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公开(公告)号：US12071207B2
公开(公告)日：2024-08-27
申请号：US17286905
申请日：2019-10-14
发明人： Sverre Dokken , Kris Lemmens , Jorgen Grindevoll , Alexis Michael , Hans Lennart Cederberg , Wengang Mao , Helong Wang , Waqas Ahmed Qazi
摘要： An apparatus for determining an optimal route of a maritime ship includes a database configured to store a service speed of the maritime ship. The apparatus further includes a processor configured to generate a plurality of state nodes, to determine a plurality of time sets, to append the plurality of time sets to the plurality of state nodes to obtain a plurality of appended state nodes, to generate a plurality of edges based on the plurality of appended state nodes, to generate a graph based on the plurality of appended state nodes and the plurality of edges, to apply a preliminarily generated optimal route algorithm on the graph to obtain a preliminarily defined route path, and to apply a genetic algorithm based on the preliminarily defined route path to obtain the optimal route of the maritime ship.
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公开(公告)号：US11987340B2
公开(公告)日：2024-05-21
申请号：US17348870
申请日：2021-06-16
发明人： Ritsu Kadota , Tomoyoshi Koyanagi , Shuichi Moromi , Sadao Miyano
IPC分类号： B63H25/04 , B63B79/15 , B63B79/20 , B63B79/40 , G05D1/00 , G05D1/243 , G05D1/606 , G06N20/00
CPC分类号： B63H25/04 , B63B79/15 , B63B79/20 , B63B79/40 , G05D1/0206 , G05D1/243 , G05D1/2435 , G05D1/606 , G06N20/00
摘要： A hull behavior control system for controlling behavior of a hull of a marine vessel includes a memory and at least one controller coupled to the memory. The at least one controller is configured or programmed to control a steering that changes the traveling direction of the marine vessel, obtain a water surface shape around the marine vessel, estimate movement of a wave based on the water surface shape, and when it is determined that the hull rides the wave whose movement has been estimated, control the steering so as to reduce an influence of the wave on the hull.
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3.发明授权公开(公告)号：US11887485B2
公开(公告)日：2024-01-30
申请号：US17467916
申请日：2021-09-07
发明人： Huayan Pu , Yuan Liu , Jun Luo , Zhijiang Xie , Jiajia Xie , Xiaomao Li , Zhou Su , Yan Peng , Hengyu Li , Shaorong Xie
CPC分类号： G08G3/00 , B63B49/00 , B63B79/15 , B63B79/20 , B63B79/40 , G05B13/0265 , G05D1/0206
摘要： A control method and system for collaborative interception by multiple unmanned surface vessels are provided. The method includes obtaining task environment information of each unmanned surface vessel in an unmanned surface vessel group at a current moment, estimating interception point information of the intruding target at the current moment by using a Kalman filter according to the task environment information of the unmanned surface vessels at the current moment, determining process state information of each unmanned surface vessel at the current moment, inputting the process state information of each unmanned surface vessel at the current moment into a corresponding intruding target interception policy output model respectively to obtain an execution action of each unmanned surface vessel at a next moment to intercept the intruding target. The application can intercept the intruding target accurately.
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公开(公告)号：US11945560B2
公开(公告)日：2024-04-02
申请号：US17850870
申请日：2022-06-27
申请人： FUJITSU LIMITED
发明人： Isamu Watanabe , Shinji Ito , Hiraku Fujimoto , Ryusei Ikeda , Kenta Usui
摘要： A non-transitory computer-readable storage medium storing a navigation monitoring program that causes at least one computer to execute a process, the process includes acquiring direction information that indicates a direction of a vessel and position information that indicates a position of the vessel; and predicting whether or not the vessel navigates along a course by inputting the acquired direction information and the acquired position information to a prediction model generated by machine learning by using direction information and position information for each of a plurality of vessels that has navigated in the past and a correct answer label that indicates whether or not each of the plurality of vessels navigates along a course.
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公开(公告)号：US11897589B1
公开(公告)日：2024-02-13
申请号：US18455951
申请日：2023-08-25
摘要： A system and method that reduces wave-making resistance of at least one follower vessel following at least one lead vessel operating in a seaway based on a determination of time-dependent variations in the Kelvin wake waves being generated by the lead vessel when operating in a seaway. By using a time-dependent Kelvin wake wave generation approach, the determination of where to position the follower vessel in a reduced wave-making resistance region may be improved, such as when the lead vessel changes direction and/or speed in the seaway. Such an approach may position the follower vessel based on information associated with the Kelvin wake wave generated by the lead vessel in the past, which the follower vessel approaches this past-generated Kelvin wake wave and is positioned in the reduced wave-making resistance region associated with this past-generated Kelvin wake wave.
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公开(公告)号：US20230406464A1
公开(公告)日：2023-12-21
申请号：US18202105
申请日：2023-05-25
发明人： Susan Molloy , Aaron MacNeill , Dom Molloy , Christopher Whidden
摘要： A method of estimating an operational parameter of a subject vessel, including receiving at least one vessel data item of a set of vessel data from a subject vessel; associating the vessel data with a class; generating an estimated equivalent for at least one vessel data item using a machine learning model trained using a database of data from vessels of the class of the subject vessel; and providing the estimated equivalent to a user. The vessel data item may be acquired by a dedicated data acquisition unit on a marine vessel. The data acquisition unit may be part of a system for analysing marine data. In another aspect, a method of detecting an abnormality is provided, including receiving hydrophone data from a subject vessel; detecting an abnormality in the hydrophone data; associating the abnormality with an operational system of the subject vessel; and generating a maintenance alert identifying the operational system for further attention.
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公开(公告)号：US20230324181A1
公开(公告)日：2023-10-12
申请号：US18023936
申请日：2021-08-20
申请人： HITACHI, LTD.
发明人： Yoshihito KINOSHITA , Kota IMAI , Tatsuya MAEDA
CPC分类号： G01C21/203 , B63B79/40 , B63B79/20 , G06Q50/06 , B63B79/30 , G06Q10/06315 , B63B49/00
摘要： This power generation planning device, which carries out plan creation or plan adjustment for a power generation plan for a generator and a ship allocation plan for a transport ship for power generation fuel for the generator, is provided with: an adjustment range calculation unit that calculates an adjustable range and adjustment cost for generator management based on a power generation plan, and an adjustable range and adjustment cost for fuel management based on a ship allocation plan; and an imbalance countermeasure amount calculation unit that, under a constraint condition pertaining to the power generation plan and the ship allocation plan, creates a plan or calculates an adjustment amount for generator management and fuel management that optimizes a prescribed indicator within the adjustable ranges of the generator management and the fuel management.
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8.发明公开公开(公告)号：US20230297111A1
公开(公告)日：2023-09-21
申请号：US18313641
申请日：2023-05-08
发明人： Guoyan YU , Qiheng ZHU
CPC分类号： G05D1/0206 , B63B79/20 , B63B79/30 , B63H21/21 , G01L5/133
摘要： Disclosed are a method, a device, equipment and a medium for dynamic positioning of a semi-submersible offshore platform. The method includes: acquiring a real-time position of the platform; if the real-time position is different from a preset position, detecting an external force torque by a first torque detector; calculating a first target thrust produced by each of propellers, controlling the propellers to produce forces according to a first target thrust torque, and detecting an actual thrust torque; obtaining a fault condition of each of the propellers if the actual thrust torque is different from the first target thrust torque, indicating that the propellers have faults; recalculating a thrust of each of the propellers, a second target thrust torque, according to the fault condition, the external force torque and the preset formula set; and controlling each of the propellers to generate the thrust according to a corresponding second target thrust torque.
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公开(公告)号：US11945559B2
公开(公告)日：2024-04-02
申请号：US17366431
申请日：2021-07-02
发明人： Diju Gao , Yao Jiang , Wanneng Yu
摘要： The disclosed is a method for forecasting a demand load during navigation of a ship based on working condition classification. The method of the disclosure comprises: training historical data values by employing a least squares support vector machine to obtain a classification plane, classifying working conditions during the navigation into a fast-changing working condition and a stable working condition, and determining in real time a working condition type of the ship in an online stage. A method for forecasting a demand load by means of a Markov chain is employed for the stable working condition, and a method for forecasting a demand load by means of a radial basis function neural network optimized by a genetic algorithm is employed for the fast-changing working condition. A desirable forecasting effect can be achieved by selecting forecast models suitable for either type of working condition.
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公开(公告)号：US20240043105A1
公开(公告)日：2024-02-08
申请号：US18453212
申请日：2023-08-21
发明人： Jan Mikalsen , Kjell Erik Larsen
CPC分类号： B63B79/40 , G01C21/203 , B63B79/20 , B63B2213/00 , G01C21/005
摘要： A marine vessel advisory system may be configured to calculate and provide operational information that show fuel consumption savings based on adjustment of vessel speed and/or heading. In an embodiment, the advisory system may operate real-time to collect operational and/or environmental conditions information to be used to calculate alternative operational performance of the marine vessel that will save fuel and reduce emissions. The calculations may include a simulation, machine learning, and/or artificial intelligence to determine a speed and/or heading of the marine vessel that will reduce fuel consumption. The advisory system may display the computed information for the operator, and the operator may elect to switch to the alternative operating parameters (e.g., slower speed). In an embodiment, the advisory system may interact directly with a marine vessel system and automatically cause the marine vessel system to adjust operating parameters based on computed operating parameters that saves fuel and reduces emissions.
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