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87 results about "Open sea" patented technology

Method and system for generating ocean island typhoon scene driven by physical information neural network

The invention discloses a physical information neural network-driven ocean island typhoon scene generation method and system. The method comprises the steps of collecting multi-source heterogeneous meteorological data and performing space-time alignment preprocessing; constructing a coarse-scale space-time probability prediction model, capturing space correlation of meteorological elements by using a graph topology learning network, efficiently processing long-time-sequence dependence of typhoon evolution by integrating a state space model with linear complexity, and generating a probabilistic typhoon scene with coarse resolution through a multivariable joint distribution probability model; further constructing a physical downscaling model, taking a coarse-scale prediction result as condition input, and performing physical consistency downscaling on a coarse-scale scene by embedding an atmospheric fluid mechanics equation in a loss function as a physical hard constraint; and finally, outputting a high-resolution typhoon scene with probability reliability and physical authenticity.
Owner:NANJING NORMAL UNIVERSITY

Polar region multi-source remote sensing sea wave significant wave height optimization interpolation fusion method and device

The invention provides a polar region multi-source remote sensing sea wave significant wave height optimization interpolation fusion method and device, and belongs to the field of remote sensing, and the method comprises the steps: carrying out the preprocessing of collected sea ice marginal region and open sea surface data; north-pole geometric adaptation correction is carried out, system deviation of multiple satellite sensors is eliminated, and consistency and accuracy of data are ensured. Real-time wave height forecast is used as a background field, a weighting function is constructed in combination with a satellite observation error covariance matrix, dynamic background field fusion is carried out, and the precision and reliability of a data sparse region are improved; according to different characteristics of a sea ice marginal region and an open sea surface, different weights are set, a transition weight function is introduced, partition fusion is carried out, boundary discontinuity is avoided, and therefore the final fusion wave height is obtained; the robustness of the fusion method is verified through K-fold cross validation, and meanwhile precision verification is conducted in combination with multi-dimensional data. According to the method, the problem of insufficient accuracy verification spatial representativeness caused by rare north pole in-situ observation quantity and concentrated distribution is solved.
Owner:AEROSPACE INFORMATION RES INST CAS

Marine ecological monitoring station overweight component hoisting method

The invention provides a hoisting method for an overweight component of a marine ecological monitoring station, which belongs to the technical field of hoisting of the overweight component and comprises the following steps: step 1, carrying out early-stage preparation for hoisting construction of the overweight component of the marine ecological monitoring station; step 2, carrying out in-plant transportation and barge falling on the prefabricated component hoisted by the marine ecological monitoring station overweight component; step 3, carrying out open-sea field hoisting on the prefabricated component for hoisting the overweight component of the marine ecological monitoring station; 4, construction monitoring and emergency guarantee are conducted on hoisting of the overweight component of the marine ecological monitoring station. By optimizing operation window period selection, a precise positioning technology, a special lifting appliance design and a transportation reinforcement scheme, safe, efficient and precise lifting of the overweight component in the open sea is achieved, and the construction quality and the construction progress of a monitoring platform are guaranteed.
Owner:NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD

Structure of triboelectric nano generator for collecting low-frequency omnidirectional sea wave energy by using volume effect

The floatable instantaneous generator comprises an outer layer in the form of a hemispherical floatable supporting bowl and an inner layer in the form of a liquid-solid triboelectric nano generator (ls TENG); the inner layer includes a fluorinated ethylene propylene (FEP) layer on an inner side of the bowl, a ring electrode on an upper surface of the FEP layer around a periphery thereof, a circular electrode on a bottom surface at a central portion of the FEP layer, and a droplet slidable on the upper surface of the FEP layer. When subjected to open sea waves, the bowl floats and tilts the ls TENG so as to slide droplets on the upper surface of the FEP, thereby creating and disconnecting contact between the ring electrode and the circular electrode and providing power to an electrical circuit connected between the ring electrode and the circular electrode.
Owner:THE UNIVERSITY OF HONG KONG

Sea island reef remote sensing image substrate classification data set construction method and device, electronic equipment and storage medium

The invention discloses an island remote sensing image substrate classification data set construction method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining island remote sensing data; based on the priori island substrate classification system, a target island substrate classification system is built according to the feature condition of each substrate category; obtaining a pre-selected ROI sample in the island remote sensing data; carrying out substrate category analysis based on the ROI sample to obtain a low-separation-degree target substrate category set; performing preliminary classification by using a support vector machine based on the ROI sample to obtain a preliminary classification result; and based on the target substrate category set, performing correction processing on the preliminary classification result in response to a manual correction instruction of the target object to obtain an island substrate classification data set. The method provides an effective and feasible technical path for realizing automatic and standardized construction of the high-precision substrate classification data set of the open sea island reef, and can be widely applied to the technical field of substrate classification.
Owner:GUANGZHOU MARINE GEOLOGICAL SURVEY

Suspension type culture net cage in open sea area

The invention provides an open sea area suspension type culture net cage, and relates to the field of culture, the open sea area suspension type culture net cage comprises a culture net cage, the whole culture net cage is cylindrical, the top is hollow, the side wall and the bottom are respectively provided with a rectangular groove and a circular groove, the inner walls of the rectangular groove and the circular groove are provided with interception nets, and the interception nets divide the interior of the culture net cage into culture areas; the device further comprises a suspension ring, a counterweight mechanism, a cleaning mechanism and an oxygen supply mechanism. Through the arrangement of the aquaculture net cage, the suspension ring, the counterweight mechanism, the cleaning mechanism and the oxygen supply mechanism, the suspension ring is installed on the aquaculture net cage, so that the aquaculture net cage can float on the water surface, most of the aquaculture net cage is located underwater to form an aquaculture area, a counterweight ball is thrown underwater, and a section of counterweight chain is reserved; the aquaculture net cage can move in a certain range, and is fixed in a certain area under the traction of the counterweight ball, so that the aquaculture net cage can adapt to the ebb and the tide of seawater.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Optical oil storage multi-energy complementary direct-current power supply system and method for monitoring buoy

The invention provides an optical oil storage multi-energy complementary direct-current power supply system and method for a monitoring buoy, and relates to the technical field of new energy power supply technology and direct-current micro-grid crossing. The system comprises a photovoltaic power generation system, a diesel power generation system, an energy storage battery system, an energy management module, a direct-current bus and load equipment; the energy storage battery system is integrated with a thermal management and vibration protection structure. According to the method, power supply optimization is realized through data acquisition, prediction model construction, dynamic power distribution, environment adaptive adjustment and state monitoring, a photovoltaic output and load demand prediction model is fused with sea environment parameters, and the model precision is optimized through grid search and an early stop method; a multi-mode scheduling strategy and a load grading mechanism guarantee power supply reliability; a self-adaptive adjusting scheme is designed according to working conditions such as salt mist, temperature, illumination and bumping. The problems that an existing buoy is low in power supply reliability, poor in environmental adaptability and low in energy efficiency are solved, and the buoy is suitable for open sea observation, long-term offshore deployment and other scenes.
Owner:CHINA YANGTZE POWER

Dynamic charging coordination method, system, device and medium under far sea grid monitoring

The application discloses a dynamic charging coordination method, system, equipment and medium under open sea grid monitoring, relates to the technical field of open sea monitoring and energy management, and comprises grid dynamic division and equipment priority allocation; the light receiving efficiency is optimized by adjusting the inclination angle of the photovoltaic film, a task adjustment and energy management balance mechanism is constructed, and abnormal detection and cooperative response are carried out based on a multi-sensor fusion technology. The method disclosed by the application carries out grid dynamic division and equipment priority allocation, optimizes the grid boundary by using a hierarchical quadtree algorithm and real-time data, improves the utilization rate and monitoring accuracy of monitoring resources, optimizes the inclination angle of the photovoltaic film and the task energy management balance mechanism, improves the task completion efficiency while ensuring long-time endurance of the equipment, and accurately identifies complex abnormal events and quickly allocates response tasks based on the abnormal detection and cooperative response of the multi-modal sensor fusion technology, thereby improving the efficiency and intelligent level of the monitoring system as a whole.
Owner:ZHONGYING FUND MANAGEMENT CO LTD +1

Self-powered ocean drifting buoy capable of converting wave kinetic energy and solar energy into electric energy

The invention relates to the technical field of new energy power supply of ocean monitoring equipment, in particular to a self-powered ocean drifting buoy capable of converting wave kinetic energy and solar energy into electric energy. A lower mounting plate set is horizontally mounted at the bottom of an inner cavity of a spherical shell, two circuit board sets are symmetrically mounted on the edges of the two sides of the lower mounting plate set, a middle mounting plate set is mounted over the middle of the lower mounting plate set, and a storage battery set is mounted in a gap between the lower mounting plate set and the middle mounting plate set. The wave kinetic energy capturing and electric energy converting device is installed above the middle installation plate set, the upper installation plate set is installed on the lower portion of the spherical cover, the spherical cover is installed on a top opening of the spherical shell, the wave kinetic energy capturing and electric energy converting device is fixedly buckled with the bottom of the upper installation plate set, and the solar panel set is installed outside the spherical shell. The method can be suitable for far and deep sea long-term hydrological monitoring scenes, and especially serves for the fields of typhoon path tracking, open sea meteorological hydrological detection system data verification and the like.
Owner:ZNPL OCEAN DETECTION SYST ENG

Sailing boat for fish culture in open sea area or ocean

The invention relates to a quadruple sailing boat (1) for fish farming in open or ocean sea areas, comprising at least one base structure (2), at least one seine (5), at least one driving and accommodation compartment (3), at least one sail system (4) and at least one storage silo (6), all of which are modular and / or detachable. According to the invention, the at least one base structure (2) comprises: at least two main floats (7) which are parallel and spaced apart from each other and are connected or fastened to each other by means of at least one arm (8); and at least two secondary floating bodies (9) adjacent to each of the at least two main floating bodies (7), the perimeter of the secondary floating bodies being smaller than the perimeter of the at least two main floating bodies (7), and the two secondary floating bodies being arranged parallel to each outboard and at a distance from the at least two main floating bodies.
Owner:沃尔特·弗朗西斯科·阿尔弗雷多·布什曼·施里默

A multi-mode gas management system

The application discloses a multi-mode gas management system, which comprises a pressure management system, a fuel supply control system, a reliquefaction control system, a reburning control system and a venting control system of a gas exhaust mast. The pressure management system is used for selection of a navigation pressure mode and a cargo hold pressure control mode. The fuel supply control system is used for providing fuel gas with stable pressure for power generation main engines and propulsion main engines. The reliquefaction control system lowers the BOG evaporation rate by lowering the temperature and pressure of the cargo hold, and deep-freezes and liquefies the BOG in the cargo hold. The reburning control system is used for protecting the pressure of the cargo hold. The venting control system of the gas exhaust mast is used for discharging gas into the atmosphere when the gas cannot be combusted and the ship is in the open sea. The application avoids unit pressure fluctuation interference in a mode, and guarantees safe and stable operation of an LNG transport ship.
Owner:JIANGSU AUTOMATION RESEARCH INSTITUTE +1

Intelligent riprapping device and method for unshielded open sea bridge bottom

The invention discloses a non-shield open sea bridge bottom intelligent riprap device, which belongs to the technical field of building construction, and comprises a transverse rail, the transverse rail is clamped and fixed on a bridge floor, a lifting beam is slidably connected below the transverse rail, the lifting beam moves along the transverse rail, a longitudinal rail is fixedly connected to the lifting beam, and an electric hoist is mounted on the longitudinal rail. And the electric hoist moves along the longitudinal track and is provided with a lifting hook, so that the bridge bottom is riprapped through the lifting hook. The invention further discloses a non-shield open sea bridge bottom intelligent riprapping method. The device can be safely and firmly installed on an existing bridge deck structure, resists wind vibration and shaking of the outside sea, meanwhile has enough flexibility, can cover the area, needing stone casting, of the bridge bottom, can achieve automatic lifting, translation and lowering of stone, and completes precise casting.
Owner:CCCC FIRST HARBOR ENGINEERING CO LTD +1

Nuclear power station cold source filtering and intercepting device

The invention discloses a nuclear power station cold source filtering and intercepting device, and relates to the field of nuclear power station cold source trash holding, the nuclear power station cold source filtering and intercepting device comprises an open sea guide net, a trash holding net, a bag net and a bottom bag net, the open sea guide net, the trash holding net, the bag net and the bottom bag net are all mounted on a dike head abutment of a water inlet of a nuclear power station; the open sea guide net, the trash holding net, the bag opening net and the bottom bag net are sequentially arranged on the embankment head abutment from far to near towards the nuclear power station, the bottom bag net comprises a mounting table, a net body and an anchor block, the mounting table is mounted on the embankment head abutment, the net body is mounted on the mounting table, the anchor block is mounted on the net body and detachably mounted at the bottom of the embankment head abutment, and the bag opening net is mounted on the bottom of the embankment head abutment. A wind-up roller is rotatably arranged on the mounting table, a guide roller is rotatably arranged on the anchor block, the net body is sleeved between the wind-up roller and the guide roller in an end-to-end mode, a cleaning mechanism is arranged on the guide roller, and the cleaning mechanism abuts against the side, facing the outside of the nuclear power station, of the net body. The method has the effect of reducing the blocking probability of the net body.
Owner:SHANG HAI YINAI NEW MATERIAL TECH LTD +1

Water surface unmanned ship acoustic anomaly detection method based on deep autoencoder

The application provides a water surface unmanned ship acoustic anomaly detection method based on a deep autoencoder, relates to the fields of underwater acoustics, high-end ocean equipment and artificial intelligence technology, and comprises the following steps: collecting full-scene ocean environment acoustic data, building an autoencoder deep neural network model, training the autoencoder deep neural network model based on ocean environment noise data through an unsupervised training mode, performing model compression on the trained autoencoder deep neural network model based on a knowledge distillation algorithm, deploying the compressed autoencoder deep neural network model to an acoustic towed body carried by a water surface unmanned ship, arranging the water surface unmanned ship carrying the model in the form of a cluster in the open sea ocean, and performing acoustic anomaly detection in an acoustic convergence zone. The application can improve the intelligent level of the water surface unmanned ship, realize acoustic anomaly perception at an edge device end, effectively reduce satellite communication costs, improve the implementation response degree of the system, and reduce the artificial misjudgment rate.
Owner:OCEAN UNIV OF CHINA

A physical information neural network driven typhoon scene generation method and system for an open sea island platform

The application discloses a kind of physical information neural network driven ocean island typhoon scene generation method and system, comprising: collecting multi-source heterogeneous meteorological data and carrying out space-time alignment preprocessing;Build coarse scale space-time probability prediction model, utilize graph topology learning network to capture the spatial correlation of meteorological elements, integrate the state space model of linear complexity to efficiently process the long-time sequence dependence of typhoon evolution, and generate coarse resolution probabilistic typhoon scene through multivariate joint distribution probability model;Further build physical downscaling model, input coarse scale prediction result as condition, embed atmospheric fluid mechanics equation as physical hard constraint in loss function, and physically consistent downscaling is carried out to coarse scale scene;Finally output high-resolution typhoon scene with probability reliability and physical authenticity.
Owner:NANJING NORMAL UNIVERSITY

Control system, maintenance method and equipment for flexible direct current converter valve tower maintenance

The invention discloses a control system, an overhauling method and equipment for overhauling a flexible direct current converter valve tower. The control system comprises a human-computer interaction interface and a control terminal, the human-computer interaction interface is used for collecting information fed back by the valve control system and the control terminal, performing intelligent analysis on the collected information, issuing a command to the valve control system and the control terminal according to an analysis result, and finally generating a maintenance report; and the control terminal is used for configuring a GPS clock, receiving a command issued by the human-computer interaction interface, controlling the charging equipment through wireless communication, receiving a state signal of the converter valve, and controlling the control system through wired communication to issue a maintenance command. According to the control terminal, wireless communication is adopted, the risk of wrong line connection is avoided, the maintenance efficiency is improved, redundant configuration is formed through wired communication with the valve control system, and communication disconnection faults are avoided. The maintenance progress can be checked in real time by adopting a visual interaction interface, a maintenance report can be automatically generated, and the system has moisture-proof, salt mist-resistant and electromagnetic interference-resistant capabilities and is suitable for an open sea environment.
Owner:CHINA EPRI ELECTRIC POWER ENG CO LTD +3

Artificial fish reef installation method based on open sea vertical caisson structure arrangement

The invention relates to the technical field of marine ecological facilities, in particular to an artificial fish reef installation method based on open sea vertical caisson structure arrangement. Acquiring a geographic plane coordinate graph of the target sea area and wave energy data of the target sea area, and analyzing and counting the wave energy data based on the geographic plane coordinate graph to generate a wave energy hotspot distribution graph of the target sea area; the sea wave motion vector is analyzed through the wave energy hot spot distribution map, an installation area is planned, and an open sea vertical caisson installation sea area is obtained; acquiring real-time image transmission data of an open sea vertical caisson installation sea area, analyzing a migration rule of marine organisms according to the real-time image transmission data, and determining an artificial fish reef installation caisson; by means of the innovative arrangement and installation method that the artificial fish reefs are integrated in the open sea vertical type caisson structure breakwater, the wave prevention function, the ecological protection function and the ecological restoration function are integrated, and harmonious symbiosis of an engineering structure and the ecological environment is achieved.
Owner:CCCC FHDI ENG

A dual-mode communication method and terminal for ships based on adaptive region awareness

This invention discloses a ship dual-mode communication method and terminal based on adaptive region awareness. Multiple data points are input into a preset clustering model for cluster matching. If an existing cluster is matched in the preset model, the center and boundary information of the existing cluster are updated. Location point information is acquired and matched with all boundary information. If a match is successful, a region type signal is generated based on the matched boundary information; if a match fails, an unknown region signal is output. For region type signals, the target ship is controlled to use mobile communication and / or satellite communication; for unknown region signals, the target ship is controlled to use mobile communication for region signal analysis. This invention constructs a region signal model based on historical experience, enabling forward-looking decision-making, reducing the average energy consumption of the dual-mode communication terminal overall, improving the endurance of the ship terminal in open seas or areas with weak coverage, and ensuring communication reliability.
Owner:FUJIAN XINGHAI COMM TECH

Back wave water inlet type oscillating water column structure based on long wave reduction and energy extraction

The invention relates to the technical field of ocean engineering and renewable energy sources, and discloses a back wave water inlet type oscillating water column structure based on long wave reduction and energy extraction, which comprises a wave absorption main body, a support, a pile foundation and a turbine generator set with an air turbine, and further comprises an arc-shaped moving door, the two arc-shaped moving doors are connected into an interlayer of the wave absorbing body in a sliding mode, and a back water inlet matched with the two arc-shaped moving doors is formed in one side of the wave absorbing body. Water level modulation caused by the phase difference between the liquid level fluctuation of the cavity and the liquid level fluctuation outside the cavity is formed to reduce waves. According to the technical scheme, wave response optimization under different wave periods can be achieved by synchronously adjusting the size of the water inlet, the energy extraction efficiency is improved, the wave transmissivity is reduced, and the device is suitable for various layout forms of offshore and open sea areas and has the good wave adaptability and the integration characteristic of wave reduction and energy extraction.
Owner:DALIAN UNIV OF TECH

A flexible feed pipe deep-water gravel bed leveling equipment and its application method

The application provides a flexible replenishment pipe deep water rubble bed leveling equipment and a use method thereof, which comprises a mother ship and an underwater leveling frame, the mother ship and the leveling frame are connected through a flexible replenishment hose and multiple umbilical cables, a moving mechanism is arranged on the leveling frame, and a riprap pipe is arranged on the moving mechanism. The overall device is a mother ship, underwater leveling frame and flexible replenishment hose scheme, the influence of the harsh environment of the open sea deep water area on the leveling precision is avoided, the scheme can be applied to 100-meter deep water. The flexible hose is used as the flexible replenishment scheme, and the underwater accurate replenishment is realized. The mother ship and the leveling frame can move to realize high-precision positioning, the positioning frame can check the information of the leveled frame after positioning, and the positioning precision is further improved. The moving mechanism on the leveling frame can uniformly feed the rubble, and the material level is kept stable. The riprap pipe is used for separating the rubble and water in the flexible replenishment hose, the riprap pipe is suitable for the rotation and movement angle of the leveling frame, and is suitable for popularization and use.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD

A shipboard marine aerosol monitoring platform apparatus and method of use

The application discloses a kind of shipborne marine aerosol monitoring platform device and use method, platform device includes ship body, monitoring cavity is equipped on the deck of ship body, the outlet end of gas inlet pipe is vertically extended from the top end of monitoring cavity into monitoring cavity, laser diode is fixed in the right part of monitoring cavity, probe diode is fixed in the upper part of monitoring cavity and scattering mirror is fixed in the lower part, laser diode is used to emit laser to aerosol particle in air sample, scattering mirror is used to reflect the scattering light emitted by aerosol particle under the action of laser to probe diode, probe diode is used to receive scattering light and convert into electric pulse, and the number of aerosol particles in certain particle size section in air sample in monitoring cavity in certain time period is calculated.The application can obtain the number concentration of aerosol particles in open sea moving air source, and the spatial resolution of monitored aerosol particle number concentration is higher.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Navigation mark suitable for open sea

The utility model provides a navigation mark suitable for open seas, which comprises a hollow floating body and a navigation mark lamp arranged at the top of the floating body. The generator is mounted in the floating body; the storage battery is mounted in the floating body, and the storage battery is electrically connected with the generator and the beacon light respectively; the rotating shaft is rotationally arranged at the bottom of the floating body, the top end of the rotating shaft extends into the floating body and is in transmission connection with the generator, and a plurality of fan blades are arranged at the bottom end of the rotating shaft in the circumferential direction; the damping system is arranged in the floating body and used for reducing shaking borne by the floating body; and the anchoring system is connected with the floating body. The utility model has the advantages of high stability and strong typhoon-proof capability, and can stably solve the power supply capability of the navigation mark by utilizing ocean resources.
Owner:GUANGDONG HAIGONG CONSTR ENG CO LTD

Positioning method of jacket with data bin

PendingCN121802841ABulkheads/pilesCatheter/tube holderOpen sea
The invention provides a method for positioning a jacket with a data bin, which belongs to the technical field of jacket positioning and comprises the following steps of: 1, positioning a process pile of a pile stabilizing platform for positioning the jacket of the data bin; 2, a pile stabilizing platform for positioning a jacket of the data bin is installed; 3, positioning and driving steel pipe piles for positioning the jacket of the data warehouse; 4, integrated positioning installation is conducted on the jacket of the data bin; and 5, grouting and fixing the jacket of the data warehouse. Accurate butt joint of the jacket and the steel pipe pile is achieved, the positioning accuracy and the construction efficiency in the open sea area complex environment are improved, and the installation risk is reduced.
Owner:NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD

Sea surface ocean current inversion method and system integrating ground wave radar and GNSS reflection

The invention relates to the technical field of ocean remote sensing and intelligent ocean monitoring, in particular to a sea surface ocean current inversion method and system fusing ground wave radar and GNSS reflection, and the method comprises the steps: obtaining ground wave radar radial flow and GNSS-R original data; aI-driven space-time interpolation is carried out on the ground wave radar data so as to restore missing; constructing a wind-wave-current coupled GNSS-R forward physical model to extract weak ocean current signals; taking a regional ocean model as a framework, dynamically distributing two types of observation weights according to a shore distance, and carrying out partition self-adaptive data assimilation by adopting ensemble Kalman filtering; and finally, a high-resolution seamlessly-connected two-dimensional ocean current field product is output. According to the method, the problems of discontinuous flow field, high data missing rate and difficulty in GNSS-R ocean current signal extraction in a coastal-ocean transition zone of a traditional method are solved, and physically consistent and high-precision business ocean current monitoring from a coastal area to an open sea area is realized.
Owner:FOUNDER INT WUHAN

Rapid calculation method and system for significant wave height field of tropical cyclones in open sea area

The invention discloses a rapid calculation method and system for an effective wave height field of a tropical cyclone in an open sea area, and the method comprises the following steps: embedding a dynamic wind field structure into to-be-measured tropical cyclone event information, constructing a space-time distribution field, extracting a cyclone key parameter and a relative position coordinate in a preset time period containing the current moment, and calculating the effective wave height field of the tropical cyclone in the space-time distribution field; forming a time sequence matrix; and inputting the time sequence matrix into a space-time fusion neural network model, and quickly calculating the effective wave height space-time distribution of the open sea area at the target moment. According to the method, the neural network is adopted to replace a traditional numerical value wave model for effective wave height prediction, transformation from low-precision and high-time-consumption traditional numerical value simulation to high-precision and low-time-consumption intelligent modeling is achieved, and the tropical cyclone wave field prediction and modeling quality and efficiency are greatly improved.
Owner:SHENZHEN UNIV

Reef-embankment cooperative system based on dredged object resource utilization and port channel flow slowing, wave dissipating and silt reducing method

The invention discloses a reef-embankment cooperative system based on dredged object resource utilization and a port channel flow slowing, wave dissipating and silt reducing method, and relates to the technical field of port channel engineering. The system comprises a dredge ecological reef body and a composite energy dissipation embankment, the dredge ecological reef body and the composite energy dissipation embankment are cooperatively arranged from an open sea to a shoreline along a channel to form a three-stage hydrodynamic regulation gradient, 50%-70% of dredge is used as a main material of the ecological reef body, cement and a composite additive are matched, and the ecological reef body is put according to hydrodynamic partitions after pretreatment, mixing and forming maintenance; the embankment is divided into a foundation layer (graded riprap), an energy dissipation layer (concrete special-shaped blocks) and a protective layer (containing planting hole precast blocks and planting saline-alkaline tolerant plants). The technical effects that the collaborative wave dissipation rate is 50%-60%, the flow slowing rate is 25%-35%, the silt reduction rate is 40%-50%, the dredged material utilization rate is 50%-70%, and the cost is reduced by 40% or above can be achieved, meanwhile, the biological diversity can be improved, and engineering, resource and ecological values are achieved.
Owner:TIANJIN UNIV

Super-large-span tide gate with self-stabilizing structure

ActiveCN223562106UBarrages/weirsOpen seaRiver regime
The utility model discloses an ultra-large span tide gate with a self-stabilizing structure, which comprises gate foundations arranged on two sides of a riverway estuary, and the gate foundations are provided with arc-shaped guide grooves and spherical trunnions; the spherical trunnions are connected with one ends of the water retaining gates, the other ends of the water retaining gates make contact with each other to be in a closed state when storm surge comes, and the closing point of the water retaining gates is located on the open sea side of the connecting line of the two spherical trunnions. An arc-shaped stability maintaining piece matched with the arc-shaped guide groove is arranged in the arc-shaped guide groove, one end of the arc-shaped stability maintaining piece is fixedly connected with the water retaining gate, and the other end of the arc-shaped stability maintaining piece is connected with the hoist. The device has the advantages of being stable in structure, flexible to open and close, safe in operation, convenient and fast to overhaul and the like, navigation and the hydrological river regime of an original river channel are not affected in the processes of structural design, manufacturing, transportation, installation, overhaul and maintenance and the like, and the influence on the original river channel can be reduced to the maximum extent.
Owner:YELLOW RIVER ENG CONSULTING CO LTD

A method for identifying a wind turbine in a SAR image of a complex tidal flat subsoil

The present application relates to a kind of tidal flat complex underlying surface wind turbine SAR identification method, comprising: generating annual SAR time series composite image;The mean value of each pixel in the preset backscattering coefficient interval of the composite image is calculated, and high backscattering value image is generated;High backscattering value image is binarized and segmented;The morphological processing is carried out to the binarized image to enhance high backscattering target;Multi-scale screening mechanism based on geometric features is established;Difference spatial resolution processing is implemented, and wind turbine point vector data is output.The beneficial effects of the present application are: the present application effectively improves the identification precision of tidal flat and open sea wind turbine, and provides reliable technical support for fine evaluation and management of offshore wind power resources.
Owner:NINGBO UNIV

A graphene film for power generation on the hull of an ocean-going vessel

The application discloses a graphene film for power generation of a ship body of an ocean-going ship and relates to the ship plating film technical field; the PET / PE / nGr-PVDF attached to the ship body can make the ship body have higher heat dissipation efficiency; because the heat conductivity coefficient of the graphene film is about 5000 W / m*K, the heat conductivity coefficient of stainless steel is 50-60 W / m*K, and the ship sails in the open sea, the rapid transmission of excessive heat can make the ship have a more stable running state. Furthermore, the PET / PE / nGr-PVDF covering the stainless steel structure of the ship body can not only prevent the corrosion of the stainless steel but also can continuously generate power, thereby improving the endurance of the ship, and because the graphene film is a super-hydrophobic layer, the rapid separation of the washed seawater can reduce the adhesion of pollutants.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA +1