CN218473311U - Can splice regular hexagon sound array device - Google Patents
Can splice regular hexagon sound array device Download PDFInfo
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- CN218473311U CN218473311U CN202222885414.XU CN202222885414U CN218473311U CN 218473311 U CN218473311 U CN 218473311U CN 202222885414 U CN202222885414 U CN 202222885414U CN 218473311 U CN218473311 U CN 218473311U
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Abstract
The utility model relates to a splicing regular hexagon sound array device, which comprises a microphone, a regular hexagon sound array panel and an array bracket; small regular hexagon hollow structures are uniformly arranged on the regular hexagon sound array panel, and microphone mounting holes are uniformly arranged around the hollow structures; the side edge of the regular hexagon sound array panel is provided with a bulge and a groove which are used for splicing the panels; the microphone is arranged on a regular hexagon sound array panel, and the regular hexagon sound array panel is arranged on the array bracket. The utility model discloses but regular hexagon acoustic array panel among the concatenation regular hexagon acoustic array device can realize the concatenation through recess and protruding mechanical structure, and the form of array can be applicable to the sound signal collection in different operating modes, the sound field through the transform of concatenation freedom.
Description
Technical Field
The utility model relates to a sound signal gathers technical field, concretely relates to can splice regular hexagon acoustic array device.
Background
The sound source localization technology is a technology for determining the relative direction and distance between a sound source and a microphone, that is, estimating the direction and distance of the sound source position. At present, sound source positioning technology mainly uses a microphone to collect sound signals, and uses signal processing technology to analyze and process the collected signals, so as to determine the position of a sound source in a space. In practical engineering applications, a series of microphones of the same type are generally arranged in positions in a manner favorable for receiving spatial signals, and a microphone array is formed to acquire an acoustic signal in a target direction.
The key influencing factors of the microphone array mainly include the frequency of a detected sound source, the distance from the sound source to the array plate, the aperture of the array plate, the number and distribution of microphones and the performance of a microphone sensor. Under certain conditions, the resolution of the array can be improved by increasing the aperture size and the detection frequency, but at the same time, the value of the dynamic range as a nonlinear function of the frequency becomes smaller with the increase of the frequency, and the decrease is more obvious particularly in a high-frequency part, so that a plurality of false sound sources are generated in beam forming. Therefore, when the sound source is at a higher frequency, the dynamic range is obviously reduced, so that the position of the sound source cannot be clear, in many cases, the distance between the sound source and the array plate and the performance of the microphone sensor cannot be changed under fixed conditions, and the best mode is to select a reasonable sound array arrangement mode to improve the resolution ratio in the receivable dynamic range.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but concatenation regular hexagon sound array device, this sound array device's array form can be through the transform of concatenation freedom.
The purpose of the utility model can be realized through the following technical scheme: a splicing regular hexagon sound array device comprises a microphone, a regular hexagon sound array panel and an array support; small regular hexagon hollow structures are uniformly arranged on the regular hexagon sound array panel, the hollow structures can eliminate interference caused by sound wave reflection and simultaneously reduce the weight of the sound array device as much as possible, and microphone mounting holes are uniformly arranged around the hollow structures; the side edge of the regular hexagonal acoustic array panel is provided with a bulge and a groove which are used for splicing the panels; the microphone is arranged on the regular hexagon sound array panel, and the regular hexagon sound array panel is arranged on the array bracket.
Further, the microphone is installed in the microphone installation hole in the regular hexagon sound array panel through the microphone hole sleeve, the microphone hole sleeve comprises a 1/2 inch microphone fixing seat and a 1/4 inch microphone fixing seat, and the 1/4 inch microphone fixing seat is nested inside the 1/2 inch microphone fixing seat.
Furthermore, a central circular hole sleeve for fixing a camera is arranged at the central position of the regular hexagonal acoustic array panel, so that acoustic imaging is completed through the camera.
Furthermore, the middle position of the side edge of the regular hexagon sound array panel is provided with a 1/2 central circular hole sleeve, and the vertex angle is provided with a 1/3 central circular hole sleeve; when the two arrays are spliced with each other, the two edges of the two array panels are spliced together, and a camera for acoustic imaging is arranged in a complete central circular hole sleeve spliced by 1/2 of the central circular hole sleeves on the two edges connected with each other by the arrays; when the three arrays are spliced with each other, a camera for acoustic imaging is installed in a complete central circular hole sleeve formed by splicing 1/3 central circular hole sleeves of three top angles at which the arrays are connected with each other.
Furthermore, the side edge of the regular hexagon sound array panel is provided with a bulge and a groove for splicing panels and installing the panel and the array bracket, and is also provided with a cavity for installing the panel and the array bracket, wherein the sizes of the bulge, the groove and the cavity cannot exceed the frame of the regular hexagon sound array panel; when the arrays are spliced with each other, the stability of connecting the two arrays can be ensured only by combining the grooves and the bulges on the adjacent array panels, the arrays can be spliced infinitely due to the unique characteristic of the regular hexagon, and the arrays can be tightly combined when being spliced, so that the conflict cannot occur.
Furthermore, the array support comprises a telescopic supporting rod and an array support base, and the supporting rod can be freely stretched to adjust the height of the acoustic array panel; the array bracket is made of aluminum alloy; the telescopic supporting rod comprises three sections of square aluminum alloy nested supporting rods, and the array support base comprises a circular base; regular hexagon sound array panel install on scalable bracing piece, scalable bracing piece is installed on the array support base.
Furthermore, scalable bracing piece and regular hexagon sound array panel junction be equipped with the protruding and the supporting hole groove of recess and bolt on the side of regular hexagon sound array panel, still be equipped with the supporting stand of cavity on the side of regular hexagon sound array panel, can insert the hexagon array, fix the array better, support the weight of array, guarantee the stability of array.
Furthermore, when the acoustic array device is a single regular hexagon acoustic array, one side of the regular hexagon acoustic array panel is connected with the telescopic supporting rod, and the end of the telescopic supporting rod connected with the regular hexagon acoustic array panel is a parallel contact surface.
Furthermore, when the acoustic array device is spliced by two or more regular hexagonal acoustic arrays, one end of the telescopic supporting rod connected with the spliced array panel is a V-shaped contact surface, the weight of the array is borne to the maximum extent by the connection mode, the stability of the whole device is ensured, and the looseness of the array connection position cannot be worried when the supporting rod is extended or shortened.
Furthermore, the regular hexagon sound array panel is made of metal foam aluminum with high hole density, the density of the whole aluminum is low, and the structure has the characteristics of light weight, high temperature resistance, corrosion resistance, strong fire resistance and the like besides the hardness and the shock resistance of the structure are guaranteed.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model relates to a can splice regular hexagon sound array device, including regular hexagon sound array and array support, wherein, two or more regular hexagon sound arrays can splice through recess and the arch around the array panel, and the array support includes scalable bracing piece and array support base, and regular hexagon sound array can be dismantled and installed on the array support; the acoustic array device has a detachable function, all components can be detached according to the acquisition requirement, the carrying is convenient, and the flexibility of the device is high;
2. the utility model discloses but concatenation regular hexagon acoustic array device has the dual-purpose, and regular hexagon acoustic array not only can use alone, can also splice the use according to actual acquisition demand simultaneously; when the regular hexagon acoustic array is used independently, the acoustic transmitters on the regular hexagon acoustic array panel are uniformly distributed, and the camera is arranged at the center of the panel; when the plurality of regular hexagonal acoustic arrays are spliced, the camera is arranged at the center of a splicing point; when in use, a proper array can be determined and selected according to requirements;
3. the utility model discloses but splice regular hexagon sound array device's regular hexagon sound array panel is equipped with little regular hexagon hollow out construction, and hollow out construction can alleviate sound array device's weight as far as when eliminating the interference that the sound wave reflection brought, evenly is equipped with the microphone mounting hole around hollow out construction, has guaranteed that the microphone can evenly distributed on whole array, and the space is used rationally;
4. the utility model discloses but the regular hexagon acoustic array panel of concatenation regular hexagon acoustic array device adopts metal foam aluminium processing to form, is favorable to reducing the influence that sound wave reflection and electromagnetic interference brought; the telescopic support rod is formed by processing hollow aluminum alloy, the center of gravity is reasonably distributed on the circular array support base made of aluminum alloy, the weight of the acoustic array is greatly reduced, the manufacturing cost is saved, and the carrying is convenient;
5. the utility model discloses but microphone borehole jack among the concatenation regular hexagon sound array device adopts 3D to print, can decide the size that the borehole jack printed according to the diameter size of microphone, has improved the flexibility of array microphone installation and has practiced thrift the cost of manufacture.
Drawings
Fig. 1 is a schematic diagram of an array panel of the acoustic array device capable of splicing regular hexagons according to the present invention;
fig. 2 is a schematic side view of an array panel of the acoustic array device capable of splicing a regular hexagon according to the present invention;
fig. 3 is a schematic diagram of an array support of the acoustic array device capable of splicing a regular hexagon according to the present invention;
FIG. 4 is a schematic view of a microphone grommet configuration;
FIG. 5 is a schematic view of the installation of a single regular hexagonal acoustic array apparatus;
FIG. 6 is a schematic view of the installation of two spliced regular hexagonal acoustic array devices;
FIG. 7 is a schematic view of the installation of three spliced regular hexagonal acoustic array devices;
the labels in the figure are: 1: a regular hexagonal acoustic array panel; 11: a microphone mounting hole; 12: a central circular hole sleeve; 12.1:1/2 of the central circular hole sleeve; 12.2:1/3 of the central circular hole sleeve; 13: a protrusion; 14: a groove; 15: a cavity; 2: an array support; 21: a telescopic supporting rod; 21.1: a hole groove; 21.2: a bolt; 21.3: a column; 22: an array support base; 3: a microphone hole sleeve; 31:1/2 inch microphone fixing seat; 32:1/4 inch microphone holder.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The various devices used in the following examples are commercially available.
Example 1
Referring to fig. 1-4, a spliceable regular hexagonal acoustic array device includes a microphone, a regular hexagonal acoustic array panel 1, and an array support 2;
as shown in fig. 1-2, small regular hexagonal hollow structures are uniformly arranged on the regular hexagonal acoustic array panel 1, and microphone mounting holes 11 are uniformly arranged around the hollow structures; the center of the regular hexagon acoustic array panel 1 is provided with a center round hole sleeve 12 for fixing a camera, the middle of the side edge of the hexagon acoustic array panel 1 is provided with 1/2 of the center round hole sleeve 12.1, and the vertex angle is provided with 1/3 of the center round hole sleeve 12.2; the side edge of the regular hexagon acoustic array panel 1 is provided with a bulge 13 and a groove 14 which are used for splicing panels and installing the panel and the array bracket 2, and is also provided with a cavity 15 used for installing the panel and the array bracket 2;
as shown in fig. 3, the array frame 2 includes a retractable supporting rod 21 and an array frame base 22; the array bracket 2 is made of aluminum alloy; the telescopic supporting rod 21 comprises three sections of square aluminum alloy nested supporting rods, the array support base 22 comprises a round base, the round base can uniformly distribute the weight of the whole supporting rod, and the stability of the supporting rod is ensured not to shake in the collecting process; the side edge of the telescopic supporting rod 21 is provided with a fixed clamping groove, so that the whole supporting rod can be fixed at different heights and can be kept stable, and the height of the array panel from the ground can be conveniently adjusted; the joint of the telescopic support rod 21 and the regular hexagon acoustic array panel 1 is provided with a hole groove 21.1 and a bolt 21.2 which are matched with the bulge 13 and the groove 14 on the side edge of the regular hexagon acoustic array panel 1, and is also provided with an upright post 21.3 which is matched with the cavity 15 on the side edge of the hexagon acoustic array panel 1; the top shape of the telescopic supporting rod 21 comprises a horizontal shape and a V shape, and a proper supporting rod can be selected according to the shape of the connection array;
as shown in fig. 4, the microphone hole sleeve 3 includes a 1/2 inch microphone holder 31 and a 1/4 inch microphone holder 32, wherein the 1/4 inch microphone holder 32 is nested inside the 1/2 inch microphone holder 31;
wherein, the microphone is installed on regular hexagon sound array panel 1 through microphone hole cover 3, and regular hexagon sound array panel 1 is installed on scalable bracing piece 21, and scalable bracing piece 21 is installed on array support base 22.
Example 2: single regular hexagon acoustic array device
As shown in fig. 5, when the acoustic array device is a single regular hexagon acoustic array, the side edge of the regular hexagon acoustic array panel 1 is connected with the telescopic supporting rod 21 with the horizontal top, the perfect splicing of the protrusion 13 and the groove 14 on the side edge of the regular hexagon acoustic array panel 1 with the hole groove 21.1 and the bolt 21.2 on the top of the telescopic supporting rod 21 and the nesting and matching of the cavity 15 on the side edge of the regular hexagon acoustic array panel 1 and the upright post 21.3 on the top of the telescopic supporting rod 21 are used for reinforcing the support, so as to ensure the stability of the array, a camera can be optionally installed in the central circular hole sleeve 12 in the center of the array panel, and the collection of the sound signals can be completed by combining with a microphone.
Example 3: two-spliced regular hexagon acoustic array device
As shown in fig. 6, when the acoustic array device is formed by splicing two regular hexagonal acoustic arrays, two regular hexagonal acoustic array panels 1 are spliced together through the protrusions 13 and the grooves 14 on the side edges, the center points of the two arrays are on the same horizontal line, and the side edges of the two arrays are connected with the telescopic supporting rod 21 with the V-shaped top, the stability of the array is ensured by the perfect splicing of the protrusions 13 and the grooves 14 on the side edges of the regular hexagonal acoustic array panels 1 with the hole grooves 21.1 and the pins 21.2 on the top of the telescopic supporting rod 21 and the nesting and matching of the cavities 15 on the side edges of the regular hexagonal acoustic array panels 1 and the pillars 21.3 on the top of the telescopic supporting rod 21, and the cameras for acoustic imaging can be selected to be installed in the complete central circular hole sleeves 12 spliced by 1/2 of the central circular hole sleeves 12.1 on the two mutually connected edges of the array, and the collection of the acoustic signals can be completed by combining the microphone.
Example 4: three-spliced regular hexagon acoustic array device
As shown in fig. 7, when the acoustic array device is formed by splicing three regular hexagonal acoustic arrays, three regular hexagonal acoustic array panels 1 are spliced together through protrusions 13 and grooves 14 on the side edges, the distances from the complete central circular hole sleeves 12 spliced by 1/3 central circular hole sleeves 12.2 on three vertex angles to the central point of each array are the same, the side edges of the arrays are connected with a telescopic support rod 21 with the top in a V shape, the stability of the arrays is ensured by the perfect splicing of the protrusions 13 and the grooves 14 on the side edges of the regular hexagonal acoustic array panels 1 and the hole grooves 21.1 and the pins 21.2 on the top of the telescopic support rod 21 and the nesting and matching of the cavity 15 on the side edges of the regular hexagonal acoustic array panels 1 and the upright posts 21.3 on the top of the telescopic support rod 21, a camera for acoustic imaging can be selected to be installed in the complete central circular hole sleeves 12 spliced by 1/3 central circular hole sleeves 12.2 on three vertex angles at which the array are connected with each other, and the collection of acoustic signals can be completed by combining with a microphone acoustic transmitter. This three concatenation regular hexagon sound array device uses a circular shape array support base, and the center of sound array and the focus of base are on same straight line when sound array is whole to be contracted, can keep the stability of array when the bracing piece is flexible, make the portability of design obtain further optimization, and sound array base is arranged in subaerially when sound array expandes, can be at on-the-spot direct mount microphone during the collection, very big improvement efficiency.
Example 5: a splicing regular hexagon acoustic array device comprises a regular hexagon acoustic array panel and an array bracket; small regular hexagonal arrays are uniformly arranged on the regular hexagonal sound array panel, and a microphone positioning point is arranged at each small regular hexagonal array connecting point; the side length of the regular hexagon acoustic array panel can be set to 80cm, the frame of the array is removed, and 6 small regular hexagon arrays with the side length of 10cm can be uniformly distributed on the side edge of each array.
To sum up, the utility model relates to a can splice regular hexagon sound array device, the device is convenient for self-defining the space geometry form of microphone array, in different experimental scenes, the space geometry form requirement to the microphone array is different; when a unidirectional sound signal is received, for example white noise is detected in a laboratory, and the position where a person speaks is measured in a quiet place, the interference of other sound sources is avoided. The dynamic range of the single microphone array can meet the requirement; when a plurality of sound signals are received, sound pressure level differences exist among different sound sources, if the dynamic range of the microphone array is too small, the sound source with the larger sound pressure level can only be positioned, for example, track noise is measured, noise interference of other different positions is caused when a train passes through, or the sound emitted by a plurality of sound devices is detected at different positions, a single microphone array cannot meet the requirement, the linear array can be formed by parallel splicing among the arrays, the linear array is uniformly covered, the diffusivity is high, the dynamic range can meet the requirement of detecting the sound in a large range, and the acquisition of target sound signals is completed; when target sound source frequency is lower, need the measurement of higher accuracy, for example the trouble of some devices in measuring the subway carriage, because the excellent syllable-dividing in subway carriage, hardly accept the target sound signal, and it is more to disturb the sound source, perhaps the room of eliminating the noise tests the sound source, through a plurality of array concatenations this moment, guarantee the camera and put at combination array central point, very big improvement the dynamic range of microphone array, the increase of sensor quantity makes the low frequency performance have very obvious promotion, more accurate realization is to the location of sound source, the completion is to the collection of target sound signal.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, but these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A splicing regular hexagon sound array device is characterized by comprising a microphone, a regular hexagon sound array panel (1) and an array support (2); small regular hexagonal hollow structures are uniformly arranged on the regular hexagonal sound array panel (1), and microphone mounting holes (11) are uniformly arranged around the hollow structures; the side edge of the regular hexagonal sound array panel (1) is provided with a bulge (13) and a groove (14) for splicing the panels; the microphone is arranged on the regular hexagon sound array panel (1), and the regular hexagon sound array panel (1) is arranged on the array bracket (2).
2. The device as claimed in claim 1, wherein the microphones are installed in the microphone installation holes (11) of the regular hexagonal sound array panel (1) through the microphone hole sleeve (3), the microphone hole sleeve (3) comprises a 1/2 inch microphone fixing base (31) and a 1/4 inch microphone fixing base (32), and the 1/4 inch microphone fixing base (32) is nested inside the 1/2 inch microphone fixing base (31).
3. The spliced regular hexagonal acoustic array device according to claim 1, wherein a central circular hole sleeve (12) for fixing a camera is arranged at the central position of the regular hexagonal acoustic array panel (1).
4. The spliced regular hexagon acoustic array device according to claim 1, wherein a 1/2 central circular hole sleeve (12.1) is arranged in the middle of the side edge of the regular hexagon acoustic array panel (1), and a 1/3 central circular hole sleeve (12.2) is arranged at the top angle.
5. The splicing regular hexagon acoustic array device according to claim 1, wherein the regular hexagon acoustic array panel (1) is further provided with a cavity (15) on the side for installing the panel and the array support (2).
6. The device for splicing the regular hexagon sound array according to claim 1, wherein the array support (2) comprises a telescopic support rod (21) and an array support base (22); the array bracket (2) is made of aluminum alloy; the telescopic supporting rod (21) comprises three sections of square aluminum alloy nested supporting rods, and the array support base (22) comprises a circular base; regular hexagon sound array panel (1) install on scalable bracing piece (21), scalable bracing piece (21) are installed on array support base (22).
7. A spliced regular hexagon acoustic array device according to claim 6, wherein the joint of the telescopic support rod (21) and the regular hexagon acoustic array panel (1) is provided with a hole groove (21.1) and a bolt (21.2) which are matched with the protrusion (13) and the groove (14) on the side edge of the regular hexagon acoustic array panel (1), and is further provided with a column (21.3) which is matched with the cavity (15) on the side edge of the hexagon acoustic array panel (1).
8. A splicing regular hexagon acoustic array device according to claim 6, wherein when the acoustic array device is a single regular hexagon acoustic array, one side of the regular hexagon acoustic array panel (1) is connected with the telescopic supporting rod (21), and the end of the telescopic supporting rod (21) connected with the regular hexagon acoustic array panel (1) is a parallel contact surface.
9. A splicing regular hexagon acoustic array device according to claim 6, wherein when the acoustic array device is spliced by two or more regular hexagon acoustic arrays, the end of the telescopic supporting rod (21) connected with the spliced array panel is a V-shaped contact surface.
10. A spliceable hexagonal acoustic array apparatus according to claim 1, wherein the hexagonal acoustic array panel (1) is made of metal foam aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222885414.XU CN218473311U (en) | 2022-10-31 | 2022-10-31 | Can splice regular hexagon sound array device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222885414.XU CN218473311U (en) | 2022-10-31 | 2022-10-31 | Can splice regular hexagon sound array device |
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| Publication Number | Publication Date |
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| CN218473311U true CN218473311U (en) | 2023-02-10 |
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| CN202222885414.XU Active CN218473311U (en) | 2022-10-31 | 2022-10-31 | Can splice regular hexagon sound array device |
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2022
- 2022-10-31 CN CN202222885414.XU patent/CN218473311U/en active Active
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