CN109615791B - Intelligent braking system for piano keyboard and implementation method thereof - Google Patents
Intelligent braking system for piano keyboard and implementation method thereof Download PDFInfo
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- CN109615791B CN109615791B CN201910039955.0A CN201910039955A CN109615791B CN 109615791 B CN109615791 B CN 109615791B CN 201910039955 A CN201910039955 A CN 201910039955A CN 109615791 B CN109615791 B CN 109615791B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000006096 absorbing agent Substances 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 7
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/322—Aspects of commerce using mobile devices [M-devices]
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/0042—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for hiring of objects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/12—Payment architectures specially adapted for electronic shopping systems
- G06Q20/127—Shopping or accessing services according to a time-limitation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/327—Short range or proximity payments by means of M-devices
- G06Q20/3276—Short range or proximity payments by means of M-devices using a pictured code, e.g. barcode or QR-code, being read by the M-device
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/30—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for musical instruments
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/0036—Checkout procedures
- G07G1/0045—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
- G07G1/0081—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader the reader being a portable scanner or data reader
-
- 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
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Theoretical Computer Science (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Finance (AREA)
- Braking Arrangements (AREA)
Abstract
The application discloses an intelligent braking system of a piano keyboard and an implementation method thereof, the braking system comprises a signal receiving controller, an electromagnetic absorber, a braking telescopic shaft, a braking connecting rod, a braking connecting rod fulcrum shaft, a keyboard and two-dimension codes, wherein a two-dimension code display board is fixedly arranged in a designated area, two ends of the braking rod are connected with the braking connecting rod, the other end of the braking connecting rod is transversely and movably connected to a left side plate and a right side plate of the piano through the braking connecting rod fulcrum shaft, the signal receiving controller and the electromagnetic absorber are arranged on the inner sides of the left side plate and the right side plate of the piano, the signal receiving controller is electrically connected with the electromagnetic absorber, and the electromagnetic absorber is movably connected with the middle part of the braking connecting rod through the lower end of the braking telescopic shaft. According to the application, the mobile terminal is adopted to scan the two-dimension code, and the automatic opening and closing functions of the keyboard intelligent braking system are used for realizing the automatic charging of piano learning, so that the manual management of the traditional piano renting industry is replaced, the manual management cost is reduced, and the development of the piano renting industry is facilitated.
Description
Technical Field
The application relates to the field of pianos, in particular to an intelligent braking system for a piano keyboard and an implementation method thereof.
Background
At present, piano renting and piano practice charging are operated by adopting a traditional manual management timing charging mode. However, the manual management cost is high, the expenditure is large, the place limitation of renting the piano is large, the requirement of a piano learner cannot be met, and the development and operation are not facilitated to be enlarged, so that the traditional manual management piano practice charging mode severely restricts the development of the piano renting industry.
Disclosure of Invention
The application aims to provide an intelligent braking system for a piano keyboard and an implementation method thereof, wherein a mobile terminal is adopted to scan two-dimensional codes, and automatic charging of piano learning is realized by the automatic opening and closing functions of the intelligent braking system for the keyboard, so that manual management of the traditional piano renting industry is replaced, and the cost is reduced.
The technical scheme of the application is as follows:
the utility model provides a piano keyboard intelligence braking system, includes that signal receiving controller, electromagnetism inhale, brake telescopic shaft, brake connecting rod, brake lever, brake connecting rod pivot, keyboard and two-dimensional code, the fixed appointed region that sets up in mobile terminal scanning use of two-dimensional code display board, brake lever both ends be connected with brake connecting rod, the other end of brake connecting rod is through the horizontal swing joint of brake connecting rod pivot on the left and right curb plate of organ, a left and right curb plate inboard install signal receiving controller and electromagnetism inhale, signal receiving controller and electromagnetism inhale the electricity and be connected, the electromagnetism is inhaled through brake telescopic shaft lower extreme and brake connecting rod's middle part swing joint, the keyboard passes through intermediate strut portion and installs on the keyboard support, brake lever upper and lower side all lay the soft glue film, the brake lever is through soft glue film movable press and is put on the keyboard end.
The braking telescopic shaft comprises a telescopic rod and a spring, one end of the telescopic rod is connected with the electromagnetic absorption movable iron core, the other end of the telescopic rod is provided with a connecting seat with a downward U-shaped opening, the connecting seat is movably connected to the braking connecting rod through the U-shaped opening, the spring is sleeved on the telescopic rod, one end of the spring is connected to the lower side of the electromagnetic absorption outer body, and the other end of the spring is connected to the upper side of the connecting seat with the downward U-shaped opening.
The left side plate and the right side plate of the musical instrument are connected with a middle fixed baffle plate, the middle fixed baffle plate is longitudinally connected with a fixed bracket, the lower end part of the fixed bracket is connected with an arc limiting piece with an arc downward, and the arc limiting piece is arranged on the upper side of the brake rod and used for limiting the upward lifting height of the brake rod.
A realization method of an intelligent braking system of a piano keyboard comprises the following steps:
1) Starting: scanning a two-dimensional code through the mobile terminal, determining the selection exercise time and payment, determining options and sending signals to a background server;
2) The background server: receiving a client payment selection time signal, comparing the client payment selection time signal with the originally set numerical value, and sending a signal to a receiving signal controller after confirming the payment use duration;
3) A received signal controller: receiving a use duration signal, and sending an energizing time instruction by an option;
4) Electromagnetic absorption: the power is turned on, and the power-on time instruction of the receiving controller is received to start working;
5) Braking the telescopic shaft: the braking telescopic shaft is lifted upwards under the attractive force of electromagnetic suction work and keeps a lifting state in the electromagnetic suction power-on time;
6) A brake lever: the brake rod is upwards separated from the tail end of the keyboard through a brake connecting rod under the lifting tension of a brake telescopic shaft;
7) A keyboard: the tail end of the keyboard is not pressed by the brake rod, so that a normal playing function is realized;
8) The background server: until the background server confirms that the payment is used up, and sends a payment end-of-use signal to the received signal controller;
9) A received signal controller: the option time is over, and a power-off instruction is sent out;
10 Electromagnetic attraction: receiving a power-off instruction of a receiving signal controller, and disconnecting the power supply;
11 Braking the telescopic shaft): the braking telescopic shaft is rapidly pressed downwards under the action of a braking telescopic shaft spring under the electromagnetic power-on/off state;
12 Brake lever): the brake rod presses the tail end of the keyboard under the downward pressure driven by the brake telescopic shaft spring;
13 Ending): the keyboard end stops playing under the compression of the brake rod, so that the function of braking the keyboard is realized.
The application has the beneficial effects that:
through adopting the automatic charge that scans the piano study was realized to the two-dimensional code, reaches the cost that reduces the point of renting and improves the economic benefits of renting, is favorable to the development of renting the industry, and the convenience does not have the piano and wants the person of learning the piano again simultaneously, accessible rents the piano mode study.
The background server is adopted to receive service signals which are sent by the mobile terminal for scanning the two-dimension codes, the signals which are received and processed by the background server are fed back to the receiving signal controller, the receiving signal controller sends an electrifying or outage instruction to the electromagnetic absorber, and the brake rod is used for realizing the opening or closing function of the keyboard in the lifting or pressing process of the brake telescopic shaft controlled by the electromagnetic absorber through the brake connecting rod.
Drawings
FIG. 1 is a schematic illustration of a brake system according to the present application;
FIG. 2 is a schematic diagram of the connection and structure of the components of the brake system of the present application;
fig. 3 is an enlarged view of a portion a of fig. 1.
In the figure: the device comprises a signal receiving controller, an electromagnetic absorber, a 3-brake telescopic shaft, a 31-telescopic rod, a 32-connecting seat, a 33 spring, a 4-brake connecting rod, a 5-brake rod, a 6-brake connecting rod fulcrum shaft, a 7-keyboard, an 8-support part, a 9-keyboard tail end, a 10-organ left side plate and a 10-organ right side plate, a 11-middle fixed baffle plate, a 12-fixed support, a 13-arc limiting piece, a 14-soft rubber layer, a 15-linkage lever, a 16-butt and a 17-hammer.
Detailed Description
The application will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1, 2 and 3, an intelligent braking system for a piano keyboard comprises a receiving signal controller 1, an electromagnetic absorber 2, a braking telescopic shaft 3, a braking connecting rod 4, a braking rod 5, a braking connecting rod fulcrum 6, a keyboard 7 and two-dimension codes, wherein a two-dimension code display board is fixedly arranged in a designated area convenient for scanning and using of a mobile terminal, two ends of the braking rod 5 are connected with the braking connecting rod 4, the other end of the braking connecting rod 4 is transversely and movably connected to a left side plate and a right side plate 10 through the braking connecting rod fulcrum 6, a receiving signal controller 1 and the electromagnetic absorber 2 are arranged on one inner side of the left side plate 10, the receiving signal controller 1 is electrically connected with the electromagnetic absorber 2, the electromagnetic absorber 2 is movably connected with the middle part of the braking connecting rod 4 through the lower end of the braking telescopic shaft 3, the keyboard 7 is arranged on a keyboard support through an intermediate support part 8, soft adhesive layers 14 are respectively paved on the upper side and lower side surfaces of the braking rod 5, the braking rod 5 can be movably pressed on the keyboard tail end 9 through the soft adhesive layers 14, a backstage server receives a scanning time of the mobile terminal and a two-dimension code and a payment signal is selected by the mobile terminal, and the receiving signal is continuously controlled by the electromagnetic absorber 2 after the receiving the value of the mobile terminal and the corresponding value, and the receiving signal is continuously transmitted to the receiving the payment signal to the control signal through the electromagnetic absorber 2 and the electromagnetic absorber 2, which is continuously used for controlling the value to control device to control the value and the electronic absorber 2; the left side plate and the right side plate 10 are connected with a middle fixed baffle plate 11, the middle fixed baffle plate 11 is longitudinally connected with a fixed support 12, the lower end part of the fixed support 12 is connected with an arc limiting piece 13 with an arc downward, the arc limiting piece 13 is arranged on the upper side of the brake rod 5 and used for limiting the upward lifting height of the brake rod 5, and the height is enough to ensure the upward tilting distance of the tail end 9 of the keyboard during normal playing.
As shown in fig. 1 and 3, the brake telescopic shaft 3 comprises a telescopic rod 31 and a spring 33, one end of the telescopic rod 31 is connected with the movable iron core of the electromagnetic absorber 2, the other end of the telescopic rod is provided with a connecting seat 32 with a downward U-shaped opening, the connecting seat 32 is movably connected to the brake connecting rod 4 through the U-shaped opening, the spring 33 is sleeved on the telescopic rod 31, one end of the spring 33 is connected to the lower side of the outer body of the electromagnetic absorber 2, and the other end of the spring is connected to the upper side of the connecting seat 32 with the downward U-shaped opening; after the electromagnetic absorber 2 is electrified, the electromagnetic absorber 2 generates electromagnetic attraction through an electromagnetic coil, the movable iron core pulls the telescopic rod 31 to move upwards, the telescopic rod 31 pulls the brake rod 5 to move upwards through the brake connecting rod 4, the brake rod 5 is lifted and leaves the keyboard tail end 9, the electromagnetic absorber 2 keeps in a lifting state in the electrifying time so as to keep the piano to play normally, when the piano plays, the keyboard tail end 9 warps and drives the linkage lever 15 connected with the upper side of the keyboard tail end 9, the linkage lever 15 acts on the butt 16, the butt 16 drives the hammer 17 at the upper end of the butt 16, the hammer 17 is enabled to make sounds when the strings are struck, the electromagnetic absorber 2 stops after the power is cut off, the brake connecting rod 4 is pushed by the elasticity of the spring 33 to drive the telescopic rod 31 to stretch downwards, the brake connecting rod 4 is enabled to drive the brake rod 5 to move downwards by the stretching force of the spring 33, the brake rod 5 continues to be pressed downwards to the keyboard tail end 9, and the piano cannot play normally, so that the intelligent braking of the piano keyboard is achieved.
A realization method of an intelligent braking system of a piano keyboard comprises the following steps:
1) Starting: scanning a two-dimensional code through the mobile terminal, determining the selection exercise time and payment, determining options and sending signals to a background server;
2) The background server: receiving a client payment selection time signal, comparing the client payment selection time signal with the originally set numerical value, and sending a signal to a receiving signal controller after confirming the payment use duration;
3) A received signal controller: receiving a use duration signal, and sending an energizing time instruction by an option;
4) Electromagnetic absorption: the power is turned on, and the power-on time instruction of the receiving controller is received to start working;
5) Braking the telescopic shaft: the braking telescopic shaft is lifted upwards under the attractive force of electromagnetic suction work and keeps a lifting state in the electromagnetic suction power-on time;
6) A brake lever: the brake rod is upwards separated from the tail end of the keyboard through a brake connecting rod under the lifting tension of a brake telescopic shaft;
7) A keyboard: the tail end of the keyboard is not pressed by the brake rod, so that a normal playing function is realized;
8) The background server: until the background server confirms that the payment is used up, and sends a payment end-of-use signal to the received signal controller;
9) A received signal controller: the option time is over, and a power-off instruction is sent out;
10 Electromagnetic attraction: receiving a power-off instruction of a receiving signal controller, and disconnecting the power supply;
11 Braking the telescopic shaft): the braking telescopic shaft is rapidly pressed downwards under the action of a braking telescopic shaft spring under the electromagnetic power-on/off state;
12 Brake lever): the brake rod presses the tail end of the keyboard under the downward pressure driven by the brake telescopic shaft spring;
13 Ending): the keyboard end stops playing under the compression of the brake rod, so that the function of braking the keyboard is realized.
For a person skilled in the art, the piano of the application is common knowledge in the art, and the innovation point of the piano is that an intelligent braking system of a piano keyboard and an implementation method thereof are added on the basis of the existing piano, so that the problem of high manual management cost of piano practice charging is solved.
The application is not limited to the specific forms disclosed above, but it should be understood that modifications and substitutions of the technical solution of the application will not depart from the spirit and scope of the technical solution of the application by those skilled in the art.
Claims (4)
1. An intelligent braking system for a piano keyboard, which is characterized in that: including receiving signal controller (1), electromagnetism and inhaling (2), braking telescopic shaft (3), braking connecting rod (4), brake lever (5), braking connecting rod pivot (6), keyboard (7) and two-dimensional code show the tablet, the fixed appointed region that sets up in mobile terminal scanning use of two-dimensional code show the tablet, braking lever (5) both ends be connected with braking connecting rod (4), the other end of braking connecting rod (4) is through braking connecting rod pivot (6) horizontal swing joint on musical instrument left and right curb plate (10), musical instrument left and right curb plate (10) inboard install receiving signal controller (1) and electromagnetism and inhale (2), receiving signal controller (1) and electromagnetism inhale (2) electricity and be connected, electromagnetism inhale (2) through the middle part swing joint of braking telescopic shaft (3) lower extreme and braking connecting rod (4), keyboard (7) are installed on the keyboard support through intermediate strut portion (8), the upper and lower side of braking lever (5) all lay soft glue layer (14), braking lever (5) are through soft movable end (9) on the keyboard dynamic pressure.
2. The intelligent braking system of a piano keyboard of claim 1, wherein: the braking telescopic shaft (3) comprises a telescopic rod (31) and a spring (33), one end of the telescopic rod (31) is connected with the movable iron core of the electromagnetic absorber (2), the other end of the telescopic rod is provided with a connecting seat (32) with a downward U-shaped opening, the connecting seat (32) is movably connected to the braking connecting rod (4) through the U-shaped opening, the spring (33) is sleeved on the telescopic rod (31), one end of the spring is connected to the lower side of the outer body of the electromagnetic absorber (2), and the other end of the spring is connected to the upper side of the connecting seat (32) with the downward U-shaped opening.
3. The intelligent braking system of a piano keyboard of claim 1, wherein: the novel musical instrument is characterized in that the left side plate and the right side plate (10) are connected with a middle fixed baffle plate (11), the middle fixed baffle plate (11) is longitudinally connected with a fixed support (12), the lower end part of the fixed support (12) is connected with an arc limiting piece (13) with an arc downward, and the arc limiting piece (13) is arranged on the upper side of the brake rod (5) and used for limiting the upward lifting height of the brake rod (5).
4. A realization method of an intelligent braking system of a piano keyboard is characterized by comprising the following steps: the method comprises the following steps:
1) Starting: scanning a two-dimensional code through the mobile terminal, determining the selection exercise time and payment, determining options and sending signals to a background server;
2) The background server: receiving a client payment selection time signal, comparing the client payment selection time signal with the originally set numerical value, and sending a signal to a receiving signal controller after confirming the payment use duration;
3) A received signal controller: receiving a use duration signal, and sending an energizing time instruction by an option;
4) Electromagnetic absorption: the power is turned on, and the power-on time instruction of the receiving controller is received to start working;
5) Braking the telescopic shaft: the braking telescopic shaft is lifted upwards under the attractive force of electromagnetic suction work and keeps a lifting state in the electromagnetic suction power-on time;
6) A brake lever: the brake rod is upwards separated from the tail end of the keyboard through a brake connecting rod under the lifting tension of a brake telescopic shaft;
7) A keyboard: the tail end of the keyboard is not pressed by the brake rod, so that a normal playing function is realized;
8) The background server: until the background server confirms that the payment is used up, and sends a payment end-of-use signal to the received signal controller;
9) A received signal controller: the option time is over, and a power-off instruction is sent out;
10 Electromagnetic attraction: receiving a power-off instruction of a receiving signal controller, and disconnecting the power supply;
11 Braking the telescopic shaft): the braking telescopic shaft is rapidly pressed downwards under the action of a braking telescopic shaft spring under the electromagnetic power-on/off state;
12 Brake lever): the brake rod presses the tail end of the keyboard under the downward pressure driven by the brake telescopic shaft spring;
13 Ending): the keyboard end stops playing under the compression of the brake rod, so that the function of braking the keyboard is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039955.0A CN109615791B (en) | 2019-01-16 | 2019-01-16 | Intelligent braking system for piano keyboard and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039955.0A CN109615791B (en) | 2019-01-16 | 2019-01-16 | Intelligent braking system for piano keyboard and implementation method thereof |
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| Publication Number | Publication Date |
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| CN109615791A CN109615791A (en) | 2019-04-12 |
| CN109615791B true CN109615791B (en) | 2023-12-08 |
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| CN201910039955.0A Active CN109615791B (en) | 2019-01-16 | 2019-01-16 | Intelligent braking system for piano keyboard and implementation method thereof |
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| JP2003203111A (en) * | 2001-12-28 | 2003-07-18 | Matsushita Electric Ind Co Ltd | Method for managing leased or rented appliance, leased or rented appliance, data processing unit, lease or rental system for appliance, and program for managing leased or rented appliance |
| CN1602514A (en) * | 2002-08-07 | 2005-03-30 | 张泳昭 | Rolling electronic piano |
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| CN108711230A (en) * | 2018-04-12 | 2018-10-26 | 佛山市光线网络科技有限公司 | A kind of piano shared platform Internet-based |
| CN108711237A (en) * | 2018-04-12 | 2018-10-26 | 佛山市光线网络科技有限公司 | A kind of shared piano system |
| CN208208000U (en) * | 2018-05-07 | 2018-12-07 | 森兰信息科技（上海）有限公司 | A kind of intelligence piano and its leasing system |
| CN209417849U (en) * | 2019-01-16 | 2019-09-20 | 广东龙健乐器有限公司 | A kind of fingerboard intelligent braking system |
-
2019
- 2019-01-16 CN CN201910039955.0A patent/CN109615791B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003203111A (en) * | 2001-12-28 | 2003-07-18 | Matsushita Electric Ind Co Ltd | Method for managing leased or rented appliance, leased or rented appliance, data processing unit, lease or rental system for appliance, and program for managing leased or rented appliance |
| CN1602514A (en) * | 2002-08-07 | 2005-03-30 | 张泳昭 | Rolling electronic piano |
| CN201075285Y (en) * | 2007-08-01 | 2008-06-18 | 李先敏 | Electronic piano playing keyboard with quadrate gravity variety hand feeling |
| CN108711230A (en) * | 2018-04-12 | 2018-10-26 | 佛山市光线网络科技有限公司 | A kind of piano shared platform Internet-based |
| CN108711237A (en) * | 2018-04-12 | 2018-10-26 | 佛山市光线网络科技有限公司 | A kind of shared piano system |
| CN208208000U (en) * | 2018-05-07 | 2018-12-07 | 森兰信息科技（上海）有限公司 | A kind of intelligence piano and its leasing system |
| CN209417849U (en) * | 2019-01-16 | 2019-09-20 | 广东龙健乐器有限公司 | A kind of fingerboard intelligent braking system |
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| CN109615791A (en) | 2019-04-12 |
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