Real-time monitoring and remote control device for water level of ship ballast water tank

Abstract

The invention discloses a ship ballast water tank water level real-time monitoring and remote control device, and relates to the field of ship ballast water tank water level control. According to the real-time monitoring and remote control device for the water level of the ship ballast water tank, a first data acquisition and analysis unit is used for acquiring water level monitoring data of each ballast water tank of a ship to be controlled in real time and analyzing the water level monitoring data to obtain an adjusted water level value; the second data acquisition and analysis unit is used for acquiring the ship state monitoring data and the sea condition monitoring data, analyzing to obtain a ship state water level regulation factor and a sea condition water level regulation factor, and analyzing to obtain a corresponding comprehensive water level regulation factor; the water level monitoring value of the corresponding ballast water tank is obtained through the comparison control unit, the water level monitoring value and the water level control interval are analyzed, and control measures are taken based on the analysis result so as to ensure that the water level of the ballast water tank can be corrected in time under the severe sea condition. Therefore, the sailing safety of the ship is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of water level control of a ship ballast water tank, and in particular to a device for real-time monitoring and remote control of the water level of a ship ballast water tank. Background Art

[0002] The ship's ballast water tank is a key equipment used by the ship to maintain stability. Its main function is to adjust the ship's weight distribution, draft and navigation balance by injecting or discharging water. The ballast water tank is located at different positions of the hull. Its design and operation directly affect the ship's navigation performance, fuel efficiency and maritime safety. The injection of ballast water can increase the weight of the ship and reduce the height of the hull floating, while drainage helps to increase the buoyancy and speed of the hull. Especially in long-term navigation or bad weather, the management of ballast water tanks is crucial to the smooth navigation of the ship.

[0003] Prior art, such as a method for preventing ship ballast water overflow disclosed in a patent application with announcement number: CN111824328B, includes a ship ballast water system, which includes several ballast tanks, water injection equipment and drainage equipment. Several ballast tanks are connected to the water injection equipment. The water injection equipment can inject seawater from the outside of the ship into the ballast tank. The drainage equipment is arranged between the ballast tank and the water injection equipment. The seawater in the water injection equipment can be discharged to the outside of the ship through the drainage equipment. A maximum water level value and an adjustment water level value are set for the ballast tank. When the actual water level in the ballast tank reaches the adjustment water level value, the water injection speed is reduced. When the actual water level in the ballast tank reaches the maximum water level value, the seawater in the water injection equipment is discharged to the outside through the drainage equipment. Finally, the water injection condition and the actual draft value of the ballast tank are detected. By setting two water level values ​​for the ballast tank, the water injection speed is adjusted and the water injection is stopped when the actual water level reaches the corresponding water level value during water injection, so as to avoid overflow due to untimely water injection closure.

[0004] Based on the above scheme, it is found that the limitations of the existing technology include at least the following problems. First, the existing technology lacks a dynamic adjustment mechanism for the real-time navigation status of the ship and the external sea conditions, and it is difficult to consider the dynamic changes of the ship during the actual navigation process. During the navigation of the ship, the dynamic characteristics of the hull and the changes in the external environment will cause the water level demand of the ballast water tank to change at any time, which can easily lead to difficulty in accurately responding to the immediate needs of water level regulation. Secondly, the existing technology does not realize the dynamic combination of real-time monitoring data and actual control factors, so it is difficult to make a real-time response according to the specific needs of the ship, which can easily cause excessive or insufficient water level in the ballast water tank, thereby affecting the stability and safety of the ship. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a real-time monitoring and remote control device for the water level of a ship's ballast tank, which solves the problem that the prior art lacks a dynamic adjustment mechanism for the real-time navigation status of the ship and the external sea conditions, and it is difficult to consider the dynamically changing state of the ship during actual navigation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a real-time monitoring and remote control device for the water level of a ship's ballast water tank, comprising: a first data acquisition and analysis unit, a second data acquisition and analysis unit, a comprehensive analysis unit, and a comparison control unit; the first data acquisition and analysis unit is used to acquire the water level monitoring data of each ballast water tank of the ship to be controlled in real time when the ship is sailing, and perform data analysis to obtain the adjusted water level value of each ballast water tank of the ship to be controlled; the second data acquisition and analysis unit is used to acquire the ship status monitoring data and sea condition monitoring data of each ballast water tank of the ship to be controlled in real time, and perform data analysis respectively. The data is analyzed to obtain the ship status water level control factor and the sea state water level control factor of each ballast water tank of the ship to be controlled, and a comprehensive analysis is performed to obtain the comprehensive water level control factor of each ballast water tank of the ship to be controlled; the comprehensive analysis unit is used to comprehensively analyze the adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled to obtain the water level control interval of each ballast water tank of the ship to be controlled; the comparison control unit is used to simultaneously obtain the water level monitoring value of each ballast water tank of the ship to be controlled, and compare and analyze it with the corresponding water level control interval, and take corresponding control measures based on the comparison and analysis results.

[0007] Furthermore, the water level monitoring data includes water pressure value, water temperature value, water salinity value, and air content value; the ship status monitoring data includes ship tilt index, ship swing amplitude index, ship speed value, ship draft value, ship moment of inertia value, and ship buoyancy load ratio value; the sea condition monitoring data includes wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, seawater bubble content value, seawater density value, and deviation angle difference.

[0008] Furthermore, the specific formula for calculating the comprehensive water level control factor of each ballast water tank of the ship to be controlled is as follows: ;in, The first The comprehensive water level control factor of each ballast water tank is , The first The ship status water level control factor of each ballast water tank, the sea state water level control factor, the sea state water level control factor, , , , , They are the ship status coefficient, ship adjustment coefficient, sea condition coefficient, sea condition adjustment coefficient, and interaction coefficient stored in the database. , 1, 2, 3, ..., , is the number of ballast water tanks.

[0009] Furthermore, the specific steps for obtaining the adjusted water level value of each ballast water tank of the ship to be controlled are as follows: obtain the water density reference value and water temperature reference value of each ballast water tank of the ship to be controlled, and conduct a comprehensive analysis in combination with the water temperature value, water salinity value, and air content value to obtain the actual water density value of each ballast water tank of the ship to be controlled; and analyze the water pressure value and actual water density value of the ballast water tank of the ship to be controlled to obtain the adjusted water level value of each ballast water tank of the ship to be controlled.

[0010] Furthermore, the specific steps for obtaining the ship state water level control factor of each ballast water tank of the ship to be controlled are as follows: normalizing the ship inclination index, ship swing amplitude index, ship draft value, ship speed value, ship moment of inertia value, and ship buoyancy load ratio of each ballast water tank of the ship to be controlled; comprehensively analyzing the ship inclination index, ship swing amplitude index, and ship draft value of each ballast water tank of the ship to be controlled after the normalization, and obtaining the ship water level regulation demand index of each ballast water tank of the ship to be controlled; and comprehensively analyzing the ship speed value, ship moment of inertia value, and ship buoyancy load ratio of each ballast water tank of the ship to be controlled after the normalization, and obtaining the ship water level regulation sensitivity index of each ballast water tank of the ship to be controlled; comprehensively analyzing the ship water level regulation demand index and the ship water level regulation sensitivity index of each ballast water tank of the ship to be controlled, and obtaining the ship state water level control factor of each ballast water tank of the ship to be controlled.

[0011] Furthermore, the specific formulas for calculating the ship water level regulation demand index, the ship water level regulation sensitivity index, and the ship state water level regulation factor of each ballast water tank of the ship to be controlled are as follows: ;in, The first Ship water level adjustment demand index for each ballast tank, , , They are the first The ship's tilt index, ship's rolling amplitude index, and ship's draft value for each ballast water tank. , , , They are the tilt adjustment coefficient, swing adjustment coefficient, draft adjustment coefficient, and superposition coefficient stored in the database. The first The ship water level adjustment sensitivity index of each ballast water tank, , , They are the first The ship's speed value, ship's moment of inertia value, and ship's buoyancy load ratio for each ballast water tank are , , , They are the speed adjustment coefficient, moment of inertia adjustment coefficient, buoyancy load adjustment coefficient, and buoyancy load nonlinear adjustment coefficient stored in the database. The first The ship status water level control factor of each ballast water tank, , The adjustment demand coefficient and sensitivity coefficient stored in the database, , 1, 2, 3, ..., , is the number of ballast water tanks, is a natural constant.

[0012] Furthermore, the specific steps for obtaining the sea condition and water level control factor of each ballast water tank of the ship to be controlled are as follows: standardize the wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, and seawater density value of each ballast water tank of the ship to be controlled; and comprehensively analyze the wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, and seawater density value of each ballast water tank of the ship to be controlled after the standardized treatment to obtain the dynamic resistance efficiency ratio adjustment index of each ballast water tank of the ship to be controlled; and comprehensively analyze the dynamic resistance efficiency ratio adjustment index, seawater bubble content value, and deviation angle difference of each ballast water tank of the ship to be controlled to obtain the sea condition and water level control factor of each ballast water tank of the ship to be controlled.

[0013] Furthermore, the specific steps for calculating the dynamic drag efficiency ratio adjustment index and the sea state water level control factor of each ballast water tank of the ship to be controlled are as follows: ;in, The first The dynamic drag efficiency ratio adjustment index of each ballast water tank is , , , , , The first and second ships to be controlled after standardization are The wave height index, wind speed value, seawater flow velocity value, seawater microplastic concentration value, seawater density value, and seawater temperature gradient index of each ballast water tank are , , , , , , , They are the seawater velocity adjustment coefficient, wind speed adjustment coefficient, seawater velocity adjustment coefficient, power drive adjustment coefficient, microplastic adjustment coefficient, seawater density adjustment coefficient, temperature gradient adjustment coefficient, and resistance adjustment coefficient stored in the database. The first The sea level control factor of each ballast tank, , The first The bubble content value and deviation angle difference of each ballast water tank, , , , They are the dynamic resistance adjustment coefficient, bubble content ratio coefficient, bubble content adjustment coefficient, and deviation adjustment coefficient stored in the database. 1, 2, 3, ..., , is the number of ballast water tanks, is a natural constant.

[0014] Furthermore, the specific steps for obtaining the water level control interval of each ballast water tank of the ship to be controlled are as follows: comprehensively analyze the adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled, and obtain the maximum safety value and the minimum safety value of the water level of each ballast water tank of the ship to be controlled; and establish the corresponding ballast water tank water level control interval based on the maximum safety value and the minimum safety value of the water level of each ballast water tank of the ship to be controlled.

[0015] Furthermore, the specific steps for taking corresponding control measures based on the comparison and analysis results are as follows: if the water level monitoring value of each ballast water tank of the ship to be controlled is lower than the lower limit of the water level control interval, the first control measure is taken; if the water level monitoring value of each ballast water tank of the ship to be controlled is within the water level control interval, no control measure is taken; if the water level monitoring value of each ballast water tank of the ship to be controlled is higher than the lower limit of the water level control interval, the second control measure is taken.

[0016] The present invention has the following beneficial effects: (1) The ship's ballast water tank water level real-time monitoring and remote control device monitors the water level of each ballast water tank in real time, and adjusts the water level control factor in real time according to the dynamic state of the ship and the external sea conditions, and automatically adjusts the water level of each water tank to ensure that the water level of the ship's ballast water tank can be corrected in time under severe sea conditions, thereby avoiding excessive swaying or tilting of the hull, thereby enhancing the navigation safety of the ship and effectively preventing safety hazards caused by unbalanced water levels.

[0017] (2) The real-time monitoring and remote control device for the water level of the ship's ballast water tanks obtains the water level monitoring value of each ballast water tank and compares it with the water level control range obtained by analysis. The control unit makes intelligent judgments through the comparison, thereby improving the response speed of the device, thereby reducing the need for manual intervention and the risk of operational errors. The water level of the ship's ballast water tanks can be adjusted in a timely and accurate manner under complex sea conditions to ensure the safe and efficient navigation of the ship.

[0018] (3) The ship's ballast water tank water level real-time monitoring and remote control device adjusts the water level control factor of each ballast water tank according to the changes in the ship's status and sea conditions, and accurately calculates the water level control range of each water tank on this basis, so as to avoid excessive or insufficient ballast water that is prone to occur in actual water level management, thereby achieving efficient water level regulation effects. For ships sailing for a long time, the device can significantly reduce the waste of ballast water and reduce the energy consumption in the long-term operation of the ship.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a block diagram of the device for real-time monitoring and remote control of water level in a ship's ballast water tank according to the present invention.

[0021] Figure 2 The present invention is a flowchart of the steps of obtaining the ship status water level control factor of each ballast water tank of the ship to be controlled in the real-time monitoring and remote control device for the water level of the ship ballast water tank of the present invention.

[0022] Figure 3 The present invention is a flow chart of the steps of obtaining the sea state water level control factor of each ballast water tank of the ship to be controlled in the real-time monitoring and remote control device for the water level of the ship ballast water tank of the present invention. DETAILED DESCRIPTION

[0023] The overall idea of ​​the problem in the embodiment of this application is as follows: Firstly, when the ship is sailing, the water level monitoring data of each ballast water tank of the ship to be controlled is acquired in real time through the first data acquisition and analysis unit, and the data is analyzed to obtain the adjusted water level value of each ballast water tank of the ship to be controlled. Secondly, the ship status monitoring data and sea condition monitoring data of each ballast water tank of the ship to be controlled are acquired in real time by the second data acquisition and analysis unit, and the data are analyzed respectively to obtain the ship status water level control factor and the sea condition water level control factor of the corresponding ballast water tank, and a comprehensive analysis is performed to obtain the comprehensive water level control factor of the corresponding ballast water tank. Then, the comprehensive analysis unit is used to comprehensively analyze the adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled to obtain the water level control interval of the corresponding ballast water tank. Finally, the water level monitoring value of each ballast water tank of the ship to be controlled is obtained at the same time through the comparison control unit, and compared and analyzed with the corresponding water level control interval, and corresponding control measures are taken based on the comparison and analysis results.

[0024] See also Figure 1 The embodiment of the present invention provides a technical solution: a device for real-time monitoring and remote control of the water level of a ship's ballast water tank, comprising: a first data acquisition and analysis unit, a second data acquisition and analysis unit, a comprehensive analysis unit, and a comparison control unit; the first data acquisition and analysis unit is used to acquire the water level monitoring data of each ballast water tank of the ship to be controlled in real time when the ship is sailing, and perform data analysis to obtain the adjusted water level value of each ballast water tank of the ship to be controlled (the water level value to be adjusted of the ballast water tank corresponding to each instantaneous moment); the second data acquisition and analysis unit is used to acquire the ship status monitoring data and sea condition monitoring data of each ballast water tank of the ship to be controlled in real time The data is collected and analyzed respectively to obtain the ship state water level control factor and the sea state water level control factor of each ballast water tank of the ship to be controlled, and a comprehensive analysis is performed to obtain the comprehensive water level control factor of each ballast water tank of the ship to be controlled; the comprehensive analysis unit is used to comprehensively analyze the adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled to obtain the water level control interval of each ballast water tank of the ship to be controlled; the comparison control unit is used to simultaneously obtain the water level monitoring value of each ballast water tank of the ship to be controlled, and compare and analyze it with the corresponding water level control interval, and take corresponding control measures based on the comparison and analysis results.

[0025] The specific formula for calculating the comprehensive water level control factor of each ballast water tank of the ship to be controlled is as follows: ;in, The first The comprehensive water level control factor of each ballast water tank is The first The ship status water level control factor of each ballast water tank, is the ship status coefficient stored in the database, is the ship adjustment coefficient stored in the database, The first The sea level control factor of each ballast tank, is the sea condition coefficient stored in the database, is the sea condition adjustment coefficient stored in the database, is the interaction coefficient stored in the database, , 1, 2, 3, ..., , is the number of ballast water tanks.

[0026] It should be explained that the formula This item is used to adjust the superposition effect of the ship status water level control factor and the sea condition water level control factor to avoid the comprehensive water level control factor being too high or too low.

[0027] , It can be obtained through the following steps: read the ship state water level control factor and sea state water level control factor of each ballast water tank of the ship to be controlled, and perform mean analysis to obtain the mean value of the ship state water level control factor and the mean value of the sea state water level control factor of the ship to be controlled, and perform sum analysis to obtain the comprehensive water level control and value, and perform proportion analysis on the mean value of the ship state water level control factor and the mean value of the sea state water level control factor of the ship to be controlled and the comprehensive water level control and value, and use the proportion analysis results as the corresponding coefficients.

[0028] , , It can be obtained through the following steps: using historical monitoring data, combined with indicators such as ship status water level control factor and sea condition water level control factor, statistical regression analysis is carried out to quantify the specific impact of each factor on the comprehensive water level control factor, so as to fit the initial weight value; secondly, using the sensitivity analysis method, adjust the value range of each coefficient, observe its impact on the comprehensive water level control factor, ensure the stability and rationality of the model, and based on regional characteristics and actual conditions, correct and optimize the preliminary fitted coefficients, and finally determine the coefficient value applicable to the specific area.

[0029] The specific implementation example of calculating the comprehensive water level control factor of the first ballast water tank of the ship to be controlled is as follows, and the following data are available: The ship state water level control factor of the first ballast water tank of the ship to be controlled is approximately: 1.56.

[0030] The sea state water level control factor of the first ballast water tank of the ship to be controlled is approximately: 1.35.

[0031] The ship status coefficient of the first ballast water tank stored in the database is approximately: 0.59.

[0032] The ship adjustment factor for the first ballast water tank stored in the database is approximately: 0.41.

[0033] The sea state coefficient of the first ballast water tank stored in the database is approximately: 0.26.

[0034] The sea state adjustment factor for the first ballast water tank stored in the database is approximately: 0.35.

[0035] The interaction coefficient for the first ballast water tank stored in the database is approximately: 0.43.

[0036] Substituting the above data into the specific formula for calculating the comprehensive water level control factor of each ballast water tank of the ship to be controlled, the following is obtained: The comprehensive water level control factor of the first ballast tank of the ship to be controlled = arctan ((exp (-(0.59*1.56 0.26 +0.41*1.35 0.35 ))) / (0.43*1.56*1.35))≈0.34.

[0037] Water level monitoring data include water pressure values, water temperature values, water salinity values, and air content values. Ship status monitoring data include ship tilt index, ship swing amplitude index, ship speed value, ship draft value, ship moment of inertia value, and ship buoyancy load ratio value. Sea condition monitoring data include wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, seawater bubble content value, seawater density value, and deviation angle difference value.

[0038] Among them, the water pressure value can be obtained through a pressure sensor.

[0039] The water temperature value can be obtained through the water temperature sensor.

[0040] Water salinity is the concentration of salt dissolved in water and can be obtained by a salinity sensor (such as a conductivity sensor).

[0041] The gas content value is the content of dissolved gas (such as oxygen, carbon dioxide, etc.) in water, which can be obtained through a gas sensor.

[0042] The ship inclination index is the degree of inclination of the ship relative to the horizontal plane. It can be obtained by obtaining the transverse and longitudinal inclination degrees and performing weighted processing, and the result is the parameter.

[0043] The ship roll amplitude index is a quantitative indicator of the ship's roll amplitude. The parameter is obtained by obtaining the angular velocity of roll (obtained by gyroscope) and pitch (obtained by gyroscope) and performing weighted processing.

[0044] The draft value of a ship is the depth of the ship below the water surface and can be obtained by an ultrasonic sensor.

[0045] The ship's moment of inertia value is the ship's ability to resist rotation under the action of external forces. The shape of the ship can be scanned by laser scanning equipment to obtain high-precision three-dimensional point cloud data. After processing, a three-dimensional model of the ship can be generated and input into engineering calculation software for analysis and calculation. The calculation results are not uploaded to the database.

[0046] The ship's buoyancy load ratio is the ratio between the ship's buoyancy (obtained by the buoyancy sensor) and its total load (obtained by the weight sensor).

[0047] The wave height index is the average height of the waves in each direction while the ship is sailing. The wave height in each direction can be obtained through a wave sensor (which records the wave height and direction in real time, and the wave height index in each direction can be calculated after the algorithm inside the data is processed).

[0048] The microplastic concentration value refers to the concentration of microplastic particles in seawater, which can be obtained through a microplastic concentration sensor.

[0049] The seawater temperature gradient index is the temperature difference between seawater at different depths. By obtaining temperature values ​​at multiple different depths and performing standard deviation processing, the result is this parameter.

[0050] The bubble content value of seawater is the ratio of the volume of bubbles in seawater within the set range of the ship to the volume of seawater. The volume of bubbles in seawater within the set range can be obtained by a bubble sensor (the volume of bubbles is estimated by monitoring the changes in sound waves when bubbles pass through and the reflection intensity of bubbles). The volume of seawater within the set range is obtained by obtaining the cross-sectional area of ​​the set range and the average depth of the area (that is, measuring the depth of multiple measurement points through sonar, and averaging the measurement results), and multiplying them. The result is the parameter.

[0051] The deviation angle difference is the angle between the ship heading (obtained by the heading sensor) and the wave direction (wave direction sensor), that is, the deviation angle difference = |ship heading angle - wave direction angle|.

[0052] Specifically, Figure 2As shown, the specific steps for obtaining the adjusted water level value of each ballast water tank of the ship to be controlled are as follows: obtain the water density reference value and water temperature reference value of each ballast water tank of the ship to be controlled, and perform a comprehensive analysis in combination with the water temperature value, water salinity value, and air content value to obtain the actual water density value of each ballast water tank of the ship to be controlled; and analyze the water pressure value and actual water density value of the ballast water tank of the ship to be controlled to obtain the adjusted water level value of each ballast water tank of the ship to be controlled.

[0053] Among them, the water density reference value is the density of pure water, which can be obtained through the international standard hydrological database.

[0054] Water temperature reference values ​​can be obtained from the NASA Ocean Temperature Database.

[0055] The specific formula for calculating the actual water density value and the adjusted water level value of each ballast water tank of the ship to be controlled is as follows: ;in, The first The actual water density value of each ballast tank, The first Reference value of water density in ballast water tanks, is the water salinity value of each ballast water tank of the ship to be controlled, is the salinity coefficient stored in the database, The first The water temperature of the ballast water tank is is the water temperature reference value of the ship to be controlled, is the temperature coefficient stored in the database, The first The gas content of each ballast water tank is is the gas content coefficient stored in the database, The first The adjusted water level value of each ballast water tank, The first The water pressure value of the ballast tank, is the value of gravity acceleration, and in this implementation example, the value is 9.80, 1, 2, 3, ..., , is the number of ballast water tanks.

[0056] It needs to be explained that , , It can be obtained through the following steps: using historical data, combined with water temperature, water salinity, gas content and other indicators, to conduct statistical regression analysis, quantify the specific impact of each factor on water density, and thus fit the initial weight value; secondly, using the sensitivity analysis method, adjust the value range of each coefficient, observe its impact on the water density assessment results, ensure the stability and rationality of the model, and based on regional characteristics and actual conditions, correct and optimize the preliminary fitting coefficients, and finally determine the coefficient value applicable to the specific area.

[0057] In this implementation scheme, by combining various environmental factors such as water temperature, salinity and gas content with the water density reference value, the actual water density of the ship's ballast water tank can be accurately evaluated. The dynamic changes of environmental factors (such as water temperature, salinity, etc.) have a significant impact on water density, which can effectively improve the accuracy of water level. Secondly, the combination of historical data, environmental factors and sensitivity analysis makes the model more dynamic and adaptable. Through regression analysis and sensitivity analysis based on historical data, the specific impact of each influencing factor can be quantified and the parameter coefficients can be optimized, thereby improving the adaptability of the device to different ballast water tanks. Finally, according to the specific characteristics of different regions and sea conditions, the model parameters are adjusted and the coefficients suitable for specific environments are corrected, so that it has a high degree of reliability and consistency in practical applications.

[0058] Specifically, the specific steps for obtaining the ship state water level control factor of each ballast water tank of the ship to be controlled are as follows: normalize (i.e., remove the unit) the ship inclination index, ship swing amplitude index, ship draft value, ship speed value, ship moment of inertia value, and ship buoyancy load ratio of each ballast water tank of the ship to be controlled; comprehensively analyze the ship inclination index, ship swing amplitude index, and ship draft value of each ballast water tank of the ship to be controlled after the normalization process to obtain the ship water level regulation demand index of each ballast water tank of the ship to be controlled; and comprehensively analyze the ship speed value, ship moment of inertia value, and ship buoyancy load ratio of each ballast water tank of the ship to be controlled after the normalization process to obtain the ship water level regulation sensitivity index of each ballast water tank of the ship to be controlled; comprehensively analyze the ship water level regulation demand index and the ship water level regulation sensitivity index of each ballast water tank of the ship to be controlled to obtain the ship state water level control factor of each ballast water tank of the ship to be controlled.

[0059] The specific formulas for calculating the ship water level regulation demand index, ship water level regulation sensitivity index, and ship state water level regulation factor of each ballast water tank of the ship to be controlled are as follows: ;in, The first Ship water level adjustment demand index for each ballast tank, is the first ship to be controlled after normalization The ship's heel index for each ballast tank, is the tilt adjustment coefficient stored in the database, is the first ship to be controlled after normalization The ship rolling amplitude index of each ballast tank, is the swing adjustment coefficient stored in the database, is the first ship to be controlled after normalization The draft value of the ship with each ballast tank is is the draft adjustment coefficient stored in the database, is the superposition coefficient stored in the database, The first The ship water level adjustment sensitivity index of each ballast water tank, is the first ship to be controlled after normalization The ship speed value of each ballast tank is is the speed adjustment factor stored in the database, is the first ship to be controlled after normalization The ship's moment of inertia for each ballast tank is: is the inertia adjustment factor stored in the database, is the first ship to be controlled after normalization The buoyancy load ratio of the ship for each ballast tank is is the buoyancy load adjustment factor stored in the database, is the nonlinear adjustment coefficient of the buoyancy load stored in the database, The first The ship status water level control factor of each ballast water tank, is the adjustment demand coefficient stored in the database, is the sensitivity coefficient stored in the database, , 1, 2, 3, ..., , is the number of ballast water tanks, is a natural constant and in this embodiment takes a value of 2.71.

[0060] It should be explained that the formula This item is used to adjust the superimposed effect of the ship's inclination index, the ship's swing amplitude index, and the ship's draft depth value to avoid the ship's water level adjustment demand index being too high or too low.

[0061] , , , It can be obtained through the following steps: Based on historical data, the initial impact weights of various variables (such as ship tilt index, ship swing amplitude index, ship draft depth value, etc.) on the ship water level regulation demand index are determined through statistical regression analysis. Then, the range of coefficients is adjusted using the sensitivity analysis method to evaluate the stability and applicability of these parameters to the formula output. Next, the weights are further fitted through model optimization (such as multi-objective optimization) to ensure that the formula can accurately reflect the actual ship water level regulation needs, and the coefficients are fine-tuned based on the characteristics of different regions to ensure that they are suitable for specific ship water level regulation needs.

[0062] , , , It can be obtained through the following steps: Based on historical data, the initial influence weights of various variables (such as ship speed, ship inertia moment, ship buoyancy load ratio, etc.) on the ship water level regulation sensitivity index are determined through statistical regression analysis. Then, the range of coefficients is adjusted using the sensitivity analysis method to evaluate the stability and applicability of these parameters to the formula output. Next, the weights are further fitted through model optimization (such as machine learning algorithms) to ensure that the formula can accurately reflect the sensitivity of actual ship water level regulation. The coefficients are fine-tuned based on the characteristics of different regions to ensure that they are suitable for the sensitivity of specific ship water level regulation.

[0063] , It can be obtained through the following steps: read the ship water level regulation demand index and the ship water level regulation sensitivity index of each ballast water tank that controls the ship, and perform mean analysis to obtain the mean of the ship water level regulation demand index and the mean of the ship water level regulation sensitivity index, and perform sum analysis to obtain the ship state control and value, and perform proportion analysis on the mean of the ship water level regulation demand index and the ship water level regulation sensitivity index and the ship state control and value, respectively, and use the proportion analysis results as the corresponding coefficients.

[0064] In this implementation scheme, by normalizing and comprehensively analyzing multiple key parameters of the ship (such as tilt index, swing amplitude, draft depth, etc.), the water level regulation demand index and sensitivity index of the ship are accurately calculated, and the errors caused by unit differences of different parameters are avoided, so as to ensure that the influence of each parameter on water level regulation is reasonably reflected. At the same time, under the action of multiple factors, the water level regulation demand index and sensitivity index of the ship can fully reflect the actual needs of the ship under different navigation conditions, thereby avoiding improper ship regulation, and then enabling the ship to sail stably under different navigation conditions to ensure safety and efficiency. Secondly, through historical data analysis and sensitivity analysis methods, the value range of each coefficient can be dynamically adjusted, so that the regulation factor can accurately reflect the regulation demand and sensitivity of the ship under different navigation conditions, and through fine-tuning of different regional characteristics, the model can accurately adapt to the navigation needs of different sea areas. The fine-tuning coefficient can ensure that the water level regulation system of the ship in a specific area is more adapted to the actual environment, thereby improving the regulation efficiency and stability of the ship in various complex environments, thereby improving the operational safety of the ship.

[0065] Specifically, the specific steps for obtaining the sea condition and water level control factor of each ballast water tank of the ship to be controlled are as follows: standardize the wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, and seawater density value of each ballast water tank of the ship to be controlled (i.e., remove the unit); and comprehensively analyze the wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, and seawater density value of each ballast water tank of the ship to be controlled after the standardized treatment to obtain the dynamic resistance efficiency ratio adjustment index of each ballast water tank of the ship to be controlled; and comprehensively analyze the dynamic resistance efficiency ratio adjustment index, seawater bubble content value, and deviation angle difference of each ballast water tank of the ship to be controlled to obtain the sea condition and water level control factor of each ballast water tank of the ship to be controlled.

[0066] The specific steps for calculating the dynamic drag efficiency ratio adjustment index and the sea level control factor of each ballast water tank of the ship to be controlled are as follows: ;in, The first The dynamic drag efficiency ratio adjustment index of each ballast water tank is: The first ship to be controlled after standardization The wave height index of each ballast tank, is the seawater velocity adjustment coefficient stored in the database, The first ship to be controlled after standardization The wind speed value of each ballast tank is is the wind speed adjustment coefficient stored in the database, The first ship to be controlled after standardization The seawater flow rate value of each ballast water tank is is the seawater velocity adjustment coefficient stored in the database, is the power drive adjustment coefficient stored in the database, The first ship to be controlled after standardization The concentration of microplastics in seawater in ballast water tanks is the microplastic adjustment factor stored in the database, The first ship to be controlled after standardization The density of seawater in the ballast water tank is is the seawater density adjustment coefficient stored in the database, The first ship to be controlled after standardization The seawater temperature gradient index of each ballast water tank, is the temperature gradient adjustment coefficient stored in the database, is the resistance adjustment coefficient stored in the database, The first The sea level control factor of each ballast tank, is the dynamic resistance adjustment coefficient stored in the database, The first The bubble content of seawater in each ballast water tank, is the bubble content ratio coefficient stored in the database, is the bubble content adjustment factor stored in the database, The first The deviation angle difference of each ballast tank is is the deviation adjustment coefficient stored in the database, 1, 2, 3, ..., , is the number of ballast water tanks, is a natural constant and in this embodiment takes a value of 2.71.

[0067] It needs to be explained that , , , , , , , It can be obtained through the following steps: using historical data, through statistical modeling and regression analysis, evaluate the influence of various variables (such as wave height index, wind speed value, seawater microplastic concentration value, etc.) on the dynamic drag efficiency ratio adjustment index, so as to fit the initial weight value, and then adjust the value range of these coefficients based on sensitivity analysis to ensure that the formula has good adaptability to the changes in dynamic drag efficiency ratio adjustment under different environmental conditions, and then, based on regional characteristics and actual conditions, correct and optimize the preliminary fitting coefficients, and finally determine the coefficient value suitable for a specific area.

[0068] , , , It can be obtained through the following steps: using historical data, evaluating the influence of various variables (such as dynamic drag efficiency adjustment index, seawater bubble content, deviation angle difference, etc.) on the sea condition and water level control factor through statistical modeling and regression analysis, so as to fit the initial weight value, and then adjust the value range of these coefficients based on sensitivity analysis to ensure that the formula has good adaptability to the sea condition and water level control factors under different environmental conditions, and then, based on the regional characteristics and actual conditions, correct and optimize the preliminary fitted coefficients, and finally determine the coefficient value suitable for a specific area.

[0069] In this implementation scheme, the sea condition influencing factors of each ballast water tank of the ship are standardized to eliminate the unit differences between these parameters, so that each factor can participate in the comprehensive analysis more fairly under the same conditions, thereby ensuring that the control device can accurately adjust the ship's dynamic drag efficiency ratio and water level control factor under different sea conditions, thereby improving the stability of the ship under dynamic sea conditions, thereby ensuring that the ship can efficiently cope with various complex sea conditions. Secondly, by using historical data for statistical modeling and regression analysis, and optimizing and adjusting the coefficients through sensitivity analysis methods, it can be ensured that the sea condition and water level control factors can adapt to different marine environments and navigation conditions, and fine-tune them according to the characteristics of different sea areas. It can also adjust the water level control strategy in real time according to the data changes during actual navigation, thereby enhancing adaptability. For example, in areas with larger waves, the coefficient value will be automatically adjusted to ensure the water level control effect of the ship in complex environments. Then, the dynamic drag efficiency ratio adjustment index and the sea condition and water level control factor are adjusted. Optimization helps to more accurately adjust the buoyancy and stability of the ship, thereby improving navigation efficiency. At the same time, the analysis of bubble content and deviation angle can help accurately control the navigation trajectory of the ship, ensure that the ship always maintains the best condition under different sea conditions, and improve the economic benefits of the ship. Moreover, by fine-tuning and optimizing the coefficients for specific areas, it can ensure that the water level control adapts to the characteristics of specific sea areas. The ocean currents, climate conditions, wave intensity, etc. in different regions will affect the water level control needs of the ship. Therefore, the adjustment coefficient can ensure that the ship can accurately adjust the water level in any specific area, minimize the unstable factors in navigation, and improve navigation safety and reliability. Finally, through regression analysis and sensitivity analysis to optimize the coefficient, the final sea condition water level control factor is more accurate, so that the water level control is predictable. With the continuous accumulation and analysis of historical data, the water level requirements of the ship under different sea conditions are predicted, and corresponding adjustments are made to ensure that the ship can still maintain a high operating efficiency during long-term navigation.

[0070] Specifically, the specific steps for obtaining the water level control range of each ballast water tank of the ship to be controlled are as follows: comprehensively analyze the adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled, and obtain the maximum safety value and the minimum safety value of the water level of each ballast water tank of the ship to be controlled; and establish the corresponding ballast water tank water level control range based on the maximum safety value and the minimum safety value of the water level of each ballast water tank of the ship to be controlled.

[0071] The specific formula for calculating the maximum safe value and the minimum safe value of the water level in each ballast water tank of the ship to be controlled is as follows: ;in, The first The maximum safe value of the water level in the ballast water tank, The first The adjusted water level value of each ballast water tank, The first The comprehensive water level control factor of each ballast water tank is is the upper water level adjustment coefficient stored in the database, The first The minimum safe value of the water level in the ballast water tank, is the lower limit water level adjustment coefficient stored in the database, 1, 2, 3, ..., , is the number of ballast water tanks.

[0072] It needs to be explained that , It can be obtained through the following steps: using historical data, evaluating the impact of water level regulation on the maximum safety value of water level and the minimum safety value of water level in turn through statistical modeling and regression analysis, so as to fit the initial weight value, and then adjusting the value range of these coefficients based on sensitivity analysis to ensure that the formula has good adaptability to changes in the maximum safety value of water level and the minimum safety value of water level under different environmental conditions, and then, based on regional characteristics and actual conditions, correcting and optimizing the preliminary fitting coefficients, and finally determining the coefficient value applicable to the specific area.

[0073] In this implementation scheme, the maximum safety value and the minimum safety value of the water level are calculated by comprehensively analyzing the adjusted water level value and the comprehensive water level control factor, so as to ensure that the ship is maintained within a safe water level range under different sea conditions, thereby helping to avoid overloading or insufficient buoyancy of the ship and ensuring the stability of the ship during navigation. Secondly, by setting a reasonable water level control interval, the risk of tilting or sinking of the ship under various complex sea conditions is reduced, and navigation safety is improved. The influence of the water level control factor on the maximum and minimum safe water levels is evaluated by statistical modeling and regression analysis based on historical data, so that the specific influence of each parameter on the water level can be accurately reflected. The weight value preliminarily fitted provides a scientific basis for water level control, and further optimizes the coefficient value, which can achieve more accurate water level control, ensuring that the water level of the ship is always within the optimal range, thereby improving the accuracy and effectiveness of the water level control system. Finally, through precise water level control, the influence of human operation errors and unstable factors can be effectively reduced, and abnormal operation of the ship caused by control errors can be avoided. According to the set safety interval, adjustments can be made quickly and accurately to reduce the risks caused by misjudgment, while improving the efficiency and safety of the entire water level control process.

[0074] Specifically, the specific steps for taking corresponding control measures based on the comparison and analysis results are as follows: if the water level monitoring value of each ballast water tank of the ship to be controlled is lower than the lower limit of the water level control interval (that is, the minimum safe value of the water level), take the first control measure (that is, start water replenishment, automatically introduce water from an external water source or other compartments; control the flow, adjust the water replenishment flow and speed to ensure that the water level gradually recovers to a reasonable range within the control interval, and prevent other problems caused by too fast or too slow water replenishment; alarm feedback, issue a warning to relevant personnel, and adjust the water replenishment flow according to the change of water level until the water level reaches the safe interval); if the water level monitoring value of each ballast water tank of the ship to be controlled is If the water level is within the water level control range, no control measures will be taken; if the water level monitoring value of each ballast water tank of the ship to be controlled is higher than the lower limit of the water level control range (i.e. the maximum safe value of the water level), the second control measure will be taken (i.e. starting drainage to discharge excess water from the water tank; controlling the drainage flow rate, by adjusting the opening and closing degree of the drainage pipe, the drainage flow rate, etc., to ensure that the drainage speed and flow are controlled within a safe range to avoid sudden drainage causing instability of the ship; alarm feedback, warning relevant personnel until the water level is ensured to gradually drop to a reasonable range of the control range, and when the water level approaches the control range, the drainage flow rate will gradually decrease until the water level returns to an appropriate range).

[0075] In this embodiment, the water level of the ballast tank is automatically adjusted, so that the balance and navigation safety of the ship can be effectively maintained. Too low or too high water level can easily lead to stability problems of the ship (such as loss of buoyancy or tilt). Through this control measure, the water level can be adjusted in time to avoid instability or potential risks of the ship. Secondly, the water level monitoring and adjustment process is completed automatically, thereby improving the operation efficiency and reducing the possibility of human error. The crew only needs to confirm or assist in the operation after receiving the alarm information during the water level adjustment process, which improves work efficiency and safety. Then, through the alarm feedback mechanism, the crew can timely understand the abnormal water level and take necessary measures. The timeliness of the alarm ensures that the water level problem can be quickly resolved, thereby avoiding the risks caused by being in an unsafe water level for a long time. Finally, by controlling the water replenishment and drainage flow, too fast or too slow water level adjustment is avoided, thereby reducing the violent fluctuations in the water level adjustment process, and effectively preventing the instability or damage of the ship caused by excessive changes in the water level. For example, sudden drainage may affect the center of gravity and navigation status of the ship, and by adjusting the flow rate, the water level can be smoothly restored to ensure the balance of the ship.

[0076] In summary, this application has at least the following effects: By real-time monitoring of the water level in each ballast water tank and adjusting the water level control factor in real time according to the dynamic state of the ship and external sea conditions, the water level of each water tank is automatically adjusted to ensure that the water level of the ship's ballast water tank can be corrected immediately under severe sea conditions, thereby avoiding excessive swaying or tilting of the hull, thereby enhancing the navigation safety of the ship and effectively preventing safety hazards caused by unbalanced water levels.

[0077] By obtaining the water level monitoring value of each ballast water tank and comparing it with the water level control range obtained by analysis, the control unit makes intelligent judgments through the comparison, thereby improving the response speed of the device, reducing the need for manual intervention and the risk of operational errors. The water level of the ship's ballast water tank can be adjusted in a timely and accurate manner under complex sea conditions to ensure the safe and efficient navigation of the ship.

[0078] The water level control factor of each ballast water tank is adjusted according to the changes in the ship status and sea conditions, and the water level control range of each water tank is accurately calculated on this basis, so as to avoid excessive or insufficient ballast water that is easy to exist in actual water level management, thereby achieving efficient water level regulation effect. For ships sailing for a long time, the device can significantly reduce the waste of ballast water and reduce the energy consumption in the long-term operation of the ship.

[0079] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0080] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A real-time monitoring and remote control device for the water level of a ship's ballast tank, characterized in that: include: A first data acquisition and analysis unit, a second data acquisition and analysis unit, a comprehensive analysis unit, and a comparison control unit; The first data acquisition and analysis unit is used to acquire the water level monitoring data of each ballast water tank of the ship to be controlled in real time when the ship is sailing, and perform data analysis to obtain the adjusted water level value of each ballast water tank of the ship to be controlled; The second data acquisition and analysis unit is used to acquire the ship status monitoring data and sea condition monitoring data of each ballast water tank of the ship to be controlled in real time, and perform data analysis respectively to obtain the ship status water level control factor and sea condition water level control factor of each ballast water tank of the ship to be controlled, and perform comprehensive analysis to obtain the comprehensive water level control factor of each ballast water tank of the ship to be controlled; The comprehensive analysis unit is used to comprehensively analyze the adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled to obtain the water level control range of each ballast water tank of the ship to be controlled; The comparison control unit is used to simultaneously obtain the water level monitoring value of each ballast water tank of the ship to be controlled, and compare and analyze it with the corresponding water level control interval, and take corresponding control measures based on the comparison and analysis results.

2. The device for real-time monitoring and remote control of water level in a ship ballast tank according to claim 1, characterized in that: The water level monitoring data includes water pressure value, water temperature value, water salinity value, and air content value. The ship status monitoring data includes ship tilt index, ship swing amplitude index, ship speed value, ship draft value, ship moment of inertia value, and ship buoyancy load ratio value. The sea condition monitoring data includes wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, seawater bubble content value, seawater density value, and deviation angle difference.

3. The real-time monitoring and remote control device for the water level of a ship ballast tank according to claim 1 is characterized in that: The specific formula for calculating the comprehensive water level control factor of each ballast water tank of the ship to be controlled is as follows: ； in, The first The comprehensive water level control factor of each ballast water tank is , The first The ship status water level control factor of each ballast water tank, the sea state water level control factor, the sea state water level control factor, , , , , They are the ship status coefficient, ship adjustment coefficient, sea condition coefficient, sea condition adjustment coefficient, and interaction coefficient stored in the database. , 1, 2, 3, ..., , is the number of ballast water tanks.

4. The real-time monitoring and remote control device for the water level of a ship ballast tank according to claim 2 is characterized in that: The specific steps for obtaining the adjusted water level value of each ballast water tank of the ship to be controlled are as follows: Obtain the water density reference value and water temperature reference value of each ballast water tank of the ship to be controlled, and perform a comprehensive analysis based on the water temperature value, water salinity value, and gas content value to obtain the actual water density value of each ballast water tank of the ship to be controlled; The water pressure value and actual water density value of the ballast water tank of the ship to be controlled are analyzed to obtain the adjusted water level value of each ballast water tank of the ship to be controlled.

5. The real-time monitoring and remote control device for the water level of a ship's ballast water tank according to claim 2 is characterized in that: The specific steps for obtaining the ship state water level control factor of each ballast water tank of the ship to be controlled are as follows: Normalizing the ship inclination index, ship swing amplitude index, ship draft value, ship speed value, ship inertia moment value, and ship buoyancy load ratio value of each ballast water tank of the controlled ship; Based on the ship inclination index, ship swing amplitude index and ship draft value of each ballast water tank of the ship to be controlled after normalization, a comprehensive analysis is performed to obtain the ship water level adjustment demand index of each ballast water tank of the ship to be controlled; A comprehensive analysis is performed on the normalized ship speed value, ship inertia moment value, and ship buoyancy load ratio of each ballast water tank of the ship to be controlled to obtain the ship water level adjustment sensitivity index of each ballast water tank of the ship to be controlled; The ship water level regulation demand index and the ship water level regulation sensitivity index of each ballast water tank of the ship to be controlled are comprehensively analyzed to obtain the ship state water level control factor of each ballast water tank of the ship to be controlled.

6. The device for real-time monitoring and remote control of water level in ship ballast tanks according to claim 5, characterized in that: The specific formulas for calculating the ship water level regulation demand index, ship water level regulation sensitivity index, and ship state water level regulation factor of each ballast water tank of the ship to be controlled are as follows: ； in, The first Ship water level adjustment demand index for each ballast tank, , , They are the first The ship's tilt index, ship's rolling amplitude index, and ship's draft value for each ballast water tank. , , , They are the tilt adjustment coefficient, swing adjustment coefficient, draft adjustment coefficient, and superposition coefficient stored in the database. The first The ship water level adjustment sensitivity index of each ballast water tank, , , They are the first The ship's speed value, ship's moment of inertia value, and ship's buoyancy load ratio for each ballast water tank are , , , They are the speed adjustment coefficient, the moment of inertia adjustment coefficient, the buoyancy load adjustment coefficient, and the buoyancy load nonlinear adjustment coefficient stored in the database. The first The ship status water level control factor of each ballast water tank, , They are the adjustment demand coefficient and sensitivity coefficient stored in the database, , 1, 2, 3, ..., , is the number of ballast water tanks, is a natural constant.

7. The device for real-time monitoring and remote control of water level in ship ballast tanks according to claim 2, characterized in that: The specific steps for obtaining the sea state water level control factor of each ballast water tank of the ship to be controlled are as follows: Standardize the wave height index, wind speed value, seawater microplastic concentration value, seawater flow rate value, seawater temperature gradient index, and seawater density value of each ballast water tank of the controlled ship; A comprehensive analysis is then conducted on the wave height index, wind speed value, seawater microplastic concentration value, seawater flow velocity value, seawater temperature gradient index, and seawater density value of each ballast water tank of the ship to be controlled after the standardized processing, and the dynamic drag efficiency ratio adjustment index of each ballast water tank of the ship to be controlled is obtained; The dynamic resistance efficiency ratio adjustment index, seawater bubble content value and deviation angle difference of each ballast water tank of the ship to be controlled are comprehensively analyzed to obtain the sea condition and water level control factor of each ballast water tank of the ship to be controlled.

8. The device for real-time monitoring and remote control of water level in ship ballast tanks according to claim 7, characterized in that: The specific steps for calculating the dynamic drag efficiency ratio adjustment index and the sea level control factor of each ballast water tank of the ship to be controlled are as follows: ； in, The first The dynamic drag efficiency ratio adjustment index of each ballast water tank is , , , , , The first and second ships to be controlled after standardization are The wave height index, wind speed value, seawater flow velocity value, seawater microplastic concentration value, seawater density value, and seawater temperature gradient index of each ballast water tank are , , , , , , , They are the seawater velocity adjustment coefficient, wind speed adjustment coefficient, seawater velocity adjustment coefficient, power drive adjustment coefficient, microplastic adjustment coefficient, seawater density adjustment coefficient, temperature gradient adjustment coefficient, and resistance adjustment coefficient stored in the database. The first The sea level control factor of each ballast tank, , The first The bubble content value and deviation angle difference of each ballast water tank, , , , They are the dynamic resistance adjustment coefficient, bubble content ratio coefficient, bubble content adjustment coefficient, and deviation adjustment coefficient stored in the database. 1, 2, 3, ..., , is the number of ballast water tanks, is a natural constant.

9. The device for real-time monitoring and remote control of water level in a ship ballast tank according to claim 1, characterized in that: The specific steps for obtaining the water level control range of each ballast water tank of the ship to be controlled are as follows: The adjusted water level value and the comprehensive water level control factor of each ballast water tank of the ship to be controlled are analyzed comprehensively to obtain the maximum safe value and the minimum safe value of the water level of each ballast water tank of the ship to be controlled; And based on the maximum safe value and the minimum safe value of the water level of each ballast water tank of the ship to be controlled, a corresponding water level control range of the ballast water tank is established.

10. The device for real-time monitoring and remote control of water level in ship ballast tanks according to claim 1, characterized in that: The specific steps for taking corresponding control measures based on the comparison and analysis results are as follows: If the water level monitoring value of each ballast water tank of the ship to be controlled is lower than the lower limit of the water level control interval, the first control measure is adopted; If the water level monitoring value of each ballast water tank of the ship to be controlled is within the water level control range, no control measures will be taken; If the water level monitoring value of each ballast water tank of the ship to be controlled is higher than the lower limit of the water level control interval, the second control measure is taken.

Images