Campus blind area bullying audio early warning device and intervention method

Abstract

The invention discloses a campus blind area bullying audio early warning device and an intervention method, relates to the field of video monitoring processing equipment, and solves the problem that the collection efficiency and the subsequent disposal efficiency are affected due to the fact that the video and audio collection positions are fixed when an existing campus bullying early warning device is used. Comprising a device shell, a camera, an audio collector, a guide mechanism and a transmission mechanism, the guide mechanism comprises a straight guide rail, a first bent guide rail, a second bent guide rail and a driving part, and the transmission mechanism comprises a first conductive plate and a second conductive plate; the straight guide rail, the first bent guide rail and the second bent guide rail are connected and combined into a long rail to be arranged at the vertex angle position above the campus wall, the device shell is controlled by the driving piece to move along the long rail, the positions of the camera and the audio collector are adjusted, the collecting flexibility and stability are improved, bullying events of the campus blind area are reduced, and the safety of the campus is improved. Circuit communication between the long track and the device shell is completed through the transmission mechanism, and stable signal transmission operation is achieved.

Description

Technical Field

[0001] This invention relates to the field of video surveillance processing equipment technology, specifically to an audio early warning device and intervention method for bullying in blind spots on campus. Background Technology

[0002] High-incidence areas of school bullying incidents are mostly concentrated in visual blind spots such as corridor corners, stairwells, and rooftops. Due to their complex structure and obstructed viewpoints, traditional prevention and control methods are difficult to achieve full coverage in these areas, providing space for bullying behavior to breed and seriously endangering students' physical and mental health and campus safety and order.

[0003] Existing campus security monitoring equipment requires separate installation in each blind spot. This not only results in a large number of installations and high hardware and construction costs, but also makes it difficult to achieve continuous coverage of hidden areas such as the top corners of walls due to installation location limitations, leaving monitoring gaps. Furthermore, the fixed shooting angle makes it impossible to capture clear audio and video evidence when bullying incidents occur at the edge of the camera's monitoring range or in uncovered areas, leading to difficulties in subsequent investigation and evidence collection. Even if monitoring is deployed in some areas, it is difficult to obtain key details because it is impossible to get close to the scene of the incident, affecting the identification and handling of bullying behavior. Summary of the Invention

[0004] The purpose of this invention is to provide a campus blind spot bullying audio early warning device and intervention method that facilitates improved video and audio acquisition efficiency and prevents campus bullying incidents, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a campus blind spot bullying audio early warning device, comprising a device housing, a guiding mechanism, and a transmission mechanism. A camera is rotatably connected inside the device housing, and an audio collector is fixedly connected inside the device housing. The guiding mechanism includes a straight guide rail mounted on the side of the device housing, with a first curved guide rail and a second curved guide rail respectively at both ends of the straight guide rail. The first curved guide rail is used for installation at the inside corner of a wall, and the second curved guide rail is used for installation at the outside corner of a wall. The device housing is provided with a driving component for controlling the movement of the device housing along the straight guide rail, the first curved guide rail, and the second curved guide rail. The guiding mechanism can control the movement of the device housing through the driving component, adjusting the positions of the camera and the audio collector. The transmission mechanism includes a first conductive plate and a second conductive plate mounted on the device housing. The transmission mechanism can be electrically connected to the straight guide rail, the first curved guide rail, and the second curved guide rail through the first conductive plate and the second conductive plate to realize signal transmission, thereby improving video and audio acquisition efficiency and preventing campus bullying incidents.

[0006] Preferably, the guiding mechanism further includes two sets of fixed frames fixedly installed on the side of the device housing. Sliding blocks are slidably connected in the fixed frames. Guide grooves are respectively opened on the inner walls of the upper and lower sides of the straight guide rail, the first curved guide rail, and the second curved guide rail. Guide columns are fixedly connected to the fixed frames and slidably connected to the inner walls of the guide grooves. A rotating shaft is rotatably connected between the two sets of sliding blocks. A drive wheel is coaxially fixedly connected to the outer wall of the rotating shaft. The driving component is used to drive the drive wheel to rotate, so as to control the movement of the device housing and adjust the position of the camera and the audio collector through the driving component. The transmission mechanism includes a first conductive plate and a second conductive plate installed on the device housing.

[0007] Preferably, the driving component includes a drive motor fixedly installed inside the device housing. A worm gear is coaxially fixedly connected to the output end of the drive motor. A worm wheel is coaxially fixedly connected to one end of the rotating shaft. The worm wheel meshes with the worm gear and is rotatably connected to a set of sliding blocks. The worm gear passes through the set of sliding blocks and is movably connected to the inner wall of the sliding blocks. A first elastic element is fixedly connected to the side of the sliding block near the device housing. The end of the first elastic element away from the sliding block is fixedly connected to the inner wall of the fixed frame, which facilitates driving the drive wheel to rotate.

[0008] Preferably, the transmission mechanism further includes a first conductive plate and a second conductive plate fixedly installed on the inner wall of the middle portion of the straight guide rail, the first curved guide rail, and the second curved guide rail. Rollers are rotatably connected to both the first and second conductive plates. A first conductive ring and a second conductive ring are fixedly connected to the rollers on both sides. The first conductive ring can fit and abut against the first conductive plate, and the second conductive ring can fit and abut against the second conductive plate. The first conductive ring and the first conductive plate are electrically connected through the shaft of the roller, and the second conductive ring and the second conductive plate are electrically connected through the shaft of the roller. This facilitates the circuit connection between the first and second conductive plates and the straight guide rail, the first curved guide rail, and the second curved guide rail, thereby realizing signal transmission.

[0009] Preferably, a connecting plate is slidably connected in the horizontal direction inside the device housing, and a second elastic element is fixedly connected to the side of the connecting plate and fixedly connected to the device housing. The ends of the first conductive plate and the second conductive plate away from the roller are both fixedly connected to the side of the connecting plate. The first conductive plate and the second conductive plate are symmetrically distributed on both sides of the drive wheel, which facilitates pushing the rollers on both sides to abut against the first conductive plate and the second conductive plate respectively, thereby completing the circuit closed loop.

[0010] Preferably, the straight guide rail, the first curved guide rail, and the second curved guide rail are provided with snap-fit ​​grooves on their upper and lower sides respectively. The straight guide rail is provided with a first protective cover on its side, the first curved guide rail is provided with a second protective cover on its side, and the second curved guide rail is provided with a third protective cover on its side. The first protective cover, the second protective cover, and the third protective cover are provided with snap-fit ​​plates on their upper and lower sides respectively, which can snap into the snap-fit ​​grooves to facilitate the overall protection of the rail.

[0011] Preferably, the inner walls of the straight guide rail, the first curved guide rail, and the second curved guide rail are all fixedly connected with anti-slip pads. The anti-slip pads are located on the upper and lower sides of the first conductive sheet and the second conductive sheet. The outer wall of the drive wheel rolls in contact with the outer wall of the anti-slip pads. Mounting holes are provided on the anti-slip pads, the straight guide rail, the first curved guide rail, and the second curved guide rail to facilitate the installation of the entire track.

[0012] Preferably, a power supply module, a dialect recognition module, and a vibration sensing module are fixedly connected inside the device housing, and an alarm is fixedly connected to the device housing to facilitate dialect recognition and alarm, and to prevent the continuation of bullying and other situations.

[0013] Preferably, a connecting buckle is provided between the straight guide rail, the first curved guide rail, and the second curved guide rail. The connecting buckle is fixedly connected to the adjacent straight guide rail, the first curved guide rail, and the second curved guide rail by bolts, which facilitates the connection of the straight guide rail, the first curved guide rail, and the second curved guide rail to form a long track and avoids the occurrence of monitoring blind spots.

[0014] An intervention method for a campus blind spot bullying audio early warning device includes the following steps: S1. The straight guide rail, the first curved guide rail and the second curved guide rail are sequentially connected and installed at the top corner edge of the upper side of the wall to form a continuous long track, and multiple sets of the device shells are evenly arranged in the long track; S2. Collect and continuously monitor surrounding audio through the audio collector. When bullying words appear, control the drive unit to move the device housing along the long track to a position close to the sound source, and control the camera to take pictures for evidence. S3. By connecting the first conductive plate and the second conductive plate with the straight guide rail, the first curved guide rail and the second curved guide rail through a circuit, the signal transmission operation is realized, and an alarm is issued in real time during evidence collection and identification to prevent the bullying from continuing.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a campus blind spot bullying audio early warning device and intervention method, which solves the problem that the fixed acquisition positions of video and audio in existing campus bullying early warning devices affect the collection efficiency and subsequent processing efficiency. By connecting and combining a straight guide rail, a first curved guide rail, and a second curved guide rail into a long track, which is arranged at the top corner of the campus wall, the device housing is controlled by a drive component to move along the long track, adjusting the position of the camera and audio acquisition device, improving the flexibility and stability of the acquisition, and reducing bullying incidents in campus blind spots. The long track and the device housing are connected by a transmission mechanism to achieve stable signal transmission. The length of the straight guide rail can be cut and spliced ​​as needed. The device is easy to assemble and disassemble, and has low practical maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural exploded view of the guiding mechanism of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a partial structural diagram of the guiding mechanism of the present invention; Figure 5 for Figure 4 Enlarged view of region B in the middle; Figure 6 This is a partial structural diagram of the transmission mechanism of the present invention; Figure 7 This is a partial structural cross-sectional view of the guiding mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of region C; Figure 9 This is a partial structural exploded view of the driving component of the present invention; Figure 10 This is a partial structural cross-sectional view of the driving component of the present invention; Figure 11 for Figure 10 Enlarged view of region D in the middle; Figure 12 This is a schematic diagram of the internal structure of the device housing of the present invention.

[0017] In the diagram: 1-Device housing; 2-Camera; 3-Audio acquisition unit; 4-Straight guide rail; 5-First curved guide rail; 6-Second curved guide rail; 7-Driver; 8-First conductive plate; 9-Second conductive plate; 10-Fixing frame; 11-Sliding block; 12-Guide groove; 13-Guide column; 14-Rotating shaft; 15-Drive wheel; 16-Drive motor; 17-Worm; 18-Worm wheel; 19-First elastic element; 20-First conductive sheet; 21-Second conductive sheet; 22-Roller; 23-First conductive ring; 24-Second conductive ring; 25-Connecting plate; 26-Second elastic element; 27-Snap-fit ​​groove; 28-First protective cover; 29-Second protective cover; 30-Third protective cover; 31-Snap-fit ​​plate; 33-Anti-slip pad; 34-Mounting hole; 35-Power supply module; 36-Dialect recognition module; 37-Vibration sensing module; 38-Alarm; 39-Connecting buckle. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-12 This invention provides a technical solution: a campus blind spot bullying audio early warning device, comprising a device housing 1, a guiding mechanism, and a transmission mechanism. A camera 2 is rotatably connected inside the device housing 1, an audio collector 3 is fixedly connected inside the device housing 1, and a power supply module 35, a dialect recognition module 36, and a vibration sensing module 37 are fixedly connected inside the device housing 1. An alarm 38 is fixedly connected to the device housing 1. The guiding mechanism includes a straight guide rail 4 installed on the side of the device housing 1, with a first curved guide rail 5 and a second curved guide rail 6 at each end of the straight guide rail 4. The first curved guide rail 5 is used for installation at the corner of a wall. The second curved guide rail 6 is used for installation at the external corner of the wall. The device housing 1 is provided with a drive component 7 for controlling the movement of the device housing 1 along the straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6. The guiding mechanism can control the movement of the device housing 1 through the drive component 7 to adjust the position of the camera 2 and the audio collector 3. The transmission mechanism includes a first conductive plate 8 and a second conductive plate 9 installed on the device housing 1. The transmission mechanism can be electrically connected to the straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6 through the first conductive plate 8 and the second conductive plate 9 to realize the signal transmission operation.

[0020] Please see Figures 4-12The guiding mechanism shown in the figure also includes two sets of fixed frames 10 fixedly installed on the side of the device housing 1. Sliding blocks 11 are slidably connected inside the fixed frames 10. Guide grooves 12 are respectively opened on the inner walls of the straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6 on both the upper and lower sides. Guide columns 13 are fixedly connected to the fixed frames 10 and slidably connected to the inner walls of the guide grooves 12. A rotating shaft 14 is rotatably connected between the two sets of sliding blocks 11. A drive wheel 15 is coaxially fixedly connected to the outer wall of the rotating shaft 14. The driving component 7 is used to drive the drive wheel 15 to rotate. The driving component 7 includes a fixedly installed frame 10. The drive motor 16 inside the housing 1 is preferably an LD60 micro motor. The output end of the drive motor 16 is coaxially fixedly connected to a worm gear 17. One end of the rotating shaft 14 is coaxially fixedly connected to a worm wheel 18. The worm wheel 18 meshes with the worm gear 17. The worm wheel 18 is rotatably connected to a set of sliding blocks 11. The worm gear 17 passes through the set of sliding blocks 11 and is movably connected to the inner wall of the sliding blocks 11. A first elastic element 19 is fixedly connected to the side of the sliding block 11 near the housing 1. The end of the first elastic element 19 away from the sliding block 11 is fixedly connected to the inner wall of the fixed frame 10.

[0021] Please see Figures 6-11 The transmission mechanism shown in the figure also includes a first conductive plate 20 and a second conductive plate 21 fixedly installed on the inner wall of the middle part of the straight guide rail 4, the first curved guide rail 5 and the second curved guide rail 6. Rollers 22 are rotatably connected to the first conductive plate 8 and the second conductive plate 9 respectively. A first conductive ring 23 and a second conductive ring 24 are fixedly connected to the rollers 22 on both sides respectively. The first conductive ring 23 can fit and abut against the first conductive plate 20, and the second conductive ring 24 can fit and abut against the second conductive plate 21. The first conductive ring 23 and the first conductive plate 8 are electrically connected through the shaft of the roller 22, and the second conductive ring 24 and the second conductive plate 9 are electrically connected through the shaft of the roller 22. A connecting plate 25 is slidably connected in the horizontal direction inside the device housing 1. A second elastic element 26 fixedly connected to the device housing 1 is fixedly connected to the side of the connecting plate 25. The ends of the first conductive plate 8 and the second conductive plate 9 away from the roller 22 are fixedly connected to the side of the connecting plate 25. The first conductive plate 8 and the second conductive plate 9 are symmetrically distributed on both sides of the drive wheel 15.

[0022] Please see Figures 1-8The straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6 shown in the diagram are each provided with a locking groove 27 on their upper and lower sides. The straight guide rail 4 has a first protective cover 28 on its side, the first curved guide rail 5 has a second protective cover 29 on its side, and the second curved guide rail 6 has a third protective cover 30 on its side. The first protective cover 28, the second protective cover 29, and the third protective cover 30 are each provided with a locking plate 31 on their upper and lower sides that can engage with the locking groove 27. The inner walls of the straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6... Each of the components is fixedly connected with an anti-slip pad 33, which is located on the upper and lower sides of the first conductive sheet 20 and the second conductive sheet 21. The outer wall of the drive wheel 15 rolls in contact with the outer wall of the anti-slip pad 33. Mounting holes 34 are respectively opened on the anti-slip pad 33, the straight guide rail 4, the first curved guide rail 5 and the second curved guide rail 6. A connecting buckle 39 is provided between the straight guide rail 4, the first curved guide rail 5 and the second curved guide rail 6. The connecting buckle 39 is fixedly connected to the adjacent straight guide rail 4, the first curved guide rail 5 and the second curved guide rail 6 by bolts.

[0023] Please see Figures 1-12 The intervention method for a campus blind spot bullying audio early warning device shown in the diagram includes the following steps: S1. The straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6 are connected and installed sequentially at the top corner edge of the upper side of the wall to form a continuous long track. Multiple sets of device shells 1 are evenly arranged in the long track. S2. Collect and continuously monitor surrounding audio through audio collector 3. When bullying words appear, control drive 7 to move device housing 1 along long track to a position close to the sound source, and control camera 2 to take pictures and collect evidence. S3. The first conductive plate 8 and the second conductive plate 9 are connected to the straight guide rail 4, the first curved guide rail 5 and the second curved guide rail 6 to realize the signal transmission operation, and issue an alarm in real time when evidence collection and identification are carried out to prevent the bullying from continuing.

[0024] Working Principle: The design and installation are based on the top corner of the wall. First curved guide rails 5 and second curved guide rails 6 are installed at the same height at the inside and outside corners, respectively. Straight guide rails 4 of appropriate length are cut according to the straight-line distance between them. Both ends of the straight guide rails 4 are fixedly connected to the corresponding first curved guide rail 5 or second curved guide rail 6 using connecting buckles 39 and bolts. Expansion screws are inserted into the mounting holes 34 and the wall to fix the straight guide rails 4, first curved guide rails 5, and second curved guide rails 6. Simultaneously, the first conductive plates 20 and second conductive plates 21 on adjacent guide rails are connected to establish a circuit, allowing the first conductive plates 20 and second conductive plates 21 to transmit electrical signals. The first conductive plates 20 and second conductive plates 21 are insulated from each other. Multiple sets of device housings 1 are evenly arranged on the straight guide rails 4 as needed. The drive wheel 15 rolls in contact with the anti-slip pad 33, lifting the drive... For stability, the rollers 22 on both sides are pushed by the second elastic element 26 and closely adhere to the outer walls of the first conductive sheet 20 and the second conductive sheet 21. This allows the first conductive ring 23 to transmit the signal from the first conductive sheet 20 to the first conductive plate 8, which is then input into the device housing 1 for power supply. The second conductive ring 24 connects the second conductive sheet 21 to the second conductive plate 9, forming a closed loop to complete the power supply operation to the device housing 1. The device housing 1 is equipped with a controller and circuit board to control the working status of the camera 2, audio acquisition device 3, dialect recognition module 36, vibration sensing module 37, and alarm 38. By engaging the snap-fit ​​plates 31 on the first protective cover 28, the second protective cover 29, and the third protective cover 30 with the snap-fit ​​grooves 27 on the straight guide rail 4, the first curved guide rail 5, and the second curved guide rail 6, the device housing 1 and the track as a whole are protected, reducing external interference such as dust.

[0025] The power supply module 35 can store a certain amount of power, ensuring that the device can continue to operate for a period of time when the circuit is interrupted, thus preventing the device from disconnecting. By setting up a first protective cover 28, a second protective cover 29, and a third protective cover 30 to prevent people from knowing the exact location of the camera 2 and directly damaging it, even if part of the track is damaged and the power is cut off, the device housing 1 can still operate through the backup power supply module 35, moving the camera 2 to the damaged location to capture evidence. After collecting evidence, it leaves the location and transmits video and audio files to the monitoring center for storage via built-in Bluetooth or wireless network. This device can replace traditional video surveillance equipment. In standby mode, it monitors the required location using multiple evenly arranged cameras 2 on the device housing 1. The built-in audio acquisition unit 3 can collect sound and, in conjunction with the dialect recognition module 36, capture and recognize bullying words such as verbs like "hit" and "kneel," as well as some abusive words. The dialect recognition module 36 can pre-collect and store commonly used local dialects and then compare them with the collected sounds. The vibration sensing module 37 can detect whether the equipment has been damaged and can also detect the vibration of the campus walls, predict disasters such as earthquakes, and issue an alarm through the alarm 38.

[0026] When the audio collector 3 detects words suspected of being bullying, it activates the drive motor 16 to rotate the worm gear 17. The worm gear 17 drives the worm wheel 18, causing the rotating shaft 14 and the drive wheel 15 to rotate. Due to the push of the first elastic elements 19 on both sides, the sliding block 11 can always drive the rotating shaft 14 and the drive wheel 15 to contact the anti-slip pad 33, improving the stability during the drive process. By controlling the rotation direction and speed of the drive motor 16, the movement direction and speed of the drive wheel 15 driving the device housing 1 can be adjusted. It stops when it approaches the sound source and controls the camera 2 to rotate to capture evidence of the sound source. The guide column 13 slides in the guide groove 12 to stably limit the position of the device housing 1. The device housing 1 can slide and switch between the first curved guide rail 5 and the second curved guide rail 6. Under the push of the rollers 22 on both sides, the device housing 1 always maintains a relatively centered position to avoid swinging and shaking. When setting up the evidence capture... After a period of time, if the data is analyzed by the control center and confirmed as bullying, the alarm 38 will be triggered to sound an alarm and stop the bullying incident from continuing. The transmission is made more stable by setting the worm gear 18 and the worm 17. At the same time, the position of the worm 17 is fixed, and the worm gear 18 can always maintain the meshing transmission state with the worm 17 as it slides with the sliding block 11. The first elastic element 19 and the second elastic element 26 have a large thrust and will not swing back and forth. This ensures that the drive wheel 15 and the rollers 22 on both sides can always stick tightly to the anti-slip pad 33 or the first conductive plate 20 and the second conductive plate 21. The second elastic element 26 can also be set as two sets that push the first conductive plate 8 and the second conductive plate 9 on both sides respectively. However, the two sets of second elastic elements 26 need to maintain the same thrust and have a large thrust. During monitoring and evidence collection, multiple sets of device housings 1 around can be moved together to the vicinity of the sound source to adjust different shooting positions and complete multi-angle shooting and evidence collection operations.

[0027] It is worth noting that the main body of the first protective cover 28, the second protective cover 29, and the third protective cover 30 (hereinafter collectively referred to as the protective cover) of this device is made of single-sided frosted high-transparency flame-retardant acrylic sheet, which is cold-bent and integrally formed. The outer surface of the shell is sprayed with a matte light-colored anti-UV electrostatic coating that matches the color of the campus wall / corner, such as white or light gray. The connection between the protective cover and the track is sealed with a food-grade silicone gasket for waterproofing and dustproofing. The outer frosted diffuse reflection and the inner high-transparency optical grade structure make it impossible to observe the position and status of the camera 2 inside the protective cover from the outside, achieving privacy and concealment. The inner light transmittance is high. ≥92%, no visual distortion, ensuring that camera 2 and audio collector 3 clearly collect external audio and video information, with no shooting blind spots. The matte anti-UV electrostatic coating can reduce the reflectivity of the shell surface to ≤15%, making the protective shell blend into the campus building wall, further improving concealment, while preventing static electricity from attracting dust and reducing later cleaning and maintenance costs. Since the sounds and actions of bullying are generally loud, the protective cover can still ensure sufficient collection of sound and video. The first elastic element 19 and the second elastic element 26 can be replaced by existing spring-like structures.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A campus blind spot bullying audio early warning device, characterized in that, include: The device housing (1) has a camera (2) rotatably connected inside the device housing (1) and an audio collector (3) fixedly connected inside the device housing (1). Also includes: The guiding mechanism includes a straight guide rail (4) installed on the side of the device housing (1). The two ends of the straight guide rail (4) are respectively provided with a first curved guide rail (5) and a second curved guide rail (6). The first curved guide rail (5) is used to be installed at the inside corner of the wall, and the second curved guide rail (6) is used to be installed at the outside corner of the wall. The device housing (1) is provided with a driving member (7) for controlling the device housing (1) to move along the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6). The guiding mechanism can control the device housing (1) to move through the driving member (7) and adjust the position of the camera (2) and the audio collector (3). The transmission mechanism includes a first conductive plate (8) and a second conductive plate (9) mounted on the device housing (1). The transmission mechanism can be connected to the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6) through the first conductive plate (8) and the second conductive plate (9) to realize signal transmission operation.

2. The campus blind spot bullying audio early warning device according to claim 1, characterized in that: The guiding mechanism also includes two sets of fixed frames (10) fixedly installed on the side of the device housing (1). Sliding blocks (11) are slidably connected in the fixed frames (10). Guide grooves (12) are respectively opened on the inner walls of the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6). Guide columns (13) are fixedly connected to the fixed frames (10) and slidably connected to the inner walls of the guide grooves (12). A rotating shaft (14) is rotatably connected between the two sets of sliding blocks (11). A drive wheel (15) is coaxially fixedly connected to the outer wall of the rotating shaft (14). The driving component (7) is used to drive the drive wheel (15) to rotate.

3. The campus blind spot bullying audio early warning device according to claim 2, characterized in that: The driving component (7) includes a drive motor (16) fixedly installed inside the device housing (1). The output end of the drive motor (16) is coaxially fixedly connected to a worm (17). One end of the rotating shaft (14) is coaxially fixedly connected to a worm wheel (18). The worm wheel (18) meshes with the worm (17). The worm wheel (18) is rotatably connected to a set of sliding blocks (11). The worm (17) passes through a set of sliding blocks (11) and is movably connected to the inner wall of the sliding blocks (11). A first elastic element (19) is fixedly connected to the side of the sliding block (11) near the device housing (1). The end of the first elastic element (19) away from the sliding block (11) is fixedly connected to the inner wall of the fixed frame (10).

4. The campus blind spot bullying audio early warning device according to claim 3, characterized in that: The transmission mechanism further includes a first conductive plate (20) and a second conductive plate (21) fixedly installed on the inner wall of the middle part of the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6). Rollers (22) are rotatably connected to the first conductive plate (8) and the second conductive plate (9). A first conductive ring (23) and a second conductive ring (24) are fixedly connected to the rollers (22) on both sides. The first conductive ring (23) can fit and abut against the first conductive plate (20), and the second conductive ring (24) can fit and abut against the second conductive plate (21). The first conductive ring (23) and the first conductive plate (8) are connected by circuit through the shaft of the roller (22), and the second conductive ring (24) and the second conductive plate (9) are connected by circuit through the shaft of the roller (22).

5. The campus blind spot bullying audio early warning device according to claim 4, characterized in that: A connecting plate (25) is slidably connected in the horizontal direction inside the device housing (1). A second elastic element (26) is fixedly connected to the side of the connecting plate (25) and fixedly connected to the device housing (1). The ends of the first conductive plate (8) and the second conductive plate (9) away from the roller (22) are fixedly connected to the side of the connecting plate (25). The first conductive plate (8) and the second conductive plate (9) are symmetrically distributed on both sides of the drive wheel (15).

6. The campus blind spot bullying audio early warning device according to claim 1, characterized in that: The straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6) are provided with snap-fit ​​grooves (27) on the upper and lower sides respectively. The straight guide rail (4) is provided with a first protective cover (28) on the side, the first curved guide rail (5) is provided with a second protective cover (29) on the side, and the second curved guide rail (6) is provided with a third protective cover (30) on the side. The first protective cover (28), the second protective cover (29) and the third protective cover (30) are provided with snap-fit ​​plates (31) on the upper and lower sides respectively, which can snap-fit ​​with the snap-fit ​​grooves (27).

7. The campus blind spot bullying audio early warning device according to claim 4, characterized in that: The inner walls of the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6) are all fixedly connected with anti-slip pads (33). The anti-slip pads (33) are located on the upper and lower sides of the first conductive sheet (20) and the second conductive sheet (21). The outer wall of the drive wheel (15) rolls in contact with the outer wall of the anti-slip pads (33). Mounting holes (34) are respectively opened on the anti-slip pads (33), the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6).

8. The campus blind spot bullying audio early warning device according to claim 1, characterized in that: The device housing (1) is fixedly connected to a power supply module (35), a dialect recognition module (36) and a vibration sensing module (37), and an alarm (38) is fixedly connected to the device housing (1).

9. The campus blind spot bullying audio early warning device according to claim 1, characterized in that: A connecting buckle (39) is provided between the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6). The connecting buckle (39) is fixedly connected to the adjacent straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6) by bolts.

10. An intervention method for a campus blind spot bullying audio early warning device based on any one of claims 1-9, characterized in that, Includes the following steps: S1. The straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6) are sequentially connected and installed at the top corner edge of the upper side of the wall to form a continuous long track, and multiple sets of the device shells (1) are evenly arranged in the long track. S2. Collect surrounding audio through the audio collector (3) and continuously monitor it. When bullying words appear, control the drive unit (7) to make the device housing (1) move along the long track to a position close to the sound source, and control the camera (2) to take pictures and collect evidence. S3. The first conductive plate (8) and the second conductive plate (9) are connected to the straight guide rail (4), the first curved guide rail (5) and the second curved guide rail (6) to realize the signal transmission operation, and issue an alarm in real time when evidence collection and identification is carried out to avoid the bullying from continuing.

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