Campus safety management equipment and management system based on Internet of Things

Abstract

The invention discloses a campus safety management device and management system based on the Internet of Things, and relates to the technical field of campus safety, the campus safety management device based on the Internet of Things comprises a base, an inductor is fixedly installed above the base, an equipment frame is fixedly installed above the base, and the equipment frame is fixedly installed above the base. The equipment comprises an equipment frame, a card reader is arranged on the surface of the equipment frame, a rotating column is rotatably mounted in the equipment frame, a blocking door is fixedly mounted on the surface of the rotating column, and the equipment further comprises a face recognition device which comprises a mounting plate, an electric push rod, a servo motor, a rotating table, a supporting rod, a rotating plate, a face recognizer, a transverse plate and a bearing rod. According to the campus safety management equipment based on the Internet of Things, the face recognizer vertically swings and horizontally swings at the same time, the recognition precision of passing students is improved, social personnel are prevented from entering the campus along with the students, and the potential safety hazards of the school are reduced.

Description

Technical Field

[0001] The present invention relates to the field of campus safety technology, and in particular to a campus safety management device and management system based on the Internet of Things. Background Art

[0002] Campus security management equipment based on the Internet of Things covers a variety of technologies and applications, aiming to improve campus security, management efficiency and emergency response capabilities.

[0003] The patent with patent announcement number CN212433842U involves a security management system based on a smart campus community, including a terminal server, an MCU module, an access control device, a monitoring module, a face recognition machine, an identity authentication module and a storage module; the MCU module and the face recognition machine are arranged on the access control device, the face recognition machine is connected to the MCU module, and the MCU module is communicated with the terminal server; the identity authentication module includes a client, an RFID electronic tag and an RFID reader, the client is communicated with the terminal server, and the RFID reader is arranged on the access control; the smart campus Internet of Things technology is combined with school safety, the campus security management is improved, and the campus safety of students is guaranteed.

[0004] In the above patent, the identity authentication module includes a client, an RFID electronic tag and an RFID reader. The client is connected to the terminal server in communication, thereby realizing the combination of smart campus Internet of Things technology and school security, improving campus security management, and ensuring students' campus safety. However, in the process of verifying people entering and leaving, due to the different heights of different people, some people need to be adjusted according to the recognition module, which affects the recognition effect and increases congestion. For this reason, a campus security management device based on the Internet of Things with a better face recognition device is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a campus security management device and management system based on the Internet of Things, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a campus security management device based on the Internet of Things, including a base, a sensor is fixedly installed on the top of the base, a device frame is fixedly installed on the top of the base, a card reader is arranged on the surface of the device frame, a rotating column is rotatably installed inside the device frame, a baffle is fixedly installed on the surface of the rotating column, and also includes: a face recognition device, the face recognition device includes a mounting plate, an electric push rod, a servo motor, a rotating table, a support rod, a rotating plate, a face recognizer, a cross plate and a receiving rod, the output end of the electric push rod moves upward to drive the cross plate to move upward, and the cross plate moves upward to drive the receiving rod to move upward, the mounting plate is fixedly installed inside the device frame, the electric push rod is fixedly installed above the mounting plate, the servo motor is fixedly installed above the mounting plate, the rotating table rotates through the inner and outer walls of the device frame, and the support rod is fixedly installed The rotatable plate is rotatably mounted on an end of the support rod away from the rotatable plate, the face recognizer is fixedly mounted on the surface of the rotating plate, the cross plate is slidably mounted inside the support rod, the receiving rod is fixedly passed through the cross plate, a slide groove 1 is provided on the surface of the rotating plate, and two ends of the receiving rod away from the cross plate are slidably connected with the slide groove 1; the face recognizer swings to increase the recognition range, improve the recognition accuracy of students coming and going, and avoid congestion caused by inaccurate recognition due to height differences. The limiting device comprises a card plate, a movable plate and a fixed plate, the card plate is fixedly mounted below the cross plate, the movable plate is slidably mounted above the mounting plate, and the fixed plate is fixedly mounted above the mounting plate; the protective device comprises a protective rod and a protective plate, the surface of the mounting plate is provided with a slide groove 2, the protective rod is slidably mounted inside the slide groove 2, and the protective plate is slidably mounted below the mounting plate.

[0007] According to the above technical solution, the output end of the electric push rod slides through the upper and lower walls of the rotating table, the output end of the electric push rod is fixedly connected to the cross plate, a spiral groove is provided on the surface of the output end of the electric push rod, and the output end of the electric push rod continues to move upward through the spiral groove to drive the rotating table to rotate. The rotation of the rotating table drives the face recognizer to swing horizontally under the action of the support rod and the rotating plate.

[0008] According to the above technical scheme, the limiting device also includes a receiving tube, an L-shaped rod, a baffle, a U-shaped rod and a block. The L-shaped rod rotates to contact and squeeze the U-shaped rod to move in a direction away from the rotating column. The movement of the U-shaped rod drives the movable plate to move in a direction away from the rotating column. The receiving tube is rotatably installed on the top of the inner wall of the equipment frame, the L-shaped rod is fixedly installed on the output end of the servo motor, the baffle is fixedly installed on the inner wall of the receiving tube, the U-shaped rod is slidably installed on the surface of the mounting plate, and the block is fixedly installed on the side of the movable plate away from the fixed plate. The rotating column is limited by the block to prevent social personnel from directly pushing the baffle door to enter the campus, thereby increasing safety hazards in the school.

[0009] According to the above technical solution, a limiting groove is provided on the surface of the rotating column, the card block contacts the limiting groove, a telescopic elastic rod is fixedly installed on the side of the fixed plate close to the movable plate, the free end of the telescopic elastic rod is fixedly connected to the movable plate, a card slot is provided above the device frame, the card plate contacts the card slot, the card plate moves upward to disengage from the card slot on the surface of the device frame and releases the limit, thereby avoiding the rotating table from rotating due to accidental touch and thus affecting the recognition effect on students.

[0010] According to the above technical solution, the receiving tube and the rotating column are connected via a transmission belt, and one end of the U-shaped rod away from the L-shaped rod contacts the moving plate. The L-shaped rod rotates to contact and squeeze the U-shaped rod to move in a direction away from the rotating column. The movement of the U-shaped rod drives the moving plate to move in a direction away from the rotating column. The movement of the moving plate drives the clamping block to move. The clamping block moves out of the limiting groove on the surface of the rotating column and releases the limit on it.

[0011] According to the above technical scheme, the protective device also includes a lifting block, a fixed bar, a limit rod and a clamping strip. During the resetting process of the movable plate, the protective bar is moved in the direction close to the rotating column, and the movement of the protective bar drives the lifting block to move. A slide groove three is opened on the surface of the protective bar, and the lifting block is slidably installed in the inside of the slide groove three. The fixed bar is fixedly installed above the mounting plate, the limit rod is slidably installed below the mounting plate, and the clamping strip is fixedly installed below the protective plate. The protective bar is fixedly penetrated through the upper and lower walls of the protective plate, and the protective bar is fixedly connected to the movable plate. The limit rod is moved to limit the clamping strip, thereby releasing the limit on the rotating column.

[0012] According to the above technical solution, a telescopic elastic rod 2 is arranged inside the slide groove 3, and the free end of the telescopic elastic rod 2 is fixedly connected to the lifting block. The lower part of the lifting block is set as an arc surface 1, and the upper part of the fixed bar is set as an arc surface 2. The lifting block moves upward to squeeze the telescopic elastic rod 2 and under its action, it is repeatedly squeezed with the fixed bar, thereby achieving the limitation of the resetting speed of the moving plate.

[0013] A campus safety management system based on the Internet of Things, comprising: A sensing module, used for sensing the entry and exit of personnel, wherein the sensing module is located inside the control sensor; A control module 1, used to control the sensor to recognize the face and control the start and stop of the electric push rod, wherein the control module 1 is located inside the control sensor and is electrically connected to the sensing module; A recognition module, used for recognizing a face, wherein the recognition module is arranged inside the face recognizer; The control module 2 is used to control the start and stop of the servo motor, and the control module 2 is electrically connected to the identification module.

[0014] The present invention provides a campus security management device and management system based on the Internet of Things. It has the following beneficial effects: (1) The campus security management equipment verifies the students through sensors and face recognition devices, which can prevent some students from being blocked from entering and exiting due to forgetting to bring their student cards. It can also identify members of the public to prevent irrelevant personnel from entering the campus and increase safety hazards. The electric push rod drives the rotating plate and face recognition device to swing up and down, increasing the recognition range and improving the recognition accuracy of students passing by, avoiding inaccurate recognition due to height differences and thus causing congestion. At the same time, the output end of the electric push rod drives the rotating table to rotate under the action of the spiral groove, thereby driving the face recognition device to rotate in the horizontal direction, further increasing the recognition range, preventing members of the public from following students into the campus, and reducing safety hazards in the school.

[0015] (2) In the campus security management equipment, the horizontal plate moves upward to drive the card plate to move upward to disengage from the card slot on the surface of the equipment frame and release the limit, so as to avoid the rotating table from rotating due to accidental touch, thereby affecting the recognition effect of students. At the same time, under the action of the receiving tube and the L-shaped rod, the movable plate and the card block are driven to move, first releasing the limit on the rotating column and then releasing it, so as to avoid social personnel directly pushing the barrier door to enter the campus, thereby increasing the safety hazard in the school. At the same time, under the action of the telescopic spring rod, the self-locking of the rotating column is realized again, thereby improving the stability of the equipment during operation and reducing the subsequent maintenance cost.

[0016] (3) In the campus safety management equipment, the movement of the movable plate drives the movement of the protective plate, and the reset speed of the movable plate is limited under the action of the lifting block and the fixed bar, so as to avoid the reset speed being too fast, causing the card block to directly contact the rotating column and cause friction, thereby increasing the wear of the equipment and reducing the service life of the equipment. At the same time, when the equipment is powered off, the card bar is limited by the limit rod, thereby releasing the limit on the rotating column. At this time, you can directly enter the campus by pushing the blocking door, which is convenient for release in the event of a power outage, avoiding the inconvenience caused by the direct suspension of the equipment, reducing the subsequent maintenance cost and increasing the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the equipment frame and the rotating table of the present invention; Figure 3 This is a schematic diagram of the face recognition device and the support rod position structure of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle; Figure 5 This is a schematic diagram of the position structure of the rotating column and the U-shaped rod of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram of part B in the middle; Figure 7 This is a schematic diagram of the position structure of the mounting plate and the protective plate of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of part C in the middle.

[0018] In the figure: 1. base; 2. sensor; 3. equipment frame; 4. card reader; 5. rotating column; 6. door stop; 7. mounting plate; 8. electric push rod; 9. servo motor; 10. rotating table; 11. support rod; 12. rotating plate; 13. face recognition device; 14. horizontal plate; 15. receiving rod; 171. card plate; 172. moving plate; 173. fixed plate; 174. receiving tube; 175. L-shaped rod; 176. baffle; 177. U-shaped rod; 178. card block; 179. telescopic spring rod one; 181. protective rod; 182. protective plate; 183. lifting block; 184. fixing bar; 185. limit rod; 186. card bar; 187. telescopic spring rod two. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0020] See also Figure 1-Figure 4, one embodiment of the present invention is: a campus security management device based on the Internet of Things, including a base 1, a sensor 2 is fixedly installed on the top of the base 1, a device frame 3 is fixedly installed on the top of the base 1, a card reader 4 is arranged on the surface of the device frame 3, a rotating column 5 is rotatably installed inside the device frame 3, and a baffle 6 is fixedly installed on the surface of the rotating column 5, and also includes: a face recognition device, the face recognition device includes a mounting plate 7, an electric push rod 8, a servo motor 9, a rotating table 10, a support rod 11, a rotating plate 12, a face recognizer 13, a cross plate 14 and a receiving rod 15, the mounting plate 7 is fixedly installed inside the device frame 3, the electric push rod 8 is fixedly installed above the mounting plate 7, the servo motor 9 is fixedly installed above the mounting plate 7, the rotating table 10 rotates through the inner and outer walls of the device frame 3, the support rod 11 is fixedly installed above the rotating table 10, and the rotating plate 12 is rotatably installed at the end of the support rod 11 away from the rotating table 10 , the face recognition device 13 is fixedly mounted on the surface of the rotating plate 12, the horizontal plate 14 is slidably mounted inside the support rod 11, the receiving rod 15 is fixedly passed through the horizontal plate 14, and a slide groove 1 is provided on the surface of the rotating plate 12, and the two ends of the receiving rod 15 away from the horizontal plate 14 are slidably connected with the slide groove 1; the face recognition device 13 swings to increase the recognition range, improve the recognition accuracy of students coming and going, and avoid inaccurate recognition due to height differences and thus congestion, the limiting device, the limiting device includes a card plate 171, a movable plate 172 and a fixed plate 173, the card plate 171 is fixedly mounted below the horizontal plate 14, the movable plate 172 is slidably mounted above the mounting plate 7, and the fixed plate 173 is fixedly mounted above the mounting plate 7; the protective device, the protective device includes a protective rod 181 and a protective plate 182, a slide groove 2 is provided on the surface of the mounting plate 7, the protective rod 181 is slidably mounted inside the slide groove 2, and the protective plate 182 is slidably mounted below the mounting plate 7.

[0021] The output end of the electric push rod 8 slides through the upper and lower walls of the rotating table 10. The output end of the electric push rod 8 is fixedly connected to the cross plate 14. A spiral groove is provided on the surface of the output end of the electric push rod 8. The output end of the electric push rod 8 continues to move upward through the spiral groove to drive the rotating table 10 to rotate. The rotation of the rotating table 10 drives the face recognizer 13 to swing horizontally under the action of the support rod 11 and the rotating plate 12. The horizontal swing of the face recognizer 13 further improves the recognition range, avoids social personnel following students into the campus, and reduces the safety risks of the school.

[0022] The sensor 2 is internally provided with a sensing module and a control module 1, and the control module 1 is electrically connected to the electric push rod 8. When the sensor 2 detects that a student is standing on its surface through the sensing module, the electric push rod 8 is started under the action of the control module 1. The face recognizer 13 is provided with a recognition module and a control module 2, and the control module 2 is electrically connected to the servo motor 9. When the recognition is completed, the face recognizer 13 starts the servo motor 9 through the control module 2.

[0023] When the present embodiment is working, when the sensor 2 detects that a student is standing on its surface through the sensing module, the electric push rod 8 is started under the action of the control module 1, and the output end of the electric push rod 8 moves upward to drive the horizontal plate 14 to move upward, and the horizontal plate 14 moves upward to drive the receiving rod 15 to move upward, and the receiving rod 15 moves upward to drive the rotating plate 12 to rotate around the upper end of the supporting rod 11 under the action of the slide slot 1, and the rotating plate 12 rotates to drive the face recognition device 13 to swing in the vertical direction, and the swing of the face recognition device 13 increases the recognition range, improves the recognition accuracy of the students coming and going, and avoids the problem of height difference. Inaccurate recognition leads to congestion. By adding a face recognition device 13, some students can avoid being blocked from entering and exiting due to forgetting to bring their student cards, and social personnel can be identified to prevent irrelevant personnel from entering the campus and increase safety hazards. The output end of the electric push rod 8 continues to move upward and drives the rotating table 10 to rotate through the spiral groove. The rotation of the rotating table 10 drives the face recognition device 13 to swing horizontally under the action of the support rod 11 and the rotating plate 12. The horizontal swing of the face recognition device 13 further increases the recognition range, prevents social personnel from following students into the campus, and reduces the safety hazards of the school.

[0024] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, the limiting device further comprises a receiving tube 174, an L-shaped rod 175, a baffle 176, a U-shaped rod 177 and a block 178. The receiving tube 174 is rotatably mounted on the top of the inner wall of the equipment frame 3, the L-shaped rod 175 is fixedly mounted on the output end of the servo motor 9, the baffle 176 is fixedly mounted on the inner wall of the receiving tube 174, the U-shaped rod 177 is slidably mounted on the surface of the mounting plate 7, and the block 178 is fixedly mounted on the side of the moving plate 172 away from the fixed plate 173. The rotating column 5 is limited by the block 178 to prevent social personnel from directly pushing the baffle door 6 to enter the campus, thereby increasing the safety hazards in the school.

[0025] A limit groove is provided on the surface of the rotating column 5, and the block 178 contacts the limit groove. A telescopic elastic rod 179 is fixedly installed on the side of the fixed plate 173 close to the movable plate 172. The free end of the telescopic elastic rod 179 is fixedly connected to the movable plate 172. A slot is provided on the top of the equipment frame 3, and the card plate 171 contacts the slot. The card plate 171 moves upward to disengage from the slot on the surface of the equipment frame 3 and release the limit, thereby avoiding the rotating table 10 from rotating due to accidental touch, thereby affecting the recognition effect on students.

[0026] The receiving tube 174 is connected to the rotating column 5 through a transmission belt. The end of the U-shaped rod 177 away from the L-shaped rod 175 contacts the movable plate 172. The movement of the U-shaped rod 177 drives the movable plate 172 to move away from the rotating column 5. The movement of the movable plate 172 drives the block 178 to move. The block 178 moves out of the limiting groove on the surface of the rotating column 5 and releases the limit on it.

[0027] The protective device also includes a lifting block 183, a fixing bar 184, a limiting rod 185 and a clamping strip 186. A slide groove three is opened on the surface of the protective rod 181. The lifting block 183 is slidably installed inside the slide groove three. The fixing bar 184 is fixedly installed above the mounting plate 7. The limiting rod 185 is slidably installed below the mounting plate 7. The clamping strip 186 is fixedly installed below the protective plate 182. The protective rod 181 is fixedly passed through the upper and lower walls of the protective plate 182. The protective rod 181 is fixedly connected to the movable plate 172. The limiting rod 185 is moved and the clamping strip 186 is limited, thereby releasing the limit on the rotating column 5. At this time, the campus can be directly entered by pushing the blocking door 6, which is convenient for release in the event of a power outage and avoids the inconvenience caused by the direct stop of the equipment.

[0028] A telescopic elastic rod 2 187 is arranged inside the slide groove 3, and the free end of the telescopic elastic rod 2 187 is fixedly connected to the lifting block 183. The lower part of the lifting block 183 is arranged as an arc surface 1, and the upper part of the fixed bar 184 is arranged as an arc surface 2. The lifting block 183 moves upward to squeeze the telescopic elastic rod 2 187 and under its action, it causes it to repeatedly squeeze with the fixed bar 184, thereby limiting the resetting speed of the moving plate 172, and preventing the resetting speed from being too fast, which causes the block 178 to directly contact the rotating column 5 and cause friction.

[0029] When this embodiment is working: when the horizontal plate 14 moves upward, it drives the card plate 171 to move upward. The card plate 171 moves upward to disengage from the card slot on the surface of the equipment frame 3 and releases the limit, so as to avoid the rotation of the rotating table 10 due to accidental touch, thereby affecting the recognition effect on the students. When the recognition is completed, the face recognition device 13 starts the servo motor 9 through the control module 2. The output end of the servo motor 9 rotates to drive the L-shaped rod 175 to rotate. The L-shaped rod 175 rotates to contact and squeeze the U-shaped rod 177 to move away from the rotating column 5. The movement of the U-shaped rod 177 drives the moving plate 172 to move away from the rotating column 5. The movement of the moving plate 172 drives the card block 178 to move. The card block 178 moves out of the limit slot on the surface of the rotating column 5 and releases the limit on it. The rear L-shaped rod 175 continues to rotate to contact and drive the baffle plate 176 to rotate, the baffle plate 176 rotates to drive the receiving tube 174 to rotate, the receiving tube 174 rotates through the transmission belt to drive the rotating column 5 to rotate, the rotating column 5 rotates to drive the baffle door 6 to rotate and release the students, and the rotating column 5 is limited by the block 178 to prevent social personnel from directly pushing the baffle door 6 to enter the campus, thereby increasing the safety hazard in the school, and the moving plate 172 moves to squeeze the telescopic elastic rod 179 to shrink, and at the same time, when the release is completed, the moving plate 172 is reset under the action of the telescopic elastic rod 179, and drives the block 178 to move in the direction close to the rotating column 5, and re-realizes the self-locking of the rotating column 5, thereby improving the stability of the equipment during operation and reducing the subsequent maintenance cost.

[0030] During the resetting process of the movable plate 172, the movable plate 172 drives the protective rod 181 to move in the direction close to the rotating column 5, and the movement of the protective rod 181 drives the lifting block 183 to move, and the lifting block 183 moves to contact the fixed bar 184 and moves upward under the action of the fixed bar 184, and the lifting block 183 moves upward to squeeze the telescopic elastic rod 187 and repeatedly squeezes the fixed bar 184 under the action of the telescopic elastic rod 187, thereby limiting the resetting speed of the movable plate 172, avoiding that the resetting speed is too fast, causing the block 178 to directly contact the rotating column 5 and cause friction, thereby increasing the wear of the equipment and reducing the service life of the equipment. At the same time, when power failure or maintenance occurs, In special circumstances, by moving the protective rod 181 away from the rotating column 5, the movement of the protective rod 181 drives the protective plate 182 to move, and the movement of the protective plate 182 drives the card strip 186 to move, and then the limit rod 185 is moved to limit the card strip 186, thereby releasing the limit on the rotating column 5. At this time, you can directly enter the campus by pushing the blocking door 6, which is convenient for release in the event of a power outage, avoiding the inconvenience caused by the direct cessation of work of the equipment, reducing subsequent maintenance costs and increasing the applicability of the equipment. At the same time, the movement of the protective plate 182 can effectively prevent foreign matter from entering the interior of the equipment frame 3 through the second slide slot, reducing subsequent maintenance costs.

[0031] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A campus security management device based on the Internet of Things, comprising a base (1), a sensor (2) is fixedly mounted on the top of the base (1), a device frame (3) is fixedly mounted on the top of the base (1), a card reader (4) is arranged on the surface of the device frame (3), a rotating column (5) is rotatably mounted inside the device frame (3), and a blocking door (6) is fixedly mounted on the surface of the rotating column (5), characterized in that: Also includes: A face recognition device, the face recognition device comprising a mounting plate (7), an electric push rod (8), a servo motor (9), a rotating platform (10), a support rod (11), a rotating plate (12), a face recognizer (13), a cross plate (14) and a receiving rod (15), wherein the mounting plate (7) is fixedly mounted inside a device frame (3), the electric push rod (8) is fixedly mounted above the mounting plate (7), the servo motor (9) is fixedly mounted above the mounting plate (7), and the rotating platform (10) rotates through the device frame (3) Inner and outer walls, the support rod (11) is fixedly mounted above the rotating platform (10), the rotating plate (12) is rotatably mounted on one end of the support rod (11) away from the rotating platform (10), the face recognition device (13) is fixedly mounted on the surface of the rotating plate (12), the transverse plate (14) is slidably mounted inside the support rod (11), the receiving rod (15) is fixedly penetrated through the transverse plate (14), a slide groove 1 is provided on the surface of the rotating plate (12), and both ends of the receiving rod (15) away from the transverse plate (14) are slidably connected to the slide groove 1; a limiting device, the limiting device comprising a clamping plate (171), a movable plate (172) and a fixed plate (173), the clamping plate (171) being fixedly mounted below the transverse plate (14), the movable plate (172) being slidably mounted above the mounting plate (7), and the fixed plate (173) being fixedly mounted above the mounting plate (7); A protective device, comprising a protective rod (181) and a protective plate (182), wherein a second slide groove is provided on the surface of the mounting plate (7), the protective rod (181) is slidably mounted inside the second slide groove, and the protective plate (182) is slidably mounted below the mounting plate (7).

2. According to claim 1, a campus security management device based on the Internet of Things is characterized by: The output end of the electric push rod (8) slides through the upper and lower walls of the rotating platform (10), the output end of the electric push rod (8) is fixedly connected to the horizontal plate (14), and a spiral groove is provided on the surface of the output end of the electric push rod (8).

3. According to claim 2, a campus security management device based on the Internet of Things is characterized in that: The limiting device further comprises a receiving tube (174), an L-shaped rod (175), a baffle (176), a U-shaped rod (177) and a clamping block (178); the receiving tube (174) is rotatably mounted on the top of the inner wall of the device frame (3); the L-shaped rod (175) is fixedly mounted on the output end of the servo motor (9); the baffle (176) is fixedly mounted on the inner wall of the receiving tube (174); the U-shaped rod (177) is slidably mounted on the surface of the mounting plate (7); and the clamping block (178) is fixedly mounted on a side of the movable plate (172) away from the fixed plate (173).

4. The campus security management device based on the Internet of Things according to claim 3 is characterized in that: A limiting groove is provided on the surface of the rotating column (5), the clamping block (178) contacts the limiting groove, a telescopic elastic rod (179) is fixedly installed on one side of the fixed plate (173) close to the movable plate (172), the free end of the telescopic elastic rod (179) is fixedly connected to the movable plate (172), a clamping groove is provided on the top of the device frame (3), and the clamping plate (171) contacts the clamping groove.

5. The campus security management device based on the Internet of Things according to claim 4 is characterized in that: The receiving tube (174) and the rotating column (5) are connected to each other via a transmission belt, and one end of the U-shaped rod (177) away from the L-shaped rod (175) is in contact with the moving plate (172).

6. The campus security management device based on the Internet of Things according to claim 5 is characterized in that: The protective device further comprises a lifting block (183), a fixing bar (184), a limiting rod (185) and a clamping bar (186); a sliding groove three is provided on the surface of the protective rod (181); the lifting block (183) is slidably mounted inside the sliding groove three; the fixing bar (184) is fixedly mounted above the mounting plate (7); the limiting rod (185) is slidably mounted below the mounting plate (7); the clamping bar (186) is fixedly mounted below the protective plate (182); the protective rod (181) is fixedly penetrated through the upper and lower walls of the protective plate (182); and the protective rod (181) is fixedly connected to the movable plate (172).

7. The campus security management device based on the Internet of Things according to claim 6 is characterized in that: A telescopic elastic rod 2 (187) is arranged inside the slide slot 3, and a free end of the telescopic elastic rod 2 (187) is fixedly connected to the lifting block (183). The lower part of the lifting block (183) is arranged as an arc surface 1, and the upper part of the fixing bar (184) is arranged as an arc surface 2.

8. A campus security management system based on the Internet of Things, applied to the campus security management device based on the Internet of Things according to any one of claims 1 to 7, characterized in that: include: A sensing module, used for sensing the entry and exit of a person, wherein the sensing module is located inside the control sensor (2); A control module 1, used to control the sensor (2) to recognize a human face and control the start and stop of the electric push rod (8), wherein the control module 1 is located inside the control sensor (2) and is electrically connected to the sensing module; A recognition module, used for recognizing a human face, wherein the recognition module is arranged inside the face recognizer (13); The second control module is used to control the servo motor (9) to start and stop, and the second control module is electrically connected to the identification module.

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