35 results about "Ship stability" patented technology

The invention discloses a ship inclination measurement method and system based on Kalman filtering fusion, and relates to the technical field of ship stability measurement, and the method comprises the steps: multi-sensor synchronous data collection, state space modeling and Kalman filtering fusion, adaptive dynamic adjustment of process noise, drift compensation, and fault tolerance and output. When the method and the system provided by the invention are used for measuring inclination, inclination angle error accumulation caused by gyroscope zero offset integral error, accelerometer dynamic interference, sensor noise and temperature drift, GNSS dependency and the like can be effectively avoided, available precision can still be maintained through multi-sensor depth coupling and an intelligent filtering algorithm, and the accuracy of inclination measurement is improved. The method is simple in operation, independent of satellite data, higher in stability, capable of greatly reducing hardware cost compared with GNSS and IMU schemes, and especially has the advantages of being simple in cost and installation configuration in ship refitting; and the method is also suitable for GNSS rejection or cost sensitive scenes such as inland ships, unmanned ships, offshore buoys and the like.

The invention discloses a ship ballast water pressure loading and unloading control system based on a large model. The ship ballast water pressure loading and unloading control system is used for improving intelligence and efficiency of ship ballast water operation. According to the system, firstly, data such as ship navigation states, ballast water tank water levels and ship body postures are collected in real time through a multi-source sensor; analyzing and reasoning the collected data in the trained large neural network model; the large model outputs an optimal control strategy for ballast water loading and unloading, and the decision control module generates a specific execution instruction to drive a valve or a pump or other devices to complete ballast unloading actions. The system is also provided with a man-machine cooperation interface and a feedback mechanism, and the model can be finely adjusted and optimized according to a sailor instruction or real-time feedback information. Compared with a traditional control method, the method has the advantages that ship stability, energy efficiency and environmental protection requirements are fused through a large model, a ballast scheme can be automatically adjusted, rapid and efficient ballast replacement is achieved, and ship navigation safety and economical efficiency are remarkably improved.

The invention relates to the technical field of ship energy efficiency management, and discloses an energy efficiency improvement method and system based on course-speed-trim collaborative optimization, which constructs a course feature code based on navigation environment forecast information and electronic chart information, and combines real-time state information and decision variables of a ship to improve the energy efficiency of the ship. Generating voyage number accumulated energy consumption expectation by using a ship energy consumption prediction model fused by physical information; taking expectation minimization as a target, coupling navigation time constraints, host working condition constraints and ship stability safety boundaries, constructing a three-variable collaborative optimization model of the route path, the planned navigational speed of each route segment and the planned trim value, solving the model, and outputting a collaborative optimization scheme; and on-line parameter adaptive updating is performed on the model based on real-time data during navigation, and dynamic re-planning is triggered. The global voyage number energy consumption optimization is realized through a three-variable collaborative optimization framework and physical information fusion prediction, and the adaptability and robustness of an optimization scheme in a dynamic environment are improved by means of an online learning and rolling optimization mechanism.

The invention discloses a ship stability protection device, and relates to the technical field of ship engineering, the ship stability protection device comprises a ship main body, containing grooves are formed in the two sides of the ship main body, and main stabilization assemblies are arranged in the containing grooves; the main anti-rolling assembly comprises a main anti-rolling fin used for enhancing the stability of the ship body and a main fin driving mechanism used for driving the main anti-rolling fin to unfold or contract, a storage groove is formed in the bottom of the ship body, and an auxiliary anti-rolling assembly is arranged in the storage groove; the auxiliary stabilization assembly comprises an auxiliary stabilization fin used for being matched with the main stabilization fin to improve the stabilization effect and an auxiliary fin driving mechanism used for driving the auxiliary stabilization fin to unfold or contract, by starting the rotation driving component, the rotation driving component drives the rotation block to rotate by 90 degrees around the rotation column, the fixing frame is made to rotate out of the containing groove, and the auxiliary fin driving mechanism drives the auxiliary stabilization fin to unfold or contract. The extension length of the main fin stabilizer is changed by the linear driving part, so that the length-width ratio of the ship main body is changed, and the stabilization effect of the ship main body is improved.

The invention relates to the technical field of ship stability control, discloses a ship stability control method and system, and introduces a real-time monitoring and adaptive adjustment mechanism for electrical parameters of a ballast pump driving motor. By acquiring the electrical parameter reference information of the ballast pump driving motor in the reference pipeline state, a dynamic performance evaluation reference is established. In the ballast water dispatching process, the system synchronously monitors the real-time electrical operation parameters of the ballast pump driving motor and compares the real-time electrical operation parameters with the reference information, and therefore whether the actual conveying efficiency of the ballast water system is lower than the expectation or not can be accurately judged in real time. The real-time judgment mechanism does not exist in the prior art, and the system can find and quantify the performance deviation in time.

The invention discloses a method for determining optimal water surface stability and underwater motion performance of a dual-mode unmanned sailboat. Firstly, based on ship stability specifications, the water surface initial stability height of a sailing ship under different heavy hammer masses is calculated, and the initial stability height range is determined; secondly, ship body recovery torque and wind tilting torque are calculated, static and dynamic heeling angles are determined, and the initial stability high range of the ship body is further narrowed; thirdly, calculating underwater stability, establishing an underwater motion model, and obtaining a hydrodynamic coefficient; then, simulation is carried out based on the underwater motion model, and the limit pitch angle and rising / diving height performance under different parameters are calculated. And finally, constructing a multi-objective optimization model and solving an optimal parameter combination. And selecting an optimal compromise scheme based on an ideal point method, and determining the final weight mass and propeller mounting angle. Unified optimization of the dual-mode performance is achieved, and the design efficiency and the comprehensive performance of the aircraft are remarkably improved.

The present invention relates to a retractable fan-shaped marine anti-rolling device, comprising: a receiving cavity, which is arranged on one side of the bottom of the hull and has an opening, and the receiving cavity includes a first cavity and a second cavity that communicate with each other; a fan-shaped anti-rolling body wing, which is arranged in the second cavity; a motor reduction module, which is arranged in the first cavity, and the output shaft of the motor reduction module is connected to the fan-shaped anti-rolling body wing; an anti-rolling rotation module, which is arranged in the first cavity and is used to connect and drive the whole motor reduction module to rotate, and the fan-shaped anti-rolling body wing rotates following the motor reduction module and leaves the second cavity from the opening. Compared with the prior art, the present invention designs a retractable fan-shaped anti-rolling body wing. When needed, the fan-shaped anti-rolling body wing is released to increase the water pressure stress area, effectively reduce the rolling of the hull, and improve the stability of the ship; when not in use, the fan-shaped anti-rolling body wing is retracted to reduce the water flow resistance, taking into account both the anti-rolling effect and the occupied volume problem.

The invention discloses a water conservancy ship lock anti-collision early warning method and system based on digital twinning, and relates to the technical field of intelligent shipping, the system senses the navigation state and water area topographic features of a ship lock water area in real time through a sensor group and an unmanned ship multi-beam sonar technology, and pre-processes to obtain a dynamic behavior data set and three-dimensional contour information data; a dynamic digital twinborn simulation model is constructed based on fluid mechanics and a finite element technology, a dynamic behavior data set is extracted, a ship dynamic stability index pwd is calculated to carry out ship stability analysis, deposition coupling analysis is executed when a ship is stable, and by calculating a deposition coupling response index cjo, a dynamic twinborn simulation result is obtained. And a comprehensive disturbance yaw index crp is constructed in combination with a ship transverse attitude angle theta for ship disturbance deviation analysis. The system can send an intervention instruction to the control system in real time when the ship is unstable or the yaw risk exceeds a threshold value, so that the traffic safety level and the intelligent management capability of the ship lock are improved.

This invention belongs to the field of cargo stowage technology and provides an AI-based self-learning system for general cargo stowage operations. The system includes: simulating the loading of general cargo using digital twin and AI technologies, outputting several simulated loading schemes; acquiring data on the loading location, unloading sequence, weight, additional unloaded cargo quantity, and cargo hold weight distribution for each scheme; establishing an unloading status analysis model based on the loading location, unloading sequence, and additional unloaded cargo quantity to generate a comprehensive score for unloading rationality; generating a stacking safety risk score based on the loading location and weight; establishing a balance analysis model based on the weight distribution data to generate a balance risk score; and generating the optimal simulated loading scheme by combining the above scores, thereby determining the stowage operation scheme. This invention, through multi-dimensional risk quantification and a self-learning mechanism, achieves intelligent optimization of general cargo stowage schemes, improving unloading efficiency, cargo safety, and ship stability.

The invention relates to the technical field of rotary cylinder sail control, in particular to a ship stability control system based on rotary cylinder sails, which comprises a parameter detection module used for periodically detecting sailing parameters and environmental parameters in the sailing process of a ship and state parameters of a plurality of rotary cylinder sails on the ship; the stability analysis module is connected with the parameter detection model and is used for determining an environment influence index in the ship navigation process based on the environment parameters and the navigation parameters in the target time period, determining a rotary cylinder sail influence index in the ship navigation process based on the state parameters of each rotary cylinder sail, and analyzing the stability of the rotary cylinder sail influence index. The navigation stability of the ship is determined based on the environmental influence index and the rotary cylinder sail influence index; and the control adjustment module is connected with the stability analysis module and is used for adjusting the working state of each rotary cylinder sail based on the sailing stability of the ship. The ship stability determination accuracy can be improved, the ship stability control precision is improved, and the ship navigation safety is ensured.

The embodiment of the invention provides a method and device for determining the vehicle parking position of a roll-on-roll-off ship, and the method comprises the steps: screening out a candidate position set allowing the vehicle to be parked from a target roll-on-roll-off ship according to a preset public constraint condition and a loading direction constraint condition; aiming at each candidate position in the candidate position set, simulating that a current to-be-distributed vehicle in a queuing sequence of to-be-ferried vehicles is parked at the candidate position, and according to the current ship loading state, through the first interpolation function, the second interpolation function and the third interpolation function, calculating the ship stability height after simulation loading; and selecting the position enabling the estimated total load capacity of the target roll-on-roll-off ship to be maximum as the final parking position of the current to-be-distributed vehicle from the candidate positions with the stability height within a preset safety threshold range obtained through calculation. On the premise of guaranteeing the stability and safety of the ship, the loading efficiency and economic benefits can be maximized, and an executable parking scheme is output.

The invention discloses a method for calculating rolling and self-rolling periods of a ship. The method comprises the steps that inherent parameters of a ship are obtained, and the inherent parameters at least comprise the maximum width B of a hull plate of the ship, the type draft d under the calculated loading condition, the maximum heeling angle theta m, the height zg from the gravity center of the ship to a base line and the radius R of rotational inertia of the ship under the calculated loading condition; the inherent parameters are substituted into a rolling and self-shaking period calculation formula, and the rolling and self-shaking period T of the ship under the maximum heeling angle theta m within the range smaller than the water inlet angle is obtained through calculation. According to the ship stability monitoring method, the ship rolling and self-rocking period can be expressed according to related indexes of the width, the draught depth, the gravity center position and the maximum heeling angle of the ship body, the corrected and optimized rolling period formula and the relation between the rolling period formula and the stability are obtained, and a scientific basis and an accurate calculation method are provided for ship stability monitoring.

The invention relates to a vessel (1) with propulsion means (8, 9), motorized, with a fusiform hull (2) and an improved stability curve and comprising at least one keel (3a, 3b) and at least one bulb (4), the vessel (1) being wave-piercing and configured to navigate at speeds corresponding to a Froude number greater than 0.45 without being of the "planing" type, in which the hull (2) has particular dimensions. The vessel (1) has a stability curve such that the righting lever arm GZ reaches a maximum (GZMax ) for a ship's heel angle greater than 90° and is less than 0.1 meter (GZ10) when the ship's heel angle is 10 degrees. Figure for abstract: Fig. 4

The present invention relates to the technical field of data processing, and discloses a ship data sampling method, which includes obtaining a ship data parent sample for predicting ship stability. The ship data parent sample includes several parent sample feature components. Independent data augmentation is performed on each parent sample feature component to obtain a sub-sample of the ship data parent sample and update the ship data parent sample. After repeating the execution for a preset number of iterations, a final sample is obtained. By independently updating each parent sample feature component of the ship data parent sample, compared with the overall sample update, the present invention can not only increase sample diversity, but also effectively address the problem of decreased sampling accuracy caused by large differences in the sampling ranges of different components of ship data. The obtained final sample effectively amplifies the reliable ship data volume for ship stability prediction, thereby improving the accuracy of ship stability prediction.

The application discloses a polar ship icing condition limit stability evaluation method and system, and the method comprises the following steps: obtaining ship data and environmental parameters, inputting a dynamic icing calculation model, and calculating the ship icing distribution; obtaining the ship stability righting lever curve according to the real-time motion state of the ship and the ship icing distribution, processing the ship stability righting lever curve, and obtaining the dynamic stability curve; calculating the limit dynamic inclination and the maximum dynamic inclination lever under different icing conditions based on the dynamic stability curve, and solving the limit wind speed and the wind scale that can be borne by the ship under different icing conditions according to the calculation results, and comprehensively evaluating and judging the limit stability of the polar ship. The application realizes the dynamic update of the icing distribution with the change of the ship motion state by obtaining the state change parameters corresponding to the ship at each time step based on the six-degree-of-freedom motion equation of the ship, and the total amount of flying spray is calculated by combining the sea wave spray and the wind-generated flying spray, so that the ship stability analysis combines the icing and the wind wave, and the accuracy and the reliability of the stability evaluation are improved.

The invention discloses a ship weight and gravity center actual position measuring method, which is characterized by comprising the following steps in sequence: A, preparation work, B, data acquisition and C. According to the method, detection is carried out by directly utilizing the inclination change of a ship body in the process of filling fuel oil or ballast water into an empty ship, additional operation procedures are not needed, and the cost is reduced. According to the method, the gravity center coordinates of the ship are accurately measured by utilizing a moment balance principle and an inclination angle formula, ship floating states in two or more states (including an empty ship state) are accurately measured, an equation set is established, and the weight and the gravity center three-dimensional coordinates of the empty ship are used as unknown quantities to be solved. And carrying out average calculation on the final result to finally obtain four important ship stability basic parameters of the high-precision empty ship weight W and the ship barycentric coordinates XG, YG and ZG.

The utility model relates to an air bag type sealing and closing device for an unprotected opening of a freeboard deck passing through a penetrating object, the upper part of the unprotected opening of the deck is connected with a first annular plate through a split bolt and a sealing gasket, the upper part of the first annular plate is fixedly connected with a vertical cylinder body, and the inner side of the cylinder body is fixedly connected with a second annular plate; an annular rubber air bag is arranged between the first annular plate and the second annular plate, an inflation opening communicated with the annular rubber air bag is formed in the side wall of the barrel, the annular rubber air bag expands towards the middle after being inflated to block an unprotected opening of a deck, and meanwhile a penetrating object penetrates through the unprotected opening all the time and does not need to be moved away. According to the utility model, the deck opening with the penetrating object is no longer used as an unprotected opening, so that the requirements of ship stability and load line convention are met; a clamp is not needed, and the problem that the clamp is inconvenient to disassemble and assemble is solved; through remote control and on-site operation, the air bag can reach different pressures to meet the requirements of different tightness.

The present application relates to a semi-submerged propeller propulsion device with differentiated vibration damping, comprising a propulsion mechanism, an adjustment mechanism, and a shock-absorbing mechanism; the propulsion mechanism is used to provide power, and one end of the propulsion mechanism can be connected to the stern plate; one side of the adjustment mechanism is used to connect to the propulsion mechanism, and the other side is used to connect to the stern plate, and the adjustment mechanism is used to drive the propulsion mechanism to swing to adjust the positional relationship of the propulsion mechanism relative to the stern plate; the shock-absorbing mechanism includes a first shock-absorbing component connected between the propulsion mechanism and the stern plate and a second shock-absorbing component connected between the adjustment mechanism and the stern plate, and the shock-absorbing coefficients of the first shock-absorbing component and the second shock-absorbing component are different from each other. The device can specifically eliminate the oscillations transmitted to the ship from the various components of the semi-submerged propulsion device with differentiated vibration damping, improve the stability of the ship, and reduce safety hazards.

The present application relates to the technical field of ship energy efficiency management, and discloses an energy efficiency improvement method and system based on route-speed-drag force collaborative optimization, which constructs route feature coding based on sailing environment prediction information and electronic chart information, combines with real-time state information and decision variables of the ship, and generates voyage cumulative energy consumption expectation by using a ship energy consumption prediction model of physical information fusion; taking the minimization of the expectation as the goal, coupling sailing time constraints, main engine working condition constraints and ship stability safety boundaries, a three-variable collaborative optimization model of route path, planned speed of each voyage section and planned drag force value is constructed and solved, and a collaborative optimization scheme is output; in the sailing, the model is updated online based on real-time data and dynamic re-planning is triggered. Through the three-variable collaborative optimization framework and physical information fusion prediction, global voyage energy consumption optimization is realized, and with the help of online learning and rolling optimization mechanism, the adaptability and robustness of the optimization scheme in the dynamic environment are improved.

The invention belongs to the technical field of channel improvement building damage event prediction methods, and particularly relates to a channel improvement building damage off-site law enforcement method based on multi-source spatio-temporal data. The multi-source spatio-temporal data comprises ship AIS data, ship report data, historical ship report data, a channel improvement building data set, real-time tide level data, ship stability characteristic data, ship radar scanning data, video monitoring and intelligent identification data and meteorological real-time data; building collision risk scenes are improved according to three types of channels including unintentional collision, hydrological influence and illegal navigation, and corresponding off-site law enforcement algorithms are executed respectively; and sequentially operating a first arrival crew identification algorithm, a high-risk water area identification algorithm in the tidal fluctuation and ebb period and a trajectory-based off-site law enforcement algorithm to realize collision risk judgment.

The invention relates to the technical field of ship stowage, in particular to a new general cargo ship stowage assisting system which comprises a ship cargo system used for storing and managing stowage information, identifying and classifying cargos into common general cargos and packaging dangerous cargos according to cargo professional names, uploading the common general cargos to cargo boarding and isolation judgment, and sending the cargo boarding and isolation judgment information to the ship cargo system; verifying according to the isolation requirements of the mutually-abutted grocery, associating the packaging dangerous goods with the standard related information, judging the isolation level, and if the requirement is not met, prompting that the loading is not allowed; the stowage operation system is used for receiving voyage number plan information input by a user, generating a stowage scheme and performing compliance verification; the accounting and result output system is used for carrying out data accounting on the stowage scheme and outputting an accounting result and a visual stowage graph, and an accounting module can dynamically calculate the gravity center of irregular cargoes and calculate a general stowage stability algorithm of the cross-tonnage general cargo ship based on ship stability reference parameters and cargo hold space characteristic parameters. According to the invention, scientificity, operability and safety of stowage work are improved.

This invention provides a method, apparatus, equipment, and storage medium for controlling loads on a crane vessel. It acquires real-time environmental parameters, load parameters, and crane vessel operational parameters via sensors. These parameters are input into a parameter generation model to obtain initial control parameters. The initial control parameters are then optimized using a fitness function to obtain target control parameters. Based on these target control parameters, the crane vessel is controlled to move the load to the target position. This invention effectively reduces positional errors during load operation and significantly improves the accuracy of load control by real-time acquisition of environmental parameters, load parameters, and crane vessel operational parameters, and by introducing a parameter generation model and a fitness function to optimize the control parameters. Furthermore, by evaluating the control parameters using a fitness function and incorporating vessel stability, load operation accuracy, and task completion into the optimization objectives, it effectively improves load movement efficiency, shortens operation time, and enhances operation quality.

The invention relates to the related technical field of atomic gravity measurement, and provides a steady-state recognition method based on multi-element and multi-dimensional characteristics of a cold atom absolute gravimeter, and the method comprises the steps: S1, collecting the historical data of the operation of a ship body based on the cold atom absolute gravimeter at each steady-state level, the historical data comprising the acceleration and inclination angle of the ship body, and the acceleration and inclination angle of the ship body; the atomic number data of the cold atom absolute gravimeter are obtained; s2, dividing the acceleration, the inclination angle and the atomic number data into feature groups to form a multi-element multi-dimensional ship body steady-state feature matrix; s3, based on the ship body steady-state characteristic matrix and a machine learning algorithm, establishing a ship body steady-state identification model, and performing cross validation on the ship body steady-state identification model; and S4, according to the ship body steady state identification model after cross validation, identifying the ship body steady state based on the currently acquired acceleration, inclination angle and atomic number data of the ship body. According to the multi-element multi-dimensional information of the shipborne cold atom absolute gravimeter, the ship stability identification precision is further improved.

This invention discloses a fishery aquaculture vessel with a double-ring modular aquaculture tank and its implementation method. By designing a double-ring aquaculture tank composed of concentric cylinders in the aquaculture vessel, where the inner cylinder and outer ring space are used as independent aquaculture tanks, the stability and uniformity of water flow are effectively improved, reducing water flow turbulence and energy waste. The double-ring design can significantly reduce the impact of free surface effects on ship stability and the aquaculture environment. The conical boundary design helps reduce water ripples and promotes the concentrated sedimentation of aquaculture waste to the collection trap in the center of the tank bottom, facilitating waste discharge and cleaning. In addition, the smooth surface design reduces marine organism attachment and lowers the difficulty of removal. The modular design of the double-ring aquaculture tank can be carried out in parallel with ship construction, which can significantly shorten the shipbuilding cycle and reduce construction costs.

This invention discloses a collision avoidance and early warning method and system for hydraulic ship locks based on digital twins, belonging to the field of intelligent shipping technology. The system uses a sensor array and unmanned surface vessel (USV) multibeam sonar technology to perceive the navigation status and topographic features of the lock area in real time. It preprocesses and acquires dynamic behavior data sets and three-dimensional contour information data. Based on fluid mechanics and finite element technology, it constructs a dynamic digital twin simulation model, extracts the dynamic behavior data sets, calculates the ship dynamic stability index (PWD) for ship stability analysis, and performs deposition coupling analysis when the ship is stable. It calculates the deposition coupling response index (CJO) and, combined with the ship's lateral attitude angle (θ), constructs a comprehensive disturbance yaw index (CRP) for ship disturbance deviation analysis. The system can issue intervention commands to the control system in real time when the ship's instability or yaw risk exceeds a threshold, improving the safety level and intelligent management capabilities of the lock passage.

The present application relates to the technical field of wave compensation, and particularly relates to a marine wave compensation method and system for ship stability, which comprises the following steps: collecting all-around marine wave monitoring parameters, and performing multi-time window period division processing and wave energy density quantification analysis to generate wave energy density of each time window; performing nonlinear dynamics behavior mining and dynamic sea wave digital perception modeling according to the wave energy density of each time window to construct a sea wave field dynamics model; performing multi-scale wave feature analysis based on the sea wave field dynamics model, and performing wave trend evolution prediction to construct a wave trend prediction map; and identifying current ship state parameters. The present application realizes automatic adjustment of the center of gravity position according to real-time monitoring data, and realizes adaptive stability optimization of the ship attitude under different wave conditions.

The application relates to the technical field of electrically conductive connection of a socket box, in particular to an embedded automatic lifting charging socket box, which comprises a bridge deck, a placing groove arranged in the bridge deck and a charging socket box body arranged in the placing groove, one side of the charging socket box body is fixedly provided with a socket terminal box, and a plug-in terminal hole is arranged in the socket terminal box. The embedded storage design solves the problems that the existing charging socket box is arranged in an exposed mode, occupies deck space and lifts the gravity center of equipment, thereby affecting the stability of a ship. The stroke control of a scissor type elevator can adjust the lifting height of the charging socket box body, the charging terminal and the shore-based charging gun can be coaxially matched, the height difference of the ship body under different loads in the whole tidal cycle can be adaptively matched, the closure and locking of the terminal cover plate are completed in advance during the descent and recovery of the box, manual operation is not needed in the whole process, and human errors of forgetting to close the end cover are fundamentally eliminated.

The invention provides a ship oil tank oil mass dynamic measurement method based on optical fiber compass attitude compensation, which comprises the following steps of: installing an optical fiber compass on a ship for acquiring acceleration, angular velocity and inclination angle data of the ship in real time; meanwhile, a temperature sensor and a pressure sensor are installed in the oil tank and used for collecting temperature and pressure data of fuel oil in the oil tank; obtaining an oil mass-stability parameter relation model: in a ship design stage, establishing a relation model between the oil mass of the ship oil tank and the ship stability parameter in a mode of combining theoretical calculation and experimental test; when the real-time oil mass of the oil tank is obtained, the ship stability parameters obtained in real time are substituted into the obtained oil mass-stability parameter relation model, and the real-time oil mass of the ship oil tank is obtained through calculation; according to the collected real-time temperature and pressure data of the fuel oil in the oil tank, temperature and pressure compensation correction is conducted on the real-time oil mass obtained through calculation; the system can accurately measure the oil quantity of the oil tank of the ship in real time.

The invention discloses a ship ballast water pumping link flow optimization control system based on data analysis, and particularly relates to the technical field of ship automation and intelligent control. Comprising a multi-source data acquisition module, a data preprocessing and fusion analysis module, a working condition intelligent identification and flow demand prediction module, a multi-target flow optimization decision module, a collaborative execution and closed loop feedback correction module and an abnormal working condition early warning and emergency regulation module. According to the method, multi-dimensional real-time data are fused, a machine learning algorithm is utilized to intelligently identify working conditions and predict flow demands, a multi-objective optimization model taking ship stability as a core is constructed for decision making, and execution accuracy and safety are ensured through closed-loop feedback and an emergency mechanism. According to the invention, the problems of one-sided regulation and control basis, response lag, single target and poor adaptive ability are solved, high-precision, high-safety and multi-target collaborative optimization under complex sea conditions is realized, and the intelligent level and comprehensive benefits of ships are improved.