CN116483309A - Integrated broadcaster control management system of teaching - Google Patents

Integrated broadcaster control management system of teaching Download PDF

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Publication number
CN116483309A
CN116483309A CN202310454171.0A CN202310454171A CN116483309A CN 116483309 A CN116483309 A CN 116483309A CN 202310454171 A CN202310454171 A CN 202310454171A CN 116483309 A CN116483309 A CN 116483309A
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broadcaster
volume
teacher
coefficient
output volume
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吴敏
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Zhongshan Haoshi Electronics Co ltd
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Zhongshan Haoshi Electronics Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • 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
    • G10L15/26—Speech to text systems
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/003—Changing voice quality, e.g. pitch or formants
    • G10L21/007—Changing voice quality, e.g. pitch or formants characterised by the process used
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
    • G10L25/60—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention belongs to the field of integrated broadcaster control, and particularly discloses a teaching integrated broadcaster control management system, which comprises: extracting the position and the volume corresponding to the mobile microphone voice input source at the teacher end, extracting environmental parameters in the classroom, analyzing the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher, further regulating and controlling the output volume of each broadcaster corresponding to the teacher, optimizing the teaching sound effect of the teacher, and effectively solving the adverse effect of overhigh or overlow output volume of the broadcaster on the hearing of students; by analyzing text content of a teacher mobile microphone voice input source, a target student terminal fixed microphone is automatically opened, so that the teaching quality and working efficiency of the teacher are improved, and meanwhile, the classroom interaction between students and the teacher is improved; based on actual operation parameters of each broadcaster in the operation state, the sound quality distortion coefficients of each broadcaster are analyzed, equipment faults are found and eliminated in time, and teaching is guaranteed to be carried out smoothly.

Description

Integrated broadcaster control management system of teaching
Technical Field
The invention belongs to the field of integrated broadcaster control, and relates to a teaching integrated broadcaster control management system.
Background
With the continuous development of modern education technology, multimedia teaching broadcasting rooms fully utilizing computer technology, multimedia technology and network technology are more and more. The propagation of teacher's sound in the teaching directly influences students' effect of listening to class, therefore is especially important to the design of teaching integrated broadcaster control system. The integrated broadcaster control management system for teaching is a teaching device for education places such as schools, training institutions and the like. The system can realize the functions of inputting and outputting multi-path audio, sound effect processing, volume control and the like, and has important effects in improving teaching quality and efficiency.
The existing teaching broadcasting room is provided with a broadcasting device with amplified power behind a classroom, and the teaching sound of a teacher can be amplified, but a plurality of defects exist, and the teaching broadcasting room is specifically characterized in that: (1) The output volume of the existing broadcaster is not regulated and controlled according to the position and volume of a teacher input source, if the position of the teacher input source is far away from students or the volume of the teacher input source is small, hearing of partial students is possibly affected, the output volume of the broadcaster is too high or too low to cause adverse effect on hearing, the teacher needs to manually regulate the output volume of a loudspeaker, the working intensity and the complexity degree of the loudspeaker are increased, and the working efficiency is reduced.
(2) The existing broadcaster does not set an automatic opening matching function for a student end fixed microphone according to text content of a teacher end mobile microphone input source, a teacher needs to inquire whether the volume of the student end fixed microphone is normal or whether the student end fixed microphone is required to be opened or closed in a questioning link, the fact that the student is far away or the volume is small can also seriously influence the teacher to hear the sound of the student, and accordingly communication quality is reduced, a lot of precious teaching time and resources can be wasted, and therefore working pressure of the teacher can be effectively reduced by the automatic opening matching function, and teaching efficiency and teaching quality are improved.
(3) The existing broadcaster does not monitor actual operation parameters in an operation state in real time, and further analyzes sound quality distortion coefficients of each broadcaster. If there is a large difference in tone quality performance between each broadcaster, the hearing experience and the trust of students can be affected. The distortion coefficient is too large, which may cause audio deformation and affect hearing understanding and content transmission, so that equipment maintenance is required to be performed on the broadcaster with the too large tone quality distortion coefficient in time, and sound effect quality and stability brought by the broadcaster are ensured.
Disclosure of Invention
In view of this, in order to solve the problems set forth in the above background art, a teaching integrated broadcaster control management system is proposed.
The aim of the invention can be achieved by the following technical scheme: the invention provides a teaching integrated broadcaster control management system, comprising: and the equipment matching module is used for carrying out matching connection on the teacher's mobile microphone and each broadcaster and obtaining the position and volume corresponding to the voice input source of the teacher's mobile microphone.
And the teacher voice volume control module is used for analyzing the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher according to the environmental parameters in the classroom, and further regulating and controlling the output volume of each broadcaster corresponding to the teacher.
The voice matching module is used for identifying text content of a teacher-side mobile microphone voice input source, extracting keywords from the text content, opening a target student-side fixed microphone corresponding to the keywords, and carrying out matching connection with each broadcaster device.
And the student voice volume control module is used for acquiring the position and the volume corresponding to the voice input source of the target student end fixed wheat, analyzing the comprehensive influence coefficient of the output volume of the target student end fixed wheat corresponding to each broadcaster, and further regulating and controlling the output volume of the target student end fixed wheat corresponding to each broadcaster.
The equipment operation state monitoring module is used for acquiring actual operation parameters under the operation state of each broadcaster, wherein the actual operation parameters comprise a dust amount evaluation coefficient, a volume accuracy coefficient and a tone effect uniformity coefficient of the mask net.
And the equipment tone quality evaluation module is used for analyzing tone quality distortion coefficients of each broadcaster and further maintaining the broadcaster with serious tone quality distortion.
The database is used for storing standard volume of a teacher-side mobile microphone voice input source required by students for listening lessons and the position of a student-side fixed microphone of each student name, a carrier of the broadcaster is a sound amplifying unit, the sound amplifying unit is placed on a lamp body of a classroom, the specific type of the sound amplifying unit is a loudspeaker, the sound amplifying direction of the loudspeaker is upward, and the position of the sound amplifying unit on the lamp body can be fixed according to actual needs; the required number of loudspeaker units are installed according to different classroom requirements, so that each seat in the classroom space can be enabled to hear the sound played by the broadcaster in an equalizing manner.
In a preferred embodiment of the present invention, the analyzing the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher specifically includes: by analysis of formulasObtaining the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher, wherein phi is expressed as the environment influence coefficient of the voice output volume of the broadcaster, eta j The sound volume influence coefficient of the teacher-side mobile microphone input source corresponding to the j-th broadcaster is represented, j is the number of the broadcaster, j=1, 2, and b, gamma 1 、γ 2 The environment influence coefficient of the voice output volume of the broadcaster and the duty ratio weight factor corresponding to the volume influence coefficient of the mobile microphone input source at the teacher end corresponding to the broadcaster are respectively expressed as a preset, and e is a natural constant.
Capturing signals of the teacher mobile microphone voice input source to obtain the corresponding volume of the teacher mobile microphone voice input source, and recording the volume as K.
From delta j ＝ε j * K, obtaining the standard output volume corresponding to each broadcaster, and then adjusting the output volume of each broadcaster corresponding to the teacher to the standard output volume.
In a preferred embodiment of the present invention, the specific analysis method of the volume influence coefficient of the teacher-side mobile microphone input source corresponding to each broadcaster is as follows: and positioning the teacher mobile microphone voice input source in real time to obtain the position distance between the teacher mobile microphone voice input source and each broadcaster.
Calculating the volume influence coefficient eta of the teacher-side mobile microphone voice input source corresponding to each broadcaster j ，Wherein S is j The method comprises the steps of representing the position distance between a teacher-side mobile microphone voice input source and a j-th broadcaster, j is the number of the broadcaster, j=1, 2, b, S 'represents the standard position distance between the teacher-side mobile microphone voice input source and the broadcaster, K' represents the standard volume of the teacher-side mobile microphone voice input source, delta S and delta K represent allowable error values corresponding to preset position distance and volume respectively, and beta is represented by the standard volume of the teacher-side mobile microphone voice input source 1 、β 2 The influence corresponding to the preset position distance and volume is evaluated as the duty ratio weight, +.>And the volume influence estimation correction factor corresponding to the preset teacher mobile microphone voice input source is represented.
In a preferred embodiment of the present invention, the environmental impact coefficient of the volume of the audio output of the player is specifically: setting each monitoring point in a classroom, using an environment monitor to monitor the environment parameters of each monitoring point in real time, wherein the environment parameters comprise temperature and humidity, and acquiring the corresponding temperature I of each monitoring point i And humidity M i I is the monitoring point number, i=1, 2,..q.
From analytical formulasObtaining an environmental influence coefficient of the voice output volume of the broadcaster, wherein I is represented as a proper temperature required by the sound transmission in the classroom, M is represented as a proper humidity required by the sound transmission in the classroom, deltaI and DeltaM are respectively represented as allowable error values corresponding to the preset proper temperature required by the sound transmission in the classroom and the proper humidity, alpha 1 、α 2 The weight ratio factors are respectively expressed as the influence weight corresponding to the proper temperature and the proper humidity required by sound transmission in the preset classroom, and q is expressed as the number of monitoring points.
In a preferred embodiment of the present invention, the opening the target student end fixed wheat corresponding to the keyword is specifically: and identifying text content of a teacher-side mobile microphone voice input source to obtain keywords of the text content, matching the keywords with the names of the students, extracting the positions of the student-side fixed microphones corresponding to the successfully matched student names from a database if the keywords are successfully matched with the names of the students, opening the student-side fixed microphones corresponding to the successfully matched student names, marking the student-side fixed microphones as target student-side fixed microphones, and connecting the target student-side fixed microphones with each broadcaster device.
In a preferred embodiment of the present invention, the specific manner of adjusting the output volume of the fixed microphone corresponding to the target student end of each broadcaster is: and according to the analysis mode of the comprehensive influence coefficient of the output volume of the teacher corresponding to each broadcaster, the comprehensive influence coefficient of the output volume of the fixed wheat of the target student corresponding to each broadcaster is obtained through similar analysis.
And then according to the regulation and control mode of the output volume of the teacher corresponding to each broadcaster, the fixed wheat output volume of the target student corresponding to each broadcaster is regulated and controlled in the same way.
In a preferred embodiment of the present invention, the specific acquisition modes of the dust amount evaluation coefficient, the volume accuracy coefficient and the tone effect uniformity coefficient of the mask net are as follows: the method comprises the steps of utilizing a camera to collect images of the mask nets of each broadcaster, obtaining the total number of grids of the mask nets of each broadcaster and the number of grids containing dust from the images, and further carrying out dust detection on the grids containing dust to obtain the dust content of the grids containing dust.
From analytical formulasObtaining the dust amount evaluation coefficient of the corresponding mask net of each broadcaster, wherein D j 、D j ' total number of grids of j-th player mask net and grid number containing dust, respectively, B jf The f dust amount of the f dust-containing grid, denoted as the j-th player mask net, f denoted as the number of the dust-containing grid, f=1, 2 1 、τ 2 Respectively representing the preset number of grids containing dust for the mask net of the broadcaster and the duty ratio weight factors of the dust content of the grids containing dust.
The actual output volume of each broadcaster corresponding to each time point in the set time period is obtained, the actual output volume of each broadcaster corresponding to each time point is differed from the standard output volume of the corresponding time point, the difference between the actual output volume of each broadcaster corresponding to each time point and the standard output volume of the corresponding time point is obtained, and the difference is recorded as the volume difference of each time point.
From analytical formulasObtaining the corresponding volume precision coefficient of each broadcaster, wherein theta jr Denoted as the volume difference value, theta, of the jth broadcaster corresponding to the jth time point 0 The allowable error value expressed as a preset time point volume difference value, r is expressed as a time point number, r=1, 2,..d, d is the number of time points, and ζ is expressed as a floating deviation factor corresponding to the preset time point volume difference value.
And comparing the volume difference values of the corresponding time points of the broadcasting devices with each other, and screening out the maximum value and the minimum value in the volume difference values of the corresponding time points of the broadcasting devices.
From analytical formulasObtaining the corresponding tone uniformity coefficient of each broadcaster, wherein theta j max 、θ j min Respectively representing the maximum value and the minimum value in the volume difference value of the j-th player corresponding to the time point, wherein delta theta represents the allowable error value of the maximum value and the minimum value in the volume difference value of the preset time point, and rho represents the floating deviation factor corresponding to the preset tone uniformity coefficient.
In a preferred embodiment of the present invention, the analyzing the sound quality distortion coefficients of each player is specifically: the actual operation parameters of each broadcaster in the operation state comprise a dust amount evaluation coefficient, a sound volume precision coefficient and a tone effect uniformity coefficient of the mask net.
Calculating the tone quality distortion coefficient of each broadcaster Wherein lambda is represented as an evaluation correction factor corresponding to a preset sound quality distortion coefficient of the broadcaster, c1, c2 and c3 are respectively represented as a preset dust amount evaluation coefficient of a mask net, a preset sound volume precision coefficient and a preset duty ratio weight factor corresponding to a tone effect uniformity coefficient, F j 、W j 、H j The dust amount evaluation coefficient, the volume accuracy coefficient and the tone effect uniformity coefficient corresponding to the j-th broadcaster are respectively represented as the dust amount evaluation coefficient, the volume accuracy coefficient and the tone effect uniformity coefficient corresponding to the mask net, and the F, W, H are respectively represented as the preset thresholds of the dust amount evaluation coefficient, the volume accuracy coefficient and the tone effect uniformity coefficient corresponding to the mask net.
Comparing the sound quality distortion coefficient of each player with a preset sound quality distortion coefficient threshold of the player, and if the sound quality distortion coefficient of a certain player is larger than the preset sound quality distortion coefficient threshold of the player, judging that the player is a player with serious sound quality distortion, and further maintaining the player with serious sound quality distortion.
Compared with the prior art, the invention has the following beneficial effects: (1) Based on the position and the volume corresponding to the mobile microphone voice input source at the teacher end and the environmental parameters in the classroom, the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher is analyzed, so that the output volume of each broadcaster corresponding to the teacher is automatically regulated, the teaching sound effect of the teacher can be optimized by automatically regulating the output volume, the hearing comfort of students is effectively improved, the consistency of the class listening effect of the students at each position in the classroom is ensured, and the concentration and understanding effect of the students in the class listening are improved.
(2) According to the invention, the text content of the mobile microphone voice input source at the teacher end is analyzed, the fixed microphone at the target student end is automatically opened and is matched and connected with each broadcaster device, so that convenience is brought to teacher teaching, the manpower cost of the teacher is reduced, the teaching quality and working efficiency of the teacher are improved, and meanwhile, the classroom interactivity of students and the teacher is improved.
(3) The invention regulates and controls the output volume of the fixed microphone at the end of each broadcaster corresponding to the target student, so that the voice of each broadcaster is clearer and brighter, and other students can better understand and understand the answer content. In addition, adjust sound can also help controlling classroom noise, improve and listen to class efficiency and study experience.
(4) The invention analyzes the sound quality distortion coefficient of each broadcaster based on the actual operation parameters of each broadcaster in the operation state, further maintains the broadcaster with serious sound quality distortion, and ensures the comprehensive statistics of data by analyzing the dust quantity evaluation coefficient, the sound volume precision coefficient and the tone effect uniformity coefficient of the mask net, thereby providing scientific basis for equipment maintenance and updating, finding and eliminating equipment faults in time and ensuring teaching to be carried out smoothly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the connection of the modules of the system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a teaching integrated broadcaster control management system, which includes: the device comprises a device matching module, a teacher voice volume control module, a voice matching module, a student voice volume control module, a device running state monitoring module, a device tone quality evaluation module and a database.
The device operation state monitoring module is respectively connected with the teacher voice volume evaluation module, the student voice volume control module and the device tone quality evaluation module, and the database is respectively connected with the teacher voice volume evaluation module, the voice matching module and the device operation state monitoring module.
The equipment matching module is used for carrying out matching connection on the teacher's mobile microphone and each broadcaster and obtaining the position and volume corresponding to the voice input source of the teacher's mobile microphone.
The teacher voice volume control module is used for analyzing the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher according to the environmental parameters in the classroom, and further regulating and controlling the output volume of each broadcaster corresponding to the teacher.
As a preferable scheme, the analysis of the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher is specifically as follows: by analysis of formulasObtaining the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher, wherein phi is expressed as the environment influence coefficient of the voice output volume of the broadcaster, eta j The sound volume influence coefficient of the teacher-side mobile microphone input source corresponding to the j-th broadcaster is represented, j is the number of the broadcaster, j=1, 2, and b, gamma 1 、γ 2 The environment influence coefficient of the voice output volume of the broadcaster and the duty ratio weight factor corresponding to the volume influence coefficient of the mobile microphone input source at the teacher end corresponding to the broadcaster are respectively expressed as a preset, and e is a natural constant.
Capturing signals of the teacher mobile microphone voice input source to obtain the corresponding volume of the teacher mobile microphone voice input source, and recording the volume as K.
From delta j ＝ε j * K, obtaining the standard output volume corresponding to each broadcaster, and then adjusting the output volume of each broadcaster corresponding to the teacher to the standard output volume.
The players are directly fixed on the back of the classroom lamp, and the classroom lamp is uniformly distributed in the classroom.
Further, the specific analysis mode of the volume influence coefficient of the teacher mobile microphone input source corresponding to each broadcaster is as follows: and positioning the teacher mobile microphone voice input source in real time to obtain the position distance between the teacher mobile microphone voice input source and each broadcaster.
And extracting the standard position distance between the teacher mobile microphone voice input source and the broadcaster required by the students to listen to the lessons from the database, and recording the standard position distance as S'.
Calculating the volume influence coefficient eta of the teacher-side mobile microphone voice input source corresponding to each broadcaster j ，Wherein S is j The distance between the teacher mobile microphone voice input source and the j-th broadcaster is represented, j is the number of the broadcaster, j=1, 2 1 、β 2 The influence corresponding to the preset position distance and volume is evaluated as the duty ratio weight, +.>And the volume influence estimation correction factor corresponding to the preset teacher mobile microphone voice input source is represented.
The standard volume acquisition mode of the teacher mobile microphone input source is as follows: the volume of a target classroom is obtained, the volume of the target classroom is compared with the proper volume of the teacher-side mobile microphone voice input source corresponding to each classroom volume in the database, the proper volume of the teacher-side mobile microphone voice input source required by students to listen to lessons in the target classroom is screened out, and the proper volume is recorded as the standard volume of the teacher-side mobile microphone voice input source.
Further, the environment influence coefficient of the voice output volume of the broadcaster is specifically:
each monitoring point is arranged in the classroom, and the ring is usedThe environmental monitor monitors environmental parameters of all monitoring points in real time, wherein the environmental parameters comprise temperature and humidity, and the corresponding temperature I of all the monitoring points is obtained i And humidity M i I is the monitoring point number, i=1, 2, …, q.
From analytical formulasObtaining an environmental influence coefficient of the voice output volume of the broadcaster, wherein I is represented as a proper temperature required by the sound transmission in the classroom, M is represented as a proper humidity required by the sound transmission in the classroom, deltaI and DeltaM are respectively represented as allowable error values corresponding to the preset proper temperature required by the sound transmission in the classroom and the proper humidity, alpha 1 、α 2 The weight ratio factors are respectively expressed as the influence weight corresponding to the proper temperature and the proper humidity required by sound transmission in the preset classroom, and q is expressed as the number of monitoring points.
The method for acquiring the proper temperature required by sound transmission in the classroom is as follows: and (3) acquiring the volume of the target classroom, comparing the volume of the target classroom with the proper temperature required by sound transmission corresponding to each classroom volume in the database, and screening to obtain the proper temperature required by sound transmission in the classroom under the volume of the target classroom.
And similarly, obtaining the proper humidity required by sound transmission in the classroom.
Based on the position and the volume corresponding to the mobile microphone voice input source at the teacher end and the environmental parameters in the classroom, the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher is analyzed, so that the output volume of each broadcaster corresponding to the teacher is automatically regulated, the teaching sound effect of the teacher can be optimized by automatically regulating the output volume, the hearing comfort of students is effectively improved, the consistency of the class listening effect of the students at each position in the classroom is ensured, and the concentration and understanding effect of the students in the class listening are improved.
The voice matching module is used for identifying text content of a teacher-side mobile microphone voice input source, extracting keywords from the text content, opening a target student-side fixed microphone corresponding to the keywords, and carrying out matching connection with each broadcaster device.
As a preferable scheme, the opening of the target student end fixed wheat corresponding to the keyword specifically includes: and identifying text content of a teacher-side mobile microphone voice input source to obtain keywords of the text content, matching the keywords with the names of the students, extracting the positions of the student-side fixed microphones corresponding to the successfully matched student names from a database if the keywords are successfully matched with the names of the students, opening the student-side fixed microphones corresponding to the successfully matched student names, marking the student-side fixed microphones as target student-side fixed microphones, and connecting the target student-side fixed microphones with each broadcaster device.
After the student speaking corresponding to the fixed microphone at the end of the target student finishes, the fixed microphone at the end of the target student is automatically disconnected from each broadcaster device.
According to the invention, the text content of the mobile microphone voice input source at the teacher end is analyzed, the fixed microphone at the target student end is automatically opened and is matched and connected with each broadcaster device, so that convenience is brought to teacher teaching, the manpower cost of the teacher is reduced, the teaching quality and working efficiency of the teacher are improved, and meanwhile, the classroom interactivity of students and the teacher is improved.
The student voice volume control module is used for acquiring the position and the volume corresponding to the voice input source of the target student end fixed wheat, analyzing the comprehensive influence coefficient of the output volume of the target student end fixed wheat corresponding to each broadcaster, and further regulating and controlling the output volume of the target student end fixed wheat corresponding to each broadcaster.
As a preferable scheme, the specific mode for regulating and controlling the output volume of the fixed wheat at the corresponding target student end of each broadcaster is as follows: and according to the analysis mode of the comprehensive influence coefficient of the output volume of the teacher corresponding to each broadcaster, the comprehensive influence coefficient of the output volume of the fixed wheat of the target student corresponding to each broadcaster is obtained through similar analysis.
And then according to the regulation and control mode of the output volume of the teacher corresponding to each broadcaster, the fixed wheat output volume of the target student corresponding to each broadcaster is regulated and controlled in the same way.
According to the invention, the output volume of the fixed microphone at the end of each broadcaster corresponding to the target student is regulated and controlled, so that the voice of each broadcaster is clearer and brighter, other students can better understand and understand the answer content, and the class listening efficiency and learning experience are improved. After the student finishes speaking, the fixed wheat at the end of the target student is automatically disconnected with each broadcaster, and the measures can effectively reduce environmental noise and create a clearer and concentrated learning atmosphere. In addition, automatically disconnecting the broadcaster device can also save power and extend device life.
The equipment operation state monitoring module is used for acquiring actual operation parameters under the operation state of each broadcaster, wherein the actual operation parameters comprise a dust amount evaluation coefficient, a volume accuracy coefficient and an audio effect uniformity coefficient of a mask net.
As a preferable scheme, the specific acquisition modes of the dust amount evaluation coefficient, the volume accuracy coefficient and the tone effect uniformity coefficient of the mask net are as follows: the method comprises the steps of utilizing a camera to collect images of the mask nets of each broadcaster, obtaining the total number of grids of the mask nets of each broadcaster and the number of grids containing dust from the images, and further carrying out dust detection on the grids containing dust to obtain the dust content of the grids containing dust.
From analytical formulasObtaining the dust amount evaluation coefficient of the corresponding mask net of each broadcaster, wherein D j 、D j ' total number of grids of j-th player mask net and grid number containing dust, respectively, B jf The f dust amount of the f dust-containing grid, denoted as the j-th player mask grid, f denoted as the number of the dust-containing grid, f=1, 2,. G, B denoted as a preset player mask grid dust amount allowance, τ 1 、τ 2 Respectively representing the number of ash-containing grids of the preset broadcaster mask net and the duty ratio weight factors of ash content of ash-containing grids.
The actual output volume of each broadcaster corresponding to each time point in the set time period is obtained, the actual output volume of each broadcaster corresponding to each time point is differed from the standard output volume of the corresponding time point, the difference between the actual output volume of each broadcaster corresponding to each time point and the standard output volume of the corresponding time point is obtained, and the difference is recorded as the volume difference of each time point.
From analytical formulasObtaining the corresponding volume precision coefficient of each broadcaster, wherein theta jr Denoted as the volume difference value, theta, of the jth broadcaster corresponding to the jth time point 0 The allowable error value expressed as a preset time point volume difference value, r is expressed as a time point number, r=1, 2,..d, d is the number of time points, and ζ is expressed as a floating deviation factor corresponding to the preset time point volume difference value.
And comparing the volume difference values of the corresponding time points of the broadcasting devices with each other, and screening out the maximum value and the minimum value in the volume difference values of the corresponding time points of the broadcasting devices.
From analytical formulasObtaining the corresponding tone uniformity coefficient of each broadcaster, wherein theta j max 、θ j min Respectively representing the maximum value and the minimum value in the volume difference value of the j-th player corresponding to the time point, wherein delta theta represents the allowable error value of the maximum value and the minimum value in the volume difference value of the preset time point, and rho represents the floating deviation factor corresponding to the preset tone uniformity coefficient.
The dust amount of each dust-containing grid is obtained by the following steps: and carrying out gray processing on the acquired images to obtain gray values of grids corresponding to the mask nets of the broadcasters, comparing the gray values of the grids with gray value ranges of gray values of the gray values corresponding to the gray levels of the gray-containing grids in the database, if the gray value of a certain grid is in the gray value range of the gray level of the certain gray level, counting the number of all the gray-containing grids, and further obtaining the gray level of each gray-containing grid.
The actual output volume of each time point is obtained by monitoring the corresponding sound level instrument arranged on the back of each lamp in real time. The standard output volume corresponding to the time point is obtained by regulating and controlling the output volume of the teacher corresponding to each broadcaster and the output volume of the fixed wheat at the end of the target student in real time.
The equipment tone quality evaluation module is used for analyzing tone quality distortion coefficients of each broadcaster and further maintaining the broadcaster with serious tone quality distortion.
As a preferable scheme, the analyzing the sound quality distortion coefficients of each broadcaster specifically includes: calculating the tone quality distortion coefficient of each broadcaster Wherein lambda is represented as an evaluation correction factor corresponding to a preset sound quality distortion coefficient of the broadcaster, and c1, c2 and c3 are respectively represented as a preset dust amount evaluation coefficient of a mask net, a preset sound volume precision coefficient and a preset duty ratio weight factor corresponding to a tone effect uniformity coefficient F, W 、 H is respectively expressed as the preset threshold value of the dust amount evaluation coefficient, the sound volume precision coefficient and the tone effect uniformity coefficient of the corresponding mask net of the broadcaster.
Comparing the sound quality distortion coefficient of each player with a preset sound quality distortion coefficient threshold of the player, and if the sound quality distortion coefficient of a certain player is larger than the preset sound quality distortion coefficient threshold of the player, judging that the player is a player with serious sound quality distortion, and further maintaining the player with serious sound quality distortion.
The invention analyzes the sound quality distortion coefficient of each broadcaster based on the actual operation parameters of each broadcaster in the operation state, further maintains the broadcaster with serious sound quality distortion, and ensures the comprehensive statistics of data by analyzing the dust quantity evaluation coefficient, the sound volume precision coefficient and the tone effect uniformity coefficient of the mask net, thereby providing scientific basis for equipment maintenance and updating, finding and eliminating equipment faults in time and ensuring teaching to be carried out smoothly.
The database is used for storing standard volume of a teacher end mobile microphone voice input source required by students for listening lessons and student end fixed microphone positions of the names of the students, a carrier of the broadcaster is a sound amplifying unit, the sound amplifying unit is placed on a lamp body of a classroom, specific types of the sound amplifying unit are loudspeakers, the sound amplifying direction of the loudspeakers is upward, and the sound amplifying unit can be fixed at the positions of the lamp body according to actual needs; the required number of loudspeaker units are installed according to different classroom requirements, so that each seat in the classroom space can be enabled to hear the sound played by the broadcaster in an equalizing manner.
The foregoing is merely illustrative and explanatory of the principles of this invention, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the principles of this invention or beyond the scope of this invention as defined in the claims.

Claims (8)

1. The utility model provides a teaching integration broadcaster control management system which characterized in that: the system comprises:
the equipment matching module is used for carrying out matching connection on the teacher's mobile microphone and each broadcaster and obtaining the position and volume corresponding to the voice input source of the teacher's mobile microphone;
the teacher voice volume control module is used for analyzing the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher according to the environmental parameters in the classroom, and further regulating and controlling the output volume of each broadcaster corresponding to the teacher;
the voice matching module is used for identifying text content of a mobile microphone voice input source at a teacher end, extracting keywords from the text content, opening a fixed microphone at a target student end corresponding to the keywords, and carrying out matching connection with each broadcaster device;
the student voice volume control module is used for acquiring the position and the volume corresponding to the voice input source of the fixed microphone at the target student end, analyzing the comprehensive influence coefficient of the output volume of the fixed microphone at the target student end corresponding to each broadcaster, and further regulating and controlling the output volume of the fixed microphone at the target student end corresponding to each broadcaster;
the equipment operation state monitoring module is used for acquiring actual operation parameters under the operation state of each broadcaster, wherein the actual operation parameters comprise a dust amount evaluation coefficient, a volume accuracy coefficient and a tone effect uniformity coefficient of a mask net;
the equipment tone quality evaluation module is used for analyzing tone quality distortion coefficients of each broadcaster so as to maintain the broadcaster with serious tone quality distortion;
the database is used for storing the standard position distance between the teacher end mobile wheat voice input source and the broadcaster required by students to listen to lessons and the student end fixed wheat positions of the names of the students.
2. The teaching integrated broadcaster control management system of claim 1, wherein: the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher is specifically:
by analysis of formulasObtaining the comprehensive influence coefficient of the output volume of each broadcaster corresponding to the teacher, wherein phi is expressed as the environment influence coefficient of the voice output volume of the broadcaster, eta j The sound volume influence coefficient of the teacher-side mobile microphone input source corresponding to the j-th broadcaster is represented, j is the number of the broadcaster, j=1, 2, and b, gamma 1 、γ 2 The method comprises the steps that the environment influence coefficient of the voice output volume of a preset broadcaster and the duty ratio weight factor corresponding to the volume influence coefficient of a teacher-side mobile microphone input source corresponding to the broadcaster are respectively expressed, and e is a natural constant;
capturing signals of a teacher mobile microphone voice input source to obtain the corresponding volume of the teacher mobile microphone voice input source, and recording the volume as K;
from delta j ＝ε j * K, obtaining the standard output volume corresponding to each broadcaster, and then adjusting the output volume of each broadcaster corresponding to the teacher to the standard output volume.
3. The teaching integrated broadcaster control management system of claim 2, wherein: the specific analysis mode of the volume influence coefficient of the teacher-side mobile microphone voice input source corresponding to each broadcaster is as follows:
the method comprises the steps of positioning a teacher mobile microphone voice input source in real time, and obtaining the position distance between the teacher mobile microphone voice input source and each broadcaster;
extracting the standard position distance between a teacher mobile microphone voice input source and a broadcaster required by students for class listening from a database, and recording the standard position distance as S';
calculating the volume influence coefficient eta of the teacher-side mobile microphone voice input source corresponding to each broadcaster j ，
Wherein S is j The position distance between the teacher mobile microphone input source and the j-th broadcaster is represented, K' is represented as the standard volume of the teacher mobile microphone input source, and DeltaS and DeltaK are respectively represented as the allowable error values corresponding to the preset position distance and volume, beta 1 、β 2 The impact assessment duty cycle weights respectively expressed as the preset position distance and the corresponding sound volume,and the volume influence estimation correction factor corresponding to the preset teacher mobile microphone voice input source is represented.
4. The teaching integrated broadcaster control management system of claim 2, wherein: the environment influence coefficient of the voice output volume of the broadcaster is specifically:
setting each monitoring point in a classroom, using an environment monitor to monitor the environment parameters of each monitoring point in real time, wherein the environment parameters comprise temperature and humidity, and acquiring the corresponding temperature I of each monitoring point i And humidity M i I is the number of the monitoring point, i=1, 2, q;
from analytical formulasThe environment influence coefficient of the voice output volume of the broadcaster is obtained, wherein I is represented as the proper temperature required by the sound transmission in the classroom, and M is represented as the proper humidity required by the sound transmission in the classroomDeltaI, deltaM are respectively expressed as the allowable error value alpha corresponding to the proper temperature and proper humidity required by the sound transmission in the preset classroom 1 、α 2 The weight ratio factors are respectively expressed as the influence weight corresponding to the proper temperature and the proper humidity required by sound transmission in the preset classroom, and q is expressed as the number of monitoring points.
5. The teaching integrated broadcaster control management system of claim 1, wherein: the opening of the target student end fixed wheat corresponding to the keyword is specifically as follows:
and identifying text content of a teacher-side mobile microphone voice input source to obtain keywords of the text content, matching the keywords with the names of the students, extracting the positions of the student-side fixed microphones corresponding to the successfully matched student names from a database if the keywords are successfully matched with the names of the students, opening the student-side fixed microphones corresponding to the successfully matched student names, marking the student-side fixed microphones as target student-side fixed microphones, and connecting the target student-side fixed microphones with each broadcaster device.
6. The teaching integrated broadcaster control management system of claim 2, wherein: the specific mode for regulating and controlling the output volume of the fixed wheat at the end of each broadcaster corresponding to the target student is as follows:
according to the analysis mode of the comprehensive influence coefficient of the output volume of the teacher corresponding to each broadcaster, the comprehensive influence coefficient of the fixed wheat output volume of the target student corresponding to each broadcaster is obtained through similar analysis;
and then according to the regulation and control mode of the output volume of the teacher corresponding to each broadcaster, the fixed wheat output volume of the target student corresponding to each broadcaster is regulated and controlled in the same way.
7. The teaching integrated broadcaster control management system of claim 1, wherein: the specific acquisition modes of the dust amount evaluation coefficient, the volume accuracy coefficient and the tone effect uniformity coefficient of the mask net are as follows:
the method comprises the steps that a camera is used for collecting images of the mask nets of each broadcaster, the total number of grids of the mask nets of each broadcaster and the number of grids containing dust are obtained from the images, dust detection is carried out on the grids containing dust, and the dust content of each grid containing dust is obtained;
from analytical formulasObtaining the dust amount evaluation coefficient of the corresponding mask net of each broadcaster, wherein D j 、D j ' total number of grids of j-th player mask net and grid number containing dust, respectively, B jf The f dust content of the f dust-containing grid, denoted as j-th player mask grid, f denoted as the number of the dust-containing grid, f=1, 2, g, B denoted as a preset player mask grid dust content allowance, τ 1 、τ 2 Respectively representing the number of ash-containing grids of a preset broadcaster mask net and the duty ratio weight factors of ash content of ash-containing grids;
obtaining actual output volume of each broadcaster corresponding to each time point in a set time period, and making a difference between the actual output volume of each broadcaster corresponding to each time point and the standard output volume of the corresponding time point to obtain a difference between the actual output volume of each broadcaster corresponding to each time point and the standard output volume of the corresponding time point, and recording the difference as a volume difference of each time point;
from analytical formulasObtaining the corresponding volume precision coefficient of each broadcaster, wherein theta jr Denoted as the volume difference value, theta, of the jth broadcaster corresponding to the jth time point 0 The allowable error value expressed as a preset time point volume difference value, r is expressed as a time point number, r=1, 2, d, d is the number of time points, and ζ is expressed as a floating deviation factor corresponding to the preset time point volume difference value;
comparing the volume difference values of the corresponding time points of the broadcasting devices with each other, and screening out the maximum value and the minimum value in the volume difference values of the corresponding time points of the broadcasting devices;
by dividing intoAnalytical formulaObtaining the corresponding tone uniformity coefficient of each player, wherein +.>Respectively representing the maximum value and the minimum value in the volume difference value of the j-th player corresponding to the time point, wherein delta theta represents the allowable error value of the maximum value and the minimum value in the volume difference value of the preset time point, and rho represents the floating deviation factor corresponding to the preset tone uniformity coefficient.
8. The teaching integrated broadcaster control management system of claim 7, wherein: the voice quality distortion coefficients of the various broadcasters are analyzed specifically as follows:
calculating the tone quality distortion coefficient of each broadcaster Wherein lambda is represented as an evaluation correction factor corresponding to a preset sound quality distortion coefficient of the broadcaster, c1, c2 and c3 are respectively represented as a dust amount evaluation coefficient of a preset mask net, a sound volume precision coefficient and a duty ratio weight factor corresponding to a tone effect uniformity coefficient, and F, W, H is respectively represented as a dust amount evaluation coefficient of the preset broadcaster corresponding to the mask net, a sound volume precision coefficient and a threshold value of the tone effect uniformity coefficient;
comparing the sound quality distortion coefficient of each player with a preset sound quality distortion coefficient threshold of the player, and if the sound quality distortion coefficient of a certain player is larger than the preset sound quality distortion coefficient threshold of the player, judging that the player is a player with serious sound quality distortion, and further maintaining the player with serious sound quality distortion.
CN202310454171.0A 2023-04-25 2023-04-25 Integrated broadcaster control management system of teaching Pending CN116483309A (en)

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