A heavy-duty drone for fire fighting and rescue

Abstract

The present invention relates to a heavy-duty unmanned aerial vehicle for fire fighting and rescue, belonging to the technical field of unmanned aerial vehicles. In order to solve the problem of difficult fire fighting tasks on high floors, the solution mainly includes: a cabin, inside which fire extinguishing substances and light gases are filled, and a plurality of nozzles are provided on the cabin, and the nozzles are configured to enable the cabin to release the fire extinguishing substances; a power system, including a motion system and a frame, the motion system is installed on the frame, and the unmanned aerial vehicle is fixedly connected to the cabin through the frame; a gas tank, provided inside the cabin, an electric valve is provided on the gas tank, and the electric valve is configured to enable the gas tank to release the light gases; a safety belt, fixed below the frame; a pressure sensor, used to detect the air pressure inside the cabin; and a controller, which is communicatively connected to the power system, the nozzles, the gas tank and the pressure sensor respectively.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles, and more particularly relates to a heavy-duty unmanned aerial vehicle for fire fighting and rescue. Background Art

[0002] Existing fire fighting and rescue equipment has many limitations when facing high-rise building fires and complex fire ground environments, such as difficult operation, low fire extinguishing efficiency, inability to conduct single-person rescue in a timely manner, etc. Therefore, there is an urgent need for a new type of equipment that can overcome these deficiencies and improve the efficiency and safety of fire fighting and rescue. Summary of the Invention

[0003] In view of the above analysis, in order to solve the above problems, an embodiment of the present invention provides a heavy-duty unmanned aerial vehicle for fire fighting and rescue, including:

[0004] In some embodiments, it further includes an equipment area: used to install various necessary equipment, including a high-definition camera, a thermal imaging camera, a gas sensor, a communication device, etc. These devices can monitor the fire ground situation in real time, detect the fire source and hot spots, and transmit the data back to the ground control center to help firefighters make quick and accurate decisions.

[0005] The safety belt is made of high-strength heat-resistant material and can withstand the high temperature and other harsh conditions in the fire ground. The sling device includes a quick-release buckle and an adjustment mechanism to ensure that the trapped person can be quickly and safely fixed and rescued. The safety belt is arranged below the power system through a fixing belt.

[0006] A cabin, the interior of the cabin is filled with fire extinguishing substances and light gas, and a plurality of nozzles are provided on the cabin, and the nozzles are configured to enable the cabin to release the fire extinguishing substances;

[0007] A power system, including a motion system and a frame, the motion system is installed on the frame, and the unmanned aerial vehicle is fixedly connected to the cabin through the frame;

[0008] An air tank, arranged inside the cabin, and an electric valve is provided on the air tank, and the electric valve is configured to enable the air tank to release the light gas;

[0009] A safety belt, fixed below the frame;

[0010] A pressure sensor, used to detect the air pressure inside the cabin; and

[0011] A controller, communicatively connected to the power system, the nozzles, the air tank, and the pressure sensor respectively;

[0012] The controller is configured to: when the nozzle is closed, if the air pressure value detected by the air pressure sensor is less than the first preset threshold, open the electric valve until the air pressure value is greater than or equal to the first preset threshold; when the nozzle is open, if the air pressure value detected by the air pressure sensor is less than the second preset threshold, open the electric valve so that the air pressure value is greater than the second preset threshold.

[0013] In some embodiments, the outer shape of the cabin is annular, and the power system is arranged at the center of the annulus.

[0014] In some embodiments, the interior of the cabin has a first cavity and a second cavity divided by an elastic diaphragm, and the first cavity is located outside or below the second cavity;

[0015] The first cavity is filled with the light gas and the fire extinguishing substance, and the second cavity is filled with the light gas.

[0016] In some embodiments, the gas tank is located in the second cavity, and the nozzle is connected to the first cavity.

[0017] In some embodiments, the motion system includes a plurality of rotors and a motion driving module connected to the rotors. The motion driving module is arranged at the bottom of the frame, and protection holes corresponding to the rotors are formed in the frame, and the rotors are located in the protection holes.

[0018] In some embodiments, a cooling system is provided inside the motion driving module. The cooling system includes a liquid carbon dioxide storage device and a temperature sensor. Both the liquid carbon dioxide storage device and the temperature sensor are located inside the motion driving module, and the liquid carbon dioxide storage device is configured to release liquid carbon dioxide when the temperature detected by the temperature sensor is greater than the set threshold.

[0019] In some embodiments, the fire extinguishing substance includes one of water, foam, halogenated fire extinguishing agent or dry powder fire extinguishing agent, and the light gas includes helium.

[0020] In some embodiments, the surfaces of the cabin and the motion system are both covered with high-temperature resistant materials.

[0021] In some embodiments, a camera is further included, and the camera is arranged at the lower end of the power system.

[0022] The above embodiments of the present invention have at least the following beneficial effects:

[0023] In an embodiment of the present invention, a cabin storing a light gas and a fire extinguishing substance is provided on a drone, and a gas cylinder is arranged in the cabin. On the one hand, when the drone reaches the fire point, the nozzle on the cabin can be opened to release the fire extinguishing substance for extinguishing the fire, and at the same time, the gas cylinder releases gas to provide the release pressure. On the other hand, the light gas in the cabin can provide upward buoyancy for the drone, increasing the load capacity of the drone. After the drone provided by the present invention drops the fire extinguishing substance, its load capacity is further improved, and at the same time, the trapped people in the fire can be rescued through the provided safety belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the embodiments of this specification. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A three-dimensional schematic diagram of a heavy-duty drone for fire fighting and rescue provided by an embodiment of the present invention;

[0026] Figure 2 A front view cross-sectional schematic diagram of an embodiment of the present invention;

[0027] Figure 3 A top view perspective view of an embodiment of the present invention.

[0028] Reference numerals:

[0029] 1, cabin; 11, nozzle; 12, first cavity; 13, second cavity; 2, power system; 21, motion system; 211, drive module; 212, rotor; 22, frame; 3, safety belt; 31, fixing belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. It should be noted that, without conflict, the embodiments and features in the embodiments in this disclosure can be combined, separated, interchanged, and / or rearranged. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0032] The present disclosure is described below through several specific embodiments. In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits the detailed description of known functions and known components. Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a heavy-load UAV for firefighting and rescue, comprising:

[0033] A cabin 1, wherein the cabin 1 is filled with fire extinguishing substances and light gas, and a plurality of nozzles 11 are provided on the cabin 1, wherein the nozzles 11 are configured to enable the cabin 1 to release the fire extinguishing substances;

[0034] The power system 2 includes a motion system 21 and a frame 22, wherein the motion system 21 is mounted on the frame 22, and the UAV is fixedly connected to the cabin 1 via the frame 22;

[0035] A gas tank (not shown), which is arranged inside the cabin 1, and on which an electric valve is arranged, wherein the electric valve is configured to enable the gas tank to release the light gas;

[0036] A safety belt 3 is fixed below the frame 22;

[0037] An air pressure sensor (not shown) for detecting the air pressure in the cabin 1; and

[0038] A controller, respectively connected to the power system 2, the nozzle 11, the gas tank and the air pressure sensor for communication;

[0039] The controller is configured to: when the nozzle 11 is closed, if the air pressure value detected by the air pressure sensor is less than the first preset threshold, open the electric valve until the air pressure value is greater than or equal to the first preset threshold; when the nozzle 11 is open, if the air pressure value detected by the air pressure sensor is less than the second preset threshold, open the electric valve so that the air pressure value is greater than the second preset threshold.

[0040] In an embodiment of the present invention, a cabin 1 storing a light gas and a fire extinguishing substance is provided on the unmanned aerial vehicle, and an air tank is arranged in the cabin 1. On the one hand, when the unmanned aerial vehicle reaches the fire point, the nozzle 11 on the cabin 1 can be opened to release the fire extinguishing substance for extinguishing the fire, and at the same time, the gas is released from the air tank to provide the release pressure. On the other hand, the light gas in the cabin 1 can provide the ascending buoyancy for the unmanned aerial vehicle, increasing the load capacity of the unmanned aerial vehicle. After the unmanned aerial vehicle provided by the present invention drops the fire extinguishing substance, its load capacity is further improved, and at the same time, the trapped people in the fire can be rescued through the provided safety belt 3.

[0041] Preferably, the control system includes a remote control function and a wireless communication module to realize the real-time data transmission between the unmanned aerial vehicle and the ground control center and the reception of control instructions. The control system can automatically avoid obstacles and fly stably in a complex environment, ensuring the smooth completion of the task through efficient obstacle detection and avoidance technology. The system also supports the autonomous flight mode of the unmanned aerial vehicle, and can perform automatic operations according to the preset path and task requirements.

[0042] In addition, by controlling the air pressure in the cabin 1 by the controller according to the air pressure value of the air pressure sensor, sufficient pressure can be provided for spraying and releasing the fire extinguishing substance. At the same time, it is avoided that the cabin 1 is deformed due to low pressure, resulting in structural damage.

[0043] In some embodiments, it further includes an equipment area: for installing various necessary equipment, including a high-definition camera, a thermal imaging camera, a gas sensor, a communication device, etc. These devices can monitor the fire situation in real time, detect the fire source and hot spots, and transmit the data back to the ground control center to help the firefighters make quick and accurate decisions.

[0044] In some embodiments, the safety belt 3 is made of a high-strength heat-resistant material and can withstand the high temperature and other harsh conditions in the fire. The sling device includes a quick lock and an adjustment mechanism to ensure that the trapped person can be quickly and safely fixed and rescued. The safety belt 3 is arranged below the power system 2 through the fixing belt 31.

[0045] In some embodiments, the outer shape of the cabin 1 is in a ring shape, and the power system 2 is arranged in the center of the ring.

[0046] In some embodiments, the cabin 1 is fixedly connected to the frame 22 through a suspension structure. The upper and lower sides of the cabin 1 both have perforations arranged in a ring shape; the frame 22 is disc-shaped, and the frame 22 has fixing holes arranged in a ring shape; the suspension structure includes a plurality of suspension ropes and connection buckles respectively connected to both ends of the suspension ropes; each perforation corresponds to one suspension rope; the middle part of the suspension rope passes through the perforation, and the two connection buckles at both ends are respectively buckled in two adjacent fixing holes. In this way, the unmanned aerial vehicle is firmly fixed in the center of the cabin 1, and the overall structure is light and stable.

[0047] In some embodiments, the interior of the cabin 1 has a first cavity 12 and a second cavity 13 divided by an elastic diaphragm. The first cavity 12 is located below the second cavity 13, as Figure 2 shown; or the first cavity 12 is located outside the second cavity 13, as Figure 3 shown.

[0048] The first cavity 12 is filled with the light gas and the fire extinguishing substance, and the second cavity 13 is filled with the light gas.

[0049] Dividing the cabin 1 into the first cavity 12 and the second cavity 13 is beneficial to ensuring the continuity of the output of the fire extinguishing substance and avoiding the reduction of the density of the subsequent release of the fire extinguishing substance due to the ebb and flow of the fire extinguishing substance and the light gas.

[0050] In some embodiments, the gas tank is located in the second cavity 13, and the nozzle 11 is connected to the first cavity 12.

[0051] In some embodiments, the motion system 21 includes a plurality of rotors 212 and a motion driving module 211 connected to the rotors 212. The motion driving module 211 is arranged at the bottom of the frame 22. The frame 22 is provided with protection holes corresponding to the rotors 212, and the rotors 212 are located in the protection holes. The material of the rotors 212 is a light and high-strength material, such as carbon fiber or composite material, to ensure high thrust and low energy consumption. The rotors 212 are installed in these protection holes, which can not only provide enough air flow space but also protect the rotors 212 from being impacted or interfered by sundries in the external environment. This design ensures that the rotors 212 can work efficiently and stably during the operation of the platform.

[0052] In some embodiments, a cooling system is provided inside the motion driving module 211. The cooling system includes a liquid carbon dioxide storage device and a temperature sensor. Both the liquid carbon dioxide storage device and the temperature sensor are located inside the motion driving module 211. The liquid carbon dioxide storage device is configured to release liquid carbon dioxide when the temperature detected by the temperature sensor is greater than a set threshold. By evaporating CO 2 gas to lower the internal temperature and ensure the stable operation of the system under extreme temperature conditions.

[0053] In some embodiments, the fire extinguishing substance includes one of water, foam, halogenated fire extinguishing agent or dry powder fire extinguishing agent, and the light gas includes helium.

[0054] In some embodiments, both the cabin 1 and the motion system 21 are covered with high-temperature resistant materials. The overall materials of the unmanned aerial vehicle have high-temperature resistance and corrosion resistance, and can work normally in the high-temperature fire field environment. The materials include polyimide aerogel and a glass fiber shell, and are coated with a super-reflective aluminum layer to reflect heat and protect the internal precision electronic components.

[0055] In some embodiments, a camera is further included, and the camera is disposed at the lower end of the power system 2.

[0056] The unmanned aerial vehicle is equipped with advanced sensor technologies, including a thermal imaging camera and a gas detection sensor, which can detect hot spots, smoke and harmful gases in the fire field in real time, provide key on-site information, and assist firefighters in effective fire extinguishing and rescue. The thermal imaging camera can penetrate the smoke and provide clear images of the fire field, while the gas detection sensor can identify the toxic and harmful gases that may exist in the fire field and provide timely warning information for firefighters.

[0057] Those skilled in the art should further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0058] The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be implemented in hardware, software modules executed by a processor, or a combination of both. The software modules may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0059] The specific embodiments described above further elaborate on the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only for the specific embodiments of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heavy-load UAV for firefighting and rescue, characterized in that: include: A cabin, wherein the cabin is filled with fire extinguishing substances and light gas, and a plurality of nozzles are provided on the cabin, wherein the nozzles are configured to enable the cabin to release the fire extinguishing substances; A power system, comprising a motion system and a frame, wherein the motion system is mounted on the frame, and the UAV is fixedly connected to the cabin through the frame; A gas tank is arranged inside the cabin, and an electric valve is arranged on the gas tank, and the electric valve is configured to enable the gas tank to release the light gas; A safety belt, fixed below the frame; An air pressure sensor, used to detect the air pressure in the cabin; and A controller, respectively connected to the power system, the nozzle, the gas tank and the air pressure sensor for communication; The controller is configured as follows: when the nozzle is closed, if the air pressure value detected by the air pressure sensor is less than a first preset threshold value, the electric valve is opened until the air pressure value is greater than or equal to the first preset threshold value; when the nozzle is opened, if the air pressure value detected by the air pressure sensor is less than a second preset threshold value, the electric valve is opened so that the air pressure value is greater than the second preset threshold value.

2. The heavy-load UAV for firefighting and rescue according to claim 1, characterized in that: The cabin body is in the shape of a ring, and the power system is arranged in the center of the ring.

3. The heavy-load UAV for firefighting and rescue according to claim 1, characterized in that: The cabin has a first cavity and a second cavity divided by an elastic diaphragm, and the first cavity is located outside or below the second cavity; The first cavity is filled with the light gas and the fire extinguishing substance, and the second cavity is filled with the light gas.

4. The heavy-load UAV for firefighting and rescue according to claim 3, characterized in that: The gas tank is located in the second cavity, and the nozzle is connected to the first cavity.

5. The heavy-load UAV for firefighting and rescue according to claim 1, characterized in that: The motion system includes a plurality of rotors and a motion drive module connected to the rotors. The motion drive module is arranged at the bottom of the frame. The frame is provided with a protection hole corresponding to the rotors, and the rotors are located in the protection hole.

6. The heavy-load UAV for firefighting and rescue according to claim 5, characterized in that: A cooling system is provided inside the motion drive module, and the cooling system includes a liquid carbon dioxide storage device and a temperature sensor. The liquid carbon dioxide storage device and the temperature sensor are both located inside the motion drive module. The liquid carbon dioxide storage device is configured to release liquid carbon dioxide when the temperature detected by the temperature sensor is greater than a set threshold.

7. The heavy-load UAV for firefighting and rescue according to claim 1, characterized in that: The fire extinguishing substance includes one of water, foam, halogenated fire extinguishing agent or dry powder fire extinguishing agent, and the light gas includes helium.

8. The heavy-load UAV for firefighting and rescue according to claim 1, characterized in that: The surfaces of the cabin and the motion system are both covered with high temperature resistant materials.

9. The heavy-load UAV for firefighting and rescue according to claim 1, characterized in that: It also includes a camera, which is arranged at the lower end of the power system.

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