CN110136560B - Oblique-section type bionic bat-ear horn model function device and experimental method - Google Patents
Oblique-section type bionic bat-ear horn model function device and experimental method Download PDFInfo
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- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 27
- 206010071232 Protuberant ear Diseases 0.000 title claims abstract description 25
- 238000002474 experimental method Methods 0.000 title claims abstract description 10
- 210000000613 ear canal Anatomy 0.000 claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
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- 238000004458 analytical method Methods 0.000 description 8
- 241000288673 Chiroptera Species 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 5
- 210000000883 ear external Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000746998 Tragus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The present disclosure provides a truncated bionic bat-ear horn model function device and an experimental method. Wherein, the bionical bat ear loudspeaker model functional device of oblique section formula includes: a control unit; simulating auricles in a truncated mode; the auricle cone angle adjusting part is used for receiving an auricle cone angle adjusting instruction sent by the control part and realizing the adjustment of the truncated type simulated auricle cone angle; the auricle section angle adjusting part is used for receiving an auricle section angle adjusting instruction sent by the control part and realizing the adjustment of the section angle of the truncated simulated auricle; one end of the simulated auditory canal is connected with the truncated simulated auricle, and the other end of the simulated auditory canal is connected with the auditory canal position adjusting part; the ear canal position adjusting part is used for receiving an ear canal position adjusting instruction sent by the control part and realizing the adjustment of the ear canal position.
Description
Technical Field
The disclosure belongs to the field of bionic simulation devices, and particularly relates to an oblique-section type bionic batear horn model function device and an experimental method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The auricle of the animal not only has the function of collecting external sound into the auditory canal, but also has the functions of positioning, distinguishing front and back sound sources, modulating frequency spectrum and the like, and the auricle of the batouter ear has important functions in predation behavior and target detection of the animal. The external ear of a bat generally consists of the pinna, the tragus (or antitragus), the ear canal, etc. In terms of appearance, bats often have particularly complex geometries on their pinna, such as ridge and groove structures.
The inventor finds that the conventional bat ear bionic device is imperfect and has a fixed structure, and if the influence of different bat ear contour parameters on the directional distribution of a sound field is correspondingly analyzed, a plurality of different bat ear bionic devices need to be manufactured, so that the operation process needs to be repeated for many times, and the analysis efficiency is low.
Disclosure of Invention
The first aspect of the present disclosure provides an oblique truncated type bionic bat-ear horn model function device, which can change the auricle cone angle, the auricle section angle and the appearance parameters of the ear canal position through the movement of related devices, thereby improving the analysis efficiency of animal external ear bionic simulation and the research on the relation between the auricle appearance parameters and the sound field directivity and the accuracy of the analysis result.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
an oblique-section type bionic batear horn model function device comprises:
a control unit;
simulating auricles in a truncated mode;
the auricle cone angle adjusting part is used for receiving an auricle cone angle adjusting instruction sent by the control part and realizing the adjustment of the truncated type simulated auricle cone angle;
the auricle section angle adjusting part is used for receiving an auricle section angle adjusting instruction sent by the control part and realizing the adjustment of the section angle of the truncated simulated auricle;
one end of the simulated auditory canal is connected with the truncated simulated auricle, and the other end of the simulated auditory canal is connected with the auditory canal position adjusting part; the ear canal position adjusting part is used for receiving an ear canal position adjusting instruction sent by the control part and realizing the adjustment of the ear canal position.
A second aspect of the present disclosure provides an experimental method of a truncated bionic batear horn model function device.
An experimental method of a truncated bionic batear horn model functional device comprises the following steps:
recording the influence of the change of the cone opening angle on the directional distribution of the sound field through the adjusting part of the cone angle of the auricle;
recording the influence of different section angles on a simulated sound field through an auricle section angle adjusting part;
the effect of the ear canal position on the sound field distribution was recorded by simulating the ear canal.
The beneficial effects of this disclosure are:
(1) the method realizes the change of the auricle shape parameters, thereby researching the influence of different auricle shape parameters on the directional distribution of the sound field; the auricle cone angle, the auricle section angle and the ear canal position are accurately adjusted, so that subsequent experiments are richer;
(2) the device has the advantages of compact structure, wide application and real simulation, can meet various experimental requirements, changes the cone angle of the auricle, the section angle of the auricle and the appearance parameters of the ear canal position through the motion of related devices, and improves the analysis efficiency of animal external ear bionic simulation and the research on the relation between the appearance parameters of the auricle and the directivity of the sound field and the accuracy of an analysis result.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic structural view of an oblique-section type bionic batear horn model functional device provided in an embodiment of the present disclosure.
Fig. 2 is an axonometric view of an oblique-section type bionic batear horn model functional device provided by the embodiment of the disclosure.
The device comprises a base 1, a second linear servo motor 2, a second displacement sensor 3, a control part 4, a hinge disc 5, a 6-truncated simulated auricle, a 7-truncated amplified plane disc 8, a restraint rod 9, a simulated auditory canal 10, a mechanical arm 11 and a mechanical arm fixing platform 11.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
In practical applications, a sonar system usually does not adopt a very complicated antenna shape, whether or not the bionic principle is applied. According to the design principle, the contour parameters of the bats are referred, and the oblique-section type batear horn model only having the basic characteristics of the bats can be obtained by a geometric method, so that the main functions of the referred batears can be realized, and the performance is improved. In order to further research the effect of the external shape parameters of the bats auricles, corresponding devices are urgently needed to complete the simulation of the external shape parameters of different bats auricles, the cone angle, the section angle and the position of the auditory canal of the truncated bathorn model are changed by controlling the movement of related devices, the influence of the external shape parameters of different bats on the sound field directivity distribution is researched, and the corresponding simulation, analysis and research are realized.
In order to solve the above problems in the background art, the present disclosure provides an oblique section type bionic batear horn model function device.
The technical scheme of the disclosure is explained in detail in the following with the specific drawings:
as shown in fig. 1 and fig. 2, the oblique-section type bionic batear horn model function device of the present embodiment includes: the control part, the truncated type simulated auricle, the auricle cone angle adjusting part, the auricle section angle adjusting part and the simulated auditory canal.
In specific implementation, the control part may be implemented by an FPGA, a PLC or other programmable logic devices, and those skilled in the art may specifically select the control part according to actual situations, and will not be described in detail here.
The truncated simulated auricle can be made of a tough and shrinkable plastic material, and the parameters are shown in table 1.
TABLE 1 truncated simulated auricle parameters
The simulated auditory canal can be made of plastic or rubber and other materials.
It will be appreciated that the material of the simulated ear canal may be specifically selected by those skilled in the art based on the actual circumstances.
As shown in fig. 1 and 2, the pinna cone angle adjustment portion, the pinna cut surface angle adjustment portion, and the ear canal position adjustment portion are mounted on the base 1.
In specific implementation, the auricle cone angle adjusting part is used for receiving an auricle cone angle adjusting instruction sent by the control part and realizing the adjustment of the truncated type simulated auricle cone angle.
Specifically, the auricle cone angle adjustment portion includes:
the first linear servo motor is connected with the control part 4, a first displacement sensor is arranged on an output shaft of the first linear servo motor, and the first displacement sensor is used for detecting a displacement signal of the output shaft of the first linear servo motor and transmitting the displacement signal to the control part 4; the output shaft of the first linear servo motor is connected with a hinge plate 5, and the hinge plate 5 is connected with the truncated-cone-shaped simulated auricle through at least two constraint rods 8.
The control part 4 controls the output shaft direction of the first linear servo motor of the hinge plate 5 to move up and down so as to control the angle change of the restraint rod (like opening and closing an umbrella) and further realize the adjustment of the cone angle.
In specific implementation, the auricle section angle adjusting part is used for receiving an auricle section angle adjusting instruction sent by the control part and realizing the adjustment of the section angle of the truncated simulated auricle;
specifically, the auricle tangential plane angle adjusting part includes:
each group of identical components comprises a second linear servo motor 2, a second displacement sensor 3 is mounted on an output shaft of the second linear servo motor 2, and the second displacement sensor 3 is connected and fixed with an oblique section amplification plane disc 7 of an oblique section type auricle; the second displacement sensor 3 is used for detecting a displacement signal of the output shaft of the second linear servo motor and transmitting the displacement signal to the control part 4; the second linear servo motor 2 is also connected with the control part 4.
In the specific implementation, one end of the simulated auditory canal 9 is connected with the truncated simulated auricle 6, and the other end is connected with the auditory canal position adjusting part; the ear canal position adjusting part is used for receiving an ear canal position adjusting instruction sent by the control part and realizing the adjustment of the ear canal position.
Specifically, the ear canal position adjustment part includes:
the mechanical arm 10, mechanical arm 10 is fixed on mechanical arm fixed platform 11, mechanical arm fixed platform 11 links to each other with control part 4, mechanical arm 10 links to each other with simulation duct 9.
Wherein, the mechanical arm is a pneumatic rope-controlled flexible mechanical arm.
The mechanical arm is a multi-degree-of-freedom mechanical arm.
The embodiment realizes the change of the auricle shape parameters, thereby researching the influence of different auricle shape parameters on the directional distribution of the sound field; the auricle cone angle, the auricle section angle and the ear canal position are accurately adjusted, so that subsequent experiments are richer;
the bionic simulation device has the advantages of compact structure, wide application and real simulation, can meet various experimental requirements, changes the cone angle of the auricle, the angle of the section of the auricle and the appearance parameters of the position of the auditory canal through the motion of related devices, and improves the analysis efficiency of the bionic simulation of the animal external ear and the research on the relation between the appearance parameters of the auricle and the directivity of a sound field and the accuracy of an analysis result.
The experimental method of the oblique-section type bionic batear horn model functional device in the embodiment comprises the following steps:
recording the influence of the change of the cone opening angle on the directional distribution of the sound field through the adjusting part of the cone angle of the auricle;
recording the influence of different section angles on a simulated sound field through an auricle section angle adjusting part;
the effect of the ear canal position on the sound field distribution was recorded by simulating the ear canal.
The experimental device can be used for researching the relation between the auricle shape parameters and the sound field. The influence of the change of the cone opening angle on the directional distribution of the sound field is researched through the adjusting part of the cone angle of the auricle, the influence of different section angles on the simulated sound field is researched through the adjusting part of the section angle of the auricle, the influence of the position of the auditory canal on the sound field distribution is researched through the simulated auditory canal, and two or three of the three variables can be changed, so that experimental data are increased, and the subsequent theoretical and physical research is facilitated.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (8)
1. An oblique-section type bionic batear horn model function device is characterized by comprising:
a control unit;
simulating auricles in a truncated mode;
the auricle cone angle adjusting part is used for receiving an auricle cone angle adjusting instruction sent by the control part and realizing the adjustment of the truncated type simulated auricle cone angle;
the auricle section angle adjusting part is used for receiving an auricle section angle adjusting instruction sent by the control part and realizing the adjustment of the section angle of the truncated simulated auricle;
one end of the simulated auditory canal is connected with the truncated simulated auricle, and the other end of the simulated auditory canal is connected with the auditory canal position adjusting part; the ear canal position adjusting part is used for receiving an ear canal position adjusting instruction sent by the control part and realizing the adjustment of the ear canal position;
the auricle cone angle adjusting portion includes:
the first linear servo motor is connected with the control part, a first displacement sensor is arranged on an output shaft of the first linear servo motor, and the first displacement sensor is used for detecting a displacement signal of the output shaft of the first linear servo motor and transmitting the displacement signal to the control part;
the auricle tangent plane angle adjustment part includes:
and each group of identical components comprises a second linear servo motor, a second displacement sensor is mounted on an output shaft of the second linear servo motor, and the second displacement sensor is connected and fixed with the oblique section amplification plane disc of the oblique section auricle.
2. The oblique-section bionic bat-ear horn model functional device of claim 1, wherein the auricle cone angle adjusting part, the auricle section angle adjusting part and the ear canal position adjusting part are all installed on the base.
3. The oblique-section bionic bat-ear horn model functional device of claim 1, wherein the auricle cone angle adjusting part further comprises:
the output shaft of the first linear servo motor is connected with a hinge disc, and the hinge disc is connected with the truncated-cone-shaped simulated auricle through at least two constraint rods.
4. The oblique-section bionic bat-ear horn model function device as claimed in claim 1, wherein the auricle section angle adjusting part further comprises:
the second displacement sensor is used for detecting a displacement signal of the output shaft of the second linear servo motor and transmitting the displacement signal to the control part; and the second linear servo motor is also connected with the control part.
5. The oblique-section type bionic bat-ear horn model functional device of claim 1, wherein the ear canal position adjusting part comprises:
the mechanical arm is fixed on the mechanical arm fixing platform, the mechanical arm fixing platform is connected with the control part, and the mechanical arm is connected with the simulated auditory meatus.
6. The device as claimed in claim 5, wherein the robotic arm is a pneumatic rope-controlled flexible robotic arm.
7. The device as claimed in claim 5, wherein the robotic arm is a multi-degree of freedom robotic arm.
8. An experimental method of the truncated bionic batear horn model functional device as claimed in any one of claims 1-7, comprising:
recording the influence of the change of the cone opening angle on the directional distribution of the sound field through the adjusting part of the cone angle of the auricle;
recording the influence of different section angles on a simulated sound field through an auricle section angle adjusting part;
the effect of the ear canal position on the sound field distribution was recorded by simulating the ear canal.
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Denomination of invention: Functional device and experimental method of oblique cut bionic bat ear horn model Effective date of registration: 20220124 Granted publication date: 20201229 Pledgee: Branches of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: Jinan bosai Network Technology Co.,Ltd. Registration number: Y2022980000944 |
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Denomination of invention: Functional device and experimental method of oblique bionic bat ear horn model Effective date of registration: 20230112 Granted publication date: 20201229 Pledgee: Branches of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: Jinan bosai Network Technology Co.,Ltd. Registration number: Y2023980031157 |
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Denomination of invention: Functional device and experimental method of oblique section biomimetic bat ear horn model Granted publication date: 20201229 Pledgee: Branches of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: Jinan bosai Network Technology Co.,Ltd. Registration number: Y2023980075846 |