72 results about "Ship master" patented technology

The invention relates to the technical field of unmanned ships, and discloses a novel wave-light complementary power generation-based multifunctional unmanned operation and maintenance ship, which comprises a ship body, an environment monitoring mechanism, an energy recovery mechanism, a full-rotation electric propulsion device, an unmanned aerial vehicle landing platform, an ROV automatic laying and recovery mechanism and an AUV automatic laying and recovery mechanism, the energy recovery mechanism comprises two clean energy power generation devices including wave energy power generation devices and solar power generation devices, the wave energy power generation devices are installed on the two sides of the ship body, the solar power generation devices are installed on a deck of the ship body, and clean energy is stored and redistributed through a storage battery in the cabin. An energy recovery mechanism of the device comprises wave energy power generation devices installed on the two sides of the ship body and a solar power generation device installed on the deck, comprehensive utilization of wave energy and solar energy can be achieved, the utilization rate of clean energy is increased, and the requirement for long endurance of the unmanned operation and maintenance ship is met.

The invention discloses a ship maneuverability prediction method, a ship maneuverability prediction system and a ship maneuverability prediction device taking propeller performance changes into regular waves. The method comprises the following steps: firstly, calculating the motion response, the second-order wave drift force and the drift moment of a ship body under different regular wave conditions based on a potential flow theory, establishing a wave force fitting equation taking the wave direction and the navigational speed as variables, and performing ship manipulation motion numerical simulation in regular waves based on an obtained calculation result; acquiring an input parameter range of the propeller in a manipulating motion state; establishing a CFD numerical model of ship propeller performance in regular waves, simulating heaving and pitching motion of the propeller under motion response, determining the range of the heaving and pitching motion, and calculating propeller thrust data under different wave conditions and input parameters; and carrying out regression analysis on the propeller thrust data, and fitting to obtain a prediction formula of the propeller thrust coefficient in the regular waves. The formula couples the wavelength-to-length ratio, the advance speed coefficient and the wave direction angle, and quantifies the dynamic influence of the wave on the propeller thrust.

The invention belongs to the technical field of ships, and discloses an arrangement position type polar region ship with a stern-direction ice breaking and discharging structure. The arrangement position type polar region ship comprises a ship body, an ice discharging piece and a rudder, and the width size of the ship body is B; the ice discharging piece is fixed to the bottom face of the stern, the outer surfaces of the ice discharging piece are all curved surfaces, the curvature radius R1 of the ice discharging piece in the ship length direction ranges from 0.20 B to 0.80 B, the curvature radius R2 of the ice discharging piece in the ship width direction ranges from 2 to 8, the contact area of the large-curvature outer surface and crushed ice is small, the crushed ice and the curved surfaces are difficult to form a stable attachment relation, and the ice discharging piece is not prone to falling off. Therefore, under the action of hydrodynamic force, crushed ice at different positions of the curved surface can quickly slide to different positions, accumulation of the crushed ice on the inner side of the upper portion of the rudder is avoided, and the sailing safety of a ship is improved. The rudder extends in the height direction of the ship, and the upper end of the rudder is installed on the bottom face of the ice discharging piece in a swinging mode and located at the end, close to the bow, of the ice discharging piece in the length direction of the ship, so that the ice discharging piece plays a role in protecting the rudder.

A safety system for a boat, watercraft or other vehicle includes a kill switch connected to the motor for preventing the motor from running under dangerous circumstances. The system may include proximity sensors operatively connected to the kill switch, so that the motor only runs when the proximity sensor detects a person properly positioned at the captain's console. Other sensors may form an array to communicate with the kill switch, to automate certain features and systems, or to otherwise provide alarms upon detection of dangerous situations, including a carbon monoxide detection sensor system, gate sensors, anchor-down sensors, ladder sensors, ambient light sensors, optical rain sensors for operating an automated windshield wiper safety system, an array of cameras strategically positioned around the periphery of the watercraft for monitoring purposes, and an automated anchor / navigation light system.

The invention relates to a marine ship carbon emission accounting method and device based on interpretable residual learning, and a medium, and the method comprises the steps: complementing the missing of static parameters through ship IMO numbers, carrying out the unified coding and unit standardization of marine log dynamic data, combining the host power and oil consumption dual-path verification of the data validity, and carrying out the calculation of the marine ship carbon emission. After abnormity is cleaned, dynamic, static and meteorological data are fused to construct a carbon emission database; calculating the comprehensive action of wind resistance, still water resistance and wave resistance by applying a fluid mechanics law, generating a physically-driven carbon emission reference value, and synchronously extracting key characteristics such as navigational speed, wave height and ship length; with reference values and features as samples, uncovered dynamic features are learned through a multi-layer residual block chain structure, and a carbon emission accounting model is trained in combination with a cross validation and regularization mechanism; and finally realizing high-precision carbon emission prediction based on the training model. Compared with the prior art, the method has the advantages that the residual network is comprehensively used, interpretability analysis is achieved, and high-precision prediction of ship carbon emission is achieved.

This invention provides an unmanned aerial vehicle (UAV) for intelligent identification of polar ice rinks, comprising a main body, a solar panel, control wings, a propeller, and an observation cabin. The UAV is powered by solar energy, enabling a long endurance. The control wings are symmetrically mounted on both sides of the main body, enabling ascent, descent, and steering. The propeller provides propulsion, working in conjunction with the control wings to complete ascent, descent, and steering movements. The observation cabin incorporates multiple functional modules for ice rink identification, UAV and transport ship positioning, data transmission, and status monitoring. Illumination warning lights are installed on the leading edges of the wings to facilitate ice rink identification and landing during polar night conditions. A method for intelligent identification of polar ice rinks using this UAV is also provided. This invention enables detailed and accurate observation of sea ice morphology around shipping lanes, obtaining precise sea ice data to aid polar transport ships in navigation, assist captains in decision-making, and reduce the risk of distress.

The application discloses a kind of acceleration load calculation formula correction method for pipeline stress analysis, comprising the following steps: 1) based on potential flow theory, diffraction theory, establish ship motion equation;2) in AQWA software, the ship length, type width, type depth, design draft, displacement, inertia moment of general FPSO are input, time domain analysis is carried out, and its hydrodynamic coefficient is obtained, then acceleration load extreme value is predicted using SESAM software;3) according to the ship length, type width, type depth of general FPSO, design draft, structural draft, displacement under different working conditions, the acceleration of each degree of freedom is calculated according to ship motion acceleration load calculation formula;4) error analysis is carried out to the acceleration value calculated in steps 2), 3), and the acceleration formula calculation value needs to be corrected if the error is greater than d;5) introduce correction coefficient f, and the acceleration calculation value with error greater than d is corrected until the error is less than d;6) the corrected acceleration can be applied on the pipeline as acceleration load.

To control an automatic steering appropriately regardless of a ship speed, an automatic steering device includes processing circuitry. The processing circuitry acquires motion information including a ship length and a ship speed. The processing circuitry identifies a non-dimensionalizing motion parameter based on the ship length and the motion information. The processing circuitry generates a dimensionalizing motion parameter by dimensionalizing the non-dimensionalizing motion parameter based on the ship speed. The processing circuitry sets a control parameter of the model-based controller based on the dimensionalizing motion parameter.

The invention relates to the technical field of ship construction, in particular to a ship body jig frame lofting method which comprises the following steps: acquiring a rib line, a first rib position line, a first height line, a second height line and a third height line on a rib theoretical line graph; taking an intersection point of the first rib position line and the second height line as an original point, gradually increasing and shifting the second height line towards the broadside along the length direction of the ship by taking the first reversible deformation as a step length to form a jig frame center line; determining the distance from each frame line to the jig reference surface at the center line of the jig; in the vertical direction, all the rib lines in the area from the first height line to the keel bottom face of the ship body gradually deviate towards the broadside to form a first reversible deformation line type, and all the rib lines in the area from the third height line to the deck side line of the ship body gradually deviate towards the broadside to form a second reversible deformation line type; and manufacturing the jig frame. The requirement for aluminum alloy ship manufacturing can be met, and it is guaranteed that deformation of the aluminum alloy ship after welding meets the construction requirement.

This invention proposes a blowout preventer (BOP) arrangement design method. The lower BOP and lower riser assembly are vertically arranged on the same sidewall of the moonpool, perpendicular to the ship's length direction, using a fixing device. A lower BOP base and a lower riser assembly base are respectively connected below the lower BOP and lower riser assembly. Pressure testing pipelines and corresponding interfaces are provided around the lower BOP and lower riser assembly for BOP pressure testing operations. This invention can be disassembled and arranged separately or assembled as a whole for interchangeable arrangements; it can perform pressure testing and maintenance operations at a single storage location or simultaneously at two storage locations.

This invention discloses a method, medium, and system for dynamic testing of water traffic risks. The method includes: establishing an internal information set of the water traffic system by extracting information from ship equipment, maritime departments, and captain consultations; this information set includes navigation environment information, human-computer interaction information, and ship-to-shore communication information; extracting and measuring the non-uniform characteristics of information transmission within the water traffic system using information flow theory; and using wavelet transform and spectral analysis to extract and analytically model the dynamic characteristics of water traffic risks; then constructing a dynamic testing model of water traffic risks using a data-driven approach; finally, inputting the abnormal characteristic values ​​of the water traffic system information in the test area into the dynamic risk testing model to obtain the calculated risk value for that area. This invention can quickly achieve dynamic testing of water traffic risks, improving the efficiency and targeting of water traffic safety supervision.

The present invention relates to a method for precision control of a torsion box of an ultra-large container ship and a torsion box thereof. The method comprises separately constructing an outer plate central assembly and an inner longitudinal wall plate central assembly, wherein the inner longitudinal wall plate central assembly comprises a main deck and inner longitudinal wall plates perpendicular to each other, and the outer plate central assembly comprises an outer plate. The inner longitudinal wall plate central assembly and the outer plate central assembly are combined to form a torsion box segment. Before the combination, a precision control plate is installed on each of the outer plate central assembly and the inner longitudinal wall plates. Through holes are provided on the precision control plate corresponding to the torsion box ribs, through which the torsion box ribs pass. After the inner longitudinal wall plate central assembly and the outer plate central assembly are combined, a connector is connected between the precision control plate of the outer plate central assembly and the precision control plate on the inner longitudinal wall plates. The precision control plate and the connector are removed when the torsion box segments are assembled. The present invention can effectively control the precision of the torsion box through the precision control plate and the connector, thereby solving the problem that the torsion box has a weak structure along the length of the ship and is easily deformed.

The application discloses a ship master telegraph system, which comprises a driving console master telegraph, a control console master telegraph and a standby control console master telegraph connected with each other through a CAN network, the hardware and software structures of the master telegraphs are same, each master telegraph comprises a core processing module, an interface module, a telegraph handle, a gear transmission device, a potentiometer, a telegraph lamp plate and a buzzer and the like, and each master telegraph can set a system part node, when a gear position is changed, only the lamp plate mask and the step positioning component of the telegraph handle corresponding to the gear position need to be replaced, without the need of reordering a whole set of telegraph handle hardware and compiling adaptive software, the telegraph handle with the replaced gear transmission device makes corresponding changes, the core processing module collects the potentiometer value of the gear position of the telegraph handle and converts the potentiometer value into a telegraph current output to a remote control system to control the gear position change of mechanical components, the master telegraphs of different operation parts can be used interchangeably, the maintenance cost is reduced, and the repair time is shortened.

The application provides a method and system for determining the roll angle of a fishing ship under the action of waves, the method comprising: obtaining ship parameters of a target fishing ship and wave environment parameters of a target sea area; calculating dimensionless parameters according to the ship parameters and the wave environment parameters, the dimensionless parameters including relative ship speed, wave steepness, relative ship width and heading angle radian value; selecting a corresponding roll angle calculation model according to the length range of the target fishing ship; and substituting the dimensionless parameters into the selected roll angle calculation model to calculate the roll angle of the target fishing ship. The application can quickly and accurately calculate the roll angle of the fishing ship based on real-time sailing and wave parameters, realize risk warning and heading optimization, and significantly improve the safety and operation efficiency of the fishing ship sailing.

The invention relates to the technical field of communication, in particular to a dynamic and static secret key encryption technology and method applied to an encryption ship automatic identification system. Comprising a ship name, a call number, a ship length, a ship width, a ship type, a ship native place port and positioning antenna position information, and the ship AIS terminal module is configured to collect ship static data, dynamic data and navigation related data and broadcast the data through a very high frequency channel; the dynamic data comprises longitude and latitude coordinates of the ship, the speed to the ground, the course to the ground, the bow direction, the navigation state and the steering rate, and the navigation related data comprises the draft of the ship, the dangerous cargo type, the destination and the estimated arrival time; the core problem that a traditional AIS system is insufficient in data protection capacity in a dynamic threat environment can be solved.

This invention discloses a digital lofting method for machining templates of ship hull curved surfaces, belonging to the field of shipbuilding technology. The method includes acquiring a three-dimensional digital model of the target ship hull curved surface; calculating and determining the unidirectional principal twist direction of the curved surface based on the model; defining a set of virtual parallel cutting planes, wherein the angle between the common normal direction of this set of cutting planes and the unidirectional principal twist direction is between 85 and 95 degrees; determining the interval positions between each plane in the set of parallel cutting planes along the ship's length direction according to preset rules; calculating the intersection line between each parallel cutting plane and the target ship hull curved surface in the three-dimensional digital model to obtain a set of spatial profiles; extracting the three-dimensional coordinate data of each spatial profile; and generating a digital template file based on the three-dimensional coordinate data for driving machining equipment to create physical machining templates or for direct use in steel plate forming inspection. This invention has the advantage of improving the efficiency of digital lofting of ship hull curved surface machining templates.

This invention relates to the field of shipbuilding technology, and more particularly to a design method for a multi-layer continuous truss support structure for ships, comprising the following steps: fixing support columns between adjacent decks vertically, the support columns being located at deck transverse beams, and the support columns on the same vertical line forming support columns; arranging multiple rows of the support columns at intervals along the ship's width; arranging multiple rows of the support columns at intervals along the ship's length, each row of support columns being located on the same straight line and arranged at the long longitudinal bulkheads of the hull; arranging deck longitudinal girder below each deck along the ship's length, the deck longitudinal girder connecting to the deck transverse beams and the corresponding support columns, such that the deck longitudinal girder, the support columns, and the deck transverse beams form a truss support structure. This invention can ensure the progress and quality of the design and improve space utilization.

The application discloses a B type cabin suitable for a container ship to be changed into an LNG transport ship, which comprises a closed cabin body suitable for the shape of a cargo cabin of the container ship, a dome is arranged on the upper portion of the closed cabin body, and a plurality of longitudinal anti-sloshing cabin walls and transverse anti-sloshing cabin walls are arranged in the closed cabin body. The longitudinal anti-sloshing cabin walls are parallel to two cabin walls along the length direction of the container ship. The transverse anti-sloshing cabin walls are perpendicular to the longitudinal anti-sloshing cabin walls and parallel to two cabin walls along the width direction of the container ship. A plurality of anti-sloshing cabin wall through holes are formed in the longitudinal anti-sloshing cabin walls and the transverse anti-sloshing cabin walls. The B type cabin with different anti-sloshing cabin wall arrangement structures is designed in combination with the structural features of the cargo cabin of the container ship, so as to be suitable for different modification schemes of the container ship to be changed into the LNG transport ship, thereby the safety risk caused by the sloshing impact of the free surface of the B type cabin storing the LNG on the B type cabin and the ship body structure is maximally reduced, and the B type cabin is safe and reliable.

The utility model provides a bulk cargo ship with side-mounted cargo winch, and belongs to the shipbuilding technical field. The utility model discloses including ship body structure, the ship body structure is equipped with a plurality of cargo holds along the length direction, the top of cargo hold is equipped with hatch coaming, is provided with the folding hatch cover on the hatch coaming, the main deck of ship body structure is installed with a plurality of Z type's crane base, is installed with the cargo winch on the crane base, the crane base can expand the hoisting range of cargo winch. The utility model can install the crane on the side deck of bulk cargo ship, and satisfies the hoisting demand of all cargo holds.

The invention relates to an ultra-large automobile transport ship in the technical field of ships, which comprises a ship body, the interior of the ship body is divided into a plurality of layers of smaller unit cabins and a plurality of layers of larger unit cabins, and the smaller unit cabins are distributed above the larger unit cabins; viewed from the view angle of the cross section of the ship body, the following supporting columns are fixed in the ship body: a central supporting column in the middle, and the central supporting column is fixedly connected with a smaller unit cabin and a larger unit cabin from top to bottom; the two side supporting columns are located on the left side and the right side of the center supporting column respectively and fixedly connected with the small unit cabin and the large unit cabin from top to bottom. By the adoption of the scheme, the loading capacity can be further improved by increasing the ship width under the existing limiting conditions of various ship lengths and deck heights, the cross beam span and the component size can be effectively reduced when the ship width is large through the structural arrangement of the three supporting columns, the layout scheme of the ship width of 40-50 m can be supported through the arrangement structure of the three supporting columns, and the ship loading capacity can be further improved. And the maximum width of the Panama canal can be well adapted.

The invention discloses a support positioning and mounting method and a B-type cabin ship manufacturing method.The support positioning and mounting method is used for ship multi-support mounting and comprises the steps that firstly, a web plate, a rib plate and a bottom end common datum plane of each support are selected to serve as ship width datum lines, ship length datum lines and ship height datum lines respectively; an intersection line of a certain rib position cross section of a to-be-installed structure and a top surface or a bottom surface of the to-be-installed structure is taken as a rib position datum line, then a preset shortest distance between a ship width datum line and a midship line is defined as a first distance, a distance between a ship length datum line and the rib position datum line is defined as a second distance, and a distance between a ship height datum line and an upper surface or a lower surface of the to-be-installed structure is defined as a third distance; and positioning is carried out according to the three preset distances of the supports. According to the method, positioning is carried out based on a unified reference and parameters, a constructor can carry out rapid installation according to a preset distance, repeated measurement and adjustment are not needed, uncertainty is reduced, efficiency is improved, the three-dimensional position of the support is accurately determined, installation accuracy is guaranteed, and the problems of pairing gaps and dislocation between multiple sets of paired supports and a ship structure are effectively solved.

The invention discloses an embedded retractable child-mother ship type, a retractable method and a law enforcement ship. The ship type comprises a child ship, the broadside of the child ship is provided with a hull structure which protrudes and extends towards the two sides, and the hull structure is gradually narrowed from the stern to the bow. The mother ship and the stern are provided with concave sub-ship recovery spaces, the two sides of each sub-ship recovery space are provided with concave structures, and the sub-ship recovery spaces are gradually narrowed from the stern to the bow. And the sub-boat fixing systems are uniformly distributed in the sub-boat recovery space along the length direction of the boat. And the control system is deployed on the mother ship and controls the son ship fixing system to fold and unfold the son ship. According to the embedded type retractable child-mother ship type, the retractable method and the law enforcement ship, rapid retractable is achieved through an embedded matching structure of the child ship and the mother ship, a crane and auxiliary equipment of the crane are not needed, the space of the mother ship is saved, the small boat retractable time is shortened, and the safety of the small boat retractable process is improved; convenience is provided for using the modern unmanned operation technology and the intelligent ship automatic folding and unfolding and navigation technology.

The application discloses a sea surface size solving method in sea surface and ship coupling scattering calculation, comprising: determining the radar wave incidence pitch angle, frequency polarization mode of the sea surface and ship coupling scattering calculation; generating a sea surface with more than twice the ship length and more than three times the ship width in the sea surface model based on the required simulated sea state; fusing the ship model and the sea surface model, obtaining the HRRP calculation under different azimuth angles through electromagnetic scattering simulation, and obtaining the scattering energy source distribution of the sea surface and ship coupling scattering calculation under different angles; continuously increasing the sea surface size, obtaining the HRRP change under different sizes, and if the HRRP scattering energy source distribution around the ship model does not change, the sea surface under the size can cover the sea surface and ship coupling scattering path under the current incidence angle. The application can effectively cover the main sea surface and ship coupling scattering points and paths, effectively control the sea surface model size, improve the calculation efficiency, and has strong practical value.

The invention discloses a ship motion response intelligent forecasting system and method. The system comprises a data transmission module, a data reading module and a data forecasting module. The data forecasting module is used for inputting the data of the data reading module into an improved multi-trunk neural network fusion forecasting model, analyzing and forecasting the data and displaying a result; the ship motion response intelligent forecasting system which is reliable, has high timeliness and generalization ability and is provided with a visual interaction interface is designed and established, real-time monitoring and forecasting of six-degree-of-freedom motion of a ship are achieved, workers and a captain are helped to make scientific decisions, and the ship motion response intelligent forecasting system is high in practicability and easy to popularize. And the safety and reliability of marine operation of the ship are improved.

The invention relates to a comprehensive safety system for water sports activities, integrating advanced SMART components to enhance participant security and situational awareness. The system includes a participant's FOB device equipped with a microcontroller, CPU, RF transmitters, receivers, and data processors to detect water immersion. Upon detection, an alarm device on the watercraft activates, and a smart flag automatically raises, emitting visual and auditory signals to alert nearby individuals and vessels. A captain's console provides centralized control, enabling remote operation of alarms and flags while displaying real-time status through a smart device application. Unique identifiers prevent false alarms by ensuring interactions only between paired components. The system employs multimodal immersion detection, GPS-based tracking, and a Man Down Switch to cut off the engine when necessary. This robust design combines precise detection, communication, and safety measures, ensuring reliability in diverse environments and scenarios.

The invention discloses a ship body, a cargo hold and a design method.The cargo hold design method comprises the following steps that a fixed interval value between an outer shell and an inner shell is determined according to ship specifications; on the basis of the fixed interval value, the outer shell linetype is shifted towards the inner shell on a first cross section in the length direction of the ship body, and a limiting line of the inner shell is generated; determining a break angle line of the inner shell on the first cross section; analyzing the variation trend of the limiting line along the length direction of the ship body, and determining the position of the terminal of the first section of the inner shell on the second cross section; determining an inner shell bevel line of the terminal of the first section on the second cross section; constructing an inner shell plane of a first section in the length direction of the ship; and repeating the execution to complete the subsequent segmentation design. Compared with the prior art, the method can increase the cabin capacity and improve the cabin capacity utilization rate.

The invention relates to an Abaqus secondary development-oriented ship body beam total vibration and rigidity checking method, which comprises the following steps of: confirming design parameters of a new ship: equivalent ship body beams, and calculating parameters at typical rib positions to obtain rigidity distribution of a main ship body along the length direction of the ship; counting the distribution of the weight along the length of the ship to obtain an approximate weight distribution state of the whole ship in the length direction of the ship; 2, carrying out modeling by combining a visual interface toolbar module, a model parameter input module, an automatic modeling and mesh generation module and a boundary and loading module which are secondarily developed by Abaqus; 3, carrying out modal analysis during total vibration checking and static analysis during rigidity checking on the finite element model of the hull beam; and 4, judging, checking and correcting the result in the step 3. The problem that performance evaluation such as total vibration and rigidity checking is difficult to simply, effectively and accurately carry out under the condition that information at the initial stage of ship scheme design is incomplete is solved, and rapid and accurate evaluation on the performance such as total vibration and deflection of a ship body at the scheme design stage is achieved.

The invention relates to the field of water surface garbage salvage, and discloses a passive welt primary-secondary type unmanned ship for river cleaning, which comprises a primary ship, a secondary ship assembly and a flexible arm for realizing connection between the primary ship and the secondary ship assembly, the secondary ship assembly comprises a secondary ship main body, and a storage chamber is arranged at the stem of the secondary ship main body; the side, facing the bow, of the storage chamber is open and provided with a salvage unit, an upper output pipe is arranged on the upper surface of the storage chamber, a suction pipeline is arranged on one side of the upper output pipe, and the tail end of the suction pipeline is connected with a garbage inlet of a negative pressure suction element arranged on the mother ship. The ends, facing the stern of the sub-ship body, of the convex wings are provided with air injection cavities, the air injection cavities communicate with exhaust ports of the negative pressure suction elements, the opposite sides of the convex wings of the two sub-ship assemblies are arranged to be in a plane shape parallel to the length direction of the sub-ship body, and the opposite sides of the convex wings of the two sub-ship assemblies are arranged to be in a cambered surface shape. And the cambered surface of the convex wing is bent towards one side of the plane of the convex wing.

The present invention relates to a docking method based on a foldable ship docking connection system, comprising a target ship, wherein the target ship is equipped with a ship docking connection system. The target ship is fixed to the berthing ship via the ship docking connection system. After being fixed, the target ship and the berthing ship are arranged in a T-shape. The ship docking connection system includes two subsystems arranged at intervals along the length of the target ship. By providing a foldable ship docking connection system, the berthing ship can be mechanically limited so that the berthing ship and the target ship are fixed together, thereby effectively reducing relative movement between the two ships and reducing mutual interference between the two ships. At the same time, by adopting a T-shaped fixing method, the positioning of the berthing ship and the target ship is facilitated, and the efficiency of the two ships is improved.

The present application relates to a kind of air layer distribution state monitoring devices for ship air layer drag reduction, including being arranged in the multiple feature points of ship bottom plate, the feature point is arranged in the middle and both sides of ship bottom plate along ship length direction, the feature point is arranged in the bow of ship bottom and is distributed as escaping radian, the feature point is arranged in the stern of ship bottom and is distributed as with fairing convergence;The fixed base is arranged on ship bottom plate, the bottom end of the automatic lifting rod is fixedly arranged on fixed base, the top of the automatic lifting rod is fixedly arranged on fixed cover by buckle, the viscometer is fixedly arranged on fixed cover, the viscometer is connected with data processing module, the data processing module is respectively connected with automatic lifting rod, GUI interface, the probe is arranged in the bottom of viscometer and located in ship bottom plate.The present application measures the thickness of ship bottom air layer, quantifies the state of ship bottom air layer, improves air layer quality monitoring accuracy, while avoiding the increase of ship additional resistance.