CN106098034A - Piano intelligence key shelves device of pressing - Google Patents
Piano intelligence key shelves device of pressing Download PDFInfo
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- CN106098034A CN106098034A CN201610609827.1A CN201610609827A CN106098034A CN 106098034 A CN106098034 A CN 106098034A CN 201610609827 A CN201610609827 A CN 201610609827A CN 106098034 A CN106098034 A CN 106098034A
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 230000001020 rhythmical effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
- G10G1/00—Means for the representation of music
- G10G1/02—Chord or note indicators, fixed or adjustable, for keyboard of fingerboards
-
- 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
- G09B15/02—Boards or like means for providing an indication of notes
-
- 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
- G10C3/06—Resonating means, e.g. soundboards or resonant strings; Fastenings thereof
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0008—Associated control or indicating means
- G10H1/0016—Means for indicating which keys, frets or strings are to be actuated, e.g. using lights or leds
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- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Auxiliary Devices For Music (AREA)
Abstract
The invention provides an intelligent key pressing rail device for a piano, which comprises a key pressing rail body, a key state acquisition component, a control mainboard, a fixed connecting plate and a guide indicator light component, wherein the key pressing rail body is provided with a plurality of key pressing rails; the key state acquisition component is arranged at the bottom of the key pressing rail body, the guide indicator light component is arranged on the front of the key pressing rail body, the control mainboard is arranged inside the key pressing rail body, and the key pressing rail body presses on keys of a piano; the fixed connecting plate is arranged on the back of the key pressing stopper body; the key state acquisition component and the guide indicator light component are electrically connected with the control mainboard. The invention has the advantages that: the electronic device is used for replacing the field pointing of a teacher, so that the playing accuracy of students and the mastering degree of rhythmicity can be greatly improved, and the teaching quality is improved; the installation and maintenance are all very convenient, and can not destroy mechanical piano's original acoustic structure, can ensure that the effect of playing is not influenced.
Description
Technical field
The present invention relates to a kind of piano key press baffle, refer in particular to a kind of piano intelligence pressure key latch device.
Background technology
Piano is derived from a kind of keyboard instrument in western classicality music, is made up of 88 keys and metallic cord soundboard, general
All over for solo, play again, the performance such as accompaniment, music of wrirting music and rehearse is very convenient.Player by pressing the key on key,
Affecting the gavel that enclose carpet inside piano, then tap steel wire string and send sound, piano is referred to as the king of musical instrument.This is not only
It is owing to its volume is maximum, internal structure is the most complicated, topmost or due to its excellent comprehensive performance and use widely
Way is all that other any musical instruments cannot be intended by comparison.
Current piano kind is divided into pianotron and mechanical piano substantially, and pianotron is electrophonic musical instrument, and machined steel
Qin is then that mechanical-physical purely occurs, and string shakes, qin boominess resonance and produce.Although at present it is practical with it for pianotron
Property and superiority of effectiveness compare is favored by user, but mechanical piano with its real voice effect and perfectly plays feel
It is that pianotron cannot be substituted.When particularly accepting the piano study of system, mechanical piano remains difficult point and the weight of study
Point.There is a difficult point in traditional mechanical piano study, it is simply that the playing information of mechanical piano cannot objectively gather, the most all
Needing that teacher is the most continual to be listened to, whether bullet is wrong to judge student by the sound sent, and the most instant points out mistake
And guiding corrigendum, this just brings Railway Project: first by mistake, and counselor can not accompany always learn at one's side, and student is alone
During exercise mechanical piano, the most unmanned discovery in time of its mistake played is pointed out；Second, the memory of counselor is to have
Limit, possibly cannot remember student play during each mistake play action, many unconspicuous mistakes may be missed,
The study of system sturdy to student is disadvantageous.
Applicant is in filing date 2015.10.28, and Application No. 201520841588.3 is applied for and discloses a kind of keyboard
The Chinese utility model patent of human-computer interaction device played by musical instrument, and this human-computer interaction device can substitute the artificial indication of teacher,
Improve student to playing accuracy and rhythmic power of a test.But this human-computer interaction device there are following defect: 1, by qin
Key harvester is arranged on the lower section of key, and being required for first removing key when installing and keep in repair can install or keep in repair,
Therefore install and repair the most highly inconvenient, and the requirement to tearing key and installation key open is the highest, it is necessary to by specialty
Personage dismount；2, key harvester is arranged on the lower section of key, and this can change original acoustic construction, and may shadow
Ring to sound effect；3, piano is in use, and the gap that dust, water droplet etc. are easy between key enters into the lower section of key,
This can badly influence the collection effect of key harvester.
Pressure key shelves are the parts that every piano all have to use, and what existing pressure key shelves used is all wooden reality
Heart pressure key shelves, pressure key shelves mainly have following two effect: 1, be pressed on key, prevent key from bouncing；2, qin lid is supported.As
Key harvester etc. can all be arranged on pressure key shelves by fruit, and above-mentioned many defects can effectively be solved.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of piano intelligence pressure key latch device, is filled by these pressure key shelves
Put the on-the-spot indication substituting teacher, the accuracy that raising student plays and the power of a test to rhythm, and then improve teaching
Quality.
The present invention is achieved in that a kind of piano intelligence pressure key latch device, including a pressure key shelves body, a key state
Acquisition member, a control mainboard, a fixed connecting plate, an intelligent terminal and guide display lamp component；Described intelligent terminal
Electrically connect with described control mainboard；
Described key state acquisition component is arranged on the bottom of described pressure key shelves body, and described guiding display lamp component is arranged
In the front of described pressure key shelves body, described control mainboard is arranged on the inside of described pressure key shelves body, described pressure key shelves body
It is pressed on the key of piano；Described fixed connecting plate is arranged on the back side of described pressure key shelves body；Described key state acquisition structure
Part and guiding display lamp component all electrically connect with described control mainboard, and control described key state by described control mainboard
Acquisition member gather key state, and control described guiding display lamp component carry out key state instruction and the music score of Chinese operas guide refer to
Show.
Further, also include that a light-passing board, described light-passing board stick to the top of described guiding display lamp component.
Further, also including two bump contacted chips, connection sheet described in two is locked respectively and is paid at described pressure key shelves body bottom portion
Two ends, every described connection sheet all offers a bar hole；The two ends of described pressure key shelves body are in the position of corresponding described bar hole
Put and be each provided with a through hole.
Further, the end of described pressure key shelves body is provided with a USB interface or blue tooth interface, and described control mainboard leads to
Cross described USB interface or blue tooth interface is connected to described intelligent terminal.
Further, described pressure key shelves body includes an aluminium alloy pressure key shell body, including this aluminium alloy pressure key shell body
The middle part of side is provided with a division board, and the bottom of this division board is provided with one first slot；Described aluminium alloy pressure key shell body
Front is an inclined plane, and the lower surface of described inclined plane is provided with one second slot, and this second slot is positioned at described division board
Top；Offering a transverse opening in described inclined plane, described light-passing board sticks on described transverse opening.
Further, described control mainboard is fixedly arranged on described division board, and described control mainboard is provided with five cores
Bus interface circuit, six core bus interface circuit, a piece of STM32F103c8T6 chip, usb circuit, one
Debugging interface circuit, a status indicator lamp circuit, a crystal oscillating circuit, a reset circuit and a blue tooth interface electricity
Road；The pin 5,6 of described STM32F103c8T6 chip is connected with described crystal oscillating circuit, described STM32F103c8T6 chip
Pin 7 is connected with described reset circuit, and the pin 15,16,17 of described STM32F103c8T6 chip connects with described six core buses
Mouth circuit is connected, and the pin 30,31 of described STM32F103c8T6 chip is connected with described blue tooth interface circuit, described
The pin 10,27,28 of STM32F103c8T6 chip is connected with described five core bus interface circuits, described STM32F103c8T6
The pin 34,37 of chip is connected with described debugging interface circuit, the pin of described STM32F103c8T6 chip 32,33,38 with
Described usb circuit is connected, pin 41,42,43,45 and the described status indicator lamp of described STM32F103c8T6 chip
Circuit is connected.
Further, described key state acquisition component includes a sensing pcb board and 88 reflection infrared sensors,
Described sensing pcb board is inserted in described first slot, and 88 described reflection infrared sensors are disposed side by side on described sensing
The bottom of pcb board, and the bottom of every described reflection infrared sensor all abuts with a key；88 described reflective infrared biographies
Sensor is all connected to described control mainboard by described sensing pcb board.
Further, described sensing pcb board is provided with 11 74HC164 chips being cascaded and with described
The CON1 interface that five core bus interface circuits are connected, the positive pole of the transmitting tube of each described reflection infrared sensor is all connected in parallel on
Together, and being connected with 3.3V voltage by a resistance, 3.3V voltage is connected with the positive terminal of described CON1 interface；Every described
The negative pole receiving pipe of the negative pole of the transmitting tube of reflection infrared sensor and this reflection infrared sensor is all with described
One outfan of 74HC164 chip is connected；The positive pole receiving pipe of each described reflection infrared sensor is all connected in parallel on one
Rise, and be connected with the common condition voltage end of described CON1 interface；The data input pin of 74HC164 chip described in first with
The serial data end of described CON1 interface is connected；The earth terminal of each described 74HC164 chip is all connected in parallel ground connection, and with
The earth terminal of described CON1 interface is connected；The input end of clock of each described 74HC164 chip all with described CON1 interface time
Zhong Duan is connected；The RESET input of each described 74HC164 chip is all connected with 3.3V voltage with power input.
Further, described guiding display lamp component includes a display lamp pcb board, 88 status indicator LED lamps and 88
Individual guiding indication LED lamp；Described display lamp pcb board is inserted in described second slot, each described status indicator LED lamp and guiding
Indication LED lamp is arranged on described display lamp pcb board, and makes each described status indicator LED lamp and guide the equal court of indication LED lamp
To described transverse opening；Each described status indicator LED lamp and guiding indication LED lamp are all connected to by described display lamp pcb board
Described control mainboard.
Further, described display lamp pcb board is provided with 12 MBI5026 chips being cascaded and one and institute
State the CON2 interface that six core bus interface circuits are connected；The positive pole of each described status indicator LED lamp and guiding indication LED lamp is equal
Being connected in parallel, and be connected with 5V voltage, 5V voltage is connected with the 5V positive terminal of described CON2 interface；Every described state refers to
Show that the negative pole of LED is all connected with an outfan of described MBI5026 chip, the negative pole of every described guiding indication LED lamp
All it is connected with an outfan of described MBI5026 chip；The power input of each described MBI5026 chip is all electric with 3.3V
Pressure is connected, and 3.3V voltage is connected with the 3.3V positive terminal of described CON2 interface；The earth terminal of every described MBI5026 chip and
Enable the equal ground connection of input, and be connected with the earth terminal of described CON2 interface, the resistance outfan of every described MBI5026 chip
All by a regulation resistance eutral grounding；The serial data input of MBI5026 chip described in first and the string of described CON2 interface
Row data terminal is connected；The input end of clock of each described MBI5026 chip all clock ends with described CON2 interface are connected, respectively
The data of described MBI5026 chip are dodged control input and are all connected with the sudden strain of a muscle control end of described CON2 interface.
Present invention have the advantage that 1, the present invention by increasing electronic device on traditional mechanical piano, utilize electricity
Sub-device substitutes the on-the-spot indication of teacher, can be greatly improved accuracy that student plays and to rhythmic power of a test,
Improve the quality of teaching；2, by key state acquisition component being arranged on pressure key shelves, not only install and repair the most extremely
Convenient, and original acoustic construction of mechanical piano will not be corrupted to, it can be ensured that play effect unaffected；3, in use
During, dust, water droplet etc. are all not easily accessed inside pressure key shelves, it is possible to achieve adopt key state accurately
Collection.
Accompanying drawing explanation
The present invention is further illustrated the most in conjunction with the embodiments.
Fig. 1 is the structural representation of piano intelligence of the present invention pressure key latch device.
Fig. 2 is the side view of piano intelligence of the present invention pressure key latch device.
Fig. 3 is the side view of aluminium alloy pressure key shell body in the present invention.
Fig. 4 is the structural representation connecting sheet in the present invention.
Fig. 5 is the front schematic view (removing light-passing board) of aluminium alloy of the present invention pressure key shell body.
Fig. 6 is the front view of piano intelligence of the present invention pressure key latch device.
Fig. 7 is the circuit structure diagram sensing pcb board in the present invention.
Fig. 8 is the circuit structure diagram of display lamp pcb board in the present invention.
Fig. 9 is the circuit structure diagram controlling mainboard in the present invention.
Detailed description of the invention
Refer to shown in Fig. 1 to Fig. 9, a kind of piano intelligence pressure key latch device 100, including pressure key shelves body 1, key
State acquisition component 2, one control mainboard 3, guide display lamp component 4, intelligent terminal (not shown), a light-passing board 5 and
Two bump contacted chips 6；Described intelligent terminal (such as panel computer etc.) electrically connects with described control mainboard 3；
Described key state acquisition component 2 is arranged on the bottom of described pressure key shelves body 1, described guiding display lamp component 4
Being arranged on the front of described pressure key shelves body 1, described control mainboard 3 is arranged on the inside of described pressure key shelves body 1, described pressure key
Shelves body 1 is pressed on the key of piano；Described key state acquisition component 2 and guide display lamp component 4 all with described control
Mainboard 3 electrically connects, and controls described key state acquisition component 2 by described control mainboard 3 and gather key state, and controls
Described guiding display lamp component 4 carries out the instruction of key state and the music score of Chinese operas guides instruction.
The end of described pressure key shelves body 1 is provided with a USB interface 7 or blue tooth interface (not shown), described control mainboard 3
It is connected to described intelligent terminal by described USB interface 7 or blue tooth interface (not shown).So, in the mistake carrying out piano playing
Cheng Zhong, it is possible to the music score of Chinese operas and the key state collected are shown on intelligent terminal, it is also possible to realize intelligent terminal and control
Mutual (such as can carry out song transmission etc.) of other data between mainboard 3.
Described light-passing board 5 sticks to the top of described guiding display lamp component 4, and this light-passing board 5 is possible to prevent dust adhesion
To guiding on display lamp component 4, it is favorably improved the display effect of display lamp and plays the effect of protection display lamp.
Please emphasis with reference to shown in Fig. 4, connect sheet 6 described in two and lock the two ends pair bottom described pressure key shelves body 1 respectively, often
A bar hole 61 is all offered on described connection sheet 6；The two ends of described pressure key shelves body 1 are in the position of corresponding described bar hole 61
It is each provided with a through hole 111.When installing pressure key shelves body 1, can use screw (not shown) that connection sheet 6 is locked at piano
On, and then realize being fixed on piano pressure key shelves body 1.In the specific implementation, the back of pressure key shelves body 1 is provided with one admittedly
Determining connecting plate 16, this fixed connecting plate 16 can be fixed together with the fixing bar (not shown) being arranged on piano, with
This pressure key shelves body 1 is played further fixation.
Please emphasis with reference to shown in Fig. 3, described pressure key shelves body 1 includes an aluminium alloy pressure key shell body 11, this aluminium alloy pressure
Key shell body 11 is provided with a division board 12 at the middle part of inner side, and the bottom of this division board 12 is provided with one first slot 13；Institute
The front stating aluminium alloy pressure key shell body 11 is an inclined plane 112, and the lower surface of described inclined plane 112 is provided with one second slot
14, and this second slot 14 is positioned at the top of described division board 12；Offer in described inclined plane 112 transverse opening 15 (as
Shown in Fig. 5), described light-passing board 5 sticks on described transverse opening 15.
Please emphasis with reference to shown in Fig. 9, described control mainboard 3 is fixedly arranged on described division board 12, and described control mainboard 3 sets
It is equipped with 31, six core bus interface circuit 32 of a five core bus interface circuit, a piece of STM32F103c8T6 chip 33,
34, debugging interface circuit of individual usb circuit, 36, crystal oscillating circuit of 35, status indicator lamp circuit 37, one is multiple
Position circuit 38 and a blue tooth interface circuit 39；Pin 5,6 and the described crystal oscillating circuit of described STM32F103c8T6 chip 33
37 are connected, and this crystal oscillating circuit 37 is used for providing clock；The pin 7 of described STM32F103c8T6 chip 33 and the described electricity that resets
Road 38 is connected, and this reset circuit 38 is for realizing the reset function of STM32F103c8T6 chip 33；Described
The pin 15,16,17 of STM32F103c8T6 chip 33 is connected with described six core bus interface circuits 32, and this six cores bus connects
Mouthful circuit 32 for realizing and docking of guiding display lamp component 4, the pin 30,31 of described STM32F103c8T6 chip 33 with
Described blue tooth interface circuit 39 is connected, for realizing the data interaction with intelligent terminal；Described STM32F103c8T6 chip 33
Pin 10,27,28 be connected with described five core bus interface circuits 31, this five cores bus interface circuit 31 is for realizing and qin
The docking of bonded state acquisition member 2；Pin 34,37 and the described debugging interface circuit 35 of described STM32F103c8T6 chip 33
Being connected, this debugging interface circuit 35 is for realizing the debugging of STM32F103c8T6 chip 33；Described STM32F103c8T6 core
The pin 32,33,38 of sheet 33 is connected with described usb circuit 34, for realizing the data interaction with intelligent terminal；Described
The pin 41,42,43,45 of STM32F103c8T6 chip 33 is connected with described status indicator lamp circuit 36, is used for indicating
The duty of STM32F103c8T6 chip 33.
Described key state acquisition component 2 includes a sensing pcb board 21 and 88 reflection infrared sensor 22 (i.e. U1
～U88), described sensing pcb board 21 is inserted in described first slot 13, and 88 described reflection infrared sensors 22 set side by side
Put the bottom at described sensing pcb board 21, and the bottom of every described reflection infrared sensor 22 all abuts with a key, with reality
Now detection in real time and the collection to each key state；88 described reflection infrared sensors 22 are all by described sensing pcb board
21 are connected to described control mainboard 3.Due to press key and release key time, between reflection infrared sensor 22 and key
Distance can change, by will apart from change change into change in voltage and send to control mainboard be acquired and analyze,
Just can draw the real-time status of key.
Please emphasis with reference to shown in Fig. 7, described sensing pcb board 21 is provided with 11 74HC164 chips being cascaded
211 (i.e. including IC1～IC11 sheet 74HC164 chip) and a CON1 being connected with described five core bus interface circuits 31 connect
Mouthfuls 212, the positive pole A of the transmitting tube of each described reflection infrared sensor 22 is all connected in parallel, and by a resistance R1 with
3.3V voltage is connected, and 3.3V voltage is connected with the positive terminal VCC of described CON1 interface 212；Every described reflective infrared biography
The negative pole E receiving pipe of the negative pole K of the transmitting tube of sensor 22 and this reflection infrared sensor 22 all with described 74HC164 chip
One outfan of 211 is connected；The positive pole C receiving pipe of each described reflection infrared sensor 22 is all connected in parallel, and
It is connected with the common condition voltage end ADC of described CON1 interface 212；74HC164 chip 211 (i.e. IC1) described in first
Data input pin (A with B) is connected with the serial data end SDA of described CON1 interface 212, and each 74HC164 chip 211 is at string
During connection, the data input pin (A and B) of rear a piece of 74HC164 chip 211 all with an outfan of front a piece of 74HC164 chip 211
It is connected, thus realizes being cascaded 11 pieces of 74HC164 chips 211；The earth terminal of each described 74HC164 chip 211 is equal
Be connected in parallel ground connection, and is connected with the earth terminal GND of described CON1 interface 212；Each described 74HC164 chip 211 time
Clock input is all connected with the clock end SCL of described CON1 interface 212；The RESET input of each described 74HC164 chip 211
All it is connected with 3.3V voltage with power input.
Described guiding display lamp component 4 includes that 41,88 status indicator LED lamps 42 of a display lamp pcb board (i.e. include LED_
B1～LED_B88) and 88 guiding indication LED lamp 43 (i.e. including LED_R1～LED_R88)；Described display lamp pcb board 41
Being inserted in described second slot 14, each described status indicator LED lamp 42 and guiding indication LED lamp 43 are arranged at described instruction
On lamp pcb board 41, and make each described status indicator LED lamp 42 and guide indication LED lamp 43 all towards described transverse opening 15；Respectively
Described status indicator LED lamp 42 and guiding indication LED lamp 43 are all connected to described control mainboard by described display lamp pcb board 41
3.In the specific implementation, status indicator LED lamp 42 can use blue lamp, guides indication LED lamp 43 can use red colored lamp, with
Conveniently two kinds of lamps are made a distinction；Wherein, status indicator LED lamp 42 is for indicating the state of key, when some is reflective red
Outer sensor 22 detects when key is pressed, and the status indicator LED lamp 42 corresponding to this key just lights blue lamp, when this qin
After key is released, status indicator LED lamp 42 just extinguishes；Guide indication LED lamp 43 for guiding student to need to play according to the music score of Chinese operas
Which key, the most now needs to press first key, then the guiding indication LED lamp 43 corresponding to first key is the brightest
Playing red light, after student presses first key, this guiding indication LED lamp 43 corresponding to first key just extinguishes.So,
Student practice on the piano play time, avoided the need for teacher and aside instructed, it is only necessary to according to guide indication LED lamp 43 guiding
Playing, and student is after pressing key, corresponding status indicator LED lamp 42 will be light, and student can be the most directly perceived
Find out oneself play the most correct.
Please emphasis with reference to shown in Fig. 8, described display lamp pcb board 41 is provided with 12 MBI5026 cores being cascaded
Sheet 411 (i.e. including IC1～IC12 sheet MBI5026 chip) and a CON2 being connected with described six core bus interface circuits 32
Interface 412；Each described status indicator LED lamp 42 and guide the positive pole of indication LED lamp 43 to be all connected in parallel, and with 5V voltage phase
Connecting, 5V voltage is connected with the 5V positive terminal of described CON2 interface 412；The negative pole of every described status indicator LED lamp 42 all with
One outfan of described MBI5026 chip 411 is connected, and the negative pole of every described guiding indication LED lamp 43 is all with described
One outfan of MBI5026 chip 411 is connected；The power input of each described MBI5026 chip 411 all with 3.3V voltage
Being connected, 3.3V voltage is connected with the 3.3V positive terminal of described CON2 interface 412；The ground connection of every described MBI5026 chip 411
End and the enable equal ground connection of input, and be connected with the earth terminal GND of described CON2 interface 412, every described MBI5026 chip
The resistance outfan of 411 all by one regulation resistance (MBI5026 chip IC 1～IC12 respectively be correspondingly arranged regulation resistance R1～
R12) ground connection；The serial data input of MBI5026 chip 411 described in first and the serial data of described CON2 interface 412
End SIN is connected, and each MBI5026 chip 411 is when series connection, and the serial data input of rear a piece of MBI5026 chip 411 is equal
It is connected with the data output end of front a piece of MBI5026 chip 411, thus realizes 12 pieces of MBI5026 chips 411 are connected on one
Rise；The input end of clock of each described MBI5026 chip 411 is all connected with the clock end CLK of described CON2 interface 412, each institute
The data sudden strain of a muscle control input stating MBI5026 chip 411 is all connected with the sudden strain of a muscle control end LAT of described CON2 interface 412.
Intelligence of the present invention pressure key latch device 100 when mounted, can be by connecting sheet 6 and fixed connecting plate 16 by this pressure key
Latch device 100 is fixedly installed on the key of piano.In use, by USB interface 7 or blue tooth interface, intelligence can be pressed key
Latch device 100 is connected with intelligent terminal, to utilize intelligent terminal that intelligence pressure key latch device 100 is carried out parameter configuration, state inspection
Survey, data analysis etc., it is also possible on intelligent terminal real-time display music score, play state etc..When student to play, can
To control to guide indication LED lamp 43 to carry out bright light guiding according to the music score of Chinese operas by control mainboard 3, student can be carried out according to guiding
Play, and after student presses key, key state will be sent to control mainboard 3 by reflection infrared sensor 22, controls
Mainboard 3 can carry out bright light instruction according to the state of key by controlled state indication LED lamp 42, just plays to facilitate student to check whether
Really.
In sum, present invention have the advantage that 1, the present invention is by increasing electronics device on traditional mechanical piano
Part, utilizes electronic device to substitute the on-the-spot indication of teacher, can be greatly improved accuracy that student plays and to rhythm
Power of a test, improve the quality of teaching；2, by key state acquisition component being arranged on pressure key shelves, not only install and keeped in repair
Carry out all extremely convenients, and original acoustic construction of mechanical piano will not be corrupted to, it can be ensured that play effect unaffected；3、
During using, dust, water droplet etc. are all not easily accessed inside pressure key shelves, it is possible to achieve carry out key state accurately
Errorless collection.
Although the foregoing describing the detailed description of the invention of the present invention, but those familiar with the art should managing
Solving, our described specific embodiment is merely exemplary rather than for the restriction to the scope of the present invention, is familiar with this
The technical staff in field, in the equivalent modification made according to the spirit of the present invention and change, should be contained the present invention's
In scope of the claimed protection.
Claims (10)
1. piano intelligence pressure key latch device, it is characterised in that: include a pressure key shelves body, a key state acquisition component,
One controls mainboard, a fixed connecting plate, an intelligent terminal and one guides display lamp component；Described intelligent terminal and described control
Mainboard electrically connects；
Described key state acquisition component is arranged on the bottom of described pressure key shelves body, and described guiding display lamp component is arranged on institute
Stating the front of pressure key shelves body, described control mainboard is arranged on the inside of described pressure key shelves body, and described pressure key shelves body is pressed in
On the key of piano；Described fixed connecting plate is arranged on the back side of described pressure key shelves body；Described key state acquisition component with
And guide display lamp component all to electrically connect with described control mainboard, and control described key state acquisition by described control mainboard
Component gather key state, and control described guiding display lamp component carry out key state instruction and the music score of Chinese operas guide instruction.
A kind of piano intelligence pressure spline device the most according to claim 1, it is characterised in that: also include a light-passing board, institute
State light-passing board and stick to the top of described guiding display lamp component.
A kind of piano intelligence pressure key latch device the most according to claim 1, it is characterised in that: also include two bump contacted chips,
Connection sheet described in two is locked respectively and is paid at the two ends of described pressure key shelves body bottom portion, and every described connection sheet all offers a bar shaped
Hole；The two ends of described pressure key shelves body are each provided with a through hole in the position of corresponding described bar hole.
A kind of piano intelligence pressure key latch device the most according to claim 1, it is characterised in that: the end of described pressure key shelves body
Portion is provided with a USB interface or blue tooth interface, and described control mainboard is connected to described intelligence by described USB interface or blue tooth interface
Can terminal.
A kind of piano intelligence pressure key latch device the most according to claim 2, it is characterised in that: described pressure key shelves body includes
One aluminium alloy pressure key shell body, this aluminium alloy pressure key shell body is provided with a division board at the middle part of inner side, the end of this division board
Portion is provided with one first slot；The front of described aluminium alloy pressure key shell body is an inclined plane, and the lower surface of described inclined plane sets
It is equipped with one second slot, and this second slot is positioned at the top of described division board；A transverse opening is offered in described inclined plane,
Described light-passing board sticks on described transverse opening.
A kind of piano intelligence pressure key latch device the most according to claim 5, it is characterised in that: described control mainboard is fixedly arranged on
On described division board, described control mainboard is provided with five core bus interface circuits, six core bus interface circuit, one
Sheet STM32F103c8T6 chip, usb circuit, debugging interface circuit, status indicator lamp circuit, one
Crystal oscillating circuit, a reset circuit and a blue tooth interface circuit；The pin 5,6 of described STM32F103c8T6 chip and institute
Stating crystal oscillating circuit to be connected, the pin 7 of described STM32F103c8T6 chip is connected with described reset circuit, described
The pin 15,16,17 of STM32F103c8T6 chip is connected with described six core bus interface circuits, described STM32F103c8T6
The pin 30,31 of chip is connected with described blue tooth interface circuit, the pin of described STM32F103c8T6 chip 10,27,28 with
Described five core bus interface circuits are connected, pin 34,37 and the described debugging interface circuit of described STM32F103c8T6 chip
Being connected, the pin 32,33,38 of described STM32F103c8T6 chip is connected with described usb circuit, described
The pin 41,42,43,45 of STM32F103c8T6 chip is connected with described status indicator lamp circuit.
A kind of piano intelligence pressure key latch device the most according to claim 6, it is characterised in that: described key state acquisition structure
Part includes a sensing pcb board and 88 reflection infrared sensors, and described sensing pcb board is inserted in described first slot,
88 described reflection infrared sensors are disposed side by side on the bottom of described sensing pcb board, and every described reflective infrared sensing
The bottom of device all abuts with a key；88 described reflection infrared sensors are all connected to described by described sensing pcb board
Control mainboard.
A kind of piano intelligence pressure key latch device the most according to claim 7, it is characterised in that: set on described sensing pcb board
It is equipped with 11 74HC164 chips being cascaded and a CON1 interface being connected with described five core bus interface circuits,
The positive pole of the transmitting tube of each described reflection infrared sensor is all connected in parallel, and is connected with 3.3V voltage by a resistance
Connecing, 3.3V voltage is connected with the positive terminal of described CON1 interface；The negative pole of the transmitting tube of every described reflection infrared sensor
All it is connected with an outfan of described 74HC164 chip with the negative pole receiving pipe of this reflection infrared sensor；Each institute
The positive pole receiving pipe stating reflection infrared sensor is all connected in parallel, and with the common condition voltage end of described CON1 interface
It is connected；The data input pin of 74HC164 chip described in first is connected with the serial data end of described CON1 interface；Each institute
State the earth terminal of 74HC164 chip to be all connected in parallel ground connection, and be connected with the earth terminal of described CON1 interface；Each described
The input end of clock of 74HC164 chip all clock ends with described CON1 interface are connected；The reset of each described 74HC164 chip
Input is all connected with 3.3V voltage with power input.
A kind of piano intelligence pressure key latch device the most according to claim 6, it is characterised in that: described guiding display lamp component
Indication LED lamp is guided including a display lamp pcb board, 88 status indicator LED lamps and 88；Described display lamp pcb board plugs
In described second slot, each described status indicator LED lamp and guiding indication LED lamp are arranged on described display lamp pcb board,
And make each described status indicator LED lamp and guide indication LED lamp all towards described transverse opening；Each described status indicator LED lamp
All it is connected to described control mainboard by described display lamp pcb board with guiding indication LED lamp.
A kind of piano intelligence pressure key latch device the most according to claim 9, it is characterised in that: on described display lamp pcb board
It is provided with 12 MBI5026 chips being cascaded and a CON2 being connected with described six core bus interface circuits connects
Mouthful；The positive pole of each described status indicator LED lamp and guiding indication LED lamp is all connected in parallel, and is connected with 5V voltage, 5V electricity
Pressure is connected with the 5V positive terminal of described CON2 interface；The negative pole of every described status indicator LED lamp all with described MBI5026 chip
An outfan be connected, the negative pole of every described guiding indication LED lamp all with an outfan phase of described MBI5026 chip
Connect；The power input of each described MBI5026 chip is all connected with 3.3V voltage, 3.3V voltage and described CON2 interface
3.3V positive terminal is connected；The earth terminal of every described MBI5026 chip and enable the equal ground connection of input, and with described CON2 interface
Earth terminal be connected, the resistance outfan of every described MBI5026 chip all by one regulation resistance eutral grounding；Described in first
The serial data input of MBI5026 chip is connected with the serial data end of described CON2 interface；Each described MBI5026 chip
Input end of clock all clock ends with described CON2 interface be connected, the data of each described MBI5026 chip dodge control input
All it is connected with the sudden strain of a muscle control end of described CON2 interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610609827.1A CN106098034A (en) | 2016-07-29 | 2016-07-29 | Piano intelligence key shelves device of pressing |
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| CN201610609827.1A CN106098034A (en) | 2016-07-29 | 2016-07-29 | Piano intelligence key shelves device of pressing |
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| CN106098034A true CN106098034A (en) | 2016-11-09 |
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| CN201610609827.1A Pending CN106098034A (en) | 2016-07-29 | 2016-07-29 | Piano intelligence key shelves device of pressing |
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| CN106530899A (en) * | 2016-12-02 | 2017-03-22 | 大连佳音科技有限公司 | Intelligent detection device for piano |
| CN106601215A (en) * | 2017-02-04 | 2017-04-26 | 宁波甬动信息科技有限公司 | Intelligent practice piano key press baffle |
| CN107393508A (en) * | 2017-08-15 | 2017-11-24 | 北京库客音乐股份有限公司 | A kind of intelligent piano and its assemble method |
| CN108962203A (en) * | 2018-09-03 | 2018-12-07 | 无锡吾成互联科技有限公司 | A kind of piano pressure spline auxiliary teaching device and its application method |
| CN113012664A (en) * | 2021-02-09 | 2021-06-22 | 广州游乐学科技有限公司 | Method and device for detecting playing piano and auxiliary playing piano equipment |
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Application publication date: 20161109 |