84 results about "Ship load" patented technology

The invention provides a ship shaft power generation and lithium battery coordinated multi-working-condition energy optimization management system, which is applied to the technical field of ship power systems and energy management and comprises a data acquisition module, an energy optimization processing module and a power regulation and control module, wherein the energy optimization processing module is provided with a prediction unit, a working condition identification unit, a loss evaluation unit and a decision-making unit, the prediction unit is used for predicting a ship load demand in a preset period, the working condition identification unit is used for identifying a ship operation working condition, and the loss evaluation unit is used for determining a life loss factor by combining a prediction result and an energy storage unit state; the decision-making unit generates a regulation and control instruction based on the life loss factor and the state of the power generation unit to realize power distribution of the power generation unit and the energy storage unit; according to the system, multi-working-condition energy consumption requirements of the ship are met, meanwhile, comprehensive optimization of fuel consumption cost and energy storage unit service life loss cost is achieved, the energy utilization rate is increased, the service life of the energy storage unit is prolonged, and the full-life-cycle operation cost of the ship is reduced.

The invention discloses a ship loading and unloading hose curvature intelligent monitoring system, which relates to the field of intelligent monitoring and comprises a panoramic view acquisition module, a panoramic image fusion module, a simulation driving analysis module, a multi-state parallel architecture module and a hose early warning analysis module. The panoramic view acquisition module is used for acquiring visual acquisition information; the panoramic image fusion module is used for performing multi-dimensional non-overlapping splicing fusion processing on the visual collection information to obtain three-dimensional hose visual information; the simulation driving analysis module performs simulation driving processing on the ship loading and unloading process according to the three-dimensional hose visual information to obtain a corresponding fault parameter data set; the multi-state parallel architecture module is used for setting a corresponding target node for the three-dimensional hose visual information and carrying out space-time fusion processing on state data in the target node to obtain corresponding state information; the hose early warning analysis module is used for performing verification early warning analysis on the state information corresponding to each target node; therefore, the monitoring accuracy in the use process of the hose is improved.

The invention provides a method for predicting a cabin material pile in a ship loading process of a ship loader based on a diffusion network, and relates to the technical field of bulk cargo loading and unloading automation. Three-dimensional point cloud data in a cabin in the ship loading process is acquired, the aligned three-dimensional point cloud data is projected to a two-dimensional plane parallel to the bottom of the cabin, and a material pile depth map is generated; constructing a training sample pair based on the historical ship loading operation data, and training a conditional diffusion network model to obtain a target conditional diffusion network model; inputting the material pile depth map of the first time period and planned blanking point information corresponding to the second time period into a target condition diffusion network model to obtain a material pile depth map corresponding to the second time period; and taking the material pile depth map corresponding to the second time period as an initial depth map for prediction in the next time period to carry out iterative prediction, and outputting a material pile depth prediction set after the material pile depth map prediction in all time periods in the ship loading process is completed. According to the invention, the fidelity and authenticity of the predicted material form can be improved.

The invention discloses an automatic shipping operation scheduling method for a container wharf, and the method is realized through the following steps: determining a current workable candidate container list based on a preset on-board position dependence relation and a storage yard real-time state through feasibility screening; performing execution cost evaluation and opportunity utility evaluation on the candidate jobs respectively, quantifying the costs of equipment movement, overturning and ramming operation and the like by the execution cost evaluation, and actively and quantitatively unlocking the key jobs by the opportunity utility evaluation, thereby forming earnings brought by double-box collaboration or matching of wharf resources; and calculating a final decision score through a weighting algorithm fusing utility and cost, and selecting an optimal job generation instruction according to the final decision score. According to the method, a complex scheduling problem is decomposed into a plurality of evaluation levels, refined and intelligent management of ship loading operation decisions is realized, and the overall efficiency, balance and economical efficiency of automatic wharf ship loading operation can be effectively improved.

The invention discloses a ship water gauge scale line fitting algorithm, and relates to the technical field of ship water gauge scale calculation, and the method comprises the steps: obtaining a ship water gauge region image through an image collection device to extract a measurement point coordinate, and building a mapping relation between a pixel position and a physical draft; a weighted least square method is adopted to perform nonlinear curve fitting, a weight coefficient is calculated based on a local neighborhood standard deviation, a polynomial order p is dynamically adjusted according to an adjusted decision coefficient, and the decision coefficient is iteratively optimized to improve the balance between amplitude and model complexity. And the system repeatedly corrects model parameters through a dynamic verification mechanism of the residual sum of squares and a preset threshold value, and finally an accurate water gauge scale fitting curve is generated. The method effectively solves the problems that traditional manual observation is prone to environmental interference and large in measurement error, high robustness is kept in a complex water area environment, and reliable data support can be provided for the fields of ship load evaluation, channel safety management and the like.

According to the SARIMA prediction-based inland river navigation draught optimization management and control method for the ship with the overrun draught, a multi-source time sequence data set is obtained and preprocessed to obtain an input time sequence set, and the input time sequence set is processed through a constructed SARIMA model to obtain a water level prediction sequence; a ship dynamic draught prediction sequence is obtained through the constructed ship dynamic draught model based on water level prediction sequence processing, a draught safety margin judgment operator is constructed to carry out draught safety margin evaluation and risk grading, and finally a draught optimization management strategy is solved through the draught optimization management model and issued. A ship draught control closed-loop chain of prediction-calculation-evaluation-optimization-feedback is formed, through deep coupling of SARIMA time sequence prediction, ship dynamic draught calculation and draught optimization management, prospective recognition and dynamic regulation and control of draught safety margin of a draught overrun ship are achieved, and under the premise of guaranteeing navigation safety, the ship draught safety margin is effectively controlled. And the water depth utilization efficiency of the inland waterway and the ship loading efficiency are greatly improved.

The invention discloses a ship loading and unloading monitoring method and system based on point cloud data analysis, and relates to the technical field of point cloud data analysis, and the method comprises the steps: carrying out the point cloud data collection for ship loading and unloading, carrying out the normalization operation of a whole point cloud, constructing a point cloud deep learning model, screening a hatch point cloud subset, and calculating the number of neighborhood points of the point cloud, and density constraint is carried out on the point cloud, an outer envelope boundary rectangle based on the point cloud is used as spatial distribution region limitation, and region division is carried out based on point cloud coordinates according to the spatial distribution of the cabin. According to the method, through combination of a density constraint screening method after normalization, effective points which are relatively uniformly distributed are reserved while low-density noise points in point clouds are removed, isolated points and sparse region points which deviate from a physical structure of a hatch are eliminated through density constraint, and through a closed-loop adjustment mechanism of orthogonal verification after normal vector normalization, a high-density noise point in the point clouds is eliminated. And a pseudo-orthogonal phenomenon caused by a calculation error or an environmental influence is avoided.

The invention relates to a ship loader operation control optimization method, device and equipment and a medium, and relates to the field of ship loading control, and the method comprises the steps: determining a cabin three-dimensional center coordinate corresponding to a target cabin according to laser radar point cloud data corresponding to the target cabin; when it is detected that the front-back inclination angle or the left-right inclination angle is larger than a preset angle threshold value or the vertical distance is smaller than a preset safety distance, a preset blanking point correction model is adopted to update the first blanking datum point according to the front-back inclination angle, the left-right inclination angle and the static offset correction amount of the first blanking datum point so as to determine a second blanking datum point; a cart walking mechanism in the ship loader is driven to horizontally move along the wharf ground and / or the rotation angle of a cantilever in the ship loader is adjusted till a chute tube in the ship loader is aligned with the second blanking datum point, and the target bulk cargo continues to be loaded to the target ship; and the steps are repeated until loading of the target ship is completed. According to the ship loading device, stable and efficient ship loading operation can be kept under the complex operation working conditions.

The invention discloses a port shipment mixing plan and storage yard operation line control method, and belongs to the technical field of port operation plan and equipment cooperative control. The method comprises the following steps: firstly, collecting port storage yard layout, shipping operation task information in a planning period and storage yard equipment parameter information, providing complete basic data for constructing a coupling space-time network model, and realizing high-precision collaborative scheduling of storage yard equipment; and secondly, constructing a coupling space-time network model considering the shipping operation tasks and the mixing constraint, and uniformly associating the spatial position, the operation time sequence, the mixing constraint and the equipment usability of each shipping operation task in the storage yard, so as to realize collaborative optimization of operation, mixing and conveying. And finally, carrying out unified optimization solution on the operation time sequence of the ship loading operation task and the operation scheduling of the reclaimer in the planned period, and converting a solution result into an execution instruction of the storage yard equipment to realize high-precision collaboration of the storage yard equipment. According to the invention, the operation efficiency of the port storage yard system can be improved on the premise of ensuring the mixing quality and the ship loading operation continuity.

The invention discloses a safe dynamic positioning control method for a load switching unmanned ship based on spoofing attack detection, and the method comprises the steps: constructing a switching rule based on an A2C algorithm according to an unmanned ship load switching model, so as to select an optimal action corresponding to the load mode switching of the unmanned ship; on the basis of an unmanned ship load mode corresponding to the optimal action, according to a constructed first event triggering mechanism, in combination with a constructed state observer and an A2C algorithm mode estimation / detection mechanism, whether a data signal is tampered by a spoofing attack or not is determined, and then the observation state of the unmanned ship is output; acquiring a control signal of the unmanned ship according to the observation state based on the constructed safety controller; and based on the constructed second event triggering mechanism, the control signal is transmitted to the actuator through a preset communication network, so that the safe dynamic positioning control of the load switching unmanned ship based on spoofing attack detection is realized. According to the method, the problem that the existing method cannot effectively realize load switching of the unmanned ship and cannot realize safe dynamic positioning control under the condition of considering spoofing attacks is solved.

The invention provides a composite feedforward cooperative control method and system for propulsion of a controllable-pitch propeller of a ship. The method comprises the following steps: establishing a propulsion composite model comprising a ship load inquiry function model and a controllable-pitch propeller propulsion cooperative control model; identifying ship resistance characteristics in real time through a load inquiry model, predicting main engine power and propeller rotating speed requirements at different navigational speeds, and calculating a main engine power margin; setting a host security threshold based on the maximum persistent power margin; within the allowable range of the safety threshold value, three cooperative control modes are selected and executed in a self-adaptive mode according to the navigation working condition, wherein the three cooperative control modes include the pitch-accelerator joint control mode under the constant rotating speed of a main engine, the main engine rotating speed-accelerator joint control mode under the fixed pitch of a controllable-pitch propeller and the controllable-pitch propeller rotating speed-pitch joint control mode under the constant power of the main engine. According to the invention, through feedforward prediction and multivariable cooperation, navigational speed closed-loop stable control is realized, the problems of host overload, black smoke emission, high exhaust temperature and large control fluctuation are fundamentally avoided, and fuel economy and all-condition navigation safety are improved.

The utility model belongs to the technical field of ship loaders, and discloses a movable unloading, stacking and ship loading all-in-one machine which comprises a vehicle frame, a plurality of driving wheels are fixedly installed on the left side and the right side of the vehicle frame respectively, boarding bridges are hinged to the left side and the right side of the vehicle frame respectively, and a fixing frame and a fixing gallery bridge are fixedly installed on the upper surface of the vehicle frame. The movable unloading, stacking and ship loading all-in-one machine comprises a vehicle frame, a fixed gallery bridge is arranged on the vehicle frame, a fixed frame is arranged on the vehicle frame, a hopper is fixedly installed in the fixed frame and located over the fixed gallery bridge, an adjusting gallery bridge is hinged to one side of the vehicle frame, and a conveying belt is arranged between the fixed gallery bridge and the adjusting gallery bridge. And after movement is completed, the adjusting gallery bridge is moved, the end of the adjusting gallery bridge is moved to the position over the cargo ship, finally, cargoes are conveyed to the cargo ship through the adjusting gallery bridge, after shipment is completed, the ship loader is driven away from the site and conveniently and rapidly driven away from the wharf, on one hand, the traffic pressure of the wharf is reduced, on the other hand, unloading and shipment are combined, and the shipment efficiency is improved.

The invention discloses a bolted solid waste treatment facility modular construction method and an evaluation system thereof, and relates to the field of integrated module construction.The method comprises the steps that S1, data are collected, whether modular construction conditions are met or not is judged, S2, a solid waste treatment facility is decomposed into sub-modules and a structural framework which are independent in function and can be integrated, S3, the structural framework is constructed, and S4, the sub-modules and the structural framework are constructed. The construction of the structural frame comprises the following steps of S3.1, building of a main body structure, S3.2, building of a building cushion pier, S3.3, building of a weighing device, S3.4, building of a transportation device and S3.5, a shipment fixing structure which is used for supporting and fixing the shipped main body structure. According to the modular construction method of the bolted solid waste treatment facility, the boiler, hundreds of accessory equipment and the boiler pipeline are integrated on one module, the whole module is transported to an artificial island to be installed, the installation mode of a traditional large boiler is broken through, and the project development cost and period are greatly reduced through the remote integration mode.

The utility model relates to the technical field of air pressure reducing valves, in particular to a ship load discharging air pressure reducing valve which comprises a shell, a valve seat is fixedly connected to the inner bottom wall of the shell, a first valve is connected into the valve seat in a sliding mode, and a first limiting plate is connected into the first valve in a sliding mode. The device comprises a shell, a valve seat is fixedly connected to the inner bottom wall of the shell, a first valve is slidably connected to the interior of the valve seat, a first limiting plate is slidably connected to the interior of the first valve, a connecting rod is fixedly connected to the upper surface of the first valve, and a second limiting plate is connected to the outer surface of the connecting rod in a sleeved mode. The outer surface, away from the second limiting plate, of the connecting rod is sleeved with a third limiting plate, a second valve is slidably connected into the second limiting plate, a third valve is slidably connected into the third limiting plate, a threaded rod is fixedly connected to the outer surface of the top of the connecting rod, and the outer surface of the threaded rod is in threaded connection with a shell. The top end of the threaded rod is fixedly connected with a handle.

The application relates to an automatic ship loading operation scheduling method, which comprises the following steps: operation setting and preparation; self-checking and preheating of a ship loader; hatch positioning scanning; ship loader operation scheduling; and ship loader operation. After receiving a material dropping point operation plan, each ship loader is operated to a designated material dropping point through hatch changing and ship moving, and then material dropping operation is started. When all the material dropping point loading plans are completed, the ship loader ends the operation and returns to the original position. The method comprehensively considers various conditions and performs overall scheduling on the ship loading operation.

This invention provides a berthing adaptation calculation method and system based on a CAD / CAE composite model, belonging to the field of ship berthing auxiliary decision-making technology. It includes: constructing a loading stability calculation model and a three-dimensional profile model database based on the ship loading manual and an initial model containing geometric information; integrating hull geometry, stability, and hydrodynamic performance data into a unified composite model, and defining data dependencies and update triggering rules; solving heave and surge response characteristics based on a wave model, and calculating limit values ​​in conjunction with wave parameters; calculating the safe range of the air gap height at the platform outlet based on the gangway overlap geometry, combined with limit values, tides, and load changes, and dynamically quantifying the risk; and using real-world data to drive online calibration of the composite model and dynamic simulation of the berthing overlap process. This invention achieves accurate dynamic calculation and risk assessment of the air gap under multi-source data fusion, adapting to the berthing needs of multiple ships, and improving berthing safety and operational continuity.

The ship shore power multi-energy distribution system comprises an energy access module, an energy convergence module, an intelligent distribution control module, an energy storage management module, a load distribution module and a safety protection module, wherein the energy access module realizes compatible access and preprocessing of solar energy, wind energy, shore power, a generator and a battery; the energy confluence module carries out centralized confluence and standardized output on multiple energy sources; the intelligent distribution control module formulates a dynamic distribution scheme based on a multi-dimensional priority model; the energy storage management module realizes accurate control and safety protection of battery charging and discharging; the load distribution module provides graded power for ship loads; according to the multi-energy power supply system, the problems of poor multi-energy compatibility and low distribution efficiency of the ship are solved, the energy utilization rate is improved by 20%-30%, it is guaranteed that the key load power supply rate is larger than or equal to 99.9%, meanwhile, the service life of a battery is prolonged, and the operation cost and the environmental protection pressure are reduced.

The invention relates to the technical field of energy control, in particular to a cooperative control method and device for a ship-port energy interaction system and a storage medium, and the method comprises the steps: obtaining ship energy storage data in real time through a data collection device, determining corresponding ship load power distribution control parameters, and generating an accurate energy interaction plan, the ship load power distribution is effectively optimized, the port energy utilization efficiency is improved, the operation cost is reduced, meanwhile, carbon emission is reduced, the reference current in the port bus voltage interference state is dynamically adjusted through the secondary control link, and the stability and the response speed of the ship-port energy interaction system are remarkably improved. Therefore, the problems of unreasonable power distribution and unbalanced energy interaction caused by the fact that individual differences of the ship energy storage systems connected to the ship-port direct current micro-grid on key parameters such as the state of charge and the battery capacity are not fully considered by adopting a fixed droop coefficient control method in the related technology are solved.

The application provides a fault control method, device, equipment and medium of a ship, wherein the method comprises: acquiring a first current value and a first voltage value of a target port; calculating a first output equivalent impedance value of the target port according to the first current value and the first voltage value of the target port; judging whether a target ship load is faulty according to the first output equivalent impedance value and an impedance threshold value of the target ship load; if the target ship load is faulty, controlling a first target switch to be turned off, the first target switch being arranged between the target port and the target ship load and being used for controlling whether the target port supplies power to the target ship load. The method can effectively diagnose whether the target ship load is faulty, effectively isolate the power output from the target port to the target ship load when the fault occurs, and achieve the effect of isolating the fault and protecting the navigation safety of the ship.

The application discloses a marine photovoltaic construction ship, comprising a ship body, a marine crane arranged on the ship body, a pile sinking positioning frame positioning tool arranged on the ship body and having a tool positioning groove for positioning each anti-sinking plate of the pile sinking positioning frame, a foundation pile positioning tool arranged on the ship body and having a foundation pile positioning groove for positioning the foundation pile, and a photovoltaic unit positioning tool arranged on the ship body and having a support leg positioning cylinder for positioning the support leg of the photovoltaic unit. The application can hoist the foundation pile, the pile sinking positioning frame and the photovoltaic unit by itself at a wharf without setting a ship loading crane. After arriving at a marine construction site, the marine photovoltaic construction ship can replace a floating crane to perform the pile sinking operation of the foundation pile. The marine photovoltaic construction ship provided by the application has the functions of a ship loading crane, a transport ship and a construction ship, reduces the number of construction ships and lowers the construction cost.

The invention relates to a deep reinforcement learning bulk cargo wharf shipment intelligent production scheduling method and system, and the method comprises the steps: S1, enabling an external application system to send a shipment production scheduling request, and inputting the environmental parameters of a bulk cargo wharf; s2, opening an interface to respond to the request, and checking whether the input bulk cargo terminal environment parameters meet format requirements or not; s3, the authentication component verifies the identity of the requested external application system; S4, the data preprocessing component analyzes bulk cargo terminal environment parameters input by the external application system and converts the bulk cargo terminal environment parameters into multi-dimensional state data which can be processed by a network model input layer; s5, the shipment production scheduling network model processes and predicts the converted multi-dimensional state data, and outputs the value advantage Q value of each state of each ship; and S6, converting a production scheduling component, selecting an allocation scheme with the maximum Q value from results output by the shipment production scheduling network model, outputting shipment production scheduling queue data to an open interface, and returning the data to an external application system by the open interface.

The invention belongs to the technical field of underwater equipment testing equipment, and particularly relates to a modularized suspender type lifting and rotating system and an assembling method. The modularized suspender type lifting and rotating system comprises a hollow fixed rotating device, a driving cross rod and a modularized adjustable suspender assembly. Through cooperative arrangement of the hollow fixed rotating device, the driving cross rod and the modularized adjustable suspender assembly, the lifting positioning function and the rotating driving function are highly integrated in a compact system, the occupied space of equipment is reduced, and the device is particularly suitable for being applied to shipborne or platforms with limited space. According to the design of the modularized adjustable suspender assembly, the lifting stroke of the system is adjustable, disassembly and assembly are convenient, adjustment is easy, and the deployment speed and adaptability in different test scenes are greatly improved. According to the invention, the rotation speed and angle can be accurately set, automatic operation is realized, the manual operation difficulty is reduced, and the test precision and efficiency are improved.

The invention discloses a method for hoisting and turning over a large-diameter special-shaped steel tower section, and belongs to the technical field of bridge construction. The method comprises the steps that a transport ship carrying segments is positioned and fixed; a tower crane lifting hook is connected with the lifting belt and the segment lifting lugs; the tower crane is started for lifting, the sections are made to rotate around the bottom turnover tool, in the process, the offset of the gravity centers of the sections and the plumb line of the lifting hook is dynamically tracked through a real-time monitoring system, and a transport ship is fed back and controlled to conduct transverse displacement compensation, so that the gravity center deviation is controlled within a preset threshold value; after the segments are turned over in place, the segments are horizontally rotated and finely adjusted to a preset hoisting angle through symmetrically arranged mechanical traction devices; and finally, the segments are lifted to the safe height and hoisted to the bridge site, and precise installation is completed. Through cooperative operation of the tower crane and the transport ship, active stability control over the turning process of the special-shaped steel tower section is achieved, the technical problems that in a traditional method, instability is prone to occurring, operation is complex, and precision is low are effectively solved, and the method has the advantages of being high in safety, easy and convenient to operate and accurate in positioning.

The utility model relates to a split water sledge type ship drag reduction device which comprises a bottom plate, a sliding plate is fixedly arranged on the bottom plate, and a water tank is arranged on the top face of the sliding plate. The resistance reduction mechanism comprises an air blocking box, a connecting block and a sliding box, the tops of the air blocking box and the sliding box are hollow, notches are formed in the side walls, the bottom of the air blocking box is fixed to the top face of the sliding plate, the connecting block is hollow, one end of the connecting block is fixedly connected to the notch of the sliding box, and the other end of the connecting block is inserted into the notch of the air blocking box; a driving mechanism I is fixedly arranged on the sliding plate; a mounting frame, a vertical telescopic mechanism, a connecting frame and a resistance reducing roller are mounted on the sliding plate in a sliding manner; the distance between the sliding box and the air blocking box can be adjusted through the driving mechanism I, and the movable mounting frame and the vertical telescopic mechanism are combined to achieve two-degree-of-freedom adjustment of the height and the horizontal position of the resistance reducing roller, so that the device can be dynamically adjusted to the optimal resistance reducing posture according to the ship load, the ship speed and the sea condition; compared with a traditional fixed device, the application range is improved by more than 60%.

The application discloses a hydraulic interlocking control system for a ship loading and unloading arm, which comprises five working states: a normal loading and unloading state, an ERC ball valve closed state, an ERC hoop opened state, an ERC hoop closed state and an ERC ball valve opened state; a switch valve 1, a switch valve 2, a double ball valve switch electromagnetic valve and a double ball valve oil cylinder. When the loading and unloading arm is in the normal loading and unloading state, the double ball valve oil cylinder is opened to make the switch valve 1 in a locked state, and at this time, the ERC hoop oil cylinder cannot be opened in any case, thereby ensuring the safe loading and unloading of the unloading arm. When the ship manifold exceeds the maximum envelope range of the loading and unloading arm, the double ball valve oil cylinder is closed to make the switch valve 1 in an opened state, and then the ERC hoop oil cylinder is opened to make the unloading arm separated from the ship manifold flange. Since the switch valve 2 is switched to the locked state after the ERC hoop oil cylinder is opened, at this time, the double ball valve oil cylinder cannot be opened in any case. The two states are mutually redundant.

The invention proposes a ship power supply system load test method and system based on machine learning, and relates to the technical field of load testing, and the method comprises the steps: obtaining the historical operation environment processing data of a ship, constructing a first database, obtaining the current operation environment processing data of the ship, and constructing a second database; constructing a shared database according to the first database and the second database; obtaining a load test model and a fault test model, outputting simulated load test data and fault test data, and further obtaining working condition load simulation data and working condition fault test data; the method comprises the following steps: carrying out model exchange test to obtain model exchange test data, carrying out load fault linkage analysis on the model exchange test data to obtain load fault linkage analysis data, further carrying out linkage update annotation analysis, further carrying out pre-adjustment on corresponding loads and faults, and obtaining pre-adjustment data; according to the invention, linkage intelligent test analysis of ship load faults is realized.

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 global shipping effective supply index construction method. The method comprises the following steps: acquiring high-frequency automatic identification system data; based on the influence factors of the high-frequency automatic identification system data quantification global marine service supply, a data quantification result is obtained; wherein the influence factors comprise the total ship load ton, the average navigation speed, the non-blank navigation, the ship diversion, the port congestion and the canal congestion; and calculating a global shipping effective supply index based on the data quantification result. The current situation of the global marine supply chain can be accurately evaluated, and the causal influence of the current situation on the shipping price can be understood.

The invention belongs to the technical field of ship loading and unloading, and discloses an automatic ship loading and unloading method and system based on unmanned container trucks and ship-shore collaboration, and the method comprises the steps: recognizing a position mapping relation between the unmanned container trucks and ships through a cross-modal feature fusion network; based on the position mapping relation between the unmanned container truck and the ship, the position of the quay crane lifting appliance is adjusted in a self-adaptive mode, so that alignment of the unmanned container truck, the ship and the quay crane lifting appliance is achieved, and the quay crane lifting appliance is driven to execute loading and unloading operation after alignment is completed; and inputting the ship attitude data obtained in real time into a pre-constructed anti-swing and trajectory prediction model, predicting a container swing trajectory caused by ship swing by using the anti-swing and trajectory prediction model, and dynamically generating a quay crane sling action compensation instruction based on the container swing trajectory. According to the invention, through integration of real-time instruction interaction, multi-mode sensing positioning, self-adaptive alignment and dynamic anti-swing control, 'ship-quay crane-container truck 'full-link unmanned cooperation is realized.

The invention provides a maritime work ship hybrid power generation system, an energy distribution method, a terminal and a maritime work ship. The system comprises a wave power generation module, a solar power generation module, a wind power generation module, a diesel generator set, an energy conversion and storage module and an intelligent energy management module. The energy conversion and storage module comprises an energy conversion unit and a lithium battery pack connected with the energy conversion unit; the wave power generation module, the solar power generation module, the wind power generation module and the diesel generator set are connected with the energy conversion unit. The energy conversion unit is connected with a ship load; and the intelligent energy management module performs energy distribution on the wave energy power generation module, the solar power generation module, the wind energy power generation module, the diesel generator set and the lithium battery pack by using a model prediction control algorithm and a hierarchical energy management strategy. The utilization efficiency of renewable energy sources of the maritime work ship is improved, stable and efficient green power supply is achieved, and fuel consumption and environmental pollution are reduced.