Lightweight fire behavior capturing terminal integrated with cold-resistant structure and monitoring method

Abstract

The invention discloses a lightweight fire behavior capturing terminal integrated with a cold-resistant structure and a monitoring method, and particularly relates to the field of fire behavior monitoring, the lightweight fire behavior capturing terminal comprises an integrated platform and an infrared thermal imaging camera, and the integrated platform is electrically connected with the infrared thermal imaging camera through a cold-resistant line; a cold-resistant shell is arranged on the outer side of the integrated platform, and a camera shell is arranged on the outer side of the infrared thermal imaging camera. The cold-resistant shell and the camera shell greatly block cold air on the outer side, so that normal work of electronic components in the terminal is prevented from being directly influenced by low temperature; the heating glass is arranged on the outer side of the lens of the infrared thermal imaging camera, surface frost is melted through the temperature control function of the heating glass, meanwhile, the drying agent is arranged in the front cover and adsorbs water vapor in a cavity between the front cover and the heating glass, the possibility of fogging and water drop formation on the inner side of the heating glass is reduced fundamentally, and the service life of the infrared thermal imaging camera is prolonged. And the imaging view of the infrared thermal imaging camera is ensured to be clear. Therefore, the effect of capturing the terminal to resist cold comprehensively is achieved.

Description

Technical Field

[0001] This invention relates to the field of fire monitoring technology, specifically to a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure. Background Technology

[0002] In scenarios such as forest fire prevention, industrial security in high-altitude and cold regions, and winter warehouse monitoring in northern regions, early and accurate detection of fires is crucial to reducing disaster losses. However, low temperatures pose a severe challenge to the stable operation of fire detection equipment, becoming a core bottleneck restricting the efficiency of fire monitoring in low-temperature environments.

[0003] Current conventional fire detection terminals are mostly designed for ambient temperature environments and lack targeted cold-resistant structural optimizations. In low-temperature environments, they are prone to various functional failures: Firstly, core electronic components such as processors, AI chips, and communication modules within the terminal may experience reduced processing speed, signal attenuation, and circuit freezing / short circuits at low temperatures, leading to data processing delays or equipment shutdown. Secondly, the infrared thermal imaging camera, the core of fire detection, is highly susceptible to frost and ice formation when its lens is exposed to low temperatures due to ambient humidity and temperature differences. This obstructs the normal reception of infrared radiation, causing blurred images, a significant decrease in temperature detection accuracy, and even the inability to identify initial, weak fires. Therefore, this paper presents a lightweight fire detection terminal and monitoring method with integrated cold-resistant structures to address the problems mentioned in the background. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight fire detection terminal and monitoring method with an integrated cold-resistant structure, thereby achieving a comprehensive cold-resistant effect for the detection terminal.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A lightweight fire detection terminal and monitoring method with integrated cold-resistant structure includes an integrated platform and an infrared thermal imaging camera. The integrated platform is electrically connected to the infrared thermal imaging camera via cold-resistant circuitry. The integrated platform is provided with a cold-resistant outer shell, and the infrared thermal imaging camera is provided with a camera shell. Both the camera shell and the cold-resistant shell are made of low-temperature resistant lightweight alloy and infrared-grade PC composite material, and their interiors are provided with a nano-aerogel insulation layer that hinders heat transfer. The front of the camera shell is fixedly connected to a front cover by a locking fastener, and a heated glass is fixedly installed on the front of the front cover.

[0007] As a further embodiment of the present invention: a cleaning mechanism is provided on the front of the front cover. The cleaning mechanism includes a mounting frame fixedly connected to the front of the front cover. The mounting frame is "U" shaped, and movable grooves are respectively opened on the left and right sides inside the mounting frame. Rotatable threaded rods are rotatably connected to the upper and lower sides inside the movable grooves. A movable block is threadedly connected to the outer side of the two threaded rods. A scraper assembly is provided on the rear side of the movable block.

[0008] As a further embodiment of the present invention: the top of the mounting frame is provided with a mounting groove, and the top of the two threaded rods is fixedly connected to a rotating rod. The rotating rod is located inside the mounting groove, and the outer sides of the two rotating rods are fixedly connected to synchronous pulleys. The outer sides of the two synchronous pulleys are engaged with a transmission belt. The rear left end of the mounting groove is fixedly connected to a motor, and the output end of the motor is fixedly connected to a driving bevel gear. The front side of the driving bevel gear is vertically engaged with a driven bevel gear, and the driven bevel gear is fixedly connected to the left rotating rod.

[0009] As a further embodiment of the present invention: the scraper assembly includes a pair of left and right mirror-symmetrical guide rails fixedly connected to the rear side of the moving block, a sliding plate is slidably connected to the inner side of the two guide rails, a triangular scraper is fixedly connected to the rear side of the sliding plate, and the rear end of the triangular scraper contacts the surface of the heated glass; a path groove is opened in the interior of the two movable slots, a rolling rod is rotatably connected in the two path grooves, the inner side of the two rolling rods is rotatably connected to the sliding plate, and a support spring is also connected between the sliding plate and the moving block.

[0010] As a further embodiment of the present invention: the path groove is a parallelogram and consists of two vertical grooves, one in front and one in back, and two oblique grooves connecting the upper and lower ends of the two vertical grooves, wherein the front vertical groove extends downward.

[0011] As a further aspect of the present invention, the triangular scraper is made of low-temperature resistant silicone material.

[0012] As a further embodiment of the present invention: a guide plate is provided on the inner side of the connection between the lower inclined groove and the front vertical groove. The guide plate is rotatably connected to the inner wall of the movable groove through a rotating rod. The bottom of the guide plate is inclined to fit the boundary of the inclined groove. An elastic element is fixedly connected to the rear side of the guide plate. A fixing element is fixedly connected to the other end of the elastic element. The fixing element is fixedly connected to the inner wall of the movable groove.

[0013] As a further embodiment of the present invention: a striking mechanism is provided on the front side of the path grooves on both sides. The striking mechanism includes a rotating rod rotatably connected to the inner wall of the mounting groove. A rotatable turntable is fixedly connected to the outer side of the rotating rod. A set of striking plates arranged in a circle are hinged to the outer side of the turntable through a hinge member. An elastic element two is fixedly connected to the side of the striking plate near the turntable. The other end of the elastic element two is fixedly connected to the surface of the turntable.

[0014] As a further embodiment of the present invention: a gear is fixedly connected to the outer side of the rotating rod, and a pair of toothed plates arranged on the left and right are fixedly connected to the top of the moving block, the toothed plates being matched with the corresponding side gears.

[0015] The present invention also provides a fire monitoring method, comprising the following steps:

[0016] S1. The infrared thermal imaging camera continuously scans the monitoring area, receives the infrared radiation signals emitted by all objects in the monitoring area, and converts them into electrical signals. At the same time, the temperature sensor built into the infrared thermal imaging camera synchronously collects the ambient temperature of the monitoring area and the real-time temperature at the camera lens. The infrared radiation electrical signals and raw temperature data are transmitted to the integrated platform in real time through cold-resistant circuits.

[0017] S2. After receiving the infrared radiation electrical signal and raw temperature data, the processor of the integrated platform first preprocesses the data, removes signal noise caused by environmental interference through a noise reduction algorithm, and then converts the processed electrical signal into a thermal imaging grayscale image and the corresponding temperature value matrix. Subsequently, the processor extracts the feature information of the temperature anomaly area from the thermal imaging grayscale image, including the area, shape, temperature value, heating rate of the anomaly area, and the geographical coordinates of the area in the monitoring scene, providing data support for subsequent fire identification.

[0018] S3. The AI ​​chip of the integrated platform calls the pre-trained fire identification algorithm and compares the temperature anomaly area features extracted in the second stage with the fire sample library built into the algorithm. If the anomaly area features match the fire sample library with a degree of ≥95% and match the interference source model with a degree of <10%, it is determined to be a real fire. If the degree of matching does not reach the threshold, it is determined to be environmental interference and the early warning mechanism is not triggered, thereby reducing the false alarm rate of fire.

[0019] S4. Once the AI ​​chip determines that a real fire has occurred, the processor of the integrated platform immediately initiates the early warning process: on the one hand, it pushes information such as the specific location of the fire, abnormal temperature peaks, and real-time thermal imaging images to the fire management platform through the communication module, and at the same time sends SMS and APP reminders to the mobile terminals of management personnel; on the other hand, it triggers the local sound and light warning device on the terminal to provide on-site warnings to people around the monitoring area; in addition, the processor continuously receives real-time data from the infrared thermal imaging camera and dynamically updates information such as the fire's range and temperature changes, providing continuous dynamic data support for fire fighting.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This lightweight fire detection terminal and monitoring method, with its integrated cold-resistant structure, significantly blocks cold air from the outside through its cold-resistant outer shell and camera housing, preventing low temperatures from directly affecting the normal operation of the electronic components inside the terminal. Furthermore, by installing heated glass on the outside of the infrared thermal imaging camera lens, the temperature control function of the heated glass melts surface frost. Simultaneously, a desiccant inside the front cover absorbs moisture in the cavity between the front cover and the heated glass, fundamentally reducing the possibility of fogging and water droplet formation on the inside of the heated glass, ensuring a clear imaging field of view for the infrared thermal imaging camera. This achieves comprehensive cold-resistant performance for the detection terminal.

[0022] Furthermore, this lightweight fire detection terminal and monitoring method with an integrated cold-resistant structure uses an external power source to start a motor. The motor's output drives the active bevel gear to rotate, and the active and driven bevel gears mesh to drive the left rotating rod. Then, through the linkage of the synchronous pulley and the transmission belt, the right rotating rod rotates synchronously, causing both threaded rods to rotate synchronously. This drives the moving block and scraper assembly to move up and down along the threaded rods, allowing the scraper assembly to scrape off water droplets from the heated glass. This achieves the effect of cleaning the heated glass, preventing dust, bird droppings, and water droplets on the heated glass surface from blocking infrared radiation and affecting the normal monitoring of the infrared thermal imaging camera. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure;

[0024] Figure 2 A schematic diagram of another state of the overall structure in a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure;

[0025] Figure 3 A schematic diagram of the cleaning mechanism in a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure;

[0026] Figure 4 A cross-sectional structural diagram of the cleaning mechanism in a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure;

[0027] Figure 5 A schematic diagram of the cross-sectional structure of the scraper assembly in a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure;

[0028] Figure 6 A schematic diagram of the scraper assembly structure in a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure.

[0029] Figure 7 A lightweight fire detection terminal and monitoring method with integrated cold-resistant structure. Figure 6 Enlarged schematic diagram of the structure at point A in the middle.

[0030] Figure 8 A lightweight fire detection terminal and monitoring method with integrated cold-resistant structure. Figure 6 Enlarged schematic diagram of the structure at point B.

[0031] In the diagram: 10. Integrated platform; 11. Infrared thermal imaging camera; 12. Cold-resistant circuit; 13. Camera housing; 14. Front cover; 15. Heated glass; 20. Cleaning mechanism; 201. Mounting frame; 202. Movable slot; 203. Threaded rod; 204. Moving block; 205. Mounting slot; 206. Synchronous pulley; 207. Transmission belt; 209. Driven bevel gear; 210. Motor; 211. Driving bevel gear; 30. Scraper assembly; 301. Guide rail; 302. Sliding plate; 303. Triangular scraper; 304. Path groove; 305. Rolling rod; 306. Support spring; 307. Guide plate; 308. Elastic element one; 40. Striking mechanism; 401. Toothed plate; 402. Rotating rod; 403. Gear; 404. Turntable; 405. Striking plate; 406. Elastic element two. Detailed Implementation

[0032] like Figure 1 , Figure 2 As shown, a lightweight fire detection terminal and monitoring method with integrated cold-resistant structure includes an integrated platform 10 and an infrared thermal imaging camera 11. The integrated platform 10 is electrically connected to the infrared thermal imaging camera 11 through a cold-resistant circuit 12. The integrated platform 10 is provided with a cold-resistant shell on its outer side, and the infrared thermal imaging camera 11 is provided with a camera shell 13 on its outer side. Both the camera shell 13 and the cold-resistant shell are made of low-temperature resistant lightweight alloy and infrared-grade PC composite material, and their interiors are provided with a nano-aerogel insulation layer that hinders heat transfer. The front side of the camera shell 13 is fixedly connected to a front cover 14 by a locking fastener, and a heated glass 15 is fixedly installed on the front side of the front cover 14.

[0033] Specifically, the integrated platform 10 mainly consists of core components such as a processor, AI chip, communication module, and power supply module, which are integrated into a sealed lightweight shell and can be fixed on the bracket / tree trunk / building at the monitoring point, serving as the fixed unit of the terminal; the camera shell 13 can be fixed in a suitable position through its external mounting parts.

[0034] During fire detection, the infrared thermal imaging camera 11 identifies the temperature of the monitored area, and the real-time information is fed back to the integrated platform 10 through the cold-resistant line 12. After receiving the information, the integrated platform 10 extracts the temperature data and thermal imaging features through the processor, and then the AI ​​chip runs the fire identification algorithm to compare the extracted features with the fire sample library to quickly distinguish between real fires and interference sources such as sunlight reflection and high-temperature equipment. If a fire is determined, the processor immediately triggers the communication module to push information such as the fire location, abnormal temperature value, and on-site thermal imaging image to the fire management platform, and at the same time activates the local audible and visual early warning device to realize rapid reporting and early warning of fires.

[0035] When the fire detection terminal is used in a cold environment, the cold-resistant outer shell and camera shell 13 significantly block the cold air from the outside, preventing low temperature from directly affecting the normal operation of the electronic components inside the terminal. In addition, during use, the camera of the infrared thermal imaging camera 11 needs to be exposed to achieve fire detection and cannot be completely covered for protection. When working in a low-temperature environment, the lens surface is very prone to frost due to ambient humidity and temperature difference. This device uses a heated glass 15 on the outside of the lens of the infrared thermal imaging camera 11 to melt the surface frost by using the temperature control function of the heated glass 15. At the same time, a desiccant is placed inside the front cover 14 to absorb the moisture in the cavity between the front cover 14 and the heated glass 15, thereby reducing the possibility of fogging and water droplets forming on the inside of the heated glass 15 from the source and ensuring a clear imaging field of the infrared thermal imaging camera 11.

[0036] When the heated glass 15 is used in the aforementioned low-temperature environment, a significant temperature difference will form between the surface of the heated glass 15 and the external environment. This will cause the water vapor in the cold, humid air to melt into small water droplets upon contact with the heated glass 15 and adhere to the glass surface. If these water droplets are not cleaned in time, they will cause refraction and obstruction of the infrared radiation reception of the infrared thermal imaging camera 11, affecting the normal monitoring accuracy. Therefore, a cleaning mechanism 20 is proposed.

[0037] refer to Figures 1-8 The cleaning mechanism 20 includes a mounting frame 201 fixedly connected to the front of the front cover 14. The mounting frame 201 is "U" shaped, and movable grooves 202 are respectively opened on the left and right sides inside the mounting frame 201. Rotatable threaded rods 203 are rotatably connected to the upper and lower sides inside the movable grooves 202. The two threaded rods 203 are threadedly connected to the outer sides of the movable rods 203. A scraper assembly 30 is provided on the rear side of the movable block 204.

[0038] Specifically, the top of the mounting frame 201 is provided with a mounting groove 205, and the tops of the two threaded rods 203 are fixedly connected to rotating rods. The rotating rods are located inside the mounting groove 205, and the outer sides of the two rotating rods are fixedly connected to synchronous pulleys 206. The outer sides of the two synchronous pulleys 206 are meshed with a transmission belt 207. The rear left end of the mounting groove 205 is fixedly connected to a motor 210, and the output end of the motor 210 is fixedly connected to a driving bevel gear 211. The front side of the driving bevel gear 211 is vertically meshed with a driven bevel gear 209, and the driven bevel gear 209 is fixedly connected to the left rotating rod.

[0039] In use, the motor 210 is started by an external power supply. The output of the motor 210 drives the active bevel gear 211 to rotate. The active bevel gear 211 meshes with the driven bevel gear 209, causing the left rotating rod to rotate accordingly. Then, through the linkage of the synchronous pulley 206 and the transmission belt 207, the right rotating rod is driven to rotate synchronously, thereby causing the two threaded rods 203 to rotate synchronously. This drives the moving block 204 and the scraper assembly 30 to move up and down along the threaded rods 203, allowing the scraper assembly 30 to scrape off the water droplets on the heated glass 15. This achieves the effect of cleaning the heated glass 15, preventing dust, bird droppings, and water droplets on the surface of the heated glass 15 from blocking infrared radiation and affecting the normal monitoring of the infrared thermal imaging camera 11.

[0040] During the cleaning process of the heated glass 15 by the scraper assembly 30, the scraper assembly 30 moves from top to bottom to scrape water droplets or dust off the heated glass 15 until the dust and water droplets are removed from the surface of the heated glass 15 and moved to a position that does not obstruct the normal use of the heated glass 15. However, when the scraper assembly 30 moves from bottom to top, it carries water droplets or dust to the top of the heated glass 15. After the scraper assembly 30 is removed, the mixture of water droplets and dust will slide down the surface of the heated glass 15 again due to gravity and re-adhere to the glass imaging area, affecting the light transmittance of the heated glass 15. Therefore, the scraper assembly 30 needs to be improved and optimized.

[0041] refer to Figures 3-8 The scraper assembly 30 includes a pair of left and right mirror-symmetrical guide rails 301 fixedly connected to the rear side of the moving block 204. The inner sides of the two guide rails 301 are slidably connected to a sliding plate 302. A triangular scraper 303 is fixedly connected to the rear side of the sliding plate 302. The rear end of the triangular scraper 303 is in contact with the surface of the heated glass 15. The interior of the two movable slots 202 is respectively provided with path slots 304. Rolling rods 305 are rotatably connected in the two path slots 304. The inner sides of the two rolling rods 305 are rotatably connected to the sliding plate 302. A support spring 306 is also connected between the sliding plate 302 and the moving block 204.

[0042] Furthermore, the path groove 304 is parallelogram-shaped and consists of two vertical grooves, one in front and one in back, and two inclined grooves connecting the upper and lower ends of the two vertical grooves, wherein the front vertical groove extends downwards.

[0043] Preferably, the triangular scraper 303 is made of low-temperature resistant silicone material, which can maintain good elasticity in a low temperature environment of -40℃, and adhere tightly to the surface of the heated glass 15, effectively scraping away water droplets and dust without scratching the coating layer of the heated glass 15.

[0044] Preferably, a guide plate 307 is provided on the inner side of the connection between the lower inclined groove and the front vertical groove. The guide plate 307 is rotatably connected to the inner wall of the movable groove 202 via a rotating rod. The bottom of the guide plate 307 is inclined to match the boundary of the inclined groove. An elastic element 308 is fixedly connected to the rear side of the guide plate 307. A fixing element is fixedly connected to the other end of the elastic element 308. The fixing element is fixedly connected to the inner wall of the movable groove 202.

[0045] When the scroll bar 305 rolls along the front vertical groove, the support spring 306 is compressed, while when the scroll bar 305 rolls along the rear vertical groove, the support spring 306 does not deform. In the initial state, the scroll bar 305 is located at the bottom of the front vertical groove. At this time, the triangular scraper 303 is separated from the surface of the heated glass 15 and will not cover the imaging area of ​​the heated glass 15.

[0046] When the scraper assembly 30 is in use, the threaded rod 203 rotates, driving the moving block 204 and the scraper assembly 30 to move upwards first. During this process, the triangular scraper 303 does not contact the surface of the heated glass 15, and the rolling rod 305 rolls along the inside of the front vertical groove. The elastic force of the support spring 306 acts on the scraper assembly 30, giving the scraper assembly 30 a backward thrust. When the rolling rod 305 moves to the junction of the front vertical groove and the lower inclined groove, the elastic force of the support spring 306 acts on the surface of the guide plate 307 through the rolling rod 305. The bottom of the guide plate 307 abuts against the surface of the lower inclined groove and cannot be flipped inwards. Therefore, the rolling rod 305 continues to roll along the inside of the front vertical groove. Until the rolling rod 305 moves to the top of the front vertical groove with the moving block 204, as the moving block 204 continues to move upwards, the rolling rod 305 rolls along the inside of the upper inclined groove. During the rolling process, the rolling rod 305 moves backwards, driving the sliding plate 302 and the triangular scraper 303 to move backwards synchronously. The sliding plate 302 slides along the surface of the guide rail 301 to maintain smooth movement. At the same time, the support spring 306 gradually rebounds as the rolling rod 305 moves until the rolling rod 305 rolls to the top of the rear vertical groove, and the triangular scraper 303 makes close contact with the surface of the heated glass 15. Then the threaded rod 203 reverses, driving the moving block 204 to move downward, which in turn drives the scraper assembly 30 to move downward. The rolling rod 305 rolls along the inside of the rear vertical groove, and the triangular scraper 303 simultaneously scrapes away water droplets and dust from the surface of the heated glass 15. When the rolling rod 305 rolls to the lower inclined groove, it continues to roll along the inside of the lower inclined groove under the continued driving of the moving block 204. When the rolling rod 305 contacts the rear surface of the guide plate 307, it drives the guide plate 307 to flip forward around the rotating rod as the center. The elastic element 308 deforms, allowing the rolling rod 305 to smoothly roll through the intersection and enter the front vertical groove. The guide plate 307 then returns to its original position under the rebound of the elastic element 308. This path planning ensures that the scraper assembly 30 cleans the heated glass 15 only when moving from top to bottom, and separates from the glass surface when moving from bottom to top, thus preventing dust and water droplets from flowing back.

[0047] refer to Figures 6-8 A striking mechanism 40 is provided on the front side of the path grooves 304 on both sides. The striking mechanism 40 includes a rotating rod 402 rotatably connected to the inner wall of the mounting groove 205. A rotatable turntable 404 is fixedly connected to the outer side of the rotating rod 402. A set of striking plates 405 arranged in a circle are hinged to the outer side of the turntable 404 through a hinge. An elastic element 406 is fixedly connected to the side of the striking plate 405 near the turntable 404. The other end of the elastic element 406 is fixedly connected to the surface of the turntable 404.

[0048] Specifically, a gear 403 is fixedly connected to the outer side of the rotating rod 402, and a pair of toothed plates 401 arranged on the left and right are fixedly connected to the top of the moving block 204. The toothed plates 401 are matched with the corresponding side gears 403.

[0049] When the rolling rod 305 rolls from bottom to top along the front vertical groove, the moving block 204 drives the toothed plate 401 to move upward. After the toothed plate 401 contacts the gear 403, its upward movement force drives the gear 403 to rotate clockwise, thereby driving the turntable 404 and a set of striking plates 405 to rotate synchronously. When the striking plates 405 strike the rolling rod 305, it will cause the rolling rod 305 and the triangular scraper 303 to generate high-frequency vibration, shaking off the dust or water droplets attached to the triangular scraper 303 to the outside. After the striking plates 405 strike the surface of the rolling rod 305, they will be flipped under the rotation of the turntable 404, causing the elastic element 406 to deform to adapt to the movement trajectory, and then detach from the contact with the rolling rod 305, completing one striking cleaning action.

[0050] This invention also includes a fire monitoring method, comprising the following steps:

[0051] S1. The infrared thermal imaging camera 11 continuously scans the monitoring area, receives the infrared radiation signals emitted by all objects in the monitoring area, and converts them into electrical signals. At the same time, the temperature sensor built into the infrared thermal imaging camera 11 synchronously collects the ambient temperature of the monitoring area and the real-time temperature at the camera lens. The infrared radiation electrical signals and raw temperature data are transmitted to the integrated platform 10 in real time through the cold-resistant circuit 12.

[0052] After receiving the infrared radiation electrical signal and raw temperature data, the processor of the integrated platform 10 first preprocesses the data, removes signal noise caused by environmental interference through a noise reduction algorithm, and then converts the processed electrical signal into a thermal imaging grayscale image and a corresponding temperature value matrix. Subsequently, the processor extracts feature information of the temperature anomaly area from the thermal imaging grayscale image, including the area, shape, temperature value, heating rate of the anomaly area, and the geographical coordinates of the area in the monitoring scene, providing data support for subsequent fire identification.

[0053] The AI ​​chip of the S3 integrated platform 10 calls the pre-trained fire identification algorithm to compare the temperature anomaly area features extracted in the second stage with the algorithm's built-in fire sample library (containing feature data of different fire types such as open flame, smoldering fire, and burning fire). At the same time, it matches the feature models of common interference sources such as sunlight reflection, high-temperature industrial equipment, and welding sparks. If the anomaly area features match the fire sample library with a degree of ≥95% and match the interference source model with a degree of <10%, it is determined to be a real fire. If the degree of matching does not reach the threshold, it is determined to be environmental interference and the early warning mechanism is not triggered, thereby reducing the false alarm rate of fire.

[0054] S4. Once the AI ​​chip determines that a real fire has occurred, the processor of the integrated platform 10 immediately initiates the early warning process: on the one hand, it pushes information such as the specific location of the fire, abnormal temperature peaks, and real-time thermal imaging images to the fire management platform through the communication module, and at the same time sends SMS and APP reminders to the mobile terminals of management personnel; on the other hand, it triggers the local sound and light warning device of the terminal to provide on-site warnings to people around the monitoring area; in addition, the processor continuously receives real-time data from the infrared thermal imaging camera 11 and dynamically updates information such as the fire range and temperature changes, providing continuous dynamic data support for fire fighting.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A lightweight fire detection terminal integrated with a cold-resistant structure, characterized by, It includes an integrated platform (10) and an infrared thermal imaging camera (11). The integrated platform (10) is electrically connected to the infrared thermal imaging camera (11) through a cold-resistant line (12). A cold-resistant outer shell is provided on the outside of the integrated platform (10), and a camera outer shell (13) is provided on the outside of the infrared thermal imaging camera (11). The camera outer shell (13) and the cold-resistant outer shell are both made of a low-temperature-resistant lightweight alloy and an infrared-grade PC composite material, and a nano-aerogel thermal insulation layer that impedes heat transfer is provided inside. The front side of the camera outer shell (13) is fixedly connected to a front cover (14) through a locking fastener, and a heating glass (15) is fixedly installed on the front side of the front cover (14).

2. The fire incident capturing terminal of claim 1, wherein A cleaning mechanism (20) is provided on the front surface of the front cover (14). The cleaning mechanism (20) includes a mounting frame (201) fixedly connected to the front surface of the front cover (14). The mounting frame (201) is in an "L" shape, and movable grooves (202) are respectively formed on the left and right sides inside the mounting frame (201). A rotatable threaded rod (203) is rotatably connected to the upper and lower sides inside the movable groove (202). A moving block (204) is commonly threadedly connected to the outer sides of the two threaded rods (203), and a scraper assembly (30) is provided on the rear side of the moving block (204).

3. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 2, characterized in that, A mounting groove (205) is formed at the top of the mounting frame (201). The tops of the two threaded rods (203) are fixedly connected to a rotating rod, and the rotating rod is located inside the mounting groove (205). Synchronous belt pulleys (206) are fixedly connected to the outer sides of the two rotating rods. A transmission belt (207) is commonly engaged with the outer sides of the two synchronous belt pulleys (206). A motor (210) is fixedly connected to the left end of the rear side of the mounting groove (205). The output end of the motor (210) is fixedly connected to a driving bevel gear (211). A driven bevel gear (209) is vertically engaged with the front side of the driving bevel gear (211), and the driven bevel gear (209) is fixedly connected to the left rotating rod.

4. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 3, characterized in that, The scraper assembly (30) includes a pair of guide rails (301) that are symmetrically arranged left and right and fixedly connected to the rear side of the moving block (204). A sliding plate (302) is slidably connected to the inner sides of the two guide rails (301). A triangular scraper (303) is fixedly connected to the rear side of the sliding plate (302), and the rear end of the triangular scraper (303) contacts the surface of the heating glass (15). Path grooves (304) are respectively formed inside the two movable grooves (202). Rolling rods (305) are respectively rollingly connected to the two path grooves (304). The inner sides of the two rolling rods (305) are respectively rotatably connected to the sliding plate (302). A support spring (306) is also connected between the sliding plate (302) and the moving block (204).

5. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 4, characterized in that, The path groove (304) is in a parallelogram shape and is composed of two vertical grooves, one in front and one behind, and two inclined grooves connecting the upper and lower ends of the two vertical grooves, and a part of the front vertical groove extends downward.

6. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 5, characterized in that, The triangular scraper (303) is made of low-temperature-resistant silica gel material.

7. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 6, characterized in that, A guide plate (307) is provided on the inner side of the connection between the lower inclined groove and the front vertical groove. The guide plate (307) is rotatably connected to the inner wall of the movable groove (202) through a rotating rod. The bottom of the guide plate (307) is inclined to match the boundary of the inclined groove. An elastic element (308) is fixedly connected to the rear side of the guide plate (307). A fixing element is fixedly connected to the other end of the elastic element (308). The fixing element is fixedly connected to the inner wall of the movable groove (202).

8. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 7, characterized in that, A striking mechanism (40) is provided on the front side of the path groove (304) on both sides. The striking mechanism (40) includes a rotating rod (402) rotatably connected to the inner wall of the mounting groove (205). A rotatable turntable (404) is fixedly connected to the outer side of the rotating rod (402). A set of striking plates (405) arranged in a circle are hinged to the outer side of the turntable (404) through a hinge. An elastic element two (406) is fixedly connected to the side of the striking plate (405) near the turntable (404). The other end of the elastic element two (406) is fixedly connected to the surface of the turntable (404).

9. The lightweight fire detection terminal with integrated cold-resistant structure according to claim 8, characterized in that, A gear (403) is fixedly connected to the outside of the rotating rod (402), and a pair of toothed plates (401) arranged on the left and right are fixedly connected to the top of the moving block (204). The toothed plates (401) are matched with the corresponding side gears (403).

10. A fire monitoring method, characterized in that, Includes the following steps: S1. The infrared thermal imaging camera (11) continuously scans the monitoring area, receives the infrared radiation signals emitted by all objects in the monitoring area, and converts them into electrical signals. At the same time, the temperature sensor built into the infrared thermal imaging camera (11) synchronously collects the ambient temperature of the monitoring area and the real-time temperature at the camera lens. The infrared radiation electrical signal and the original temperature data are transmitted to the integrated platform (10) in real time through the cold-resistant circuit (12). S2. After the processor of the integrated platform (10) receives the infrared radiation electrical signal and the original temperature data, it first preprocesses the data, removes the signal noise caused by environmental interference through the noise reduction algorithm, and then converts the processed electrical signal into a thermal imaging grayscale image and the corresponding temperature value matrix. The processor then extracts feature information of the temperature anomaly area from the thermal imaging grayscale image, including the area, shape, temperature value, heating rate of the anomaly area, and the geographical coordinates of the area in the monitoring scene, to provide data support for subsequent fire identification. S3. The AI ​​chip of the integrated platform (10) calls the pre-trained fire identification algorithm and compares the temperature anomaly area features extracted in the second stage with the fire sample library built into the algorithm. If the anomaly area features match the fire sample library at a rate of ≥95% and match the interference source model at a rate of <10%, then it is determined to be a real fire. If the matching degree does not reach the threshold, it is judged as environmental interference and the early warning mechanism is not triggered, thereby reducing the false alarm rate of fire. S4. When the AI ​​chip determines that the fire is real, the processor of the integrated platform (10) immediately starts the early warning process: on the one hand, it pushes information such as the specific location of the fire, abnormal temperature peak, and real-time thermal imaging image to the fire management platform through the communication module, and sends SMS and APP reminders to the mobile terminal of the management personnel; on the other hand, it triggers the local sound and light warning device of the terminal to give on-site warnings to the people around the monitoring area; in addition, the processor continuously receives real-time data from the infrared thermal imaging camera (11) and dynamically updates information such as the fire range and temperature changes, providing continuous dynamic data support for fire fighting.

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