Audio meteorological sounding device

Abstract

The utility model provides an audio meteorological sounding device, which comprises an outer shell, a cylinder in the middle and arc surfaces protruding outwards at the two ends of the cylinder, the cylinder is elastically connected with the arc surfaces through an elastic sleeve, 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 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, the other end of the Helmholtz resonant cavity is provided with a receiving end used for receiving vibration, the Helmholtz 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 exposed out of the outer surface of the shell. According to the utility model, stable detection can be carried out in an atmospheric environment, 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 a troposphere, a humidity characteristic layer and the like of existing sounding, and 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 stably detect in the atmospheric environment, judge the particle morphology, spatial distribution density and phase state of various types of particulate matter, and add 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 an outer shell, a cylinder in the middle and arc surfaces protruding outwards 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 Helmholtz 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 Helmholtz resonance cavity is embedded in the inner shell along the direction in which the sound-releasing port points to the sound sensor, and the receiving end is exposed on the outer surface of the shell.

[0006] 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.

[0007] Furthermore, the sounding device also includes a spring, which is arranged around the Helmholtz resonance cavity, with one end connected to the inner shell and the other end connected to the outer shell.

[0008] Further, a plurality of Helmholtz resonators are provided for the sound sensor.

[0009] Further, the resonance frequency of the Helmholtz resonator is 20 - 20K Hz.

[0010] Further, the cavity volume of the Helmholtz resonator is 10 - 25 cm3.

[0011] Further, the area of the receiving surface is 25 - 300 cm2.

[0012] Further, the through-hole diameter of the sound outlet is 2 - 8 mm.

[0013] Further, the distance between the sound outlet and the sound sensor is 4 - 6 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 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 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 denote 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] Figure 2 shows a schematic structural diagram of an audio meteorological radiosonde provided by another embodiment of the present utility model;

[0018] Wherein, Figure 1 - Figure 2 the corresponding relationship between the reference numerals in and the component names is:

[0019] 1, outer housing; 2, inner housing; 3, sound sensor; 4, Helmholtz resonator; 40, receiving end; 41, receiving surface; 5, spring; 6, elastic sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] 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 with reference to the drawings in the embodiments of the present disclosure. Apparently, 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 scope of protection of the present disclosure.

[0021] In addition, the term "and / or" in this text is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the preceding and following associated objects.

[0022] Refer to the following Figure 1 to describe an audio meteorological radiosonde device provided by an embodiment of the present utility model.

[0023] The present disclosure provides an audio meteorological radiosonde device, including an outer housing 1, an inner housing 2 supported inside the outer housing 1, a sound sensor 3 disposed inside the inner housing 2, and a Helmholtz resonance cavity 4 embedded in the inner housing 2. 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 two ends of the cylindrical body and the arc surfaces are respectively connected by elastic sleeves 6, forming a closed chamber inside the outer housing 1. The elastic sleeves 6 have an elastic margin, enabling the arc surfaces to perform elastic movement at both ends of the cylindrical body; the Helmholtz resonance cavity 4 is a rigid chamber with a shape close to a sphere. One end thereof is provided with a through-hole-shaped sound outlet for transmitting audio to the sound sensor 3, and the other end is provided with a receiving end 40 for receiving vibrations. The Helmholtz resonance cavity 4 is embedded in the inner housing 2 along the direction from the sound outlet pointing to the sound sensor 3, and the receiving end 40 is exposed on the outer surface of the inner housing 2. When various vibrations such as particle impacts, ambient audio, and wind noise information in the external environment are transmitted to the outer housing 1, they are transmitted to the inside of the Helmholtz resonance cavity 4 through the receiving end 40 and are finally captured by the sound sensor 3 via the sound outlet.

[0024] In this embodiment, when the radiosonde device is placed in the atmospheric environment to be detected, on the one hand, the closed outer housing 1 can protect other components inside it and prevent damage; on the other hand, 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; moreover, the design of the elastic sleeves 6 enables the radiosonde device to remain relatively stable when being impacted by high-altitude particles or shaken, improving the detection accuracy. When particles impact the arc surfaces of the outer housing 1, the arc surfaces approach the receiving end 40 under the drive of the elastic sleeves 6, enabling various vibration information on the outer housing 1 to be effectively transmitted to the receiving end 40.

[0025] In this embodiment, the Helmholtz resonance principle can be utilized to screen the vibrations 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 natural resonance frequency inside the cavity of the Helmholtz resonance cavity 4, a resonance phenomenon occurs inside the cavity of the Helmholtz resonance cavity 4. The audio vibrations equal to or close to the natural resonance frequency of the Helmholtz resonance cavity 4 will reflect back and forth inside the cavity of the Helmholtz resonance cavity 4, and the amplitude and intensity of the sound waves are greatly amplified to form resonance, converting the tiny vibrations at the outer wall of the cavity of the Helmholtz resonance cavity 4 into powerful sound waves inside the cavity and transmitting them to the sound outlet. At this time, the air at the sound outlet vibrates and continues to transmit the amplified sound waves outward until the powerful sound waves strike the surface of the sound sensor 3 and are captured by the sound sensor 3. In actual vibrations, in addition to the vibration of the air column inside the sound outlet, part of the air near the outside of the sound outlet also vibrates simultaneously, enabling the powerful sound waves to be transmitted to the surface of the sound sensor 3.

[0026] Specifically, various particle impacts, environmental 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 outer wall of the Helmholtz resonance cavity 4 exposed to the inner housing 2 through air as the medium. They are screened inside the Helmholtz resonance cavity 4, and the vibrations equal to or close to the natural frequency of the Helmholtz resonance cavity 4 are amplified, transmitted to the sound outlet, and finally received by the sound sensor 3.

[0027] More specifically, the Helmholtz resonance cavity 4 is made of an elastic material. In this embodiment, it is preferably made of a carbon fiber honeycomb sandwich panel material. In some other embodiments, it can also be replaced with a thermoplastic resin made of propylene polymerization, stainless steel, or other materials; the cavity volume is 10 - 25 cm 3 , preferably 15 - 20 cm 3 ; the resonance frequency is 20 - 20 K Hz, and more extensive and more meaningful audio vibration data can be obtained at this natural resonance frequency.

[0028] In this embodiment, outside the receiving end 40 of the Helmholtz resonance cavity 4, there is a receiving surface 41 with a specified area formed. Among them, the area of the receiving surface 41 is 25 - 300 mm 2 , preferably 100 - 200 mm 2 ; the shape of the receiving surface 41 is not limited. Here, it is preferably a plane, and the receiving surface 41 is used to receive various audio vibration information transmitted from the outer housing 1; the receiving surface 41 is made of an elastic material, which is the same as the Helmholtz resonance cavity 4, preferably made of a carbon fiber honeycomb sandwich panel material. In some other embodiments, it can also be replaced with a thermoplastic resin made of propylene polymerization, stainless steel, or other materials.

[0029] Specifically, the carbon fiber honeycomb sandwich panel used in this embodiment has thinner and higher-strength face sheets on the upper and lower parts, and a thicker and lighter honeycomb core in the middle. An adhesive is used to bond the upper and lower face sheets to the honeycomb core. In this way, the receiving surface 41 has higher strength, improving the vibration conduction rate of various audio vibration information from the outer housing 1 to the receiving surface 41; and the upper and lower face sheets of the receiving surface 41 are both thinner, further improving the vibration conduction rate when various sound waves are transmitted between the outer housing 1 and the receiving surface 41, enabling the sounding device to monitor the atmospheric environment more comprehensively.

[0030] In this embodiment, various particles in the atmospheric environment, impact, environmental audio, wind noise information, etc. first impact the outer housing 1, and 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 outer wall of the Helmholtz resonance cavity 4 exposed to the inner housing 2.

[0031] Specifically, a part of the audio vibration information at the outer housing 1 is directly transmitted to the receiving surface 41 or the wall surface of the Helmholtz resonance cavity 4 exposed to the inner housing 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; another part is transmitted to other positions inside the outer housing 1 except for the receiving surface 41 and the wall surface of the Helmholtz resonance cavity 4 exposed to the inner housing 2, and bounces back and forth between these positions and the outer housing 1 until it is finally received by the receiving surface 41, and then is captured by the sound sensor 3 after being screened and amplified by the Helmholtz resonance cavity 4. In some other embodiments, the wall surface of the Helmholtz resonance cavity 4 exposed to the inner housing 2 may only include the receiving surface 41.

[0032] More specifically, the minute vibrations inside the Helmholtz resonance cavity 4 that are equal to or close to the natural resonance frequency of the cavity 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 generates minute charge changes, and these changes are collected, processed, and stored by the data collector and converted into digital signals.

[0033] In this embodiment, the diameter of the through-hole of the sound outlet is 2 - 8 mm, preferably 5 mm, and the distance between the sound outlet and the sound sensor 3 is 4 - 6 mm, preferably 5 mm, so that the powerful sound waves transmitted to the sound outlet can be transmitted through air or other media in the atmospheric environment and directly and effectively hit the surface of the sound sensor 3.

[0034] In this embodiment, a support and fixing member is provided at the cylindrical body of the outer housing 1 to fixedly support the inner housing 2 inside the outer housing 1, so that the inner housing 2 can be stably supported inside the outer housing 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.

[0035] 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.

[0036] 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.

[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 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.

[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 descriptions of the terms "one embodiment", "some embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above are only the 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 changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within 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 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 vibration. The Helmholtz 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 exposed on the outer surface of the shell.

2. 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.

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

4. The audio meteorological sounding device according to any one of claims 1 to 3, characterized in that: The acoustic sensor is provided with a plurality of Helmholtz resonant cavities.

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

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

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

8. 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.

9. 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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