77 results about "Marine navigation" patented technology

A system and method of calculating an estimated time of arrival for a traveler is provided, along with a notification of this estimated time that is sent to a third party. The traveler is equipped with a navigation unit having a global positioning sensor and a wireless communications device. The navigation unit communicates with a service center equipped with a server capable of generating a preferred navigational route for the traveler. The service center also includes a traffic database for maintaining current traffic information. Once the traveler has selected a predetermined time and frequency of notifications based upon a selected criterion, the navigation unit transmits the traveler's position and velocity to the service center. The service center then calculates the estimated time of arrival based upon the traveler's position, velocity, distance to be traveled and traffic and weather conditions. Once this time is calculated, the service center sends a notification to the third party.

The invention discloses a ship anti-collision early warning method based on multi-source heterogeneous information fusion, and the method comprises the steps: S1, obtaining the multi-source target information of a ship navigation radar, an AIS, and an infrared camera, and unifying the targets of all sensors to a same coordinate system; s2, preprocessing the radar and the AIS target; s3, performing information fusion on the preprocessed radar and AIS target; s4, performing information fusion on the target after radar and AIS fusion and the infrared image recognition target; and S5, based on the dynamic information of the final fusion target and the state of the ship, calculating the relative distance and orientation with the ship, and when the target is located in a preset fan-shaped area right in front of the ship and the relative distance is smaller than a dynamic danger threshold value, triggering a multi-stage acousto-optic character alarm. According to the invention, various sensor information can be integrated to detect and track the water surface target, and the robustness and the detection rate are improved, so that a more accurate early warning effect can be achieved on the water surface obstacle when the ship sails.

The invention relates to a combined attitude determination technology, in particular to a high-precision combined attitude determination method based on a multi-antenna GNSS (Global Navigation Satellite System) and an INS (Inertial Navigation Satellite System), which comprises the following steps of: S1, fixing a GNSS receiver and the INS on a carrier; s2, calculating carrier position information and carrier speed information, and establishing a double-difference carrier phase observation model; s3, calculating a baseline vector predicted value between the antennas; s4, an LAMBDA algorithm model based on INS attitude information constraint is constructed; resolving the IC-LAMBDA algorithm model by using a least square method to obtain an optimal integer solution of the integer ambiguity; s5, calculating a baseline vector between the antennas; carrier attitude information is solved; and S6, fusing the GNSS navigation information and the INS navigation information by using an extended Kalman filter. The method solves the problems of low attitude measurement precision and poor scene adaptability of the existing integrated navigation technology, and is suitable for the fields of unmanned aerial vehicle control, unmanned vehicle driving, unmanned agricultural machinery seeding, marine navigation surveying and mapping and the like.

The invention relates to the field of intelligent control of marine navigation, and discloses a formation dynamic interception path planning method and device based on a differential game theory, and the method comprises the steps: constructing a differential game model comprising a formation and intercepted ships; designing revenue functions for the two parties; obtaining a Nash equilibrium strategy by solving a Hamiltonian-Jacobian-Bellman equation of the game, and solving an individual optimal control instruction of each formation member; and fusing state information among formation members through a consistency protocol, adjusting individual instructions to meet anti-collision and formation cooperative constraints, and generating a final control instruction. According to the method, historical adversarial data is learned by using the neural network, and the weight of the revenue function is adaptively and dynamically adjusted to cope with different tactical scenes; and the whole decision-making process is set under a model prediction control framework for rolling optimization, so that the real-time performance, the collaboration and the intelligent level of interception path planning are greatly improved, and the interception efficiency is effectively improved.

The present invention provides a system for measuring real-time meteorological and oceanographic data using a buoyage network for smart ports and harbours. It consists of a moored floating station or moored buoy, or network of buoy-based measurement stations (A) moored at the port or harbour waters with the marine navigation and land-based measuring station (B) mounted at jetty or wharf or quay wall of port and harbours. The buoy-based system (A) is equipped with a cylindrical steel buoy structure featuring a mast (7) and is secured using a two-point mooring system. The present system comprises of an integrated monitoring and data transmission system that collects the real-time meteorological and oceanographic data from the sensors and processes the acquired data based on calibration, enabling accurate and reliable measurements. The processed data is then stored in the system's internal memory for analysis and transmitted to a remote-control station.

The invention provides a maritime photovoltaic maritime navigation monitoring system, and relates to the technical field of maritime safety monitoring. The maritime photovoltaic maritime navigation monitoring system comprises a radar system, a video monitoring system, a ship automatic identification system, an electronic fence system, a very high frequency communication system, a hydro meteorology acquisition system, an acoustic optical driver isolation system and a processing device, the processing equipment is used for respectively acquiring first navigation data of the target ship detected based on the radar system, second navigation data of the target ship detected based on the video monitoring system and third navigation data of the target ship detected based on the ship automatic identification system; and fusing the first navigation data, the second navigation data and the third navigation data to determine target navigation data of the target ship. According to the invention, the comprehensiveness and accuracy of offshore safety monitoring can be improved.

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 belongs to the technical field of marine environment monitoring, and particularly relates to an air-sea cooperation-based enteromorpha identification and density estimation method and system, and the method comprises the steps: carrying out the aerial survey of a target sea area through an unmanned plane, collecting a sequence image, processing the sequence image based on a deep learning model, and generating an enteromorpha distribution probability graph and a density estimation graph; carrying out marine navigation and fixed-point sampling through an acoustic sensor carried by an unmanned ship to obtain actually measured density data of enteromorpha; the unmanned aerial vehicle sends the generated enteromorpha distribution probability graph and / or density estimation graph to the unmanned ship, the unmanned ship receives the enteromorpha distribution probability graph and / or density estimation graph, plans a navigation path and sampling points according to the enteromorpha distribution probability graph and / or density estimation graph, and goes to a high-probability or high-uncertainty area for fixed-point sampling; and the unmanned aerial vehicle receives actually measured density data returned by the unmanned ship and fuses the actually measured density data with own identification and estimation results so as to update and optimize the deep learning model and form an air-sea collaborative monitoring closed loop.

The self-adaptive dynamic optimization system comprises a plurality of key modules, a signal acquisition and monitoring module receives signals through a multi-band antenna, acquires ship and environment data and then transmits the ship and environment data to an analysis and decision module, and the analysis and decision module judges the condition of a blind area through an intelligent algorithm, formulates a strategy and issues an instruction; the antenna adaptive adjustment unit regulates and controls antenna parameters and detects and corrects when encountering obstacles; the communication link intelligent switching unit ensures stable switching of links; the data dynamic optimization processing module optimizes transmission; the power management and energy-saving module performs intelligent power management; and the man-machine interaction and early warning module realizes information interaction and storage. The problem of a ship-borne communication blind area is solved, the system stability is enhanced, the energy efficiency is improved, and marine navigation, operation and scheduling are 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 belongs to the technical field of inertial navigation, discloses a real-time monitoring method for the health state of an inertial device of a modulation type inertial measurement unit, and is suitable for application scenes such as aviation navigation and marine navigation. The relative output information of the two inertial navigation systems is cooperatively used to construct constraint observation, a joint error state adaptive filter is established as a state monitoring filter, a real-time state monitoring criterion is established based on the estimated output of the filter, a diagnosis threshold is determined, health state monitoring is performed, and the method has a wide application prospect. Meanwhile, an azimuth gyroscope drift variation fitting method is provided to monitor the abnormal state of the azimuth gyroscope. The inertial device health state monitoring method provided by the invention does not need the assistance of accurate reference information, and provides reliable guarantee for the safety and reliability of long-endurance navigation in a GNSS denial environment.

The embodiment of the invention provides a marine diesel engine interactive intelligent agent device based on cooperation of large and small models and a temporary first-aid repair method, and aims to solve the problems of rapid diagnosis, emergency decision and first-aid repair guidance when a marine diesel engine breaks down suddenly. The device comprises a large language model serving as a core and responsible for task decomposition, decision generation and information integration; the professional small model carries out optimization analysis on tasks such as fault positioning, emergency decision making, spare part replacement and time prediction; the interactive agent core module supports voice and text input and provides real-time feedback; the multi-modal data real-time fusion module integrates various data sources and dynamically allocates weights; and the knowledge graph and inference engine module provides accurate first-aid repair guidance. The large language model is innovatively taken as a core to be deeply cooperated with a plurality of professional small models, so that the rapid diagnosis, emergency decision and temporary repair guidance of sudden faults of the marine diesel engine in the marine navigation process are realized, and the blank of the intelligent temporary repair technology of the marine diesel engine is filled.

The present application relates to the technical field of photoelectric detection and navigation, and discloses a solar vector orientation method, device and computer equipment based on thermal sensitive vision, to solve the problem of signal attenuation and low reliability of existing visible light or polarized light solar detection technology under complex weather. The method comprises: acquiring a thermal infrared image of a sky area by using a near-infrared thermal sensitive vision sensor; performing image preprocessing to enhance the solar target information; detecting and segmenting the solar target area in the image, and accurately positioning the solar center coordinates by using a centroid estimation or ellipse fitting method; converting the image coordinates into the solar position observation vector in the carrier coordinate system of the bearing sensor according to the sensor calibration parameters and installation parameters; and combining the theoretical solar vector calculated by an astronomical algorithm to solve the orientation information of the carrier. The present application is suitable for complex lighting conditions, has the advantages of strong anti-interference and high precision, and can be used for attitude determination in aerospace and marine navigation.

The utility model relates to the technical field of control panels, and discloses a marine navigation signal lamp control panel which comprises a control panel, square plates are fixedly connected to the left side and the right side of the top end of the control panel, Y-shaped grooves are formed in the middles of the square plates, motors are fixedly connected to the outer walls of the square plates, and the output ends of the motors are rotationally connected with rotating frames. One end of the rotating frame is fixedly connected with a polygonal block, the outer wall of the polygonal block is fixedly connected with a connecting rod, the top end of the polygonal block is fixedly connected with a fixing plate, and the outer wall of the polygonal block is fixedly connected with a clamping column. A square plate at the top end of the console is provided with a Y-shaped groove, a motor drives a rotating frame to rotate, a clamping column on the outer wall of a multilateral block at one end of the rotating frame is clamped with the Y-shaped groove, the multilateral block is connected through a connecting rod, a fixing plate is arranged at the top end of the multilateral block, and due to the shape of the Y-shaped groove, the multilateral block drives the fixing plate to ascend and then turn over, so that a waterproof cover is automatically opened; and normal waterproof performance of the control panel is ensured.

The present application relates to the field of marine navigation technology of ship, specifically relates to a ship marine navigation system based on compass direction finding and satellite fusion, comprising a data acquisition module, a disturbance correlation analysis module, a pseudo course determination module, a navigation credibility evaluation module, a dynamic fusion weight adjustment module and a stable heading output module;Through collecting the compass heading data, satellite positioning data and ship body attitude data of the target ship, the correlation between the heading change and the roll disturbance is analyzed, and the pseudo heading change caused by the sea state disturbance is identified in combination with the track change state;Based on the disturbance correlation result, the credibility of the compass navigation and satellite navigation is dynamically evaluated, and the fusion weight of different navigation data is adaptively adjusted to generate stable heading information, which is beneficial to reduce the influence of ship body attitude disturbance on the heading measurement result under complex sea state conditions, and improve the continuous stability and navigation reliability of ship heading navigation.

The utility model discloses a wind power detection alarm device for ship navigation, which relates to the technical field of ship navigation and comprises a bottom table, a boss mounted at the upper end of the bottom table, a support column rotatably connected to the boss, a three-color audible and visual alarm mounted on the boss, a circular truncated cone mounted on a support rod of the three-color audible and visual alarm, and a support table mounted on the circular truncated cone. A wind cup type wind speed sensor is installed on the supporting table, a ring block is arranged on the bottom side of the circular truncated cone, the supporting column is rotationally matched with the ring block, and a wind direction plate is installed on one side of the supporting column. The problem that in the prior art, the supporting column of the warning device is bent by strong wind is solved, the supporting column is driven by the wind direction plate to rotate around the boss and the ring block, the smooth face of the supporting plate is parallel to the wind direction, it is guaranteed that the strong wind is not vertically blown to the arc-shaped face of the supporting plate, and the impact force of airflow is weakened; when airflow flows through the supporting plates, lift force from inside to outside can be generated and is counteracted by atmospheric pressure, and deformation of the supporting plates is avoided.

This invention provides a testing device for outboard motors, belonging to the field of outboard motor testing technology. It includes a simulation component and an outer water tank. The simulation component is located inside the outer water tank, and the outboard motor can be installed inside the simulation component. The simulation component can test the outboard motor. This invention uses a simulation component to fix the outboard motor on a clamping platform and injects liquid water suitable for the working water depth into the inner water tank. Simultaneously, sea salt is supplied as needed to adjust the salinity of the liquid water. Then, a first deflection mechanism drives the outboard motor, causing it to deflect back and forth along an arc-shaped positioning guide rail. A worm gear assembly drives the outboard motor to sway left and right, and a damping slide achieves lateral displacement. The salinity in the inner water tank is maintained, stably simulating the marine navigation environment and forming a multi-dimensional composite swaying scenario. This enables accurate testing of the outboard motor under all operating conditions, reducing the data distortion problems caused by single swaying and freshwater testing in traditional devices.

The present application belongs to the technical field of inertial navigation, and discloses a kind of modulation type inertial measurement unit's inertial device health state real-time monitoring method, suitable for aviation navigation, marine navigation and other application scenarios.The present application cooperates with the relative output information of two sets of inertial navigation system to construct constraint observation, establishes a joint error state adaptive filter as a state monitoring filter, establishes a real-time state monitoring criterion based on the estimated output of the filter, clearly defines the diagnostic threshold and performs health state monitoring, and proposes a bearing gyro drift change quantity fitting method to realize abnormal state monitoring of the bearing gyro.The inertial device health state monitoring method proposed by the present application does not require accurate reference information assistance, providing a reliable guarantee for the safety and reliability of long-time navigation in GNSS denial environment.

The invention discloses a method for detecting an offshore wind driven generator by a maritime radar, which comprises the following steps of: 1, starting the maritime radar and preheating the maritime radar, and starting scanning by an antenna; 2, during antenna scanning, recording N pulse echo powers of a given distance gate in a certain direction in a coherence interval; 3, periodically detecting and analyzing non-stationary signals of the time sequence; 4, obtaining a periodic index through the periodic detection analysis in the step 3; 5, the periodic indexes are judged; 6, when the periodic index is larger than or equal to a preset threshold value, the target in the specific distance door is judged to be the offshore wind turbine; according to the method, the power time sequence data is acquired through the single and multiple scanning speed modes of the antenna, the characteristic indexes are comprehensively extracted in combination with multiple periodic detection algorithms, the wind driven generator target can be accurately identified, and the method has the characteristics of improving the detection accuracy, reducing the radar false alarm rate, guaranteeing the marine navigation safety and being wide in applicability.

The utility model discloses a marine navigation radar, which comprises a navigation radar, a plurality of matching blocks are fixed on the navigation radar, each matching block is hinged and installed on a support assembly, each support assembly is hinged and installed on a connecting block, each connecting block is arranged on a placing frame, and the placing frame is arranged on the support. And a driving adjusting assembly is fixed on the placement frame, so that the height of the navigation radar can be adjusted conveniently, and the detection range of the navigation radar is widened.

A propulsion control system includes at least one marine drive configured to propel the marine vessel, a proximity sensor system configured to measure proximity of objects in a marine navigation area around the marine vessel to generate proximity measurements, and a control system. The control system is configured detect that an extendable element on the marine vessel is in an extended position, define an extended buffer zone around the marine vessel based on the extended position of the extendable element, and control the at least one marine drive based on the proximity measurements and the buffer zone so as to avoid the objects in the marine navigation area entering the extended buffer zone.

The utility model mainly provides a duckweed assembly which comprises a cabin body, a duckweed assembly and a balance weight piece, the duckweed assembly is movably connected with the peripheral side of the cabin body, and the balance weight piece is connected with the bottom of the cabin body; the navigation aiding assembly is arranged on the top of the cabin body. The duckweed assembly can well help the marine navigation aid mark to resist storm waves so as to keep stability.

The invention discloses a marine environment element prediction method based on a principal component analysis-converter fusion model. The method comprises the following steps: performing quality control and data cleaning on a marine environment element data set to realize time-space dimension unification of heterogeneous data; building a prediction model on the basis of a converter network, taking day-by-day data after quality control and data cleaning as a target variable of the model, performing dynamics mechanism analysis based on an observation time sequence of the target variable, and selecting a dynamics prediction factor; dimensionality reduction processing is carried out on the high-dimensional forecasting factors through principal component analysis, and key feature information is effectively extracted; and inputting the optimized features into a converter network for modeling prediction. Compared with a traditional converter model, the average prediction relative error of the fusion model provided by the invention is reduced by 30%, and the prediction precision is remarkably improved. According to the invention, a new thought is provided for improving the marine environment element prediction precision through deep fusion, and more reliable decision support can be provided for the fields of marine navigation safety and the like.

A connector capable of converting a marine navigation light to charging equipment contains: a convertor and a Universal Serial Bus (USB) fixer. The convertor includes multiple conducting portions, a respective one conducting portion is configured to contact with the respective one coupling portion so as to guide a power of the power supply equipment. The respective one convertor also includes at least one electric wire, an end of a respective one electric wire is electrically connected with the respective one conducting portion, and the other end of the respective one electric wire is coupled with the USB fixer. The USB fixer includes a body in which a transformation unit is accommodated, the respective one electric wire is connected on the transformation unit to adjust a voltage, and the transformation unit has multiple power ports configured to supply the power after adjusting the voltage of the power.

The invention discloses a resource-shared dual-band marine navigation radar. The radar is composed of an active antenna unit driven by a servo motor to rotate, a fixed comprehensive electronic case and a terminal placed in a cabin. Wherein the active antenna unit comprises an X-band antenna, an S-band antenna, an X-band four-channel radio-frequency variable-frequency transmitting-receiving assembly, an S-band high-power variable-frequency transmitting-receiving assembly, a five-channel digital transmitting-receiving assembly, a frequency synthesizer and a DBF board. The integrated electronic case is composed of a servo system, an integrated digital processing unit and a secondary power supply, two wave band radars are integrally designed, the height measurement capability of the X wave band radar is improved, the advantages of the two wave bands can be fully utilized, the radar use cost is reduced, the radar target detection range and detection capability are improved, and the product practicability is improved.

The application discloses an Arctic shipping route navigation safety evaluation method and system based on multi-source data fusion and ship adaptability, and relates to the cross technical field of marine navigation safety guarantee, meteorological and hydrological data analysis and intelligent navigation. The method comprises the following steps: collecting multi-source data of the Arctic shipping route, dynamically fusing weights in combination with real-time reliability calculation of the data source after preprocessing and space-time alignment, completing confidence dynamic weighted fusion to obtain comprehensive environmental data; constructing a coupled physical stress model based on the data and inherent parameters of the target ship, introducing ice type and sea current factors to quantify real-time navigation risk, and generating a voyage full-cycle dynamic risk corridor; planning a route based on the risk corridor by using a hybrid heuristic algorithm, and combining a multi-index judgment mechanism with a self-defined weight to realize navigation safety grade judgment and global optimal route output. The application improves evaluation accuracy and ship adaptability, prolongs the dynamic prediction period, realizes global optimal route planning, and has strong operability in decision support.

1. Name of the product in this design: Marine navigation light control panel. 2. Application of this design: Control of ship navigation lights. 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.

A maritime navigation mark management method and system and a storage medium, the method comprising: acquiring and identifying a real-time image of a current navigation mark to obtain a current navigation mark name; matching the current navigation mark name with a preset database to obtain basic information of the current navigation mark; the basic information at least comprises a standard name, a navigation mark type, structural information, a navigation mark height and a preset latitude and longitude; acquiring environmental data of a sea area where the current navigation mark is located, and performing monitoring; the environment data at least comprises weather data, wind condition data, wave height data and water temperature data; according to the monitoring result, sea condition early warning information is issued and displayed; detecting whether a navigation query instruction exists or not in real time, and if yes, acquiring real-time image acquisition information; the real-time image acquisition information comprises a real-time image acquisition position and a real-time image acquisition parameter; calculating the offset distance between the real-time image acquisition position and the current navigation mark according to the real-time image, the real-time image acquisition information, the navigation mark height and the preset longitude and latitude; and generating and displaying a navigation route according to the offset distance.

The invention belongs to the technical field of marine navigation, and discloses a paper electricity chart drawing device and a chart drawing method. The paper and electricity chart drawing equipment comprises a touch control workbench and an electromagnetic pen, the touch control workbench comprises a control main board, an electromagnetic touch control module and a display screen, after a paper chart is laid on the display screen, the paper chart and an electronic chart are displayed in an overlapped mode, when the electromagnetic pen is adopted to leave plotting handwriting on the paper chart, the electromagnetic pen sends a signal to the electromagnetic touch control module, and the control main board controls the electromagnetic touch control module to display the plotting handwriting. The electromagnetic touch module receives a signal of the electromagnetic pen and transmits the signal to the control mainboard, the control mainboard sends image data to the display screen, and then plotting handwriting on the paper chart is electronically displayed on the electronic chart, so that the operation habit of an original paper chart is reserved, synchronous drawing of the paper chart and the electronic chart can be achieved, and the drawing efficiency is improved. The workload of independently drawing the paper chart and the electronic chart is greatly reduced, the drawing time is shortened, errors caused by independently drawing the electronic chart are avoided, and the chart drawing accuracy is effectively improved.

To provide a ship operation management system that can recognize a ship based on ship information, and can determine a movement of the ship engaged in marine navigation in a surrounding area including a peripheral situation.SOLUTION: A ship operation management system comprises: a master station ship; an AIS appliance which is provided on the master station ship, and receives AIS information from a target ship equipped with the AIS appliance; an infrared camera 52 provided on the master station ship; a display monitor 54 provided on the master station ship for displaying an image captured by the infrared camera 52; and a personal computer 53 which analyzes the image data from the infrared camera 52. The personal computer 53 comprises a size classification AI determination unit 61 that determines whether a ship exists in the image captured by the infrared camera 52, and determines a size classification from the image of the ship, and the display monitor 54 displays a determination frame, the size classification, and ship information of an AIS-mounted target ship based on the AIS information on the image of the ship that has been determined to be the ship.SELECTED DRAWING: Figure 5