CN106340229A - Velocity-sound skinless drum demonstration instrument based on ultrasonic - Google Patents
Velocity-sound skinless drum demonstration instrument based on ultrasonic Download PDFInfo
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- CN106340229A CN106340229A CN201610706481.7A CN201610706481A CN106340229A CN 106340229 A CN106340229 A CN 106340229A CN 201610706481 A CN201610706481 A CN 201610706481A CN 106340229 A CN106340229 A CN 106340229A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics
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Abstract
The invention discloses a velocity-sound skinless drum demonstration instrument based on ultrasonic, comprising an STM32F103RCT6 single chip microcomputer, a voice module, and an ultrasonic speed measuring module. The STM32F103RCT6 single chip microcomputer serves as the core, and is connected with the voice module and the ultrasonic speed measuring module. The invention further discloses a communication method of the velocity-sound skinless drum demonstration instrument based on ultrasonic. The principle of the original skinless drum is optimized and the structure thereof is upgraded. The improved velocity-sound skinless drum demonstration instrument has an optimized overall structure. A new speed acquisition module is adopted, and the beating speed can be acquired more accurately. A new operation core is adopted, and data processing is quicker. A new voice module is adopted, which makes the sound of the skinless drum more diverse and cohesion between different timbres natural and thus makes the sound closer to that of a real leather drum.
Description
Technical field
The present invention relates to skinless drum technical field, especially relate to a kind of fast sound skinless drum demonstrator based on ultrasonic wave and
Its means of communication.
Background technology
Skinless drum demonstrator, as the term suggests it is simply that not having corresponding drum surface, simply patting air in drum, being allowed to send
Original sound patting drum surface, due to being to pat on air, so also referred to as " air drum ", " magical drum ".On the market
Existing skinless drum, its principle is to adopt optoelectronic switch, and diffusing reflection laser launched by optoelectronic switch, and receiving terminal acceptance is reflective, if
There is the such as palm intervention of light tight object, be allowed to diffusing reflection and accept distance change, this changing value is just fed back by optoelectronic switch
To in single-chip microcomputer, single-chip microcomputer, further according to feedack, sends one and instructs voice module, sends corresponding " tum ".Mould
Imitative real skin drum.But the shortcoming of existing skinless drum is also the example it will be apparent that optoelectronic switch is easily affected by external environment
As too strong illumination, the light of direct projection, these all easily cause sensing and lost efficacy, its 51 internal single-chip microcomputer, and performance is relatively low, faced by
The process of enriched data, also unable to do what one wishes.The voice that voice module is play is also more single, differs relatively with actual skin drum
Greatly.For this reason, being directed to above weak point, this technology improves the structure of demonstrator, improves the anti-interference energy of environment to external world
Power, the addition of more voice, enrich the tum of skinless drum.
Content of the invention
In order to solve the above problems, the present invention provides a kind of fast sound skinless drum demonstrator based on ultrasonic wave and its communication side
Method, present invention employs new speed acquisition module, makes the speed data of collection more accurate, the new arithmetic core of employing,
Processing data is more quick, employs new voice module, makes the sound that skinless drum feeds back more true, clear, more presses close to
Original tum.
The technical solution of the present invention is:
A kind of fast sound skinless drum demonstrator based on ultrasonic wave, including stm32f103rct6 single-chip microcomputer, voice module, ultrasonic wave
Speed measuring module；Wherein with stm32f103rct6 single-chip microcomputer as core, stm32f103rct6 single-chip microcomputer and voice module, ultrasonic wave
Speed measuring module connects.
Preferably, described ultrasonic wave speed measuring module adopts hc-sr04 ultrasonic wave speed measuring module, and supply voltage is 5v, detects
Distance is 2cm-450cm, and detection accuracy is 0.3cm.The measured value that ultrasonic wave speed measuring module feeds back all the time is different from, root
Factually border situation analysis, adjusts ultrasonic wave transmission interval, eliminates the shake of the velocity amplitude in the case of reality measures, determines and draw one
The individual velocity amplitude comparing laminating reality, then feeds back to this velocity amplitude in stm32 single-chip microcomputer again, is further analyzed.
Preferably, the time difference method that described hc-sr04 ultrasonic wave speed measuring module employs for low speed calculates；Time difference method tests the speed
It is applied to low-speed motion object, if the time being transmitted into reception for the first time from ultrasonic wave is t1, after receiving echo-signal, send out one again
Secondary ultrasonic signal, secondary transmitting-receiving interval time be t2, then first time ultrasonic signal reach object when, transmitting probe with
Between object, distance is s1, and when second ultrasonic signal reaches object, between transmitting probe and object, distance is s2, then object
Movement velocity as follows.
Preferably, described voice module adopts wt588d-32l voice module, and supply voltage is 12v, wt588d-32l language
Sound chip sample rate is 6k, and memory capacity is the minimum voice length of every 1 address during 4m is 125ms, can play altogether
The language of 100s, maximum address is 0x1ef, and recording actual address is 0x10-0x1ef.
Preferably, in recorded speech, all voices after current address are by certainly for described wt588d-32l voice module
Dynamic deletion, the storage content before current address is constant, and during recorded speech from the beginning of initial address 01h, voice combination is no substantially
Discontinuously feel, clear sound, nature, the various different tum of recording playback, the tum of the skin drum under reduction actual conditions.
A kind of communication means of the fast sound skinless drum demonstrator based on ultrasonic wave, comprises the following steps:
S101: by required program entry stm32f103rct6 single-chip microcomputer；
S102: the different speed during being tapped using the measurement of hc-sr04 ultrasonic wave speed measuring module, by measured numerical value
Stm32f103rct6 single-chip microcomputer is transferred to by internal wiring；
S103: selected by the different speed of stm32f103rct6 single-chip microcomputer operational analysis, transmit a signal to wt588d-32l language
Sound module, to play the tum corresponding to friction speed, close to real skin drum.
The present invention has the advantages that compared with the prior art
(1), the upgrading of the aspect of the further optimization of the principle to original skinless drum for the present invention and structure, the fast sound after improvement
Skinless drum demonstrator, is optimized to overall structure, employs new speed acquisition module, can more accurately gather bat
Beat speed, the new arithmetic core of employing, processing data is more quick, employs new voice module, also makes skinless drum
Tum is more diversified, is connected nature between each tone color, is more nearly real skin drum.
(2), the present invention improves " tum " of skinless drum further, improves the single shortcoming of original skinless drum tum, enriches
, it is easy to demonstrate, effect is obvious for the musical instrument sound of skinless drum.
Brief description
Fig. 1 is the theory diagram based on the fast sound skinless drum demonstrator of ultrasonic wave for the present invention；
Fig. 2 is the means of communication flow chart based on the fast sound skinless drum demonstrator of ultrasonic wave for the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment is further described to the application principle of the present invention.
Embodiment 1, such as Fig. 1, a kind of fast sound skinless drum demonstrator based on ultrasonic wave, including stm32f103rct6 monolithic
Machine, voice module, ultrasonic wave speed measuring module；Wherein with stm32f103rct6 single-chip microcomputer as core, stm32f103rct6 monolithic
Machine and voice module, ultrasonic wave speed measuring module connects.
Preferably, described ultrasonic wave speed measuring module adopts hc-sr04 ultrasonic wave speed measuring module, and supply voltage is 5v, detects
Distance is 2cm, and detection accuracy is 0.3cm.The measured value that ultrasonic wave speed measuring module feeds back all the time is different from, according to reality
Situation analysis, adjusts ultrasonic wave transmission interval, eliminates the shake of the velocity amplitude in the case of reality measures, determines and show that one is compared
The actual velocity amplitude of laminating, then feeds back to this velocity amplitude in stm32 single-chip microcomputer again, is further analyzed.
Preferably, the time difference method that described hc-sr04 ultrasonic wave speed measuring module employs for low speed calculates；Time difference method tests the speed
It is applied to low-speed motion object, if the time being transmitted into reception for the first time from ultrasonic wave is t1, after receiving echo-signal, send out one again
Secondary ultrasonic signal, secondary transmitting-receiving interval time be t2, then first time ultrasonic signal reach object when, transmitting probe with
Between object, distance is s1, and when second ultrasonic signal reaches object, between transmitting probe and object, distance is s2, then object
Movement velocity v=as follows.
Preferably, described voice module adopts wt588d-32l voice module, and supply voltage is 12v, wt588d-32l language
Sound chip sample rate is 6k, and memory capacity is the minimum voice length of every 1 address during 4m is 125ms, can play altogether
The language of 100s, maximum address is 0x1ef, and recording actual address is 0x10.
Preferably, in recorded speech, all voices after current address are by certainly for described wt588d-32l voice module
Dynamic deletion, the storage content before current address is constant, and during recorded speech from the beginning of initial address 01h, voice combination is no substantially
Discontinuously feel, clear sound, nature, the various different tum of recording playback, the tum of the skin drum under reduction actual conditions.
As Fig. 2, a kind of communication means of the fast sound skinless drum demonstrator based on ultrasonic wave, comprise the following steps:
S101: by required program entry stm32f103rct6 single-chip microcomputer；
S102: the different speed during being tapped using the measurement of hc-sr04 ultrasonic wave speed measuring module, by measured numerical value
Stm32f103rct6 single-chip microcomputer is transferred to by internal wiring；
S103: selected by the different speed of stm32f103rct6 single-chip microcomputer operational analysis, transmit a signal to wt588d-32l language
Sound module, to play the tum corresponding to friction speed, close to real skin drum.
Embodiment 2, such as Fig. 1, a kind of fast sound skinless drum demonstrator based on ultrasonic wave, including stm32f103rct6 monolithic
Machine, voice module, ultrasonic wave speed measuring module；Wherein with stm32f103rct6 single-chip microcomputer as core, stm32f103rct6 monolithic
Machine and voice module, ultrasonic wave speed measuring module connects.
Preferably, described ultrasonic wave speed measuring module adopts hc-sr04 ultrasonic wave speed measuring module, and supply voltage is 5v, detects
Distance is 450cm, and detection accuracy is 0.3cm.The measured value that ultrasonic wave speed measuring module feeds back all the time is different from, according to reality
Border situation analysis, adjusts ultrasonic wave transmission interval, eliminates the shake of the velocity amplitude in the case of reality measures, and determines and draws a ratio
The velocity amplitude of reality of relatively fitting, then feeds back to this velocity amplitude in stm32 single-chip microcomputer again, is further analyzed.
Preferably, the time difference method that described hc-sr04 ultrasonic wave speed measuring module employs for low speed calculates；Time difference method tests the speed
It is applied to low-speed motion object, if the time being transmitted into reception for the first time from ultrasonic wave is t1, after receiving echo-signal, send out one again
Secondary ultrasonic signal, secondary transmitting-receiving interval time be t2, then first time ultrasonic signal reach object when, transmitting probe with
Between object, distance is s1, and when second ultrasonic signal reaches object, between transmitting probe and object, distance is s2, then object
Movement velocity as follows.
Preferably, described voice module adopts wt588d-32l voice module, and supply voltage is 12v, wt588d-32l language
Sound chip sample rate is 6k, and memory capacity is the minimum voice length of every 1 address during 4m is 125ms, can play altogether
The language of 100s, maximum address is 0x1ef, and recording actual address is 0x1ef.
Preferably, in recorded speech, all voices after current address are by certainly for described wt588d-32l voice module
Dynamic deletion, the storage content before current address is constant, and during recorded speech from the beginning of initial address 01h, voice combination is no substantially
Discontinuously feel, clear sound, nature, the various different tum of recording playback, the tum of the skin drum under reduction actual conditions.
As Fig. 2, a kind of communication means of the fast sound skinless drum demonstrator based on ultrasonic wave, comprise the following steps:
S101: by required program entry stm32f103rct6 single-chip microcomputer；
S102: the different speed during being tapped using the measurement of hc-sr04 ultrasonic wave speed measuring module, by measured numerical value
Stm32f103rct6 single-chip microcomputer is transferred to by internal wiring；
S103: selected by the different speed of stm32f103rct6 single-chip microcomputer operational analysis, transmit a signal to wt588d-32l language
Sound module, to play the tum corresponding to friction speed, close to real skin drum.
Embodiment 3, such as Fig. 1, a kind of fast sound skinless drum demonstrator based on ultrasonic wave, including stm32f103rct6 monolithic
Machine, voice module, ultrasonic wave speed measuring module；Wherein with stm32f103rct6 single-chip microcomputer as core, stm32f103rct6 monolithic
Machine and voice module, ultrasonic wave speed measuring module connects.
Preferably, described ultrasonic wave speed measuring module adopts hc-sr04 ultrasonic wave speed measuring module, and supply voltage is 5v, detects
Distance is 200cm, and detection accuracy is 0.3cm.The measured value that ultrasonic wave speed measuring module feeds back all the time is different from, according to reality
Border situation analysis, adjusts ultrasonic wave transmission interval, eliminates the shake of the velocity amplitude in the case of reality measures, and determines and draws a ratio
The velocity amplitude of reality of relatively fitting, then feeds back to this velocity amplitude in stm32 single-chip microcomputer again, is further analyzed.
Preferably, the time difference method that described hc-sr04 ultrasonic wave speed measuring module employs for low speed calculates；Time difference method tests the speed
It is applied to low-speed motion object, if the time being transmitted into reception for the first time from ultrasonic wave is t1, after receiving echo-signal, send out one again
Secondary ultrasonic signal, secondary transmitting-receiving interval time be t2, then first time ultrasonic signal reach object when, transmitting probe with
Between object, distance is s1, and when second ultrasonic signal reaches object, between transmitting probe and object, distance is s2, then object
Movement velocity as follows.
Preferably, described voice module adopts wt588d-32l voice module, and supply voltage is 12v, wt588d-32l language
Sound chip sample rate is 6k, and memory capacity is the minimum voice length of every 1 address during 4m is 125ms, can play altogether
The language of 100s, maximum address is 0x1ef, and recording actual address is 0x10.
Preferably, in recorded speech, all voices after current address are by certainly for described wt588d-32l voice module
Dynamic deletion, the storage content before current address is constant, and during recorded speech from the beginning of initial address 01h, voice combination is no substantially
Discontinuously feel, clear sound, nature, the various different tum of recording playback, the tum of the skin drum under reduction actual conditions.
As Fig. 2, a kind of communication means of the fast sound skinless drum demonstrator based on ultrasonic wave, comprise the following steps:
S101: by required program entry stm32f103rct6 single-chip microcomputer；
S102: the different speed during being tapped using the measurement of hc-sr04 ultrasonic wave speed measuring module, by measured numerical value
Stm32f103rct6 single-chip microcomputer is transferred to by internal wiring；
S103: selected by the different speed of stm32f103rct6 single-chip microcomputer operational analysis, transmit a signal to wt588d-32l language
Sound module, to play the tum corresponding to friction speed, close to real skin drum.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to invention protection domain
Restriction, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
The various modifications that creative work to be paid can be made or deformation are still within the scope of the present invention.
Claims (6)
1. a kind of fast sound skinless drum demonstrator based on ultrasonic wave is it is characterised in that include stm32f103rct6 single-chip microcomputer, language
Sound module, ultrasonic wave speed measuring module；Wherein with stm32f103rct6 single-chip microcomputer as core, stm32f103rct6 single-chip microcomputer and language
Sound module, ultrasonic wave speed measuring module connects.
2. the fast sound skinless drum demonstrator based on ultrasonic wave according to claim 1 is it is characterised in that described ultrasound
Fast module adopts hc-sr04 ultrasonic wave speed measuring module, and supply voltage is 5v, and detection range is 2cm-450cm, and detection accuracy is
0.3cm.
3. the fast sound skinless drum demonstrator based on ultrasonic wave according to claim 2 is it is characterised in that described hc-sr04
The time difference method that ultrasonic wave speed measuring module employs for low speed calculates.
4. the fast sound skinless drum demonstrator based on ultrasonic wave according to claim 1 is it is characterised in that described voice module
Using wt588d-32l voice module, supply voltage is 12v, and wt588d-32l speech chip sample rate is 6k, memory capacity
Minimum voice length for 1 address every during 4m is 125ms, can play altogether the language of 100s, and maximum address is 0x1ef, record
Sound actual address is 0x10-0x1ef.
5. the fast sound skinless drum demonstrator based on ultrasonic wave according to claim 4 is it is characterised in that wt588d-32l language
In recorded speech, all voices after current address are automatically left out sound module, and the storage content before current address is not
Become, during recorded speech from the beginning of initial address 01h, voice combination is no substantially discontinuously felt, clear sound, nature, and recording playback is various not
Same tum, the tum of the skin drum under reduction actual conditions.
6. the communication means of the fast sound skinless drum demonstrator based on ultrasonic wave according to any one of claim 1-6, it is special
Levy and be, comprise the following steps:
S101: by required program entry stm32f103rct6 single-chip microcomputer；
S102: the different speed during being tapped using the measurement of hc-sr04 ultrasonic wave speed measuring module, by measured numerical value
Stm32f103rct6 single-chip microcomputer is transferred to by internal wiring；
S103: selected by the different speed of stm32f103rct6 single-chip microcomputer operational analysis, transmit a signal to wt588d-32l language
Sound module, to play the tum corresponding to friction speed, close to real skin drum.
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| CN201610706481.7A CN106340229A (en) | 2016-08-23 | 2016-08-23 | Velocity-sound skinless drum demonstration instrument based on ultrasonic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610706481.7A CN106340229A (en) | 2016-08-23 | 2016-08-23 | Velocity-sound skinless drum demonstration instrument based on ultrasonic |
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| CN106340229A true CN106340229A (en) | 2017-01-18 |
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ID=57824673
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| CN201610706481.7A Pending CN106340229A (en) | 2016-08-23 | 2016-08-23 | Velocity-sound skinless drum demonstration instrument based on ultrasonic |
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| CN201429974Y (en) * | 2009-05-26 | 2010-03-24 | 自贡市挚诚科技有限公司 | Simulation demonstration device without drum |
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| CN203799637U (en) * | 2013-11-20 | 2014-08-27 | 温州三圣教仪有限公司 | Multifunctional skin-free drum |
| CN203982780U (en) * | 2013-11-04 | 2014-12-03 | 北京睿联嘉业科技有限公司 | Skinless drum based on vision and the dual experience of the sense of hearing |
| JP2014535079A (en) * | 2011-11-09 | 2014-12-25 | アールトム コーポレーション | Acoustic / electronic drum assembly |
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2016
- 2016-08-23 CN CN201610706481.7A patent/CN106340229A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006162904A (en) * | 2004-12-06 | 2006-06-22 | Yamaha Corp | Sound generation control method based on performance operation prediction, and electronic musical instrument |
| CN101112074A (en) * | 2005-02-02 | 2008-01-23 | 澳迪欧布兰克斯电子产品产业商业股份有限公司 | Mobile communication device with music instrumental functions |
| CN201429974Y (en) * | 2009-05-26 | 2010-03-24 | 自贡市挚诚科技有限公司 | Simulation demonstration device without drum |
| JP2014535079A (en) * | 2011-11-09 | 2014-12-25 | アールトム コーポレーション | Acoustic / electronic drum assembly |
| CN103295564A (en) * | 2012-03-02 | 2013-09-11 | 卡西欧计算机株式会社 | Musical performance device, method for controlling musical performance device |
| CN102907797A (en) * | 2012-10-24 | 2013-02-06 | 天津大学 | Air-blown gloves based on acceleration sensors and control method thereof |
| CN203422875U (en) * | 2013-09-10 | 2014-02-05 | 宁波华茂文教股份有限公司 | Demonstration instrument for skinless drum |
| CN203982780U (en) * | 2013-11-04 | 2014-12-03 | 北京睿联嘉业科技有限公司 | Skinless drum based on vision and the dual experience of the sense of hearing |
| CN203799637U (en) * | 2013-11-20 | 2014-08-27 | 温州三圣教仪有限公司 | Multifunctional skin-free drum |
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