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215 results about "Open sea" patented technology

Near-shore wind wave prediction method and system based on data driving

ActiveCN119293745AAchieving accurate forecastsEffectively capture non-linear relationshipsWeather condition predictionBiological modelsOpen seaMulti source data
The invention discloses a near-shore wind wave prediction method and system based on data driving, and the method comprises the steps: obtaining multi-source data of long-time series data of each meteorological data variable of a research region, carrying out the preprocessing, selecting a target variable and a feature variable, and carrying out the region grid point division of the research region; taking the characteristic variables of the open sea lattice points as a reference sequence, taking the target variables of the inner sea or near-shore lattice points as a target sequence, and analyzing a time delay effect and a spatial propagation mode between the reference sequence and the target sequence; introducing the analysis result as priori knowledge into a deep learning model, and training the deep learning model to obtain a typhoon prediction model; and acquiring real-time data of each meteorological data variable in the research area, preprocessing the real-time data, and inputting the characteristic variable in the real-time data into the typhoon prediction model to obtain a prediction result of the target variable. According to the method, the time lag effect and the spatial relation of all variables of the open sea on the offshore area information are comprehensively considered, fusion and integration of multi-source data are achieved, and efficient and accurate real-time prediction is carried out.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND 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

Design method of ultra-large span tide gate with self-stabilizing structure

PendingCN119465885Aensure life safetyensure safetyBarrages/weirsOpen seaRiver regime
The invention discloses a design method of an ultra-large-span tide gate with a self-stabilizing structure. The tide gate comprises gate foundations arranged on the two sides of a riverway estuary, and each gate foundation is provided with an arc-shaped guide groove and a spherical supporting hinge; 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. Navigation and the hydrological river regime of the original river channel are not affected in the processes of structural design, manufacturing, processing, 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

Sectional type unmanned ship global path planning method in whole process of departure, navigation and arrival

The unmanned ship global path planning method provided by the invention covers the whole process from departure to sailing to an open sea area and then to entering the port, firstly sets detailed sailing routes and parameters, distinguishes three routes of departure, open sea area and entering the port, configures or dynamically calculates the resolution and safety distance of each segment of A star planning grid, and finally calculates the global path of the unmanned ship according to the resolution and safety distance of each segment of A star planning grid. Dividing a planning area according to navigation routing points, obtaining sea chart obstacle data in the planning area, performing data point interpolation processing, planning a path by applying an A star algorithm of a corresponding grid resolution under the condition of considering the safe distance of the unmanned ship aiming at each section of area, and performing path point simplification smoothing to ensure that all obstacles are avoided; and finally, seamlessly splicing the three paths of departure, open sea area and arrival to form a complete and safe global navigation path. According to the method, specific requirements of different sea areas are considered, a more refined path planning strategy is provided, an efficient and safe navigation scheme is provided for the unmanned ship, and the accuracy and efficiency of path planning are improved.
Owner:DEEP SEA TECH & SCI TAIHU LAB LIANYUNGANG CENT

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

Fish swimming adaptability test training equipment

The invention discloses fish swimming adaptability test training equipment, and relates to fry training equipment, the fish swimming adaptability test training equipment comprises a support and a work box, the work box comprises a training chamber, a sealing plate is connected above the training chamber, and the sealing plate seals the training chamber; the outer side of each buffer chamber is provided with a grating plate; a temperature control system, a salt control system, a dissolved oxygen monitoring system and an inflation system are further arranged in the working box; a partition plate is connected between the training chamber and the buffering chamber, a connecting opening is formed in one side of the partition plate, a sealing door is connected into the connecting opening in a sealed mode, and the training chamber is connected with a circulating assembly and a wave making assembly. The swimming adaptability training device has the advantages that the adjustable wave making assembly and the circulating assembly are arranged in the training room, the wave making assembly is used for making water waves of different amplitudes on one hand to simulate the open sea scene, and meanwhile accelerated flowing of water is achieved, so that swimming adaptability training is conducted on fry, stress is avoided, and the survival rate is increased.
Owner:GUANGDONG OCEAN UNIVERSITY

Device for measuring solid material level in container in non-direct contact mode

PendingCN120489287ARadiation pyrometryMachines/enginesOpen seaContact mode
The invention discloses a device for measuring the solid material level in a container in a non-direct contact manner, which is arranged on a tank body of a sand collecting tank and comprises a series of temperature probes, signal transmission lines, a main transmitter, a main signal transmission line and a main monitor, and the signal transmission lines, the main transmitter, the main signal transmission line and the main monitor are respectively arranged corresponding to the different temperature probes. The device is suitable for detecting and transmitting material level signals of solid sand in the sand collecting tank after separation and collection at the seabed, the purposes of online detection and control are achieved, the sand level including the liquid level in the container sand collecting tank or the sand storage tank can be effectively detected in real time, and it is ensured that the sand removing operation can be normally carried out. The system has the advantages of no environmental pollution, high monitoring efficiency and strong anti-interference capability, and provides important technical support for long-period seabed oil and gas exploitation, especially deep sea and open sea oil and gas exploitation.
Owner:SHANGHAI SHAGE OCEAN ENG CO LTD +1

Marine intelligent purse seine culture management equipment

The invention relates to the technical field of marine aquaculture, in particular to marine intelligent purse seine aquaculture management equipment which comprises an automatic bait casting system, a water quality detection module, an underwater inspection module, an intelligent sensing module, a photovoltaic power supply system, a light inducing device and an informatization center control module. Through real-time monitoring and intelligent early warning, the risk of sudden change of water quality is reduced, accurate feeding is realized through combination of an automatic bait casting system and fish shoal behaviors, the bait utilization rate is improved, resource waste is reduced, the fish shoal state and the purse seine safety can be dynamically monitored through an underwater patrol module, management timeliness and visibility are enhanced, and the system is suitable for popularization and application. A photovoltaic power supply system and low-power-consumption equipment are adopted, the long-time stable operation capacity is achieved, and the device adapts to the complex open sea environment.
Owner:ZHONGZHI RUIKE INTELLIGENT TECH (SHENZHEN) CO LTD

Wind-light-hydrogen integrated energy supply system based on reversible solid oxide fuel cell

The invention relates to a wind-light-hydrogen integrated energy supply system based on a reversible solid oxide fuel cell, which is specially designed for special areas such as open sea islands, frontier sentries and the like. The system integrates a wind power generation module (1) and a photovoltaic power generation module (2), and converts wind energy and solar energy into electric energy. Redundant electric energy is used for producing hydrogen by electrolyzing water in an SOEC mode by the RSOC module (3) and is stored in the solid hydrogen storage module (4). And when the energy demand peak or the wind-light-electricity is insufficient, the RSOC module is switched to the SOFC mode, and hydrogen is converted into electric energy to be output. The system is further provided with a seawater desalination module (5), and the RSOC waste heat is used for desalinating seawater. And the ultrapure water production module (7) is used for producing industrial-grade ultrapure water by condensing the high-temperature steam. And the intelligent monitoring module (6) monitors in real time and controls the modules to operate cooperatively. The system has the advantages of efficient energy conversion, high environmental adaptability, multifunctional expansion and the like, and provides a stable, environment-friendly and economical energy solution for special areas.
Owner:HUAZHONG UNIV OF SCI & TECH

Mooring self-recovery floating renewable energy hydrogen production all-dimensional angle test platform

The invention relates to a mooring self-recovery floating renewable energy hydrogen production omni-directional angle test platform which comprises a floating foundation floating on the sea surface, a self-recovery mooring device is installed on the top of the floating foundation in a matched mode, an upper box body is concentrically installed on the top of the floating foundation, the upper box body comprises the self-recovery mooring device, and the self-recovery mooring device is installed on the top of the floating foundation in a matched mode. The top of the upper box body is cooperatively provided with a rotating device, a to-be-tested device is placed on the rotating device, and the to-be-tested device is driven by the rotating device to rotate, so that the angle between the to-be-tested device and the wave direction is adjusted; the boat anchor is anchored and fixed through the self-recovery mooring device, so that the floating foundation stays in the target sea area, and the performance of the device to be tested is tested in the target sea area. The to-be-tested device can be carried to an open sea area for testing, so that the operation state and the operation effect of the to-be-tested device in an open sea motion environment can be effectively verified.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

Payload transport and delivery method, system and multi-platform unmanned cargo delivery vehicle

A method of transporting cargo, a cargo transport system and an unmanned Wing In Ground Effect vessel (UWIG) for transporting the cargo. A wake up signal indicates assignment of a new delivery. The UWIG begins pre-flight, causes cargo to be transported to the UWIG, and causes the cargo loaded into UWIG storage compartments. Once loaded and the loaded UWIG is ready, the UWIG taxis, e.g., to the open sea. Environmentally sealed PAR thrust fans provide PAR thrust during takeoff. The UWIG flies to a delivery location where cargo is unloaded, and may be stored.
Owner:PETERSON WILLIAM C

Relay tracking application method and system for large and medium-sized ships in open sea

The invention discloses a relay tracking application method and system for large and medium-sized ships in open seas, and the method comprises the following steps: S1, obtaining the current position information of a target ship, and delimiting a circular region of interest based on the current position information; s2, performing overhead satellite calculation within half an hour based on the region of interest; the current position of the target ship is determined for uploading tasks to satellites passing through the top attention area in a short time; after receiving the AIS signal of the target ship, the micro-nano satellite transmits the AIS signal to the ground; and S3, selecting to enter a regular imaging tracking mode under the condition of stable AIS signal receiving or a search imaging tracking mode under the condition of short-time AIS signal loss according to the AIS signal receiving condition, and carrying out relay tracking on the target ship. The method has the advantages that the remote sensing image data transmission quantity for carrying out the tasks and the time consumed for completing the tasks can be greatly compressed, and the requirements of high-timeliness tasks such as high-sea far-field ship escorting and marine ship searching and rescuing are met.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV

Sailing wind turbine vessel capable of pivoting for efficient and resilient energy production and energy transport

The invention describes a wind turbine vessel (1) which autonomously sails at high sea by means of wind turbines (2) and produces, stores and transports energy. The wind turbine vessel (1) is a multi-hull vessel having three or more hulls (3), between which at least one wind turbine (2) is installed. The hulls (3) are installed rotationally symmetrically parallel to the longitudinal axis of the wind turbine vessel (1). This makes it possible for the wind turbine vessel (1) to pivot, that is to say to rotate about its own longitudinal axis, in order to be resilient in the case of sea storms. In the event that it capsizes in strong winds or waves, it retains its complete structural and functional integrity as a result of its rotationally symmetrical design. The wind turbines (2) are used simultaneously in two ways. Firstly, they are used for the production of electrical energy which is stored on board in the hulls (3), for example in batteries or with power-to-hydrogen. Secondly, the wind turbines (2) are used as sails for driving and controlling the wind turbine vessel (1) by means of yawing movements. It can thus sail autonomously at high sea in areas in which the wind conditions are favourable for energy production, that is to say it can use stronger and more uniform winds, and transport the energy stored on board to a location where it can be fed into the energy grid.
Owner:SAILWINT GMBH

Marine wide area detection method and detection radar device using existing electromagnetic wave source

The invention relates to an offshore wide-area detection method and a detection radar device using an existing electromagnetic wave source, and aims to solve the problem that a traditional shore-based radar is affected by earth curvature, is extremely limited in open sea detection range and is difficult to meet the requirements of ocean resource development, offshore traffic management, safety guarantee and the like. The radar device receives existing electromagnetic wave source signals such as a star chain through the high-sensitivity antenna array to achieve wide-area detection, the antenna array adopts special layout and parameter setting, the self-adaptive beam forming technology is combined, the low-noise amplifier and the band-pass filter are matched, and the signal receiving quality is effectively improved. The signal processing system uses matched filtering, Doppler frequency shift detection, multi-target tracking and other algorithms to accurately extract target information. And the data fusion and display system fuses multi-source data and visually presents the marine situation. The device obviously expands the marine detection range, reduces the cost, is high in real-time performance, can effectively improve the marine target detection and management capability, and has wide application prospects in various marine fields.
Owner:SHANGHAI JIAOTONG UNIV

Remote offshore energy island direct current power transmission system and grid-connected and off-grid operation control method

The invention provides a long-distance offshore energy island direct-current power transmission system and a grid-connected and off-grid operation control method, after offshore wind power and offshore photovoltaic power are gathered on an offshore energy island, power fluctuation is stabilized by using a hydrogen production and energy storage system, and then electric energy is transmitted to an onshore power grid in a flexible direct-current power transmission mode; when the sending-out system breaks down, off-grid operation of the offshore energy island system can be achieved through cooperative control of wind power, photovoltaic power, hydrogen production, energy storage and the flexible and straight sending-out system; the available rate of an offshore new energy power generation system can be fully improved, new energy output fluctuation is stabilized, a solution is provided for large-scale new energy output in open sea, and remarkable economic benefits and good application prospects are achieved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Absolute relative gravimeter combined measurement method

The invention discloses an absolute relative gravimeter combined measurement method. The method comprises the following steps: S1, taking a drift error of a strapdown relative gravimeter, a change rate of the strapdown relative gravimeter, other errors of the strapdown relative gravimeter, a change rate of the other errors of the strapdown relative gravimeter, and an error of an atomic interference absolute gravimeter and a change rate of the atomic interference absolute gravimeter as system states; s2, taking the difference of gravity anomalies measured by the two gravimeters as measurement, and constructing a combined measurement model; and S3, predicting a reliable error state through robust Kalman filtering based on a maximum entropy criterion. According to the method, the characteristics of an atom interference absolute gravimeter and a strapdown gravimeter are combined to complement each other, the precision and reliability of open sea gravity measurement are effectively improved, and the method is practical and has wide application prospects. The problems of strapdown relative gravimeter drift error accumulation and poor dynamic performance of an atomic interference absolute gravimeter during open sea measurement are effectively solved, through combined measurement of the strapdown relative gravimeter and the atomic interference absolute gravimeter, it is avoided that the relative gravimeter needs to return at regular time for drift error calibration, and the gravity measurement precision is improved.
Owner:NAVAL UNIV OF ENG PLA

Lightweight ocean data acquisition and processing system and method based on edge calculation

The invention provides a lightweight ocean data acquisition and processing system and method based on edge computing, and the system comprises a self-adaptive data compression module which is used for carrying out the self-adaptive real-time compression of original ocean data acquired by a buoy terminal, obtaining compressed ocean monitoring data, and transmitting the compressed ocean monitoring data to an edge computing node; the data processing module is used for decompressing and preprocessing the compressed marine monitoring data by the edge computing node and inputting the preprocessed marine monitoring data into a marine anomaly diagnosis lightweight model for real-time anomaly detection; and the data transmission module is used for sending the ocean monitoring data processed by the edge node and the anomaly detection result to a shore data center by adopting an incremental transmission mode. By integrating a sensor data compression technology and an ocean anomaly diagnosis lightweight model, real-time acquisition, efficient compression, rapid processing and anomaly detection of ocean data in an open sea environment are realized.
Owner:STATE OCEANIC ADMINISTRATION SOUTH CHINA SEA INFORMATION CENT +2

Thin film type floating photovoltaic device and aquaculture net cage

The utility model discloses a thin film type floating photovoltaic device and an aquaculture net cage, and relates to the technical field of water photovoltaic power generation, the thin film type floating photovoltaic device comprises a thin film, an inner buoyancy ring and an outer buoyancy ring; a plurality of photovoltaic panels are arranged on the upper surface of the thin film; the inner buoyancy ring is connected with the inner circumference of the film; a first lifting assembly is arranged at the top of the outer buoyancy ring and connected with the periphery of the thin film. The first lifting assembly is used for driving the periphery of the film to move in the first direction so that the periphery of the film can be higher than the inner periphery of the film. The first lifting assembly is arranged on the outer buoyancy ring, the first lifting assembly is used for driving the film to move in the first direction, the outer periphery of the film is higher than the inner periphery of the film, the inclined face is formed, and therefore water accumulated on the film can be drained away along the inclined face, and the drainage effect is achieved; therefore, the problem that a thin film type floating photovoltaic device arranged in an open sea area is easy to damage and sink to the bottom due to the problems of seawater upwaves, water irrigation and the like is solved.
Owner:SOUTHERN MARINE SCIENCE & ENGINEERING GUANGDONG LABORATORY (ZHANJIANG)

Method and system for optimizing cold water supply control strategy of artificial habitat

The invention discloses a method and system for optimizing an artificial habitat cold water supply control strategy, and relates to the technical field of coral cultivation. According to the scheme, through environment data, a temperature prediction model, a preset optimization algorithm and iterative optimization of a cold water supply control strategy, advanced prediction, simulation and closed-loop optimization control of the seawater temperature of an artificial habitat coral culture area in an open sea area are achieved. While the prevention accuracy and intervention efficiency of the coral whitening heat stress are improved, maximum energy conservation and consumption reduction are realized, and the optimal growth temperature of the coral is intelligently maintained.
Owner:HAINAN RES INST OF ZHEJIANG UNIV

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

Medium-strength high-impact-toughness titanium alloy and preparation method thereof

The invention belongs to the technical field of titanium alloys, and particularly relates to a moderate-strength high-impact-toughness titanium alloy and a preparation method thereof.The moderate-strength high-impact-toughness titanium alloy is composed of, by mass, 91.39-95% of Ti, 3.7-4.2% of Al, 1.7-2.3% of V, smaller than or equal to 0.3% of Zr, smaller than or equal to 0.25% of Fe, smaller than or equal to 0.1% of C, smaller than or equal to 0.12% of Si, smaller than or equal to 0.04% of N, smaller than or equal to 0.15% of O, smaller than or equal to 0.006% of H and smaller than or equal to 0.3% of the total content of other impurities. The titanium alloy material is simple in composition and processing technology and low in production cost, the strength and impact toughness of the alloy are greatly improved while good processing plasticity is kept, good mechanical performance can still be kept under the high-temperature condition (the environment temperature is higher than 400 DEG C), and the titanium alloy material has wide application prospects in the fields of aerospace, deep sea, open sea and the like.
Owner:CHONGQING FENGLI TITANIUM NEW MATERIAL TECH CO LTD

Method for arranging multi-layer antifouling curtain cloth in open water area

The invention provides an open water area multi-layer antifouling curtain arrangement method, and belongs to the technical field of dredging engineering environmental protection, and the method comprises the following steps: S10, arranging a single-layer light antifouling curtain on the outer side of a coastal construction area of land area equipment; s20, a double-layer heavy antifouling curtain is arranged on the periphery of the construction area of the cutter suction dredger; s30, a secondary sedimentation tank, an overflow dam and a drainage box culvert are arranged in the hydraulic reclamation area; s40, a plurality of barrages are arranged on the drainage channel to slow down the flow speed; s50, three layers of heavy antifouling curtains are arranged at the tail water estuary to serve as the last defense line; the arrangement method of the multi-layer anti-fouling curtain in the open water area further comprises an anchoring installation method of the anti-fouling curtain. The anti-fouling curtain installation method is optimized, the stability of the curtain in the open sea area is improved, meanwhile, the anti-fouling curtain installation method is flexibly combined, the construction suspended matter concentration of the open sea area is reduced to the maximum extent, and water quality pollution to the peripheral ecological habitat and the surrounding sea area is isolated as much as possible.
Owner:CCCC GUANGZHOU DREDGING CO LTD +1

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

Metropolitan disaster prevention facility

To provide a metropolitan disaster prevention facility.SOLUTION: An urban disaster prevention facility comprises a tsunami-resistant ceiling river dike installed in a sea near a coastline and makes river water from both ends of a ceiling river along a coastline into the open sea. The urban disaster prevention facility comprises a ceiling river dike 5 not requiring land reclamation and is provided in a sea on a comparatively shallow seabed continuously from neighboring riverbanks of a plurality of neighboring rivers, and a tsunami countermeasure dike 7 that is provided on an open sea side of the ceiling river levee 5 not requiring land reclamation and has a plurality of openings 7a whose both ends connect to the coastline.SELECTED DRAWING: Figure 2
Owner:辻本嘉义

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

Staged hot functional test method

The present invention discloses a staged hot functional test method, comprising the following steps: S1, before the water intake and the drain are connected to the open sea, a commissioning test is performed with the main steam isolation valve of the VVP system closed, the CRF system shut down, and the SEC system taking temporary temperature control measures to ensure safe operation; the temporary temperature control measures taken by the SEC system include: connecting the PX pump room forebay and the GH hot water return ditch to establish a SEC closed circulation loop; operating the SEC closed circulation loop to allow the water in the PX pump room forebay to circulate within the SEC closed circulation loop; S2, after the water intake and the drain are connected to the open sea, relevant tests for opening the main steam isolation valve of the VVP system and some BAS tests and conventional island tests that require the cooperation of the CRF system are performed. The staged hot functional test method of the present invention divides the hot functional test into two stages and performs them step by step to ensure the early start of the hot test and the integrity and effectiveness of the hot test items.
Owner:CHINA NUCLEAR POWER ENGINEERING COMPANY LTD +2