Air-sea interface drifting buoy capable of detecting out-of-water state of buoy

By integrating the off-water sensor module and control module on the drifting float at the sea air interface, real-time detection of the off-water state of the float and independent risk avoidance is achieved, the problem of the lack of off-water state detection of the existing float is solved, and the intelligence and safety of the float is improved.

CN120207512APending Publication Date: 2025-06-27ZNPL OCEAN DETECTION SYST ENG
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Patent Information

Application Number
CN202510334765.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-06-27

AI Technical Summary

Technical Problem

The existing drifting floats on the sea air interface lack the function of detecting the off-water state, and cannot monitor the operating status of the floats in real time, resulting in the inability to prevent the floats from being maliciously salvaged or analyzing the pattern of stranding.

Method used

A sea-air interface drift float including a water environment parameter collection module, floating body, control module, power module, off-water sensor module, underwater environment parameter sensor module and underwater counterweight module was designed. The off-water sensor module was used to determine whether the float was off water by changing the resistance value, and independently avoided hazards through the control module and micro-power module.

Benefits of technology

Real-time detection of the floating flag off the water state and independent risk avoidance are realized, the intelligent function of the floating flag is improved, the safety and reliability of the floating flag is ensured, and malicious salvage can be effectively prevented and the placement and operation of the floating flag is optimized.

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Abstract

The invention discloses an air-sea interface drifting buoy capable of detecting the out-of-water state of the buoy. The air-sea interface drifting buoy comprises an overwater environment parameter acquisition module, a floating body, a control module, a power supply module, an out-of-water sensor module, an underwater environment parameter sensor module and an underwater counterweight module, the overwater environment parameter acquisition module is fixed above the floating body and sends acquired data to the land center data station; the floating body provides installation space for each module, the off-water sensor module and the underwater environment parameter sensor module are located at the bottom of the floating body, and the underwater counterweight module is fixed below the floating body and located on the peripheries of the off-water sensor module and the underwater environment parameter sensor module; the control module collects environmental parameters detected by the underwater environmental parameter sensor module, processes the environmental parameters and sends the environmental parameters to the land center data station; the power supply module supplies power to each module; the water leaving sensor module is used for detecting whether the buoy is in water or not. A user can master the running state of the buoy in real time, and the intelligent function of the buoy is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of ocean engineering, and particularly relates to an air-sea interface drifting buoy capable of detecting the water-off state of the buoy. Background Art

[0002] An air-sea interface drifting buoy is a type of buoy that drifts with ocean currents after being deployed. Compared with ordinary drifting buoys, the air-sea interface drifting buoy can detect more ocean environmental observation elements, especially the air-sea interface ocean environmental elements such as air temperature, sea surface skin temperature, air pressure, wind speed, wind direction, humidity, etc. It can be used in fields such as scientific research, ocean disaster prevention and mitigation; in addition, it also has important significance for national defense security. Nowadays, air-sea interface drifting buoys are increasingly applied to the field of ocean observation.

[0003] Intelligence is the general trend in the development of current air-sea interface drifting buoys. Among them, the ability to detect the water-off state of the buoy and the buoy's autonomous response is an important indicator for evaluating the intelligence of the buoy.

[0004] Currently, the buoys on the market generally do not support the detection of the water-off state. Having the water-off state detection can enable real-time monitoring of the buoy's operating status, prevent the buoy from being maliciously salvaged, and analyze the grounding rules of the buoy; in addition, during the deployment of the buoy, the water-off state detection function can also effectively guide the deployment work of the buoy. The water-off state information of the buoy is of great significance to both users and buoy developers. Summary of the Invention

[0005] In view of this, the present invention provides an air-sea interface drifting buoy capable of detecting the water-off state of the buoy, which can enable users to real-time monitor the operating status of the buoy and improve the intelligent function of the buoy.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An air-sea interface drifting buoy capable of detecting the water-off state of the buoy includes an above-water environmental parameter acquisition module, a buoy body, a control module, a power supply module, a water-off sensor module, an underwater environmental parameter sensor module, and an underwater counterweight module;

[0008] The above-mentioned water environment parameter acquisition module is fixed above the floating body and sends the collected data to the land central data station; the floating body provides installation space for the control module, power module, out-of-water sensor module, and underwater environment parameter sensor module. The out-of-water sensor module and the underwater environment parameter sensor module are located at the bottom of the floating body, and the underwater counterweight module is fixed below the floating body and is located outside the out-of-water sensor module and the underwater environment parameter sensor module; the control module collects the environmental parameters detected by the underwater environment parameter sensor module, processes them, and sends them to the land central data station; the power module supplies power to the water environment parameter acquisition module, control module, out-of-water sensor module, and underwater environment parameter sensor module; the out-of-water sensor module is used to detect whether the buoy is in the water.

[0009] Further, the control module is integrated with a power management circuit to manage the power consumption of the power module to achieve power distribution; the control module is built-in with an attitude sensor and an electronic compass, which can offset the influence of its own swaying in the water through algorithms and sense its own direction at the same time.

[0010] Further, the water environment parameter acquisition module includes a meteorological sensor, a support rod, a main power switch, an upper cover circuit module, a satellite communication module, and a buoy upper cover;

[0011] The meteorological sensor is arranged at the top of the support rod, and the bottom of the support rod extends into the floating body and is matched with its shaft hole for positioning; the buoy upper cover is sleeved on the lower part of the support rod and is used for sealing connection with the upper end of the floating body; the main power switch, the upper cover circuit module, and the satellite communication module are all arranged on the buoy upper cover. The main power switch is used to control the startup and shutdown of the buoy; the upper cover circuit module is used to collect the data information transmitted back by the meteorological sensor, perform data encoding and encryption, and send it to the land central data station through the satellite communication module; the satellite communication module provides the buoy with its own position and time information.

[0012] Further, the out-of-water sensor module includes a circuit loop composed of two electrodes. The resistance value of the two electrodes in water is less than the resistance value of the two electrodes in air. Whether the buoy is out of water is judged according to the change of the resistance value; there are two or more groups of the circuit loops.

[0013] Further, there are two groups of the circuit loops. The two electrodes in each group of circuit loops are opposite in position, and the connection lines of the two electrodes of the two groups of circuit loops form a "cross" shape.

[0014] Further, the electrodes include power module fastening bolts, studs, and bottom embedded nuts;

[0015] The stud is made of conductive metal and is screwed onto the bottom embedded nut. The power module fastening bolt fixes the power module onto the stud and is firmly fixed to the float through the bottom embedded nut. A wire terminal is installed on the power module fastening bolt and is connected to the control module through a wire.

[0016] The bottom embedded nut is integrally formed with the floating body through a rotational molding embedding process.

[0017] Furthermore, the underwater counterweight module includes a bottom bracket, a counterweight block and a counterweight chain;

[0018] The bottom bracket is hollowed out on the surface, the counterweight block is arranged on the bottom surface of the bottom bracket, and the counterweight chain is arranged on the bottom of the counterweight block; an interface is arranged at the end of the counterweight chain for installing a water sail.

[0019] Furthermore, the power module includes a solar panel, a lithium battery pack and a power protection circuit;

[0020] The solar panel is installed on the floating body, and the lithium battery pack is a battery pack composed of ternary lithium batteries. The solar panel is used to charge the lithium battery pack; the power management circuit calculates the power consumption and configures the charging power of the solar panel and the battery capacity; the lithium battery pack is integrated with a power protection circuit.

[0021] Furthermore, it also includes a micro-power module, which includes two DC motors, which are placed on both sides of the float and controlled by the control module. By controlling the two DC motors to output the same power or different powers, the buoy can move straight or turn in the water.

[0022] Furthermore, when multiple buoys are in a networking state, if a buoy is out of water and is judged to be malicious salvage, the land-based central data station will issue an alarm message; the remaining buoys in the same sea area will judge whether they are in a threatened state based on the direction and distance of the water flow; if it is determined to be in a dangerous state, the buoy will plan the best avoidance route by itself and activate the micro-power module to stay away from the dangerous sea area.

[0023] Beneficial effects:

[0024] 1. The buoy of the present invention is equipped with a water-leaving sensor module to detect whether the buoy is in water, thereby helping the user to grasp the operating status of the buoy in real time and improving the intelligent function of the buoy.

[0025] 2. The control module of the present invention is integrated with a power management circuit, which manages the power consumption of the power module to realize power distribution. The power module can realize long-term and stable power supply for the buoy equipment; secondly, the control module of the present invention is built-in with an attitude sensor and an electronic compass, which can offset the impact of its own swaying in the water through an algorithm, and sense its own direction at the same time, so as to facilitate the buoy to plan the route after networking.

[0026] 3. In the present invention, the upper cover of the buoy is hermetically connected to the upper end of the floating body, forming a watertight chamber inside the buoy to generate buoyancy, while ensuring the dryness and good working environment of the devices inside the floating body.

[0027] 4. The present invention uses the circuit loop composed of electrodes as a water departure sensor. Based on the conductivity difference between water and air, it can quickly judge the water departure state, achieve high-sensitivity state switching without complex algorithms, has a short response time, does not require an external excitation power supply, and has extremely low power consumption. Moreover, the structure is simple, without complex mechanical components, has a low failure rate, and low maintenance costs.

[0028] 5. The circuit loop of the present invention has two groups. The two electrode connections of the two circuit loops form a "cross" shape, which can ensure that when the buoy shakes violently under severe sea conditions, when any one of the circuit loops leaves the water surface, there is still one circuit loop in the water, reducing the judgment error of the buoy's water departure state.

[0029] 6. When the buoys of the present invention are networked, through the collaborative early warning and autonomous risk avoidance mechanism, the safety, reliability, and efficiency of the ocean monitoring system can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 is a schematic diagram of the structure of the water environment parameter acquisition module;

[0032] Figure 3 is a schematic diagram of the main body structure of the buoy;

[0033] Figure 4 is a schematic diagram of the structure of the underwater counterweight module;

[0034] Figure 5 is a detailed sectional view of the water departure sensor module;

[0035] Figure 6 is a schematic diagram of the installation position of the water departure sensor electrodes.

[0036] Among them, 1 - water environment parameter acquisition module, 2 - buoy main body, 3 - underwater counterweight module;

[0037] 11 - meteorological sensor, 12 - support rod, 13 - main power switch, 14 - upper cover circuit module, 15 - satellite communication module, 16 - buoy upper cover;

[0038] 21 - floating body, 22 - control module, 23 - power module, 24 - water departure sensor module, 25 - micro power module, 26 - water temperature sensor, 27 - salinity sensor;

[0039] 31 - bottom bracket, 32 - counterweight block, 33 - counterweight chain;

[0040] 241 - Power module fastening bolt, 242 - Stud, 243 - Embedded nut at the bottom. Specific implementation mode

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and by way of examples.

[0042] The present invention provides an air - sea interface drifting buoy capable of detecting the water - leaving state of the buoy, as Figure 1 shown, including an above - water environmental parameter acquisition module 1, a floating body 21, a control module 22, a power module 23, a water - leaving sensor module 24, an underwater environmental parameter sensor module, and an underwater counterweight module 3.

[0043] The above - water environmental parameter acquisition module 1 is fixed above the floating body 21 and sends the collected data to the land - based central data station; the floating body 21 provides an installation space for the control module 22, the power module 23, the water - leaving sensor module 24, and the underwater environmental parameter sensor module. The water - leaving sensor module 24 and the underwater environmental parameter sensor module are located at the bottom of the floating body 21. The underwater counterweight module 3 is fixed below the floating body 21 and encloses the water - leaving sensor module 24 and the underwater environmental parameter sensor module, and water flow can pass through. The control module 22 collects the environmental parameters detected by the underwater environmental parameter sensor module, processes them, and sends them to the land - based central data station; the power module 23 supplies power to the above - water environmental parameter acquisition module 1, the control module 22, the water - leaving sensor module 24, and the underwater environmental parameter sensor module; the water - leaving sensor module 24 is used to detect whether the buoy is in water.

[0044] Specifically, as Figure 2 shown, the above - water environmental parameter acquisition module 1 includes a meteorological sensor 11, a support rod 12, a main power switch 13, an upper - cover circuit module 14, a satellite communication module 15, and a buoy upper cover 16.

[0045] The meteorological sensor 11 is arranged at the top of the support rod 12, and the bottom of the support rod 12 extends into the floating body 21 and is positioned by being matched with its axial hole; the height of the support rod 12 can be customized according to user requirements.

[0046] The buoy upper cover 16 is sleeved on the lower part of the support rod 12 and is used for sealing connection with the upper end of the floating body 21; the buoy upper cover 16 is connected to the upper end of the floating body 21 by bolts. At the same time, a sealing groove is machined between their connection surfaces, and a sealing ring is placed in the sealing groove, and sealing silicone grease is appropriately applied to the sealing ring. After the connection bolts are tightened, a watertight cabin is formed inside the buoy, generating buoyancy and ensuring the dryness and good working environment of the equipment inside the cabin.

[0047] The main power switch 13, the upper cover circuit module 14, and the satellite communication module 15 are all arranged on the buoy upper cover 16, and the buoy upper cover 16 is used to provide fixation, sealing, and protection for the above-mentioned module devices. The main power switch 13 is used to control the startup and shutdown of the buoy.

[0048] The meteorological sensor 11 collects environmental parameters including (but not limited to) air temperature, air humidity, atmospheric pressure, wind speed, wind direction, rainfall, etc. The meteorological sensor 11 is built-in with an electronic compass, and the error generated by the buoy shaking can be offset through an algorithm. The upper cover circuit module 14 collects the environmental parameter data information transmitted back by the meteorological sensor 11, performs data encoding and encryption, and sends it to the land center data station through the satellite communication module 15; the satellite communication module 15 also provides its own position and time information for the buoy. The satellite communication module 15 can be a Beidou satellite communication module, and the Beidou satellite communication module supports Beidou satellite positioning, timing, and short message communication.

[0049] As Figure 3 shown, the floating body 21, the control module 22, the power module 23, the out-of-water sensor module 24, and the underwater environmental parameter sensor module constitute the buoy main body 2. The buoy main body 2 mainly performs the task of floating with ocean currents and transmits the ocean environmental parameters detected on the floating track to the land center data station through the satellite communication module 15.

[0050] Among them, the floating body 21 is integrally formed by rotational molding using low-density polyethylene or engineering plastics of the same grade. The floating body 21 can provide fixation, sealing, and protection for all module devices of the buoy main body 2.

[0051] The control module 22 is integrated with a power management circuit, which can manage the power consumption of the power module 23 and achieve long-term stable and continuous observation and collection of the target sea area through low-power technology. The power module 23 includes a solar panel, a lithium battery pack, and a power protection circuit. The solar panel is a monocrystalline silicon solar panel; the solar panel is installed on the floating body 21 and processed into a shape that fits the surface of the floating body 21 to maximize the utilization of solar energy. The lithium battery pack is usually composed of 18650-type or 21700-type ternary lithium batteries to form a battery pack, and a power protection circuit is integrated in the battery pack. The power management circuit counts the power consumption and reasonably configures the charging power of the solar panel and the battery capacity of the storage battery. It can reduce or increase the power according to the situation and shut down when not working. The power module 23 can achieve long-term stable power supply for the buoy equipment.

[0052] The control module 22 collects the environmental parameters transmitted back by the underwater environmental parameter sensor module through a specific program, encodes and encrypts the data, and sends the data packet to the land central data station through the satellite communication module 15. In this embodiment, the underwater environmental parameter sensor module includes a water temperature sensor 26 and a salinity sensor 27. During operation, the control module 22 collects the data information transmitted back by the water temperature sensor 26 and the salinity sensor 27. The water temperature sensor 26 contains seawater temperature information, and the salinity sensor 27 contains seawater salinity information.

[0053] Specifically, a plurality of sensor mounting interfaces are provided at the bottom of the floating body 21, and sensor devices such as wave sensors, water depth sensors, water quality sensors, etc. (not limited to this) can be installed according to the user's usage requirements; the number of sensors can also be reduced as needed.

[0054] The out-of-water sensor module 24 includes a circuit loop composed of two electrodes. The resistance value of the two electrodes in water is less than the resistance value of the two electrodes in air. Whether the buoy is out of water is judged according to the change of the resistance value; there are more than two groups of the circuit loops. Each group of circuit loops is an out-of-water sensor. The significant change in the resistance value between the two electrodes of the out-of-water sensor will be converted into a significant voltage change after power-on. The control module 22 will collect the above voltage change and determine whether the out-of-water sensor is immersed in water through logical judgment.

[0055] Specifically, the electrode includes a power module fastening bolt 241, a stud 242 and a bottom embedded nut 243; the stud 242 is made of conductive metal and is screwed onto the bottom embedded nut 243. The power module fastening bolt 241 fixes the power module 23 on the stud 242 and is firmly fixed to the floating body 21 through the bottom embedded nut 243; a wire terminal is installed on the power module fastening bolt 241 and is connected to the control module 22 through a wire. The stud 242 is a hexagonal stud.

[0056] The bottom embedded nut 243 is integrally formed with the floating body 21 through a rotational molding embedding process. It should be noted that, as Figure 5 shown, the bottom embedded nut 243 does not completely embed inside the floating body 21, but penetrates through the bottom of the floating body 21. The bottom embedded nut 243 is made of 316 stainless steel or stainless steel of the same grade. One side can be in direct contact with seawater, and the other side inside the watertight compartment of the floating body 21 is sealed with sealant to ensure the watertight performance inside the floating body 21; at the same time, through the above process treatment, the bottom embedded nut 243 still has a relatively high structural strength and can provide support and fixation for the power module 23.

[0057] Thus, the power module fastening bolt 241, the stud 242 and the bottom embedded nut 243 are connected to each other and can conduct electricity to form an electrode. As Figure 6As shown in the figure, in this embodiment, there are two groups of circuit loops, that is, four electrodes, namely electrode I, electrode II, electrode III, and electrode IV. The four electrodes are connected to the wire terminals provided by the control module 22 through wires.

[0058] Electrode I and electrode III are opposite in position, and electrode II and electrode IV are opposite in position. During operation, electrode I and electrode III form a circuit loop through seawater, that is, the first water-off sensor; electrode II and electrode IV form a circuit loop through seawater, that is, the second water-off sensor. The first water-off sensor and the second water-off sensor form the water-off sensor module 24.

[0059] The first water-off sensor and the second water-off sensor form a "cross" shape on the geometric plane (the connection line of the two electrodes of the two water-off sensors), which can ensure that when the buoy shakes violently in bad sea conditions, when any one of the water-off sensors leaves the water surface, there is still one water-off sensor in the water. When both water-off sensors leave the water surface, the buoy judges that the buoy has left the water according to the voltage change collected by the control module 22 through logical judgment, and sends an alarm signal of "the buoy has left the water" to the land center data station. Then, the land center data station reminds the user through various means such as high-brightness display, beeping sound, and short message notification; when at least one water-off sensor is still in the water, the buoy judges that the buoy has not left the water and the buoy is in a normal working state. Through the above logical judgment, the water-off sensor module 24 can accurately judge the water-off state of the buoy. Of course, the above logical judgment program can also be set in the land center data station, and the above judgment is completed by the server computer of the land center data station and the user is reminded.

[0060] As an improvement, the air-sea interface drifting buoy further includes a micro-power module 25. The micro-power module 25 includes two DC motors, which are respectively arranged on both sides of the floating body 21 and are controlled by the control module 22. By controlling the two DC motors to output the same power or different powers, the buoy can go straight or turn in the water.

[0061] The control module 22 is built-in with an attitude sensor and an electronic compass, which can offset the influence of its own swaying in the water through algorithms and sense its own direction at the same time; the satellite communication module 15 provides the buoy with its own position and time information. Under the interconnection and regulation of the above various sensors and module devices, the control module 22 controls the micro-power module 25 to realize the free navigation of the buoy in the water.

[0062] When multiple buoys are in a networking state, if a buoy is in a water-off state and is judged as malicious salvage, the land center data station issues an alarm message of "malicious salvage"; the other buoys in the same sea area judge whether they are in a threatened state according to the water flow direction and distance; if it is judged as a dangerous state, the buoy will plan the best avoidance route by itself and start the micro-power module 25 to stay away from the dangerous sea area. Among them, the judgment of malicious salvage can be completed by the user or the land center data station.

[0063] As shown Figure 4 in the figure, the underwater counterweight module 3 includes a bottom bracket 31, a counterweight 32 and a counterweight chain 33.

[0064] The bottom bracket 31 has a hollow surface, which is convenient for the underwater environment parameter sensor module and the out-of-water sensor module 24 inside the bottom bracket 31 to detect. The bottom bracket 31 can be an integral structure. Preferably, the bottom bracket 31 is a split assembly structure, mainly composed of annular plates and struts. Two or more adjacent annular plates are connected by struts. The top annular plate is installed on the bottom surface of the floating body 21 by bolts, which can play the role of connecting the counterweight 32 and the counterweight chain 33, and at the same time provide protection for the out-of-water sensor module 24, the water temperature sensor 26, the salinity sensor 27 (or other additional sensors), etc. The annular plates and struts are made of POM (polyoxymethylene) or engineering plastics of the same grade, with low cost and easy processing.

[0065] In this embodiment, the counterweight 32 is composed of 1 kg, 2 kg, and 3 kg standard counterweights. The counterweight 32 is made of 316 stainless steel or stainless steel with the same anti-corrosion ability. Through calculation, the counterweight 32 of appropriate weight is installed on the bottom surface of the bottom bracket 31 by bolts and nuts to ensure that the buoy always maintains a correct upright posture and is not overturned by the disturbance of the waves.

[0066] The counterweight chain is a 316 stainless steel iron chain with a length of 1 meter, which plays the role of increasing the counterweight of the buoy and slowing down the swaying of the buoy with the waves. In addition, an interface is provided at the end 33 of the counterweight chain, and a water sail can be installed to improve the flow-following performance of the buoy.

[0067] In summary, the above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sea-air interface drifting buoy capable of detecting the buoy's out-of-water state, characterized in that: It includes an above-water environment parameter acquisition module, a float, a control module, a power module, a water-leaving sensor module, an underwater environment parameter sensor module and an underwater counterweight module; The above-water environment parameter acquisition module is fixed above the floating body, and sends the collected data to the land central data station; the floating body provides installation space for the control module, the power module, the water separation sensor module, and the underwater environment parameter sensor module, the water separation sensor module and the underwater environment parameter sensor module are located at the bottom of the floating body, and the underwater counterweight module is fixed below the floating body and is located outside the water separation sensor module and the underwater environment parameter sensor module; the control module collects the environmental parameters detected by the underwater environment parameter sensor module and sends them to the land central data station after processing; the power module supplies power to the above-water environment parameter acquisition module, the control module, the water separation sensor module, and the underwater environment parameter sensor module; the water separation sensor module is used to detect whether the buoy is in water.

2. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 1, characterized in that: The control module is integrated with a power management circuit to manage the power consumption of the power module and realize power distribution; the control module is built with a posture sensor and an electronic compass, which can offset the impact of its own swaying in the water through an algorithm and sense its own direction at the same time.

3. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 1, characterized in that: The above-water environment parameter acquisition module includes a meteorological sensor, a support rod, a main power switch, an upper cover circuit module, a satellite communication module and a buoy upper cover; A meteorological sensor is arranged on the top of the support rod, and the bottom of the support rod extends into the float and cooperates with its axial hole to achieve positioning; the buoy upper cover is sleeved on the lower part of the support rod, and is used to be sealed and connected with the upper end of the float; the main power switch, upper cover circuit module, and satellite communication module are all arranged on the buoy upper cover, and the main power switch is used to control the start and shut down of the buoy; the upper cover circuit module is used to collect data information sent back by the meteorological sensor, and encode and encrypt the data, and send it to the land central data station through the satellite communication module; the satellite communication module provides the buoy with its own position and time information.

4. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 1, characterized in that: The water-out sensor module includes a circuit loop composed of two electrodes, the resistance value of the two electrodes in water is smaller than the resistance value of the two electrodes in air, and whether the buoy is out of water is determined based on the change in resistance value; the circuit loop consists of more than two groups.

5. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 4, characterized in that: The circuit loops are divided into two groups, the two electrodes in each group of circuit loops are positioned opposite to each other, and the two electrodes of the two groups of circuit loops are connected to form a "cross" shape.

6. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 4 or 5, characterized in that: The electrode includes a power module fastening bolt, a stud and a bottom embedded nut; The stud is made of conductive metal and is screwed onto the bottom embedded nut. The power module fastening bolt fixes the power module onto the stud and is firmly fixed to the float through the bottom embedded nut. A wire terminal is installed on the fastening bolt of the power module and is connected to the control module through a wire; The bottom embedded nut is integrally formed with the floating body through a rotational molding embedding process.

7. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 1, characterized in that: The underwater counterweight module includes a bottom bracket, a counterweight block and a counterweight chain; The bottom bracket is hollowed out on the surface, the counterweight block is arranged on the bottom surface of the bottom bracket, and the counterweight chain is arranged on the bottom of the counterweight block; an interface is arranged at the end of the counterweight chain for installing a water sail.

8. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 2, characterized in that: The power module includes a solar panel, a lithium battery pack and a power protection circuit; The solar panel is installed on the floating body, and the lithium battery pack is a battery pack composed of ternary lithium batteries. The solar panel is used to charge the lithium battery pack; the power management circuit calculates the power consumption and configures the charging power of the solar panel and the battery capacity; the lithium battery pack is integrated with a power protection circuit.

9. The air-sea interface drifting buoy capable of detecting the buoy out of water state as claimed in claim 1, characterized in that: It also includes a micro power module, which includes two DC motors placed on both sides of the float and controlled by the control module. By controlling the two DC motors to output the same power or different powers, the buoy can move straight or turn in the water.

10. The air-sea interface drifting buoy capable of detecting the buoy's out-of-water state as claimed in claim 9, characterized in that: When multiple buoys are in a networking state, if a buoy is out of water and is judged to be malicious salvage, the land central data station will issue an alarm message; the other buoys in the same sea area will judge whether they are in a threatened state based on the direction and distance of the water flow; if it is determined to be in a dangerous state, the buoy will plan the best avoidance route by itself and activate the micro-power module to stay away from the dangerous sea area.