Fireman's distress indicator with falling water alarm

Abstract

The utility model belongs to fire-fighting equipment technical field discloses a kind of fireman distress call device with water falling alarm function, a kind of fireman distress call device with water falling alarm function, including shell and shell cover, circuit board is arranged in shell, chip, water contact switch, water pressure sensor module, positioning module, communication module and power module are integrated on circuit board, positioning module includes Beidou positioning module and underwater ultrasonic beacon module, water contact switch is arranged in the through slot on shell, multiple sets of contact points are arranged in water contact switch, cover plate is arranged outside water contact switch, multiple sets of water inlet hole and inclined groove are formed in cover plate;Water pressure sensor module one end is arranged in the through hole on shell.In the water of fireman, after water enters water contact switch, time exceeds 5 seconds, chip controls distress call device alarm, the position information of the fireman falling into water is collected by Beidou positioning module and underwater ultrasonic beacon module, is transmitted to command post by communication module, to facilitate subsequent rescue.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a firefighter's distress call device with a water inrush alarm 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. In water rescue operations such as inland river and lake vessel rescue, island distress rescue, and flood disasters, firefighters may fall into the water and encounter danger. While the distress calls currently used by firefighters have a certain degree of waterproofing, they require manual operation to activate the alarm after a firefighter falls into the water, resulting in slow response. Furthermore, the distress calls are only simple sound and light alarms, and the sound and light propagation is poor in water due to the influence of the water body, making it difficult to locate the firefighter and delaying nearby firefighters from providing assistance. Therefore, there is an urgent need for a firefighter distress call with a water-fall alarm function to solve these problems. Utility Model Content

[0003] The present invention aims to provide a firefighter distress call device with a water-fall alarm function, in order to solve the problems of current distress call devices not having automatic water-fall alarm function and poor positioning effect.

[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's distress call device with a water-fall alarm function, comprising a shell and a cover, which are fitted together as a whole. A circuit board is provided inside the shell, and the circuit board integrates a chip, a water-touch switch, a water pressure sensor module, a positioning module, a communication module, and a power supply module. Each module interacts with the chip. The positioning module includes a Beidou positioning module and an underwater ultrasonic beacon module. The water-touch switch is connected in series between the positioning module and the chip circuit. The water-touch switch is installed in a through groove, which is located on the shell. The water-touch switch has multiple sets of contacts, and the contacts are disconnected. A cover plate is provided outside the water-touch switch, and multiple sets of water inlets and inclined grooves are provided on the cover plate. The inclined grooves have the same inclination as the bottom edge of the water-touch switch. One end of the water pressure sensor module is installed in a through hole, which is located on the shell and on one side of the through groove. The water pressure sensor module and the through hole, as well as the water-touch switch and the through groove, are sealed with epoxy resin.

[0006] Preferably, the communication module includes a communication module and a built-in antenna.

[0007] Preferably, the circuit board integrates a lighting module, with the lamp head portion of the lighting module extending outside the housing.

[0008] Preferably, a charging port is provided on the side of the housing, which is electrically connected to the power module, and a rubber plug is provided outside the charging port; a sealing ring is provided between the housing and the cover.

[0009] Preferably, the housing is provided with equipment markings.

[0010] Preferably, a rope buckle is provided on the top surface of the housing.

[0011] The principle and beneficial effects of the basic technical solution are as follows: In the initial state, the distress caller is in standby mode. When a firefighter falls into the water, water enters the water-touch switch through the inlet, and the contacts in the water-touch switch are connected by water, thereby connecting the positioning module circuit and feeding the signal back to the chip. When the connection time exceeds 5 seconds, the chip controls the distress caller to switch to distress call mode. The Beidou positioning module and the underwater ultrasonic beacon module in the positioning module collect the real-time location information of the firefighter who has fallen into the water. The dual-mode positioning improves the positioning accuracy, and the trajectory information is wirelessly transmitted to the command center through the communication module. There is no need for the firefighter to manually alarm, and the location of the firefighter is improved, which facilitates subsequent rescue. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a firefighter's distress call device with a water-fall alarm function according to this utility model;

[0013] Figure 2 This is a schematic diagram of the assembly structure of a firefighter's distress call device with a water-falling alarm function according to this utility model;

[0014] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0015] The corresponding labels in the attached diagram are named as follows: 1. Housing; 2. Housing cover; 201. Sealing ring; 3. Rope buckle; 4. Circuit board; 5. Chip; 6. Water contact switch; 601. Contact; 602. Cover plate; 603. Water inlet; 604. Sloping groove; 7. Water pressure sensor module; 8. Positioning module; 801. Beidou positioning module; 802. Underwater ultrasonic beacon module; 9. Communication module; 901. Communication module; 902. Built-in antenna; 10. Power module; 11. Lighting module; 12. Through groove; 13. Through hole; 14. Equipment identification; 15. Charging port; 16. Rubber plug. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0017] like Figures 1-3 As shown: A firefighter's distress call device with a water-fall alarm function includes a housing 1 and a cover 2, which are fitted together as a whole. A circuit board 4 is installed inside the housing 1. The circuit board 4 integrates a chip 5, a water-touch switch 6, a water pressure sensor module 7, a positioning module 8, a communication module 9, and a power supply module 10. Each module interacts with the chip 5, and the power supply module 10 supplies power to the entire device. The positioning module 8 includes a Beidou positioning module 801 and an underwater ultrasonic beacon module 802. The water-touch switch 6 is connected in series between the positioning module 8 and the circuit of the chip 5. The water-touch switch 6 passes through a through groove 12, which is located on the housing 1. The water-touch switch 6 has multiple sets of contacts 601, which are open circuits. A cover plate 602 is installed outside the water-touch switch 6. The cover plate 602 has multiple sets of water inlets 603 and inclined grooves 604. The inclined grooves 604 have the same inclination as the bottom edge of the water-touch switch 6. The cover plate 602 prevents debris from entering the water-touch switch 6 and avoids damage from external forces. When a firefighter is not in danger of falling into the water, but a wave hits the firefighter and enters the water-touch switch 6, the water will quickly drain out from the inclined groove 604 along the inclined bottom surface of the water-touch switch 6. At the same time, the setting of multiple sets of contacts 601 prevents the circuit from being accidentally connected, reduces power consumption, and improves the accuracy of the distress call. One end of the water pressure sensor module 7 is inserted into the through hole 13. The water pressure sensor module 7 can monitor the water pressure to determine the depth of falling into the water. The through hole 13 is opened on the housing 1 and is located on one side of the through groove 12. The water pressure sensor module 7 and the through hole 13, as well as the water-touch switch 6 and the through groove 12, are sealed with epoxy resin to effectively prevent water from penetrating into the distress call. Furthermore, the water pressure sensor module 7 is located on one side of the water-touch switch 6, so that when the water-touch switch 6 is turned on, the water pressure sensor module 7 is always in the water to monitor the water pressure.

[0018] The specific implementation process is as follows:

[0019] Before conducting a rescue operation, firefighters wear distress calls on their life jackets or work clothes, positioning the caller near their shoulders on their chest. During the water rescue, if water splashes onto the firefighter and enters the water-touch switch 6 through the inlet 603, the water will flow out through the inclined channel 604, preventing accumulation inside the switch and potential false alarm activation. When a firefighter falls into the water, water will quickly enter and fill the switch 6, activating all contacts 601, thus connecting the circuit and transmitting the signal. The signal is fed back to chip 5. If the firefighter fails to escape on their own and remains in the water 5 seconds after the signal is connected, chip 5 controls the distress call to switch to alarm mode, eliminating the need for the firefighter to manually sound the alarm. If the firefighter floats normally in the water, the top of the distress call will float to the surface with the firefighter because it is located on their chest near their shoulder. The water pressure detected by water pressure sensor module 7 will be relatively low. At this time, the Beidou positioning module 801 in positioning module 8 collects the firefighter's real-time location information, which is then processed by chip 5 and transmitted to communication module 9. The wireless transmission is sent to the command center's monitoring terminal, where the location and movement trajectory of the firefighter who fell into the water are displayed in real time to facilitate subsequent rescue efforts. Simultaneously, communication module 9 transmits information about the person wearing the distress call device and the device itself to the command center, allowing the commander to better understand the situation on-site. If a firefighter falls into the water and, due to injury or other external factors, is unable to maintain a normal buoyancy, they will repeatedly sink and float, causing the distress call device to be completely submerged. When the water pressure sensor module 7 detects an increase in water pressure, it sends a signal back to the internal... Chip 5 converts the signal and determines the water depth by water pressure. When the water pressure exceeds 1.96 kPa, the distress call is located 0.2 meters below the water surface. At this time, the frequency of the wireless signal transmitted by the Beidou positioning module 801 is affected by the water body, resulting in poor propagation efficiency. Chip 5 controls the underwater ultrasonic beacon module 802 to start, emitting ultrasonic waves, which are received by the monitoring terminal to continuously locate the firefighter and avoid signal loss. The two positioning modes can be used alternately to continuously output location information and ensure positioning accuracy.

[0020] In this embodiment, the communication module 9 includes a communication module 901 and a built-in antenna 902. The communication module 901 integrates a LoRa wireless transmission module, a 4G-5G communication module, a satellite communication module, and a ship automatic identification system module. By combining multiple communication technologies, the stability of communication is improved, avoiding signal disconnection due to the failure of a single communication module in extreme situations, thus effectively improving the reliability of the distress call device. The built-in antenna 902 adopts a flexible PCB antenna, which has the advantages of small size and multi-frequency transmission, and can better transmit wireless signals and improve positioning accuracy.

[0021] In this embodiment, a lighting module 11 is integrated on the circuit board 4, and the lamp head of the lighting module 11 extends through the housing 1. When the distress call alarm is triggered, the chip 5 controls the lighting module 11 to start, emitting high-frequency infrared light. The high-frequency infrared light enables rescuers to locate the firefighter who has fallen into the water more quickly when using drones for search.

[0022] In this embodiment, a charging port 15 is provided on the side of the housing 1. The charging port 15 is electrically connected to the power module 10, and a rubber plug 16 is provided outside the charging port 15. A sealing ring 201 is provided between the housing 1 and the cover 2. The device can be charged through the charging port 15. The rubber plug 16 seals the charging port 15 to prevent foreign objects or water from entering the charging port 15 and causing damage. Two sets of sealing rings 201 are provided for double sealing, which effectively improves the sealing performance of the device.

[0023] In this embodiment, an equipment identification mark 14 is provided on the housing 1. The equipment identification mark 14 has a QR code, which firefighters can scan to bind personnel and equipment information, facilitating command center management.

[0024] In this embodiment, a rope buckle 3 is provided on the top surface of the housing 1. The distress call device can be connected to the firefighter via a connecting rope through the rope buckle 3, providing double security and preventing the distress call device from accidentally falling.

[0025] 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 a water-fall alarm function, characterized in that: The system includes a housing (1) and a cover (2), which are fitted together as a whole. A circuit board (4) is installed inside the housing (1). The circuit board (4) integrates a chip (5), a water-touch switch (6), a water pressure sensor module (7), a positioning module (8), a communication module (9), and a power supply module (10). Each module interacts with the chip (5). The positioning module (8) includes a Beidou positioning module (801) and an underwater ultrasonic beacon module (802). The water-touch switch (6) is connected in series between the positioning module (8) and the circuit of the chip (5). The water pressure sensor module (7) is installed in the through groove (12), which is opened on the housing (1). The water contact switch (6) is provided with multiple sets of contacts (601), and each set of contacts (601) is disconnected. The water contact switch (6) is provided with a cover plate (602), which is provided with multiple sets of water inlet holes (603) and inclined grooves (604). The inclined grooves (604) are inclined at the same angle as the bottom edge of the water contact switch (6). One end of the water pressure sensor module (7) is installed in the through hole (13), which is opened on the housing (1) and located on one side of the through groove (12).

2. A firefighter's distress call device with a water-fall alarm function according to claim 1, characterized in that: The communication module (9) includes a communication module (901) and a built-in antenna (902).

3. A firefighter's distress call device with a water-fall alarm function according to claim 1, characterized in that: The circuit board (4) integrates a lighting module (11), and the lamp head of the lighting module (11) passes through the outer shell (1).

4. A firefighter distress call device with a water-fall alarm function according to claim 1, characterized in that: A charging port (15) is provided on the side of the housing (1), the charging port (15) is electrically connected to the power module (10), and a rubber plug (16) is provided outside the charging port (15); a sealing ring (201) is provided between the housing (1) and the cover (2).

5. A firefighter's distress call device with a water-fall alarm function according to claim 1, characterized in that: The housing (1) is provided with an equipment identifier (14).

6. A firefighter's distress call device with a water-fall alarm function according to claim 1, characterized in that: The top surface of the housing (1) is provided with a rope buckle (3).

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