A mosquito attractant and killer and a mosquito sensing method

Abstract

This invention discloses a mosquito attractant and killer, and a mosquito sensing method, belonging to the field of mosquito trapping device technology. It includes a mosquito trapping module, a mosquito sensing module, and an electric mosquito sensor. The mosquito sensing method involves converting sound waves into electrical signals and capturing the sound waves with the wing-beating frequency of mosquitoes through a controller. The attractant component lures nearby mosquitoes into the trapping chamber and traps them briefly, triggering the mosquito sensing module. The mosquito sensing module senses the wing-beating frequency of the trapped mosquitoes and activates the electric grid in real time to electrocute them. This method is energy-efficient and offers higher safety. The mosquito sensing module is installed in both the mounting cavity and the trapping chamber, improving its safety. The controller has NB-IoT communication capabilities, allowing for real-time reporting of mosquito identification information and the number of electric shocks. This mosquito sensing method can detect the presence of mosquitoes and is suitable for use in mosquito-killing devices or devices requiring mosquito sensing.

Description

Technical Field

[0001] This invention relates to a mosquito attractant and killer and a method for attracting and killing mosquitoes, belonging to the field of mosquito trapping equipment technology. Background Technology

[0002] Aedes albopictus is a major vector for dengue fever in my country. These mosquitoes prefer dark, secluded habitats such as bushes, grassy areas, greenbelts, and ponds. People passing by these habitats are bitten. To reduce or prevent bites to humans and animals, mosquito traps are typically installed in schools, residential communities, hospitals, and park greenbelts. Currently, the most common mosquito control equipment is the mosquito lamp, which emits light to attract nearby mosquitoes to an electric grid, where they are electrocuted. However, to ensure the light shines through, existing mosquito lamps usually lack a protective cover, leaving the electric grid exposed. This presents several problems: firstly, the grid is prone to short circuits during rain or snow; secondly, the high voltage could cause injury if touched by a person or animal, making it unsafe; and thirdly, the grid is constantly running, consuming a significant amount of electricity. Summary of the Invention

[0003] This invention provides a mosquito attractant and killer, which mainly solves the technical problems of existing mosquito attractants and killers being prone to short circuits, posing a potential risk of electric shock, and consuming a lot of electricity in rainy or snowy weather.

[0004] This invention provides a mosquito attractant and killer, the mosquito attractant and killer comprising:

[0005] A mosquito-catching module includes a housing and a mosquito-attracting component; the housing includes an installation cavity and a mosquito-catching cavity, and the housing has an opening for mosquitoes to enter the mosquito-catching cavity, and the mosquito-attracting component is disposed inside the mosquito-catching cavity;

[0006] The mosquito sensing module includes a horn-shaped sound collector with a horn-shaped first resonant cavity, a microphone, and a controller electrically connected to the microphone; the resonant frequency of the first resonant cavity is the wing vibration frequency of a mosquito; the controller and the microphone are both installed in the mounting cavity, and the sound collector is installed in the mosquito-catching cavity;

[0007] An electric mosquito control device is fixedly installed in a mosquito-catching chamber and is electrically connected to a controller.

[0008] As a preferred embodiment of this technical solution, the sound collecting tube has a double-layer structure, including a horn-shaped first resonant wall and a horn-shaped second resonant wall; the second resonant wall is coaxially sleeved on the first resonant wall and a gap is maintained between the second resonant wall and the first resonant wall to form a second resonant cavity; the second resonant wall and the first resonant wall are connected at the large end by an annular plate, so that the second resonant cavity is closed at the large end.

[0009] As a preferred embodiment of this technical solution, the first resonant wall has micro-pits arrayed on the side facing the second resonant wall.

[0010] As a preferred embodiment of this technical solution, the mounting cavity is located above the mosquito-catching cavity; the mounting cavity and the mosquito-catching cavity are separated by a mounting plate, and the mounting plate has a single through hole connecting the mounting cavity and the mosquito-catching cavity;

[0011] The mounting cavity is fixedly connected to a waterproof plate that maintains a certain distance from the mounting plate; a controller is fixedly mounted on the waterproof plate and a microphone is fixedly mounted on the lower surface of the waterproof plate, so as to maintain a certain distance between the controller and the microphone and the mounting plate; the pickup part of the microphone is directly opposite the through hole;

[0012] The mounting plate is fixedly connected to the small end of the sound collector on one side of the mosquito trapping chamber, and an electric mosquito device is insulated and fixedly installed on the side of the mounting plate located in the mosquito trapping chamber; the small end of the sound collector is covered with a through hole.

[0013] As a preferred embodiment of this technical solution, it further includes a shielding cover made of sound-insulating material for shielding background noise; the shielding cover covers the shell to reduce background noise and improve the sensitivity of the controller in capturing sound waves of characteristic frequencies.

[0014] As a preferred technical solution of this invention, the controller is a controller with NB-IoT communication function, which can report mosquito identification information and the number of times mosquitoes are electrocuted in real time, and can maintain extremely low power consumption in standby mode.

[0015] As a preferred embodiment of this technical solution, a shielding top plate is fixedly connected to the top of the shell, and the shielding top plate has a shielding edge protruding outward along the outer periphery of the shell. The shielding edge is located above the opening and is used to prevent sunlight or rainwater from entering the interior of the shell through the opening.

[0016] As a preferred embodiment of this technical solution, the shell is fixedly connected with deep-buried piles that can be buried underground for supporting and fixing the shell.

[0017] The present invention also provides a mosquito sensing method, the sensing method comprising the following steps:

[0018] Step 1: Convert both background noise and mosquito wing vibration sound waves into electrical signals;

[0019] Step 2: The controller receives the electrical signal from Step 1 and extracts the sound waves of the mosquito's wingbeat frequency.

[0020] This mosquito sensing method can detect the presence of mosquitoes and is suitable for use in mosquito control devices or devices that require mosquito sensing.

[0021] As a preferred embodiment of this technical solution, before step one, the background noise and the mosquito wing vibration sound waves are sequentially subjected to noise reduction and resonance processing. Through noise reduction and resonance processing, the proportion of mosquito wing vibration sound waves in the electrical signal transmitted to the controller can be increased, thereby improving the sensitivity of the mosquito sensing results.

[0022] The beneficial effects of this invention are:

[0023] By incorporating a mosquito-attracting component, nearby mosquitoes are lured into the mosquito-catching chamber, improving mosquito-catching efficiency. A horn-shaped sound collector collects and resonates characteristic frequency sound waves, amplifying their amplitude and increasing the sensitivity of the microphone in capturing them. The microphone converts the sound signal into an electrical signal. A controller captures the characteristic frequency sound waves, activating the electric grid when mosquitoes are present, saving energy and improving safety. The mosquito-attracting component lures nearby mosquitoes into the mosquito-catching chamber, trapping them briefly and triggering the mosquito-sensing module. This module senses the wing vibration frequency of the trapped mosquitoes and activates the electric mosquito-catching device in real time, saving energy. Furthermore, because the electric mosquito-catching device is installed within the mosquito-catching chamber, it will not short-circuit in rainy or snowy weather and prevents electric shock to humans and animals. The mosquito sensing module is installed in the mounting cavity and the mosquito trapping cavity, which can improve the safety of the mosquito sensing module. The controller has NB-IoT communication function, which can report mosquito identification information and the number of times mosquitoes are electrocuted in real time. This mosquito sensing method can detect the presence of mosquitoes and is suitable for use in mosquito killing devices or devices that need to sense mosquitoes. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 for Figure 1 Sectional view of plane AA;

[0026] Figure 3 A schematic diagram of a bowl-shaped container placed inside a mosquito-catching chamber;

[0027] Figure 4 A schematic diagram showing the connection structure of components such as mounting plate, waterproof plate, controller, microphone, electric mosquito device, and sound collector;

[0028] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0029] Figure 6 A schematic diagram of the connection structure of the shielding plate, mounting plate, waterproof plate, microphone, and sound collector;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the sound collecting tube;

[0031] Figure 8 This is a schematic diagram of a micro-pit array on the surface of the first resonant wall;

[0032] Figure 9 This is a diagram illustrating the working principle of mosquito sensing.

[0033] In the diagram: 1. Shell; 1001. Mounting cavity; 1002. Mosquito trapping cavity; 1003. Mounting plate; 1004. First connecting sleeve; 1005. Top shielding plate; 1006. Second connecting sleeve; 1007. Through hole; 1008. Mosquito trapping part; 1009. Third connecting sleeve; 1010. Opening; 1011. Bolt; 1012. Spacer; 1013. Waterproof plate; 1014. Insulating ceramic terminal block; 2. Controller; 3. Power supply; 4. Microphone; 5. Sound collector; 501. Large end; 502. First resonant cavity; 503. Small end; 504. First resonant wall; 505. Second resonant wall; 506. Second resonant cavity; 507. Micro-pit; 508. Annular plate; 6. Electric mosquito component; 7. Mosquito attracting component; 701. Container; 8. Deep buried pile; 9. Shielding cover; 10. Feeding port. Detailed Implementation

[0034] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific embodiments.

[0035] In the description of this invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are only for ease of description.

[0036] Example 1

[0037] like Figure 1 As shown in the figure, this embodiment provides a mosquito trap, including: a shell 1 for collecting mosquitoes, which can be of any shape. This embodiment uses a cylindrical shell 1 as an example. The outer surface of the shell 1 is preferably black. Mosquitoes are more visually active in dark environments, so the black shell 1 is more conspicuous to mosquitoes and thus attracts nearby mosquitoes. This results in more mosquitoes gathering around the shell 1, increasing the number of mosquitoes that randomly fly into the mosquito trapping chamber 1002.

[0038] like Figure 2 , Figure 4 and Figure 5 As shown, the housing 1 includes a mounting cavity 1001 and a mosquito-catching cavity 1002, which are separated by a mounting plate 1003. The mounting plate 1003 has a single through hole 1007 penetrating both the upper and lower bottom surfaces to connect the mounting cavity 1001 and the mosquito-catching cavity 1002. The through hole 1007 serves as the sole channel for transmitting sound waves from the mosquito-catching cavity 1002 to the mounting cavity 1001.

[0039] like Figure 4 As shown, the mounting cavity 1001 is formed by a mounting plate 1003, a first connecting sleeve 1004 fixedly connected to the top of the mounting plate 1003 along its outer circumference, a shielding top plate 1005, and a second connecting sleeve 1006 fixedly connected to the shielding top plate 1005. The first connecting sleeve 1004 is sleeved on the second connecting sleeve 1006, and the second connecting sleeve 1006 and the first connecting sleeve 1004 are in interference contact or the first connecting sleeve 1004 and the second connecting sleeve 1006 are threaded together. Both of these fixed connection methods for the first connecting sleeve 1004 and the second connecting sleeve 1006 can be achieved.

[0040] This ensures that the connection between the first connecting sleeve 1004 and the second connecting sleeve 1006 is sealed, preventing water from seeping in during rainy or snowy weather.

[0041] Secondly, while improving the connection strength between the first connecting sleeve 1004 and the second connecting sleeve 1006, the first connecting sleeve 1004 and the second connecting sleeve 1006 are easy to disassemble.

[0042] Therefore, the mounting plate 1003, the top shielding plate 1005, the first connecting sleeve 1004, and the second connecting sleeve 1006 together form a mounting cavity 1001 that is completely closed except for the through hole 1007. The mounting cavity 1001 provides shade on sunny days and shelter from rain on rainy days. If water seeps into the mounting cavity 1001, the accumulated water can drain through the through hole 1007, so the maximum water depth inside the mounting plate 1003 is a single layer of water film. The through hole 1007 is preferably located at the center of the mounting plate 1003.

[0043] like Figure 2 and Figure 4As shown, the mosquito-catching chamber 1002 is composed of a mosquito-catching part 1008, a third connecting sleeve 1009, and a mounting plate 1003. The mosquito-catching part 1008 is a cylindrical object closed at the bottom and open at the top. The third connecting sleeve 1009 has an opening 1010 for mosquitoes to enter the mosquito-catching chamber 1002. The third connecting sleeve 1009 is fixedly connected to the outer periphery of the mounting plate 1003 and is located on the lower surface of the mounting plate 1003. The top of the mosquito-catching part 1008 is fitted onto the third connecting sleeve 1009. The fixed connection between the mosquito-catching part 1008 and the third connecting sleeve 1009 includes the following two methods: the outer side of the third connecting sleeve 1009 is in interference contact with the inner side of the mosquito-catching part 1008, or the outer side of the third connecting sleeve 1009 is threadedly connected to the inner side of the mosquito-catching part 1008. Both of the above fixed connection methods can achieve the following:

[0044] This ensures that the connection between the mosquito trapping part 1008 and the third connecting sleeve 1009 is sealed, preventing water from seeping in during rainy or snowy weather.

[0045] Secondly, while improving the connection between the mosquito-catching part 1008 and the third connecting sleeve 1009, the mosquito-catching part 1008 and the third connecting sleeve 1009 are easy to disassemble.

[0046] Mosquitoes randomly fly into the mosquito-catching chamber 1002 through the opening 1010 and will be trapped in the mosquito-catching chamber 1002 for a short time. When the mosquitoes briefly trapped in the mosquito-catching chamber 1002 fly around, their wings vibrate and generate wing vibration sound waves.

[0047] like Figure 6 As shown, several bolts 1011 and several pads 1012 are fixedly connected to the upper surface of the mounting plate 1003; the waterproof plate 1013 is supported on the pads 1012 to maintain a certain distance between the waterproof plate 1013 and the upper surface of the mounting plate 1003. If water seepage occurs in the mounting cavity 1001, the components installed on the waterproof plate 1013 will not come into contact with the accumulated water. The bolts 1011 penetrate the waterproof plate 1013, and the waterproof plate 1013 is fixed by tightening the nuts, so that the waterproof plate 1013 can be easily installed and removed.

[0048] like Figure 6As shown, the controller 2 and power supply 3 can be fixedly installed on the upper or lower end face of the waterproof plate 1013, and the microphone 4 is fixedly installed on the lower end face of the waterproof plate 1013 with its pickup part facing the through hole 1007. The controller 2, power supply 3, and microphone 4, as electrical components, are installed inside the mounting cavity 1001, which prevents them from being exposed to rain and sunlight, thus effectively protecting their service life. Furthermore, even if the mounting cavity 1001 leaks water, the controller 2, power supply 3, and microphone 4 will be protected from contact with accumulated water because they are installed on the waterproof plate 1013, achieving double protection for the electrical components. In addition, the waterproof plate 1013, along with the controller 2, power supply 3, and microphone 4, is easy to disassemble and install, facilitating maintenance.

[0049] like Figure 7 As shown, the sound collector 5 is horn-shaped, including a large end 501 and a small end 503. The small end 503 of the sound collector 5 is fixedly installed on the bottom surface of the mounting plate 1003, and the small end 503 of the horn-shaped sound collector 5 covers the through hole 1007. Sound waves in the mosquito trapping chamber 1002 enter from the large end 501, exit from the small end 503, enter the single through hole 1007, and are finally captured by the pickup 4. The solid part of the mounting plate 1003 blocks sound waves from entering the mounting chamber 1001 from the mosquito trapping chamber 1002.

[0050] The through hole 1007 is preferably positioned at the center of the mounting plate 1003, so that the sound collecting tube 5 can be installed in the middle of the mosquito trapping chamber 1002 to capture sound waves evenly.

[0051] The sound collecting tube 5 is hollow, forming a trumpet-shaped first resonant cavity 502. The first resonant cavity 502 is open at both the large end 501 and the small end 503. The natural frequency of the first resonant cavity 502 is the same as the wing vibration frequency of a mosquito. Since the wing vibration frequency of a mosquito is approximately 1000-1200Hz, the natural frequency of the first resonant cavity 502 can be set to any value within the 1000-1200Hz range; for example, it can be set to 1000Hz. Some of the wing vibration sound waves and background noise sound waves enter the first resonant cavity 502 directly from the large end 501, while others are reflected or diffracted by the large end 501 before entering the first resonant cavity 502. Sound waves that directly enter the first resonant cavity 502 or enter the resonant cavity through reflection or diffraction resonate by reflecting back and forth within the first resonant cavity 502, thereby increasing the amplitude of the sound waves. Finally, the sound waves are output through the small end 503 and enter the unique through hole 1007, and are finally captured by the pickup 4 of the positive through hole 1007.

[0052] The first resonant cavity 502 resonates with sound waves at a frequency of 1000Hz, but does not resonate with sound waves of other frequencies, thereby achieving directional enhancement of the sound waves from the mosquito's wing vibrations. Therefore, the sound collector 5 has two functions in gathering and increasing the volume: firstly, through reflection or diffraction at the large end 501, it can gather sound waves that would not normally reach the pickup 4 to the pickup 4, which increases the number of sound waves transmitted to the pickup 4, that is, by concentrating the sound waves, it increases the total number of sound waves entering the first resonant cavity 502;

[0053] Secondly, the sound waves from the mosquito's wing vibrations are resonated through the first resonant cavity 502 to directionally increase the amplitude of the sound waves and thus highlight them. Since the pickup 4 converts sound wave signals into electrical signals by receiving the vibrations of sound waves, increasing the amplitude of the sound waves from the mosquito's wing vibrations can improve the sensitivity of the pickup 4 in capturing sound waves.

[0054] Therefore, the practical significance of setting up the sound collecting tube 5 in the mosquito attractor and killer is that: during the daytime, mosquitoes are not very active, so the number of mosquitoes captured by the mosquito attractor and killer is not high, and the number of wing vibration sound waves in the background noise is relatively small. Through the gathering and resonance effect of the sound collecting tube 5, the number and amplitude of the wing vibration sound waves sent to the pickup 4 can be increased at the same time, thereby improving the sensitivity of the controller 2 in judging the result.

[0055] Current sound wave enhancement structures use concave parabolic structures to concentrate sound waves, focusing the reflected sound waves onto a specific area. However, this concave parabolic structure can only increase the number of sound waves entering that area; it cannot selectively amplify the amplitude of the mosquito wing vibration sound waves. Therefore, the increase in the sensitivity of the pickup 4 in capturing mosquito wing vibration sound waves is limited.

[0056] It is worth mentioning that, as mentioned above, in the mosquito trapping chamber 1002, the proportion and amplitude of the wing-vibration sound waves in the total sound waves that are not concentrated and resonated by the sound collector 5 are lower than those of the sound waves that are concentrated and resonated by the sound collector 5. Therefore, the sound waves that are not concentrated and resonated by the sound collector 5 can be considered noise relative to the sound waves that are concentrated and resonated by the sound collector 5. The sound waves that do not enter the sound collector 5 are blocked by the solid portion of the mounting plate 1003 and cannot enter the mounting cavity 1001, or a small portion enters the mounting cavity 1001 and their amplitude is significantly weakened, having little impact. Therefore, the mounting plate 1003 also serves to reduce noise.

[0057] like Figure 2 and Figure 4As shown, the electric mosquito device 6 is a ring-shaped electric grid. An insulating ceramic terminal block 1014 is fixedly installed on the lower surface of the mounting plate 1003. The insulating ceramic terminal block 1014 is an existing material and can be purchased directly. The ring-shaped electric grid is fixedly installed in the mosquito trapping chamber 1002 by being fixedly connected to the insulating ceramic terminal block 1014, which can avoid the risk of electric shock caused by accidental contact by humans and animals. When the ring-shaped electric grid is energized, it can electrocute mosquitoes in the mosquito trapping chamber 1002. Preferably, the ring-shaped electric grid is close to but does not contact the inner wall of the third connecting sleeve 1009, so that the ring-shaped electric grid almost covers the opening 1010. Therefore, mosquitoes entering and exiting the opening 1010 will pass through the area covered by the ring-shaped electric grid, thereby improving the mosquito electrocution rate. Preferably, there are at least two ring-shaped electric grids, which are coaxially stacked together to increase the density of the ring-shaped electric grid, thereby increasing the mosquito electrocution rate.

[0058] like Figure 2 and Figure 3 As shown, the mosquito-attracting component 7 includes water and a container 701 for holding the water, used to simulate a mosquito oviposition environment. Mosquitoes enter the mosquito-catching chamber 1002 through the opening 1010, are attracted by the water to lay their eggs, and are thus trapped inside the shell 1. The container 701 is fixedly installed inside the mosquito-catching chamber 1002, for example, at the bottom of the mosquito-catching part 1008, to keep the container 701 stable and prevent water from spilling. The container 701 can be made of, for example,... Figure 3 The bowl shape shown or as Figure 2 The top is open and cylindrical. Compared to the bowl-shaped container 701, it is narrower and taller. For the same volume of water, the distance between the water surface and the opening 1010 in the cylindrical container 701 is greater than that in the bowl-shaped container. This means that when the mosquito attractor shakes slightly in windy weather, the water inside the cylindrical container 701 is less likely to spill out compared to extreme weather conditions such as typhoons. Preferably, lactic acid with a distinctive odor can be added to the water to create a lactic acid solution with a lactic acid odor. Because it resembles the smell of human sweat, the lactic acid odor is attractive to mosquitoes. The volatile lactic acid escapes from the opening 1010 and diffuses outwards from the shell 1, forming a near-circular mosquito-attracting area centered on the shell 1. Mosquitoes flying into the mosquito-attracting area are lured into the shell 1 by the lactic acid odor, thus increasing the mosquito-catching area of ​​a single mosquito attractor.

[0059] like Figure 9As shown, the microphone 4, controller 2, and electric mosquito device 6 are powered by the same power supply 3. The microphone 4 converts the sound wave vibration signal into an electrical signal and inputs the electrical signal into the controller 2. The controller 2 detects a characteristic frequency sound wave from the received electrical signal—this characteristic frequency is twice the wing vibration frequency of Aedes albopictus, which can be set to 1000Hz—indicating that there are mosquitoes in the mosquito trapping chamber 1002. The controller 2 then outputs a power-on command to the electric mosquito device 6, which is then powered on to electrocute the mosquitoes temporarily trapped in the mosquito trapping chamber 1002. If no characteristic frequency sound wave is detected, it means there are no mosquitoes in the mosquito trapping chamber 1002, and the controller 2 does not output a command, so the electric mosquito device 6 is not powered on. At the same time, the controller 2 has a built-in delay shutdown program. After the power-on command is issued, the delay shutdown program starts timing. After the set time is reached, the delay shutdown program ends timing, and the controller 2 outputs a power-off command to the electric mosquito device 6, thus de-energizing the power grid. The real-time switching on and off of the power grid saves electricity and, more importantly, eliminates the need for constant power supply 3, thus improving safety. Controller 2 can be an MCU (Microcontroller Unit), microphone 4 can be a microphone, and power supply 3 can be a battery. The MCU, microphone, and battery can all be purchased from existing products. The battery directly powers the microphone and MCU via a circuit connection. A transformer connects the battery to the electric mosquito device 6, ensuring a low-voltage output from the battery while providing a high-voltage power grid. Preferably, controller 2 features NB-IoT communication capabilities, allowing it to connect to a remote server via a network to report mosquito identification information and the number of electric mosquito strikes in real time, while maintaining extremely low power consumption in standby mode.

[0060] like Figure 7 As shown, in some embodiments, the sound collecting cylinder 5 includes a first resonant wall 504 and a second resonant wall 505, both of which are horn-shaped. The second resonant wall 505 is coaxially sleeved on the first resonant wall 504 to form a double-layer structure. A gap is maintained between the first resonant wall 504 and the second resonant wall 505 to form a second resonant cavity 506. During each reflection, the sound waves inside the first resonant cavity 502 lose some energy. This lost energy is transferred to the second resonant cavity 506 through the first resonant wall 504, causing the air inside the second resonant cavity 506 to vibrate. The vibration of the air inside the second resonant cavity 506 can also return some energy to the first resonant cavity 502 through the first resonant wall 504. Therefore, the second resonant cavity 506 can reduce the energy loss of the sound waves inside the first resonant cavity 502. Since the sound wave energy is positively correlated with the amplitude, setting the second resonant cavity 506 is beneficial to increasing the amplitude of the sound waves inside the resonant cavity, thereby improving the sensitivity of the pickup 4 in capturing sound waves.

[0061] The first resonant wall 504 and the second resonant wall 505 are connected at the large end 501 by an annular plate 508, thus sealing the second resonant cavity 506 at the large end 501 to prevent energy from escaping from the end of the second resonant cavity 506. Since the area at the small end 503 of the second resonant cavity 506 is small, the energy loss in this part is almost negligible. Therefore, the small end 503 of the second resonant cavity 506 can be open or closed, with the closed state being preferred.

[0062] like Figure 8 As shown, preferably, the surface of the first resonant wall 504 facing the second resonant wall 505 has a plurality of honeycomb-shaped micro-pits 507, and the plurality of micro-pits 507 are arrayed on the surface of the housing 1 to reduce low-frequency noise. The background noise is low-frequency noise, so noise reduction is mainly used to remove the background noise. In addition, after the background noise is reduced by the honeycomb-shaped micro-pits 507, and then the first resonant cavity 502 amplifies and enriches the sound waves after the background noise is reduced, the proportion of the wing vibration sound waves in the total number of sound waves can be amplified geometrically, and the sensitivity of the pickup 4 to capture sound waves is increased geometrically.

[0063] like Figure 2 As shown, in some embodiments, the container 701 is fixedly installed at the bottom of the mosquito trapping unit 1008, and the large end 501 of the sound collecting tube 5 faces the opening of the container 701. The mosquito attracting component 7 is the area with the highest mosquito density inside the shell 1, and the density of wing vibration sound waves is the highest; therefore, when the large end 501 of the sound collecting tube 5 faces the mosquito attracting component 7, the proportion of wing vibration sound waves in the total sound waves is larger.

[0064] like Figure 4 As shown, in some embodiments, a shielding cover 9 made of sound-insulating material is also included. The shielding cover 9 covers the outer periphery of the housing 1 to shield background noise. The shielding cover 9 can be a sound-insulating blanket or a sound-insulating board. By absorbing or reflecting background noise, the shielding cover 9 can reduce the background noise entering the housing 1, thereby reducing the proportion of background noise entering the sound collecting tube 5, and thus improving the accuracy of the controller 2 in capturing characteristic frequencies. Preferably, the shielding cover 9 covers the opening 1010 to shield the noise sound waves entering the mosquito trapping chamber 1002 through the opening 1010; at the same time, the shielding cover 9 is kept at a certain distance from the opening 1010 to avoid blocking mosquitoes from entering the mosquito trapping chamber 1002.

[0065] In some embodiments, the housing 1 has a feeding port 10 for adding mosquito attractant to the container 701. The feeding port 10 is a through hole 1007 penetrating the housing 1 for feeding mosquito attractant into the housing 1. The feeding port 10 is very small relative to the opening 1010, and the number of mosquitoes escaping from the feeding port 10 is very small and negligible.

[0066] In some embodiments, the top shield 1005 protrudes outward along the outer periphery of the housing 1 to form a shielding edge, which is located above the opening 1010, thus preventing sunlight or rainwater from entering the interior of the housing 1 through the opening 1010. The top shield 1005 is spherical, and the spherical top shield 1005 slopes from high to low from the center to the shielding edge, so that rainwater can fall off in time and water can be prevented from accumulating on the spherical top shield 1005.

[0067] In some embodiments, a deep-buried pile 8, which can be buried underground, is fixedly connected to the housing 1 to support the housing 1. The deep-buried pile 8 is preferably made of plastic, which will not rust and has a longer service life.

[0068] Example 2

[0069] like Figure 9 As shown, this embodiment provides a mosquito sensing method, which includes the following steps:

[0070] Step 1: Convert background noise and mosquito wing vibration sound waves into electrical signals by setting up microphone 4.

[0071] Step 2: The microphone 4 transmits an electrical signal to the controller 2 via an electrical connection. The controller 2 receives the electrical signal from Step 1 and extracts the sound waves at the frequency of mosquito wing flapping. The specific extraction method includes the following steps:

[0072] S1: Controller 2 uses a built-in FFT algorithm to convert audio signals into frequency domain signals;

[0073] S2: Controller 2 uses the built-in MFCC algorithm to model audio data at different frequencies to extract the frequency features of the audio signal;

[0074] S3: Controller 2 uses a built-in DNN algorithm to build and train the model;

[0075] S4: The mature model obtained from S3 is used to capture the sound waves at the frequency of mosquito wing flapping, i.e., 1000Hz sound waves; if captured, the presence of mosquitoes is sensed; if not captured, the presence of mosquitoes is not sensed.

[0076] In some other embodiments, before step one, the background noise and the mosquito wing vibration sound waves are successively denoised and the mosquito wing vibration sound waves are resonated by setting a horn-shaped sound collector 5 with a natural frequency of 1000Hz, so as to increase the proportion of mosquito wing vibration sound waves in the electrical signal transmitted to the controller 2, thereby improving the sensitivity of the mosquito sensing results.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mosquito attractant and killer, characterized in that, The mosquito attractant and killer includes: The mosquito trapping module includes a housing (1) and a mosquito attracting component (7); the housing (1) includes an installation cavity (1001) and a mosquito trapping cavity (1002), and the housing (1) has an opening (1010) for mosquitoes to enter the mosquito trapping cavity (1002), and the mosquito attracting component (7) is disposed in the mosquito trapping cavity (1002); The mosquito sensing module includes a horn-shaped sound collector (5) with a horn-shaped first resonant cavity (502), a microphone (4), and a controller (2) electrically connected to the microphone (4); the resonant frequency of the first resonant cavity (502) is the wing vibration frequency of the mosquito; the controller (2) and the microphone (4) are both installed in the mounting cavity (1001), and the sound collector (5) is installed in the mosquito trapping cavity (1002); Electric mosquito device (6), which is fixedly installed in the mosquito trapping chamber (1002) and electrically connected to the controller (2); The sound collecting tube (5) has a double-layer structure, including a horn-shaped first resonant wall (504) and a horn-shaped second resonant wall (505); the second resonant wall (505) is coaxially sleeved on the first resonant wall (504) and a gap is maintained between the second resonant wall (505) and the first resonant wall (504) to form a second resonant cavity (506); the second resonant wall (505) and the first resonant wall (504) are connected at the large end (501) by an annular plate (508) so that the second resonant cavity (506) is closed at the large end (501); The mounting cavity (1001) is located above the mosquito trapping cavity (1002); the mounting cavity (1001) and the mosquito trapping cavity (1002) are separated by a mounting plate (1003), and the mounting plate (1003) has a unique through hole (1007) connecting the mounting cavity (1001) and the mosquito trapping cavity (1002). The mounting cavity (1001) is fixedly connected to a waterproof plate (1013) that maintains a certain distance from the mounting plate (1003); a controller (2) is fixedly mounted on the waterproof plate (1013) and a microphone (4) is fixedly mounted on the lower surface of the waterproof plate (1013) to maintain a certain distance between the controller (2) and the microphone (4) and the mounting plate (1003); the pickup part of the microphone (4) is directly opposite the through hole (1007). The mounting plate (1003) is located on one side of the mosquito trapping chamber (1002) and is fixedly connected to the small end (503) of the sound collector (5). The electric mosquito device (6) is also fixedly installed on the side of the mounting plate (1003) located on the mosquito trapping chamber (1002); the small end (503) of the sound collector (5) covers the through hole (1007).

2. The mosquito attractant and killer according to claim 1, characterized in that, The first resonant wall (504) has micro-pits (507) arrayed on the side facing the second resonant wall (505).

3. The mosquito attractant and killer according to claim 1, characterized in that, It also includes a shield (9) made of sound-insulating material for shielding background noise; the shield (9) covers the outside of the housing (1).

4. The mosquito attractant and killer according to claim 1, characterized in that, The controller (2) is a controller (2) with NB-IoT communication function, which reports mosquito identification information and the number of times mosquitoes are electrocuted to the server in real time.

5. A mosquito attractant and killer according to claim 1, characterized in that, The mounting cavity (1001) includes a spherical shielding top plate (1005), which protrudes outward along the outer periphery of the housing (1) to form a shielding edge; the spherical shielding top plate (1005) is high to low from the center to the periphery, and is used to prevent sunlight or rainwater from entering the interior of the housing (1) through the opening (1010).

6. The mosquito attractant and killer according to claim 1, characterized in that, The bottom of the shell (1) is fixedly connected to a deep buried pile (8) buried underground for supporting and fixing the shell (1).

7. A mosquito sensing method, characterized in that, According to any one of claims 1-6, the mosquito attractor and killer, the sensing method includes the following steps: Step 1: Convert both background noise and mosquito wing vibration sound waves into electrical signals; Step 2: The controller (2) receives the electrical signal from Step 1 and extracts the sound waves of the mosquito's wing-beating frequency from it.

8. The mosquito sensing method according to claim 7, characterized in that, Before step one is performed, the background noise and the mosquito wing vibration sound waves are successively subjected to noise reduction and mosquito wing vibration sound wave resonance processing.

Images