Method and device for determining ship departure standard, electronic equipment and storage medium

Abstract

The invention provides a ship off-shore standard determination method and device, electronic equipment and a storage medium, and belongs to the technical field of coastal engineering.The method comprises the steps that the characteristic wave height, the average wave period, the deepwater wavelength corresponding to the average wave period, the displacement corresponding to the full-load capacity of a ship and the ship width during ship off-shore operation are obtained; the maximum mooring force of the ship is determined based on the characteristic wave height, the average wave period, the deepwater wavelength corresponding to the average wave period, the displacement corresponding to the full-load capacity of the ship and the ship width during offshore operation of the ship; based on the maximum mooring force of the ship, the off-berthing wave height of the ship is determined, and the off-berthing standard of the ship is determined based on the off-berthing wave height of the ship. According to the method, related factors such as the characteristic wave height, the average wave period, the deepwater wavelength corresponding to the average wave period, the displacement corresponding to the full-load capacity of the ship, the ship width and the like during offshore operation of the ship are comprehensively considered, and therefore the purpose of accurately determining the ship off-shore standard is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of coastal engineering, and in particular to a method, device, electronic equipment and storage medium for determining a ship's unmooring standard. Background Art

[0002] The ship's unmooring standard mainly includes the ship's unmooring wave height. In order to obtain the offshore operation standards of various ships under their specific mooring arrangements, it is necessary to determine the ship's unmooring wave height. However, the ship's unmooring wave height is affected by many environmental factors. At present, there is a lack of research in this area, which makes it impossible to accurately determine the ship's unmooring wave height, and thus it is impossible to accurately determine the ship's unmooring standard. Summary of the invention

[0003] In view of this, it is necessary to provide a method, device, electronic device and storage medium for determining the ship's departure standard, so as to achieve the purpose of accurately determining the ship's departure standard.

[0004] In order to solve the above problems, on the one hand, the present invention provides a method for determining a ship's departure standard, comprising: Obtain the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded ship, and ship width when the ship is operating offshore; The maximum mooring force of the ship is determined based on the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; Based on the maximum mooring force of the ship, the wave height for leaving the berth of the ship is determined, and based on the wave height for leaving the berth of the ship, the ship's leaving the berth standard is determined.

[0005] In a possible implementation, the maximum mooring force of the ship is calculated based on the following formula:

[0006] in, F max It represents the maximum mooring force of the ship. H represents the characteristic wave height, T represents the average wave period, L 0 represents the deep water wavelength corresponding to the average wave period, W Indicates the displacement corresponding to the fully loaded capacity of the ship. B Indicates the width of the ship. Q and c are the coefficients calibrated through experiments.

[0007] In a possible implementation, when the ship type is an oil tanker, the ship's fully loaded capacity is 300,000 tons, and the wave type is a beam wave, Q=0.014, c =1.738; When the ship type is an oil tanker, the ship's fully loaded capacity is 300,000 tons, and the wave type is a favorable wave, Q =0.0054, c =1.651; When the ship type is an oil tanker, the ship's fully loaded capacity is 150,000 tons, and the wave type is beam wave, Q =0.048, c =1.601; When the ship type is an oil tanker, the ship's fully loaded capacity is 150,000 tons, and the wave type is a favorable wave, Q =0.013, c =1.462; When the ship type is an oil tanker, the ship's fully loaded capacity is 50,000 tons, and the wave type is beam wave, Q =0.049, c =1.688; When the ship type is an oil tanker, the ship's fully loaded capacity is 50,000 tons, and the wave type is a favorable wave, Q =0.026, c =1.302; When the ship type is an oil tanker, the ship's fully loaded capacity is 10,000 tons, and the wave type is beam wave, Q =0.39, c =1.351; When the ship type is an oil tanker, the ship's fully loaded capacity is 10,000 tons, and the wave type is a favorable wave, Q =0.06, c =1.521.

[0008] In a possible implementation, when the ship type is an LNG ship, the ship's fully loaded capacity is 266,000 cubic meters, and the wave type is a beam wave, Q =0.029, c =1.562; When the ship type is LNG ship, the ship's fully loaded capacity is 266,000 cubic meters, and the wave type is following waves, Q =0.01, c =1.756; When the ship type is LNG ship, the ship's fully loaded capacity is 170,000 cubic meters, and the wave type is beam wave, Q =0.029, c =1.633; When the ship type is LNG ship, the ship's fully loaded capacity is 170,000 cubic meters, and the wave type is following waves, Q =0.01, c =1.725; When the ship type is LNG ship, the ship's fully loaded capacity is 80,000 cubic meters, and the wave type is beam wave, Q =0.031, c =1.652; When the ship type is LNG ship, the ship's fully loaded capacity is 80,000 cubic meters, and the wave type is following waves, Q =0.011, c =1.655.

[0009] In a possible implementation, when the ship type is a bulk carrier or a barge, the fully loaded capacity of the ship is 300,000 tons, and the wave type is a beam wave, Q =0.026, c =1.674; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 300,000 tons, and the wave type is a favorable wave, Q =0.007, c =1.527; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 150,000 tons, and the wave type is beam wave, Q =0.033, c =1.756; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 150,000 tons, and the wave type is a favorable wave, Q =0.011, c =1.531; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 50,000 tons, and the wave type is beam wave, Q =0.071, c =1.577; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 50,000 tons, and the wave type is a favorable wave, Q =0.013, c =1.703; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 10,000 tons, and the wave type is beam wave, Q =0.694, c =1.273; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 10,000 tons, and the wave type is a favorable wave, Q =0.056, c =1.823; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 12,000 tons, and the wave type is beam wave, Q =0.934, c =1.171; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 12,000 tons, and the wave type is a favorable wave, Q =0.094, c =1.873.

[0010] In a possible implementation, determining the wave height of the ship leaving the berth based on the maximum mooring force of the ship includes: Determine the cable tension control value based on the maximum mooring force of the ship; Based on the cable tension control value, the ship's unberthing wave height is determined.

[0011] In a possible implementation, determining the wave height of the ship leaving the berth based on the cable tension control value includes: The wave height of the ship leaving the mooring is determined based on the cable tension control value and the corresponding unmooring period.

[0012] On the other hand, the present invention also provides a device for determining a ship's unberthing standard, comprising: An acquisition module is used to obtain characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and ship width when the ship is operating offshore; The mooring force calculation module is used to determine the maximum mooring force of the ship based on the characteristic wave height, the average wave period, the deep water wavelength corresponding to the average wave period, the displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; The mooring wave height calculation module is used to determine the ship's mooring wave height based on the ship's maximum mooring force, and determine the ship's mooring standard based on the ship's mooring wave height.

[0013] On the other hand, the present invention also provides an electronic device, including a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps of the method for determining the ship departure standard as described in any one of the above.

[0014] On the other hand, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the method for determining the ship departure standard as described in any one of the above items are implemented.

[0015] The beneficial effects of adopting the above implementation mode are as follows: the method, device, electronic device and storage medium for determining the ship's unmooring standard provided by the present invention obtain the characteristic wave height, average wave period, deep-water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship and the ship width when the ship is operating offshore; based on the characteristic wave height, average wave period, deep-water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship and the ship width when the ship is operating offshore, the maximum mooring force of the ship is determined; based on the maximum mooring force of the ship, the ship's unmooring wave height is determined, and the ship's unmooring standard is determined based on the ship's unmooring wave height. The present invention comprehensively considers relevant factors such as the characteristic wave height, average wave period, deep-water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship and the ship width when the ship is operating offshore, and comprehensively determines the ship's unmooring wave height, with higher accuracy, thereby achieving the purpose of accurately determining the ship's unmooring standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A flow chart of an embodiment of a method for determining a ship departure standard provided by the present invention; Figure 2 A principle block diagram of an embodiment of a device for determining a ship's unberthing standard provided by the present invention; Figure 3 A schematic structural diagram of an embodiment of an electronic device provided by the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] In the description of the embodiments of the present application, unless otherwise specified, “plurality” means two or more than two.

[0020] The terms "including" and "having" and any variations thereof in the embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules not clearly listed or inherent to these processes, methods, products or equipment.

[0021] The naming or numbering of the steps in the embodiments of the present invention does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0022] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The present invention provides a method, device, electronic device and storage medium for determining a ship's unberthing standard, which are described below respectively.

[0024] like Figure 1 As shown, the present invention provides a method for determining a ship's departure standard, comprising: S101, obtaining characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and ship width when the ship is operating offshore; S102, determining the maximum mooring force of the ship based on the characteristic wave height, the average wave period, the deep water wavelength corresponding to the average wave period, the displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; S103: determining the wave height for leaving the berth of the ship based on the maximum mooring force of the ship, and determining the ship's leaving berth standard based on the wave height for leaving the berth of the ship.

[0025] It is understandable that in order to obtain the offshore operation standards of various ships under their specific mooring arrangements, it is necessary to establish the relationship between the maximum cable tension and wave elements. To this end, the changes in the tension of all cables with the period under the action of waves of different wave heights measured in various working conditions such as transverse waves and following waves are comprehensively analyzed. Considering its outer envelope as the maximum tension value generated by all cables under specific mooring arrangements, its changes are fitted and analyzed, and the calculation formula for the maximum mooring force under the specific mooring arrangement conditions can be obtained.

[0026] The research results show that under the same wave height, the outer envelope value increases with the increase of period. Generally speaking, the maximum tension of the ship's mooring rope is related to the movement of the ship. Under a specific mooring method, its value depends on factors such as wave elements and the relative width of the ship. It is similar to the definition of impact energy below, and the impact energy calculation formula given in the reference specification is used.

[0027] In some embodiments, the maximum mooring force of the vessel is calculated based on the following formula:

[0028] in, F max It represents the maximum mooring force of the ship. H Represents the characteristic wave height H 4% , T represents the average period of the wave, L 0 represents the deep water wavelength corresponding to the average wave period, W Indicates the displacement corresponding to the fully loaded capacity of the ship. B Indicates the width of the ship. Q and c are the coefficients calibrated through experiments.

[0029] In some embodiments, when the ship type is an oil tanker, the fully loaded capacity of the ship is 300,000 tons, and the wave type is a beam wave, Q =0.014, c =1.738; When the ship type is an oil tanker, the ship's fully loaded capacity is 300,000 tons, and the wave type is a favorable wave, Q =0.0054, c =1.651; When the ship type is an oil tanker, the ship's fully loaded capacity is 150,000 tons, and the wave type is beam wave, Q =0.048, c =1.601; When the ship type is an oil tanker, the ship's fully loaded capacity is 150,000 tons, and the wave type is a favorable wave, Q =0.013, c =1.462; When the ship type is an oil tanker, the ship's fully loaded capacity is 50,000 tons, and the wave type is beam wave, Q =0.049, c =1.688; When the ship type is an oil tanker, the ship's fully loaded capacity is 50,000 tons, and the wave type is a favorable wave, Q =0.026, c =1.302; When the ship type is an oil tanker, the ship's fully loaded capacity is 10,000 tons, and the wave type is beam wave, Q =0.39, c =1.351; When the ship type is an oil tanker, the ship's fully loaded capacity is 10,000 tons, and the wave type is a favorable wave, Q =0.06, c =1.521.

[0030] It is understood that the departure criteria for oil tankers are expressed in terms of wave height and period: The outer envelope cable tension after dimensionless transformation based on wave height and period under the action of beam and following waves varies with relative ship width L 0 / B The power exponential function form is used to fit the changes in the situation, and the calculation formulas for the maximum mooring force of 300,000-ton, 150,000-ton, 50,000-ton and 10,000-ton oil tankers are obtained as follows:

[0031] In the formula, H Characteristic wave height H 4% , T is the average period of the waves, L 0 is the deep water wavelength corresponding to the average period, W is the displacement corresponding to the fully loaded capacity of the ship, B The width of the ship.

[0032] Considering that the control value of the mooring force of oil tankers is generally taken as 55% of the breaking force of the cable, for Φ=75mm nylon cable, its breaking force is 800kN, that is, its control value should be 440kN. For the convenience of application, based on the above calculation formula, the distribution diagrams of the maximum cable tension of 300,000-ton, 150,000-ton, 50,000-ton and 10,000-ton oil tankers with wave height and period can be given respectively. According to the design wave, the maximum cable tension can be determined from the diagram. Therefore, according to the specified cable force value, the unmooring standard based on wave height and period can be determined.

[0033] Furthermore, Table 1 gives the corresponding wave heights for different periods when the mooring force of four tonnage oil tankers corresponds to the cable tension control value of 440kN. It should be noted that, similar to the above description of the operation control wave height, if calculated according to the above formula, when the period is small, the wave height for berthing determined by the mooring force control value is large, considering the complexity of its influencing factors, and the wave height for berthing control is generally larger than the wave height for operation control, when the period is small, the maximum value of the wave height for berthing control is recommended to be H4%=3.5m.

[0034] The wave height at mooring departure corresponding to the mooring force control value decreases with the increase of the period, but the change trend of the wave height at mooring departure becomes slower when the period is larger. In addition, the wave height at mooring departure in following waves is significantly greater than that at mooring departure in transverse waves.

[0035] Table 1: Mooring force of oil tanker corresponding to cable tension control value of 440kN corresponding to standard wave height H4% (m) at different periods

[0036] In some embodiments, when the ship type is an LNG ship, the fully loaded capacity of the ship is 266,000 cubic meters, and the wave type is a beam wave, Q =0.029, c =1.562; When the ship type is LNG ship, the ship's fully loaded capacity is 266,000 cubic meters, and the wave type is following waves, Q =0.01, c =1.756; When the ship type is LNG ship, the ship's fully loaded capacity is 170,000 cubic meters, and the wave type is beam wave, Q =0.029, c =1.633; When the ship type is LNG ship, the ship's fully loaded capacity is 170,000 cubic meters, and the wave type is following waves, Q =0.01, c =1.725; When the ship type is LNG ship, the ship's fully loaded capacity is 80,000 cubic meters, and the wave type is beam wave, Q =0.031, c =1.652; When the ship type is LNG ship, the ship's fully loaded capacity is 80,000 cubic meters, and the wave type is following waves, Q =0.011, c =1.655.

[0037] It is understood that the departure standards for LNG ships are expressed in terms of wave height and period: The same analysis method is used to calculate the relative ship width of the outer envelope cable tension after dimensionless transformation of wave height and period under the action of transverse and parallel waves. L 0 / B According to the changes in the above data, the maximum mooring force calculation formulas for LNG ships with a capacity of 266,000 cubic meters, 170,000 cubic meters and 80,000 cubic meters are obtained as follows:

[0038] Similarly, the breaking force of Φ=75mm nylon cable is 800kN, that is, its control value should be 440kN. Based on the above calculation formula, the contour distribution diagrams of the maximum cable tension of 266,000 cubic meters, 170,000 cubic meters and 80,000 cubic meters LNG ships with wave height and period can be given respectively. The maximum cable tension can be determined from the diagram according to the design wave. Therefore, the unberthing standard based on wave height and period can be determined according to the specified cable force value.

[0039] Furthermore, Table 2 shows the corresponding wave heights for different periods when the mooring force of the LNG (liquefied natural gas) ship corresponds to the cable tension control value of 440 kN. When the period is small, the wave height for mooring determined by the mooring force control value is larger. Similarly, considering the complexity of its influencing factors, the maximum controlled wave height is taken as H 4% =3.5m.

[0040] Consistent with the test results of oil tankers, the wave height at berthing corresponding to the mooring force control value decreases with the increase of the period, but the change trend of the wave height at berthing slows down when the period is large; the wave height at berthing for ships with smaller cabin capacity is greater than that for larger ships. In addition, the wave height at berthing in following waves is significantly greater than that in beam waves.

[0041] Compared with the standard operating wave height determined by the aforementioned motion control standard, the standard unmooring wave height corresponding to different periods when the mooring force corresponds to the cable tension control value of 440kN is generally greater than the standard operating wave height determined based on the motion standard.

[0042] Table 2: Standard wave height H4% (m) for different periods when different mooring forces of LNG ships correspond to the cable tension control value of 440kN

[0043] In some embodiments, when the ship type is a bulk carrier or a barge, the fully loaded capacity of the ship is 300,000 tons, and the wave type is a beam wave, Q =0.026, c =1.674; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 300,000 tons, and the wave type is a favorable wave, Q =0.007, c =1.527; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 150,000 tons, and the wave type is beam wave, Q =0.033, c =1.756; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 150,000 tons, and the wave type is a favorable wave, Q =0.011, c =1.531; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 50,000 tons, and the wave type is beam wave, Q =0.071, c =1.577; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 50,000 tons, and the wave type is a favorable wave, Q =0.013, c =1.703; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 10,000 tons, and the wave type is beam wave, Q =0.694, c =1.273; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 10,000 tons, and the wave type is a favorable wave, Q =0.056, c =1.823; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 12,000 tons, and the wave type is beam wave, Q =0.934, c =1.171; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 12,000 tons, and the wave type is a favorable wave, Q =0.094, c =1.873.

[0044] It is understood that the departure criteria for bulk carriers and barges are expressed in terms of wave height and period: Using a similar method, the wave heights of bulk carriers and barges at berthing were analyzed, and the maximum mooring force calculation formulas for 300,000-ton, 150,000-ton, 50,000-ton and 10,000-ton bulk carriers and 12,000-ton barges were obtained, namely:

[0045] The control value of Φ=75mm nylon cable should be 440kN (i.e. 55% of the breaking force). Based on the above calculation formula, the equal distribution diagrams of the maximum cable tension of 300,000-ton, 150,000-ton, 50,000-ton and 10,000-ton bulk carriers and 12,000-ton barges with wave height and period can be given respectively. The maximum cable tension can be determined from the diagram according to the design wave. Therefore, the unberthing standard based on wave height and period can be determined according to the specified cable force value.

[0046] Furthermore, Table 3 shows the wave heights for mooring at different periods corresponding to the mooring force control value of 440 kN. It can be seen that the wave height for mooring at different periods corresponding to the mooring force control value decreases with the increase of the period, and the change trend of the wave height for mooring at a larger period slows down. The wave height for mooring at a following sea is significantly greater than the wave height for mooring at a transverse sea. Similarly, compared with the standard wave height for operation determined by the aforementioned motion control standard, the standard wave height for mooring at different periods corresponding to the mooring force control value of 440 kN is generally greater than the standard wave height for operation determined based on the motion standard.

[0047] Table 3: Standard wave height H4% (m) corresponding to different periods when the mooring force of bulk carrier corresponds to the cable tension control value of 440kN

[0048] In some embodiments, determining the wave height of the vessel away from the mooring based on the maximum mooring force of the vessel comprises: Determine the cable tension control value based on the maximum mooring force of the ship; Based on the cable tension control value, the ship's unberthing wave height is determined.

[0049] Further, based on the cable tension control value, the wave height of the ship leaving the berth is determined, including: The wave height of the ship leaving the mooring is determined based on the cable tension control value and the corresponding unmooring period.

[0050] like Figure 2 As shown, the present invention also provides a device 200 for determining a ship departure standard, comprising: An acquisition module 201 is used to acquire characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and ship width when the ship is operating offshore; The mooring force calculation module 202 is used to determine the maximum mooring force of the ship based on the characteristic wave height, the average wave period, the deep water wavelength corresponding to the average wave period, the displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; The mooring wave height calculation module 203 is used to determine the ship's mooring wave height based on the ship's maximum mooring force, and determine the ship's mooring standard based on the ship's mooring wave height.

[0051] The device for determining the ship departure standard provided in the above embodiment can implement the technical solution described in the above embodiment of the method for determining the ship departure standard. The specific implementation principles of the above modules or units can refer to the corresponding contents in the above embodiment of the method for determining the ship departure standard, which will not be repeated here.

[0052] like Figure 3As shown, the present invention also provides an electronic device 300. The electronic device 300 includes a processor 301, a memory 302 and a display 303. Figure 3 Only some components of the electronic device 300 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0053] In some embodiments, the memory 302 may be an internal storage unit of the electronic device 300, such as a hard disk or memory of the electronic device 300. In other embodiments, the memory 302 may also be an external storage device of the electronic device 300, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the electronic device 300.

[0054] Furthermore, the memory 302 may include both an internal storage unit of the electronic device 300 and an external storage device. The memory 302 is used to store application software installed in the electronic device 300 and various data.

[0055] In some embodiments, the processor 301 may be a central processing unit (CPU), a microprocessor or other data processing chip, used to run program codes or process data stored in the memory 302, such as the method for determining the ship departure standard in the present invention.

[0056] In some embodiments, the display 303 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 303 is used to display information on the electronic device 300 and to display a visual user interface. The components 301-303 of the electronic device 300 communicate with each other via a system bus.

[0057] In some embodiments of the present invention, when the processor 301 executes the ship departure standard determination program in the memory 302, the following steps may be implemented: Obtain the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded ship, and ship width when the ship is operating offshore; The maximum mooring force of the ship is determined based on the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; Based on the maximum mooring force of the ship, the wave height for leaving the berth of the ship is determined, and based on the wave height for leaving the berth of the ship, the ship's leaving the berth standard is determined.

[0058] It should be understood that: when the processor 301 executes the ship departure standard determination program in the memory 302, in addition to the above functions, other functions can also be implemented. For details, please refer to the description of the corresponding method embodiment above.

[0059] Furthermore, the embodiment of the present invention does not specifically limit the type of the electronic device 300 mentioned, and the electronic device 300 may be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of portable electronic devices include but are not limited to portable electronic devices equipped with IOS, Android, Microsoft or other operating systems. The above-mentioned portable electronic device may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 300 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0060] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the method for determining the ship departure standard provided by the above methods, the method comprising: Obtain the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded ship, and ship width when the ship is operating offshore; The maximum mooring force of the ship is determined based on the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; Based on the maximum mooring force of the ship, the wave height for leaving the berth of the ship is determined, and based on the wave height for leaving the berth of the ship, the ship's leaving the berth standard is determined.

[0061] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0062] The method, device, electronic device and storage medium for determining the ship departure standard provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for determining a ship's departure standard, characterized in that: include: Obtain the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded ship, and ship width when the ship is operating offshore; The maximum mooring force of the ship is determined based on the characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; Based on the maximum mooring force of the ship, the wave height for leaving the berth of the ship is determined, and based on the wave height for leaving the berth of the ship, the ship's leaving the berth standard is determined.

2. The method for determining the ship departure standard according to claim 1, characterized in that: The maximum mooring force of a ship is calculated based on the following formula: in, F max It represents the maximum mooring force of the ship. H represents the characteristic wave height, T represents the average wave period, L 0 represents the deep water wavelength corresponding to the average wave period, W Indicates the displacement corresponding to the fully loaded capacity of the ship. B Indicates the width of the ship. Q and γ are the coefficients calibrated through experiments.

3. The method for determining the ship departure standard according to claim 2, characterized in that: When the ship type is an oil tanker, the ship's fully loaded capacity is 300,000 tons, and the wave type is beam wave, Q =0.014, γ =1.738; When the ship type is an oil tanker, the ship's fully loaded capacity is 300,000 tons, and the wave type is a favorable wave, Q =0.0054, γ =1.651; When the ship type is an oil tanker, the ship's fully loaded capacity is 150,000 tons, and the wave type is beam wave, Q =0.048, γ =1.601; When the ship type is an oil tanker, the ship's fully loaded capacity is 150,000 tons, and the wave type is a favorable wave, Q =0.013, γ =1.462; When the ship type is an oil tanker, the ship's fully loaded capacity is 50,000 tons, and the wave type is beam wave, Q =0.049, γ =1.688; When the ship type is an oil tanker, the ship's fully loaded capacity is 50,000 tons, and the wave type is a favorable wave, Q =0.026, γ =1.302; When the ship type is an oil tanker, the ship's fully loaded capacity is 10,000 tons, and the wave type is beam wave, Q =0.39, γ =1.351; When the ship type is an oil tanker, the ship's fully loaded capacity is 10,000 tons, and the wave type is a favorable wave, Q =0.06, γ =1.

521.

4. The method for determining the ship departure standard according to claim 2, characterized in that: When the ship type is LNG ship, the ship's fully loaded capacity is 266,000 cubic meters, and the wave type is beam wave, Q =0.029, γ =1.562; When the ship type is LNG ship, the ship's fully loaded capacity is 266,000 cubic meters, and the wave type is following waves, Q =0.01, γ =1.756; When the ship type is an LNG ship, the ship's fully loaded capacity is 170,000 cubic meters, and the wave type is beam waves, Q =0.029, γ =1.633; When the ship type is LNG ship, the ship's fully loaded capacity is 170,000 cubic meters, and the wave type is following waves, Q =0.01, γ =1.725; When the ship type is LNG ship, the ship's fully loaded capacity is 80,000 cubic meters, and the wave type is beam wave, Q =0.031, γ =1.652; When the ship type is LNG ship, the ship's fully loaded capacity is 80,000 cubic meters, and the wave type is following waves, Q =0.011, γ =1.

655.

5. The method for determining the ship departure standard according to claim 2, characterized in that: When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 300,000 tons, and the wave type is beam wave, Q =0.026, γ =1.674; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 300,000 tons, and the wave type is a favorable wave, Q =0.007, γ =1.527; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 150,000 tons, and the wave type is beam wave, Q =0.033, γ =1.756; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 150,000 tons, and the wave type is a favorable wave, Q =0.011, γ =1.531; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 50,000 tons, and the wave type is beam wave, Q =0.071, γ =1.577; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 50,000 tons, and the wave type is a favorable wave, Q =0.013, γ =1.703; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 10,000 tons, and the wave type is beam wave, Q =0.694, γ =1.273; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 10,000 tons, and the wave type is a favorable wave, Q =0.056, γ =1.823; When the ship type is a bulk carrier or barge, the ship's fully loaded capacity is 12,000 tons, and the wave type is beam wave, Q =0.934, γ =1.171; When the ship type is a bulk carrier or barge, the fully loaded capacity of the ship is 12,000 tons, and the wave type is a favorable wave, Q =0.094, γ =1.

873.

6. The method for determining the ship departure standard according to any one of claims 1 to 5, characterized in that: Based on the maximum mooring force of the ship, determine the wave height of the ship leaving the mooring, including: Determine the cable tension control value based on the maximum mooring force of the ship; Based on the cable tension control value, the ship's unberthing wave height is determined.

7. The method for determining the ship departure standard according to claim 6, characterized in that: Based on the cable tension control value, the wave height of the ship leaving the mooring is determined, including: The wave height of the ship leaving the mooring is determined based on the cable tension control value and the corresponding unmooring period.

8. A device for determining a ship's departure standard, characterized in that: include: An acquisition module is used to obtain characteristic wave height, average wave period, deep water wavelength corresponding to the average wave period, displacement corresponding to the fully loaded capacity of the ship, and ship width when the ship is operating offshore; The mooring force calculation module is used to determine the maximum mooring force of the ship based on the characteristic wave height, the average wave period, the deep water wavelength corresponding to the average wave period, the displacement corresponding to the fully loaded capacity of the ship, and the ship width when the ship is operating offshore; The mooring wave height calculation module is used to determine the ship's mooring wave height based on the ship's maximum mooring force, and determine the ship's mooring standard based on the ship's mooring wave height.

9. An electronic device, characterized in that: comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory, and is used to execute the program stored in the memory to implement the steps of the method for determining the ship departure standard as described in any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for determining the ship departure standard according to any one of claims 1 to 7 are implemented.

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