Water-based wind, light and storage integrated charging pile system

Abstract

This invention discloses a water-based integrated wind, solar, and energy storage charging pile system, comprising an inverted gourd-shaped charging pile body. The top of the charging pile features a drone landing platform with a visual recognition QR code guidance module, a centering device with flexible contact centering and rotating locking, and a wireless charging module for drones. On both sides of the body are V-shaped unmanned docks with inflatable airbag clamping arms and movable unmanned vessel charging modules. The lower part of the body houses an energy storage battery system, and the bottom has an anchor. The body is surrounded by inflatable and deflated anti-collision airbags and several independent small airbags, and includes a system for periodically inflating and deflating these airbags to remove marine organisms. This invention can be deployed at sea, utilizing wind, solar, and energy storage to wirelessly charge drones and unmanned vessels, offering advantages such as high stability, collision resistance, anti-biofouling, and intelligence.

Description

Technical Field

[0001] This invention belongs to the field of new energy technology, specifically relating to a water-based integrated charging pile system for wind, solar and energy storage, which is particularly suitable for charging and replenishing electric equipment such as electric ships, drones, and unmanned vessels on water and in the air in marine, inland river and near-shore areas. Background Technology

[0002] With the development of the marine economy and the advancement of green and low-carbon strategies, the use of marine electric facilities (such as small electric boats, unmanned vessels, drones, surveying and monitoring equipment, etc.) and their auxiliary power facilities (such as rechargeable communication systems, navigation systems, underwater vehicles, etc.) is becoming increasingly widespread. To meet the charging needs of these facilities, corresponding charging facilities have been established on shore and at docks. However, these facilities often operate in sea areas far from the coast. When they encounter a power shortage at sea, due to their distance from the shore, they cannot find a nearby charging station and may cease operation due to power depletion, leaving them in a predicament. To date, there is a lack of charging station systems that can be deployed in marine areas far from the coast.

[0003] With the maturation and widespread adoption of offshore wind power, photovoltaic power, and tidal power technologies, these power generation devices have become important sources of clean electricity, laying the foundation for building offshore charging systems. However, existing offshore charging solutions still have the following problems:

[0004] First, the location of power generation equipment is fixed, while electric equipment that needs to be charged is often widely distributed and scattered, making it impossible to deploy charging facilities nearby, which makes it inconvenient to charge electric equipment and limits its operating radius.

[0005] Secondly, most existing marine charging stations use wired charging, and the charging plugs are exposed to the high salt spray and high humidity marine environment for a long time. The sealing parts are prone to aging and failure, which poses safety hazards such as leakage, fire and electric shock.

[0006] Third, the patrol and inspection range of maritime drones and unmanned vessels is limited by battery life, making long-distance operations impossible. The lack of power replenishment points along the way severely restricts their application effectiveness.

[0007] Fourth, in environments with large waves, existing floating marine charging piles are prone to collisions with the vessels being charged due to relative motion, which can damage the charging piles or the vessels.

[0008] Fifth, existing charging piles do not have energy storage systems, so they cannot provide energy for the equipment under severe weather conditions, nor can they be moved to designated sea areas to supply power to the equipment as needed.

[0009] Sixth, the problem of biological attachment in the marine environment is serious. Barnacles, oysters and other fouling organisms can easily attach to the outer shell of the charging pile and the surface of the airbag, increasing the structural load, affecting the floating performance and accelerating the corrosion of materials. Summary of the Invention

[0010] The technical problem solved by this invention is to overcome the shortcomings of existing marine charging facilities, such as inflexible deployment, lack of energy storage function, poor wind and wave resistance, insufficient charging safety, lack of anti-marine organism attachment function, and inability to provide integrated charging services for drones and unmanned vessels, and to provide a wind, solar and energy storage integrated charging pile system based on the water surface.

[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0012] A water-based integrated charging system combining wind, solar, and energy storage includes a charging pile body, a drone landing platform, an unmanned dock, an energy storage battery system, and an anchor.

[0013] The charging pile's main body is shaped like an inverted gourd, with the upper radial dimension larger than the lower radial dimension. The main body includes a frame and a collision protection device. The device comprises inflatable and deflated airbags surrounding the frame, and several smaller, independent airbags surrounding the airbags. This inverted gourd-shaped structure, combined with the energy storage battery system at the bottom, creates a gravity-dependent structure, placing the overall center of gravity below the center of buoyancy. Similar to the principle of a self-righting toy, it automatically rights itself under wave action, maintaining good buoyancy stability. The airbags provide primary cushioning protection during external impacts, while the smaller, independent airbags provide multi-layered protection. Even if some smaller airbags are damaged, the remaining airbags retain their protective function, improving the redundancy and reliability of the collision protection system.

[0014] The drone landing platform is located on top of the charging station. It includes a visual recognition QR code guidance module, a drone alignment device, a drone wireless charging module, and an unmanned surface vessel (USV) charging module. The visual recognition QR code guidance module guides the drone to a precise landing. The drone alignment device moves any drones that have deviated from their intended position after landing back to the center, ensuring accurate alignment between the wireless charging module and the drone's receiver module. The wireless charging module, located in the center of the landing pad, provides wireless charging for the drones. The USV charging modules, located on either side of the landing pad, provide wireless charging for the USVs docked in the unmanned dock.

[0015] The unmanned dock is located on both sides of the charging pile body and includes a clamping arm structure formed by inflatable airbags to clamp the unmanned boat. After the unmanned boat enters the dock, the inflatable airbags inflate and expand, squeezing from both sides towards the middle to form a clamp and fixation, preventing the unmanned boat from moving or detaching under the action of waves.

[0016] The energy storage battery system is located in the lower part of the charging pile body to form a gravity-dependent structure. The energy storage battery system is electrically connected to the wireless charging modules for drones and unmanned surface vessels (USVs) to store electrical energy and provide power for the wireless charging of drones and USVs.

[0017] An anchor is placed at the bottom of the charging pile body to fix the charging pile body to the water surface and prevent it from drifting with the current.

[0018] Furthermore, the frame includes a hollow main shaft, at least three telescopic components connected to the outer wall of the main shaft, a support plate connected to the bottom of the main shaft, and a cover connected to the bottom surface of the support plate. The telescopic components include several telescopic rods, with the inner end of each rod connected to the main shaft and the outer end connected to the anti-collision airbag. Supporting reinforcements are also connected to the connection points between the telescopic rods and the main shaft to support the telescopic rods. An anchor is connected to the bottom of the cover. By adjusting the telescopic rods, the radial dimensions of the anti-collision airbag can be changed to adapt to different sea conditions and berthing requirements. When a smaller size is needed for towing, the telescopic rods retract, causing the anti-collision airbag to contract inwards; when enhanced floating stability and collision protection are needed, the telescopic rods extend, causing the anti-collision airbag to deploy outwards.

[0019] Furthermore, the anti-collision airbags, small airbags, and inflatable airbags are all made of rubber and polyester fiber fabric, possessing high strength, aging resistance, and good airtightness. The anti-collision airbags are bonded to the telescopic poles with structural adhesive, and the small airbags are bonded to the anti-collision airbags with structural adhesive.

[0020] Furthermore, it also includes a marine organism anti-attachment system. This system comprises an air pump housed within the casing, an air intake pipe connected to the upper end of the main shaft, and an exhaust pipe. The air intake pipe is connected to the main shaft, and the air pump's outlet is connected to the bottom of the main shaft. The air intake outlet is located inside the airbag, and a one-way valve is installed on the side of the air intake pipe near the main shaft to ensure that gas can only enter the airbag in one direction. The exhaust pipe has two air intakes and one exhaust outlet, which exits through the airbag. One air intake connects to the interior of the airbag, and the other air intake is used to connect to the drainage system. A solenoid valve is installed on the exhaust pipe, located inside the airbag, and is used to control the opening and closing of the exhaust pipe. The airbag is periodically inflated and deflated by the air pump, causing it to periodically expand and contract. During the alternating expansion and contraction of the air bladder, marine organisms (such as barnacles, oyster larvae, algae, etc.) attached to the surface of the air bladder experience stress due to the change in the size of the substrate. When the stress exceeds the attachment strength, they peel off from the surface of the air bladder, thus achieving physical prevention of marine organism attachment.

[0021] Furthermore, the drainage system includes a water collection tank located inside the housing and a water level sensor located inside the water collection tank. A Venturi tube is connected to one air inlet of the exhaust pipe, and the negative pressure end of the Venturi tube is connected to the water collection tank. When the water level in the water collection tank reaches a set value, a negative pressure is generated during the exhaust process using the Venturi effect, drawing water accumulated inside the charging pile body into the exhaust pipe and expelling it along with the gas, thereby ensuring that the inside of the charging pile cavity remains dry and preventing electrical equipment from getting damp.

[0022] Furthermore, the UAV centering device includes at least four circumferentially arranged linear drive mechanisms and flexible contacts connected to the output ends of the linear drive mechanisms. The linear drive mechanisms control the flexible contacts to move linearly, propelling the UAV towards center. During centering, each linear drive mechanism synchronously drives the flexible contacts from different directions to push the UAV to the center of the landing pad. The UAV centering device also includes rotary motors located on both sides of the UAV's wireless charging module and latches connected to the output ends of the rotary motors. The rotary motors are pre-installed within the UAV landing platform. The operation of the rotary motors drives the latches to rotate, allowing them to rotate onto the UAV's feet to lock the UAV during charging. An RTK GPS antenna is installed on the UAV landing platform to receive positioning signals. The UAV lands on the platform using its visual positioning system and visual recognition QR code guidance module. The wireless charging module is located at the center of the UAV landing platform. A communication antenna and a weather station are also installed on the UAV landing platform. The RTK GPS antenna receives differential positioning signals, achieving centimeter-level accuracy positioning guidance. The communication antenna is used for data communication with the UAV and a remote control center. Weather stations are used to monitor environmental parameters such as wind speed, wind direction, temperature, humidity, and air pressure.

[0023] Furthermore, the unmanned dock is V-shaped, with an inflatable airbag positioned within the V-shaped opening. The V-shaped structure facilitates the unmanned vessel's entry and alignment from the front. A linear displacement device is installed on the dock, and a lifting device is mounted on this device. The unmanned vessel's wireless charging module is installed at the output end of the lifting device. The linear displacement device drives the wireless charging module horizontally, while the lifting device drives it vertically, aligning it with the charging port of the unmanned vessel. A pressure sensor is installed on the wireless charging module; when the pressure sensor detects that the contact pressure has reached a set value, the movement stops, and charging begins.

[0024] Furthermore, the energy storage battery system includes four battery packs, each consisting of 16 3.2V / 50Ah lithium iron phosphate cells connected in series, with a total capacity of 200Ah, a total energy of 9.6KWh, a rated power of 5KW, and a maximum discharge power of 8KW. Lithium iron phosphate batteries have advantages such as high safety, long cycle life, and good thermal stability, making them suitable for harsh marine environments with high salt spray and high humidity.

[0025] The energy storage battery system also includes an intelligent power distribution module and a battery management system (BMS). The intelligent power distribution module dynamically allocates charging power based on device type, battery capacity, and charging demand. It is configured to prioritize charging drones over unmanned surface vessels, and prioritize emergency mission equipment over regular equipment. The BMS is configured to initiate charging of the wind-solar hybrid power generation system when the energy storage battery's SOC is ≤20%, and to stop charging when the SOC is ≥95%. It also allows wireless charging to begin when the energy storage battery's SOC is ≥23%, and stops wireless charging and initiates charging of the wind-solar hybrid power generation system when the SOC is ≤20% during charging.

[0026] Furthermore, the energy storage battery system is connected to a power control box, which contains an inverter / converter unit, an MPPT controller, and a combiner box for connecting to wind power generation equipment, photovoltaic power generation equipment, and / or tidal power generation equipment. Charging piles can be deployed near offshore wind farms, photovoltaic power stations, tidal power stations, or lighthouses, or other facilities with power sources, to charge the energy storage battery through these power generation devices.

[0027] Furthermore, both the drone wireless charging module and the unmanned boat wireless charging module adopt electromagnetic induction wireless charging technology, with a total system charging efficiency of no less than 80%. The electromagnetic induction wireless charging system consists of a transmitting coil, a receiving coil, a control circuit, and a protection circuit. A high-frequency alternating current is passed through the transmitting coil to generate an alternating magnetic field. The receiving coil induces an electromotive force in the magnetic field, which is then rectified and filtered to supply power to the load.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (I) Strong stability and resistance to wind and waves. This invention adopts an inverted gourd-shaped shell design, which is larger at the top and smaller at the bottom. Combined with the gravity-dependent structure formed by the bottom energy storage battery system, the overall center of gravity is located below the waterline, forming a self-stabilizing system similar to a roly-poly toy. With the fixing effect of the bottom anchor, the charging pile can maintain a stable posture on the undulating sea surface, effectively solving the problem that floating charging piles cannot charge normally due to violent shaking in wind and waves.

[0030] (II) High Safety Through Multi-Layer Collision Protection. This invention incorporates inflatable and deflated airbags around the charging pile frame, with several independent smaller airbags surrounding these airbags, forming a multi-layered protective structure. Even if some smaller airbags are damaged, the remaining airbags retain their protective function, improving the redundancy and reliability of the collision protection system. When the unmanned vessel is docked for charging, the inflatable airbags in the dock inflate and deploy to form a flexible clamping structure, preventing rigid collisions between the charging pile and the vessel while firmly securing the vessel and preventing damage from relative movement and impacts caused by waves.

[0031] (III) It has the function of preventing marine organisms from attaching. This invention utilizes the periodic inflation and deflation of the anti-collision airbag to achieve a "breathing" function. Through the periodic expansion and contraction of the airbag surface, the marine organisms attached to it are peeled off due to stress changes. This physical anti-attachment method does not require the use of antifouling coatings, avoids the pollution of the marine environment by chemical substances, is environmentally friendly, and has low maintenance costs.

[0032] (iv) Integrated Wireless Charging of UAVs and Unmanned Vessels. This invention integrates a UAV landing platform and an unmanned vessel dock on the same charging station, providing wireless charging services for both UAVs and unmanned vessels simultaneously. Through the cooperation of a visual recognition QR code guidance module and a UAV visual positioning system, autonomous and precise landing of the UAV is achieved. The UAV centering device's latch locks the UAV during charging, preventing damage caused by wind and waves. The unmanned vessel achieves precise docking and fixation through a V-shaped dock and inflatable airbag clamps. Combined with a liftable wireless charging module, a fully automated charging process is achieved, requiring no manual intervention.

[0033] (v) Possesses energy storage and mobile power supply capabilities. This invention incorporates a large-capacity lithium iron phosphate energy storage battery system, which can be charged by renewable energy sources such as offshore wind power, photovoltaics, and tidal power. Once fully charged, the energy storage battery can be towed by a ship to any sea area requiring power supply, providing flexible emergency power replenishment for offshore electric equipment, effectively solving the problem that drones and unmanned vessels cannot operate at long distances due to battery range limitations.

[0034] (vi) High charging efficiency and high level of intelligence. This invention adopts electromagnetic induction wireless charging technology, and the total system charging efficiency is not less than 80%. With the help of intelligent power distribution module and BMS battery management system, dynamic power distribution and priority management are realized when multiple devices are charging at the same time, ensuring the safety, fairness and efficiency of the charging process.

[0035] (vii) Dry internal environment and high equipment reliability. This invention utilizes a Venturi tube negative pressure drainage system to automatically drain water accumulated in the cavity using the negative pressure generated during the airbag degassing process, ensuring that the electrical equipment inside the charging pile is in a dry environment, extending the service life of the equipment, and improving system reliability. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of a drone parking platform.

[0038] Figure 3 A schematic diagram of a drone visual positioning system;

[0039] Figure 4 Analytical diagram of the unmanned vessel docking action;

[0040] Figure 5 A diagram illustrating the charging process of an unmanned boat in an unmanned dock.

[0041] Figure 6 A schematic diagram of the charging module, linear displacement device, and lifting device for the unmanned vessel;

[0042] Figure 7 This is a schematic diagram of the skeleton;

[0043] Figure 8 Here is a flowchart of the charging system;

[0044] Figure 9 Here is a flowchart of the discharge system;

[0045] In the diagram, 1-charging pile main body, 2-anti-collision airbag, 3-drone landing platform, 4-visual recognition QR code guidance module, 5-drone wireless charging module, 6-unmanned boat wireless charging module, 7-unmanned dock, 8-inflatable airbag, 9-unmanned boat, 10-anchor, 11-main shaft, 12-support plate, 13-cover, 14-telescopic rod, 15-support reinforcement, 16-air pump, 17-intake pipe, 18-exhaust pipe, 19-one-way valve, 20-solenoid valve, 21-water collection tank, 22-water level sensor, 23-flexible contact, 24-buckle, 25-communication antenna and weather station, 26-linear displacement device, 27-lifting device, 28-battery pack, 29-intelligent power distribution module, 30-BMS battery management system, 32-barrier sensor, 33-drone. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Example 1: Main structure of charging pile

[0048] like Figures 1-7 As shown, the shell of the charging pile body 1 is designed as an inverted gourd shape, that is, the upper part is larger than the lower part.

[0049] The frame includes a hollow main shaft 11, a three-layer telescopic assembly connected to the outer wall of the main shaft 11, a support plate 12 connected to the bottom of the main shaft 11, and a cover 13 connected to the bottom surface of the support plate 12. The main shaft 11 is made of high-strength aluminum alloy tubing with a wall thickness of 8mm and an inner diameter of 100mm, serving as both a structural support and an air intake channel. The three layers of telescopic assemblies correspond to the upper, middle, and lower parts of the gourd shape. Each layer of telescopic assembly includes eight telescopic rods 14, evenly distributed around the circumference of the main shaft 11. The inner end of the telescopic rod 14 is connected to the main shaft 11 via a hinge, and the outer end is bonded to the inner wall of the anti-collision airbag 2 with structural adhesive. A support reinforcement 15 is also connected to the connection between the telescopic rod 14 and the main shaft 11 to support the telescopic rod 14 and prevent it from deforming or breaking under stress. The support reinforcement 15 can be a triangular rib or a diagonal brace structure.

[0050] In one alternative embodiment, the telescopic boom 14 is an electrically operated push rod with a telescopic stroke of 0.3-0.8 meters. When the telescopic boom 14 is fully extended, the anti-collision airbag 2 is at its maximum diameter, providing maximum buoyancy and anti-collision protection range; when the telescopic boom 14 is fully retracted, the anti-collision airbag 2 fits tightly against the frame, reducing the overall volume and facilitating towing transportation.

[0051] The support plate 12 is a circular steel plate with a thickness of 12mm, welded to the bottom of the main shaft 11. A cover 13 is connected to the bottom surface of the support plate 12. The cover 13 is hemispherical or cylindrical, made of 2205 duplex steel, and has excellent resistance to seawater corrosion. The interior of the cover 13 forms a sealed cavity to accommodate the drainage system. An anchor chain hole is connected to the bottom of the cover 13, through which the anchor chain passes and connects to the anchor 10.

[0052] The outer layer of the frame is covered by the anti-collision airbag 2. The anti-collision airbag 2 is made of rubber and polyester fiber fabric composite, and its overall shape is an inverted gourd shape that matches the frame. The inner wall of the anti-collision airbag 2 is bonded and fixed to the outer end of each telescopic rod 14 with structural adhesive. Around the anti-collision airbag 2, several independent small airbags are bonded with structural adhesive. The small airbags are about 0.2-0.4 meters in diameter and are distributed in a honeycomb or array pattern on the outer surface of the anti-collision airbag 2, completely enveloping the anti-collision airbag 2. Each small airbag is an independent sealing structure. Even if some small airbags are punctured by a sharp object and leak air, the remaining small airbags can still remain inflated and continue to play a protective role.

[0053] Example 2: Collision Protection and Anti-Marine Species Attachment System

[0054] The anti-collision protection device includes an anti-collision airbag 2 covering the outer perimeter of the frame and several independent small airbags surrounding the anti-collision airbag 2. Both the anti-collision airbag 2 and the small airbags are made of rubber and polyester fiber fabric. The anti-collision airbag 2 is bonded to the telescopic rod 14 with structural adhesive, and the small airbags are bonded to the anti-collision airbag 2 with structural adhesive.

[0055] like Figure 1 and Figure 7 As shown, the specific structure and working principle of the anti-marine organism attachment system are as follows: An air pump 16 is installed inside the casing 13. The main shaft 11 is a hollow tube, with its lower end connected to the air outlet of the air pump 16 and its upper end connected to an air inlet pipe 17. The air inlet pipe 17 extends from the top of the main shaft 11 and extends into the interior of the anti-collision airbag 2, with the air outlet of the air inlet pipe 17 located in the internal space of the anti-collision airbag 2. A one-way valve 19 is installed on the side of the air inlet pipe 17 near the main shaft 11 to ensure that gas can only enter the anti-collision airbag 2 from the main shaft 11 through the air inlet pipe 17, preventing gas backflow.

[0056] The exhaust pipe 18 also extends from the top of the main shaft 11, and has two air inlets and one exhaust outlet. The exhaust outlet extends through the anti-collision airbag 2, discharging gas to the external environment, and the connection between the exhaust outlet and the anti-collision airbag 2 is sealed with sealant. One of the air inlets communicates with the interior of the anti-collision airbag 2 to discharge gas from inside the airbag 2. The other air inlet is connected to the water collection tank 21 inside the cover 13 via a pipe to drain accumulated water. A solenoid valve 20 is installed on the exhaust pipe 18, located inside the anti-collision airbag 2, to control the opening and closing of the exhaust pipe 18.

[0057] Under normal operating conditions, the air pump 16 inflates the anti-collision airbag 2 according to a preset time cycle (e.g., once every 24 hours). During inflation, the solenoid valve 20 closes, the air pump 16 starts, and air enters the anti-collision airbag 2 through the main shaft 11, the air inlet pipe 17, and the one-way valve 19, causing the anti-collision airbag 2 to inflate to the design pressure (e.g., 0.02-0.05 MPa). In addition, a pressure sensor 32 is installed on the main shaft 11. After inflation is completed and the pressure reaches the preset state, the air pump 16 stops working, the one-way valve 19 prevents backflow of gas, and the anti-collision airbag 2 remains inflated.

[0058] When venting is required, the solenoid valve 20 opens, and the gas inside the anti-collision airbag 2 is discharged to the external environment through an air inlet and an air outlet of the exhaust pipe 18. The anti-collision airbag 2 quickly contracts to return to its initial state. During the alternating expansion and contraction of the anti-collision airbag 2, marine organisms (such as barnacles, oyster larvae, algae, etc.) attached to the surface of the anti-collision airbag 2 and the smaller airbags experience stress due to the change in the size of the substrate. When the stress exceeds the adhesion strength, they peel off from the airbag surface.

[0059] In one alternative implementation, both inflation and deflation times are controlled within 1-3 minutes. The inflation / deflation cycle is adjusted according to the season and water temperature—it can be shortened to once every 12 hours during the peak growth period of marine life in summer, and extended to once every 48 hours in winter.

[0060] Example 3: Drainage System

[0061] like Figure 1 and Figure 7 As shown, the drainage system includes a water collection tank 21 installed inside the housing 13 and a water level sensor 22 installed inside the water collection tank 21. Due to the thermal expansion and contraction effect inside the charging pile body 1 cavity and the condensation of moisture caused by rainy weather, a certain amount of water vapor may accumulate inside the cavity, forming water accumulation.

[0062] A venturi tube is connected to one of the air inlets of the exhaust pipe 18, and the negative pressure end of the venturi tube is connected to the bottom of the water collection tank 21 through a pipe. The main body of the venturi tube is located inside the exhaust pipe 18 or connected in series in the pipe of the exhaust pipe 18. When the solenoid valve 20 is opened and the gas in the anti-collision airbag 2 flows through the exhaust pipe 18 at high speed, the airflow generates a Venturi effect through the venturi tube, forming a negative pressure suction force at the negative pressure end of the venturi tube.

[0063] A water level sensor 22 is installed inside the water collection tank 21. When the water level reaches a set level (e.g., the water depth reaches 5 cm), the drainage procedure is triggered. During the decompression of the anti-collision airbag 2, the venturi tube negative pressure end draws the water in the water collection tank 21 into the exhaust pipe 18. The water is discharged out of the shell along with the airflow through the exhaust port, thereby ensuring that the inside of the charging pile body 1 is dry and preventing the electrical equipment from getting damp.

[0064] In one alternative implementation, the drainage process is synchronized with the airbag deflation, with drainage completed during each deflation cycle. If the water level sensor 22 detects that the water has not been completely drained, drainage can continue in the next deflation cycle until all the water is drained.

[0065] Example 4: UAV landing platform and UAV visual positioning system

[0066] like Figure 1 , Figure 2 and Figure 3 As shown, the drone landing platform 3 is located on top of the charging pile body 1. A visual recognition QR code guidance module 4 is installed on the platform surface. This module uses AprilTag QR code visual marking technology. AprilTag is a high-precision visual reference marking system that, compared to traditional QR codes, has higher positioning accuracy and stronger anti-interference capabilities, making it suitable for precise drone landing guidance in complex lighting environments at sea.

[0067] The drone landing platform 3 is equipped with an RTK GPS antenna to receive satellite positioning signals and differential correction signals from the RTK base station, achieving centimeter-level positioning guidance. The drone 33 lands on the drone landing platform 3 through the cooperation of its drone visual positioning system and the visual recognition QR code guidance module 4. The working principle of the drone visual positioning system is as follows:

[0068] (i) Image Acquisition. The onboard camera of UAV 33 acquires real-time images of the landing platform area. The camera uses a high frame rate industrial camera, which can continuously acquire clear images during the landing process of UAV 33 (at a speed of approximately 1-3 m / s). The camera's field of view covers the UAV landing platform 3 and its surrounding area, ensuring that the QR code markers can be captured at each stage of landing.

[0069] (II) Feature Recognition. The airborne image processing unit preprocesses the acquired images, including grayscale conversion, filtering and denoising, and edge enhancement, and then detects the AprilTag QR codes in the images. The AprilTag encoding system has a unique encoding matrix, and each tag contains unique ID information, which can be quickly and accurately recognized. During the recognition process, the system extracts the four corner points of the QR code and the internal encoding information, and uses corner detection algorithms (such as FAST corner detection) to locate the pixel coordinates of the tag in the image.

[0070] (III) Pose Calculation. The system utilizes the known physical dimensions marked by the AprilTag (e.g., a side length of 20cm) and the pixel coordinates marked in the image, combined with the camera's intrinsic parameter matrix (focal length, principal point coordinates, distortion coefficients, etc.), to solve the three-dimensional position and attitude (i.e., x, y, z coordinates and yaw, pitch, and roll angles) of the UAV 33 relative to the UAV landing platform 3 using the PnP (Perspective-n-Point) algorithm. The pose calculation frequency can reach over 30Hz, achieving millisecond-level real-time positioning updates.

[0071] (iv) Flight Control System Guided Landing. The attitude calculation results are transmitted to the flight control system in real time via the onboard communication module. Based on the deviation between the current position and the target landing position (horizontal position deviation, altitude deviation, yaw angle deviation), the flight control system calculates control commands using a PID control algorithm, and adjusts the flight attitude and thrust output of the UAV 33 in real time, guiding the UAV 33 from the initial hovering position to gradually approach the center of the landing pad. In the final stage of landing (altitude ≤ 0.5 meters), the flight control system adopts a fine control mode, improving the position control accuracy to the centimeter level, ensuring that the UAV 33 lands smoothly at the designated position in the center area of ​​the UAV landing platform 3 (deviation ≤ 5 cm).

[0072] After the UAV 33 lands, the centering device on the landing platform is activated. The UAV centering device includes at least four circumferentially arranged linear drive mechanisms and flexible contacts 23 connected to the output ends of the linear drive mechanisms. The flexible contacts 23 are made of flexible materials such as silicone or rubber, which can avoid scratching the surface of the UAV 33 and increase friction when in contact with it. In one optional embodiment, the linear drive mechanism adopts a combination of a motor and a lead screw transmission mechanism, that is, a micro DC motor converts the rotational motion into the linear reciprocating motion of the flexible contacts 23 through a lead screw; in another optional embodiment, the linear drive mechanism adopts a micro electric push rod or a linear module.

[0073] The working principle of the centering phase is as follows: After the UAV 33 lands, the control system simultaneously activates all linear drive mechanisms. Each flexible contact 23 moves synchronously towards the center of the UAV landing platform 3 from different circumferential directions (e.g., front, back, left, and right, or evenly distributed in six or eight directions). The flexible contact 23 first contacts the fuselage or support frame of the UAV 33. Since the moving speed of each flexible contact 23 is the same and the stroke is synchronized, the UAV 33 gradually moves towards the center of the UAV landing platform 3 under the combined action of thrust from all directions. When each flexible contact 23 reaches the preset centering position, the UAV 33 is precisely pushed to the exact center of the UAV landing platform 3. After the position sensor (such as a microswitch or Hall sensor) detects that the flexible contact 23 has reached the centering position, the control system confirms that the centering is complete.

[0074] After centering is complete, all flexible contacts 23 remain extended, simultaneously contacting the drone 33 from multiple directions to hold it in the center of the landing pad. At this time, the locking mechanism of the drone centering device begins to operate. The locking mechanism includes rotary motors located on both sides of the drone's wireless charging module 5 and latches 24 connected to the output ends of the rotary motors. The rotary motors are pre-installed within the drone landing platform 3, with their output shafts extending from the landing pad surface. The latches 24 are L-shaped or arc-shaped, with one end fixedly connected to the output shaft of the rotary motor, and the other end being a free end that can rotate with the output shaft. After centering is complete, the control system sends a command to the rotary motors, which drive the latches 24 to rotate, causing the free end of the latches 24 to rotate above the drone's feet (support frame), locking the feet and firmly locking the drone 33 onto the landing pad. After locking, the rotary motors remain in a self-locking state to prevent the drone 33 from shifting or overturning due to the shaking of the charging pile caused by wind and waves. When unlocking, the rotary motor rotates in the opposite direction, and the latch 24 rotates off the foot, releasing the constraint on the drone 33.

[0075] In one alternative embodiment, the surface of the latch 24 that contacts the foot is provided with a flexible pad to prevent damage to the support frame of the UAV 33. The latch 24 is made of stainless steel and has been treated with an anti-corrosion coating to adapt to the high salt spray environment at sea.

[0076] The drone wireless charging module 5 is located at the center of the drone landing platform 3, directly below the centered position of the flexible contact 23 and below the locking position of the latch 24. The wireless charging module uses electromagnetic induction wireless charging technology and includes a transmitting coil, a receiving coil, a control circuit, and a protection circuit. When the drone 33 is locked in the center position by the latch 24, the wireless charging module initiates the charging process. High-frequency alternating current is passed through the transmitting coil, generating an alternating magnetic field. The receiving coil at the bottom of the drone 33 induces an electromotive force in the magnetic field, which, after rectification and filtering, charges the drone 33's battery.

[0077] The drone landing platform 3 is also equipped with a communication antenna and a weather station 25. The communication antenna is used for data communication with the drone 33 and the remote control center, transmitting landing guidance data, charging status information, and control commands. The weather station 25 is used to monitor environmental parameters such as wind speed, wind direction, temperature, humidity, and air pressure, providing real-time meteorological data for the take-off and landing decisions of the drone 33.

[0078] In one optional implementation, taking a mainstream drone battery (6000mAh, 14.8V, with a capacity of 88.8Wh) as an example, the efficiency of the wireless charging system is no less than 80%, and the actual energy required to be obtained from the energy storage battery is about 111Wh. The system charging power is designed to be 2kW, and the theoretical charging time is about 3.3 minutes. Considering the constant voltage charging stage in the later stage of charging, the actual charging time is about 25-30 minutes.

[0079] Example 5: Unmanned Dock and Unmanned Ship Charging System

[0080] like Figures 1-7 As shown, unmanned docking stations 7 are symmetrically arranged on the left and right sides of the charging pile body 1. The unmanned dock 7 is V-shaped and consists of two guide arms set at an angle. The V-shaped opening faces the sea surface, making it easy for the unmanned boat 9 to enter from the front and center. The inflatable airbag 8 is set inside the V-shaped opening, that is, inside the two guide arms.

[0081] When the unmanned surface vessel 9 needs to dock for charging, it uses its navigation system to locate itself in the vicinity of the unmanned dock 7 (approximately 20-50 meters away) and then slowly enters the V-shaped unmanned dock 7. Once the unmanned surface vessel 9 enters the designated position in the V-shaped unmanned dock 7, it triggers the inflation switches of the airbags 8 on both sides of the dock. The air pump 16 inflates the airbags 8, causing them to rapidly expand and unfold, squeezing from both sides towards the center to form a clamping structure, thus securing the unmanned surface vessel 9 in the center of the unmanned dock 7.

[0082] The unmanned surface vessel (USV) charging module 6 is installed on the USV dock 7 for wireless charging of the USV 9. A linear displacement device 26 is installed on the USV dock 7, and a lifting device 27 is installed on the linear displacement device 26. The USV wireless charging module 6 is installed at the output end of the lifting device 27. Both the linear displacement device 26 and the lifting device 27 employ an electric screw drive mechanism, including a drive motor and a screw, to convert the rotational motion of the motor into linear motion. The linear displacement device 26 can drive the USV wireless charging module 6 to move horizontally (i.e., perpendicular to the centerline of the USV dock 7) to align with the horizontal position of the charging receiver module on the top of the USV 9. The lifting device 27 can drive the USV wireless charging module 6 to move vertically up and down to align with the height of the charging port on the USV 9.

[0083] After the unmanned surface vessel (USV) 9 is secured by the inflatable airbag 8, the control system first activates the linear displacement device 26 to move the wireless charging module 6 to directly above the top of the USV 9 via horizontal movement. Then, the lifting device 27 is activated to move the wireless charging module 6 downwards to the top of the USV 9. A pressure sensor is installed on the wireless charging module 6. When the transmitting coil of the wireless charging module contacts the receiving coil on the top of the USV 9, the pressure sensor detects that the contact pressure has reached a set value (e.g., 10N), and the lifting device 27 stops descending and locks itself. At this time, the gap between the transmitting and receiving coils is controlled within 5mm to ensure a coupling efficiency of no less than 85%. After charging begins, electrical energy is transferred from the transmitting coil to the receiving coil via electromagnetic induction.

[0084] After the unmanned boat 9 has finished charging, the BMS battery management system 30 sends a charging completion signal. The lifting device 27 drives the unmanned boat wireless charging module 6 to rise and reset. The linear displacement device 26 moves it to the initial position, the inflatable airbag 8 deflates and contracts, the clamping force is released, and the unmanned boat 9 starts to leave the unmanned dock 7.

[0085] In one optional implementation, taking a small unmanned surface vessel as an example, it is equipped with two 14.8V lithium polymer batteries, each with a capacity of 21Ah, for a total capacity of approximately 42Ah and a total energy of approximately 622Wh. The wireless charging system has an efficiency of at least 80%, aiming to complete charging within 30 minutes. The required effective charging power is approximately 777.5Wh. The system's charging power is designed at 2kW, with a theoretical charging time of approximately 23 minutes. Considering the constant voltage charging phase, the actual charging time is approximately 25-30 minutes.

[0086] Example 6: Energy Storage Charging and Discharging System

[0087] like Figure 1As shown, the energy storage battery system is located in the lower part of the charging pile body 1, specifically above the support plate 12 inside the cover 13, forming a gravity-driven hanging structure. The energy storage battery system adopts a parallel configuration of 4 battery packs 28. Each battery pack adopts a 16S1P structure, consisting of 16 3.2V / 50Ah lithium iron phosphate single cells connected in series. The rated voltage of a single pack is 51.2V, and the capacity is 50Ah. After the 4 battery packs 28 are connected in parallel, the total system capacity is 200Ah, the total energy is 9.6KWh, the rated power is 5KW, the maximum discharge power is 8KW, and the cycle life is not less than 2000 cycles (under 80% depth of discharge conditions).

[0088] The energy storage battery system is connected to a BMS (Battery Management System) 30. The BMS 30 monitors the voltage, current, and temperature of each individual battery cell in real time and estimates the SOC (State of Charge). When over-temperature (≥55℃), overcurrent (≥100A), overcharge (cell voltage ≥3.65V), or over-discharge (cell voltage ≤2.5V) is detected, the BMS 30 immediately disconnects the corresponding charge / discharge circuit and issues an alarm signal via an audible and visual alarm device.

[0089] The energy storage battery system is also connected to a power control box, which contains an inverter / converter unit, an MPPT controller, and a combiner box for connecting to wind power generation equipment, photovoltaic power generation equipment, and / or tidal power generation equipment. The specific charging process is as follows:

[0090] For small offshore wind turbines, the electricity is rectified and regulated by the wind turbine controller before being used to directly charge the energy storage battery. For medium-sized offshore wind turbines, the electricity is first stepped down and rectified by a converter, then processed by the wind turbine controller before being used to charge the energy storage battery. For offshore photovoltaic (PV) modules, the DC power output from the PV string is used to charge the energy storage battery after achieving maximum power point tracking (MPPT) with the PV controller. For wind-solar hybrid power generation systems, the offshore PV and offshore wind power are each processed by their respective regulation equipment (MPPT, wind turbine controller, converter), and then the power is combined through a combiner box to charge the energy storage battery together.

[0091] When the energy storage battery discharges, the DC power is converted into 220V / 380V AC power by the inverter to power the drone wireless charging module 5 and the unmanned boat wireless charging module 6.

[0092] Example 7: Simultaneous charging of multiple devices and intelligent power allocation

[0093] like Figure 9 As shown, the system supports simultaneous charging of multiple devices, with a maximum discharge power of 8KW. The intelligent power allocation module 29 dynamically allocates charging power based on device type, battery capacity, and charging demand. The specific strategy is as follows:

[0094] (1) The charging priority of the UAV is higher than that of the UAV. When the UAV 33 and the UAV 9 request charging at the same time, the charging power of the UAV is guaranteed first.

[0095] (2) Emergency task equipment has higher priority than regular equipment. When a device issues an emergency task identification signal, the system will prioritize allocating charging power to that device.

[0096] (3) Devices with lower battery power should be given priority to receive charging power so that each device can reach the minimum safe power level as soon as possible.

[0097] (4) Load balancing. When multiple devices are charging at the same time, avoid a single device occupying more than 50% of the total power to ensure fairness and overall efficiency of charging multiple devices.

[0098] In one specific implementation, the system has a maximum discharge power of 8 kW and can simultaneously provide 2 kW of charging power to each of four devices, or 4 kW of charging power to each of two devices. During charging, the system monitors the voltage, current, temperature, and other status parameters of each device in real time, and automatically adjusts the power distribution or stops charging when an abnormality is detected.

[0099] Example 8: Overall System Control Logic

[0100] The overall control flow of the system is as follows:

[0101] (a) Standby state. When the SOC of the energy storage battery is greater than or equal to 20%, the wind-solar hybrid power generation system stops charging, and the wireless charging transmitter module is in standby state, continuously listening for charging request signals from the UAV 33 / unmanned vessel 9.

[0102] (II) Wind and Solar Charging Status. When the BMS battery management system 30 detects that the SOC of the energy storage battery is ≤20%, the wind-solar hybrid power generation system is started for charging. The charging priority is: priority is given to photovoltaic power generation (maximizing photovoltaic output through MPPT). When the photovoltaic power is insufficient to meet the charging demand, wind power generation is started to supplement it. Charging continues until the SOC is ≥95%, then charging stops and the system returns to standby mode. If a charging request is received from the UAV 33 / Unmanned Surface Vessel 9 during the wind and solar charging process, and the current SOC is ≥23%, the wind and solar charging is paused, and priority is given to charging the UAV 33 / Unmanned Surface Vessel 9. Wind and solar charging resumes after the equipment is fully charged.

[0103] (III) Drone / Unmanned Surface Vessel Charging Status. After the drone 33 / unmanned surface vessel 9 lands / landes precisely and the transmitter / receiver modules are aligned, the BMS battery management system 30 checks if the energy storage battery's SOC is ≥23%. If the condition is met, wireless charging is initiated. During charging, the charging status (voltage, current, temperature, SOC, etc.) is monitored in real time. When the device battery is fully charged (SOC ≥98%) or reaches the preset charging level, power output stops. The drone 33's latch 24 rotates to unlock and takes off, while the unmanned surface vessel 9's inflatable airbag 8 deflates and it departs, returning the system to standby mode. If the energy storage battery's SOC drops below 20% during charging, wireless charging is immediately stopped and the wind-solar hybrid power generation system is activated for charging.

[0104] (iv) Abnormal Handling Status. When the BMS battery management system 30 detects any module fault (including but not limited to battery over-temperature, over-current, under-voltage, photovoltaic / wind power controller malfunction, foreign object detection in the wireless charging system, etc.), it immediately disconnects the corresponding fault circuit, issues an audible and visual alarm signal, and uploads the fault information to the remote monitoring platform via the communication antenna. After the fault is resolved, the system automatically resumes normal operation.

[0105] (v) Power display. The energy storage battery cabinet is equipped with a display screen that displays the energy storage battery SOC (percentage), voltage (V), current (A), wind and solar power generation (W), UAV / unmanned surface vessel charging progress (%), and fault information (fault codes and descriptions) in real time, which is convenient for on-site operators to view and maintain.

[0106] Example 9: Deployment of charging piles and mobile power supply

[0107] Under normal operating conditions, charging piles are deployed near facilities with power sources, such as offshore wind farms, photovoltaic power stations, tidal power stations, or lighthouses. They obtain power through cables connected to these facilities to charge energy storage batteries. In one optional embodiment, the charging pile is connected to the distribution cabinet of the offshore wind power platform via a flexible cable, with a cable length of approximately 50-200 meters. The charging pile is fixed to the sea surface within a 100-meter radius of the wind power platform by a bottom anchor 10.

[0108] When drones 33, unmanned surface vessels 9, or other marine electric equipment in other sea areas urgently need power replenishment, a tugboat can be dispatched to tow a fully charged charging pile to the target sea area. Before towing, the anti-collision airbag 2 is retracted by the telescopic boom 14 to reduce towing resistance. During towing, the charging pile remains floating, the energy storage battery system stabilizes the center of gravity, and the anti-collision airbag 2 provides protection. Upon reaching the target sea area, the telescopic boom 14 extends to deploy the anti-collision airbag 2, the anchor 10 is deployed to secure the charging pile, and the wireless charging service is initiated. After the power supply service is completed, the charging pile can be towed back to its original deployment location by the tugboat to continue charging, or towed to the next sea area requiring power.

[0109] In one alternative implementation, multiple charging piles can form a charging pile network, creating a distributed power supply node at sea. Each charging pile can interact with each other through communication antennas, sharing their location information, energy storage SOC information, and equipment charging status information. The network is then uniformly scheduled and managed by a cloud-based scheduling platform, enabling large-scale, long-distance operation support for offshore electric equipment.

[0110] Example 10: Electrical Safety and Protection Design

[0111] Considering the harsh environment of high salt spray and high humidity at sea, this invention incorporates multiple protective designs for electrical safety:

[0112] (i) All electrical equipment (including energy storage battery system, power control box, wireless charging module, etc.) are installed in sealed anti-collision airbags, and the exhaust system is installed in a sealed enclosure. The protection level reaches IP68 and can work for a long time in water depth of 1.5 meters.

[0113] (ii) Both the transmitting and receiving coils of the wireless charging module are encapsulated to withstand salt spray, making them suitable for specific salt spray environments at sea.

[0114] (iii) The BMS battery management system 30 is equipped with a three-level alarm mechanism, corresponding to three levels: early warning, alarm and serious fault, to ensure the safe operation of the battery system.

[0115] (iv) All exposed metal parts are made of 2205 duplex steel or have been treated with heavy-duty anti-corrosion coating, which has excellent resistance to chloride ion stress corrosion cracking.

[0116] (v) The system is equipped with leakage protection, overload protection and short circuit protection functions to ensure the safety of the charging process.

[0117] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0118] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-based integrated charging pile system combining wind, solar, and energy storage, characterized in that, include: The charging pile body (1) is in the shape of an inverted gourd, with the radial dimension of the upper part being greater than that of the lower part. The charging pile body (1) includes a frame and an anti-collision protection device. The anti-collision protection device includes an inflatable anti-collision airbag (2) covering the periphery of the frame and several independent small airbags surrounding the anti-collision airbag. The drone parking platform (3) is located on the top of the charging pile body (1). The drone parking platform (3) is equipped with a visual recognition QR code guidance module (4), a drone centering device, and a drone wireless charging module (5). An unmanned dock (7) is set on both sides of the charging pile body (1), including a clamping arm structure formed by an inflatable airbag (8) for clamping the unmanned boat (9), and an unmanned boat charging module (6) is installed on the unmanned dock. An energy storage battery system is installed in the lower part of the charging pile body (1) to form a gravity-driven hanging structure. The energy storage battery system is electrically connected to the UAV wireless charging module (5) and the unmanned ship charging module (6). An anchor (10) is set at the bottom of the charging pile body (1) to fix the charging pile body (1) to the water surface.

2. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, The frame includes a hollow main shaft (11), at least three telescopic components connected to the outer wall of the main shaft, a support plate (12) connected to the bottom of the main shaft, and a cover (13) connected to the bottom surface of the support plate. The telescopic components include several telescopic rods (14). The inner end of the telescopic rod (14) is connected to the main shaft (11), and the outer end is connected to the anti-collision airbag (2). A support reinforcement (15) is also connected to the connection between the telescopic rod (14) and the main shaft (11) for supporting the telescopic rod (14). The anchor (10) is connected to the bottom of the cover (13).

3. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, The anti-collision airbag (2), the small airbag, and the inflatable airbag (8) are all made of rubber and polyester fiber fabric. The anti-collision airbag (2) is bonded to the telescopic rod (14) with structural adhesive, and the small airbag is bonded to the anti-collision airbag with structural adhesive.

4. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, It also includes a marine organism anti-attachment system, which includes an air pump (16) installed inside the housing (13), an air inlet pipe (17) connected to the upper end of the main shaft (11), and an exhaust pipe (18). The air inlet pipe (17) is connected to the main shaft (11), the air outlet of the air pump (16) is connected to the bottom of the main shaft (11), the air outlet of the air inlet pipe (17) is located inside the anti-collision airbag (2), and a one-way valve (19) is provided on the side of the air inlet pipe (17) near the main shaft; the exhaust pipe... The pipe (18) is provided with two air inlets and one air outlet. The air outlet is passed through the anti-collision airbag (2). One of the air inlets is connected to the inside of the anti-collision airbag (2), and the other air inlet is used to connect to the drainage system. The exhaust pipe (18) is provided with a solenoid valve (20), and the solenoid valve (20) is located inside the anti-collision airbag (2). The solenoid valve (20) is used to control the opening and closing of the exhaust pipe (18). The air pump (16) periodically inflates and deflates the anti-collision airbag (2), causing the anti-collision airbag (2) to periodically expand and contract.

5. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 4, characterized in that, The drainage system includes a water collection tank (21) installed in the housing (13) and a water level sensor (22) installed in the water collection tank. A venturi tube is connected to one air inlet of the exhaust pipe (18). The negative pressure end of the venturi tube is connected to the water collection tank (21) to discharge the water inside the charging pile body (1) during the exhaust process.

6. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, The drone centering device includes at least four sets of circumferentially arranged linear drive mechanisms and flexible contacts (23) connected to the output end of the linear drive mechanisms. The flexible contacts (23) are controlled by the linear drive mechanisms to move linearly and push the drone to center. The drone centering device also includes rotary motors set on both sides of the drone wireless charging module and latches (24) connected to the output end of the rotary motors. The rotary motors are preset in the drone landing platform (3). The rotary motors drive the latches (24) to rotate, so that the latches (24) can rotate onto the drone's feet to lock the drone during charging. The drone landing platform (3) is equipped with an RTK GPS antenna for receiving positioning signals. The drone lands on the drone landing platform (3) through the cooperation of the drone visual positioning system and the visual recognition QR code guidance module (4). The drone wireless charging module (5) is set at the center of the drone landing platform (3). The drone landing platform (3) is also equipped with a communication antenna and a weather station (25).

7. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, The unmanned dock (7) is V-shaped, and the inflatable airbag (8) is set inside the V-shaped opening. A linear displacement device (26) is installed on the unmanned dock (7), and a lifting device (27) is installed on the linear displacement device. The unmanned ship wireless charging module (6) is installed at the output end of the lifting device (27). The unmanned ship wireless charging module (6) is driven to move horizontally by the linear displacement device (26) and to move vertically by the lifting device (27) so that it is aligned with the charging port of the unmanned ship. A pressure sensor is installed on the unmanned ship wireless charging module (6).

8. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, The energy storage battery system includes 4 battery packs (28), each battery pack (28) consists of 16 3.2V / 50Ah lithium iron phosphate cells connected in series, with a total capacity of 200Ah, a total energy of 9.6KWh, a rated power of 5KW, and a maximum discharge power of 8KW; The energy storage battery system also includes an intelligent power distribution module (29) and a BMS battery management system (30). The intelligent power allocation module (29) is used to dynamically allocate charging power according to the device type, battery power and charging demand. The intelligent power allocation module is configured such that: the charging priority of UAV is higher than that of UAV ship, and the priority of emergency mission equipment is higher than that of regular equipment. The BMS battery management system (30) is configured as follows: when the SOC of the energy storage battery is ≤20%, the wind-solar hybrid power generation system is started to charge, and when the SOC is ≥95%, charging is stopped; when the SOC of the energy storage battery is ≥23%, wireless charging is allowed to start, and when the SOC is ≤20% during the charging process, wireless charging is stopped and the wind-solar hybrid power generation system is started to charge.

9. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, The energy storage battery system is connected to a power control box, which contains an inverter / converter unit, an MPPT controller, and a combiner box for connecting to wind power generation equipment, photovoltaic power generation equipment, and / or tidal power generation equipment.

10. The integrated wind, solar, and energy storage charging pile system based on a water surface according to claim 1, characterized in that, Both the unmanned aerial vehicle wireless charging module (5) and the unmanned vessel wireless charging module (6) adopt electromagnetic induction wireless charging technology, and the total charging efficiency of the system is not less than 80%.

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