A high altitude balloon system

Abstract

The application relates to the technical field of aerostats, and provides a high-altitude balloon system which comprises a rising balloon, a cutting mechanism, a recovery balloon and a gondola, the bottom of the rising balloon is connected with the bottom of the recovery balloon, the recovery balloon is arranged in the rising balloon, the gondola is fixedly connected with the recovery balloon, and a task execution device is arranged in the gondola; the cutting mechanism is arranged on the outer wall of the rising balloon and is used for cutting the rising balloon when the task execution device is recovered; wherein the buoyancy of the recovery balloon is less than the total gravity of the load of the gondola. The application has the advantages of simple structure, low cost and convenient operation, compared with the traditional mode of recovering the gondola load by using a parachute, the application has fewer interference factors when the gondola load is recovered, and the recovery efficiency of the task execution device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerostat, in particular to a high altitude balloon system. BACKGROUND

[0002] The high altitude balloon is usually used to perform scientific experiments, remote sensing detection, meteorological observation and other tasks. The high altitude balloon carries a gondola to ascend to high altitude, and the gondola carries important task execution equipment, which performs corresponding tasks. After the flight task is completed, the task execution equipment needs to be recovered to the ground. At present, in order to ensure the integrity of the equipment, a parachute is usually installed on the connecting rope between the ascending balloon and the gondola, which slowly lowers the load to the ground to slow down the falling speed of the gondola and reduce the landing impact force.

[0003] However, the normal development of the parachute is usually affected by many factors. The opening of the parachute depends on the stability of air flow, air pressure and other environmental factors. When the high altitude air pressure is low, the parachute may not be fully deployed, or it is difficult to provide the preset resistance after being deployed, which affects the recovery effect. Moreover, in order to facilitate the opening of the parachute, the added automatic parachute opening device and the self weight of the parachute increase the overall load of the ascending balloon and the overall length between the gondola and the ascending balloon, thereby increasing the difficulty of sending the ascending balloon. In addition, the folding of the parachute has very high precision requirements. If the folding is slightly inappropriate, the parachute opening may fail during the next recovery of the gondola, thereby increasing the hidden danger of damage to the task execution equipment and reducing the recovery efficiency of the task execution equipment. SUMMARY

[0004] The present application provides a high altitude balloon system to solve the problem that the existing high altitude balloon uses a parachute to recover the task execution equipment, which has many interference factors and cannot ensure the recovery efficiency of the task execution equipment.

[0005] The present application provides a high altitude balloon system, which comprises an ascending balloon, a cutting mechanism, a recovery balloon and a gondola. The bottom of the ascending balloon is connected to the bottom of the recovery balloon, and the recovery balloon is built into the inside of the ascending balloon. The gondola is fixedly connected to the recovery balloon, and the gondola is internally provided with a task execution equipment. The cutting mechanism is installed on the outer wall of the ascending balloon and is used to cut the ascending balloon when the task execution equipment is recovered. The buoyancy of the recovery balloon is less than the total weight of the load of the gondola.

[0006] According to the present application, the inside of the ascending balloon and the inside of the recovery balloon are both filled with helium.

[0007] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0008] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0009] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0010] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0011] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0012] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0013] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0014] The high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor, the controller, the GPS sensor and the height sensor are fixed in the gondola, the controller is used for being in communication connection with a ground station, the GPS sensor and the height sensor are in communication connection with the controller, and the controller is in communication connection with the cutting mechanism.

[0015] The high altitude balloon system provided by the application is characterized in that: when being launched, the gondola load is driven by the ascending balloon to ascend to high altitude; the recovery balloon is connected with the ascending balloon and ascends to high altitude together with the ascending balloon; after the flight task is completed, the cutting mechanism cuts the ascending balloon, and the buoyancy of the high altitude balloon system is sharply reduced; because the buoyancy of the recovery balloon is less than the total weight of the gondola and the task execution device, the falling speed of the gondola is slowed down by the recovery balloon when the gondola falls by itself, and the landing impact force of the gondola is reduced, so that the task execution device is not damaged. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 is a structure schematic diagram of the high altitude balloon system provided by the application when ascending.

[0018] Figure 2 is a structure schematic diagram of the high altitude balloon system provided by the application when descending.

[0019] Reference signs:

[0020] 1, ascending balloon; 2, recovery balloon; 3, gondola; 4, cutting mechanism; 5, cable; 6, release mechanism. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall into the scope of the present application.

[0022] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] The following will be described in detail by combining specific embodiments and application scenarios. Figures 1-2 , a high altitude balloon system provided by the embodiments of the present application is described in detail.

[0026] As Figure 1 and Figure 2As shown, the present application provides a high altitude balloon system, comprising: an ascending balloon 1, a cutting mechanism 4, a recovery balloon 2 and a gondola 3. The bottom of the ascending balloon 1 is connected with the bottom of the recovery balloon 2, and the recovery balloon 2 is built in the inside of the ascending balloon 1. The gondola 3 is fixedly connected with the recovery balloon 2. The gondola 3 is installed with task execution equipment. The cutting mechanism 4 is installed on the outer wall of the ascending balloon 1, and is used to cut the ascending balloon 1 when the task execution equipment is recovered. The buoyancy of the recovery balloon 2 is less than the total weight of the load of the gondola.

[0027] Specifically, as shown, Figure 1 The air inlet of the recovery balloon 2 and the air inlet of the ascending balloon 1 are fixedly connected. The recovery balloon 2 is embedded in the inside of the ascending balloon 1, and the recovery balloon 2 is located at the bottom of the ascending balloon 1. The ascending balloon 1 and the recovery balloon 2 are filled with light gas, which provides upward buoyancy for the high altitude balloon system, so that the ascending balloon 1 and the recovery balloon 2 can ascend at the same time. The ascending balloon 1 and the recovery balloon 2 can be connected by a connecting pipe.

[0028] The light gas in the ascending balloon 1 and the recovery balloon 2 can be the same or different, for example, hydrogen gas can be filled in the ascending balloon 1, helium gas can be filled in the recovery balloon 2, or hydrogen gas can be filled in both the ascending balloon 1 and the recovery balloon 2, which is not limited in the present application.

[0029] The volume of the ascending balloon 1 is much larger than the volume of the recovery balloon 2, and the light gas in the ascending balloon 1 provides the buoyancy for the ascending of the high altitude balloon system, so that the high altitude balloon system can ascend to high altitude.

[0030] As shown, Figure 1 and Figure 2 The gondola 3 is fixedly installed below the ascending balloon 1 and the recovery balloon 2, and the gondola 3 is fixedly connected with the recovery balloon 2. According to the requirements of the flight task, various task execution equipment is installed in the gondola 3, such as meteorological equipment, optical camera, laser radar, atmospheric composition analyzer, etc. The ascending balloon 1 drives the gondola 3 to float to high altitude, and the scientific tasks such as high altitude reconnaissance, geographical monitoring, resource exploration, weather monitoring, etc. are completed by the task execution equipment.

[0031] As shown, Figure 1 The cutting mechanism 4 is installed on the outer wall of the ascending balloon 1. After the completion of the flight task, the task execution equipment needs to be recovered to the ground. At this time, the cutting mechanism 4 cuts the ascending balloon 1, so that the light gas in the ascending balloon 1 is released, and the buoyancy of the high altitude balloon system is sharply reduced. The buoyancy of the recovery balloon 2 is less than the total weight of the load of the gondola 3, so that the gondola 3 can carry the task execution equipment to land on the ground. In the process of descending of the gondola 3, the recovery balloon 2 can slow down the falling speed of the gondola 3 and reduce the landing impact force of the gondola 3, thereby realizing the buffer protection of the task execution equipment in the gondola 3, improving the recovery rate of the task execution equipment, and avoiding the damage of the task execution equipment.

[0032] The high-altitude balloon system provided by the application is characterized in that: the high-altitude balloon system comprises an ascending balloon 1, a gondola 3, a recovery balloon 2 and a cutting mechanism 4; the gondola 3 is connected to the ascending balloon 1 through a connecting rope; the recovery balloon 2 is connected to the ascending balloon 1 through a connecting rope; the cutting mechanism 4 is arranged on the connecting rope between the gondola 3 and the recovery balloon 2; the gondola 3 is loaded with a task execution device; the gondola 3 is lifted to a high altitude by the ascending balloon 1 when the high-altitude balloon system is launched; the recovery balloon 2 is connected to the ascending balloon 1 and is lifted to a high altitude together with the ascending balloon 1; after the task execution device completes a flight task, the cutting mechanism 4 cuts the ascending balloon 1, and the buoyancy of the high-altitude balloon system is sharply reduced; the total weight of the gondola 3 and the task execution device is greater than the buoyancy of the recovery balloon 2, so that the gondola 3 is slowed down by the recovery balloon 2 when the gondola 3 falls by itself, and the landing impact force of the gondola 3 is reduced, thereby ensuring that the task execution device is not damaged. The high-altitude balloon system provided by the application does not need to add a parachute and an automatic parachute opening device on the connecting rope, and has a simple structure; the load borne by the ascending balloon 1 is greatly reduced, and only a small volume of the ascending balloon 1 can meet the floating requirement of the high-altitude balloon system, which is beneficial to cost saving; meanwhile, the length of the connecting rope between the ascending balloon 1 and the gondola 3 can be shortened, thereby reducing the launching difficulty of the high-altitude balloon system; the recovery balloon 2 always maintains a gas saturation state in the whole process from launching to landing, is not easily affected by environmental factors, has strong stability, and can avoid the situation that the task execution device is damaged due to the failure of the parachute unfolding; in addition, the recovery balloon 2 has high convenience in inflation and deflation, and does not need to be stacked flat after use, which is convenient to operate. The high-altitude balloon system provided by the application has fewer interference factors when the task execution device is recovered, and the recovery efficiency of the task execution device is improved.

[0033] In some embodiments, the interior of the ascending balloon 1 and the interior of the recovery balloon 2 are both filled with helium. Using helium as the inflation gas of the ascending balloon 1 and the recovery balloon 2 makes the buoyancy of the high-altitude balloon system stable and has good lift-off performance in the whole flight process. Compared with a traditional high-altitude hydrogen balloon, the safety of the high-altitude balloon system is enhanced due to the non-flammability of helium. Meanwhile, since the ascending balloon 1 and the recovery balloon 2 use the same gas, the inflation process of the high-altitude balloon system is simplified, which is helpful to improve the operability and reliability of the high-altitude balloon system.

[0034] In some embodiments, the high-altitude balloon system further comprises a controller, a GPS sensor and a height sensor. The controller, the GPS sensor and the height sensor are all fixed in the gondola 3. The controller is used in communication connection with a ground station. The GPS sensor and the height sensor are both in communication connection with the controller. The controller is in communication connection with the cutting mechanism 4.

[0035] The GPS sensor is used to monitor the geographic position of the high-altitude balloon system. The GPS sensor sends the geographic position information to the controller, and the controller determines the current position of the high-altitude balloon system based on the geographic position information of the GPS sensor. When the controller determines that the high-altitude balloon system is about to fly into the territory of another country, the controller immediately controls the cutting mechanism 4 to cut the ascending balloon 1, and under the buffering action of the recovery balloon 2, the gondola 3 carrying the load slowly descends to the ground. At the same time, the GPS sensor is used to monitor the geographic position of the high-altitude balloon system in real time, which facilitates the ground staff to quickly find the landing position of the gondola 3.

[0036] The height sensor is used to monitor and control the ascending height of the high-altitude balloon system in real time. When the high-altitude balloon system flies to the vicinity of the limit height, the controller controls the cutting mechanism 4 to cut the ascending balloon 1, so as to avoid the ascending balloon 1 from being blown up by the influence of air pressure, thereby improving the stability of the gondola 3 landing.

[0037] In some embodiments, the ascending balloon 1 is provided with an automatic pressure regulating valve. The automatic pressure regulating valve is in communication connection with the controller. The height sensor sends the ascending height information of the high-altitude balloon system to the controller, and the controller controls the opening and closing state of the automatic pressure regulating valve based on the above information to regulate the air pressure in the ascending balloon 1, so as to make the ascending balloon 1 always maintain the flight within the preset height, thereby facilitating the task execution equipment to carry out various work.

[0038] The controller and the ground station can be wirelessly connected by using a satellite communication system. When the high-altitude balloon system is in a normal flight state but the staff urgently needs to retrieve it, the controller can be sent a control instruction by the ground station, so that the controller can control the cutting mechanism 4 to perform corresponding operations based on the control instruction.

[0039] In some embodiments, the cutting mechanism 4 is an electric cutter or a heat release cutter.

[0040] When the cutting mechanism 4 is an electric cutter, the electric cutter includes a driving motor and a blade. The driving motor is fixed to the outer wall of the ascending balloon 1. The blade is made of hard alloy material, which can withstand a large cutting load and is wear-resistant. The driving motor transmits power to the blade through a transmission system to realize the rapid rotation or reciprocating motion of the blade, thereby cutting the ascending balloon 1.

[0041] In the case that the cutting mechanism 4 is a thermal release cutter, the thermal release cutter uses a high-temperature heating cutter head to achieve cutting of the ascending balloon 1 by means of thermal melting or fusing. The thermal release cutter converts electrical energy into heat energy to heat the cutter head at high temperature. When the temperature of the cutter head reaches a certain level, the cutter head can quickly melt the contact point between the ascending balloon 1 and the cutter head when the cutter head contacts the ascending balloon 1, and has high stability, avoiding the mechanical cutting method to cause the internal and external pressure difference of the ascending balloon 1 to increase sharply, thereby affecting the landing stability of the high-altitude balloon system.

[0042] In some embodiments, as shown in Figs. 1 and 2, the high-altitude balloon system further comprises a cutting mechanism 4. The cutting mechanism 4 is fixed to the bottom of the ascending balloon 1. The cutting mechanism 4 is connected with the controller in communication. The cutting mechanism 4 is used to cut the ascending balloon 1 after the ascending balloon 1 reaches the preset altitude. Figure 1 Figure 2 In some embodiments, as shown in Figs. 1 and 2, the high-altitude balloon system further comprises a cutting mechanism 4. The cutting mechanism 4 is fixed to the bottom of the ascending balloon 1. The cutting mechanism 4 is connected with the controller in communication. The cutting mechanism 4 is used to cut the ascending balloon 1 after the ascending balloon 1 reaches the preset altitude.

[0043] In some embodiments, as shown in Figs. 1 and 2, the high-altitude balloon system further comprises a cutting mechanism 4. The cutting mechanism 4 is fixed to the bottom of the ascending balloon 1. The cutting mechanism 4 is connected with the controller in communication. The cutting mechanism 4 is used to cut the ascending balloon 1 after the ascending balloon 1 reaches the preset altitude.

[0044] In some embodiments, as shown in Figs. 1 and 2, the high-altitude balloon system further comprises a cutting mechanism 4. The cutting mechanism 4 is fixed to the bottom of the ascending balloon 1. The cutting mechanism 4 is connected with the controller in communication. The cutting mechanism 4 is used to cut the ascending balloon 1 after the ascending balloon 1 reaches the preset altitude.

[0045] ​It can be understood that when the cutting mechanism 4 initially cuts the ascending balloon 1, a large amount of light gas remains in the ascending balloon 1. If the broken ascending balloon 1 is released immediately after being cut, the flight position of the recovery balloon 2 and the gondola 3 can be shaken or changed sharply due to the sharp pressure difference. The pressure difference sensor is fixed on the body of the release mechanism 6 and located in the interior of the ascending balloon 1 to monitor the pressure difference between the interior of the ascending balloon 1 and the outside in real time. The controller determines whether the pressure difference between the interior of the ascending balloon 1 and the outside is within a preset pressure difference range based on the pressure difference information of the pressure difference sensor. When the pressure difference in the ascending balloon 1 reaches the preset pressure difference, the controller sends a release instruction to the release mechanism 6 to release the broken ascending balloon 1, thereby ensuring the stability of the gondola 3 during landing, preventing the gondola 3 and the recovery balloon 2 from shaking sharply in the high altitude, and ensuring the safety of the task execution device.

[0046] The high-altitude balloon further comprises a cable 5. One end of the cable 5 is provided with a plurality of hangers. The recovery balloon 2 is provided with a plurality of hangers. The plurality of hangers are one-to-one correspondingly connected to the plurality of hangers. The other end of the cable 5 is connected to the lock hook of the gondola 3.

[0047] The plurality of hangers are arranged along the bottom of the recovery balloon 2 at equal intervals. The number of the hangers is consistent with the number of the hangers. The plurality of hangers and the plurality of hangers are one-to-one correspondingly fixedly connected to ensure that the gondola 3 can be stably suspended below the recovery balloon 2. The end of the cable 5 close to the gondola 3 is provided with a lock ring. The lock hook of the gondola 3 and the lock ring are fixedly connected, thereby realizing the fixed connection of the recovery balloon 2 and the gondola 3.

[0048] In some embodiments, the ratio of the critical volume of the ascending balloon 1 to the critical volume of the recovery balloon 2 is 30:1-50:1, to ensure the balance of the ascending balloon 1 and the recovery balloon 2 during flight. Optionally, the critical volume of the ascending balloon 1 is 50 times, 45 times, 40 times, 35 times or 30 times the critical volume of the recovery balloon 2.

[0049] Preferably, the critical volume of the ascending balloon 1 is 40 times the critical volume of the recovery balloon 2, which can ensure that the recovery balloon 2 has sufficient landing buffer force on the gondola 3, and can reduce the load of the recovery balloon 2 on the ascending balloon 1 when the ascending balloon 1 ascends, thereby ensuring the balance of the ascending balloon 1 and the recovery balloon 2 during flight.

[0050] In some embodiments, the ratio of the buoyancy of the recovery balloon 2 to the gravity of the load of the gondola 3 is 1:4-1:2, to reduce the influence of the recovery balloon 2 on the landing position of the gondola 3, ensure the controllability of the landing position of the gondola 3, avoid the extension of the flight time of the gondola 3 in the air due to the difficulty of the gondola 3 to land caused by the excessive buoyancy of the recovery balloon 2, and ensure that the recovery balloon 2 has sufficient landing buffer force on the gondola 3.

[0051] Optionally, the ratio between the buoyancy of the recovery balloon 2 and the weight of the load on the gondola 3 can be 1:4, 1:3, 1:2.5, or 1:2. Preferably, the ratio between the buoyancy of the recovery balloon 2 and the weight of the load on the gondola 3 is 1:3.

[0052] like Figure 1 As shown, the cutting mechanism 4 is installed on the top of the ascending balloon 1, that is, the cutting mechanism 4 is located at the position furthest from the ascending balloon 1 to the recovery balloon 2, so as to ensure the stability of the cutting mechanism 4 when cutting the ascending balloon 1, prevent the rapid change of the internal and external pressure difference of the ascending balloon 1 from causing the recovery balloon 2 and the gondola 3 to shake violently, thereby improving the stability of the gondola 3 when it lands.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-altitude balloon system, characterized in that, include: The system includes an ascent balloon, a cutting mechanism, a recovery balloon, and a pod. The bottom of the ascent balloon is connected to the bottom of the recovery balloon, and the recovery balloon is internally housed within the ascent balloon. The pod is fixedly connected to the recovery balloon, and a mission execution device is installed inside the pod. The cutting mechanism is installed on the outer wall of the ascent balloon and is used to cut the ascent balloon when the mission execution device is recovered. The buoyancy of the recovery balloon is less than the total weight of the load on the pod.

2. The high-altitude balloon system according to claim 1, characterized in that, Both the ascending balloon and the recovering balloon are filled with helium.

3. The high-altitude balloon system according to claim 1, characterized in that, It also includes a controller, a GPS sensor, and a height sensor. The controller, the GPS sensor, and the height sensor are all fixed inside the pod. The controller is used to communicate with the ground station. The GPS sensor and the height sensor are both communicated with the controller. The controller is also communicated with the cutting mechanism.

4. The high-altitude balloon system according to claim 3, characterized in that, The cutting mechanism is an electric cutter or a pyroelectric cutter.

5. The high-altitude balloon system according to claim 3, characterized in that, It also includes a release mechanism, which is fixed to the bottom of the recovery balloon. The recovery balloon is connected to the ascent balloon through the release mechanism. The release mechanism is communicatively connected to the controller. The release mechanism is used to separate the ruptured ascent balloon and the recovery balloon after the cutting mechanism cuts the ascent balloon.

6. The high-altitude balloon system according to claim 5, characterized in that, The release mechanism includes a differential pressure sensor, which monitors the pressure difference inside the rising balloon after the cutting mechanism cuts the rising balloon. The differential pressure sensor is communicatively connected to the controller, which controls the release mechanism to release the rising balloon when the pressure difference inside the rising balloon reaches a preset pressure difference.

7. The high-altitude balloon system according to claim 5, characterized in that, It also includes a cable, one end of which is provided with multiple slings, the recovery balloon is provided with multiple lifting lugs, the multiple slings are connected one-to-one to the multiple lifting lugs, and the other end of the cable is connected to the locking hook of the pod.

8. The high-altitude balloon system according to claim 1, characterized in that, The ratio of the critical volume of the ascending balloon to the critical volume of the recovering balloon is 30:1 to 50:

1.

9. The high-altitude balloon system according to claim 1, characterized in that, The ratio of the buoyancy of the recovery balloon to the total weight of the gondola and the mission execution equipment is 1:4 to 1:

2.

10. The high-altitude balloon system according to claim 1, characterized in that, The cutting mechanism is mounted on top of the rising balloon.

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