摘要:
Outflow of oil from a damaged tanker of "segregated ballast" type having some tanks dedicated for carriage of oil (C) and others (B) for water ballast is minimized by transferring oil out of the upper part of any damaged tank and minimizing the reduction of draft at the damaged area. This is accomplished by installing sluice valves (30) and piping to connect each cargo tank (C) to one or more ballast tanks (B) and providing controls therefor which, in case there is leakage from a cargo tank, are operative to open appropriate valves to allow oil to flow from the upper part of the damaged cargo tank to one or more ballast tanks, which would be empty.
摘要:
A method and system for dispersing oil in the event of an oil leak into a body of water from an oil tanker (10) or an oil drilling platform (100). There is provided structure (20) for detecting the existence of a leak from a container (12) of oil generally surrounded by a body of water into which the oil is leaking; structure (14) for storing an oil dispersant at the site of the leak; and structure (16) responsive to the occurrence of the leak, for automatically causing the dispersant to be released from the containment structure into the leaking oil. In an oil tanker (10), the system and method may be implemented by providing structure (40, 56) for detecting a leak in the oil tank wall (62), suspending a container (30, 50) of dispersant inside the oil tank, and providing structure (34, 54) for rupturing the dispersant container in response to the detection of a leak so that dispersant is caused to mix with the oil in the tank before the oil leaks therefrom. In the case of an offshore oil drilling platform (100), the system and method may be implemented by leak detection devices (110) mounted to the drill casings (102) or on buoys (114) in the water body, one or more dispersant containers (104) with release chutes (106) directed toward the water body mounted to the side of the platform, and structure (111) responsive to the detection devices for opening the dispersant containers in response to the detection of an oil leak.
摘要:
A water area object detection system includes an imager (1a) configured to capture an image around a hull (101), and a controller configured or programmed to perform a control to detect a feature point (F) corresponding to an object (O) in the image together with a distance to the feature point based on the image captured by the imager to create a water area map (M) in which an object presence range (F1) including a likelihood that the object is present is set around the feature point. The controller is configured or programmed to reduce the object presence range as the distance from the imager (1a) to the feature point (F) decreases, and set a size of the object presence range to a lower limit (r1) when the distance from the imager to the feature point is equal to or less than a predetermined distance (d1).
摘要:
A ship docking assisting apparatus 1 and a ship docking assisting method of assisting a ship 50 to be accurately docked with reduced hardware resource are provided. The ship docking assisting apparatus 1 includes a storage device 3 and a ship docking assist processor 10 which is used in the ship docking assisting method. The ship docking assisting apparatus 1 and the ship docking assisting method assist the docking of the ship 50 by outputting ship information related to the ship 50 to an assist target device 8. The ship docking assist processor 10 acquires image information including the docking target and the water surface taken by the imaging device 2 (S1). The ship docking assist processor 10 calculates at least one relative positional relation between a ship body 51 and the docking target, from a plurality of sets of image information obtained while the ship 51 is moved forward in the ship body front-rear direction by a propulsion unit 53 (S2). The ship docking assist processor 10 stores the relative positional relations in the storage device 3, as ship information (S3). The ship docking assist processor 10 outputs the at least one set of ship information stored in the storage device 3 to an assist target device 8 (S4).
摘要:
A ship navigation assisting device includes: an area setter 304 that sets, for a target ship, a polygonal safe navigation area defined by a plurality of vertices and surrounding the target ship; a collision point calculator 305 that calculates, based on a speed of the own ship, a relative position between the own ship and the target ship, and a velocity vector of the target ship, collision points between each of the plurality of vertices constituting the safe navigation area and the own ship; and a collision danger area calculator 306 that connects the plurality of collision points calculated by the collision point calculator 305 to calculate a collision danger area.