A teaching integrated broadcasting device control and management system

Abstract

The present invention belongs to the field of integrated loudspeaker control, and specifically discloses a teaching integrated loudspeaker control and management system, which includes: extracting the position and volume corresponding to the voice input source of a mobile microphone on the teacher's side, extracting the environmental parameters in the classroom, analyzing the comprehensive influence coefficient of the teacher's output volume corresponding to each loudspeaker, and then regulating the teacher's output volume corresponding to each loudspeaker, thereby optimizing the teacher's teaching sound effect, thereby effectively solving the adverse effect of the loudspeaker output volume being too high or too low on the student's hearing; by analyzing the text content of the voice input source of the mobile microphone on the teacher's side, the fixed microphone on the target student's side is automatically turned on, thereby improving the teacher's teaching quality and work efficiency, and at the same time improving the classroom interactivity between students and teachers; based on the actual operating parameters of each loudspeaker under the operating state, the sound quality distortion coefficient of each loudspeaker is analyzed, and equipment failures are discovered and eliminated in time to ensure smooth teaching.

Description

Technical Field

[0001] The invention belongs to the field of integrated loudspeaker control and relates to a teaching integrated loudspeaker control management system. Background Art

[0002] With the continuous development of modern educational technology, there are more and more multimedia teaching studios that make full use of computer technology, multimedia technology, and network technology. The spread of teachers' voices in teaching directly affects students' listening effect, so the design of teaching integrated speaker control system is particularly important. Teaching integrated speaker control management system is a teaching device used in educational places such as schools and training institutions. The system can realize the functions of multi-channel audio input and output, sound effect processing and volume control, and plays an important role in improving teaching quality and efficiency.

[0003] Most existing teaching studios have a loudspeaker with amplifying power installed at the back of the classroom. Although this can amplify the teacher's teaching voice, it still has many shortcomings, which are specifically reflected in the following aspects: (1) The existing loudspeaker does not adjust the output volume of the loudspeaker according to the location and volume of the teacher's input source. If the teacher's input source is far away from the students or the teacher's input source volume is low, it may cause some students' hearing to be affected. Too high or too low output volume of the loudspeaker will also have an adverse effect on hearing. Teachers need to manually adjust the speaker output volume, which increases their workload and tediousness and reduces their work efficiency.

[0004] (2) Existing broadcasters do not have an automatic matching function for the fixed microphones on the student side according to the text content of the voice input source of the mobile microphone on the teacher side. During the question-and-answer session, teachers need to ask students whether their volume is normal or ask them to turn their microphones on or off. The students’ long distance or low volume will also seriously affect the teacher’s ability to hear the students’ voices, thereby reducing the quality of communication. This will waste a lot of precious teaching time and resources. Therefore, the automatic matching function can effectively reduce the teacher’s work pressure and improve teaching efficiency and quality.

[0005] (3) Existing speakers do not monitor the actual operating parameters in real time, and then analyze the sound quality distortion coefficient of each speaker. If there are large differences in the sound quality performance between speakers, it will affect students' auditory experience and trust. Too large a distortion coefficient may cause audio deformation, affecting listening comprehension and content delivery. Therefore, it is necessary to promptly maintain the equipment of speakers with too large a distortion coefficient to ensure the sound quality and stability of the speakers. Summary of the invention

[0006] In view of this, in order to solve the problems raised in the above background technology, a teaching integrated broadcaster control and management system is now proposed.

[0007] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides a teaching integrated loudspeaker control and management system, including: a device matching module, which is used to match and connect the teacher's mobile microphone with each loudspeaker, and obtain the position and volume corresponding to the voice input source of the teacher's mobile microphone.

[0008] The teacher's voice volume control module is used to analyze the comprehensive influence coefficient of the teacher's output volume of each loudspeaker according to the environmental parameters in the classroom, and then adjust the teacher's output volume of each loudspeaker corresponding to the teacher.

[0009] The voice matching module is used to identify the text content of the voice input source of the teacher's mobile microphone, extract keywords from the text content, open the target student-side fixed microphone corresponding to the keyword, and match and connect it with each broadcasting device.

[0010] The student voice volume control module is used to obtain the position and volume corresponding to the fixed microphone voice input source of the target student end, analyze the comprehensive influence coefficient of each loudspeaker corresponding to the fixed microphone output volume of the target student end, and then adjust the fixed microphone output volume of each loudspeaker corresponding to the target student end.

[0011] The equipment operation status monitoring module is used to obtain the actual operation parameters of each speaker under the operation status. The actual operation parameters include the dust amount assessment coefficient of the mask net, the volume accuracy coefficient and the tone effect uniformity coefficient.

[0012] The equipment sound quality assessment module is used to analyze the sound quality distortion coefficient of each loudspeaker and then perform maintenance on loudspeakers with serious sound quality distortion.

[0013] The database is used to store the standard volume of the teacher's mobile microphone voice input source required for students to listen to the class, as well as the fixed microphone position of the student's end for each student's name. The carrier of the loudspeaker is the loudspeaker unit, which is placed on the lamp body of the classroom. The specific type of the loudspeaker unit is a speaker. The sound amplification direction of the speaker is upward, and the position of the loudspeaker on the lamp body can be fixed according to actual needs; the required number of loudspeaker units are installed according to different classroom needs, so that each seat in the classroom space can hear the sound broadcast by the loudspeaker evenly.

[0014] In a preferred embodiment of the present invention, the comprehensive influence coefficient of each speaker output volume corresponding to the teacher is analyzed as follows: The comprehensive influence coefficient of each loudspeaker corresponding to the teacher's output volume is obtained, where φ represents the environmental influence coefficient of the loudspeaker voice output volume, η j It is represented as the volume influence coefficient of the teacher's mobile microphone voice input source corresponding to the j-th speaker, j is the number of the speaker, j = 1, 2, ..., b, γ 1 , γ 2They are respectively represented as the environmental impact coefficient of the preset announcer voice output volume and the proportion weight factor corresponding to the volume impact coefficient of the teacher's mobile microphone voice input source corresponding to the announcer, and e is a natural constant.

[0015] The signal of the voice input source of the mobile microphone on the teacher's side is captured, and the corresponding volume of the voice input source of the mobile microphone on the teacher's side is obtained, which is recorded as K.

[0016] By δ j =ε j *K obtains the standard output volume corresponding to each loudspeaker, and then adjusts the teacher output volume corresponding to each loudspeaker to the standard output volume.

[0017] In a preferred embodiment of the present invention, the specific analysis method of the volume influence coefficient of the teacher-side mobile microphone voice input source corresponding to each loudspeaker is: real-time positioning of the teacher-side mobile microphone voice input source is performed to obtain the position distance between the teacher-side mobile microphone voice input source and each loudspeaker.

[0018] Calculate the volume influence coefficient η of the teacher's mobile microphone voice input source corresponding to each announcer j , Where S j It is represented by the distance between the teacher's mobile microphone voice input source and the jth speaker, j is the speaker number, j = 1, 2, ..., b, S' is represented by the standard distance between the teacher's mobile microphone voice input source and the speaker, K' is represented by the standard volume of the teacher's mobile microphone voice input source, ΔS and ΔK are the allowable error values ​​corresponding to the preset distance and volume, respectively, β 1 , β 2 They are respectively represented by the impact assessment weights corresponding to the preset location distance and volume. It is represented by the volume impact assessment correction factor corresponding to the preset teacher-side mobile microphone voice input source.

[0019] In a preferred embodiment of the present invention, the environmental impact coefficient of the voice output volume of the announcer is specifically as follows: each monitoring point is set in the classroom, and the environmental parameters of each monitoring point are monitored in real time using an environmental monitoring instrument, and the environmental parameters include temperature and humidity, and the temperature corresponding to each monitoring point is obtained. i and humidity i , i is the monitoring point number, i=1,2,...,q.

[0020] By analytical formula The environmental impact coefficient of the voice output volume of the loudspeaker is obtained, where I represents the suitable temperature required for sound propagation in the classroom, M represents the suitable humidity required for sound propagation in the classroom, ΔI and ΔM represent the allowable error values ​​corresponding to the preset suitable temperature and suitable humidity required for sound propagation in the classroom, respectively, and α 1 , α2 They respectively represent the influence weight ratio factors corresponding to the suitable temperature and humidity required for sound propagation in the preset classroom, and q represents the number of monitoring points.

[0021] In a preferred embodiment of the present invention, the method of opening the target student-side fixed microphone corresponding to the keyword is specifically as follows: the text content of the voice input source of the teacher-side mobile microphone is identified to obtain each keyword of the text content, and each keyword is matched with each student name. If a keyword is successfully matched with a student name, the position of the student-side fixed microphone corresponding to the successfully matched student name is extracted from the database, and the student-side fixed microphone corresponding to the successfully matched student name is opened and recorded as the target student-side fixed microphone, and the target student-side fixed microphone is connected to each broadcasting device.

[0022] In a preferred embodiment of the present invention, the specific method of regulating the fixed microphone output volume of each loudspeaker corresponding to the target student end is: according to the analysis method of the comprehensive influence coefficient of the teacher output volume of each loudspeaker corresponding to the teacher, the comprehensive influence coefficient of the fixed microphone output volume of each loudspeaker corresponding to the target student end is obtained by similar analysis.

[0023] Then, according to the control method of each loudspeaker corresponding to the teacher's output volume, the output volume of the fixed microphone of each loudspeaker corresponding to the target student end is controlled in the same way.

[0024] In a preferred embodiment of the present invention, the dust amount assessment coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net are specifically obtained by using a camera to capture images of each speaker mask net, obtaining the total number of grids and the number of dust-containing grids of each speaker mask net from the image, and then performing dust detection on the dust-containing grids to obtain the dust amount of each dust-containing grid.

[0025] By analytical formula Get the dust volume evaluation coefficient of each speaker corresponding to the mask net, where D j , D j 'represents the total number of grids and the number of grids containing dust in the jth speaker mask network, B jf It is represented by the dust amount of the fth dust-containing grid of the jth speaker mask net, f represents the number of the dust-containing grid, f = 1, 2, ..., g, B represents the preset allowable value of the dust amount of the speaker mask net, τ 1 , τ 2 They respectively represent the preset weight factors of the number of dusty grids in the speaker mask net and the proportion of dust in the dusty grids.

[0026] Get the actual output volume of each speaker at each time point within the set time period, subtract the actual output volume of each speaker at each time point from the standard output volume at the corresponding time point, and get the difference between the actual output volume of each speaker at each time point and the standard output volume at the corresponding time point, and record it as the volume difference at each time point.

[0027] By analytical formula Get the volume accuracy coefficient of each speaker, where θ jr It is expressed as the volume difference of the j-th speaker at the r-th time point, θ 0 It represents the allowable error value of the volume difference at the preset time point, r represents the time point number, r=1,2,...,d, d is the number of time points, ξ represents the floating deviation factor corresponding to the volume difference at the preset time point.

[0028] The volume differences of each speaker at each time point are compared with each other, and the maximum and minimum values ​​of the volume differences of each speaker at each time point are screened out.

[0029] By analytical formula Get the pitch uniformity coefficient of each speaker, where θ j max ,θ j min They respectively represent the maximum and minimum volume differences of the j-th speaker at the corresponding time points, Δθ represents the allowable error value of the maximum and minimum volume differences at the preset time points, and ρ represents the floating deviation factor corresponding to the preset pitch uniformity coefficient.

[0030] In a preferred embodiment of the present invention, the analysis of the sound quality distortion coefficient of each speaker is specifically as follows: the actual operating parameters of each speaker under the operating state include the dust amount evaluation coefficient of the mask net, the volume accuracy coefficient and the tone effect uniformity coefficient.

[0031] Calculate the sound quality distortion coefficient of each speaker Where λ represents the evaluation correction factor corresponding to the preset sound quality distortion coefficient of the broadcaster, c1, c2, c3 represent the weighting factors corresponding to the preset dust volume evaluation coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net, respectively, and F j , W j , H j They respectively represent the dust amount assessment coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net corresponding to the j-th speaker, and F, W, and H respectively represent the threshold values ​​of the dust amount assessment coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net corresponding to the preset speaker.

[0032] The sound quality distortion coefficient of each speaker is compared with the preset speaker sound quality distortion coefficient threshold. If the sound quality distortion coefficient of a speaker is greater than the preset speaker sound quality distortion coefficient threshold, the speaker is determined to be a speaker with severe sound quality distortion, and then the speaker with severe sound quality distortion is maintained.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention analyzes the comprehensive influence coefficient of the teacher's output volume corresponding to each loudspeaker based on the position and volume corresponding to the voice input source of the mobile microphone on the teacher's side and the environmental parameters in the classroom, and then automatically adjusts the teacher's output volume corresponding to each loudspeaker. The automatic adjustment of the output volume can optimize the teacher's teaching sound effect, thereby effectively improving the students' listening comfort, ensuring the consistency of the listening effect of students at different positions in the classroom, and improving the students' listening concentration and comprehension effect.

[0034] (2) The present invention analyzes the text content of the voice input source of the mobile microphone on the teacher's side, automatically turns on the fixed microphone on the target student's side, and matches and connects it with various broadcasting devices, which brings convenience to teachers' teaching, reduces teachers' labor costs, improves teachers' teaching quality and work efficiency, and at the same time improves the classroom interactivity between students and teachers.

[0035] (3) The present invention adjusts the output volume of the fixed microphone of each speaker corresponding to the target student end, which can make the voice clearer and brighter, so that other students can better understand the answer content. In addition, adjusting the sound can also help control classroom noise and improve listening efficiency and learning experience.

[0036] (4) The present invention analyzes the sound quality distortion coefficient of each loudspeaker based on the actual operating parameters under the operating status of each loudspeaker, and then maintains the loudspeaker with serious sound quality distortion. By analyzing the dust quantity assessment coefficient of the mask net, the volume accuracy coefficient and the tone effect uniformity coefficient, the comprehensive statistics of the data are guaranteed, providing a scientific basis for equipment maintenance and updating, timely discovering and eliminating equipment failures, and ensuring smooth teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0038] Figure 1 It is a schematic diagram of the connection of each module of the system of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1 As shown, the present invention provides a teaching integrated broadcaster control and management system, which includes: a device matching module, a teacher voice volume control module, a voice matching module, a student voice volume control module, a device operation status monitoring module, a device sound quality evaluation module and a database.

[0041] In the above-mentioned device matching module, the teacher voice volume evaluation module is connected to the voice matching module, the voice matching module is connected to the student voice volume control module, the device operation status monitoring module is respectively connected to the teacher voice volume evaluation module, the student voice volume control module and the device sound quality evaluation module, and the database is respectively connected to the teacher voice volume evaluation module, the voice matching module and the device operation status monitoring module.

[0042] The device matching module is used to match and connect the teacher's mobile microphone with each speaker, and obtain the position and volume corresponding to the voice input source of the teacher's mobile microphone.

[0043] The teacher voice volume control module is used to analyze the comprehensive influence coefficient of the teacher output volume corresponding to each loudspeaker according to the classroom environment parameters, and then adjust the teacher output volume corresponding to each loudspeaker.

[0044] As a preferred solution, the comprehensive influence coefficient of each speaker output volume corresponding to the teacher is analyzed as follows: The comprehensive influence coefficient of each loudspeaker corresponding to the teacher's output volume is obtained, where φ represents the environmental influence coefficient of the loudspeaker voice output volume, η j It is represented as the volume influence coefficient of the teacher's mobile microphone voice input source corresponding to the j-th speaker, j is the number of the speaker, j = 1, 2, ..., b, γ 1 , γ 2 They are respectively represented as the environmental impact coefficient of the preset announcer voice output volume and the proportion weight factor corresponding to the volume impact coefficient of the teacher's mobile microphone voice input source corresponding to the announcer, and e is a natural constant.

[0045] The signal of the voice input source of the mobile microphone on the teacher's side is captured, and the corresponding volume of the voice input source of the mobile microphone on the teacher's side is obtained, which is recorded as K.

[0046] By δ j=ε j *K obtains the standard output volume corresponding to each loudspeaker, and then adjusts the teacher output volume corresponding to each loudspeaker to the standard output volume.

[0047] It should be noted that the speakers are directly fixed on the back of classroom lamps, and the classroom lamps are evenly distributed in the classroom.

[0048] Furthermore, the specific analysis method of the volume influence coefficient of the teacher-side mobile microphone voice input source corresponding to each loudspeaker is: real-time positioning of the teacher-side mobile microphone voice input source is performed to obtain the position distance between the teacher-side mobile microphone voice input source and each loudspeaker.

[0049] The standard position distance between the teacher's mobile microphone voice input source and the loudspeaker required for students to listen to the class is extracted from the database and recorded as S'.

[0050] Calculate the volume influence coefficient η of the teacher's mobile microphone voice input source corresponding to each announcer j , Where S j It is represented by the distance between the teacher's mobile microphone voice input source and the jth speaker, j is the speaker number, j = 1, 2, ..., b, K' is represented by the standard volume of the teacher's mobile microphone voice input source, ΔS and ΔK are the preset position distance and volume corresponding allowable error values, β 1 , β 2 They are respectively represented by the impact assessment weights corresponding to the preset location distance and volume. It is represented by the volume impact assessment correction factor corresponding to the preset teacher-side mobile microphone voice input source.

[0051] It should be noted that the standard volume of the teacher-side mobile microphone voice input source is obtained in the following way: obtain the volume of the target classroom, compare the target classroom volume with the appropriate volume of the teacher-side mobile microphone voice input source corresponding to the volume of each classroom in the database, screen out the appropriate volume of the teacher-side mobile microphone voice input source required for students to listen to the class under the target classroom volume, and record it as the standard volume of the teacher-side mobile microphone voice input source.

[0052] Furthermore, the environmental impact coefficient of the voice output volume of the loudspeaker is specifically:

[0053] Each monitoring point is set up in the classroom, and the environmental parameters of each monitoring point are monitored in real time using an environmental monitor. The environmental parameters include temperature and humidity, and the corresponding temperature of each monitoring point is obtained. i and humidity M i , i is the monitoring point number, i=1,2,…,q.

[0054] By analytical formula The environmental impact coefficient of the voice output volume of the loudspeaker is obtained, where I represents the suitable temperature required for sound propagation in the classroom, M represents the suitable humidity required for sound propagation in the classroom, ΔI and ΔM represent the allowable error values ​​corresponding to the preset suitable temperature and suitable humidity required for sound propagation in the classroom, respectively, and α 1 , α 2 They respectively represent the influence weight ratio factors corresponding to the suitable temperature and humidity required for sound propagation in the preset classroom, and q represents the number of monitoring points.

[0055] It should be noted that the method for obtaining the suitable temperature required for sound propagation in the classroom is: obtain the volume of the target classroom, compare the target classroom volume with the suitable temperature required for sound propagation corresponding to the volumes of each classroom in the database, and screen out the suitable temperature required for sound propagation in the classroom under the target classroom volume.

[0056] Similarly, the appropriate humidity required for sound propagation in the classroom is obtained.

[0057] The present invention analyzes the comprehensive influence coefficient of the teacher's output volume corresponding to each loudspeaker based on the position and volume corresponding to the voice input source of the mobile microphone on the teacher's end and the environmental parameters in the classroom, and then automatically adjusts the teacher's output volume corresponding to each loudspeaker. The automatic adjustment of the output volume can optimize the teacher's teaching sound effect, thereby effectively improving the students' hearing comfort, ensuring the consistency of the listening effect of students at various positions in the classroom, and improving the students' listening concentration and comprehension effect.

[0058] The voice matching module is used to identify the text content of the voice input source of the teacher's mobile microphone, extract keywords from the text content, open the target student's fixed microphone corresponding to the keyword, and match and connect it with each broadcasting device.

[0059] As a preferred solution, the method of opening the target student-side fixed microphone corresponding to the keyword is specifically as follows: the text content of the voice input source of the teacher-side mobile microphone is identified to obtain the keywords of the text content, and each keyword is matched with each student name. If a keyword is successfully matched with a student name, the position of the student-side fixed microphone corresponding to the successfully matched student name is extracted from the database, and the student-side fixed microphone corresponding to the successfully matched student name is opened and recorded as the target student-side fixed microphone, and the target student-side fixed microphone is connected to each broadcasting device.

[0060] It should be noted that after the student corresponding to the fixed microphone at the target student end finishes speaking, the fixed microphone at the target student end is automatically disconnected from each broadcasting device.

[0061] The present invention analyzes the text content of the voice input source of the mobile microphone on the teacher's side, automatically turns on the fixed microphone on the target student's side, and matches and connects it with various broadcasting devices, which brings convenience to teachers' teaching, reduces teachers' labor costs, improves teachers' teaching quality and work efficiency, and improves the classroom interactivity between students and teachers.

[0062] The student voice volume control module is used to obtain the position and volume corresponding to the fixed microphone voice input source of the target student end, analyze the comprehensive influence coefficient of each loudspeaker corresponding to the fixed microphone output volume of the target student end, and then adjust the fixed microphone output volume of each loudspeaker corresponding to the target student end.

[0063] As a preferred solution, the specific method of regulating the fixed microphone output volume of each loudspeaker corresponding to the target student end is: according to the analysis method of the comprehensive influence coefficient of the teacher output volume of each loudspeaker corresponding to the teacher, the comprehensive influence coefficient of the fixed microphone output volume of each loudspeaker corresponding to the target student end is obtained by similar analysis.

[0064] Then, according to the control method of each loudspeaker corresponding to the teacher's output volume, the output volume of the fixed microphone of each loudspeaker corresponding to the target student end is controlled in the same way.

[0065] The present invention adjusts the output volume of the fixed microphone of each target student end corresponding to each speaker, which can make the voice clearer and brighter, so that other students can better understand the answer content, improve the efficiency of listening to the class and the learning experience. After the student finishes speaking, the fixed microphone of the target student end is automatically disconnected from each speaker device. This measure can effectively reduce environmental noise and noise, and create a clearer and more focused learning atmosphere. In addition, automatically disconnecting the speaker device can also save electricity and extend the life of the device.

[0066] The equipment operation status monitoring module is used to obtain the actual operation parameters of each speaker under the operation status, and the actual operation parameters include the dust amount evaluation coefficient of the mask net, the volume accuracy coefficient and the tone effect uniformity coefficient.

[0067] As a preferred solution, the dust amount assessment coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net are specifically obtained by using a camera to capture images of each speaker mask net, obtaining the total number of grids and the number of dusty grids of each speaker mask net from the image, and then performing dust detection on the dusty grids to obtain the dust amount of each dusty grid.

[0068] By analytical formula Get the dust volume evaluation coefficient of each speaker corresponding to the mask net, where D j , D j 'represents the total number of grids and the number of grids containing dust in the jth speaker mask network, B jfIt is represented by the dust amount of the fth dust-containing grid of the jth speaker mask net, f represents the number of the dust-containing grid, f = 1, 2, ..., g, B represents the preset allowable value of the dust amount of the speaker mask net, τ 1 , τ 2 They are respectively represented as the weight factors of the number of dusty grids in the preset speaker mask mesh and the proportion of dust in the dusty grids.

[0069] Get the actual output volume of each speaker at each time point within the set time period, subtract the actual output volume of each speaker at each time point from the standard output volume at the corresponding time point, and get the difference between the actual output volume of each speaker at each time point and the standard output volume at the corresponding time point, and record it as the volume difference at each time point.

[0070] By analytical formula Get the volume accuracy coefficient of each speaker, where θ jr It is expressed as the volume difference of the j-th speaker at the r-th time point, θ 0 It represents the allowable error value of the volume difference at the preset time point, r represents the time point number, r=1,2,...,d, d is the number of time points, ξ represents the floating deviation factor corresponding to the volume difference at the preset time point.

[0071] The volume differences of each speaker at each time point are compared with each other, and the maximum and minimum values ​​of the volume differences of each speaker at each time point are screened out.

[0072] By analytical formula Get the pitch uniformity coefficient of each speaker, where θ j max ,θ j min They respectively represent the maximum and minimum volume differences of the j-th speaker at the corresponding time points, Δθ represents the allowable error value of the maximum and minimum volume differences at the preset time points, and ρ represents the floating deviation factor corresponding to the preset pitch uniformity coefficient.

[0073] It should be noted that the method for obtaining the dust amount of each dust-containing grid is: grayscale processing is performed on the collected image to obtain the grayscale value of each grid corresponding to each speaker mask network, and the grayscale value of each grid is compared with the grayscale value range of each dust amount corresponding to the dust-containing grid in the database. If the grayscale value of a grid is within the grayscale value range of a certain dust amount, then the grid is a dusty grid, and the number of all dust-containing grids is counted to obtain the dust amount of each dust-containing grid.

[0074] The actual output volume at each time point is obtained by real-time monitoring of the corresponding sound level meter installed on the back of each lamp. The standard output volume at the corresponding time point is obtained by real-time adjustment of the output volume of the teacher corresponding to each speaker and the output volume of the fixed microphone at the target student end.

[0075] The equipment sound quality evaluation module is used to analyze the sound quality distortion coefficient of each loudspeaker, and then maintain the loudspeaker with serious sound quality distortion.

[0076] As a preferred solution, the analysis of the sound quality distortion coefficient of each loudspeaker is specifically as follows: calculating the sound quality distortion coefficient of each loudspeaker Where λ represents the evaluation correction factor corresponding to the preset sound quality distortion coefficient of the broadcaster, c1, c2, c3 represent the weighting factors corresponding to the preset dust volume evaluation coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net, respectively, and F, W 、 H represents the threshold values ​​of the dust quantity evaluation coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the preset speaker corresponding to the mask net.

[0077] The sound quality distortion coefficient of each speaker is compared with the preset speaker sound quality distortion coefficient threshold. If the sound quality distortion coefficient of a speaker is greater than the preset speaker sound quality distortion coefficient threshold, the speaker is determined to be a speaker with severe sound quality distortion, and then the speaker with severe sound quality distortion is maintained.

[0078] The present invention analyzes the sound quality distortion coefficient of each loudspeaker based on the actual operating parameters under the operating state, and then maintains the loudspeaker with serious sound quality distortion. By analyzing the dust amount assessment coefficient of the mask net, the volume accuracy coefficient and the tone effect uniformity coefficient, the comprehensive statistics of the data are guaranteed, which provides a scientific basis for equipment maintenance and updating, timely discovers and eliminates equipment failures, and ensures smooth teaching.

[0079] The database is used to store the standard volume of the teacher's mobile microphone voice input source required for students to listen to the class, as well as the fixed microphone position of the student's end for each student's name. The carrier of the loudspeaker is a sound amplification unit, which is placed on the lamp body of the classroom. The specific type of the sound amplification unit is a speaker, and the sound amplification direction of the speaker is upward. The position of the sound amplification unit on the lamp body can be fixed according to actual needs; the required number of sound amplification units are installed according to different classroom requirements, so that each seat in the classroom space can hear the sound broadcast by the loudspeaker in a balanced manner.

[0080] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A teaching integrated broadcaster control and management system, characterized by: The system includes: The device matching module is used to match and connect the teacher's mobile microphone with each speaker, and obtain the position and volume corresponding to the voice input source of the teacher's mobile microphone; The teacher voice volume control module is used to analyze the comprehensive influence coefficient of the teacher output volume of each speaker according to the classroom environment parameters, and then adjust the teacher output volume of each speaker; The voice matching module is used to identify the text content of the voice input source of the teacher's mobile microphone, extract keywords from the text content, open the target student's fixed microphone corresponding to the keyword, and match and connect it with each broadcasting device; The student voice volume control module is used to obtain the position and volume of the fixed microphone voice input source corresponding to the target student end, analyze the comprehensive influence coefficient of each speaker corresponding to the fixed microphone output volume of the target student end, and then adjust the fixed microphone output volume of each speaker corresponding to the target student end; The equipment operation status monitoring module is used to obtain the actual operation parameters of each speaker under the operation status, including the dust volume evaluation coefficient of the mask net, the volume accuracy coefficient and the tone effect uniformity coefficient; Equipment sound quality assessment module, used to analyze the sound quality distortion coefficient of each loudspeaker, and then perform maintenance on loudspeakers with serious sound quality distortion; A database for storing the standard position distance between the teacher's mobile microphone voice input source and the announcer required for students to listen to the class, and the student's fixed microphone position for each student's name; The comprehensive influence coefficient of each speaker output volume corresponding to the teacher is specifically: By analyzing the formula The comprehensive influence coefficient of each loudspeaker corresponding to the teacher's output volume is obtained, where φ represents the environmental influence coefficient of the loudspeaker voice output volume, η j It is represented by the volume influence coefficient of the teacher-side mobile microphone voice input source corresponding to the j-th loudspeaker, j is the number of the loudspeaker, j=1,2,...,b, γ1 and γ2 respectively represent the environmental influence coefficient of the preset loudspeaker voice output volume and the proportion weight factor corresponding to the volume influence coefficient of the teacher-side mobile microphone voice input source corresponding to the loudspeaker, and e is a natural constant; Capture the signal of the voice input source of the mobile microphone on the teacher's end, and obtain the corresponding volume of the voice input source of the mobile microphone on the teacher's end, which is recorded as K; By δ j =ε j *K obtains the standard output volume corresponding to each loudspeaker, and then adjusts the teacher output volume corresponding to each loudspeaker to the standard output volume.

2. The teaching integrated speaker control and management system according to claim 1, characterized in that: The specific analysis method of the volume influence coefficient of the teacher's mobile microphone voice input source corresponding to the announcer is: Real-time positioning of the voice input source of the teacher's mobile microphone, and obtaining the position distance between the voice input source of the teacher's mobile microphone and each loudspeaker; Extract the standard position distance between the teacher's mobile microphone voice input source and the loudspeaker required for students to listen to the class from the database, and record it as S'; Calculate the volume influence coefficient η of the teacher's mobile microphone voice input source corresponding to each announcer j , Where S j It is represented by the distance between the teacher's mobile microphone voice input source and the jth speaker, K' is represented by the standard volume of the teacher's mobile microphone voice input source, ΔS and ΔK are the allowable error values ​​corresponding to the preset position distance and volume, β1 and β2 are the impact assessment weights corresponding to the preset position distance and volume, respectively. It is represented by the volume impact assessment correction factor corresponding to the preset teacher-side mobile microphone voice input source.

3. The teaching integrated speaker control and management system according to claim 1 is characterized by: The environmental impact coefficient of the voice output volume of the loudspeaker is specifically: Each monitoring point is set up in the classroom, and the environmental parameters of each monitoring point are monitored in real time using an environmental monitor. The environmental parameters include temperature and humidity, and the corresponding temperature of each monitoring point is obtained. i and humidity i , i is the monitoring point number, i=1,2,...,q; By analytical formula The environmental impact coefficient of the voice output volume of the announcer is obtained, where I represents the suitable temperature required for sound propagation in the classroom, M represents the suitable humidity required for sound propagation in the classroom, ΔI and ΔM respectively represent the allowable error values ​​corresponding to the preset suitable temperature and suitable humidity required for sound propagation in the classroom, α1 and α2 respectively represent the influence weight proportion factors corresponding to the preset suitable temperature and suitable humidity required for sound propagation in the classroom, and q represents the number of monitoring points.

4. The teaching integrated speaker control and management system according to claim 1, characterized in that: The specific steps of opening the fixed microphone of the target student terminal corresponding to the keyword are as follows: The text content of the voice input source of the mobile microphone on the teacher's side is recognized to obtain the keywords of the text content, and each keyword is matched with each student's name. If a keyword is successfully matched with a student's name, the position of the student's fixed microphone corresponding to the matched student's name is extracted from the database, and the student's fixed microphone corresponding to the matched student's name is opened and recorded as the target student's fixed microphone, and the target student's fixed microphone is connected to each broadcasting device.

5. The teaching integrated speaker control and management system according to claim 1, characterized in that: The specific method of regulating the output volume of the fixed microphone of each loudspeaker corresponding to the target student terminal is as follows: According to the analysis method of the comprehensive influence coefficient of each loudspeaker corresponding to the teacher's output volume, the comprehensive influence coefficient of each loudspeaker corresponding to the output volume of the fixed microphone of the target student end is obtained by similar analysis; Then, according to the control method of each loudspeaker corresponding to the teacher's output volume, the output volume of the fixed microphone of each loudspeaker corresponding to the target student end is controlled in the same way.

6. The teaching integrated speaker control and management system according to claim 1, characterized in that: The dust volume evaluation coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net are specifically obtained as follows: The camera is used to collect images of each speaker mask net, and the total number of grids and the number of dusty grids of each speaker mask net are obtained from the images, and then the dusty grids are detected to obtain the dust amount of each dusty grid; By analytical formula Get the dust volume evaluation coefficient of each speaker corresponding to the mask net, where D j , D j 'represents the total number of grids and the number of grids containing dust in the jth speaker mask network, B jf It is represented as the dust amount of the fth dust-containing grid of the jth speaker mask net, f is represented as the number of the dust-containing grid, f=1, 2, ..., g, B is represented as the preset allowable value of the dust amount of the speaker mask net, τ1 and τ2 are represented as the preset number of dust-containing grids of the speaker mask net and the weight factor of the proportion of the dust amount of the dust-containing grids, respectively; Obtain the actual output volume of each speaker at each time point within the set time period, and subtract the actual output volume of each speaker at each time point from the standard output volume at the corresponding time point to obtain the difference between the actual output volume of each speaker at each time point and the standard output volume at the corresponding time point, and record it as the volume difference at each time point; By analytical formula Get the volume accuracy coefficient of each speaker, where θ jr It is represented as the volume difference of the j-th speaker corresponding to the r-th time point, θ0 is represented as the allowable error value of the volume difference of the preset time point, r is represented as the time point number, r=1, 2, ..., d, d is the number of time points, ξ is represented as the floating deviation factor corresponding to the volume difference of the preset time point; Compare the volume differences of the speakers at the corresponding time points with each other, and select the maximum and minimum values ​​of the volume differences of the speakers at the corresponding time points; By analytical formula Get the uniformity coefficient of the tone effect corresponding to each speaker, where: They respectively represent the maximum and minimum volume differences of the j-th speaker at the corresponding time points, Δθ represents the allowable error value of the maximum and minimum volume differences at the preset time points, and ρ represents the floating deviation factor corresponding to the preset pitch uniformity coefficient.

7. The teaching integrated speaker control and management system according to claim 6, characterized in that: The analysis of the sound quality distortion coefficient of each loudspeaker is specifically as follows: Calculate the sound quality distortion coefficient of each speaker Where λ represents the evaluation correction factor corresponding to the preset sound quality distortion coefficient of the broadcaster, c1, c2, c3 represent the weighting factors corresponding to the preset dust volume evaluation coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the mask net, respectively, and F 、 W 、 H represents the threshold values ​​of the dust volume evaluation coefficient, volume accuracy coefficient and tone effect uniformity coefficient of the preset speaker corresponding to the mask net; The sound quality distortion coefficient of each speaker is compared with the preset speaker sound quality distortion coefficient threshold. If the sound quality distortion coefficient of a speaker is greater than the preset speaker sound quality distortion coefficient threshold, the speaker is determined to be a speaker with severe sound quality distortion, and then the speaker with severe sound quality distortion is maintained.

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