Automatic floating recovery device for fault cabin section of deep sea suspension data center

Abstract

The invention relates to an autonomous floating recovery device for a fault cabin section of a deep-sea suspension data center, and belongs to the technical field of deep-sea engineering. Aiming at the problems of low efficiency and poor safety caused by dependence on external fishing equipment in the prior art, a solution consisting of a buoyancy generating device, a buoyancy control system, a floating safety guarantee device and an anchoring and cutting device is provided. The buoyancy generating device generates uniform buoyancy through cooperation of a chemical reaction type gas generator and the multiple compression air bags. The buoyancy control system regulates and controls the gas release rate in real time based on depth and attitude sensor data; a staged floating mechanism is combined with a buffering air bag to control the speed and prevent collision; the anchoring cutting-off device cuts off the anchor cable to achieve cabin separation. Autonomous and rapid floating recovery of the fault cabin section is achieved, efficiency and safety are remarkably improved, and the device adapts to the complex marine environment.

Description

Technical Field

[0001] The invention belongs to the technical field of deep sea engineering and relates to an autonomous floating recovery device for a faulty compartment of a deep sea suspended data center. Background Art

[0002] In order to meet the huge demand for data storage and processing capabilities, deep-sea suspended data centers have emerged as a new type of data storage solution. It takes advantage of the low temperature, high pressure and relatively stable environment of the deep sea, providing unique advantages for the operation of data centers, such as reducing cooling costs and improving data security. However, the operating environment of deep-sea suspended data centers also brings many challenges, the most critical of which is the recovery of faulty compartments. Once a fault occurs, how to quickly and safely recover the faulty compartment to the sea surface for repair or replacement is a technical problem that needs to be solved urgently.

[0003] At present, the traditional deep-sea equipment recovery method mainly relies on external salvage equipment. This method has many disadvantages, such as the scheduling and operation of salvage equipment consumes a lot of time and manpower, it is difficult to ensure efficiency and safety in harsh marine environments, and it has limited applicability for large and complex equipment. A deep-sea equipment salvage device (patent number: CN202022344569.3) uses a salvage ship equipped with a powerful lifting capacity to grab or lift the equipment sunk in the deep sea with tools such as steel cables and grabs. A special salvage ship is required, and the scheduling of the salvage ship involves multiple links and departments, which is difficult to coordinate and time-consuming. In harsh marine environments, such as strong winds, huge waves, strong currents, etc., it is difficult for the salvage ship to operate stably, the salvage work may be forced to be interrupted, and safety cannot be guaranteed. In addition, for deep-sea equipment that is large in size and extremely heavy in weight, the lifting capacity of the salvage ship is limited, making it difficult to complete the recovery task.

[0004] In view of this, in order to solve the problem of recovering the faulty compartment of a deep-sea suspended data center and improve the recovery efficiency and safety, a conceptual concept of an autonomous floating recovery device for the faulty compartment of a deep-sea suspended data center was proposed. The device aims to overcome the limitations of existing technologies through the optimized design of the buoyancy generating device, the buoyancy control system and the safety assurance measures for the floating process, meet the potential needs of the future development of deep-sea suspended data center projects, and provide technical ideas for the development of the deep-sea information technology industry. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide an autonomous floating recovery device for a faulty compartment of a deep-sea suspended data center, aiming to solve the problems of slow buoyancy adjustment speed, low precision, slow response and lack of redundant design in the prior art. Through an efficient buoyancy adjustment system and modular design, the data center can be stably suspended and safely operated in a complex marine environment.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An autonomous floating recovery device for a faulty section of a deep - sea suspended data center, comprising:

[0008] A cabin body 1, a buoyancy generating device, a buoyancy control system, a floating safety guarantee device, and an anchoring cutting device;

[0009] The buoyancy generating device includes at least one chemical reaction - type gas generator 3 and a plurality of compressed air bags 5. The gas generator 3 is connected to the compressed air bags 5 through pipelines and is used to inject gas into the air bags to adjust the buoyancy of the cabin body;

[0010] The buoyancy control system includes a control center 7, a depth sensor 9, and an attitude sensor 10. The control center 7 receives sensor data and controls the operation of the gas generator 3 and the compressed air bags 5;

[0011] The floating safety guarantee device includes a staged floating control module and a buffer air bag 8. The staged floating control module realizes the staged floating of the cabin body by gradually releasing gas, and the buffer air bag 8 is arranged outside the cabin body to reduce the collision impact;

[0012] The anchoring cutting device includes a cable 2, an anchoring device 6, and a cable cutting device 13. The anchoring device 6 fixes the cabin body 1 to the seabed base by mechanical locking or electromagnetic adsorption. The cable 2 connects the anchoring device 6 and the cabin body 1, and the cable cutting device 13 is used to cut the cable 2 to release the fixed connection between the cabin body and the seabed.

[0013] Furthermore, the staged floating control module includes:

[0014] A first - stage buoyancy generating unit, which is used to release initial gas after the cabin body breaks away from the anchor, so that the cabin body floats to a preset depth at a first speed;

[0015] A second - stage buoyancy generating unit, which is used to release additional gas after reaching the preset depth, so that the cabin body accelerates to float at a second speed;

[0016] Wherein, the second speed is greater than the first speed.

[0017] Furthermore, the buoyancy generating device adopts a redundant design, including:

[0018] At least two groups of independent gas generators 3 and compressed air bags 5, and each group is equipped with an independent gas delivery pipeline and a safety valve 4;

[0019] The control center 7 switches to a standby gas generator or compressed air bag according to the sensor data.

[0020] Further, the buffer airbag 8 is made of a flexible material, distributed at the bottom and side of the cabin, and its expansion volume satisfies the following relationship:

[0021]

[0022] Wherein, V is the expansion volume of the airbag, H is the current depth of the cabin, and k is the depth compensation coefficient.

[0023] Further, the depth sensor 9 includes a pressure sensor and a sonar positioning module, and the attitude sensor 10 includes a three-axis gyroscope and an accelerometer.

[0024] Further, a protective cover 11 is provided outside the cabin 1, and the protective cover 11 is a mesh structure, covering the outer surfaces of the buffer airbag 8 and the compression airbag 5.

[0025] Further, the cable anchor cutting device 13 adopts an electric control hydraulic cutter or a chemical corrosion type cutter, and its triggering conditions include at least one of the following:

[0026] Receiving a cutting instruction from the control center 7;

[0027] Detecting that the buoyancy of the cabin is abnormally exceeded the threshold.

[0028] Further, the control center 7 is connected to the sea surface recovery platform through the communication interface 12, and the communication interface 12 supports underwater acoustic communication and satellite positioning signal transmission.

[0029] Further, the arrangement of the compression airbag 5 satisfies the following conditions:

[0030] The gas release ports of each airbag form an angle of 30° to 60° with the axis of the cabin, and are symmetrically distributed at both ends of the cabin.

[0031] Further, the gas release rate of the safety valve 4 is dynamically adjusted according to the real-time depth and attitude data, and its control logic is:

[0032] When the attitude inclination angle θ of the cabin > 10°, reduce the gas release amount of the airbag on the inclined side;

[0033] When the upward floating speed v > v max 0, trigger the emergency current limiting of the safety valve.

[0034] The beneficial effects of the present invention are as follows:

[0035] (1) Through the synergistic effect of the chemical reaction type gas generator and multiple compression airbags, a sufficient amount of gas can be generated in a very short time after the fault is triggered, significantly shortening the upward floating response time of the cabin section; the decentralized airbag layout combined with the real-time feedback of the depth and attitude sensors ensures uniform buoyancy distribution, avoids the inclination or rolling of the cabin, and improves the upward floating stability.

[0036] (2) The redundant gas generator and airbag module can automatically switch to the backup system when a single component fails, ensuring the continuity of buoyancy supply; the staged floating mechanism dynamically adjusts the buoyancy increment by gradually releasing gas, effectively suppressing the stress overload of the cabin structure caused by sudden buoyancy changes and reducing the risk of equipment damage.

[0037] (3) The double-layer protection structure of the flexible buffer airbag and protective cover outside the cabin can absorb the impact energy of the seabed obstacles or ocean currents during the floating process; the staged speed control further reduces the sudden change of fluid resistance caused by high-speed floating, avoiding the failure of the sensors or interfaces on the cabin surface due to external impact.

[0038] (4) The closed-loop control system based on multi-sensor fusion can analyze the cabin attitude and ocean environment data in real time, dynamically adjust the gas release rate and direction, realize the adaptive floating path correction under complex sea conditions, and reduce the need for manual intervention.

[0039] (5) The integrated design of the cable cutting device and communication interface enables the cabin to send positioning signals to the sea surface platform synchronously while detaching from the seabed anchoring point, significantly shortening the sea search time for the faulty cabin section; the modular structure design is compatible with deep-sea data centers of different scales and has strong scalability.

[0040] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in preferred detail below in conjunction with the drawings, where:

[0042] Figure 1 is the overall structure schematic diagram of the device of the present invention;

[0043] Figure 2 is the schematic diagram of the floating process control principle of the device of the present invention;

[0044] Figure 3 is the schematic diagram of sea surface positioning and recovery of the device of the present invention;

[0045] Reference numerals: 1 - cabin, 2 - cable, 3 - gas generator, 4 - safety valve, 5 - compression airbag, 6 - anchoring device, 7 - control center, 8 - buffer airbag, 9 - depth sensor, 10 - attitude sensor, 11 - protective cover, 12 - communication interface, 13 - cable cutting device. DETAILED DESCRIPTION OF THE INVENTION

[0046] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present invention. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0047] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation to the present invention; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which does not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0048] In the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0049] The autonomous buoyancy recovery device for the faulty section of a deep - sea floating data center includes a buoyancy generation device, a buoyancy control system, a safety guarantee mechanism for the floating process, a control system, a fault - switching mechanism, and operation monitoring. Adopting the above - mentioned solution and combining the synergistic effect of the device, the autonomous buoyancy recovery of the faulty section of the deep - sea floating data center is realized, ensuring the stable operation and safe recovery of the data center. The working principle of the present invention is as follows: An efficient gas generator and a large - capacity compressed airbag are adopted, combined with redundant design, to ensure that the faulty section of the deep - sea floating data center can float quickly and safely. It mainly includes: First, a chemical - reaction - type gas generator quickly generates a large amount of gas, and the gas is evenly released through multiple compressed airbags arranged at different positions of the cabin section to increase the buoyancy of the cabin section. At the same time, high - precision depth and attitude sensors continuously monitor the depth and attitude of the cabin section, providing accurate data for the control system to adjust the gas release rate and direction, control the floating speed and attitude of the cabin section, and ensure the smoothness of the floating process. The setting of the safety valve prevents the floating speed from being too fast caused by the rapid release of gas, avoiding damage to the cabin section structure. In addition, the staged floating mechanism and the external collision - protection device further guarantee the safety of the floating process, preventing collisions with the seabed or other objects. When a fault occurs in the cabin section, the control system automatically triggers the floating - recovery program, adjusts the floating strategy in real - time according to the sensor data, ensures that the cabin section floats safely and stably to the sea surface, and prevents collisions with sea - surface objects through the collision - protection device after reaching the sea surface, completing the recovery of the faulty section. This process not only improves the reliability and safety of the data center but also ensures its stable operation in a complex marine environment.

[0050] Please refer to Figures 1 to 3 , in the autonomous buoyancy recovery device for the faulty section of the deep - sea floating data center mentioned in this embodiment, the chemical - reaction - type gas generator 3 in the buoyancy generation device is installed in the middle position inside the cabin body 1, which is used to quickly generate a large amount of gas. Starting from the gas generator, several curved pipes are connected to different positions at the bottom of the cabin body, and these pipes are connected to multiple oval buffer airbags 8 scattered at the bottom of the cabin body 1 and the compressed airbags 5 at both ends of the cabin body 1.

[0051] The anchoring device 6 is connected to the seabed base through a mechanical lock to ensure the stable initial positioning of the cabin body 1.

[0052] The anchoring device 6 includes: a base - locking module, which adopts a titanium - alloy claw structure driven by hydraulic pressure and is used to bite the preset interface of the seabed base;

[0053] a redundant unlocking unit, which includes at least two groups of independently controlled electromagnetic unlockers and is used to release the cabin body 1 after cutting the cable 2.

[0054] The control center 7 is installed on one side inside the cabin body, represented by a small box with a display screen and buttons, which is capable of processing sensor data and controlling the operation of the gas generator 3 and the compression airbag 5, and is connected to the communication interface 12 of the data center simultaneously to achieve data transmission and control.

[0055] Depth sensors 9 and attitude sensors 10 for monitoring the depth and attitude changes of the cabin section are installed at different positions inside the cabin body 1 and at the end of the buffer airbag, which respectively monitor the depth and attitude changes of the cabin section.

[0056] The mesh structure outside the cabin body is a protective cover 11 for preventing collisions.

[0057] Finally, a communication interface 12 for data transmission and receiving control instructions is installed on the top or side of the cabin body 1.

[0058] Several safety valves 4 for controlling the gas release speed are drawn at appropriate positions on the pipeline to provide uniform buoyancy and prevent the gas from being released too quickly.

[0059] The mooring cable 2 is installed at the bottom of the cabin section 1 and connected to the seabed fixed point for fixing the position of the cabin section.

[0060] The reasonable arrangement and coordinated action of these structures ensure that the failed cabin section of the deep - sea suspended data center can float and be recovered quickly, safely and stably.

[0061] Specifically, the present invention realizes buoyancy adjustment through the collaborative work of the chemical reaction type gas generator 3 and the compression airbag 5. The gas generator 3 can quickly generate a large amount of gas, and the generated gas is transported through the pipeline to multiple oval compression airbags 5 distributed dispersedly at the end of the cabin body 1, causing the airbags to expand, thereby increasing the buoyancy of the cabin section 1. When it is necessary to reduce the buoyancy, the control center 7 adjusts the gas release of the compression airbag 5, causing the airbag to contract and the buoyancy to decrease accordingly. The arrangement position and quantity of the airbags are carefully designed to ensure uniform distribution of buoyancy and avoid unstable attitude of the cabin section.

[0062] The present invention realizes efficient buoyancy generation. The gas generator 3 reacts rapidly and can meet the requirements of rapid upward floating. Moreover, through the dispersed arrangement of multiple airbags 5, the buoyancy can be evenly distributed, thus avoiding the situation of unstable attitude of the cabin section 1. The intelligent control system uses the depth sensor 9 and the attitude sensor 10 to monitor the data in real time, and the control center 7 conducts intelligent regulation accordingly, realizing the precise adjustment of buoyancy. The staged upward floating mechanism controls the upward floating speed by gradually increasing the buoyancy to prevent structural damage. The collision protection devices such as the buffer airbag 8 and the protective cover 11 provide additional protection for the cabin section. This device ensures the stable and safe recovery of the cabin section in a complex marine environment through rapid upward floating, stable suspension, safe recovery, real-time monitoring and regulation, and remote communication. The following introduces the specific operation steps of the autonomous upward floating and recovery device for the faulty cabin section of the deep-sea suspension data center:

[0063] Step 1: Install and calibrate the depth 9 and attitude sensors 10 to ensure that they can accurately monitor the depth and attitude changes of the cabin section 1. At the same time, check the normal working status of the buoyancy generation device (including the chemical reaction type gas generator 3 and the compressed airbag 5) and the control system 9 to ensure that all devices are in good operating conditions. In addition, it is also necessary to ensure that the collision protection devices (such as the buffer airbag 8 and the protective cover 11) are installed in place and can work properly.

[0064] Step 2: Simulate the failure of the cabin section 1 through the control system to trigger the autonomous upward floating and recovery program. During this process, it is necessary to ensure that the control system can correctly identify the fault information and start the upward floating and recovery program according to the preset control strategy.

[0065] Step 3: Start the cable anchor release mechanism and use the cable anchor cutting device to cut off the restraint of the cable anchor 2 on the cabin section, so that the cabin section 1 is separated from the seabed fixed point to prepare for upward floating.

[0066] Step 4: Start the buoyancy generation device and adjust the gas release rate and direction in real time according to the sensor data. Control the gas release speed through the safety valve 4 to ensure the stable upward floating of the cabin section 1. During this process, it is necessary to closely monitor the depth 9 and attitude changes of the cabin section 1 to ensure the smoothness of the upward floating process.

[0067] Step 5: Monitor the depth and attitude of the cabin section 1. When necessary, adjust the upward floating strategy through the control system. For example, if the attitude of the cabin section is unstable, it can be corrected by adjusting the direction and rate of gas release.

[0068] Step 6: Start the collision protection device to prevent the cabin section 1 from colliding with the seabed or other objects during the upward floating process. When the cabin section 1 is approaching the sea surface, it is also necessary to ensure that the buffer airbag 8 can effectively reduce the collision with the sea surface objects.

[0069] Step 7: When the compartment 1 floats safely to the sea surface, the recovery completion information is transmitted back to the data center through the communication interface 12 for subsequent maintenance or replacement operations.

[0070] Embodiment 1: Staged floating control and buoyancy generation system

[0071] Workflow:

[0072] 1. When a fault occurs in a compartment, the control center receives a fault signal and triggers the anchor cable cutting device to electrolytically disconnect the anchor cable connection;

[0073] 2. The depth sensor detects that the current depth is 3,000 meters, and the control center starts the first stage of buoyancy generation: the gas generator ignites the solid gas generating agent, releasing gas to two compressed air bags, which expand to make the cabin float up at a speed of 0.5 meters per second;

[0074] 3. When the depth sensor detects that the cabin has risen to 1,500 meters, the control center starts the second stage of buoyancy generation: three additional compressed air bags are activated, the gas release volume is increased to twice the initial value, and the cabin accelerates to 1.2 meters per second;

[0075] 4. The attitude sensor detects that the cabin tilt angle reaches 8 degrees, and the control center closes the safety valve of the tilted side airbag to reduce the gas release on that side and restore the cabin to a horizontal attitude;

[0076] 5. When the cabin approaches the sea surface, the cushioning airbag is inflated, the protective cover blocks the collision of floating objects, and the communication interface sends the GPS coordinates to the recovery ship to complete the recovery.

[0077] Example 2: Redundant gas generator and fault switching mechanism

[0078] Workflow:

[0079] 1. The main gas generator failed due to seawater infiltration, and the control center detected a 50% drop in gas generation through the pressure sensor;

[0080] 2. The system automatically switches to the backup gas generator, starts the titanium alloy sealing diaphragm to isolate the faulty unit, and the backup generator ignites the gas generating agent;

[0081] 3. The spare compressed air bags are inflated in three groups in sequence, with an interval of 10 seconds between each group to avoid cabin vibration caused by sudden changes in buoyancy;

[0082] 4. The depth sensor monitors the buoyancy speed and stabilizes it at 0.8 m / s. The control center dynamically adjusts the safety valve opening of the backup airbag to make the standard deviation of the buoyancy distribution less than 5%;

[0083] 5. Send fault codes and backup system status to the surface monitoring center through the communication interface throughout the process to guide the adjustment of the recovery plan.

[0084] Example 3: Collision Protection and Adaptive Buffer Mechanism

[0085] Workflow:

[0086] 1. When the cabin floats up to 800 meters, the sonar detects an abandoned drilling platform obstacle 20 meters above;

[0087] 2. The control center activates the emergency collision avoidance mode: pauses gas release, starts asymmetric inflation of the lateral buffer airbags, and the cabin shifts 15 meters to the right to bypass the obstacle;

[0088] 3. The gyroscope detects a 3-degree roll angle caused by the cabin offset, and the control center injects high-pressure gas into the left buffer airbag to generate a counter torque to correct the attitude;

[0089] 4. The carbon fiber grid of the protective cover intercepts the debris of the obstacle, and after being impacted, the buffer airbag quickly contracts and then expands through the pressure relief valve to absorb the impact energy;

[0090] 5. After leaving the collision area, the system resumes the phased floating process, and the communication interface records the collision avoidance trajectory for subsequent analysis.

[0091] Example 4: Sea Surface Recovery and Positioning Coordination System

[0092] Workflow:

[0093] 1. The moment the cabin emerges from the sea surface, the waterproof seal cover pops open, the telescopic signal mast rises, and the satellite communication antenna and Beidou positioning module are deployed;

[0094] 2. The communication interface simultaneously transmits a 121.5 MHz aviation emergency frequency signal and a UHF short message, and the recovery ship locks the target within a range of 1 nautical mile through triangulation;

[0095] 3. The buffer airbag switches to the floating mode, and the internal compartment is filled with lightweight foam to reduce the draft depth of the cabin to 0.3 meters for easy capture by the salvage net;

[0096] 4. When the recovery ship approaches, the control center receives a wireless command and starts the airbag exhaust program, increasing the self-weight of the cabin to a stable salvage state;

[0097] 5. After the salvage is completed, the self-destruction device is activated to destroy the sensitive data storage module, and the protective cover automatically falls off and enters the sea sinking mode.

[0098] 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 preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An autonomous floating recovery device for a failed cabin section of a deep-sea floating data center, characterized in that: It includes: a cabin (1), a buoyancy generation device, a buoyancy control system, an upward floating safety protection device, and an anchoring cutting device; the buoyancy generation device includes at least one chemical reaction type gas generator (3) and a plurality of compressed air bags (5), the gas generator (3) is connected to the compressed air bags (5) through pipelines, and is used for injecting gas into the air bags to adjust the buoyancy of the cabin; the buoyancy control system includes a control center (7), a depth sensor (9), and an attitude sensor (10), the control center (7) receives sensor data and controls the operation of the gas generator (3) and the compressed air bags (5); the upward floating safety protection device includes a staged upward floating control module and a buffer air bag (8), the staged upward floating control module realizes the staged upward floating of the cabin by gradually releasing gas, and the buffer air bag (8) is arranged outside the cabin to reduce collision impact; the anchoring cutting device includes a cable (2), an anchoring device (6), and a cable cutting device (13), the anchoring device (6) fixes the cabin (1) to the seabed base by means of a mechanical lock or electromagnetic adsorption, the cable (2) connects the anchoring device (6) and the cabin (1), and the cable cutting device (13) is used for cutting the cable (2) to release the fixed connection between the cabin and the seabed.

2. The autonomous floating recovery device for the failed cabin section of the deep - sea suspended data center according to claim 1, wherein: The staged upward floating control module includes: a first-stage buoyancy generation unit, which is used for releasing initial gas after the cabin is disengaged from the anchor, so that the cabin floats upward to a preset depth at a first speed; a second-stage buoyancy generation unit, which is used for releasing additional gas after reaching the preset depth, so that the cabin accelerates upward at a second speed; wherein, the second speed is greater than the first speed.

3. The autonomous floating recovery device for the failed cabin section of the deep-sea suspended data center according to claim 1, wherein: The buoyancy generation device adopts a redundant design, including: at least two groups of independent gas generators (3) and compressed air bags (5), each group is equipped with an independent gas delivery pipeline and a safety valve (4); the control center (7) switches to a standby gas generator or compressed air bag according to sensor data.

4. The autonomous floating recovery device for the failed cabin section of the deep-sea suspended data center according to claim 1, wherein: The buffer air bag (8) is made of a flexible material, distributed at the bottom and side of the cabin, and its expansion volume satisfies the following relationship: where V is the expansion volume of the air bag, H is the current depth of the cabin, and k is the depth compensation coefficient.

5. The autonomous floating recovery device for the failed cabin section of the deep-sea suspended data center according to claim 1, characterized in that: The depth sensor (9) includes a pressure sensor and a sonar positioning module, and the attitude sensor (10) includes a three-axis gyroscope and an accelerometer.

6. The autonomous floating recovery device for the faulty cabin section of the deep-sea suspended data center according to claim 1, characterized in that: A protective cover (11) is arranged outside the cabin (1), and the protective cover (11) is a mesh structure, covering the outer surfaces of the buffer air bag (8) and the compressed air bags (5).

7. The autonomous floating recovery device for the failed cabin section of the deep-sea suspended data center according to claim 1, characterized in that: The cable cutting device (13) adopts an electric control hydraulic cutter or a chemical corrosion type cutter, and its triggering conditions include at least one of the following: receiving a cutting instruction from the control center (7); detecting that the buoyancy of the cabin is abnormally exceeded the threshold.

8. The autonomous floating recovery device for the failed cabin section of the deep-sea suspended data center according to claim 1, wherein: The control center (7) is connected to the sea surface recovery platform through a communication interface (12), and the communication interface (12) supports underwater acoustic communication and satellite positioning signal transmission.

9. The autonomous floating recovery device for the failed cabin section of the deep-sea suspended data center according to claim 1, wherein: The arrangement of the compressed air bags (5) satisfies the following conditions: the gas release port directions of each air bag form an angle of 30° to 60° with the cabin axis, and are symmetrically distributed at both ends of the cabin.

10. The deep-sea suspended data center faulty cabin section autonomous floating recovery device according to claim 1, characterized in that: The gas release rate of the safety valve (4) is dynamically adjusted according to real-time depth and attitude data, and its control logic is as follows: When the inclination angle θ of the cabin attitude > 10°, reduce the gas release amount of the airbag on the inclined side; When the floating speed v > v max , the safety valve is triggered to limit the flow urgently.

Images