Wind noise resistant railway pickup array module

Abstract

The utility model relates to railway communication and monitoring technical field, concretely discloses a kind of wind-noise-resistant railway pickup array module;The module includes mounting bracket, pickup, fairing and auxiliary sound absorption device.Fairing is through the cambered surface fairing surface of specific curvature and the structure of gradually expanding leeward surface, dredge airflow and reduce turbulence;Internal reinforcing rib enhances structural strength, ensure that the flow is stable.Pickup is articulated with horizontal support articulation, angle can be flexibly adjusted;First, second supporting leg can be lifted, cooperate with guide rail and guide rod to realize installation position adjustment, improve environmental adaptability.Auxiliary sound absorption device's sound absorption block is connected by damping unit, and its sound absorption material and sound absorption cover can absorb residual wind noise, reduce support vibration interference.Each structure synergistic effect, effectively reduce wind noise influence, significantly improve the pickup performance of railway pickup array in strong wind environment.

Description

Technical Field

[0001] This utility model relates to the field of railway communication and monitoring technology, and in particular to a railway microphone array module with wind noise resistance. Background Technology

[0002] In the complex environment of railway operation, railway microphone arrays, as key equipment for ensuring safe and efficient railway operation and management, bear the important responsibility of real-time sound information collection. They can sensitively capture abnormal sounds from train operation, subtle vibrations of track components, and other noises, providing first-hand data for railway fault diagnosis and safety monitoring. However, strong winds have become a major obstacle to their performance. Along open railway lines, strong winds often howl, easily causing turbulence and disturbances when the airflow comes into contact with the microphone array. These unstable airflows generate strong wind noise around the microphone, effectively masking the originally clear sound signal with a thick "noise veil," severely obscuring the target sound collected by the microphone. For example, in some mountainous railway sections, strong winds are frequent, and wind noise interference makes it difficult for the microphone to accurately identify abnormal friction sounds from train components, greatly increasing safety hazards.

[0003] Taking patent (CN115988369A, a sound pickup device for reducing wind noise) as an example, this patent uses a spherical shell and an arc-shaped plate to form an air-guiding channel structure, hoping to use the Coanda effect to guide airflow and reduce its impact on the microphone. Theoretically, after the airflow enters the air-guiding channel, it will flow along the inner wall of the arc-shaped plate, thereby reducing interference to the microphone and ensuring audio quality. However, in the actual railway environment, this design has obvious limitations. The airflow conditions on railways are far more complex than ideal. Strong winds carry sand, dust, and debris, and the air-guiding channel is easily blocked, resulting in a significant reduction in its guiding effect. Moreover, this structure has limited ability to suppress low-frequency wind noise. Under strong wind conditions, low-frequency wind noise will still seriously interfere with the normal operation of the microphone.

[0004] In summary, existing technologies are unable to effectively and stably reduce wind noise when dealing with strong wind interference in railway microphone arrays, making it difficult to meet the increasingly stringent requirements for clarity and accuracy in railway transportation. Therefore, the development of a novel wind-noise resistant railway microphone array module is urgently needed. Utility Model Content

[0005] In view of this, the present invention provides a wind-noise resistant railway microphone array module to solve the technical problem in the prior art where railway microphone arrays in strong wind environments suffer from excessive wind noise due to airflow interference, which seriously affects the clarity and accuracy of sound pickup.

[0006] This utility model provides a wind-noise resistant railway microphone array module, comprising: a mounting frame including a horizontal support; a microphone including a microphone body and microphone units arranged in a row on the microphone body, with a preset interval between each pair of microphone units; and a wind deflector disposed on the horizontal support and covering the microphone through a cavity on the leeward side of the wind deflector; wherein the wind deflector includes a first mounting plate and a second mounting plate, and a wind deflector plate disposed between the first mounting plate and the second mounting plate; the wind deflector plate has an arc-shaped guiding surface, and the curvature of the guiding surface and the leeward side are both set according to a preset curvature.

[0007] Preferably, it further includes an auxiliary sound-absorbing device; the auxiliary sound-absorbing device includes a first sound-absorbing block and a second sound-absorbing block; the first sound-absorbing block and the second sound-absorbing block are mounted on the transverse support and respectively disposed on both sides of the pickup; the first sound-absorbing block and the second sound-absorbing block each include sound-absorbing covers disposed on both sides of the mounting frame and sound-absorbing material disposed inside the mounting frame.

[0008] Preferably, the microphone is hinged to the transverse support via a hinge joint; the installation angle of the microphone can be adjusted via the hinge joint.

[0009] Preferably, the mounting bracket further includes at least a first support leg and a second support leg; the transverse bracket is disposed on the first support leg and the second support leg; and the first support leg and the second support leg are height-adjustable.

[0010] Preferably, the airflow guide surface of the airflow guide adopts an arc structure and the radius of curvature of the arc structure is 2 to 5 times the diameter of the pickup unit.

[0011] Preferably, the leeward side of the fairing adopts a gradually expanding curved surface structure; the radius of curvature of the gradually expanding curved surface structure gradually increases from the end closer to the microphone to the end farther away from the microphone.

[0012] Preferably, the first sound-absorbing block and the second sound-absorbing block are connected to the transverse support through a vibration damping unit; the first sound-absorbing block and the second sound-absorbing block are respectively provided by at least three sets of vibration damping units.

[0013] Preferably, the transverse support is further provided with a first guide rail and a second guide rail, and a first guide rod disposed between the first guide rail and the second guide rail; a second guide rod is further provided between the first support leg and the second support leg.

[0014] Preferably, the microphone body is connected to the first guide rail and the second guide rail via a slider; the microphone body is connected to the second guide rod via a moving block, and the installation position on the transverse support is adjusted by tightening or loosening the moving block.

[0015] Preferably, the flow guide surface of the flow guide is provided with reinforcing ribs arranged at intervals inside.

[0016] The wind noise-resistant railway microphone array module provided by this utility model has the following beneficial effects:

[0017] In this invention, the wind-noise resistant railway microphone array module effectively solves the problem of wind noise interference in strong wind and airflow environments through a unique structural design. The airflow guide surface of the fairing adopts a specific arc structure, which, in conjunction with the gradually expanding curved surface structure of the leeward side, effectively guides the airflow, allowing it to flow smoothly over the microphone area, reducing turbulence and minimizing wind noise at its source. Reinforcing ribs inside the fairing enhance its overall structural strength, making it less prone to deformation under strong winds and ensuring the stability of the airflow guidance effect. The microphone is hinged to the transverse support via a hinge joint, allowing for flexible adjustment of the installation angle and orientation according to wind direction, preventing significant interference from airflow directly hitting the microphone. These structural designs work together, synergistically improving the microphone array's pickup performance in strong wind environments through airflow guidance, angle adjustment, position adjustment, and residual noise absorption. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 This is a schematic diagram of a wind-noise resistant railway microphone array module;

[0020] Figure 2 This is a schematic diagram of the fairing structure;

[0021] Figure 3 This is a schematic diagram of the fairing from another angle;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the first sound-absorbing block;

[0023] Figure 5 This is a structural diagram of the first supporting leg;

[0024] Parts and component numbers in the diagram:

[0025] 110-Horizontal support, 120-First support leg, 121-Support part, 122-Extension part, 123-Fastener, 130-Second support leg, 140-Hinge part, 151-First guide rail, 152-Second guide rail, 153-First guide rod, 154-Second guide rod;

[0026] 210 - pickup body, 220 - pickup unit;

[0027] 300-Diffuser, 311-First mounting plate, 312-Second mounting plate, 313-Diffuser plate, 321-Diffuser surface, 322-Leaf side, 323-Cavity, 324-Reinforcing rib;

[0028] 410-First sound-absorbing block, 411-Mounting frame, 412-Sound-absorbing material, 413-Sound-absorbing cover, 420-Second sound-absorbing block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0030] Example 1

[0031] Please see Figure 1This utility model provides a wind-noise resistant railway microphone array module. In the complex environment of railway operation, the railway microphone array, as a key device to ensure the safe operation and efficient management of railways, bears the important responsibility of real-time sound information collection. It can keenly capture abnormal sounds of train operation, subtle vibrations of track components, etc., providing first-hand data for railway fault diagnosis and safety monitoring. However, noise and vibration generated by strong winds and strong convection become obstacles to its performance.

[0032] Along open railway lines, strong winds frequently howl, easily causing turbulence and disturbances when the airflow comes into contact with the microphone array. These unstable airflows generate significant wind noise around the microphones, severely masking the target sound they capture. For example, in some mountainous railway sections, where strong winds are frequent, wind noise interference makes it difficult for the microphones to accurately identify abnormal friction sounds from train components, greatly increasing safety hazards.

[0033] Therefore, this embodiment provides a wind-noise resistant railway microphone array device, specifically involving a wind-noise resistant railway microphone array module.

[0034] Please see Figure 1 , Figure 2 and Figure 3 The wind-noise-resistant railway microphone array device includes a mounting frame and a fairing 300 and microphones mounted on the mounting frame. The mounting frame includes a horizontal support 110. The microphones include a microphone body 210 and microphone units 220 arranged in a row on the microphone body 210, with a preset interval between each pair of microphone units 220. The fairing 300 is mounted on the horizontal support 110 and covers the microphones through a cavity 323 on the leeward side 322 of the fairing 300. The fairing 300 includes a first mounting plate 311 and a second mounting plate 312, and a guide plate 313 disposed between the first mounting plate 311 and the second mounting plate 312. The guide surface 321 of the guide plate 313 is arc-shaped, and the curvature of the guide surface 321 and the leeward side 322 are both set according to a preset curvature.

[0035] When strong winds flow along the outer surface of the fairing 300, the airflow passes through the guide surface 321. The curved guide plate 313 effectively decomposes and guides the airflow, reducing turbulence. Through this structure, wind noise is significantly reduced on the leeward side 322 of the fairing 300, thus minimizing interference with the microphone. Simultaneously, the cavity 323 of the fairing 300 provides a relatively stable acoustic environment for the microphone, enabling it to capture target sound signals more clearly.

[0036] To further enhance the wind noise reduction effect, the angle between the first mounting plate 311 and the second mounting plate 312 has been precisely calculated to ensure that the fairing 300 can maintain efficient airflow guidance under different wind speed conditions.

[0037] When airflow passes through the 300° air deflector, if the curvature of the curved surface changes abruptly, such as at an acute angle or a right angle, it will cause the airflow to separate from the surface prematurely, forming turbulence and eddies, which will exacerbate wind noise, especially high-frequency noise.

[0038] Using a larger radius of curvature, such as an elliptical arc or a parabolic arc, can make the airflow flow smoothly along the curved surface, delay the separation point, and reduce the turbulent region.

[0039] Further, please see Figure 2 and Figure 3 The airflow guide surface 321 of the airflow guide shroud 300 adopts an arc structure and the radius of curvature of the arc structure is 2 to 5 times the diameter of the pickup unit 220.

[0040] Furthermore, the leeward side 322 of the fairing 300 adopts a gradually expanding curved surface structure; the radius of curvature of the gradually expanding curved surface structure gradually increases from the end closer to the microphone to the end farther away from the microphone.

[0041] In this embodiment, the windward surface of the fairing 300 adopts a large-curvature arc, such as a quarter-elliptical arc, with a radius of curvature typically 2-5 times the diameter of the pickup unit 220, allowing the airflow to smoothly adhere to the surface. The leeward surface 322 adopts a gradually expanding curved surface with a gradually increasing radius of curvature, preventing the airflow from suddenly detaching at the tail and reducing wake vortex noise. The angle between the axis of the fairing 300 and the incoming flow direction is set to less than 15° to avoid the airflow directly impacting the pickup area. The windward surface of the fairing 300 is designed as a forward-tilted arc surface with an inclination angle of 5°-10°, guiding the airflow upward or sideways to bypass the pickup mounting area.

[0042] To avoid sharp edges, steps, or depressions on the surface of the fairing 300, an integral molding process, such as injection molding or forging, is used to ensure a smooth and continuous curved surface, reducing frictional noise between airflow and the surface. Tangential transitions are used at curvature changes to eliminate "hot spots" generated by local eddies.

[0043] The 300° arc design of the fairing aims to "delay separation, control turbulence, and reduce impact." Through the synergistic effect of large curvature transition, smooth curved surface, angle tilt, and multi-segment structure, it optimizes the entire process of airflow from attachment to separation, ultimately reducing wind noise interference to the microphone.

[0044] In addition, the preset spacing between the pickup units 220 has been optimized to avoid introducing additional noise due to airflow resonance or sound wave superposition.

[0045] The spacing between the pickup units 220 is designed according to the wavelength of the sound wave, typically set to half the wavelength λ corresponding to the target frequency (λ / 2). This design is based on the working principle of the Direction of Arrival (DOA) algorithm and aims to achieve high-precision sound source localization and signal enhancement.

[0046] The DOA algorithm determines the direction of a sound source by analyzing the time difference (TDOA) or phase difference of sound waves arriving at different microphones. When a sound wave propagates from a certain direction to the microphone array, the arrival time or phase differs due to the different positions of the microphones. The DOA algorithm uses this difference to calculate the azimuth angle of the sound source. According to the principle of interference, when the distance between two units is λ / 2, the phase difference of the signals generated by the sound wave from a specific direction at the two microphones is exactly π. At this time, if a suitable signal processing algorithm is used, the sound wave signals from the target direction can be superimposed in phase, thereby achieving signal enhancement; while for sound waves from other directions, since the phase difference does not meet the in-phase condition, the signals are mutually weakened, which suppresses noise. This design gives the microphone array strong directionality and can effectively focus on the target sound source.

[0047] In practical railway acoustic monitoring scenarios, the sound signals generated by train operation contain multiple frequency components. Therefore, when determining the microphone spacing, the main frequency range of the monitoring target must be comprehensively considered. For example, if the main monitored wheel-rail friction sound frequency range is typically 100Hz-5kHz, the spacing needs to be designed based on the wavelength corresponding to the center frequency within this frequency band. Furthermore, to adapt to complex field environments, variable-spacing arrays or combinations of multiple arrays with different spacings can be used.

[0048] In this embodiment, by setting the microphone spacing to λ / 2 and combining it with the DOA algorithm, the signal-to-noise ratio and positioning accuracy of the railway acoustic monitoring system can be significantly improved. Compared with a single microphone or an array with unreasonable spacing, this design can effectively suppress environmental noise and interference signals, accurately capture the sound characteristics of key parts such as train wheels and rails and bearings, and provide reliable data support for train condition monitoring and fault early warning.

[0049] Furthermore, the array shape of the pickup unit 220 can be set to a rectangle, a circle, or other suitable shape.

[0050] Furthermore, please see [link / reference] Figure 1 and Figure 4The wind noise-resistant railway microphone array device in this embodiment further includes an auxiliary sound-absorbing device; the auxiliary sound-absorbing device includes a first sound-absorbing block 410 and a second sound-absorbing block 420; the first sound-absorbing block 410 and the second sound-absorbing block 420 are mounted on the transverse support 110 and respectively disposed on both sides of the microphone; the first sound-absorbing block 410 and the second sound-absorbing block 420 each include a sound-absorbing cover 413 disposed on both sides of the mounting frame 411 and a sound-absorbing material 412 disposed inside the mounting frame 411.

[0051] When airflow or wind noise passes by, the first sound-absorbing block 410 and the second sound-absorbing block 420 can effectively absorb stray sound waves in the surrounding environment, especially wind-induced noise. The sound-absorbing cover 413 has a curved horn-shaped design, which can guide airflow smoothly and reduce eddy current generation, thereby further reducing wind noise interference to the microphone. The sound-absorbing material 412 filled inside the mounting frame 411 has good sound wave absorption performance, especially in the mid-to-high frequency range, which can significantly weaken the interference signals of non-target sound sources.

[0052] Furthermore, by adjusting the position and angle of the sound-absorbing blocks, noise from specific directions can be suppressed, enhancing the anti-interference capability of the microphone array. This design significantly improves the stability and reliability of the system while ensuring the quality of the target sound acquisition.

[0053] Further, please see Figure 1 The microphone is hinged to the transverse support 110 via a hinge 140; the installation angle of the microphone can be adjusted via the hinge 140.

[0054] This configuration allows for flexible adjustment of the microphone angle to suit different sound source directions and acquisition needs, adapting to various usage environments. The hinge 140 design not only enhances the device's versatility but also facilitates quick angle calibration during installation and maintenance. Furthermore, the hinge 140 is made of durable materials, ensuring stable performance over long-term use and preventing angle shifts caused by frequent adjustments or external vibrations, thereby further ensuring the microphone's accuracy and reliability.

[0055] Further, please see Figure 5 The mounting bracket further includes at least a first support leg 120 and a second support leg 130; the transverse bracket 110 is disposed on the first support leg 120 and the second support leg 130; and the first support leg 120 and the second support leg 130 are height-adjustable.

[0056] This allows for flexible adaptation to different installation environments and terrain conditions by adjusting the height of the first support leg 120 and the second support leg 130. Whether on flat ground or in a sloping area, adjusting the height of the support legs ensures the horizontal support 110 remains level, thereby improving the operational stability and acquisition accuracy of the microphone array. Furthermore, the height-adjustable design facilitates the retraction of the support legs during transportation and storage, reducing overall size and improving portability. The support legs are made of high-strength materials, capable of withstanding significant weight and external impacts, while also possessing excellent corrosion resistance, making them suitable for long-term use in complex outdoor environments. This design not only enhances the practicality and durability of the device but also provides more reliable hardware support for noise monitoring along railway lines.

[0057] The first sound-absorbing block 410 and the second sound-absorbing block 420 are connected to the transverse support 110 through a vibration damping unit; the first sound-absorbing block 410 and the second sound-absorbing block 420 are respectively set by at least three sets of vibration damping units.

[0058] In this embodiment, the distribution of multiple vibration damping units effectively reduces the impact of external vibrations on the sound-absorbing blocks, thereby improving the wind noise resistance of the microphone array. Each vibration damping unit is made of highly elastic material, capable of absorbing and dispersing vibration energy in different directions, ensuring the stability of the sound-absorbing blocks in complex environments. Furthermore, this design reduces noise interference caused by high-speed train operation or changes in external wind force, making the sound signals collected by the microphone clearer and more accurate. Simultaneously, the configuration of three vibration damping units provides additional support for the overall structure of the device, further enhancing its durability and reliability.

[0059] Furthermore, the transverse support 110 is also provided with a first guide rail 151 and a second guide rail 152, as well as a first guide rod 153 disposed between the first guide rail 151 and the second guide rail 152; a second guide rod 154 is also provided between the first support leg 120 and the second support leg 130.

[0060] The pickup body 210 is connected to the first guide rail 151 and the second guide rail 152 via a slider; the pickup body 210 is connected to the second guide rod 154 via a moving block, and the installation position on the horizontal bracket 110 is adjusted by tightening or loosening the moving block.

[0061] In this embodiment, the position of the pickup body 210 can be flexibly adjusted according to actual needs through the designed pickup moving structure, thereby optimizing the pickup range and angle. Simultaneously, the cooperative design of the guide rail and guide rod enhances the stability and guiding accuracy of the structure, preventing the pickup from shifting due to external vibration or wind interference. Furthermore, the combined use of the slider and moving block makes the installation and adjustment process more convenient, reducing maintenance time and operational difficulty, further improving the practicality and adaptability of the equipment. This design also maintains high reliability and consistency in complex environments, ensuring that the pickup effect is always at its best.

[0062] When adjustments are needed, first fix the transverse support 110 in a suitable position to ensure it matches the environment along the railway line. Next, use a slider to initially mount the pickup body 210 onto the first guide rail 151 and the second guide rail 152, and connect it to the second guide rod 154 using a moving block. Adjust the tightness of the slider and the moving block according to actual needs to precisely control the position of the pickup body 210 on the transverse support 110.

[0063] Further, please see Figure 1 The air deflector 300 has reinforcing ribs 324 arranged at intervals on its air-guiding surface 321. During the use of the air deflector 313, it will be continuously subjected to wind impact. To ensure the structural stability of the air deflector 300, the reinforcing ribs 324 effectively improve its wind pressure resistance.

[0064] These reinforcing ribs 324 are evenly distributed on the inner side of the airflow surface 321, which not only enhances the overall rigidity of the fairing 300, but also prevents deformation problems caused by long-term use. In addition, the arrangement of the reinforcing ribs 324 can also optimize the airflow characteristics inside the fairing 300, further reduce the interference of turbulence on the sound pickup effect, and thus improve the microphone's performance in complex environments.

[0065] In this embodiment, the unique structural design of this wind-noise-resistant railway microphone array module effectively solves the problem of wind noise interference in strong wind environments. The airflow guiding surface 321 of the fairing 300 adopts a curved surface structure with a specific curvature, which, in conjunction with the gradually expanding curved surface structure of the leeward surface 322, can effectively guide the airflow, allowing it to flow smoothly over the microphone area, reducing turbulence and lowering wind noise at its source. The reinforcing ribs 324 provided inside the fairing 300 enhance the overall structural strength of the fairing 300, making it less prone to deformation under strong winds and ensuring the stability of the airflow guiding effect.

[0066] The microphone is hinged to the transverse support 110 via the hinge 140, allowing for flexible adjustment of the installation angle. This enables the microphone to be oriented according to wind direction, preventing significant interference from airflow. The liftable design of the first support leg 120 and the second support leg 130, along with the guide rails 151 and 152 and guide rods 153 and 154 on the transverse support 110, allows the microphone's installation position to be adjusted according to actual needs, improving the microphone array's adaptability to different railway environments.

[0067] The first sound-absorbing block 410 and the second sound-absorbing block 420 in the auxiliary sound-absorbing device are mounted on the transverse support 110. The sound-absorbing material 412 inside and the sound-absorbing covers 413 on both sides can absorb residual wind noise, further improving the noise reduction effect. The sound-absorbing blocks are connected to the transverse support 110 through a vibration damping unit, which can effectively reduce the impact of support vibration on the microphone and ensure the clarity and accuracy of the sound pickup. These structural designs work together to significantly improve the sound pickup performance of the railway microphone array in strong wind environments by coordinating multiple aspects such as airflow guidance, angle adjustment, position adjustment, and residual noise absorption.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wind-noise resistant railway microphone array module, characterized in that, include: Mounting bracket, including horizontal support (110); The microphone includes a pickup body (210) and pickup units (220) arranged in a row on the pickup body (210), with a preset interval between each pair of pickup units (220); A fairing (300) is mounted on the transverse support (110) and covers the microphone through a cavity (323) on the leeward side (322) of the fairing (300); The air deflector (300) includes a first mounting plate (311) and a second mounting plate (312), and an air deflector (313) disposed between the first mounting plate (311) and the second mounting plate (312); the air deflector surface (321) of the air deflector (313) is arc-shaped, and the curvature of the air deflector surface (321) and the leeward surface (322) are both set according to a preset curvature.

2. The anti-wind noise railway microphone array module according to claim 1, characterized in that, It also includes an auxiliary sound-absorbing device; the auxiliary sound-absorbing device includes a first sound-absorbing block (410) and a second sound-absorbing block (420); The first sound-absorbing block (410) and the second sound-absorbing block (420) are mounted on the transverse support (110) and respectively disposed on both sides of the pickup; The first sound-absorbing block (410) and the second sound-absorbing block (420) both include sound-absorbing covers (413) disposed on both sides of the mounting frame (411) and sound-absorbing material (412) disposed inside the mounting frame (411).

3. The anti-wind noise railway microphone array module according to claim 1, characterized in that, The microphone is hinged to the transverse support (110) via a hinge (140); The pickup can be adjusted at the mounting angle via the hinge (140).

4. The wind-noise resistant railway microphone array module according to claim 1, characterized in that, The mounting bracket also includes at least a first support leg (120) and a second support leg (130); The transverse support (110) is disposed on the first support leg (120) and the second support leg (130); Furthermore, the first support leg (120) and the second support leg (130) are designed to be raised and lowered.

5. A wind-noise resistant railway microphone array module according to claim 1, characterized in that, The air guide surface (321) of the air guide (300) adopts an arc structure and the radius of curvature of the arc structure is 2 to 5 times the diameter of the pickup unit (220).

6. The wind-noise resistant railway microphone array module according to claim 1, characterized in that, The leeward side (322) of the fairing (300) adopts a gradually expanding curved surface structure; The radius of curvature of the gradually expanding curved surface structure gradually increases from the end closer to the microphone to the end farther away from the microphone.

7. A wind-noise resistant railway microphone array module according to claim 2, characterized in that, The first sound-absorbing block (410) and the second sound-absorbing block (420) are connected to the transverse support (110) through a vibration damping unit; the first sound-absorbing block (410) and the second sound-absorbing block (420) are respectively set by at least three sets of vibration damping units.

8. A wind-noise resistant railway microphone array module according to claim 4, characterized in that, The transverse support (110) is also provided with a first guide rail (151) and a second guide rail (152) and a first guide rod (153) disposed between the first guide rail (151) and the second guide rail (152); A second guide rod (154) is also provided between the first support leg (120) and the second support leg (130).

9. A wind-noise resistant railway microphone array module according to claim 8, characterized in that, The pickup body (210) is connected to the first guide rail (151) and the second guide rail (152) via a slider; The pickup body (210) is connected to the second guide rod (154) via a moving block, and the installation position on the transverse bracket (110) is adjusted by loosening or tightening the moving block.

10. A wind-noise resistant railway microphone array module according to claim 1, characterized in that, The flow guide surface (321) of the flow guide (300) is provided with reinforcing ribs (324) arranged at intervals inside.

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