31results about "Navigational route marking" patented technology

A method for automated navigational marker detection and association in maritime applications includes providing a camera system equipped with one or more red-green-blue (RGB) cameras for capturing visual data of a surrounding maritime environment in real-time, and then providing a computing unit comprising a neural network-based object detector, a projection mechanism module, and a GPS mapping and chart data integration module. Next, providing a database comprising pre-existing chart data of navigational markers. Next, capturing visual data of the surrounding maritime environment using the camera system. Next, processing the visual data by the computing unit using the neural network-based object detector to identify navigational markers. Next, projecting pixel positions of detected navigational markers into a three-dimensional (3D) coordinate system. Next, integrating the projected positions of the detected navigational markers into a navigational map, and then cross-referencing the projected positions of the detected navigational markers with pre-existing chart data of navigational markers for the same location to enhance navigational accuracy and reliability.

A marine vessel smart pole includes a wireless transmitter configured or programmed to perform a communication function to communicate with a marine vessel and a communication object other than the marine vessel, and a position information function to provide a position of the marine vessel smart pole to the marine vessel or a server of a port facility.

To provide a waterway planning device which can set waypoints more accurately and efficiently in setting a waterway of a marine vessel.SOLUTION: A waterway planning device includes: a chart data receiving section for receiving chart data; an already-set waypoint receiving section for receiving positions of already-set waypoints of a waterway; a potential waypoint receiving section for receiving a provisional position of a potential waypoint which is located by moving an undetermined position that a movable body should pass, as a next waypoint following a head waypoint located at a tip end among the already-set waypoints; and a position specifying section for outputting an activation signal when an angle formed by a first bar connecting a tip end waypoint position to a provisional position of a potential waypoint, and a second bar connecting the provisional position of the potential waypoint to a position of one target, is equal to a predetermined angle.SELECTED DRAWING: Figure 2

The invention relates to a light telescopic anti-collision and anti-wave cofferdam for inland waterway construction. The light telescopic anti-collision and anti-wave cofferdam comprises an anti-collision system and a cofferdam body. The anti-collision system comprises anti-collision columns, vertical supports and connecting pieces, the upper portions of the vertical supports are connected with the upper portions of the corresponding anti-collision columns through first connecting pieces, the adjacent anti-collision columns are connected through second connecting pieces, the adjacent vertical supports are connected through third connecting pieces, and stable anti-collision lattice units are formed. The cofferdam body is formed by connecting a plurality of cofferdam units, and each cofferdam unit comprises a panel and a transverse support which are arranged from the upstream face to the downstream face. The vertical supports are tightly attached to the downstream face of the cofferdam body. The panel comprises an outer side plate and a middle inserting plate arranged in the outer side plate, and the middle inserting plate can move up and down in the vertical direction relative to the outer side plate. The anti-collision, supporting and stabilizing effects of the single-layer light cofferdam can be improved, the height of the cofferdam can be flexibly adjusted, meanwhile, clay does not need to be filled in the middle, and the cofferdam is detachable and more economical and environmentally friendly.

[Problem] To provide a channel marker identification device that can increase the identification accuracy for marker contents. [Solution] A channel marker identification device provided with: a first acquisition unit for acquiring a first image that includes a buoy from a camera installed in a ship; a first identification unit for identifying the position of the buoy in the first image; a second acquisition unit for acquiring a second image having a higher resolution than that of the first image and corresponding to a partial area of the first image which includes the position of the buoy; and a second identification unit for identifying marker contents of the buoy from the second image.

Systems and methods for generating a phase-resolved ocean wave forecast with ensemble based data assimilation are disclosed. An example method includes receiving radar data corresponding to an ocean surface, and determining a surface elevation and a surface potential of a portion of the ocean surface. The example method also includes generating an ensemble of perturbed ocean surface data, and applying a phase-resolved nonlinear wave model to the ensemble of perturbed ocean surface data to generate a set of forecast ocean surface data. The example method also includes receiving a subsequent set of radar data corresponding to the ocean surface, and determining a subsequent surface elevation and surface potential of the portion of the ocean surface. The example method also includes combining, by applying an ensemble Kalman filter, the set of forecast ocean surface data with the subsequent surface elevation and surface potential to generate a phase-resolved ocean wave forecast.

[Problem] To provide a sea mark identification device capable of distinguishing a port mark and a starboard mark regardless of the location of a ship. [Solution] A sea mark identification device comprises: an acquisition unit that acquires an image generated by a camera installed on a ship; a mode identification unit that identifies whether the mode of a lateral buoy contained in the image is a first mode or a second mode; a country determination unit that determines a country to which a location detected by a location detection unit for detecting the location of the ship belongs; and a port / starboard determination unit that, on the basis of predetermined corresponding relationships indicating whether the first mode and the second mode correspond to a port sign or a starboard sign in each country, determines whether the mark content of the lateral buoy is a port mark or a starboard mark, from the mode of the lateral buoy and the determined country.

The present invention relates to the field of underwater robot technology, and in particular to a foldable and unfoldable under-ice road sign structure. It comprises a soft QR code cloth, a multi-link mechanism, a main shaft and a stop handle, wherein the outer side of the multi-link mechanism is covered with a soft QR code cloth, and the multi-link mechanism has the function of folding and unfolding; the main shaft passes through the center of the multi-link mechanism, and the main shaft provides a driving force for the folding and unfolding of the multi-link mechanism by rotating; the stop handle can be arranged on the outer side of the main shaft in an axially relative sliding manner, the stop handle is positioned and connected to the multi-link mechanism, and the stop handle is used to be fixed to the ice surface. The present invention has a compact structure and a small folded volume. It can pass through a narrow ice hole and realize folding and unfolding under the ice, realizing the deployment and recovery of road signs under the ice, greatly reducing the requirements for the size of the ice hole, reducing the workload of on-site ice hole excavation, and reducing the difficulty of the supporting equipment of the under-ice robot operating on the ice surface.

A system and method of providing navigational routing paths through inshore and nearshore coastal areas that include surveyed depth information and visual indications of the suitability of such paths based on particulars of the user's boat and preferences are presented. Adjustments to both an indication of the depth and the suitability of each segment of the paths are provided. Manual input of local water level observations or tide data from local tide stations may be used for such adjustments. Adjustments may be applied locally or globally, and may be provided dynamically based on changing tide information over the travel time needed to reach distant segments along the navigational routing path. Such tide information is also used to adjust contour and depth area data displayed on bathymetric contour maps on which such navigational routing paths are displayed.

An optimal route derivation server configured to derive an optimal route of a ship includes a storage unit configured to store marine data including winds, wave heights, and currents by matching the marine data with sailing data at each time point and each location included in the sailing data of each sailing obtained from an Automatic Identification System installed on a ship, a corrected ship speed derivation unit configured to derive a first corrected ship speed by excluding an influence of currents from a speed of the ship for each sailing, a second corrected ship speed by considering an influence of winds on the first corrected ship speed at each location, and a third corrected ship speed by considering an influence of waves on the first corrected ship speed at each location, a speed down curve derivation unit configured to derive a first speed down curve related to winds and a second speed down curve related to waves based on a basic speed, the second corrected ship speed and the third corrected ship speed of the ship, and a route determination unit configured to derive an optimal route of the ship by using a Speed Reduction Algorithm to which the first speed down curve or the second speed down curve is applied.

The present disclosure provides an autonomous cruising system capable of improving an accuracy of identifying description of a sign. The autonomous cruising system includes processing circuitry. The processing circuitry acquires a first image including a buoy from a camera installed in a ship. The processing circuitry identifies a position of the buoy inside the first image. The processing circuitry acquires a second image corresponding to a partial area of the first image including the position of the buoy, and the second image is higher in resolution than the first image. The processing circuitry identifies description of a sign of the buoy based on the second image.

The optimal route derivation server, which derives an optimal route for a ship, includes: a storage unit, which matches and stores ocean data including wind, wave height, and ocean current for each time and position included in operation data for each operation obtained from an automatic identification device installed on the ship; a corrected ship speed derivation unit, which derives a first corrected ship speed by eliminating the influence of ocean current from the speed of the ship for each operation, and derives a second corrected ship speed that takes into account the influence of wind at each position for the first corrected ship speed, and a third corrected ship speed that takes into account the influence of waves at each position for the first corrected ship speed; a speed reduction curve derivation unit, which derives a first speed reduction curve due to wind and a second speed reduction curve due to waves based on the basic speed of the ship, the second corrected ship speed, and the third corrected ship speed; and a route determination unit, which derives an optimal route for the ship by using a ship speed reduction algorithm to which the first speed reduction curve or the second speed reduction curve is applied.

The application relates to a bridge remote anti-ship collision device for pipeline avoidance and a construction method, aiming at the problems of the existing technology, such as the layout limitation under the scene of pipelines near the bridge, the risk of secondary collision with the bridge and the like, a collaborative protection system of remote buffer energy absorption and linkage warning and blocking is constructed, and double goals of pipeline avoidance and bridge anti-ship collision are achieved; and the device comprises: a remote anti-collision facility arranged outside the pipeline protection range, a segmented linkage chain system connecting the anti-collision facility and the bridge, a multi-dimensional collaborative warning system and an intelligent monitoring module; wherein the protection pile group forms an overall force structure through the connecting beam, the elastic buffer hinge accurately matches the ship impact force, and the intelligent monitoring realizes real-time state early warning. The application has the advantages of simple structure, convenient construction, intelligent operation and maintenance, and can be widely applied to the anti-ship collision engineering of the bridge crossing the waterway.

The utility model discloses a multistage buffering energy consumption type bridge anti-collision device which comprises a pier and an anti-collision mechanism, embedded sleeves are embedded in the periphery of the inner wall of the pier, an installation frame is installed on the outer walls of the embedded sleeves, the two ends of the inner wall of the installation frame are connected with fixing rods through screws, and the anti-collision mechanism is welded to the outer wall of the installation frame. According to the multi-stage buffering energy dissipation type bridge anti-collision device, through the arrangement of the anti-collision mechanism, when the device is used, if a passing ship collides with a bridge pier, impact energy is absorbed through combination of compression deformation generated under the action of a fiber energy absorption composite material plate and a rubber buffering block in the anti-collision mechanism; the fiber energy-absorbing composite material plate has the advantages that the fiber energy-absorbing composite material plate can absorb kinetic energy with soft and hard, safety of bridge piers, ships and personnel is protected, meanwhile, when sight is not good at night, the noctilucent warning stickers outside the fiber energy-absorbing composite material plate can give out noctilucent warnings to passing ships, and therefore the accident probability of ship collision is reduced.

The utility model discloses an adjustable assembly type shore mark which comprises a shore mark assembly, a conical top mark is detachably connected to the top of a spherical shore mark, and the spherical shore mark is detachably connected to the top end of a mark post; the supporting assembly and the C-shaped sleeve can slide in the axial direction of the marker post, the outer side of the C-shaped sleeve is fixedly connected with three sets of first fixing bases distributed in an annular array mode, the first fixing bases are rotationally connected with one ends of connecting rods, the other ends of the connecting rods are rotationally connected with second fixing bases, the second fixing bases are fixedly connected with the base, and a plurality of fixing holes are formed in the base. According to the utility model, after the nut is loosened, the height of the marker post is adjusted and the shore mark is adjusted to a proper height, the nut is locked and the marker post is fixed, the assembly is simple, a multi-section rod for realizing height adjustment is simplified into the marker post and the fixed part, and the fixed part adopts a tripod structure, so that the flexibility and the adjustability of the structure are improved; and the wind resistance and the overall stability of the shoremark are improved.

Techniques are disclosed for systems and methods for video based sensor fusion with respect to mobile structures. A mobile structure may include at least one imaging module and multiple navigational sensors and / or receive navigational data from various sources. A navigational database may be generated that includes data from the imaging module, navigational sensors, and / or other sources. Aspects of the navigational database may then be used to generate an integrated model, forecast weather conditions, warn of dangers, identify hard to spot items, and generally aid in the navigation of the mobile structure.

A method of providing an electronic map for operating a marine vessel (37), the method comprising the steps of: providing (43) map data, dividing (45) the map data into a first cell and a second cell (39, 39a, 39b) defining a fixed geographical area of the map data, receiving (47) a first measurement from a first sensor of the marine vessel, where the first measurement comprises a first sensor parameter representing a measurement relating to the geographical area of the first cell and / or the second cell, determining (51) a risk assessment of the first sensor parameter, assigning (53) a first risk parameter to the first cell and / or the second cell, operating (55) the marine vessel based on the first risk parameter of the first cell and / or the second cell.

Floating vertical wind profile sensor or LiDAR device (1) comprising a vertical wind profile sensor sensor (8) for sensing a vertical wind profile, a self-propulsion system (24) for propelling the device through a body of water, and a deployable special mark (10), actuatable to switch between a deployed state for identifying the device as a special marker buoy and an undeployed state for identifying the device as a vessel. A controller (22) is provided for switching the device (1) from a vessel mode to a buoy mode when the vessel is anchored. The controller (22) switches the special mark (10) to the deployed state when the device (1) is in the buoy mode. The method involves the floating LiDAR device (1) navigating to a target location and the buoy mode being activated while vertical wind profile data are collected.

A navigation planning system configured to acquire a planned route for a movable body on a water. Further, movable body information and obstacle information an obstacle located in a surrounding area of the movable body is acquired. Subsequently, an evasion route, different from the planned route is acquired. Further, a collision risk indicating a risk of collision between the movable body and the obstacle is calculated based on the movable body information and obstacle information. Furthermore, a maximum evasion route collision risk when the movable body travels on the evasion route and a maximum planned route collision risk the movable body travels on the planned route are obtained. Finally, the navigation planning system outputs a navigation route change signal indicating that the movable body change the planned route to the evasion route when the maximum evasion route collision risk is less than the maximum planned route collision risk.

The present application relates to a kind of water-penetrating type maintaining stable sign ship body, including multiple closed floating bodies, multiple closed floating bodies are connected to constitute ship body main structure;Multiple water-penetrating floating bodies, connect closed floating body and constitute the periphery of ship body main structure;Water-penetrating floating body bottom is provided with water-penetrating hole;First connecting assembly is used for the longitudinal connection between adjacent closed floating body and water-penetrating floating body, between adjacent water-penetrating floating body;Second connecting assembly is used for the longitudinal connection between adjacent closed floating body, between adjacent water-penetrating floating body;Third connecting assembly is used for the connection between adjacent water-penetrating floating body of bow and adjacent water-penetrating floating body of stern;Fixed rudder plate is connected between water-penetrating floating body of stern or between water-penetrating floating body and closed floating body.The sign ship body provided by the present application is assembled by multiple closed floating bodies and water-penetrating floating bodies, when the ship is driven into water, water fills water-penetrating floating body through water-penetrating hole, improves the stability of ship body, when ship body is impacted, damaged floating body is disassembled and repaired, and maintenance cost is saved.

An optimal route derivation server configured to derive an optimal route of a ship includes a storage unit configured to store marine data including winds, wave heights, and currents by matching the marine data with sailing data at each time point and each location included in the sailing data of each sailing obtained from an Automatic Identification System installed on a ship, a corrected ship speed derivation unit configured to derive a first corrected ship speed by excluding an influence of currents from a speed of the ship for each sailing, a second corrected ship speed by considering an influence of winds on the first corrected ship speed at each location, and a third corrected ship speed by considering an influence of waves on the first corrected ship speed at each location, a speed down curve derivation unit configured to derive a first speed down curve related to winds and a second speed down curve related to waves based on a basic speed, the second corrected ship speed and the third corrected ship speed of the ship, and a route determination unit configured to derive an optimal route of the ship by using a Speed Reduction Algorithm to which the first speed down curve or the second speed down curve is applied.

An occupant of a marine vessel enjoys a service that is premised on the presence of precise position information of the marine vessel. A marine vessel smart pole 10 has a communication function of communicating with a marine vessel 22 and a communication object other than the marine vessel 22, and a position information providing function of providing a position of the marine vessel smart pole 10 to the marine vessel 22 or a server 23 of a port facility 24.

The utility model discloses a channel shoremark, which comprises a support column, a shoremark piece, a power assembly and a driving cabin, the top of the shoremark piece is fixedly connected with a convex seat, the power assembly and the driving cabin are respectively integrated on the opposite surfaces of the convex seat and the shoremark piece, and the inner surface wall of the driving cabin is fixedly connected with a driving piece. According to the device, the columnar hollowed-out part is arranged in the shore standard part, the power assembly and the driving bin are fixed to the two sides of the vertical end of the shore standard part correspondingly, normal connection of the power assembly and the driving bin is guaranteed, the output end of the driving part drives the cleaning frame to rotate through the driving shaft, and the cleaning frame is attached to the outer surface wall of the shore standard part to periodically rotate; and the supporting column is fixedly connected with the shore buoy part through the connecting frame of the U-shaped structure, so that it is guaranteed that the position of the shore buoy part is stable, meanwhile, rotation of the cleaning frame is not hindered, and therefore the using stability of the channel shore buoy is improved.

The utility model belongs to the technical field of channel equipment, and particularly relates to a channel warning pile with an anti-collision early warning function, which comprises a fixing plate. A follow-up assembly is arranged on the side wall of the fixing plate. The fixing plate is connected with a warning pile body through a follow-up assembly. The bottom of the warning pile body is fixedly connected with a floating ball; the fixing plate is provided with a buffer assembly through a follow-up assembly. A cleaning assembly is arranged on the side wall of the fixing plate. A warning assembly is arranged on the top of the warning pile body. The buffer assembly comprises a guide groove, an ejector rod, an aluminum plate, a pulling block and a cutter. According to the step, the fixing plate, the warning pile body, the floating ball, the follow-up assembly, the buffering assembly and the warning assembly are arranged to form an anti-collision buffering channel warning pile structure, the function of buffering a ship and the warning pile body is achieved, the situation that the warning pile body is extruded and damaged after being collided is avoided, the safety of the device during use is improved, and the service life of the device is prolonged. The service life of the device is prolonged.

[Problem] To provide a navigation information display device that makes it possible to display navigation information in a more easily understandable manner. [Solution] A navigation information display device comprising: a first acquisition unit that sequentially acquires first geographic coordinates for a first vessel sailing on the sea; a first object generation unit for generating a first object that represents the first vessel and is arranged at first display coordinates corresponding to the first geographical coordinates within a display image displayed on a display unit; a first window generation unit for generating a first window that points to the first object and moves within the display image together with movement of the first object or of a display viewpoint; a specification-receiving unit that receives specification of second display coordinates within the display image from a user; a second window generation unit for generating a second window pointing to the second display coordinates; a second acquisition unit that acquires second geographical coordinates corresponding to the second display coordinates; a navigation information calculation unit that calculates navigation information including the distance between the first geographical coordinates and the second geographical coordinates; and a display control unit whereby control is performed so that the first object, the first window, the second window, and the navigation information are displayed within the display image and the first window and the second window do not overlap.

An autonomous cruising system is capable of discriminating a port sign and a starboard sign without depending on a position of a ship. The system includes processing circuitry that acquires an image generated by a camera installed in a ship. The processing circuitry identifies whether a mode of a lateral buoy included in the image is either a first mode or a second mode. The processing circuitry determines a country to which a position of the ship detected by a position detector belongs. The processing circuitry determines whether description of a sign of the lateral buoy is the port sign or the starboard sign, from the mode of the lateral buoy and the determined country, based on a given correspondence relationship indicative of whether each of the first mode and the second mode corresponds to either one of the port sign and the starboard sign in each country.

An occupant of a marine vessel enjoys a service that is premised on the presence of precise position information of the marine vessel. A marine vessel smart pole 10 has a communication function of communicating with a marine vessel 22 and a communication object other than the marine vessel 22, and a position information providing function of providing a position of the marine vessel smart pole 10 to the marine vessel 22 or a server 23 of a port facility 24.