Description:FIELD OF THE INVENTION

[0001] The present invention relates to a floating renewable energy harvesting system for marine applications that harnesses renewable energy from marine environments by efficiently converting natural wave motion and sunlight into usable electrical power, providing a sustainable solution for powering offshore equipment while adapting to changing weather conditions.

BACKGROUND OF THE INVENTION

[0002] Marine energy harvesting systems face significant challenges due to the harsh and dynamic aquatic environment, where biofouling, the accumulation of marine organisms on submerged surfaces severely impacts performance and efficiency. This biological buildup increases drag, reduces energy conversion efficiency and necessitates frequent manual cleaning, which is costly and labor-intensive. Additionally, fluctuating wave conditions and variable sunlight availability demand adaptive solution to optimize energy capture. Navigating and servicing remote marine assets with human intervention further reduces operational efficiency and safety. Ensure to enhance overall effectiveness and durability of marine energy solutions in remote or challenging environments.

[0003] Traditional tools for floating renewable energy harvesting in marine applications include fixed offshore wind turbines, anchored wave energy converters, tidal turbines, diesel-powered generators, manual docking systems and conventional solar panels, which require extensive maintenance and human intervention in harsh marine environments leading to increased labor costs, safety risks and operational downtime. Additionally, navigating to and maintaining remote marine assets using conventional propulsion and docking tools are inefficient and prone to errors, especially under harsh weather and sea conditions. Biofouling and environmental wear further complicate maintenance efforts, demanding constant cleaning and repairs that are labor-intensive and time-consuming. Such limitations hinder the ability to provide consistent, sustainable energy supply and support for marine operations, highlights the need for a solution that reduce dependence on manual tools and enhance reliability in challenging marine settings.

[0004] US2024208619A1 discloses a semi-submersible service vessel for a floating installation has a hull and a ballasting system. The ballasting system is arranged to selectively lower the hull to a first draft and raise the hull to a second draft. The second draft is smaller than the first draft. At least one submersed elongate lifting fork is fixed to the hull and is configured to extend across the underside of the floating installation and engage the underside of the floating installation when the hull is raised from the first draft to the second draft. Wherein the at least one lifting fork is arranged to lift the entire floating installation when the hull is raised from the first draft to the second draft, and a method of servicing a floating installation with a semi-submersible service vessel.

[0005] WO2017061968A1 discloses a photovoltaic energy vessel having collapsible and floating properties, which provides large surface are photovoltaic surfaces in order to provide the energy that is needed, to meet the power requirements having collapsible features without changing the genera design of vessels and which can wind the flexible or collapsible products, when necessary, when said vessel is approaching a port.

[0006] Conventionally, many systems have been developed to harness renewable marine energy for marine applications, but these devices lack autonomous adaptability to changing environmental conditions, efficient energy storage and distribution, real-time monitoring, and autonomous navigation for servicing remote assets. Additionally, these existing devices require frequent manual maintenance and struggle with biofouling and harsh weather, resulting in reduced reliability, higher operational costs and limited continuous energy supply.

[0007] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a system capable of autonomously harvesting and managing renewable energy from marine sources by adapting to environmental changes and efficiently storing and distributing power to reduce manual intervention, enhance operational reliability, ensure continuous energy supply, provide safe navigation and servicing of marine equipment and minimize maintenance through self-cleaning capabilities in harsh offshore conditions.

OBJECTS OF THE INVENTION

[0008] A principle object of the present invention is to develop a system that is capable of autonomously harvesting and distributing renewable energy in marine environments, while intelligently adapting to changing conditions to ensure efficient power generation and performance, as well as navigating and servicing equipment without human intervention.

[0009] Another object of the present invention is to develop a system that is capable of autonomously harvesting renewable energy from both wave motion and solar radiation, enabling consistent and sustainable power generation in diverse marine environments while minimizing reliance on external energy sources.

[0010] Another object of the present invention is to develop a system that is capable of autonomous navigation and obstacle avoidance in dynamic marine environments through real-time environmental analysis, ensuring safe maneuvering and accurate servicing of remote marine equipment with minimal human intervention.

[0011] Yet another object of the present invention is to develop a system that is capable of maintaining optimal performance and longevity by preventing biofouling on submerged surfaces through automated cleaning that detects and removes marine growth, for reducing maintenance frequency, improving energy efficiency and ensuring consistent operational reliability in harsh aquatic environments.

[0012] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0013] The present invention relates to a floating renewable energy harvesting system for marine applications that autonomously monitors environmental factors and dynamically adjusts energy conversion processes to maximize output and maintain stability, ensuring continuous and reliable power generation in varying sea states.

[0014] According to an embodiment of the present invention, a floating renewable energy harvesting system for marine applications comprises of a body configured with a circular buoyant member at a base portion featuring multiple sealed air compartments for buoyancy and variable ballast tanks that adjust buoyancy and stability based on wave conditions, a sensor suite is installed along the outer surface of the body for detecting height of waves, sunlight intensity, inclination, motion, and to track real-time location along with distance from external marine equipment, the sensor suite includes at least a wave height sensor, a wind sensor, a solar irradiance sensor, an inertial measurement unit (IMU) and a gyroscope along with a GPS module and a LiDAR module integrated with the imaging camera for detecting nearby obstacles or marine equipment allowing to autonomously navigate and avoid collisions while moving to serve marine equipment in need of charging, an artificial intelligence-based imaging camera is mounted on the body and synced with the sensor suite to determine wave conditions and sunlight intensity for determining whether to prioritize wave harvesting or solar energy harvesting, a wave amplification structure is mounted on a lower periphery of the buoyant member comprising a series of curved intake fins arranged equidistantly for directing wave motion into a converging channel to increase the pressure differential on the hydraulic pistons for enhanced energy harvesting during moderate waterbody conditions, a hydraulic piston assembly is integrated into the circular buoyant member to convert the oscillation of waves into mechanical energy that drives a rotor of a generator connected with the hydraulic piston assembly for generating electrical energy, a plurality of solar panels are mounted on hinged wings extending from an upper portion of the body and operable via a folding arrangement to deploy outward for solar energy harvesting or fold inward for protection during unfavourable weather conditions, the hinged wings are mounted using marine-grade hinges and a four-bar linkage assembly with each wing equipped with torsion spring hinges and locking units to ensure reliable deployment and retraction, an energy storage unit is linked with the solar panels and generators for storing the harvested energy from waves and solar sources.

[0015] According to another embodiment of the present invention, the system further comprises of microcontroller to receive data from the sensor suite and control the propeller assembly for positioning, the hinged wings for the solar panels, energy harvesting priorities between wave and solar modes and energy distribution to the charging ports based on environmental conditions and detected external marine equipment, the microcontroller is configured to receive service requests from external marine equipment via a user interface installed in a computing unit wirelessly linked with the microcontroller for calculating navigation routes using the GPS and LiDAR data and autonomously manoeuvre the body via the propelling assembly to the requesting equipment for charging, at least two propeller assembly are mounted to the buoyant member via a retractable assembly housed in a cavity, the propeller assemblies being extendable into the water for maneuvering and orientation control and retractable when not in use, a docking assembly is arranged with the body comprising multiple locking units and waterproof charging ports for providing energy to external marine equipment, the docking assembly includes load and current sensors for detecting abnormal conditions such as overheating, overloading or short-circuiting based on which the microcontroller regulates charging conditions in unsafe environments, a rubberized bumper ring is installed around the outer rim of the body to absorb impacts and the body is configured to enter a low-exposure mode by retracting solar panels and docking arms during detected storms, a self-cleaning module is arranged on the buoyant member for preventing biofouling on the submerged sections of the buoyant member, the self-cleaning module includes a ring having multiple nylon-bristles attached with a hydraulic piston that provides movement to the ring for scrubbing against the surface of the buoyant member and a plurality of high-pressure jets activated upon detection of biofouling by an integrated optical sensor coupled with a colour sensor.

[0016] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of a floating renewable energy harvesting system for marine applications.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention relates to a floating renewable energy harvesting system for marine applications that is self-navigating, optimizes energy harvesting based on real-time environmental data and maintains operational efficiency through automated cleaning of biological growth on submerged surfaces, as well as a protective arrangement to extend service life and reduce maintenance requirements.

[0019] Referring to Figure 1, an isometric view of a floating renewable energy harvesting system for marine applications is illustrated, comprising a body 101 configured with a circular buoyant member 102, an artificial intelligence-based imaging camera 103 mounted on the body 101, at least two propeller assembly 104 mounted to the buoyant member 102 via a retractable assembly 105, a hydraulic piston assembly 106 integrated into the circular buoyant member 102, a plurality of solar panels 107 mounted on hinged wings 108 with a four-bar linkage assembly 109 installed on the body 101, a series of curved intake fins 110 mounted on a lower periphery of the buoyant member 102, multiple waterproof charging ports 111 arranged with the body 101, a ring 112 attached with a hydraulic piston 113 arranged on the buoyant member 102, a plurality of high-pressure jets 114 installed on the buoyant member 102, a rubberized bumper ring 115 installed around the outer rim of the body 101.

[0020] The system disclosed herein comprises of a body 101 that is configured to secure in the waterbody, serves as a stable base and core component of the system and is made from strong and lightweight materials which includes but not limited to hardened steel, Aluminum alloy, hard fiber and composite material to withstand weight, handle loads and surface irregularities, while providing a reliable foundation.

[0021] The body 101 is configured with a circular buoyant member 102 at base, to enhance stability and flotation in marine environments. The circular buoyant member 102 is subdivided into multiple sealed air compartments, ensuring redundancy and safety in case of localized damage or leakage for maintaining positive buoyancy. Integrated with the member 102 are variable ballast tanks developed to dynamically adjust the overall buoyancy and center of gravity of the body 101. These tanks are selectively filled with water or evacuated using pumps, allowing the structure to adapt to changing wave conditions in real-time.

[0022] During calm seas, the ballast tanks remain lightly filled to maintain high buoyancy and efficient floating; in rougher conditions, ballasting lowers the center of gravity, improving stability and minimizing pitch and roll. The circular geometry of the base ensures uniform distribution of buoyant forces and resistance to directional tipping, makes ideal for floating platforms, offshore equipment or marine devices. This configuration offers a robust, adaptable solution for maintaining stability and operational reliability in variable marine environments.

[0023] A user is required to activate the system manually by pressing a button installed on the body 101 and linked with an inbuilt microcontroller associated with the system. The button is a type of switch that is internally connected with the system via multiple circuits that upon pressing by the user, the circuits get closed and starts conduction of electricity that tends to activate the system and vice versa.

[0024] An artificial intelligence-based imaging camera 103 is mounted on the body 101 and synchronized with a sensor suite to continuously monitor the surrounding environment. Upon activation of the system, the microcontroller activates the artificial intelligence-based imaging camera 103 to assess wave conditions and sunlight intensity. The artificial intelligence-based imaging camera 103 comprises of an image capturing module including a set of lenses that captures multiple high-resolution images of surrounding environment to determine wave conditions and sunlight intensity, then the captured images are stored within memory of the artificial intelligence-based imaging camera 103 in form of an optical data.

[0025] The artificial intelligence-based imaging camera 103 incorporates a processor that is fed with an artificial intelligence protocol which operates by following a set of predefined instructions to process optical data and perform tasks autonomously. Initially, captured images are collected and input into a database, which then employs protocol to analyze and interpret the optical data. The processor of the artificial intelligence-based imaging camera 103 via the artificial intelligence protocol processes the optical data and extracts the required data from the captured images. The extracted data is further converted into digital pulses and bits and transmits to the microcontroller to assess key external conditions such as wave height, frequency, direction, and sunlight intensity.

[0026] The sensor suite disclosed above is installed along the outer surface of the body 101 to enable real-time monitoring of environmental and positional parameters crucial for efficient marine operation. The sensor suite includes at least a wave height sensor to measures the vertical displacement of water surfaces around the body 101, capturing real-time data on wave height, frequency and pattern for assessing sea state and for optimizing dynamic stability of the body 101 and energy harvesting functions. The wave height sensor works by emitting high-frequency sound pulses from a transducer mounted above the water surface, normally on a stable part of the body 101. The sensor sends an ultrasonic pulse downward toward the water, and a receiver within the transducer measures the time takes for the echo to return after reflecting off the water surface. This time-of-flight is used to calculate the distance between the sensor and the water surface. The microcontroller processes the signal and computes the real-time wave height by comparing changes in distance over time.

[0027] The sensor suite also includes a wind sensor for monitoring wind and airflow conditions that directly influence wave formation. The wind sensor works by using a heated sensing element, commonly a fine wire, whose temperature is maintained above ambient levels. As wind flows over this element, cools down proportionally to the wind speed, causing a change in voltage. A constant current source supplies power to the heating element, while the sensor circuit measures the resulting voltage caused by cooling. This analog signal is then sent to a signal conditioning circuit that amplifies and filters the data before transmitting to the microcontroller. The microcontroller then processes this data to determine the wind speed in real time.

[0028] The sensor suite further includes a solar irradiance sensor for monitoring the intensity of sunlight and optimizing solar energy harvesting operations. The solar irradiance sensor works by converting sunlight thermal energy into an electrical current using a photodiode. When solar radiation hits the photodiode’s sensitive surface, photons generate electron-hole pairs, producing a current proportional to the light intensity. A diffuser, usually made of frosted glass or Teflon, is placed above the photodiode to evenly scatter incoming light, allowing the sensor to capture both direct and diffuse sunlight uniformly. The sensor circuit includes a trans impedance amplifier that converts the photodiode’s current into a measurable voltage signal and transmits to the microcontroller to applies calibration and interprets the data as a measurable value representing sunlight intensity and continuously evaluates these values in real time by comparing them to predefined thresholds values stored in database to determine sun exposure levels.

[0029] The sensor suite furthermore includes an inertial measurement unit (IMU) and a gyroscope, which work together to provide precise data on orientation, motion and angular velocity of the body 101. The IMU consists of accelerometer measure linear acceleration along one or more axes, detecting shifts in position or movement caused by gravity or external forces, gyroscope measure angular velocity for how quickly the body 101 is rotating around, essential for detecting tilt or rotational movement and magnetometer measure the strength and direction of the Earth’s magnetic field, helping to correct orientation drift These sensors work together to measure acceleration, angular velocity and orientation in real time, which is crucial for maintaining stability and adjusting energy harvesting components in response to wave-induced motion.

[0030] The accelerometer disclosed above measures linear acceleration using a microelectromechanical arrangement consisting of a suspended proof mass attached to springs within a silicon chip. When the body 101 experiences motion, the proof mass shifts slightly from rest position, causing a change in capacitance between fixed and movable electrodes. This capacitance variation is detected by electronic circuits and converted into an electrical signal proportional to the acceleration along the body axis. The signal is processed by IMU to determine shifts in position or movement caused by gravity or external forces.

[0031] The gyroscope disclosed above measures angular velocity using a vibrating structure or spinning mass that resists changes in orientation due to the conservation of angular momentum. In MEMS gyroscopes, a tiny vibrating element of a resonating mass suspended by springs detects rotation. When the body rotates, Coriolis forces act on the vibrating mass, causing a measurable shift in vibration pattern or displacement. This shift changes the capacitance between electrodes surrounding the mass, which is detected by integrated circuits and converted into an electrical signal proportional to the rate of rotation around the sensor’s axis. The signal is processed by IMU to determine tilt or rotational movement.

[0032] The magnetometer disclosed above works measuring the strength and direction of magnetic fields, where a thin conductive material changes electrical resistance in response to an external magnetic field. As the body 101 interacts with the Earth's magnetic field, these changes in resistance are converted into voltage signals, which are processed to determine the magnetic field’s vector components along three axes, by comparing these components, the magnetometer calculates the body orientation relative to magnetic north, effectively serving as a digital compass. This directional data is essential for correcting drift in accelerometer and gyroscope readings. Magnetometers enhance orientation accuracy by providing heading information and helps to maintain correct alignment, compensate for rotational errors during body movement. The IMU's internal processor combines these data and transmits to the microcontroller for determining change in motion and orientation for enhancing responsiveness and operational precision.

[0033] A hydraulic piston assembly 106 is integrated into the circular buoyant member 102 of the body 101, to harness the vertical oscillations of ocean waves and convert them into usable mechanical energy. Upon receiving the real-time data from the sensor suite including wave height, motion inclination and wind speed, the microcontroller assesses current sea conditions and then actuates the hydraulic piston assembly 106 connected to a rotor of a generator for converting the mechanical energy into electrical power. The hydraulic piston assembly 106 consists of a piston housed within a cylinder, where wave-induced motion drives the piston back and forth by pressurizing hydraulic fluid on either side.

[0034] As the piston moves, forces the hydraulic fluid through high-pressure lines to the generator’s rotor that converts mechanical energy into electromagnetic energy, consists of a shaft, a core made of laminated iron to reduce energy losses and permanent magnets mounted on the core. When the rotor is driven the piston assembly 106, spins inside the stator, the stationary part of the generator. As the rotor turns, magnetic field interacts with the stator windings, inducing an alternating current (AC) through electromagnetic induction. This process converts the linear oscillations of waves into continuous rotary motion, enabling consistent electrical power generation.

[0035] A wave amplification structure is mounted along the lower periphery of the circular buoyant member 102, to enhance the efficiency of wave energy harvesting during moderate sea conditions. The wave amplification structure comprises a series of curved intake fins 110 arranged equidistantly around the circumference, each fin 110 oriented to direct incoming wave motion. The curvature and positioning of the fins 110 are optimized to funnel and concentrate wave energy for increasing the velocity and force of water. As waves are compressed into the narrower space, the pressure differential across the hydraulic piston assembly 106 is amplified, resulting in greater force being exerted on the pistons during each wave cycle. This enhanced pressure significantly boosts the displacement of hydraulic fluid, driving the hydraulic motor more effectively and increasing the rotational speed of the generator rotor for improving overall electrical output. By leveraging natural hydrodynamic principles, the wave amplification structure ensures that even in less energetic conditions, sufficient force is generated to maintain efficient power conversion.

[0036] A plurality of solar panels 107 is mounted on hinged wings 108 extending from the upper portion of the body 101, to optimize solar energy harvesting while offering protection during unfavorable marine conditions. These hinged wings 108 are connected using marine-grade hinges to withstand harsh saltwater environments and stress. The deployment and retraction of the wings 108 are controlled by a robust folding arrangement that consists of a four-bar linkage assembly 109, which enables smooth, synchronized movement of the panels 107 between extended and folded positions. Each wing 108 is further equipped with torsion spring hinges that provide controlled resistance and assist in both deployment and retraction, ensuring stable positioning even under fluctuating wind or wave forces. Integrated locking units secure the wings 108 firmly in place during operation or when stowed, preventing unintended movement due to vibrations or external impacts. Upon detecting favorable weather and high solar irradiance, the microcontroller actuates the four-bar linkage assembly 109 to allow the wings 108 to maintain a consistent angle for maximizing energy harvesting.

[0037] The four-bar linkage assembly 109 consists of four rigid bars connected by pivot joints to form a closed-loop arrangement that controls the folding and unfolding of the hinged wings 108. The assembly 109 includes a fixed base link attached to the body 101, a coupler link a rocker link connected to the wing 108 and a driver link powered by an electric motor. When the motor activates, rotates the driver link, which transmits motion through the coupler and rocker, causing the wing 108 to move smoothly outward or inward in a controlled arc. The linkage ensures synchronized, stable motion, maintaining the correct angular orientation of the wings 108 throughout the movement. Torsion springs assist with motion by providing passive resistance and reducing motor load, while locking units secure the wings 108 in the deployed or folded position. The locking units consist of a spring-loaded latch and a locking pin to secure the hinged wings 108 in place during deployment or retraction. When the wing 108 reaches desired position, the latch engages, which is held under tension by the spring to ensure firm contact. The locking pin then slides into a corresponding slot, preventing any unintended movement by physically blocking rotation of the wing 108. This precise arrangement enables efficient, repeatable wing 108 deployment and retraction suitable for marine energy.

[0038] An energy storage unit is linked to both the solar panels 107 and the wave energy generators, to efficiently store the harvested electrical energy from these renewable sources. This unit consists of rechargeable battery that provide high energy density and rapid charge-discharge capabilities. As electrical energy is generated either from solar panels 107 during daylight or from the hydraulic-driven generators capturing wave motion the energy storage unit accumulates and stabilizes the power output, smoothing fluctuations caused by varying environmental conditions. The storage unit manages the flow of electricity, ensuring consistent availability for onboard component or external use even when energy generation is intermittent. Integrated power management circuitry protects the storage components from overcharging, deep discharge, and thermal stress, thereby extending their lifespan and maintaining safety.

[0039] At least two propeller assemblies 104 are mounted to the buoyant member 102 via retractable assembly 105 housed within dedicated cavities in the structure. These assemblies are developed to extend downward into the water during active operation for precise maneuvering and orientation control of the body 101, particularly useful in dynamic marine environments or when repositioning is required. The propeller assembly 104 consists of an electric motor-driven propeller connected to a retractable assembly 105, to provide thrust for maneuvering or orientation control. When adverse weather conditions such as high waves or strong currents are detected, the microcontroller actuates the retractable assembly 105 to extend the propeller assembly 104 downward into the water for operational use. The retractable assembly 105 consists of nested tubular sections that slide within each other, connected to a pneumatic unit that includes an air compressor, a cylinder with a piston and solenoid valve.

[0040] The air compressor generates compressed air, which passes through a solenoid valve and enters into the air cylinder. The air pressure inside the cylinder causes the piston to push the rod outward, causing multiple nested tubular sections to extend for positioning the propeller assembly 104 into the water for operation. Once positioned, the microcontroller actuates the propeller assemblies for generating thrust in multiple directions, allowing to adjust body position or orientation with high precision. The propeller assemblies consist of an electric motor, propeller blade set and drive shaft. The brushless motor, generates rotational motion when powered, which is transferred through the drive shaft directly to the propeller blades. The blades, developed with hydrodynamic profiles, convert the motor’s rotational energy into thrust, enabling forward, reverse or lateral movement.

[0041] A GPS (Global Positioning System) module is integrated with the microcontroller to provide real-time positioning and navigation data essential for autonomous operation and location tracking. The GPS module works by receiving time-stamped radio signals from at least four satellites in the GPS constellation. The module contains a high-sensitivity antenna that captures these signals and a radio frequency (RF) front-end that filters and amplifies them. The signals are passed to a baseband processor, which decodes the satellite data, including each satellite’s position and the exact time the signal was sent. By calculating the time delay between transmission and reception, the module determines distance from each satellite. Using trilateration, the module computes precise location in terms of latitude, longitude and altitude. This data is formatted into standard protocols (like NMEA) and transmitted to the microcontroller.

[0042] A LiDAR (Light Detection and Ranging) module is mounted on the buoyant member 102 and integrated with the imaging camera 103, to enable high-resolution environmental scanning for obstacle detection and collision avoidance. The sensor comprises a laser emitter that emits rapid light pulses which are directed into the surrounding environment using a rotating mirror in a sweeping pattern to cover a wide field of view. When these light pulses strike an object, such as a person or surface, they reflect back to the sensor and are captured by the photodetector and converts them into electrical signals.

[0043] The circuit precisely measures the time between emission and detection of each pulse, using time-of-flight to calculate distance and these data points are processed to create a real-time 3D map of the nearby environment, identifying the position, size and shape of obstacles or marine equipment. This spatial data is fused with visual input from the imaging camera 103, providing the microcontroller with a comprehensive understanding of the surroundings. The microcontroller uses this combined information to autonomously plan safe navigation paths, adjust course, and avoid collisions while maneuvering. This is especially critical when the body 101 is tasked with approaching and servicing marine equipment in need of charging.

[0044] A user interface is installed within the computing unit to receive service requests from external marine equipment. The user interacts with the interface through a touch screen, keyboard or other input methods available on the computing unit. The computing unit mentioned herein includes, but is not limited to smartphone, tablet or laptop that comprises a processor that receives data from the microcontroller, stores, processes and retrieves the output in order to display on the computing unit.

[0045] A communication unit for establishing a wireless connection between the microcontroller and the computing unit. The communication unit used herein includes, but not limited to Wi-Fi (Wireless Fidelity) module, Bluetooth module, GSM (Global System for Mobile Communication) module. The communication unit used herein is preferably a Wi-Fi module that is a hardware component that enables the microcontroller to connect wirelessly with the computing unit. The Wi-Fi module works by utilizing radio waves to transmit and receive data over short distances. The core functionality relies on the IEEE 802.11 standards, which define the protocols for wireless local area networking (WLAN). Once connected, the unit allows the microcontroller to send and receive data through data packets. Upon receiving a request for charging, the microcontroller processes the information and begins calculating an optimal navigation route by integrating real-time data from the GPS module and LiDAR sensor. The GPS provides precise global positioning to determine current location and destination coordinates of the body 101.

[0046] While the LiDAR delivers detailed environmental mapping and obstacle detection to ensure safe passage. Using this combined data, the microcontroller generates a dynamic route that accounts for surrounding obstacles, wave conditions, and marine traffic. The microcontroller then regulates the propeller assemblies, adjusting thrust and direction to navigate smoothly and efficiently toward the requesting equipment. The microcontroller continuously updates path in response to changing environmental factors detected by the sensors, ensuring collision-free maneuvering. Once in proximity, the body 101 positions accurately to enable effective charging operations. This enables responsive service delivery, maximizing operational efficiency and safety in complex marine environments.

[0047] A docking assembly is arranged with the body 101 to securely connect and provide energy to external marine equipment. The docking assembly includes a locking unit which are positioned to engage with corresponding fixtures on the external equipment, ensuring a stable, precise and reliable connection during the charging process. Each locking unit employs spring-loaded latches and locking pins that secure the equipment firmly in place, preventing movement caused by waves or currents and enabling consistent electrical contact. The spring-loaded latch consists of a pivoting arm held under tension by a coil spring, allowing to snap into place when engaged with a corresponding notch on the external equipment. When the latch is pushed or pulled, the spring compresses, permitting movement, and then releases to lock firmly once aligned. The locking pin complements this by sliding through aligned holes in both the docking assembly and the external equipment, physically preventing separation.

[0048] The docking assembly also integrated with a waterproof charging ports 111 that facilitate safe and efficient transfer of electrical energy, developed with sealed connectors to withstand harsh marine environments, including exposure to saltwater, moisture, and debris. These ports 111 utilize corrosion-resistant materials and robust sealing to maintain long-term durability and prevent electrical faults. The docking assembly to accommodate a range of marine equipment sizes and shapes, providing flexibility and compatibility. Together, the locking units and waterproof charging interfaces ensure a secure, weatherproof and efficient energy transfer, allowing the body 101 to deliver reliable power to external devices while maintaining operational integrity in challenging oceanic conditions.

[0049] The docking assembly incorporates load and current sensors strategically placed to monitor the electrical conditions during the charging process, enabling real-time detection of abnormal situations such as overheating, overloading, or short-circuiting. The Load sensors used for detecting overloading commonly consist of strain gauges which are bonded to a structural element within the docking assembly that experiences stress during electrical load transmission. When the load increases beyond normal limits, the structural element deforms slightly, causing the strain gauges to change their electrical resistance. This change is converted into an electrical signal by the signal conditioning circuitry, which amplifies and filters the signal for accuracy. The conditioned signal is then transmitted to the microcontroller to analyzed in real time. If the sensor detects load values exceeding predefined thresholds, the microcontroller initiates protective measures, such as reducing current or shutting down the charging process to prevent damage.

[0050] The current sensor disclosed above detects abnormal conditions like overheating and short-circuiting using a sensing element a Hall-effect sensor that consists of a thin semiconductor plate, a constant current source, voltage measurement terminals and a magnetic field source. When current flows through the semiconductor plate, exposed to a perpendicular magnetic field, the moving charge carriers experience a Lorentz force, causing them to accumulate on one side of the plate. This creates a measurable voltage difference, called the Hall voltage, across the voltage terminals perpendicular to the current flow.

[0051] The magnitude of this voltage is directly proportional to the strength of the magnetic field passing through the sensor. The sensor’s electronic circuitry then amplifies and processes this Hall voltage to produce an output signal representing the magnetic field intensity which corresponds to the current flowing through a nearby conductor, enables real-time, measurement of electrical current. The output is then transmitted to the microcontroller that continuously monitors the current values in real time; if the current exceeds safe operational limits indicating potential overheating or a short circuit, triggers protective responses such as reducing or cutting off the current flow to prevent damage. This regulation protects both the docking assembly and the connected marine equipment.

[0052] An optical sensor coupled with a color sensor to detect biofouling on the surface of the buoyant member 102 or other marine equipment by analyzing changes in light reflection and color characteristics. The optical sensor consists of a light source, commonly an LED or laser diode, a photodetector and signal processing circuitry. The light source emits a controlled beam of light directed toward the target surface. When the light strikes the surface, reflects back varying amounts depending on the surface’s texture, color, and cleanliness. The photodetector, such as a photodiode or phototransistor, captures the reflected light and converts into an electrical signal proportional to the light intensity. This raw signal is then amplified and filtered by the signal processing circuitry to reduce noise and improve accuracy. The processed signal is sent to the microcontroller to analyzes changes in reflected light intensity to detect surface conditions such as contamination or biofouling.

[0053] The color sensor disclose above consists of a light source, normally a white LEDs, an array of photodiodes covered with color filters (red, green, and blue), and signal processing circuitry. The white LEDs illuminate the target surface evenly, causing to reflect light of various wavelengths. The photodiodes detect the intensity of reflected light through their specific color filters, measuring the red, green, and blue components separately. Each photodiode converts the light intensity into an electrical signal proportional to the amount of that color reflected. These signals are then amplified and processed to calculate the precise color profile of the surface. The processed data is sent to the microcontroller, which compares against reference values stored in the database to identify color changes that indicate conditions such as biofouling or contamination.

[0054] A self-cleaning module is installed at the base of the buoyant member 102 to prevent and remove biofouling from the submerged sections, ensuring optimal performance and longevity. The self-cleaning module features a ring 112 fitted with multiple durable nylon bristles arranged around circumference and connected to a hydraulic piston 113, allowing to effectively scrub the surface of the buoyant member 102. Upon detecting biofouling, the sensors send signals to the microcontroller, which actuates the hydraulic piston 113 to move the ring 112, applying consistent scrubbing against the surface and effectively loosening accumulated biological material such as algae, barnacles and microbial films. The hydraulic piston 113 works on fluid dynamics, using pressurized hydraulic fluid to generate force and control movement. The piston 113 is housed in a cylinder, with one side connected to the ring 112.

[0055] When hydraulic fluid is pumped into the cylinder via a control valve, enters one side of the piston 113, creating pressure that forces the piston 113 to move linearly and drive the ring 112 in a scrubbing motion against the surface of the buoyant member 102. Simultaneously, the microcontroller actuates the ring 112 fitted with multiple durable nylon bristles to thoroughly clean the surface. The ring 112 fitted with multiple durable nylon bristles consists of a motor connected to the ring 112 via a gear drive, providing the necessary torque to rotate the ring 112 at a consistent speed for effective cleaning of biofouling from the surface.

[0056] The self-cleaning module also includes a plurality of high-pressure jets 114 to spray water at intense pressure, flushing away biofouling, loosened debris and preventing reattachment. The high-pressure jets 114 are fluidly connected to a water storage reservoir through a conduit and attached to the conduit via a swivel joint, allowing precise control over angle and orientation of the jets 114. Upon detecting changes in surface reflectivity or color indicative, the sensors signal the microcontroller to actuates the swivel joint to enable targeted spraying across various surface angles. The swivel joint consists of a motor connected to a gear drive that controls the rotation of the jets 114. An inner rotating shaft, housed within a durable casing with internal bearings, reduces friction and ensures smooth motion.

[0057] When activated, the motor drives the gear drive to rotate the joint, allowing the attached jet 114 to adjust their orientation dynamically, ensuring comprehensive coverage and effective cleaning of hard-to-reach areas. Simultaneously, the microcontroller actuates the high-pressure jets 114 to spray high-pressure water to remove contaminants before they firmly attach. The high-pressure jets 114 are integrated with a pump which consists of a motor, pump chamber, inlet and outlet valves and connecting tubing. The motor drives a diaphragm to creates suction in the pump chamber, drawing water to pressurized and pushed through the outlet valve toward nozzle of the jet 114 significantly increasing pressure for effective application, then an electric current passes through a solenoidal coil which winds around plunger, generates a magnetic field that pulls the plunger upward.

[0058] This motion opens internal valve of the jet 114, allowing water to pass through internal valve to focus the pressurized water into a concentrated, high-velocity stream that effectively dislodges debris and biofouling from the surface. This cleaning approach enhances hydrodynamic efficiency and prolongs the operational life of the buoyant member 102 in challenging marine environments.

[0059] A rubberized bumper ring 115 is installed around the outer rim of the body 101 to serve as a shock-absorbing buffer that protects the structure from impacts during collisions with floating debris, vessels or marine equipment. The bumper ring 115 is made from durable, marine-grade elastomeric material, the bumper ring 115 is developed to withstand repeated compression and deformation without cracking or losing elasticity, ensuring long-term protection in harsh ocean conditions. In addition to passive impact protection, the body 101 is equipped with an active defense arrangement that allows to enter a low-exposure mode during detected storms or adverse weather conditions. Upon receiving environmental data indicating high wave activity or wind speeds, the microcontroller initiates the retraction of all extendable components, including solar panel wings 108 and docking arms. These components fold securely, minimizing drag, reducing the risk of damage. This dual-layered safety approach enhances the structural resilience and operational lifespan of the body 101.

[0060] The microcontroller configured to receive continuous input from the integrated sensor suite, which includes wave height sensors, solar irradiance sensors, IMU, gyroscope, wind sensors and GPS module. Using the real-time data, the microcontroller controls the propeller assemblies for precise positioning and orientation, adjusting thrust direction and intensity to maintain stability or navigate toward external marine equipment. Simultaneously, operates the hinged wings 108 carrying solar panels 107, deploying or retracting them based on sunlight availability and weather conditions. The microcontroller also prioritizes energy harvesting modes by actuating the hydraulic piston assembly 106 for wave energy during rough sea states or switching to solar energy harvesting in calm, sunlit conditions. Additionally, regulates energy distribution from the storage unit to the waterproof charging ports 111, activating charging only when docked equipment is properly connected and conditions are safe. This coordination optimizes energy efficiency, safety and functional reliability in dynamic marine environments.

[0061] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , C , C , Claims:1) A floating renewable energy harvesting system for marine applications, comprising:
a) a body 101 configured with a circular buoyant member 102 at a base portion, the buoyant member 102 featuring multiple sealed air compartments for buoyancy and variable ballast tanks that adjust buoyancy and stability based on wave conditions;

b) a sensor suite installed along outer surface of the body 101 for detecting height of waves, sunlight intensity, inclination, motion and track real-time location along with distance from external marine equipment;

c) at least two propeller assembly 104 mounted to the buoyant member 102, via a retractable assembly 105 housed in a cavity, the propeller assemblies being extendable into the water for maneuvering and orientation control and retractable when not in use;

d) a hydraulic piston assembly 106 integrated into the circular buoyant member 102, designed to convert the oscillation of waves into mechanical energy, that drives a rotor of a generator connected with the hydraulic piston assembly 106 installed in the body 101 for generating electrical energy;

e) a plurality of solar panels 107 mounted on hinged wings 108 extending from an upper portion of the body 101, the hinged wings 108 are operable via a folding arrangement to deploy outward for solar energy harvesting or fold inward for protection during unfavourable weather conditions;

f) an energy storage unit linked with the solar panels 107 and generators for storing the harvested energy from waves and solar sources;

g) a wave amplification structure mounted on a lower periphery of the buoyant member 102, the structure comprising a series of curved intake fins 110 arranged equidistantly for directing wave motion into a converging channel in view of increasing the pressure differential on the hydraulic pistons for enhanced energy harvesting during moderate waterbody conditions;

h) a docking assembly arranged with the body 101, comprising multiple locking units and waterproof charging ports 111 for providing energy to external marine equipment; and

i) a self-cleaning module arranged on the buoyant member 102 for preventing biofouling on the submerged sections of the buoyant member 102.

2) The system as claimed in claim 1, wherein an artificial intelligence-based imaging camera 103 is mounted on the body 101 and synced with the sensor suite for scanning surroundings around the body 101 to determine wave conditions and sunlight intensity for determining whether to prioritize wave harvesting or solar energy harvesting based on real-time conditions.

3) The system as claimed in claim 1 and 2, wherein the sensor suite includes at least a wave height sensor, a wind sensor, a solar irradiance sensor, an inertial measurement unit (IMU) and a gyroscope, along with a GPS (Global Positioning System) module integrated with the microcontroller and a LiDAR (Light Detection and Ranging) module integrated with the imaging camera 103.

4) The system as claimed in claim 1, wherein the LiDAR sensor is mounted on the buoyant member 102 to scan the surroundings for detecting nearby obstacles or marine equipment, allowing the camera 103 and microcontroller to autonomously navigate and avoid collisions while moving to serve marine equipment in need of charging.

5) The system as claimed in claim 1, wherein the microcontroller is configured to receive service requests from external marine equipment via a user interface installed in a computing unit wirelessly linked with the microcontroller, for calculating navigation routes using the GPS and LiDAR data, and autonomously manoeuvre the body 101 via the propelling assembly 104 to the requesting equipment for charging.

6) The system as claimed in claim 1, wherein the docking assembly, includes load and current sensors for detecting abnormal conditions such as overheating, overloading or short-circuiting, based on which the microcontroller regulates charging conditions in unsafe environments.

7) The system as claimed in claim 1, wherein the hinged wings 108 are mounted using marine-grade hinges and the folding arrangement includes a four-bar linkage assembly 109 with each wing 108 equipped with torsion spring hinges and locking units to ensure reliable deployment and retraction.

8) The system as claimed in claim 1, wherein the self-cleaning module installed at the base including a ring 112 having multiple nylon-bristles, attached with a hydraulic piston 113 that provides movement to the ring 112 for scrubbing against the surface of the buoyant member 102 and a plurality of high-pressure jets 114, activated upon detection of biofouling by an integrated optical sensor coupled with a colour sensor.

9) The system as claimed in claim 1, wherein a rubberized bumper ring 115 installed around the outer rim of the body 101 to absorb impacts, and the body 101 is configured to enter a low-exposure mode by retracting solar panels 107 and docking arms during detected storms.

10) The system as claimed in claim 1, wherein the microcontroller is configured to receive data from the sensor suite and autonomously control the propeller assembly 104 for positioning, the hinged wings 108 for the solar panels 107, energy harvesting priorities between wave and solar modes, and energy distribution to the charging ports 111 based on environmental conditions and detected external marine equipment.