National park boundary invading animal voiceprint recognition early warning device and system

By introducing sound insulation shells and sound insulation curtain mechanisms into the voiceprint collection equipment, acoustically isolated confined space is formed, which solves the problem of low quality of voiceprint collection in open environments and improves the accuracy of identification of invasive animals.

CN120388462APending Publication Date: 2025-07-29NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Patent Information

Application Number
CN202510511763.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-07-29

AI Technical Summary

Technical Problem

The existing voiceprint collection equipment is subject to complex acoustic interference in an open environment, resulting in low quality of animal voiceprint data, affecting the accuracy of identification of invading animals.

Method used

An early warning device including a sound-insulating shell and a sound-insulating curtain mechanism is designed to lure animals into the confined space through the bait supply equipment in the sound-insulating shell, and the sound-insulating curtain is controlled to close the entrance by using detection sensors to form acoustic isolation and improve the quality of sound-mark data acquisition.

Benefits of technology

Effectively isolate external noise interference, improve the collection quality of voiceprint data and the identification accuracy of invading animals, and provide a reliable data foundation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a national park boundary invading animal voiceprint recognition early warning device and system, and the device comprises a boundary fence main body, and also comprises a sound insulation shell inserted in the boundary fence main body, one side of the sound insulation shell is provided with an entrance, the entrance is provided with a sound insulation curtain mechanism, and the interior of the sound insulation shell is provided with a bearing frame. The bearing frame is connected with a bait hopper through a detection sensor, the detection sensor detects the weight of the bait hopper, when the weight of the bait hopper is lower than a preset threshold value, the sound insulation curtain mechanism is driven to seal the inlet, and a first voiceprint collection module used for collecting animal voiceprint data is arranged in the sound insulation shell. The device is provided with the sound insulation shell, bait is supplied into the bait hopper, so that intercepted animals are attracted to enter the sound insulation shell, meanwhile, the detection sensor is in linkage with the sound insulation curtain mechanism, an inlet is closed, and an acoustic isolation closed space is formed, so that the quality of voiceprint data collected by the first voiceprint collection module in the sound insulation shell is improved; and a reliable data basis is provided for voiceprint recognition of the subsequent voiceprint recognition module.
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Description

Technical Field

[0001] The present invention relates to the technical field of voiceprint recognition and early warning, and specifically to a voiceprint recognition and early warning device and system for invasive animals at the boundary of a national park. Background Art

[0002] With the increasing demand for biodiversity conservation, nature reserves such as national parks are facing the severe challenge of invasive species threatening the ecological balance. Traditional invasive animal monitoring widely uses voiceprint recognition and early warning technology, that is, voiceprint data is collected through a voiceprint acquisition device, and then it is analyzed and judged whether it is an invasive animal by analyzing the recognized voiceprint data. Subsequently, early warning is carried out according to the analysis result. Although this method can effectively identify invasive animals, there are still the following defects when it is used: Most of the existing voiceprint acquisition devices are in an open environment and are inevitably severely affected by complex environmental acoustic interferences (including but not limited to high-frequency wind noise, precipitation noise, etc.). These interference factors not only result in the often low-quality animal voiceprint data collected, which has a great impact on subsequent voiceprint recognition, affecting the recognition accuracy of invasive animals and making it impossible to efficiently warn of invasive animals. For this reason, we propose a voiceprint recognition and early warning device and system for invasive animals at the boundary of a national park. Summary of the Invention

[0003] The purpose of the present invention is to provide a voiceprint recognition and early warning device and system for invasive animals at the boundary of a national park to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A voiceprint recognition and early warning device for invasive animals at the boundary of a national park includes a boundary fence main body, and further includes a sound insulation shell inserted into the boundary fence main body and in contact with the ground. One side of the sound insulation shell is provided with an entrance, and a sound insulation curtain mechanism is arranged at the entrance. A bearing frame is arranged inside the sound insulation shell. The bearing frame is connected to a bait hopper through a detection sensor. A bait supply device is arranged on the sound insulation shell. The output end of the bait supply device is communicated with a discharge pipe for feeding bait into the bait hopper. The detection sensor detects the weight of the bait hopper and drives the sound insulation curtain mechanism to close the entrance when the weight of the bait hopper is lower than a preset threshold. A voiceprint acquisition module one for collecting animal voiceprint data is arranged inside the sound insulation shell. The voiceprint acquisition module one is electrically connected to a voiceprint recognition module. The voiceprint recognition module is electrically connected to a controller, and the controller is electrically connected to an early warning module. The voiceprint recognition module receives animal voiceprint data and generates an analysis result of whether it is an invasive animal. The early warning module gives an early warning when the analysis result is an invasive animal and makes the sound insulation curtain mechanism open the entrance.

[0005] A further improvement is that the soundproof curtain mechanism includes a shell embedded in the top of the soundproof shell, a winding shaft is provided in the shell, the winding shaft is driven to rotate by a driving mechanism, the driving mechanism is electrically connected to the controller, the controller is electrically connected to the detection sensor, the soundproof curtain body is symmetrically wound at both ends of the outer wall of the winding shaft, and one end of the soundproof curtain body passes through the bottom wall of the shell and is connected to a counterweight block.

[0006] A further improvement is that the driving mechanism includes an electric guide rail group provided on the inner wall of the sound insulation shell and a rack slidably provided on the inner wall of the sound insulation shell and parallel to the electric guide rail group. The slider of the electric guide rail group is connected to the carrier frame, one end of the rack is connected to the inner wall of the sound insulation shell through an elastic member, one side of the rack is engaged with a gear, the gear is sleeved on one end of the winding shaft, and the other end of the winding shaft is movable through the side wall of the sound insulation shell and is connected to the winding shaft through a sprocket transmission group. When the detection sensor detects that the weight of the bait bucket is lower than a preset threshold, the controller drives the slider of the electric guide rail group to move toward the inside of the sound insulation shell. When the slider moves to the preset position, it drives the rack to rotate the winding shaft.

[0007] A further improvement is that the driving mechanism includes a rotating device provided on the side wall of the housing and connected to one end of the winding shaft.

[0008] A further improvement is that the inner rotating shaft at the bottom of the counterweight block is connected to a rotating sealing plate, and the rotating sealing plate is driven to rotate by a rotating member provided on the counterweight block. A positioning sensor is embedded in the outer wall of the counterweight block facing the sound insulation shell, and the positioning sensor is electrically connected to the controller. The inner wall of the sound insulation shell is provided with a sensing member that cooperates with the positioning sensor. When the positioning sensor corresponds to the sensing member, the controller controls the driving mechanism to close and causes the rotating member to drive the rotating sealing plate to rotate to a preset angle. When the rotating sealing plate rotates to the preset angle, the end of the rotating sealing plate away from the counterweight block contacts the ground. A permanent magnet block is also embedded in the outer wall of the counterweight block facing the sound insulation shell, and a positioning magnet is provided on the outer wall of the sound insulation shell on one side for adsorbing the permanent magnet block. When the positioning sensor corresponds to the sensing member, the positioning magnet is adsorbed by the permanent magnet block.

[0009] A further improvement is that flexible magnetic strips with opposite magnetic poles are provided on opposite sides of the two groups of sound insulation curtain bodies, the two groups of counterweights and the two groups of rotating sealing plates.

[0010] A further improvement is that an air-inducing device is provided at the bottom of the bait hopper, and a plurality of groups of micro-holes connected to the air inlet end of the air-inducing device are opened on the bottom wall of the bait hopper, and an exhaust pipe is provided at the air outlet end of the air-inducing device.

[0011] A further improvement is that the early warning module includes an alarm arranged on the boundary fence body and a driving device arranged in a soundproof shell.

[0012] A further improvement is that the soundproof shell is provided with an outlet on one side relative to the entrance, the outlet is closed by a symmetrically arranged movable door, the movable door is connected to the boundary fence body through a telescopic device, and the telescopic device is electrically connected to the controller.

[0013] A national park border intrusion animal voiceprint recognition and warning system includes the warning device described above, and further includes: The second voiceprint collection module is used to collect animal voiceprint data in the area where the boundary fence is located, and wirelessly transmit the collected animal voiceprint data to the voiceprint recognition module to generate an analysis result. If the analysis result is an intruding animal, it sends a signal to the controller to control the early warning module to operate. If the analysis result is a non-intrusive animal, it sends a signal to the controller to control the first voiceprint collection module and the bait supply device to operate. A database, electrically connected to the voiceprint recognition module, and configured to store voiceprint data of invading animals; The monitoring terminal is wirelessly connected to the early warning device and is used for remote communication with the early warning device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention intercepts animals entering the national park through a boundary fence body and is provided with a soundproof shell. Bait can be supplied to the bait hopper through a bait supply device and a discharge pipe in the soundproof shell, thereby luring the intercepted animals into the soundproof shell. At the same time, a detection sensor is linked to a soundproof curtain mechanism to seal the entrance, forming an acoustically isolated enclosed space, so as to improve the quality of voiceprint data collected by the voiceprint collection module in the soundproof shell and ensure that complete animal voiceprint data is collected, providing a reliable data basis for the subsequent voiceprint recognition module to perform voiceprint recognition, thereby improving the accuracy of early warning of invading animals. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the early warning device of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure from another perspective; Figure 3 Schematic diagram of the internal structure of the sound insulation shell of the present invention; Figure 4 For the present invention Figure 3 Another perspective structural diagram; Figure 5 This is a schematic structural diagram of the soundproof curtain mechanism of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure A; Figure 7 This is a schematic diagram of the early warning system of the present invention.

[0016] In the figure: 1. Boundary fence main body; 2. Sound insulation shell; 3. Bearing frame; 4. Bait hopper; 5. Air induction equipment; 6. Bait supply equipment; 7. Discharge pipe; 8. Driving mechanism; 801. Rotating equipment; 81. Guide rail group; 82. Rack; 83. Sprocket drive group; 9. Sound insulation curtain mechanism; 91. Shell; 92. Sound insulation curtain main body; 93. Counterweight; 94. Positioning sensor; 95. Rotating sealing plate; 96. Rotating part; 97. Flexible magnetic strip; 98. Positioning magnet; 99. Inductive part; 10. Voiceprint acquisition module I; 11. Early warning module; 12. Movable door; 13. Telescopic equipment. Specific implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1 Please refer to the attached Figures 1-3 and the attached Figure 7 , a voiceprint recognition and early warning device for invasive animals at the boundary of a national park. This device mainly targets animals moving on land, such as wild boars, foxes, coyotes, etc., and includes a boundary fence main body 1, and the boundary fence main body 1 is installed in the boundary area of the national park; The warning device further includes a sound insulation shell 2 inserted into the boundary fence main body 1 and in contact with the ground. The bottom of the sound insulation shell 2 is hollow. There is an entrance on one side of the sound insulation shell 2 to guide animals to enter. A sound insulation curtain mechanism 9 is arranged at the entrance to close the entrance. A bearing frame 3 is arranged in the sound insulation shell 2. The bearing frame 3 is connected with a bait hopper 4 through a detection sensor. The detection sensor, for example, adopts a pressure sensor, which is a conventional device in the field and will not be described in detail here. Specifically, the detection sensor is arranged on the bearing frame 3, and its detection end is connected to the bait hopper 4. A bait supply device 6 is arranged on the sound insulation shell 2. The bait supply device 6, for example, includes structures such as a storage bin and will not be described in detail here. The output end of the bait supply device 6 is communicated with a discharge pipe 7 for feeding bait into the bait hopper 4. A valve, such as a solenoid valve, is arranged in the discharge pipe 7. By controlling the valve, the bait supply device 6 feeds bait into the bait hopper 4. The detection sensor detects the weight of the bait hopper 4. When the weight of the bait hopper 4 is lower than a preset threshold, it drives the sound insulation curtain mechanism 9 to close the entrance. The bait hopper 4 is used to lure animals into the sound insulation shell 2, and the sound insulation curtain mechanism 9 closes the entrance during the process of animals eating bait, forming a closed sound insulation space, so as to effectively isolate the interference of external environmental noise. Furthermore, pure voiceprint signals can be obtained in the natural feeding state of animals, greatly improving the accuracy of sound feature extraction, providing reliable data support for the identification of invasive species and ecological research. At the same time, bait is used to prompt the animals that enter to make chewing sounds or social calls, etc.; A voiceprint acquisition module one 10 for acquiring animal voiceprint data is arranged in the sound insulation shell 2. For example, the voiceprint acquisition module one 10 includes a filter and a voiceprint extraction unit (microphone). The voiceprint acquisition module one 10 is electrically connected to a voiceprint recognition module (for example, a SpeakIN voiceprint recognition chip module group can be adopted). The voiceprint recognition module is electrically connected to a controller, and the controller is electrically connected to a warning module 11. The voiceprint recognition module receives animal voiceprint data and generates an analysis result of whether it is an invasive animal. When the analysis result is an invasive animal, the warning module 11 gives an alarm and makes the sound insulation curtain mechanism 9 open the entrance; Preferably, the sound insulation curtain mechanism 9 of this embodiment includes a shell 91 embedded in the top of the sound insulation shell 2. A winding shaft (not shown in the figure) is arranged in the shell 91. The winding shaft is driven to rotate by a driving mechanism 8. The driving mechanism 8 is electrically connected to the controller, and the controller is electrically connected to the detection sensor. Sound insulation curtain bodies 92 are symmetrically wound at both ends of the outer wall of the winding shaft. The sound insulation curtain bodies 92 can adopt transparent PVC sound insulation curtains. One end of the sound insulation curtain body 92 passes through the bottom wall of the shell 91 and is connected with a counterweight 93; During use, when the detection sensor detects that the weight of the bait hopper 4 is lower than the preset threshold, the controller controls the driving mechanism 8 to operate. Then, the driving mechanism 8 rotates the winding shaft to unwind the sound insulation curtain body 92. Under the constant tension of the counterweight 93, the sound insulation curtain body 92 smoothly and vertically drops, completely closing the entrance of the sound insulation shell 2, forming an optically transparent but acoustically isolated enclosed space. Through the sound insulation curtain body 92, not only can the sound insulation shell 2 form an enclosed sound insulation space after the animal enters it, so as to improve the quality of the sound pattern data collected by the sound pattern acquisition module 10, but also when the warning module 11 is working, the driving mechanism 8 winds up the sound insulation curtain body 92 to ensure unobstructed evacuation of the animal. And because the sound insulation curtain body 92 can be opened under force, the animal will not be injured due to contact and impact with the sound insulation curtain body 92 when the entrance is not fully opened during evacuation. When the warning module 11 is not working, the attraction of the bait in the bait hopper 4 effectively maintains the animal's willingness to stay in the sound insulation shell 2.

[0019] Preferably, an air guiding device 5 (such as a blower) is provided at the bottom of the bait hopper 4 in this embodiment, and a plurality of groups of micropores communicating with the air inlet end of the air guiding device 5 are formed on the bottom wall of the bait hopper 4. The aperture of the micropores is smaller than the particle size of the bait. The micropores can allow air to enter while preventing the bait from entering. An exhaust pipe is provided at the air outlet end of the air guiding device 5, and the end of the exhaust pipe adopts a Venturi effect flaring design. In addition, by continuously releasing the bait smell, the animal's sense of smell can be stimulated, prompting it to actively explore and emit foraging sounds, gnawing sounds or warning sounds, so as to ensure that the sound pattern acquisition module 10 can effectively collect the sound pattern data of the animal in the sound insulation shell 2; With this setting, the air guiding device 5 can be turned on during use. The air guiding device 5 causes the air to contact the bait in the bait hopper 4 and then be drawn out by the air guiding device 5 and discharged from the exhaust pipe, so as to fully disperse the bait smell and guide the animal into the sound insulation shell 2.

[0020] Preferably, the warning module 11 in this embodiment includes an alarm provided on the boundary fence main body 1 and a driving device provided in the sound insulation shell 2. The driving device is, for example, an ultrasonic generator; Through the alarm, reminders can be given. Through the driving device, the invading animals can be driven to leave the area where the sound insulation shell 2 and the boundary fence main body 1 are located, effectively preventing the invading animals from entering the national park.

[0021] Preferably, an exit is provided on one side of the sound insulation shell 2 relative to the entrance. The exit is closed by symmetrically arranged movable doors 12. The movable doors 12 are connected to the boundary fence main body 1 through a telescopic device 13 (such as an electric telescopic rod), and the telescopic device 13 is electrically connected to the controller; When the voiceprint recognition module receives animal voiceprint data and generates an analysis result for a non-invasive animal, the telescopic device 13 can be used to drive the movable door 12 to open the exit, so that the non-invasive animal can also enter the national park through the exit. Of course, since the sound insulation curtain mechanism 9 is used to close the entrance, the non-invasive animal can also leave the sound insulation shell 2 by passing through the sound insulation curtain main body 92.

[0022] A voiceprint recognition and early warning system for invasive animals at the boundary of a national park, including the early warning device as described above. The system further includes: The second voiceprint acquisition module. The second voiceprint acquisition module serves as a pre-monitoring unit. The second voiceprint acquisition module is the same as the first voiceprint acquisition module 10. The difference is that the first voiceprint acquisition module 10 is inside the sound insulation shell 2, while the second voiceprint acquisition module is outside the sound insulation shell 2. The second voiceprint acquisition module is used to acquire animal voiceprint data in the area where the boundary fence main body 1 is located, and wirelessly send the acquired animal voiceprint data to the voiceprint recognition module to generate an analysis result. When the analysis result is an invasive animal, a signal is sent to the controller to make the controller control the early warning module 11 to work. When the analysis result is a non-invasive animal, a signal is sent to the controller to make the controller control the first voiceprint acquisition module 10 and the bait supply device 6 to work; By setting the second voiceprint acquisition module and the first voiceprint acquisition module 10 to provide double guarantees, initially the first voiceprint acquisition module 10 can be not turned on for work, and the animal voiceprint data is collected by the second voiceprint acquisition module. Since the second voiceprint acquisition module is outside the sound insulation shell 2, it will inevitably be affected by environmental noise and the like. Therefore, the accuracy of the animal voiceprint data it acquires is relatively lower than that of the first voiceprint acquisition module 10. If the animal voiceprint data it acquires can be effectively recognized as a non-invasive animal by the voiceprint recognition module, then the first voiceprint acquisition module 10 can continue not to work. If the animal voiceprint data it acquires can be recognized as a non-invasive animal by the voiceprint recognition module, then the first voiceprint acquisition module 10 and the bait supply device 6 can be made to work to lure the non-invasive animal into the sound insulation shell 2 for further animal voiceprint data collection and analysis and judgment.

[0023] The database, electrically connected to the voiceprint recognition module. The database is used to store invasive animal voiceprint data. After receiving the animal voiceprint data, the voiceprint recognition module compares it with the invasive animal voiceprint data stored in the database to analyze and judge whether the collected animal voiceprint data is an invasive animal; The monitoring terminal, wirelessly connected to the early warning device, used for remote communication with the early warning device. The monitoring terminal can receive the analysis result of the voiceprint recognition module and remotely control the controller in the early warning device to make the corresponding electrical equipment work, etc.

[0024] Embodiment 2 Please refer to the appendix Figure 2 - Appendix Figure 3Based on Example 1, the drive mechanism 8 of this embodiment includes an electric guide rail assembly 81 (e.g., including a guide rail, a drive device, and a slider) provided on the inner wall of the soundproof housing 2, and a rack 82 slidably provided on the inner wall of the soundproof housing 2 and parallel to the electric guide rail assembly 81. The slider of the electric guide rail assembly 81 is connected to the carrier 3. Initially, the carrier 3 is located on the side of the guide rail near the entrance of the soundproof housing 2 so that the animal can see the bait in the bait hopper 4. One end of the rack 82 is connected to the inner wall of the soundproof housing 2 via an elastic member (e.g., a spring). One side of the rack 82 is engaged with a gear, which is sleeved on one end of the winding shaft. The other end of the winding shaft movably extends through the side wall of the soundproof housing 2 and is transmission-connected to the winding shaft via a sprocket transmission assembly 83 (including a sprocket and a chain). When the detection sensor of the electric guide rail assembly 81 detects that the weight of the bait hopper 4 is lower than a preset threshold, the controller drives the slider to move toward the inside of the soundproof housing 2. When the slider moves to the preset position, it drives the rack 82 to rotate the winding shaft. In the initial state, the carrier 3 fixed to the slider is located at the entrance of the sound insulation shell 2, ensuring that the bait in the bait bucket 4 can be clearly observed within the animal's field of vision, thereby improving the effect of attracting animals. When the animal eats the bait in the bait bucket 4, the electric guide rail group 81 drives the bait bucket 4 to move to the side away from the animal (inner cavity of the sound insulation shell 2), thereby attracting the animal to go deeper into the sound insulation shell 2. When the slider reaches the preset position, it contacts the rack 82, and drives the rack 82 to move as the slider continues to move, and then the rack 82 causes the winding shaft to rotate to unwind the sound insulation curtain body 92 to close the entrance of the sound insulation shell 2. In this way, when the early warning module 11 is working, the electric guide rail group 81 is reset, causing the bait bucket 4 to move toward the animal (entrance of the sound insulation shell 2), exerting pressure on the animal, thereby having a certain driving effect on the animal in the sound insulation shell 2, causing it to leave the sound insulation shell 2.

[0025] Example 3 Please see attached Figure 2 Based on Example 1, the driving mechanism 8 of this embodiment includes a rotating device 801 provided on the side wall of the shell and connected to one end of the winding shaft. The rotating device 801 is, for example, a servo motor. It should be noted that if this method is adopted, the supporting frame 3 and the bait bucket 4 are located inside the sound insulation shell 2 so that the animal can completely enter the sound insulation shell 2.

[0026] Example 4 Please see attached Figure 4 -Attached Figure 6, on the basis of Embodiment 1, a rotating sealing plate 95 is rotatably connected to the inner side of the bottom of the counterweight 93 in this embodiment. The vertical section of the rotating sealing plate 95 is V-shaped. The rotating sealing plate 95 is driven to rotate by a rotating member 96 provided on the counterweight 93. The rotating member 96 is, for example, an arc-shaped toothed plate with one end connected to the rotating sealing plate 95, a gear provided in the counterweight 93 and meshing with the arc-shaped toothed plate, and a micro motor for driving the gear to rotate. It is also possible that the rotating member 96 can be a motor device for driving the shaft part at the connection between the rotating sealing plate 95 and the counterweight 93, which will not be elaborated here; A positioning sensor 94 is embedded in the outer wall of one side of the counterweight 93 facing the sound insulation shell 2. The positioning sensor 94 is electrically connected to the controller. An induction member 99 cooperating with the positioning sensor 94 is provided on the inner wall of the sound insulation shell 2. The above-mentioned positioning sensor 94 can adopt a laser ranging sensor, and the induction member 99 can adopt a reflective nameplate. Of course, the positioning sensor 94 and the induction member 99 are not limited to the above methods; When the positioning sensor 94 corresponds to the induction member 99, the controller controls the drive mechanism 8 to close and makes the rotating member 96 drive the rotating sealing plate 95 to rotate to a preset angle. When the rotating sealing plate 95 rotates to the preset angle, the end of the rotating sealing plate 95 away from the counterweight 93 contacts the ground; If there are gravel particles, etc. on the ground under the sound insulation curtain main body 92, when contacting the sound insulation curtain main body 92, it will cause a large gap at the connection between the sound insulation curtain main body 92 and the ground, thereby affecting the sound insulation effect. For this reason, to solve this problem, after the sound insulation curtain main body 92 drives the counterweight 93 down to a preset position in this device, the positioning sensor 94 corresponds to the induction member 99, and then the rotating sealing plate 95 rotates, sweeping and pushing the gravel particles, etc. on the ground under the sound insulation curtain main body 92 to the outside of the sound insulation shell 2 in an arc trajectory. At the same time, the rotating sealing plate 95 resets and cooperates with the counterweight 93 and the sound insulation curtain main body 92 to close the entrance, effectively avoiding the influence of gravel particles, etc. on the sound insulation effect; Preferably, the side of the rotating sealing plate 95 away from the counterweight 93 can be made of wear-resistant rubber material.

[0027] As a preference, a permanent magnet block is also embedded in the outer wall of one side of the counterweight 93 in this embodiment facing the sound insulation shell 2. A positioning magnet 98 for adsorbing the permanent magnet block is provided on the outer wall of one side of the sound insulation shell 2. When the positioning sensor 94 corresponds to the induction member 99, the positioning magnet 98 adsorbs to the permanent magnet block. Through this setting, the position of the counterweight 93 is effectively positioned, and the counterweight 93 is fixed to a certain extent, so that when the rotating sealing plate 95 is driven to rotate by the rotating member 96, the counterweight 93 will not move upward, ensuring the stable correspondence between the positioning sensor 94 and the induction member 99.

[0028] Preferably, flexible magnetic strips 97 with opposite magnetic poles are provided on the opposite sides of the two groups of sound insulation curtain bodies 92, the two groups of counterweights 93, and the two groups of rotating sealing plates 95 in this embodiment, so that the opposite sides of the two groups of sound insulation curtain bodies 92, the two groups of counterweights 93, and the two groups of rotating sealing plates 95 are adsorbed to each other, thereby improving the sound insulation and sealing effect of the sound insulation curtain mechanism 9 on the inlet of the sound insulation shell 2.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acoustic fingerprint recognition and early warning device for invasive animals at the national park boundary, comprising a boundary fence main body (1), characterized in that: The soundproof housing (2) is inserted into the boundary fence body (1) and in contact with the ground. An entrance is provided on one side of the soundproof housing (2). A soundproof curtain mechanism (9) is provided at the entrance. A carrier (3) is provided in the soundproof housing (2). The carrier (3) is connected to a bait bucket (4) via a detection sensor. A bait supply device (6) is provided on the soundproof housing (2). The output end of the bait supply device (6) is connected to a discharge pipe (7) for supplying bait to the bait bucket (4). The detection sensor detects the weight of the bait bucket (4). ) When the weight is lower than a preset threshold, the soundproof curtain mechanism (9) is driven to close the entrance. A voiceprint acquisition module (10) for collecting animal voiceprint data is provided in the soundproof shell (2). The voiceprint acquisition module (10) is electrically connected to the voiceprint recognition module. The voiceprint recognition module is electrically connected to the controller. The controller is electrically connected to the early warning module (11). The voiceprint recognition module receives the animal voiceprint data and generates an analysis result of whether it is an invading animal. The early warning module (11) issues an early warning when the analysis result is an invading animal and causes the soundproof curtain mechanism (9) to open the entrance.

2. The warning device according to claim 1, characterized in that: The soundproof curtain mechanism (9) comprises a shell (91) embedded in the top of the soundproof shell (2), a winding shaft is provided in the shell (91), the winding shaft is driven to rotate by a driving mechanism (8), the driving mechanism (8) is electrically connected to a controller, and the controller is electrically connected to a detection sensor, a soundproof curtain body (92) is symmetrically wound at both ends of the outer wall of the winding shaft, and one end of the soundproof curtain body (92) passes through the bottom wall of the shell (91) and is connected to a counterweight block (93).

3. The warning device according to claim 2, wherein: The driving mechanism (8) comprises an electric guide rail group (81) provided on the inner wall of the sound insulation shell (2) and a rack (82) slidably provided on the inner wall of the sound insulation shell (2) and parallel to the electric guide rail group (81); the slider of the electric guide rail group (81) is connected to the carrier (3); one end of the rack (82) is connected to the inner wall of the sound insulation shell (2) through an elastic member; one side of the rack (82) is meshed with a gear; the gear is sleeved on one end of the winding shaft; the other end of the winding shaft movably passes through the side wall of the sound insulation shell (2) and is connected to the winding shaft through a sprocket transmission group (83); when the detection sensor detects that the weight of the bait hopper (4) is lower than a preset threshold value, the controller drives the slider of the electric guide rail group (81) to move toward the inner side of the sound insulation shell (2); when the slider moves to the preset position, the rack (82) is driven to rotate the winding shaft.

4. The warning device according to claim 2, wherein: The driving mechanism (8) comprises a rotating device (801) arranged on the side wall of the housing and connected to one end of the winding shaft.

5. The warning device according to claim 2, wherein: The inner rotating shaft of the bottom of the counterweight (93) is connected to a rotating sealing plate (95), and the rotating sealing plate (95) is driven to rotate by a rotating member (96) provided on the counterweight (93). A positioning sensor (94) is embedded in the outer wall of the counterweight (93) facing the sound insulation shell (2). The positioning sensor (94) is electrically connected to the controller. The inner wall of the sound insulation shell (2) is provided with a sensing member (99) that cooperates with the positioning sensor (94). When the positioning sensor (94) corresponds to the sensing member (99), the controller controls the driving mechanism. (8) closing and causing the rotating member (96) to drive the rotating sealing plate (95) to rotate to a preset angle; when the rotating sealing plate (95) is rotated to the preset angle, one end of the rotating sealing plate (95) away from the counterweight (93) contacts the ground; a permanent magnet is embedded in the outer wall of the counterweight (93) facing the sound insulation shell (2); a positioning magnet (98) for adsorbing the permanent magnet is provided on the outer wall of the sound insulation shell (2); when the positioning sensor (94) corresponds to the induction member (99), the positioning magnet (98) is adsorbed on the permanent magnet.

6. The warning device according to claim 5, characterized in that: Flexible magnetic strips (97) with opposite magnetic poles are provided on opposite sides of the two groups of soundproof curtain bodies (92), the two groups of counterweights (93) and the two groups of rotating sealing plates (95).

7. The warning device according to claim 1, characterized in that: The bottom of the bait hopper (4) is provided with an air induction device (5), and the bottom wall of the bait hopper (4) is provided with a plurality of groups of micro holes connected with the air inlet end of the air induction device (5), and the air outlet end of the air induction device (5) is provided with an exhaust pipe.

8. The warning device according to claim 1, characterized in that: The early warning module (11) comprises an alarm arranged on the boundary fence body (1) and a driving device arranged in a soundproof shell (2).

9. The warning device according to claim 1, wherein: The sound insulation shell (2) is provided with an outlet on one side relative to the entrance, and the outlet is closed by a symmetrically arranged movable door (12). The movable door (12) is connected to the boundary fence body (1) through a telescopic device (13), and the telescopic device (13) is electrically connected to a controller.

10. A voiceprint recognition and early warning system for invasive animals at the national park boundary, characterized in that, The system comprises the early warning device according to any one of claims 1 to 9, further comprising: The second voiceprint collection module is used to collect animal voiceprint data in the area where the boundary fence body (1) is located, and wirelessly transmit the collected animal voiceprint data to the voiceprint recognition module to generate an analysis result. When the analysis result is an intruding animal, a signal is sent to the controller so that the controller controls the early warning module (11) to operate. When the analysis result is a non-intruding animal, a signal is sent to the controller so that the controller controls the first voiceprint collection module (10) and the bait supply device (6) to operate. A database, electrically connected to the voiceprint recognition module, and configured to store voiceprint data of invading animals; The monitoring terminal is wirelessly connected to the early warning device and is used for remote communication with the early warning device.