CN108053817A - A kind of keyboard instrument optical flame detector and signal output method - Google Patents
A kind of keyboard instrument optical flame detector and signal output method Download PDFInfo
- Publication number
- CN108053817A CN108053817A CN201711019134.8A CN201711019134A CN108053817A CN 108053817 A CN108053817 A CN 108053817A CN 201711019134 A CN201711019134 A CN 201711019134A CN 108053817 A CN108053817 A CN 108053817A
- Authority
- CN
- China
- Prior art keywords
- flame detector
- keyboard instrument
- optical flame
- photoinduction device
- tumtum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention discloses a kind of keyboard instrument optical flame detector and signal output methods, a kind of keyboard instrument optical flame detector includes optical flame detector body, master control borad, optical flame detector body includes connecting portion, Photoinduction device, Photoinduction device is arranged on connecting portion lower part, Photoinduction device lower part is hit tumtum with keyboard instrument and is correspondingly arranged at predetermined intervals, and optical flame detector body is electrically connected with master control borad.The method that the present invention is gathered using optical flame detector and identified the action for hitting tumtum can make the more accurate of signal acquisition, and the information that can recognize that is more, such as：Dynamics, duration etc. are played, provides to user and more fully experiences, in addition optical flame detector uses concealed design, it is suspended on inside qin case, the original structure of keyboard instrument will not be destroyed, will not be played because occupying key spacial influence, one can be formed with keyboard instrument.In addition bluetooth wirelessly or non-wirelessly connection mode is used in signals transmission, mode is various, very convenient to use.
Description
Technical field
The present invention relates to keyboard instrument field more particularly to a kind of keyboard instrument optical flame detectors and signal output method.
Background technology
The reason for conventional keyboard musical instrument is because of its manufacturing theory and structure design, can not be with advanced electronic equipment in practice
Be combined, cause practice qin when it is very uninteresting, studying progress is slow, in existing technology, includes by sound pick-up to collect sound
The shortcomings that sound signal is converted into midi signal, this equipment is that voice recognition technology is easily disturbed be subject to the external world, and signal is sentenced
Disconnected inaccuracy can not accurately differentiate all (instrumental) ensemble sound, turn in the prior art also by optoelectronic device identification key action
Midi signal is turned to, the mode of key motion capture is based on photoinduction, and equipment is external above key, so in light
Light sensation equipment failure can be caused when stronger, can not accurately be provided to induction signal, additionally, due to being placed on above key, qin can be occupied
The original space of key, adversely affects for user.
The content of the invention
It is withered to solve current conventional keyboard musical instrument white silk qin it is an object of the present invention to provide a kind of sensing apparatus of keyboard instrument
Dry, for sound pick-up easily by external interference, photoinduction equipment is arranged on the problem of being adversely affected on key to user.
The present invention solves technical problem and adopts the following technical scheme that：A kind of keyboard instrument optical flame detector include optical flame detector body,
Master control borad, optical flame detector body include connecting portion, Photoinduction device, and Photoinduction device is arranged on connecting portion lower part, Photoinduction device
Lower part is hit tumtum with keyboard instrument and is correspondingly arranged at predetermined intervals, and optical flame detector body is electrically connected with master control borad.
Optionally, which further includes stent, and two stents are arranged on the both sides on connecting portion top, stent
It is arranged on keyboard instrument.
Optionally, keyboard instrument is piano, accordion, pipe organ.
Optionally, Photoinduction device number is 88, and each Photoinduction device corresponds setting with hitting tumtum.
Optionally, predetermined space is less than 20 centimetres.
Optionally, Photoinduction device can be infrared inductor or laser inductor.
Optionally, master control borad includes SN4HC595D microcontrollers.
A kind of keyboard instrument signal output method comprises the following steps：The identification of optical flame detector body hits tumtum and acts and send number
It is believed that number；Master control borad receives data-signal and is converted into data file；Data file is dealt into mobile terminal by transport module.
Optionally, data-signal is level signal, and the data file is MIDI data file.
Optionally, transport module is bluetooth module or USB module.
The present invention has the advantages that：It is gathered in the present invention using optical flame detector and identifies the side for the action for hitting tumtum
Method, can make signal acquisition more precisely, it is more to collect the information that recognizes, such as：Dynamics, duration etc. are played, to use
Person provides and more fully experiences.In addition optical flame detector uses concealed design, is suspended on inside qin case, will not be corrupted to keyboard music
The original structure of device will not be played because occupying key spacial influence, can form one with keyboard instrument.In addition passed in signal
Bluetooth wirelessly or non-wirelessly connection mode is used during defeated, mode is various, very convenient to use.
Description of the drawings
Fig. 1 is the structure diagram of optical inductor in the present invention；
Fig. 2 is the structure diagram of sensor body in the present invention；
Fig. 3 is the circuit diagram that photoreceptor gathers signal in the present invention；
Fig. 4 is the circuit diagram that midi signal is converted in the present invention.
The mark in the figure shows：1- senses body；11- Photoinduction devices；12- connecting portions；2- keys；3- hits tumtum；4-
Hammer；5- stents；6- master control borads；61- microcontrollers.
Specific embodiment
Technical scheme is further elaborated with reference to embodiment and attached drawing.
A kind of keyboard instrument optical flame detector and signal output method are present embodiments provided, which includes
Optical flame detector body 1, the optical flame detector body 1 include Photoinduction device 11 and connecting portion 12 and master control borad 6, the lower part of connecting portion 12
Photoinduction device 11 is provided with, tumtum 3 is hit in the lower part of Photoinduction device 11 and upright keyboard musical instrument and the one-to-one corresponding of hammer 4 is set
It puts, and Photoinduction device 11 is configured with hitting tumtum 3 according to predetermined space, Photoinduction device 11 is provided with 88 in total, and
Each Photoinduction device 11 can carry out the movement of certain spacing on connecting portion 12, so can be preferably to each key
2 variation is sensed, and can make each detection unit that music data be recorded by optoelectronic induction detection, it is ensured that sensing
Accurately and it does not interfere with each other.In addition, the optical flame detector is additionally provided with master control borad 6, master control borad 6 is electrically connected with the optical flame detector body 1, is used for
Control the circuit system of optical flame detector body 1.
The keyboard instrument optical flame detector is additionally provided with stent 5, and optical flame detector body 1 is fixedly installed by the stent 5 of top both sides
In the interior case of keyboard instrument, as at the top of piano, two stents 5 are fixed at case in piano for example, by the device of screw respectively
The both sides at top, the keyboard instrument optical flame detector use concealed design, are suspended on two walls of qin case, do not destroy keyboard instrument,
Key space will not be occupied, one can be formed with keyboard instrument, it is easy for installation, it will not be influenced be subject to external environment, it will not
Influence the user of keyboard instrument.
The optical flame detector not only may be mounted in piano and identify and gather into row information, can also be placed on other keyboards
In kind musical instrument, such as pipe organ, accordion, the acquisition of music information can be carried out using the inductor.
88 Photoinduction devices 11 and 88 piano keys 2 have one-to-one relation, when key 2 acts, hit
Tumtum 3 and hammer 4 can generate movement therewith, which can generate movement with the movement for hitting tumtum 3,
Photosignal will also change with the change in location for hitting tumtum 3 and hammer 4, which has also just reacted the action of key
The information of rhythm, responsiveness and pressing dynamics, in addition when if during using other keyboard kind musical instruments, Photoinduction device 11
Particular number can be adjusted correspondingly according to the hitting tumtum 3 and hammer 4 of different keyboard instruments.
Wherein specifically, the vertical range for hitting tumtum 3 of the Photoinduction device 11 and upright keyboard musical instrument is less than 20 centimetres,
The predetermined space set is less than 20 centimetres, and Photoinduction device 11 corresponding can sense that each hits tumtum 3 and hammer 4
Action message, specific Photoinduction device 11 can sense the distance of hammer 4 for 3 centimetres or so, and most precisely distance is 1 centimetre of left side
The right side, whole adjustable extent are 12 centimetres, and Photoinduction device 11 could be provided as 1 centimetre with piano struck string device vertical range,
Under the distance, Photoinduction device 11 can be very good to sense each the action variation for hitting tumtum 3 and hammer 4, set so
Distance, optical flame detector body 1 will not influence keyboard instrument construction and keyboard instrument user, using keyboard instrument optical flame detector
Identification keyboard instrument hits the principle of the action of tumtum 3, can generate signal more accurate, and collectable signal is extensive, such as will
The scale of performance, note, rhythm interval, play dynamics, duration and loudness of a sound data acquisition into master control borad 6, obtain level letter
Number.In addition be within 20 centimetres of predetermined space preferably by, according to different optical sensors and different musical instrument it is specific in
Portion's bulk, adjusts accordingly gap size.
Specifically, the optical flame detector body 1 can be infrared inductor laser inductor either other ray classes
Sensing device, wherein infrared inductor are inductively measured using the physical property of infrared ray.Laser inductor is then logical
Transmitting laser pulse is crossed, reflects all directions scattering light by hitting tumtum 3 and hammer 4, some scattered light connects back to sensor
Device is received, so as to which the action message for hitting tumtum 3 and hammer 4 be recorded, the music information of the transmission of keyboard instrument keyboard 2 is recorded.
The step of this keyboard instrument optical flame detector signal output is that photoinduction body 1 hits the action of tumtum 3 by identification first
Information gathering is to data-signal, and the data-signal is the level signal of 5V, the data-signal that then will be received by master control borad 6
Data file is converted into, wherein specifically can see by Fig. 3, which passes through 11 in master control borad 6
SN4HC595D microcontrollers are controlled, the SN4HC595D microcontrollers be a kind of IC chip, 11 SN4HC595D
Microcontroller and 88 piano keys 2 are corresponded and set, and each SN4HC595D microcontrollers control 8 keys, are received in photoreceptor
Data file is converted into real time by the master control borad 6 after to 5V level signals, which is specifically MIDI data file,
Next as can be seen from Figure 4, the MIDI data file collected is converted into USBMIDI by P89C52X2BA microcontrollers, using
USB interface be connected to mobile terminal or computer end or by P89C52X2BA microcontrollers midi signal without
It crosses conversion and mobile terminal is directly transferred to by bluetooth module, realize that wireless connection transfers data.And it is sent to shifting in data file
, it is necessary to be encrypted by master control borad 6 before moved end and computer end, the personal secrets of file, specific mobile terminal are protected
It can be smart mobile phone either tablet computer.
In addition the power supply port of the optical flame detector is designed using general MICOUSB, can be directly connected to cable power adapter,
It can also be powered by mobile power, it is simple and convenient.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent substitution to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (10)
1. a kind of keyboard instrument optical flame detector, which is characterized in that including optical flame detector body (1), master control borad (6), the optical flame detector sheet
Body (1) includes connecting portion (12), Photoinduction device (11), and the Photoinduction device (11) is arranged under the connecting portion (12)
Portion, Photoinduction device (11) lower part are hit tumtum (3) with keyboard instrument and are correspondingly arranged at predetermined intervals, the optical flame detector body
(1) it is electrically connected with the master control borad (6).
2. keyboard instrument optical flame detector according to claim 1, which is characterized in that further include stent (5), two stents
(5) both sides on the connecting portion (12) top are arranged on, the stent (5) is arranged on keyboard instrument.
3. keyboard instrument optical flame detector according to claim 2, which is characterized in that the keyboard instrument for piano, accordion,
Pipe organ.
4. keyboard instrument optical flame detector according to claim 1, which is characterized in that Photoinduction device (11) number is 88
A, each Photoinduction device (11) corresponds setting with hitting tumtum (3).
5. keyboard instrument optical flame detector according to claim 1, which is characterized in that the predetermined space is less than 20 centimetres.
6. keyboard instrument optical flame detector according to claim 1, which is characterized in that the Photoinduction device (11) is infrared sense
Answer device or laser inductor.
7. keyboard instrument optical flame detector according to claim 1, which is characterized in that the master control borad (6) includes SN4HC595D
Microcontroller (61).
8. a kind of use claim 1-7 any one of them keyboard instrument optical flame detectors, which is characterized in that comprises the following steps：
Optical flame detector body (1) identification hits tumtum (3) and acts and send data-signal；
The master control borad (6) receives data-signal and is converted into data file；
The data file is dealt into mobile terminal by transport module.
9. keyboard instrument signal output method according to claim 8, which is characterized in that the data-signal is believed for level
Number, the data file is MIDI data file.
10. keyboard instrument signal output method according to claim 8, which is characterized in that the transport module is bluetooth
Module or USB module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019134.8A CN108053817A (en) | 2017-10-27 | 2017-10-27 | A kind of keyboard instrument optical flame detector and signal output method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019134.8A CN108053817A (en) | 2017-10-27 | 2017-10-27 | A kind of keyboard instrument optical flame detector and signal output method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108053817A true CN108053817A (en) | 2018-05-18 |
Family
ID=62119290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711019134.8A Pending CN108053817A (en) | 2017-10-27 | 2017-10-27 | A kind of keyboard instrument optical flame detector and signal output method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6842168B1 (en) * | 2000-03-20 | 2005-01-11 | Creative Technology Ltd. | Accessory for multimedia console |
| US20120266741A1 (en) * | 2012-02-01 | 2012-10-25 | Beamz Interactive, Inc. | Keystroke and midi command system for dj player and video game systems |
| TWM477021U (en) * | 2014-01-15 | 2014-04-21 | pin-rui Huang | Photo-sensing piano structure |
| CN203895107U (en) * | 2014-06-11 | 2014-10-22 | 马晏骏 | Piano keyboard action photoelectric digital detecting device |
| CN104157276A (en) * | 2014-08-27 | 2014-11-19 | 大连佳音科技有限公司 | Photoelectric detection device and detection method for motions of piano keyboard |
| CN204390723U (en) * | 2014-11-05 | 2015-06-10 | 甘茂鹏 | Based on piano key state-detection and the indicating device of light-inductive technology |
| CN206921463U (en) * | 2017-10-27 | 2018-01-23 | 北京开心练教育科技有限公司 | A kind of keyboard instrument optical flame detector |
-
2017
- 2017-10-27 CN CN201711019134.8A patent/CN108053817A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6842168B1 (en) * | 2000-03-20 | 2005-01-11 | Creative Technology Ltd. | Accessory for multimedia console |
| US20120266741A1 (en) * | 2012-02-01 | 2012-10-25 | Beamz Interactive, Inc. | Keystroke and midi command system for dj player and video game systems |
| TWM477021U (en) * | 2014-01-15 | 2014-04-21 | pin-rui Huang | Photo-sensing piano structure |
| CN203895107U (en) * | 2014-06-11 | 2014-10-22 | 马晏骏 | Piano keyboard action photoelectric digital detecting device |
| CN104157276A (en) * | 2014-08-27 | 2014-11-19 | 大连佳音科技有限公司 | Photoelectric detection device and detection method for motions of piano keyboard |
| CN204390723U (en) * | 2014-11-05 | 2015-06-10 | 甘茂鹏 | Based on piano key state-detection and the indicating device of light-inductive technology |
| CN206921463U (en) * | 2017-10-27 | 2018-01-23 | 北京开心练教育科技有限公司 | A kind of keyboard instrument optical flame detector |
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