CN111260975B - Method, device, medium and electronic equipment for multimedia blackboard teaching interaction - Google Patents
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Abstract
The present disclosure provides a method, apparatus, medium, and electronic device for multimedia blackboard teaching interaction. The demonstration content in the teaching process is stored in the historical teaching demonstration data set, and the demonstration content related to the students in questions or the teachers in answers is prompted to the teacher end and the student end in real time, so that the teachers and the students can obtain corresponding information in time, and the teaching interaction efficiency is improved.
Description
Technical Field
The disclosure relates to the technical field of computers, in particular to a method, a device, a medium and electronic equipment for multimedia blackboard teaching interaction.
Background
Along with the development of the internet, the online teaching can lead excellent teachers to give lessons in a centralized way, the number of students in lessons is not limited by places, the time for listening to lessons is flexible, and a plurality of advantages such as repeated watching and learning can be achieved, thus gradually becoming a development trend. Particularly, the teaching aid is an important teaching means for training institutions.
In online teaching, the multimedia blackboard is vivid and lively in class contents with luxuriant emotion. Are increasingly popular with students.
Multimedia blackboard teaching is to show students two different information sources related to the teaching content of teachers through a network. For example, one display screen displays instructional content and another display screen displays augmentation content associated with the instructional content; or one display screen displays the teaching image of an excellent teacher, and the other display screen displays the synchronous teaching content of the teacher. Thereby achieving the teaching effect of sound and emotion.
However, the multimedia blackboard has a barrier to smooth communication in the aspect of online interaction, compared with on-site teaching.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
An object of the present disclosure is to provide a method, an apparatus, a medium, and an electronic device for multimedia blackboard teaching interaction, which can solve at least one of the above-mentioned technical problems. The specific scheme is as follows:
according to a specific embodiment of the present disclosure, in a first aspect, the present disclosure provides a method for multimedia blackboard teaching interaction, including:
acquiring a first composite stream sent by a student end; the first composite stream is a composite stream after the last interaction is finished;
extracting a first audio stream from the first composite stream;
converting the first audio stream segment into first audio text information;
analyzing the first audio character information according to a semantic analysis model to obtain question character information; wherein the questioning text information is associated with a first question;
analyzing the question text information to obtain question key information;
retrieving a historical teaching demonstration data set based on the questioning key information, and acquiring corresponding first historical teaching demonstration information;
pushing the first history teaching demonstration information to a teacher end and the student end respectively;
acquiring a second composite stream sent by the teacher end; the second composite stream is the composite stream after the last interaction is finished;
extracting a second audio stream from the second composite stream;
converting the second audio stream into second audio text information;
analyzing the second audio character information according to the question key information and a semantic analysis model to obtain answering character information responding to the first question;
analyzing the answering character information to obtain answering key information;
retrieving a historical teaching demonstration data set based on the answer key information, and acquiring corresponding second historical teaching demonstration information;
and pushing the second history teaching demonstration information to the teacher end and the student end respectively.
According to a second aspect, the present disclosure provides an apparatus for multimedia blackboard instructional interaction, comprising:
the method comprises the steps of obtaining a first compound stream unit, wherein the first compound stream unit is used for obtaining a first compound stream sent by a student end; the first composite stream is a composite stream after the last interaction is finished;
an extract first audio stream unit for extracting a first audio stream from the first composite stream;
a convert to first audio text information unit for converting the first audio stream segment to first audio text information;
the question word information obtaining unit is used for analyzing the first audio word information according to a semantic analysis model and obtaining question word information; wherein the questioning text information is associated with a first question;
a question key information obtaining unit for analyzing the question character information and obtaining question key information;
a first history teaching demonstration information acquisition unit used for retrieving a history teaching demonstration data set based on the question key information and acquiring corresponding first history teaching demonstration information;
the first history teaching demonstration information pushing unit is used for pushing the first history teaching demonstration information to a teacher end and the student end respectively;
the second composite stream acquiring unit is used for acquiring a second composite stream sent by the teacher end; the second composite stream is a composite stream after the last interaction is finished;
an extract second audio stream unit for extracting a second audio stream from the second composite stream;
a convert to second audio text information unit for converting the second audio stream to second audio text information;
the answer character information obtaining unit is used for analyzing the second audio character information according to the question key information and the semantic analysis model and obtaining answer character information responding to the first question;
the key information answering unit is used for analyzing the character answering information and acquiring key answering information;
a second history teaching demonstration information obtaining unit, configured to retrieve a history teaching demonstration data set based on the answer key information, and obtain corresponding second history teaching demonstration information;
and the second history teaching demonstration information pushing unit is used for pushing the second history teaching demonstration information to the teacher end and the student end respectively.
According to a third aspect, the present disclosure provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method for multimedia blackboard tutorial interaction according to any of the first aspect.
According to a fourth aspect thereof, the present disclosure provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method for multimedia blackboard tutorial interaction of any of the first aspect.
Compared with the prior art, the scheme of the embodiment of the disclosure at least has the following beneficial effects:
the present disclosure provides a method, apparatus, medium, and electronic device for multimedia blackboard teaching interaction. The demonstration content in the teaching process is stored in the historical teaching demonstration data set, and the demonstration content related to the students in questions or the teachers in answers is prompted to the teacher end and the student end in real time, so that the teachers and the students can obtain corresponding information in time, and the teaching interaction efficiency is improved.
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The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements. It should be understood that the drawings are schematic and that elements and features are not necessarily drawn to scale. In the drawings:
FIG. 1 shows a flow diagram of a method for multimedia blackboard instructional interaction, according to an embodiment of the present disclosure;
FIG. 2 shows a network schematic of a central server for a method for multimedia blackboard instructional interaction, according to an embodiment of the present disclosure;
FIG. 3 shows a block diagram of elements of an apparatus for multimedia blackboard instructional interaction, in accordance with an embodiment of the present disclosure;
fig. 4 shows an electronic device connection structure schematic according to an embodiment of the present disclosure.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more complete and thorough understanding of the present disclosure. It should be understood that the drawings and the embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order, and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.
The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to". The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description.
It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.
It is noted that references to "a" or "an" in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will appreciate that references to "one or more" are intended to be exemplary and not limiting unless the context clearly indicates otherwise.
The names of messages or information exchanged between devices in the embodiments of the present disclosure are for illustrative purposes only, and are not intended to limit the scope of the messages or information.
Alternative embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
A first embodiment provided by the present disclosure is an embodiment of a method for multimedia blackboard teaching interaction.
The embodiments of the present disclosure are described in detail below with reference to fig. 1 and 2. Please refer to fig. 1.
Step S101, a first composite stream sent by a student end is obtained.
Referring to fig. 2, in the multimedia blackboard teaching interaction, the device at the teacher end includes: the system comprises a teacher camera and a video acquisition computer for acquiring teacher teaching composite stream, a demonstration computer for assisting in playing a demonstration manuscript, a student image computer for displaying student images and an exchange computer for displaying the communication and interaction information between the teacher and the students. Apparatus at a student end comprising: the system comprises a multimedia blackboard, a student camera and a video acquisition computer. A multimedia blackboard, comprising: the display device comprises a transparent writing board and at least one or more display devices of the multimedia computer, wherein the display devices are hermetically attached to the back surface of the whole writing board. The multimedia computer includes: the system comprises a demonstration computer for assisting in playing a teacher-side demonstration manuscript, a teacher image computer for displaying teacher images and an exchange computer for displaying the communication and interaction information between the teacher and students.
The composite stream is composed of a video stream and an audio stream.
In the whole teaching interaction process, the compound stream of the student end and the compound stream of the teacher end are continuously transmitted to the central server, and are uniformly distributed and managed by the central server.
The first composite stream is the composite stream after the last interaction ending time stamp.
One interaction is from the student asking a question to which the teacher answers and then ends.
The last interaction is ended after the teacher answers the question.
Step S102, extracting a first audio stream from the first composite stream.
Step S103, converting the first audio stream segment into first audio character information.
And step S104, analyzing the first audio character information according to a semantic analysis model to acquire question character information.
Wherein the questioning text information is associated with a first question.
Optionally, the analyzing the first audio text information according to the semantic analysis model to obtain question text information further includes the following steps:
and step S104-1, respectively pushing the question text information to the teacher end and the student end.
And step S105, analyzing the question character information and acquiring question key information.
The question key information refers to characteristic information which can represent the question in the student question. For example, students ask: is the cycle of the cycle accurate to the decimal place? The questioning key information includes: the "progenitor impulse", "circumferential rate" and/or "bit".
Optionally, after analyzing the question text information and acquiring the question key information, the method further includes the following steps:
and step S105-1, determining the current time as question asking time.
The current time may be the system time of the central computer or the network time.
And S105-2, storing the question time, the question key information and the question character information into a question and answer information set.
The question key information is stored in a question and answer information set so that the question and answer information can be retrieved through the question key information.
And S106, retrieving a historical teaching demonstration data set based on the question key information, and acquiring corresponding first historical teaching demonstration information.
A data set for a history teaching presentation, comprising: key information and teaching demonstration content.
In the teaching process of the teacher, the demonstration computer at the teacher end transmits the played teaching demonstration contents to the central service computer, the central service computer performs classification management on the teaching demonstration contents, and key information is extracted from the classified teaching demonstration contents.
And S107, respectively pushing the first history teaching demonstration information to a teacher end and the student end.
The first history teaching demonstration information is respectively pushed to the teacher end communication computer and the student end communication computer, so that teaching interactivity is improved.
The demonstration content in the teaching process is stored in the historical teaching demonstration data set, and the demonstration content related to the students in the questions is prompted to the teacher end and the student end in real time, so that the teacher and the students can acquire corresponding information in time, and the teaching interaction efficiency is improved.
And step S108, acquiring a second composite stream sent by the teacher end.
And the second composite stream is the composite stream after the last interaction is finished.
Step S109, extracting a second audio stream from the second composite stream.
Step S110, converting the second audio stream into second audio text information.
And step S111, analyzing the second audio character information according to the question key information and the semantic analysis model, and acquiring answer character information responding to the first question.
Optionally, after analyzing the second audio text information according to the question key information and the semantic analysis model and acquiring the answer text information responding to the first question, the method further includes the following steps:
and step S111-1, respectively pushing the answering text information to the teacher end and the student end.
The answering character information is respectively pushed to the communication computer at the teacher end and the communication computer at the student end, so that the teaching interactivity is improved.
And step S112, analyzing the answering character information to acquire answering key information.
The answer key information refers to characteristic information which can represent the answer in the teacher answer. For example, continuing the above example, the teacher answers: is the cycle of the ancestral Chong accurate to the seventh decimal place? The solution key information includes: the "progenitor origin", "circumferential ratio", "decimal fraction" and/or "seven bits".
Optionally, after analyzing the answer text information and acquiring the answer key information, the method further includes the following steps:
in step S112-1, the current time is determined as the solution time.
The current time may be the system time of the central computer or the network time. But the current time shown in this step should be the same as the source of the question time.
And step S112-2, storing the answering time, the answering key information and the answering character information into the question and answer information set.
The answer key information is stored in the question-answer information set so that the question-answer information can be retrieved by the answer key information.
And S113, retrieving a historical teaching demonstration data set based on the answer key information, and acquiring corresponding second historical teaching demonstration information.
Step S114, the second history teaching demonstration information is respectively pushed to the teacher end and the student end.
The demonstration content in the teaching process is stored in the historical teaching demonstration data set, and the demonstration content related to the teacher in the answering is prompted to the teacher end and the student end in real time, so that the teacher and the student can obtain corresponding information in time, and the teaching interaction efficiency is improved.
Optionally, the method further includes the following steps:
and step S120, generating a playback two-dimensional code.
The playback two-dimensional code at least comprises: a playback time threshold and access information associated with the set of question and answer information.
And playing back the information in the two-dimensional code so as to acquire the information within the playback time threshold range from the information source pointed by the access information.
Optionally, the method further includes the following steps:
step S130, obtaining the playback request information after scanning the playback two-dimensional code.
The playback request information includes at least: the playback time threshold and the access information. For obtaining information within a threshold playback time from the information source to which the access information points.
Step S131, retrieving the question and answer information set according to the access information, and acquiring the question time meeting the playback time threshold and the associated question text information.
The information source pointed by the access information is a question and answer information set.
Step S132, retrieving the question and answer information set according to the access information, and acquiring the answer time meeting the playback time threshold and the associated answer text information.
And step S133, generating time sequence according to the question time and the answer time.
Step S134, generating playback demonstration information based on the time sequence, the question word information corresponding to the time sequence and the answer word information corresponding to the time sequence.
Namely, the user can scan and play back the two-dimensional code to acquire the interactive content of the students and the teachers in the teaching interactive process at any time.
The demonstration content in the teaching process is stored in the historical teaching demonstration data set, and the demonstration content related to the students in questions or the teachers in answers is prompted to the teacher end and the student end in real time, so that the teachers and the students can obtain corresponding information in time, and the teaching interaction efficiency is improved.
Corresponding to the first embodiment provided by the disclosure, the disclosure also provides a second embodiment, namely a device for multimedia blackboard teaching interaction. Since the second embodiment is basically similar to the first embodiment, the description is simple, and the relevant portions should be referred to the corresponding description of the first embodiment. The device embodiments described below are merely illustrative.
Fig. 3 shows an embodiment of an apparatus for multimedia blackboard instructional interaction provided by the present disclosure.
Referring to fig. 3, the present disclosure provides an apparatus for multimedia blackboard teaching interaction, including:
a first compound stream obtaining unit 301, configured to obtain a first compound stream sent by a student; the first composite stream is a composite stream after the last interaction is finished;
an extract first audio stream unit 302 for extracting a first audio stream from the first composite stream;
a convert to first audio text information unit 303, configured to convert the first audio stream segment into first audio text information;
a question character information obtaining unit 304, configured to analyze the first audio character information according to a semantic analysis model, and obtain question character information; wherein the questioning text information is associated with a first question;
a question key information acquiring unit 305, configured to analyze the question text information and acquire question key information;
a first history teaching demonstration information obtaining unit 306, configured to retrieve a history teaching demonstration data set based on the question key information, and obtain corresponding first history teaching demonstration information;
a first history teaching demonstration information pushing unit 307, configured to push the first history teaching demonstration information to a teacher end and the student end respectively;
a second composite stream obtaining unit 308, configured to obtain a second composite stream sent by the teacher end; the second composite stream is a composite stream after the last interaction is finished;
an extract second audio stream unit 309 for extracting a second audio stream from the second composite stream;
a convert to second audio text information unit 310 for converting the second audio stream into second audio text information;
an obtaining answer text information unit 311, configured to analyze the second audio text information according to the question key information and a semantic analysis model, and obtain answer text information responding to the first question;
an answer key information obtaining unit 312, configured to analyze the answer text information and obtain answer key information;
a second history teaching demonstration information obtaining unit 313, configured to retrieve a history teaching demonstration data set based on the answer key information, and obtain corresponding second history teaching demonstration information;
a second history teaching demonstration information pushing unit 314, configured to push the second history teaching demonstration information to the teacher end and the student end, respectively.
Optionally, the apparatus further includes:
and the question text information pushing unit is used for respectively pushing the question text information to the teacher end and the student end after analyzing the first audio text information according to the semantic analysis model and acquiring the question text information.
Optionally, the apparatus further includes:
and the text information pushing and answering unit is used for respectively pushing the text information to the teacher end and the student end after analyzing the second audio text information according to the question key information and the semantic analysis model and acquiring the text information to answer the first question.
Optionally, the apparatus further includes:
a question determining time unit, configured to determine current time as question time after analyzing the question text information and obtaining question key information;
and the question information storage unit is used for storing the question time, the question key information and the question text information into a question and answer information set.
Optionally, the apparatus further includes:
the answer time determining unit is used for determining the current time as the answer time after analyzing the answer character information and acquiring the answer key information;
and the answer information storage unit is used for storing the answer time, the answer key information and the answer character information into the question and answer information set.
Optionally, the apparatus further includes:
the playback two-dimensional code generating unit is used for generating a playback two-dimensional code; the playback two-dimensional code at least comprises: a playback time threshold and access information associated with the set of question and answer information.
Optionally, the apparatus further includes:
a playback request information obtaining unit, configured to obtain playback request information obtained after scanning the playback two-dimensional code; the playback request information includes at least: the playback time threshold and the access information;
a question and answer information acquiring unit used for retrieving the question and answer information set according to the access information and acquiring the question time meeting the playback time threshold and the associated question and answer information;
an answer text information obtaining unit, configured to retrieve the question and answer information set according to the access information, and obtain the answer time and the associated answer text information that meet the playback time threshold;
the generation time ordering unit is used for generating time ordering according to the question asking time and the answering time;
and the playback demonstration information generating unit is used for generating playback demonstration information based on the time sequence, the question word information corresponding to the time sequence and the answer word information corresponding to the time sequence.
The demonstration content in the teaching process is stored in the historical teaching demonstration data set, and the demonstration content related to the students in questions or the teachers in answers is prompted to the teacher end and the student end in real time, so that the teachers and the students can obtain corresponding information in time, and the teaching interaction efficiency is improved.
The disclosed embodiment provides a third embodiment, namely an electronic device, which is used for a method for multimedia blackboard teaching interaction, and comprises: at least one processor; and a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the one processor to cause the at least one processor to perform the method for multimedia blackboard tutoring interaction as described in the first embodiment.
The disclosed embodiments provide a fourth embodiment, namely a computer storage medium for multimedia blackboard instructional interaction, said computer storage medium storing computer executable instructions that can perform the method for multimedia blackboard instructional interaction as described in the first embodiment.
Referring now to FIG. 4, shown is a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure. The terminal device in the embodiments of the present disclosure may include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a vehicle terminal (e.g., a car navigation terminal), and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. The electronic device shown in fig. 4 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 4, the electronic device may include a processing means (e.g., a central processing unit, a graphics processor, etc.) 401 that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)402 or a program loaded from a storage means 408 into a Random Access Memory (RAM) 403. In the RAM 403, various programs and data necessary for the operation of the electronic apparatus are also stored. The processing device 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An input/output (I/O) interface 405 is also connected to bus 404.
Generally, the following devices may be connected to the I/O interface 405: input devices 406 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; an output device 407 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage devices 408 including, for example, magnetic tape, hard disk, etc.; and a communication device 409. The communication device 409 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. While fig. 4 illustrates an electronic device having various means, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may alternatively be implemented or provided.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a non-transitory computer readable medium, the computer program containing program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication device 409, or from the storage device 408, or from the ROM 402. The computer program performs the above-described functions defined in the methods of the embodiments of the present disclosure when executed by the processing device 401.
It should be noted that the computer readable medium in the present disclosure can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
In some embodiments, the clients, servers may communicate using any currently known or future developed network Protocol, such as HTTP (HyperText Transfer Protocol), and may interconnect with any form or medium of digital data communication (e.g., a communications network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the Internet (e.g., the Internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed network.
The computer readable medium may be embodied in the electronic device; or may exist separately without being assembled into the electronic device.
Computer program code for carrying out operations for the present disclosure may be written in any combination of one or more programming languages, including but not limited to an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present disclosure may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.
The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), Complex Programmable Logic Devices (CPLDs), and the like.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other combinations of features described above or equivalents thereof without departing from the spirit of the disclosure. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (10)
1. A method for multimedia blackboard instructional interaction, comprising:
acquiring a first composite stream sent by a student end; the first composite stream is a composite stream after the last interaction is finished, and the interaction is started from the question of the student and ended after the teacher answers the question;
extracting a first audio stream from the first composite stream;
converting the first audio stream segment into first audio text information;
analyzing the first audio character information according to a semantic analysis model to obtain question character information; wherein the questioning text information is associated with a first question;
analyzing the question text information to obtain question key information;
retrieving a historical teaching demonstration data set based on the questioning key information, and acquiring corresponding first historical teaching demonstration information, wherein the historical teaching demonstration data set comprises key information and demonstration contents in a teaching process;
the first history teaching demonstration information is respectively pushed to a teacher end and the student end;
acquiring a second composite stream sent by the teacher end; the second composite stream is a composite stream corresponding to the first composite stream after the last interaction is finished;
extracting a second audio stream from the second composite stream;
converting the second audio stream into second audio text information;
analyzing the second audio character information according to the question key information and a semantic analysis model to obtain answering character information responding to the first question;
analyzing the answering character information to obtain answering key information;
retrieving a historical teaching demonstration data set based on the answer key information, and acquiring corresponding second historical teaching demonstration information;
and pushing the second history teaching demonstration information to the teacher end and the student end respectively.
2. The method of claim 1, wherein after analyzing the first audio text information according to the semantic analysis model and obtaining the questioning text information, the method further comprises:
and pushing the questioning text information to the teacher end and the student end respectively.
3. The method according to claim 2, wherein after analyzing the second audio text information according to the question key information and the semantic analysis model to obtain the answer text information responding to the first question, further comprising:
and respectively pushing the answering text information to the teacher end and the student end.
4. The method according to claim 1, wherein after analyzing the question text information and obtaining question key information, further comprising:
determining the current time as question time;
and storing the question time, the question key information and the question word information into a question and answer information set.
5. The method according to claim 4, wherein after analyzing the answer text information and obtaining answer key information, the method further comprises:
determining the current time as the answer time;
and storing the answering time, the answering key information and the answering character information into the question and answer information set.
6. The method of claim 5, further comprising:
generating a playback two-dimensional code; the playback two-dimensional code at least comprises: a playback time threshold and access information associated with the set of question and answer information.
7. The method of claim 6, further comprising:
obtaining playback request information after scanning the playback two-dimensional code; the playback request information includes at least: the playback time threshold and the access information;
retrieving the question and answer information set according to the access information, and acquiring the question time meeting the playback time threshold and the associated question text information;
retrieving the question and answer information set according to the access information, and acquiring the answer time meeting the playback time threshold and the associated answer text information;
generating time sequence according to the question-asking time and the answering time;
and generating playback demonstration information based on the time sequence, the question word information corresponding to the time sequence and the answer word information corresponding to the time sequence.
8. An apparatus for multimedia blackboard instructional interaction, comprising:
the method comprises the steps of obtaining a first compound flow unit, wherein the first compound flow unit is used for obtaining a first compound flow sent by a student end; the first composite stream is a composite stream after the last interaction is finished, and the interaction starts from the question asking of students and ends after the teacher answers the question;
an extract first audio stream unit for extracting a first audio stream from the first composite stream;
a convert to first audio text information unit for converting the first audio stream segment to first audio text information;
the question word information obtaining unit is used for analyzing the first audio word information according to a semantic analysis model and obtaining question word information; wherein the questioning text information is associated with a first question;
the unit for obtaining the key information of the question is used for analyzing the character information of the question and obtaining the key information of the question;
a first history teaching demonstration information obtaining unit, configured to retrieve a history teaching demonstration data set based on the question key information, and obtain corresponding first history teaching demonstration information, where the history teaching demonstration data set includes key information and demonstration content in a teaching process;
the first history teaching demonstration information pushing unit is used for pushing the first history teaching demonstration information to a teacher end and the student end respectively;
the second composite stream acquiring unit is used for acquiring a second composite stream sent by the teacher end; the second composite stream is a composite stream corresponding to the first composite stream after the last interaction is finished;
an extract second audio stream unit for extracting a second audio stream from the second composite stream;
a convert to second audio text information unit for converting the second audio stream to second audio text information;
the answer character information obtaining unit is used for analyzing the second audio character information according to the question key information and the semantic analysis model and obtaining answer character information responding to the first question;
the key information answering unit is used for analyzing the character answering information and acquiring key answering information;
a second history teaching demonstration information acquisition unit used for retrieving a history teaching demonstration data set based on the answer key information and acquiring corresponding second history teaching demonstration information;
and the second history teaching demonstration information pushing unit is used for pushing the second history teaching demonstration information to the teacher end and the student end respectively.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 7.
10. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out the method of any one of claims 1 to 7.
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| CN114038255B (en) * | 2021-11-29 | 2024-03-22 | Oook(北京)教育科技有限责任公司 | Answering system and method |
| CN114005079B (en) * | 2021-12-31 | 2022-04-19 | 北京金茂教育科技有限公司 | Multimedia stream processing method and device |
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