A firefighter distress device with gas detection function

Abstract

This utility model belongs to the technical field of personal protective equipment for firefighters, and discloses a firefighter distress call device with gas detection function. It includes a main body with a detection box and a display screen. The detection module inside the detection box includes an electrochemical sensor assembly and a MEMS sensor. A battery compartment is located at the bottom of the main body. A control chip, an audio-visual module, and a communication and positioning module are installed inside the main body. The audio-visual module, communication and positioning module, detection module, and display screen all interact with the control chip. The audio-visual module includes a directional indicator light and a buzzer. The communication and positioning module includes a communication module, a positioning module, and a Bluetooth module. The detection module detects flammable and toxic gases, enabling rapid response to explosion risks and ensuring early warning of low concentrations of toxic gases. The positioning module and communication assembly locate the firefighter for convenient communication. The audio-visual module emits multiple sets of audio-visual combinations to achieve different warning effects.

Description

Technical Field

[0001] This utility model relates to the field of personal protective equipment for firefighters, and in particular to a firefighter distress call device with gas detection function. Background Technology

[0002] According to relevant national and industry standards such as GB / T 29178, XF621, and XF622, firefighter distress calls are essential equipment for firefighters during firefighting and rescue operations and are mandatory. All firefighters participating in firefighting and rescue operations must wear them. Furthermore, according to national and industry standards, firefighters must also carry various gas detection devices to detect toxic and flammable gases at fire scenes or other rescue sites to maximize their personal safety. They also need to carry other communication equipment. This results in firefighters carrying too many individual devices, each requiring individual operation, significantly increasing their burden during firefighting and rescue operations. Currently, firefighter distress calls are mandatory for every firefighter, but their functions are relatively limited, generally only providing audible and visual alarms and lacking gas detection capabilities. Moreover, their effectiveness in calling for help after a firefighter is in danger is also limited. Therefore, there is an urgent need for a firefighter distress call device that integrates more functions to solve the above problems. Utility Model Content

[0003] The present invention aims to provide a firefighter distress call device with gas detection function, in order to solve the problem that current distress call devices cannot detect gases and have only single functions.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The basic technical solution provided by this utility model is as follows: a firefighter distress call device with gas detection function, comprising a distress call device body, a detection box and a display screen respectively disposed on the distress call device body, a detection module disposed inside the detection box, the detection module including an electrochemical sensor assembly and a MEMS sensor; a battery compartment is disposed at the bottom of the distress call device body, a control chip, an audio-visual module and a communication and positioning module are disposed inside the distress call device body, the audio-visual module, the communication and positioning module, the detection module and the display screen all interact with the control chip and control their corresponding actions through the control chip; the audio-visual module includes a directional indicator light and a buzzer; the communication and positioning module includes a communication module, a positioning module and a Bluetooth module, the communication module protruding from the top of the distress call device body and located on its surface; a communication button and a distress call button are disposed on the side of the distress call device body.

[0006] Preferably, a locking assembly is provided between the battery compartment and the main body of the emergency call device. The locking assembly includes a locking plate and a locking block. Two sets of locking blocks are arranged opposite each other and are inserted into the cavity inside the main body of the emergency call device. The tops of the two sets of locking blocks protrude from the main body of the emergency call device and are connected to the pressure plate. An elastic sheet is provided on the bottom surface of the locking block. The end of the locking block engages with the locking plate. The locking plate is set on the battery compartment.

[0007] Preferably, an elastic locking pin is provided in the through hole of the distress button, the elastic locking pin is in contact with the surface of the distress call device body, the end of the elastic locking pin is connected to one end of the elastic rope, and the other end of the elastic rope is connected to the distress call device body.

[0008] Preferably, the communication positioning module is equipped with a retractable antenna, which is made of ceramic material.

[0009] Preferably, the main body of the distress call device has a built-in auxiliary module that interacts with the control chip. The auxiliary module includes a temperature and humidity sensor and a barometer.

[0010] Preferably, a flashlight is installed inside the main body of the distress caller, and the end of the flashlight is magnetically attached to the main body of the distress caller.

[0011] Preferably, a connecting groove is provided on the back of the distress call device body, a connecting block is engaged in the connecting groove, the connecting block is mounted on the back clip, and the back clip is located on the back of the distress call device body.

[0012] The basic technical solution's principle and beneficial effects are as follows: After firefighters wear this distress call device into a fire scene or other fire rescue site, the MEMS sensor in the detection module rapidly detects combustible gases. Its high detection rate allows for quick response to explosion risks. The electrochemical sensor component detects various toxic gases and oxygen, ensuring low concentrations of toxic gases and providing early warnings of oxygen concentrations. After information processing by the control chip, the current environmental gas status is displayed in real time on the screen. The positioning module and communication component can locate the firefighter's position and facilitate communication between the firefighter and teammates and command center. The Bluetooth module can connect with the firefighter's smartwatch / wristband, acquiring real-time vital signs. After processing by the control chip, the communication and positioning module wirelessly transmits the information to the command center for monitoring the firefighters' physical condition and maximizing their safety. The directional indicator light and buzzer on the sound and light module work together to emit different colored lights and different frequency buzzers, providing different warning effects for various situations, thus improving the device's effectiveness. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a firefighter distress call device with gas detection function according to the present invention;

[0014] Figure 2This is a schematic diagram of the assembly structure of a firefighter distress call device with gas detection function according to the present invention;

[0015] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0016] Figure 4 This is a schematic diagram of the locking component in a firefighter distress call device with gas detection function according to the present invention;

[0017] Figure 5 This is a schematic diagram of the back of a firefighter distress call device with gas detection function according to the present invention;

[0018] Figure 6 This is an engineering drawing of each module in a firefighter distress call device with gas detection function according to this utility model;

[0019] The corresponding labels in the attached diagram are as follows: 1. Emergency call device body; 2. Detection box; 3. Display screen; 4. Communication button; 5. Detection module; 501. Electrochemical sensor assembly; 502. MEMS sensor; 6. Audio-visual module; 601. Direction indicator light; 602. Buzzer; 7. Communication and positioning module; 701. Communication module; 702. Positioning module; 703. Bluetooth module; 704. Antenna; 8. Auxiliary module; 801. Temperature and humidity sensor; 802. Barometer; 9. Control chip; 10. Battery compartment; 11. Emergency call button; 12. Elastic latch; 13. Elastic rope; 14. Connecting block; 15. Back clip; 16. Lighting flashlight; 17. Pressure plate; 18. Locking block; 19. Elastic sheet; 20. Locking plate; 21. Connecting slot. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0021] like Figures 1-6As shown: A firefighter distress call device with gas detection function includes a main body 1, a detection box 2 and a display screen 3 respectively. The detection box 2 contains a detection module 5, which includes an electrochemical sensor assembly 501 and a MEMS sensor 502. It uses a combination of electrochemical and MEMS methods to detect the on-site environment, which can cover more toxic and combustible gases and has a faster response speed. A battery compartment 10 is installed at the bottom of the main body 1 to power the entire distress call device and ensure its normal operation. The main body 1 contains a control chip 9, an audio-visual module 6 and a communication and positioning module 7. The audio-visual module 6, the communication and positioning module 7, the detection module 5 and the display screen 3 all interact with the control chip 9 and control their corresponding actions through the control chip 9. The control chip 9 processes the information collected by each module and then feeds it back to each module and the display screen 3 to control the response of each module. The sound and light module 6 includes a directional indicator light 601 and a buzzer 602; the communication and positioning module 7 includes a communication module 701, a positioning module 702, and a Bluetooth module 703. The positioning module 702 and Bluetooth module 703 adopt UWB combined with BLE information interaction technology. UWB technology is used to accurately locate firefighters, and BLE technology is used to transmit information, balancing high accuracy and low power consumption. Furthermore, BLE technology can support MESH networking. In areas with poor or no signal, firefighters can form a self-organizing network through the distress call device they wear for communication and positioning. At the same time, the Bluetooth module 703 can also connect with other smart devices worn by firefighters. The communication module 701 protrudes from the top of the distress call device body 1 and is located on its surface. The sides of the distress call device body 1 are respectively equipped with a communication button 4 and a distress call button 11. Pressing the communication button 4 allows communication with teammates and the command center through the communication module 701, while pressing the distress call button 11 enables one-click alarm and distress call for a rapid response.

[0022] The specific implementation process is as follows:

[0023] In use, the distress call device is attached to the firefighter's clothing via a mounting method. When the firefighter enters the fire scene or other rescue location, the MEMS sensor 502 in the detection box 2 continuously and rapidly detects combustible gases in real time, quickly responding to explosion risks and ensuring that the concentration of combustible gases is within safe limits. After entering the rescue location, the electrochemical sensor component 501 continuously detects toxic gases, ensuring low-concentration warnings of toxic gases. The detection information is processed by the control chip 9 and displayed in real time on the display screen 3, allowing firefighters to understand the general situation on site. The information is also transmitted to the command center via the communication and positioning module 7 for information synchronization. When the firefighter is wearing a smartwatch, the Bluetooth module 703 pairs with the smartwatch to obtain vital sign data such as heart rate and blood oxygen collected by the smartwatch and transmits it to the command center, allowing them to understand the firefighter's real-time vital sign status. If no abnormal information is obtained from the firefighter or no toxic combustible gas is detected during the firefighting operation, the control chip 9... The directional indicator 601 in the sound and light module 6 is kept constantly green. When abnormal firefighter characteristics are detected or a low concentration of toxic flammable gas is detected, the control chip 9 processes the information and controls the directional indicator 601 in the sound and light module 6 to flash yellow. At the same time, the buzzer 602 emits a short, low-decibel beep to warn the firefighter. When abnormal firefighter vital signs exceed the safety threshold or toxic flammable gas exceeds the safety threshold, the control chip 9 controls the sound and light module 6 to switch to distress call mode. That is, the directional indicator 601 flashes red, the buzzer 602 emits a continuous high-decibel beep, and the control chip 9 controls the positioning module 702 and Bluetooth module 703 on the communication and positioning module 7 to output high power. The firefighter is accurately located using UWB technology and the information is transmitted using BLE technology to accurately locate the firefighter's position for subsequent rescue. When a firefighter is in danger, he can also press the distress call button 11 to switch the distress call device to alarm distress call mode for a rapid response and to buy more time.

[0024] In this embodiment, a locking assembly is provided between the battery compartment 10 and the emergency call device body 1. The locking assembly includes a locking plate 20 and locking blocks 18. Two sets of locking blocks 18 are arranged opposite each other and pass through the cavity inside the emergency call device body 1. The tops of the two sets of locking blocks 18 protrude from the emergency call device body 1 and connect to the pressure plate 17. An elastic piece 19 is provided on the bottom surface of the locking block 18. The end of the locking block 18 engages with the locking plate 20, which is mounted on the battery compartment 10. The battery compartment 10 adopts a large-capacity design to provide longer battery life. After the battery compartment 10 is inserted into the emergency call device body 1, the locking plate 20 and the locking blocks 18 engage. The elastic piece 19 keeps the locking blocks 18 pressed against the locking plate 20, thereby locking the battery compartment 10. Simply pressing the pressure plate 17 separates the locking blocks 18 from the locking plate 20, thus releasing the lock on the battery compartment 10 and allowing firefighters to quickly replace the battery.

[0025] In this embodiment, an elastic locking pin 12 is installed in the through hole of the distress call button 11. The elastic locking pin 12 contacts the surface of the distress call device body 1, and one end of the elastic locking pin 12 is connected to one end of the elastic rope 13, while the other end of the elastic rope 13 is connected to the distress call device body 1. The distress call button 11 is fixed by the elastic locking pin 12 to prevent firefighters from accidentally activating it during rescue operations. When calling for help, the distress call button 11 can be pressed by pulling out the elastic locking pin 12. At the same time, the elastic locking pin 12 is connected to the distress call device body 1 through the elastic rope 13, which can prevent it from being lost and facilitate subsequent reset and reuse.

[0026] In this embodiment, the communication positioning module 7 is equipped with a retractable antenna 704, which is made of ceramic. In areas with particularly poor signal, extending the antenna 704 outside the distress call device body 1 can enhance the communication signal, and the ceramic material of the antenna 704 can withstand high temperatures and avoid damage.

[0027] In this embodiment, the main body 1 of the distress call device has a built-in auxiliary module 8. The auxiliary module 8 interacts with the control chip 9. The auxiliary module 8 includes a temperature and humidity sensor 801 and a barometer 802. The temperature and humidity sensor 801 and the barometer 802 can monitor the environmental conditions of the rescue site in real time, making it easier for firefighters to understand the situation on site. At the same time, the barometer 802 can accurately detect the air pressure at the firefighter's height. After the control chip 9 performs height conversion processing, it can determine the firefighter's height. When a short-term rapid change in air pressure is detected, the control chip 9 determines whether the firefighter has fallen from a height if the change value exceeds the safety threshold, sends information feedback, controls the distress call device to switch to alarm and distress call mode, and transmits the information to the command center for subsequent rescue.

[0028] In this embodiment, a flashlight 16 is installed inside the main body 1 of the distress call device, and the end of the flashlight 16 is magnetically fixed to the main body 1 of the distress call device. The flashlight 16 has a built-in power supply, which can provide auxiliary lighting. The magnetic fixation allows firefighters to quickly remove the flashlight 16 from the main body 1 of the distress call device, providing emergency lighting when the headlamp is damaged or unusable.

[0029] In this embodiment, a connecting groove 21 is provided on the back of the distress call device body 1, and a connecting block 14 is engaged in the connecting groove 21. The connecting block 14 is mounted on a back clip 15, which is located on the back of the distress call device body 1. By engaging the connecting block 14 with the connecting groove 21, the back clip 15 can be quickly connected to the distress call device body 1, making it convenient for firefighters to attach.

[0030] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A firefighter distress call device with gas detection function, characterized in that: The device includes a distress call body (1), on which a detection box (2) and a display screen (3) are respectively provided. A detection module (5) is provided inside the detection box (2), and the detection module (5) includes an electrochemical sensor assembly (501) and a MEMS sensor (502). A battery compartment (10) is provided at the bottom of the distress call body (1). A control chip (9), an acoustic-optical module (6), and a communication and positioning module (7) are respectively provided inside the distress call body (1). Group (5) and the display screen (3) interact with the control chip (9) and control their corresponding actions through the control chip (9); the sound and light module (6) includes a directional indicator (601) and a buzzer (602); the communication and positioning module (7) includes a communication module (701), a positioning module (702) and a Bluetooth module (703), the communication module (701) protrudes from the top of the distress caller body (1) and is located on its surface; the distress caller body (1) is provided with a communication button (4) and a distress call button (11) on its side.

2. The fireman's distress indicator with gas detection function according to claim 1, characterized in that: A locking assembly is provided between the battery compartment (10) and the emergency call body (1). The locking assembly includes a locking plate (20) and a locking block (18). Two sets of locking blocks (18) are arranged opposite each other and pass through the cavity inside the emergency call body (1). The tops of the two sets of locking blocks (18) pass through the emergency call body (1) and are connected to the pressure plate (17). An elastic sheet (19) is provided on the bottom surface of the locking block (18). The end of the locking block (18) engages with the locking plate (20). The locking plate (20) is set on the battery compartment (10).

3. The fireman's distress indicator with gas detection function according to claim 1, characterized in that: An elastic locking pin (12) is installed in the through hole of the distress button (11). The elastic locking pin (12) is in contact with the surface of the distress call body (1). The end of the elastic locking pin (12) is connected to one end of the elastic rope (13), and the other end of the elastic rope (13) is connected to the distress call body (1).

4. The fireman's distress indicator with gas detection function according to claim 1, characterized in that: The communication positioning module (7) is equipped with a retractable antenna (704), which is made of ceramic material.

5. The fireman's distress indicator with gas detection function according to claim 1, characterized in that: The main body (1) of the distress call device has a built-in auxiliary module (8), which interacts with the control chip (9). The auxiliary module (8) includes a temperature and humidity sensor (801) and a barometer (802).

6. The fireman's distress indicator with gas detection function according to claim 1, characterized in that: A flashlight (16) is installed inside the main body (1) of the distress call device, and the end of the flashlight (16) is magnetically fixed to the main body (1) of the distress call device.

7. The fireman's distress indicator with gas detection function according to claim 1, characterized in that: The back of the distress call device body (1) is provided with a connecting groove (21), and a connecting block (14) is inserted in the connecting groove (21). The connecting block (14) is set on the back clip (15), and the back clip (15) is located on the back of the distress call device body (1).

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