Audio meteorological sounding device

Abstract

The utility model provides an audio meteorological sounding device, comprising an inner housing which forms a closed chamber; the sound sensor is arranged in the inner shell; the audio receiving assembly comprises a Helmholtz resonant cavity, the Helmholtz resonant cavity is a rigid cavity which is approximately spherical, one end of the Helmholtz resonant cavity is provided with a through-hole-shaped sound playing port used for transmitting audio to the sound sensor, and the other end of the Helmholtz resonant cavity is provided with a receiving end used for receiving vibration; the Helmholtz resonant cavity is embedded in the inner shell along the direction that the sound playing port points to the sound sensor, the receiving end is exposed out of the outer surface of the shell, the receiving plate is an arc-shaped panel protruding outwards and is arranged on the outer side of the receiving end, the spring surrounds the Helmholtz resonant cavity and is arranged in the inner shell, and the supporting receiving plate is installed on the outer side of the receiving end. According to the utility model, particle morphology, spatial distribution density and phase state conditions of various particulate matters can be comprehensively judged, an observation means is added for meteorological sounding business, acoustic audio verification is provided for identification of the existing sounding troposphere, humidity characteristic layer and the like, and the whole-process audio monitoring of the existing sounding is realized.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of meteorological sounding, and more particularly, to an audio meteorological sounding device. Background Art

[0002] Against the backdrop of global warming, extreme weather and climate events in China have increased in frequency and intensity. Meteorological observations are the foundation for building the first line of defense against meteorological disasters, and there is an urgent need to improve the precision monitoring capabilities for disastrous weather. Additionally, in the national strategies for achieving ecological civilization and the "dual carbon" goals, meteorological work plays a fundamental scientific and technological support role. Enhancing the observational capabilities of basic climate variables and multi-layer spheres of the climate system can provide observational data support for addressing climate change.

[0003] Existing meteorological sounding devices currently only have temperature, humidity, pressure, and position sensors, which collect and analyze data on the vertical profile of the atmosphere to form meteorological observation products such as the atmospheric troposphere, humidity characteristic layer, wind characteristic layer, and temperature characteristic layer. However, the above-mentioned meteorological observation products are all generated by calculating temperature, humidity, pressure, and position information, with limited meteorological elements available for calculation and no direct verification means. Summary of the Utility Model

[0004] To solve the above technical problems, the present utility model provides an audio meteorological sounding device that can comprehensively determine the particle morphology, spatial distribution density, and phase state of various particulate matters, adding a new observation method for meteorological sounding operations. At the same time, it provides acoustic audio verification for the existing sounding troposphere, humidity characteristic layer, etc., realizing full-process audio monitoring of existing sounding.

[0005] The present utility model provides an audio meteorological sounding device, including an inner housing that forms a closed chamber; a sound sensor disposed within the inner housing; and an audio receiving assembly. The audio receiving assembly includes a Helmholtz resonance cavity, which is a rigid cavity with a shape close to a sphere, having a through-hole-shaped sound-emitting port at one end for transmitting audio to the sound sensor, and a receiving end for receiving vibrations at the other end. The Helmholtz resonance cavity is embedded in the inner housing along the direction of the sound-emitting port pointing to the sound sensor, with the receiving end exposed on the outer surface of the housing. A receiving plate, which is an arc-shaped panel protruding outward, is disposed outside the receiving end, and a spring is disposed around the Helmholtz resonance cavity within the inner housing to support the installation of the receiving plate outside the receiving end.

[0006] Further, an outer housing forms a closed chamber, covering and supporting the inner housing and other components disposed on the inner housing.

[0007] Further, the outer housing includes a cylindrical body in the middle and arc surfaces protruding outward at both ends of the cylindrical body, with a smooth transition at the connection between the cylindrical body and the arc surfaces.

[0008] Further, a receiving surface with a specified area is formed outside the receiving end, and various types of audio vibration information are received by using the receiving surface.

[0009] Further, the distance range between the receiving plate and the receiving surface is 1 to 20 mm.

[0010] Further, a plurality of audio receiving components are provided for the sound sensor.

[0011] Further, the resonance frequency of the Helmholtz resonance cavity is 20 to 20 KHz.

[0012] Further, the area of the receiving surface is 25 to 300 cm 2 .

[0013] Further, the through-hole diameter of the sound outlet is 2 to 8 mm.

[0014] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In combination with the accompanying drawings and with reference to the following detailed description, the above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent. In the drawings, the same or similar reference numerals represent the same or similar elements, where:

[0016] Figure 1 shows a schematic structural diagram of an audio meteorological radiosonde provided by an embodiment of the present utility model;

[0017] Among them, Figure 1 the corresponding relationship between the reference numerals in and the component names is as follows:

[0018] 1, outer housing; 2, inner housing; 3, sound sensor; 4, audio receiving component; 40, Helmholtz resonance cavity; 400, sound outlet; 401, receiving end; 402, receiving surface; 41, receiving plate; 5, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0020] In addition, the term "and / or" in this text is merely a relational description of associated objects, indicating three possible relationships. For example, A and / or B can represent three situations: A exists alone, both A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates an "or" relationship between the associated objects before and after it.

[0021] The following will refer to Figure 1 to describe an audio meteorological sounding device provided by an embodiment of the present utility model.

[0022] The present disclosure provides an audio meteorological sounding device, including an inner housing 2, a sound sensor 3 disposed inside the inner housing 2, and an audio receiving assembly 4. Among them, the audio receiving assembly 4 includes a Helmholtz resonance cavity 40, a receiving plate 41, and a spring 5. The Helmholtz resonance cavity 40 is a rigid cavity with a shape close to a sphere, having a through-hole-shaped sound outlet 400 at one end for transmitting audio to the sound sensor 3, and a receiving end 401 for receiving vibrations at the other end. The Helmholtz resonance cavity 40 is embedded in the inner housing 2 along the direction of the sound outlet 400 pointing to the sound sensor 3, and the receiving end 401 is exposed on the outer surface of the inner housing 2; the receiving plate 41 is an arc-shaped panel protruding outward, disposed outside the receiving end 401, and is supported outside the receiving end 401 by a spring 5 disposed around the Helmholtz resonance cavity 40. After various vibrations such as particle impacts, environmental audio, and wind noise information in the external environment reach the receiving plate 41, they are transmitted to the receiving end 401 and continue to be transmitted into the Helmholtz resonance cavity 40, and finally are captured by the sound sensor 3 via the sound outlet 400.

[0023] In this embodiment, outside the inner housing 2 and other components disposed on the inner housing 2, there is a closed outer housing 1, and the outer housing 1 covers the inner housing 2 and other components disposed on the inner housing 2. In this way, the outer housing 1 can not only protect other components inside it; but also enable particle collisions, environmental audio, and wind noise information in the atmospheric environment to first collide with or contact the outer housing 1, and be converted into vibrations of different frequencies on the outer housing 1 and continue to be transmitted into the outer housing 1.

[0024] Among them, the outer housing 1 includes a cylindrical body in the middle and arc surfaces protruding outward at both ends of the cylindrical body. The connection between the arc surface and the cylindrical body is smoothly transitioned, and finally a closed chamber is formed inside the outer housing 1. A support and fixing member is disposed at the cylindrical body of the outer housing 1 to fixedly support the inner housing 2 inside the outer housing 1. The arc surfaces at both ends of the outer housing 1 can receive various particle information from different directions in the atmospheric environment at multiple angles, increasing the comprehensiveness of meteorological monitoring and improving the monitoring accuracy.

[0025] In this embodiment, the radian of the receiving plate 41 is approximately equal to the radian of the arc surface of the outer housing 1. The receiving plate 41 covers at least one side of the inner housing 2, so that various vibrations at the outer housing 1 can be comprehensively transmitted to the receiving plate 41 and finally transmitted to the receiving end 401. Among them, the receiving plate 41 is supported on the inner housing 2 via a spring 5 arranged around the Helmholtz resonance cavity 40, so that when the sounding device is impacted or shaken at high altitude, the relative stability can still be maintained between the receiving plate 41 and the receiving end 401. Thus, various audio vibrations transmitted to the outer housing 1 can be received by the receiving plate 41, transmitted to the receiving end 401, and finally screened by the Helmholtz resonance cavity 40 and transmitted to the sound sensor 3.

[0026] In this embodiment, the Helmholtz resonance principle can be used to screen the vibrations transmitted to the outer wall of the Helmholtz resonance cavity 40. When the audio vibration frequency at the outer wall of the Helmholtz resonance cavity 40 is equal to or close to the natural resonance frequency in the cavity of the Helmholtz resonance cavity 40, a resonance phenomenon occurs in the cavity of the Helmholtz resonance cavity 40. The audio vibrations equal to or close to the natural resonance frequency of the Helmholtz resonance cavity 40 will reflect back and forth in the cavity of the Helmholtz resonance cavity 40, and the amplitude and intensity of the sound wave are greatly amplified to form resonance, converting the tiny vibrations at the outer wall of the cavity of the Helmholtz resonance cavity 40 into powerful sound waves in the cavity and transmitting them to the sound outlet 400. At this time, the air at the sound outlet 400 vibrates and continues to transmit the amplified sound wave outward until the powerful sound wave impacts the surface of the sound sensor 3 and is captured by the sound sensor 3. In actual vibrations, in addition to the air column inside the sound outlet 400 vibrating, some air near the outside of the sound outlet 400 also vibrates simultaneously, so that the powerful sound wave can be transmitted to the surface of the sound sensor 3.

[0027] Specifically, various particle impacts, ambient audio, wind noise information, etc. transmitted to the outer housing 1 are converted into vibrations of different frequencies at the outer housing 1 and transmitted to the receiving plate 41 through air as the medium. Then, the receiving plate 41 transmits various vibration information to the outer wall of the Helmholtz resonance cavity 40 exposed on the inner housing 2, screens it inside the Helmholtz resonance cavity 40, amplifies the vibrations equal to or close to the natural frequency of the Helmholtz resonance cavity 40, transmits them to the sound outlet 400, and finally is received by the sound sensor 3.

[0028] More specifically, the Helmholtz resonance cavity 40 is made of an elastic material. In this embodiment, it is preferably made of a carbon fiber honeycomb sandwich plate material. In some other embodiments, it can also be replaced with a thermoplastic resin made of propylene polymerization, stainless steel and other materials; the cavity volume is 10 - 25 cm 3 , preferably 15 - 20 cm 3; The resonance frequency is 20 - 20K Hz, and a wider range and more meaningful audio vibration data can be obtained at this natural resonance frequency.

[0029] In this embodiment, outside the receiving end 401 of the Helmholtz resonance cavity 40, there is a receiving surface 402 with a specified area formed. Among them, the shape of the receiving surface 402 is not limited, and here it is preferably a plane. The receiving surface 402 is used to receive various audio vibration information transmitted from the receiving plate 41. Among them, there is a fixed distance between the receiving plate 41 and the receiving surface 402, so that the distance range between the receiving plate 41 and the receiving surface 402 is maintained at 1 - 20mm, preferably 5 - 10mm.

[0030] In this embodiment, the area of the receiving surface 402 is 25 - 300mm 2 , preferably 100 - 200mm 2 ; The area of the receiving plate 41 is 1500 - 30000mm 2 , preferably 2500 - 10000mm 2 . The area of the receiving plate 41 is much larger than the area of the receiving surface 402, so that various vibration information at the outer housing 1 can be directly transmitted to the outer wall of the Helmholtz resonance cavity 40 through the receiving plate 41. Among them, most of it is received by the receiving surface 402, and a small part is received by other walls of the Helmholtz resonance cavity 40 exposed to the inner housing 2 except the receiving surface 402. Of course, in some other embodiments, the part of the Helmholtz resonance cavity 40 exposed to the inner housing 2 may only include the receiving surface 402; or after various vibration information at the outer housing 1 is received by the receiving plate 41, it bounces back and forth in the area between the receiving plate 41 and the inner housing 2 it covers, and finally is transmitted to the receiving surface 402.

[0031] In this embodiment, the material of the receiving surface 402 is an elastic material, which is the same as that of the Helmholtz resonance cavity 40, preferably a carbon fiber honeycomb sandwich plate material. In some other embodiments, it can also be replaced with a thermoplastic resin made of propylene polymerization, stainless steel and other materials; the receiving plate 41 is a metal material, preferably SUS304 material in this embodiment, and in some other embodiments, it can also be replaced with other stainless steel materials. The thickness of the receiving plate 41 is 0.2 - 0.5mm, preferably 0.3mm.

[0032] Specifically, the carbon fiber honeycomb sandwich panel used in this embodiment has thinner and higher-strength panels on the upper and lower parts, and a thicker and lighter honeycomb core in the middle. Adhesives are used to bond the upper and lower panels to the honeycomb core. In this way, both the receiving plate 41 and the receiving surface 402 have high strength, which improves the vibration conduction rate when various audio vibration information is transmitted between the receiving plate 41 and the receiving surface 402; moreover, the upper and lower panels of the receiving plate 41 and the receiving surface 402 are thinner, further improving the vibration conduction rate when various sound waves are transmitted between the receiving plate 41 and the receiving surface 402, enabling the sounding device to monitor the atmospheric environment more comprehensively.

[0033] In this embodiment, various particles in the atmospheric environment, such as impacts, environmental audio, and wind noise information, first impact the outer housing 1, are converted into vibrations of different frequencies at the outer housing 1, and use the air inside the outer housing 1 as a medium to transmit the vibrations to the receiving plate 41 first, and then from the receiving plate 41 to the receiving surface 402, and are transmitted to the Helmholtz resonance cavity 40 through the receiving end 401. After being screened by the Helmholtz resonance principle in the cavity of the Helmholtz resonance cavity 40, the minute vibrations equal to or close to the natural resonance frequency of the cavity of the Helmholtz resonance cavity 40 are converted into powerful sound waves and transmitted to the sound outlet 400, and continue to be transmitted outward, impacting the surface of the sound sensor 3. After the sound sensor 3 receives the audio vibration, the piezoelectric material inside generates minute charge changes, which are collected, processed, and stored by the data collector and converted into digital signals.

[0034] In this embodiment, the through-hole diameter of the sound outlet 400 is 2 - 8 mm, preferably 5 mm, and the distance between the sound outlet 400 and the sound sensor 3 is 4 - 6 mm, preferably 5 mm, so that the powerful sound waves transmitted to the sound outlet 400 can be transmitted through air or other media in the atmospheric environment and directly and effectively impact the surface of the sound sensor 3.

[0035] In this embodiment, two audio receiving components 4 are provided for the sound sensor 3, which are respectively located on the upper and lower sides of the inner housing 2. Of course, on the premise of meeting the high-altitude volume and weight, multiple audio receiving components 4 can also be provided for the sound sensor 3 to further increase the audio detection area and amplitude of the sounding device.

[0036] In this embodiment, the audio meteorological sounding device further includes a communication module and a power module. Among them, the communication module can transmit the data collected by the data collector to the data center or cloud platform, and adopts the response excitation trigger mode to realize the transmission of acoustic audio information through the existing limited data transmission bandwidth; the power module provides power for the entire sounding device, and a storage battery is often selected, or other types of energy supply devices can also be selected.

[0037] In this embodiment, the audio meteorological sounding device can be suspended under the balloon to achieve the launch of the audio meteorological sounding device. The weight of the audio meteorological sounding device is affected by the lift of the balloon, and the size and material of the device can be adjusted according to actual needs.

[0038] According to the embodiments of the present disclosure, the following technical effects are achieved:

[0039] The receiving plate 41 is supported on the inner shell 2 by the spring 5, so that the sounding device can remain relatively stable when it is hit or shaken at high altitude, preventing the device from being damaged or affecting the data; by setting the two ends of the outer shell 1 as arc surfaces smoothly connected to the cylinder, the sounding device can receive various environmental information in the atmospheric environment from multiple angles, increasing the comprehensiveness of detection and improving the accuracy of data; by setting the receiving plate 41 as an arc surface with a substantially consistent curvature with the arc surface of the outer shell 1, various vibration information transmitted to the outer shell 1 can be fully and effectively received by the receiving surface 402, further improving the detection accuracy of the sounding device; by setting the Helmholtz resonance cavity 40, using the Helmholtz resonance principle, the tiny vibration in the external atmospheric environment can be converted into a powerful sound wave and transmitted to the sound sensor 3, and captured by the sound sensor 3; a high-sensitivity acoustic sensor is installed inside the meteorological sounding device to realize the collection and response of information such as weak impact vibration, wind noise and environmental acoustic audio; the collection and processing of acoustic audio response data adopts a response excitation triggering method, realizing the transmission of acoustic audio information through the existing limited data transmission bandwidth.

[0040] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An audio radiosonde device, characterized in that, Comprising: An inner housing that forms a closed chamber; A sound sensor disposed within the inner housing; And An audio receiving assembly, The audio receiving assembly includes, A Helmholtz resonance cavity, which is a rigid cavity with a shape close to a sphere, having a through-hole-shaped sound-emitting opening at one end for transmitting audio to the sound sensor, and a receiving end for receiving vibrations at the other end. The Helmholtz resonance cavity is embedded in the inner housing along the direction from the sound-emitting opening pointing to the sound sensor, and the receiving end is exposed on the outer surface of the housing. A receiving plate, which is an arc-shaped panel protruding outward, disposed outside the receiving end, and A spring, which is disposed around the Helmholtz resonance cavity in the inner housing to support the receiving plate and install it outside the receiving end.

2. The audio weather sounding device according to claim 1, wherein Further comprising: An outer housing that forms a closed chamber and covers and supports the inner housing and the components disposed on the inner housing.

3. The audio meteorological radiosonde device according to claim 2, wherein: The outer housing includes a cylindrical body in the middle and arc surfaces protruding outward at both ends of the cylindrical body, and the connection between the cylindrical body and the arc surfaces is smoothly transitioned.

4. The audio meteorological radiosonde device according to claim 1, wherein: Outside the receiving end, there is a receiving surface forming a specified area, and various audio vibration information is received by using the receiving surface.

5. The audio weather sounding device according to claim 4, characterized in that: The distance between the receiving plate and the receiving surface ranges from 1 to 20 mm.

6. The audio meteorological radiosonde device according to any one of claims 2-5, characterized in that: A plurality of audio receiving assemblies are provided for the sound sensor.

7. The audio meteorological radiosonde device according to claim 1, wherein: The resonance frequency of the Helmholtz resonance cavity is 20 to 20 K Hz.

8. The audio meteorological radiosonde device according to claim 4, wherein: The receiving surface has an area of 25 to 300 cm 2 .

9. The audio meteorological radiosonde device according to claim 1, wherein: The through-hole diameter of the sound-emitting opening is 2 to 8 mm.

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