Fireman's distress device with positioning and rescue function

Abstract

The utility model belongs to fire fighting equipment technical field discloses a fireman distress device with positioning search and rescue function, including casing and shell cover, be provided with circuit board and mounting bracket in the casing, integrated have monitoring module, audible -visual module, positioning module, communication module, control chip and power module on the circuit board, and monitoring module includes displacement sensor and air pressure sensor, be provided with moving plate on the mounting bracket, be provided with antenna module on the moving plate, the one end of fixed block on the mounting bracket is provided with electromagnet, the other end is provided with inclined surface piece and positioning spring, and the inclined surface piece is contacted with the moving plate top surface, and the stretching spring of moving plate top surface is connected with the mounting bracket. Antenna module is located inside the distress device, can avoid being broken; when alarming, electromagnet is electrified and attracts inclined surface piece to move, and stretching spring makes antenna module stretch out the casing outside, is convenient for receiving and dispatching signal; audible -visual module alarm, positioning through positioning module, cooperates air pressure sensor and monitors floor height, accurately positions fireman position.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a firefighter distress call device with positioning and search and rescue 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 rescue operations and are mandatory. All firefighters must be equipped with appropriate distress calls depending on the type of rescue operation to fully ensure their safety. For complex indoor rescue operations in environments such as buildings, shopping malls, and residential buildings, accurate location of firefighters is crucial for ensuring their safety. However, current distress calls typically use single-mode positioning, which can easily lead to loss of location due to environmental interference. Furthermore, to achieve better signal transmission and reception, the antennas of current distress calls are usually located externally, making them highly susceptible to damage during rescue operations, thus affecting positioning accuracy. Therefore, a new type of firefighter distress call with positioning and search capabilities is urgently needed to address these issues. Utility Model Content

[0003] The present invention aims to provide a firefighter distress call device with positioning and search and rescue functions to solve the problems of easy damage to the external antenna and poor positioning accuracy of the current distress call devices.

[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 positioning and search and rescue function, including a shell and a cover, the cover being disposed on the shell, and a circuit board and a mounting bracket being disposed inside the shell. The circuit board integrates a monitoring module, an audio-visual module, a positioning module, a communication module, a control chip, and a power module. The monitoring module includes a displacement sensor and a barometric pressure sensor, and the positioning module includes a UWB positioning module and an IMU positioning module. A movable plate is disposed on the mounting bracket, and an antenna module is disposed on the movable plate. The antenna module is electrically connected to the communication module. The antenna module includes a MIMO-UWB antenna and a Wi-Fi antenna. Limiting blocks are disposed on both sides of the movable plate, and the limiting blocks are slidably disposed in limiting grooves. The limiting grooves are opened on the mounting bracket. A fixing block is disposed on the mounting bracket. An electromagnet is disposed at one end of the fixing block, and a bevel block and a positioning spring are respectively passed through the other end of the fixing block. The positioning spring is connected to the bevel block, and the other end of the bevel block passes through the fixing block and contacts the top surface of the movable plate. A tension spring is disposed on the top surface of the movable plate, and the top end of the tension spring is connected to the mounting bracket.

[0006] Preferably, a protective cover is provided outside the antenna module, with the top of the protective cover extending out of the housing.

[0007] Preferably, the sound and light module includes an indicator light and a buzzer, with the indicator light extending through the surface of the housing and the buzzer located on the side of the housing.

[0008] Preferably, the housing is provided with a back clip and a friction pad, and on one side of the back clip and friction pad, the back clip is provided with multiple sets of helical teeth.

[0009] Preferably, a display screen is provided on the housing, and the display screen is electrically connected to the control chip.

[0010] The principle and beneficial effects of the basic technical solution are as follows: The initial state of the distress call device is a retracted state, meaning the antenna module is located inside the device, which does not obstruct the firefighter's movement and prevents it from being broken. When the displacement sensor detects that the firefighter has not moved and exceeds the safety threshold, the control chip activates the distress call device to sound an alarm. At this time, the electromagnet is energized, retracting the inclined block into the fixed block and releasing the lock on the moving plate. Under the action of the tension spring, the antenna module pops out of the housing to facilitate signal transmission and reception. Simultaneously, the sound and light module sounds an alarm, and the UWB positioning module and IMU positioning module in the positioning module locate the firefighter. In conjunction with the air pressure sensor, the current floor height of the firefighter is monitored, thereby accurately locating the position of the firefighter in distress. The collected position information is then wirelessly transmitted to the command center through the communication module and antenna module, facilitating the command center to arrange for the nearest firefighter to assist the firefighter in distress. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a firefighter distress call device with positioning and search and rescue function according to the present invention;

[0012] Figure 2 This is a cross-sectional structural diagram of a firefighter distress call device with positioning and search and rescue function according to the present invention;

[0013] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0014] Figure 4 This is a schematic diagram of the mounting frame and its components in a firefighter distress call device with positioning and search and rescue function according to this utility model;

[0015] Figure 5 This is a schematic diagram of the extended antenna module in a firefighter distress call device with positioning and search and rescue function according to this utility model;

[0016] Figure 6 This is a schematic diagram of the back structure of a firefighter distress call device with positioning and search and rescue function according to the present invention;

[0017] The corresponding labels in the attached diagram are named as follows: 1. Housing; 2. Housing cover; 3. Back clip; 301. Helical tooth; 302. Friction pad; 4. Circuit board; 5. Monitoring module; 501. Displacement sensor; 502. Barometric pressure sensor; 6. Audio-visual module; 601. Indicator light; 602. Buzzer; 7. Antenna module; 701. MIMO-UWB antenna; 702. Wi-Fi antenna; 703. Protective cover; 8. Mounting bracket; 801. Moving plate; 802. Limiting block; 803. Limiting groove; 804. Fixing block; 805. Inclined block; 806. Positioning spring; 807. Electromagnet; 808. Tension spring; 9. Positioning module; 901. UWB positioning module; 902. IMU positioning module; 10. Communication module; 11. Control chip; 12. Power module; 13. Display screen. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0019] like Figures 1-6As shown: A firefighter distress call device with positioning and search and rescue function includes a housing 1 and a cover 2. The cover 2 is mounted on the housing 1. A circuit board 4 and a mounting bracket 8 are respectively installed inside the housing 1. The circuit board 4 integrates a monitoring module 5, an audio-visual module 6, a positioning module 9, a communication module 10, a control chip 11, and a power module 12. Each module interacts with the control chip 11 and can be controlled by the control chip 11 to perform its corresponding actions. The communication module 10 uses a 4G-5G public network and a LoRa module dedicated network for full-duplex communication to improve communication stability and ensure signal transmission. The monitoring module... Group 5 includes a displacement sensor 501 and a barometric pressure sensor 502. Positioning module 9 includes a UWB positioning module 901 and an IMU positioning module 902. The UWB positioning module 901 uses ultra-wideband positioning technology, featuring high positioning accuracy and strong anti-interference capabilities, suitable for precise positioning within buildings. The IMU positioning module 902 uses inertial navigation technology, does not rely on external signals, and can track movement trajectories, easily compensating for positioning blind spots caused by signal loss from the UWB positioning module 901. A movable plate 801 is mounted on the mounting bracket 8, and an antenna module 7 is mounted on the movable plate 801. The antenna module 7 is connected to the communication... Module 10 is electrically connected. Antenna module 7 includes a MIMO-UWB antenna 701 and a Wi-Fi antenna 702. The MIMO-UWB antenna 701 has strong anti-interference capabilities and can better transmit and receive signals, making it suitable for precise positioning within buildings. The Wi-Fi antenna 702 is used for transmitting and receiving signals such as equipment and personnel information, reducing the burden on the MIMO-UWB antenna 701 and allowing it to better transmit and receive position signals, thus improving positioning accuracy. Limiting blocks 802 are provided on both sides of the moving plate 801. The limiting blocks 802 are slidably disposed in limiting grooves 803, which are opened in the safety... On the mounting bracket 8, a fixing block 804 is provided. An electromagnet 807 is provided at one end of the fixing block 804. The electromagnet 807 is electrically connected to the circuit board 4 and controlled by the control chip 11. An inclined block 805 and a positioning spring 806 are respectively passed through the other end of the fixing block 804. The positioning spring 806 is connected to the inclined block 805. The inclined block 805 is made of metal and can be attracted by a magnet. The other end of the inclined block 805 passes through the fixing block 804 and contacts the top surface of the moving plate 801. A tension spring 808 is provided on the top surface of the moving plate 801. The top end of the tension spring 808 is connected to the mounting bracket 8.

[0020] The specific implementation process is as follows:

[0021] When firefighters enter an indoor rescue scene wearing distress calls, the antenna module 7 on the distress call is located inside the housing 1, in a retracted state. This minimizes the protrusion of the distress call and effectively prevents firefighters from accidentally breaking the external antenna during rescue operations due to their own movements or external forces, thus significantly improving the reliability of the distress call. When firefighters move within the building, the IMU positioning module 902 in the positioning module 9 records their movement trajectory in real time. In case of an emergency, the displacement sensor 501 in the monitoring module 5 detects that the firefighter has not moved. After 30 seconds, the sensor sends the information to the control chip 11, which then controls the system. When the distress caller switches to pre-alarm mode, the sound and light module 6 emits a high-frequency flashing light and a sound and light alarm with a decibel level of no less than 80dB. Simultaneously, the control chip 11 energizes the electromagnet 807, attracting the inclined block 805 and causing it to retract into the fixed block 804, thus releasing the lock on the moving plate 801. After unlocking, the moving plate 801, under the action of the tension spring 808, moves the antenna module 7 upwards, extending it out of the housing 1. This automatic pop-out design protects the antenna from accidental damage and ensures efficient signal transmission. After the antenna module 7 pops out, the electromagnet 807 is de-energized and loses its magnetism, preventing signal interference and reducing energy loss. Under the action of the positioning spring 806, the inclined block 805 extends out of the fixed block 804 again, so that the moving plate 801 can be fixed after resetting. At the same time, the UWB positioning module 901 collects the location information of the firefighter in distress inside the building, and then monitors the air pressure information at the location of the firefighter in distress through the air pressure sensor 502. The information is fed back to the control chip 11. The control chip 11 calculates the height of the firefighter based on the air pressure, thereby determining the floor. Then, the location information collected by the UWB positioning module 901 is combined with the motion trajectory information collected by the IMU positioning module 902, and a dual-mode complementary positioning method is used for positioning, thereby accurately determining the location of the firefighter in distress. The location of the firefighters is then transmitted wirelessly via the communication module 10 and the antenna module 7. The MIMO-UWB antenna 701 in the antenna module 7 is only responsible for transmitting and receiving location signals to ensure the transmission efficiency of location information, while the Wi-Fi antenna 702 is used to transmit auxiliary information such as the location of the firefighters and equipment, so that the command center can understand more about the situation. The pre-alarm time of the distress call is 15 seconds. If the firefighter has not escaped on his own during this period and is still inactive, the control chip 11 controls the distress call to switch to automatic alarm mode. While continuing to send location information, it controls the sound and light module 6 to emit an alarm sound of no less than 100dB so that other firefighters can better search for the firefighter in distress.

[0022] In this embodiment, a protective cover 703 is provided outside the antenna module 7, with the top of the protective cover 703 protruding outside the housing 1. The protective cover 703 can provide auxiliary protection for the antenna module 7, preventing it from getting dusty or wet and affecting its operation.

[0023] In this embodiment, the audio-visual module 6 includes an indicator light 601 and a buzzer 602. The indicator light 601 protrudes from the surface of the housing 1, and the buzzer 602 is located on the side of the housing 1. In the normal standby mode of the emergency call device, the indicator light 601 is a solid green light, allowing nearby firefighters to determine each other's location and status. In the pre-alarm and automatic alarm states, the indicator light 601 flashes red at a high frequency to better transmit location information. If a firefighter is in a prone position and presses the indicator light 601 to the ground, preventing proper light signal transmission, the buzzer 602 located on the side can still effectively transmit the sound signal without being blocked by the ground, reducing the impact of noise.

[0024] In this embodiment, the housing 1 is provided with a back clip 3 and a friction pad 302. On one side of the back clip 3 and the friction pad 302, the back clip 3 is provided with multiple sets of helical teeth 301. The back clip 3 can quickly attach the distress call device to the outside of the firefighter's combat uniform. The helical teeth 301 and the friction pad 302 increase friction, allowing the back clip 3 to more securely fix the distress call device to the firefighter's body and prevent it from falling off.

[0025] In this embodiment, a display screen 13 is provided on the housing 1, and the display screen 13 is electrically connected to the control chip 11. The display screen 13 can display the firefighter's location and equipment information, so that the firefighter can understand his / her location and the use of the distress call device.

[0026] 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 positioning and search and rescue function, characterized in that: The system includes a housing (1) and a cover (2), with the cover (2) disposed on the housing (1). A circuit board (4) and a mounting bracket (8) are respectively disposed inside the housing (1). The circuit board (4) integrates a monitoring module (5), an acoustic-optical module (6), a positioning module (9), a communication module (10), a control chip (11), and a power module (12). The monitoring module (5) includes a displacement sensor (501) and a pressure sensor (502). The positioning module (9) includes a UWB positioning module (901) and an IMU positioning module (902). A movable plate (801) is disposed on the mounting bracket (8), and an antenna module (7) is disposed on the movable plate (801). The antenna module (7) is electrically connected to the communication module (10), and the antenna module (7) includes a MIMO-UWB antenna (701). The movable plate (801) is equipped with a Wi-Fi antenna (702). Limiting blocks (802) are provided on both sides of the movable plate (801). The limiting blocks (802) are slidably disposed in the limiting grooves (803). The limiting grooves (803) are opened on the mounting frame (8). A fixing block (804) is provided on the mounting frame (8). An electromagnet (807) is provided at one end of the fixing block (804). An inclined block (805) and a positioning spring (806) are respectively passed through the other end of the fixing block (804). The positioning spring (806) is connected to the inclined block (805). The other end of the inclined block (805) passes through the fixing block (804) and contacts the top surface of the movable plate (801). A tension spring (808) is provided on the top surface of the movable plate (801). The top end of the tension spring (808) is connected to the mounting frame (8).

2. A firefighter distress call device with positioning and search and rescue function according to claim 1, characterized in that: The antenna module (7) is provided with a protective cover (703), and the top of the protective cover (703) extends out of the housing (1).

3. A firefighter distress call device with positioning and search and rescue function according to claim 1, characterized in that: The sound and light module (6) includes an indicator light (601) and a buzzer (602). The indicator light (601) extends through the surface of the housing (1), and the buzzer (602) is located on the side of the housing (1).

4. A firefighter distress call device with positioning and search and rescue function according to claim 1, characterized in that: The housing (1) is provided with a back clip (3) and a friction pad (302), the back clip (3) and the friction pad (302) are on the same side, and the back clip (3) is provided with multiple sets of helical teeth (301).

5. A firefighter distress call device with positioning and search and rescue function according to claim 1, characterized in that: The housing (1) is provided with a display screen (13), which is electrically connected to the control chip (11).

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