CN110686815A - Drum knocking strength detection method - Google Patents
Drum knocking strength detection method Download PDFInfo
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- CN110686815A CN110686815A CN201911040038.0A CN201911040038A CN110686815A CN 110686815 A CN110686815 A CN 110686815A CN 201911040038 A CN201911040038 A CN 201911040038A CN 110686815 A CN110686815 A CN 110686815A
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- drum
- knocking
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0052—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a drum knocking strength detection method, wherein at least three vibration sensors are uniformly arranged on a drum wall, and the strength detection method comprises the following steps: calculating an average value of actual detection data of the vibration sensor to obtain an intensity value, and further comprising: the knocking position is detected, and the method for detecting the knocking position comprises the following steps: when the actual detection values of the vibration sensors are consistent, judging that the knocking position is the central point of the drum; when the actual detection data of the vibration sensors are inconsistent, the distance from the knocking point to each sensor is calculated based on the actual detection data of each vibration sensor, the vibration attenuation ratio and the scale value of the unit distance intensity change calculated in advance, so that the knocking position is determined. According to the drum knocking strength detection method, the vibration sensors are added on the existing primary drum and the existing electronic drum, so that accurate detection of knocking areas and strength is achieved, and the teaching purpose of correcting knocking positions and knocking strength during personal exercise can be achieved.
Description
Technical Field
The invention relates to the technical field of drums, in particular to a drum knocking strength detection method.
Background
The drum is a percussion instrument, and common drums are divided into electronic drums and native drums, but the existing electronic drums and native drums cannot realize percussion intensity identification, and the intensity is the soul of percussion rhythm. In the practice of the tap strength, it is important to recognize the tap strength.
Therefore, how to provide a method capable of identifying the strength of the tap is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the invention provides a method for detecting drum knock intensity and knock area, which can realize drum knock intensity and knock area identification.
In order to achieve the purpose, the invention adopts the following technical scheme:
a drum knock intensity detection method, in which at least three vibration sensors are uniformly mounted on a drum wall, includes:
and calculating the average value of the actual detection data of the vibration sensor to obtain the intensity value.
Preferably, the method further comprises the following steps: the method for detecting the knocking position comprises the following steps:
when the actual detection values of the vibration sensors are consistent, judging that the knocking position is the central point of the drum;
when the actual detection data of the vibration sensors are inconsistent, the distances from the knocking point to the sensors are calculated based on the actual detection data of each vibration sensor, the vibration attenuation proportion and the scale value of the unit distance intensity change calculated in advance, and therefore the knocking position is determined.
Preferably, the method for solving the scale value of the intensity variation per unit distance includes:
calculating an average value of the intensity values of the vibration sensors;
and dividing the average value by the distance from each vibration sensor to the center point of the drum and multiplying the distance by a vibration attenuation ratio to obtain a scale value of the intensity change of the unit distance.
Preferably, the vibration sensor includes three.
According to the technical scheme, compared with the prior art, the drum knocking strength detection method is characterized in that the vibration sensors are added to the existing primary drum and the existing electronic drum to realize accurate detection of the knocking area and the knocking strength, and further the teaching purpose of correcting the knocking position and the knocking strength during personal exercise can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a drum strike intensity and strike area detection method according to the present invention;
FIG. 2 is a schematic view of the present invention providing a tap location at a center point;
FIG. 3 is a schematic view of the invention providing a tap location at a non-center point.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the invention discloses a method for detecting drum knocking strength and knocking area, wherein at least three vibration sensors are uniformly installed on a drum wall, and specifically, the vibration sensors can be installed on the drum wall in an adhering manner. The intensity detection method specifically comprises the following steps:
and calculating the average value of the actual detection data of the vibration sensor to obtain the intensity value.
Preferably, the vibration sensor includes three.
The vibration sensor is arranged on the drum surface to influence the vibration sound production of the drum, and the external sensor is easily influenced by the sound production of other drums.
In order to further optimize the above technical solution, the method further includes a step of detecting a tap position based on the above embodiment, where the method of detecting a tap position includes:
when the actual detection values of the vibration sensors are consistent, judging that the knocking position is the central point of the drum;
when the actual detection data of the vibration sensors are inconsistent, the distances from the knocking point to the sensors are calculated based on the actual detection data of each vibration sensor, the vibration attenuation proportion and the scale value of the unit distance intensity change calculated in advance, and therefore the knocking position is determined.
Through the technical scheme provided by the invention, not only can the drum knocking strength be measured, but also the drum knocking position can be accurately identified. The technical scheme provided by the invention is simultaneously suitable for the primary drum and the electronic drum, so that a learner can practice and evaluate the knocking strength in the learning process.
In order to further optimize the above technical solution, the method for solving the scale value of the intensity variation per unit distance includes:
calculating an average value of the intensity values of the vibration sensors;
and dividing the average value by the distance from each vibration sensor to the center point of the drum and multiplying the distance by a vibration attenuation ratio to obtain a scale value of the intensity change of the unit distance.
In addition, it should be noted that the vibration attenuation of different knocking areas is linear, and since the material of the drum head is determined, the linear proportion of the attenuation can be obtained in advance through software calibration.
Taking three vibration sensors as an example, referring to fig. 2, a black dot at the center represents a tapping point, when the tapping is at the center of a circle, the data collected by the three sensors are almost consistent, and the tapping intensity is the sum of the data detected by the three sensors divided by 3.
Referring to fig. 3, when the user taps on other areas, the tap point is far away from one or two sensors and approaches to the other one or two sensors, although the sensing values of the three sensors are different, the sum of the three sensors is close to the sum of the three sensors when the user taps on the central point with the same force (the vibration attenuation of different tap areas is linear and can be compensated in an algorithm), the distance from the central point to each sensor is known, the sum of the three sensors is divided by three, the distance from the sensor to the central point is divided by the distance from the sensor to the central point, and the distance is multiplied by an attenuation ratio to obtain a scale value of the intensity change of the unit distance. Then, the distances from the knocking point to the sensors can be obtained by multiplying the actual values of the sensors by the attenuation proportion and dividing the actual values by the scale values of the intensity change of the unit distance, after the distances from the three sensors to the knocking point are respectively calculated, arc lines are drawn in the drum surface by taking each sensor as the center of a circle and taking the corresponding distance as the radius, and the intersection points of more than two arc lines are the knocking points.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A drum knock intensity detecting method characterized by uniformly mounting at least three vibration sensors on a drum wall, comprising:
and calculating the average value of the actual detection data of the vibration sensor to obtain the intensity value.
2. The drum stroke strength detection method according to claim 1, further comprising: the method for detecting the knocking position comprises the following steps:
when the actual detection values of the vibration sensors are consistent, judging that the knocking position is the central point of the drum;
when the actual detection data of the vibration sensors are inconsistent, the distances from the knocking point to the sensors are calculated based on the actual detection data of each vibration sensor, the vibration attenuation proportion and the scale value of the unit distance intensity change calculated in advance, and therefore the knocking position is determined.
3. The drum knock intensity detection method according to claim 2, wherein the solving method of the scale value of intensity variation per unit distance includes:
calculating an average value of the intensity values of the vibration sensors;
and dividing the average value by the distance from each vibration sensor to the center point of the drum and multiplying the distance by a vibration attenuation ratio to obtain a scale value of the intensity change of the unit distance.
4. The method for detecting drum knock intensity according to any one of claims 1 to 3, wherein the vibration sensors include three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040038.0A CN110686815A (en) | 2019-10-29 | 2019-10-29 | Drum knocking strength detection method |
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| CN201911040038.0A CN110686815A (en) | 2019-10-29 | 2019-10-29 | Drum knocking strength detection method |
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| CN110686815A true CN110686815A (en) | 2020-01-14 |
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| CN201911040038.0A Pending CN110686815A (en) | 2019-10-29 | 2019-10-29 | Drum knocking strength detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959745A (en) * | 2021-10-08 | 2022-01-21 | 湖南美创数字科技有限公司 | Novel interactive drumhead knocking detection system |
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| CN103531054A (en) * | 2013-10-18 | 2014-01-22 | 太仓市方克乐器有限公司 | Practice device for bass drum and snare drums in drum set |
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| CN113959745A (en) * | 2021-10-08 | 2022-01-21 | 湖南美创数字科技有限公司 | Novel interactive drumhead knocking detection system |
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