35 results about "Metocean" patented technology

The invention relates to a wave glider with an evaporative waveguide monitoring system. Through an evaporation waveguide electromagnetic channel monitoring system carried on a wave glider, a near seasurface channel monitoring link is established; according to application requirements, a motion path of the wave glider is planned; channel monitoring data and marine meteorological data of a specified sea area and a specified frequency are obtained; through a beidou communication technology, data information monitored in real time is transmitted to a shore-based service platform; and algorithms such as evaporation waveguide inversion, interpolation and the like are utilized to acquire large-area region evaporation waveguide distribution characteristics. The wave glider is wide in monitoring area, long in endurance time, real-time, accurate and the like, mass basic data accumulation, marine environment real-time monitoring and marine monitoring data sharing can be finally achieved, and data support and technical support are provided for marine and electromagnetic environment detection, spectrum management, electronic system aided decision making and the like.

The invention discloses an environmental risk early warning system for marine salvage. The system comprises a data storage module, a marine meteorological data acquisition module, a sea area risk assessment module, a ship route navigation risk assessment module, a salvage type risk assessment module and an early warning module. The data storage module is used for storing membership matrixes and weight coefficients of various risk factors of different types of rescue ships in different states; the marine meteorological data acquisition module is used for acquiring marine and meteorological data, and the sea area risk assessment module is used for assessing sea area navigation risk levels when a rescue ship navigates in a departure area and a rescue area; the ship route navigation risk evaluation module is used for evaluating the ship route navigation risk grade of the rescue ship when the rescue ship sails on the rescue ship route; the salvage type risk evaluation module is used for evaluating the rescue type risk grade when the rescue ship executes different rescue tasks; and the early warning module sends early warning information to the user. According to the invention, multi-dimensional evaluation and early warning can be carried out on the rescue risk of the rescue ship.

The invention provides a numerical mode sea surface wind speed correction method and device, electronic equipment and a storage medium. The method comprises steps of training a numerical mode sea surface wind speed correction model; obtaining numerical mode meteorological element data to be corrected; wherein the numerical mode meteorological element data comprises sea surface wind speed data; correcting the numerical mode meteorological element data according to a trained numerical mode sea surface wind speed correction model to obtain corrected numerical mode sea surface wind speed data; wherein the numerical mode sea surface wind speed correction model is obtained by training through a deep learning method based on historical numerical mode meteorological element data and space-time matching historical satellite remote sensing sea surface wind speed data. The method is advantaged in that the accurate numerical mode sea surface wind speed data can be obtained, the precision of the sea surface wind speed data in the numerical mode meteorological element data can be improved, the negative influence of the error on the subsequent application in the fields of marine meteorology and the like is effectively reduced, and the data application effect is effectively improved.

The invention discloses a data compression method suitable for marine meteorological visualization, which comprises the following steps of: step 1, reading original data, namely reading the original marine meteorological data, and extracting a time slice and meteorological element data; step 2, meteorological data preprocessing: performing integer processing on the original data; step 3, removingcorrelation of the meteorological data; and step 4, compressing code stream data and performing entropy coding on the meteorological data subjected to decorrelation. Compared with an existing data compression mode, the method is more suitable for compressing the data visually displayed by the marine meteorology, the characteristics of high real-time requirement and large data volume of traditionalmeteorological data are fully considered, the marine meteorological data can be compressed, the data repeatability is reduced, redundant labels are removed, and the data size is reduced to the maximum extent. The method specifically comprises the steps that 1, original data can be read; 2, truncating is performed according to the observation precision of the elements; and 3, the correlation of the meteorological data is removed; and 4, the marine meteorological data compression ratio is increased.

The invention relates to an anchorage buoy station data quality control method. The anchorage buoy station data comprises historical data, comparison data and mode data. The method comprises the stepsof: selecting an extreme value corresponding to each meteorological element according to the historical data to obtain a climatological boundary value corresponding to each meteorological element; correcting the historical data according to the climatological boundary value to obtain corrected data; respectively subjecting the comparison data and the corrected data to verification with the mode data according to a preset algorithm to obtain a verification result; and judging whether the climatological boundary value achieves position correction on the historical data according to the verification result. According to the technical scheme, powerful guarantee can be provided for construction and operation of a marine meteorological observation system in China, scientific research and actualbusiness requirements are combined, and especially in the aspect of anchorage buoy observation, the blank in the aspect of quality control over anchorage buoy observation data is filled up.

The invention discloses an intelligent dispatching method for offshore wind power ships. The method comprises the steps that maintenance resource information of a certain offshore wind power plant iscollected; obtaining a maritime maintenance task list; screening out a seakeeping operation time window according to seakeeping operation conditions through the marine meteorological forecast data andthe actually measured data of the wind field; and calculating an optimal operation and maintenance scheme by taking minimization of operation and maintenance cost as a target according to the obtained maintenance resources, the maintenance tasks and the sealable operation time window. According to the method, the optimal ship scheduling scheme is determined through an intelligent algorithm in combination with the maritime maintenance task, the maintenance resource information and the marine meteorological forecast data, the operation and maintenance cost is reduced, and the operation efficiency is improved.

The invention discloses a tidal power generation device comprising a water storage chamber and a marine engine generating unit. The tidal power generation device is characterized in that a buoyancy chamber full of air is arranged at the lower part of the water storage chamber; an oil cylinder is arranged at the lower part of the buoyancy chamber; the oil cylinder is fixedly connected with a base; an oil outlet pipe and an oil inlet pipe are arranged at the bottom of the oil cylinder; the oil outlet pipe is communicated with a turbine generating unit through an oil outlet one-way valve; and the oil inlet pipe is communicated with an oil storage tank through an oil inlet one-way valve. With the adoption of the tidal power generation device, the problems that the traditional device is poor in self-starting property, low in efficiency and the like can be solved; the tidal power generation device has a good comprehensive property, and is particularly applicable to being used as a long-acting power supply electrode of a beacon light, marine hydrology remote-sensing equipment and maritime meteorology remote-sensing equipment with less electricity. Particularly, the tidal power generation device supplies power to coasts and island areas with inconvenience in traffic, difficulty in power supply or no normal power supply, and further supplies the power to coastal villages, garrisons, farms and the like.

The invention provides a marine meteorology-based wind power plant maintenance route calculation method and system, and the method comprises the steps: generating a navigation region through wind power plant position data and a port position, generating a route library map in the navigation region according to navigation ocean landform data, and supplementing and generating a basic route map through a large amount of historical marine meteorology data; generating a current route map through the current route ocean meteorological data; a user provides navigation data, generates an initial route on a current route map, feeds back the initial route to the user, selects the initial route, adjusts the initial route to generate a final planned route, verifies the final planned route to generate an actual route, and monitors and adjusts the actual route in real time until the user goes to the sea; and monitoring current meteorological data, obtaining navigation data, sharing meteorological data of a front waypoint area of an actual route to a user in real time, predicting meteorological change conditions in a future time period according to the current meteorological data, updating a previous route map, and sharing the previous route map to the user. According to the invention, the sea route can be quickly generated and monitored in real time, and weather conditions in front of the route are displayed in different areas, so that a detour route is formulated in advance, and the probability of ship return caused by disastrous weather is reduced.

The invention provides a rotatable truss and a strength resistance evaluation method thereof, and belongs to the field of marine meteorological data acquisition, and the rotatable truss comprises a rotating structure, a truss rear main body and a truss front main body; the rotating structure comprises two pin shafts and a fixing pin; the two pin shafts are respectively connected with the truss front main body and the truss rear main body; the truss rear main body and the truss front main body are made of pultrusion carbon fiber reinforced composite material profiles; and the rotating structure is used for rotating the truss front body. The strength resistance evaluation method comprises the following steps: constructing a first truss structure model; applying the working condition parameters to the first truss structure model, and acquiring the strength resistance parameters of the first truss structure model under different working conditions; and comparing the strength parameters of the first truss structure model and the actual truss, and evaluating whether the actual truss meets the actual application requirements or not. According to the invention, marine hydrological detection equipment can be replaced conveniently; besides, wind load resistance can be judged in advance, and the safety of the truss in practical application is improved.

The invention provides a short-term ship navigational speed prediction method based on a time sequence random forest. The short-term ship navigational speed prediction method comprises the following steps of obtaining modeling data and performing data preprocessing; introducing the time sequence data into a random forest learner to construct a brand new prediction model framework; setting related parameters of the model; and predicting by using the model. According to the method, the short-term speed of the ship to water can be predicted by using the historical sailing speed of the ship and the marine weather forecast data, the phenomenon that the ship engine is directly used for monitoring the data in real time is avoided, the requirement for shipborne monitoring equipment is low, and meanwhile prediction and afterwards experimental analysis of the ship speed are achieved in advance. The mean absolute error (MAE), the root-mean-square error (RMSE) and the coefficient of determination (R2) of the model are superior to those of other three common models.

The invention discloses a location-based offshore comprehensive service platform and a rescue method thereof, and relates to the technical field of offshore rescue, and the platform comprises a transmission module, an early warning service networking group, a weather networking group, a Beidou positioning networking group, a ship information storage, a map module, an acquisition module and a processing module. A ship terminal system collects the current geographic position, the current environment meteorological information and the marine environment information of a ship terminal area, and the marine meteorological information and the ship terminal position information are shared in real time. Collision of the ship terminal caused by severe weather and prevention in advance and avoidance of severe differences in time in severe weather are effectively avoided, sailing safety is improved, limitation of existing marine fishery information service is effectively changed, pertinence is high, the application range is wide, and in addition, the marine information server establishes ship information storage for targeted rescue, and the ship end shares the marine information in real time, so that the ship can be conveniently guided to rescue at the nearest maintenance point.

The invention discloses a tidal power generator. The tidal power generator comprises a water storage bin and a turbo-generator set. The tidal power generator is characterized in that a floating bin which is full of air is arranged at the lower part of the water storage bin; an oil cylinder is arranged at the lower part of the floating bin; the oil cylinder is fixedly connected with a base; an oil outlet tube and an oil inlet tube are arranged at the bottom of the oil cylinder; the oil outlet tube is communicated with the turbo-generator set by an oil outlet check valve; and the oil inlet tube is communicated with an oil storage tank by an oil inlet check valve. The tidal power generator overcomes the problems of poor self-starting performance, low efficiency and the like of the traditional device, has good integrated performance, is extremely suitable for being used as a long-term power supply for a marker light, a maritime hydrographic remote measuring device and a maritime meteorological remote measuring device which consume less electricity, and is in particular suitable for supplying power to coastal villages, garrison, farms and the like at seashore regions and island regions which are inconvenient in transportation, difficult to supply power or cannot be normally supplied with power.

The invention belongs to the technical field of marine monitoring of ships, particularly relates to a marine meteorological monitoring device based on a ship, and aims to solve the problems that an existing marine meteorological monitoring device of a marine ship is poor in installation stability, does not have a damping effect, is prone to cause error increase due to stormy waves, is inconvenient to adjust in height and the monitoring precision is reduced. According to the technical scheme, the monitoring device comprises an installation table, a base, a monitoring assembly, an adjusting assembly, a buffering assembly and a mounting assembly, the monitoring assembly comprises a wind speed and wind direction monitor, a temperature and humidity monitor and an atmospheric pressure monitor, the wind speed and wind direction monitor, the temperature and humidity monitor and the atmospheric pressure monitor are all fixedly installed at the top of the installation table, and two supporting plates are both fixedly installed at the bottom of the installation table. The monitoring device is stably mounted and fixed through the mounting assembly, and the height of the monitoring device is adjusted through the adjusting assembly, so that the monitoring accuracy is improved.