Composite sound wave band system for bidirectionally rushing male and female mosquitoes to trap and kill mosquitoes

Abstract

The invention relates to the technical field of public health prevention and control, in particular to a composite sound wave band male and female mosquito bidirectional-rushing mosquito trapping and killing system and method.The composite sound wave band male and female mosquito bidirectional-rushing mosquito trapping and killing system comprises an audio frequency generation module, the audio frequency generation module is configured to generate male mosquito courtship audio frequency with the frequency of 500-800 Hz and female mosquito response audio frequency with the frequency of 200-400 Hz, the audio frequency generation module is arranged in a tennis ball, and the tennis ball is provided with a power grid channel; the power grid channel is electrically connected with the high-voltage power supply module; according to the multi-scene mosquito prevention and control device, the trapping range, the operation energy efficiency and the structure adaptability are all considered, the mosquito density can be efficiently reduced, the use cost is low, and the multi-scene mosquito prevention and control device is suitable for multi-scene mosquito prevention and control.

Description

Technical Field

[0001] This invention relates to the field of public health prevention and control technology, and more specifically, to a system for attracting and killing mosquitoes by combining multiple acoustic bands to both male and female mosquitoes. Background Technology

[0002] Existing mosquito trapping technologies mostly rely on a single mechanism of action, such as using only a single frequency sound wave, chemical attractant, or physical trapping. Among these, sound-based traps are often limited to trapping only male or female mosquitoes, for example, simulating only the mating calls of male mosquitoes or the flight sounds of female mosquitoes. This makes it difficult to trap both male and female mosquitoes, allowing female mosquitoes to reproduce normally and significantly limiting the control effect. While some devices are equipped with an electric grid killing function, they often use continuous power supply or simple infrared detection triggering modes. The former wastes energy, while the latter is susceptible to environmental interference, leading to false triggering or missed triggering, further reducing the trapping efficiency. Furthermore, the channel structure design of some devices is unreasonable; excessively large apertures allow mosquitoes to escape, while excessively small apertures hinder entry. The lack of structural optimization targeting mosquito behavior further restricts the trapping effect. Summary of the Invention

[0003] In view of this, the present invention addresses the shortcomings of the prior art by proposing a combined acoustic band bidirectional attraction and killing system for male and female mosquitoes, aiming to solve at least one of the problems mentioned in the background art.

[0004] This invention provides a composite acoustic band bidirectional attraction and killing system for male and female mosquitoes, comprising: an acoustic frequency generation module configured to generate mating acoustic frequencies of male mosquitoes at 500-800Hz and response acoustic frequencies of female mosquitoes at 200-400Hz; the acoustic frequency generation module is disposed within a tennis ball, the tennis ball being provided with an electric grid channel, the electric grid channel being electrically connected to a high-voltage power supply module; The control module is electrically connected to the audio frequency generation module and the high-voltage power supply module, respectively.

[0005] In some embodiments, the sound generation module includes a high-frequency sound generation unit and a low-frequency sound generation unit. The high-frequency sound generation unit generates a continuous single-frequency vibration sound of 500-800Hz to simulate the mating call of male mosquitoes. The low-frequency sound unit generates intermittent short chirps at 200-400Hz to simulate the passive response sound of female mosquitoes.

[0006] In some embodiments, the control module has a built-in time threshold setting unit. When the duration of the male mosquito courtship sound frequency output by the sound frequency generation module reaches a preset time threshold, the sound frequency switching is automatically triggered, and the output sound frequency is switched from 500-800Hz to 200-400Hz.

[0007] In some embodiments, a mosquito response detection module is further included. The mosquito response detection module is electrically connected to the control module. The mosquito response detection module is used to detect 200-400Hz sound frequencies in the environment. When a 200-400Hz sound frequency is detected, the mosquito response detection module sends an electrical signal to the control module, and the control module controls the sound frequency generation module to switch the sound frequency.

[0008] In some embodiments, the aperture of the power grid channel is 0.5-1 mm.

[0009] In some embodiments, when the low-frequency sound unit generates intermittent short whistles of 200-400Hz, the duration of a single sound is 1-3 seconds, and the interval between sounding is 5-10 seconds.

[0010] In some embodiments, a monitoring module is also included, which is electrically connected to the control module. The monitoring module is used to monitor in real time whether mosquitoes enter the opening of the power grid channel. When mosquitoes are detected entering the opening of the power grid channel, the control module controls the high-voltage power supply module to output current to the power grid channel.

[0011] In some embodiments, the control module is configured to determine whether there are mosquitoes at the opening of the power grid channel when the control module controls the high-voltage power supply module to output current to the power grid channel for a time longer than a preset discharge time; When the control module controls the high-voltage power supply module to output current to the power grid channel for a time that is less than or equal to a preset discharge time, the control module continues to control the high-voltage power supply module to output current to the power grid channel.

[0012] In some embodiments, the control module is configured to determine whether there are mosquitoes at the opening of the power grid channel when the control module controls the high-voltage power supply module to output current to the power grid channel for a time longer than a preset discharge time, including: The control module is also configured to continue controlling the high-voltage power supply module to output current to the power grid channel when there are mosquitoes at the opening of the power grid channel; When there are no mosquitoes at the opening of the power grid channel, the control module controls the high-voltage power supply module to stop outputting current to the power grid channel.

[0013] In some embodiments, the power grid channel is inclined downwards and is connected to the tennis ball.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: By generating 500-800Hz male mosquito courtship sounds and 200-400Hz female mosquito response sounds through the sound frequency generation module, it overcomes the limitation of single-sex trapping in existing technologies, attracting both male and female mosquitoes simultaneously. In particular, it reduces the number of female mosquitoes to inhibit mosquito reproduction, thereby reducing the risk of infectious disease transmission at the source and solving the problem of limited control effectiveness in existing devices. The time threshold setting of the control module is linked with the mosquito response detection module, intelligently switching the sound frequency according to a preset duration or mosquito sound frequency signals in the environment to avoid ineffective sound generation. The monitoring module triggers the grid discharge and adjusts the power supply state based on the discharge time, eliminating energy waste from continuous power supply and reducing false triggering and missed triggering caused by environmental interference, balancing energy saving and killing accuracy. The 0.5-1mm aperture design of the grid channel prevents mosquitoes from escaping due to excessively large apertures and prevents entry from being obstructed by excessively small apertures. The downward-sloping structure of the channel, connected to a tennis ball, conforms to the behavioral characteristics of mosquitoes, further improving the mosquito entry and retention rates, and solving the defects of unreasonable channel design in existing devices.

[0015] The above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0016] Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a functional block diagram of the composite acoustic band bidirectional mosquito attraction and killing system provided in an embodiment of the present invention. Figure 2 This is a functional block diagram of a composite acoustic band bidirectional mosquito trapping system for male and female mosquitoes provided in an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] See Figure 1-2 As shown, a composite acoustic band bidirectional mosquito attraction and killing system according to an embodiment of this application includes: The sound frequency generation module is configured to generate mating sound frequencies of male mosquitoes at a frequency of 500-800Hz and response sound frequencies of female mosquitoes at a frequency of 200-400Hz. The sound frequency generation module is disposed inside a tennis ball, which is provided with an electric grid channel, and the electric grid channel is electrically connected to a high-voltage power supply module. The control module is electrically connected to the audio frequency generation module and the high-voltage power supply module, respectively.

[0024] In some specific embodiments, the sound frequency generation module includes a high-frequency sound generation unit and a low-frequency sound generation unit. The high-frequency sound generation unit generates a continuous single-frequency vibration sound of 500-800Hz to simulate the mating call of male mosquitoes. The low-frequency sound unit generates intermittent short chirps at 200-400Hz to simulate the passive response sound of female mosquitoes.

[0025] In some specific embodiments, the control module has a built-in time threshold setting unit. When the duration of the male mosquito courtship sound frequency output by the sound frequency generation module reaches the preset time threshold, the sound frequency switching is automatically triggered, switching the output sound frequency from 500-800Hz to 200-400Hz.

[0026] It should be understood that the high-frequency sound-emitting unit focuses on simulating the courtship behavior of male mosquitoes—in nature, male mosquitoes transmit courtship signals by continuously emitting vibrations at 500-800Hz. Therefore, this unit is set to output a continuous single-frequency vibration (such as 650Hz) to form a stable "male mosquito courtship field." This continuous sound emission mode can attract female mosquitoes from a distance (female mosquitoes have a natural attraction to the courtship sounds of male mosquitoes of the same kind), and at the same time, it will also attract other male mosquitoes (male mosquitoes may approach the sound source due to territorial competition).

[0027] The low-frequency sound unit simulates the passive response of a female mosquito after being attracted—after receiving the courtship call from a male mosquito, the female mosquito responds with intermittent short chirps at 200-400Hz (e.g., 300Hz, each chirp lasting 1-3 seconds with an interval of 5-10 seconds). This intermittent pattern matches the "passive response" behavior of female mosquitoes, which not only strengthens the lingering attraction to mosquitoes that have approached, but also transmits the signal of "female presence" to surrounding male mosquitoes, further enhancing their attraction.

[0028] The time threshold setting unit of the control module is the core of achieving audio-frequency coordination: after the system starts, the high-frequency sound unit is triggered to work first (outputting a continuous sound of 500-800Hz), and at the same time, the timer built into the control module starts timing. When the timer reaches the preset threshold (e.g., 10 minutes, which can be adjusted according to the mosquito density in the environment), the control module automatically sends a switching signal to the audio-frequency generation module, pausing the high-frequency unit and starting the low-frequency unit (outputting intermittent short beeps of 200-400Hz). This "courtship first, response later" timing switch accurately reproduces the interactive logic of male mosquitoes actively courting and female mosquitoes passively responding in nature, forming a two-way attraction closed loop of "male mosquito signal attracts female mosquito → female mosquito signal attracts male mosquito again", which greatly improves the overall trapping efficiency of male and female mosquitoes.

[0029] In some specific embodiments, a mosquito response detection module is also included. The mosquito response detection module is electrically connected to the control module. The mosquito response detection module is used to detect 200-400Hz sound frequencies in the environment. When a 200-400Hz sound frequency is detected, the mosquito response detection module sends an electrical signal to the control module, and the control module controls the sound frequency generation module to switch the sound frequency.

[0030] In some specific embodiments, the aperture of the power grid channel is 0.5-1 mm.

[0031] It should be understood that the mosquito response detection module incorporates a highly sensitive piezoelectric acoustic sensor (or electret acoustic sensor) with its bandwidth precisely limited to 200-400Hz (the characteristic frequency band of wild female mosquito response sounds). It is equipped with a dedicated bandpass filter circuit to filter out common environmental interference signals (such as low-frequency noise from wind (100-180Hz), 50Hz power frequency interference from household appliances, and the 300-3000Hz frequency band of human voices), retaining only the 200-400Hz sound signal to avoid invalid switching due to misjudging non-target sound frequencies. When a wild female mosquito receives the 500-800Hz male mosquito courtship call emitted by the system, it will instinctively emit intermittent short calls at 200-400Hz (1-3 seconds per call, 5-10 seconds interval). Once the sensor detects the sound signal, it first amplifies the weak signal (usually only tens of microvolts) to the volt level through a preamplifier circuit. Then, the signal discrimination unit determines whether it is a "valid response"—for example, whether the signal conforms to the behavioral pattern of female mosquitoes, which is "1-3 seconds continuous, 5-10 seconds interval," excluding instantaneous noise (such as the 250Hz monotone of a water droplet falling). After confirmation, a standardized electrical signal (such as a 5V high level) is generated. After receiving the valid electrical signal, the control module immediately calls the sound frequency switching program: on the one hand, it pauses the high-frequency sound unit (500-800Hz continuous sound) to avoid the superposition of "male mosquito courtship sounds" and "female mosquito response sounds" causing signal confusion; on the other hand, it starts the low-frequency sound unit, outputting intermittent short beeps of 200-400Hz in the same frequency band as wild female mosquitoes (such as matching the 280Hz frequency of wild female mosquitoes, 2 seconds continuous, 8-second interval), simulating the "response" of "artificial female mosquitoes" to wild female mosquitoes. If the detection module continuously captures the response sound of wild female mosquitoes (e.g., multiple detections within 1 minute), the control module will keep the low-frequency sound unit working to form an audio frequency interaction between "wild female mosquitoes and artificial female mosquitoes"; if the target sound frequency is not detected (e.g., wild female mosquitoes leave), the control module will delay for a period of time (e.g., 30 seconds) and then restart the high-frequency sound unit to restore the "male mosquito courtship sound" and wait for new mosquitoes to gather.

[0032] Existing technologies mostly rely on switching sound frequencies at fixed time thresholds (such as switching every 10 minutes), emitting sound according to a preset process regardless of whether there are mosquitoes in the environment, which easily leads to energy waste. The detection module, however, can sense the presence of wild female mosquitoes in real time and switch sound frequencies only when a target is detected, allowing the sound signal to precisely match mosquito behavior. For example, when there are wild female mosquitoes in a certain area, the "artificial female mosquito response sound" will attract more male mosquitoes (male mosquitoes judge mating opportunities by the female mosquito response sound), while simultaneously increasing the willingness of wild female mosquitoes to stay due to the "same-type aggregation signal," thus improving trapping efficiency by more than 30% (calculated based on mosquito aggregation density).

[0033] The response sound of wild female mosquitoes has "signal diffusion". After the detection module captures this signal, the "artificial female mosquito response sound" will transmit the information that "there are female mosquitoes in the area" to the surrounding area, attracting male mosquitoes within a 10-meter range to approach the sound source (far exceeding the 5-meter attraction range of simple high-frequency sound), forming a positive cycle of "wild female mosquitoes → artificial response → male mosquito gathering → more female mosquitoes being attracted", solving the pain point of "narrow attraction range" of traditional devices.

[0034] If there are no wild female mosquitoes in the environment, the system only needs to maintain the high-frequency sound unit (usually only 0.5W) and does not need to start the low-frequency unit; if there are wild female mosquitoes, it can switch as needed. Compared with the fixed mode of "high frequency + low frequency working alternately", the daily energy consumption can be reduced by 20%-25%, which is especially suitable for outdoor long-term battery life scenarios (such as garden devices using battery power).

[0035] If the aperture is >1mm (e.g., 1.5mm): Mosquitoes with a thorax and back width (1.2-1.8mm) can easily pass through. Upon entering and discovering the danger of the electric grid, they can quickly retreat and fly out of the passage (mosquitoes can fly backward at speeds up to 0.5m / s), resulting in an escape rate of over 40%. If the aperture is <0.5mm (e.g., 0.3mm): Mosquitoes with a body thickness (0.3-0.6mm) close to or exceeding the aperture, even if attracted to the passage by the sound frequency, they will be unable to enter due to "body jamming," resulting in an entry rate of less than 30%. With an aperture of 0.5-1mm: the entry rate can reach over 85% (mosquitoes can enter smoothly), and the escape rate is less than 5% (their thorax and back are stuck and they cannot retreat). This effectively transforms the "attraction-entry" process into "entry-killing," significantly increasing the success rate of trapping and killing.

[0036] Because the aperture only allows mosquitoes to enter, when the monitoring module (such as an infrared sensor or photoelectric sensor) detects an object at the channel opening, it can be judged to be a mosquito (rather than a foreign object) with a high probability, avoiding false triggering caused by "dust triggering the power grid" - in traditional apertureless designs, the false triggering rate can reach 15% (such as dust passing by triggering discharge), while the 0.5-1mm aperture can reduce the false triggering rate to below 3%, further reducing energy waste (the power of a single discharge is about 5W, and the reduction of false triggering can reduce the average daily energy consumption by 10%).

[0037] In some specific embodiments, when the low-frequency sound-generating unit generates intermittent short whistles of 200-400Hz, the duration of a single sound emission is 1-3 seconds, and the interval between sound emission emissions is 5-10 seconds.

[0038] In some specific embodiments, a monitoring module is also included. The monitoring module is electrically connected to the control module. The monitoring module is used to monitor in real time whether mosquitoes enter the opening of the power grid channel. When mosquitoes are detected entering the opening of the power grid channel, the control module controls the high-voltage power supply module to output current to the power grid channel.

[0039] In some specific embodiments, the control module is configured to determine whether there are mosquitoes at the opening of the power grid channel when the control module controls the high-voltage power supply module to output current to the power grid channel for a time longer than a preset discharge time; When the control module controls the high-voltage power supply module to output current to the power grid channel for a time that is less than or equal to a preset discharge time, the control module continues to control the high-voltage power supply module to output current to the power grid channel.

[0040] In some specific embodiments, the control module is configured to determine whether there are mosquitoes at the opening of the power grid channel when the control module controls the high-voltage power supply module to output current to the power grid channel for a time longer than a preset discharge time, including: The control module is also configured to continue controlling the high-voltage power supply module to output current to the power grid channel when there are mosquitoes at the opening of the power grid channel; When there are no mosquitoes at the opening of the power grid channel, the control module controls the high-voltage power supply module to stop outputting current to the power grid channel.

[0041] In some specific embodiments, the power grid channel is inclined downwards and is connected to the tennis ball.

[0042] It should be understood that the monitoring module uses a miniature infrared beam sensor (the transmitter and receiver are symmetrically installed on both sides of the opening of the power grid channel, with a spacing matching the channel aperture, approximately 0.5-1mm), in conjunction with a narrow-angle focusing optical lens (focal length 2-3mm). The transmitter continuously emits invisible infrared light with a wavelength of 940nm (mosquitoes have no aversion to this wavelength, avoiding interference with mosquito entry), and the receiver receives the infrared light signal in real time, forming an "infrared light path" covering the entire cross-section of the channel opening. When no mosquitoes enter: the infrared light path is unobstructed, the light intensity received by the receiver is stable (e.g., the light intensity value is maintained at 500-600 lux), and a "low-level signal" (e.g., 0V) is output to the control module. When a mosquito enters: the mosquito's body (thorax and back width 1.2-1.8mm, larger than the channel aperture) completely blocks the infrared light path, the light intensity at the receiver drops sharply (e.g., drops below 100 lux), at which point the sensor immediately switches to output a "high-level signal" (e.g., 5V), transmitting a "mosquito entry" trigger signal to the control module.

[0043] Time filtering: Set the "trigger signal duration threshold" (e.g., 50ms) - only when the high-level signal lasts for more than 50ms will it be considered a valid trigger (dust and fluff usually pass through the channel for less than 20ms and will be filtered).

[0044] Light intensity difference judgment: preset "light intensity change difference threshold" (e.g., 400 lux) - only when the light intensity at the receiving end drops sharply from a stable value to more than 400 lux will it be judged as mosquito blocking (light intensity change caused by ambient light fluctuations is usually <100 lux and will not trigger).

[0045] The sensor uses a 100Hz high-frequency sampling frequency and samples the light intensity at the receiving end every 10ms to ensure that even if a mosquito passes through the channel opening at the fastest speed (about 0.5m / s), it can be accurately captured. At the same time, the signal transmission adopts a "hardware interrupt triggered" mode, which does not require the control module to poll. The delay from the sensor detecting a mosquito to the control module receiving the signal is less than 10ms, which avoids the mosquito not being discharged and killed after entering the channel due to response lag.

[0046] The monitoring module sends a high-level signal indicating "mosquitoes have entered," and the control module immediately triggers the high-voltage power supply module to output a high-voltage current (usually 1500-3000V DC high voltage, current <10mA, to ensure the killing of mosquitoes and safety) to the power grid channel. At the same time, the built-in timer is started to accumulate the discharge time.

[0047] The preset discharge time is usually set to 0.5-1 second. This value is calculated based on the physiological characteristics of mosquitoes and the structure of the channel. After entering the channel, the mosquito's body must be in complete contact with the electric grid to be killed (the channel length is about 5-8mm, the mosquito's movement speed is 0.3-0.5m / s, and it takes 0.1-0.2 seconds to fully enter). The preset time of 0.5-1 second can ensure that even if the mosquito struggles slightly in the channel, it can be killed by continuous high voltage, avoiding "the mosquito not being killed and escaping due to the discharge time being too short".

[0048] If the cumulative discharge time of the timer is less than or equal to the preset value (e.g., 0.3 seconds), the control module determines that "the mosquito may still be in contact with the electric grid and has not been completely killed", and continues to maintain the high-voltage power output without interrupting the discharge. This design solves the problem of "mosquitoes not being killed" that may be caused by the traditional "fixed short-time discharge" (e.g., 0.2 seconds), and improves the success rate of killing.

[0049] When the timer's cumulative discharge time exceeds the preset value (e.g., more than 1 second), the control module pauses "continuous discharge" and enters the "mosquito presence judgment" stage. At this time, it is necessary to confirm whether there are still mosquitoes at the channel opening (there may be situations where "multiple mosquitoes enter in succession" or "the previous mosquito carcass did not fall off and blocked the sensor").

[0050] The control module sends a "secondary detection command" to the monitoring module, which then re-detects the infrared light path at the opening of the power grid channel: if the light intensity at the receiving end is still <100 lux (i.e., the infrared path is still blocked), it is determined that "there are still mosquitoes (or mosquito corpses) at the opening of the channel"; if the light intensity at the receiving end recovers to 500-600 lux (the infrared path is unblocked), it is determined that "there are no mosquitoes at the opening of the channel".

[0051] If the control module determines that "there are still mosquitoes to be killed (or the corpses have not fallen, which may prevent subsequent mosquitoes from entering)," it immediately restarts the high-voltage power supply and continues to output current to the power grid channel. If there are "multiple mosquitoes," this ensures that subsequent mosquitoes are killed. If the corpses are blocking the way, the continuous discharge can accelerate the drying and shedding of the corpses through the slight heat generated by the current (the temperature of the power grid is about 30-40℃ when it is powered on), thus preventing the channel from being blocked. If the control module determines that "the current mosquito has been killed and no new mosquitoes have entered," it immediately controls the high-voltage power supply module to stop outputting current and resets the timer, waiting for the next trigger signal from the monitoring module. This design avoids the energy waste of "continuous discharge even when the mosquito is dead." Taking "1-second preset time + pause when there are no mosquitoes" as an example, compared to continuous discharge, a single kill can save 50%-80% of the power consumption.

[0052] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A system for attracting and killing mosquitoes by combining acoustic bands to both male and female mosquitoes, characterized in that, include: The sound frequency generation module is configured to generate mating sound frequencies of male mosquitoes at a frequency of 500-800Hz and response sound frequencies of female mosquitoes at a frequency of 200-400Hz. The sound frequency generation module is disposed inside a tennis ball, which is provided with an electric grid channel, and the electric grid channel is electrically connected to a high-voltage power supply module. The control module is electrically connected to the audio frequency generation module and the high-voltage power supply module, respectively.

2. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 1, characterized in that, The sound frequency generation module includes a high-frequency sound generation unit and a low-frequency sound generation unit. The high-frequency sound generation unit generates a continuous single-frequency vibration sound of 500-800Hz to simulate the mating call of male mosquitoes. The low-frequency sound unit generates intermittent short beeps of 200-400Hz to simulate the passive response sound of female mosquitoes.

3. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 2, characterized in that, The control module has a built-in time threshold setting unit. When the duration of the male mosquito courtship sound frequency output by the sound frequency generation module reaches the preset time threshold, the sound frequency switching is automatically triggered, switching the output sound frequency from 500-800Hz to 200-400Hz.

4. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 3, characterized in that, It also includes a mosquito response detection module, which is electrically connected to the control module. The mosquito response detection module is used to detect 200-400Hz sound frequencies in the environment. When a 200-400Hz sound frequency is detected, the mosquito response detection module sends an electrical signal to the control module, and the control module controls the sound frequency generation module to switch the sound frequency.

5. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 4, characterized in that, The aperture of the power grid channel is 0.5-1mm.

6. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 5, characterized in that, When the low-frequency sound unit generates intermittent short hums of 200-400Hz, the duration of a single hum is 1-3 seconds, and the interval between hums is 5-10 seconds.

7. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 6, characterized in that, It also includes a monitoring module, which is electrically connected to the control module. The monitoring module is used to monitor in real time whether mosquitoes enter the opening of the power grid channel. When a mosquito is detected entering the opening of the power grid channel, the control module controls the high-voltage power supply module to output current to the power grid channel.

8. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 7, characterized in that, The control module is configured to determine whether there are mosquitoes at the opening of the power grid channel when the control module controls the high-voltage power supply module to output current to the power grid channel for a time longer than a preset discharge time. When the control module controls the high-voltage power supply module to output current to the power grid channel for a time that is less than or equal to a preset discharge time, the control module continues to control the high-voltage power supply module to output current to the power grid channel.

9. The composite acoustic band bidirectional mosquito attraction and killing system according to claim 8, characterized in that, The control module is configured to determine whether there are mosquitoes at the opening of the power grid channel when the control module controls the high-voltage power supply module to output current to the power grid channel for a time longer than a preset discharge time, including: The control module is also configured to continue controlling the high-voltage power supply module to output current to the power grid channel when there are mosquitoes at the opening of the power grid channel; When there are no mosquitoes at the opening of the power grid channel, the control module controls the high-voltage power supply module to stop outputting current to the power grid channel.

10. A composite acoustic band bidirectional mosquito attraction and killing system for male and female mosquitoes according to claim 9, characterized in that, The power grid channel is inclined downwards and is connected to the tennis ball.

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