161 results about "Open sea" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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.

The invention relates to a wedge block measuring device and method suitable for pipe barrel pile open sea soil acting force, the device comprises a sliding wedge block and a piezoelectric ceramic sensor fixed on the sliding wedge block, and the piezoelectric ceramic sensor is in communication connection with a controller of an offshore operation platform and is used for measuring the pressure value of the sliding wedge block; the multiple sliding wedge blocks are evenly arranged in the circumferential direction of the pipe barrel pile. The device is used for measuring the acting force of remolded sea soil outside a pipe barrel pile in the installation process, and then actual sea soil bearing performance data such as the soil weight and the static soil pressure coefficient are obtained through calculation.

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.

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.

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.

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.

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.