714results about "Collision prevention" patented technology

The present disclosure relates to a method and an apparatus of generating a surround view monitoring (SVM) image. The method includes: obtaining installation information of an actual camera installed on a ship; setting a virtual camera to orient toward a ground plane perpendicularly within a world coordinate system; calculating a conversion relationship between the virtual camera and the actual camera, based on the installation information of the actual camera; generating the SVM image based on the calculated conversion relationship; and controlling the ship based on the generated SVM image.

A method for shoreline segmentation in complex environments based on the perspective of an unmanned surface vessel is provided. A visible light image, a thermal infrared image and a raw radar echo image of a shoreline are obtained. The visible light image and the thermal infrared image are subjected to fusion and feasible region segmentation to obtain an all-weather two-dimensional image information of the shoreline, and an echo image including tiny features is obtained based on the raw radar echo image. An extraction region is constrained and shoreline features are enhanced based on the all-weather two-dimensional image information and the echo image to obtain a multi-feature point cloud dataset for shoreline segmentation.

A navigation route planning apparatus includes processing circuitry configured to receive a planned route indicating a route and a current course direction of a movable body, receive movable body information that includes a position, a travelling direction, and a speed of the own ship, receive obstacle information that includes a position, a traveling direction, and a speed of an obstacle, determine a collision risk value associated with the planned route along the current course direction based on the movable body information and the obstacle information, and determine whether the movable body requires to at least one of evade the planned route and continue traversing on the planned route based on the collision risk value.

The invention discloses a maneuvering fish searching platform system and a maneuvering fishing method.The maneuvering fish searching platform system is characterized in that one or more of a marching power assembly, a fish luring device and a fish searching device are detachably integrated on a buoyancy body assembly, the buoyancy body assembly can correspondingly march on water, and meanwhile when the fish searching device detects that a fish school appears within a preset distance, the buoyancy body assembly is driven to move back and forth; the fish luring device starts a fish luring working condition, so that a fish school is close to the fish luring device and correspondingly gathers, and the functions of flexibly and visually searching and luring the fish are realized, so that the device has the characteristics of flexibly and efficiently searching and luring the fish by adding the maneuvering function, conditions are provided for follow-up net fishing or rod fishing, and the fish luring efficiency is improved. And through the method, multiple persons can participate in fish searching and fish luring activities, so that the characteristic of enjoying fishing fun is achieved, the interestingness of the activity process is increased, and the method has a better application prospect and a higher popularization value.

The invention discloses a novel floating photovoltaic water level sensing automatic adjusting device, and relates to the technical field of floating photovoltaic structures.The novel floating photovoltaic water level sensing automatic adjusting device comprises a floating surface table, a photovoltaic frame is arranged above the floating surface table, a photovoltaic panel is installed above the photovoltaic frame, and an outer frame ring is fixedly connected to the outer side face of the floating surface table; a floating surface adjusting mechanism is arranged in the floating surface table, a water level sensing mechanism is arranged on the bottom surface of the floating surface table, a collision protection structure is arranged above the outer frame ring, a vertical supporting plate is fixedly connected to the bottom end of the outer frame ring, a bottom ring frame is fixedly connected to the bottom end of the vertical supporting plate, and a floating barrel is arranged on the outer side of the bottom ring frame; according to the floating platform, buoyancy and support are provided for the bottom of the inclined floating platform through overturning of the arc-shaped floating box, so that the inclination angle of the floating platform during inclination is reduced, the stability of the floating platform structure on the water surface is improved, and the situation that the power generation efficiency of a photovoltaic panel on a photovoltaic frame is affected due to large-angle shaking of the floating platform is prevented.

According to an embodiment, there is provided a control method for autonomously berthing a ship including obtaining ship state information and berth information, setting a DP point; an approaching operation of controlling the ship to approach the DP point; and a dynamic positioning operation of adjusting a location and posture of the ship based on an error rate between the DP point and a current location of the ship.

A navigation planning system (1) is provided. The system configured to acquire a planned route indicating a navigation planning route of a movable body (200) on a water, acquire movable body information including a position, a moving direction, and a speed of the movable body, and acquire obstacle information including a position, a moving direction, and a speed of a plurality of obstacles located in a surrounding area of the movable body (200). Further, the system calculates a collision risk value indicating a risk level of collision between the movable body and an obstacle from the plurality of obstacles based on the movable body information and the obstacle information, and determines a necessity of evasion based on comparing the collision risk value with a threshold value. Finally, the system is configured to set an evasion route different from the planned route when the necessity of the evasion is determined.

The invention discloses an overwater mobile platform which is formed by compounding a plurality of buoyancy body assemblies of hollow structures through stress structure assemblies, the load distribution of the overwater mobile platform can be effectively optimized, the stability and reliability of the overwater mobile platform can be improved, and meanwhile the buoyancy and the anti-sinking capacity of the overwater mobile platform can be improved through anti-sinking assemblies. Therefore, by means of the combined design of the buoyancy body assembly of the hollow structure, the stress structure assembly, the anti-sinking assembly and the advancing power assembly, the water moving platform has the advantages of being high in buoyancy, high in safety and multifunctional.

The present disclosure provides a ship monitoring system capable of visualizing a risk of a collision or an approach in a width direction perpendicular to a heading of another ship. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry specifies a risk range where a risk value indicative of a risk of a collision between the first ship and the second ship is above a threshold among an estimated course of the second ship, based on a position of the first ship and a position of the second ship at each timing, that are estimated from the first ship data and the second ship data, when assuming that the first ship changes a course to an arbitrary direction and crosses the estimated course of the second ship. The processing circuitry further display a polygonal OZT (Obstacle Zone by Target) having vertexes at least comprised of a rear end and a front end of the risk range, and a representative point of the first ship located at a position corresponding to the rear end of the risk range.

Disclosed is an intelligent ship navigation path generation method based on visual and spatial semantic enhancement for an aid to navigation, including: identifying the aid to navigation around a ship and determining a current position of the ship; obtaining a navigable area of the ship based on semantic information of the aid to navigation; removing portions that overlap with high risk areas from the navigable area; selecting a next position of the ship from the navigable area; and repeating the above steps to make real-time corrections to the ship's navigation path.

A method of calculating a collision risk of a ship according to an embodiment of the present disclosure may include: calculating an available velocity area based on maneuvering performance of a host ship; calculating a velocity obstacle area where there is a possibility of collision between an object and the host ship; and calculating a collision risk based on at least one of the available velocity area, the velocity obstacle area, and a preset weight.

The utility model discloses an unmanned ship for underwater topographic surveying and mapping, which belongs to the technical field of underwater topographic surveying and mapping and comprises a ship body divided into a bow end and a stern end. The bow end comprises a first flow guide plate and a second flow guide plate, and the first flow guide plate and the second flow guide plate are connected to the two sides of the hull respectively. And one side of the top of the ship body is connected with a cutting device capable of cutting. The device has the beneficial effects that by arranging the first flow guide plate, the second flow guide plate, the flow guide groove and the cutting device, aquatic plants on the traveling path of the unmanned ship are cut, the situation that the aquatic plants are wound at the bow end of the ship body and affect traveling of the ship body to conduct underwater surveying and mapping operation is avoided, the cut aquatic plants can be guided to the two sides of the ship body, and influences are reduced; by arranging a supporting rod, a pushing plate, a sliding frame, an electric pushing rod and the like, the ship body is blocked when encountering a shoal during traveling, and the ship body is pushed to retreat to enter the water surface when encountering stranding, and traveling operation is conducted again.

Convertible bimini top systems are for a marine vessel having a deck and being situated in a body of water. The systems have a bimini top having a cover configured to extend over the deck, an actuator configured to raise and lower the cover relative to the deck, a controller communicatively coupled to the actuator, the controller being configured to operate the actuator to raise and lower the cover relative to the deck, and a sensor communicatively coupled to the controller, the sensor being configured to sense an obstruction proximate to the marine vessel. The controller is configured to automatically operate the actuator to lower the cover when the sensor senses the obstruction proximate to the marine vessel. Methods are for controlling the convertible bimini top to lower the cover relative to the deck based on the existence of the obstruction.

A method for a collision avoidance system of a host marine vessel, and to updating vessel classifications and navigational statuses of marine vessels.

Techniques are disclosed for systems and methods to provide navigation control and / or docking assist for mobile structures. A navigation control system includes a logic device, one or more sensors, one or more actuators / controllers, and modules to interface with users, sensors, actuators, and / or other modules of a mobile structure. The logic device is configured to receive navigation control parameters from a user interface for the mobile structure and perimeter sensor data from a perimeter ranging system mounted to the mobile structure. The logic device determines navigation control signals based on the navigation control parameters and perimeter sensor data and provides the navigation control signals to a navigation control system for the mobile structure. Control signals may be displayed to a user and / or used to adjust a steering actuator, a propulsion system thrust, and / or other operational systems of the mobile structure.

The navigation assist system is provided with: a movable body data interface configured to acquire movable body data including position and speed of a movable body moving on water; a target data interface configured to acquire target data including the position and the speed of a plurality of targets existing respectively around the movable body; an avoidance target selector configured to select one or the plurality of targets having collision risks of colliding with the movable body; and an evasion route generator configured to generate an evasion route of the movable body based on the selected targets.

The present invention relates to the technical field of water conservancy monitoring, and specifically to an intelligent water conservancy monitoring device, comprising a floating body, a mounting seat, an anchor chain, a sinker and a connecting column, wherein the mounting seat is fixedly mounted on the bottom of the floating body, the anchor chain is fixedly connected to the bottom of the mounting seat, the sinker is fixedly connected to the anchor chain, the connecting column is fixedly mounted on the upper surface of the floating body, a mounting plate is fixedly mounted on the top of the connecting column, a power storage system is fixedly mounted on the upper surface of the mounting plate, a photovoltaic panel is fixedly mounted on the surface of the power storage system, and the intelligent water conservancy monitoring device can avoid direct collision with a ship through a protective component, and can prevent aquatic organisms from climbing, thereby increasing the service life of the device, and cooperates with a cleaning component, so that when the device is tilted due to the influence of wind and waves, the counterweight magnet will drive the limiter to move, and finally the gear ring drives the cleaning member to rotate around, so as to clean the surface of the floating body.

The invention discloses an unmanned ship for water pollution treatment, which relates to the technical field of sewage treatment and comprises an unmanned ship body, an unmanned ship head is arranged on one side of the unmanned ship body, a ship body cabin door is arranged at the tail of the unmanned ship body, a drainage mechanism is arranged on one side of the tail of the unmanned ship body, and a cleaning mechanism is arranged in the unmanned ship body. A photovoltaic panel is arranged on the top of the unmanned boat body, driving mechanisms are arranged on the two sides of the unmanned boat body, a flow guide mechanism is arranged on one side of a boat head of the unmanned boat body, an anti-collision mechanism is arranged on one side of the flow guide mechanism, and a detection mechanism is arranged in the unmanned boat head. When a trigger assembly in the anti-collision mechanism is collided, the trigger assembly deflects to switch on a conductive structure, then a motor is driven to drive a flow guide assembly to deflect and recover the flow guide assembly, collision damage is avoided, the water quality of a water area is detected through a water quality detection instrument and a probe cleaning assembly, and therefore the practicability of the device is greatly improved.

A navigation assistance system using a plurality of sensors according to an aspect of the present disclosure includes a display configured to provide a monitoring image, a sensor unit including at least one sensor, a memory in which at least one program is stored, and at least one processor configured to execute the at least one program, wherein the at least one processor obtains image frame information of an object using a first sensor, calculates information about the object using a second sensor, calculates a risk of collision between a host ship and the object by fusing the image frame information of the object and the information about the object, and determines an avoidance path based on the calculated collision risk.

A navigation assistance system using a plurality of sensors according to an aspect of the present disclosure includes a display configured to provide a monitoring image, a sensor unit including at least one sensor, a memory in which at least one program is stored, and at least one processor configured to execute the at least one program, wherein the at least one processor obtains image frame information of an object using a first sensor, calculates information about the object using a second sensor, calculates a risk of collision between a host ship and the object by fusing the image frame information of the object and the information about the object, and determines an avoidance path based on the calculated collision risk.

A system comprising one or more processing circuitries configured to: obtain a plurality of images of at least one marine object, acquired by an imaging device of a marine vessel; use at least some of the plurality of images to determine: data Dbearing informative of a direction of the at least one marine object, and data Dimension informative of one or more dimensions of the at least one marine object in the at least some of the plurality of images; and to use data Dbeanng and data Dimension to determine at least one of: data informative of a collision risk between the marine vessel and the marine object, data informative of a closest point of approach between the marine vessel and the at least one marine object, or data informative of a time to the closest point of approach between the marine vessel and the at least one marine object.

The invention provides an offshore wind power flexible anti-collision device giving consideration to wave energy power generation and ship collision energy absorption, and belongs to the technical field of offshore power generation equipment. The offshore wind power flexible anti-collision device giving consideration to wave energy power generation and ship collision energy absorption comprises a fixing structure, a flexible air bag, an airflow pipeline, a PTO system, a control system and an inflation rebound structure; the fixing structure is located on the lower side of the offshore wind power pile winding platform and around the single pile foundation. The flexible air bags are distributed on the fixing structure in an annular array mode, the flexible air bags are in orange petal shapes, and an air hole is formed in the top of each flexible air bag; the lower end of the airflow pipeline is connected with an air hole in the top of the flexible air bag, the airflow pipeline vertically and upwards penetrates through the pile winding platform, an air turbine is arranged in the airflow pipeline, and the top is connected with a PTO system. The PTO system is arranged at the upper part of the pile winding platform; an inflating device of the inflating rebound structure is arranged at the upper part of the pile winding platform; the problems that the anti-collision performance is poor, and the device cannot be damaged due to multiple collisions can be solved.

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.

The utility model discloses an anti-storm anti-toppling buoy which comprises a buoy body and a balance assembly, and the top of the buoy body is of a cavity structure. The balance assembly comprises a balancing weight, a fixing rod, a hinge rod and a bearing plate. The bearing plate is located in a cavity of the buoy body and is in sliding connection with the buoy body, the multiple balancing weights are located in the anti-collision support and are in sliding connection with the anti-collision support, one end of the fixing rod is fixed to the balancing weights, the other end of the fixing rod is hinged to one end of the hinge rod, and the other end of the hinge rod is hinged to the bearing plate; through the arrangement of the balance assembly, seawater is poured into the bearing plate of the buoy body through stormy waves, the gravity of the seawater is utilized to drive the bearing plate to move downwards, the balancing weight is driven to move towards the outer side of the buoy body, the gravity of the outer side of the buoy is increased, and the outer side part of the buoy can be supported by more buoyancy; the impact of large storm waves on the inner side of the buoy is reduced, so that the whole buoy is kept stable, and the buoy is balanced.

Floating body device, characterized in that it comprises a floating body main body (1) and a detection sensor (2), wherein the detection sensor (2) is used for detecting obstacle information around the floating body main body (1), wherein the detection sensor (2) is arranged at the bottom of the floating body main body (1) or its side surface such that the detection sensor (2) is deeper than the water surface, wherein the vertical distance H of the detection sensor (2) relative to the water surface 0 <H≤13 cm beträgt, wobei, wenn auf der Wasseroberfläche vor dem Schwimmkörper-Hauptkörper (1) in dessen Bewegungsrichtung eine Rohrleitung vorhanden ist, der Schwimmkörper-Hauptkörper (1) eine Ausweichaktion ausführt, um der Rohrleitung auszuweichen.

The invention relates to the technical field of ship guardrails, in particular to a multifunctional guardrail for ships, which comprises a fixed base, stand columns are symmetrically arranged on the fixed base, a fixed box is connected to the opposite sides of the stand columns, a height adjusting assembly is arranged in an inner cavity of the fixed box, and moving grooves are formed in the outer sides of the stand columns. An anti-collision device is movably arranged between the moving grooves in the two sides, connecting assemblies are arranged on the two sides of the fixed base, containing grooves are symmetrically formed in the two ends of the bottom of the fixed base, moving assemblies are arranged in the containing grooves, in addition, the guardrail side plates and the supporting plates can be unfolded to form a temporary rest platform, and practicability and safety are both achieved. The ship guardrail integrates height adjustment, anti-collision buffering, convenient movement and multifunctional expansion, and the adaptability and the use efficiency of the ship guardrail are remarkably improved.

To provide an information processing system for safely and efficiently navigating while avoiding an obstacle.SOLUTION: An information processing system includes a control unit for executing information processing to navigate to a destination while avoiding an obstacle, the control unit executing parameter determination processing for determining a parameter relating to a distance that own ship moves away from the obstacle when avoiding the obstacle, based on obstacle information including position information and size information of the obstacle on the water or underwater.SELECTED DRAWING: Figure 1

A target assignment and route planning method for a multi-agent unmanned surface vehicle. The method comprises: sending task information to a task assigner (S1); performing screening to obtain targets to be assigned and unmanned surface vehicles to be subjected to assignment, and assigning one target to each of the unmanned surface vehicles on the basis of the comprehensive distance between the target and the unmanned surface vehicle, which comprehensive distance is obtained by taking a navigation distance and a steering penalty into consideration (S2); a route planner generating as a navigation route a smooth waypoint sequence for the matched unmanned surface vehicle and target (S3); and during navigation, a navigation controller constructing a speed optimization model on the basis of cooperative obstacle avoidance and sea area constraint requirements, and controlling, in real time, the unmanned surface vehicle to navigate along the waypoint sequence (S4).

The present disclosure relates to a ship safety control method and ship safety control system. According to an embodiment of the present disclosure, the ship safety control method may include determining a sea condition in an area, in which a ship is located, based on a video feature of a first video of a ship situation, preprocessing the first video based on the sea condition, designating a control area in a second video based on the second video generated through the preprocessing, and detecting at least one of an object and occurrence of an event within the control area.

The present invention discloses a semi-submersible anti-collision offshore charging pile, comprising: the upper part of the charging pile body is in the shape of a positive cone, the lower part is in the shape of an inverted cone, and an air bag is arranged around the outer periphery of the junction edge of the upper positive cone and the lower inverted cone of the charging pile body; a compressed gas chamber with a ring-shaped cross section is arranged inside the upper positive cone of the charging pile body, and the compressed gas chamber is connected to the air bag through an air pump, and the air pump is arranged at the lower part of the compressed gas chamber, and the air pump controls the floating state of the charging pile body by sucking or filling the air bag with gas. According to the present invention, a ring-shaped air bag is arranged around the outer periphery of the charging pile, which solves the floating problem of the offshore charging pile while providing anti-collision protection for the offshore charging pile to avoid direct collision between the charging pile body and the ship; when the offshore charging pile is connected to the new energy ship, the gas in the air bag is extracted to reduce the volume to a certain extent until the offshore charging pile is suspended below the sea surface to avoid collision with the new energy ship.