to the currently displayed teaching page, and may trigger the transceiver 210 to send the question message to the talkback video conference terminal if the input start time of the question information is later than the page start time corresponding to the currently displayed teaching page.

Based on the same technical concept, the embodiment of the invention also provides a talkback video conference terminal, which comprises a receiver, a transmitter and a processor 320; wherein the content of the first and second substances,

the transceiver 310 is configured to receive a question message sent by a server, where the question message carries question information and a page identifier of a teaching page corresponding to the question information;

the processor 320 is configured to display the question information if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset page number proximity condition stored in the memory 330.

In an implementation, the transceiver 310 may receive a question message sent by a server, the processor 320 may obtain question information carried in the question message and a page identifier of a teaching page corresponding to the question information, the processor 320 may further determine the teaching page corresponding to the page identifier of the question message, and then may determine the page number proximity of the teaching page to the currently displayed teaching page, if the page number proximity satisfies a preset page number proximity condition, the processor 320 may display the question information, and if not, the processor does not display the question information.

Optionally, the transceiver 310 is further configured to:

the processor 320 is further configured to:

and if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page number proximity condition stored in the memory 330, displaying the question information in a display area corresponding to the keyword category to which the keyword belongs.

In an implementation, the transceiver 310 may receive a question message sent by a server, and the processor 320 may classify the question information according to keywords carried in the question message, and display the question information of the same keyword category collectively. If the processor 320 judges that the teaching page corresponding to the page identifier in the question message and the currently displayed teaching page meet the preset page number proximity condition, the question information is classified and displayed based on the keyword category.

Optionally, the transceiver 310 is further configured to:

In implementation, after a teacher replies to all questions included in a certain keyword category (i.e., a target keyword category), the teacher may click a reply option corresponding to the keyword category, the transceiver 310 may receive a reply instruction corresponding to the target keyword category, and then the processor 320 may mark all questions included in the target keyword category as replied, and further trigger the transceiver 310 to send a reply message to the server, where the reply message includes the target keyword category and a page identifier of a currently displayed teaching page.

Optionally, the processor 320 is further configured to:

In implementation, the processor 320 may determine a teaching page corresponding to the page identifier of the question message, then determine whether the teaching page is a currently displayed teaching page, and if so, may display the question information; if not, the issue information may not be displayed.

Optionally, the processor 320 is further configured to:

and if the teaching page corresponding to the page identifier and the currently displayed teaching page meet the preset page number proximity condition stored in the memory 330, displaying the question information and the page identifier of the teaching page corresponding to the question information.

In implementation, the processor 320 may determine a teaching page corresponding to the page identifier of the question message, may then determine the page number proximity of the teaching page to the currently displayed teaching page, and may display the question information and the page identifier of the teaching page corresponding to the question information if the page number proximity satisfies a preset page number proximity condition.

Optionally, the processor 320 is configured to:

and displaying the question information in a preset blank area.

In implementation, when displaying the question information, the processor 320 may display the question information superimposed on the currently displayed teaching page; alternatively, the question information may be displayed in a preset blank area, for example, the question information may be displayed in a form of a double screen.

Based on the same technical concept, an embodiment of the present invention further provides a server, as shown in fig. 7, where the server includes:

a first receiving module 710, configured to receive a question request sent by a listening/speaking video conference terminal, where the question request carries question information and a start input time of the question information;

a first obtaining module 720, configured to obtain a page start time corresponding to each teaching page that has been sent by a main speaking video conference terminal of a webcast to which the listening/speaking video conference terminal belongs;

a determining module 730, configured to determine, according to the input start time of the question information and the page start time corresponding to each teaching page, a teaching page corresponding to the question information;

a sending module 740, configured to send a question message to the master video conference terminal, where the question message carries the question information and a page identifier of a teaching page corresponding to the question information.

In implementation, a student can send a question request to a listening and speaking video conference terminal through a mobile terminal, after receiving the listening and speaking video conference terminal receives the listening and speaking request, the student can record the time of receiving the question request (namely the starting input time of question information), and inform the mobile terminal of displaying an input interface of a question, the student can input the question information in the input interface of the question, click a sending option, and the mobile terminal can send the question information to the listening and speaking video conference terminal. After receiving the question information, the listening and speaking video conference terminal can add the question information and the starting input time of the question information into the question request and send the question request to the server. The first receiving module 710 of the server may receive a question request sent by a listening/speaking video conference terminal, then the first obtaining module 720 may obtain a page start time corresponding to each teaching page sent by a main speaking video conference terminal of a network classroom to which the listening/speaking video conference terminal belongs, and the determining module 730 may query a time slice corresponding to a start input time of the question information according to a correspondence table between the teaching pages and the page start time, and determine the teaching page corresponding to the question information. The sending module 740 may send a question message to the master video conference terminal. The question message may carry question information and a page identifier of a teaching page corresponding to the question. The first receiving module 710 and the sending module 740 may be implemented by the transceiver 210 and the processor 220 of the server together, and the first obtaining module 720 and the determining module 730 may be implemented by the processor 220 of the server.

Optionally, as shown in fig. 8, the server further includes:

a second obtaining module 750, configured to obtain a keyword in the question information;

the sending module 740 is configured to:

In implementation, the second obtaining module 750 may extract a keyword in the question information through a pre-stored keyword algorithm, and then the sending module 740 may send a question message to the talkback video conference terminal, where the question message carries the question information, the keyword of the question information, and a page identifier of a teaching page corresponding to the question information. The second obtaining module 750 may be implemented by the processor 220 of the server.

Optionally, as shown in fig. 9, the server further includes:

a second receiving module 760, configured to receive a reply message sent by the talkback video conference terminal, where the reply message carries a target keyword category and a page identifier of a teaching page;

a labeling module 770, configured to determine corresponding question information according to a pre-stored correspondence between a page identifier, a keyword category, and question information, and a target keyword category and a page identifier in the reply message, and label the determined question information as a answered question.

In implementation, a teacher may reply to all questions included in a certain keyword category, the talkback video conference terminal may send a reply message to the server, the second receiving module 760 may receive the reply message, the reply message carries a target keyword category and a page identifier of a teaching page, and the tagging module 770 may search, according to a correspondence relationship among pre-stored page identifiers, keyword categories, and question information, question information corresponding to the target keyword category and the page identifier in the reply message, and tag the searched question information as answered question information. The second receiving module 760 may be implemented by the transceiver 210 of the server and the marking module 770 may be implemented by the processor of the server 220.

Optionally, the sending module 740 is configured to:

In an implementation, the sending module 740 may compare the input start time of the question information with the page start time corresponding to the currently displayed teaching page, and if the input start time of the question information is later than the page start time corresponding to the currently displayed teaching page, the sending module 740 may send the question message to the talkback video conference terminal.

Based on the same technical concept, an embodiment of the present invention further provides a talkback video conference terminal, as shown in fig. 10, the talkback video conference terminal includes:

a receiving module 1010, configured to receive a question message sent by a server, where the question message carries question information and a page identifier of a teaching page corresponding to the question information;

and a display module 1020, configured to display the question information if the teaching page corresponding to the page identifier and the currently displayed teaching page meet a preset page proximity condition.

In implementation, the receiving module 1010 may receive a question message sent by a server, acquire question information carried in the question message, and a page identifier of a teaching page corresponding to the question information, and the displaying module 1020 may determine the teaching page corresponding to the page identifier of the question message, and then may determine the page number proximity of the teaching page and the currently displayed teaching page, if the page number proximity satisfies a preset page number proximity condition, the displaying module 1020 may display the question information, and if not, the displaying is not performed. The receiving module 1010 may be implemented by the transceiver 310 of the main video conference terminal, and the displaying module 1020 may be implemented by the processor 320 of the main video conference terminal.

Optionally, the receiving module 1010 is configured to:

a displayed module 1020 for:

In implementation, the receiving module 1010 may receive a question message sent by a server, and the displaying module 1020 may classify the question information according to a keyword carried in the question message, and collectively display the question information of the same keyword category. If the display module 1020 determines that the teaching page corresponding to the page identifier in the question message and the currently displayed teaching page meet the preset page proximity condition, the display module 1020 may display the question information in a classified manner based on the keyword category.

Optionally, as shown in fig. 11, the master video conference terminal further includes:

a sending module 1030, configured to send a reply message to the server when a reply instruction corresponding to the target keyword category is received, where the reply message carries the target keyword category and the page identifier of the currently displayed teaching page.

In implementation, after a teacher replies to all questions included in a certain keyword category (i.e., a target keyword category), the teacher may click a reply option corresponding to the keyword category, and the sending module 1030 may receive a reply instruction corresponding to the target keyword category, may mark all questions included in the target keyword category as replied, and may send a reply message to the server, where the reply message carries the target keyword category and a page identifier of a currently displayed teaching page. The transmitting module 1030 may be implemented by the transceiver 310 and the processor 320 of the intercom video conferencing terminal together.

Optionally, the display module 1020 is configured to:

In implementation, the display module 1020 may determine a teaching page corresponding to the page identifier of the question message, and then determine whether the teaching page is a currently displayed teaching page, and if so, may display the question information; if not, the issue information may not be displayed.

Optionally, the display module 1020 is configured to:

In implementation, the display module 1020 may determine a teaching page corresponding to the page identifier of the question message, and then may determine the page number proximity of the teaching page to the currently displayed teaching page, and if the page number proximity satisfies a preset page number proximity condition, the display module 1020 may display the question information and the page identifier of the teaching page corresponding to the question information.

Optionally, the display module 1020 is configured to:

and displaying the question information in a preset blank area.

In implementation, when displaying the question information, the display module 1020 may superimpose the question information on the currently displayed teaching page for display; alternatively, the question information may be displayed in a preset blank area, for example, the question information may be displayed in a form of a double screen.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A method of displaying issue information, the method comprising:

2. The method of claim 1, further comprising:

acquiring a keyword in the question information;

3. The method of claim 2, further comprising:

4. The method of claim 1, wherein sending a question message to the master video conference terminal comprises:

5. A method of displaying issue information, the method comprising:

receiving a question message sent by a server, wherein the question message carries question information and a page identifier of a teaching page corresponding to the question information, the teaching page is determined by the server according to the starting input time of the question information and the page starting time corresponding to each teaching page, the starting input time is carried in a question request sent by a listening and speaking video conference terminal, and the page starting time corresponding to each teaching page is sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs;

6. The method according to claim 5, wherein the receiving a question message sent by a server, the question message carrying question information, and a page identifier of a teaching page corresponding to the question information, comprises:

7. The method of claim 6, further comprising:

8. The method according to claim 5, wherein if the teaching page corresponding to the page identifier and the currently displayed teaching page satisfy a preset page number proximity condition, displaying the question information comprises:

9. The method according to claim 5, wherein if the teaching page corresponding to the page identifier and the currently displayed teaching page satisfy a preset page number proximity condition, displaying the question information comprises:

10. The method of claim 5, wherein the displaying the question information comprises:

and displaying the question information in a preset blank area.

11. A server, comprising a transceiver, a processor, and a memory; wherein the content of the first and second substances,

12. The server of claim 11, wherein the processor is further configured to:

acquiring a keyword in the question information;

the transceiver is further configured to:

13. The server of claim 12, wherein the transceiver is further configured to:

14. The server of claim 11, wherein the transceiver is further configured to:

15. A talkback video conference terminal, characterized in that the talkback video conference terminal comprises a transceiver, a memory and a processor; wherein the content of the first and second substances,

the transceiver is used for receiving a question message sent by a server, the question message carries question information and a page identifier of a teaching page corresponding to the question information, the teaching page is determined by the server according to a starting input time of the question information and a page starting time corresponding to each teaching page, the starting input time is carried in a question request sent by a listening and speaking video conference terminal, and the page starting time corresponding to each teaching page is sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs;

16. A intercom video conferencing terminal as in claim 15, wherein said transceiver is further configured to:

the processor is further configured to:

17. A intercom video conferencing terminal as in claim 16, wherein said transceiver is further configured to:

18. The intercom video conferencing terminal of claim 15, wherein the processor is further configured to:

19. The intercom video conferencing terminal of claim 15, wherein the processor is further configured to:

20. The intercom video conferencing terminal of claim 15, wherein the processor is configured to:

and displaying the question information in a preset blank area.

21. A server, characterized in that the server comprises:

22. The server of claim 21, further comprising:

the sending module is configured to:

23. The server according to claim 22, further comprising:

24. The server according to claim 21, wherein the sending module is configured to:

25. A intercom video conference terminal, comprising:

the system comprises a receiving module, a question processing module and a question processing module, wherein the receiving module is used for receiving question messages sent by a server, the question messages carry question information and page identifiers of teaching pages corresponding to the question information, the teaching pages are determined by the server according to input starting time of the question information and page starting time corresponding to each teaching page, the input starting time is carried in a question request sent by a listening and speaking video conference terminal, and the page starting time corresponding to each teaching page is sent by a main speaking video conference terminal of a network classroom to which the listening and speaking video conference terminal belongs;

26. A intercom video conferencing terminal as in claim 25, wherein said receiving module is configured to:

a display module to:

27. A intercom terminal as in claim 26 further comprising:

28. The intercom video conferencing terminal of claim 25, wherein the display module is configured to:

29. The intercom video conferencing terminal of claim 25, wherein the display module is configured to:

30. The intercom video conferencing terminal of claim 25, wherein the display module is configured to:

and displaying the question information in a preset blank area.

31. A system for displaying problem information, the system comprising a server and a talkback video conference terminal; wherein the content of the first and second substances,