An intelligent community security monitoring system and its equipment based on digital twin

Abstract

The present invention relates to the field of intelligent security technology, and specifically relates to an intelligent community security monitoring system and its equipment based on digital twins; it includes a mounting bracket, a mounting base, a rotating disc, a driving component, a monitoring camera and a self-cleaning mechanism. When the receiver receives the self-cleaning signal, the rotating component is started, and the rotating ring is driven to rotate on the mounting plate through the transmission gear. Under the cooperation of the bearing and the limiting rod, the mounting head is driven to move towards the direction of the monitoring camera. After the spray head and the air outlet nozzle correspond to the lens of the monitoring camera, the water pump is started, and the cleaning water is conveyed to the spray head through the first corrugated pipe. After spraying a water column on the lens through the spray head, the high-pressure blower is started, and the high-pressure air is conveyed to the air outlet nozzle through the second corrugated pipe, and the lens is dried through the air outlet nozzle, thereby completing the self-cleaning of the lens of the monitoring camera, eliminating the need for manual cleaning by staff, and thus saving labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent security, and particularly to a smart community security monitoring system and its equipment based on digital twin. Background Art

[0002] The popularization and application of Internet of Things technology have transformed the urban security from the past simple security protection system to an urban comprehensive system. However, existing smart communities cannot accurately obtain the real-time dynamics of public areas and it is difficult to grasp the situation of public areas in real time. For example, when an emergency occurs at the community access control, the security system is difficult to detect and respond in time.

[0003] To solve the above problems, the existing public patent (CN116504011B) discloses an intelligent security monitoring and warning method and system based on digital twin, including the following steps: establishing a digital twin model of a smart community and inputting the position information of each sensor in the community into the building digital twin model; establishing a database of permanent resident characteristic information and updating the permanent resident characteristic information in real time; setting a detection area at the community access control to obtain the personnel characteristic information in the detection area; obtaining the personnel position information in the detection area in real time and generating virtual characters in the digital twin model in real time; judging whether the personnel in the detection area are permanent residents and making marks, setting the opening duration of the access control when a permanent resident passes, and calculating the passing duration of a non-permanent resident through the access control; judging whether a tailing event occurs, and warning the residents when tailing occurs.

[0004] However, the structure of the monitoring equipment in the existing intelligent security monitoring and warning system based on digital twin is relatively simple, and it cannot automatically clean and remove dust from the monitoring camera. Staff need to regularly clean and remove dust from the monitoring camera on the monitoring equipment, resulting in a relatively large labor cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a smart community security monitoring system and its equipment based on digital twin, so as to solve the problem that the structure of the monitoring equipment in the existing intelligent security monitoring and warning system based on digital twin is relatively simple, it cannot automatically clean and remove dust from the monitoring camera, and staff need to regularly clean and remove dust from the monitoring camera on the monitoring equipment, resulting in a relatively large labor cost.

[0006] To achieve the above object, the present invention provides a smart community security monitoring device based on digital twin, including a mounting bracket, a mounting base, a rotating disk, a driving component, a monitoring camera and a self-cleaning mechanism. The mounting bracket is installed in the area to be detected. The end of the mounting bracket is provided with the mounting base. The end of the mounting base is rotatably connected with the rotating disk. One end of the rotating disk away from the mounting base is provided with an inclined surface, and the monitoring camera is installed on the inclined surface. The driving component is arranged inside the mounting base. A driven tooth part is arranged on the surface of the rotating disk close to the mounting base, and the output end of the driving component is in mechanical transmission with the driven tooth part;

[0007] The self-cleaning mechanism includes a mounting plate, a receiver, a water pump, a high-pressure blower, a rotating ring, a threaded rod, a rotating component, a mounting head, a spray head and an air outlet nozzle. The mounting plate is detachably connected to the mounting bracket. The receiver, the water pump and the high-pressure blower are arranged on the mounting plate. The receiver is used to receive the self-cleaning instruction. The rotating ring is also rotatably arranged on the mounting plate. The threaded rod is threadedly connected inside the rotating ring. One end of the threaded rod close to the monitoring camera is rotatably connected to the mounting head through a bearing. A limiting rod is arranged on the surface of the mounting head close to the mounting plate. The end of the limiting rod away from the mounting head penetrates through the mounting plate. The spray head and the air outlet nozzle are arranged on the mounting head, and the output ends of the spray head and the air outlet nozzle correspond to the lens of the monitoring camera. The rotating component is also arranged on the mounting plate. A transmission gear is arranged outside the rotating ring, and the output end of the rotating component is in mechanical transmission with the transmission gear. The input end of the water pump is connected to an external water source, and the output end of the water pump is connected to the spray head through a first corrugated pipe. An air inlet pipe is arranged at the input end of the high-pressure blower, and the output end of the high-pressure blower is connected to the air outlet nozzle through a second corrugated pipe.

[0008] Among them, the rotating component includes a servo motor and an output gear. The servo motor is installed on the mounting plate, and the output end of the servo motor is provided with the output gear, and the output gear meshes with the transmission gear.

[0009] Among them, two limiting rings are arranged outside the rotating ring, and the two limiting rings are respectively located on both sides of the mounting plate. A circular groove is arranged on the surface of each limiting ring close to the mounting plate, and a plurality of balls are arranged inside the circular groove.

[0010] Among them, a fixing block is arranged at one end of the mounting plate close to the mounting bracket, and the fixing block is detachably connected to the mounting bracket.

[0011] Among them, the intelligent community security monitoring device based on digital twin further includes a protective case, and the protective case is also provided on the mounting plate, and the protective case covers the outside of the rotating component and the transmission gear.

[0012] Among them, heat dissipation grooves are penetrated on the outer side wall of the protective case, and the heat dissipation grooves correspond to the servo motor.

[0013] Among them, the driving component includes a driving motor, an output shaft and a driving gear. The driving motor is installed inside the mounting seat, the output shaft is arranged at the output end of the driving motor, the driving gear is arranged at one end of the output shaft far away from the driving motor, and the driving gear meshes with the driven tooth part.

[0014] The present invention also provides an intelligent community security monitoring system based on digital twin, which includes the intelligent community security monitoring device based on digital twin as described above, and also includes a control terminal. Each intelligent community security monitoring device based on digital twin is communicatively connected to the control terminal. A digital twin model of the intelligent community is established in the control terminal, and a database of the characteristic information of permanent residents is also established in the control terminal.

[0015] An intelligent community security monitoring system and device based on digital twin of the present invention include a mounting bracket, a mounting seat, a rotating disk, a driving component, a monitoring camera and a self-cleaning mechanism. The self-cleaning mechanism includes a mounting plate, a receiver, a water pump, a high-pressure blower, a rotating ring, a threaded rod, a rotating component, a mounting head, a spray head and an air outlet nozzle. When it is detected that debris or dust adheres to the lens of the monitoring camera, resulting in blurred image information collected, after the receiver receives the self-cleaning signal, the rotating component is started, and the rotating ring is driven to rotate on the mounting plate through the transmission gear, and under the cooperation of the bearing and the limiting rod, the mounting head is driven to move towards the direction of the monitoring camera. After the spray head and the air outlet nozzle correspond to the lens of the monitoring camera, the water pump is started, and the cleaning water is conveyed to the spray head through the first corrugated pipe. After the spray head sprays a water column on the lens, the high-pressure blower is started, and the high-pressure air flow is conveyed to the air outlet nozzle through the second corrugated pipe, and the lens is dried through the air outlet nozzle, so as to complete the self-cleaning of the lens of the monitoring camera, without manual cleaning by staff, thus saving labor costs. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the intelligent community security monitoring device based on digital twin in the first embodiment of the present invention.

[0018] Figure 2 provided by the present invention Figure 1 The enlarged partial structural diagram of part A.

[0019] Figure 3 provided by the present invention Figure 1 The enlarged partial structural diagram of part B.

[0020] Figure 4 It is a schematic exploded structural diagram of the rotating disk and the mounting base in the first embodiment of the present invention.

[0021] Figure 5 It is a schematic structural diagram of the rotating ring in the first embodiment of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the connection between the protective shell and the mounting plate in the second embodiment of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the connection between the protective shell and the mounting plate in the third embodiment of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the intelligent community security monitoring system based on digital twin provided by the present invention.

[0025] 101 - Mounting bracket, 102 - Mounting base, 103 - Rotating disk, 104 - Driving component, 105 - Monitoring camera, 106 - Mounting plate, 107 - Receiver, 108 - Water pump, 109 - High-pressure blower, 110 - Rotating ring, 111 - Threaded rod, 112 - Rotating component, 113 - Mounting head, 114 - Spraying head, 115 - Air outlet nozzle, 116 - Servo motor, 117 - Output gear, 118 - Driving motor, 119 - Output shaft, 120 - Driving gear, 121 - Inclined plane, 122 - Driven tooth part, 123 - Bearing, 124 - Limiting rod, 125 - Transmission gear, 126 - First bellows, 127 - Air inlet pipe, 128 - Second bellows, 129 - Limiting ring, 130 - Annular groove, 131 - Ball, 132 - Fixed block, 201 - Protective shell, 202 - Heat dissipation groove, 301 - Outer shell, 302 - Air-cooling fan blade, 303 - Mounting block, 401 - Control terminal, 402 - Digital twin model of smart community, 403 - Database of characteristic information of permanent residents. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0027] First embodiment:

[0028] Please refer to Figures 1 to 5 , where Figure 1 is a schematic structural diagram of the smart community security monitoring device based on digital twin in the first embodiment, Figure 2 is Figure 1 a partially enlarged structural diagram of part A in Figure 3 is Figure 1 a partially enlarged structural diagram of part B in Figure 4 is a schematic disassembled structural diagram of the rotating disk and the mounting base in the first embodiment, Figure 5 is a schematic structural diagram of the rotating ring in the first embodiment.

[0029] The present invention provides a smart community security monitoring device based on digital twin, which includes a mounting bracket 101, a mounting base 102, a rotating disk 103, a driving component 104, a monitoring camera 105 and a self-cleaning mechanism. The self-cleaning mechanism includes a mounting plate 106, a receiver 107, a water pump 108, a high-pressure blower 109, a rotating ring 110, a threaded rod 111, a rotating component 112, a mounting head 113, a spray head 114 and an air outlet nozzle 115. The rotating component 112 includes a servo motor 116 and an output gear 117. The driving component 104 includes a driving motor 118, an output shaft 119 and a driving gear 120.

[0030] For this specific embodiment, the mounting bracket 101 is installed in the area to be detected. The end of the mounting bracket 101 is provided with the mounting base 102. The end of the mounting base 102 is rotatably connected to the rotating disk 103. One end of the rotating disk 103 away from the mounting base 102 is provided with an inclined surface 121. The monitoring camera 105 is installed on the inclined surface 121. The driving component 104 is arranged inside the mounting base 102. One side of the rotating disk 103 close to the mounting base 102 is provided with a driven tooth part 122. The output end of the driving component 104 is in mechanical transmission with the driven tooth part 122. The driving motor 118 is installed inside the mounting base 102. The output end of the driving motor 118 is provided with the output shaft 119. The end of the output shaft 119 away from the driving motor 118 is provided with the driving gear 120. The driving gear 120 meshes with the driven tooth part 122. After the mounting bracket 101 is installed in the area to be detected, the monitoring camera 105 is used to collect the image information of the current area in real time, and the driving component 104 is started. Due to the driving motor 118, the driving gear 120 is driven to rotate through the output shaft 119. Since the driving gear 120 meshes with the driven tooth part 122, the rotating disk 103 is driven to rotate at the end of the mounting base 102, thereby expanding the image acquisition range of the monitoring camera 105.

[0031] Among them, the mounting plate 106 is detachably connected to the mounting bracket 101. The receiver 107, the water pump 108 and the high-pressure blower 109 are arranged on the mounting plate 106. The receiver 107 is used to receive the self-cleaning instruction. A rotating ring 110 is also rotatably arranged on the mounting plate 106. A threaded rod 111 is threadedly connected inside the rotating ring 110. One end of the threaded rod 111 close to the monitoring camera 105 is rotatably connected to a mounting head 113 through a bearing 123. A limiting rod 124 is arranged on one side of the mounting head 113 close to the mounting plate 106. One end of the limiting rod 124 away from the mounting head 113 penetrates through the mounting plate 106. A spray head 114 and an air outlet nozzle 115 are arranged on the mounting head 113. The output ends of the spray head 114 and the air outlet nozzle 115 correspond to the lens of the monitoring camera 105. A rotating component 112 is also arranged on the mounting plate 106. A transmission gear 125 is arranged outside the rotating ring 110. The output end of the rotating component 112 is mechanically transmitted to the transmission gear 125. The input end of the water pump 108 is connected to an external water source. The output end of the water pump 108 is connected to the spray head 114 through a first corrugated pipe 126. An air inlet pipe 127 is arranged at the input end of the high-pressure blower 109. The output end of the high-pressure blower 109 is connected to the air outlet nozzle 115 through a second corrugated pipe 128. When it is detected that debris or dust adheres to the lens of the monitoring camera 105, resulting in blurred image information collected, after the receiver 107 receives the self-cleaning signal, the rotating component 112 is started, and the rotating ring 110 is driven to rotate on the mounting plate 106 through the transmission gear 125. Under the cooperation of the bearing 123 and the limiting rod 124, the mounting head 113 is driven to move towards the monitoring camera 105. After the spray head 114 and the air outlet nozzle 115 correspond to the lens of the monitoring camera 105, the water pump 108 is started, and cleaning water is conveyed into the spray head 114 through the first corrugated pipe 126. After the lens is sprayed with water jets through the spray head 114, the high-pressure blower 109 is started, and high-pressure air is conveyed to the air outlet nozzle 115 through the second corrugated pipe 128. The lens is dried through the air outlet nozzle 115, thereby completing the self-cleaning of the lens of the monitoring camera 105, eliminating the need for manual cleaning by staff, and thus saving labor costs.

[0032] Secondly, the servo motor 116 is installed on the mounting plate 106. An output gear 117 is provided at the output end of the servo motor 116. The output gear 117 meshes with the transmission gear 125. When the servo motor 116 is started, the output gear 117 is driven to rotate. Since the output gear 117 meshes with the transmission gear 125, the rotating ring 110 is thus driven to rotate on the mounting plate 106.

[0033] Meanwhile, two limiting rings 129 are provided on the outside of the rotating ring 110. The two limiting rings 129 are respectively located on both sides of the mounting plate 106. An annular groove 130 is provided on one side of each limiting ring 129 close to the mounting plate 106. A plurality of balls 131 are provided inside the annular groove 130. Through the arrangement of the two limiting rings 129, the structure is more stable when the rotating ring 110 rotates on the mounting plate 106. Through the arrangement of the annular groove 130 and the balls 131, the rotation is smoother when the rotating ring 110 rotates on the mounting plate 106.

[0034] In addition, a fixing block 132 is provided at one end of the mounting plate 106 close to the mounting bracket 101. The fixing block 132 is detachably connected to the mounting bracket 101. The fixing block 132 is installed on the mounting bracket 101 by using screws, thereby completing the installation of the mounting plate 106.

[0035] When using a smart community security monitoring device based on digital twin in this embodiment, after installing the mounting bracket 101 in the area to be detected, the image information of the current area is collected in real time through the monitoring camera 105, and the driving component 104 is started. Due to the driving motor 118, the driving gear 120 is driven to rotate through the output shaft 119. Since the driving gear 120 meshes with the driven tooth part 122, the rotating disk 103 is driven to rotate at the end of the mounting seat 102, thereby expanding the image acquisition range of the monitoring camera 105. And when it is detected that the image information collected is blurred due to debris or dust adhering to the lens of the monitoring camera 105, after the receiver 107 receives the self-cleaning signal, the rotating component 112 is started. The rotating ring 110 is driven to rotate on the mounting plate 106 through the transmission gear 125, and under the cooperation of the bearing 123 and the limiting rod 124, the mounting head 113 is driven to move towards the direction of the monitoring camera 105. After the spray head 114 and the air outlet nozzle 115 correspond to the lens of the monitoring camera 105, the water pump 108 is started, and the cleaning water is conveyed to the spray head 114 through the first bellows 126. After the spray head 114 sprays a water column on the lens, the high-pressure blower 109 is started, and the high-pressure air flow is conveyed to the air outlet nozzle 115 through the second bellows 28. The lens is dried through the air outlet nozzle 115, thereby completing the self-cleaning of the lens of the monitoring camera 105, without manual cleaning by staff, thus saving labor costs.

[0036] Second Embodiment:

[0037] On the basis of the first embodiment, please refer to Figure 6 , Figure 6 which is a schematic diagram of the connection structure between the protective shell and the mounting plate in the second embodiment.

[0038] The present invention provides a smart community security monitoring device based on digital twin, which further includes a protective shell 201.

[0039] For this specific embodiment, the protective shell 201 is further provided on the mounting plate 106. The protective shell 201 covers the outside of the rotating component 112 and the transmission gear 125, and the rotating component 112 and the transmission gear 125 are protected by the protective shell 201 to prevent the outside environment from affecting the meshing part of the output gear 117 and the transmission gear 125.

[0040] Among them, heat dissipation grooves 202 are penetratingly provided on the outer side wall of the protective case 201. The heat dissipation grooves 202 correspond to the servo motor 116. Through the arrangement of the heat dissipation grooves 202, the inside of the protective case 201 is kept in communication with the outside air, so that the heat generated when the servo motor 116 works is carried away by the flowing air, and the servo motor 116 is cooled.

[0041] When using a smart community security monitoring device based on digital twin in this embodiment, the protective case 201 protects the rotating component 112 and the transmission gear 125, avoiding the influence of the external environment on the meshing part of the output gear 117 and the transmission gear 125. And through the arrangement of the heat dissipation grooves 202, the inside of the protective case 201 is kept in communication with the outside air, so that the heat generated when the servo motor 116 works is carried away by the flowing air, and the servo motor 116 is cooled.

[0042] Third Embodiment:

[0043] On the basis of the first embodiment, please refer to Figure 7 , Figure 7 which is a schematic diagram of the connection structure between the protective case and the mounting plate in the third embodiment.

[0044] The smart community security monitoring device based on digital twin provided by the present invention further includes an air cooling component, and the air cooling component includes a housing 301 and an air cooling fan blade 302.

[0045] For this specific embodiment, the housing 301 is detachably connected to the protective case 201 and covers the outside of part of the heat dissipation grooves 202. The air cooling component is arranged inside the housing 301. Through the arrangement of the air cooling fan blade 302, the flow rate of the air inside the protective case 201 and the outside air is accelerated, and the heat generated when the servo motor 116 works is carried away by the rapidly flowing air, so that the cooling effect on the servo motor 116 is better.

[0046] Among them, a mounting block 303 is provided at one end of the housing 301 close to the protective case 201. The mounting block 303 is detachably connected to the outer side wall of the protective case 201. The mounting block 303 is fixed on the outer side wall of the protective case 201 by using screws, so as to complete the installation of the housing 301. The air cooling fan blade 302 is installed at one end of the housing 301 far from the protective case 201.

[0047] When using a smart community security monitoring device based on digital twin in this embodiment, the mounting block 303 is fixed on the outer wall of the protective shell 201 by screws, thus completing the installation of the outer shell 301. The air-cooling fan blade 302 is installed at one end of the outer shell 301 away from the protective shell 201. Through the setting of the air-cooling fan blade 302, the air circulation speed between the inside of the protective shell 201 and the outside is accelerated. The fast-flowing air carries the heat generated when the servo motor 116 works, making the heat dissipation effect on the servo motor 116 better.

[0048] Please refer to Figure 8 , the present invention also provides a smart community security monitoring system based on digital twin, including the smart community security monitoring device based on digital twin as described above, and further including a control terminal 401. Each of the smart community security monitoring devices based on digital twin is communicatively connected to the control terminal 401. A smart community digital twin model 402 is established in the control terminal 401, and a database 403 of permanent resident characteristic information is also established in the control terminal 401.

[0049] In this embodiment, by establishing the database 403 of permanent resident characteristic information and updating the permanent resident characteristic information in real time, a detection area is set at the community access control, and the smart community security monitoring device based on digital twin is installed at the detection area. The personnel characteristic information in the detection area is obtained through the monitoring camera 105, the personnel position information in the detection area is obtained in real time, and virtual characters are generated in real time in the smart community digital twin model 402. The situation in the community can be observed more intuitively through the smart community digital twin model 402, and when an event occurs, the relevant personnel can be confirmed through the virtual characters synchronously generated in the smart community digital twin model 402, thereby improving the security efficiency in the community. And when the control terminal 401 detects that the lens of the monitoring camera 105 is attached with debris or dust, resulting in blurred image information collected, after the receiver 107 receives the self-cleaning signal, the self-cleaning mechanism is started to clean the lens of the monitoring camera 105.

[0050] The above-disclosed is only a preferred embodiment of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A smart community security monitoring device based on digital twins, comprising a mounting bracket, a mounting seat, a rotating disk, a drive assembly and a monitoring camera, wherein the mounting bracket is installed in the area to be detected, the mounting seat is provided at the end of the mounting bracket, the end of the mounting seat is rotatably connected to the rotating disk, an end of the rotating disk away from the mounting seat is provided with an inclined surface, the monitoring camera is installed on the inclined surface, the driving assembly is provided inside the mounting seat, a driven gear portion is provided on a side of the rotating disk close to the mounting seat, the output end of the driving assembly is mechanically transmitted with the driven gear portion, and is characterized in that Also includes a self-cleaning mechanism; The self-cleaning mechanism includes a mounting plate, a receiver, a water pump, a high-pressure blower, a rotating ring, a threaded rod, a rotating assembly, a mounting head, a spray head and an air outlet. The mounting plate is detachably connected to the mounting bracket. The receiver, the water pump and the high-pressure blower are arranged on the mounting plate. The receiver is used to receive self-cleaning instructions. The mounting plate is also rotatably provided with the rotating ring. The internal thread of the rotating ring is connected to the threaded rod. The end of the threaded rod close to the surveillance camera is rotatably connected to the mounting head through a bearing. A limit rod is provided on a side of the mounting head close to the mounting plate. The limit rod is far One end of the mounting head passes through the mounting plate, and the mounting head is provided with the sprinkler head and the air outlet nozzle, and the output ends of the sprinkler head and the air outlet nozzle correspond to the lens of the surveillance camera. The mounting plate is also provided with the rotating assembly, and the outside of the rotating ring is provided with a transmission gear. The output end of the rotating assembly is mechanically transmitted with the transmission gear, the input end of the water pump is connected to the external water source, and the output end of the water pump is connected to the sprinkler head through a first bellows. The input end of the high-pressure fan is provided with an air inlet pipe, and the output end of the high-pressure fan is connected to the air outlet nozzle through a second bellows; When it is detected that debris or dust is attached to the lens of the surveillance camera, causing the collected image information to be blurred, the receiver starts the rotating assembly after receiving the self-cleaning signal, drives the rotating ring to rotate on the mounting plate through the transmission gear, and drives the mounting head to move toward the direction of the surveillance camera under the cooperation of the bearing and the limit rod, so that the spray head and the air outlet nozzle correspond to the lens of the surveillance camera, starts the water pump, and delivers cleaning water to the spray head through the first bellows. After the water column is sprayed on the lens through the spray head, starts the high-pressure blower, delivers the high-pressure airflow to the air outlet nozzle through the second bellows, and blows the lens dry through the air outlet, thereby completing the self-cleaning of the lens of the surveillance camera without the need for manual cleaning by staff, thereby saving labor costs; The digital twin-based smart community security monitoring device further includes a protective shell, which is further provided on the mounting plate, and the protective shell covers the outside of the rotating assembly and the transmission gear; It also includes an air cooling component, which includes an outer shell and air cooling fan blades. The outer shell is detachably connected to the protective shell and is covered on the outside of part of the heat dissipation slot. An installation block is provided at one end of the outer shell close to the protective shell, and the installation block is detachably connected to the outer wall of the protective shell.

2. The smart community security monitoring device based on digital twins according to claim 1 is characterized in that: The rotating assembly includes a servo motor and an output gear. The servo motor is mounted on the mounting plate. The output end of the servo motor is provided with the output gear, and the output gear is meshed with the transmission gear.

3. The smart community security monitoring device based on digital twins according to claim 1 is characterized in that: Two limiting rings are provided on the outside of the rotating ring. The two limiting rings are respectively located on the two sides of the mounting plate. A side of each limiting ring close to the mounting plate is provided with an annular groove, and a plurality of balls are provided inside the annular groove.

4. The smart community security monitoring device based on digital twins according to claim 3 is characterized in that: A fixing block is provided at one end of the mounting plate close to the mounting bracket, and the fixing block is detachably connected to the mounting bracket.

5. The smart community security monitoring device based on digital twins according to claim 1 is characterized in that: A heat dissipation groove is provided on the outer side wall of the protective shell, and the heat dissipation groove corresponds to the servo motor.

6. The smart community security monitoring device based on digital twins according to claim 1, characterized in that: The driving assembly includes a driving motor, an output shaft and a driving gear. The driving motor is installed inside the mounting seat. The output end of the driving motor is provided with the output shaft. The end of the output shaft away from the driving motor is provided with the driving gear. The driving gear is meshed with the driven gear portion.

7. A digital twin-based smart community security monitoring system, comprising the digital twin-based smart community security monitoring device according to claim 1, characterized in that: It also includes a control terminal. Each of the digital twin-based smart community security monitoring devices is communicatively connected to the control terminal. A smart community digital twin model is established in the control terminal, and a database of permanent resident characteristic information is also established in the control terminal.

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