Audio meteorological sounding device

Abstract

The utility model provides an audio meteorological sounding device, which is characterized in that the audio meteorological sounding device comprises a closed cubic cover body and an audio receiving device arranged in the cover body, the audio receiving device comprises a shell, and a closed cavity is formed by the shell; the sound sensor is arranged in the 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 the audio; the Helmholtz resonant cavity is embedded into the shell along the direction from the sound playing port to the sound sensor, and the receiving end is exposed out of the outer surface of the shell. According to the utility model, particle morphology, spatial distribution density and phase state conditions of various particulate matters can be 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 weather detection, and more particularly, to an audio weathersonde. Background Art

[0002] Against the backdrop of global warming, my country's extreme weather and climate events have increased in number and intensity, and meteorological observation is the basis for building a solid first line of defense for meteorological disaster prevention and mitigation. It is urgent to improve the precision monitoring capabilities of disastrous weather. Thirdly, in the national strategy of achieving ecological civilization and the "dual carbon" goals, meteorological work plays a basic scientific and technological support role, enhancing the observation capabilities of 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. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides an audio meteorological sounding device, which can determine the particle morphology, spatial distribution density and phase state of various types of particulate matter, adding a new observation method for meteorological sounding services. At the same time, it provides acoustic audio verification for the existing sounding troposphere, humidity characteristic layer and other identification, and realizes the full process audio monitoring of the existing sounding.

[0005] The utility model provides an audio meteorological sounding device, comprising a closed cubic cover body and an audio receiving device arranged inside the cover body, wherein the audio receiving device comprises a shell body, which forms a closed chamber; a sound sensor, which is arranged in the shell body; and an audio receiving component, the audio receiving component comprises a Helmholtz resonance cavity, which is a rigid cavity 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 audio, the Helmholtz resonance cavity is embedded in the shell body along the direction in which the sound-releasing port points to the sound sensor, and the receiving end is exposed at the outer surface of the shell body.

[0006] Furthermore, a receiving surface which is a plane with a predetermined area is provided outside the receiving end, and the impact sound of the atmospheric particles is received by the receiving surface.

[0007] Furthermore, the audio receiving component also includes a receiving plate arranged on the outer side of the receiving surface and parallel to the receiving surface. After the impact sound of the atmospheric particles is transmitted to the receiving plate, the impact sound is indirectly transmitted to the receiving surface.

[0008] Furthermore, the distance between the receiving plate and the receiving surface is 1 to 4 mm.

[0009] Furthermore, the receiving plate is supported on the housing via springs arranged around the Helmholtz resonance cavity.

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

[0011] Furthermore, the resonant frequency of the Helmholtz resonant cavity is 20 to 20 kHz.

[0012] Furthermore, the receiving surface area is 50 to 300 cm 2 .

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

[0014] It should be understood that the contents described in the utility model summary 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

[0015] 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:

[0016] Figure 1 A schematic structural diagram of an audio meteorological sounding device provided by an embodiment of the utility model is shown;

[0017] in, Figure 1 The corresponding relationship between the reference numerals and component names in the figure is:

[0018] 1 cover, 2 shell, 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

[0019] 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.

[0020] 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.

[0021] Refer to the following Figure 1 An audio meteorological sounding device provided by an embodiment of the utility model is described.

[0022] Specifically, an audio meteorological sounding device includes a closed cubic cover 1 and an audio receiving device arranged inside the cover 1, wherein the audio receiving device includes a shell 2, which forms a closed chamber; a sound sensor 3, which is arranged in the shell 2; and an audio receiving component 4, the audio receiving component 4 includes a Helmholtz resonance cavity 40, which is a rigid cavity with a shape close to a sphere, one end of which is provided with a through-hole-shaped sound outlet 400 for transmitting audio to the sound sensor 3, and the other end is provided with a receiving end 401 for receiving audio, the Helmholtz resonance cavity 40 is embedded in the shell 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 shell 2.

[0023] In this embodiment, the cover body 1 is in a cubic shape, forming a closed chamber, which protects the audio receiving device and other components arranged inside it, while not affecting the impact of various particles in the atmospheric environment outside the cover body 1, the transmission of vibration waves such as ambient audio and wind noise information, so that all kinds of audio information will eventually be received by the receiving board 41.

[0024] In this embodiment, the Helmholtz resonance principle can be used to screen various audio information in the atmospheric environment 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 inherent resonance frequency in the cavity of the Helmholtz resonance cavity 40, resonance occurs in the cavity of the Helmholtz resonance cavity 40. Various audio information with the inherent resonance frequency equal to or close to the Helmholtz resonance cavity 40 will be reflected back and forth in the cavity of the Helmholtz resonance cavity 40, and the amplitude and sound intensity of the sound waves will be greatly amplified to form resonance, converting the tiny vibration at the outer wall of the Helmholtz resonance cavity 40 into a powerful sound wave in the cavity and transmitting it 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 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 in the sound outlet 400 , part of the air outside the sound outlet 400 near the sound outlet 400 also vibrates simultaneously, so that powerful sound waves can be transmitted to the surface of the sound sensor 3 .

[0025] Specifically, the Helmholtz resonance cavity 40 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.

[0026] In this embodiment, the audio receiving component 4 also includes a receiving plate 41. Specifically, a receiving surface 402 forming a plane of a specified area is provided on the outside of the receiving end 401, and a receiving plate 41 parallel to the receiving surface 402 is provided on the outside of the receiving surface 402. A fixed distance is left between the receiving plate 41 and the receiving surface 402, so that after the vibration of various particles in the atmospheric environment is transmitted to the audio receiving device, it can be transmitted back and forth between the receiving surface 402 and the receiving plate 41, so that after the particle vibration is transmitted to the receiving plate 41, it rebounds to the receiving surface 402, and finally transmitted to the outer wall of the Helmholtz resonance cavity 40 through the receiving end 401. Among them, the receiving surface 402 can directly or indirectly receive the vibration waves of the impact of various particles in the atmospheric environment, environmental audio, wind noise information, etc. transmitted to the audio receiving device.

[0027] In this embodiment, the area of ​​the receiving surface 402 is 25 to 300 mm. 2 , preferably 100 to 200 mm 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 the vibration waves of various particle collisions, environmental audio, wind noise information, etc. in the atmospheric environment transmitted to the audio receiving device are more easily transmitted to the receiving plate 41 first, and then to the receiving surface 402, increasing the area and amplitude of audio detection. In this embodiment, the distance between the receiving plate 41 and the receiving surface 402 is 1 to 20 mm, preferably 5 to 10 mm; the receiving surface 402 is made of elastic material, which is consistent with the Helmholtz resonance cavity 40. 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 resins made of propylene polymerization, stainless steel and other materials; the receiving plate 41 is made of metal material, preferably SUS304 material in this embodiment, and can also be replaced by other stainless steel materials in some other embodiments. Among them, the thickness of the receiving plate 41 is 0.2 to 0.5 mm, preferably 0.3 mm.

[0028] 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 plate 41 and the receiving surface 402 both have higher strength, which improves the vibration conductivity of various sound waves when they are transmitted between the receiving plate 41 and the receiving surface 402; and the upper and lower panels of the receiving plate 21 and the receiving surface 402 are both thinner, which further improves the vibration conductivity of various sound waves when they are transmitted between the receiving plate 41 and the receiving surface 402, so that the sounding device can perform more comprehensive monitoring of the atmospheric environment.

[0029] In this embodiment, the receiving plate 41 is supported on the housing 2 via the springs 5 ​​arranged around the Helmholtz resonance cavity 40, so that the receiving plate 41 and the receiving surface 402 can still maintain a relatively stable state when impacted.

[0030] In this embodiment, various particle impacts, environmental audio and wind noise information in the atmospheric environment first impact the cover body 1, and various audio information uses the air in the cover body 1 as a medium to transmit the vibration to the audio receiving device, and first transmits it to the receiving plate 41, and then transmits it from the receiving plate 41 to the receiving surface 402, and then transmits it to the outer wall of 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 tiny vibration equal to or close to the inherent resonance frequency of the cavity of the Helmholtz resonance cavity 40 is converted into a powerful sound wave and transmitted to the sound outlet 400, and continues to be transmitted outward, impacting the surface of the sound sensor 3. After the sound sensor 3 receives the audio vibration, the internal piezoelectric material produces a tiny charge change, which is collected, processed and stored by the data collector and converted into a digital signal.

[0031] In this embodiment, the diameter of the through hole of the sound outlet 400 is 2 to 8 mm, preferably 5 mm, and the distance between the sound outlet 400 and the sound sensor 3 is 4 to 6 mm, preferably 5 mm, so that the strong sound waves transmitted to the sound outlet 400 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.

[0032] In this embodiment, two audio receiving components 4 are provided for the sound sensor 3, respectively located on the upper and lower sides of the housing 2. Of course, under the premise of meeting the high-altitude volume and weight requirements, multiple audio receiving components 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.

[0033] 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.

[0034] 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.

[0035] According to the embodiments of the present disclosure, the following technical effects are achieved:

[0036] By setting up a Helmholtz resonance cavity 40 and utilizing the Helmholtz resonance principle, 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; by setting up a receiving plate 41 and a receiving surface 402, the audio detection area and detection amplitude are increased to the maximum extent while meeting the weight and volume requirements of the meteorological sounding device; 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, which realizes the transmission of acoustic audio information through the existing limited data transmission bandwidth.

[0037] 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.

[0038] 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.

[0039] 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: The invention comprises a closed cubic cover and an audio receiving device arranged inside the cover, wherein the audio receiving device comprises: a housing forming a closed chamber; a sound sensor disposed in the housing; and Audio receiving component, The audio receiving component comprises: The Helmholtz resonance 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 audio. The Helmholtz resonance cavity is embedded in the shell along the direction in which the sound outlet points to the sound sensor, and the receiving end is exposed on the outer surface of the shell.

2. The audio meteorological sounding device according to claim 1, characterized in that: A receiving surface which is a plane with a predetermined area is provided outside the receiving end, and the impact sound of the atmospheric particles is received by the receiving surface.

3. The audio meteorological sounding device according to claim 2, characterized in that: The audio receiving component also includes a receiving plate arranged outside the receiving surface and parallel to the receiving surface. After the impact sound of the atmospheric particles is transmitted to the receiving plate, the impact sound is indirectly transmitted to the receiving surface.

4. The audio meteorological sounding device according to claim 3, characterized in that: The receiving plate has a distance from the receiving surface of 1 to 20 mm.

5. The audio meteorological sounding device according to claim 3, characterized in that: The receiving plate is supported on the housing via a spring arranged around the Helmholtz resonance cavity.

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

7. The audio meteorological sounding device according to claim 1, characterized in that: The resonant frequency of the Helmholtz resonant cavity is 20-20K Hz.

8. The audio meteorological sounding device according to claim 2, 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.

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