Ultrasonic mosquito catching and killing device and mosquito catching and killing method thereof

Abstract

The present invention discloses an ultrasonic mosquito catching and killing device and method. The ultrasonic mosquito catching and killing device comprises a driving device, an ultrasonic transducer group, a photoelectric sensor, and a laser. The driving device drives the ultrasonic transducer group and the laser. The ultrasonic transducer groups are arranged in an array facing each other and emit ultrasonic waves in opposite directions, generating a standing wave sound field to form an invisible net. The photoelectric sensor and the laser are located above the invisible net and are used to detect whether mosquitoes are captured and kill mosquitoes, respectively. By changing the ultrasonic frequency of one side of the ultrasonic transducer group, the sound pressure node in the invisible net is continuously moved toward the direction of the ultrasonic transducer group with a lower frequency and passes through the emission path of the laser. The present invention uses the ultrasonic waves generated by the ultrasonic transducer group to form an invisible net, capture mosquitoes that fly into the invisible net, and draw them into the emission path of the laser. The laser light emitted by the laser kills the mosquitoes without making any noise and without affecting people's daily life and work.

Description

Technical Field

[0001] The present invention relates to the technical field of mosquito prevention, in particular to an ultrasonic mosquito catching and killing device and a mosquito catching and killing method thereof. Background Art

[0002] There are two main methods for household mosquito control: physical and chemical. Physical mosquito control devices include mosquito lamps and handheld electric mosquito swatters, which primarily use electric shock to kill mosquitoes. Mosquito lamps primarily exploit the mosquito's tendency to attract light, attracting them and then killing them with electric shock. Handheld electric mosquito swatters require users to touch the mosquitoes, which consumes physical energy, is inefficient, and produces a loud noise. Chemical mosquito control methods such as mosquito coils or electric mosquito liquids have restrictions on the amount of mosquito repellent (mosquito killer) added, which can have certain impacts on human health, making it difficult to balance human health with mosquito repellent and mosquito killing effectiveness. Summary of the Invention

[0003] The present invention aims to provide an ultrasonic mosquito catching and killing device and method, which uses ultrasonic waves generated by an ultrasonic transducer group to form an invisible net, captures mosquitoes that fly into the invisible net, and pulls them into the emission path of a laser. The laser emitted by the laser kills the mosquitoes without making any noise and without affecting people's daily life and work, thus solving the shortcomings of the mosquito killing methods in the above-mentioned prior art.

[0004] To achieve the above-mentioned objectives, the present invention provides a technical solution: an ultrasonic mosquito catching and killing device, comprising a driving device, an ultrasonic transducer group, a photoelectric sensor and a laser. The driving device drives the ultrasonic transducer group and the laser. The ultrasonic transducer groups are arranged in an array facing each other and emit ultrasonic waves with opposite propagation directions, generating a standing wave sound field to form an invisible net. The photoelectric sensor and the laser are arranged above the invisible net. By changing the ultrasonic frequency of the ultrasonic transducer group on one side, the sound pressure nodes in the invisible net are continuously moved toward the ultrasonic transducer group with a lower frequency and pass through the emission path of the laser.

[0005] The present invention adopts the above-mentioned technical solution. A driving device drives opposing arrays of ultrasonic transducers to emit ultrasonic waves. The ultrasonic waves propagate in opposite directions, generating a standing wave sound field that forms an invisible net. When mosquitoes fly into the invisible net, they are trapped at a sound pressure node and detected by a photoelectric sensor. By changing the ultrasonic frequency of one side of the ultrasonic transducer group, the sound pressure node in the invisible net is continuously moved toward the lower-frequency ultrasonic transducer group. The trapped mosquitoes are drawn into the laser emission path by the sound pressure node and killed. Ultrasonic waves are not perceptible to the human ear. The present invention kills mosquitoes without producing any sound, without affecting people's normal lives and work, and can achieve both mosquito control and human health. It has the advantages of high efficiency, environmental protection, and convenience.

[0006] The driving device of the above-mentioned ultrasonic mosquito catching and killing device includes a control circuit, an ultrasonic driving circuit and a laser driving circuit. The control circuit drives the ultrasonic transducer group and the laser through the ultrasonic driving circuit and the laser driving circuit respectively.

[0007] In the ultrasonic mosquito trapping and killing device, a photoelectric sensor is connected to a drive unit. When the photoelectric sensor detects a mosquito entering the invisible net and being captured, it sends a signal to the control circuit in the drive unit. In response, the control circuit changes the ultrasonic frequency of one ultrasonic transducer group, causing the sound pressure node to pull the mosquito toward the low-frequency ultrasonic transducer group. The laser then emits laser light, killing any mosquitoes that pass through its laser emission path.

[0008] In the ultrasonic mosquito trapping and killing device, two opposing ultrasonic transducer groups generate ultrasonic waves with the same amplitude, frequency, and opposite propagation directions, forming a standing wave sound field in space. A photoelectric sensor detects mosquitoes flying into the invisible net and feeds back information to a driving device, which then changes the ultrasonic frequency of one side of the ultrasonic transducer group and drives the laser to emit laser light.

[0009] The present invention also provides another technical solution: an ultrasonic mosquito catching and killing method, which uses the above-mentioned ultrasonic mosquito catching and killing device to catch and kill mosquitoes, comprising:

[0010] (1) Using an array of ultrasonic transducers arranged in opposite directions to transmit ultrasonic waves, a standing wave sound field is generated to form an invisible net. Mosquitoes fly into the vicinity of the sound pressure node in the invisible net and are pulled by the sound waves to sway to the sound pressure node, thereby capturing the mosquitoes.

[0011] (2) The photoelectric sensor recognizes that the mosquito is captured and feeds back to the driving device. The driving device changes the ultrasonic frequency of the ultrasonic transducer group on one side, and the sound pressure node moves toward the ultrasonic transducer group on the low-frequency side, and drives the laser to kill the mosquitoes passing through its emission path.

[0012] The ultrasonic mosquito catching and killing method of the present invention comprises two opposing ultrasonic transducer groups emitting ultrasonic waves with opposite propagation directions, forming a standing wave sound field in space. In the sound field, positions with maximum and minimum sound pressures alternate, forming an invisible net with multiple sound pressure nodes. When mosquitoes fly into the vicinity of a sound pressure node, they are pulled by the sound waves and sway. When the mosquitoes sway to the sound pressure node, the pulling forces of the sound waves on the mosquitoes cancel each other out, thereby binding the mosquitoes that have flown into the net to the sound pressure node, achieving the capture of the mosquitoes. When a photoelectric sensor recognizes that a mosquito has been captured, a drive device controls the frequency of the ultrasonic waves generated by one of the ultrasonic transducer groups to reduce its frequency. The frequencies of the ultrasonic waves emitted by the two ultrasonic transducer groups are different, causing the sound pressure node to pull the mosquitoes toward the ultrasonic transducer group emitting the lower-frequency ultrasonic wave. Finally, the bound mosquitoes are pulled into the mosquito killing zone formed by the laser emission path of the laser, and the mosquitoes are killed.

[0013] In the ultrasonic mosquito catching and killing method described above, in step (1), the ultrasonic transducer groups on both sides generate ultrasonic waves of the same amplitude and frequency, but in opposite directions of propagation, creating a standing wave sound field in space and forming an invisible net. Mosquitoes fly into the invisible net and are captured by sound pressure nodes. The positions of maximum sound pressure alternate with the positions of minimum sound pressure, forming multiple sound pressure nodes. When mosquitoes fly into the invisible net, they are pulled by the sound waves and shaken. The mosquitoes are eventually bound to the sound pressure nodes and captured by the invisible net.

[0014] In the above-mentioned ultrasonic mosquito catching and killing method, in step (2), the photoelectric sensor detects that the mosquito is captured, and by changing the ultrasonic frequency generated by the ultrasonic transducer group on one side, the sound pressure node moves toward the ultrasonic transducer group on the low-frequency side, thereby drawing the mosquito to the emission path of the laser, and the laser emits a laser to kill the mosquito.

[0015] In the ultrasonic mosquito-catching and killing method described above, steps (1) and (2) are performed simultaneously. The ultrasonic transducer group emits ultrasonic waves of the same amplitude, different frequencies, and opposite propagation directions, causing the sound pressure nodes in the invisible net to continuously move toward the lower-frequency ultrasonic transducer group. The trapped mosquitoes are drawn into the laser emission path by the sound pressure nodes and are killed. In this solution, the simultaneous capture and traction of mosquitoes is suitable for scenarios with low air flow and minimal airflow interference.

[0016] The present invention achieves the following beneficial effects: Because ultrasonic waves are imperceptible to the human ear, the hidden laser mosquito killer device produces no noise during use, thus preventing disruption to people's daily lives and work. The net formed is invisible, does not block occupied space, and does not affect air circulation and lighting. Small objects, such as mosquitoes, are easily trapped, while other objects can pass freely. The mosquito killer device can be installed in walkways, doorways, or bedside areas to capture and kill mosquitoes, offering safety, efficiency, environmental friendliness, and convenience. The present invention utilizes ultrasonic levitation and traction technology to capture and kill mosquitoes, without disrupting the living environment. It balances human health with mosquito repellent and killing effects, addressing the limitations of existing mosquito killer technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of an invisible net formed by ultrasound according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the formation of sound pressure nodes in ultrasound according to an embodiment of the present invention;

[0019] Figure 3 1 is a schematic structural diagram of a circuit control portion of an embodiment of the present invention;

[0020] Figure 4 The present invention is a flowchart of an ultrasonic mosquito catching and killing method according to an embodiment of the present invention.

[0021] Explanation of the reference numerals: driving device 1, ultrasonic transducer group 2a, laser 3, photoelectric sensor 4, ultrasonic transducer 2, control circuit 11, ultrasonic driving circuit 12, laser driving circuit 13, invisible net a, sound pressure node a1. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Reference Figure 1 、 Figure 2 and Figure 3 As shown, an ultrasonic mosquito catching and killing device includes a driving device 1, an ultrasonic transducer group 2a, and a laser 3. The driving device 1 drives the ultrasonic transducer group 2a and the laser 3. The ultrasonic transducer groups 2a are arranged in an array facing each other and emit ultrasonic waves with opposite propagation directions, generating a standing wave sound field to form an invisible net a. The invisible net a has multiple sound pressure nodes a1. The laser 3 is located above the invisible net a. By changing the ultrasonic frequency of the ultrasonic transducer group 2a on one side, the sound pressure node a1 is continuously moved toward the ultrasonic transducer group 2a with a lower frequency and passes through the emission path of the laser 3.

[0024] The ultrasonic transducer group 2a is composed of a plurality of ultrasonic transducers 2. The ultrasonic waves emitted by each ultrasonic transducer 2 propagate toward the opposite ultrasonic transducer 2. The ultrasonic waves propagating in opposite directions form standing waves in space, further forming a standing wave sound field.

[0025] The driving device 1 includes a control circuit 11 , an ultrasonic driving circuit 12 and a laser driving circuit 13 . The control circuit 11 drives the ultrasonic transducer group 2 a and the laser 3 through the ultrasonic driving circuit 12 and the laser driving circuit 13 .

[0026] A photoelectric sensor 4 is provided above the invisible net a, and the photoelectric sensor 4 is connected to the driving device 1 .

[0027] The ultrasonic transducer groups 2a arranged in opposite directions generate ultrasonic waves with the same amplitude, frequency and opposite propagation directions, forming a standing wave sound field in space. The photoelectric sensor 4 detects mosquitoes flying into the invisible net a and feeds back the information to the driving device 1. The driving device 1 changes the ultrasonic frequency of one side of the ultrasonic transducer group 2a and drives the laser 3 to emit laser light.

[0028] like Figure 4 As shown, this embodiment also discloses an ultrasonic mosquito catching and killing method, which uses the above-mentioned ultrasonic mosquito catching and killing device to catch and kill mosquitoes, including:

[0029] (1) Using the ultrasonic transducer groups 2a arranged in an array facing each other to transmit ultrasonic waves in opposite directions, a standing wave sound field is generated in space to form an invisible net a. Mosquitoes fly into the invisible net a near the sound pressure node a1 and are pulled by the sound waves to sway to the sound pressure node a1, thereby capturing the mosquitoes.

[0030] (2) The photoelectric sensor 4 recognizes that the mosquito is captured and feeds back to the driving device 1. The driving device 1 changes the ultrasonic frequency generated by the ultrasonic transducer group 2a on one side, and the sound pressure node a1 moves toward the ultrasonic transducer group 2a on the low-frequency side, and drives the laser 3 to kill the mosquitoes passing through its emission path.

[0031] In step (1), the ultrasonic transducer groups 2a arranged in opposite directions generate ultrasonic waves with the same amplitude, frequency and opposite propagation directions, forming an invisible net a with multiple sound pressure nodes a1 in space. Mosquitoes fly into the invisible net a and are captured by the sound pressure nodes a1.

[0032] In step (2), the photoelectric sensor 4 detects that the mosquito has been captured, and by changing the ultrasonic frequency generated by the ultrasonic transducer group 2a on one side, the sound pressure node a1 moves toward the ultrasonic transducer group 2a on the low-frequency side, thereby pulling the mosquito to the emission path passing through the laser 3, and the laser 3 emits a laser to kill the mosquito.

[0033] In other embodiments, step (1) is performed simultaneously with step 2, and the ultrasonic transducer group 2a emits ultrasonic waves with the same amplitude, different frequencies, and opposite propagation directions to form multiple sound pressure nodes a1 in space, so that the sound pressure nodes a1 continuously move toward the ultrasonic transducer group 2a on the low-frequency side. When mosquitoes fly into the invisible net a, they are drawn to the laser emission path of the laser 3 and killed.

[0034] In a specific implementation of the present invention, one solution is to arrange ultrasonic transducers 2 on the left and right sides of the frame facing each other, with 50 ultrasonic transducers on each side. In other embodiments, other numbers of ultrasonic transducers 2 can be provided, depending on the actual situation. Multiple ultrasonic transducers 2 form an ultrasonic transducer group 2a.

[0035] The operating frequency of the ultrasonic transducer 2 is initially set to 40 kHz, and foam particles are placed in the air near the middle of both sides of the frame. By fine-tuning the operating frequency of the ultrasonic transducers 2 on both sides simultaneously, the foam particles are suspended and a stable standing wave is generated.

[0036] A reflective photoelectric sensor 4 is positioned above an invisible net a formed by counter-propagating ultrasonic waves to detect whether any mosquitoes are suspended and trapped within the net a. Upon detecting a mosquito trapped within the net a, the photoelectric sensor 4 sends a signal to the control circuit 11. This signal drives the ultrasonic driver circuit 12 to fine-tune the operating frequency of the left ultrasonic transducer group 2a downward, reducing the frequency of the ultrasonic waves it emits. The mosquito, attracted by the leftward shifting sound pressure node a1, moves toward the left ultrasonic transducer group 2a. Simultaneously, the control circuit 11 activates the laser driver circuit 13 to activate the laser 3, killing the attracted mosquito.

[0037] In this solution, the mosquitoes are first captured and then drawn into the laser emission path of the laser 3 to be killed.

[0038] In the specific implementation of the present invention, another technical solution is: ultrasonic transducers 2 are arranged facing each other on the left and right sides of the frame, with 30 on each side. In other embodiments, the ultrasonic transducers 2 can also be set to other numbers, which should be used according to the actual scenario. Multiple ultrasonic transducers 2 form an ultrasonic transducer group 2a.

[0039] Initially set the operating frequency of ultrasonic transducer 2 to 40 kHz. Place foam particles in the air near the center of each side of the frame. Simultaneously fine-tune the operating frequency of ultrasonic transducers 2 on both sides to suspend the foam particles, generating a stable standing wave. Then, fine-tune the operating frequency of the left ultrasonic transducer 2 downward to pull the foam particles to the left.

[0040] A reflective photoelectric sensor 4 detects whether a mosquito has been captured. When a captured mosquito is detected, the photoelectric sensor 4 sends a signal to the control circuit 11, which controls the laser drive circuit 13 to turn on the laser 3, thereby killing the mosquito. This solution simultaneously captures and pulls the mosquito.

[0041] The present invention utilizes ultrasonic levitation and traction technology to achieve mosquito catching and killing. When the ultrasonic transducer groups 2a arranged in opposite directions emit ultrasonic waves, the ultrasonic waves with the same amplitude, the same initial frequency, and opposite propagation directions will form a stable standing wave in space, forming a standing wave sound field. In the sound field, the position with the maximum sound pressure and the position with the minimum sound pressure appear alternately, forming an invisible net a with multiple sound pressure nodes a1. When mosquitoes fly near the sound pressure node a1, they will be pulled by the sound waves and shake. When the mosquitoes shake to the sound pressure node a1, the sound wave traction forces on the mosquitoes cancel each other out, so that the mosquitoes that fly into the invisible net are bound to the sound pressure node a1, thereby achieving the capture of the mosquitoes.

[0042] Then, the operating frequency of the ultrasonic transducer group 2a on one side is changed to reduce the frequency of the ultrasonic waves it emits, so that the sound pressure node a1 moves toward the ultrasonic transducer group 2a on the low-frequency side, and the bound mosquitoes are pulled into the laser mosquito killing area to kill them.

[0043] In summary, the present invention has been made into actual samples and tested for multiple uses as described in the specification and the illustrations. From the results of the use tests, it can be proved that the present invention can achieve its intended purpose and its practical value is beyond doubt. The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field can, without departing from the scope of the technical features of the present invention, make equivalent embodiments by making partial changes or modifications to the technical content disclosed by the present invention and without departing from the technical features of the present invention, and all of them still fall within the scope of the technical features of the present invention.

Claims

1. An ultrasonic mosquito catching and killing device, characterized by: The invention comprises a driving device (1), two ultrasonic transducer groups (2a), a photoelectric sensor (4) and a laser (3). The driving device (1) drives the ultrasonic transducer group (2a) and the laser (3). The two ultrasonic transducer groups (2a) are arranged in an array facing each other and emit ultrasonic waves with opposite propagation directions, thereby generating a standing wave sound field to form an invisible net (a). The photoelectric sensor (4) and the laser (3) are arranged above the invisible net (a) and are used to detect whether mosquitoes are captured and kill mosquitoes respectively. By changing the ultrasonic frequency of one side of the ultrasonic transducer group (2a), the sound pressure node (a1) in the invisible net is continuously moved toward the ultrasonic transducer group (2a) with a lower frequency and passes through the emission path of the laser (3).

2. The ultrasonic mosquito catching and killing device according to claim 1, characterized in that: The driving device (1) comprises a control circuit (11), an ultrasonic driving circuit (12) and a laser driving circuit (13). The control circuit (11) drives the ultrasonic transducer group (2a) and the laser (3) through the ultrasonic driving circuit (12) and the laser driving circuit (13).

3. The ultrasonic mosquito catching and killing device according to claim 1 or 2, characterized in that: The photoelectric sensor (4) is connected to the driving device (1).

4. The ultrasonic mosquito catching and killing device according to claim 1, characterized in that: Ultrasonic transducer groups (2a) arranged opposite to each other generate ultrasonic waves with the same amplitude, frequency and opposite propagation directions to form a standing wave sound field in space. A photoelectric sensor (4) detects mosquitoes flying into the invisible net (a) and feeds back information to a driving device (1). The driving device (1) changes the ultrasonic frequency of the ultrasonic transducer group (2a) on one side and drives the laser (3) to emit laser light.

5. An ultrasonic mosquito catching and killing method, characterized in that: The ultrasonic mosquito catching and killing device according to any one of claims 1 to 4 is used to catch and kill mosquitoes, comprising: (1) Utilizing ultrasonic transducer groups (2a) arranged in an array facing each other to emit ultrasonic waves in opposite propagation directions, a standing wave sound field is generated in space to form an invisible net (a). Mosquitoes fly into the vicinity of a sound pressure node (a1) in the invisible net (a) and are pulled by the sound waves to sway to the sound pressure node (a1), thereby achieving mosquito capture. (2) The photoelectric sensor (4) recognizes that the mosquito is captured and feeds back to the driving device (1). The driving device (1) changes the ultrasonic frequency of the ultrasonic transducer group (2a) on one side, so that the sound pressure node (a1) moves toward the ultrasonic transducer group (2a) on the low-frequency side, and drives the laser (3) to kill the mosquitoes passing through its emission path.

6. The ultrasonic mosquito catching and killing method according to claim 5, characterized in that: In step (1), the ultrasonic transducer group (2a) generates ultrasonic waves with the same amplitude, the same frequency, and opposite propagation directions, generating a standing wave sound field in space to form an invisible net (a). Mosquitoes fly into the invisible net (a) and are captured by the sound pressure node (a1) in the invisible net (a).

7. The ultrasonic mosquito catching and killing method according to claim 5, characterized in that: In step (2), the photoelectric sensor (4) detects that a mosquito has been captured, and by changing the ultrasonic frequency generated by the ultrasonic transducer group (2a) on one side, the sound pressure node (a1) moves toward the ultrasonic transducer group (2a) on the low-frequency side, thereby pulling the mosquito to the emission path of the laser (3), and the laser (3) emits laser light to kill the mosquito.

8. The ultrasonic mosquito catching and killing method according to claim 5, characterized in that: Step (1) and step (2) are performed simultaneously. The ultrasonic transducer group (2a) emits ultrasonic waves with the same amplitude, different frequencies, and opposite propagation directions to generate a sound pressure node (a1) in space, so that the sound pressure node (a1) continuously moves toward the ultrasonic transducer group (2a) on the low-frequency side. When mosquitoes fly into the invisible net (a), they are detected by the photoelectric sensor (4) and are drawn by the sound pressure node (a1) into the laser emission path of the laser (3) to be killed.

Images