90 results about "Sea mark" patented technology

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 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 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, 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 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.

The utility model provides a multifunctional port navigation mark, which relates to the technical field of navigation and comprises an anchoring system, a floating body, a mark body, a lighting system, a control system and a power supply system. The floating body comprises a cylindrical buoy, the interior of the buoy is of a cavity structure, and a ballast is placed at the bottom of the cavity of the buoy; the four sets of double-color LED lamp panels are arranged, the included angle between every two of the four sets of double-color LED lamp panels is 90 degrees, the four sets of double-color LED lamp panels face four different horizontal directions respectively, and therefore it is guaranteed that passing ships in all the directions can clearly see the four sets of double-color LED lamp panels. The double-color LED lamp panel has a function of emitting red or green light, and can realize a normally-on or burst flashing state according to a received instruction; the flashing frequency can be flexibly changed according to the received instruction, and clear information can be transmitted to passing ships by adjusting the color and frequency of the light; the problems that an indication signal of an existing navigation mark is single, and maritime information cannot be conveniently and accurately obtained by a sailoman are solved.

The application belongs to the technical field of navigation safety analysis, and specifically discloses an intelligent navigation mark and AIS data cooperative navigation safety improvement method, which comprises the following steps: collecting channel images through a navigation mark visual sensor and preprocessing, and generating an initial detection frame through multi-scale detection; dynamically configuring an NMS threshold value according to the physical size of a ship, and outputting a final detection frame with a physical size label; extracting a ship visual feature vector, assigning a feature update strategy to multiple ships according to the physical size, predicting the position through a historical trajectory when the ship moves out of the field of view, and triggering re-identification; and finally fusing the visual tracking result and real-time AIS data to generate a channel risk early warning and a navigation strategy. The application solves the problems of missing of a front-end perception layer, missing of an NMS mechanism leading to missed detection, design of a shielded target re-identification and blank of a re-identification triggering logic in the prior art, and comprehensively improves the accuracy and reliability of navigation safety guarantee.

The application provides a navigation mark collision early warning method based on an artificial intelligence time sequence prediction algorithm, and comprises the following steps: determining a navigation mark rotation area according to navigation mark historical data, wherein the navigation mark historical data comprises navigation mark accident historical data and navigation mark historical latitude and longitude information; obtaining ship navigation track data to be measured; inputting the ship navigation track data to be measured into a constructed track prediction model to obtain track prediction data; judging whether the ship to be measured collides with a target navigation mark based on the navigation mark rotation area and the track prediction data; if yes, sending a navigation mark collision warning signal to the ship to be measured through an AIS base station and leaving the navigation mark rotation area. The application solves the problem of low prediction accuracy of ships and navigation marks in a target sea area in the prior art, which causes a large safety hazard.

The application discloses a low-cost, high-precision and high-reliability method for unmanned ship intelligent environment perception by fusing image segmentation and millimeter wave radar, which can acquire the environment information of the route and the surrounding of the unmanned ship in real time during the driving of the unmanned ship, including the shoreline, the sailing ship, the navigation mark and the floating object, and provide decision support for the real-time route adjustment and obstacle avoidance of the unmanned ship. The method comprises four parts of the millimeter wave radar, the binocular camera, the image segmentation module and the information fusion module, the image segmentation module is responsible for reading the image data, executing the image segmentation algorithm, identifying the target and generating the minimum fitting rectangle of the target, the information fusion module is responsible for receiving the data of the radar and the image segmentation module, acquiring the polar coordinates of the fusion target, matching the target size and outputting the result to the controller.

The application provides a kind of offshore buoy in-situ cleaning device, cleaning ship and cleaning method, belongs to the technical field of navigation mark cleaning, for solving the problem that the surface of buoy will gather bird droppings and other dirt, affecting the navigation function of buoy. Among them, the cleaning device covers and cleans the buoy from top to bottom, including connecting base, cleaning barrel and tightening rope; the cleaning barrel is rotatably connected to the lower side of the connecting base and can be driven to rotate by the driving mechanism; the cleaning barrel has no barrel bottom, the barrel shell is provided with first reinforcing structure and second reinforcing structure along the generatrix and circumferential direction respectively, the inner side of the barrel shell is provided with first cleaning structure, the bottom of the barrel shell is rotatably connected with barrel bottom ring, the barrel bottom ring includes two layers of barrel bottom ring shell and elastic membrane, and the elastic membrane is located on the inner side; the tightening rope is arranged in the interlayer between the barrel bottom ring shell and the elastic membrane, after the cleaning barrel covers the buoy, the tightening rope is tightened, and the elastic membrane is tied around the outer periphery of the buoy. The device combined with the matching method has superior cleaning effect and significant environmental protection significance.

This invention belongs to the field of water conservancy engineering technology and discloses an anti-collision navigation buoy for water conservancy projects. It includes a buoy body and photovoltaic panels and a counterweight ring installed above and below it, respectively. It also includes a line-laying protection mechanism installed inside the buoy body, with a plurality of protective springs arranged in a ring array around the outer periphery of the buoy body. The above solution works by having the buoy body contact the protective springs upon impact with a ship, compressing and buffering them. When the ship pushes the buoy body, the winding roller rotates to release the extension cable. The rotation of the winding roller is then reduced by a planetary reducer, driving a transmission disc to rotate and compressing a large coil spring. The transmission disc, through the planetary reducer, causes the winding roller to rotate in the opposite direction until the extension cable is completely retracted, returning the buoy body to its original position. This solves the problem of anchor chain breakage or anchor dragging when the buoy is impacted by a ship.

The invention discloses a navigation mark visual identification and collision early warning method and system based on deep learning, and relates to the technical field of intelligent shipping, and the method comprises the steps: collecting a navigation channel monitoring video stream in real time, and carrying out the preprocessing of a key image frame; constructing a navigation mark detection model based on an improved Officient Det network, and outputting the position and category of the navigation mark in the key image frame; the method comprises the following steps: constructing a ship track prediction model through ship historical track data, predicting a short-time track of a ship, calculating the relative position, speed and course angle of the ship and a navigation mark, and constructing a dynamic collision risk field; and fusing the visual detection result, the radar ranging data and the AIS information to obtain a ship collision risk, and triggering graded early warning based on a preset risk threshold. According to the method, the improved deep learning model and the real-time calculation framework are combined, the robustness of navigation mark identification is improved, an efficient collision early warning mechanism is established, and technical support is provided for intelligent shipping.

1. Name of the product in this design: Navigational Buoy (Polyurethane Fiber). 2. Purpose of this design: To help guide the navigation of ships, locate and mark obstacles and indicate warnings. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The utility model belongs to the technical field of navigation mark lights, discloses a water navigation mark lifting device, and aims to solve the problems that the existing navigation mark lifting device is provided with a connecting cable which penetrates through the middle part of a navigation mark main body, and water carried on the connecting cable easily enters the middle part of the navigation mark main body because the connecting cable needs to move, so that the operation of a driving motor is easily influenced. According to the technical scheme, the navigation mark comprises a navigation mark body, an ultrasonic detector and a controller are arranged on the navigation mark body, the ultrasonic detector is in circuit connection with the controller, an inner cavity is formed in the navigation mark body, and the top face of the inner cavity is made of heat conduction materials so that heat conduction and heat dissipation can be conveniently conducted on electric appliances in the inner cavity. A vertical winch is arranged at the top of the navigation mark body, a connecting cable is wound on the winch, a driving motor is arranged in the inner cavity and connected with a controller circuit, the winch is arranged outside the inner cavity, steam entering the inner wall of the inner cavity can be reduced, and normal use of the driving motor is prevented from being affected.

The invention discloses a navigation mark device, relates to the technical field of navigation marks, and mainly aims to enable light emitted by a navigation mark lamp to be conveniently observed by passing ships, so that the warning effect of the navigation mark lamp is improved, and the navigation channel safety is improved. According to the main technical scheme, the navigation mark device comprises a first shell, a navigation mark light, an anti-swing assembly, a floating body and an anchoring assembly; the anti-swing assembly is arranged in the first shell and comprises a supporting shaft, a universal connecting piece and a balance weight piece, the supporting shaft is connected with the first shell through the universal connecting piece and rotates relative to the first shell through the universal connecting piece, one end of the supporting shaft penetrates out of the first shell to be connected with the beacon light, and the other end of the supporting shaft is connected with the balance weight piece. The counterweight piece is used for keeping the supporting shaft in a vertical state; the floating body is arranged on the first shell and used for providing buoyancy support for the first shell; the anchoring assembly is arranged on the first shell and used for limiting the first shell to a designated water area position.

The utility model belongs to the technical field of navigation marks, and particularly relates to a guide type navigation mark lamp base convenient to align and install, which comprises a base fixing support, a guide disc, a locking matching block and a base heightening support. The guide disc and the locking matching block are connected and are arranged in the base fixing bracket; the upper portion of the guide disc is connected with the top face of the base fixing support, and the lower portion of the locking matching block is connected with the bottom face of the base fixing support. The base heightening support is arranged at the bottom of the base fixing support. According to the utility model, the guide disc and the locking matching block which play a guiding role are arranged, so that the height matching of the base and the beacon light is realized, and the installation process of the beacon light is safer and more convenient; and by forming the drainage hole in the locking matching block, the purpose of preventing water accumulation is achieved, and therefore the service life is prolonged.

The utility model provides a novel lamp float swivel, relates to lamp float technical field, a novel lamp float swivel, including floating seat, lighting mechanism and anti-twist mechanism, floating island includes bull gear, anti-twist mechanism includes counterweight arc plate, gasbag strip, chain and pinion, the pinion moves around bull gear, and the anti-twist mechanism is connected with the bull gear. The rotating speed of the chain is reduced by matching with the counterweight arc plate connected with the air bag strip, so that the torsion of the chain connected with the lamp when the lamp floats on the horizontal plane is reduced, and the phenomenon that the navigation mark floats out due to the fact that the chain shackle is disengaged and shackles are avoided; sprinkling rising on the sea surface is buffered through rotation of the buoy batten and supporting of the first spring, the lighting mechanism is kept stable, torsion of the chain during rotation is reduced through meshing of the gears and stress reset of the balance weight and the damping spring, and the phenomenon that the navigation mark is drifted due to the fact that the chain shackle is disengaged and shackle is avoided.

The application discloses a V-shaped cross-section river navigation guarantee method, which comprises the following steps: using navigation marks to realize channel marking at safe navigation water depth positions on both sides of a river; detecting river water depth at the positions of the navigation marks; when the water depth of the navigation marks exceeds a preset value of the safe navigation water depth, controlling the navigation marks to move to the side bank direction; when the water depth at the positions of the navigation marks is lower than the preset value of the safe navigation water depth, controlling the navigation marks to move away from the side bank direction, so that the water depth at the positions of the navigation marks is still within the safe navigation water depth range; and through detecting the water depth at the positions of the navigation marks, the navigation marks are controlled to move horizontally along the left and right directions of the river cross-section. Thus, a wider safe channel range can be provided during the rising water period, and ships can select to sail in the areas with slower or faster water flow within the safe range, so that the sailing speed is improved under the premise of safety. Meanwhile, the safety of the channel can be well guaranteed during the dry period, and the risk of ship grounding is avoided.

The utility model relates to the technical field of anchor pullers, in particular to self-locking type anchoring equipment of a floating navigation mark suitable for a channel of a rock-based riverbed, which comprises an anchor puller main pile body, an anchor chain head, an electric cylinder, a lifting connecting rod, a traction pull block, a main self-locking wing panel, a limiting bearing block and an auxiliary self-locking wing panel, the anchor puller can well adapt to the situation that the size of a hole is loosened and changed in the using process, and when the position of the navigation mark needs to be adjusted, the anchor puller can be flexibly taken out through the electric control device for position adjustment.

The invention discloses an in-situ stability evaluation method for a seabed navigation mark gravity anchor. The in-situ stability evaluation method for the seabed navigation mark gravity anchor comprises the following steps: acquiring a mooring force field measured value of the seabed navigation mark gravity anchor; obtaining a mooring force simulation safety threshold value of a seabed navigation mark gravity anchor; comparing the field measured value of the mooring force with the simulated safety threshold value of the mooring force; if the field measured value of the mooring force is smaller than the simulated safety threshold value of the mooring force, judging that the seabed navigation mark gravity anchor is in a stable state; and if the field measured value of the mooring force is infinitely close to the simulated safety threshold value of the mooring force, judging that the seabed navigation mark gravity anchor is in an unstable state. According to the method for evaluating the in-place stability of the seabed navigation mark gravity anchor, the stability of the seabed navigation mark gravity anchor is judged by comparing the on-site measured value of the mooring force with the simulated safety threshold value of the mooring force, so that the in-place stability of the seabed navigation mark gravity anchor can be accurately evaluated, and long-term safe operation of a project can be guaranteed.

The invention discloses a Yangtze river dolphin acoustic monitoring device based on a navigation mark pontoon and a self-adaptive noise reduction method.According to the Yangtze river dolphin acoustic monitoring device based on the navigation mark pontoon, a modular aluminum profile frame with a vibration isolation function is constructed, the frame is fixed to an existing structure of the Yangtze river pontoon in a lossless mode through a damping and noise reduction assembly, and welding or drilling is not needed in the whole process; the system integrates a hydrophone, an overwater host and a solar power supply and shock absorption and noise reduction structure, and a hydrophone depth adjustable mechanism is innovatively designed. Through passive vibration reduction of the frame and active self-adaptive adjustment of the depth of the hydrophone, self-noise interference of the wharf boat is effectively isolated and eliminated, the influence of environmental noise is weakened, the signal-to-noise ratio of signal monitoring of the cowfish is remarkably increased, and the device can quickly adapt to various beacon vessel platforms in the Yangtze River. While the integrity of the wharf boat is protected, the coverage range and accuracy of Yangtze River guinea pig monitoring are remarkably improved, and therefore a high-precision and high-universality solution is provided for ecological monitoring of the Yangtze River water area.