11 results about "Open sea" patented technology

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.

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.

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.

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.

This invention belongs to the field of intelligent collision avoidance and early warning technology for ships, specifically relating to a method and system for collision avoidance and early warning in open sea areas. The method includes the following steps in sequence: multi-source navigation data acquisition and analysis, intelligent filtering of open water conditions, real-time calculation of collision risk parameters, collision risk early warning triggering, automatic recording of close-range navigation events, and ship-shore synchronization of early warning and recorded information. The main hardware used in the system includes an AIS signal controller, marine ARPA radar, GPS equipment, gyrocompass, serial port server, switch, collision avoidance tablet computer, captain's cabin computer, ship-side communication host, and shore-side platform. This invention aims to solve the problems of "alarm fatigue" and safety risks caused by numerous invalid alarms and poor scene adaptability in traditional collision avoidance early warning systems during navigation in open sea areas by integrating intelligent scene filtering, accurate risk calculation, and ship-shore collaborative management into a system and method, thereby achieving efficient and reliable automatic collision early warning.

The present application relates to ultra-high performance seawater sea sand concrete, belongs to concrete technical field;Seawater sea sand concrete technology can effectively solve the problem of lack of building materials in the open sea engineering, reduce the engineering cost, shorten the construction period, but the seawater is rich in a large number of chloride ions and sulfate ions will accelerate the corrosion rate of stainless steel fiber network in concrete, the present application prepares a kind of amphiphilic corrosion inhibitor with hydrophilic sulfonic acid group and hydrophobic trifluoromethyl in structure, this amphiphilic structure can make corrosion inhibitor have better dispersion effect in concrete, and when amphiphilic corrosion inhibitor disperses in concrete, the trifluoromethyl in it will tend to be far away from water environment, thereby driving amphiphilic corrosion inhibitor to the solid-liquid interface of the surface of stainless steel fiber enrichment, effectively improve the adhesion efficiency of corrosion inhibitor on the surface of stainless steel fiber.

The application relates to the technical field of marine engineering environment parameter calculation, and discloses a deepwater wave element calculation method suitable for long-period waves, which comprises the following steps: using global-scale ocean wave dynamics model output boundary wave parameters as boundary conditions; inputting the boundary conditions into a regional nearshore wave mathematical model to calculate and simulate parameters; comparing observed wave data with the simulated parameters, selecting a white cap dissipation coefficient with the minimum root mean square error, and feeding back the white cap dissipation coefficient to the model; using reanalysis wind field data to drive the regional nearshore wave mathematical model after the parameters are updated to generate a wave element set; extracting a wave element time sequence from the wave element set, screening and extracting annual extreme characteristic values according to a preset target period interval to generate an annual extreme sequence; fitting the annual extreme sequence by using a probability density curve, and outputting deepwater wave element return period extremes in combination with return period parameters. The application makes up for the defects of long-period swell energy loss in the open sea, and improves the accuracy of deepwater wave element extreme value calculation.

The present application belongs to the technical field of breeding and culturing of shellfish, and relates to a kind of breeding and culturing method of hard clam seedlings, which comprises the following steps: taking local wild hard clams in Tangshan coastal area as seed clams, transporting the seed clams to coastal mudflat ponds or outdoor ponds in Zhejiang or Shandong coastal area for bottom sowing and temporary breeding in early April every year, then placing the seed clams in a breeding workshop in Zhejiang or Shandong coastal area for fattening and maturation in mid-late May, inducing spawning and breeding seedlings after the gonad of the seed clams is matured, then preserving the seedlings in coastal mudflat ponds or open sea area in Zhejiang or Shandong coastal area to obtain large-size hard clam seedlings, and transporting the large-size hard clam seedlings to Tangshan coastal area for bottom sowing and culturing after the preservation of the seedlings is completed. The present application adopts the "relay type" large-size hard clam seedling culturing technology of bottom sowing and temporary breeding, indoor fattening and maturation, indoor seedling breeding and preservation in coastal mudflat ponds or open sea area, which significantly improves the success rate of seedling breeding, seedling preservation and culturing of hard clams.