CN107657955A - A kind of interactive voice based on VR virtual classrooms puts question to system and method - Google Patents
A kind of interactive voice based on VR virtual classrooms puts question to system and method Download PDFInfo
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- CN107657955A CN107657955A CN201711095348.3A CN201711095348A CN107657955A CN 107657955 A CN107657955 A CN 107657955A CN 201711095348 A CN201711095348 A CN 201711095348A CN 107657955 A CN107657955 A CN 107657955A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000009471 action Effects 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000000284 extract Substances 0.000 claims description 3
- 238000012549 training Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
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- 230000007786 learning performance Effects 0.000 description 1
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/225—Feedback of the input speech
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Abstract
The present invention relates to a kind of interactive voice based on VR virtual classrooms to put question to system and method.Including server, speech recognition system, the helmet and handle.Its feature of this patent includes：To puing question to voice to be identified, virtual student puts question to according to the voice of identification to pick me, represent that normal student can allow it to answer a question, after answer, normal student is judged and evaluated according to the situation of answer, such as answer incorrect, other virtual students can also be allowed to continue to answer, until answer it is correct untill.All virtual students to answer the question are speaking ability by random question, and normal student uniformly can be judged and be evaluated after all answering.The enquirement of system imitation true class is putd question to by VR virtual classrooms by the present invention, helps normal student to realize accessible exchange with virtual student in VR virtual classrooms.
Description
Technical field
The present invention relates to one kind to put question to system and method, belongs to technical field of virtual reality, is specifically related to one kind and is based on
The interactive voice of VR virtual classrooms puts question to system and method.
Background technology
With the virtual reality technology increasingly ripe progressively popularization with application, the technology has at home and abroad been applied to multiple
The training of field, such as psychotherapy, high cost or Different high risk sites training, educational training and new person interview training field.Pass through
Virtual environment training assists practitioner to pinpoint the problems in the training process and gives timely guidance and help, strengthens practitioner
Technical ability or improve the training effectiveness of practitioner, without increasing extra any cost, and can also repeatedly use, this is
The clear superiority trained under virtual environment.
However, virtual reality technology in current many application fields there is also defect, i.e. trainee will be in systems
Either without voice interface or can only according in system voice message carry out linear operation, trainee can not be realized with being
One or more of system virtual portrait carries out voice interface, realizes non-linear voice interface.Moreover, present virtual reality technology
In interactive voice response system it is not intelligent enough, function is not comprehensive enough, is mainly reflected in linear operation, and there is also inconvenience on
Part.
Interactive voice of the present invention based on VR virtual classrooms puts question to system to be intended to virtual reality technology being applied to
The teaching skill training of normal student, the classroom interactions for being especially applicable to simulate in true ecological classroom put question to research.
The content of the invention
The present invention mainly solves the above-mentioned technical problem present in prior art, there is provided one kind is based on the virtual classes of VR
The interactive voice of hall puts question to system and method.The system and method is under VR virtual classroom environment, in simulation true class teaching
Teachers and students put question to link, by speech recognition system and powerful database, seamless voice can be carried out each other by allowing between teachers and students
Interaction, and interactive voice can realize it is non-linear.System is putd question to by the voice interface, can solve the problem that one-to-many between teachers and students
Or many-to-one voice is putd question to, i.e., after normal student puts question to, multiple the problem of virtually students can answer normal student at random and one by one, or
Normal student answers a question respectively or uniformly after the multiple virtual students of person put question to one by one.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
A kind of interactive voice based on VR virtual classrooms puts question to system, including：
Speech recognition system, the normal student for being obtained from sound pick-up, which is putd question in voice signal, extracts the first keyword；
Voiced keyword storehouse, its memory standard voice signal, for first keyword and storehouse Plays voice to be believed
The second keyword is matched corresponding to number, and after the match is successful, it is dynamic to produce signal that received pronunciation is transmitted into virtual student
Make；
Voice feedback module, for being answered according to received pronunciation generation dumb show corresponding to the enquirement voice
Problem.
Preferably, a kind of above-mentioned interactive voice based on VR virtual classrooms puts question to system, including：
Server, for preserving fixed data storehouse and dynamic data base in system of attending class, voiced keyword storehouse is preserved, is held
Corresponding each generic operation after row speech recognition, and result corresponding to output.
Preferably, a kind of above-mentioned interactive voice based on VR virtual classrooms puts question to system, is established not on the server
Virtual classroom scene and virtual student with subject, dynamic data base and fixed data storehouse；The dynamic data base memory storage religion
Teacher's asked questions and virtual number of student, the answerable answer of each student that described problem can be answered；The answer results
It is configurable.
Preferably, a kind of above-mentioned interactive voice based on VR virtual classrooms puts question to system, in addition to：
Virtual display module, for virtual portrait that will be paid attention to the class in virtual classroom system with VR pattern exposures to normal student.
Preferably, a kind of above-mentioned interactive voice based on VR virtual classrooms puts question to system, in addition to：
Monitoring system, for record normal student put question to voice signal and voice feedback module output signal and by its
Feed back to and monitor the counselor that normal student attends class.
A kind of interactive voice questioning method based on VR virtual classrooms, including：
Scene configuration step, for passing through human-computer interaction module scene set information, the scene information on the server
Information, number of student, question information, answer information including trained subject；The scene information is loaded into internal memory；
Step is greeted in interaction, courseware is imported into virtual classroom environment, the virtual reality classroom scene in the VR helmets, from
The greeting voice extraction keyword of normal student is simultaneously matched with the key word library in database on server, the match is successful
Afterwards, call the voice of school and answered according to the greeting of teacher；
Attend class simulation steps, the keyword to go wrong is identified in the speech signal that speech recognition system obtains from sound pick-up simultaneously
Matched with the key word library in database on server, after the match is successful, the voice corresponding to keyword is carried
Virtual student is given, virtual student produces dumb show and answered, and the answer of virtual student is converted into voice by system believes
Number output.
Preferably, above-mentioned a kind of interactive voice questioning method based on VR virtual classrooms, in addition to：
Random scene simulation steps, for triggering the bad performance set on the server action, simulated in virtual classroom
Bad action, after the voice signal that microphone pickup normal student prevents bad action, stop the simulation of bad action.
Preferably, above-mentioned a kind of interactive voice questioning method based on VR virtual classrooms, after class interactive step, server
Fixed data storehouse is called, after speech recognition system identifies and matches keyword after class, calls and takes leave of voice after class, normal student is just
Done with virtual student and prompt and take leave of the interactive voices such as greeting after class.
Preferably, above-mentioned a kind of interactive voice questioning method based on VR virtual classrooms, in the scene configuration step,
For some Key Points, student question link is set.
Preferably, above-mentioned a kind of interactive voice questioning method based on VR virtual classrooms, in the simulation steps of attending class,
After first learner answering questions, continue to allow other virtual students to be answered, when normal student thinks that this answer can be terminated
Afterwards, this enquirement is summarized and evaluated.
Therefore, the invention has the advantages that：The present invention can put question to system mould by the voice interface of VR virtual classrooms
Intend real scene of attending class, it is seamless, realize the speech exchange between normal student and student in virtual classroom without barrier, effectively carry
The effect of normal student's teaching skill in virtual classroom is risen, by the scene of virtual classroom, reproduces real classroom teaching environment,
Them are made quickly to grasp various teaching skills.
Brief description of the drawings
Fig. 1 is the structural representation that system is putd question to based on the voice interface of VR virtual classrooms；
Fig. 2 is enquirement and the answer information input figure that system is putd question to based on the voice interface of VR virtual classrooms；
Fig. 3 is the speech recognition figure that system is putd question to based on the voice interface of VR virtual classrooms；
Fig. 4 is the schematic flow sheet that system is putd question to based on the voice interface of VR virtual classrooms；
In Fig. 1,1. sound pick-ups；2. speech recognition system；3. voiced keyword storehouse；4. server；5. feed back voice；It is 6. empty
Intend student；7. monitoring system.
In Fig. 3,1. phonetic entries；2. preprocessing part；3. keyword extraction；4. database；5. speech recognition；6. result
Output.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment：
Interactive voice of the present invention based on VR virtual classrooms puts question to the example structure of system, as shown in figure 1, including pickup
Device 1；Speech recognition system 2；Voiced keyword storehouse 3；Server 4；Feed back voice 5；Virtual student 6；Monitoring system 7.
Sound pick-up 1, for into virtual classroom system, the phonetic entry of normal student's upper class hour to be carried out into language for system below
Sound identification is prepared.
Speech recognition system 2, for the sound of above microphone pickup to be identified, the keyword in voice is extracted,
And be converted to the type that server can perform.
Voiced keyword storehouse 3, for the keyword in the keyword extracted in speech recognition system and the storehouse to be carried out pair
Than, after contrasting successfully, the voice is forwarded to all virtual students to attend class, after student has voice signal input,
Corresponding dumb show can be produced, allows normal student to select it, the corresponding voice of corresponding keyword institute is then answered and puts question to.
Server 4, for preserving fixed data storehouse and dynamic data base in system of attending class, voiced keyword storehouse is preserved,
Corresponding each generic operation after execution speech recognition, and result corresponding to output.
Voice 5 is fed back, after keyword match success, the answer content of virtual student is entered with common speech form
Row output.
Virtual student 6, the virtual portrait paid attention to the class in virtual classroom system.
Monitoring system 7, it is convenient to watch normal student for the voice for feeding back phonological component output to be exported in a voice form
The teacher being trained monitors the situation of attending class of normal student.
Fig. 1 and Fig. 4 are referred to, the present invention is described in further detail below in conjunction with the accompanying drawings, to make art technology
Personnel can implement according to this with reference to specification word.
As shown in figure 1, system is putd question in the voice interface provided by the invention based on VR virtual classrooms, including：Server, its
Upper foundation has the virtual classroom scene of different subjects and virtual student, dynamic data base and fixed data storehouse；In dynamic data base
Establish the asked questions for having teacher and can answer the virtual number of student of this problem and what each student can answer answers
Case, answer can be arranged to correctly or incorrectly type according to the needs of teacher, while also set up multiple students and be directed to certain
The enquirement of a little Key Points, needs also exist for setting the number of student of enquirement, in order to avoid put question to undying go on.It is fixed
Establishing in database has fixed term of attending class between teachers and students, the classroom interactions for Faculty and Students' preceding at school and lower class hour.
The course of work of system is putd question in voice interface of the present invention based on VR virtual classrooms：
When normal student to be trained in virtual classroom, information and of subject oneself will be trained on the server first
Stranger's number is set, and then sets the problem of oneself is needed to student question in training, and each problem is set several
Individual student will be arranged such, be set as shown in Figure 2 the answer answered and they each answer, the enquirement of each problem
Put.Meanwhile student is might have to normal student's problem for some knowledge points in training, at this moment, normal student also needs to be directed to certain
A little Key Points, several students are selected to be putd question to for the knowledge point, answer now need not be configured, it is only necessary to
Set and put question to, because answer now is normal student, they can combine the table of student on classroom according to the enquirement of student
Now freely answered.In order to truly reduce classroom situation, on the server some students can be carried out with some bad tables
Existing setting, such as whispers to each other.After completing above-mentioned setting, " being randomly assigned " button is clicked in the system of server, allows institute
There is setting all to possess randomness.
The above-mentioned randomness completed on the server is set, and main purpose is exactly that can not allow the student of enquirement, answer
The student of raw and bad performance is some identical people forever, sets randomness, allows these actions are random to occur, can more allow
Teaching process in virtual classroom simulates real classroom instruction process.Finally also need to set speech recognition system on the server
System, the good keyword each putd question to of deployment；Need to carry out mark at the Key Points of courseware, as the mark for puing question to beginning
Point, operation so on the server are basically completed.
After completing all of above related setting work, procedure below occurs during teaching and training.Normal student puts on VR
After the helmet, student and the scene requirement oneself trained are selected, the courseware for needs of oneself attending class is imported into virtual classroom environment
In, the situation now seen in the VR helmets as real classroom situation, when hear attend class the tinkle of bells after, begin to
Class, now normal student can to virtual student greet be greeted, sound pick-up will be extracted the greeting voice of normal student,
Matched after extracting keyword with the key word library in database on server, after the match is successful, call fixed data storehouse
In interactive voice, at this moment server just call the voice of school, student will be answered according to the greeting of teacher.
After interaction is greeted, formal link of attending class has been put into, normal student attends class according to the courseware of oneself to student,
Just start upper class hour, student will not put question to, pedagogical with the appearance of the mark point on the explanation increase of content and courseware
Being born with for key content can put question to, and when normal student puts question to, voice signal is imported into virtually by sound pick-up first
In classroom system, speech recognition system will be handled according to system after the keyword that goes wrong of enquirement identification, then system is just
The keyword extracted can be matched with the key word library in database on server, after the match is successful, keyword institute
Corresponding voice, which is putd question to, will submit to virtual student, and the virtual student's can now set picks me normal student, teacher
Model, which is born with, can allow student to answer a question one by one, and the answer of virtual student is converted into voice signal by system, then passes through
Monitoring system will answer voice output；After first learner answering questions, normal student can also continue to allow other virtual students to enter
Row is answered, after normal student thinks to terminate this answer, it is possible to this enquirement is summarized and have rated, can also be divided
The other student to each answer evaluates.Equally, when the ground that normal student's explanation easily malfunctions to student's indigestion or student
Fang Shi, speech recognition system identify the keyword of difficult point, are then matched keyword with the key word library in database,
The problem of after the match is successful with regard in calling database on the difficult point knowledge, then trigger student and putd question to for the difficult point
Speech, same normal student can allow several students to carry out enquirement speech, pedagogical when normal student thinks that student question can be terminated
The enquirement time of student must be terminated at once by being born with, and then start to carry out explanation one by one for the whole issue of above student.
Due to attending class under virtual environment be simulation real classroom situation, when attend class enter certain period after,
The bad performance action set on server just random triggering, several students are just now had on virtual classroom bad
Performance is practised, when normal student sees this kind of situation, the performance of the student should be prevented with language at once, equally, microphone pickup is pedagogical
After this raw speech-like signal, speech recognition system is converted into the signal that virtual classroom can identify, when system identification to should
After student's name, the student just stopped bad learning performance.
Finally as the end attended class, server call fixed data storehouse again, just as the process for starting upper class hour,
After speech recognition system recognizes keyword, matched with the database on server, then call and take leave of voice, teacher after class
Model is born with to do with virtual student prompts and takes leave of the interactive voices such as greeting after class, and so far, training process terminates.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of interactive voice based on VR virtual classrooms puts question to system, it is characterised in that including：
Speech recognition system, the normal student for being obtained from sound pick-up, which is putd question in voice signal, extracts the first keyword；
Voiced keyword storehouse, its memory standard voice signal, for by first keyword and storehouse Plays voice signal pair
The second keyword answered is matched, and after the match is successful, received pronunciation is transmitted into virtual student to produce dumb show；
Voice feedback module, asked for producing dumb show according to the received pronunciation with answering corresponding to the enquirement voice
Topic.
2. a kind of interactive voice based on VR virtual classrooms according to claim 1 puts question to system, it is characterised in that bag
Include：
Server, for preserving fixed data storehouse and dynamic data base in system of attending class, voiced keyword storehouse is preserved, performs language
Corresponding each generic operation after sound identification, and result corresponding to output.
3. a kind of interactive voice based on VR virtual classrooms according to claim 2 puts question to system, it is characterised in that described
The virtual classroom scene of different subjects and virtual student, dynamic data base and fixed data storehouse are established on server；The dynamic
Databases store up teacher asking questions problem and can answer the virtual number of student of described problem, each student is answerable answers
Case；The answer results can configure.
4. a kind of interactive voice based on VR virtual classrooms according to claim 1 puts question to system, it is characterised in that also wraps
Include：
Virtual display module, for virtual portrait that will be paid attention to the class in virtual classroom system with VR pattern exposures to normal student.
5. a kind of interactive voice based on VR virtual classrooms according to claim 1 puts question to system, it is characterised in that also wraps
Include：
Monitoring system, for recording the enquirement voice signal of normal student and the output signal of voice feedback module and being fed back
The counselor to be attended class to monitoring normal student.
A kind of 6. interactive voice questioning method based on VR virtual classrooms, it is characterised in that including：
Scene configuration step, for being included on the server by human-computer interaction module scene set information, the scene information
Information, number of student, question information, the answer information of trained subject；The scene information is loaded into internal memory；
Step is greeted in interaction, courseware is imported into virtual classroom environment, the virtual reality classroom scene in the VR helmets, from normal school
Raw greeting voice extracts keyword and matched with the key word library in database on server, after the match is successful, adjusts
Voice with the school and greeting according to teacher is answered；
Attend class simulation steps, identified in the speech signal that speech recognition system obtains from sound pick-up the keyword that goes wrong and with clothes
Key word library on business device in database is matched, and after the match is successful, the voice corresponding to keyword is submitted to
Virtual student, virtual student produce dumb show and simultaneously answered, and it is defeated that by system the answer of virtual student is converted into voice signal
Go out.
7. a kind of interactive voice questioning method based on VR virtual classrooms according to claim 6, it is characterised in that also wrap
Include：
Random scene simulation steps, for triggering the bad performance set on the server action, simulated in virtual classroom bad
Action, after the voice signal that microphone pickup normal student prevents bad action, stop the simulation of bad action.
A kind of 8. interactive voice questioning method based on VR virtual classrooms according to claim 6, it is characterised in that
Interactive step after class, server calls fixed data storehouse, after speech recognition system identifies and matches keyword after class, adjust
With farewell voice after class, normal student just does with virtual student and prompts and take leave of the interactive voices such as greeting after class.
A kind of 9. interactive voice questioning method based on VR virtual classrooms according to claim 6, it is characterised in that
In the scene configuration step, student question link is set for some Key Points.
A kind of 10. interactive voice questioning method based on VR virtual classrooms according to claim 7, it is characterised in that institute
State in simulation steps of attending class, after first learner answering questions, continue to allow other virtual students to be answered, when normal student thinks
After this answer can be terminated, this enquirement is summarized and evaluated.
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