265 results about "Ocean current" patented technology

The invention relates to the technical field of ocean current data analysis, in particular to a multi-scale modeling and verification method and system based on ocean current spring layer structure analysis. And obtaining the thermocline and halocline parameters of the target sea area and carrying out abnormal value elimination and spatial interpolation to form a thermocline data set. A convolutional neural network is used to extract spring layer space structure features, and based on Gaussian curvature quantification boundary complexity, a thermocline and halocline equivalent geometric model is constructed. On the basis, taking the equivalent geometric model as a boundary condition, and performing multi-scale decomposition on the Navier-Stokes equation set to generate a dynamic approximate equation; and then inputting the approximate equation and the equivalent geometric model into a physical information neural network for constraint training to obtain a multi-scale flow field prediction model, and comparing the multi-scale flow field prediction model with actually measured flow field data to complete verification. According to the method, automation, refinement and multi-scale coupling of spring layer structure modeling are achieved, and scientificity and engineering applicability of ocean current modeling are improved.

The invention discloses an ocean current extraction method and system, and relates to the technical field of data processing, and the method comprises the steps: building causal priori from SWOT satellite observation data based on a set variation assimilation system and a structural equation model; wherein the causal priori comprises a causal path and strength between wind stress forcing and ground rotation adjustment; carrying out iterative generation through a physical constraint diffusion model under the conditions of causal priori and SWOT satellite observation data, and outputting a sea surface flow field; performing multi-level interpretability verification on the causal path and the step of performing iteration generation through the physical constraint diffusion model to obtain a verification result; a verification result is fed back to the structural equation model and the physical constraint diffusion model to form closed-loop optimization, and then the optimized sea surface flow field is obtained. According to the method, iteration is carried out through the physical constraint diffusion model to generate the sea surface flow field, multi-level interpretability verification is carried out, the sea surface flow field can be optimized by utilizing the verification result, and high-resolution ocean current acquisition is realized.

The invention discloses a sediment collection and supply integrated device for offshore wind turbine pile foundation scour prevention, which is arranged around the periphery of an offshore wind turbine single pile foundation, relates to the technical field of offshore wind power engineering, and comprises an annular sand collection unit, a sand storage unit, a sand unloading unit and a sand supply guide unit which are communicated from top to bottom; the annular sand collecting unit guides sediment in ocean current to be deposited and collected, the sand storage unit receives and stores the collected sediment, and the sand unloading unit can seal a bottom outlet of the sand storage unit in an opening and closing mode; the sand supplementing guide unit directionally guides the discharged silt to the scouring pit; the mechanical triggering unit and the elastic resetting unit are used for opening and resetting the sand unloading unit. Sediment carried by ocean current is utilized, through pure mechanical passive operation, integrated self-circulation of collection, storage, triggering, release and supply of the sediment is achieved, external energy is not needed, the self-adaptive adjusting capacity is achieved, and the construction and operation and maintenance cost is remarkably reduced.

The invention discloses an ocean flow field generation method and system, a storage medium and an environment forecasting device, belongs to the field of ocean current generation and prediction, is used for carrying out randomized prediction on ocean current according to historical observation data of an ocean flow field, and comprises the steps of obtaining multi-source ocean current observation data and carrying out data preprocessing on the data; a deterministic background flow field model and a random disturbance model are constructed, the background flow field model and the random disturbance model are coordinated and coupled under physical constraints of mass conservation and quasi-earth-to-balance, a probabilistic flow field set is generated by adopting a Monte Carlo method, and an ocean flow field is constructed. According to the method, the physical certainty and the data randomness of the ocean current are coordinated and coupled under the same physical constraint, the ocean current generation model containing random disturbance is constructed, and the prediction precision of the ocean current is improved.

The invention provides an ultra-short baseline calibration method, device and system, and belongs to the technical field of underwater acoustic measurement, and the ultra-short baseline calibration method comprises the following steps: according to an antenna phase center position, a carrier instantaneous attitude, a distance and azimuth information at each observation moment, and installation parameters of an ultra-short baseline acoustic transducer relative to an inertial navigation system, carrying out calibration on the ultra-short baseline; establishing a distance equation between the ultra-short baseline acoustic transducer and the ultra-short baseline acoustic beacon at each observation moment; establishing a residual equation of each distance equation; and solving the residual equation through a nonlinear least square method to obtain installation parameters. According to the method, the installation parameters of the ultra-short baseline acoustic beacon can be efficiently and accurately calibrated, and the problems that beacon laying and recycling operation is complex, cost is high, the operation period is long, efficiency is low, and the beacon is prone to drifting due to the influence of ocean currents are effectively solved.

The invention provides an underwater operation path adaptive planning method and system combined with machine learning, and the method comprises the steps: employing satellite remote sensing, underwater in-situ sensing and edge computing architecture, obtaining flow fields and terrain basic data of different scales through a multi-source sensing device and technology, achieving the fusion of multi-source data through combining with an intelligent weight distribution algorithm, and achieving the adaptive planning of an underwater operation path. A high-precision real-time sensing result is output, a physical constraint and data-driven hybrid modeling framework is constructed, a spatial-temporal feature capture model is adopted to process multi-scale data, an online self-adaptive updating mechanism containing forgetting factors is designed, dynamic adaptation of the model to time-varying ocean current characteristics is achieved, simulation pre-training, on-site fine tuning and online re-planning closed-loop algorithms are constructed, and real-time ocean current sensing is achieved. The model training efficiency is improved based on reinforcement learning and transfer learning, and an optimal correction path is generated in combination with a trigger mechanism and energy consumption optimization logic.

The invention discloses a multi-physics field coupling numerical method for simulating wave-ocean current-earthquake-seabed interaction, and relates to the technical field of ocean engineering numerical simulation, and the method comprises the following steps: model construction, load application, coupling solution, and result analysis and application. According to the method, revolutionary simulation of collaborative response of a seabed and a structure in a complex marine environment and multi-physics field high-precision bidirectional coupling of random waves, steady-state ocean currents and seismic excitation are realized by constructing a total-factor coupled high-precision numerical model, the problems of incomplete coupling dimensions and excessive model simplification of a traditional method are solved, and the method has the advantages of being high in practicability and high in reliability. According to the wave-induced seabed liquefaction simulation method, the simulation result and the actual working condition coincidence degree are remarkably improved, the frequency domain transfer function method is introduced to analyze the seabed pore pressure response, the cognitive depth and the prediction precision of the wave-induced seabed liquefaction mechanism are remarkably improved, and in addition, through efficient algorithms such as GPU parallel calculation, self-adaptive grids and frequency domain-time domain mixed solution, the wave-induced seabed liquefaction simulation method has the advantages that the wave-induced seabed liquefaction simulation precision is improved. And the calculation efficiency is greatly improved while the precision is ensured.

The invention relates to a bionic rotifer preying wheel disc type composite underwater target collection device and method, the collection device comprises an underwater robot and a bionic collection head, and the underwater robot is provided with a high-definition camera, a foresight sonar, an adjustable highlight LED underwater lighting lamp and a seabed in-situ metal measurement sensor; the bionic collecting head is provided with a bionic roller wheel and a conveying pipeline; the conveying pipeline is of a Venturi tube type conveying structure, and bionic protruding structures are arranged on the surfaces of the bionic roller wheels. The bionic roller wheels are coaxially connected with rotating output shafts of the waterproof driving motors correspondingly, and the waterproof driving motors drive the bionic roller wheels on the two sides of the conveying pipeline to rotate and vibrate relatively. Disturbance on a seabed sedimentary layer and influence on a seabed ecological environment can be reduced, so that collecting mechanical parts are not easy to damage in operation, the service life is prolonged, and the safety and the accuracy are improved; seabed ocean current disturbance is reduced, and an acquisition path is accurately controlled; energy consumption is reduced, jamming is avoided, sampling efficiency is improved, and the application range is widened.

The invention discloses an intelligent ship navigation system based on a space-time prediction risk field and deep reinforcement learning, relates to the technical field of ship navigation, and aims to solve the problem that a conventional navigation system is insufficient in dynamic risk assessment and prospective planning in the prior art. The technical key points are that the system comprises a multi-source data acquisition module, a dynamic risk mapping module, an intelligent path planning module, a visual interaction module, a risk early warning module and a self-checking module. According to the system, multi-source data such as weather, ocean current and ship dynamics are collected in real time, a predictive risk field is generated by using a long-short-term memory network, a route is optimized in combination with an adaptive deep reinforcement learning algorithm, and risk distribution and a recommended route are visually presented in a multi-scale three-dimensional form; the system can early warn a high-risk area in real time, and the reliability is ensured through a self-checking function. According to the invention, the sailing safety and the intelligent level of the ship in a complex environment are obviously improved.

This invention provides a trajectory planning method for unmanned surface vessels (USVs) under complex ocean current conditions, belonging to the field of unmanned control. The method includes: acquiring the USV's initial state information, final state information, size information, and kinematic parameters, as well as a multi-objective cost function; acquiring map information and ocean current information between the USV's starting and ending points; constructing a dynamic model of the USV considering ocean currents to obtain state constraints; constructing a coarse trajectory for the USV to obtain an initial solution vector and a navigation tunnel constraint; constructing boundary constraints based on the initial and final state information; constructing control input constraints based on the size information and kinematic parameters; and obtaining the optimal control sequence to complete the trajectory planning of the USV. This invention employs a two-layer trajectory planning algorithm based on numerical optimization and a trajectory planning method considering ocean currents to ensure the safe and efficient operation of the USV.

The invention relates to the technical field of data processing, and discloses an ocean net cage structure determination method based on simulation optimization. The method comprises the steps that ocean current, wave and water depth data are collected through an ocean environment sensor, and a standardized parameter set is obtained through preprocessing; constructing a net cage load calculation model, and carrying out finite element stress analysis; calculating a stability index based on stress distribution, and establishing a constraint condition; establishing a multi-objective optimization function, and considering cost and strength parameters; performing global optimization by adopting a genetic algorithm to generate a candidate scheme library; and optimal parameters meeting the bearing capacity and economical efficiency requirements are screened, and a final net cage structure configuration scheme is determined. According to the method, global multi-objective optimization of the net cage structure parameters under the complex marine environment condition is realized, so that the optimal net cage structure configuration scheme meeting the requirements of structure safety, economy and engineering practicability at the same time is obtained.

The invention discloses a remote sensing and marine observation data fusion method and system based on two-dimensional variation, and relates to the technical field of marine sciences, and the remote sensing and marine observation data fusion method based on two-dimensional variation comprises the steps: obtaining marine satellite remote sensing data, extracting marine dynamic features, and obtaining marine satellite remote sensing data; constructing an ocean dynamic characteristic thermodynamic diagram as a two-dimensional observation field; the method comprises the following steps: acquiring temperature, salinity and ocean current data of different depth profiles in real time by using an ocean buoy observation network, generating a two-dimensional ocean state background field in combination with ocean historical data and a spatial interpolation method, and estimating a background error covariance matrix of the two-dimensional ocean state background field; taking the minimum difference between a two-dimensional ocean state background field and multi-source marine satellite remote sensing data and ocean buoy observation as a target, combining with a background error covariance, constructing a two-dimensional variational cost function, calculating an optimal ocean state analysis field, and obtaining spatial continuous two-dimensional ocean state optimal estimation. The method has the beneficial effect that the precision and practicability of marine environment monitoring and prediction are improved.

The invention relates to a submarine cable current-carrying capacity calculation method considering the cooperative influence of seawater thermophysical characteristics and ocean current and electronic equipment. The method comprises the following steps: calculating a heat conductivity coefficient of the seawater thermophysical characteristics on the basis of ocean current temperature; the average convective heat transfer coefficient of the submarine cable surface is calculated based on the seawater thermophysical property pair heat conductivity coefficient; based on the contact area between the seawater and the cable, the contact area between the seawater and the sediment, the temperature difference between the seawater layer and the outer surface of the cable, the temperature difference between the sediment layer and the outer surface of the submarine cable and the average convective heat transfer coefficient, calculating convective heat transfer power; calculating the area occupied by seawater in the heat transfer range of the submarine cable based on a preset heat transfer radius, and calculating a seawater heat transfer coefficient and a sediment heat transfer coefficient based on the area occupied by the seawater and the heat conductivity coefficient of the seawater thermophysical characteristics; calculating the resistance per unit length of the submarine cable conductor considering the conductor temperature; and calculating the submarine cable current-carrying capacity based on the convective heat transfer power, the submarine cable body heat transfer coefficient, the seawater heat transfer coefficient and the sediment heat transfer coefficient.

An ocean wave and tidal current energy conversion system includes a first vessel and a second vessel, the first vessel being parallel and spaced apart from the second vessel. The first and second vessels include supports that receive cylinders that rotate from ocean waves and currents to create hydraulic oil pressure via hydraulic cylinders. The hydraulic oil in the energy conversion system is pumped into a pressure accumulator that removes hydraulic surges and operates an electric generator. The electric generator may power an electrolysis batch system for the production of hydrogen that fills each vessel with hydrogen gas.

This invention provides a slow-release feed device for marine aquaculture, relating to the field of marine aquaculture technology. It includes a rotating drum, a drum cover, and a fixed shaft. A rotating impeller is mounted on the rotating drum, which is connected to the drum cover to form a cylindrical space. The fixed shaft passes through the central axis of the rotating drum and drum cover and is rotatably connected to them. A cake holder, a feed cake, and a cake brush are installed within the cylindrical space. The cake holder is fixedly connected to the fixed shaft, and the feed cake is mounted and fixed on the cake holder. The cake brush rotates synchronously with the rotating drum, brushing the surface of the feed cake to accelerate slow release. Utilizing ocean currents or the up-and-down movement of seawater, the rotating impeller drives the rotating drum to rotate, which in turn drives the cake brush to continuously brush the slow-release flocculated layer formed on the surface of the feed cake. This effectively accelerates the diffusion and release of feed particles, solving the problem of excessively long natural slow-release time for feed cakes and their inability to pass through a 150-mesh or finer silk sieve, thus meeting the needs of aquaculture such as oyster farming.

The invention discloses an omni-directional ocean current energy capturing device based on a friction nanometer generator. The omni-directional ocean current energy capturing device comprises a device shell, a base, an elastic supporting rod and a plurality of friction nanometer power generation units. A closed cavity is formed in the device shell; the two ends of the elastic supporting rod are fixedly connected with the base and the device shell. The multiple friction nanometer power generation units are evenly distributed on the inner wall of the closed cavity of the device shell in the circumferential direction. When the energy capturing device is placed in water, the device shell is suspended in the water under the traction of the base and the elastic supporting rod, and the device shell swings in a reciprocating mode under the traction of the elastic supporting rod under the driving of water flow, so that the friction layer and the first electrode layer make contact with each other in a reciprocating mode and are separated from each other. The omni-directional ocean current energy capturing device based on the friction nano-generator disclosed by the invention has the advantages of omni-directivity, simple and reliable structure and high energy conversion efficiency, and is particularly suitable for capturing and converting low-frequency and multi-directional ocean current energy in an ocean environment.

The utility model discloses a fan blade type friction nanometer generator based on seabed ocean current energy, which comprises a shell, fan blades and a friction generator, a power generation cavity and a blade cavity are respectively arranged at two ends in the shell, the power generation cavity and the blade cavity are two mutually independent cavities, the fan blades are rotatably arranged in the blade cavity, the friction generator is arranged in the power generation cavity, and the friction generator is arranged in the friction generator. The fan blades and the friction generator are coaxially arranged and are in transmission connection through the magnetic coupling part; a water flow channel is formed in the shell, a flow guide cover is arranged in front of the fan blades, and water flow enters the water flow channel through the flow guide cover and pushes the fan blades to rotate. By arranging the power generation cavity and the blade cavity which are isolated from each other, the power generation component and the driving component are installed separately, transmission is conducted through the magnetic coupling component, a dynamic sealing structural part does not need to be installed, and the power generation component can be independently installed in the power generation cavity in a sealed mode; and meanwhile, as no dynamic sealing structural member is arranged, the transmission resistance is greatly reduced, and the mechanical loss is reduced.

This invention discloses a multi-scale time-frequency analysis method and system for ocean current meter signal processing, relating to the field of marine information processing. The method includes: S1: acquiring raw data and performing physical benchmark correction to obtain three-dimensional current velocity data and basic mass labels; S2: extracting first and second features from the three-dimensional current velocity data through spatiotemporal decoupling; S3: fusing and separating the three-dimensional current velocity data based on the first and second features to obtain an optimized set of flow field parameters, and generating the uncertainty of each parameter by combining the basic mass labels and error source information; S4: performing comprehensive quality assessment and grading based on the first and second features and the uncertainty, outputting a data product with mass labels and uncertainty information. By extracting spatiotemporal dual-dimensional features and using them to guide signal fusion and quality assessment, highly robust processing of ocean current data and end-to-end quality traceability are achieved, significantly improving the reliability of the data product.

The application discloses a short-term accurate prediction method for tuna longline fishing center fishing ground and hooking route based on middle layer water temperature and ocean current spatial characteristics, and has the characteristics that the fishing ground position is accurately predicted according to the spatial vortex characteristics of the middle layer water temperature (reference 100m water layer, auxiliary reference 50m water layer) and the ocean current (preferably the ocean current of the 100m water layer, auxiliary reference the ocean current of the 50m water layer), and the hooking route is designed according to the method that the hooking route is maximally 90 degrees with the 100m water layer ocean current. The application can accurately predict the fishing ground position and the hooking route by combining the marine environment and the tuna longline fishing boat operation characteristics, and can improve the catch by 10-20% and improve the production effect.

This application relates to the fields of SAR signal processing and marine remote sensing applications, and provides a method and apparatus for sea surface current field inversion based on electromagnetic vortex wave radar data. The method determines the Doppler spectrum using electromagnetic vortex wave radar image data, obtains the measured frequency position of the trough feature point in the Doppler spectrum, and determines the theoretical frequency position using the position and angle of the two main lobes and the angle of the trough feature point in the radar antenna pattern. Then, the difference between the measured frequency position and the theoretical frequency position is used to obtain the anomalous frequency offset. Next, the Doppler frequency offset caused by wind and wave motion is removed from this anomalous frequency offset to obtain the target Doppler frequency offset. Finally, the radial velocity of the sea surface is calculated using the Doppler frequency offset, thus realizing sea surface current field inversion. This effectively expands the applicability of the Doppler frequency shift-based ocean current inversion method and improves the application potential of electromagnetic vortex wave radar in sea surface current field detection.

This invention provides a deep-sea submersible ocean current energy capture device, belonging to the field of ocean current power generation technology. It includes a top buoy, an ocean current energy capture device, stabilizing fins, a bottom plate energy storage system, a heave balancing mechanism, and an anchoring mechanism. The top buoy is installed on top of the ocean current energy capture device, providing buoyancy for the entire device. The ocean current energy capture device captures ocean current energy and converts it into electrical energy. The stabilizing fins are installed on both sides of the ocean current energy capture device to ensure its balance. The bottom plate energy storage system is installed at the bottom of the ocean current energy capture device to store the electrical energy generated by the device and can also directly supply power. The heave balancing mechanism is installed at the bottom of the bottom plate energy storage system to ensure vertical balance and reduce device vibration. The anchoring mechanism is arranged around the heave balancing mechanism to provide tension, ensuring the entire device is stress-balanced. The number of ocean current energy capture devices can be increased or decreased according to actual needs, making it widely adaptable, easy to use, and simple in structure.

The invention relates to the technical field of artificial intelligence, and discloses a regional ocean current analysis method and device, and the method comprises the steps: obtaining the observation data of a regional ocean current, carrying out the standardization processing of the observation data, generating standardized ocean current data, and calculating the data point distribution density of the standardized ocean current data, so as to obtain the data point distribution density of the regional ocean current, the method comprises the steps of performing dynamic self-adaptive grid division on regional ocean current based on data point distribution density, generating a non-uniform grid structure, performing numerical interpolation calculation on the non-uniform grid structure based on standardized ocean current data, generating an initial interpolation result of the regional ocean current, performing algorithm correction on the initial interpolation result, generating a corrected interpolation result of the regional ocean current, and obtaining the corrected interpolation result of the regional ocean current. Performing root-mean-square error analysis on the corrected interpolation result to generate a final interpolation result of the regional ocean current; the method can solve the problem that the analysis conclusion deviates from reality due to the reduction capability of the limit interpolation result to the actual ocean current distribution condition and error accumulation.

The application provides a simulation method and system for the interaction between seabed topography and ocean current, comprising: obtaining high-resolution seabed topography data, generating an adaptive grid structure, and constructing fine topography description data; generating interaction data between the ocean current field and the topography by using a turbulence closure model according to the fine topography description data; simulating a nonlinear process to generate nonlinear process characteristic data according to the interaction data; generating ocean mixing process data by using a particle tracking method according to the nonlinear process characteristic data; optimizing turbulence parameters to generate optimized turbulence mixing data according to the ocean mixing process data; and updating the simulation of the ocean current field to generate high-precision ocean current field distribution data according to the optimized turbulence mixing data. The application can improve the simulation accuracy of ocean dynamic processes under complex topography conditions and provide important support for ocean environment prediction and resource development.

The present application relates to the field of ocean engineering and intelligent detection technology, specifically to a kind of multi-robot collaborative underwater oil and gas pipeline weld intelligent detection method and system, it includes obtaining and fusing each robot perception and task state data, assesses communication and perception ability, predicts task load trend and optimizes scheduling, adjusts multimodal fusion priority, re-plans task path and optimizes execution strategy, generates collaborative detection feedback data.The present application improves the collaborative ability of multi-robot in communication limited and ocean current disturbance environment through the dynamic task scheduling mechanism of global collaborative state perception;Combined with the time sequence alignment of multimodal sensing data and the dynamic adjustment of fusion priority, the stable recognition ability in complex underwater environment is enhanced;Through the joint optimization of task path planning and data fusion strategy, the detection coverage and defect recognition accuracy are improved, and the adaptability and reliability of the system in deepwater long-distance pipeline weld detection are enhanced.

The application provides a heterogeneous cooperative path planning method for a marine floating object target search task. A Parcel v2 particle simulator based on a Lagrange framework is used to predict the future trajectory and position of a plurality of particles according to real sea waves, ocean currents, wind fields and other information, and then a Parzen window method based on a Gaussian kernel function is used to obtain a target probability map. In the traditional GBNN method, the regional centroid and motion constraint are added to improve the external stimulation value of the neuron to plan the cooperative search path of the plurality of unmanned ships, so that the local optimum can be effectively avoided and the search efficiency is improved. A solar unmanned aerial vehicle is used as a communication relay of the plurality of unmanned ships, an optimal communication network connection is obtained by using a minimum spanning tree, and then the path of the unmanned aerial vehicle is planned. The application can improve the method for solving the marine search target of the plurality of unmanned ships, so as to improve the efficiency of the marine search target of the unmanned ships.

The invention relates to the field of deep sea culture equipment, in particular to an offshore composite foundation lifting type net cage which comprises pile legs distributed in a rectangular mode, lifting sleeves capable of axially climbing or descending are installed on the pile legs in a matched mode, and a plurality of installation assemblies are arranged between the adjacent lifting sleeves. The mounting assembly comprises corner mounting blocks fixedly connected with the lifting sleeve, a plurality of splicing mounting blocks are arranged between the corner mounting blocks at the two ends at equal intervals, protective rods and net cage plates are detachably mounted between the splicing mounting blocks and the corner mounting blocks and between the adjacent splicing mounting blocks, and the protective rods are located on the outer sides of the net cage plates. A net cage bottom plate is mounted at the bottom end of the bottommost net cage plate. According to the device, organisms can be effectively prevented from being attached to the inner wall of the net cage, the service life of the net cage is greatly prolonged, the ocean current effect in the ocean is effectively utilized in the whole cleaning process, extra power resources are not needed, and therefore automatic cleaning is achieved in the breeding process.

The invention discloses an ecological living stone culture system and a method thereof, belongs to the field of aquarium engineering, and solves the problems of low seabed bacterium culture efficiency, non-uniform flora attachment, breeding of hybrid algae and poor ecological stability of the existing artificial living stone. The system comprises a base body, an internal artificial stone culture area, peripheral and top ecological pretreatment areas and a bottom biological sheltering area. The culture area is provided with a through water channel facing ocean current, independent compartments with grating bulkheads are arranged on the two sides of the culture area, a drainage plate and knocking holes are matched, the pretreatment area is provided with a seaweed culture base and a coral attachment plate, and the sheltering area is provided with stacked pipe fittings. During culture, firstly transplanting seaweed for ecological pretreatment, then putting algae-eating snails and hosting crabs, putting the artificial stones into the compartments for culture, and taking out the artificial stones until more than half of the surfaces of the artificial stones are covered with calcified algae. The device can realize uniform water supply, inhibit miscellaneous algae, shorten the cultivation period, adapt to submarine topography, facilitate large-scale cultivation and is suitable for coral reef restoration and aquarium ecological construction.

The invention discloses a wave energy and ocean current energy integrated power generation device, and relates to the technical field of power generation devices. The power output end of the ocean current energy capturing mechanism is connected with the first rotating part to drive the first rotating part to rotate; the mechanical motion rectifying mechanism comprises a reciprocating lifting part, a rotary output part and a motion rectifying structure, and the motion rectifying structure is connected with the reciprocating lifting part and the rotary output part and can convert lifting bidirectional power of the reciprocating lifting part into rotary power of the rotary output part; the rotation output part is connected with the second rotation part and can drive the second rotation part to rotate in the direction opposite to the rotation direction of the first rotation part. And the floating output end of the wave energy capturing mechanism is connected with the reciprocating lifting part. The wave energy power generation device and the ocean current energy power generation device can be coupled together, the effect of adding the rotating speed of the power generator is achieved, and then the energy utilization rate is increased.