An accessory detachable intelligent fire helmet and command system

Abstract

The utility model discloses an accessory detachable wisdom fire helmet and command system belong to fire helmet technical field. An accessory detachable wisdom fire helmet, including cap shell, still include: bolt nut structure, face guard, accessory attachment track and a plurality of T shape adjustable elastic clamping seat, each adjustable elastic clamping seat all is provided with detachable function module, wherein, detachable function module is one of processor module, positioning module, image module, combustible gas detection module and fall detection module, the utility model can realize the free combination to different accessory module, satisfy detachable easy replacement's use demand, realize the automatic acquisition of on -the -spot image data, environmental data, firefighter data etc. information, carry out monitoring and early warning, and carry out real -time communication through bone conduction earphone, improve the scientific nature and practicality of decision, further enhance the scientific nature of on -the -spot rescue action and guarantee firefighter life safety.

Description

Technical Field

[0001] This utility model relates to the field of fire helmet technology, and in particular to a smart fire helmet with detachable accessories and a command system. Background Technology

[0002] Firefighters need to carry a large amount of equipment when conducting fire fighting or rescue operations. For example, during fire fighting, they need to carry monitoring devices to meet the needs of real-time image transmission, walkie-talkies to meet communication needs, infrared thermal imagers to meet the needs of fire scene reconnaissance, and distress calls to ensure that firefighters can receive timely assistance if they encounter danger. The complex and ever-changing environment of a fire scene necessitates that command personnel at the rear maintain a timely understanding of the situation to make informed decisions.

[0003] Existing integrated smart fire helmets have complex manufacturing processes, resulting in high replacement costs after reaching their service life. Furthermore, their integrated and fixed functions limit their application scenarios, and the limited lifespan of internal electronic components makes replacement difficult, leading to complex repairs in case of malfunction. Velcro fire helmets may experience a decrease in adhesive strength under vibration, high temperatures, or humidity, posing a risk of detachment, and their functional expansion is limited. Traditional helmets offer 10cm side rails for adding equipment, but the number of devices that can be installed is limited, and the compatibility of the clips used for adding equipment is also limited. Additionally, current smart helmets are mostly equipped with a single infrared camera or a combination of infrared and visible light cameras, requiring manual mode switching as needed. Decision-making and communication are primarily conducted via public network walkie-talkies, which are attached to the firefighting or rescue clothing via a back clip. Communication requires pressing a call button on the left side, resulting in low operational convenience. Currently, on-site information collection and decision-making communication methods are limited and inconvenient. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a smart fire helmet with detachable accessories and a command system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A smart fire helmet with detachable accessories, including a helmet shell, and also including:

[0007] A bolt and nut structure, wherein two sets of the bolt and nut structure are provided and respectively located on both sides of the cap;

[0008] A face mask, rotatably connected to the outside of two sets of bolt and nut structures, is used to protect the firefighter's face and eyes;

[0009] The accessory attachment track is semi-circular and covers the side of the cap shell away from the face mask;

[0010] And several T-shaped adjustable elastic clamping seats, the adjustable elastic clamping seats being slidably connected to the accessory attachment rail, each of the adjustable elastic clamping seats being provided with a detachable functional module;

[0011] The detachable functional module is one of a processor module, a positioning module, an image module, a combustible gas detection module, and a fall detection module.

[0012] Preferably, the accessory attachment track has an arc-shaped groove with openings at both ends, and the accessory attachment track closes the openings at both ends of the arc-shaped groove by a bolt and nut structure, and the adjustable elastic clamping seat is slidably connected in the arc-shaped groove.

[0013] Preferably, the processor module includes a core processor, a WiFi protocol processor, and a converter. The core processor communicates wirelessly with the positioning module, the image module, the combustible gas detection module, and the fall detection module through the WiFi protocol processor and the converter.

[0014] Preferably, the positioning module includes an indoor positioning unit based on WIFI / PDR fusion, which fuses WIFI positioning and PDR positioning through an extended Kalman filter algorithm; wherein, the PDR positioning unit includes an inertial sensor and a barometer.

[0015] Preferably, the image module includes a visible light image sensor, a thermal imaging sensor, and a processor unit for image fusion.

[0016] Preferably, the combustible gas detection module employs a combustible gas sensor to detect combustible gases in the air.

[0017] Preferably, the fall detection module uses a motion processing sensor to detect abnormal postures of firefighters and send alarm signals to the command system via a public / private network.

[0018] This application also discloses a command system, including the aforementioned detachable smart fire helmet, a back-end command terminal, and a bone conduction headset, wherein the bone conduction headset is used to receive instructions sent by the back-end command terminal to the processor module via a public network / private network.

[0019] Compared with the prior art, this utility model provides a smart fire helmet with detachable accessories and a command system, which has the following beneficial effects:

[0020] 1. This accessory is a detachable smart fire helmet and command system. By attaching a track to the positioning module, image module, combustible gas detection module, and fall detection module, the traditional fire helmet's functions can be expanded. Through bone conduction headphones, intelligent information acquisition can be achieved, allowing commanders to keep abreast of the situation and the status of firefighters, communicate in real time, and assist in decision-making, thereby improving the safety and efficiency of firefighters in firefighting and rescue operations.

[0021] 2. This accessory is a detachable smart fire helmet and command system. Different functional modules are clamped and positioned on the accessory attachment track by an adjustable elastic clamping seat. The accessory modules can be freely combined according to different usage scenarios, making replacement convenient and reducing maintenance costs. If the accessory technology is upgraded, it can be replaced efficiently. Attached Figure Description

[0022] Figure 1 This is a block diagram of the command system of this utility model;

[0023] Figure 2 This is a schematic diagram of the external structure of the cap shell of this utility model;

[0024] Figure 3 This is a schematic diagram of the adjustable elastic clamping seat of this utility model.

[0025] In the diagram: 1. Cap shell; 2. Bolt and nut structure; 3. Face mask; 4. Accessory attachment rail; 5. Adjustable elastic clamping seat; 6. Processor module; 7. Positioning module; 8. Image module; 9. Combustible gas detection module; 10. Fall detection module; 11. Back-end command terminal; 12. Bone conduction headphones. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] like Figures 1 to 3 As shown, this embodiment proposes a smart fire helmet with detachable accessories, including a helmet shell 1, and further including: bolt and nut structure 2, a face mask 3 for protecting the firefighter's face and eyes, accessory attachment track 4, and several T-shaped adjustable elastic clamps 5. The bolt and nut structure 2 is provided in two sets and is respectively provided on both sides of the helmet shell 1. The face mask 3 is rotatably connected to the outside of the two sets of bolt and nut structures 2. The accessory attachment track 4 is semi-circular and covers the side of the helmet shell 1 away from the face mask 3. The adjustable elastic clamps 5 are slidably connected to the accessory attachment track 4. Each adjustable elastic clamp 5 is provided with a detachable functional module, wherein the detachable functional module is one of a processor module 6, a positioning module 7, an image module 8, a combustible gas detection module 9, and a fall detection module 10.

[0030] The helmet shell 1 is made of high-temperature resistant material, with an internal cushioning layer and comfort padding to reduce external force on the head and protect the firefighter's head safety. The helmet shell 1 is fixed at both ends to the face shield 3 and accessory attachment rails 4 via bolt-nut structure 2. Bolt-nut structure 2 is existing technology, specifically consisting of bolts fixed to the helmet shell 1 and nuts threaded onto the bolts. The nuts fix the face shield 3 and accessory attachment rails 4. The face shield 3 is made of high-temperature resistant and flame-retardant material, with an outward-folding straight-plate design, effectively blocking heat radiation and flying debris (such as sparks and broken glass) in the fire scene, protecting the firefighter's face and eyes from direct injury. When firefighters receive a rescue mission, they can... Different types of services (firefighting and rescue, disaster relief and rescue, and social assistance) require different functional requirements. Different equipment is selected based on these requirements. Taking firefighting and rescue as an example, firefighters select to equip themselves with processor module 6, positioning module 7, image module 8, and combustible gas detection module 9. After firefighters enter the fire scene at the first rescue site, all modules work together to collect information such as on-site image data, environmental data, and firefighter data, and to monitor and issue early warnings. This allows command personnel to view the on-site situation in real time, make scientific and correct commands, improve the scientific nature and effectiveness of decision-making, further enhance the scientific nature of on-site rescue operations, and ensure the safety of firefighters.

[0031] like Figure 2 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, an arc-shaped groove with openings at both ends is provided on the accessory attachment track 4. The accessory attachment track 4 is closed at the openings at both ends of the arc-shaped groove through the bolt-nut structure 2. The adjustable elastic clamping seat 5 is slidably connected in the arc-shaped groove;

[0032] The arc-shaped accessory attachment track 4 is integrally semi-circular and attached to the helmet shell 1. The arc-shaped groove is a "mouth"-shaped opening structure, and the two ends of the arc-shaped groove remain open. Each module is installed on the helmet shell 1 through the "T"-shaped adjustable elastic clamping seat 5. The two ends of the track play a role in fixing the face mask 3 and keeping the two ends of the open arc-shaped groove relatively closed through the bolt-nut structure 2. Users can combine them according to needs to meet the usage requirements in different scenarios, meet the usage requirements of convenient maintenance and convenient upgrade, and solve the problems of few installed accessories, fixed installation positions, easy detachment after installation, and inconvenience in installation and disassembly of existing fire helmets.

[0033] As Figure 1 shown, as a preferred embodiment, on the basis of the above method, further, the processor module 6 includes a core processor, a WiFi protocol processor, and a converter. The data transmission method of the processor module 6 adopts the BLE5.3 protocol to realize wireless communication between the processor module 6 and the positioning module 7, the image module 8, the combustible gas detection module 9, and the fall detection module 10;

[0034] The core processor is selected as Nordic nRF5340, which supports the BLE5.3 protocol stack, integrates the DSP instruction set, and supports the sensor fusion algorithm; the WiFi coprocessor is selected as ESP32-C6, which supports the BLE5.3 protocol stack, supports 2.4GHz Wi-Fi 6, continuously scans the surrounding WiFi hotspots (SSID, MAC address), records the signal strength (RSSI), constructs an environmental fingerprint database, and matches the real-time RSSI data with the fingerprint database to output the preliminary position coordinates, avoiding interference with BLE communication and meeting the demand for intensive calculation of the fingerprint positioning algorithm; the converter TPS63802 can perform power management in scenarios where high output current and low power consumption are required; the data transmission method uses BLE5.3 for data transmission to ensure wireless transmission, realize complete independence between the processor and the functional modules, facilitate maintenance, replacement, and upgrade. BLE5.3 has low power consumption, can run for a long time without frequent battery replacement, has multi-connection capabilities, and can connect quickly.

[0035] As Figure 1As shown, in a preferred embodiment, based on the above method, the positioning module 7 further includes an indoor positioning unit based on WIFI / PDR fusion, which fuses WIFI positioning and PDR positioning through an extended Kalman filter algorithm; wherein, WIFI positioning uses the signal strength of existing WIFI nodes in the building to calculate the position, and PDR positioning obtains displacement data through inertial sensors and barometers, so as to achieve continuous positioning when the WIFI signal is lost or attenuated.

[0036] This indoor positioning technology employs a fusion of Wi-Fi and PDR. PDR displacement results are used as a prerequisite to filter Wi-Fi location fingerprint positioning results, and then an extended Kalman filter fusion algorithm is used for fusion calculation. This avoids the drawbacks of UWB and RFID, which require base station deployment and are costly. Most buildings have high Wi-Fi node coverage, so terminal devices with Wi-Fi capabilities can calculate their location by receiving signal strength values ​​from nearby fixed Wi-Fi nodes without needing additional positioning equipment. PDR positioning can compensate for the weakening of Wi-Fi signal strength, significantly reduced propagation distance, or Wi-Fi signal loss after passing through buildings, thus achieving continuous positioning. The main sensors for PDR positioning are the IMUBMI270 and the BMP581 barometer. The BMI270 integrates a 16-bit three-axis accelerometer and a 16-bit three-axis gyroscope, supporting 6-axis measurement and boasting ultra-low power consumption. The BMP581 offers high accuracy and low power consumption.

[0037] like Figure 1 As shown, in a preferred embodiment, based on the above method, the image module 8 further includes a visible light image sensor, a thermal imaging sensor, and a processor unit for image fusion.

[0038] The main sensors in image module 8 are the OV5640 visible light image sensor and the FLIR Lepton 3.5 thermal imaging sensor. The OV5640 supports still image capture of up to 2592x1944 pixels, meeting the requirements of high-definition video recording, and has a low-power mode to meet usage needs. The FLIR Lepton 3.5 has a thermal sensitivity of less than 50mK, which can accurately identify minute temperature differences, thereby generating clearer and more accurate thermal images. It adopts visible light and infrared image fusion, using the visible light image to provide rich texture and detail information, while the infrared image highlights the characteristics of thermal radiation targets. The processor unit can combine the information collected by the two to generate more informative images, helping to more accurately identify flames and targets, overcoming the limitations of a single image, improving the detection accuracy, robustness and target visibility in complex fire environments, and enhancing global fire scene perception by combining the details of visible light and the temperature information of infrared.

[0039] like Figure 1As shown, in a preferred embodiment, based on the above method, the combustible gas detection module 9 further employs a combustible gas sensor, such as the British Gas Shield UGT-5 sensor and the ACM3000 sensor, to detect combustible gases in the air. The British Gas Shield UGT-5 can simultaneously detect multiple combustible gases such as methane, ethane, propane, benzene, and toluene, and has high sensitivity, high temperature resistance, and corrosion resistance. The ACM3000 is used to detect carbon monoxide gas, with fast response and high sensitivity, and is used to monitor the lower explosive limit concentration in real time and trigger an early warning signal.

[0040] like Figure 1 As shown, in a preferred embodiment, based on the above method, the fall detection module 10 further employs a motion processing sensor to detect abnormal postures of firefighters and send alarm signals to the command system via the BLE5.3 protocol. The main sensor of the fall detection module 10 is the MPU6050, which is small in size, low in power consumption, and has high measurement accuracy. It is a 6-axis motion processing sensor that integrates a 3-axis gyroscope and a 3-axis accelerometer. It can issue alarms to remind firefighters of abnormal falls, ensuring timely response and reducing the probability of accidental injury or death of firefighters.

[0041] like Figure 1 As shown, as a preferred embodiment, based on the above method, this embodiment further proposes a command system, including the above-mentioned detachable smart fire helmet, as well as a background command terminal 11 and a bone conduction headset 12. The bone conduction headset 12 is used to receive instructions sent by the background command terminal 11 to the processor module 6 through the public network / private network.

[0042] The system integrates on-site image collection, environmental information collection, and firefighter information collection through positioning module 7, image module 8, combustible gas detection module 9, and fall detection module 10. Data is processed and transmitted through processor module 6, and real-time monitoring is achieved through back-end command terminal 11 or APP. This reduces the burden on on-site firefighters, facilitates command personnel's decision-making, and enables real-time communication through bone conduction headphones 12, improving the scientific nature and effectiveness of decision-making, achieving early risk warning, and ensuring the safety of firefighters at the scene.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A smart fire helmet with detachable accessories, comprising a helmet shell (1), characterized in that, Also includes: Bolt and nut structure (2), wherein two sets of bolt and nut structure (2) are provided and respectively provided on both sides of cap (1); A face mask (3) is rotatably connected to the outside of two sets of bolt and nut structures (2) for protecting the firefighter's face and eyes; The attachment track (4) is semi-circular and covers the side of the cap (1) away from the mask (3); And several T-shaped adjustable elastic clamps (5), the adjustable elastic clamps (5) are slidably connected to the accessory attachment rail (4), and each of the adjustable elastic clamps (5) is provided with a detachable functional module; The detachable functional module is one of the following: processor module (6), positioning module (7), image module (8), combustible gas detection module (9), and fall detection module (10).

2. The smart fire helmet with detachable accessories according to claim 1, characterized in that, The accessory attachment track (4) has an arc-shaped groove with openings at both ends. The accessory attachment track (4) closes the openings at both ends of the arc-shaped groove through a bolt and nut structure (2). The adjustable elastic clamping seat (5) is slidably connected in the arc-shaped groove.

3. The smart fire helmet with detachable accessories according to claim 1, characterized in that, The processor module (6) includes a core processor, a WiFi protocol processor, and a converter. The core processor communicates wirelessly with the positioning module (7), the image module (8), the combustible gas detection module (9), and the fall detection module (10) through the WiFi protocol processor and the converter.

4. A smart fire helmet with detachable accessories according to claim 3, characterized in that, The positioning module (7) includes an indoor positioning unit based on WIFI / PDR fusion, wherein the PDR positioning unit includes an inertial sensor and a barometer.

5. A smart fire helmet with detachable accessories according to claim 3, characterized in that, The image module (8) includes a visible light image sensor, a thermal imaging sensor, and a processor unit for image fusion.

6. A smart fire helmet with detachable accessories according to claim 3, characterized in that, The combustible gas detection module (9) uses a combustible gas sensor to detect combustible gases in the air.

7. A smart fire helmet with detachable accessories according to claim 3, characterized in that, The fall detection module (10) uses a motion processing sensor to detect abnormal postures of firefighters and send alarm signals to the command system.

8. A command system comprising the detachable smart fire helmet as described in claim 3, characterized in that, It also includes a back-end command terminal (11) and a bone conduction headset (12), the bone conduction headset (12) being used to receive instructions from the back-end command terminal (11) and send them to the processor module (6).

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