CN112165612B - Piano remote teaching device, teaching system and teaching method thereof - Google Patents
Piano remote teaching device, teaching system and teaching method thereof Download PDFInfo
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- CN112165612B CN112165612B CN202011240323.XA CN202011240323A CN112165612B CN 112165612 B CN112165612 B CN 112165612B CN 202011240323 A CN202011240323 A CN 202011240323A CN 112165612 B CN112165612 B CN 112165612B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B15/00—Teaching music
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C1/00—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards
- G10C1/02—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards of upright pianos
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
- G10G5/00—Supports for musical instruments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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Abstract
The invention discloses a piano remote teaching device and a teaching system and a teaching method thereof, wherein the piano remote teaching device comprises a microphone, a high-definition camera, a display screen, a recording module, a network analysis module, a tone comparison module and an intelligent reminding module, the high-definition camera is assembled above a piano body and on a piano frame, the microphone is placed on the upper side of the piano frame, the display screen is assembled in a storage box, and the recording module is used for recording piano teaching audio and video and storing the successfully recorded piano teaching audio and video into a database; the tone comparison module is used for carrying out tone comparison on the piano teaching audio and video which are remotely transmitted; the network analysis module is used for analyzing a network used for piano remote teaching; the intelligent reminding module is used for reminding network abnormal conditions of the student end and the teacher end; the piano audio and video transmission method avoids transmitting the piano audio and video distorted due to network factors to student users, and guarantees the teaching quality of piano remote teaching.
Description
Technical Field
The invention belongs to the technical field of remote education, relates to a piano remote teaching technology, and particularly relates to a piano remote teaching device, a piano remote teaching system and a piano remote teaching method.
Background
Distance education is an education form which adopts various media ways to carry out system teaching and communication connection, and is education for delivering courses to one or more students outside a campus. Modern distance education refers to education in which courses are delivered through audio, video (live or video), and computer technology, both real-time and non-real-time. Modern distance education is a new education mode generated along with the development of modern information technology. The development of computer technology, multimedia technology and communication technology, especially the rapid development of the Internet, makes the means of distance education have a qualitative leap and become distance education under the high and new technical conditions. Modern distance education is mainly based on modern distance education means, and is compatible with traditional teaching forms such as professor, letter, self-study and the like, and a multi-media optimization and combination education mode.
During piano remote teaching, unstable network factors easily cause conditions such as distortion of piano audio and video transmission, inaccurate piano color, tone color and tone accuracy are transmitted to student users, and the student users do not have self-judgment capacity, so that piano teaching has deviation, and piano remote teaching effect and quality are influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a piano remote teaching device, a piano remote teaching system and a piano remote teaching method.
The technical problem to be solved by the invention is as follows:
during piano long-range teaching, unstable network factor leads to piano audio and video transmission to appear the condition such as distortion very easily, and the musical instrument colour, tone quality and intonation that are accurate inadequately transmit for student's user, because student's user does not possess the ability of self-judgement, lead to piano teaching to have the deviation, has influenced piano long-range teaching effect and quality.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a piano remote teaching device, includes the piano frame and places the piano body on the piano frame, one side fixed mounting of piano frame has places the board, place the piano body on the board, the musical instrument lid is installed to piano body upside, one side of piano frame just is located the below of placing the board and installs the fixed plate, it is fixed with the bracing piece to place board lower extreme bilateral symmetry, the bracing piece runs through the fixed plate, piano body top just is located piano frame and is equipped with high definition digtal camera, the microphone has been placed to piano frame upside, the relative side fixed mounting who just is located the piano body on the piano frame has the receiver, exit has been seted up to the receiver up end, the inside elevating system that is equipped with of receiver, the elevating system upside is equipped with the display screen, the display screen is through importing and exporting the business turn over receiver.
Further, elevating system includes connecting piece and telescopic cylinder, receiver internal assembly has telescopic cylinder, the connecting piece is installed to display screen lower extreme bilateral symmetry, and telescopic cylinder 13 is connected with the display screen through the connecting piece, the through-hole has been seted up to the fixed plate inside, and through-hole and bracing piece phase-match.
A piano remote teaching system comprises a controller, a student end, a database, a data acquisition module, a demand release module, a recording module, a teacher end, a network analysis module, a tone comparison module and an intelligent reminding module;
the piano frame is internally provided with a controller, the controller is in communication connection with a database, the controller is in communication connection with a plurality of student ends, the controller is in communication connection with a teacher end, the database is used for storing piano remote teaching data, the student ends are used for student users to log in a piano remote teaching system, and the teacher end is used for teacher users to log in the piano remote teaching system;
the data acquisition module is used for acquiring the piano teaching audio and video and sending the piano teaching audio and video to the controller; the recording module is used for recording the piano teaching audio and video and storing the piano teaching audio and video which is recorded successfully into the database; the demand release module is used for releasing a piano teaching request by a student user; the tone comparison module is used for carrying out tone comparison on the piano teaching audio and video which are remotely transmitted; the network analysis module is used for analyzing a network used for piano remote teaching; the intelligent reminding module is used for reminding network abnormal conditions of the student end and the teacher end.
Further, the specific analysis process of the network analysis module is as follows:
SS 1: selecting mobile equipment at a student end, and recording the mobile equipment as u, u being 1, … …, n;
SS 2: calculating to obtain a downloading speed mean value according to the downloading speed and the downloading duration of the piano teaching audio and video received by the mobile equipment used by the student end, and marking the downloading speed mean value as Xu;
SS 3: calculating to obtain an uploading speed mean value according to the uploading speed and the uploading duration of the piano teaching audio and video sent to the network analysis module by the mobile equipment used by the student end, and marking the uploading speed mean value as Su;
SS 4: calculating the average value of the signal intensity and the ping value of the mobile equipment used by the student end to obtain the average value of the signal intensity and the average value of the ping value, and sequentially marking the average values as Qu and Ru;
SS 5: acquiring a signal base station of mobile equipment used by a student end, and dividing signal sectors transmitted by the signal base station into o, o being 1, … …, n in sequence; sequentially dividing the signal distance transmitted by the signal base station into p, p is 1, … …, n; the signal area transmitted by the signal base station is denoted as (o, p); setting a preset downloading speed mean value of the signal area as Xop; setting a preset uploading speed mean value of the signal area as Sop; setting the preset signal intensity of the signal area as Qop; setting a preset ping mean value of the signal area as Rop;
SS 6: using formulas
Calculating to obtain a network speed abnormal value Wu of mobile equipment used by the student end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values;
SS 7: when the network speed abnormal value Wu of the mobile equipment used by the student end is greater than a set threshold value, judging that the network speed of the mobile equipment used by the student end is abnormal, and simultaneously generating a network speed abnormal instruction to be loaded to the controller;
SS 8: the controller controls the intelligent reminding module to inform the student of the network abnormal condition.
Further, the specific comparison process of the tone color comparison module is as follows:
s1: acquiring an audio image of a piano track taught by a teacher user in piano remote teaching, and setting the audio image as a first audio image;
s2: the piano remote audio and video are collected and transmitted to a student end through a data collection module, an audio image of the piano music after remote transmission is obtained, and the audio image is set as a second audio image;
s3: randomly cutting an audio fragment A1 on the first audio map, and correspondingly cutting an audio fragment A2 with the same start and stop time as the first audio map on the second audio map;
s4: traversing the audio segment A1 to obtain an amplitude upper limit value ZA1max and an amplitude lower limit value ZA1 min; traversing the audio segment A2 to obtain an amplitude upper limit value ZA2max and an amplitude lower limit value ZA2 min;
s5: traversing all audio wavelengths in the audio clip A1 to obtain an upper wavelength limit value BA1max and a lower wavelength limit value BA1min in the audio clip A1; traversing all audio wavelengths in the audio clip A2 to obtain an upper wavelength limit value BA2max and a lower wavelength limit value BA2min in the audio clip A1;
s6: calculating a deviation value PC of the piano teaching audio and video by using a formula, wherein the specific calculation process is as follows:
s7: and if the deviation value PC of the piano teaching audio and video exceeds the set deviation threshold, judging that the piano remote teaching audio and video transmission is abnormal.
A piano remote teaching method specifically comprises the following steps:
the method comprises the following steps: the piano body is placed on the placing plate on one side of the piano frame, the piano cover covers the upper side of the piano body, the supporting rods are arranged on the lower side of the placing plate, the placing plate is stably supported through the supporting rods, when piano remote teaching is carried out, a teacher user opens the piano cover and starts the piano remote teaching by logging in the piano remote teaching system through the teacher end, a student user logs in the piano remote teaching system through the student end to carry out piano remote learning, and a display screen is used for displaying the teaching situations of a plurality of student users;
step two: a teacher user plays a piano on the piano frame according to the piano songs and gives a lecture to the piano, a high-definition camera shoots and uploads a piano teaching video, a microphone records and uploads lecture information and piano sound, and a student user watches remote teaching of the piano through a student end;
step three: the method comprises the steps that a tone comparison module compares tones of remotely transmitted piano teaching audios and videos, a first audio graph of a piano song taught by a teacher user in piano remote teaching and a second audio graph of the piano song transmitted to a student end are obtained, a section of same audio fragment is cut out from the first audio graph and the second audio graph, the amplitude upper limit value, the amplitude lower limit value, the wavelength upper limit value and the wavelength lower limit value of the two audio fragments are obtained in a traversing mode respectively, a deviation value of the piano teaching audios and videos is obtained through formula calculation, and if the deviation value of the piano teaching audios and videos exceeds a set deviation threshold value, it is judged that the piano remote teaching audios and videos are transmitted abnormally;
step four: the network analysis module analyzes the network used by the piano remote teaching, selects the mobile equipment of the student end and the teacher end, calculates the download speed average value, the upload speed average value, the signal intensity average value and the ping average value of the mobile equipment, obtains the signal base station of the mobile equipment, divides the signal sector and the signal distance transmitted by the signal base station according to the sequence, and identifies the signal area transmitted by the signal base station, then setting a preset downloading speed average value, a preset uploading speed average value, a preset signal strength and a preset ping average value of the signal area, calculating network speed abnormal values of mobile equipment used by the student end and the teacher end by using a formula, and when the network speed abnormal values of the mobile equipment are greater than a set threshold value, judging the network speed of the mobile equipment is abnormal, generating a network speed abnormal instruction and loading the network speed abnormal instruction to the controller, and controlling the intelligent reminding module to notify the network abnormal conditions of the student end and the teacher end by the controller;
step five: in the piano remote teaching process, the recording module records piano teaching audio and video, the recorded piano teaching audio and video is automatically backed up and stored in a database for subsequent student users to browse, and the student users issue piano teaching requests through the demand issuing module.
Compared with the prior art, the invention has the beneficial effects that:
1. when the piano remote teaching is carried out, the network speed of the mobile equipment used by a user is analyzed through the network analysis module, the network speed abnormal value of the mobile equipment used by the user is obtained through downloading the speed average value, uploading the speed average value, the signal intensity average value and the ping average value and calculation by using a formula, when the network speed abnormal value is greater than a set threshold value, the network speed abnormality of the mobile equipment is judged, and meanwhile, a network abnormality instruction is generated and sent to the user;
2. the invention compares the sound color of the piano teaching audio and video which are remotely transmitted through the sound color comparison module to obtain a first audio image which is taught by a teacher end and a second audio image which is transmitted to a student end, intercepting a section of same audio segment on the first audio graph and the second audio graph, traversing to obtain the amplitude upper limit value, the amplitude lower limit value, the wavelength upper limit value and the wavelength lower limit value of the two audio segments, calculating by using a formula to obtain a deviation value of the piano teaching audio and video, if the deviation value PC of the piano teaching audio and video exceeds a set deviation threshold value, judging that the piano remote teaching audio and video transmission is abnormal, this design is compared through the tone quality and is reachd the piano teaching and whether have the deviation under the prerequisite that student's user does not possess oneself judgement ability, further avoids insufficiently accurate musical instrument colour, tone and intonation to transmit for student's user, guarantee teaching quality.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a telescopic mechanism according to the present invention;
fig. 3 is an overall system block diagram of the present invention.
In the figure: 1. a piano body; 2. a piano cover; 3. a microphone; 4. a piano frame; 5. a high-definition camera; 6. a display screen; 7. a storage box; 8. a support bar; 9. placing the plate; 10. a fixing plate; 11. an inlet and an outlet; 12. a connecting member; 13. a telescopic cylinder.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a piano remote teaching device comprises a piano body 1, a piano cover 2, a microphone 3, a piano frame 4, a high-definition camera 5, a display screen 6, a storage box 7, a support rod 8, a placing plate 9, a fixing plate 10 and a controller;
a placing plate 9 is fixedly installed on one side of a piano frame 4, a piano body 1 is placed on the placing plate 9, a piano cover 2 is installed on the upper side of the piano body 1, a fixing plate 10 is installed on one side of the piano frame 4 and below the placing plate 9, supporting rods 8 are symmetrically fixed on two sides of the lower end of the placing plate 9, the supporting rods 8 penetrate through the fixing plate 10, a high-definition camera 5 is assembled above the piano body 1 and on the piano frame 4, a microphone 3 is placed on the upper side of the piano frame 4, a storage box 7 is fixedly installed on the piano frame 4 and on the opposite side of the piano body 1, an inlet and an outlet 11 are formed in the upper end face of the storage box 7, a lifting mechanism is assembled inside the storage box 7, a display screen 6 is assembled on the upper side of;
the lifting mechanism comprises a connecting piece 12 and a telescopic cylinder 13, the telescopic cylinder 13 is assembled in the storage box 7, the connecting piece 12 is symmetrically arranged on two sides of the lower end of the display screen 6, the telescopic cylinder 13 is connected with the display screen 6 through the connecting piece 12, a through hole is formed in the fixed plate 10, and the through hole is matched with the support rod 8;
in specific implementation, in the piano remote teaching device provided in the embodiment of the present invention, as shown in fig. 2, the lifting mechanism may be specifically a telescopic cylinder 13, or may also be an electric telescopic rod, or may also be another device capable of being telescopic, and is not limited herein; the high-definition camera 5 may be a 360-degree panoramic camera, or may be another device capable of collecting piano teaching video information, which is not limited herein, and the connecting member 12 may be a fixing screw, a screw, or a cylinder with an external thread;
in the piano remote teaching device provided by the embodiment of the invention, a piano body 1 is placed on a placing plate 9 on one side of a piano frame 4, a piano cover 2 covers the upper side of the piano body 1, a supporting rod 8 is arranged on the lower side of the placing plate 9, the supporting rod 8 passes through a fixing plate 10 fixed on the piano frame 4, the lower end face of the supporting plate is in contact with the ground, the placing plate 9 is stably supported through the supporting rod 8, when piano remote teaching is required, the piano cover 2 is opened, a teacher user logs in a piano remote teaching system through a teacher end to carry out piano remote teaching on student users logged in the student end, at the moment, a telescopic cylinder 13 is electrified to drive a display screen 6 to move out of a storage box 7 through an inlet and an outlet 11, the display screen 6 is used for displaying the teaching situations of a plurality of student users, and piano teaching videos of the teacher user are shot and uploaded through, the teaching information of the teacher user and the piano sound are recorded and uploaded through the microphone 3, the student user carries out remote teaching on the piano through the student end, and meanwhile, the piano teaching audio and video can be stored in the database in a backup mode so as to be browsed by the follow-up student user.
Referring to fig. 3, based on the same inventive concept, an embodiment of the present invention further provides a piano remote teaching system, where the piano remote teaching system includes a controller, a student terminal, a database, a data acquisition module, a demand release module, a recording module, a teacher terminal, a network analysis module, a tone color comparison module, and an intelligent reminding module;
the piano frame 4 is internally provided with a controller, the controller is in communication connection with a database for storing piano remote teaching data, the controller is in communication connection with a plurality of student terminals for logging in the piano remote teaching system by student users, and the controller is in communication connection with a teacher terminal for logging in the piano remote teaching system by teacher users;
the controller is in communication connection with a database used for storing piano remote teaching data, the controller is in communication connection with a plurality of student terminals used for student users to log in the piano remote teaching system, and the controller is in communication connection with a teacher terminal used for teacher users to log in the piano remote teaching system;
the piano frame 4 is internally provided with a controller, and a database is used for storing remote teaching data of the piano; the student end is used for logging in a piano remote teaching system by a student user; the teacher end is used for enabling a teacher user to log in the piano remote teaching system;
it should be noted that, in the piano remote teaching system provided in the embodiment of the present invention, the piano remote teaching data includes piano music, piano tracks, piano teaching recorded audio/video, and the like; the student terminal is a mobile device with high compatibility used by a student user; the teacher end is a mobile device used by a teacher user; the mobile equipment comprises a personal computer, a tablet computer, a mobile phone and the like, and supports a Windows system, a Linux system, an Android system, an iOS system and the like;
the data acquisition module is used for acquiring the piano teaching audio and video and sending the piano teaching audio and video to the controller; the recording module is used for recording the piano teaching audio and video and storing the piano teaching audio and video which is recorded successfully into the database; the demand release module is used for releasing a piano teaching request by a student user;
it should be noted that, in the piano remote teaching system provided in the embodiment of the present invention, the piano teaching request includes piano teaching tracks, piano teaching duration, piano teaching audios and videos, and the piano teaching tracks are numerous piano tracks stored in the database, the teacher end can select corresponding piano teaching tracks according to the piano teaching request issued by the student user, and the piano teaching duration reasonably arranges the piano remote teaching, wherein if the student end wants to review the previously learned piano teaching tracks, the student end can also search the piano teaching audios and videos wanted by the student end from the database, and the piano teaching audios and videos not only have the piano track playing teaching, but also have the piano learning opinions proposed by the teacher user for the piano tracks;
the tone comparison module is used for carrying out tone comparison on the piano teaching audio and video transmitted remotely, and the specific comparison process is as follows:
s1: acquiring an audio image of a piano track taught by a teacher user in piano remote teaching, and setting the audio image as a first audio image;
s2: the piano remote audio and video are collected and transmitted to a student end through a data collection module, an audio image of the piano music after remote transmission is obtained, and the audio image is set as a second audio image;
s3: randomly cutting an audio fragment A1 on the first audio map, and correspondingly cutting an audio fragment A2 with the same start and stop time as the first audio map on the second audio map;
s4: traversing the audio segment A1 to obtain an amplitude upper limit value ZA1max and an amplitude lower limit value ZA1 min; traversing the audio segment A2 to obtain an amplitude upper limit value ZA2max and an amplitude lower limit value ZA2 min;
s5: traversing all audio wavelengths in the audio clip A1 to obtain an upper wavelength limit value BA1max and a lower wavelength limit value BA1min in the audio clip A1; traversing all audio wavelengths in the audio clip A2 to obtain an upper wavelength limit value BA2max and a lower wavelength limit value BA2min in the audio clip A1;
s6: calculating a deviation value PC of the piano teaching audio and video by using a formula, wherein the specific calculation process is as follows:
s7: if the deviation value PC of the piano teaching audio and video exceeds a set deviation threshold value, judging that the piano remote teaching audio and video transmission is abnormal;
the intelligent reminding module is used for reminding network abnormal conditions of the student end and the teacher end; the network analysis module receives the comparison result of the tone comparison module, and analyzes the network used by the piano remote teaching when judging that the audio and video transmission of the piano remote teaching is abnormal; the network analysis module is used for analyzing a network used for piano remote teaching, and the specific analysis process is as follows:
SS 1: selecting mobile equipment at a student end, and recording the mobile equipment as u, u being 1, … …, n;
SS 2: calculating to obtain a downloading speed mean value according to the downloading speed and the downloading duration of the piano teaching audio and video received by the mobile equipment used by the student end, and marking the downloading speed mean value as Xu;
SS 3: calculating to obtain an uploading speed mean value according to the uploading speed and the uploading duration of the piano teaching audio and video sent to the network analysis module by the mobile equipment used by the student end, and marking the uploading speed mean value as Su;
SS 4: calculating the average value of the signal intensity and the ping value of the mobile equipment used by the student end to obtain the average value of the signal intensity and the average value of the ping value, and sequentially marking the average values as Qu and Ru;
SS 5: acquiring a signal base station of mobile equipment used by a student end, and dividing signal sectors transmitted by the signal base station into o, o being 1, … …, n in sequence; sequentially dividing the signal distance transmitted by the signal base station into p, p is 1, … …, n; the signal area transmitted by the signal base station is denoted as (o, p); setting a preset downloading speed mean value of the signal area as Xop; setting a preset uploading speed mean value of the signal area as Sop; setting the preset signal intensity of the signal area as Qop; setting a preset ping mean value of the signal area as Rop;
SS 6: using formulas
Calculating to obtain a network speed abnormal value Wu of mobile equipment used by the student end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values;
SS 7: when the network speed abnormal value Wu of the mobile equipment used by the student end is greater than a set threshold value, judging that the network speed of the mobile equipment used by the student end is abnormal, and simultaneously generating a network speed abnormal instruction to be loaded to the controller;
SS 8: the controller controls the intelligent reminding module to inform the student of the network abnormal condition;
in a specific implementation, in the piano remote teaching system provided in the embodiment of the present invention, the network analysis module may not only perform network analysis on the mobile devices used by the student side, but also perform network analysis on the mobile devices used by the teacher side, where the specific analysis process is as follows:
w1: selecting a mobile device at a teacher end, and recording the mobile device as i, i is 1, … …, n;
w2: calculating to obtain a downloading speed mean value according to the downloading speed and the downloading duration of the piano teaching audio and video received by the mobile equipment used by the teacher end, and marking the downloading speed mean value as Xi;
w3: calculating to obtain an uploading speed mean value according to the uploading speed and uploading duration of the piano teaching audio and video sent to the network analysis module by the mobile equipment used by the teacher end, and marking the uploading speed mean value as Si;
w4: calculating the average value of the signal intensity and the ping value of the mobile equipment used by the teacher end to obtain the signal intensity average value and the ping average value, and sequentially marking the signal intensity average value and the ping average value as Qi and Ri;
w5: acquiring a signal base station of mobile equipment used by a teacher end, and dividing signal sectors transmitted by the signal base station into j, j being 1, … …, n in sequence; sequentially dividing signal distances transmitted by signal base stations into k, k being 1, … …, n; the signal area transmitted by the signal base station is represented as (j, k); setting a preset downloading speed mean value of the signal area as Xjk; setting a preset uploading speed mean value of the signal area as Sjk; setting Qjk as the preset signal intensity of the signal area; setting a preset ping mean value of the signal area as Rjk;
w6: using formulas
Calculating to obtain a network speed abnormal value Wi of the mobile equipment used by the teacher end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values;
w7: when the network speed abnormal value Wi of the mobile equipment used by the teacher end is larger than a set threshold, judging that the network speed of the mobile equipment used by the teacher end is abnormal, and simultaneously generating a network speed abnormal instruction to be loaded to the controller;
w8: the controller controls the intelligent reminding module to inform the teacher end of the network abnormal condition.
In specific implementation, in the piano remote teaching system provided in the embodiment of the present invention, the intelligent reminding module may be further configured to remind the piano remote teaching of class, where the reminding process specifically is as follows:
p1: acquiring the class time of piano remote teaching of a student user, and marking the class time as T0;
p2: obtaining the current time Td by using a system, and obtaining waiting time T1 by subtracting the current time from the class time;
p3: if the waiting time T1 is less than the waiting preset time TY1, acquiring the contact way of the mobile equipment used by the student end, and sending the contact way to the mobile equipment of the student end in a short message form;
p4: if the waiting time T1 is less than the waiting preset time TY1/2, acquiring the contact information of the mobile equipment used by the student end, and sending the contact information to the mobile equipment of the student end in a communication mode;
p5: and if the current time Td reaches the school time T0, acquiring the contact way of the mobile device used by the student terminal, and dialing the contact way of the guardian of the student user.
Based on the same inventive concept, the embodiment of the invention also provides a piano remote teaching method, which comprises the following steps:
the method comprises the following steps: the piano body 1 is placed on a placing plate 9 on one side of a piano frame 4, a piano cover 2 covers the upper side of the piano body 1, a supporting rod 8 is arranged on the lower side of the placing plate 9, the placing plate 9 is stably supported through the supporting rod 8, when piano remote teaching is carried out, a teacher user opens the piano cover 2, a teacher end logs in a piano remote teaching system to start piano remote teaching, a student end logs in the piano remote teaching system to carry out piano remote learning, and a display screen 6 is used for displaying the teaching situations of a plurality of student users;
step two: a teacher user plays the piano on the piano frame 4 according to the piano songs and gives a lecture to the piano, a high-definition camera 5 shoots and uploads a piano teaching video, a microphone 3 records and uploads teaching information and piano sound, and a student user watches remote teaching of the piano through a student end;
step three: the method comprises the steps that a tone comparison module compares tones of remotely transmitted piano teaching audios and videos, a first audio graph of a piano song taught by a teacher user in piano remote teaching and a second audio graph of the piano song transmitted to a student end are obtained, a section of same audio fragment is cut out from the first audio graph and the second audio graph, the amplitude upper limit value, the amplitude lower limit value, the wavelength upper limit value and the wavelength lower limit value of the two audio fragments are obtained in a traversing mode respectively, a deviation value of the piano teaching audios and videos is obtained through formula calculation, and if the deviation value PC of the piano teaching audios and videos exceeds a set deviation threshold value, it is judged that the piano remote teaching audios and videos are transmitted abnormally;
step four: the network analysis module analyzes the network used by the piano remote teaching, selects the mobile equipment of the student end and the teacher end, calculates the download speed average value, the upload speed average value, the signal intensity average value and the ping average value of the mobile equipment, obtains the signal base station of the mobile equipment, divides the signal sector and the signal distance transmitted by the signal base station according to the sequence, and identifies the signal area transmitted by the signal base station, then setting a preset downloading speed average value, a preset uploading speed average value, a preset signal strength and a preset ping average value of the signal area, calculating network speed abnormal values of mobile equipment used by the student end and the teacher end by using a formula, and when the network speed abnormal values of the mobile equipment are greater than a set threshold value, judging the network speed of the mobile equipment is abnormal, generating a network speed abnormal instruction and loading the network speed abnormal instruction to the controller, and controlling the intelligent reminding module to notify the network abnormal conditions of the student end and the teacher end by the controller;
step five: in the piano remote teaching process, the recording module records piano teaching audio and video, the recorded piano teaching audio and video is automatically backed up and stored in a database for subsequent student users to browse, and the student users issue piano teaching requests through the demand issuing module.
A piano long-range teaching device and teaching system and its teaching method, while working, lay the piano body 1 on the board 9 of placing of one side of the piano frame 4 at first, the piano cover 2 covers the upside of the piano body 1, there are support bars 8 on the underside of the board 9 of placing, and the support bar 8 passes the fixed plate 10 fixed on piano frame 4 through passing, the lower end of the back plate contacts with ground, place the board 9 and realize the stable support through the support bar 8;
when piano remote teaching is carried out, a teacher user opens a piano cover 2, and carries out piano remote teaching on student users logged in at a student end through a teacher end logging piano remote teaching system, at the moment, a telescopic cylinder 13 is electrified to drive a display screen 6 to move out of a storage box 7 through an inlet and an outlet 11, the display screen 6 is used for displaying the teaching situations of a plurality of student users, the piano teaching video of the teacher user is shot and uploaded through a high-definition camera 5, the teaching information and piano sound of the teacher user are recorded and uploaded through a microphone 3, and the student users listen and speak to the piano teaching video, the teaching information and piano sound through the student ends;
the method comprises the steps that tone comparison is carried out on piano teaching audios and videos which are remotely transmitted through a tone comparison module, a first audio graph of a piano song taught by a teacher user in piano remote teaching and a second audio graph of the piano song transmitted to a student end are obtained, a section of same audio fragment is cut out from the first audio graph and the second audio graph, the amplitude upper limit value, the amplitude lower limit value, the wavelength upper limit value and the wavelength lower limit value of the two audio fragments are respectively obtained through traversal, a deviation value PC of the piano teaching audios and videos is obtained through formula calculation, and if the deviation value PC of the piano teaching audios and videos exceeds a set deviation threshold value, the piano remote teaching audio and video transmission is judged to be abnormal;
analyzing the network used by piano remote teaching through a network analysis module, selecting the mobile equipment of a student end and a teacher end, acquiring the download speed average value, the upload speed average value, the signal intensity average value and the ping average value of the mobile equipment, acquiring the signal base station of the mobile equipment, the signal sector and the signal distance transmitted by the signal base station are divided according to the sequence, the signal area transmitted by the signal base station is identified, the preset downloading speed average value, the preset uploading speed average value, the preset signal strength and the preset ping average value of the signal area are set, the network speed abnormal value of the used mobile equipment is obtained by calculation through a formula, when the network speed abnormal value of the used mobile equipment is larger than the set threshold value, judging the network speed of the mobile equipment is abnormal, generating a network speed abnormal instruction and loading the network speed abnormal instruction to the controller, and controlling the intelligent reminding module to notify the network abnormal conditions of the student end and the teacher end by the controller;
in the piano remote teaching process, piano teaching audios and videos can be backed up and stored in a database in real time so as to be browsed by subsequent student users, and the student users can also issue piano teaching requests through a demand issuing module.
The above formulas are all calculated by taking the numerical value of the dimension, the formula is a formula which obtains the latest real situation by acquiring a large amount of data and performing software simulation, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A piano remote teaching device comprises a piano frame (4) and a piano body (1) placed on the piano frame (4), and is characterized in that a placing plate (9) is fixedly installed on one side of the piano frame (4), the piano body (1) is placed on the placing plate (9), a piano cover (2) is installed on the upper side of the piano body (1), a fixing plate (10) is installed on one side of the piano frame (4) and located below the placing plate (9), supporting rods (8) are symmetrically fixed on two sides of the lower end of the placing plate (9), the supporting rods (8) penetrate through the fixing plate (10), a high-definition camera (5) is assembled above the piano body (1) and located on the piano frame (4), a microphone (3) is placed on the upper side of the piano frame (4), and a storage box (7) is fixedly installed on the piano frame (4) and located on the opposite side face of the piano body (1), an inlet and an outlet (11) are formed in the upper end face of the storage box (7), a lifting mechanism is assembled in the storage box (7), a display screen (6) is assembled on the upper side of the lifting mechanism, and the display screen (6) enters and exits the storage box (7) through the inlet and the outlet (11);
the lifting mechanism comprises a connecting piece (12) and a telescopic cylinder (13), the telescopic cylinder (13) is assembled in the storage box (7), the connecting pieces (12) are symmetrically installed on two sides of the lower end of the display screen (6), the telescopic cylinder (13) is connected with the display screen (6) through the connecting pieces (12), a through hole is formed in the fixed plate (10), and the through hole is matched with the supporting rod (8);
the piano remote teaching device also comprises a controller, a student end, a database, a data acquisition module, a demand release module, a recording module, a teacher end, a network analysis module, a tone comparison module and an intelligent reminding module;
the piano frame (4) is internally provided with a controller, the controller is in communication connection with a database, the controller is in communication connection with a plurality of student ends, the controller is in communication connection with a teacher end, the database is used for storing piano remote teaching data, the student ends are used for enabling student users to log in a piano remote teaching system, and the teacher end is used for enabling the teacher user to log in the piano remote teaching system;
the data acquisition module is used for acquiring the piano teaching audio and video and sending the piano teaching audio and video to the controller; the recording module is used for recording the piano teaching audio and video and storing the piano teaching audio and video which is recorded successfully into the database; the demand release module is used for releasing a piano teaching request by a student user; the tone comparison module is used for carrying out tone comparison on the piano teaching audio and video which are remotely transmitted; the network analysis module is used for analyzing a network used for piano remote teaching; the intelligent reminding module is used for reminding network abnormal conditions of the student end and the teacher end;
the network analysis module is also used for carrying out network analysis on the mobile equipment used by the teacher end, and the specific analysis process is as follows:
w1: selecting a mobile device at a teacher end, and recording the mobile device as i, i is 1, … …, n;
w2: calculating to obtain a downloading speed mean value according to the downloading speed and the downloading duration of the piano teaching audio and video received by the mobile equipment used by the teacher end, and marking the downloading speed mean value as Xi;
w3: calculating to obtain an uploading speed mean value according to the uploading speed and uploading duration of the piano teaching audio and video sent to the network analysis module by the mobile equipment used by the teacher end, and marking the uploading speed mean value as Si;
w4: calculating the average value of the signal intensity and the ping value of the mobile equipment used by the teacher end to obtain the signal intensity average value and the ping average value, and sequentially marking the signal intensity average value and the ping average value as Qi and Ri;
w5: acquiring a signal base station of mobile equipment used by a teacher end, and dividing signal sectors transmitted by the signal base station into j, j being 1, … …, n in sequence; sequentially dividing signal distances transmitted by signal base stations into k, k being 1, … …, n; the signal area transmitted by the signal base station is represented as (j, k); setting a preset downloading speed mean value of the signal area as Xjk; setting a preset uploading speed mean value of the signal area as Sjk; setting Qjk as the preset signal intensity of the signal area; setting a preset ping mean value of the signal area as Rjk;
w6: using formulas
Calculating to obtain a network speed abnormal value Wi of the mobile equipment used by the teacher end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values;
w7: when the network speed abnormal value Wi of the mobile equipment used by the teacher end is larger than a set threshold, judging that the network speed of the mobile equipment used by the teacher end is abnormal, and simultaneously generating a network speed abnormal instruction to be loaded to the controller;
w8: the controller controls the intelligent reminding module to inform the teacher end of the network abnormal condition;
the module is reminded to intelligence still is used for reminding on class to piano remote teaching, and the process of specifically reminding is as follows:
p1: acquiring the class time of piano remote teaching of a student user, and marking the class time as T0;
p2: obtaining the current time Td by using a system, and obtaining waiting time T1 by subtracting the current time from the class time;
p3: if the waiting time T1 is less than the waiting preset time TY1, acquiring the contact way of the mobile equipment used by the student end, and sending the contact way to the mobile equipment of the student end in a short message form;
p4: if the waiting time T1 is less than the waiting preset time TY1/2, acquiring the contact information of the mobile equipment used by the student end, and sending the contact information to the mobile equipment of the student end in a communication mode;
p5: and if the current time Td reaches the school time T0, acquiring the contact way of the mobile device used by the student terminal, and dialing the contact way of the guardian of the student user.
2. A piano remote teaching device according to claim 1, wherein said network analysis module further analyzes the student side, and the specific analysis process is as follows:
SS 1: selecting mobile equipment at a student end, and recording the mobile equipment as u, u being 1, … …, n;
SS 2: calculating to obtain a downloading speed mean value according to the downloading speed and the downloading duration of the piano teaching audio and video received by the mobile equipment used by the student end, and marking the downloading speed mean value as Xu;
SS 3: calculating to obtain an uploading speed mean value according to the uploading speed and the uploading duration of the piano teaching audio and video sent to the network analysis module by the mobile equipment used by the student end, and marking the uploading speed mean value as Su;
SS 4: calculating the average value of the signal intensity and the ping value of the mobile equipment used by the student end to obtain the average value of the signal intensity and the average value of the ping value, and sequentially marking the average values as Qu and Ru;
SS 5: acquiring a signal base station of mobile equipment used by a student end, and dividing signal sectors transmitted by the signal base station into o, o being 1, … …, n in sequence; sequentially dividing the signal distance transmitted by the signal base station into p, p is 1, … …, n; the signal area transmitted by the signal base station is denoted as (o, p); setting a preset downloading speed mean value of the signal area as Xop; setting a preset uploading speed mean value of the signal area as Sop; setting the preset signal intensity of the signal area as Qop; setting a preset ping mean value of the signal area as Rop;
SS 6: using formulas
Calculating to obtain a network speed abnormal value Wu of mobile equipment used by the student end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values;
SS 7: when the network speed abnormal value Wu of the mobile equipment used by the student end is greater than a set threshold value, judging that the network speed of the mobile equipment used by the student end is abnormal, and simultaneously generating a network speed abnormal instruction to be loaded to the controller;
SS 8: the controller controls the intelligent reminding module to inform the student of the network abnormal condition.
3. The remote teaching device for piano of claim 1, wherein the specific comparison process of the tone color comparison module is as follows:
s1: acquiring an audio image of a piano track taught by a teacher user in piano remote teaching, and setting the audio image as a first audio image;
s2: the piano remote audio and video are collected and transmitted to a student end through a data collection module, an audio image of the piano music after remote transmission is obtained, and the audio image is set as a second audio image;
s3: randomly cutting an audio fragment A1 on the first audio map, and correspondingly cutting an audio fragment A2 with the same start and stop time as the first audio map on the second audio map;
s4: traversing the audio segment A1 to obtain an amplitude upper limit value ZA1max and an amplitude lower limit value ZA1 min; traversing the audio segment A2 to obtain an amplitude upper limit value ZA2max and an amplitude lower limit value ZA2 min;
s5: traversing all audio wavelengths in the audio clip A1 to obtain an upper wavelength limit value BA1max and a lower wavelength limit value BA1min in the audio clip A1; traversing all audio wavelengths in the audio clip A2 to obtain an upper wavelength limit value BA2max and a lower wavelength limit value BA2min in the audio clip A1;
s6: calculating a deviation value PC of the piano teaching audio and video by using a formula, wherein the specific calculation process is as follows:
s7: and if the deviation value PC of the piano teaching audio and video exceeds the set deviation threshold, judging that the piano remote teaching audio and video transmission is abnormal.
4. A piano remote teaching method is characterized by comprising the following steps:
the method comprises the following steps: the piano body (1) is placed on a placing plate (9) on one side of a piano frame (4), a piano cover (2) covers the upper side of the piano body (1), a supporting rod (8) is arranged on the lower side of the placing plate (9), the placing plate (9) is stably supported through the supporting rod (8), when piano remote teaching is carried out, a teacher user opens the piano cover (2), the teacher end logs in a piano remote teaching system to open piano remote teaching, a student user logs in the piano remote teaching system through the student end to carry out piano remote learning, and a display screen (6) is used for displaying the teaching situations of a plurality of student users;
step two: a teacher user plays the piano on the piano frame (4) according to the piano songs and gives lessons to the piano, a high-definition camera (5) shoots and uploads a piano teaching video, a microphone (3) records and uploads teaching information and piano sound, and a student user watches remote teaching of the piano through a student end;
step three: the method comprises the steps that a tone comparison module compares tones of remotely transmitted piano teaching audios and videos, a first audio graph of a piano song taught by a teacher user in piano remote teaching and a second audio graph of the piano song transmitted to a student end are obtained, a section of same audio fragment is cut out from the first audio graph and the second audio graph, the amplitude upper limit value, the amplitude lower limit value, the wavelength upper limit value and the wavelength lower limit value of the two audio fragments are obtained in a traversing mode respectively, a deviation value of the piano teaching audios and videos is obtained through formula calculation, and if the deviation value of the piano teaching audios and videos exceeds a set deviation threshold value, it is judged that the piano remote teaching audios and videos are transmitted abnormally;
step four: the network analysis module analyzes a network used for piano remote teaching, selects mobile equipment of a student end and a teacher end, calculates to obtain a downloading speed average value, an uploading speed average value, a signal intensity average value and a ping average value of the mobile equipment, acquires a signal base station of the mobile equipment, divides signal sectors and signal distances transmitted by the signal base station according to a sequence, identifies a signal area transmitted by the signal base station, sets a preset downloading speed average value, a preset uploading speed average value, a preset signal intensity and a preset ping average value of the signal area, calculates to obtain network speed abnormal values of the mobile equipment used by the student end and the teacher end by using a formula,
using formulas
Calculating to obtain a network speed abnormal value Wu of mobile equipment used by the student end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values; the mean value of the signal intensity is recorded as Qu; recording the preset signal intensity of the signal area as Qop; recording the ping mean value as Ru; the preset ping mean value of the signal area is marked as Rop; the mean value of the downloading speeds is marked as Xu; the preset average download speed of the signal area is recorded as Xop; the average uploading speed is marked as Su; recording the preset uploading speed mean value of the signal area as Sop;
using formulas
Calculating to obtain a network speed abnormal value Wi of the mobile equipment used by the teacher end; in the formula, a1, a2, a3 and a4 are all preset fixed proportionality coefficient values; the average value of the downloading speed is marked as Xi; the preset average download speed of the signal area is recorded as Xjk; the mean signal intensity is recorded as Qi; the preset signal strength of the signal area is recorded as Qjk; the ping mean value is marked as Ri; the preset ping mean value of the signal area is recorded as Rjk; the average uploading speed is marked as Si; the preset uploading speed mean value of the signal area is recorded as Sjk;
when the network speed abnormal value of the mobile equipment is larger than a set threshold, judging that the network speed of the mobile equipment is abnormal, generating a network speed abnormal instruction and loading the network speed abnormal instruction to the controller, and controlling the intelligent reminding module to inform the network abnormal conditions of the student end and the teacher end by the controller; step five: in the piano remote teaching process, the recording module records piano teaching audio and video, the recorded piano teaching audio and video is automatically backed up and stored in a database for subsequent student users to browse, and the student users issue piano teaching requests through the demand issuing module.
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