Audio meteorological sounding device

Abstract

The invention provides an audio meteorological sounding device which comprises an outer shell, the outer shell comprises a cylinder in the middle and arc surfaces protruding outwards at the two ends of the cylinder, the cylinder and the arc surfaces are elastically connected through elastic sleeves, and a closed cavity is formed in the outer shell; the inner shell forms a closed cavity and is supported in the outer shell; the sound sensor is arranged in the outer shell; the resonant cavity is a rigid cavity which is approximately spherical, one end of the resonant cavity is provided with a through-hole-shaped sound playing port used for transmitting audio to the sound sensor, the other end of the resonant cavity is provided with a receiving end used for receiving vibration, the resonant cavity is embedded into the inner shell in the direction that the sound playing port points to the sound sensor, and the receiving end is located on the outer side of the shell. According to the invention, stable detection can be carried out in the atmospheric environment, the particle morphology, spatial distribution density and phase state conditions of various particulate matters can be judged, an observation means is added for the meteorological sounding service, acoustic audio verification is provided for the 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 weather detection, and more particularly, to an audio weathersonde. Background Art

[0002] Meteorological observation is the foundation for building a solid first line of defense for meteorological disaster prevention and reduction, and it is urgent to improve the precision monitoring capabilities of disastrous weather. Meteorological work plays a fundamental role in scientific and technological support, enhancing the ability to observe basic climate variables and the multi-sphere observation of the climate system, and providing observation data support for responding to climate change.

[0003] Currently, existing meteorological sounding devices only have temperature, humidity, air 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 meteorological observation products are all generated by calculating temperature, humidity, air pressure, and position information. The meteorological elements that can be used as reference for the calculation are limited, and there is no direct means of verification. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides an audio meteorological sounding device, which can stably detect in the atmospheric environment, judge the particle morphology, spatial distribution density and phase state of various types of particulate matter, add a new observation means for meteorological sounding services, and at the same time provide acoustic audio verification for the existing sounding troposphere, humidity characteristic layer and other identification, thus realizing the full-process audio monitoring of the existing sounding.

[0005] The invention provides an audio meteorological sounding device, comprising an outer shell, a cylinder in the middle and arc surfaces protruding outward at both ends of the cylinder, the cylinder and the arc surfaces being elastically connected by an elastic sleeve, and a closed chamber being formed inside the outer shell; an inner shell, which forms a closed chamber and is supported inside the outer shell; a sound sensor, which is arranged inside the outer shell; and a resonance cavity, which is a rigid chamber with a shape close to a sphere, one end of which is provided with a through-hole-shaped sound-releasing port for transmitting audio to the sound sensor, and the other end of which is provided with a receiving end for receiving vibration, the resonance cavity is embedded in the inner shell along the direction of the sound-releasing port pointing to the sound sensor, and the receiving end is located outside the shell.

[0006] Furthermore, the resonant cavity is a Helmholtz resonant cavity.

[0007] Furthermore, a receiving surface with a specified area is provided on the outside of the receiving end, and various audio vibrations are received by utilizing the receiving surface.

[0008] Furthermore, the sounding device also includes a spring, which is arranged around the resonance cavity, with one end connected to the inner shell and the other end connected to the outer shell.

[0009] Furthermore, a plurality of resonance cavities are provided for the sound sensor.

[0010] Furthermore, the resonance frequency of the resonance cavity is 20 to 20 kHz.

[0011] Furthermore, the cavity volume of the resonance cavity is 10 to 25 cm3.

[0012] Furthermore, the area of ​​the receiving surface is 25 to 300 cm2.

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

[0014] Furthermore, the distance between the sound outlet and the sound sensor is 4 to 6 mm.

[0015] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended 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

[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0017] Figure 1 A schematic structural diagram of an audio meteorological sounding device provided by an embodiment of the present invention is shown;

[0018] Figure 2 A schematic structural diagram of an audio meteorological sounding device provided by another embodiment of the present invention is shown;

[0019] in, Figure 1-Figure 2 The corresponding relationship between the reference numerals and component names in the figure is:

[0020] 1. Outer shell; 2. Inner shell; 3. Sound sensor; 4. Resonance cavity; 40. Receiving end; 41. Receiving surface; 5. Spring; 6. Elastic sleeve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution 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 part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0022] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] Refer to the following Figure 1 An audio meteorological sounding device provided by an embodiment of the present invention is described.

[0024] The present disclosure provides an audio meteorological sounding device, comprising an outer shell 1, an inner shell 2 supported inside the outer shell 1, a sound sensor 3 arranged inside the inner shell 2, and a resonance cavity 4 embedded in the inner shell 2. The outer shell 1 comprises a cylinder in the middle and arc surfaces protruding outward at both ends of the cylinder, and the two ends of the cylinder and the arc surfaces are respectively connected by elastic sleeves 6, forming a closed chamber in the outer shell 1, and the elastic sleeve 6 has an elastic margin, so that the arc surface can perform elastic movement at both ends of the cylinder; the resonance cavity 4 is a rigid chamber with a shape close to a sphere, one end of which is provided with a through-hole sound-releasing port for transmitting audio to the sound sensor 3, and the other end is provided with a receiving end 40 for receiving vibration, the resonance cavity 4 is embedded in the inner shell 2 along the direction of the sound-releasing port pointing to the sound sensor 3, and the receiving end 40 is located outside the inner shell 2, so that various vibrations such as particle impact, environmental audio and wind noise information in the external environment are transmitted to the outer shell 1, and then transmitted to the resonance cavity 4 through the receiving end 40, and finally captured by the sound sensor 3 through the sound-releasing port.

[0025] In this embodiment, when the sounding device is placed in the atmospheric environment to be detected, on the one hand, the closed outer shell 1 can protect other components inside it to prevent damage; on the other hand, the arc surfaces at both ends of the outer shell 1 can receive various types of particle information from different directions in the atmospheric environment at multiple angles, thereby increasing the comprehensiveness of meteorological monitoring and improving monitoring accuracy; not only that, the design of the elastic sleeve 6 allows the sounding device to remain relatively stable when hit or shaken by high-altitude particles, thereby improving detection accuracy, and when particles hit the arc surface of the outer shell 1, driven by the elastic sleeve 6, the arc surface approaches the receiving end 40, so that various types of vibration information on the outer shell 1 can be effectively transmitted to the receiving end 40.

[0026] In this embodiment, the resonance cavity 4 is a Helmholtz resonance cavity 4, and the Helmholtz resonance principle can be used to screen the vibration transmitted to the outer wall of the Helmholtz resonance cavity 4. When the audio vibration frequency at the outer wall of the Helmholtz resonance cavity 4 is equal to or close to the inherent resonance frequency in the cavity of the Helmholtz resonance cavity 4, a resonance phenomenon occurs in the cavity of the Helmholtz resonance cavity 4. The audio vibration equal to or close to the inherent resonance frequency of the Helmholtz resonance cavity 4 will be reflected back and forth in the cavity of the Helmholtz resonance cavity 4, and the amplitude and sound intensity of the sound wave will be greatly amplified to form resonance, converting the tiny vibration at the outer wall of the Helmholtz resonance cavity 4 into a powerful sound wave in the cavity and transmitting it to the sound outlet. At this time, the air at the sound outlet vibrates and continues to transmit the amplified sound wave outward until the powerful sound wave hits the surface of the sound sensor 3 and is captured by the sound sensor 3. In actual vibration, in addition to the vibration of the air column inside the sound outlet, part of the air near the sound outlet also vibrates at the same time, so that powerful sound waves can be transmitted to the surface of the sound sensor 3.

[0027] Specifically, various particle impacts, environmental audio, wind noise information, etc. transmitted to the outer shell 1 are converted into vibrations of different frequencies at the outer shell 1 and transmitted to the outer wall of the Helmholtz resonance cavity 4 exposed at the inner shell 2 through air, and are screened inside the Helmholtz resonance cavity 4 and amplified to have the same or similar natural frequency as that of the Helmholtz resonance cavity 4, and transmitted to the sound outlet, and finally received by the sound sensor 3.

[0028] More specifically, the Helmholtz resonance cavity 4 is made of elastic material. In this embodiment, it is preferably made of carbon fiber honeycomb sandwich plate material. In some other embodiments, it can also be replaced by thermoplastic resin made of propylene polymerization, stainless steel and other materials; the cavity volume is 10 to 25 cm 3 , preferably 15 to 20 cm 3 ; The resonance frequency is 20~20K Hz, and a wider range of audio vibration data with more reference significance can be obtained at this natural resonance frequency.

[0029] In this embodiment, the receiving end 40 of the Helmholtz resonant cavity 4 has a receiving surface 41 with a predetermined area outside, wherein the area of ​​the receiving surface 41 is 25 to 300 mm. 2 , preferably 100 to 200 mm 2 ; The shape of the receiving surface 41 is not limited, and it is preferably a plane here, and the receiving surface 41 is used to receive various audio vibration information transmitted from the outer shell 1; the receiving surface 41 is made of elastic material, consistent with the Helmholtz resonance cavity 4, and is preferably made of carbon fiber honeycomb sandwich panel material. In some other embodiments, it can also be replaced by thermoplastic resin made of propylene polymerization, stainless steel and other materials.

[0030] Specifically, the carbon fiber honeycomb sandwich panel used in this embodiment has thinner upper and lower panels with higher strength, and a thicker and lighter honeycomb core in the middle, and the upper and lower panels are glued together with the honeycomb core by adhesive. In this way, the receiving surface 41 has higher strength, which improves the vibration conductivity of various audio vibration information transmitted from the outer shell 1 to the receiving surface 41; and the upper and lower panels of the receiving surface 41 are both thin, which further improves the vibration conductivity of various sound waves when transmitted between the outer shell 1 and the receiving surface 41, so that the sounding device can perform more comprehensive monitoring of the atmospheric environment.

[0031] In this embodiment, various particle impacts, environmental audio and wind noise information in the atmospheric environment first hit the outer shell 1, where they are converted into vibrations of different frequencies and transmitted to the outer wall of the Helmholtz resonance cavity 4 exposed on the inner shell 2 using the air in the outer shell 1 as a medium.

[0032] Specifically, part of the audio vibration information at the outer shell 1 is directly transmitted to the receiving surface 41 or the wall surface of the Helmholtz resonance cavity 4 exposed on the inner shell 2, and most of it is transmitted to the receiving surface 41, and is captured by the sound sensor 3 after being screened and amplified by the Helmholtz resonance cavity 4; the other part is transmitted to other positions inside the outer shell 1 except the receiving surface 41 and the wall surface of the Helmholtz resonance cavity 4 exposed on the inner shell 2, and bounces back and forth between other positions and the outer shell 1 until it is finally received by the receiving surface 41, and then is screened and amplified by the Helmholtz resonance cavity 4 and captured by the sound sensor 3. In some other embodiments, the wall surface of the Helmholtz resonance cavity 4 exposed on the inner shell 2 may only include the receiving surface 41.

[0033] More specifically, tiny vibrations inside the Helmholtz resonance cavity 4 that are equal to or close to the inherent resonance frequency of the Helmholtz resonance cavity 4 are converted into powerful sound waves and transmitted to the sound outlet, and continue to be transmitted outward, hitting the surface of the sound sensor 3. After the sound sensor 3 receives the audio vibration, the piezoelectric material inside produces a tiny charge change, which is collected, processed and stored by the data collector and converted into a digital signal.

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

[0035] In this embodiment, a supporting fixture is provided at the cylinder of the outer shell 1 to fix the inner shell 2 inside the outer shell 1, so that the inner shell 2 can be stably supported in the outer shell 1. In some other embodiments, such as Figure 2As shown, a spring 5 is arranged on the inner shell 2 around the Helmholtz resonance cavity 4, one end of which is connected to the inner shell 2 and the other end is connected to the outer shell 1, further increasing the stability of the inner shell 2 in the outer shell 1.

[0036] In this embodiment, two Helmholtz resonance cavities 4 are provided for the sound sensor 3, respectively located at the upper and lower sides of the inner shell 2. Of course, under the premise of meeting the high-altitude volume and weight requirements, multiple Helmholtz resonance cavities 4 can also be provided for the sound sensor 3 to further increase the area and amplitude of the audio detection of the sounding device.

[0037] In this embodiment, the audio meteorological sounding device also includes a communication module and a power supply module. The communication module can transmit the data collected by the data collector to the data center or cloud platform, and adopts a response excitation triggering method to realize the transmission of acoustic audio information through the existing limited data transmission bandwidth; the power supply module provides power for the entire sounding device, and usually selects an energy storage battery, and other types of energy supply devices can also be selected.

[0038] 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.

[0039] According to the embodiments of the present disclosure, the following technical effects are achieved:

[0040] The inner shell 2 is stably supported inside the outer shell 1 by the elastic sleeve 6 and 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 into arc surfaces, the sounding device can receive various environmental information in the atmospheric environment from multiple angles, thereby increasing the comprehensiveness of detection and improving the accuracy of data; by setting up the Helmholtz resonance cavity 4 and utilizing the Helmholtz resonance principle, the tiny vibrations in the external atmospheric environment can be converted into powerful sound waves and transmitted to the sound sensor 3 to be 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 vibrations, wind noise and environmental acoustic audio; the collection and processing of acoustic audio response data adopts a response excitation triggering method, thereby realizing the transmission of acoustic audio information through the existing limited data transmission bandwidth.

[0041] 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.

[0042] 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.

[0043] 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 meteorological sounding device, characterized in that: include: The outer shell comprises a cylinder in the middle and arc surfaces protruding outward at both ends of the cylinder, the cylinder and the arc surfaces are elastically connected via an elastic sleeve, and a closed chamber is formed inside the outer shell; an inner shell, which forms a closed chamber and is supported inside the outer shell; A sound sensor is arranged inside the outer shell; and The resonant cavity is a rigid cavity with a shape close to a sphere, one end of which is provided with a through-hole-shaped sound outlet for transmitting audio to the sound sensor, and the other end is provided with a receiving end for receiving vibration. The resonance cavity is embedded in the inner shell along the direction in which the sound outlet points to the sound sensor, and the receiving end is located outside the shell.

2. The audio meteorological sounding device according to claim 1, characterized in that: The resonant cavity is a Helmholtz resonant cavity.

3. The audio meteorological sounding device according to claim 1, characterized in that: A receiving surface with a specified area is provided on the outside of the receiving end, and various audio vibrations are received by using the receiving surface.

4. The audio meteorological sounding device according to claim 1, characterized in that: Also includes: A spring is arranged around the resonance cavity, one end of the spring is connected to the inner shell, and the other end of the spring is connected to the outer shell.

5. The audio meteorological sounding device according to claims 2-4, characterized in that: The acoustic sensor is provided with a plurality of resonance cavities.

6. The audio meteorological sounding device according to claim 1, characterized in that: The resonance cavity has a resonance frequency of 20 to 20 kHz.

7. The audio meteorological sounding device according to claim 1, characterized in that: The resonant cavity has a cavity volume of 10 to 25 cm 3 .

8. The audio meteorological sounding device according to claim 3, characterized in that: The receiving surface has an area of ​​25 to 300 cm 2 .

9. The audio meteorological sounding device according to claim 1, characterized in that: The sound outlet has a through hole diameter of 2 to 8 mm.

10. The audio meteorological sounding device according to claim 1, characterized in that: The distance between the sound outlet and the sound sensor is 4 to 6 mm.

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