Behavior recognition monitoring equipment for campus security and protection

Abstract

The invention relates to the technical field of behavior monitoring, in particular to behavior recognition monitoring equipment for campus security and protection, which comprises a camera, a fixing frame is fixedly connected to the outer wall of the bottom of the camera, a wind direction sensor is fixedly connected to the outer wall of the bottom of the fixing frame, and a controller is fixedly connected to the inner wall of the fixing frame. The pepper spray is sprayed out through the spray head, the pepper spray has no fatal injury to human bodies but has strong irritation, strong physiological reaction can be generated to violent students in a short time, the students are forced to stop violent behaviors immediately, and irretrievable injury caused by continuous violent behaviors among the students due to the time of monitoring personnel rushing to the scene is avoided. Correspondingly, the existence of the pepper water plays a deterrent role on the students, so that the students understand that the violent behaviors are not only warned by the warning lamp, but also possibly face more direct intervention measures, thereby enhancing the intolerance of the students to campus rules, and reducing the occurrence of the violent behaviors.

Description

Technical Field

[0001] The present invention belongs to the technical field of behavior monitoring, and in particular relates to a behavior recognition monitoring device for campus security. Background Art

[0002] Behavior recognition monitoring equipment used for campus security is an intelligent monitoring system that integrates advanced video analysis technology and artificial intelligence algorithms. It is designed to monitor, identify and analyze the behavioral patterns of people on campus in real time to prevent potential security threats and ensure the safety of teachers and students.

[0003] However, the conventional device still has the following problems when used:

[0004] The patent application publication number CN218032499U discloses an automatic and timely alarm type security monitoring system for campuses. A group of connecting blocks are fixedly connected by two groups of connecting ropes on both sides of the fixed plate, and two groups of fixing grooves are opened on both sides of the fixed plate. A threaded head is fixedly connected to one end of the connecting rope, and the threaded head is adapted to the size and position of the fixing groove, making the connection between the connecting rope and the fixed plate simple and convenient. At the same time, the connecting rope is a steel rope, and the length of the connecting rope can be changed according to demand. In addition, two groups of threaded grooves are provided through the front end surfaces of the fixed plate and the connecting block, so that the device can be fixed to any place with bolts through the fixed plate, connecting rope and connecting block, greatly improving the application range of the device installation.

[0005] In existing technologies, cameras are widely used as campus personnel monitoring equipment. Their working principle is to transmit the captured images to the screen in real time for monitoring personnel to view. However, when violent behavior between students is discovered through the camera, it takes a certain amount of time for the staff to rush to the scene. During this time, irreparable harm may occur and it may be impossible to stop it in time.

[0006] Therefore, we need a behavior recognition monitoring device for campus security to solve the problem that monitoring personnel cannot arrive at the scene in time to stop violent behavior. It can indirectly intervene in violent behavior between students to gain time for monitoring personnel to arrive at the scene. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a behavior recognition monitoring device for campus security, which has the advantage of indirectly intervening in violent behavior among students and gaining time for monitoring personnel to arrive at the scene.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a behavior recognition monitoring device for campus security, comprising a camera, wherein the outer wall of the bottom of the camera is fixedly connected to a fixing bracket, the outer wall of the bottom of the fixing bracket is fixedly connected to a wind direction sensor, the inner wall of the fixing bracket is fixedly connected to a controller, the outer wall of the front of the fixing bracket is provided with a square hole, the inner wall of the square hole is fixedly connected to a mounting bracket 1, the interior of the mounting bracket 1 is fixedly connected to an alarm light, the interior of the fixing bracket is provided with a solution cavity, the outer wall of the top of the solution cavity is provided with a feed hole, a sealing rod is movably inserted into the interior of the feed hole, an injection mechanism is provided inside the fixing bracket, and an angle adjustment mechanism is provided inside the fixing bracket; the injection mechanism comprises a water pump, and the outer wall of the bottom of the water pump is fixedly connected to the lower part of the inner wall of the fixing bracket; the angle adjustment mechanism comprises a motor, and the outer wall of the bottom of the motor is fixedly connected to the lower part of the inner wall of the fixing bracket.

[0009] Preferably, the input end of the water pump is fixedly connected to a water pumping pipe, the outer wall of the water pumping pipe is fixedly connected to the inner wall of the solution cavity, and a pipe head is connected below the water pumping pipe, and a water inlet hole is opened on the outer wall of the pipe head.

[0010] Preferably, the input end of the water pump is fixedly connected to a telescopic tube, the outer wall of one end of the telescopic tube is fixedly connected to a nozzle, and the outer wall of one end of the nozzle is fixedly connected to a nozzle.

[0011] Preferably, a circular hole is opened on the outer wall of the top of the nozzle, two fixing plates are fixedly connected to both sides of the outer wall of the top of the nozzle, and metal vibration diaphragms are fixedly connected to the outer walls on opposite sides of the two fixing plates.

[0012] Preferably, the outer wall of the bottom of the water pumping pipe is fixedly connected to the second mounting bracket, the inner bottom of the second mounting bracket is rotatably connected to a rotating plate, and the outer wall of the bottom of the rotating plate is rotatably connected to the inner top of the pipe head.

[0013] Preferably, the outer wall of the bottom of the rotating plate is fixedly connected to a fixing rod 1, the outer wall of the bottom of the fixing rod 1 is fixedly connected to a force-bearing leaf, the outer wall of the rotating plate is fixedly connected to a stirring rod, and the outer wall of the stirring rod is fixedly connected to a soft rod.

[0014] Preferably, the output end of the motor is fixedly connected to a rotating wheel, a side of the outer wall of the top of the rotating wheel deviating from the axis is fixedly connected to a force-bearing rod, a second fixing rod is fixedly connected below the inner wall of the fixed frame, the outer wall of the second fixing rod is rotatably connected to an angle frame, a sliding groove is provided on the outer wall of the bottom of the angle frame, and the inside of the sliding groove is in movably contact with the outer wall of the force-bearing rod.

[0015] Preferably, a fixing plate 1 is fixedly connected to the outer wall of the top of the angle frame, a fixing hole is opened on the outer wall of one side of the fixing plate 1, and the inner wall of the fixing hole is fixedly connected to the outer wall of the nozzle.

[0016] Preferably, one side of the inner wall of the fixed frame is fixedly connected to an arc-shaped shell, the outer wall of one end of the angle frame is fixedly connected to a guide block, the outer wall of the guide block is slidingly connected to the inside of the arc-shaped shell, and the upper and lower sides of the guide block are internally rotatably connected to dust-collecting balls.

[0017] Preferably, a strip groove is provided on the outer wall of the front side of the fixing frame, the inner part of the strip is in movable contact with the outer wall of the nozzle, a track frame is fixedly connected to the lower part of the inner wall of the strip groove, the outer wall of the bottom of the nozzle is fixedly connected to the support seat, the outer wall of the bottom of the support seat is rotatably connected to an elliptical cylinder, and the outer wall of the elliptical cylinder is slidably connected to the inner part of the track frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Pepper spray sprayed through the nozzle is not fatal to the human body but is highly irritating. It can produce a strong physiological reaction to violent students in a short period of time, forcing them to immediately stop violent behavior, avoiding the time when monitoring personnel rush to the scene, and the continuation of violence between students, causing irreparable damage. Accordingly, the presence of pepper spray itself has a deterrent effect on students, making them understand that violent behavior will not only be warned by alarm lights, but may also face more direct intervention measures, thereby enhancing their respect for campus rules and reducing the occurrence of violent behavior. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 This is a schematic structural diagram of the warning light of the present invention.

[0022] Figure 3 It is a schematic diagram of the sealing rod structure of the present invention.

[0023] Figure 4 Schematic diagram of the solution chamber structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the water pumping pipe structure of the present invention.

[0025] Figure 6 for Figure 4 Enlarged structural diagram at point A in the middle.

[0026] Figure 7 It is a schematic diagram of the track frame structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the nozzle structure of the present invention.

[0028] Figure 9 Schematic diagram of the motor structure of the present invention.

[0029] Figure 10 It is a schematic diagram of the stressed leaf structure of the present invention.

[0030] Figure 11 for Figure 4 Enlarged structural diagram at point B in the middle.

[0031] Figure 12 for Figure 4 Enlarged structural diagram at point C in the middle.

[0032] In the figure: 1. Camera; 2. Fixing frame; 21. Sealing rod; 22. Solution chamber; 23. Water pump; 24. Suction pipe; 25. Telescopic pipe; 26. Nozzle; 27. Nozzle; 28. Circular hole; 29. ​​Tube head; 3. Controller; 4. Wind direction sensor; 5. Alarm light; 51. Mounting frame 1; 6. Mounting frame 2; 61. Rotating plate; 62. Water inlet hole; 63. Stirring rod; 64. Soft rod; 65. Fixing rod 1; 66. Forced blade; 7. Motor; 71. Fixing rod 2; 72. Forced rod; 73. Angle frame; 731. Guide block; 732. Dust ball; 74. Fixing plate 1; 75. Arc shell; 76. Rotating wheel; 8. Track frame; 81. Support seat; 82. Elliptical cylinder; 9. Fixing plate 2; 91. Metal vibrating diaphragm. DETAILED DESCRIPTION

[0033] In order to clearly and completely describe the objectives and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example 1, please refer to Figures 1 to 12The present invention provides a technical solution for behavior recognition monitoring equipment for campus security: it includes a camera 1, the outer wall of the bottom of the camera 1 is fixedly connected to a fixing frame 2, the outer wall of the bottom of the fixing frame 2 is fixedly connected to a wind direction sensor 4, the inner wall of the fixing frame 2 is fixedly connected to a controller 3, the outer wall of the front of the fixing frame 2 is provided with a square hole, the inner wall of the square hole is fixedly connected to a mounting frame 51, the interior of the mounting frame 51 is fixedly connected to an alarm light 5, the interior of the fixing frame 2 is provided with a solution cavity 22, the outer wall of the top of the solution cavity 22 is provided with a feed hole, the interior of the feed hole is movably connected with a sealing rod 21, the interior of the fixing frame 2 is provided with an injection mechanism, the interior of the fixing frame 2 is provided with an angle adjustment mechanism, the injection mechanism includes a water pump 23, the outer wall of the bottom of the water pump 23 is fixedly connected to the lower part of the inner wall of the fixing frame 2, the angle adjustment mechanism includes a motor 7, the outer wall of the bottom of the motor 7 is fixedly connected to the lower part of the inner wall of the fixing frame 2.

[0035] The behavior recognition module inside the camera 1 will simultaneously transmit the recognition information to the monitoring room and the controller 3. The monitoring personnel in the monitoring room will rush to the scene by observing the screen information to stop the violence between students, minimize the physical harm to students, and ensure the personal safety of students. After receiving the violence information from the camera 1, the controller 3 will immediately control the alarm light 5 inside the mounting frame 51 to light up. The lit alarm light 5 will remind students to stop violent behavior, make students afraid, and avoid students' unscrupulous use of violence. Correspondingly, the lighting of the alarm light 5 will make them realize that their behavior has been monitored and they may face consequences, so they will be cautious and dare not easily commit violent acts, thereby reducing the occurrence of violent incidents from the source.

[0036] Example 2: Based on Example 1, the input end of the water pump 23 is fixedly connected to a water pumping pipe 24, the outer wall of the water pumping pipe 24 is fixedly connected to the inner wall of the solution chamber 22, and the bottom of the water pumping pipe 24 is connected to a pipe head 29, and the outer wall of the pipe head 29 is provided with a water inlet hole 62. The input end of the water pump 23 is fixedly connected to a telescopic tube 25, the outer wall of one end of the telescopic tube 25 is fixedly connected to a nozzle 26, and the outer wall of one end of the nozzle 26 is fixedly connected to a nozzle 27.

[0037] The pepper spray sprayed by the nozzle 27 is non-lethal to the human body but has a strong irritation, which can produce a strong physiological reaction to the violent students in a short period of time, causing eye stinging, respiratory discomfort, etc., forcing them to immediately stop the violent behavior, thus avoiding the time when the monitoring personnel rush to the scene, and the continuation of the violent behavior between students, causing irreparable damage. Accordingly, the presence of the pepper spray itself has a deterrent effect on the students, making them understand that violent behavior will not only be warned by the alarm light 5, but may also face more direct intervention measures, thereby enhancing their respect for campus rules and reducing the occurrence of violent behavior.

[0038] Example three, based on Example two, the outer wall of the bottom of the water pumping pipe 24 is fixedly connected to the mounting frame 2 6, the internal rotation of the bottom of the mounting frame 2 6 is connected to the rotating plate 61, the outer wall of the bottom of the rotating plate 61 is connected to the internal rotation of the top of the pipe head 29, the outer wall of the bottom of the rotating plate 61 is fixedly connected to the fixing rod 1 65, the outer wall of the bottom of the fixing rod 1 65 is fixedly connected to the force-bearing leaf 66, the outer wall of the rotating plate 61 is fixedly connected to the stirring rod 63, and the outer wall of the stirring rod 63 is fixedly connected to the soft rod 64.

[0039] By rotating the stirring rod 63 inside the solution chamber 22, the pepper water around the tube head 29 can be stirred, thereby preventing the pepper water from precipitating around the tube head 29 and making the concentration of the pepper water different. Accordingly, by stirring the pepper water, the concentration of the pepper water in the solution chamber 22 is kept uniform. The uniform concentration can ensure that the pepper water sprayed each time has the same stimulation intensity, and there will be no situation where some pepper waters have poor stimulation effects due to concentration differences, thereby ensuring an effective deterrent and restraining effect on violent students, and further preventing the pepper water precipitation from causing blockage in the tube head 29 and affecting the normal extraction and spraying of the pepper water. Through stirring, the precipitation of particulate matter in the pepper water is reduced, the possibility of blockage in the tube head 29 is reduced, and the normal operation of equipment such as the water pump 23 and the water suction pipe 24 is guaranteed.

[0040] Embodiment 4, based on embodiment 3, a circular hole 28 is opened on the outer wall of the top of the nozzle 27, and two fixing plates 9 are fixedly connected to the two sides of the outer wall of the top of the nozzle 27, and a metal vibration diaphragm 91 is fixedly connected to the outer wall on the opposite side of the two fixing plates 9.

[0041] The pepper spray is sprayed upward in the form of a water column through the circular hole 28 provided on the nozzle 27. The water column continuously sprays onto the metal vibrating diaphragm 91, exerting a continuous impact force on the metal vibrating diaphragm 91, causing the metal vibrating diaphragm 91 to vibrate, thereby pushing the surrounding air to form sound waves, which will form a relatively harsh and attention-grabbing sound. This sound will form an additional deterrent at the scene of a violent incident, making the violent students realize that violent behavior will not only face the stimulation of pepper spray, but will also be accompanied by a clear sound warning, further strengthening their awareness of the consequences of violent behavior and psychologically increasing their fear;

[0042] The fixed plates 29 provided on both sides of the metal vibrating diaphragm 91 can block the scattered pepper spray to a certain extent, reduce the pepper spray on the camera 1, and effectively avoid the blurring of the camera 1 lens, ensuring that the monitoring personnel can understand the on-site situation in real time through clear images, make accurate judgments and decisions in time, and provide strong support for subsequent processing.

[0043] The fifth embodiment, on the basis of the first embodiment, the output end of the motor 7 is fixedly connected to a rotating wheel 76, and the outer wall of the top of the rotating wheel 76 is fixedly connected to a force-bearing rod 72 on the side deviating from the axis. The lower part of the inner wall of the fixed frame 2 is fixedly connected to a fixing rod 2 71, and the outer wall of the fixing rod 2 71 is rotatably connected to an angle frame 73. The outer wall of the bottom of the angle frame 73 is provided with a sliding groove, and the interior of the sliding groove is in movable contact with the outer wall of the force-bearing rod 72. The outer wall of the top of the angle frame 73 is fixedly connected to a fixing plate 1 74, and the outer wall of one side of the fixing plate 1 74 is provided with a fixing hole. The inner wall of the fixing hole is fixedly connected to the outer wall of the nozzle 26, and one side of the inner wall of the fixed frame 2 is fixedly connected to an arc shell 75. The outer wall of one end of the angle frame 73 is fixedly connected to a guide block 731, and the outer wall of the guide block 731 is slidably connected to the interior of the arc shell 75. The upper and lower sides of the guide block 731 are rotatably connected to the dust-absorbing balls 732.

[0044] The wind direction sensor 4 can detect the wind direction in real time, and the controller 3 accurately calculates the influence of the wind direction on the trajectory of the pepper spray, and adjusts the angle of the spray mechanism so that the pepper spray can be accurately sprayed on the students who commit violence, thereby preventing spraying errors caused by wind direction interference, ensuring the effectiveness of stopping violent acts, and timely stopping the further escalation of violence. By accurately adjusting the spray angle, the pepper spray is prevented from being sprayed onto non-target areas due to the influence of wind direction, thereby reducing the waste of pepper spray.

[0045] Example 6. On the basis of Example 5, a strip groove is provided on the outer wall of the front of the fixing frame 2, the inner part of the strip is in movable contact with the outer wall of the nozzle 26, the track frame 8 is fixedly connected to the lower part of the inner wall of the strip groove, the outer wall of the bottom of the nozzle 26 is fixedly connected to the support seat 81, the outer wall of the bottom of the support seat 81 is rotatably connected to an elliptical cylinder 82, and the outer wall of the elliptical cylinder 82 is slidably connected to the inner part of the track frame 8.

[0046] The movement direction of the nozzle 26 is strictly limited by the limiting effect of the elliptical cylinder 82 and the track frame 8. When facing different wind directions and target positions, the nozzle 26 needs to accurately adjust the angle to ensure that the pepper spray is accurately sprayed on the students who commit violence. This limiting design prevents the nozzle 26 from directional deviation during the adjustment process, making the adjustment of the spray angle more precise and improving the effectiveness of the campus safety intervention system in curbing violent behavior.

[0047] The working principle and usage process of the present invention are as follows: when working, first, when the camera 1 recognizes that a violent incident has occurred inside the campus, the behavior recognition module inside the camera 1 will simultaneously transmit the recognition information to the monitoring room and the controller 3. The monitoring personnel in the monitoring room will rush to the scene by observing the screen information to stop the violent behavior between students, minimize the physical harm to students, and ensure the personal safety of students. After receiving the violent information from the camera 1, the controller 3 will immediately control the alarm light 5 inside the mounting frame 51 to light up. The lit alarm light 5 will remind students to stop violent behavior, make students afraid, and avoid students' unscrupulous use of violence. Correspondingly, by the lighting of the alarm light 5, they will realize that their behavior has been monitored and they may face consequences, so they will be cautious and dare not easily commit violent acts, thereby reducing the occurrence of violent incidents from the source.

[0048] If the students continue to use violence after the alarm light 5 is on, the controller 3 will control the water pump 23 to start, and then through the movement of the water pump 23, the pepper spray inside the solution chamber 22 will enter the inside of the water pump 24 through the water inlet 62, and then enter the inside of the nozzle 26 from the water pump 24, and finally be sprayed out through the nozzle 27. The pepper spray is not fatal to the human body but has a strong irritation. It can produce a strong physiological reaction to the violent students in a short time, causing eye stinging, respiratory discomfort, etc., forcing them to stop the violent behavior immediately, avoiding further escalation of violence, and preventing more serious consequences. Physical injury. When the monitoring personnel rush to the scene, the effect of pepper spray can delay the continuation of violent behavior between students and prevent irreparable damage from occurring before the monitoring personnel arrive. It avoids the continuation of violent behavior between students and causes irreparable damage while the monitoring personnel rush to the scene. Accordingly, the presence of pepper spray itself has a deterrent effect on students, making them understand that violent behavior will not only be warned by the alarm light 5, but may also face more direct intervention measures, thereby enhancing their respect for campus rules and reducing the occurrence of violent behavior.

[0049] Under the action of the water pump 23, negative pressure is generated inside the water pumping pipe 24 and the pipe head 29. Since the air pressure inside the pipe head 29 is lower than that inside the solution chamber 22, the chili water inside the solution chamber 22 quickly enters the interior of the pipe head 29 through the water inlet hole 62. The water entering the interior of the pipe head 29 through the water inlet hole 62 impacts the force-bearing leaf 66. The force-bearing leaf 66 rotates under the impact of the water flow. Then, through the rotation of the force-bearing leaf 66, due to the fixed connection between the force-bearing leaf 66 and the fixed rod 1 65, under the action of the force rotation of the force-bearing leaf 66, the fixed rod 1 65 drives the rotating plate 61 to rotate accordingly. Since the rotating plate 61 is rotatably connected to the mounting frame 2 6 and the pipe head 29, when the rotating plate 61 rotates, it cannot drive the mounting frame 2 6 and the pipe head 29 to rotate. Through the fixed connection between the rotating plate 61 and the stirring rod 63, the rotating plate 6 1 is driven to rotate the stirring rod 63, and then the stirring rod 63 rotates inside the solution chamber 22, so that the pepper water around the tube head 29 can be stirred, thereby preventing the pepper water from settling around the tube head 29 and making the concentration of the pepper water different. Accordingly, by stirring the pepper water, the concentration of the pepper water in the solution chamber 22 is kept uniform. The uniform concentration can ensure that the pepper water sprayed each time has the same stimulation intensity, and there will be no situation where some pepper waters have poor stimulation effects due to concentration differences, thereby ensuring an effective deterrent and restraining effect on violent students, and further preventing the pepper water from settling and causing the tube head 29 to be blocked, affecting the normal extraction and spraying of the pepper water. By stirring, the precipitation of particles in the pepper water is reduced, the possibility of clogging the tube head 29 is reduced, and the normal operation of equipment such as the water pump 23 and the water suction pipe 24 is ensured.

[0050] The centrifugal force generated by the rotation of the stirring rod 63 can swing the soft rod 64 up, and the swung soft rod 64 can increase the stirring range of the stirring rod 63. After the stirring range is expanded, the soft rod 64 can reach more areas in the solution chamber 22, and the chili water around the tube head 29 can be fully stirred, further ensuring that the components of the chili water are evenly distributed, preventing the occurrence of local concentrations that are too high or too low, and ensuring that the stimulation effect of the sprayed chili water is stable and consistent.

[0051] It should be noted that: by pulling out the sealing rod 21 from the feed hole, chili water can be added into the solution chamber 22.

[0052] The pepper spray can be sprayed upward in the form of a water column through the circular hole 28 provided on the nozzle 27. The water column is continuously sprayed onto the metal vibrating diaphragm 91, which will exert a continuous impact force on the metal vibrating diaphragm 91, causing the metal vibrating diaphragm 91 to vibrate, thereby pushing the surrounding air to form sound waves, which will form a relatively harsh and eye-catching sound. This sound will form an additional deterrent at the scene of the violent incident, making the violent students realize that violent behavior will not only face the stimulation of pepper spray, but will also be accompanied by obvious sound warnings, further strengthening their understanding of the consequences of violent behavior, psychologically increasing their fear, and thus being more likely to stop violent behavior. Sound waves can propagate in the air. Compared with simply lighting up the alarm light 5, the sound can propagate to a farther distance. This means that not only the students at the scene can hear it, but people within a certain range of the surrounding area can also be alerted, making more people aware that a violent incident is occurring on campus, which helps to create a broader deterrent atmosphere. For monitoring personnel rushing to the scene, the sound waves can serve as a guiding signal to help them locate the specific location of the violent incident more quickly.

[0053] Due to the high pressure of the water column, the water column hitting the metal vibrating diaphragm 91 is easy to rebound, causing the water to splash everywhere, thereby increasing the spray range of the nozzle 27, so that the pepper spray is more comprehensively sprayed on the students who commit violence, and correspondingly improving the coverage of the pepper spray on the violent students, ensuring that more perpetrators are stimulated by the pepper spray, thereby more effectively stopping violent behavior and preventing the further escalation and spread of violence. The fixed plates 29 set on both sides of the metal vibrating diaphragm 91 are used to block the scattered pepper spray to a certain extent, reducing the pepper spray on the camera 1, effectively avoiding the blurring of the camera 1 lens, and ensuring that the monitoring personnel can understand the situation on the scene in real time through clear pictures, make accurate judgments and decisions in time, and provide strong support for subsequent processing.

[0054] In a windy environment, the wind direction is detected by the wind direction sensor 4, and the detection result is transmitted to the controller 3. After receiving the data from the wind direction sensor 4, the controller 3 analyzes the wind direction and calculates the degree of influence of the deflection angle of the wind direction on the pepper spray trajectory. In combination with the target recognition result and the wind direction data, the controller 3 calculates the angle that the camera 1 and the spray mechanism need to be adjusted. When the target is in front, but the wind direction is deflected to the left by thirty degrees, then the controller 3 calculates that the spray mechanism needs to be adjusted to the right by a certain angle to offset the influence of the wind direction so that the liquid can be accurately sprayed onto the target. At this time, the controller 3 controls the motor 7 to start, and then the operation of the motor 7 can drive the rotating wheel 76 to drive the force-bearing rod 72 to rotate. Since the force-bearing rod 72 is installed at a position deviated from the axis of the rotating wheel 76, when the force-bearing rod 72 moves inside the slide groove, the angle is adjusted by the fixed rod 71. The limit at one end of the frame 73 causes the angle frame 73 to swing to the right on the fixed rod 2 71, thereby adjusting the angle of the angle frame 73. Due to the fixed connection between the angle frame 73 and the fixed plate 1 74, when the angle frame 73 moves, the fixed plate 1 74 can drive the nozzle 26 to move accordingly, thereby adjusting the angle of the nozzle 26, avoiding the influence of wind direction, so that the pepper spray cannot be sprayed on the violent student. Accordingly, the wind direction sensor 4 can detect the wind direction in real time, and the controller 3 can accurately calculate the influence of wind direction on the pepper spray trajectory based on this, and adjust the angle of the spray mechanism so that the pepper spray can be accurately sprayed on the student who commits violence, preventing the spray error caused by wind direction interference, ensuring the effectiveness of stopping violent behavior, and timely stopping the further escalation of violence. By accurately adjusting the spray angle, the pepper spray is prevented from being sprayed on non-target areas due to the influence of wind direction, thereby reducing the waste of pepper spray.

[0055] It should be noted that the motor 7 is a forward and reverse rotating motor 7 .

[0056] Through the cooperation of the arc shell 75 and the guide block 731, the movement trajectory of the angle frame 73 can be limited and supported, preventing the angle frame 73 from losing the supporting force of the arc shell 75 and the fixed rod 2 71, and generating friction with the outer wall of the top of the rotating wheel 76. Reducing friction can reduce the wear of the equipment, extend the service life of the equipment, and reduce the maintenance and replacement costs of the equipment. The cooperation of the arc shell 75 and the guide block 731 provides the angle frame 73 with a stable movement trajectory, allowing it to swing according to a predetermined angle and direction, which helps to ensure the accuracy of the angle adjustment of the spray mechanism, ensures that the pepper spray can be accurately sprayed onto the target, and improves the reliability and effectiveness of the campus safety intervention system.

[0057] The guide block 731 is then connected to a dust-collecting ball 732 through rotation. When the dust-collecting ball 732 rolls inside the arc shell 75, the dust inside the arc shell 75 is adhered to, thereby preventing excessive dust inside the arc shell 75 from affecting the movement of the guide block 731. Accordingly, the dust-collecting ball 732 rolls and adheres to the dust, which can reduce the interference of dust on the movement of the guide block 731 and prevent the guide block 731 from getting stuck during movement.

[0058] When the angle of the nozzle 26 is adjusted, the support seat 81 and the elliptical cylinder 82 will be driven to move on the track frame 8. The movement direction of the nozzle 26 can be limited by the limitation of the elliptical cylinder 82 and the track frame 8, thereby increasing the accuracy of the movement of the nozzle 26. The track groove formed by the outer walls of the two sides of the track frame 8 can reduce the presence of dust inside the track groove. The movement direction of the nozzle 26 is strictly limited by the limiting effect of the elliptical cylinder 82 and the track frame 8. When facing different wind directions and target positions, the nozzle 26 needs to accurately adjust the angle to ensure that the pepper spray is accurately sprayed onto the students who commit violence. This limiting design prevents the nozzle 26 from deviating in direction during the adjustment process, making the adjustment of the spray angle more precise and improving the effectiveness of the campus safety intervention system in curbing violent behavior.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A behavior recognition monitoring device for campus security, comprising a camera (1), characterized in that: The outer wall of the bottom of the camera (1) is fixedly connected to a fixing frame (2), the outer wall of the bottom of the fixing frame (2) is fixedly connected to a wind direction sensor (4), the inner wall of the fixing frame (2) is fixedly connected to a controller (3), the outer wall of the front of the fixing frame (2) is provided with a square hole, the inner wall of the square hole is fixedly connected to a mounting frame (51), the interior of the mounting frame (51) is fixedly connected to an alarm light (5), the interior of the fixing frame (2) is provided with a solution cavity (22), the outer wall of the top of the solution cavity (22) is provided with a feed hole, the interior of the feed hole is movably connected to a sealing rod (21), the interior of the fixing frame (2) is provided with a spray mechanism, and the interior of the fixing frame (2) is provided with an angle adjustment mechanism; The injection mechanism includes a water pump (23), and the outer wall of the bottom of the water pump (23) is fixedly connected to the lower part of the inner wall of the fixing frame (2); The angle adjustment mechanism includes a motor (7), and the outer wall of the bottom of the motor (7) is fixedly connected to the lower part of the inner wall of the fixing frame (2).

2. The behavior recognition monitoring device for campus security according to claim 1, characterized in that: The input end of the water pump (23) is fixedly connected to a water pumping pipe (24), the outer wall of the water pumping pipe (24) is fixedly connected to the inner wall of the solution chamber (22), and the lower part of the water pumping pipe (24) is connected to a pipe head (29), and the outer wall of the pipe head (29) is provided with a water inlet hole (62).

3. The behavior recognition monitoring device for campus security according to claim 2, characterized in that: The input end of the water pump (23) is fixedly connected to a telescopic tube (25), the outer wall of one end of the telescopic tube (25) is fixedly connected to a nozzle (26), and the outer wall of one end of the nozzle (26) is fixedly connected to a nozzle (27).

4. The behavior recognition monitoring device for campus security according to claim 3, characterized in that: A circular hole (28) is provided on the outer wall of the top of the nozzle (27), and two fixing plates (9) are fixedly connected to the two sides of the outer wall of the top of the nozzle (27), and a metal vibration diaphragm (91) is fixedly connected to the outer walls on the opposite sides of the two fixing plates (9).

5. The behavior recognition monitoring device for campus security according to claim 2, characterized in that: The outer wall of the bottom of the water pumping pipe (24) is fixedly connected to the second mounting frame (6), the bottom of the second mounting frame (6) is internally rotatably connected to a rotating plate (61), and the outer wall of the bottom of the rotating plate (61) is internally rotatably connected to the top of the pipe head (29).

6. The behavior recognition monitoring device for campus security according to claim 5, characterized in that: The outer wall of the bottom of the rotating plate (61) is fixedly connected to a fixing rod (65), the outer wall of the bottom of the fixing rod (65) is fixedly connected to a force-bearing leaf (66), the outer wall of the rotating plate (61) is fixedly connected to a stirring rod (63), and the outer wall of the stirring rod (63) is fixedly connected to a soft rod (64).

7. The behavior recognition monitoring device for campus security according to claim 1, characterized in that: The output end of the motor (7) is fixedly connected to a rotating wheel (76), a side of the outer wall of the top of the rotating wheel (76) that deviates from the axis is fixedly connected to a force-bearing rod (72), a second fixing rod (71) is fixedly connected below the inner wall of the fixing frame (2), the outer wall of the second fixing rod (71) is rotatably connected to an angle frame (73), a sliding groove is provided on the outer wall of the bottom of the angle frame (73), and the interior of the sliding groove is in movably contact with the outer wall of the force-bearing rod (72).

8. The behavior recognition monitoring device for campus security according to claim 7, characterized in that: The outer wall of the top of the angle frame (73) is fixedly connected to a fixing plate (74), and a fixing hole is opened on the outer wall of one side of the fixing plate (74), and the inner wall of the fixing hole is fixedly connected to the outer wall of the nozzle (26).

9. The behavior recognition monitoring device for campus security according to claim 7, characterized in that: One side of the inner wall of the fixing frame (2) is fixedly connected to an arc-shaped shell (75); the outer wall of one end of the angle frame (73) is fixedly connected to a guide block (731); the outer wall of the guide block (731) is slidably connected to the interior of the arc-shaped shell (75); and the interior of the upper and lower sides of the guide block (731) is rotatably connected to dust-collecting balls (732).

10. The behavior recognition monitoring device for campus security according to claim 1, characterized in that: The outer wall of the front side of the fixing frame (2) is provided with a strip groove, the interior of the strip groove is in movable contact with the outer wall of the nozzle (26), a track frame (8) is fixedly connected below the inner wall of the strip groove, the outer wall of the bottom of the nozzle (26) is fixedly connected to a support seat (81), the outer wall of the bottom of the support seat (81) is rotatably connected to an elliptical column (82), and the outer wall of the elliptical column (82) is slidably connected to the interior of the track frame (8).

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