Vehicle-mounted unmanned aerial vehicle rapid hydrogenation system and method

Abstract

The invention relates to the technical field of unmanned aerial vehicle hydrogenation, and discloses a vehicle-mounted unmanned aerial vehicle rapid hydrogenation system and method.The system at least comprises a pre-cooling system, a parking platform and a vehicle-mounted high-pressure hydrogen storage bottle set, and the vehicle-mounted high-pressure hydrogen storage bottle set comprises a plurality of vehicle-mounted high-pressure hydrogen storage bottles and a plurality of low-temperature high-pressure hydrogen storage bottles; the pre-cooling system comprises a hydrogen storage bottle built-in heat exchange pipe, a refrigerating unit and a secondary refrigerant, the vehicle-mounted high-pressure hydrogen storage bottle group is connected with the parking platform, the vehicle-mounted high-pressure hydrogen storage bottle group is used for providing hydrogen conveying for the parking platform, and the parking platform is used for carrying out hydrogenation on the unmanned aerial vehicle hydrogen storage bottle group of the unmanned aerial vehicle to be hydrogenated; the refrigerating unit is used for introducing the refrigerated secondary refrigerant into the heat exchange pipe in the hydrogen storage cylinder, and the heat exchange pipe in the hydrogen storage cylinder is arranged in the low-temperature and high-pressure hydrogen storage cylinder and used for exchanging heat with the low-temperature and high-pressure hydrogen storage cylinder. According to the technical scheme, short-distance efficient hydrogen injection of the hydrogen fuel cell unmanned aerial vehicle can be achieved, and then the working efficiency of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of hydrogen refueling technology for unmanned aerial vehicles (UAVs), and more particularly to a vehicle-mounted UAV rapid hydrogen refueling system and method. Background Technology

[0002] Hydrogen fuel cell drones are mainly refueled by replacing the hydrogen storage tanks in the drone or by going directly to a nearby hydrogen refueling station. When the drone's operating location is far from a hydrogen refueling station, the inability to refuel nearby becomes a major factor restricting the drone's working efficiency.

[0003] Because the hydrogen storage tanks for drones have high requirements for ambient temperature during the hydrogen refueling process, the pre-cooling system is a key system to ensure the safety of hydrogen refueling. Currently, the heat exchanger refrigeration system used in hydrogen refueling stations occupies a large area and is not suitable for flexible movement, making it difficult to apply to transportable hydrogen refueling devices for rapid hydrogen refueling of drones.

[0004] Therefore, how to achieve efficient short-range hydrogen refueling for hydrogen fuel cell drones has become a key research focus in the field of drone hydrogen refueling technology. Summary of the Invention

[0005] This application provides a vehicle-mounted drone rapid hydrogen refueling system and method, which can realize short-distance and efficient hydrogen refueling of hydrogen fuel cell drones, thereby improving the working efficiency of drones.

[0006] This application provides a vehicle-mounted drone rapid hydrogen refueling system. The system includes at least a precooling system, a parking platform, and a vehicle-mounted high-pressure hydrogen storage cylinder group. The vehicle-mounted high-pressure hydrogen storage cylinder group includes multiple vehicle-mounted high-pressure hydrogen storage cylinders and multiple cryogenic high-pressure hydrogen storage cylinders. The precooling system includes a heat exchange pipe inside the hydrogen storage cylinder, a refrigeration unit, and a refrigerant. The vehicle-mounted high-pressure hydrogen storage cylinder group is connected to the parking platform and is used to provide hydrogen supply to the parking platform. The parking platform is used to refuel the drone's hydrogen storage cylinder group. The refrigeration unit is used to cool the refrigerant and introduce the cooled refrigerant into the heat exchange pipe inside the hydrogen storage cylinder. The heat exchange pipe inside the hydrogen storage cylinder is located inside the cryogenic high-pressure hydrogen storage cylinder and is used for heat exchange with the cryogenic high-pressure hydrogen storage cylinder.

[0007] In one possible implementation, the system further includes a fuel cell stack system, a power conversion system, a control system, and a compression system. The control system includes a fuel cell gas intake control panel and a sequential hydrogen refueling control panel, wherein: the fuel cell gas intake control panel is used to connect the fuel cell stack system and the on-board high-pressure hydrogen storage tank assembly; the sequential hydrogen refueling control panel is used to identify the on-board high-pressure hydrogen storage tank to be supplied with hydrogen or to be pressurized within the on-board high-pressure hydrogen storage tank assembly, or to identify the cryogenic high-pressure hydrogen storage tank to be supplied with hydrogen; the fuel cell stack system is used to convert the chemical energy of the hydrogen supplied by the on-board high-pressure hydrogen storage tank assembly into electrical energy and transmit the electrical energy to the power conversion system; the power conversion system is used to perform electrical power conversion on the generated electrical energy; and the compression system is used to pressurize the on-board high-pressure hydrogen storage tank assembly.

[0008] In one possible implementation, the system further includes a hydrogen supply shut-off valve assembly and an active pressurization shut-off valve assembly, wherein: the hydrogen supply shut-off valve assembly includes a first shut-off valve assembly and a first check valve assembly, the hydrogen supply shut-off valve assembly being used to connect the on-board high-pressure hydrogen storage cylinder assembly and the sequential hydrogen refueling control panel; the active pressurization shut-off valve assembly includes a second shut-off valve assembly and a second check valve assembly, the active pressurization shut-off valve assembly being used to connect the sequential hydrogen refueling control panel and the on-board high-pressure hydrogen storage cylinder assembly.

[0009] In one possible implementation, the on-board high-pressure hydrogen storage tank assembly is connected to a first passage, a second passage, and a third passage, wherein: the on-board high-pressure hydrogen storage tank assembly is connected to the fuel cell stack system via the first passage, the first passage being used to provide the fuel cell stack system with a hydrogen source for generating electricity, and the first passage at least flows through the fuel cell gas intake control panel; the on-board high-pressure hydrogen storage tank assembly is connected to the drone hydrogen storage tank assembly via the second passage, the second passage being used to provide the drone hydrogen storage tank assembly with a hydrogen source for refueling, and the second passage at least flows through the hydrogen delivery shut-off valve assembly and the sequential hydrogen refueling control panel; the on-board high-pressure hydrogen storage tank assembly is connected to itself via the third passage, the third passage being used to actively pressurize the on-board high-pressure hydrogen storage tank assembly, and the third passage at least flows through the hydrogen delivery shut-off valve assembly, the compression system, the sequential hydrogen refueling control panel, and the active pressurization shut-off valve assembly.

[0010] In one possible implementation, the parking platform includes a parking cabin, a drone lifting platform, an automatic clamping device, and a buffer bar, wherein: the drone lifting platform, the automatic clamping device, and the buffer bar are disposed in the parking cabin; the drone lifting platform includes an automatic clamping device moving track, and the automatic clamping device is located on the automatic clamping device moving track; the parking cabin provides space for the drone to be refueled to perform hydrogen refueling operations; the drone lifting platform provides a parking platform for the drone to be refueled; the automatic clamping device is used to fix the drone to be refueled; and the buffer bar is used to resist the forces generated by the drone to be refueled during the hydrogen refueling operation.

[0011] In one possible implementation, the system further includes a hydrogen refueling system, and the parking cabin includes a hydrogen refueling gun moving track, wherein: the input end of the hydrogen refueling system is connected to the on-board high-pressure hydrogen storage cylinder group, the output end of the hydrogen refueling system is connected to a hydrogen refueling gun, the hydrogen refueling gun is disposed on the hydrogen refueling gun moving track, and the hydrogen refueling gun is used to refuel the hydrogen storage cylinder group of the drone to be refueled with hydrogen.

[0012] In one possible implementation, the on-board high-pressure hydrogen storage tank assembly further includes a first pressure sensor and a first temperature sensor, and the drone hydrogen storage tank assembly of the drone to be refueled includes a second pressure sensor and a second temperature sensor, wherein: the first temperature sensor is used to monitor the temperature of the on-board high-pressure hydrogen storage tank assembly, and the second temperature sensor is used to monitor the temperature of the drone hydrogen storage tank assembly; the first pressure sensor is used to monitor the first hydrogen pressure of the on-board high-pressure hydrogen storage tank assembly, and the second pressure sensor is used to monitor the second hydrogen pressure of the drone hydrogen storage tank assembly.

[0013] The second aspect of this application provides a method for rapid hydrogen refueling of a vehicle-mounted drone. This method is applied to the rapid hydrogen refueling system for a vehicle-mounted drone described in the first aspect. The method includes: acquiring the ambient temperature of the current operating point of the drone to be refueled; determining whether the ambient temperature meets pre-cooling conditions; if the ambient temperature meets preset pre-cooling conditions, pre-cooling a low-temperature, high-pressure hydrogen storage cylinder using a pre-cooling system; when the parking platform receives the drone to be refueled, connecting the hydrogen refueling nozzle to the drone's hydrogen storage cylinder group, using the low-temperature, high-pressure hydrogen storage cylinder to supply hydrogen to the hydrogen refueling nozzle, and refueling the drone with hydrogen through the hydrogen refueling nozzle until the drone's hydrogen storage cylinder group meets the preset temperature conditions; when the drone's hydrogen storage cylinder group meets the preset temperature conditions, continuing to supply hydrogen to the hydrogen refueling nozzle using a vehicle-mounted high-pressure hydrogen storage cylinder, and refueling the drone's hydrogen storage cylinder group with hydrogen through the hydrogen refueling nozzle.

[0014] The technical solution provided in one or more embodiments of this application proposes a vehicle-mounted drone rapid hydrogen refueling system, which can flexibly reach various operating points of the drone to provide efficient short-distance hydrogen refueling, thereby improving the working efficiency and application range of hydrogen fuel cell drones. Specifically, a vehicle-mounted high-pressure hydrogen storage tank group provides reserve hydrogen for the drone's hydrogen storage tank group. Alternatively, a low-temperature high-pressure hydrogen storage tank can be selected as the preferred hydrogen source based on the ambient temperature. By setting the heat exchanger inside the low-temperature high-pressure hydrogen storage tank with an internal heat exchange coil, the footprint of the pre-cooling system is saved, achieving a lightweight vehicle-mounted drone rapid hydrogen refueling system. This saves time and energy for the drone to travel to a hydrogen refueling station, improving the drone's working efficiency. Simultaneously, a parking platform is provided to offer drones a location for docking and hydrogen refueling, enhancing the system's intelligence and convenience.

[0015] As can be seen, the technical solution provided in this application offers transportation and hydrogen refueling support for drones through a vehicle-mounted drone rapid hydrogen refueling system, enabling efficient short-range hydrogen refueling and thus improving the drone's operational efficiency. Simultaneously, the pre-cooling system pre-cools the hydrogen, preventing damage to the carbon fiber material caused by rapid heating inside the hydrogen storage tank during refueling, thereby enhancing the safety of drone hydrogen refueling while achieving rapid and efficient refueling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a vehicle-mounted unmanned aerial vehicle (UAV) rapid hydrogen refueling system provided for embodiments of this application; Figure 2 A schematic diagram of the port structure of the internal displacement heat pipe of a hydrogen storage cylinder provided in one embodiment of this application; Figure 3 A schematic diagram of a vehicle-mounted drone rapid hydrogen refueling system provided for another embodiment of this application; Figure 4 A circuit connection diagram of a vehicle-mounted drone rapid hydrogen refueling system provided in one embodiment of this application; Figure 5(a) is a schematic diagram of the structure of a shutdown platform provided in one embodiment of this application; Figure 5(b) is a structural schematic diagram of a parking bay provided in one embodiment of this application; Figure 6A schematic diagram illustrating the steps of a rapid hydrogen refueling method for a vehicle-mounted drone, as provided in one embodiment of this application; Figure 7 This is a flowchart illustrating the steps for rapid hydrogenation provided in one embodiment of this application.

[0018] Explanation of reference numerals in the attached figures 10-Precooling system, 11-Shutdown platform, 12-On-board high-pressure hydrogen storage cylinder assembly, 121-On-board high-pressure hydrogen storage cylinder, 122-Cryogenic high-pressure hydrogen storage cylinder, 101-Heat displacement pipe inside the hydrogen storage cylinder, 1010-Input port, 1011-Output port, 20-Precooling system, 21-Shutdown platform, 22-On-board high-pressure hydrogen storage cylinder assembly, 23-Fuel cell stack system, 24-Power conversion system, 25-Control system, 26-Compression system, 221-On-board high-pressure hydrogen storage cylinder, 222-Cryogenic high-pressure hydrogen storage cylinder, 101a-On-board high-pressure hydrogen storage cylinder, 101b-On-board high-pressure hydrogen storage cylinder, 10 1c-On-board high-pressure hydrogen storage cylinder, 101d-On-board high-pressure hydrogen storage cylinder, 103-Fuel cell stack system, 801a-Drone hydrogen storage cylinder, 801b-Drone hydrogen storage cylinder, 801c-Drone hydrogen storage cylinder, 5-Pre-cooling system, 11-Stop valve, 12-Check valve, 13-Pressure reducing valve, 14-Pressure sensor, 401-Fuel cell gas intake control panel, 2-Power conversion system, 1501a-First stop valve, 1501b-First stop valve, 1501c-First stop valve, 1501d-First stop valve, 1502a-First check valve, 1502b-First check valve 1502c - First check valve, 1502d - First check valve, 601a - Hydrogen filling nozzle, 601b - Hydrogen filling nozzle, 601c - Hydrogen filling nozzle, 19a - Shut-off valve, 19b - Shut-off valve, 19c - Shut-off valve, 20a - Temperature sensor, 20b - Temperature sensor, 20c - Temperature sensor, 21a - Pressure sensor, 21b - Pressure sensor, 21c - Pressure sensor, 301 - Compression system, 402 - Sequential hydrogen filling control panel, 1801a - Second shut-off valve, 1801b - Second shut-off valve, 1801c - Second shut-off valve, 1801d - Second shut-off valve Valves, 1802a-Second check valve, 1802b-Second check valve, 1802c-Second check valve, 1802d-Second check valve, 10a-Pressure sensor, 10b-Pressure sensor, 10c-Pressure sensor, 10d-Pressure sensor, 9a-Temperature sensor, 9b-Temperature sensor, 9c-Temperature sensor, 9d-Temperature sensor, 30-Driving platform, 31-Driving compartment, 32-UAV waiting to be refueled, 33-Hydrogen refueling gun, 310-UAV lifting platform, 311-Automatic clamping device, 312-Buffer rod, 3110-Automatic clamping device moving track. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of embodiments in this application, unless otherwise stated, "multiple" means two or more. Additionally, the use of "based on" or "according to" implies openness and inclusiveness, because processes, steps, calculations, or other actions "based on" or "according to" one or more of the stated conditions or values ​​may in practice be based on additional conditions or beyond the stated values.

[0021] Hydrogen fuel cell drones, with their advantages of long endurance, high energy density, strong environmental adaptability, and long service life, have become an important direction for the development of green aviation and are widely used in scenarios such as infrastructure inspection, wide-area mapping, and emergency search and rescue. As the demand for long-duration, large-scale operations of hydrogen fuel cell drones increases, the refueling method has become a key factor restricting work efficiency. Current refueling methods mainly rely on replacing hydrogen storage cylinders or traveling to fixed hydrogen refueling stations. However, the distribution of fixed hydrogen refueling stations is limited. When drones are working at locations far from refueling stations, it is difficult to achieve fast and convenient refueling, resulting in lower work efficiency and a smaller working range for hydrogen fuel cell drones.

[0022] In practical applications, the hydrogen storage tanks for drones are highly sensitive to ambient temperature during refueling. Excessive temperature rise can cause irreversible damage to the carbon fiber material of the tanks, affecting the operational safety of hydrogen fuel cell drones. However, currently used heat exchanger refrigeration systems have a large footprint and are not suitable for flexible movement. Pre-cooling systems, as a critical system for ensuring safe hydrogen refueling, are unsuitable for mobile refueling devices. Furthermore, current mobile refueling devices are mostly designed for refueling hydrogen fuel cell vehicles. The hydrogen storage tanks for hydrogen fuel cell drones are much smaller than those for hydrogen fuel cell vehicles. Current mobile refueling devices are inconvenient for refueling drone tanks, and their large hydrogen storage volume and high energy consumption make them difficult to reach various drone operating locations flexibly. The inability to refuel locally is a significant factor limiting the operational efficiency of drones.

[0023] In view of the above, this application provides one or more embodiments of a vehicle-mounted drone rapid hydrogen refueling system and method, which can solve the above problems. The vehicle-mounted drone rapid hydrogen refueling system can flexibly reach various operating points of the drone, realize short-distance and efficient hydrogen refueling of hydrogen fuel cell drones, and improve the working efficiency of hydrogen fuel cell drones.

[0024] Please see Figure 1 One embodiment of this application provides a vehicle-mounted drone rapid hydrogen refueling system. This system includes at least a pre-cooling system 10, a parking platform 11, and a vehicle-mounted high-pressure hydrogen storage cylinder group 12. The vehicle-mounted high-pressure hydrogen storage cylinder group 12 includes multiple vehicle-mounted high-pressure hydrogen storage cylinders 121 and multiple cryogenic high-pressure hydrogen storage cylinders 122. The pre-cooling system 10 includes a heat exchanger 101 inside the hydrogen storage cylinder, a refrigeration unit, and a refrigerant. The vehicle-mounted high-pressure hydrogen storage cylinder group 12 is connected to the parking platform 11. The vehicle-mounted high-pressure hydrogen storage cylinder group 12 is used to provide hydrogen supply to the parking platform 11. The parking platform 11 is used to refill the hydrogen storage cylinder group of the drone to be refilled with hydrogen. The refrigeration unit is used to cool the refrigerant and to pass the cooled refrigerant into the heat exchanger 101 inside the hydrogen storage bottle. The heat exchanger 101 inside the hydrogen storage bottle is installed inside the low-temperature high-pressure hydrogen storage bottle 122 and is used to exchange heat with the low-temperature high-pressure hydrogen storage bottle 122.

[0025] Please see Figure 2 The heat exchange pipe 101 inside the hydrogen storage cylinder is provided with an input port 1010 and an output port 1011. The input port 1010 is used to introduce the refrigerant cooled by the refrigeration unit, and the output port 1011 is used to output the refrigerant after heat exchange back to the refrigeration unit. Specifically, during the heat exchange process, the refrigerant cooled by the refrigeration unit is introduced into the heat exchange pipe 101 inside the hydrogen storage cylinder through the input port 1010 and exchanges heat with the hydrogen in the low-temperature high-pressure hydrogen storage cylinder 122. The refrigerant after heat exchange is output back to the refrigeration unit from the output port 1011 to achieve pre-cooling treatment of the low-temperature high-pressure hydrogen storage cylinder 122.

[0026] In this embodiment, by placing the heat exchanger 101 inside the hydrogen storage tank within the low-temperature, high-pressure hydrogen storage tank 122, the footprint of the precooling system 10 can be reduced. Replacing the traditional external heat exchanger with the heat exchanger 101 inside the hydrogen storage tank reduces the footprint of the precooling system 10 in the vehicle-mounted drone rapid hydrogen refueling system, improving the flexibility of the system and enabling efficient, short-distance hydrogen refueling for hydrogen fuel cell drones, thereby increasing the operating efficiency of the drones awaiting refueling. Furthermore, directly precooling the hydrogen through the refrigerant inside the heat exchanger 101 within the hydrogen storage tank also reduces the power consumption of the refrigeration unit.

[0027] In this embodiment, the vehicle-mounted high-pressure hydrogen storage cylinder group 12 is divided into a vehicle-mounted high-pressure hydrogen storage cylinder 121 and a cryogenic high-pressure hydrogen storage cylinder 122, allowing for free switching of the hydrogen source for the drone to be refueled based on the ambient temperature. When the ambient temperature is low, the vehicle-mounted high-pressure hydrogen storage cylinder 121 is used directly for hydrogen delivery, avoiding unnecessary pre-cooling resource consumption. When the ambient temperature is high, the pre-cooled cryogenic high-pressure hydrogen storage cylinder 122 is used for hydrogen delivery, preventing damage to the carbon fiber material caused by rapid heating inside the drone's hydrogen storage cylinder during refueling, ensuring the safety and reliability of hydrogen refueling in high-temperature environments.

[0028] In this embodiment, the aforementioned vehicle-mounted drone rapid hydrogen refueling system can be used for the refueling and transportation of hydrogen fuel cell drones. It can flexibly reach various operating points of the drones, achieving efficient short-distance hydrogen refueling for the drones awaiting refueling, saving time and energy spent traveling to hydrogen refueling stations, and improving the working efficiency and application range of the hydrogen fuel cell drones. Simultaneously, the parking platform provides the drones with an operating platform for transporting hydrogen and a docking platform for landing, enhancing the convenience and flexibility of the vehicle-mounted drone rapid hydrogen refueling system. It should be noted that the vehicle-mounted method, using a hydrogen fuel cell vehicle as an example, is only one mobile implementation of a vehicle-mounted drone rapid hydrogen refueling system. Other mobile hydrogen refueling methods can be selected according to actual needs and technological developments, and this application does not impose any restrictions on this.

[0029] In one implementation, please refer to Figure 3 The aforementioned vehicle-mounted drone rapid hydrogen refueling system also includes a fuel cell stack system 23, a power conversion system 24, a control system 25, and a compression system 26. The control system 25 includes a fuel cell gas intake control panel and a sequential hydrogen refueling control panel. Specifically, the fuel cell gas intake control panel is used to connect the fuel cell stack system 23 and the vehicle-mounted high-pressure hydrogen storage tank group 22. The sequential hydrogen refueling control panel is used to identify the vehicle-mounted high-pressure hydrogen storage tank 221 to be supplied with hydrogen or to be pressurized in the vehicle-mounted high-pressure hydrogen storage tank group 22, or to identify the cryogenic high-pressure hydrogen storage tank 222 to be supplied with hydrogen. The fuel cell stack system 23 is used to convert the chemical energy of the hydrogen provided by the vehicle-mounted high-pressure hydrogen storage tank group 22 into electrical energy and transmit the electrical energy to the power conversion system 24. The power conversion system 24 is used to convert the generated electrical energy into electrical power. The compression system 26 is used to pressurize the vehicle-mounted high-pressure hydrogen storage tank group 22. Preferably, the compression system 26 can directly adopt a compressor.

[0030] In this embodiment, the onboard high-pressure hydrogen storage tank assembly 22 and fuel cell stack system 23 can be used to provide electrical energy to the system, thereby saving system energy consumption and equipment costs. Specifically, hydrogen from the onboard high-pressure hydrogen storage tank assembly 22 is transferred to the fuel cell stack system 23, which converts the chemical energy of the hydrogen into electrical energy. The generated electrical energy is then converted into electrical power suitable for devices such as the compression system 26, precooling system 20, and shutdown platform 21 through the power conversion system 24. By directly utilizing hydrogen to generate electrical energy suitable for the system through the fuel cell stack system 23 and power conversion system 24, without relying on additional power and hydrogen sources, system energy consumption is saved, and the integration and portability of the onboard drone rapid hydrogen refueling system are further improved.

[0031] In this embodiment, the aforementioned vehicle-mounted drone rapid hydrogen refueling system further includes a hydrogen supply shut-off valve assembly. This assembly comprises a first shut-off valve assembly and a first one-way valve assembly. The first shut-off valve assembly includes multiple first shut-off valves, and the first one-way valve assembly includes multiple first one-way valves. The hydrogen supply shut-off valve assembly is used to connect the vehicle-mounted high-pressure hydrogen storage cylinder assembly 22 and the sequential hydrogen refueling control panel of the control system 25. The aforementioned hydrogen supply shut-off valve assembly and sequential hydrogen refueling control panel can transfer hydrogen from the vehicle-mounted high-pressure hydrogen storage cylinder assembly 22 to the drone's hydrogen storage cylinder assembly for hydrogen refueling operations on the drone. Alternatively, it can pressurize the hydrogen from the vehicle-mounted high-pressure hydrogen storage cylinder assembly 22 via the compression system 26 and then transfer it back to the vehicle-mounted high-pressure hydrogen storage cylinder assembly 22 to achieve pressurization of the vehicle-mounted high-pressure hydrogen storage cylinder assembly 22.

[0032] In this embodiment, the aforementioned vehicle-mounted drone rapid hydrogen refueling system further includes an active pressure boosting shut-off valve assembly. Before transmitting hydrogen from the vehicle-mounted high-pressure hydrogen storage tank assembly 22 to the compression system 26, the hydrogen delivery shut-off valve assembly sequentially passes through the sequential hydrogen refueling control panel and the active pressure boosting valve assembly. The active pressure boosting shut-off valve assembly includes a second shut-off valve assembly and a second check valve assembly. The second shut-off valve assembly includes multiple second shut-off valves, and the second check valve assembly includes multiple second check valves. The active pressure boosting shut-off valve assembly is used to connect the sequential hydrogen refueling control panel and the vehicle-mounted high-pressure hydrogen storage tank assembly 22.

[0033] In one embodiment, the on-board high-pressure hydrogen storage tank assembly is connected to a first passage, a second passage, and a third passage. In the first passage, the on-board high-pressure hydrogen storage tank assembly is connected to a fuel cell stack system via the first passage, which provides a hydrogen source for generating electricity for the fuel cell stack system. The first passage flows through at least the fuel cell gas intake control panel. In the second passage, the on-board high-pressure hydrogen storage tank assembly is connected to a drone hydrogen storage tank assembly via the second passage, which provides a hydrogen source for refueling the drone hydrogen storage tank assembly. The second passage flows through at least the hydrogen supply shut-off valve assembly and the sequential hydrogen refueling control panel. In the third passage, the on-board high-pressure hydrogen storage tank assembly is connected to itself via the third passage, which is used for actively pressurizing the on-board high-pressure hydrogen storage tank assembly. The third passage flows through at least the hydrogen supply shut-off valve assembly, the compression system, the sequential hydrogen refueling control panel, and the active pressurization shut-off valve assembly.

[0034] In one embodiment, the on-board high-pressure hydrogen storage tank assembly includes a first pressure sensor and a first temperature sensor for real-time monitoring of the pressure and temperature inside the on-board high-pressure hydrogen storage tank. The drone hydrogen storage tank assembly includes a second pressure sensor and a second temperature sensor for real-time monitoring of the pressure and temperature inside the drone hydrogen storage tank. Because hydrogen has a negative Joule-Thomson coefficient and undergoes compression work during the hydrogen refueling process, the temperature of the hydrogen inside the drone hydrogen storage tank assembly will rise with the increase in internal pressure. Once the temperature of either the on-board high-pressure hydrogen storage tank assembly or the drone hydrogen storage tank assembly is detected to exceed 85°C, refueling will be immediately stopped to avoid potential safety hazards.

[0035] In one possible embodiment, please refer to Figure 4 , Figure 4 This diagram illustrates the circuit connection structure of a vehicle-mounted drone rapid hydrogen refueling system. The vehicle-mounted high-pressure hydrogen storage cylinder group (including vehicle-mounted high-pressure hydrogen storage cylinders 101a, 101b, 101c, and 101d) is connected to a first passage, a second passage, and a third passage. The first passage provides hydrogen to the fuel cell stack system 103 for generating electricity. The second passage provides hydrogen to the drone hydrogen storage cylinder group (including drone hydrogen storage cylinders 801a, 801b, and 801c) for refueling. The third passage is used to actively pressurize the vehicle-mounted high-pressure hydrogen storage cylinder group itself. Vehicle-mounted high-pressure hydrogen storage cylinders 101c and 101d are connected to a pre-cooling system 5, which converts them into cryogenic high-pressure hydrogen storage cylinders.

[0036] Specifically, the first pathway starts from the on-board high-pressure hydrogen storage tank assembly, passes sequentially through the shut-off valve 11, the one-way valve 12, the pressure reducing valve 13, the pressure sensor 14, and the fuel cell gas intake control panel 401, and connects to the fuel cell stack system 103. Furthermore, the fuel cell stack system 103 is connected to the power conversion system 2.

[0037] The second pathway starts from the on-board high-pressure hydrogen storage tank assembly, and sequentially passes through the first shut-off valve assembly (including first shut-off valves 1501a, 1501b, 1501c, and 1501d), the first one-way valve assembly (including first one-way valves 1502a, 1502b, 1502c, and 1502d), shut-off valve 16, sequential hydrogen refueling control panel 402, hydrogen refueling nozzles (601a, 601b, 601c), shut-off valves (19a, 19b, 19c), temperature sensors (20a, 20b, 20c), and pressure sensors (21a, 21b, 21c), and connects to the drone hydrogen storage tank assembly.

[0038] The third pathway starts from the on-board high-pressure hydrogen storage cylinder group, and sequentially passes through the first shut-off valve group (including first shut-off valve 1501a, first shut-off valve 1501b, first shut-off valve 1501c, first shut-off valve 1501d), the first one-way valve group (including first one-way valve 1502a, first one-way valve 1502b, first one-way valve 1502c, first one-way valve 1502d), shut-off valve 17, compression system 301, sequential hydrogen refueling control panel 402, and the second... The shut-off valve assembly (including the second shut-off valve 1801a, the second shut-off valve 1801b, the second shut-off valve 1801c, and the second shut-off valve 1801d), the second check valve assembly (including the second check valve 1802a, the second check valve 1802b, the second check valve 1802c, and the second check valve 1802d), the pressure sensor (10a, 10b, 10c, 10d), and the temperature sensor (9a, 9b, 9c, 9d) are connected to itself.

[0039] It should be noted that each vehicle-mounted high-pressure hydrogen storage cylinder is connected to a temperature sensor and a pressure sensor to monitor the temperature and pressure inside the cylinder. Similarly, each drone hydrogen storage cylinder is connected to a temperature sensor and a pressure sensor to monitor the temperature and pressure inside, and is also connected to a hydrogen refueling nozzle and a shut-off valve for adding hydrogen to the current drone storage cylinder. For example, the vehicle-mounted high-pressure hydrogen storage cylinder 101a is connected to a temperature sensor 9a and a pressure sensor 10a, while the drone hydrogen storage cylinder 801a is connected to a hydrogen refueling nozzle 601a, a shut-off valve 19a, a temperature sensor 20a, and a pressure sensor 21a. The aforementioned sequential hydrogen refueling control panel can be used to determine the specific pathway connecting to a particular vehicle-mounted high-pressure hydrogen storage cylinder or a particular drone hydrogen storage cylinder.

[0040] In one embodiment, referring to Figures 5(a) and 5(b), the parking platform 30 includes one or more parking bays 31. Each parking bay 31 is equipped with a drone lifting platform 310, an automatic clamping device 311, and a buffer rod 312, providing space for the drone 32 to be refueled to perform hydrogen refueling operations. The drone lifting platform 310, the automatic clamping device 311, and the buffer rod 312 are all located in the parking bay 31. The parking bay 31 is a sealed cabin with an automatically opening and closing door. The drone lifting platform 310 includes an automatic clamping device moving track 3110, which provides a parking platform for the drone 32 to be refueled. The automatic clamping device 311 is located on the automatic clamping device moving track 3110 and is used to fix the drone 32 to be refueled. The buffer rod 312 is fixed to the wall of the parking bay 31 to resist the force generated by the drone 32 to be refueled during the hydrogen refueling operation.

[0041] In addition, the aforementioned vehicle-mounted drone rapid hydrogen refueling system also includes a hydrogen refueling system. The input end of the hydrogen refueling system is connected to the vehicle-mounted high-pressure hydrogen storage tank group, and the output end of the hydrogen refueling system is connected to a hydrogen refueling gun 33, through which hydrogen is injected into the drone's hydrogen storage tank group. The parking compartment 31 also has a hydrogen refueling gun moving track 330, on which the hydrogen refueling gun 33 is placed. The hydrogen refueling gun 33 can be moved to the position of the drone 32 to be refueled via the hydrogen refueling gun moving track 330. Preferably, the parking platform 30 is set at the upper part of the vehicle compartment to facilitate the parking of the drone 32 to be refueled.

[0042] Specifically, when the landing drone 32 is detected to be about to land, the door of the parking bay 31 automatically opens, and the drone 32 lands on the drone lifting platform 310 in the parking bay 31. The automatic clamping device 311 fixes the drone 32 according to the position of its outriggers. The drone lifting platform 310 can automatically adjust the height of the hydrogen refueling port of the drone 32 so that the height of the hydrogen refueling port is the same as that of the hydrogen refueling gun 33. The clamping device moves back and forth on the moving track 3110 to make the hydrogen filling port of the drone 32 to be hydrogenated and the hydrogen filling gun 33 be in the same front and back position. The hydrogen filling gun 33 moves left and right on the moving track 330 to align the hydrogen filling port of the drone 32 to be hydrogenated with the hydrogen filling gun 33 for hydrogen injection operation. When aligning the hydrogen filling port of the drone 32 to be hydrogenated with the hydrogen filling gun 33, the buffer rod 312 extends from the wall of the parking compartment 31 to resist the force on the drone when the hydrogen filling gun 33 is inserted into the hydrogen filling port of the drone 32.

[0043] In this embodiment, by means of the precise left and right movement of the hydrogen refueling gun 33, the automatic and flexible lifting of the drone lifting platform 310, and the precise front and back adjustment of the automatic clamping device 311, the hydrogen refueling port of the drone 32 to be refueled can be automatically aligned with the hydrogen refueling gun 33 quickly and accurately, thereby significantly improving the efficiency of drone refueling operations and effectively simplifying the drone landing operation process and reducing the complexity of operation.

[0044] Please see Figure 6 This application also provides a method for rapid hydrogen refueling of a vehicle-mounted drone, applied to the vehicle-mounted drone rapid hydrogen refueling system described in the first aspect above, the method specifically including the following steps: S1: Obtain the ambient temperature of the current working point of the drone to be refueled, and determine whether the ambient temperature meets the pre-cooling conditions. If the ambient temperature meets the preset pre-cooling conditions, pre-cool the low-temperature high-pressure hydrogen storage cylinder through the pre-cooling system. S3: When the parking platform receives the drone to be refueled with hydrogen, it connects the hydrogen refueling gun to the drone's hydrogen storage tank group, uses the low temperature and high pressure hydrogen storage tank to provide hydrogen to the hydrogen refueling gun, and refuels the drone with hydrogen through the hydrogen refueling gun until the drone's hydrogen storage tank group meets the preset temperature conditions. S5: When the hydrogen storage tank group of the drone meets the preset temperature condition, continue to use the vehicle-mounted high-pressure hydrogen storage tank to supply hydrogen to the hydrogen refueling gun, and refuel the hydrogen storage tank group of the drone through the hydrogen refueling gun.

[0045] In this embodiment, when a drone requiring hydrogen refueling needs to refuel, the system determines whether pre-cooling refueling should be used by judging whether the ambient temperature at the drone's operating point meets a preset pre-cooling condition. The pre-cooling condition is that the ambient temperature is greater than or equal to a preset pre-cooling temperature, which can be set according to actual conditions, preferably between 15°C and 20°C. Taking a preset pre-cooling temperature of 15°C as an example, if the ambient temperature is greater than or equal to 15°C, pre-cooling refueling is used. This involves pre-cooling the low-temperature, high-pressure hydrogen storage cylinder using a pre-cooling system, first using the low-temperature, high-pressure hydrogen storage cylinder to supply hydrogen to the drone's hydrogen storage cylinder assembly, and then using a vehicle-mounted high-pressure hydrogen storage cylinder to supply hydrogen to the drone's hydrogen storage cylinder assembly. If the ambient temperature is less than 15°C, ambient temperature refueling is used, meaning the vehicle-mounted high-pressure hydrogen storage cylinder directly supplies hydrogen to the drone's hydrogen storage cylinder assembly.

[0046] Specifically, if the ambient temperature is greater than or equal to 15°C, before the vehicle-mounted drone rapid hydrogen refueling system arrives at the drone's operating location, the low-temperature high-pressure hydrogen storage cylinder is pre-cooled by the pre-cooling system. When the parking platform receives the drone, the hydrogen refueling gun is connected to the drone's hydrogen storage cylinder group. Hydrogen from the low-temperature high-pressure hydrogen storage cylinder group is first added to the drone through the hydrogen refueling gun. When the drone's hydrogen storage cylinder group meets the preset temperature conditions, hydrogen from the vehicle-mounted high-pressure hydrogen storage cylinder group is then added to the drone through the hydrogen refueling gun.

[0047] In this embodiment, the aforementioned preset temperature condition refers to the temperature of the drone's hydrogen storage tank assembly being within the range of -45°C to -55°C. Typically, a low-temperature, high-pressure hydrogen storage tank is used to fill the drone's hydrogen storage tank assembly with hydrogen. When the internal pressure of the drone's hydrogen storage tank assembly reaches P / 5-P / 6, the drone's hydrogen storage tank assembly is pre-cooled to -45°C to -55°C. Here, P is the nominal operating pressure of the drone's hydrogen storage tank assembly, which is between 35MPa and 70MPa. It should be noted that the hydrogen refueling system is not affected by the different nominal operating pressures of the drone's hydrogen storage tanks.

[0048] In this embodiment, when refueling the drone's hydrogen storage tank assembly with an onboard high-pressure hydrogen storage tank assembly, either direct refueling or two-stage refueling pressure refueling methods can be used. Direct refueling refers to supplying hydrogen to the drone's hydrogen storage tank assembly through a single onboard high-pressure hydrogen storage tank, while two-stage refueling refers to supplying hydrogen to the drone's hydrogen storage tank assembly through two onboard high-pressure hydrogen storage tanks. It should be noted that during the hydrogen fuel cell drone refueling process, hydrogen is refueled using the pressure difference between the drone's hydrogen storage tank and the onboard high-pressure hydrogen storage tank. If the pressure of a single onboard high-pressure hydrogen storage tank may not meet the refueling requirements of the drone's hydrogen storage tank assembly, a two-stage refueling method can be used. By flexibly changing the pressure refueling method according to the pressure of the onboard high-pressure hydrogen storage tank, the efficiency and safety of the refueling process are ensured, thereby improving the hydrogen refueling efficiency.

[0049] Specifically, the system checks whether the current on-board high-pressure hydrogen storage cylinder meets the preset pressure condition, and adjusts the hydrogen injection method according to the pressure of the on-board high-pressure hydrogen storage cylinder. The preset pressure condition can be set to the pressure of the on-board high-pressure hydrogen storage cylinder being greater than or equal to (P+20MPa). If the on-board high-pressure hydrogen storage cylinder does not meet the preset pressure condition, the current on-board high-pressure hydrogen storage cylinder is identified as the first target on-board high-pressure hydrogen storage cylinder, and another on-board high-pressure hydrogen storage cylinder adjacent to the first target on-board high-pressure hydrogen storage cylinder is identified as the second target on-board high-pressure hydrogen storage cylinder. Two-stage injection is performed through the first target on-board high-pressure hydrogen storage cylinder and the second target on-board high-pressure hydrogen storage cylinder. If the on-board high-pressure hydrogen storage cylinder meets the preset pressure condition, the current on-board high-pressure hydrogen storage cylinder is used to inject hydrogen into the UAV hydrogen storage cylinder group, that is, direct injection is adopted.

[0050] In one embodiment, the above two-stage refueling method also requires determining the pressure of each target vehicle-mounted high-pressure hydrogen storage cylinder and selecting the target vehicle-mounted high-pressure hydrogen storage cylinder for refueling based on different pressure conditions. According to the drone's hydrogen storage cylinder pressure requirements and the refueling sequence, a first preset pressure condition is set for the first target vehicle-mounted high-pressure hydrogen storage cylinder, and a second preset pressure condition is set for the second target vehicle-mounted high-pressure hydrogen storage cylinder. For example, the first preset pressure condition can be that the pressure of the first target vehicle-mounted high-pressure hydrogen storage cylinder is greater than or equal to P / 3, and the second preset pressure condition can be that the pressure of the second target vehicle-mounted high-pressure hydrogen storage cylinder is greater than or equal to (P+10MPa). Specifically, this includes the following four cases: Scenario 1: If it is determined that the first target vehicle-mounted high-pressure hydrogen storage cylinder meets the first preset pressure condition and the second target vehicle-mounted high-pressure hydrogen storage cylinder meets the second preset pressure condition, the first target vehicle-mounted high-pressure hydrogen storage cylinder is used to perform the first-stage hydrogen injection operation for the UAV hydrogen storage cylinder group. After the first-stage hydrogen injection operation is completed, the second target vehicle-mounted high-pressure hydrogen storage cylinder is used to perform the second-stage hydrogen injection operation for the UAV.

[0051] Scenario 2: If the first target vehicle-mounted high-pressure hydrogen storage tank meets the first preset pressure condition, but the second target vehicle-mounted high-pressure hydrogen storage tank does not meet the second preset pressure condition, the second target vehicle-mounted high-pressure hydrogen storage tank will be actively pressurized through the first target vehicle-mounted high-pressure hydrogen storage tank.

[0052] Scenario 3: If it is determined that the first target vehicle-mounted high-pressure hydrogen storage cylinder does not meet the first preset pressure condition, it is necessary to determine whether the second target vehicle-mounted high-pressure hydrogen storage cylinder meets the preset pressure condition. If it is determined that the second target vehicle-mounted high-pressure hydrogen storage cylinder meets the preset pressure condition, the second target vehicle-mounted high-pressure hydrogen storage cylinder is directly used to inject hydrogen into the UAV.

[0053] Scenario 4: If it is determined that the first target vehicle-mounted high-pressure hydrogen storage tank does not meet the first preset pressure condition, it is necessary to determine whether the second target vehicle-mounted high-pressure hydrogen storage tank meets the preset pressure condition. If it is determined that the second target vehicle-mounted high-pressure hydrogen storage tank does not meet the preset pressure condition, the second target vehicle-mounted high-pressure hydrogen storage tank is actively pressurized through the first target vehicle-mounted high-pressure hydrogen storage tank.

[0054] Please see Figure 7 This application provides an embodiment applying the above method. In this embodiment, the vehicle-mounted drone rapid hydrogen refueling system has four 70MPa vehicle-mounted high-pressure hydrogen storage cylinder groups, including vehicle-mounted high-pressure hydrogen storage cylinders 101a, 101b, 101c, and 101d. The vehicle-mounted high-pressure hydrogen storage cylinders in the group are used sequentially, and the working pressure of each vehicle-mounted high-pressure hydrogen storage cylinder is not less than 2MPa. In this embodiment, the nominal working pressure is... Hydrogen is added to the hydrogen storage tank of the drone to be refueled (35MPa to 70MPa). The vehicle-mounted high-pressure hydrogen storage tank 101a is used as the first target hydrogen storage tank, and the vehicle-mounted high-pressure hydrogen storage tank 101b is used as the second target hydrogen storage tank. The hydrogen refueling is carried out in accordance with the following steps.

[0055] Step S1: First, determine whether to use the ambient temperature refueling method or the pre-cooling refueling method based on the ambient temperature of the hydrogen fuel cell drone's operating site. When the ambient temperature is less than 15℃, proceed to step S10; when the ambient temperature is greater than or equal to 15℃, proceed to step S11.

[0056] Step S11: Pre-cool the low-temperature high-pressure hydrogen storage cylinder through the pre-cooling system, and use the pre-cooled low-temperature high-pressure hydrogen storage cylinder to fill the drone's hydrogen storage cylinder with hydrogen. When the temperature sensor detects that the drone's hydrogen storage cylinder has been pre-cooled to -45℃ to -55℃, use the vehicle-mounted high-pressure hydrogen storage cylinder to fill the drone's hydrogen storage cylinder with hydrogen, i.e., execute step S10.

[0057] Step S10: Detect the working pressure of the on-board high-pressure hydrogen storage cylinder 101a. If the pressure of the on-board high-pressure hydrogen storage cylinder 101a... Then proceed to step S101. If the pressure of the on-board high-pressure hydrogen storage cylinder 101a is... Then proceed to step S102.

[0058] Step S101: Use the vehicle-mounted high-pressure hydrogen storage cylinder 101a to supply hydrogen to the drone's hydrogen storage cylinder for direct refueling via a hydrogen refueling gun.

[0059] Step S102: Determine the working pressure of the on-board high-pressure hydrogen storage cylinder 101a. Does it meet the requirements? On the one hand, if the following conditions are met... Then, the working pressure of the on-board high-pressure hydrogen storage cylinder 101b can be further determined. Does it meet the requirements? ,like and Then proceed to step S1020, if but If so, then step S1021 is executed. On the other hand, if the condition is not met... ,Right now Determine the working pressure of the on-board high-pressure hydrogen storage cylinder 101b. Does it meet the requirements? If the condition is met, proceed to step S1030; otherwise, proceed to step S1031.

[0060] Step S1020: Use the vehicle-mounted high-pressure hydrogen storage cylinder 101a to perform the first-stage refueling of the drone's hydrogen storage cylinder, and then use the vehicle-mounted high-pressure hydrogen storage cylinder 101b to perform the second-stage refueling of the drone's hydrogen storage cylinder.

[0061] Step S1021: Actively pressurize the vehicle-mounted high-pressure hydrogen storage tank 101b using the vehicle-mounted high-pressure hydrogen storage tank 101a, and use the pressurized vehicle-mounted high-pressure hydrogen storage tank 101b as the first target vehicle-mounted high-pressure hydrogen storage tank. That is, use the vehicle-mounted high-pressure hydrogen storage tank 101b as the original vehicle-mounted high-pressure hydrogen storage tank 101a, repeat the content of the vehicle-mounted high-pressure hydrogen storage tank 101a in step S10, and sequentially use the vehicle-mounted high-pressure hydrogen storage tank 101c as the second target hydrogen storage tank.

[0062] Step S1030: Use the vehicle-mounted high-pressure hydrogen storage cylinder 101b to directly fill the hydrogen storage cylinder of the drone with hydrogen.

[0063] Step S1031: Actively pressurize the vehicle-mounted high-pressure hydrogen storage tank 101b using the vehicle-mounted high-pressure hydrogen storage tank 101a, and use the pressurized vehicle-mounted high-pressure hydrogen storage tank 101b as the first target vehicle-mounted high-pressure hydrogen storage tank. That is, use the vehicle-mounted high-pressure hydrogen storage tank 101b as the original vehicle-mounted high-pressure hydrogen storage tank 101a, repeat the content of the vehicle-mounted high-pressure hydrogen storage tank 101a in step S10, and sequentially use the vehicle-mounted high-pressure hydrogen storage tank 101c as the second target hydrogen storage tank.

[0064] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for the method embodiments, since they are basically similar to the system embodiments, relevant parts can be referred to the descriptions of the system embodiments.

[0066] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0067] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A vehicle-mounted drone rapid hydrogen refueling system, characterized in that, It includes at least a precooling system, a parking platform, and an on-board high-pressure hydrogen storage cylinder group. The on-board high-pressure hydrogen storage cylinder group includes multiple on-board high-pressure hydrogen storage cylinders and multiple cryogenic high-pressure hydrogen storage cylinders. The precooling system includes internal heat exchange pipes in the hydrogen storage cylinders, a refrigeration unit, and a refrigerant. The vehicle-mounted high-pressure hydrogen storage cylinder group is connected to the parking platform. The vehicle-mounted high-pressure hydrogen storage cylinder group is used to provide hydrogen supply to the parking platform, and the parking platform is used to refill the hydrogen storage cylinder group of the drone to be refilled with hydrogen. The refrigeration unit is used to cool the refrigerant and to pass the cooled refrigerant into the heat exchanger inside the hydrogen storage cylinder. The heat exchanger inside the hydrogen storage cylinder is installed inside the low-temperature high-pressure hydrogen storage cylinder and is used to exchange heat with the low-temperature high-pressure hydrogen storage cylinder.

2. The system according to claim 1, characterized in that, The system also includes a fuel cell stack system, a power conversion system, a control system, and a compression system. The control system includes a fuel cell gas intake control panel and a sequential hydrogen addition control panel, wherein: The fuel cell gas intake control panel is used to connect the fuel cell stack system and the on-board high-pressure hydrogen storage tank group. The sequential hydrogen refueling control panel is used to identify the on-board high-pressure hydrogen storage tank to be supplied with hydrogen or pressurized in the on-board high-pressure hydrogen storage tank group, or to identify the low-temperature high-pressure hydrogen storage tank to be supplied with hydrogen. The fuel cell stack system is used to convert the chemical energy of hydrogen provided by the on-board high-pressure hydrogen storage tank into electrical energy, and to transmit the electrical energy to the power conversion system; The power conversion system is used to convert the generated electrical energy into electrical power, and the compression system is used to pressurize the on-board high-pressure hydrogen storage cylinder group.

3. The system according to claim 2, characterized in that, The system also includes a hydrogen supply shut-off valve assembly and an active pressurization shut-off valve assembly, wherein: The hydrogen supply shut-off valve group includes a first shut-off valve group and a first check valve group. The hydrogen supply shut-off valve group is used to connect the on-board high-pressure hydrogen storage cylinder group and the sequential hydrogen refueling control panel. The active boost shut-off valve assembly includes a second shut-off valve assembly and a second check valve assembly. The active boost shut-off valve assembly is used to connect the sequential hydrogen refueling control panel and the on-board high-pressure hydrogen storage cylinder assembly.

4. The system according to claim 3, characterized in that, The on-board high-pressure hydrogen storage cylinder assembly is connected to a first passage, a second passage, and a third passage, wherein: The on-board high-pressure hydrogen storage tank assembly is connected to the fuel cell stack system through the first passage. The first passage is used to provide the fuel cell stack system with a source of hydrogen for generating electricity. The first passage flows through at least the fuel cell gas intake control panel. The vehicle-mounted high-pressure hydrogen storage cylinder group is connected to the drone hydrogen storage cylinder group through the second passage. The second passage is used to provide a hydrogen source for the drone hydrogen storage cylinder group to refuel. The second passage flows through at least the hydrogen supply shut-off valve group and the sequential hydrogen refueling control panel. The on-board high-pressure hydrogen storage cylinder group is connected to itself through the third passage, which is used to actively pressurize the on-board high-pressure hydrogen storage cylinder group. The third passage flows through at least the hydrogen delivery shut-off valve group, the compression system, the sequential hydrogen refueling control panel, and the active pressurization shut-off valve group.

5. The system according to claim 1, characterized in that, The parking platform includes one or more parking bays, and each parking bay is equipped with a drone lift, an automatic gripping device, and a buffer bar, wherein: The drone lifting platform includes an automatic clamping device moving track, and the automatic clamping device is located on the automatic clamping device moving track; The drone lifting platform is used to provide a parking platform for the drone to be refueled with hydrogen, the automatic clamping device is used to fix the drone to be refueled with hydrogen, and the buffer rod is used to resist the force generated by the drone to be refueled with hydrogen during the hydrogen refueling operation.

6. The system according to claim 5, characterized in that, The system also includes a hydrogen refueling system, and the parking compartment further includes a hydrogen refueling nozzle moving track, wherein: The input end of the hydrogen refueling system is connected to the on-board high-pressure hydrogen storage cylinder group, and the output end of the hydrogen refueling system is connected to a hydrogen refueling gun. The hydrogen refueling gun is set on the hydrogen refueling gun moving track and is used to refuel the hydrogen storage cylinder group of the drone to be refueled.

7. The system according to claim 1, characterized in that, The vehicle-mounted high-pressure hydrogen storage tank assembly also includes a first pressure sensor and a first temperature sensor, and the drone hydrogen storage tank assembly of the drone to be refueled includes a second pressure sensor and a second temperature sensor, wherein: The first temperature sensor is used to monitor the temperature of the vehicle-mounted high-pressure hydrogen storage tank assembly, and the second temperature sensor is used to monitor the temperature of the drone-mounted hydrogen storage tank assembly. The first pressure sensor is used to monitor the first hydrogen pressure of the vehicle-mounted high-pressure hydrogen storage tank assembly, and the second pressure sensor is used to monitor the second hydrogen pressure of the drone hydrogen storage tank assembly.

8. A method for rapid hydrogen refueling of a vehicle-mounted drone, characterized in that, The method is applied to the vehicle-mounted unmanned aerial vehicle rapid hydrogen refueling system as described in any one of claims 1-7, and the method includes: The ambient temperature of the current working point of the drone to be refueled is obtained, and it is determined whether the ambient temperature meets the pre-cooling conditions. If the ambient temperature meets the preset pre-cooling conditions, the low-temperature high-pressure hydrogen storage cylinder is pre-cooled through the pre-cooling system. When the parking platform receives a drone to be refueled with hydrogen, it connects the hydrogen refueling gun to the drone's hydrogen storage tank assembly, uses the low-temperature high-pressure hydrogen storage tank to supply hydrogen to the hydrogen refueling gun, and refuels the drone with hydrogen through the hydrogen refueling gun until the drone's hydrogen storage tank assembly meets the preset temperature conditions. When the drone hydrogen storage tank group meets the preset temperature conditions, the vehicle-mounted high-pressure hydrogen storage tank continues to supply hydrogen to the hydrogen refueling gun, and the hydrogen is then refueled into the drone hydrogen storage tank group through the hydrogen refueling gun.

9. The method according to claim 8, characterized in that, If it is determined that the ambient temperature does not meet the preset pre-cooling conditions, the method includes: When the parking platform receives a drone to be refueled with hydrogen, it connects the hydrogen refueling gun to the drone and uses an on-board high-pressure hydrogen storage cylinder to supply hydrogen to the hydrogen refueling gun, and then uses the hydrogen refueling gun to refuel the drone's hydrogen storage cylinder group.

10. The method according to claim 8 or 9, characterized in that, Hydrogen is supplied to the hydrogen refueling gun using a vehicle-mounted high-pressure hydrogen storage cylinder, and hydrogen is added to the drone's hydrogen storage cylinder assembly via the hydrogen refueling gun, including: Detect whether the current on-board high-pressure hydrogen storage cylinder meets the preset pressure condition. If the on-board high-pressure hydrogen storage cylinder does not meet the preset pressure condition, determine the current on-board high-pressure hydrogen storage cylinder as the first target on-board high-pressure hydrogen storage cylinder, and determine another on-board high-pressure hydrogen storage cylinder adjacent to the first target on-board high-pressure hydrogen storage cylinder as the second target on-board high-pressure hydrogen storage cylinder. If it is determined that the first target vehicle-mounted high-pressure hydrogen storage cylinder meets the first preset pressure condition and the second target vehicle-mounted high-pressure hydrogen storage cylinder meets the second preset pressure condition, the first target vehicle-mounted high-pressure hydrogen storage cylinder is used to perform a first-stage hydrogen injection operation for the UAV hydrogen storage cylinder group. After the first-stage hydrogen injection operation is completed, the second target vehicle-mounted high-pressure hydrogen storage cylinder is used to perform a second-stage hydrogen injection operation for the UAV.

11. The method according to claim 10, characterized in that, If the on-board high-pressure hydrogen storage cylinder meets the preset pressure conditions, the method includes: The current vehicle-mounted high-pressure hydrogen storage cylinder is used to fill the hydrogen storage cylinder group of the UAV.

12. The method according to claim 10, characterized in that, If it is determined that the first target vehicle-mounted high-pressure hydrogen storage cylinder does not meet the first preset pressure condition, the method further includes: If it is determined that the second target vehicle-mounted high-pressure hydrogen storage cylinder meets the preset pressure conditions, the second target vehicle-mounted high-pressure hydrogen storage cylinder is used to inject hydrogen into the drone. If it is determined that the second target vehicle-mounted high-pressure hydrogen storage cylinder does not meet the preset pressure conditions, the second target vehicle-mounted high-pressure hydrogen storage cylinder is actively pressurized using the first target vehicle-mounted high-pressure hydrogen storage cylinder.

13. The method according to claim 10, characterized in that, If it is determined that the first target vehicle-mounted high-pressure hydrogen storage cylinder meets the first preset pressure condition, and it is determined that the second target vehicle-mounted high-pressure hydrogen storage cylinder does not meet the second preset pressure condition, the method further includes: The first target vehicle-mounted high-pressure hydrogen storage cylinder is used to actively pressurize the second target vehicle-mounted high-pressure hydrogen storage cylinder.

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