Multifunctional fire fighting helmet with thermal imaging and gas component analysis functions

Abstract

The invention discloses a multifunctional fire fighting helmet with thermal imaging and gas component analysis, which comprises a helmet body integrated with an AR display and a parking device, and a detection unmanned aerial vehicle capable of parking on the helmet body, and the helmet body and the detection unmanned aerial vehicle are both connected with an edge processor to realize point-to-point communication; a gas sensor array and a thermal imaging camera are further carried on the detection unmanned aerial vehicle, and the gas sensor array and the thermal imaging camera transmit detection data to the edge processor in real time for analysis, so that the detection data are converted into an AR superposition layer and finally displayed in the AR display. Therefore, firefighters are assisted to confirm gas components, temperature distribution and positions of trapped persons in a disaster site. The invention aims to provide a multifunctional fire-fighting helmet integrating thermal imaging, gas component analysis and augmented reality (AR) display technologies so as to overcome the defects of existing fire-fighting equipment in the aspects of information acquisition, instruction transmission and equipment collaboration.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire rescue equipment, and particularly to a multifunctional fire helmet with thermal imaging and gas component analysis. BACKGROUND

[0002] In recent years, major fire accidents have occurred frequently, and the situation is grim. From the professional point of view of fire rescue, the timely issuance of professional command, the accurate transmission of accident site information, and the scientific application of fire equipment are of crucial importance to the effective rescue of fire and the in-depth investigation of the accident. However, due to the existing fire mechanism and equipment conditions, it is often difficult to obtain timely and professional command support at the disaster site. In an emergency, fire personnel still rely on visual observation to judge the complex environmental conditions on site, and then develop a rescue plan based on this. This traditional method of judgment is not only inefficient, but also lacks accuracy, which brings great difficulties and challenges to the rescue work. More seriously, this situation also brings great safety risks to the firefighters on the front line, increasing the possibility of their injury or even sacrifice, seriously affecting the overall combat effectiveness and rescue effect of the fire brigade.

[0003] In view of this, Chinese patent application CN201710683838.9 discloses an AR fire emergency command deduction system platform, which comprises a plurality of unmanned aerial vehicles and an AR fire helmet carried by a rescue personnel. The plurality of unmanned aerial vehicles form a matrix to realize free networking, and send the reconnaissance data to the command center and the AR fire helmet of each rescue personnel in real time. Each AR fire helmet is used to receive reconnaissance data from the unmanned aerial vehicle and control instructions from the command center, obtain current state information of the site, and freely network and transmit data back to the command center in real time. A corresponding virtual image is generated to match the real environment of the site, and the best rescue route and the optimal rescue means are selected.

[0004] However, the above-mentioned AR fire emergency command deduction system platform has some significant shortcomings in actual application. First, the unmanned aerial vehicle needs to be independently controlled during operation, which means that it cannot seamlessly cooperate with the real-time actions of the firefighter, resulting in difficulty in achieving efficient cooperation in actual emergency scenarios. Second, the helmet display is highly dependent on external relay equipment when running, which is prone to communication interruption problems in complex and variable fire environments, seriously affecting the timeliness of the firefighter receiving critical information and executing instructions. In addition, although the patent application proposes a technical solution combining unmanned aerial vehicles with AR fire helmets, it fails to effectively solve the problems of physical integration of equipment and point-to-point communication in actual implementation, which greatly reduces the overall stability and reliability of the system, making it difficult to meet the high-intensity and high-pressure fire emergency needs. SUMMARY

[0005] The objective of this invention is to provide a multifunctional fire helmet integrating thermal imaging, gas composition analysis, and augmented reality (AR) display technologies to address the shortcomings of existing firefighting equipment in information acquisition, command transmission, and equipment coordination. By using a gas sensor array and thermal imaging camera mounted on a detection drone, the gas composition and temperature distribution at the fire scene are detected in real time, providing firefighters with accurate environmental information. Simultaneously, the AR display visually presents the detected data in an overlay layer format, assisting firefighters in quickly identifying key information at the disaster site, such as the location of trapped personnel, the location of the fire source, and areas of hazardous gas concentration. Furthermore, this invention utilizes a cleverly designed drone docking device and edge processor to achieve point-to-point communication and data interaction between the detection drone and the helmet itself, further enhancing the system's stability and reliability.

[0006] To achieve the above objectives, this invention provides a multifunctional fire helmet with thermal imaging and gas composition analysis. Its key features include: a helmet body integrating an AR display and a docking device, and a detection drone that can dock on the helmet body. Both the helmet body and the detection drone are connected to an edge processor for point-to-point communication. The detection drone is also equipped with a gas sensor array and a thermal imaging camera. The gas sensor array and the thermal imaging camera transmit detection data in real time to the edge processor for analysis, converting it into an AR overlay layer and finally displaying it on the AR display. This assists firefighters in confirming the gas composition, temperature distribution, and location of trapped personnel at the disaster site.

[0007] Furthermore, the docking device includes a drive gear and two racks meshing on opposite sides of the gear. A clamping arm is connected to the end of each rack, and the clamping arms form an adjustable-gap drone clamping space. A wireless energy transmitting coil is also arranged on the clamping surface of the clamping arms, and a wireless energy receiving coil is provided in the detection drone corresponding to the wireless energy transmitting coil.

[0008] Furthermore, both the rack and the gear are integrated into an assembly box provided on the helmet body, and a channel opening is provided on each rack on opposite sides of the assembly box.

[0009] Furthermore, a limit stop is connected to each clamping arm, the limit stop extending into the assembly box and used to abut against the adjacent rack; a pulley structure for supporting the limit stop and / or the rack is also provided in the assembly box.

[0010] Furthermore, a servo motor is also provided on the wall of the assembly box, and the servo motor is connected to the drive gear through a worm gear transmission structure.

[0011] Furthermore, an alignment connector is provided in the drone clamping space on the assembly box, and an alignment interface is provided on the detection drone, wherein a detection device for detecting the alignment connector is provided in the alignment interface.

[0012] Furthermore, a thermal imager is mounted on the helmet body via a rotating frame. The position of the thermal imager on the rotating frame is adjustable to suit the visual area of ​​the firefighters.

[0013] Furthermore, a mounting plate is provided around any pivot of the rotating frame, and a ratchet ring is supported on the mounting plate by a planar thrust bearing. The ratchet ring rotates with the rotation of the rotating frame, and a pawl is radially elastically connected in the ratchet ring. A lever is provided on the pawl. In the natural state, the pawl is engaged in the ratchet teeth of the ratchet ring to achieve one-way anti-reverse. When an external force moves the lever, the pawl can disengage from the ratchet teeth of the ratchet ring, and the rotating frame can rotate freely in both directions.

[0014] Furthermore, a breathing mask is provided at the bottom of the helmet body corresponding to the area around the human mouth and nose, and an oxygen supply line is connected to the breathing mask.

[0015] Furthermore, it also includes a belt-integrated device, which incorporates an edge processor, a dual-mode communication module, an oxygen supply unit, and a battery pack. The edge processor connects to the helmet body and the detection drone via the binocular communication module to enable data interaction and remote control. The oxygen supply unit provides a continuous oxygen supply by connecting to a portable gas storage device and an oxygen supply pipeline. The battery pack provides power to all electrical components to ensure continuous and stable operation in complex environments.

[0016] Compared with the prior art, the significant advantages of the present invention are: (1) By integrating thermal imaging, gas composition analysis, and augmented reality (AR) display technologies, the multifunctional fire helmet of this invention significantly improves firefighters' information acquisition capabilities and decision-making efficiency at fire scenes. The thermal imaging function enables firefighters to clearly identify the location of the fire source and temperature distribution even in environments with dense smoke or obstructed vision, thereby quickly formulating effective firefighting strategies. At the same time, the gas composition analysis function provides firefighters with immediate feedback on key environmental information such as O2, CO, CO2, and CH4 by real-time monitoring of gas concentrations at the scene, greatly reducing the safety risks faced by firefighters; (2) The multifunctional fire helmet of the present invention also uses AR display technology to present the detection data to the firefighters in an intuitive and easy-to-understand way. This overlay layer not only improves the readability of the information, but also enables firefighters to quickly identify key information in complex and ever-changing fire environments, such as the location of trapped personnel and dangerous areas, so as to carry out rescue missions more accurately; (3) In terms of equipment collaboration, this invention achieves seamless docking and efficient communication between the detection drone and the helmet body through the designed drone docking device and edge processor. This point-to-point communication method not only improves the stability and reliability of data transmission, but also enables the drone to respond to the firefighter's instructions in real time, achieving precise reconnaissance and collaborative operations. This not only improves the overall performance of firefighting equipment, but also provides new ideas and technical support for future fire rescue work; (4) The multifunctional fire helmet of the present invention has also made significant improvements in terms of battery life and self-sufficiency. The battery pack in the belt-integrated device not only provides sufficient power support for the helmet body and the detection drone, but also ensures that all electrical components can operate continuously and stably in complex and ever-changing fire environments, effectively avoiding equipment failures caused by insufficient power, thereby ensuring that firefighters' information acquisition and communication capabilities are not affected when performing their duties; (5) The oxygen supply unit provides firefighters with a continuous oxygen supply by connecting a portable gas storage device and an oxygen supply pipeline. This function is particularly important at fire scenes, as smoke and high temperatures often cause firefighters to have difficulty breathing or even suffocate. With the oxygen supply system provided by this invention, firefighters can maintain unobstructed breathing for extended periods, thereby improving their survival ability and rescue efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the multi-functional fire helmet in Embodiment 1 (I); Figure 2 This is a schematic diagram of the overall structure of the multi-functional fire helmet in Embodiment 1 (II); Figure 3 This is a schematic diagram of the overall structure of the multi-functional fire helmet in Embodiment 1 (III); Figure 4 This is a schematic diagram (I) of the structure of the multi-functional fire helmet drone when it takes off in Embodiment 1; Figure 5 This is a schematic diagram (II) of the structure of the multi-functional fire helmet drone when it takes off in Embodiment 1; Figure 6 This is a wireframe diagram of the multifunctional fire helmet in Embodiment 1; Figure 7 This is a schematic diagram of the internal structure of the docking device for the multi-functional fire helmet in Embodiment 1 (I). Figure 8 yes Figure 7 Enlarged view of part A in the middle; Figure 9 This is a schematic diagram (II) of the internal structure of the docking device for the multi-functional fire helmet in Embodiment 1. Figure 10 yes Figure 9 Enlarged view of part B in the middle; Figure 11 This is a schematic diagram (I) of the internal structure of the anti-reverse component of the bogie of the multi-functional fire helmet in Embodiment 1. Figure 12 This is a schematic diagram (II) of the internal structure of the anti-reverse component of the bogie of the multi-functional fire helmet in Embodiment 1. Figure 13 yes Figure 12 Enlarged view of a section in the middle C; Figure 14 This is a schematic diagram of the overall structure of the multi-functional fire helmet in Embodiment 2 (I); Figure 15 This is a schematic diagram of the overall structure of the multi-functional fire helmet in Embodiment 2 (II); Figure 16 This is a schematic diagram of the overall structure of the multi-functional fire helmet in Embodiment 2 (III); Numbering in the diagram: 1-AR display, 2-Dock device, 3-Helmet body, 4-Detection drone, 5-Gas sensor array, 6-Thermal imaging camera, 7-Alignment interface, 8-Rotating frame, 9-Thermal imager, 10-Mounting plate, 11-Planar thrust bearing, 12-Ratchet ring, 13-Pawl, 14-Lever, 15-Breathing mask, 16-Oxygen supply line, 17-Waist belt integration device, 201-Drive gear, 202-Rack, 203-Clamping arm, 204-Wireless energy transmission coil, 205-Assembly box, 206-Passageway, 207-Limit stop lever, 208-Pulley structure, 209-Servo motor, 210-Worm gear transmission structure, 211-Alignment connector. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Figures 1 to 5 The first embodiment of the present invention is shown: a multifunctional fire helmet with thermal imaging and gas composition analysis, including a helmet body 3 integrating an AR display 1 and a docking device 2, and a detection drone 4 that can dock on the helmet body 3. Both the helmet body 3 and the detection drone 4 are connected to an edge processor to achieve point-to-point communication. The detection drone 4 is also equipped with a gas sensor array 5 and a thermal imaging camera 6. The gas sensor array 5 and the thermal imaging camera 6 transmit the detection data to the edge processor in real time for analysis, so as to convert it into an AR overlay layer and finally display it on the AR display 1, thereby assisting firefighters in confirming the gas composition, temperature distribution and location of trapped personnel at the disaster site.

[0022] The reconnaissance drone 4 is equipped with a gas sensor array 5, including an electrochemical / O2 sensor, an NDIR CO / CO2 sensor, and a catalytic combustion methane sensor. This array enables high-precision monitoring of various gas concentrations at the fire scene, such as oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), and methane (CH4). This data is crucial for assessing the safety of the scene and developing rescue strategies. The thermal imaging camera 6 can penetrate smoke to clearly capture the location of the fire source and temperature distribution, providing firefighters with real-time thermal images of the fire scene. This helps them quickly locate the fire source and plan effective firefighting routes. The AR display 1 integrated into the helmet 3 converts the received detection data into intuitive AR overlay layers in real time. These layers not only contain gas concentration distribution and temperature thermal maps but also mark the location information of trapped personnel. This information is presented with intuitive icons and color coding, greatly improving the decision-making efficiency and safety of firefighters in complex fire environments. Furthermore, the powerful computing capabilities of the edge processor ensure real-time data processing and analysis, maintaining stable system operation even in extreme environments. The seamless integration of the detection drone 4 with the helmet body 3 allows firefighters to flexibly conduct detection on the ground or in the air, further enhancing their ability to respond to complex rescue missions.

[0023] In this embodiment, the edge processor performs the following operations: generates a gas distribution heatmap based on a multi-gas cross-calibration algorithm; identifies the location coordinates of trapped personnel through thermal imaging; and outputs an AR overlay layer (containing an O2 concentration transparency map, a red mask for the CH4 danger zone, and a personnel location pulse icon). The multi-gas cross-calibration algorithm can eliminate the impact of the following interference factors on detection accuracy: cross-response between sensors (e.g., false response of a CO sensor to H2); temperature and humidity drift (sudden temperature changes at the fire scene cause reading deviations); and masking effects of high-concentration gases (e.g., high concentrations of CO2 affect O2 detection). Specifically: 1. Dynamic interference compensation matrix enter:

[0024] Compensation formula:

[0025] in:

[0026] 2. Concentration inversion calculation layer: Nonlinear least squares fitting is used:

[0027] in: The calibrated concentration (output value of the compensation formula, corresponding to the i-th gas); This represents the true concentration vector; Sensor response function (e.g., the logarithmic response of a CO electrochemical sensor); This represents the standard deviation of noise for each sensor.

[0028] 3. Credibility assessment and anomaly filtering: Dynamic confidence score

[0029] in: The sensor's current raw readings (in order: O2, CO, CO2, CH4); Sensor readings predicted by LSTM (time series prediction based on historical data); Euclidean distance of prediction error (quantifying the deviation between actual measurement and prediction). Maximum range of each sensor (used for error normalization). Output confidence level (0-1, the higher the value, the more reliable).

[0030] Furthermore, this implementation uses AR spatial anchoring technology to achieve precise spatial mapping from the detection coordinates of the detection drone 4 to the firefighter's AR field of view, ensuring that the thermal imaging icon and gas warning area are aligned with the real scene in the AR display 1: The coordinate transformation formula based on the helmet-mounted 3IMU gyroscope and the UAV's 4GPS is as follows:

[0031] in: , To detect the global coordinates (GPS / RTK positioning) of the target detected by the drone 4; , To detect the initial coordinate origin (position of helmet body 3) when the drone 4 takes off. For rotation matrix (rotating the drone's 4-axis coordinate system to the helmet coordinate system); , y represents the dynamic compensation amount caused by the helmet's posture (calculated based on IMU data); , Ultimately, these coordinates are mapped to the two-dimensional display pixels in the AR field of view.

[0032] Understandably, whether the reconnaissance drone 4 is launched or docked, its thermal imaging camera and gas sensor array 5 establish a connection with the AR display 1 through an edge processor to ensure real-time data transmission and display. When the reconnaissance drone 4 is launched for reconnaissance, it acquires the global coordinates of the target using GPS or RTK technology, and then, using data from the IMU gyroscope in the helmet 3, combines it with coordinate transformation formulas to accurately map the detection data into the firefighter's AR field of vision. This process not only improves the accuracy of data processing but also greatly enhances the firefighter's perception capabilities in complex fire scene environments, enabling them to make decisions more quickly and accurately.

[0033] like Figures 6 to 10 As shown, in a specific implementation, the docking device 2 includes a drive gear 201 and two racks 202 meshing on opposite sides of the drive gear. A clamping arm 203 is connected to the end of each rack 202, and the clamping arms 203 form an adjustable-space clamping space for the drone 4. A wireless power transmitting coil 204 is also arranged on the clamping surface of the clamping arms 203, and a wireless power receiving coil is provided on the detection drone 4 corresponding to the wireless power transmitting coil 204. When the detection drone 4 docks with the device, the wireless power transmitting coil 204 aligns with the wireless power receiving coil on the detection drone 4, achieving non-contact energy transfer and providing continuous power support for the detection drone 4.

[0034] Specifically, the rack 202 and the gear are both integrated into the assembly box 205 provided on the helmet body 3, and a channel opening 206 is provided on each opposite side of the assembly box 205 corresponding to each rack 202. A limit stop bar 207 is connected to each clamping arm 203, and the limit stop bar 207 extends into the assembly box 205 to abut against the adjacent rack 202; a pulley structure 208 is also provided in the mounting box to support the limit stop bar 207 and / or the rack 202. A servo motor 209 is also provided on the wall of the assembly box 205, and the servo motor 209 is connected to the drive gear 201 through a worm gear transmission structure 210. When the servo motor 209 is started, it drives the drive gear 201 to rotate through the worm gear transmission structure 210, thereby causing the two racks 202 to move in opposite directions or in the channel openings 206 in the assembly box 205. The movement of the rack 202 causes the clamping arms 203 connected to its end to move synchronously, thereby adjusting the spacing between the clamping arms 203 to achieve fixed docking of the detection drone 4. The design of the limit stop ensures the stability and accuracy of the clamping arms 203 during movement, preventing damage to the detection drone 4 due to excessive movement. At the same time, the pulley structure 208 reduces friction between the limit stop and the rack 202 during movement, improving the smoothness and durability of the overall structure.

[0035] Please seeFigure 4 and Figure 5 In practical applications, a centering connector 211 is provided in the clamping space of the drone 4 on the assembly box 205, and a centering interface 7 is provided on the detection drone 4. The centering interface 7 is equipped with a detection device for detecting the centering connector 211. When the detection drone 4 is ready to dock, its detection device actively searches for and identifies the centering connector 211 in the assembly box 205. Once successfully identified, the detection drone 4 automatically adjusts its attitude according to the position of the centering connector 211, ensuring precise docking between the centering interface 7 and the centering connector 211. This design not only simplifies the docking process of the detection drone 4 but also greatly improves the accuracy and stability of docking. Furthermore, the design of the centering connector 211 and the centering interface 7 also features dustproof and waterproof capabilities, effectively protecting the normal operation of the detection drone 4 in harsh environments.

[0036] from Figures 11 to 13 As can be seen, in this embodiment, a thermal imager 9 is also mounted on the helmet body 3 via a rotating frame 8. The position of the thermal imager 9 on the rotating frame 8 is adjustable to suit the visual field of firefighters. In some application scenarios where the detection drone 4 cannot take off, firefighters can quickly adjust the thermal imager 9 to their visual field by adjusting the rotating frame 8, thereby quickly locating the position of trapped personnel and completing the rescue mission. The adjustability of the thermal imager 9's position can meet the differentiated needs of different firefighters, thus improving the versatility of the equipment.

[0037] Specifically, a mounting plate 10 is provided around any pivot of the rotating frame 8. A ratchet ring 12 is supported on the mounting plate 10 by a planar thrust bearing 11. The ratchet ring 12 rotates with the rotating frame 8, and a pawl 13 is radially elastically connected to the ratchet ring 12. A lever 14 is provided on the pawl 13. In its natural state, the pawl 13 engages with the ratchet teeth of the ratchet ring 12 to achieve one-way anti-reverse. When an external force moves the lever 14, the pawl 13 can disengage from the ratchet teeth of the ratchet ring 12, and the rotating frame 8 can rotate freely in both directions. This design ensures that the thermal imager 9 can be stably stationary in a certain position when needed, while also being flexibly adjustable when precise fixation is not required. The cooperation between the ratchet ring 12 and the pawl 13 provides both the necessary locking function and maintains the flexibility of rotation. Firefighters can quickly locate and adjust the thermal imager 9 according to actual needs through simple operation, thereby improving rescue efficiency. In addition, the use of mounting plate 10 and flat thrust bearing 11 enhances the structural stability of rotating frame 8, enabling thermal imager 9 to remain stable during adjustment and avoid shaking, further improving the reliability and practicality of the equipment.

[0038] Regarding the oxygen supply system, the tight connection between the oxygen supply line 16 and the breathing mask 15 ensures the oxygen supply for firefighters during prolonged rescue operations. The oxygen supply line 16 incorporates flow and pressure sensors to monitor oxygen flow and pressure in real time, ensuring the stability and safety of the oxygen supply. If any abnormality occurs in the oxygen supply, the system will immediately issue an alarm, alerting firefighters to take appropriate measures, thereby avoiding the risk of breathing difficulties or suffocation due to insufficient oxygen.

[0039] As a preferred option, the oxygen supply is automatically regulated based on an oxygen adaptive regulation algorithm:

[0040] when When the oxygen supply is below a preset safety threshold (e.g., 19.5%), the oxygen supply... The system automatically adjusts its oxygen levels based on the firefighter's breathing rate (BPM) to ensure their safety in low-oxygen environments. This adaptive control algorithm effectively addresses rapid changes in oxygen concentration in extreme environments such as fire scenes, ensuring firefighters receive sufficient oxygen.

[0041] Figures 14 to 16 A second embodiment of the invention is shown, which, in practical application, further includes a belt integration device 17. The belt integration device 17 houses an edge processor, a dual-mode communication module, an oxygen supply unit, and a battery pack. The edge processor connects to the helmet body 3 and the detection drone 4 via the binocular communication module, enabling data interaction and remote control. The oxygen supply unit continuously provides oxygen by connecting to a portable gas storage device and an oxygen supply pipeline 16. The battery pack provides power to all electrical components, ensuring continuous and stable operation in complex environments. The edge processor possesses powerful data processing capabilities, enabling real-time analysis of data from the helmet body 3 and the detection drone 4, identifying potential safety hazards through built-in intelligent algorithms, and reacting quickly. The dual-mode communication module ensures the stability and reliability of data transmission, achieving seamless integration for both short-range communication between the helmet and the belt and long-range communication with a remote command center. The oxygen supply unit is designed with the actual needs of firefighters in mind, employing efficient and energy-saving oxygen supply technology to ensure a sufficient and stable oxygen supply during extended operations. Meanwhile, the oxygen supply pipeline 16 is made of high-quality materials, possessing excellent high-temperature resistance and wear resistance, effectively extending its service life. The battery pack, as the energy core of the entire system, uses high-energy-density lithium batteries, ensuring a continuous and stable power supply in complex environments. Furthermore, the battery pack features intelligent power management, automatically adjusting power consumption based on system operating status, further extending its operating time.

[0042] In addition, the edge processor is responsible for monitoring the overall status of the oxygen supply system, including data from flow and pressure sensors, as well as the remaining battery power. If any anomaly is detected, such as insufficient oxygen flow, low pressure, or depleted battery power, the system will immediately issue a visual alarm via the AR display 1 on the helmet body 3 and send an emergency signal to the command center via the built-in communication module, ensuring firefighters can receive support quickly.

[0043] In summary, by integrating thermal imaging, gas composition analysis, and augmented reality (AR) display technologies, this invention significantly enhances firefighters' information acquisition capabilities and decision-making efficiency at fire scenes. The thermal imaging function enables firefighters to clearly identify the location of the fire source and temperature distribution even in smoke-filled or obstructed environments, allowing for the rapid development of effective firefighting strategies. Simultaneously, the gas composition analysis function provides firefighters with immediate feedback on key environmental information such as O2, CO, CO2, and CH4 by real-time monitoring of on-site gas concentrations, greatly reducing the safety risks faced by firefighters. Furthermore, the multi-functional fire helmet utilizes AR display technology to present the detected data to firefighters in an intuitive and easy-to-understand manner. This overlay layer not only improves information readability but also enables firefighters to quickly identify critical information, such as the location of trapped personnel and dangerous areas, in complex and ever-changing fire environments, thus allowing for more precise rescue operations. Regarding equipment collaboration, this invention achieves seamless integration and efficient communication between the detection drone 4 and the helmet body 3 through the designed drone 4 docking device 2 and edge processor. This point-to-point communication method not only improves the stability and reliability of data transmission, but also enables the UAV 4 to respond to firefighters' instructions in real time, achieving precise reconnaissance and collaborative operations. It not only enhances the overall performance of firefighting equipment but also provides new ideas and technical support for future fire rescue work. The multi-functional fire helmet of this invention also makes significant improvements in battery life and self-sufficiency. The battery pack in the belt integration device 17 not only provides sufficient power to the helmet body 3 and the detection UAV 4, but also ensures that all electrical components can operate continuously and stably in complex and changing fire environments, effectively avoiding equipment failures due to insufficient power, thus ensuring that firefighters' information acquisition and communication capabilities are not affected during missions. The oxygen supply unit provides firefighters with a continuous oxygen supply by connecting the portable gas storage device and the oxygen supply pipeline 16. This function is particularly important at fire scenes, as smoke and high temperatures often cause firefighters to have difficulty breathing or even suffocate. Through the oxygen supply system provided by this invention, firefighters can maintain unobstructed breathing for extended periods, thereby improving their survival ability and rescue efficiency.

[0044] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A multi-functional firefighting helmet with thermal imaging and gas component analysis, characterized in that: The application relates to a helmet body comprising an integrated AR display and a parking device, and a detection unmanned aerial vehicle which can be parked on the helmet body, wherein the helmet body and the detection unmanned aerial vehicle are connected with an edge processor to realize point-to-point communication; a gas sensor array and a thermal imaging camera are further arranged on the detection unmanned aerial vehicle, the gas sensor array and the thermal imaging camera transmit detection data to the edge processor in real time for analysis, conversion into an AR superimposed layer and final display on the AR display, thereby assisting firefighters in confirming gas components, temperature distribution and trapped personnel positions in a disaster site.

2. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 1, wherein: The parking device comprises a driving gear and two racks engaged on opposite sides of the gear, each end of each rack is connected with a clamping arm, the clamping arms form an unmanned aerial vehicle clamping space with adjustable spacing, a wireless energy transmitting coil is arranged on the clamping surface of the clamping arm, and a wireless energy receiving coil is arranged in the detection unmanned aerial vehicle corresponding to the wireless energy transmitting coil.

3. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 2, wherein: The racks and the gear are integrated in an assembly box arranged on the helmet body, and a passage is formed on the opposite sides of the assembly box corresponding to each rack.

4. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 3, wherein: A limiting stopper is connected to each clamping arm, the limiting stopper extends into the assembly box and is used for abutting against the close rack, and a pulley structure for supporting the limiting stopper and / or the rack is arranged in the assembly box.

5. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 4, wherein: A servo motor is arranged on the wall of the assembly box, and the servo motor is connected with the driving gear through a worm and gear transmission structure.

6. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 5, wherein: A centering joint is arranged in the unmanned aerial vehicle clamping space of the assembly box, and a centering interface is formed on the detection unmanned aerial vehicle, and a detection device for detecting the centering joint is arranged in the centering interface.

7. The multi-functional firefighting helmet with thermal imaging and gas component analysis of any one of claims 1-6, wherein: A thermal imager is arranged on the helmet body through a rotating frame, the position of the thermal imager on the rotating frame is adjustable to adapt to the visual area of firefighters.

8. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 7, wherein: A mounting disc is arranged around any pivot of the rotating frame, a ratchet ring is supported on the mounting disc through a plane thrust bearing, the ratchet ring rotates along with the rotation of the rotating frame, a pawl is elastically connected in the ratchet ring in the radial direction, and a lever is arranged on the pawl; in a natural state, the pawl is clamped into the ratchet teeth of the ratchet ring to realize one-way non-reversing; when the lever is driven by external force, the pawl can be separated from the ratchet teeth of the ratchet ring, and the rotating frame can rotate bidirectionally freely.

9. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 1 or 8, wherein: A breathing mask is arranged on the bottom of the helmet body corresponding to the mouth and nose of a human body, and an oxygen supply pipeline is connected to the breathing mask.

10. The multi-functional firefighting helmet with thermal imaging and gas component analysis of claim 1, wherein: A waistband integrated device is further arranged, the waistband integrated device is provided with an edge processor, a dual-mode communication module, an oxygen supply unit and a battery pack; the edge processor is connected with the helmet body and the detection unmanned aerial vehicle through the dual-mode communication module to realize data interaction and remote control; the oxygen supply unit is connected with a portable gas storage device and the oxygen supply pipeline to continuously supply oxygen; and the battery pack provides power support for all electrical elements to ensure continuous and stable operation in a complex environment.

Images