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118 results about "Maritime navigation" patented technology
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Semi-submersible marine vehicle useful in bad weather, which operates remotely
PCT designated stage expiredWO2024260531A1Unmanned surface vesselsVessel safetyMaritime navigationKeel
The present invention relates to semi-submersible vehicle useful in bad weather operation comprising: 1- Two buoyant tubes (2) with equipment for balancing ballast water and moving the vessel, including electronic equipment; 2 - Two solid ballast tubes (3), which are the heavy keel of the vehicle attached to each one of the hull (2), 3 - Horizontal and vertical interconnecting struts (5); 4 - Two payload capsules (1) which are detachable; 5 - Upper deck (6) including (A) navigation lights, (B) sensors, (C) floaters, (D) tanks vent heads and (E) engine intake and exhaust ports; and 6 - Small water plane area upper structure (4), linking the deck (6), buoyant tubes (2), transfer intake, exhaust (4A), and vent lines, as well as power and data lines.
Owner:MCS FREE ZONE
Ship collision avoidance path planning method integrating improved satellite A and improved dynamic window algorithm
PendingCN119803469ANavigational calculation instrumentsBiological modelsMaritime navigationAlgorithm
The invention provides a ship collision avoidance path planning method fusing an improved satellite A and an improved dynamic window algorithm, and the method comprises the following steps: S1, adding node evaluation and child node extension optimization in an original satellite A algorithm, and obtaining an improved satellite A algorithm; s2, smoothing the global path by adopting a Floyd algorithm so as to remove redundant inflection points on the global path, reduce the ship steering frequency and improve the continuity of the global path; s3, based on a quaternary ship domain improved speed obstacle method, establishing a ship collision avoidance risk prediction model, and monitoring the collision risk of the ship in the process of sailing along the global path in real time; s4, adding a path yaw evaluation function and a threat cone evaluation function into an original dynamic window algorithm to obtain an improved dynamic window algorithm; and performing local collision avoidance path planning by using the improved dynamic window algorithm. According to the method, ship collision avoidance path planning in a dynamic unknown environment is realized, and ship collision avoidance rules and marine navigation requirements are met.
Owner:DALIAN MARITIME UNIVERSITY
Navigation channel navigation mark collision monitoring method and system based on multi-sensor fusion
InactiveCN119252079Aeasy to analyzeimprove accuracyClimate change adaptationMarine craft traffic controlMaritime navigationCollision detection
The invention relates to the technical field of marine navigation collision avoidance, in particular to a navigation channel navigation mark collision monitoring method and system based on multi-sensor fusion. The method comprises the following steps: acquiring ship data and water surface data; the navigation direction angle is determined, and the collision risk degree is determined according to the direction angle, the distance between the ship and the navigation mark and the ship speed; determining a collision trend performance index according to the numerical change trend of the collision risk degree; determining an inertial parameter influence index according to the total weight of the ship and the speed of the ship; determining a channel curve influence index according to the flowing direction of the water and the flow velocity of the water; determining the danger avoidance degree by combining the collision trend performance index, the inertial parameter influence index and the channel curve influence index; and carrying out collision early warning on the ship and the navigation mark at the current moment in combination with the collision risk degree and the avoidance risk degree. According to the invention, based on multi-dimensional data analysis, a more accurate navigation mark collision monitoring and early warning result is provided, and the accuracy of navigation mark collision detection is improved.
Owner:NANJING HANRONG INFORMATION TECH CO LTD
Marine navigation event processing scheme recommendation method and system based on prediction intention
InactiveCN119475120AImprove predictive performanceReduce the burden onMathematical modelsKernel methodsMaritime navigationEngineering
The invention discloses a prediction intention-based marine navigation event processing scheme recommendation method and system, and the method comprises the steps: firstly building an intention prediction model based on a machine learning method, and obtaining the prediction intention of a ship through the intention prediction model according to the historical marine navigation data of the ship; according to the matching relation between intentions and events, the events corresponding to the prediction intentions are recognized, and the events are abnormal marine navigation events; and finally, calculating the similarity between the event and the historical event, and selecting the processing scheme corresponding to the historical event with the highest similarity for recommendation. The method can be widely applied to multiple scenes such as maritime supervision, port management and maritime search and rescue, and greatly improves the shipping safety and management efficiency.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Electronic chart shipping relation network construction and dynamic updating method and system based on graph database
The invention relates to the technical field of maritime navigation and intelligent shipping, in particular to an electronic chart shipping relation network construction and dynamic updating method and system based on a chart database, and the method comprises the steps: obtaining electronic chart static data and shipping dynamic information, and carrying out standardized preprocessing to unify a space reference and an attribute format; defining node types and edge relation types of channel space elements based on the graph database, and constructing a shipping relation network; shipping dynamic information is accessed in real time, and the weight and the attribute of the side relation are dynamically updated to reflect the real-time state of the navigation channel; and receiving a user path planning query request, executing a path planning algorithm fused with the navigation constraint condition based on the updated network, and generating and outputting an optimal route, thereby effectively solving the problems of weak data association, difficult cross-scale fusion and poor dynamic adaptability of a traditional electronic chart, realizing intelligent management and accurate path planning of a channel relationship, and improving the user experience. And the shipping efficiency and safety are improved.
Owner:SHENZHEN COSCO SHIPPING DIGITAL TECHNOLOGY CO LTD
Enteromorpha identification and density estimation method and system based on air-sea cooperation
The invention belongs to the technical field of marine environment monitoring, and particularly relates to an air-sea cooperation-based enteromorpha identification and density estimation method and system, and the method comprises the steps: carrying out the aerial survey of a target sea area through an unmanned plane, collecting a sequence image, processing the sequence image based on a deep learning model, and generating an enteromorpha distribution probability graph and a density estimation graph; carrying out marine navigation and fixed-point sampling through an acoustic sensor carried by an unmanned ship to obtain actually measured density data of enteromorpha; the unmanned aerial vehicle sends the generated enteromorpha distribution probability graph and / or density estimation graph to the unmanned ship, the unmanned ship receives the enteromorpha distribution probability graph and / or density estimation graph, plans a navigation path and sampling points according to the enteromorpha distribution probability graph and / or density estimation graph, and goes to a high-probability or high-uncertainty area for fixed-point sampling; and the unmanned aerial vehicle receives actually measured density data returned by the unmanned ship and fuses the actually measured density data with own identification and estimation results so as to update and optimize the deep learning model and form an air-sea collaborative monitoring closed loop.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)
Flight route planning method and system based on deep learning large-scale extreme wind speed forecast
PendingCN119439318Aaccurate detectionEnsure navigation safetyWeather condition predictionNavigation instrumentsMaritime navigationPrincipal component analysis
The invention discloses a ship route planning method and system based on deep learning large-scale extreme wind speed forecast, and relates to the technical field of artificial intelligence and maritime navigation. An incremental principal component analysis method is introduced, a large-scale sea surface extreme wind speed forecasting model based on depth separable convolution is constructed, and potential physical sudden change disturbance information is decoded and reserved in a variable high-dimensional mapping space by the model through integration of an attention mechanism module and a residual learning algorithm; the attention mechanism module maps high-dimensional feature information in an extreme wind field time sequence to a multi-dimensional feature matrix of a coder-decoder. The method can perform refined dynamic forecasting on the large-scale sea surface extreme wind speed, accurately detect the extreme wind speed sea area and the boundary thereof, forecast and master the intermittent sudden change rule of the sea extreme wind speed in advance, help a ship driver to dynamically adjust the ship route in real time and avoid severe storm weather, and further ensure the navigation safety.
Owner:GUANGDONG OCEAN UNIVERSITY
Traditional Chinese medicine composition for treating insomnia as well as preparation method and application thereof
The invention belongs to the field of traditional Chinese medicines, and relates to a traditional Chinese medicine composition for treating insomnia and a preparation method and application thereof. The traditional Chinese medicine composition for treating insomnia disclosed by the invention is derived from a classic famous prescription combination, and provides an effective prescription for solving the problem of insomnia of marine navigation personnel, so that the health guarantee ability of people such as navy long-voyage and underwater navigation officers and soldiers, marine exploration personnel, fishermen and ocean crew in China is improved.
Owner:BEIJING UNIV OF CHINESE MEDICINE
Ship automatic collision avoidance decision-making system
The invention discloses an automatic ship collision avoidance decision-making system, and relates to the technical field of ships, and the technical scheme is characterized in that the method comprises the steps: collecting environment data of a target ship in a navigation region and target ship dynamic data of the target ship in a navigation process; dividing the navigation area into navigation area blocks according to the risk level and the environmental data, and performing feature extraction on the dynamic data of the target ship to obtain dynamic feature parameters; analyzing and determining the normal variation range of the influence coefficients of the navigation region blocks with different risk levels to obtain a reference interval value; according to the reference interval value, performing statistics on influence coefficients between the current target ship and the surrounding environment and between the current target ship and other ships in the sailing process to obtain a statistical result, and comparing the statistical result with the reference interval value to obtain a collision avoidance risk early warning or continuous analysis instruction; the method has the effects of reducing the occurrence rate of collision accidents and improving the safety and orderliness of marine navigation.
Owner:CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
Overwater platform simulation model design method for full-automatic landing
PendingCN119294111AImprove adaptabilitySustainable transportationDesign optimisation/simulationMaritime navigationSea waves
The invention belongs to the field of simulation model design, and relates to a full-automatic landing-oriented overwater platform simulation model design method, which comprises the following steps: respectively designing a sea wave dip angle simulation model, an atmospheric disturbance model and a plate motion simulation model to establish an overwater platform motion model, so that overwater platform motion simulation under complex sea conditions can be simulated; and a matched water platform motion model is provided for closed-loop high-precision dynamic simulation of the full-automatic landing aircraft ship. When an overwater platform sails on the sea, due to the effects of complex and changeable surges and sea wind, deck movement, deck wind, a stern flow field and the like of the overwater platform are important factors influencing the full-automatic landing guiding safety and success rate. The full-automatic landing technology is high in complexity, complex in closed-loop crosslinking and high in danger level, and it is necessary to provide an overwater platform motion adaptive model under the complex sea condition for aircraft landing simulation.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
Attention-BiLSTM-based ship track prediction method
PendingCN119669797AHigh filling accuracyAchieving Precise ForecastingNavigational calculation instrumentsBiological modelsFeature vectorMaritime navigation
The invention discloses a ship track prediction method based on Attention-BiLSTM, and relates to the technical field of ship track prediction. The method comprises the following steps: acquiring ship AIS data, weather data and date attribute data; carrying out abnormal data detection and elimination on the ship track data, and filling missing data after elimination; establishing a ship track feature input candidate set, selecting a feature input variable influencing the ship track, determining a delay order between the ship track and the feature input variable, and constructing a feature vector; dividing the feature vector into a limited number of sub-model action ranges, and performing boundary division and boundary estimation; and establishing a ship track prediction model for each sub-model action range, and realizing rolling prediction of the ship track through the ship track prediction model. Accurate high-quality data and reasonable action range division are provided for ship track prediction, the ship track prediction precision is guaranteed, and the purposes of ship reasonable path planning, resource optimization scheduling and marine navigation safety improvement are achieved.
Owner:THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
Intelligent monitoring and early warning system based on marine navigation mark
The invention provides an intelligent monitoring and early warning system based on a marine navigation mark, and relates to the technical field of monitoring and early warning, and the system comprises a navigation mark data collection module which is used for obtaining various data according to a preset navigation mark monitoring interval. And the risk assessment module is used for obtaining a position offset risk value according to the influence of the interference factor data on the navigation mark position. And the deviation early warning module is used for setting a position deviation threshold value according to the historical pose data in combination with the external factor data, judging whether the position deviation risk value of each navigation mark exceeds the position deviation threshold value or not, and generating a preliminary early warning signal if the position deviation risk value of each navigation mark exceeds the position deviation threshold value. And the ship influence early warning module is used for calculating a ship navigation influence coefficient according to the navigation data of the surrounding ship sending the preliminary early warning signal navigation mark in combination with the real-time position parameter, and generating early warning information in combination with the position offset risk value. The navigation mark monitoring precision is improved, the early warning timeliness is enhanced, the operation and maintenance cost is reduced, and the method can automatically adapt to different environments and scenes.
Owner:LIANYUNGANG NAVIGATION AIDS OFFICE DONGHAI NAVIGATION SUPPORT CENT MINISTRY OF TRANSPORT
Ship-borne satellite communication blind area self-adaptive optimization system
The self-adaptive dynamic optimization system comprises a plurality of key modules, a signal acquisition and monitoring module receives signals through a multi-band antenna, acquires ship and environment data and then transmits the ship and environment data to an analysis and decision module, and the analysis and decision module judges the condition of a blind area through an intelligent algorithm, formulates a strategy and issues an instruction; the antenna adaptive adjustment unit regulates and controls antenna parameters and detects and corrects when encountering obstacles; the communication link intelligent switching unit ensures stable switching of links; the data dynamic optimization processing module optimizes transmission; the power management and energy-saving module performs intelligent power management; and the man-machine interaction and early warning module realizes information interaction and storage. The problem of a ship-borne communication blind area is solved, the system stability is enhanced, the energy efficiency is improved, and marine navigation, operation and scheduling are guaranteed.
Owner:DITAI (ZHEJIANG) COMM TECH CO LTD
Fishing boat impact force prediction method based on AI
The invention discloses a fishing boat impact force prediction method based on AI, and belongs to the technical field of fishing boat impact, and the method comprises the steps: constructing a multi-boat motion state data set; calculating a relative distance and a relative azimuth angle of each pair of fishing boats according to the multi-boat motion state data set, and extracting a distance change rate and an azimuth angle change rate; if the relative distance of each pair of fishing boats is lower than a preset safety distance threshold value, the collision risk probability of each pair of fishing boats is obtained in combination with the azimuth angle change rate; the collision force is predicted through the collision risk probability; according to the impact force value and the collision risk probability, generating a collision risk level of each boat, and dynamically grouping the fishing boats to obtain an optimized formation structure; and according to the optimized formation structure, the avoidance course adjustment angle and speed variation of each ship are calculated, an emergency avoidance instruction is generated, and the executed multi-ship cooperative motion state is obtained. According to the invention, intelligent collaborative collision avoidance of the fishing boat group is realized, and the safety of marine navigation is obviously improved.
Owner:FISHERY ENG RES INST CHINESE ACAD OF FISHERY SCI
Corrosion-resistant cable bridge for large and medium ships
ActiveCN222395380UElectrical apparatusNon-rotating vibration suppressionMaritime navigationMarine engineering
A corrosion-resistant cable bridge for large and medium-sized ships comprises a bridge structure for placing cables and a fixing structure for fixing and supporting the bridge structure. The fixing structure comprises a mounting plate for fixed mounting, a mounting rack for supporting the bridge structure, and a buffer connecting structure for connecting the mounting plate and the mounting rack; the bridge structure comprises a frame body, a cover body arranged at the upper end of the frame body, and a clamping structure located in the frame body and used for clamping a cable. The clamping structure comprises a plurality of clamping blocks, the clamping blocks are movably connected with the frame body, and a cable is placed between the clamping blocks; the buffer connection structure is used for damping and buffering of the bridge structure. According to the utility model, when a ship sails on the sea, the cable is clamped and buffered, and the cable and the bridge are protected from corrosion.
Owner:JIANGSU DANENG ELECTRIC TECH CO LTD
Satellite positioning continuous compensation method, system and equipment based on multi-source data and medium
The invention relates to the field of marine navigation, and provides a satellite positioning continuous compensation method, system and device based on multi-source data and a medium, and the method comprises the following steps: obtaining navigation data through a navigation device, determining a reference timestamp, selecting a time window according to the reference timestamp, and carrying out data alignment to obtain satellite navigation data, log data, inertial navigation data and compass data; the yaw angle is calculated through satellite navigation data and compass data, the water flow speed is calculated through the satellite navigation data and log data, and continuous compensation is conducted through the water flow speed and the yaw angle; calculating a position offset according to the inertial navigation data, and calculating a longitude variation and a latitude variation through the position offset to obtain high-frequency satellite navigation data; the high-frequency satellite navigation data is used for calculating the position deviation, the track direction deviation and the track speed deviation, the satellite navigation data are verified through the position deviation, the track direction deviation and the track speed deviation, and the satellite navigation data can be supplemented and verified.
Owner:CHINA STATE SHIPBUILDING CORP NO 707 RES INST
Marine area navigation safety control and optimization method
The invention provides an offshore area navigation safety control and optimization method, which comprises the following steps of: 1, acquiring multi-source observation data of an offshore navigation target, and preprocessing the multi-source observation data to obtain a space-time observation association diagram; 2, evaluating the dynamic credibility of each observation node by using a multi-modal consistency graph neural network; constructing an adaptive weighted factor graph model according to the obtained dynamic credibility, and solving a system state to obtain an optimal fusion track, a corrected environmental parameter and a posterior error covariance matrix; 3, constructing a regional risk field based on the optimal fusion track, the corrected environmental parameters and a posterior error covariance matrix; 4, on the basis of the regional risk field, a multi-target collaborative optimization model is constructed and solved, and navigation control parameters are obtained; and 5, executing the navigation control parameters, and performing adjustment and optimization by adopting multi-level closed-loop feedback to complete the navigation safety control and optimization of the offshore area.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Shockproof lamp holder of roll-on-roll-off ship
ActiveCN222297801Ureduce shakingreduce swingWaterborne vesselsLighting support devicesMaritime navigationClassical mechanics
Owner:CSSC GUANGXI SHIPBUILDING & OFFSHORE ENG CO LTD
Maritime communication method based on Beidou short message
PendingCN120343510ANetwork traffic/resource managementParticular environment based servicesData packMaritime navigation
The embodiment of the invention provides a maritime communication method based on a Beidou short message, which is applied to the technical field of communication, and comprises the following steps: S1, collecting maritime navigation original data of a ship in real time, and carrying out space-time alignment and normalization processing on the maritime navigation original data to generate a multi-modal data set; s2, performing data preprocessing on the multi-modal data set, extracting feature vectors of single-modal data, and combining the feature vectors to generate a feature vector data set; s3, performing data fusion on the feature vector data set to generate a fused feature vector data set; s4, encoding, compressing and packaging the fusion feature vector data set to generate a Beidou short message data packet, and sending the Beidou short message data packet to a shore-based monitoring center; and S5, the shore-based monitoring center generates a decision suggestion based on the received Beidou short message data packet. In this way, the technical problem of multi-modal data fusion is solved, the integrity and accuracy of data are improved, and the efficiency of data transmission is improved.
Owner:交信北斗科技有限公司
Stress release flat iron expansion joint
The utility model discloses a stress relief flat iron expansion joint, which relates to the technical field of ship manufacturing and comprises oil retaining flat iron which surrounds a deck and is vertically and fixedly connected to the deck of a ship, a plurality of expansion joints are mounted among the oil retaining flat iron at intervals, and each expansion joint comprises a body connected with the oil retaining flat iron. The arch-shaped bulge is formed by bending outwards from the middle part of the body and has a wide upper part and a narrow lower part; the expansion joints are arranged at the gunwale oil blocking flat iron at certain intervals, stress generated by deformation of the oil tanker under different working conditions when the oil tanker sails on the sea is absorbed, and the oil blocking flat iron is prevented from being broken and damaged.
Owner:QINGDAO BEIHAI SHIPBUILDING HEAVY IND CO LTD
Airline planning system
PendingCN121594868AWeather condition predictionNavigational calculation instrumentsMaritime navigationControl engineering
The invention provides a route planning system capable of improving the operation efficiency of a power generation floating body. A route planning system plans the route of a power generation floating body that generates power while sailing on the sea. This course planning system is provided with a planning means for planning, as a course, a course in which a power generation floating body circulates between a meeting point between a transport ship for recovering power generation energy from the power generation floating body and the power generation floating body and a turning point different from the meeting point. The planning means changes, on the basis of at least one of the weather prediction accuracy and the sea image prediction accuracy, the number of turns in which the power generation floating body travels around the course until the power generation floating body meets the transport ship.
Owner:TOYOTA JIDOSHA KK
Intelligent ship operation mode switching method and device, electronic equipment and storage medium
The invention provides an intelligent ship operation mode switching method and device, electronic equipment and a storage medium, and the method comprises the steps: switching a driving mode to a manual driving mode under the condition that a ship is detected to be in a berthing and unberthing stage; in the berthing and leaving process of the ship, first environment information around the ship is obtained in real time, and under the condition that the first environment information meets the first mode switching condition, the driving mode is switched to the auxiliary driving mode from the manual driving mode; under the condition that the ship is detected to be in the port entering and leaving stage, the driving mode is switched to a remote driving mode; and under the condition that the ship is detected to be in the marine sailing stage, the driving mode is switched to the autonomous sailing mode. Dynamic mode switching of the ship can be carried out according to different navigation environments and conditions, limitation of a traditional single operation mode is avoided, and adaptability and safety of the intelligent ship are improved.
Owner:WUHAN UNIV OF TECH +1
A new type of mobile ship anti-rolling platform
ActiveCN222742889UVessel stability improvementMovement controllersHydraulic cylinderMaritime navigation
The utility model discloses a novel mobile ship anti-rolling platform, including a support platform, wherein two support platforms are provided, and main hydraulic cylinders and auxiliary hydraulic cylinders are symmetrically hingedly installed on the outer walls of the two support platforms on the sides away from each other, and the extension lines of the cylinder bodies of the main hydraulic cylinders and auxiliary hydraulic cylinders are V-shaped, and a main shaft is rotatably installed on the top of the support platform, and an I-shaped frame is fixed on the opposite ends of the two main shafts, and a triangular plate is fixed on the ends of the two main shafts away from each other, and the top ends of the piston rods of the main hydraulic cylinders and auxiliary hydraulic cylinders are hinged to each other at the bottom corners of the triangular plate. The utility model enables a ship to not only maintain relative stability in the horizontal left and right directions when sailing at sea, but also effectively reduce the swaying in the front and rear directions, providing a more stable working environment.
Owner:JIANGSU TURBINE POWER INTELLIGENT TECH CO LTD
Civil track analysis method and system based on hybrid vector retrieval enhancement
ActiveCN119378690AGeographical information databasesInference methodsSemantic vectorMaritime navigation
The invention discloses a civil track analysis method and system based on hybrid vector retrieval enhancement, and the method comprises the steps: obtaining the position information and description information of a plurality of known targets, and constructing a bidirectional vector feature library; position information and description information of a to-be-analyzed target are obtained, and bidirectional quantity query features are constructed; the bidirectional vector query features comprise geographic vector query features and semantic vector query features; performing similarity calculation based on the bidirectional quantity query features and a bidirectional quantity feature library to obtain a final similarity between the to-be-analyzed target and the known target; starting a large model service, and initializing a large model by using a system cue word to obtain a large model question and answer framework; and inputting the final similarity calculation result into the large model question and answer framework to obtain an analysis result output by the large model question and answer framework. The method is suitable for the fields of marine navigation, logistics transportation and the like, and the civil track data can be interactively friendly and accurately analyzed and explained.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Marine diesel engine interactive intelligent agent device based on large and small model collaboration and temporary repair method
The embodiment of the invention provides a marine diesel engine interactive intelligent agent device based on cooperation of large and small models and a temporary first-aid repair method, and aims to solve the problems of rapid diagnosis, emergency decision and first-aid repair guidance when a marine diesel engine breaks down suddenly. The device comprises a large language model serving as a core and responsible for task decomposition, decision generation and information integration; the professional small model carries out optimization analysis on tasks such as fault positioning, emergency decision making, spare part replacement and time prediction; the interactive agent core module supports voice and text input and provides real-time feedback; the multi-modal data real-time fusion module integrates various data sources and dynamically allocates weights; and the knowledge graph and inference engine module provides accurate first-aid repair guidance. The large language model is innovatively taken as a core to be deeply cooperated with a plurality of professional small models, so that the rapid diagnosis, emergency decision and temporary repair guidance of sudden faults of the marine diesel engine in the marine navigation process are realized, and the blank of the intelligent temporary repair technology of the marine diesel engine is filled.
Owner:THE 711TH RES INST OF CHINA STATE SHIPBUILDING CORP
Engine heat exchanger with shockproof structure
InactiveCN222211384UInternal combustion piston enginesHeat exchanger casingsMaritime navigationShock absorber
The engine heat exchanger with the shockproof structure comprises a base, a plurality of installation frames are fixedly installed on the top side of the base respectively, installation plates are installed in the installation frames through damping shock absorption mechanisms, and the same engine heat exchanger body is fixedly installed at the top ends of the installation plates. According to the engine heat exchanger, when the engine heat exchanger body shakes in the sailing process, a plurality of mounting plates on the engine heat exchanger body move in the corresponding mounting frames respectively, the engine heat exchanger body can be mounted on the mounting frames, the engine heat exchanger body can be mounted on the mounting frames, and the engine heat exchanger body can be mounted on the mounting frames. The acting force generated by shaking is relieved and absorbed through cooperation of multiple sets of dampers and first damping springs, meanwhile, multiple sets of hinge mechanisms and elastic damping mechanisms are matched, the double damping effect on the engine heat exchanger body is achieved, and the operation stability of the engine heat exchanger body is guaranteed when a ship sails on the sea.
Owner:SHANGHAI TRI STAR HEAT EXCHANGER
A maritime regional navigation safety management and optimization method
ActiveCN121708783Bstable trackingreliable trackingBiological modelsMarine craft traffic controlMaritime navigationAlgorithm
The present application provides a kind of offshore area navigation safety control and optimization method, comprising: step 1, the multi-source observation data of offshore navigation target is collected, and pre-processing is carried out, to obtain the space-time observation correlation graph;Step 2, the dynamic credibility of each observation node is evaluated using multi-modal consistency graph neural network;According to the obtained dynamic credibility, an adaptive weighted factor graph model is constructed, and the system state is solved to obtain the optimal fusion track, the corrected environmental parameter and the posterior error covariance matrix;Step 3, based on the optimal fusion track, the corrected environmental parameter and the posterior error covariance matrix, a regional risk field is constructed;Step 4, based on the regional risk field, a multi-objective collaborative optimization model is constructed and solved to obtain the navigation control parameter;Step 5, execute navigation control parameter, and adopt multilevel closed loop feedback to optimize, complete offshore area navigation safety control and optimization.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Navigation information display apparatus, method for displaying navigation information, and program
PendingJP2025186506ANavigational aids with satellite radio beacon positioningNavigational route markingMaritime navigationComputer graphics (images)
Owner:FURUNO ELECTRIC CO LTD
An intelligent management method and system for electronic chart encryption and distribution
The application relates to the technical field of maritime navigation and information security, in particular to an intelligent management method and management system for encrypted issuance of electronic charts, which comprises the following steps: when receiving an original electronic chart file, outputting an encrypted file; generating an identifier and a corresponding encrypted storage certificate; when receiving an order request of a client, extracting order core information and verifying identity authority; when the verification is passed, associating the order core information with the encrypted storage certificate and marking the order as a to-be-paid state; when detecting that the order is changed into a payment completion state, generating an electronic license and an unlocking key; when distributing encrypted data packets to the client based on an encrypted transmission channel, outputting a distribution confirmation notification; continuously monitoring the encrypted data packets and the use of the client, executing corresponding security operations based on the monitoring results, and outputting corresponding processing results. The application has the effects of improving work efficiency, ensuring data security, reducing human errors and improving customer experience.
Owner:GUANGZHOU COSCO SHIPPING HAINING TECH CO LTD
A neural network prediction method for optimal working angle of a marine ship photovoltaic panel
ActiveCN117195736BWave fluctuations reducedIncrease output powerDesign optimisation/simulationNeural architecturesMaritime navigationAlgorithm
The application discloses a neural network prediction method for optimal working angle of a marine ship photovoltaic panel. The method considers the influence of sea wave fluctuation and solar position change on the ship photovoltaic power generation system, collects the operation data of the ship photovoltaic panel under different conditions, and establishes a neural network model to learn the output power curve of the ship photovoltaic panel on the basis, and then the trained ship photovoltaic panel power fluctuation neural network model is used to predict the output power of the photovoltaic panel under the current condition. According to the prediction result, the characteristics of the ship photovoltaic panel power fluctuation curve are analyzed to determine the optimal inclination angle of the current ship photovoltaic panel. The application can quickly obtain the optimal inclination angle of the photovoltaic panel to track the sun during the ship sailing process, effectively suppress the power fluctuation of the photovoltaic panel during the ship sailing at sea, reduce the power loss, and improve the output power.
Owner:NANJING UNIV OF POSTS & TELECOMM