Floating support installation vertical position determination method applying laser swinger

Abstract

The invention discloses a floating support installation vertical position determination method applying a laser swinger, relates to the field of ocean engineering, solves the problem of poor use effect of an existing floating support installation vertical position determination method, and comprises the following steps: S1, obtaining monitoring period type division data and a period draft average value; s2, floating installation influence factor monitoring is conducted on the first type of draught monitoring period and the second type of draught monitoring period, and monitoring period analysis data are obtained according to the monitoring result; and S3, according to the ship draught preliminary monitoring data and the monitoring period analysis data, floating height adjustment is conducted on the target ship in the first type draught monitoring period and the second type draught monitoring period. According to the method, the accuracy of floating height determination and the safety of ship navigation can be effectively improved.

Description

Technical Field

[0001] The present invention belongs to the field of ocean engineering and relates to data analysis technology. Specifically, it is a method for determining the vertical position of floating installation using a laser level. Background Art

[0002] When determining the vertical position of floating installation with the existing methods for determining the vertical position of floating installation, the following specific defects exist:

[0003] 1. The existing methods for determining the vertical position of floating installation cannot adopt different methods for determining the vertical position of floating installation according to different water area environments, resulting in a lack of pertinence in the selection of the method for determining the vertical position of floating installation;

[0004] 2. The existing methods for determining the vertical position of floating installation often rely on the operation experience of workers and the real-time changes of the water area environment to determine the vertical installation position of the floating body, resulting in a lack of objectivity and accuracy in the method for determining the vertical position of floating installation.

[0005] Therefore, we propose a method for determining the vertical position of floating installation using a laser level. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a method for determining the vertical position of floating installation using a laser scanner, aiming to improve the pertinence and accuracy of the method for determining the vertical position of floating installation.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A method for determining the vertical position of floating installation using a laser level, including the following specific steps:

[0008] Step S1: Obtain the ship draft monitoring period, monitor the draft depth of the target ship in the ship draft monitoring period, and obtain the average draft depth of the period and the period water area undulation coefficient according to the monitoring results. Obtain the threshold value of the period water area undulation coefficient, compare the period water area undulation coefficient with the threshold value of the period water area undulation coefficient, divide the ship draft monitoring period into the first type of draft monitoring period and the second type of draft monitoring period according to the comparison result of the numerical values, obtain the monitoring period type division data, and define the monitoring period type division data and the average draft depth of the period as the preliminary ship draft monitoring data;

[0009] Step S2: Monitor the influencing factors of floating installation for the first type of draft monitoring period and the second type of draft monitoring period respectively according to the preliminary ship draft monitoring data, and obtain the first floating installation influencing data and the second floating installation influencing data respectively according to the monitoring results, to obtain the monitoring period analysis data;

[0010] Step S3: Adjust the floating height of the ship for the first type of draft monitoring period and the second type of draft monitoring period respectively according to the preliminary ship draft monitoring data and the monitoring period analysis data.

[0011] Furthermore, in the above-mentioned step S1, the following specific steps are further included:

[0012] Step S11: When the target ship is navigating in the water area, mark the time value corresponding to the current moment as the first draft monitoring time point, and mark a second draft monitoring time point in the time period before the first draft monitoring time point. The time interval between the first draft monitoring time point and the second draft monitoring time point is a first characteristic monitoring duration, and mark the time period between the first draft monitoring time point and the second draft monitoring time point as the ship draft depth monitoring period;

[0013] Step S12: Mark several draft depth monitoring time points within the ship draft depth monitoring period, and name the marked draft depth monitoring time points as the first depth monitoring time point to the a-th depth monitoring time point in chronological order;

[0014] Step S13: Obtain the periodic water area undulation coefficient and the periodic draft depth variance;

[0015] Step S14: Obtain the periodic water area undulation coefficient threshold, compare the periodic water area undulation coefficient with the periodic water area undulation coefficient threshold, and divide the ship draft depth monitoring period into the first type of draft monitoring period and the second type of draft monitoring period according to the numerical comparison result to obtain the monitoring period type division data;

[0016] Step S15: Define the periodic draft depth average value and the monitoring period type division data as the preliminary ship draft monitoring data.

[0017] Furthermore, in the above-mentioned step S13, the following specific steps are further included:

[0018] Step S131: Respectively obtain the draft depth values corresponding to the target ship at the first depth monitoring time point to the a-th depth monitoring time point through a laser level to obtain the first draft depth value to the a-th draft depth value;

[0019] Step S132: Calculate the average value of the first draft depth value to the a-th draft depth value to obtain the periodic draft depth average value;

[0020] Step S133: Calculate the variance of the first draft depth value to the a-th draft depth value to obtain the periodic draft depth variance;

[0021] Step S134: Compare the numerical values of the first draft depth value to the ath draft depth value, mark the draft depth value with the largest numerical value as the peak draft depth value, mark the draft depth value with the smallest numerical value as the trough draft depth value, calculate the difference between the peak draft depth value and the trough draft depth value, and take the absolute value of the obtained difference to get the peak-to-valley difference of the periodic draft depth;

[0022] Step S135: Obtain the periodic water area undulation coefficient by calculating the periodic draft depth variance and the peak-to-valley difference of the periodic draft depth;

[0023] Calculate the periodic water area undulation coefficient, and the specific formula is as follows:

[0024] Sqf = (1 + Zfc) 2 + Fgc;

[0025] where Sqf is the periodic water area undulation coefficient, Zfc is the periodic draft depth variance, and Fgc is the peak-to-valley difference of the periodic draft depth.

[0026] Furthermore, in step S14, the following specific steps are further included:

[0027] Step S141: Obtain the periodic draft depth variance threshold and the peak-to-valley difference threshold of the periodic draft depth respectively;

[0028] Step S142: Obtain the periodic water area undulation coefficient threshold by calculating the periodic draft depth variance threshold and the peak-to-valley difference threshold of the periodic draft depth;

[0029] Calculate the periodic water area undulation coefficient threshold, and the specific formula is as follows:

[0030] Sqfy = (1 + Zfcy) 2 + Fgcy;

[0031] where Sqfy is the periodic water area undulation coefficient threshold, Zfcy is the periodic draft depth variance threshold, and Fgcy is the peak-to-valley difference threshold of the periodic draft depth;

[0032] Step S143: When the periodic water area undulation coefficient is greater than or equal to the periodic water area undulation coefficient threshold, divide the ship draft depth monitoring period into the first type of draft monitoring period;

[0033] Step S144: When the periodic water area undulation coefficient is less than the periodic water area undulation coefficient threshold, divide the ship draft depth monitoring period into the second type of draft monitoring period.

[0034] Furthermore, in step S2, the following specific steps are further included:

[0035] Step S21: Obtain the preliminary ship draft monitoring data, and respectively obtain the average draft depth of the cycle and the data for dividing the monitoring cycle type according to the preliminary ship draft monitoring data;

[0036] Step S22: Obtain the first type of draft monitoring cycle and the second type of draft monitoring cycle respectively according to the data for dividing the monitoring cycle type;

[0037] Step S23: Monitor the installation of the floating pontoon in the first type of draft monitoring cycle, and obtain the first floating pontoon installation influence data according to the monitoring results;

[0038] Step S24: Monitor the installation of the floating pontoon in the second type of draft monitoring cycle, and obtain the second floating pontoon installation influence data according to the monitoring results;

[0039] Step S25: Define the first floating pontoon installation influence data and the second floating pontoon installation influence data as the monitoring cycle analysis data.

[0040] Furthermore, in the said Step S23, it further includes the following specific steps:

[0041] Step S231: Divide the first type of draft monitoring cycle into several sea wave undulation cycles, and name the divided sea wave undulation cycles as the first sea wave undulation cycle to the b-th sea wave undulation cycle in chronological order;

[0042] Step S232: Obtain the highest point of the draft line of the target ship in the first sea wave undulation cycle, and obtain the height value corresponding to the highest point of the draft line to get the first draft line height value. Obtain the lowest point of the draft line of the target ship in the first sea wave undulation cycle, and obtain the height value corresponding to the lowest point of the draft line to get the second draft line height value. Calculate the difference between the first draft line height value and the second draft line height value, and take the absolute value of the obtained difference to get the first cycle draft line height difference;

[0043] Step S233: Respectively obtain the cycle draft line height differences corresponding to the second sea wave undulation cycle to the b-th sea wave undulation cycle to get the second cycle draft line height difference to the b-th cycle draft line height difference;

[0044] Step S234: Obtain the maximum value of the left roll angle of the target ship in the first sea wave undulation cycle through a laser level to get the first roll angle value. Obtain the maximum value of the right roll angle of the target ship in the first sea wave undulation cycle through a laser level to get the second roll angle value;

[0045] Step S235: Calculate the first roll angle value and the second roll angle value to obtain the cycle roll angle value corresponding to the first sea wave undulation cycle, and name it the first cycle roll angle value;

[0046] Calculate the first-cycle roll angle value, and the specific formula is as follows:

[0047] Hy1 = |Jd1| + |Jd2|;

[0048] Where Hy1 is the first-cycle roll angle value, Jd1 is the first roll angle value, and Jd2 is the second roll angle value;

[0049] Step S236: Obtain the corresponding cycle roll angle values from the second wave undulation cycle to the b-th wave undulation cycle respectively, and obtain the second-cycle roll angle value to the b-th cycle roll angle value;

[0050] Step S237: Define the first-cycle roll angle value to the b-th cycle roll angle value and the first-cycle draft line height difference to the b-th cycle draft line height difference as the first floating installation influence data.

[0051] Furthermore, in the said step S24, it further includes the following specific steps:

[0052] Step S241: Obtain the average value of the cycle draft depth;

[0053] Step S242: Obtain the weight of the goods loaded on the target ship to obtain the ship's loaded cargo mass value;

[0054] Step S243: When the target ship is sailing in the water area, take the fixed point at the head of the target ship as the first feature point, draw a straight line parallel to the ship's body through the first feature point to obtain the first feature line, mark the intersection point of the first feature line and the ship's tail as the second feature point, and mark the connection line between the first feature point and the second feature point as the ship's body feature line;

[0055] Step S244: Obtain the prevailing wind direction corresponding to the second type of draft monitoring cycle through weather forecasting and obtain the included angle between the ship's body feature line and the prevailing wind direction to obtain the ship's body wind angle;

[0056] Step S245: Define the ship's loaded cargo mass value, the ship's body wind angle, and the average value of the cycle draft depth as the second floating installation influence data.

[0057] Furthermore, in the said step S3, it further includes the following specific steps:

[0058] Step S31: Obtain the preliminary ship draft monitoring data, and obtain the monitoring cycle type division data according to the preliminary ship draft monitoring data;

[0059] Step S32: Obtain the first type of draft monitoring cycle and the second type of draft monitoring cycle respectively according to the monitoring cycle type division data;

[0060] Step S33: Acquire monitoring period analysis data, and acquire first floatover installation impact data and second floatover installation impact data respectively according to the monitoring period analysis data;

[0061] Step S34: obtaining a first floatation vertical height, placing the target vessel in a first type of draft monitoring period, and adjusting the floatation to the first floatation vertical height position;

[0062] Step S35: Acquire a second floatation vertical height, place the target vessel in a second type of draft monitoring period, and adjust the floatation to the second floatation vertical height.

[0063] Furthermore, the step S34 further includes the following specific steps:

[0064] Step S341: obtaining first floatover installation impact data, and obtaining roll angle values from the first cycle to the bth cycle and waterline height difference from the first cycle to the bth cycle respectively according to the first floatover installation impact data;

[0065] Step S342: calculating the first float height adjustment coefficient by combining the roll angle value from the first cycle to the roll angle value from the bth cycle and the waterline height difference from the first cycle to the waterline height difference from the bth cycle;

[0066] The first floatation height adjustment coefficient is calculated using the following formula:

[0067]

[0068] Wherein, Tjx1 is the first float height adjustment coefficient, Gci is the waterline height difference in the i-th cycle, Hyi is the roll angle value in the i-th cycle, b is the quantity value corresponding to the wave heaving cycle, and s1 is the set proportional coefficient;

[0069] Step S343: obtaining a floatation reference installation height value, and calculating the floatation reference installation height value and a first floatation height adjustment coefficient to obtain a first floatation vertical height;

[0070] The first floatation vertical height is calculated using the following formula:

[0071] Fgd1=Gjz×(1-Tjx1);

[0072] Among them, Fgd1 is the first floatation vertical height, Gjz is the floatation reference installation height value, and Tjx1 is the first floatation height adjustment coefficient.

[0073] Furthermore, the step S35 further includes the following specific steps:

[0074] Step S351: obtaining second floatation installation impact data, and obtaining the value of the mass of cargo loaded on the ship, the wind direction angle of the ship, and the average value of the periodic draft depth according to the second floatation installation impact data;

[0075] Step S352: Calculating the second float height adjustment coefficient by taking into account the mass of the cargo loaded on the ship, the wind direction angle of the ship, and the average value of the periodic draft;

[0076] The second floatation height adjustment coefficient is calculated using the following formula:

[0077]

[0078] Among them, Tjx2 is the second float height adjustment coefficient, Csd is the mass of cargo loaded on the ship, Cfj is the wind direction angle of the ship, Css is the average periodic draft depth, and s2 is the set proportional coefficient;

[0079] Step S353: obtaining a floatation reference installation height value, and calculating a second floatation vertical height by combining the floatation reference installation height value and a second floatation height adjustment coefficient;

[0080] The second floatation vertical height is calculated using the following formula:

[0081] Fgd2=Gjz×(1-Tjx2);

[0082] Among them, Fgd2 is the second floatation vertical height, Gjz is the floatation reference installation height value, and Tjx2 is the second floatation height adjustment coefficient.

[0083] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0084] 1. The present invention divides the ship draft depth monitoring period into a first type of draft monitoring period and a second type of draft monitoring period, and adopts different methods to adjust the ship float height during the first type of draft monitoring period and the second type of draft monitoring period, which can effectively improve the pertinence of the ship float height adjustment method;

[0085] 2. The present invention monitors the floating installation influencing factors for the first type of draft monitoring period and the second type of draft monitoring period respectively based on the preliminary monitoring data of the ship's draft, and obtains the first floating installation influencing data and the second floating installation influencing data respectively according to the monitoring results, and determines the floating height of the ship by combining the first floating installation influencing data and the second floating installation influencing data, which can effectively improve the accuracy of the floating height determination and the safety of the ship's navigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0087] Figure 1 It is a flowchart of the implementation steps of the present invention;

[0088] Figure 2 It is a schematic diagram of the draft line of the present invention. Specific Embodiments

[0089] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0090] Embodiment 1

[0091] Please refer to Figure 1 , the present invention provides a technical solution: a method for determining the vertical position of a floating installation using a laser level, including the following specific steps:

[0092] Step S1: Obtain the ship draft monitoring period, monitor the draft depth of the target ship during the ship draft monitoring period, and obtain the average draft depth and the water area undulation coefficient of the period according to the monitoring results. Obtain the threshold of the water area undulation coefficient of the period, compare the water area undulation coefficient of the period with the threshold of the water area undulation coefficient of the period, and divide the ship draft monitoring period into the first type of draft monitoring period and the second type of draft monitoring period according to the result of the numerical comparison to obtain the monitoring period type division data. Define the monitoring period type division data and the average draft depth of the period as the preliminary ship draft monitoring data;

[0093] In the step S1, it further includes the following specific steps:

[0094] Step S11: When the target ship is sailing in the water area, mark the time value corresponding to the current moment as the first draft monitoring time point, and mark a second draft monitoring time point in the period before the first draft monitoring time point. The time interval between the first draft monitoring time point and the second draft monitoring time point is a first characteristic monitoring duration. Mark the period between the first draft monitoring time point and the second draft monitoring time point as the ship draft monitoring period;

[0095] It should be noted here that:

[0096] In this application, the target ship designed here is the ship that needs to determine the vertical position of the floating installation;

[0097] In this application, as the time value corresponding to the current moment changes, the first draft monitoring time point and the second draft monitoring time point also change accordingly, so as to realize the dynamic update of the ship draft depth monitoring period;

[0098] In this application, the specific duration value corresponding to the designed first feature monitoring duration here is 180 seconds.

[0099] Step S12: Mark a number of draft depth monitoring time points within the ship draft depth monitoring period, and name the marked draft depth monitoring time points as the first depth monitoring time point to the a-th depth monitoring time point in chronological order;

[0100] It should be noted here that:

[0101] In this application, a designed here is the numerical value corresponding to the number of draft depth monitoring time points, and a is an integer greater than 0;

[0102] Step S13: Obtain the periodic water area undulation coefficient and the periodic draft depth variance;

[0103] In the said step S13, it further includes the following specific steps:

[0104] Step S131: Respectively obtain the draft depth values of the target ship corresponding to the first depth monitoring time point to the a-th depth monitoring time point through a laser leveler, and obtain the first draft depth value to the a-th draft depth value;

[0105] Step S132: Calculate the average value of the first draft depth value to the a-th draft depth value to obtain the periodic draft depth average value;

[0106] Step S133: Calculate the variance of the first draft depth value to the a-th draft depth value to obtain the periodic draft depth variance;

[0107] Step S134: Compare the numerical sizes of the first draft depth value to the a-th draft depth value, mark the draft depth value with the largest numerical value as the peak draft depth value, mark the draft depth value with the smallest numerical value as the valley draft depth value, calculate the difference between the peak draft depth value and the valley draft depth value, and take the absolute value of the obtained difference to obtain the periodic draft depth peak-to-valley difference;

[0108] Step S135: Obtain the periodic water area undulation coefficient by calculating the periodic draft depth variance and the periodic draft depth peak-to-valley difference;

[0109] Calculate the periodic water area undulation coefficient, and the specific formula is as follows:

[0110] Sqf=(1 + Zfc) 2 + Fgc;

[0111] Among them, Sqf is the periodic water area undulation coefficient, Zfc is the variance of the periodic draft depth, and Fgc is the peak-to-valley difference of the periodic draft depth;

[0112] Step S14: Obtain the threshold of the periodic water area undulation coefficient, compare the periodic water area undulation coefficient with the threshold of the periodic water area undulation coefficient numerically, and divide the ship draft depth monitoring period into the first type of draft monitoring period and the second type of draft monitoring period according to the numerical comparison result, so as to obtain the monitoring period type division data;

[0113] In the said step S14, the following specific steps are further included:

[0114] Step S141: Obtain the threshold of the variance of the periodic draft depth and the threshold of the peak-to-valley difference of the periodic draft depth respectively;

[0115] It should be noted here that:

[0116] In this application, the threshold of the variance of the periodic draft depth and the threshold of the peak-to-valley difference of the periodic draft depth designed here are respectively the maximum variance of the periodic draft depth and the maximum peak-to-valley difference of the periodic draft depth corresponding to the second type of draft monitoring period.

[0117] Step S142: Calculate the threshold of the periodic water area undulation coefficient from the threshold of the variance of the periodic draft depth and the threshold of the peak-to-valley difference of the periodic draft depth;

[0118] The calculation of the threshold of the periodic water area undulation coefficient is as follows:

[0119] Sqfy = (1 + Zfcy) 2 + Fgcy;

[0120] Among them, Sqfy is the threshold of the periodic water area undulation coefficient, Zfcy is the threshold of the variance of the periodic draft depth, and Fgcy is the threshold of the peak-to-valley difference of the periodic draft depth;

[0121] Step S143: When the periodic water area undulation coefficient is greater than or equal to the threshold of the periodic water area undulation coefficient, divide the ship draft depth monitoring period into the first type of draft monitoring period;

[0122] Step S144: When the periodic water area undulation coefficient is less than the threshold of the periodic water area undulation coefficient, divide the ship draft depth monitoring period into the second type of draft monitoring period;

[0123] Step S15: Define the average value of the periodic draft depth and the monitoring period type division data as the preliminary ship draft monitoring data.

[0124] Step S2: Monitor the influencing factors of floating installation for the first type of draft monitoring period and the second type of draft monitoring period respectively according to the preliminary ship draft monitoring data, and obtain the first floating installation influence data and the second floating installation influence data respectively according to the monitoring results, so as to obtain the monitoring period analysis data;

[0125] In step S2, the following specific steps are further included:

[0126] Step S21: Obtain the preliminary ship draft monitoring data, and obtain the average draft depth of the period and the monitoring period type division data respectively according to the preliminary ship draft monitoring data;

[0127] Step S22: Obtain the first type of draft monitoring period and the second type of draft monitoring period respectively according to the monitoring period type division data;

[0128] Step S23: Monitor the installation of the floating pontoon in the first type of draft monitoring period, and obtain the first floating installation influence data according to the monitoring results;

[0129] In step S23, the following specific steps are further included:

[0130] Step S231: Divide the first type of draft monitoring period into several sea wave fluctuation periods, and name the divided sea wave fluctuation periods as the first sea wave fluctuation period to the b-th sea wave fluctuation period in chronological order;

[0131] It should be noted here that:

[0132] In this application, b designed here is the numerical value corresponding to the number of sea wave fluctuation periods, and b is an integer greater than 0;

[0133] In this application, when the interval period between the highest points of the waterline of the target ship caused by the sea waves continuously twice is divided into a sea wave fluctuation period;

[0134] Step S232: Please refer to Figure 2 , obtain the highest point of the waterline of the target ship in the first sea wave fluctuation period, and obtain the height value corresponding to the highest point of the waterline to get the first waterline height value, obtain the lowest point of the waterline of the target ship in the first sea wave fluctuation period, and obtain the height value corresponding to the lowest point of the waterline to get the second waterline height value, calculate the difference between the first waterline height value and the second waterline height value, and take the absolute value of the obtained difference to get the first period waterline height difference;

[0135] Step S233: Obtain the period waterline height differences corresponding to the second sea wave fluctuation period to the b-th sea wave fluctuation period respectively, to get the second period waterline height difference to the b-th period waterline height difference;

[0136] Step S234: Obtain the maximum value of the left - rolling angle of the target ship within the first sea - wave undulation period through a laser level to get the first rolling - angle value, and obtain the maximum value of the right - rolling angle of the target ship within the first sea - wave undulation period through a laser level to get the second rolling - angle value;

[0137] Step S235: Calculate the first sea - wave undulation period - corresponding periodic rolling - angle value from the first rolling - angle value and the second rolling - angle value, and name it the first - period rolling - angle value;

[0138] Calculate the first - period rolling - angle value, and the specific formula is as follows:

[0139] Hy1 = |Jd1|+|Jd2|;

[0140] Where, Hy1 is the first - period rolling - angle value, Jd1 is the first rolling - angle value, and Jd2 is the second rolling - angle value;

[0141] Step S236: Respectively obtain the periodic rolling - angle values corresponding to the second sea - wave undulation period to the b - th sea - wave undulation period to get the second - period rolling - angle value to the b - th - period rolling - angle value;

[0142] Step S237: Define the first - period rolling - angle value to the b - th - period rolling - angle value and the first - period draft - line height difference to the b - th - period draft - line height difference as the first floating - support installation influence data;

[0143] Step S24: Monitor the installation of the floating support in the second - type draft monitoring period, and obtain the second floating - support installation influence data according to the monitoring results;

[0144] In the said step S24, it further includes the following specific steps:

[0145] Step S241: Obtain the average value of the periodic draft depth;

[0146] Step S242: Obtain the weight of the goods loaded on the target ship to get the ship - loaded cargo mass value;

[0147] Step S243: When the target ship is sailing in the water area, take the fixed point at the head of the target ship as the first feature point, draw a straight line parallel to the ship's hull through the first feature point to get the first feature line, mark the intersection point of the first feature line and the ship's stern as the second feature point, and mark the connection line between the first feature point and the second feature point as the ship - hull feature line;

[0148] Step S244: Obtain the prevailing wind direction corresponding to the second - type draft monitoring period through weather forecasting and obtain the included angle between the ship - hull feature line and the prevailing wind direction to get the ship - hull wind direction angle;

[0149] Step S245: Define the ship's loaded cargo mass value, the ship's body wind direction angle, and the average value of the periodic draft depth as the second floating installation influence data;

[0150] Step S25: Define the first floating installation influence data and the second floating installation influence data as the monitoring period analysis data.

[0151] Step S3: Adjust the floating height of the ship for the first type of draft monitoring period and the second type of draft monitoring period respectively according to the preliminary ship draft monitoring data and the monitoring period analysis data;

[0152] In the said Step S3, the following specific steps are further included:

[0153] Step S31: Obtain the preliminary ship draft monitoring data, and obtain the monitoring period type division data according to the preliminary ship draft monitoring data;

[0154] Step S32: Obtain the first type of draft monitoring period and the second type of draft monitoring period respectively according to the monitoring period type division data;

[0155] Step S33: Obtain the monitoring period analysis data, and obtain the first floating installation influence data and the second floating installation influence data respectively according to the monitoring period analysis data;

[0156] Step S34: Obtain the first floating vertical height, place the target ship in the first type of draft monitoring period, and adjust the floating to the first floating vertical height position;

[0157] In the said Step S34, the following specific steps are further included:

[0158] Step S341: Obtain the first floating installation influence data, and obtain the first cycle roll angle value to the bth cycle roll angle value and the first cycle draft line height difference to the bth cycle draft line height difference respectively according to the first floating installation influence data;

[0159] Step S342: Calculate the first floating height adjustment coefficient from the first cycle roll angle value to the bth cycle roll angle value and the first cycle draft line height difference to the bth cycle draft line height difference;

[0160] Calculate the first floating height adjustment coefficient, and the specific formula is as follows:

[0161]

[0162] Among them, Tjx1 is the first floating height adjustment coefficient, Gci is the draft line height difference of the ith cycle, Hyi is the roll angle value of the ith cycle, b is the numerical value corresponding to the number of sea wave undulation cycles, and s1 is the set proportionality coefficient;

[0163] It should be noted here that:

[0164] In this application, the difference in draft line height in the i-th cycle involved here can be the draft line height difference in any cycle from the draft line height difference in the first cycle to the draft line height difference in the b-th cycle, and the value of the roll angle in the i-th cycle involved here can be the value of the roll angle in the first cycle to the value of the roll angle in the b-th cycle;

[0165] In this application, the specific function of the proportionality coefficient s1 involved here is to adjust the first floating support height adjustment coefficient to a value between 0 and 1;

[0166] Step S343: Obtain the numerical value of the reference installation height of the floating support, and calculate the first vertical height of the floating support by calculating the numerical value of the reference installation height of the floating support and the first floating support height adjustment coefficient;

[0167] Calculate the first vertical height of the floating support, and the specific formula is as follows:

[0168] Fgd1 = Gjz × (1 - Tjx1);

[0169] Wherein, Fgd1 is the first vertical height of the floating support, Gjz is the numerical value of the reference installation height of the floating support, and Tjx1 is the first floating support height adjustment coefficient;

[0170] It should be noted here that:

[0171] The numerical value of the reference installation height of the floating support designed here is the installation height value of the floating support in a windless and wave-free water area;

[0172] Step S35: Obtain the second vertical height of the floating support, place the target ship in the second type of draft monitoring cycle, and adjust the floating support to the second vertical height of the floating support;

[0173] In the said step S35, it further includes the following specific steps:

[0174] Step S351: Obtain the data affecting the installation of the second floating support, and respectively obtain the numerical value of the mass of the goods loaded on the ship, the wind direction angle of the ship's hull, and the average value of the draft depth in the cycle according to the data affecting the installation of the second floating support;

[0175] Step S352: Calculate the second floating support height adjustment coefficient by calculating the numerical value of the mass of the goods loaded on the ship, the wind direction angle of the ship's hull, and the average value of the draft depth in the cycle;

[0176] Calculate the second floating support height adjustment coefficient, and the specific formula is as follows:

[0177]

[0178] Wherein, Tjx2 is the second floating support height adjustment coefficient, Csd is the numerical value of the mass of the goods loaded on the ship, Cfj is the wind direction angle of the ship's hull, Css is the average value of the periodic draft depth, and s2 is the set proportionality coefficient;

[0179] It should be noted here that:

[0180] In this application, the specific function of the proportionality coefficient s2 involved here is to adjust the first floating support height adjustment coefficient to a value between 0 and 1;

[0181] Step S353: Obtain the numerical value of the reference installation height of the floating support, and calculate the second vertical height of the floating support by calculating the numerical value of the reference installation height of the floating support and the second floating support height adjustment coefficient;

[0182] Calculate the second vertical height of the floating support, and the specific formula is as follows:

[0183] Fgd2 = Gjz × (1 - Tjx2);

[0184] Wherein, Fgd2 is the second vertical height of the floating support, Gjz is the numerical value of the reference installation height of the floating support, and Tjx2 is the second floating support height adjustment coefficient.

[0185] In this application, if there are corresponding calculation formulas, the above calculation formulas are all calculated by taking the numerical values without dimensions. The coefficients such as the weight coefficient and the proportionality coefficient in the formula are set to obtain a result value by quantifying each parameter. Regarding the magnitudes of the weight coefficient and the proportionality coefficient, as long as the proportional relationship between the parameters and the result value is not affected.

[0186] The above - disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention.

Claims

1. A method for determining the vertical position of a floating installation using a laser level, characterized in that, Including: Step S1: Obtain the ship draft monitoring period, monitor the draft depth of the target ship during the ship draft monitoring period, obtain the average draft depth of the period and the water area undulation coefficient of the period according to the monitoring results, obtain the threshold of the water area undulation coefficient of the period, compare the water area undulation coefficient of the period with the threshold of the water area undulation coefficient of the period, divide the ship draft monitoring period into the first type of draft monitoring period and the second type of draft monitoring period according to the result of the numerical comparison, obtain the monitoring period type division data, and define the monitoring period type division data and the average draft depth of the period as the preliminary ship draft monitoring data; Step S2: Monitor the influencing factors of floating installation for the first type of draft monitoring period and the second type of draft monitoring period respectively according to the preliminary ship draft monitoring data, and obtain the first floating installation influence data and the second floating installation influence data respectively according to the monitoring results, so as to obtain the monitoring period analysis data; Step S3: Adjust the floating height of the target ship in the first type of draft monitoring period and the second type of draft monitoring period respectively according to the preliminary ship draft monitoring data and the monitoring period analysis data.

2. The method for determining the vertical position of floating installation according to claim 1, which uses a laser level, is characterized in that In the said step S1, it further includes the following specific steps: Step S11: When the target ship is sailing in the water area, mark a ship draft monitoring period; Step S12: Mark the first depth monitoring time point to the a-th depth monitoring time point within the ship draft monitoring period; Step S13: Obtain the water area undulation coefficient of the period and the variance of the draft depth of the period; Step S14: Obtain the threshold of the water area undulation coefficient of the period, compare the water area undulation coefficient of the period with the threshold of the water area undulation coefficient of the period, divide the ship draft monitoring period into the first type of draft monitoring period and the second type of draft monitoring period according to the result of the numerical comparison, and obtain the monitoring period type division data; Step S15: Define the average draft depth of the period and the monitoring period type division data as the preliminary ship draft monitoring data.

3. A method for determining the vertical position of a floating support installation using a laser level according to claim 2, characterized in that, In the said step S13, it further includes the following specific steps: Step S131: Respectively obtain the draft depth values corresponding to the target ship from the first depth monitoring time point to the a-th depth monitoring time point through a laser level, and obtain the first draft depth value to the a-th draft depth value; Step S132: Calculate the average of the first draft depth value to the a-th draft depth value to obtain the average draft depth of the period; Step S133: Calculate the variance of the first draft depth value to the a-th draft depth value to obtain the variance of the draft depth of the period; Step S134: Compare the numerical sizes of the first draft depth value to the a-th draft depth value, mark the draft depth value with the largest numerical value as the peak draft depth value, mark the draft depth value with the smallest numerical value as the valley draft depth value, calculate the difference between the peak draft depth value and the valley draft depth value, and take the absolute value of the obtained difference to obtain the peak-valley difference of the draft depth of the period; Step S135: Calculate the water area undulation coefficient of the period through the variance of the draft depth of the period and the peak-valley difference of the draft depth of the period; Calculate the undulation coefficient of the periodic water area. The specific formula is as follows: Sqf = (1 + Zfc) 2 + Fgc; Among them, Sqf is the undulation coefficient of the periodic water area, Zfc is the variance of the periodic draft depth, and Fgc is the peak-to-valley difference of the periodic draft depth.

4. A method for determining the vertical position of a floating installation using a laser level according to claim 2, characterized in that In the step S14, the following specific steps are further included: Step S141: Obtain the variance threshold of the periodic draft depth and the peak-to-valley difference threshold of the periodic draft depth respectively; Step S142: Calculate the undulation coefficient threshold of the periodic water area from the variance threshold of the periodic draft depth and the peak-to-valley difference threshold of the periodic draft depth; Step S143: When the undulation coefficient of the periodic water area is greater than or equal to the undulation coefficient threshold of the periodic water area, divide the ship draft depth monitoring period into the first type of draft monitoring period; Step S144: When the undulation coefficient of the periodic water area is less than the undulation coefficient threshold of the periodic water area, divide the ship draft depth monitoring period into the second type of draft monitoring period.

5. A method for determining the vertical position of a floating installation using a laser level according to claim 1, characterized in that In the step S2, the following specific steps are further included: Step S21: Obtain the preliminary ship draft monitoring data, and respectively obtain the average value of the periodic draft depth and the data for dividing the monitoring period type according to the preliminary ship draft monitoring data; Step S22: Obtain the first type of draft monitoring period and the second type of draft monitoring period respectively according to the data for dividing the monitoring period type; Step S23: Monitor the installation of the floating support in the first type of draft monitoring period, and obtain the first floating support installation influence data according to the monitoring results; Step S24: Monitor the installation of the floating support in the second type of draft monitoring period, and obtain the second floating support installation influence data according to the monitoring results; Step S25: Define the first floating support installation influence data and the second floating support installation influence data as the monitoring period analysis data.

6. The method for determining the vertical position of the floating support installation according to claim 5, wherein a laser level is applied, characterized in that In the step S23, the following specific steps are further included: Step S231: Divide the first type of draft monitoring period into several sea wave undulation periods, and name the divided sea wave undulation periods as the first sea wave undulation period to the b-th sea wave undulation period in chronological order; Step S232: Obtain the highest point of the draft line of the target ship in the first sea wave undulation period, obtain the height value corresponding to the highest point of the draft line to get the first draft line height value, obtain the lowest point of the draft line of the target ship in the first sea wave undulation period, obtain the height value corresponding to the lowest point of the draft line to get the second draft line height value, calculate the difference between the first draft line height value and the second draft line height value, and take the absolute value of the obtained difference to get the first periodic draft line height difference; Step S233: Obtain the periodic draft line height differences corresponding to the second sea wave undulation period to the b-th sea wave undulation period respectively to get the second periodic draft line height difference to the b-th periodic draft line height difference; Step S234: Obtain the maximum value of the left roll angle of the target ship in the first sea wave undulation period through a laser level to get the first roll angle value, and obtain the maximum value of the right roll angle of the target ship in the first sea wave undulation period through a laser level to get the second roll angle value; Step S235: Calculate the period roll angle value corresponding to the first wave undulation period from the first roll angle value and the second roll angle value, and name it the first period roll angle value; Perform calculations on the first period roll angle value, and the specific formula is as follows: Hy1 = |Jd1| + |Jd2|; Where, Hy1 is the first period roll angle value, Jd1 is the first roll angle value, and Jd2 is the second roll angle value; Step S236: Obtain the period roll angle values corresponding to the second wave undulation period to the b-th wave undulation period respectively, to obtain the second period roll angle value to the b-th period roll angle value; Step S237: Define the first period roll angle value to the b-th period roll angle value and the first period draft line height difference to the b-th period draft line height difference as the first floating installation influence data.

7. A method for determining the vertical position of a floating installation using a laser level according to claim 5, characterized in that In the said step S24, the following specific steps are further included: Step S241: Obtain the average value of the period draft depth; Step S242: Obtain the numerical value of the weight of the goods loaded on the target ship to obtain the ship-loaded goods mass value; Step S243: When the target ship is navigating in the water area, take the fixed point at the head of the target ship as the first feature point, draw a straight line parallel to the ship's hull through the first feature point to obtain the first feature line, mark the intersection point of the first feature line and the stern of the ship as the second feature point, and mark the connection line between the first feature point and the second feature point as the ship's hull feature line; Step S244: Obtain the prevailing wind direction corresponding to the second type of draft monitoring period through weather forecasting, obtain the included angle value between the ship's hull feature line and the prevailing wind direction to obtain the ship's hull wind direction angle; Step S245: Define the ship-loaded goods mass value, the ship's hull wind direction angle, and the average value of the period draft depth as the second floating installation influence data.

8. A method for determining the vertical position of a floating support installation using a laser level according to claim 1, characterized in that, In the said step S3, the following specific steps are further included: Step S31: Obtain the preliminary ship draft monitoring data, and obtain the monitoring period type division data according to the preliminary ship draft monitoring data; Step S32: Obtain the first type of draft monitoring period and the second type of draft monitoring period respectively according to the monitoring period type division data; Step S33: Obtain the monitoring period analysis data, and obtain the first floating installation influence data and the second floating installation influence data respectively according to the monitoring period analysis data; Step S34: Obtain the first floating vertical height, when the target ship is in the first type of draft monitoring period, adjust the floating to the first floating vertical height position; Step S35: Obtain the second floating vertical height, when the target ship is in the second type of draft monitoring period, adjust the floating to the second floating vertical height.

9. The method for determining the vertical position of the floating installation according to claim 8, wherein a laser level is applied, characterized in that In the said step S34, the following specific steps are further included: Step S341: Obtain the first floating installation influence data, and obtain the first period roll angle value to the b-th period roll angle value and the first period draft line height difference to the b-th period draft line height difference respectively according to the first floating installation influence data; Step S342: Calculate the first floating support height adjustment coefficient based on the roll angle values from the first period to the b-th period and the differences in draft line heights from the first period to the b-th period. Calculate the first floating support height adjustment coefficient, and the specific formula is as follows: Among them, Tjx1 is the first floating support height adjustment coefficient, Gci is the difference in draft line height in the i-th period, Hyi is the roll angle value in the i-th period, b is the numerical value corresponding to the wave fluctuation period, and s1 is the set proportionality coefficient. Step S343: Obtain the reference installation height value of the floating support, and calculate the first vertical height of the floating support by calculating the reference installation height value of the floating support and the first floating support height adjustment coefficient. Calculate the first vertical height of the floating support, and the specific formula is as follows: Fgd1 = Gjz × (1 - Tjx1); Among them, Fgd1 is the first vertical height of the floating support, Gjz is the reference installation height value of the floating support, and Tjx1 is the first floating support height adjustment coefficient.

10. A method for determining the vertical position of floating installation using a laser level according to claim 8, characterized in that, In the said step S35, it further includes the following specific steps: Step S351: Obtain the second floating support installation influence data, and respectively obtain the value of the mass of the goods loaded on the ship, the ship's body wind direction angle, and the average value of the periodic draft depth according to the second floating support installation influence data. Step S352: Calculate the second floating support height adjustment coefficient by calculating the value of the mass of the goods loaded on the ship, the ship's body wind direction angle, and the average value of the periodic draft depth. Calculate the second floating support height adjustment coefficient, and the specific formula is as follows: Among them, Tjx2 is the second floating support height adjustment coefficient, Csd is the value of the mass of the goods loaded on the ship, Cfj is the ship's body wind direction angle, Css is the average value of the periodic draft depth, and s2 is the set proportionality coefficient. Step S353: Obtain the reference installation height value of the floating support, and calculate the second vertical height of the floating support by calculating the reference installation height value of the floating support and the second floating support height adjustment coefficient. Calculate the second vertical height of the floating support, and the specific formula is as follows: Fgd2 = Gjz × (1 - Tjx2); Among them, Fgd2 is the second vertical height of the floating support, Gjz is the reference installation height value of the floating support, and Tjx2 is the second floating support height adjustment coefficient.

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