201 results about "Sea mark" patented technology

The invention provides a navigation mark early warning method and system based on multi-factor fuzzy comprehensive judgment. The method comprises the following steps: firstly, determining key factors influencing navigation safety, and distributing weights according to the importance of each factor; secondly, environment data are collected in real time through a sensor, data of nearby ships are collected through an automatic identification system (AIS), and cleaning and formatting processing are carried out; thirdly, on the basis of the judgment factors and the weights, constructing a fuzzy relation matrix, inputting data collected in real time, processing the data through a fuzzy logic algorithm, and outputting a fuzzy vector; and finally, according to the fuzzy vector, the current risk level is evaluated, and an early warning signal is generated and broadcasted through communication equipment. The system comprises a data collection module, a data preprocessing module, a fuzzification module, a fuzzy reasoning module, an optimization module, a defuzzification module and an early warning generation module. The fuzzy relation matrix is optimized by combining the genetic algorithm and the particle swarm optimization algorithm, and the accuracy and robustness of the early warning system are remarkably improved.

The invention provides a sea buoy in-situ cleaning device, a cleaning ship and a cleaning method, belongs to the technical field of navigation mark cleaning, and aims to solve the problem that bird droppings and other dirt are gathered on the surface of a buoy to affect the navigation aid function of the buoy. Wherein the cleaning device covers and cleans the buoy from top to bottom and comprises a connecting base, a cleaning barrel and a tightening rope; the cleaning barrel is rotationally hung on the lower side of the connecting base and can be driven by the driving mechanism to rotate mutually; the cleaning barrel is free of a barrel bottom, a first reinforcing structure and a second reinforcing structure are arranged on a barrel shell in the generatrix direction and the circumferential direction correspondingly, a first cleaning structure is arranged on the inner side of the barrel shell, a barrel bottom ring is rotationally connected to the bottom of the barrel shell in a hung mode, the barrel bottom ring comprises a bottom ring shell and an elastic film, and the elastic film is located on the inner side. The tightening rope is arranged in the middle of an interlayer of the bottom ring shell and the elastic film, after the buoy is covered with the cleaning barrel, the tightening rope is tightened, and the elastic film is bundled to the periphery of the buoy. The device is combined with a matched method, the cleaning effect is excellent, and the environment-friendly significance is remarkable.

The invention discloses a virtual electronic channel design method and system based on an AIS (automatic identification system) technology, and the method comprises the steps: carrying out the precise correction of the position of a ship through multi-source data fusion in combination with AIS and GNSS (global navigation satellite system) data, generating a continuous and smooth virtual channel, and achieving the real-time dynamic correction of the channel through an environment adaptation correction term and a Kalman filtering algorithm. The influence of ocean current, wind speed, tide and other factors on the channel is dealt with. The system transmits updated virtual navigation channel data to a ship terminal and a port management center in real time in a low-delay manner through a VHF data link and a 5G edge computing technology, so that safe navigation of the ship under the condition of no physical navigation mark is ensured. In addition, the system can dynamically adjust the channel path, improves the emergency response capability of the port, and keeps the efficient operation of the port. The method is suitable for ship navigation and safety guarantee in extreme environments such as freezing and typhoon, and has a wide application prospect in sea areas which are susceptible to typhoon, such as frozen ports in northern China, East China Sea and the like.

The invention provides a marine ranch water quality management method and system, electronic equipment and a storage medium, and the method comprises the steps that a water quality monitoring device, an edge computing terminal and a water quality adjusting device are arranged on a navigation mark in a marine ranch in advance, and the edge computing terminal obtains water quality parameter data of the marine ranch at a plurality of continuous moments; the water quality parameter data is collected through a water quality monitoring device, and if the water quality parameter predicted value exceeds a preset water quality normal range, a target adjusting amount is determined based on the water quality parameter predicted value; the water quality adjusting device adjusts the water quality according to the target adjusting quantity; near-end water quality prediction and water quality deterioration accident treatment can be completed at the navigation mark, the defect that water quality data cannot be monitored in real time and water quality deterioration accidents cannot be treated in time due to the fact that the time interval of Beidou satellite data transmission is long is overcome, and ecological risks and economic losses are effectively reduced.

The invention belongs to the technical field of navigation, and discloses an inland river bridge group water area ship navigation collision avoidance method and system, and the method comprises the steps: carrying out the environment modeling based on an electronic river map; designing a bridge group collision avoidance path planning algorithm; and designing a bridge group navigation mark auxiliary yaw early warning system. An inland river bridge group water area ship navigation collision avoidance system is established, and environment information is obtained based on an electronic river map and processed into an environment model capable of being directly utilized. A ship-bridge group is used as a research object, a ship-bridge group collision-free path is established based on a voronoi method, factor constraints are considered, and a ship bridge group operation collision avoidance strategy is researched. The navigation track of the ship is predicted, navigation mark acousto-optic early warning prompt is supplemented for the ship yawing or having the collision risk, and the bridge group water area ship yawing early warning function is achieved.

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.

The invention relates to the technical field of marine navigation collision avoidance, in particular to a navigation channel navigation mark collision monitoring method and system based on multi-sensor fusion. The method comprises the following steps: acquiring ship data and water surface data; the navigation direction angle is determined, and the collision risk degree is determined according to the direction angle, the distance between the ship and the navigation mark and the ship speed; determining a collision trend performance index according to the numerical change trend of the collision risk degree; determining an inertial parameter influence index according to the total weight of the ship and the speed of the ship; determining a channel curve influence index according to the flowing direction of the water and the flow velocity of the water; determining the danger avoidance degree by combining the collision trend performance index, the inertial parameter influence index and the channel curve influence index; and carrying out collision early warning on the ship and the navigation mark at the current moment in combination with the collision risk degree and the avoidance risk degree. According to the invention, based on multi-dimensional data analysis, a more accurate navigation mark collision monitoring and early warning result is provided, and the accuracy of navigation mark collision detection is improved.

The invention belongs to the technical field of water traffic transportation safety and navigation mark navigation aiding, and mainly relates to a navigation mark anti-collision early warning method based on multi-sensor fusion, and the method comprises the steps: constructing a multi-sensor fusion architecture integrating an AIS terminal, a laser radar and an AI camera, and achieving the omnibearing monitoring and precise recognition of a ship in a navigation channel; a grading response mechanism is adopted, corresponding functions are dynamically started according to the real-time distance between the ship and the navigation mark, and targeted response from early warning to emergency warning is achieved; a legal evidence chain packaging mechanism is introduced, a unique ID is generated for each early warning event, formatted evidence is stored in an associated mode, and integrity and traceability of data are ensured; through a dynamic energy supply strategy, an equipment operation mode is intelligently adjusted according to a storage battery voltage threshold value, and continuous and stable work of the system under the conditions of cloudy and rainy days, night and the like is guaranteed; according to the invention, the accuracy, timeliness and reliability of navigation mark collision early warning information are effectively improved.

The invention discloses an automatic verification method and system for a topological relation of ocean charting data, and relates to the technical field of charting verification, and the method comprises the steps: obtaining a chart vector element, splitting a broken line into a line segment unit according to a node, splitting a surface domain into a ring domain unit according to an outer ring and an inner hole, and extracting a control point; constructing fractal spectrums for the line segment units based on a multi-resolution box dimension method, comparing the fractal spectrums with normal spectrums, and marking complexity abnormal sections; constructing a polymorphic behavior matrix according to predefined geometric expectation and semantic rules, analyzing conflicts, and identifying topology anomalies; a tide level field is obtained, a coupling constraint field is constructed in combination with equal-depth closed loop hierarchical nesting, and tide depth coupling abnormity of a channel boundary and a closed loop is verified; a lighthouse, a navigation mark and a tide level station control point are screened, and connectivity abnormity is verified according to a semantic rule; and summarizing to generate a verification report. Fractal analysis, a semantic matrix, isodepth coupling and a communication rule are combined, break point errors are accurately distinguished, topological anomaly is detected in a fusion mode, and the time-space consistency of a sea chart and the connectivity of control points are guaranteed.

The invention discloses a marine navigation mark intelligent maintenance robot based on a ship and a self-adaptive operation method of the marine navigation mark intelligent maintenance robot, and belongs to the field of marine navigation mark maintenance. The marine navigation mark intelligent maintenance robot based on the ship comprises a base and a second telescopic arm, and further comprises a rotating disc rotationally connected to the end of the second telescopic arm, a driving motor is fixedly connected to the rotating disc, the output end of the driving motor is fixedly connected with a rotating shaft, and a rotating mechanism is arranged between the second telescopic arm and the rotating shaft; the second telescopic arm is used for driving the rotating disc to rotate; the sliding rails are evenly and fixedly connected to the rotating disc, clamping claws are arranged on the sides, away from the second telescopic arm, of the sliding rails, and a clamping mechanism is arranged between the sliding rails and the rotating shaft and used for driving the clamping claws to move along the sliding rails; the detection probe is fixedly connected to the turntable and is used for detecting the appearance of the beacon light and the position of the fixing bolt; the problems that when equipment on the buoy is maintained, potential safety hazards are large, the maintenance efficiency is low, and the maintenance difficulty is large can be solved.

The invention provides a method and a device for determining a navigation channel area, a medium and a program product. The method comprises the following steps: S1, acquiring position coordinates of navigation mark points contained in each water channel; s2, for each water channel, determining a radius parameter alpha of a corresponding alpha polygon according to the position coordinates of a group of navigation mark points corresponding to the water channel; s3, for each water channel, obtaining an alpha polygon corresponding to the navigation mark point of the water channel; s4, obtaining a nearest point pair of the navigation mark points between every two alpha polygons, and determining the alpha polygons of which the distance between the nearest point pairs is smaller than a preset distance; s5, for any two alpha polygons of which the distance between the nearest point pairs is smaller than a preset distance, determining a second polygon connected with the alpha polygons; and S6, combining all the alpha polygons and the second polygons to obtain a channel region. By means of the technical scheme, the navigation mark point information is used, and the navigation channel area can be determined in time when the navigation channel area changes.

The utility model belongs to the technical field of navigation marks, and particularly relates to a navigation mark capable of resisting multiple waves. The navigation mark comprises an upper fixing plate, a wave impact resisting structure, a damping system, a connecting shaft, a floating ball, a lower fixing plate, an adjustable anchoring cable and a fixing object. The upper part of the upper fixing plate is connected with the navigation mark body; the two ends of the wave impact resisting structure are connected with the upper fixing plate and the lower fixing plate correspondingly. The damping system is located in the wave impact resisting structure. The upper fixing plate and the lower fixing plate are X-shaped, and the floating ball is arranged between the X-shaped ends of the upper fixing plate and the lower fixing plate; the connecting shaft penetrates through the floating ball, and the two ends of the connecting shaft are connected with the tail ends of the X-shaped structures of the upper fixing plate and the lower fixing plate. The adjustable anchoring cable is connected with the lower fixing plate; and the lower part of the adjustable anchoring cable is connected with a fixture. Energy generated by multiple waves is effectively absorbed and dissipated, shaking of the navigation mark due to the action of the waves is reduced, and vibration is prevented from being directly transmitted to the navigation mark body.

The utility model relates to the technical field of water traffic, in particular to an anti-collision navigation mark. The anti-impact navigation mark comprises a floating disc seat and an elastic wrinkled air bag ring arranged in the floating disc seat, and the elastic wrinkled air bag ring is installed in an annular groove formed in the outer ring wall of the floating disc seat. According to the anti-collision navigation mark provided by the utility model, on one hand, the expanded elastic wrinkled air bag ring can effectively reduce the impact force of sea waves on the navigation mark and reduce the amplitude of the whole navigation mark caused by the sea waves, so that the phenomenon of rollover of the navigation mark is effectively avoided; on the other hand, when the expanded elastic wrinkled airbag ring is impacted by the sea waves, gas in the elastic wrinkled airbag ring flows back into the mounting cylinder and drives the piston to slide downwards, so that the conical rubber disc pushes the sea waves downwards, and the gas in the elastic wrinkled airbag ring flows back into the mounting cylinder and drives the spring to stretch at the same time; therefore, the impact force on the floating disc seat is effectively reduced, and the stability of the navigation mark is further improved.

A ship-shaped buoy water spraying type bird repelling device comprises a ship body and a navigation mark, the navigation mark is arranged in the middle of the ship body, the ship-shaped buoy water spraying type bird repelling device further comprises a control box arranged on the ship body, and a water pump and an inductive switch receiver are arranged in the control box; the water inlet pipe and the water outlet pipe are connected with the water pump and penetrate through the side wall of the control box; the branch pipe is connected with the water outlet pipe and is connected with the self-rotating spray head; and the microwave inductor is in signal connection with the inductive switch receiver. The induction switch starts connection after receiving a signal of the microwave inductor, the storage battery and the water pump are communicated with electricity, the water pump starts a water pumping function, water enters the water outlet pipe through the water inlet pipe, then enters the branch pipe and finally reaches the self-rotating type spray head, and the self-rotating type spray head rotates to spray water to drive birds. Birds cannot be hurt by adopting water spraying for bird repelling, meanwhile, water spraying for bird repelling is low in noise, sound and light pollution cannot be caused to residents on the water bank, and environmental pollution cannot be caused.

The invention provides an intelligent monitoring and early warning system based on a marine navigation mark, and relates to the technical field of monitoring and early warning, and the system comprises a navigation mark data collection module which is used for obtaining various data according to a preset navigation mark monitoring interval. And the risk assessment module is used for obtaining a position offset risk value according to the influence of the interference factor data on the navigation mark position. And the deviation early warning module is used for setting a position deviation threshold value according to the historical pose data in combination with the external factor data, judging whether the position deviation risk value of each navigation mark exceeds the position deviation threshold value or not, and generating a preliminary early warning signal if the position deviation risk value of each navigation mark exceeds the position deviation threshold value. And the ship influence early warning module is used for calculating a ship navigation influence coefficient according to the navigation data of the surrounding ship sending the preliminary early warning signal navigation mark in combination with the real-time position parameter, and generating early warning information in combination with the position offset risk value. The navigation mark monitoring precision is improved, the early warning timeliness is enhanced, the operation and maintenance cost is reduced, and the method can automatically adapt to different environments and scenes.

The invention discloses a navigation aid information real-time transmission and analysis system based on a navigation mark, and relates to the field of navigation mark telemetering, the system is composed of a plurality of functional modules, and the system comprises a data acquisition module for acquiring dynamic data, meteorological data and hydrological data of ships near the navigation mark; the edge calculation module is used for generating a ship real-time track according to the ship dynamic data, obtaining a ship prediction track based on the ship real-time track and the hydrological data, and calculating a deviation degree based on a preset ship channel and the ship prediction track; the risk prediction module carries out risk analysis on the deviation degree according to meteorological data and carries out route adjustment according to a risk analysis result, and the route adjustment module generates an optimized route by applying an A * algorithm and considering ship dynamic constraint and channel limitation and then sends an instruction in time through the VHF radio module, so that risks of ship deviation from a channel, collision and the like are effectively avoided; the safety of sailors, ships and goods is greatly guaranteed.

The invention provides a multi-sensor integrated marine navigation mark data transmission method and system, and relates to the technical field of data transmission, and the method comprises the steps: pre-arranging a plurality of distributed monitoring nodes in a marine navigation mark data collection box, and carrying out the cascade topology connection with a plurality of marine environment modal sensors through an isolated serial bus; in a polling return process of mapping acquired data by taking a plurality of reference return periods as constraints, performing return data chaos monitoring based on a plurality of dynamic self-adaptive baselines, and outputting a plurality of spectrum disturbance vectors; performing shrinkage compensation to obtain a plurality of update return periods; and executing asynchronous priority arbitration return to the remote Internet of Things service platform. According to the method, the technical problem that the confidence coefficient of the marine navigation mark data is reduced due to the fact that the marine navigation mark data transmission method in the prior art usually uses a fixed return period and cannot effectively cope with the dynamic change of the marine environment is solved.

The invention, which relates to the edge computing field, discloses an inland ship overwater intelligent navigation aid and navigation information service system comprising: a system integration multi-source sensor for fusing and processing hydro meteorology and obstacle data under low visibility; the side cloud collaboration module processes real-time and global information in a labor division manner, analyzes a rule and optimizes a route; the channel modeling module constructs a real-time three-dimensional channel, and plans and dynamically adjusts an optimal path; the virtual navigation mark module dynamically deploys and manages navigation marks through AIS / Beidou; the information pushing module provides dynamic and static navigation data as required; the risk early warning module realizes graded warning and emergency linkage; the ship-shore cooperation module performs remote monitoring scheduling and channel analysis; the inland river adaptation module ensures that system parameters and algorithms are automatically matched with different river environments and rules. The method has the advantages that the multi-class perception and side cloud cooperation technology is fused, accurate navigation aiding, dynamic risk management and control and ship-shore efficient cooperation of the inland waterway are achieved, and intelligent upgrading of inland navigation is enabled in an all-around mode.

The invention discloses an intelligent navigation mark and ecological environment cooperative monitoring system for an offshore wind power area, and relates to the technical field of offshore monitoring, the system comprises a plurality of intelligent navigation mark nodes deployed in an offshore wind power plant, at least one gateway node and a monitoring center, the intelligent navigation mark nodes integrate a plurality of monitoring and communication modules, the system maintains a virtual resource map through a gateway node or a specified node, and records information such as a node geographic position, link quality, residual energy and a dynamic role; the intelligent navigation mark nodes periodically broadcast heartbeat packets and dynamically switch roles, an optimal data transmission path tree is initially constructed, and local network reconstruction is started when the nodes fail or links are interrupted; according to the invention, the adaptability and the anti-damage and disaster-tolerant capability of the network are improved, the cooperative monitoring of the navigation safety and the ecological environment is realized, and the reliable transmission of key data is ensured.

The invention provides a navigation mark monitoring data processing method and a navigation mark monitoring data processing system for ship water pollutant discharge, which are applied to the technical field of sewage discharge, and are used for obtaining readings of various types of water quality sensors on navigation marks in real time and calculating the change rate of the readings in a preset monitoring time period. And intelligent judgment is carried out according to a combination mode of reading change rates of different sensors. The method can intelligently distinguish the fault of the sensor from the actual water pollution, and significantly improves the accuracy of the monitoring data and the reliability of pollution event identification, thereby avoiding the wrong attribution of the pollution responsibility, and providing a more accurate and more reliable monitoring means for the water environment protection.

The present invention relates to the field of navigation equipment technology, and in particular to an intelligent sensing navigation mark device and an early warning method thereof, including an AIS receiving unit, a control unit, a compass sensor, a positioning unit and an LED warning light; a Raspberry Pi PC and an 8-way switch on-off controller are integrated inside the control unit, and the AIS receiving unit forwards the message to the Raspberry Pi PC of the control unit to enter the data processing process after receiving the AIS message; the AIS receiving unit is used to receive the AIS message of the ship in the waters near the navigation mark, and extract the ship coordinates and speed and heading information after parsing; the compass sensor is used to obtain the rotation angle of the navigation mark, and the positioning unit is used to obtain the position of the navigation mark; the control unit controls the operation of the LED warning light. The present invention integrates a variety of information technologies to collect navigation environment data in real time. When a ship approaches, it can actively warn the ship to avoid it, reduce the economic losses and navigation risks caused by collision, greatly improve the efficiency of navigation mark navigation at night, and make navigation in waters safer.

The invention belongs to the technical field of navigation marks, and particularly relates to a navigation mark floating ball for port channel guidance, which comprises a floating ball main body, a shell is fixedly connected to the upper end of the floating ball main body, a controller is arranged on one side of the front end surface of the shell, and a navigation mark lamp is arranged at the bottom of an inner cavity of a lampshade. A gravity sensing type foreign matter removing mechanism for preventing foreign matters from covering the surface of the lampshade is arranged on the shell; by means of the gravity sensing type foreign matter removing mechanism, when foreign matter covers the surface of a lampshade, the lampshade retracts into a shell, the surface of the lampshade scrapes an inner ring of a collecting frame, the foreign matter attached to the surface of the lampshade is scraped into a collecting groove, and after the upper end face of the lampshade is flush with the upper end face of the collecting frame, a scraper is driven to move transversely, so that the foreign matter is removed. Foreign matter attached to the upper surface of the lampshade is scraped into the collecting groove, the situation that due to the fact that the lampshade is covered with the foreign matter, the light emitting effect of the beacon light is affected, and the visibility and the identification degree of a beacon are reduced is avoided, and potential safety hazards in the navigation process are reduced.

The invention belongs to the technical field of navigation safety analysis, and particularly discloses an intelligent navigation mark and AIS (Automatic Identification System) data collaborative navigation safety improvement method, which comprises the following steps: acquiring a navigation channel image through a navigation mark visual sensor, preprocessing the navigation channel image, and generating an initial detection frame through multi-scale detection; an NMS threshold value is dynamically configured according to the physical size of the ship, and a final detection frame with a physical size label is output; extracting ship visual feature vectors, distributing feature updating strategies for multiple ships according to physical sizes, predicting positions through historical tracks when the ships move out of a visual field, and triggering re-identification; and finally, a visual tracking result and real-time AIS data are fused, and a channel risk early warning and navigation strategy is generated. According to the method, the problems of missing of a front-end sensing layer, missing detection caused by the fact that an NMS mechanism is not involved, shielding of target re-identification design and re-identification trigger logic blank and the like in the prior art are solved in a targeted manner, and the accuracy and reliability of navigation safety guarantee are comprehensively improved.

The construction method of the interactive real-scene three-dimensional waterway belongs to the field of waterway management. It conducts real-scene simulation of inland waterways based on digital twin technology, realizes real-time display of digital waterways, and thus achieves the purpose of viewing waterborne target information such as ships and navigation aids through interaction. The construction method of the interactive real-scene three-dimensional waterway belongs to the field of waterway management. It conducts real-scene simulation of inland waterways based on digital twin technology, realizes real-time display of digital waterways, achieves the purpose of viewing waterborne target information such as ships and navigation aids through interaction, solves the problems of lack of scene authenticity and interactivity existing in the existing construction methods of three-dimensional waterways, and meets the needs of waterway management.

The application relates to the technical field of navigation mark equipment, in particular to an adjustable anchor chain type navigation mark based on buoyancy and a gyration radius adjusting method. The adjustable anchor chain type navigation mark comprises a navigation mark body, a rope and a sinkstone. The upper end of the rope is connected with the navigation mark body, the lower end of the rope is connected with a contraction float after being wound around a fixed pulley arranged on the sinkstone. The contraction float comprises a wear-resistant sleeve and a float assembly fixed on the side wall of the wear-resistant sleeve. The wear-resistant sleeve is arranged on the rope between the navigation mark body and the fixed pulley. The lower end of the rope is fixedly connected with the wear-resistant sleeve after being wound around the fixed pulley. The gyration radius of the navigation mark body can be adjusted through the pulling of the rope by the contraction float.

The present application relates to inland waterway inspection method, system and storage medium, including navigation mark detection and water level detection, navigation mark detection includes: step 11. Data acquisition;Step 12. Navigation mark identification;Step 13. Navigation mark positioning;Step 14. The real coordinates of navigation mark are inquired in the preset navigation mark data table, if the real coordinates of navigation mark have corresponding navigation mark in the preset navigation mark data table, then the current position information of the navigation mark is recorded;Step 15. Corresponding detection report is generated;Water level detection includes: step 21. Image acquisition;Step 22. Obtain the water gauge position image;Step 23. The water gauge position image is filtered, smoothed and denoised;Step 24. The water gauge scale and the image information with similar RGB values are extracted by setting threshold, and the scale is extracted by character extraction method, and the final water level information is obtained.The present application can automatically judge whether the navigation mark is damaged, the position is deviated, whether there is missing condition and water level.

The floating navigation mark for the inland waterway comprises a navigation mark body, a bottom plate is fixedly installed at the bottom end of the navigation mark body, a plurality of floating plates are arranged on the periphery of the bottom end of the bottom plate, a first outer ring and a second outer ring are fixedly installed at the two ends of each floating plate respectively, and rotating shafts are rotationally connected to the inner side walls of the first outer rings and the inner side walls of the second outer rings. The solar navigation mark has the advantages that the arranged navigation mark body can play a marking role in the daytime, the floating plates are unfolded through the pulling rope, the solar panels on the floating plates can be kept floating upwards, the solar panels on the floating plates can be kept floating upwards, the solar panels on the floating plates can be unfolded through the pulling rope, and the solar panels on the floating plates can be unfolded through the pulling rope. According to the floating navigation mark, electric energy can be collected through the solar panel, in the night state, the floating plate can be folded upwards to be attached to the outer side of the navigation mark body again through the effect of the pulling rope, the light-emitting lamp panel is powered through the solar panel, and then the prompting effect of the floating navigation mark at night is improved.

This invention relates to the technical field of water level information monitoring based on navigation aids, and discloses a method and device for water level information monitoring based on multi-intelligent sensor fusion of navigation aids. The method includes: using preprocessed multi-sensor data to perform a correction estimate of water depth based on a correction term to obtain the corrected water depth; performing position matching analysis between the location of the navigation aid vessel and its reference coordinates, and determining whether the location of the navigation aid vessel meets navigation standards based on the water depth; if the location of the navigation aid vessel does not meet navigation standards, generating an optimal adjustment path to drive the navigation aid vessel to the recommended location. This invention utilizes flow velocity, temperature, and attitude angle to construct a correction term, improving the accuracy of water depth estimation. It combines BeiDou position information with reference coordinates to determine whether the navigation aid vessel deviates from navigation standards. Once deviated, path planning drives the navigation aid vessel to adjust its position, achieving integrated water level monitoring and navigation aid management.

This invention relates to the field of navigation aid equipment technology, specifically to an adjustable anchor chain navigation aid based on buoyancy and a method for adjusting its turning radius. The adjustable anchor chain navigation aid includes a navigation aid body, a rope, and a boulder. The upper end of the rope is connected to the navigation aid body, and the lower end passes over a fixed pulley on the boulder and is connected to a retractable float. The retractable float includes a wear-resistant sleeve and a float assembly fixed to the side wall of the wear-resistant sleeve. The wear-resistant sleeve is fitted onto the rope between the navigation aid body and the fixed pulley. The lower end of the rope passes over the fixed pulley and is fixed to the wear-resistant sleeve. The turning radius of the navigation aid body can be adjusted by pulling the rope with the retractable float.

This application relates to a steel-hulled marker vessel, belonging to the field of navigational aid technology. It includes a hull, a cable, an anchor, a guide clamp, and a towing assembly. The cable is mounted on the hull, the anchor is mounted on the cable, the guide clamp is mounted on the hull and used to scrape away debris from the cable during retraction, and the towing assembly is mounted on the hull and used to wind up the cable. This application eliminates the need for manual cleaning of debris from the cable, improving the time-consuming, labor-intensive, and unsafe process of cleaning debris from the cable of a marker vessel.