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810 results about "Mooring" patented technology

A mooring in oceanography is a collection of devices connected to a wire and anchored on the sea floor. It is the Eulerian way of measuring ocean currents, since a mooring is stationary at a fixed location. In contrast to that, the Lagrangian way measures the motion of an oceanographic drifter, the Lagrangian drifter.

Dynamic pose control method for hoisting of special-shaped concrete filled steel tube section

The invention discloses a special-shaped steel pipe concrete pipe section hoisting dynamic pose control method, relates to the technical field of ocean engineering underwater pipeline installation, and mainly solves the problems of insufficient dynamic response and low space pose control precision when a special-shaped pipe section is hoisted in a complex water flow environment. The method comprises the steps that pipe section space pose design parameters are obtained, the pitch angle and the rolling angle of a pipe section are monitored in real time through an inclination angle sensor set, disturbance torque generated by real-time water flow force is calculated, sling length compensation amount is generated, and the take-up and pay-off speed of a chain block at each lifting point is independently adjusted; and meanwhile, adjusting mooring ropes moored on the two sides are pulled to control the horizontal rotation angle of the pipe section, the height of a lifting hook and tension of the mooring ropes are fed back and adjusted in cooperation with a floating crane positioning system, and finally accurate underwater in-position of the pipe section to the preset position of the seabed is achieved. The device is mainly used for hoisting and sinking operation of the special-shaped concrete filled steel tube section in the marine environment, water flow interference can be effectively resisted, and accurate butt joint and installation quality of a pipe section connector are guaranteed.
Owner:GUANGZHOU SALVAGE BUREAU

Fender structure

To provide a fender structure having a mooring function capable of withstanding large docking pressure.SOLUTION: A fender structure installed in a mooring facility Q having a mooring area R for mooring a ship includes a fender 10 attached to the mooring facility Q and absorbing impact when a ship comes alongside, and a ship capture unit 20 exerting resistance against a ship leaving a shore. The ship capture unit 20 comprises a contact piece 51 coming into contact with a ship body when a ship comes alongside and fastening means for fastening the contact piece 51 to a contact position of the ship body. A slide plate 52 with a contact piece 51 arranged on its surface is placed between a pair of guide portions 30 provided on a surface of the fender 10, and roller portions 53 at left and right sides of the slide plate are inserted into groove portions 31 of the guide portions 30 so that the contact piece 51 can be raised and lowered. Even if a ship rises and falls due to changes in a tide level or the like, since the contact piece 51 can be raised and lowered following the ship body, a mooring state of a ship can be stabilized.SELECTED DRAWING: Figure 9
Owner:PORT & AIRPORT RES INST +1

Cable-supported ocean photovoltaic floating system

The invention relates to the technical field of photovoltaic equipment, and discloses a cable-supported marine photovoltaic floating system, which comprises floating units, a cable net structure, a frame structure and a mooring structure, the cable net structure comprises longitudinal cables and transverse cables, the longitudinal cables and the transverse cables intersect to form a grid shape, and the longitudinal cables and the transverse cables intersect and are fixed in the floating units; the outer ends of the longitudinal cables and the outer ends of the transverse cables are connected with the frame structure, the frame structure is connected with the mooring structure, and the mooring structure is used for keeping pretension of the transverse cables and the longitudinal cables. According to the scheme, the longitudinal cables and the transverse cables are stressed in a face mode, a traditional point stress mode is replaced, external force can be dispersed more evenly, the local damage risk is reduced, and high fatigue resistance is achieved; the longitudinal cables and the transverse cables are fixed through the floating units, relative displacement of the longitudinal cables and the transverse cables is avoided, the integrity of the cable net structure is guaranteed, the frame structure and the mooring structure fluctuate up and down along with stormy waves and adapt to dynamic changes of the cable net structure, and the stability and durability of the whole floating type offshore photovoltaic system in the complex marine environment are guaranteed.
Owner:CHINA CONSTRUCTION POWER & ENVIRONMENT ENGINEERING CO LTD +1

Floating offshore wind power suction anchor foundation mooring lifting lug structure

The utility model relates to a floating type offshore wind power suction anchor foundation mooring lifting lug structure which comprises a suction anchor cylinder body, a main eye plate and a cylinder body thickening plate, the cylinder body thickening plate is fixed on the inner side wall of the suction anchor cylinder body, the main eye plate is fixed on the outer side surface of the suction anchor cylinder body, and the cylinder body thickening plate is fixed on the inner side wall of the suction anchor cylinder body. The main eye plate penetrates through the side wall of the suction anchor cylinder and the cylinder thickening plate and is fixedly connected with a first connecting plate, a second connecting plate is fixed to the other side of the first connecting plate, and the second connecting plate is fixed to the inner side wall of the other side of the suction anchor cylinder. According to the utility model, the suction anchor cylinder body can form a whole with a stable structure.
Owner:FUJIAN YONGFU POWER ENG

Anchor mooring buoy system connected with underwater vehicle

An anchoring buoy system connected with an underwater vehicle comprises an anchoring buoy and a connecting device, the anchoring buoy comprises a buoy body and a gravity anchor, the buoy body floats on the water surface and is connected with the connecting device located underwater, and a power generation device is installed on the buoy body; the power generation device comprises a solar generator, is electrically connected with the connection device and is used for charging the connection device; the gravity anchor falls on a ground bed at the water bottom and is connected with the buoy body through the fixing cable; a device body of the connection device is provided with a fixed connection unit and a movable connection unit. The anchoring buoy system for connecting the underwater vehicle is located at the position of the upper layer of a water body, in the energy charging process, the path is short, energy consumption is low, damage is not likely to happen, the requirement for the terrain in arrangement is low, signal transmission is good, control delay is small, and the diversity of connecting modes is improved.
Owner:崂山国家实验室

Floating type storm integrated system dynamic response analysis method, device and equipment

The invention provides a floating type wind wave integrated system dynamic response analysis method, device and equipment, and relates to the technical field of wind power generation, and the method comprises the steps: constructing a three-dimensional twin space, and defining environment conditions, model parameters and static reference points in the twin space; obtaining a near-field drainage basin range and a speed potential of parameter points in the twin space; calculating a frequency domain hydrodynamic load dimensionless coefficient; calculating a wind load, a mooring load and a constraint load; updating the movement speed, acceleration and displacement of the three-dimensional model in combination with the calculation result of the previous time step; and outputting a dynamic response analysis result of the floating storm integrated system. According to the integrated design method for the floating type storm integrated system, the comprehensive coupling floating type storm integrated system is adopted, power production can be stably increased through the integrated design, the cost and the rated power ratio can be reduced, engineering operation and maintenance cost can be shared, and positive dynamic interaction can be achieved.
Owner:NORTH CHINA ELECTRIC POWER UNIV

Six-degree-of-freedom pneumatic load simulation system of offshore floating fan and control method

The invention discloses a six-degree-of-freedom pneumatic load simulation system of an offshore floating type fan and a control method, and belongs to the field of offshore wind power generation technologies and fan test equipment. The simulation system comprises a wave flow simulation device installed at the forefront of a wave pool, a floating platform fixed in the middle of the wave pool through a mooring anchor chain, a tower installed on the floating platform, a cabin installed at the top of the tower, a six-degree-of-freedom load sensor installed between the cabin and the tower, and a fixed support installed at the right front of the cabin. A plurality of groups of variable-speed fans are mounted on the fixed bracket and are connected with the controller through a brushless electronic speed regulator mounted in the cabin; a crane is installed on the upper portion of the wave pool, a data acquisition box, a visual camera and an upper computer are installed on the top of the crane, the visual camera is connected with the data acquisition box through a synchronous triggering device, and the data acquisition box is connected with the upper computer. According to the method, the high-precision six-degree-of-freedom pneumatic load can be generated, and the dynamic performance of the marine floating type fan can be accurately evaluated.
Owner:OCEAN UNIV OF CHINA

Mooring model rigidity calibration device and calibration measurement method

The invention belongs to the field of ocean engineering hydrodynamic tests, and discloses a mooring model rigidity calibration device and a calibration measurement method.The calibration device comprises a fixed rack, a rack guide rail is installed on the fixed rack, a sliding rack is installed on the rack guide rail, a sliding table guide rail is installed on the sliding rack, and a sliding block is installed on the sliding table guide rail; the sliding block and the sliding table are fixedly connected and can move along the sliding table guide rail together. A laser displacement distance measuring sensor is installed on one side of the sliding table. A laser baffle is installed at one end of the sliding rack. The sliding table is also provided with a first tension sensor and a measuring rotating plate; a rope wheel mechanism corresponding to the measuring rotating plate is also mounted on the fixed rack; a second tension sensor and a tilt angle sensor are mounted on the measuring rotating plate; the laser displacement distance measuring sensor, the first tension sensor, the second tension sensor and the tilt angle sensor are all connected with a data collector through data lines, and the data collector is connected with a data processing control system. And continuous, two-way, automatic and accurate measurement can be realized.
Owner:OCEAN UNIV OF CHINA

Modelica-AeroDyn-MoorDyn-based floating type wind wave combined power generation device integrated coupling calculation method and system

The invention discloses an integrated coupling calculation method and system for a floating type wind wave combined power generation device based on Modelica-AeroDyn-MoorDyn, and relates to the technical field of offshore wind power generation, and the method comprises the steps: constructing a floating type fan model and a wave energy floater model which are highly matched with the actual operation of the floating type wind wave combined power generation device through Modelica; the aerodynamic load can be accurately loaded to the floating fan in an omnibearing mode, meanwhile, the attachment mode between the wave energy floater and the floating fan is established, the freedom degree of the floater can be freely released, enough precision is provided for reliability and stability evaluation of mooring based on the concentrated mass method by combining MoorDyn, and based on collaborative simulation of Modelica-AeroDyn-MoorDyn, the reliability and stability of the floating fan can be evaluated. The simulation result of the multi-floating-body coupling response obtained on the whole can truly reflect the operation state of the floating type wind and wave combined power generation device, and the coupling reliability is improved.
Owner:SUN YAT SEN UNIV

Floating fan mooring load calculation method and system based on coupling simulation

The invention discloses a floating fan mooring load calculation method and system based on coupling simulation, and the method comprises the steps: obtaining the actual parameters of a floating fan, and constructing a first simulation model and a second simulation model in Charm3D and OpenFAST; collecting real ocean current data and configuring ocean current data of each time step length; inputting ocean current data into the two simulation models in real time, and inputting overall dynamic response data of the floating fan from the first simulation model into the second simulation model to obtain motion information of the floating fan; inputting the motion information of the floating fan into the first simulation model from the second simulation model to obtain new overall dynamic response data of the floating fan, and inputting the overall dynamic response data of the floating fan into the second simulation model again for simulation until the simulation period is finished; and mooring load data in the overall dynamic response data of the floating fan at each moment are obtained, and the time domain process of the mooring load of the floating fan is obtained. According to the method, the mooring load of the floating fan under the real ocean current condition of the open sea can be accurately calculated.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

A mooring assembly

PCT designated stage expiredWO2025018896A1BuoysVessel stability improvementRatchetMooring
A mooring assembly (11; 11') for installation on a marine structure (4, 5, 6), above or below a water surface (7), comprises a main frame (101; 101') having a connecting portion (107) for connection to the marine structure. The assembly comprises a stopper device (112; 112'; 112") which is arranged in the main frame (101; 101'), and an elongate stopper member (104) which may be connected to a mooring chain or line. The stopper device (112; 112'; 112") is configured for interlocking with the elongate stopper member (104). The stopper device (112) comprises a housing (122) with a plurality of ratchet pawls (124) arranged in a circular chamber (138), wherein the pawls (124) are movably interconnected via a ring member (125) and biased towards each other by an elastic member (123), and each pawl comprises one or more ratchet teeth (133) for interaction with corresponding teeth (118) on the elongate stopper member (104).
Owner:ENTRION WIND AS

Dynamic modeling method for parameters of large-flexibility mooring anchor chain

The invention belongs to the field of computational mechanics, and discloses a dynamic modeling method for parameters of a large-flexibility mooring anchor chain. On the basis of concentrated mass method modeling, the parameter variation principle is introduced, the nonlinear tension and the nonlinear seabed contact force of the mooring anchor chain are arranged into a unified expression containing parameters in a segmented expression form, and the nonlinear behavior of the anchor chain can be corrected by updating and iterating the parameters. The prediction of the motion state of the anchor chain at the next moment according to the motion state at the current moment in the traditional algorithm is avoided, the dynamic modeling simulation precision of the mooring anchor chain is greatly improved, and a foundation is laid for the subsequent dynamic algorithm solution of the mooring anchor chain.
Owner:DALIAN UNIV OF TECH +2

Marine environment inversion method and system based on mooring buoy

The invention relates to the technical field of marine environment inversion, and provides a marine environment inversion method and system based on a mooring buoy, and the method comprises the following steps: employing a constructed ConvLSTM model to extract spatial features and time sequence features for the obtained marine environment data collected by the buoy, and obtaining the prediction data of the buoy data; carrying out fusion processing on the predicted data of the buoy data and the obtained data of the plurality of ocean observation data sets by adopting a variational mode decomposition and Kalman filtering fusion method; and constructing a marine environment generation model combining the diffusion model and the U-Net model to obtain a marine environment inversion result. The multi-source ocean data is combined, the precision and the calculation efficiency of the inversion model are improved, the inversion algorithm is optimized, the calculation efficiency is improved, and the inversion result is verified by using the actually measured data, so that the reliability and the applicability of the method under different ocean environment conditions are ensured.
Owner:FIRST INSTITUTE OF OCEANOGRAPHY MNR

Anchor parking area control scheduling method and system

The invention discloses a control scheduling method and system for an anchoring parking area, and relates to the technical field of control scheduling. Comprising the following steps: periodically scanning a ship to be moored to obtain an attitude parameter set, synchronously mapping the attitude parameter set to a unified space coordinate system, and constructing an original anchoring parameter matrix; carrying out ship-by-ship matching on the original anchoring parameter matrix and a preset anchoring ground berth rule, constructing a berth feasibility judgment matrix, and identifying an actual mooring area set in the current anchoring ground; based on the berth feasibility judgment matrix, performing spatial reconstruction on each anchoring point in the actual mooring area set by adopting hierarchical scheduling, and outputting a structured scheduling instruction set; and packaging the structured scheduling instruction set into a structured scheduling information packet through shore side communication, and issuing anchoring adjustment information to the target ship. According to the invention, fine identification and screening of the current available anchoring area are realized, and the accuracy and safety of berth distribution are significantly improved.
Owner:JSTI GRP CO LTD +1

Load pressing, arranging and loading device of four-stand-column truss type tension leg floating type draught fan foundation platform

The invention discloses a pressure and load arrangement device of a four-column truss type tension leg floating type fan foundation platform, the pressure and load arrangement device of the four-column truss type tension leg floating type fan foundation platform comprises a ship body assembly, a pressure loading assembly and a load arrangement assembly are arranged in the ship body assembly, and a stretching assembly is arranged on the ship body assembly. The end, away from the ship body assembly, of the stretching assembly is connected with the tension tendon, the end, away from the stretching assembly, of the tension tendon is connected with the seabed, the ballast assembly loads seawater into the ship body assembly, the stretching assembly lifts the tension tendon so that the ship body assembly can dive to the preset draft level, and the load discharging assembly discharges the seawater in the ship body assembly. The hull assembly floats upward to tension the tension tendon. According to the pressing, arranging and loading device of the four-stand-column truss type tension leg floating type draught fan foundation platform, modular design is adopted for all the assemblies, cost is reduced, the structure is simple, the maintenance difficulty is small, and the mooring installation requirement of the tension leg floating type draught fan foundation platform is met.
Owner:OFFSHORE OIL ENG CO LTD

Automatic retracting device for marine anchor and mooring equipment

The invention discloses an automatic retracting device for a marine anchor and mooring machine, which relates to the technical field of marine machinery and comprises an outer shell, a mounting cavity, an anchor chain winding drum, a transmission shaft, a motor I, a buffer mechanism, a retracting and releasing mechanism, an anchor chain and a retracting and releasing opening, the device is reasonable and simple in structure, low in production cost and convenient to mount, during anchoring, the anchor chain is guided to be released stably and orderly through cooperative operation of the motor, a specific transmission structure and the retracting and releasing mechanism, winding and jamming are avoided, the releasing speed of the anchor chain can be reduced, and accurate berthing of a ship is assisted; in the anchoring and weighing process, the buffering mechanism is matched with the adjustable buffering mechanism, torque change of the transmission shaft can be effectively buffered, different working conditions can be adapted, key parts of equipment are protected, the service life is prolonged, and the maintenance cost is reduced; during anchor weighing, the take-up and pay-off mechanism works reversely, the anchor chain outside the ship can be led in and wound on the anchor chain winding drum in order, meanwhile, the buffering mechanism continuously plays a role, and transmission shaft torque sudden change caused by stress or rotating speed change is prevented.
Owner:JIANGSU MASADA HEAVY INDS

Breeding system for seabed

The present disclosure relates to a culture system for the seabed, comprising: a base for being disposed in the seabed; the floating box is arranged above the base, a first containing cavity used for containing liquid is formed in the floating box, and the first containing cavity is communicated with the outside in an openable and closable mode and used for introducing the liquid or discharging the liquid so as to change the overall weight and enable the floating box to move in the height direction; the culture net cage is connected above the floating box; the winding piece is arranged above the culture net cage; one end of the positioning piece is connected with the base, and the other end of the positioning piece sequentially penetrates through the aquaculture net cage and the floating box and then is connected to the winding piece in a retractable mode, and the positioning piece is used for limiting the floating box and the aquaculture net cage to move in the extending direction of the positioning piece. When the buoyancy tank floats to the sea level, the function of mooring an anchor chain can be achieved, and arrangement of the mooring anchor chain is omitted. And meanwhile, the culture net cage and the floating box can still be located on the base when being located on the seabed again through winding and unwinding of the winding piece, and displacement is avoided.
Owner:LONGYUAN (BEIJING) WIND POWER ENG & CONSULTING CO LTD

Deep sea subsurface buoy three-point positioning method

The invention provides a deep-sea subsurface buoy three-point positioning method. The deep-sea subsurface buoy three-point positioning method comprises the steps that the longitude and latitude of a subsurface buoy weight entering water, the seawater depth and the distance between a deep-sea releaser and the subsurface buoy weight are obtained when a deep-sea subsurface buoy is laid; within a set distance from the water entry point of the subsurface buoy heavy block, three position points which are not in the same straight line are selected, and latitude and longitude coordinates of the three position points are recorded; actually measuring the distances from the three position points to the deep sea releaser; and obtaining latitude and longitude coordinate positions of the deep sea subsurface buoy based on a three-point positioning method of solid geometry. The method has the advantages that the calculation method is simple, the operability is high, the actual laying position of the deep sea subsurface buoy can be corrected, and the estimation precision of the laying position of the deep sea subsurface buoy is improved. And powerful support is provided for subsequent acoustic experiment data processing and subsurface buoy recovery and salvage.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

A method for monitoring and warning the mooring state of a ship

The present invention relates to the technical field of ship warning, and discloses a method for monitoring and warning the mooring state of a ship. During a first preset time period, environmental characteristic data, stability data and cable winching data of ships in a target mooring water area are collected at fixed time intervals; a stability score is calculated for the moored ships in the target mooring water area according to the stability data; a feng shui topology is constructed based on all the ships in the target mooring water area, and corresponding standard environmental data is generated for each moored ship based on the feng shui topology and the environmental characteristic data; a stability prediction model is trained based on the standard environmental data, cable winching data and corresponding stability scores of each moored ship during the first preset time period; during a second preset time period, the length and tension of each cable winching are dynamically managed based on the stability prediction model in combination with an optimization algorithm.
Owner:福建金创利信息科技发展股份有限公司 +2

Underwater gliding robot anchoring process energy consumption optimization method and system based on subdomain grey box model

The invention discloses an underwater gliding robot anchoring process energy consumption optimization method and system based on a subdomain grey box model. The energy consumption optimization method comprises the steps that a white box energy consumption mechanism model in the underwater gliding robot anchoring process is established; the whole anchoring energy consumption stage of the underwater gliding robot is divided into a plurality of sub-domains, and a Latin hypercube design method is adopted to simulate and generate a plurality of sub-domain samples meeting variable range constraints by using a hardware-in-the-loop simulation platform; selecting a Kriging model as a sub-domain agent model, fusing the white-box energy consumption mechanism model and constraint conditions of an oil bag volume and a movable mass position to form a sub-domain grey-box model, and performing segmented energy consumption fitting by using the sub-domain grey-box model; and with minimization of energy consumption fitted by the sub-domain grey box model as a target, performing iterative optimization on the sub-domain proxy model by adopting a dynamic guidance self-adjusting particle swarm algorithm, and outputting optimal planning parameters. The method realizes anchoring full-process low-energy-consumption control, and is suitable for marine resource exploration, hydrological monitoring and other tasks.
Owner:HUNAN UNIV

Marine mooring seat positioning device and positioning installation method

The invention discloses a marine mooring seat positioning device and a positioning and mounting method, the marine mooring seat positioning device is used for assisting in mounting a mooring seat, the mounting precision of the mooring seat is effectively improved, and rapid mounting of the mooring seat is achieved. Meanwhile, the mooring seat positioning device for the ship can assist in installing the mooring seat and can also detect the installation precision of the mooring seat so as to ensure that the bottom of the mooring seat accurately extends out of a deck by 3 mm.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Modeling simulation method and system for floating fan and pneumatic wave energy device

The invention discloses a modeling simulation method and system for a floating fan and a pneumatic wave energy device, and relates to the technical field of ocean renewable energy sources, and the modeling simulation method comprises the steps: building a first numerical model of a blade of a wind turbine based on a blade element momentum theory; establishing a second numerical model of the steam turbine of the pneumatic wave energy device based on large eddy simulation and a brake line model; based on a concentrated mass method, establishing a third numerical model of the mooring anchor chain and the floating platform; based on the first numerical model, the second numerical model and the third numerical model, establishing an integrated structure numerical model; and performing simulation analysis on the integrated model based on the integrated structure numerical model. The technical problem that simulation analysis combining a wave energy device and a floating fan lacks in the prior art is solved.
Owner:GUANGDONG DATANG INT CHAOZHOU POWER GENERATION CO LTD

Floating fan with anti-rolling function and control method thereof

The invention discloses a floating fan with a stabilization function and a control method of the floating fan. A wind turbine unit of the floating fan is installed at the top end of a tower, the bottom end of the tower is installed on a floating platform, a plurality of stabilization rudders are arranged on the outer side face of the floating platform, and the floating platform floats on the sea surface and is connected to a seabed through a plurality of mooring chains. The method comprises the steps that a control system controls all rudder wings of the floating fan in real time according to a tilt angle monitored by a sensor in real time and a preset expected tilt angle, different working states are switched to achieve continuous control over the wave energy device, and when the tilt angle of the floating fan does not exceed the expected tilt angle, the floating fan does not start a stabilization rudder, and an automatic stabilization mode is started; and when the inclination angle of the floating fan exceeds the expected inclination angle, stabilization is carried out by controlling the rudder wings. According to the invention, the purposes of stabilizing the floating fan and saving energy can be achieved, so as to cope with complex sea conditions and prolong the working time.
Owner:HAINAN RES INST OF ZHEJIANG UNIV +1

Modeling analysis method suitable for high holding power anchor group system

The invention discloses a modeling analysis method suitable for a high holding power anchor group system, which comprises the following steps of: S1, establishing a solid model of the high holding power anchor group system and seabed soil in a finite element model, and obtaining a finite element model main program; s2, anchor chain tension is applied to an anchor chain tension application point at the front end of the mooring anchor chain entity model; S3, in the calculation process of the finite element model main program, horizontal displacement and vertical displacement of a front mooring point are monitored, horizontal displacement and vertical displacement of a rear mooring point are monitored, and a movement track curve of the high holding power anchor group system entity model is obtained. According to the method, the predictability of the embedding behavior of the high holding power anchor group system can be improved, the accuracy of numerical simulation can be improved, the real-time changing anchor chain tension borne by the mooring anchor chain and the spatial form and transmission tension of the mooring anchor chain and the connecting anchor chain can be accurately described, the modeling complexity of a finite element model is reduced, and the calculation efficiency is improved.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Air-water-shore cooperative overwater float type pier scouring monitoring system and method

The invention relates to the technical field of bridge pier scour monitoring, discloses an air-water-shore cooperative overwater float type bridge pier scour monitoring system, and belongs to the technical field of bridge safety monitoring. According to the system, an integrated framework is formed by a buoy platform, a shore-based cooperative monitoring station and a cloud monitoring platform. The buoy platform is fixed to a pier through a mooring lead, the underwater sonar module of the buoy platform can scan the terrain of a riverbed at multiple angles, and the overwater module integrates high-precision positioning and video monitoring. The shore-based station is provided with a laser scanner and a high-definition camera to monitor the overwater structure and the macroscopic environment of the pier. The cloud platform serves as a control center, converges the multi-source data of the buoys and the shore stations through a communication network, carries out time sequence correlation and fusion analysis, and dynamically evaluates the scour pit development and the bridge pier structure state. According to the invention, the limitation of a single monitoring mode is broken through, collaborative acquisition and intelligent fusion of air, water and shore data are realized, the comprehensiveness, accuracy and early warning capability of monitoring are remarkably improved, and reliable guarantee is provided for safe operation of bridges.
Owner:EDDYSUN (XIAMEN) ELECTRONICS CO LTD

Method for installing tail sliding small boat idler wheels in dock stage

The invention discloses a method for installing a tail-sliding small boat roller at a dock stage, which is characterized in that the tail-sliding small boat roller originally installed at a mooring test stage is advanced to the dock stage to be installed, and the original water-facing operation is changed into ground operation, so that the safety risk caused by the water-facing effect is effectively solved, and the service life of the tail-sliding small boat is prolonged. Ground operation is carried out in the dock stage, a simulated small boat does not need to be manufactured, the risk of toppling of the simulated small boat does not exist, only one bilge auxiliary installation tool needs to be manufactured to install the bilge inclined roller, the horizontal roller can be installed according to the marking position of the center line of the tail gate, the installation period can be greatly shortened, the period length is fixed and controllable, and the installation efficiency is improved. And meanwhile, the labor intensity is also reduced.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Floating navigation mark anchorage positioning method and system

The invention provides a floating navigation mark anchorage positioning method and system, and relates to the technical field of floating navigation mark anchorage detection, and the method comprises the steps: transmitting a first wave beam to an underwater object through a sonar device, screening out a first echo of the underwater object which is an anchorage, and obtaining a target echo; acquiring a ship position; the sonar equipment transmits a second wave beam to the ship; a second distance and a second angle between the sonar equipment and the ship are determined firstly, and then the real-time position of the sonar equipment is determined; then determining a first distance and a first angle between the mooring ingot and the sonar equipment; based on the real-time position of the sonar equipment, the first distance and the first angle, determining the current position of the mooring ingot; and finally, generating an adjustment path based on the current position and the design position of the tied ingot. And the echo corresponding to the concrete anchor is screened out as the target echo, so that the interference of irrelevant objects is eliminated. A sonar detection principle and an algorithm are used to calculate the specific position of the mooring anchor underwater. And by comparing the current position and the design position of the tied ingot, the deviation condition is known, and correction is facilitated.
Owner:ZHANJIANG NAVIGATION AIDS OFFICE NANHAI NAVIGATION SUPPORT CENT MINISTRY OF TRANSPORT

Wave energy conversion device, control method thereof, control device and storage medium

The invention relates to a wave energy conversion device, a control method thereof, a control device and a storage medium, and relates to the field of wave energy power generation. The wave energy conversion device comprises a wave energy conversion unit, a fixed reflecting wall structure and a mooring and anchoring system. The wave energy conversion unit comprises a floater, a power output device and a connecting structure for connecting the floater and the power output device; the static immersion depth of the floater in the initial state is configured to respond to wave excitation and mainly take heaving motion, and the power output device is used for converting the heaving motion of the floater into available energy to be output; the wave energy conversion unit is connected to a seabed or a fixed reflecting wall structure; the fixed reflecting wall structure is arranged on one side of the wave energy conversion unit and is used for reflecting waves with opposite propagation directions, so that the wave energy forms energy accumulation in a local area around the wave energy conversion unit; and the mooring and anchoring system is used for stabilizing the wave energy conversion unit and the fixed reflecting wall structure in a preset water area environment together.
Owner:中国地质大学深圳研究院

Underway temperature-salinity-depth detector laying tool, laying method and recovery method

The invention provides a laying tool, a laying method and a recovery method for a sailing type temperature-salinity-depth detector, and the tool comprises a tow fish which is provided with an attitude sensor on the surface of a housing and is used for detecting the pitch angle of the tow fish; the throwing frame is installed on the ship body and used for guiding the laying path of the tow fish; the winch is installed on a ship afterdeck or in a cabin, and the tow fish is hung through a mooring rope. Wherein an executing mechanism of the winch is in communication connection with the attitude sensor and is configured to respond to an attitude signal generated when the tow fish enters water and drive the tow fish to be adjusted to be in a vertical state; and driving the tow fish to be adjusted to be in a horizontal state in response to a posture signal when the tow fish is out of water. The laying tool provided by the invention is suitable for various laying scenes, realizes automatic posture adjustment of the tow fish when the tow fish enters and exits water, improves the automation degree and safety of operation, avoids human interference, and is beneficial to improving the measurement precision of the temperature-salinity-depth sensor.
Owner:JIANGNAN SHIPYARD (GRP) CO LTD

Mooring ship deck height monitoring system and monitoring method based on laser radar

The invention relates to a berthing ship deck height monitoring system and monitoring method based on a laser radar. The monitoring system comprises a point cloud acquisition subsystem and a data processing subsystem. The point cloud acquisition subsystem comprises a three-dimensional point cloud data acquisition module, and the three-dimensional point cloud data acquisition module is used for acquiring original point cloud data of the whole ship in real time; the data processing subsystem comprises a data processing module, a data storage module and a data transmission module, and the data processing module is used for processing ship original point cloud data output by the three-dimensional point cloud data acquisition module in real time; the data storage module is used for storing the ship point cloud data transmitted by the data processing module in real time; and the data transmission module is used for transmitting the ship point cloud data transmitted by the data processing module. According to the invention, the height of the ship deck can be accurately monitored in real time, the safety and stability of docking of the shore power system and the ship can be improved, and the efficiency of port management is improved at the same time.
Owner:CCCC SECOND HARBOR CONSULTANTS CO LTD