CN108961919A - A kind of piano playing teaching auxiliary device - Google Patents
A kind of piano playing teaching auxiliary device Download PDFInfo
- Publication number
- CN108961919A CN108961919A CN201810846765.5A CN201810846765A CN108961919A CN 108961919 A CN108961919 A CN 108961919A CN 201810846765 A CN201810846765 A CN 201810846765A CN 108961919 A CN108961919 A CN 108961919A
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- piano
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- microprocessor
- playing
- auxiliary device
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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
- G09B15/001—Boards or like means for providing an indication of chords
- G09B15/002—Electrically operated systems
- G09B15/003—Electrically operated systems with indication of the keys or strings to be played on instruments
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
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- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
The present invention provides a kind of piano playing teaching auxiliary devices, multiple pressure sensors including being set to each piano key upper surface of piano, note data acquisition unit, storage unit, analyze comparison unit, play standard degree marking unit, wireless communication module and microprocessor, the microprocessor receives note data acquisition unit note information collected and is stored in the note information in the storage unit to play music score of Chinese operas data, marking of the standard degree marking unit to the analysis comparing result is played described in receiving simultaneously, and the score of the marking is wirelessly transmitted to teacher by the wireless communication module and receives terminal, microprocessor also coordinates above-mentioned each unit and module works.The present invention can timely know the effect of playing of oneself during student's piano playing is practiced, and can timely obtain the judge of counselor, greatly facilitate the efficiency that student learns piano.
Description
Technical field
The present invention relates to music teaching apparatus fields, and in particular to a kind of piano playing teaching auxiliary device.
Background technique
In piano playing, beginner is often difficult to smooth performance during playing and goes out the music score of Chinese operas, is especially playing
During to the length of the assurance of the specific location of each piano key, each key press time interval, with adjacent note it
Between play linking etc. be difficult to hold；Therefore not only bothersome but also laborious during study is played, it often can not be timely
Know the effect of playing of oneself, and piano teacher scene is needed to be judged and instructed, if it is possible to develop a kind of piano bullet
Teaching auxiliary device is played, during student carries out piano playing, can timely know the effect of playing of oneself, and energy
Enough judges for timely obtaining counselor then can undoubtedly greatly facilitate the efficiency that student learns piano.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned problems of the prior art, a kind of piano playing tutor auxiliary platform dress is provided
It sets, can timely know the effect of playing of oneself during student's piano playing is practiced, and can timely obtain
The judge of counselor can greatly promote student to learn the efficiency of piano.
The technical scheme is that a kind of piano playing teaching auxiliary device, comprising: several pressure sensors, it is right
It should be set on each piano key upper surface of piano, for detecting player to the press condition of each piano key；Note number
According to acquisition unit, for determining the pressure sensing according to player's finger press condition detected by the pressure sensor
The note data acquisition unit of note information representated by piano key where device；Storage unit, for storing the standard music score of Chinese operas
What data and note data acquisition unit note information collected were constituted plays music score of Chinese operas data；Comparison unit is analyzed, is used
In by standard music score of Chinese operas data and playing music score of Chinese operas data and carry out analysis comparison；Standard degree marking unit is played, for according to analysis
The analysis comparing result of output described in comparison unit is given a mark；Wireless communication module, for the marking of standard degree will to be played
What unit was obtained play standard degree score is wireless and plays music score of Chinese operas data is sent to teacher and receives terminal, while by teacher
The performance achievement that terminal is obtained is received wirelessly to pass back；Microprocessor is acquired for receiving the note data acquisition unit
Note information and the note information is stored in the storage unit with playing music score of Chinese operas data, while it is described for receiving
Marking of the standard degree marking unit to the analysis comparing result is played, and the score of the marking is passed through into the channel radio
Letter module is wirelessly transmitted to teacher and receives terminal；It is also used to coordinate above-mentioned each unit and module works；Power module is used for
It works and powers to entire piano playing teaching auxiliary device.
Above-mentioned microprocessor also signal, which is connected with, plays achievement output unit, and the performance achievement output unit will be for that will teach
Teacher receives the performance achievement output that terminal is obtained, the performance achievement output unit is display screen or printer.
Above-mentioned microprocessor also signal is connected with video camera, and the video camera is used for during player plays to key
Disk is recorded a video, and Video content is sent to the microprocessor, and the microprocessor will by the wireless communication module
Video content is sent to teacher and receives terminal, consequently facilitating the teacher that teacher receives terminal judges the process of playing.
Above-mentioned video camera is set on support frame, and support frame as described above is set to above fingerboard；The microprocessor, power supply mould
Block wireless communication module, memory module, analyzes comparison unit, plays standard degree marking unit and note data acquisition list
Member is set in control cabinet, and control cabinet is set on support frame as described above.
Above-mentioned microprocessor is also connect with the key press prompt modulating signal being set on each piano key, when some piano
When pressure sensor on key detects pressure signal, then the microprocessor is according to the pressure signal received, control
Key press warning light on the piano key of place is lighted, when the pressure signal received by the microprocessor disappears, control
Make key press warning light extinguishing.
Above-mentioned microprocessor also signal is connected with the USB data interface for more new standard music score of Chinese operas data.
Above-mentioned microprocessor also signal is connected with player's identity recognizing unit, and player's identity recognizing unit is used for
Establish and identify the identity account information of player.
Above-mentioned microprocessor is the PLC controller or MSP430 single-chip microcontroller of model OMRON CP1E-N20DR-D.
Beneficial effects of the present invention: the present invention provides a kind of piano playing teaching auxiliary devices, can be in student's piano
The effect of playing of oneself is timely known during playing practice, and can timely obtain the judge of counselor, energy
It is enough timely supplied to piano playing practitioner one and plays effect with reference to conclusion, student can greatly be promoted to learn piano
Efficiency.
Detailed description of the invention
Fig. 1 is electric system connection block diagram of the invention；
Fig. 2 is the appearance diagram that apparatus of the present invention are installed on piano.
Specific embodiment
With reference to the accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection scope be not limited by the specific implementation.
Referring to shown in Fig. 1 and Fig. 2, present embodiments providing a kind of piano playing teaching auxiliary device, comprising: several pressures
Force snesor 4 is correspondingly arranged on 3 upper surface of each piano key of piano 1, for detecting player to each piano key 3
Press condition, wherein press condition includes determining which corresponding key, adjacent key institute's generation triggered by press pressure
Compressing time interval between the note of table etc.；Note data acquisition unit, for according to detected by the pressure sensor 4
Player's finger press condition determine the note of note information representated by the piano key 3 where the pressure sensor 4
Data acquisition unit；Storage unit, for storing standard music score of Chinese operas data and note data acquisition unit note letter collected
What breath was constituted plays music score of Chinese operas data, and the standard of the first song of standard music score of Chinese operas data i.e. one performs music, plays music score of Chinese operas data and drill
The music that the person of playing plays out to the song；Comparison unit is analyzed, for carrying out standard music score of Chinese operas data with music score of Chinese operas data are played
Analysis comparison, analyzes the difference between them, and the standard degree detonieren situation that player plays specifically gives the music of performance
Departure degree value between standard music；Standard degree marking unit is played, for exporting according to analysis comparison unit
Analysis comparing result give a mark, according to departure degree value between the music specifically played and standard music to being performed
Play fractional value；Wireless communication module, for will play that standard degree marking unit obtained to play standard degree score wireless
And it plays music score of Chinese operas data and is sent to teacher's reception terminal, while the performance achievement that teacher's reception terminal is obtained wirelessly being passed
It returns；Microprocessor, for receiving note data acquisition unit note information collected and by the note information with bullet
It plays music score of Chinese operas data to be stored in the storage unit, while for receiving the standard degree marking unit of playing to the analysis
The marking of comparing result, and the score of the marking is wirelessly transmitted to teacher by the wireless communication module and receives terminal；
It is also used to coordinate above-mentioned each unit and module works；Power module, for entire piano playing teaching auxiliary device work
It powers.The present embodiment can timely know the effect of playing of oneself, and energy during student's piano playing is practiced
Enough judges for timely obtaining counselor can timely be supplied to piano playing practitioner one and play effect with reference to knot
By, can greatly promote student learn piano efficiency.
Further, the microprocessor also signal, which is connected with, plays achievement output unit, and the performance achievement output is single
Performance achievement of the member for being obtained teacher's reception terminal exports, and the performance achievement output unit is display screen or printing
Machine.
Further, the microprocessor also signal is connected with video camera 7, and the video camera 7 is used to play in player
During record a video to keyboard, and Video content is sent to the microprocessor, the microprocessor passes through the nothing
Line communication module by Video content be sent to teacher receive terminal, consequently facilitating teacher receive terminal teacher to the process of playing into
Row is more fully judged.
Further, the video camera 7 is set on support frame 2, and support frame as described above 2 is set to above fingerboard；It is described micro-
Processor, wireless communication module, memory module, analyzes comparison unit, plays standard degree marking unit and sound power module
Symbol data acquisition unit is set in control cabinet 6, and control cabinet 6 is set on support frame as described above 2.
Further, the microprocessor also connects with 5 signal of key press warning light being set on each piano key 3
It connects, when the pressure sensor 4 on some piano key 3 detects pressure signal, then the microprocessor is according to receiving
The pressure signal, the key press warning light 5 where control on piano key 3 are lighted, should received by the microprocessor
When pressure signal disappears, the key press warning light 5 extinguishing is controlled, which can easily observe by the light on and off of warning light
Key is pressed.
Further, the microprocessor also signal is connected with the USB data interface for more new standard music score of Chinese operas data.
Further, the microprocessor also signal is connected with player's identity recognizing unit, and player's identity is known
Other unit is used to establishing and identifying the identity account information of player, by establish account information can to different players into
Row especially practice and marking.
Further, the microprocessor be model OMRON CP1E-N20DR-D PLC controller or MSP430 it is mono-
Piece machine.
In conclusion the present invention provides a kind of piano playing teaching auxiliary devices, it mainly include being set to each of piano
Multiple pressure sensors of piano key upper surface, note data acquisition unit, storage unit analyze comparison unit, play mark
Quasi- degree marking unit, wireless communication module and microprocessor, the microprocessor receive the note data acquisition unit
The note information is simultaneously stored in the storage unit by note information collected with playing music score of Chinese operas data, while receiving institute
The marking for playing standard degree marking unit to the analysis comparing result is stated, and the score of the marking is passed through described wireless
Communication module is wirelessly transmitted to teacher and receives terminal, and microprocessor also coordinates above-mentioned each unit and module works.The present invention
The effect of playing of oneself can be timely known, and can timely be referred to during student's piano playing is practiced
The judge of teacher is led, piano playing practitioner one can be timely supplied to and play effect with reference to conclusion, can greatly promote
Learn the efficiency of piano into student.
Disclosed above is only several specific embodiments of the invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (8)
1. a kind of piano playing teaching auxiliary device characterized by comprising
Several pressure sensors (4) are correspondingly arranged on each piano key (3) upper surface of piano (1), are played for detecting
Press condition of the person to each piano key (3)；
Note data acquisition unit, for player's finger press condition according to detected by the pressure sensor (4) come
Determine the note data acquisition unit of note information representated by the piano key (3) where the pressure sensor (4)；
Storage unit, for storing standard music score of Chinese operas data and note data acquisition unit note information collected constituted
Play music score of Chinese operas data；
Comparison unit is analyzed, for by standard music score of Chinese operas data and playing music score of Chinese operas data and carrying out analysis comparison；
Standard degree marking unit is played, for being beaten according to the analysis comparing result of output described in analysis comparison unit
Point；
Wireless communication module, for playing of will playing that standard degree marking unit obtained, standard degree score is wireless and bullet
It plays music score of Chinese operas data and is sent to teacher's reception terminal, while the performance achievement that teacher's reception terminal is obtained wirelessly being passed back；
Microprocessor, for receiving note data acquisition unit note information collected and by the note information with bullet
It plays music score of Chinese operas data to be stored in the storage unit, while for receiving the standard degree marking unit of playing to the analysis
The marking of comparing result, and the score of the marking is wirelessly transmitted to teacher by the wireless communication module and receives terminal；
It is also used to coordinate above-mentioned each unit and module works；
Power module is powered for working to entire piano playing teaching auxiliary device.
2. a kind of piano playing teaching auxiliary device as described in claim 1, which is characterized in that the microprocessor also signal
It is connected with and plays achievement output unit, the performance achievement played achievement output unit and be used to be obtained teacher's reception terminal
Output, the performance achievement output unit is display screen or printer.
3. a kind of piano playing teaching auxiliary device as described in claim 1, which is characterized in that the microprocessor also signal
It is connected with video camera (7), the video camera (7) is used to record a video to keyboard during player plays, and will video recording
Content is sent to the microprocessor, and Video content is sent to teacher by the wireless communication module and connect by the microprocessor
Terminal is received, consequently facilitating the teacher that teacher receives terminal judges the process of playing.
4. a kind of piano playing teaching auxiliary device as claimed in claim 3, which is characterized in that the video camera (7) is set to
On support frame (2), support frame as described above (2) is set to above fingerboard；The microprocessor, power module, wireless communication module,
Memory module, analyze comparison unit, play standard degree marking unit and note data acquisition unit be set to control cabinet (6)
Interior, control cabinet (6) is set on support frame as described above (2).
5. a kind of piano playing teaching auxiliary device as described in claim 1, which is characterized in that the microprocessor also with set
Pressure sensing in key press warning light (5) the signal connection on each piano key (3), on some piano key (3)
When device (4) detects pressure signal, then the microprocessor is according to the pressure signal received, piano key where control
(3) the key press warning light (5) on is lighted, and when the pressure signal received by the microprocessor disappears, is controlled this and is pressed
Key pressing warning light (5) extinguishes.
6. a kind of piano playing teaching auxiliary device as described in claim 1, which is characterized in that the microprocessor also signal
It is connected with the USB data interface for more new standard music score of Chinese operas data.
7. a kind of piano playing teaching auxiliary device as described in claim 1, which is characterized in that the microprocessor also signal
It is connected with player's identity recognizing unit, player's identity recognizing unit is used to establish and identify the identity account of player
Information.
8. a kind of piano playing teaching auxiliary device as described in claim 1, which is characterized in that the microprocessor is model
For the PLC controller or MSP430 single-chip microcontroller of OMRON CP1E-N20DR-D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846765.5A CN108961919A (en) | 2018-07-27 | 2018-07-27 | A kind of piano playing teaching auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846765.5A CN108961919A (en) | 2018-07-27 | 2018-07-27 | A kind of piano playing teaching auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108961919A true CN108961919A (en) | 2018-12-07 |
Family
ID=64466252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810846765.5A Pending CN108961919A (en) | 2018-07-27 | 2018-07-27 | A kind of piano playing teaching auxiliary device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108961919A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671332A (en) * | 2019-02-24 | 2019-04-23 | 苏州缪斯谈谈科技有限公司 | A kind of musical instrument auxiliary intelligent tutoring system and its teaching method |
| CN110010108A (en) * | 2019-04-20 | 2019-07-12 | 河南科技学院 | Intelligent music tutoring system |
| CN110379255A (en) * | 2019-08-08 | 2019-10-25 | 厦门大学嘉庚学院 | A kind of piano playing dynamics teaching auxiliary device |
| CN111179669A (en) * | 2019-12-27 | 2020-05-19 | 广东德诚科教有限公司 | Method and device for quantifying physical mechanics experiment result, terminal and storage medium |
| CN111739481A (en) * | 2020-07-21 | 2020-10-02 | 周伟荣 | Carinba playing auxiliary device |
| CN112652209A (en) * | 2020-12-21 | 2021-04-13 | 河南理工大学 | A solfeggio trainer that is arranged in basic music branch of academic or vocational study teaching |
| CN112951032A (en) * | 2021-02-05 | 2021-06-11 | 衡阳师范学院 | Multi-functional correcting unit of supplementary piano teaching |
| CN113539015A (en) * | 2021-07-22 | 2021-10-22 | 宿州学院 | Music theory learning device convenient for colleges and universities |
| CN113674565A (en) * | 2021-08-25 | 2021-11-19 | 桂林智神信息技术股份有限公司 | Teaching system and method for piano teaching |
| WO2023107052A3 (en) * | 2021-12-10 | 2023-10-26 | Istanbul Teknik Universitesi | A measurement and feedback system developed for keyboard instruments education |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145288A (en) * | 2007-08-03 | 2008-03-19 | 上海欧亚钢琴乐器有限公司 | Piano remote-distance teaching system based on broad band internet |
| CN204463805U (en) * | 2015-03-12 | 2015-07-08 | 广州东呈电子有限公司 | Smart electronics piano |
| CN106297750A (en) * | 2016-01-19 | 2017-01-04 | 陈文斌 | Fingerboard digital signal output system |
| CN106355962A (en) * | 2016-11-21 | 2017-01-25 | 临沂大学 | Music teaching system and music teaching method |
| CN106935226A (en) * | 2017-02-14 | 2017-07-07 | 捷开通讯(深圳)有限公司 | Piano with scoring function and its method for being scored |
| CN107093347A (en) * | 2016-02-18 | 2017-08-25 | 起鼓音乐文化有限公司 | Intelligence auxiliary percussion music learning system and its method |
| CN107146599A (en) * | 2017-03-29 | 2017-09-08 | 华东交通大学 | A kind of piano intelligently plays training system |
| CN107862924A (en) * | 2017-12-20 | 2018-03-30 | 佳木斯大学 | A kind of vocals intelligent tutoring system and its adjusting method |
| CN107993519A (en) * | 2018-01-22 | 2018-05-04 | 牡丹江师范学院 | A kind of piano intelligently plays training system |
-
2018
- 2018-07-27 CN CN201810846765.5A patent/CN108961919A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145288A (en) * | 2007-08-03 | 2008-03-19 | 上海欧亚钢琴乐器有限公司 | Piano remote-distance teaching system based on broad band internet |
| CN204463805U (en) * | 2015-03-12 | 2015-07-08 | 广州东呈电子有限公司 | Smart electronics piano |
| CN106297750A (en) * | 2016-01-19 | 2017-01-04 | 陈文斌 | Fingerboard digital signal output system |
| CN107093347A (en) * | 2016-02-18 | 2017-08-25 | 起鼓音乐文化有限公司 | Intelligence auxiliary percussion music learning system and its method |
| CN106355962A (en) * | 2016-11-21 | 2017-01-25 | 临沂大学 | Music teaching system and music teaching method |
| CN106935226A (en) * | 2017-02-14 | 2017-07-07 | 捷开通讯(深圳)有限公司 | Piano with scoring function and its method for being scored |
| CN107146599A (en) * | 2017-03-29 | 2017-09-08 | 华东交通大学 | A kind of piano intelligently plays training system |
| CN107862924A (en) * | 2017-12-20 | 2018-03-30 | 佳木斯大学 | A kind of vocals intelligent tutoring system and its adjusting method |
| CN107993519A (en) * | 2018-01-22 | 2018-05-04 | 牡丹江师范学院 | A kind of piano intelligently plays training system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671332A (en) * | 2019-02-24 | 2019-04-23 | 苏州缪斯谈谈科技有限公司 | A kind of musical instrument auxiliary intelligent tutoring system and its teaching method |
| CN110010108A (en) * | 2019-04-20 | 2019-07-12 | 河南科技学院 | Intelligent music tutoring system |
| CN110379255A (en) * | 2019-08-08 | 2019-10-25 | 厦门大学嘉庚学院 | A kind of piano playing dynamics teaching auxiliary device |
| CN111179669A (en) * | 2019-12-27 | 2020-05-19 | 广东德诚科教有限公司 | Method and device for quantifying physical mechanics experiment result, terminal and storage medium |
| CN111739481A (en) * | 2020-07-21 | 2020-10-02 | 周伟荣 | Carinba playing auxiliary device |
| CN112652209A (en) * | 2020-12-21 | 2021-04-13 | 河南理工大学 | A solfeggio trainer that is arranged in basic music branch of academic or vocational study teaching |
| CN112951032A (en) * | 2021-02-05 | 2021-06-11 | 衡阳师范学院 | Multi-functional correcting unit of supplementary piano teaching |
| CN113539015A (en) * | 2021-07-22 | 2021-10-22 | 宿州学院 | Music theory learning device convenient for colleges and universities |
| CN113674565A (en) * | 2021-08-25 | 2021-11-19 | 桂林智神信息技术股份有限公司 | Teaching system and method for piano teaching |
| CN113674565B (en) * | 2021-08-25 | 2024-04-26 | 桂林智神信息技术股份有限公司 | Teaching system and method for piano teaching |
| WO2023107052A3 (en) * | 2021-12-10 | 2023-10-26 | Istanbul Teknik Universitesi | A measurement and feedback system developed for keyboard instruments education |
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Application publication date: 20181207 |