An IoT device based on smart fire protection

Abstract

The present invention discloses an Internet of Things device based on smart fire protection, and the key points of its technical solution are: comprising a mounting platform, a mounting groove is opened on one side of the mounting platform, a PLC controller is fixedly installed inside the mounting groove, and a smoke detector is fixedly installed on the bottom surface of the mounting platform; an anti-false alarm component is arranged on the top surface of the mounting platform, and is used to prevent the smoke detector from falsely alarming during use. The mounting platform, PLC controller, AI camera, smoke detector and Internet of Things gateway are arranged to cooperate with each other. When the AI ​​camera recognizes a flame, it will transmit the recognition result to the Internet of Things gateway through the network. According to the recognition result and the preset business logic, the Internet of Things gateway generates corresponding control instructions, so as to facilitate the detection of fire. By recognizing the flame, the false alarm of the smoke detector to non-fire smoke such as cooking smoke, water vapor, etc. can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of smart fire protection, and in particular to an Internet of Things device based on smart fire protection. Background Art

[0002] The fire protection Internet of Things refers to the use of Internet of Things information sensing and communication technologies to link the equipment and facilities in the traditional fire protection system through social fire supervision and management and the fire protection information required by various elements involved in fire fighting and rescue by public security organs’ fire fighting agencies, build a highly sensitive fire protection basic environment, and realize real-time, dynamic, interactive and integrated fire protection information collection, transmission and processing. It can comprehensively promote and improve the level of social fire supervision and management implemented by the government and relevant agencies, and significantly enhance the command, dispatch, decision-making and disposal capabilities of public security organs’ fire fighting and rescue.

[0003] In the prior art, as a kind of advanced fire warning equipment, smart smoke detectors play an important role in improving fire safety. However, they are highly sensitive and may produce false alarms for non-fire smoke, such as cooking smoke, water vapor and other smoke. The false alarms of smoke detectors will not only cause unnecessary panic to users, but may also lead to a waste of fire-fighting resources. Moreover, when a flame just starts, the smoke it produces is small and will diffuse as it floats in the air. Therefore, when the smoke reaches the position of the smoke detector, it will become thin, which will cause the smoke detector to detect the flame smoke with deviations, so that the alarm cannot be issued in time and the flame will become larger. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an Internet of Things device based on smart fire protection to solve the problems raised in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An Internet of Things device based on smart fire protection comprises a mounting platform, a mounting groove is provided on one side of the mounting platform, a PLC controller is fixedly installed inside the mounting groove, a smoke detector is fixedly installed on the bottom surface of the mounting platform; an anti-false alarm component is arranged on the top surface of the mounting platform to prevent the smoke detector from falsely alarming during use, the anti-false alarm component comprises: two movable holes, both of which are arranged on the top surface of the mounting platform, two fixing frames are fixedly installed on the top surface of the mounting platform, a stabilizing disk is fixedly installed on the bottom surface of the fixing frame, a rotating hole is provided on the top surface of the stabilizing disk, a servo motor is fixedly installed on the top surface of the stabilizing disk, a driving shaft of the servo motor is movably sleeved with the rotating hole, a first gear is fixedly installed on the bottom surface of the driving shaft of the servo motor, an inner gear ring is provided on the bottom surface of the stabilizing disk, a plurality of supporting columns are fixedly installed on the top surface of the inner gear ring, two pulleys are fixedly sleeved on the outer circumferential wall surface of the supporting column, the outer circumference of the stabilizing disk is movably sleeved with the two pulleys, and the inner A rotating frame is provided on the bottom surface of the gear ring, and stabilizing frames are fixedly installed on both sides of the rotating frame respectively, and the stabilizing frames are fixedly installed with the bottom surface of the inner gear ring, and an adjusting frame is provided on the bottom surface of the rotating frame, and a movable platform is fixedly installed on the bottom surface of the adjusting frame, and an AI camera is fixedly installed on the bottom surface of the movable platform, and a limiting groove is provided on the top surface of the mounting platform, and an Internet of Things gateway is fixedly sleeved inside the limiting groove, and the Internet of Things gateway is electrically connected to the PLC controller, the PLC controller is electrically connected to the smoke detector, the PLC controller is electrically connected to the servo motor, the Internet of Things gateway is electrically connected to the AI ​​camera, and the PLC controller is electrically connected to the Internet of Things gateway; an angle adjustment component is provided on the top surface of the rotating frame for adjusting the angle of the AI ​​camera; a suction component is provided on the bottom surface of the mounting platform for sucking smoke so that the smoke detector can identify it; a detection component for secondary confirmation of the fire is provided on the bottom surface of the mounting platform.

[0007] By adopting the above technical solution, when the staff uses smoke detectors to detect fires through the set AI camera, since the AI ​​camera is based on the deep learning target detection algorithm, through deep learning and other machine learning algorithms, the camera can extract the characteristics of the flame from the image, such as color, shape, texture, etc. These features will be used to train classifiers to accurately identify flames in real-time video streams. Therefore, the AI ​​camera will capture images or video streams in real time. When the AI ​​camera identifies a flame, it will transmit the identification result to the IoT gateway through the network. Based on the identification result and the preset business logic, the IoT gateway generates corresponding control instructions to facilitate the detection of fires. By identifying the flame, the false alarms of smoke detectors for non-fire smoke such as cooking smoke and water vapor can be reduced. When the staff installs the installation table, the servo motor can be timed through the PLC controller. Every hour, the servo motor will be started to let its drive shaft drive the first gear to rotate, and the rotation of the first gear will engage and drive the inner gear ring to rotate. At this time, the inner gear ring will rotate and drive the rotating frame, the stabilizing frame, the adjusting frame, the movable table and the AI ​​camera to rotate, so as to facilitate the interval adjustment of the monitoring position of the AI ​​camera to prevent the fire from occurring in the monitoring blind spot of the AI ​​camera and the fire from occurring due to the AI ​​camera's failure to monitor.

[0008] Preferably, the adjustment component comprises: a fixing groove, the fixing groove is arranged on the top surface of the rotating frame, a stepper motor is fixedly sleeved inside the fixing groove, a rotating hole is arranged on one side of the rotating frame, a driving shaft of the stepper motor is movably sleeved with the rotating hole, a second gear is fixedly installed on one end of the driving shaft of the stepper motor, a stabilizing column is fixedly installed on one side of the rotating frame, a first external gear ring is movably sleeved on the outer circular wall surface of the stabilizing column, a third gear is fixedly installed on one side of the first external gear ring, the third gear is movably sleeved with the stabilizing column, and the second gear is movably sleeved with the first external gear The ring is meshed and connected, and stabilizing holes are respectively opened on both sides of the rotating frame, and the inner circular wall surfaces of the two stabilizing holes are movably sleeved with transmission columns, one end of the transmission column is fixedly installed with a fourth gear, and the fourth gear is meshed and connected with the third gear, and the other end of the transmission column is fixedly installed with a spur gear, and a circular through hole is opened on one side of the rotating frame, and a movable column is fixedly installed inside the adjusting frame, and the movable column is movably sleeved with the adjusting frame, and a plurality of gear teeth are fixedly installed on the outer circular surface of the adjusting frame, and the spur gear is meshed and connected with the gear teeth, and the stepping motor is electrically connected to the PLC controller.

[0009] By adopting the above technical solution, through the setting of the adjustment frame, the PLC controller also times the stepper motor to start it every thirty minutes, and then the rotation of the drive shaft of the stepper motor will drive the second gear to rotate, and the rotation of the second gear will engage and drive the first outer gear ring and the third gear to rotate, and then the third gear will engage and drive the fourth gear, the transmission column and the spur gear to rotate, and then through the engagement of the spur gear and the gear teeth, the rotation of the spur gear can make the adjustment frame drive the movable table and the AI ​​camera to rotate, so that the AI ​​camera can be lifted, so that the AI ​​camera can monitor a farther position.

[0010] Preferably, the air suction assembly includes: a protective shell, the protective shell is fixedly mounted on the bottom surface of the mounting platform, the protective shell is movably connected to the smoke detector, a plurality of air holes are provided on the outer circular wall surface of the protective shell, an air intake hopper is fixedly mounted on the bottom surface of the protective shell, an air intake groove is provided on the bottom surface of the air intake hopper, an exhaust hole is provided on the inner top surface of the air intake groove, an exhaust fan is fixedly connected to the inside of the exhaust hole, a dust net is fixedly connected to the inner circular wall surface of the protective shell, and the PLC controller is electrically connected to the exhaust fan.

[0011] By adopting the above technical solution, through the exhaust fan set up, when the AI ​​camera recognizes the flame, the recognition result will be transmitted to the IoT gateway through the network. According to the recognition result and the preset business logic, the IoT gateway will send the control instruction to the PLC controller. After receiving the control instruction, the PLC controller will start the exhaust fan, and then the exhaust fan will run to generate exhaust force, thereby drawing the smoke generated by the fire in the environment into the air inlet hopper and the protective shell, so that the smoke detector can recognize the fire smoke, and prevent the smoke from spreading unconcentrated when it floats into the air when the fire just starts, causing the smoke detector to fail to recognize it.

[0012] Preferably, the detection component comprises: an operating shell, which is arranged on the bottom surface of the mounting platform, the air intake hopper is fixedly mounted on the operating shell, an adjusting groove is provided on the bottom surface of the air intake hopper, and the adjusting groove corresponds to the position of the operating shell, a fixing ring is movably mounted on the inner circular wall surface of the air intake hopper, a filter cotton is fixedly mounted on the inner circular wall surface of the fixing ring, a rotating block is fixedly mounted on the outer circular wall surface of the fixing ring, an adjusting hole is provided on one side of the rotating block, a second external gear ring is fixedly mounted on one side of the rotating block, a positioning column is fixedly mounted inside the operating shell, the positioning column is movably mounted on the adjusting hole, and the positioning column is movably mounted on the second external gear ring, a mounting hole is provided on one side of the operating shell, a driving motor is fixedly mounted inside the mounting hole, a fifth gear is fixedly mounted on one end of a driving shaft of the driving motor, the fifth gear is meshingly connected to the second external gear ring, and the driving motor is electrically connected to the PLC controller.

[0013] By adopting the above technical solution, through the filter cotton set, when the AI ​​camera recognizes the flame scene, it will transmit the scene signal to the IoT gateway, and then the IoT gateway will send the control command to the PLC controller. After receiving the control command, the PLC controller will start the drive motor synchronously, and then the rotation of the drive shaft of the drive motor will drive the fifth gear to rotate, and the engagement of the fifth gear will synchronously drive the second outer gear ring, the rotating block, the fixed ring and the filter cotton to rotate, and then the fixed ring and the filter cotton can be removed from the bottom of the air intake hopper, so that the exhaust fan can suck the smoke generated by the fire into the protective shell for the smoke detector to detect the smoke. By allowing the AI ​​camera and the smoke detector to perform identification and detection at the same time, the false alarm of the fire alarm is reduced. When used under normal circumstances, the filter cotton can block the water vapor and dust in the environment to reduce its influence on the sensitivity of the smoke detector.

[0014] Preferably, a positioning groove is provided on one side of the mounting platform, a buzzer is fixedly sleeved inside the positioning groove, and the buzzer is electrically connected to the PLC controller.

[0015] By adopting the above technical solution and setting the positioning slot, since the AI ​​camera needs to wait for the generation of smoke and capture it before an alarm can be triggered, at this time the fire has already started and a big fire will occur, which is very dangerous. Therefore, the AI ​​camera can recognize the flame faster than the smoke detector. When the AI ​​camera recognizes the flame and transmits it to the IoT gateway, the IoT gateway will directly control the PLC controller to start the buzzer to make a buzzing sound, so as to alert people when the fire is just small, so as to give people time to react and respond to the fire.

[0016] Preferably, water tanks are fixedly installed on both sides of the mounting platform, a water outlet hole is provided on the bottom surface of the water tank, a water spray pipe is fixedly connected to the inner circular wall surface of the water outlet hole, a spray head is fixedly connected to the inner circular wall surface of the water spray pipe, a water injection hole is provided on one side of the water tank, a thread is provided on the inner circular wall surface of the water injection hole, a sealing plug is threadedly connected to the inner circular wall surface of the water injection hole, and a thread is provided on the outer circular wall surface of the sealing plug.

[0017] By adopting the above technical solution, through the set sprinkler head, when the AI ​​camera and smoke detector confirm a fire, the water inside the water tank can be sprayed out by using the sprinkler head, thereby facilitating the extinguishing of the newly started fire and reducing the fire smoke at the same time.

[0018] Preferably, two mounting columns are fixedly mounted on the top surface of the mounting platform, a splicing groove is opened on the top surface of the mounting column, and clamping grooves are respectively opened on both sides of the interior of the splicing groove, a fixing column is arranged on the top surface of the mounting column, and clamping columns are respectively fixedly mounted on both sides of the fixing column, the fixing column is movably connected to the splicing groove, and the clamping column is movably clamped to the clamping groove.

[0019] By adopting the above technical solution, through the setting of the installation columns, when the staff installs the installation platform, they first fix the two fixing columns on the wall or ceiling where they need to be installed, and then drive the installation columns to move by moving the installation platform, so that the fixing columns and the clamping columns are clamped into the splicing grooves and the inside of the clamping grooves, which can restrict the installation platform and facilitate the disassembly of the installation platform.

[0020] Preferably, a plurality of fastening holes are formed on the top surface of the fixing column, and a threaded column is movably sleeved on the inner circular wall surface of the fastening hole.

[0021] By adopting the above technical solution, the fixing column is installed and fixed.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] Through the coordinated use of the installation platform, PLC controller, AI camera, smoke detector and IoT gateway, when the AI ​​camera identifies the flame, it will transmit the identification result to the IoT gateway through the network. According to the identification result and the preset business logic, the IoT gateway generates corresponding control instructions, so as to facilitate the detection of fire. By identifying the flame, the false alarm of smoke detectors for non-fire smoke such as cooking smoke, water vapor, etc. can be reduced;

[0024] Through the coordination of the mounting table, PLC controller, fixing frame, stabilizing plate, servo motor, first gear, inner gear ring, supporting column, pulley, rotating frame, stabilizing frame, adjusting frame, movable table and AI camera, the servo motor will be started every hour to let its driving shaft drive the first gear to rotate, so as to adjust the monitoring position of the AI ​​camera at intervals, so as to prevent fire from occurring in the blind spot of the AI ​​camera, which may be caused by the failure of the AI ​​camera to monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the movable hole structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the installation slot structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the mounting platform structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the stabilizing disk of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the rotating frame of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the adjustment frame of the present invention;

[0032] Figure 8 It is a schematic diagram of the protective shell structure of the present invention;

[0033] Fig. 9 It is a schematic diagram of the air intake scoop structure of the present invention;

[0034] Fig.10 It is a schematic diagram of the fixing ring structure of the present invention;

[0035] Fig.11 It is a schematic diagram of the fixed column structure of the present invention;

[0036] Fig.12 It is a schematic diagram of the water tank structure of the present invention.

[0037] Figure numerals: 1, mounting table; 2, mounting slot; 3, PLC controller; 4, movable hole; 5, fixed frame; 6, stabilizing plate; 7, rotating hole; 8, servo motor; 9, first gear; 10, inner gear ring; 11, supporting column; 12, pulley; 13, rotating frame; 14, stabilizing frame; 15, adjusting frame; 16, movable table; 17, AI camera; 18, smoke detector; 19, limiting slot; 20, IoT gateway; 21, fixed slot; 22, stepping motor; 23, rotating hole; 24, second gear; 25, first outer gear ring; 26, third gear; 27, stabilizing column; 28, fourth gear; 29, stabilizing hole; 30, transmission column; 31, spur gear; 32, movable column; 3 3. Gear teeth; 34. Protective shell; 35. Air vent; 36. Air inlet hopper; 37. Air inlet slot; 38. Exhaust hole; 39. Exhaust fan; 40. Operating shell; 41. Adjustment slot; 42. Fixed ring; 43. Filter cotton; 44. Rotating block; 45. Adjustment hole; 46. Second outer gear ring; 47. Mounting hole; 48. Positioning column; 49. Driving motor; 50. Fifth gear; 51. Dustproof net; 52. Water tank; 53. Water outlet hole; 54. Water spray pipe; 55. Sprinkler head; 56. Water injection hole; 57. Sealing plug; 58. Positioning slot; 59. Buzzer; 60. Mounting column; 61. Splicing slot; 62. Snap-in slot; 63. Fixed column; 64. Fastening hole; 65. Threaded column; 66. Snap-in column. DETAILED DESCRIPTION

[0038] 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.

[0039] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7, an Internet of Things device based on smart fire protection, including a mounting platform 1, a mounting groove 2 is opened on one side of the mounting platform 1, a PLC controller 3 is fixedly installed inside the mounting groove 2, a smoke detector 18 is fixedly installed on the bottom surface of the mounting platform 1, and an anti-false alarm component is arranged on the top surface of the mounting platform 1 to prevent the smoke detector 18 from falsely alarming during use. The anti-false alarm component includes two movable holes 4, and the two movable holes 4 are both opened on the top surface of the mounting platform 1. Two fixing frames 5 are fixedly installed on the top surface of the mounting platform 1, and a stabilizing plate 6 is fixedly installed on the bottom surface of the fixing frame 5. A rotating hole 7 is opened on the top surface of the stabilizing plate 6, and a servo motor 8 is fixedly installed on the top surface of the stabilizing plate 6. The driving shaft of the servo motor 8 is movably sleeved with the rotating hole 7, and the driving shaft of the servo motor 8 is movably sleeved with the rotating hole 7. A first gear 9 is fixedly installed on the bottom surface, an inner gear ring 10 is provided on the bottom surface of the stabilizing disk 6, a plurality of support columns 11 are fixedly installed on the top surface of the inner gear ring 10, two pulleys 12 are fixedly sleeved on the outer circumference of the support column 11, the outer circumference of the stabilizing disk 6 is movably sleeved with the two pulleys 12, a rotating frame 13 is provided on the bottom surface of the inner gear ring 10, stabilizing frames 14 are fixedly installed on both sides of the rotating frame 13, the stabilizing frame 14 is fixedly installed on the bottom surface of the inner gear ring 10, an adjusting frame 15 is provided on the bottom surface of the rotating frame 13, a movable platform 16 is fixedly installed on the bottom surface of the adjusting frame 15, an AI camera 17 is fixedly installed on the bottom surface of the movable platform 16, a limiting groove 19 is provided on the top surface of the mounting platform 1, an IoT gateway is fixedly sleeved inside the limiting groove 19 20, the Internet of Things gateway 20 is electrically connected to the PLC controller 3, the PLC controller 3 is electrically connected to the smoke detector 18, the PLC controller 3 is electrically connected to the servo motor 8, the Internet of Things gateway 20 is electrically connected to the AI ​​camera 17, the PLC controller 3 is electrically connected to the Internet of Things gateway 20, the top surface of the rotating frame 13 is provided with an angle adjustment component for adjusting the angle of the AI ​​camera 17, the bottom surface of the mounting platform 1 is provided with a suction component for sucking smoke to allow the smoke detector 18 to identify, and the bottom surface of the mounting platform 1 is provided with a detection component for secondary confirmation of the fire. Through the set AI camera 17, when the staff uses the smoke detector 18 to detect the fire, due to the AI ​​camera 17 In the deep learning target detection algorithm, through deep learning and other machine learning algorithms, the camera can extract the characteristics of the flame from the image, such as color, shape, texture, etc. These characteristics will be used to train the classifier to accurately identify the flame in the real-time video stream. Therefore, the AI ​​camera 17 will capture the image or video stream in real time. When the AI ​​camera 17 recognizes the flame, it will transmit the recognition result to the IoT gateway 20 through the network. According to the recognition result and the preset business logic, the IoT gateway 20 generates corresponding control instructions, so as to facilitate the detection of the fire. By recognizing the flame, the false alarm of the smoke detector 18 to non-fire smoke such as cooking smoke, water vapor, etc. can be reduced, and then when the staff installs the installation platform 1,The servo motor 8 can be timed by the PLC controller 3. The servo motor 8 is started every hour to make its driving shaft drive the first gear 9 to rotate, and then the rotation of the first gear 9 will mesh and drive the inner gear ring 10 to rotate. At this time, the inner gear ring 10 will rotate and drive the rotating frame 13, the stabilizing frame 14, the adjusting frame 15, the movable table 16 and the AI ​​camera 17 to rotate, so as to facilitate the interval adjustment of the monitoring position of the AI ​​camera 17 to prevent the fire from occurring in the monitoring blind area of ​​the AI ​​camera 17. The fire can not be monitored by the AI ​​camera 17, and the adjustment component includes a fixing groove 21, a fixing groove 22, and a fixing groove 23. 1 is opened on the top surface of the rotating frame 13, the interior of the fixing groove 21 is fixedly sleeved with a stepper motor 22, a rotating hole 23 is opened on one side of the rotating frame 13, the driving shaft of the stepper motor 22 is movably sleeved with the rotating hole 23, a second gear 24 is fixedly installed on one end of the driving shaft of the stepper motor 22, a stabilizing column 27 is fixedly installed on one side of the rotating frame 13, a first external gear ring 25 is movably sleeved on the outer circumferential wall surface of the stabilizing column 27, a third gear 26 is fixedly installed on one side of the first external gear ring 25, the third gear 26 is movably sleeved with the stabilizing column 27, the second gear 24 is meshed and connected with the first external gear ring 25, and two sides of the rotating frame 13 are respectively opened There are stabilizing holes 29, and the inner circumferential wall surfaces of the two stabilizing holes 29 are movably sleeved with a transmission column 30, one end of the transmission column 30 is fixedly installed with a fourth gear 28, and the fourth gear 28 is meshed and connected with the third gear 26, and the other end of the transmission column 30 is fixedly installed with a spur gear 31, and a circular through hole is opened on one side of the rotating frame 13, and a movable column 32 is fixedly installed inside the adjusting frame 15, and the movable column 32 is movably sleeved with the adjusting frame 15, and a plurality of gear teeth 33 are fixedly installed on the outer circumferential surface of the adjusting frame 15, and the spur gear 31 is meshed and connected with the gear teeth 33, and the stepping motor 22 is electrically connected with the PLC controller 3, and through the setting of the adjusting frame 15, the PLC controller The controller 3 also times the stepper motor 22 to start it every thirty minutes, and then the rotation of the drive shaft of the stepper motor 22 drives the second gear 24 to rotate, and the rotation of the second gear 24 will mesh and drive the first outer gear ring 25 and the third gear 26 to rotate, and then the third gear 26 will mesh and drive the fourth gear 28, the transmission column 30 and the spur gear 31 to rotate, and then through the meshing of the spur gear 31 and the gear teeth 33, the rotation of the spur gear 31 can make the adjustment frame 15 drive the movable platform 16 and the AI ​​camera 17 to rotate, so that the AI ​​camera 17 is lifted, so that the AI ​​camera 17 can monitor a farther position.

[0040] Embodiment 2: Based on the above embodiment 1, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 and Fig.10The air suction component includes a protective shell 34, which is fixedly mounted on the bottom surface of the mounting platform 1. The protective shell 34 is movably connected to the smoke detector 18. A plurality of air holes 35 are provided on the outer circumferential wall of the protective shell 34. An air inlet hopper 36 is fixedly mounted on the bottom surface of the protective shell 34. An air inlet groove 37 is provided on the bottom surface of the air inlet hopper 36. An air extraction hole 38 is provided on the inner top surface of the air inlet groove 37. An exhaust fan 39 is fixedly connected to the inside of the exhaust hole 38. A dustproof net 51 is fixedly connected to the inner circumferential wall of the protective shell 34. The PLC controller 3 is electrically connected to the exhaust fan 39. When the AI ​​camera 17 recognizes a flame, the recognition result will be transmitted to the IoT gateway 20 through the network. According to the recognition result and the preset business logic, the IoT gateway 20 will control The command is sent to the PLC controller 3. After receiving the control command, the PLC controller 3 will start the exhaust fan 39. Then the exhaust fan 39 will run to generate exhaust force, so that the smoke generated by the fire in the environment will be sucked into the air intake hopper 36 and the protective shell 34, so that the smoke detector 18 can identify the fire smoke, and prevent the smoke from spreading unconcentrated when the fire just starts and drifting into the air, so that the smoke detector 18 cannot identify it. The detection component includes an operating shell 40, and the operating shell 40 is arranged on the bottom surface of the mounting platform 1. The air intake hopper 36 is fixedly installed with the operating shell 40. The bottom surface of the air intake hopper 36 is provided with an adjustment groove 41, and the adjustment groove 41 corresponds to the position of the operating shell 40. The inner circular wall surface of the air intake hopper 36 is movably sleeved with a fixing ring 42, and the inner circular wall surface of the fixing ring 42 is fixedly sleeved with a filter cotton 43 A rotating block 44 is fixedly installed on the outer circumferential wall of the fixed ring 42, an adjusting hole 45 is provided on one side of the rotating block 44, a second outer gear ring 46 is fixedly installed on one side of the rotating block 44, a positioning column 48 is fixedly installed inside the operating shell 40, the positioning column 48 is movably sleeved with the adjusting hole 45, the positioning column 48 is movably sleeved with the second outer gear ring 46, a mounting hole 47 is provided on one side of the operating shell 40, a driving motor 49 is fixedly sleeved inside the mounting hole 47, a fifth gear 50 is fixedly installed on one end of the driving shaft of the driving motor 49, the fifth gear 50 is meshed and connected with the second outer gear ring 46, the driving motor 49 is electrically connected to the PLC controller 3, and through the filter cotton 43, when the AI ​​camera 17 recognizes the flame scene, it will transmit the scene signal To the IoT gateway 20, the IoT gateway 20 then sends the control command to the PLC controller 3. After receiving the control command, the PLC controller 3 will synchronously start the drive motor 49, and then the rotation of the drive shaft of the drive motor 49 will drive the fifth gear 50 to rotate, and the meshing of the fifth gear 50 will synchronously drive the second outer gear ring 46, the rotating block 44, the fixed ring 42 and the filter cotton 43 to rotate, and then the fixed ring 42 and the filter cotton 43 can be removed from the bottom of the air intake hopper 36, so that the exhaust fan 39 can suck the smoke generated by the fire into the protective shell 34 to allow the smoke detector 18 to detect the smoke. By allowing the AI ​​camera 17 and the smoke detector 18 to perform identification and detection at the same time, the false alarm of the fire alarm is reduced. When used under normal circumstances,The filter cotton 43 can block the water vapor and dust in the environment, reducing their influence on the sensitivity of the smoke detector 18.

[0041] Embodiment 3: Based on the above embodiment 1 or 2, refer to Figure 1 , Figure 3 , Fig.11 and Fig.12 A positioning groove 58 is provided on one side of the mounting platform 1, and a buzzer 59 is fixedly sleeved inside the positioning groove 58. The buzzer 59 is electrically connected to the PLC controller 3. Through the positioning groove 58, since the AI ​​camera 17 needs to wait for the generation of smoke and be captured by the AI ​​camera 17 before an alarm can be triggered, at this time, a fire has already started and a large fire will occur, which is very dangerous. Therefore, the AI ​​camera 17 recognizes the flame faster than the smoke detector 18. When the AI ​​camera 17 recognizes the flame and transmits it to the IoT gateway 20, the IoT gateway 20 will directly control the PLC controller 3 to start the buzzer 59 to sound a buzzer, so as to give an alarm to personnel when the fire is just small, so as to give people feedback. In order to deal with the fire in time, water tanks 52 are fixedly installed on both sides of the mounting platform 1, and a water outlet hole 53 is provided on the bottom surface of the water tank 52. A water spray pipe 54 is fixedly sleeved on the inner circular wall surface of the water outlet hole 53, and a sprinkler head 55 is fixedly sleeved on the inner circular wall surface of the water spray pipe 54. A water injection hole 56 is provided on one side of the water tank 52, and a thread is provided on the inner circular wall surface of the water injection hole 56. A sealing plug 57 is threadedly connected to the inner circular wall surface of the water injection hole 56, and a thread is provided on the outer circular wall surface of the sealing plug 57. Through the provided sprinkler head 55, when the AI ​​camera 17 and the smoke detector 18 confirm a fire, the water inside the water tank 52 can be sprayed out by using the sprinkler head 55, thereby facilitating the extinguishing of the newly started fire and reducing the smoke from the fire.

[0042] Embodiment 4: Based on the above embodiment 1, 2 or 3, reference Figure 1 , Figure 3 and Fig.11 Two mounting posts 60 are fixedly installed on the top surface of the mounting platform 1, and a splicing groove 61 is opened on the top surface of the mounting post 60, and clamping grooves 62 are opened on both sides of the splicing groove 61 respectively. A fixing post 63 is set on the top surface of the mounting post 60, and clamping posts 66 are fixedly installed on both sides of the fixing post 63. The fixing post 63 is movably sleeved with the splicing groove 61, and the clamping post 66 is movably clamped with the clamping groove 62. Through the provided mounting posts 60, when the staff installs the mounting platform 1, first fix the two fixing posts 63 on the wall or ceiling to be installed, and drive the mounting post 60 to move by moving the mounting platform 1, so that the fixing post 63 and the clamping post 66 are clamped into the splicing groove 61 and the clamping groove 62, which can restrict the mounting platform 1 and facilitate the disassembly of the mounting platform 1. A plurality of fastening holes 64 are opened on the top surface of the fixing post 63, and a threaded post 65 is movably sleeved on the inner circular wall surface of the fastening hole 64.

[0043] Working principle: Please refer to Figure 1-Figure 12 As shown, through the AI ​​camera 17, when the staff uses the smoke detector 18 to detect the fire, because the AI ​​camera 17 is based on the deep learning target detection algorithm, through the deep learning and other machine learning algorithms, the camera can extract the characteristics of the flame from the image, such as color, shape, texture, etc., these characteristics will be used to train the classifier to accurately identify the flame in the real-time video stream. Therefore, the AI ​​camera 17 will capture the image or video stream in real time. When the AI ​​camera 17 recognizes the flame, the recognition result will be transmitted to the IoT gateway 20 through the network. According to the recognition result and the preset business logic, the IoT gateway 20 generates corresponding control instructions, so as to facilitate the detection of the fire. By recognizing the flame, In order to reduce the occurrence of false alarms of smoke detectors 18 for non-fire smoke, such as cooking smoke, water vapor, etc., when installing the installation table 1, the staff can use the PLC controller 3 to time the servo motor 8. Every hour, the servo motor 8 will be started to allow its drive shaft to drive the first gear 9 to rotate, and the rotation of the first gear 9 will engage and drive the inner gear ring 10 to rotate. At this time, the inner gear ring 10 will rotate and drive the rotating frame 13, the stabilizing frame 14, the adjusting frame 15, the movable table 16 and the AI ​​camera 17 to rotate, so as to facilitate the interval adjustment of the monitoring position of the AI ​​camera 17 to prevent the fire from occurring in the monitoring blind spot of the AI ​​camera 17, which is not monitored by the AI ​​camera 17 and causes the fire to occur.

[0044] Through the setting of the adjustment frame 15, the PLC controller 3 also times the stepper motor 22 to start it once every thirty minutes, and then the rotation of the driving shaft of the stepper motor 22 will drive the second gear 24 to rotate, and the rotation of the second gear 24 will engage and drive the first outer gear ring 25 and the third gear 26 to rotate, and then the third gear 26 will engage and drive the fourth gear 28, the transmission column 30 and the spur gear 31 to rotate, and then through the engagement of the spur gear 31 with the gear teeth 33, the rotation of the spur gear 31 can make the adjustment frame 15 drive the movable table 16 and the AI ​​camera 17 to rotate, so that the AI ​​camera 17 is lifted, so that the AI ​​camera 17 can monitor a farther position.

[0045] Through the exhaust fan 39, when the AI ​​camera 17 recognizes a flame, the recognition result will be transmitted to the IoT gateway 20 through the network. According to the recognition result and the preset business logic, the IoT gateway 20 will send a control instruction to the PLC controller 3. After receiving the control instruction, the PLC controller 3 will start the exhaust fan 39, and then the exhaust fan 39 will run to generate exhaust force, thereby drawing the smoke generated by the fire in the environment into the air inlet hopper 36 and the protective shell 34, so that the smoke detector 18 can recognize the fire smoke, and prevent the smoke from spreading unconcentrated when it floats into the air when the fire just starts, so that the smoke detector 18 cannot recognize it.

[0046] Through the provided filter cotton 43, when the AI ​​camera 17 recognizes the flame scene, the scene signal will be transmitted to the IoT gateway 20, and then the IoT gateway 20 will send the control instruction to the PLC controller 3. After receiving the control instruction, the PLC controller 3 will synchronously start the drive motor 49, and then the rotation of the drive shaft of the drive motor 49 will drive the fifth gear 50 to rotate, and the engagement of the fifth gear 50 will synchronously drive the second outer gear ring 46, the rotating block 44, the fixed ring 42 and the filter cotton 43 to rotate, and then the fixed ring 42 and the filter cotton 43 can be removed from the bottom of the air intake hopper 36, so that the exhaust fan 39 can suck the smoke generated by the fire into the protective shell 34 for the smoke detector 18 to detect the smoke. By allowing the AI ​​camera 17 and the smoke detector 18 to perform identification and detection at the same time, the false alarm of the fire alarm is reduced. When used under normal circumstances, the filter cotton 43 can block the water vapor and dust in the environment to reduce its influence on the sensitivity of the smoke detector 18.

[0047] Through the positioning groove 58, since the AI ​​camera 17 needs to wait for the generation of smoke and the alarm can only be triggered after being captured by the AI ​​camera 17 before recognizing the flame, at this time, the fire has already started and a big fire will occur, which is very dangerous. Therefore, the AI ​​camera 17 recognizes the flame faster than the smoke detector 18. When the AI ​​camera 17 recognizes the flame and transmits it to the Internet of Things gateway 20, the Internet of Things gateway 20 will directly control the PLC controller 3 to start the buzzer 59 to make a buzzing sound, so as to alarm and remind people when the fire is just small, so as to give people time to react and respond to the fire.

[0048] 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. An IoT device based on smart fire protection, characterized in that: include: A mounting platform (1), wherein a mounting groove (2) is provided on one side of the mounting platform (1), a PLC controller (3) is fixedly installed inside the mounting groove (2), and a smoke detector (18) is fixedly installed on the bottom surface of the mounting platform (1); An anti-false alarm component is arranged on the top surface of the mounting platform (1) and is used to prevent the smoke detector (18) from giving a false alarm during use. The anti-false alarm component comprises: two movable holes (4), both of which are opened on the top surface of the mounting platform (1); two fixing frames (5) are fixedly installed on the top surface of the mounting platform (1); a stabilizing plate (6) is fixedly installed on the bottom surface of the fixing frame (5); a rotating hole (7) is opened on the top surface of the stabilizing plate (6); A servo motor (8) is installed, the drive shaft of the servo motor (8) is movably sleeved with the rotating hole (7), a first gear (9) is fixedly installed on the bottom surface of the drive shaft of the servo motor (8), an internal gear ring (10) is arranged on the bottom surface of the stabilizing plate (6), a plurality of support columns (11) are fixedly installed on the top surface of the internal gear ring (10), two pulleys (12) are fixedly sleeved on the outer circumferential wall surface of the support column (11), and the outer circumference of the stabilizing plate (6) and the two pulleys (12) are movably sleeved. The bottom surface of the inner gear ring (10) is provided with a rotating frame (13), and stabilizing frames (14) are fixedly mounted on both sides of the rotating frame (13), and the stabilizing frames (14) are fixedly mounted on the bottom surface of the inner gear ring (10). The bottom surface of the rotating frame (13) is provided with an adjusting frame (15), and a movable platform (16) is fixedly mounted on the bottom surface of the adjusting frame (15). An AI camera (17) is fixedly mounted on the bottom surface of the movable platform (16), and a top surface of the mounting platform (1) is provided with a limited The limiting groove (19) is internally fixedly sleeved with an Internet of Things gateway (20), the Internet of Things gateway (20) is electrically connected to the PLC controller (3), the PLC controller (3) is electrically connected to the smoke detector (18), the PLC controller (3) is electrically connected to the servo motor (8), the Internet of Things gateway (20) is electrically connected to the AI ​​camera (17), and the PLC controller (3) is electrically connected to the Internet of Things gateway (20).

2. According to claim 1, the IoT device based on smart fire protection is characterized in that: The top surface of the rotating frame (13) is provided with an angle adjustment component for adjusting the angle of the AI ​​camera (17); The adjustment component comprises: a fixing groove (21), the fixing groove (21) being formed on the top surface of the rotating frame (13), a stepper motor (22) being fixedly sleeved inside the fixing groove (21), a rotating hole (23) being formed on one side of the rotating frame (13), a driving shaft of the stepper motor (22) being movably sleeved in the rotating hole (23), a second gear (24) being fixedly mounted on one end of the driving shaft of the stepper motor (22), a stabilizing column (27) being fixedly mounted on one side of the rotating frame (13), a first external gear ring (25) being movably sleeved on the outer circumferential wall surface of the stabilizing column (27), a third gear (26) being fixedly mounted on one side of the first external gear ring (25), the third gear (26) being movably sleeved on the stabilizing column (27), the second gear (24) meshing with the first external gear ring (25), The rotating frame (13) is connected with the adjusting frame (15), the two sides of the rotating frame (13) are respectively provided with stabilizing holes (29), the inner circumferential walls of the two stabilizing holes (29) are movably sleeved with transmission columns (30), one end of the transmission column (30) is fixedly mounted with a fourth gear (28), the fourth gear (28) is meshingly connected with the third gear (26), the other end of the transmission column (30) is fixedly mounted with a spur gear (31), one side of the rotating frame (13) is provided with a circular through hole, the inside of the adjusting frame (15) is fixedly mounted with a movable column (32), the movable column (32) is movably sleeved with the adjusting frame (15), the outer circumferential surface of the adjusting frame (15) is fixedly mounted with a plurality of gear teeth (33), the spur gear (31) is meshingly connected with the gear teeth (33), and the stepping motor (22) is electrically connected with the PLC controller (3).

3. The IoT device based on smart fire protection according to claim 1 is characterized in that: The bottom surface of the mounting platform (1) is provided with an air suction component for sucking smoke to allow the smoke detector (18) to identify it; The air suction component comprises: a protective shell (34), the protective shell (34) being fixedly mounted on the bottom surface of the mounting platform (1), the protective shell (34) being movably sleeved with the smoke detector (18), a plurality of air holes (35) being provided on the outer circumferential wall surface of the protective shell (34), an air intake hopper (36) being fixedly mounted on the bottom surface of the protective shell (34), an air intake groove (37) being provided on the bottom surface of the air intake hopper (36), an air extraction hole (38) being provided on the inner top surface of the air intake groove (37), an exhaust fan (39) being fixedly sleeved inside the exhaust hole (38), a dust screen (51) being fixedly sleeved on the inner circumferential wall surface of the protective shell (34), and the PLC controller (3) being electrically connected to the exhaust fan (39).

4. The IoT device based on smart fire protection according to claim 3 is characterized in that: The bottom surface of the mounting platform (1) is provided with a detection component for secondary confirmation of fire; The detection assembly comprises: an operating shell (40), the operating shell (40) being arranged on the bottom surface of the mounting platform (1), the air intake hopper (36) being fixedly mounted on the operating shell (40), the bottom surface of the air intake hopper (36) being provided with an adjustment groove (41), the adjustment groove (41) corresponding to the position of the operating shell (40), the inner circular wall surface of the air intake hopper (36) being movably sleeved with a fixing ring (42), the inner circular wall surface of the fixing ring (42) being fixedly sleeved with a filter cotton (43), the outer circular wall surface of the fixing ring (42) being fixedly mounted with a rotating block (44), one side of the rotating block (44) being provided with an adjustment hole (45), the rotating block (44) A second external gear ring (46) is fixedly mounted on one side, a positioning column (48) is fixedly mounted inside the operating shell (40), the positioning column (48) is movably sleeved with the adjustment hole (45), and the positioning column (48) is movably sleeved with the second external gear ring (46), a mounting hole (47) is opened on one side of the operating shell (40), a driving motor (49) is fixedly sleeved inside the mounting hole (47), a fifth gear (50) is fixedly mounted on one end of a driving shaft of the driving motor (49), the fifth gear (50) is meshingly connected with the second external gear ring (46), and the driving motor (49) is electrically connected to the PLC controller (3).

5. The IoT device based on smart fire protection according to claim 1 is characterized in that: A positioning groove (58) is provided on one side of the mounting platform (1), a buzzer (59) is fixedly sleeved inside the positioning groove (58), and the buzzer (59) is electrically connected to the PLC controller (3).

6. The IoT device based on smart fire protection according to claim 1 is characterized in that: Water tanks (52) are fixedly mounted on both sides of the mounting platform (1), the bottom surface of the water tank (52) is provided with a water outlet hole (53), the inner circular wall surface of the water outlet hole (53) is fixedly sleeved with a water spray pipe (54), the inner circular wall surface of the water spray pipe (54) is fixedly sleeved with a spray head (55), one side of the water tank (52) is provided with a water injection hole (56), the inner circular wall surface of the water injection hole (56) is provided with a thread, the inner circular wall surface of the water injection hole (56) is threadedly connected with a sealing plug (57), and the outer circular wall surface of the sealing plug (57) is provided with a thread.

7. The IoT device based on smart fire protection according to claim 1 is characterized in that: Two mounting columns (60) are fixedly mounted on the top surface of the mounting platform (1); a splicing groove (61) is provided on the top surface of the mounting column (60); two inner sides of the splicing groove (61) are respectively provided with snap-fitting grooves (62); a fixing column (63) is provided on the top surface of the mounting column (60); snap-fitting columns (66) are respectively fixedly mounted on two sides of the fixing column (63); the fixing column (63) is movably sleeved with the splicing groove (61); and the snap-fitting column (66) is movably snap-fitted with the snap-fitting groove (62).

8. The IoT device based on smart fire protection according to claim 7 is characterized in that: A plurality of fastening holes (64) are formed on the top surface of the fixing column (63), and a threaded column (65) is movably sleeved on the inner circular wall surface of the fastening hole (64).

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