WO2022118753A1 - 操船システム及び操船方法 - Google Patents
操船システム及び操船方法 Download PDFInfo
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- WO2022118753A1 WO2022118753A1 PCT/JP2021/043400 JP2021043400W WO2022118753A1 WO 2022118753 A1 WO2022118753 A1 WO 2022118753A1 JP 2021043400 W JP2021043400 W JP 2021043400W WO 2022118753 A1 WO2022118753 A1 WO 2022118753A1
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- mooring
- thrust
- machine
- hull
- propulsion
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/16—Tying-up; Shifting, towing, or pushing equipment; Anchoring using winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
- B63H25/04—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring automatic, e.g. reacting to compass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
- B63B2021/008—Load monitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
- B63H2025/026—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring using multi-axis control levers, or the like, e.g. joysticks, wherein at least one degree of freedom is employed for steering, slowing down, or dynamic anchoring
Definitions
- This disclosure relates to a ship maneuvering system and maneuvering method for berthing and mooring of ships.
- Patent Document 1 discloses an automatic berthing mooring machine that automates maneuvering from berthing to mooring.
- the ship of Patent Document 1 includes a front-rear thrust engine that outputs the front-rear thrust of the hull, a bow-side side thruster and a stern-side pod propulsion device that can output lateral thrust in both sides of the hull, and a mooring line.
- a bow-side mooring machine and a stern-side mooring machine that can be wound and unwound, a range meter that measures the distance to the quay, and a bow-side side thruster, a stern-side pod propulsion machine, and a bow-side based on the measured values of the range meter.
- the controller performs berthing and mooring operations of the ship in the order of berthing mode and mooring mode. In the berthing mode, the controller stops the front-rear thrust engine, the bow-side mooring machine, and the stern-side mooring machine, and laterally moves the hull to the mooring start position 1 m from the quay by the bow-side side thruster and the stern-side pod propulsion machine.
- the controller stops the front-rear thrust engine, the bow-side thruster, and the stern-side pod propulsion machine, and pulls the mooring line with the bow-side mooring machine and the stern-side mooring machine to lock the hull to the quay.
- This disclosure was made in view of the above circumstances, and the purpose is to operate the hull efficiently by linking the propulsion machine and the mooring machine.
- the ship maneuvering system is A front-rear propulsion machine that can output thrust in any direction of the hull, A lateral propulsion machine capable of outputting thrust in any of the lateral directions of the hull, A mooring machine capable of winding and unwinding mooring lines, which is arranged at least one on each of the stern side and the bow side of the hull, and A ship maneuvering controller for controlling the operation of the front-rear propulsion machine, the lateral propulsion machine, and the mooring machine is provided.
- the ship maneuvering controller causes the mooring machine to wind up the mooring line while the mooring line is locked to the mooring column provided on the quay. It is characterized in that at least one of the front-rear propulsion machine and the lateral propulsion machine outputs a thrust for reducing the tension of the mooring line.
- the ship maneuvering method is A front-rear propulsion machine capable of outputting thrust in any of the front-rear directions of the hull, a lateral propulsion machine capable of outputting thrust in any of the lateral directions of the hull, and at least one on each of the stern side and the bow side of the hull. It is a method of maneuvering a ship equipped with mooring machines that can wind and unwind mooring lines, which are arranged one by one. When the hull is docked at the quay, the mooring machine is made to wind the mooring line in a state where the mooring line is locked to the mooring column provided on the quay, and at the same time, the front-rear propulsion machine is used. It is characterized in that at least one of the lateral propulsion machines outputs a thrust that reduces the tension of the mooring line.
- the ship maneuvering system is A front-rear propulsion machine that can output thrust in any direction of the hull, A lateral propulsion machine capable of outputting lateral thrust in any of the lateral directions of the hull, A mooring machine capable of winding and unwinding mooring lines, which is arranged at least one on each of the stern side and the bow side of the hull, and
- the mooring machine is regarded as a propulsion device that outputs thrust corresponding to the tension of the mooring line, and a ship maneuvering controller that controls the operation of a plurality of propulsion devices including the front-rear propulsion machine, the lateral propulsion machine, and the mooring machine.
- the ship maneuvering controller acquires a command vector representing the command thrust acting on the hull in terms of direction and magnitude, distributes the thrust corresponding to the command vector to each of the plurality of propulsion devices, and distributes the thrust corresponding to the command vector to the plurality of propulsion devices. It is characterized in that the plurality of propulsion devices are controlled so that the thrust distributed from each of the above is output.
- the ship maneuvering method is A front-rear propulsion machine capable of outputting thrust in any of the front-rear directions of the hull, a lateral propulsion machine capable of outputting thrust in any of the lateral directions of the hull, and at least one on each of the stern side and the bow side of the hull. It is a method of maneuvering a ship equipped with mooring machines that can wind and unwind mooring lines, which are arranged one by one. Obtaining a command vector that expresses the command thrust acting on the hull in terms of direction and magnitude.
- the mooring machine is regarded as a propulsion device that outputs thrust corresponding to the tension of the mooring line, and the front-rear propulsion machine, the lateral propulsion machine, and the plurality of propulsion devices including the mooring machine are assigned to the command vector. Distribute the corresponding thrust and It is characterized by including controlling the plurality of propulsion devices so that the thrust distributed from each of the plurality of propulsion devices is output.
- the ship maneuvering system related to this disclosure is A front-rear propulsion machine that can output thrust in any direction of the hull, A lateral propulsion machine capable of outputting thrust in any of the lateral directions of the hull, A mooring machine capable of winding and unwinding mooring lines, which is arranged at least one on each of the stern side and the bow side of the hull, and A ship maneuvering controller for controlling the operation of the front-rear propulsion machine, the lateral propulsion machine, and the mooring machine is provided.
- the ship maneuvering controller causes the mooring machine to wind up the mooring line while the mooring line is locked to the mooring column provided on the quay. It is characterized in that at least one of the front-rear propulsion machine and the lateral propulsion machine outputs a thrust force that makes the tension of the mooring line equal to or less than a predetermined threshold value.
- the hull can be efficiently berthed by linking the propulsion machine and the mooring machine.
- FIG. 1 is a diagram showing a schematic configuration of a ship to which the ship maneuvering system according to the embodiment of the present disclosure is applied.
- FIG. 2 is a diagram showing a schematic configuration of a mooring machine.
- FIG. 3 is a diagram showing a configuration of a ship maneuvering system.
- FIG. 4 is a diagram illustrating a functional unit of the ship maneuvering controller.
- FIG. 5 is a diagram illustrating processing of the ship maneuvering equipment control unit.
- FIG. 6 is a diagram illustrating a ship maneuvering method when berthing and mooring.
- FIG. 7 is a diagram illustrating a ship motion model when moored.
- FIG. 1 is a diagram showing a schematic configuration of a ship S to which the ship maneuvering system 20 according to the embodiment of the present invention is applied.
- the ship S includes a hull 5, at least one front-rear propulsion machine 2 that outputs a thrust in the front-rear direction to the hull 5, and at least one lateral propulsion machine 3 that outputs a lateral thrust to the hull 5.
- the front-rear propulsion machine 2 includes a combination of a variable pitch propeller and a rudder, which are main propulsion machines.
- the variable pitch propeller and rudder are provided on the stern side of the hull 5.
- the front-rear propulsion machine 2 is not limited to the above, and may be a swivel thruster or a combination of a plurality of variable-pitch propellers and a rudder.
- the lateral propulsion device 3 preferably includes at least one bow-side lateral propulsion device 3B and at least one stern-side lateral propulsion device 3A.
- the bow side lateral propulsion device 3B is a side thruster (bow thruster) provided on the bow side.
- the combination of the variable pitch propeller and the rudder provided on the stern side can output both the thrust in the front-rear direction and the thrust in the lateral direction depending on the direction of the rudder. It also has a function as a machine 3A.
- the lateral propulsion device 3 included in the ship S is not limited to the above, and side thrusters are provided on the bow side and the stern side of the hull 5, respectively, or the hull 5 is turned to at least one of the bow side and the stern side.
- An expression thruster may be provided.
- the ship S includes at least one bow-side mooring machine 10B installed on the bow side of the deck and at least one stern-side mooring machine 10A installed on the stern side of the deck.
- the bow side mooring machine 10B includes a headline mooring machine and a forward spring line mooring machine.
- the bow-side mooring machine 10B may further include a forward-breasted mooring machine.
- the stern side mooring machine 10A includes a stern line mooring machine and an aft spring mooring machine.
- the stern side mooring machine 10A may further include an aft-breasted mooring machine.
- the mooring machine 10 to be possessed by the ship S (when the bow side mooring machine 10B and the stern side mooring machine 10A are not distinguished, the reference numeral 10 is used) is determined by the number of outfits and the like.
- each mooring machine 10 of the bow side mooring machine 10B and the stern side mooring machine 10A has substantially the same structure.
- each mooring machine 10 includes a mooring line R and a winch W capable of winding and unwinding the mooring line R.
- the winch W is an electro-hydraulic type.
- the winch W is a hydraulic type that switches between the take-up drum 11 on which the mooring line R is wound, the motor 12 that rotationally drives the take-up drum 11, and the connection and disconnection of power transmission from the motor 12 to the take-up drum 11.
- winch W It includes a clutch 13, a speed reducer 14 provided on a power transmission path from a motor 12 to a take-up drum 11, and a hydraulic pressure release type brake 15 that constantly applies a braking force.
- the structure of the winch W is not limited to the above, and the winch W may be electric.
- the mooring machine 10 is provided with a rotation position sensor 51, a tension meter 52, a cord length meter 53, and a winch control device 50 that controls the operation of the winch W based on these detected values.
- the rotation position sensor 51 detects the rotation position and the rotation speed of the motor 12 or the take-up drum 11.
- the line length total 53 measures the length of the mooring line R unwound from the take-up drum 11.
- the winch control device 50 measures the rotation of the motor 12 or the take-up drum 11 based on the detection signal of the rotation position sensor 51 and / or the measured value of the rope length meter 53, and the take-up length and the take-out length of the mooring line R. To estimate.
- the tension gauge 52 may directly or indirectly detect the tension (load) acting on the mooring line R.
- the tension meter 52 may be, for example, a load cell provided in the brake 15, and the tension of the mooring line R may be estimated based on the load detected by the load cell.
- the tension meter 52 is, for example, a torque sensor that detects the output torque of the motor 12, and the tension of the mooring line R may be estimated based on the torque detected by the torque sensor.
- the winch control device 50 controls the rotation of the take-up drum 11 based on the detection value of the tension meter 52 so that the tension acting on the mooring line R is maintained at a predetermined value that does not exceed a predetermined upper limit value. Can be done.
- the power transmission path from the motor 12 to the take-up drum 11 is connected by the clutch 13, and the take-up drum 11 is rotationally driven in the take-up direction.
- the clutch 13 is disengaged, the power transmission path from the motor 12 to the take-up drum 11 is cut off, and the take-up drum 11 becomes idle and rotates in the unwinding direction. can do.
- the power transmission path from the motor 12 to the take-up drum 11 may be connected by the clutch 13, and the take-up drum 11 may be rotationally driven in the unwinding direction.
- the tip of the mooring line R is locked to the mooring column 35 provided on the quay.
- the mooring line R pulled out from the take-up drum 11 is protected and guided by an appropriate guide device 36 such as a chock (mooring hole), a fair leader, a deck end roller, and a stand roller.
- FIG. 3 is a diagram showing the configuration of the ship maneuvering system 20.
- the ship maneuvering system 20 of the ship S includes a ship maneuvering controller 6, an instrument group 7, a user interface 8, and a ship maneuvering equipment group 9 electrically and wirelessly connected to the ship maneuvering controller 6. ..
- the ship maneuvering controller 6 includes a processor, memories such as ROM and RAM, and an I / O unit (all are not shown).
- An instrument group 7, a user interface 8, and a ship maneuvering device group 9 are connected to the ship maneuvering controller 6 via an I / O unit.
- a storage (not shown) may be connected to the ship maneuvering controller 6 via an I / O unit.
- the ship maneuvering controller 6 may include a single processor that performs centralized control, or may include a plurality of processors that perform distributed control.
- Basic programs and application programs executed by the processor are stored in the memory and the storage means.
- the application program is configured to cause the processor to perform processing of each functional unit. When the processor reads and executes the program, the processor realizes the function as the ship maneuvering controller 6.
- the ship maneuvering controller 6 as described above includes, for example, a computer, a personal computer, a microcontroller, a microprocessor, a PLD (programmable logic device) such as an FPGA (field-programmable gate array), a PLC (programmable logic controller), and a logic circuit. It may be composed of at least one of them, or a combination of two or more.
- a PLD programmable logic device
- FPGA field-programmable gate array
- PLC programmable logic controller
- a ship-land communication device 31 is connected to the ship maneuvering controller 6.
- the ship maneuvering controller 6 uses the ship-land communication device 31 to transmit ship maneuvering information to the condition monitoring device 33 provided at the land base.
- This ship maneuvering information includes navigation status in the port and equipment operation data.
- the instrument group 7 includes a rangefinder 27, a camera 28, and various nautical instruments.
- the distance meter 27 includes a bow side distance meter that measures the bow side distance from the bow to the quay and a stern side distance meter that measures the distance from the stern to the quay.
- the rangefinder 27 may be a known non-contact rangefinder such as a laser rangefinder.
- the ship maneuvering controller 6 can obtain the distance (berthing distance) from the hull 5 (particularly, the bow and stern) to the quay to be berthed based on the information acquired from the range finder 27.
- the camera 28 includes a bow-side camera provided on the bow-side deck that continuously or intermittently captures the quay from the bow, and a stern-side camera that is provided on the stern-side deck and continuously or intermittently captures the quay from the stern. including.
- the imaging field of the bow-side camera includes the mooring line R delivered from the bow-side mooring machine 10B and / or the bow-side mooring machine 10B.
- the imaging field of the stern side camera includes the mooring line R delivered from the stern side mooring machine 10A and / or the stern side mooring machine 10A.
- an around view camera system may be adopted as the camera 28.
- the ship position measuring device 26 is a radio wave type and / or a light wave type position measuring device using radio waves and light from GPS using a satellite and a reference station.
- the ship maneuvering controller 6 can obtain navigation status information including the position, course, bow azimuth, ship speed, etc. of the hull 5 based on the information acquired from various navigation instruments.
- the ship maneuvering controller 6 uses the ship-land communication device 31 to acquire port information in a timely manner from the port information providing device 32 provided at the land base.
- the port information includes weather / sea condition information in the port, port environment information, and the like.
- Meteorological and sea condition information includes wind speed, wind direction, tidal current, tide level, weather, and climate in the harbor.
- the port environment information includes the degree of congestion in the port and the berth status.
- the ship maneuvering controller 6 also uses the information sent from the port information providing device 32 via the ship-land communication device 31 for calculation together with the information from the instrument group 7.
- the user interface 8 is provided with a control device 80 and a display device 83.
- the user interface 8 includes a setting device and an indicator for ship maneuvering equipment such as individual propellers and rudders, a display unit for displaying signals from the instrument group 7 such as a direction display and a ship speed display, various function changeover switches, and a display unit.
- An indicator light or the like may be further provided.
- the joystick 81 and the turning dial 82 are provided as the control device 80.
- the joystick 81 receives commands for the direction and magnitude of thrust for translation of the hull 5 input by the operator by moving the joystick 81, and inputs the commands to the ship maneuvering controller 6.
- the turning dial 82 receives a command of the direction and magnitude of the turning moment for turning movement, which is input by the operator by moving the turning dial 82, and inputs the command to the ship maneuvering controller 6.
- the control device 80 is not limited to the above, and a known control device may be adopted.
- the display device 83 at least one known display device among various display devices such as a touch panel type display and a head mount type display is adopted.
- the display device 83 may include ship maneuvering support information output from the ship maneuvering controller 6, an image captured by the camera 28, equipment operation status, navigation status information, environmental information (sea condition / weather information) of the hull 5, and the like. ..
- the ship maneuvering support information includes the position of the ship on the sea map, recommended route, avoidance line, remaining distance, sea area facility, target position, movement speed vector of hull 5, speed and quay at any position of the nose and stern. At least one of the remaining distances and the like is included.
- the ship maneuvering equipment group 9 includes a winch control device 50 that controls the winch W of the mooring machine 10, a front-rear propulsion control device 91 that controls the front-rear propulsion machine 2, and a lateral propulsion control device 92 that controls the lateral propulsion machine 3.
- the winch control device 50, the front-rear propulsion control device 91, and the lateral propulsion control device 92 are provided according to the number of winches W, the front-rear propulsion device 2, and the lateral propulsion device 3 mounted on the ship S. However, in FIG. 3, one of each of the winch control device 50, the front-rear propulsion control device 91, and the lateral propulsion control device 92 is shown, and the rest are omitted.
- the ship maneuvering controller 6 outputs an operation command to each of these ship maneuvering equipment groups 9, and the ship maneuvering equipment group 9 operates the corresponding ship maneuvering equipment based on the operation command.
- the ship maneuvering controller 6 has each function unit of a ship maneuvering support information generation unit 65, a display control unit 66, a route planning unit 67, a command generation unit 68, and a ship maneuvering equipment control unit 69.
- the ship maneuvering support information generation unit 65 generates ship maneuvering support information based on the information acquired from the instrument group 7 and the port information providing device 32.
- the display control unit 66 displays the generated ship maneuvering support information on the display device 83.
- the route planning unit 67 searches for an optimum route that optimizes a predetermined evaluation index from the departure point to the destination based on the information acquired from the instrument group 7 and the port information providing device 32, and plans the optimum route. Generated as a route.
- the command generation unit 68 generates a command on behalf of the operator during automatic maneuvering.
- the ship maneuvering equipment control unit 69 controls the operation of the ship maneuvering equipment group 9.
- FIG. 5 is a diagram illustrating the processing of the ship maneuvering equipment control unit 69.
- the ship maneuvering equipment control unit 69 of the ship maneuvering controller 6 has an acquisition unit 61, a thrust distribution calculation unit 62, and an output unit 63.
- the acquisition unit 61 acquires the information detected or measured by the instrument group 7 and the command received by the control device 80 of the user interface 8, and A / D conversion, scaling processing, and signal for the acquired information (signal). Make an abnormality judgment.
- the thrust distribution calculation unit 62 generates a "command vector" based on the command received by the joystick 81 (that is, the tilt angle and tilt direction of the joystick 81).
- the command vector is defined as expressing the command thrust acting on the hull 5 in terms of direction and magnitude.
- the direction of the command vector corresponds to the tilting direction of the joystick 81, and the magnitude of the command vector corresponds to the tilting angle of the joystick 81.
- the thrust distribution calculation unit 62 includes the tidal current detected by the tidal current meter 29, the wind direction and the wind speed detected by the anemometer 25, and / or the disturbance including the tidal current and the wind direction wind speed in the port acquired from the port information providing device 32. Information is acquired, the disturbance force acting on the ship S is estimated based on the disturbance information, and the command vector is corrected by applying a force against the disturbance force to the command vector.
- the thrust distribution calculation unit 62 calculates the thrust to be distributed to each of the plurality of propulsion devices (mooring machine 10, front / rear propulsion machine 2, and lateral propulsion machine 3) so that the modified command vector and the thrust vector correspond to each other. I do.
- the mooring machine 10 is regarded as a kind of propulsion device, and the "thrust vector" is the combined force of thrust output from a plurality of propulsion devices (mooring machine 10, front-rear propulsion machine 2, and lateral propulsion machine 3). Is defined as the direction and size.
- the thrust distribution calculation method by the thrust distribution calculation unit 62 will be described in detail later.
- the output unit 63 performs scaling, D / A conversion, abnormality handling, and the like on the thrusts distributed to the propulsion devices 2, 3 and 10 obtained by the thrust distribution calculation unit 62, and then the corresponding winch control device 50. Is output as an operation command to the front-rear propulsion control device 91 and the lateral propulsion control device 92. As a result, thrust toward the tilting direction is applied to the hull 5 with a magnitude corresponding to the tilting angle of the joystick 81.
- the ship maneuvering controller 6 starts approach maneuvering when the ship S enters the port.
- the ship maneuvering controller 6 generates approach ship maneuvering support information using the information acquired from the instrument group 7 and the port information providing device 32, and displays it on the screen of the display device 83.
- the ship maneuvering controller 6 sets the predetermined berthing start position P2 as the target position, and uses the information acquired from the instrument group 7 and the port information providing device 32 to plan the optimum route from the port entrance P1 to the berthing start position P2. Ask as.
- the nautical chart of the port on which the planned route consisting of a plurality of way points, the target position, and the position of the own ship are overlaid as the approach ship maneuvering support information, and the navigation information such as the bow azimuth and the ship speed are displayed. Displayed graphically.
- the berthing start position P2 is a position separated from the berth quay by a predetermined distance (for example, about 30 m), and the hull 5 of the ship S that has reached the berthing start position P2 is substantially parallel to the extension direction of the quay in the front-rear direction. , The speed in the front-back direction is almost zero.
- the ship operator operates the joystick 81 and the turning dial 82 based on the approach ship maneuvering support information displayed on the display device 83.
- the ship maneuvering controller 6 obtains a command vector based on the tilt angle and tilt direction of the joystick 81.
- the vessel S may be automatically approach-operated.
- the ship maneuvering controller 6 may generate a command vector by itself based on the information acquired from the instrument group 7 and the port information providing device 32 and the planned route.
- the ship maneuvering controller 6 obtains a modified command vector by applying a force that opposes the disturbance force to the command vector, and obtains a thrust vector corresponding to the modified command vector by synthesizing the thrusts output from the front-rear propulsion machine 2. As described above, the thrust is distributed to the front-rear propulsion machine 2. In approach maneuvering, the thrust distributed to the lateral propulsion machine 3 and the mooring machine 10 is zero. The ship maneuvering controller 6 generates a thrust target value such that the distributed thrust is output and outputs it to the front-rear propulsion control device 91, and the front-rear propulsion control device 91 outputs the thrust corresponding to the thrust target value. The front-rear propulsion machine 2 is controlled in such a manner. As a result, the vessel S obtains a thrust corresponding to the command vector and navigates along the planned route.
- the ship maneuvering controller 6 starts berthing maneuvering when the ship S reaches the berthing start position P2.
- the ship maneuvering controller 6 generates berthing maneuvering support information using the information acquired from the instrument group 7 and the port information providing device 32, and displays it on the screen of the display device 83.
- the vessel S is moved from the berthing start position P2 to the predetermined mooring start position P3.
- the mooring start position P3 is a position separated from the berth quay by a few meters, and the hull 5 of the ship S that has reached the mooring start position P3 is substantially parallel to the extension direction of the quay in the front-rear direction, and is in the bow direction and.
- the lateral speed is almost zero.
- the nautical chart of the port on which the target position and the own ship position are overlaid as berthing support information, the navigation information such as the bow azimuth and the ship speed, the berthing distance, and the image captured by the camera 28 are displayed. Etc. are displayed.
- the ship operator operates the joystick 81 and the turning dial 82 based on the berthing support information displayed on the display device 83.
- the ship maneuvering controller 6 obtains a command vector based on the tilt angle and tilt direction of the joystick 81.
- the ship S may be automatically berthed and maneuvered.
- the ship maneuvering controller 6 may generate a command vector by itself based on the information acquired from the instrument group 7 and the port information providing device 32.
- the ship maneuvering controller 6 obtains a command vector corrected by applying a force that opposes the disturbance force to the command vector, and corresponds to the command vector corrected by synthesizing the thrusts output from the front-rear propulsion machine 2 and the lateral propulsion machine 3. Thrust is distributed to the front-rear propulsion machine 2 and the lateral propulsion machine 3 so that the thrust vector can be obtained. In berthing maneuvering, the thrust distributed to the mooring machine 10 is zero.
- the ship maneuvering controller 6 generates and outputs a thrust target value such that the thrust distributed to each of the front-rear propulsion control device 91 and the lateral propulsion control device 92 is output, and the front-rear propulsion control device 91 gives.
- the front-rear propulsion device 2 is controlled so that the thrust corresponding to the given thrust target value is output, and the lateral propulsion control device 92 controls the lateral propulsion device 3 so as to output the thrust corresponding to the given thrust target value. Control.
- the ship S obtains a thrust corresponding to the command vector and mainly moves laterally to the mooring start position P3.
- the ship maneuvering controller 6 uses the automatic azimuth holding function to hold the ship S at the mooring start position P3.
- the automatic azimuth holding function of the ship maneuvering controller 6 performs PID calculation etc. for the deviation between the set bow azimuth and the bow azimuth from the compass 21, and uses it as a turning moment command instead of the turning dial 82 for thrust distribution calculation.
- the front-rear propulsion machine 2 and the lateral propulsion machine 3 are operated so that the direction of the bow is maintained.
- the ship maneuvering controller 6 After the tips of all mooring lines R are locked to the mooring columns 35 provided on the quay, the ship maneuvering controller 6 starts mooring maneuvering.
- the ship maneuvering controller 6 generates mooring ship maneuvering support information using the information acquired from the instrument group 7 and the port information providing device 32, and displays it on the screen of the display device 83.
- the nautical chart of the port on which the target position and the own ship position are overlaid as berthing support information, the navigation information such as the bow azimuth and the ship speed, the berthing distance, and the image captured by the camera 28 are displayed. Etc. are displayed.
- the mooring is automatically performed, and the ship maneuvering controller 6 generates a command vector based on the information acquired from the instrument group 7 and the port information providing device 32.
- the operator may visually recognize the mooring and maneuvering support information displayed on the display device 83 and operate the joystick 81 and the turning dial 82 as necessary. In this case, the operation received by the joystick 81 and the turning dial 82 may take precedence over the command generated by the ship maneuvering controller 6.
- the ship maneuvering controller 6 obtains a modified command vector by applying a force that opposes the disturbance force to the command vector, and the modified command is obtained by synthesizing the thrusts output from the mooring machine 10, the front-rear propulsion machine 2, and the lateral propulsion machine 3. Thrust is distributed to the mooring machine 10, the front-rear propulsion machine 2, and the lateral propulsion machine 3 so that the thrust vector corresponding to the vector can be obtained.
- the ship maneuvering controller 6 generates and outputs a thrust target value such that the thrust distributed to each of the winch control device 50, the front-rear propulsion control device 91, and the lateral propulsion control device 92 is output.
- the winch control device 50 controls the mooring machine 10 so that a thrust corresponding to a given thrust target value is output. Specifically, the winch control device 50 controls the operation of the winch W so that a thrust target value can be obtained by adjusting the tension and the rope length by winding or unwinding the mooring line R.
- the front-rear propulsion control device 91 controls the front-rear propulsion device 2 so that the thrust corresponding to the given thrust target value is output, and the lateral propulsion control device 92 outputs the thrust corresponding to the given thrust target value.
- the lateral propulsion device 3 is controlled so as to. As a result, the vessel S mainly moves laterally until it berths with a thrust corresponding to the command vector.
- the distribution of thrust to the mooring machine 10 is prioritized.
- An allowable range of tension of the mooring line R is set for each mooring machine 10. After the mooring maneuvering is started and the deflection of the mooring line R is eliminated by the hoisting operation of the mooring machine 10, the mooring line R is maintained within the allowable range so that the tension of the mooring line R measured by the tension meter 52 is maintained. Thrust is distributed to the machine 10.
- the allowable range of tension is not less than a predetermined threshold value larger than 0 and smaller than the maximum entrainment force of the mooring machines 10A and 10B.
- the maximum entrainment force of the mooring machines 10A and 10B is a known value peculiar to each of the mooring machines 10A and 10B.
- a threshold value (allowable range) regarding the tension of the mooring line R may be set individually.
- a threshold value (allowable range) regarding the tension of the same mooring line R may be set for all the mooring machines 10A and 10B.
- the thrust is distributed to each mooring machine 10 so that the tension of each mooring line R is maintained within an allowable range. Then, the combined vector of the thrusts output by all the mooring machines 10 (the mooring machine thrust vector) is obtained, and the shortage obtained by subtracting the mooring machine thrust vector from the command vector is the thrust output from the front-rear propulsion machine 2 and the lateral propulsion machine 3. Is supplemented with. If there is no shortage, the thrust output from the front-rear propulsion machine 2 and the lateral propulsion machine 3 may be zero.
- the ship maneuvering controller 6 causes the bow side mooring machine 10B and the stern side mooring machine 10A to perform the winding operation of the mooring line R in at least a part of the mooring maneuvering, and at the same time, forward and backward propulsion.
- These propulsion devices are controlled so that at least one of the machine 2 and the lateral propulsion machine 3 outputs a thrust that reduces the tension of the mooring line R.
- the ship maneuvering controller 6 is configured to estimate the thrust output by the bow side mooring machine 10B and the stern side mooring machine 10A based on the tension of the mooring line R of the bow side mooring machine 10B and the stern side mooring machine 10A.
- the hull motion model has the coordinates of the input point 78, which is the position of the guide 36 arranged on the most tip side of the winch W with respect to the hull 5, for each mooring line R. ..
- the ship maneuvering controller 6 inputs the draft of the hull 5, the position of the hull 5, the coordinates of the quayside mooring point 77, which is the locking position to the mooring column 35, and the tension of the mooring line R into the hull motion model. Thereby, the components of the thrust acting on the input point 78 in the three directions (front-back direction, lateral direction, and vertical direction) can be estimated. Further, the ship maneuvering controller 6 can estimate the behavior of the hull 5 by the thrust acting on the input point 78 by simulation using the hull motion model. The ship maneuvering controller 6 can determine the thrust to be distributed to the bow side mooring machine 10B and the stern side mooring machine 10A based on the calculation result using the ship motion model.
- the winch control device 50 operates the winch W so that the tension used in the simulation is generated by the ship maneuvering controller 6. Then, the ship maneuvering controller 6 feeds back the difference between the movement of the hull 5 obtained by the simulation and the actual movement of the hull 5, and moves the hull 5 in an arbitrary direction to perform mooring.
- the ship maneuvering controller 6 issues a command to the winch control device 50 to reduce the winding speed, and the thrust that is insufficient due to the decrease in the winding speed is the front-rear propulsion machine.
- Thrust is distributed to the front-rear propulsion unit 2 and / or the lateral propulsion unit 3 so as to be supplemented by the thrust generated by the lateral propulsion unit 2 and / or the lateral propulsion unit 3. This prevents the mooring line R from being overloaded.
- the hull 5 is treated as being controlled in a horizontal plane with three degrees of freedom (x, y, z).
- the thrust commands received by the joystick 81 and the turning dial 82 are assigned to the front-back thrust command (xd), the lateral thrust command (yd), and the turning moment command ( ⁇ d), and the command vector Xd is assigned. It is expressed by the following equation 1.
- the thrust vector is obtained from the modified command vector, the following command vector Xd is read as the modified command vector.
- X, Xd, A, A *, and Xk in Equations 1 to 4 represent a vector or a matrix.
- the thrust Tp of the front-rear propulsion machine 2, the rudder thrust Tr, the thrust Ts of the lateral propulsion machine 3, the thrust Tb of the bow side mooring machine 10B, and the thrust Ta of the stern side mooring machine 10A When the ship S is equipped with n plurality of front-rear propulsion units 2, the thrusts of the front-rear propulsion units 2 are expressed as Tp1, ..., Tpn. When there are multiple rudders, the rudder thrust Tr is considered to be the combined force of the multiple rudders. When the ship S is equipped with a plurality of lateral propulsion units 3 of m units, the thrust of the lateral propulsion units 3 is expressed as Ts1, ..., Tsm.
- the matrix A is a transposed matrix.
- Xk satisfies the following equation 5.
- a * is called a thrust distribution matrix.
- a * ⁇ Xk 0 ⁇ ⁇ ⁇ (Equation 5)
- a thrust distribution matrix A * is stored in advance in the ship maneuvering controller 6, and the ship maneuvering controller 6 derives a thrust vector from a command vector Xd (a modified command vector in the above embodiment) using the thrust distribution matrix A *.
- the ship maneuvering system 20 is At least one front-rear propulsion machine 2 capable of outputting thrust in any of the front-rear directions of the hull 5, and At least one lateral propulsion machine 3 capable of outputting thrust in any of the lateral directions of the hull 5 and Mooring machines 10A and 10B capable of winding and unwinding the mooring line R, which are arranged at least one on the stern side and one on the bow side of the hull 5, and It includes a front-rear propulsion machine 2, a lateral propulsion machine 3, and a ship maneuvering controller 6 that controls the operations of the mooring machines 10A and 10B.
- the ship maneuvering controller 6 berths the hull 5 to the quay, the mooring line R is wound on the mooring machines 10A and 10B in a state where the mooring line R is locked to the mooring column 35 provided on the quay.
- at least one of the front-rear propulsion machine 2 and the lateral propulsion machine 3 is configured to output a thrust that reduces the tension of the mooring line R.
- the method of maneuvering the ship S outputss thrust in at least one front-rear propulsion device 2 capable of outputting thrust in any of the front-rear directions of the hull 5, and in any of the lateral directions of the hull 5.
- the method of maneuvering the ship S outputss thrust in at least one front-rear propulsion device 2 capable of outputting thrust in any of the front-rear directions of the hull 5, and in any of the lateral directions of the hull 5.
- at least one possible lateral thruster 3 and mooring machines 10A and 10B capable of winding and unwinding the mooring line R, which are arranged at least one on each of the stern side and the bow side of the hull 5.
- the hull 5 has a thrust that reduces the tension of the mooring line R while the mooring machines 10A and 10B are made to wind the mooring line R in order to berth the hull 5. Acts on.
- the propulsion machines 2 and 3 By linking the propulsion machines 2 and 3 with the mooring machines 10A and 10B in this way, it is possible to prevent the mooring line R from being overloaded.
- the overload is eliminated by causing the mooring machine to carry out the mooring line feeding operation.
- the mooring line R is prevented from being overloaded during the winding operation of the mooring machines 10A and 10B, so that the feeding length of the mooring line R is stagnant. Since the length is continuously shortened without lengthening or lengthening, the hull 5 can be berthed more efficiently than when only the mooring machines 10A and 10B are used.
- the ship maneuvering system 20 further includes a tension meter 52 for measuring the tension of the mooring line R, and the ship maneuvering controller 6 has a tension of the mooring line R measured by the tension meter 52 larger than 0 and the mooring machines 10A and 10B. It is configured to output a thrust that reduces the tension of the mooring line R to at least one of the front-rear propulsion machine 2 and the lateral propulsion machine 3 so as to be maintained within a range below a predetermined threshold that is smaller than the maximum entrainment force. Has been done.
- the front-rear propulsion device 2 and the lateral propulsion device 2 and the lateral propulsion device 2 are maintained so that the tension of the mooring line R is maintained in a range equal to or less than a predetermined threshold value which is larger than 0 and smaller than the maximum entrainment force of the mooring machines 10A and 10B.
- At least one of the propulsion devices 3 is made to output a thrust that reduces the tension of the mooring line R.
- the ship maneuvering system 20 is At least one front-rear propulsion machine 2 capable of outputting thrust in any of the front-rear directions of the hull 5, and at least one lateral propulsion machine 3 capable of outputting thrust in any of the lateral directions of the hull 5.
- Mooring machines 10A and 10B capable of winding and unwinding the mooring line R, which are arranged at least one on the stern side and one on the bow side of the hull 5, and
- the mooring machines 10A and 10B are regarded as propulsion devices that output thrust corresponding to the tension of the mooring line R, and a plurality of propulsion devices 2 and 3 including the front-rear propulsion machine 2, the lateral propulsion machine 3, and the mooring machines 10A and 10B.
- 10A, 10B is provided with a ship maneuvering controller 6 for controlling the operation.
- the ship maneuvering controller 6 acquires a command vector representing the command thrust acting on the hull 5 in terms of direction and magnitude, and distributes the thrust corresponding to the command vector to each of the plurality of propulsion devices 2, 3, 10A, and 10B. It is characterized in that the plurality of propulsion devices 2, 3, 10A, 10B are controlled so that the thrusts distributed from each of the plurality of propulsion devices 2, 3, 10A, 10B are output.
- the ship maneuvering controller 6 has a plurality of propulsion so that the thrust vector representing the combined force of the thrusts output from each of the plurality of propulsion devices 2, 3, 10A, and 10B in the direction and magnitude corresponds to the command vector. It may be configured to distribute thrust to each of the devices 2, 3, 10A and 10B.
- At least one front-rear propulsion device 2 capable of outputting thrust in any of the front-rear directions of the hull 5 and thrust force are output in any of the lateral directions of the hull 5.
- at least one possible lateral propulsion machine 3 and mooring machines 10A and 10B capable of winding and unwinding the mooring line R, which are arranged at least one on each of the stern side and the bow side of the hull 5.
- the mooring machines 10A and 10B are regarded as propulsion devices that output thrust corresponding to the tension of the mooring line R, and a plurality of propulsion devices 2 and 3 including the front-rear propulsion machine 2, the lateral propulsion machine 3, and the mooring machines 10A and 10B.
- 10A, 10B each, and distribute the thrust corresponding to the command vector, and It includes controlling the plurality of propulsion devices 2, 3, 10A, 10B so that the thrust distributed from each of the plurality of propulsion devices 2, 3, 10A, 10B is output.
- the above allocation is such that the thrust vector representing the combined force of the thrusts output from each of the plurality of propulsion devices 2, 3, 10A, and 10B in the direction and magnitude corresponds to the command vector. It may include distributing thrust to each of the propulsion devices 2, 3, 10A, 10B.
- the mooring machines 10A and 10B are regarded as a kind of propulsion devices, and a plurality of propulsion devices 2, 3 and 10A including mooring machines 10A and 10B, front and rear propulsion machines 2 and lateral propulsion machines 3 , 10B is allocated the thrust that acts on the hull 5.
- the propulsion machines 2 and 3 and the mooring machines 10A and 10B are controlled in an integrated manner, it is not necessary to operate the propulsion machines 2 and 3 and the mooring machines 10A and 10B individually, and the work efficiency is improved. It is possible to save labor.
- the ship is moored by generating thrust in cooperation with the propulsion devices 2, 3 and the plurality of propulsion devices 2, 3, 10A, 10B including the mooring machines 10A, 10B.
- the ship is moored by generating thrust in cooperation with the propulsion devices 2, 3 and the plurality of propulsion devices 2, 3, 10A, 10B including the mooring machines 10A, 10B.
- the hull 5 is moved only by the machines 10A and 10B, it is possible to reach the target position more stably.
- the ship maneuvering system 20 includes a joystick 81 that receives an operation and inputs the operation to the ship maneuvering controller 6, and the ship maneuvering controller 6 commands the tilting direction of the joystick 81 by using the tilt angle of the joystick 81 as the size of the command vector.
- the direction of the vector is set so that the command vector corresponding to the operation accepted by the joystick 81 is acquired.
- acquiring the command vector sets the tilt angle of the joystick 81 as the magnitude of the command vector and the tilt direction of the joystick 81 as the direction of the command vector, and commands corresponding to the operations accepted by the joystick 81. Includes getting a vector.
- the ship maneuvering system 20 includes a range finder 27 for measuring the berthing distance of the hull 5 and a ship position measuring device 26 for measuring the ship position of the hull 5, and the ship maneuvering controller 6 includes the berthing distance and the ship position. It is configured to generate a command vector based on.
- acquiring the command vector is to measure the berthing distance of the hull 5, to measure the hull position of the hull 5, and to command based on the berthing distance and the ship position. Includes producing a vector.
- the ship maneuvering controller 6 acquires disturbance information including the wind direction, wind speed, and tidal current of the environment in which the hull 5 is placed, and the disturbance acting on the hull 5 based on the disturbance information. It is configured to estimate the force and modify the command vector with the disturbance force.
- acquiring the command vector is to acquire the disturbance information including the wind direction, the wind speed, and the tidal current of the environment in which the hull 5 is placed, and the hull 5 is based on the disturbance information. Includes estimating the disturbance force acting on the and modifying the command vector with the disturbance force.
- the command vector is modified so as to cancel the disturbance force acting on the hull 5, so that the command vector before modification does not have to take the disturbance force into consideration. Therefore, the ship operator can issue a command regardless of the experience value.
- the ship maneuvering controller 6 when the hull 5 is berthed and moored to the quay, the ship maneuvering controller 6 is closer to the quay than the berthing start position P2 from the predetermined berthing start position P2.
- the berthing maneuver that moves the hull 5 to the berth and the mooring maneuver that moves the hull 5 from the mooring start position P3 until it berths at the quay are performed so that the thrust distributed to the mooring machines 10A and 10B becomes zero in the berthing maneuvering. It is configured to distribute thrust to each of the plurality of propulsion devices 2, 3, 10A and 10B.
- the ship maneuvering controller 6 preferentially distributes thrust to the mooring machines 10A and 10B among the plurality of propulsion devices 2, 3, 10A and 10B in the mooring maneuvering. It is configured to distribute thrust to each of the plurality of propulsion devices 2, 3, 10A and 10B.
- the hull 5 when the hull 5 is berthed and moored to the quay, the hull 5 is moved from the predetermined berthing start position P2 to the mooring start position P3 closer to the quay than the berthing start position P2.
- Multiple propulsion devices 2 to perform berthing maneuvering and mooring maneuvering to move the hull 5 from the mooring start position P3 to berth at the quay so that the thrust distributed to the mooring machines 10A and 10B in berthing maneuvering becomes zero. , 3, 10A, 10B, and the thrust is distributed to each of them.
- the plurality of propulsion devices 2 so that the thrust is preferentially distributed to the mooring machines 10A and 10B among the plurality of propulsion devices 2, 3, 10A and 10B. Thrust is distributed to each of 3, 10A and 10B.
- thrust can be applied to the hull 5 by operating the propulsion devices 2 and 3.
- thrust can be applied to the hull 5 by operating a plurality of propulsion devices 2, 3, 10A, 10B including the mooring machines 10A, 10B.
- the thrust is preferentially distributed to the mooring machines 10A and 10B, and while the hull 5 is moved mainly by the tension of the mooring line R, the insufficient thrust is generated by the propulsion machines 2 and 3.
- a plurality of propulsion devices 2, 3, 10A, 10B can be operated to supplement the situation.
- the ship maneuvering controller 6 is configured to estimate the thrust output by the mooring machines 10A and 10B based on the tension of the mooring line R of the mooring machines 10A and 10B. Have a model.
- a ship motion model configured to estimate the thrust output by the mooring machines 10A and 10B based on the tension of the mooring line R of the mooring machines 10A and 10B is used. Determine the thrust to be distributed to the mooring machines 10A and 10B.
- the thrust acting on the hull 5 due to the tension of the mooring line R is estimated using the hull motion model, so that more accurate behavior of the hull 5 can be obtained even in a complicated system, and this is used as the thrust distribution. Can be used for.
Abstract
Description
船体の前後方向のいずれにも推力を出力可能な前後推進機と、
前記船体の横方向のいずれにも推力を出力可能な横推進機と、
前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機と、
前記前後推進機、前記横推進機、及び前記係船機の動作を制御する操船コントローラとを備え、
前記操船コントローラは、前記船体を岸壁に接岸させる際に、前記係船索が前記岸壁に設けられた係船柱に係止された状態で前記係船機に前記係船索の巻取り動作を行わせると同時に、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を軽減させる推力を出力させることを特徴としている。
船体の前後方向のいずれにも推力を出力可能な前後推進機と、前記船体の横方向のいずれにも推力を出力可能な横推進機と、前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機とを搭載した船舶の操船方法であって、
前記船体を岸壁に接岸させる際に、前記係船索が前記岸壁に設けられた係船柱に係止された状態で前記係船機に前記係船索の巻取り動作を行わせると同時に、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を軽減させる推力を出力させることを特徴としている。
船体の前後方向のいずれにも推力を出力可能な前後推進機と、
前記船体の横方向のいずれにも横推力を出力可能な横推進機と、
前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機と、
前記係船機を前記係船索の張力に対応する推力を出力する推進デバイスと見做し、前記前後推進機、前記横推進機、及び前記係船機を含む複数の推進デバイスの動作を制御する操船コントローラとを備え、
前記操船コントローラは、前記船体に作用させる指令推力を向きと大きさで表した指令ベクトルを取得し、前記複数の推進デバイスの各々に前記指令ベクトルに対応する推力を配分し、前記複数の推進デバイスの各々から配分された推力が出力されるように前記複数の推進デバイスを制御することを特徴としている。
船体の前後方向のいずれにも推力を出力可能な前後推進機と、前記船体の横方向のいずれにも推力を出力可能な横推進機と、前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機とを搭載した船舶の操船方法であって、
前記船体に作用させる指令推力を向きと大きさで表した指令ベクトルを取得すること、
前記係船機を前記係船索の張力に対応する推力を出力する推進デバイスと見做し、前記前後推進機、前記横推進機、及び前記係船機を含む複数の推進デバイスの各々に前記指令ベクトルに対応する推力を配分すること、及び、
前記複数の推進デバイスの各々から配分された推力が出力されるように前記複数の推進デバイスを制御すること、を含むことを特徴としている。
船体の前後方向のいずれにも推力を出力可能な前後推進機と、
前記船体の横方向のいずれにも推力を出力可能な横推進機と、
前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機と、
前記前後推進機、前記横推進機、及び前記係船機の動作を制御する操船コントローラとを備え、
前記操船コントローラは、前記船体を岸壁に接岸させる際に、前記係船索が前記岸壁に設けられた係船柱に係止された状態で前記係船機に前記係船索の巻取り動作を行わせると同時に、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を所定の閾値以下とする推力を出力させることを特徴としている。
図1に示すように、船舶Sを基準とし、当該船舶Sの船首と船尾を繋ぐ水平方向を「前後方向」とし、前後方向と直交する水平方向(左右方向)を「横方向」とする。船舶Sは、船体5と、船体5に対し前後方向の推力を出力する少なくとも1つの前後推進機2と、船体5に対し横方向の推力を出力する少なくとも1つの横推進機3とを備える。
図3は、操船システム20の構成を示す図である。図3に示すように、船舶Sの操船システム20は、操船コントローラ6と、操船コントローラ6と電気的に有線又は無線で接続された計器群7、ユーザーインターフェース8、及び操船機器群9とを備える。
ここで上記構成の操船システム20を用いた船舶Sの着岸・係船時の操船方法について、図6を用いて説明する。
操船コントローラ6は、船首側係船機10B及び船尾側係船機10Aの係船索Rの張力に基づいて船首側係船機10B及び船尾側係船機10Aが出力する推力を推定するように構成された船体運動モデルを有する。図7に示すように、船体運動モデルは、各係船索Rについて、船体5を基準としたウインチWから見て最も先端側に配置された案内器36の位置である入力点78の座標を有する。操船コントローラ6は、船体運動モデルに、船体5の喫水と、船体5の位置と、係船柱35への係止位置である岸壁側係留点77の座標と、係船索Rの張力とを入力することによって、入力点78に作用する推力の三方向(前後方向、横方向、及び鉛直方向)の成分を推定することができる。また、操船コントローラ6は、船体運動モデルを用いて入力点78に作用する推力による船体5の挙動をシミュレーションにより推定することができる。操船コントローラ6は、船体運動モデルを用いた演算結果に基づいて、船首側係船機10B及び船尾側係船機10Aに配分される推力を決定することができる。
計算を単純化するために、船体5を水平面内で操縦制御するものとして(x,y,z)の3自由度で取り扱う。この3自由度に対してジョイスティック81と回頭ダイヤル82とで受け付けた推力指令を前後方向推力指令(xd)、横方向推力指令(yd)、及び回頭モーメント指令(φd)に割り当て、指令ベクトルXdを次式1によって表す。なお、上記実施形態では、修正された指令ベクトルから推力ベクトルを求めることから、以下の指令ベクトルXdを修正された指令ベクトルと読み替える。式1~4中のX,Xd,A,A*,Xkはベクトル又は行列を表す。
Xd=A・X ・・・(式3)
X=A*・Xd+Xk ・・・(式4)
A*・Xk=0 ・・・(式5)
以上に説明したように、本実施形態に係る操船システム20は、
船体5の前後方向のいずれにも推力を出力可能な少なくとも1つの前後推進機2と、
船体5の横方向のいずれにも推力を出力可能な少なくとも1つの横推進機3と、
船体5の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索Rの巻取りと繰り出しとが可能な係船機10A,10Bと、
前後推進機2、横推進機3、及び係船機10A,10Bの動作を制御する操船コントローラ6とを備える。
そして、操船コントローラ6が、船体5を岸壁に接岸させる際に、係船索Rが岸壁に設けられた係船柱35に係止された状態で係船機10A,10Bに係船索Rの巻取り動作を行わせると同時に、前後推進機2及び横推進機3のうち少なくとも一方に係船索Rの張力を軽減させるような推力を出力させるように構成されていることを特徴としている。
船体5を岸壁に接岸させる際に、係船索Rが岸壁に設けられた係船柱35に係止された状態で係船機10A,10Bに係船索Rの巻取り動作を行わせると同時に、前後推進機2及び横推進機3のうち少なくとも一方に係船索Rの張力を軽減させるような推力を出力させることを特徴としている。
船体5の前後方向のいずれにも推力を出力可能な少なくとも1つの前後推進機2と、船体5の横方向のいずれにも推力を出力可能な少なくとも1つの横推進機3と、
船体5の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索Rの巻取りと繰り出しとが可能な係船機10A,10Bと、
係船機10A,10Bを係船索Rの張力に対応する推力を出力する推進デバイスと見做し、前後推進機2、横推進機3、及び係船機10A,10Bを含む複数の推進デバイス2,3,10A,10Bの動作を制御する操船コントローラ6とを備える。
そして、操船コントローラ6が、船体5に作用させる指令推力を向きと大きさで表した指令ベクトルを取得し、複数の推進デバイス2,3,10A,10Bの各々に指令ベクトルに対応する推力を配分し、複数の推進デバイス2,3,10A,10Bの各々から配分された推力が出力されるように複数の推進デバイス2,3,10A,10Bを制御することを特徴としている。ここで、操船コントローラ6は、複数の推進デバイス2,3,10A,10Bの各々から出力される推力の合成力を向きと大きさで表した推力ベクトルが指令ベクトルと対応するように複数の推進デバイス2,3,10A,10Bの各々に推力を配分するように構成されていてよい。
船体5に作用させる指令推力を向きと大きさで表した指令ベクトルを取得すること、
係船機10A,10Bを係船索Rの張力に対応する推力を出力する推進デバイスと見做し、前後推進機2、横推進機3、及び係船機10A,10Bを含む複数の推進デバイス2,3,10A,10Bの各々に指令ベクトルに対応する推力を配分すること、及び、
複数の推進デバイス2,3,10A,10Bの各々から配分された推力が出力されるように複数の推進デバイス2,3,10A,10Bを制御すること、を含む。ここで、上記の配分することが、複数の推進デバイス2,3,10A,10Bの各々から出力される推力の合成力を向きと大きさで表した推力ベクトルが指令ベクトルと対応するように複数の推進デバイス2,3,10A,10Bの各々に推力を配分することを含んでいてよい。
3 :横推進機(推進デバイス)
3A :船尾側横推進機(推進デバイス)
3B :船首側横推進機(推進デバイス)
5 :船体
6 :操船コントローラ
7 :計器群
8 :ユーザーインターフェース
9 :操船機器群
10 :係船機(推進デバイス)
10A :船尾側係船機(推進デバイス)
10B :船首側係船機(推進デバイス)
20 :操船システム
26 :船位測定装置
27 :距離計
81 :ジョイスティック
P2 :着岸開始位置
P3 :係船開始位置
R :係船索
S :船舶
Claims (21)
- 船体の前後方向のいずれにも推力を出力可能な前後推進機と、
前記船体の横方向のいずれにも推力を出力可能な横推進機と、
前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機と、
前記前後推進機、前記横推進機、及び前記係船機の動作を制御する操船コントローラとを備え、
前記操船コントローラは、前記船体を岸壁に接岸させる際に、前記係船索が前記岸壁に設けられた係船柱に係止された状態で前記係船機に前記係船索の巻取り動作を行わせると同時に、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を軽減させる推力を出力させる、
操船システム。 - 前記係船索の張力を測定する張力計を更に備え、
前記操船コントローラは、前記張力計で測定される前記係船索の張力が0より大きく且つ前記係船機の最大巻込力より小さい所定の閾値以下の範囲に維持されるように、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を軽減させる推力を出力させる、
請求項1に記載の操船システム。 - 船体の前後方向のいずれにも推力を出力可能な前後推進機と、
前記船体の横方向のいずれにも横推力を出力可能な横推進機と、
前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機と、
前記係船機を前記係船索の張力に対応する推力を出力する推進デバイスと見做し、前記前後推進機、前記横推進機、及び前記係船機を含む複数の推進デバイスの動作を制御する操船コントローラとを備え、
前記操船コントローラは、前記船体に作用させる指令推力を向きと大きさで表した指令ベクトルを取得し、前記複数の推進デバイスの各々に前記指令ベクトルに対応する推力を配分し、前記複数の推進デバイスの各々から配分された推力が出力されるように前記複数の推進デバイスを制御する、
操船システム。 - 前記操船コントローラは、前記複数の推進デバイスの各々から出力される推力の合成力を向きと大きさで表した推力ベクトルが前記指令ベクトルと対応するように前記複数の推進デバイスの各々に推力を配分する、
請求項3に記載の操船システム。 - 操作を受け付けて前記操船コントローラへ入力するジョイスティックを備え、
前記操船コントローラは、前記ジョイスティックの傾倒角度を前記指令ベクトルの大きさとし前記ジョイスティックの傾倒方向を前記指令ベクトルの向きとし、前記ジョイスティックが受け付けた操作に対応した前記指令ベクトルを取得する、
請求項3又は4に記載の操船システム。 - 前記船体の接岸距離を計測する距離計と、
前記船体の船位を測定する船位測定装置とを備え、
前記操船コントローラは、前記接岸距離と前記船位とに基づいて前記指令ベクトルを生成する、
請求項3に記載の操船システム。 - 前記操船コントローラは、前記船体のおかれた環境の風向、風速、及び潮流を含む外乱情報を取得し、前記外乱情報に基づいて前記船体に作用する外乱力を推定し、前記外乱力で前記指令ベクトルを修正する、
請求項3~6のいずれか一項に記載の操船システム。 - 前記操船コントローラは、前記船体を岸壁に着岸及び係船する際に、所定の着岸開始位置から当該着岸開始位置よりも前記岸壁に近い係船開始位置へ前記船体を移動させる着岸操船と、前記係船開始位置から前記岸壁に接岸するまで前記船体を移動させる係船操船とを行い、前記着岸操船において前記係船機に配分される推力がゼロとなるように前記複数の推進デバイスの各々に推力を配分する、
請求項3~7のいずれか一項に記載の操船システム。 - 前記操船コントローラは、前記係船操船において、前記複数の推進デバイスのうち前記係船機に余の推進デバイスに対して優先的に推力が配分されるように前記複数の推進デバイスの各々に推力を配分する、
請求項8に記載の操船システム。 - 前記操船コントローラは、前記係船機の前記係船索の張力に基づいて前記係船機が出力する推力を推定するように構成された船体運動モデルを有する、
請求項3~9のいずれか一項に記載の操船システム。 - 船体の前後方向のいずれにも推力を出力可能な前後推進機と、前記船体の横方向のいずれにも推力を出力可能な横推進機と、前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機とを搭載した船舶の操船方法であって、
前記船体を岸壁に接岸させる際に、前記係船索が前記岸壁に設けられた係船柱に係止された状態で前記係船機に前記係船索の巻取り動作を行わせると同時に、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を軽減させる推力を出力させる、
操船方法。 - 前記係船索の張力が0より大きく且つ前記係船機の最大巻込力より小さい所定の閾値以下の範囲に維持されるように、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を軽減させる推力を出力させる、
請求項11に記載の操船方法。 - 船体の前後方向のいずれにも推力を出力可能な前後推進機と、前記船体の横方向のいずれにも推力を出力可能な横推進機と、前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機とを搭載した船舶の操船方法であって、
前記船体に作用させる指令推力を向きと大きさで表した指令ベクトルを取得すること、
前記係船機を前記係船索の張力に対応する推力を出力する推進デバイスと見做し、前記前後推進機、前記横推進機、及び前記係船機を含む複数の推進デバイスの各々に前記指令ベクトルに対応する推力を配分すること、及び、
前記複数の推進デバイスの各々から配分された推力が出力されるように前記複数の推進デバイスを制御すること、を含む、
操船方法。 - 前記配分することが、前記複数の推進デバイスの各々から出力される推力の合成力を向きと大きさで表した推力ベクトルが前記指令ベクトルと対応するように前記複数の推進デバイスの各々に推力を配分することを含む、
請求項13に記載の操船方法。 - 前記指令ベクトルを取得することが、ジョイスティックの傾倒角度を前記指令ベクトルの大きさとし前記ジョイスティックの傾倒方向を前記指令ベクトルの向きとし、前記ジョイスティックが受け付けた操作に対応した前記指令ベクトルを取得することを含む、
請求項13又は14に記載の操船方法。 - 前記指令ベクトルを取得することが、前記船体の接岸距離を計測すること、前記船体の船位を測定することと、及び、前記接岸距離と前記船位に基づいて前記指令ベクトルを生成すること、を含む、
請求項13又は14に記載の操船方法。 - 前記指令ベクトルを取得することが、前記船体のおかれた環境の風向、風速、及び潮流を含む外乱情報を取得すること、前記外乱情報に基づいて前記船体に作用する外乱力を推定すること、及び、前記外乱力で前記指令ベクトルを修正すること、を含む、
請求項13~16のいずれか一項に記載の操船方法。 - 前記船体を岸壁に着岸及び係船する際に、所定の着岸開始位置から当該着岸開始位置よりも前記岸壁に近い係船開始位置へ前記船体を移動させる着岸操船と、前記係船開始位置から前記岸壁に接岸するまで前記船体を移動させる係船操船とを行い、
前記着岸操船において前記係船機に配分される推力がゼロとなるように前記複数の推進デバイスの各々に推力を配分する、
請求項13~17のいずれか一項に記載の操船方法。 - 前記係船操船において、前記複数の推進デバイスのうち前記係船機に余の推進デバイスに対して優先的に推力が配分されるように前記複数の推進デバイスの各々に推力を配分する、
請求項18に記載の操船方法。 - 前記係船機の前記係船索の張力に基づいて前記係船機が出力する推力を推定するように構成された船体運動モデルを用いて、前記係船機に配分される推力を決定する、
請求項13~19のいずれか一項に記載の操船方法。 - 船体の前後方向のいずれにも推力を出力可能な前後推進機と、
前記船体の横方向のいずれにも推力を出力可能な横推進機と、
前記船体の船尾側と船首側の各々に少なくとも1つずつ配置された、係船索の巻取りと繰り出しとが可能な係船機と、
前記前後推進機、前記横推進機、及び前記係船機の動作を制御する操船コントローラとを備え、
前記操船コントローラは、前記船体を岸壁に接岸させる際に、前記係船索が前記岸壁に設けられた係船柱に係止された状態で前記係船機に前記係船索の巻取り動作を行わせると同時に、前記前後推進機及び前記横推進機のうち少なくとも一方に前記係船索の張力を所定の閾値以下とする推力を出力させる、
操船システム。
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JP5442071B2 (ja) * | 2012-07-04 | 2014-03-12 | ジャパンマリンユナイテッド株式会社 | 操船制御装置、自動操船制御システム、操船制御方法、及びプログラム |
JP2019512428A (ja) * | 2016-03-31 | 2019-05-16 | エー・ピー・モラー−マースク エー/エス | 1隻または複数隻のタグボートを操作する方法およびシステム |
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2021
- 2021-11-26 EP EP21900507.1A patent/EP4257471A1/en active Pending
- 2021-11-26 KR KR1020237021877A patent/KR20230110622A/ko unknown
- 2021-11-26 JP JP2022566887A patent/JPWO2022118753A1/ja active Pending
- 2021-11-26 WO PCT/JP2021/043400 patent/WO2022118753A1/ja unknown
- 2021-11-26 CN CN202180061985.7A patent/CN116075462A/zh active Pending
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JPS6094889A (ja) * | 1983-10-31 | 1985-05-28 | Mitsubishi Heavy Ind Ltd | 係船装置 |
JPH11129978A (ja) * | 1997-10-29 | 1999-05-18 | Mitsui Zosen Akishima Kenkyusho:Kk | 係留船舶の動揺抑制方法および装置 |
JP2002244543A (ja) * | 2001-02-13 | 2002-08-30 | Mitsubishi Heavy Ind Ltd | 模擬運転装置、模擬運転方法、及び、模擬運転ユニット |
JP2005255058A (ja) | 2004-03-12 | 2005-09-22 | Shin Kurushima Dockyard Co Ltd | 船舶の自動着桟係船装置および自動着桟係船方法 |
JP5442071B2 (ja) * | 2012-07-04 | 2014-03-12 | ジャパンマリンユナイテッド株式会社 | 操船制御装置、自動操船制御システム、操船制御方法、及びプログラム |
JP2019512428A (ja) * | 2016-03-31 | 2019-05-16 | エー・ピー・モラー−マースク エー/エス | 1隻または複数隻のタグボートを操作する方法およびシステム |
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DOI MASAYOSHI, NAGAMOTO KAZUHISA, IDENAWA KENICHI, MORI YASUCHIKA: "Consideration Regarding Automation of Controllable Pitch Propeller for Mooring Pier in Stormy Weather", TRANSACTIONS OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 49, no. 3, 1 January 2013 (2013-01-01), JP , pages 336 - 344, XP055936657, ISSN: 0453-4654, DOI: 10.9746/sicetr.49.336 * |
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WO2024029205A1 (ja) * | 2022-08-04 | 2024-02-08 | 川崎重工業株式会社 | 係船索張力監視システム |
Also Published As
Publication number | Publication date |
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KR20230110622A (ko) | 2023-07-24 |
CN116075462A (zh) | 2023-05-05 |
EP4257471A1 (en) | 2023-10-11 |
JPWO2022118753A1 (ja) | 2022-06-09 |
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