934results 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.

[Problem] To provide a navigation assistance device capable of presenting to a user, in an easy to understand manner, the time until a risk. [Solution] This navigation assistance device comprises: a first acquisition unit that acquires first ship data including the position and velocity of a first ship; a second acquisition unit that acquires second ship data including the position and velocity of a second ship; a specification unit that specifies a risk region in which the risk of the first ship and the second ship approaching each other is greater than or equal to a predetermined value; a calculation unit that calculates the arrival time of the first ship to reach the risk region; and a display unit that displays the risk region and displays the arrival time in association with the risk region.

The invention provides a vibration reduction boat bottom structure and an amphibious boat, and relates to the technical field of amphibious boats. The vibration reduction boat bottom structure comprises a vibration reduction air bag and a macromolecule wear-resisting plate. The damping air bag and the macromolecule wear-resisting plate are located at the bottom of the main hull. The damping air bag is located between the macromolecule wear-resisting plate and the main hull. The vibration reduction air bag is of a cylindrical structure and extends from the stern to the bow of the main hull. The multiple damping air bags are arranged in the left-right direction of the main ship body. The shape of the damping air bag follows the boat bottom molded line of the main boat body. The multiple macromolecule wear-resisting plates are laid in a crossed and stacked mode, and the shapes of the macromolecule wear-resisting plates follow the boat bottom molded line of the main boat body. And the left and right sides of the macromolecular wear-resistant plate are fixed with the left and right sides of the main hull. The problems that a damping system arranged on a traditional wear-resistant layer is poor in damping effect and difficult to maintain can be solved.

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.

Provided are a route planning device and method for sailing safely while avoiding collision between a moving body such as a ship and an obstacle such as another ship. The present invention is provided with: a planned route acquisition unit that acquires planned route information indicating a planned route of a moving body; a moving body information acquisition unit that acquires moving body information including a moving body position and a moving direction; an obstacle information acquisition unit that acquires obstacle information including a position and a movement direction for obstacles in the vicinity of the moving body; a voyage avoidance path acquisition unit for acquiring voyage avoidance path information different from the planned route by using the voyage avoidance starting point as a starting point; a collision risk value calculation unit that calculates a collision risk value between the moving body and each obstacle on the basis of the moving body information and the obstacle information; the maximum collision risk value comparison part is used for calculating and comparing maximum collision risk values for the planned route and the voyage avoiding path respectively; and a route change signal output unit which, when the maximum collision risk value of the voyage avoidance path is lower than the planned route, instructs a route change signal to change the voyage avoidance path.

An automatic positioning system and a method for automatically moving a vessel with the automatic positioning system are provided. [Solution] A method according to the present invention is a method for automatically moving a vessel relative to a stored lateral reference point on an external object, comprising the steps of receiving, by a processor control unit, lateral reference point information representing a stored lateral reference point on the external object, automatically moving the vessel to a lateral position relative to the stored lateral reference point on the external object, stopping the vessel at a default distance relative to the external object, and maintaining the vessel at a default distance relative to the external object.

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

The invention relates to the technical field of renewable energy sources, and discloses an ocean photovoltaic power generation floating type device, which comprises a plurality of groups of base body mechanisms used for a main body frame of a structure and playing a role in connecting each part structure; the multiple sets of anti-collision type buoy mechanisms are arranged on the periphery of the base body mechanism, each anti-collision type buoy mechanism is composed of an internal buoy and an external anti-collision box, the buoys provide main buoyancy for the structure, and the anti-collision boxes are used for preventing the structure from being collided and damaged; the multiple sets of supporting mechanisms are arranged on the upper side of the base body mechanism and used for supporting photovoltaic pieces. The spraying mechanisms are arranged on the upper side of the base body mechanism and used for assisting in cleaning the photovoltaic part. A worker can conveniently adjust the angle of the photovoltaic panel through the supporting mechanism to adapt to photovoltaic panels of different sizes, and the power generation efficiency and universality are improved; the anti-collision box and other structures can buffer external force, store cleaning fluid, prevent collision, keep stability, reduce loss and prolong the service life; the high-pressure pump and the rolling brush are used for cleaning the photovoltaic panel, and the light transmittance and efficiency are guaranteed.

[Problem] To provide a vessel monitoring device that allows a user to intuitively and easily recognize information on the possibility of a collision. [Solution] A vessel maneuvering support device 1 comprises a risk map generation unit 51 and a display data generation unit 61. When the position, which is on a planned course estimated for a second vessel and determined to evaluate the risk of a first vessel colliding with the second vessel, is called a risk evaluation position assuming veering of the first vessel among a plurality of vessels, the risk map generation unit 51 estimates the possibility of collision between the first vessel and the second vessel at a position other than the risk evaluation position, and generates a risk map showing the distribution of the estimated possibility of a collision. The display data generation unit 61 generates display data for displaying the risk map.

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.

A shore operation ship monitoring device for monitoring a shore operation ship of a ship is provided with: a collision level calculator for obtaining a shore docking distance, which is the distance from the ship to a quay wall, and a shore docking speed, which is the speed of the ship in the shore docking direction, and calculating a collision level, which is an index of the possibility of collision of the ship to the quay wall, using the shore docking distance and the shore docking speed; and a collision likelihood determiner that determines whether there is a likelihood that the ship collides with the quay wall on the basis of the collision level. The collision level is a function with the docking distance and the docking speed as variables.

The invention discloses a fender buffering structure of a polar icebreaker. The fender buffering structure comprises a fender buffering structure body composed of an outer-layer steel structure and an inner-layer elastic structure. The outer-layer steel structure comprises a fender top plate, fender side plates, fender front and rear end coamings, end limiting cushion blocks, middle limiting cushion blocks and inner limiting toggle plates, the fender top plate, the fender side plates, the fender front and rear end coamings and the hull outer plate form a closed structure, the end limiting cushion blocks are arranged at the two ends of each fender side plate, the middle limiting cushion blocks are arranged in the middles of the fender side plates, and the inner limiting toggle plates are arranged in the middle of the fender side plates. A plurality of internal limiting toggle plates are arranged between the fender side plate and the hull outer plate, and the inner-layer elastic structure is limited through the end limiting cushion blocks, the middle limiting cushion blocks and the internal limiting toggle plates. The device is suitable for ship-ice and ship-ship collision scenes in a polar region complex environment, has a good buffering effect and can provide a good protection effect on a ship body; a fender buffer structure protection area is flexibly arranged according to ship design requirements and functions; and the low-temperature resistance meets the long-term use requirements in a low-temperature environment.

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 utility model provides a catamaran underwater measurement cylindrical array oscillation stopping barrel, which comprises a main body assembly, and the main body assembly comprises a catamaran left sheet body, a catamaran right sheet body, a connecting bridge, a round hole, an oscillation stopping barrel and a rubber buffer shock pad. Firstly, the cylindrical array carries out underwater measurement work through the retracting and releasing assembly, when the cylindrical array needs to be retracted to the catamaran, the cylindrical array is pulled upwards through the retracting and releasing assembly, the cylindrical array can gradually get close to a connecting bridge of the catamaran in the retracting process, and the cylindrical array can be retracted to the catamaran through the rubber buffering shock pad in the oscillation stopping barrel. The rubber buffering shock pads are used for buffering collision between the cylindrical array and the oscillation stopping barrel, so that the cylindrical array is extruded and buffered by the rubber buffering shock pads when being recycled into the oscillation stopping barrel, and impact force and vibration of collision are reduced; in this way, direct collision between the cylindrical array and the catamaran left sheet body and between the cylindrical array and the catamaran right sheet body is avoided, and therefore the structural safety of the cylindrical array, the catamaran left sheet body and the catamaran right sheet body is protected.

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.

The utility model discloses an intelligent anti-collision navigation buoy, which relates to the field of river navigation, comprises a lamp cabin, and is characterized in that the lamp cabin is a cylinder, a battery is mounted at the top of the lamp cabin, a lamp tube is fixedly mounted at the top end in the lamp cabin and corresponds to the battery, the lamp tube is hung in the center in the lamp cabin, and the lamp tube is connected with the lamp cabin. A clamping jaw structure is fixedly arranged on the outer cylindrical face of the lamp cabin, the clamping jaw structure is slidably connected with a clamping jaw, the signboard is convenient to replace, a light-emitting component is located in the main body, contact with the outside is reduced, the service life is prolonged, the lower end air cabin is designed in a split mode, and the performance of being prevented from being collided and frozen and extruded is improved.

To provide an information processing system for safely and efficiently avoiding obstacles while navigating. [Solution] The information processing system disclosed herein includes a control unit that performs information processing to avoid obstacles and navigate to a destination, and the control unit performs a parameter determination process that determines parameters related to the distance the ship will move away from an obstacle when avoiding the obstacle, based on obstacle information including position information and size information of the obstacle on or underwater.