Method, device, electronic device and storage medium for determining underwater terrain changes in a waterway

Abstract

The present invention provides a method, device, electronic device and storage medium for determining underwater terrain changes in a waterway, and relates to the technical field of marine survey and intelligent analysis of waterway terrain changes. The method includes: obtaining the construction trajectory and construction process data of a target construction ship performing waterway maintenance in a target construction area during waterway maintenance; determining the construction volume of the target construction ship at various locations in the target construction area according to the construction process data and the construction trajectory; determining the underwater terrain change at various locations in the target construction area according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship; the underwater terrain analysis model is determined based on the historical construction volume of the target construction ship and the corresponding historical underwater terrain change; based on the underwater terrain change at each location, determining the underwater terrain data at each location in the target construction area. The present invention can accurately and timely obtain the underwater terrain and its changes of the waterway during waterway maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean survey and intelligent analysis of waterway topography changes, and in particular to a method, device, electronic equipment and storage medium for determining underwater waterway topography changes. Background Art

[0002] During the dredging construction and maintenance of the waterway, the progress of waterway maintenance is generally judged by determining the underwater topography changes of the waterway. Therefore, it is very important to obtain the underwater topography changes of the waterway accurately and timely.

[0003] In the related technology, channel depth measurement is generally carried out at different stages of the channel maintenance process to obtain multiple channel depth maps. By comparing two adjacent channel depth maps, the change in underwater terrain can be obtained, and then the completion status of the channel maintenance progress can be judged. Figure 1 It usually takes 2-6 days, which means there is a certain lag and it is impossible to obtain underwater terrain changes in time. Figure 1 Generally, only the phased construction progress can be obtained. During the mapping window period, the changes in underwater terrain cannot be known, and it is difficult to continuously and accurately grasp the changes in underwater terrain of the waterway. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, electronic device and storage medium for determining underwater topography changes of a waterway, so as to accurately and timely obtain the underwater topography of the waterway and its changes during waterway maintenance.

[0005] In a first aspect, an embodiment of the present invention provides a method for determining underwater terrain changes in a waterway, comprising:

[0006] Acquire the construction parameters of the target construction vessel performing waterway maintenance in the target construction area during the waterway maintenance period; wherein the construction parameters include construction trajectory and construction process data;

[0007] Determining the construction volume of the target construction vessel at each position within the target construction area according to the construction process data and the construction trajectory;

[0008] Determine the underwater terrain change at each position in the target construction area according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship; wherein the underwater terrain analysis model is determined according to the historical construction volume of the target construction ship and the corresponding historical underwater terrain change;

[0009] Based on the underwater terrain changes at the various positions, underwater terrain data at the various positions in the target construction area are determined.

[0010] In a possible implementation, the construction process data includes tank capacity process data and dredging weight process data;

[0011] Determining the construction volume of the target construction vessel at various locations within the target construction area according to the construction process data and the construction trajectory includes:

[0012] respectively determining a tank capacity time process line corresponding to the tank capacity process data and a dredging weight time process line corresponding to the dredging weight process data;

[0013] According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the first tank capacity and the first dredging amount corresponding to each time before the construction of the target construction ship at each position, and the second tank capacity and the second dredging amount corresponding to each time after the construction;

[0014] Based on the first tank capacity and the first dredging amount corresponding to the target construction ship before construction at each location, and the second tank capacity and the second dredging amount corresponding to the target construction ship after construction, the construction amount of the target construction ship at each location is determined respectively.

[0015] In a possible implementation, the construction process data includes tank capacity process data and dredging weight process data;

[0016] Determining the construction volume of the target construction vessel at various locations within the target construction area according to the construction process data and the construction trajectory includes:

[0017] Determine the current tank capacity of the target construction vessel and the tank capacity time process line corresponding to the tank capacity process data according to the tank capacity process data;

[0018] Determine the current dredging volume of the target construction vessel and the dredging weight time process line corresponding to the dredging weight process data according to the dredging weight process data;

[0019] Determining the construction volume of the target construction vessel in the target construction area based on the current tank capacity and the current dredging volume;

[0020] According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the tank capacity change and dredging weight change corresponding to each position;

[0021] Determine the construction ratio of each location in the target construction area according to the change in tank capacity and the change in dredging weight corresponding to each location;

[0022] The construction volume is divided according to the construction ratio to obtain the construction volume of the target construction ship at each position.

[0023] In a possible implementation, determining the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship includes:

[0024] Obtain the natural sedimentation volume corresponding to each location in the target construction area;

[0025] The construction volume and natural siltation volume corresponding to each position in the target construction area are input into the underwater terrain analysis model to obtain the underwater terrain change volume at each position in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation volume and corresponding historical underwater terrain change volume of the target construction ship.

[0026] In a possible implementation, obtaining the natural sedimentation amount corresponding to each location in the target construction area includes:

[0027] Acquiring meteorological data and waterway data within the target construction area;

[0028] The meteorological data and the waterway data are input into a preset siltation analysis model to obtain the natural siltation amount at each location output by the siltation analysis model; wherein the siltation analysis model is trained based on historical meteorological data, historical waterway data and corresponding historical natural siltation amount of the target construction area.

[0029] In a possible implementation, based on the first tank capacity and the first dredging amount corresponding to the target construction ship before construction at each location, and the second tank capacity and the second dredging amount corresponding to the target construction ship after construction, the construction amount of the target construction ship at each location is determined respectively, including:

[0030] According to the expression: , respectively determine the construction volume of the target construction vessel at each position;

[0031] In the formula, Indicates The construction volume at each location, Indicates Position No. The first dredging volume corresponding to the first construction, Indicates Position No. The second dredging volume after the first construction, Indicates Position No. The first tank capacity before the first construction, Indicates Position No. The second compartment capacity after the first construction is: represents the water density corresponding to the channel, represents the dry bulk density coefficient, Indicates the first Locations, Indicates the target construction ship Second to Construction location, Indicates The total number of constructions at each location.

[0032] In a possible implementation, after determining the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship, the method further includes:

[0033] Determine the construction completion ratio of each location in the target construction area according to the construction volume at each location in the target construction area and the pre-acquired design engineering volume at each location;

[0034] Based on the construction completion ratio, the maintenance progress of the target construction area is determined.

[0035] In a possible implementation, the dredging weight process data includes at least one of displacement process data, draft process data and loading process data.

[0036] In a possible implementation, determining underwater terrain data at each location in the target construction area based on the underwater terrain change at each location includes:

[0037] Obtaining an underwater topographic map of the target construction vessel before the target construction vessel performs the current construction in the target construction area;

[0038] The water depth at each position is determined according to the underwater terrain change at each position and the water depth at the corresponding position in the underwater terrain map, and the underwater terrain data at each position in the target construction area is obtained.

[0039] In a possible implementation, determining the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship includes:

[0040] Obtain the natural sedimentation volume and construction time corresponding to each location in the target construction area;

[0041] The construction volume, natural siltation volume and construction time corresponding to each position in the target construction area are input into the underwater terrain analysis model to obtain the underwater terrain change volume at each position in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation volume, historical construction time and corresponding historical underwater terrain change volume of the target construction ship.

[0042] In a second aspect, an embodiment of the present invention provides a device for determining underwater terrain changes in a waterway, comprising:

[0043] An acquisition module is used to acquire the construction parameters of the target construction vessel performing waterway maintenance in the target construction area during the waterway maintenance period; wherein the construction parameters include construction trajectory and construction process data;

[0044] A construction quantity determination module, used to determine the construction quantity of the target construction vessel at each position in the target construction area according to the construction process data and the construction trajectory;

[0045] A change amount determination module is used to determine the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship; wherein the underwater terrain analysis model is determined according to the historical construction amount of the target construction ship and the corresponding historical underwater terrain change amount;

[0046] The terrain determination module is used to determine the underwater terrain data at each position in the target construction area based on the underwater terrain change at each position.

[0047] In a third aspect, an embodiment of the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method described in the first aspect or any possible implementation method of the first aspect are implemented.

[0048] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect or any possible implementation method of the first aspect are implemented.

[0049] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0050] The embodiment of the present invention determines the construction volume of the target construction ship at various positions in the target construction area through the construction process data and construction trajectory of the target construction ship performing channel maintenance in the target construction area during the channel maintenance, so as to determine the construction situation of the target construction ship during the channel maintenance; then, according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship, the underwater terrain change at various positions in the target construction area is determined, and the influence of the channel maintenance construction on the underwater terrain can be determined according to the construction volume of the target construction ship; finally, based on the underwater terrain change, the underwater terrain data at various positions in the target construction area is determined, and the situation and changes of the underwater terrain of the target construction ship during a construction process can be obtained, so that the underwater terrain and maintenance progress of the channel during the channel maintenance can be obtained in a timely, accurate and continuous manner, and at the same time, the frequency of underwater measurement of the channel can be reduced, thereby reducing the cost of channel maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 This is an application scenario diagram of the method for determining underwater terrain changes in a waterway provided by an embodiment of the present invention;

[0053] Figure 2 is a flow chart of an implementation of a method for determining underwater terrain changes in a waterway provided by an embodiment of the present invention;

[0054] Figure 3 is a schematic diagram of the location of a target construction area provided by an embodiment of the present invention;

[0055] Figure 4 is a schematic structural diagram of a target construction vessel provided by an embodiment of the present invention;

[0056] Figure 5 is a schematic diagram of a cabin capacity time process line provided by an embodiment of the present invention;

[0057] Figure 6 is a schematic diagram of a dredging weight time process line provided by an embodiment of the present invention;

[0058] Figure 7 It is a schematic diagram of the structure of a device for determining underwater terrain changes in a waterway provided by an embodiment of the present invention;

[0059] Figure 8 is a schematic diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0060] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0061] The inventors have found that in order to obtain underwater topographic changes during channel maintenance, underwater measurements are usually required. The underwater topography of the channel and the progress of channel maintenance are determined by underwater mapping obtained through underwater measurements. However, it takes a long time to obtain underwater mapping, and the underwater mapping obtained is the underwater topography from a few days ago. During the underwater measurement, the construction vessel continues to carry out construction, and the underwater mapping obtained has a certain lag compared to the actual underwater topography. In addition, underwater mapping can only obtain staged underwater topography, and it is impossible to obtain underwater topographic changes between two underwater mappings. Therefore, it is necessary to consider a method for determining changes in underwater topography of a channel.

[0062] Based on the idea of ​​accurately and timely obtaining the underwater topography and its changes of the waterway during waterway maintenance, in an embodiment of the present invention, during waterway maintenance, between two underwater mappings, the construction volume of the target construction ship at each position in the target construction area is determined by the construction process data and construction trajectory of the target construction ship, and then the construction volume at each position is used to obtain the underwater topography change at each position, thereby obtaining underwater topography data. This allows timely, accurate and continuous acquisition of underwater topography changes during the construction process, while reducing the frequency of underwater measurements of the waterway and reducing the cost of waterway maintenance.

[0063] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0064] When maintaining the waterway, considering its long length, the waterway is generally divided into multiple construction areas, and construction vessels will carry out construction in the corresponding construction areas.

[0065] For example, a construction ship is working in a corresponding construction area. Figure 1The application scenario diagram of the method for determining underwater topographic changes in a waterway is shown, in which a construction area is exemplarily shown as a target construction area, and a target construction ship performs waterway maintenance construction in the target construction area. During the waterway maintenance process, the target construction ship will circulate in the target construction area, and will rake or dig the underwater silted mud while sailing. When the mud tank of the target construction ship is full of mud, the target construction ship will sail to the mud dumping point, dump the mud in the mud tank, and then return to the target construction area for construction.

[0066] In addition, the waterway maintenance construction team generally has multiple construction ships. When the target construction ship goes to the mud dumping point, other construction ships can also be used to carry out construction in the target construction area.

[0067] Figure 2 The implementation flow chart of the method for determining underwater terrain changes in a waterway provided by an embodiment of the present invention is described in detail as follows:

[0068] Step 201, obtaining construction parameters of a target construction vessel performing waterway maintenance in a target construction area during waterway maintenance; wherein the construction parameters include construction trajectory and construction process data.

[0069] In this embodiment, the construction trajectory refers to the trajectory of the target construction ship sailing in the target construction area, which can be obtained by obtaining the position of the target construction ship. The construction process data refers to the data of relevant parameters generated by the target construction ship during the construction process, for example, the mud tank level data, mud density data, tank capacity data, deadweight data, draft data, displacement data, dredging weight data and ship speed data of the target construction ship at different times during the construction process.

[0070] Here, the position coordinates of the target construction ship at different times can also be obtained. The target construction ship generally sails at a constant speed. The construction trajectory of the target construction ship can be obtained through the position coordinates at different times.

[0071] Step 202, determining the construction volume of the target construction vessel at each position in the target construction area according to the construction process data and the construction trajectory.

[0072] In this embodiment, by matching the construction process data with the construction trajectory, the dredging volume of the target construction ship at each location can be calculated, thereby obtaining the corresponding construction volume and clarifying the construction impact of the target construction ship on each location in the target construction area.

[0073] Also, see Figure 3 The target construction area is shown in the schematic diagram. The target construction area can be divided into a grid, where a grid is a position in the target construction area. Generally, the width of the grid can be consistent with the width of the target construction ship's rake head. The target construction ship circulates in the target construction area, for example Figure 3 As shown in , you can first sail in the direction of the dotted arrow, and after sailing for one circle, you can sail in a circle in the direction of the dotted arrow. Figure 3 The figure only shows one possible navigation mode and is not intended to be limiting.

[0074] Step 203, determining the underwater terrain change at each location in the target construction area based on the construction volume and the underwater terrain analysis model corresponding to the target construction ship; wherein the underwater terrain analysis model is determined based on the historical construction volume of the target construction ship and the corresponding historical underwater terrain change.

[0075] In this embodiment, the underwater terrain analysis model can establish the relationship between the construction volume of the target construction ship and the underwater terrain change, and the underwater terrain change at the corresponding location can be obtained by the construction volume at each location. The underwater terrain change can be the water depth change at the location.

[0076] Here, the construction team's multiple construction ships may have different sizes and models, and different ships may have different impacts on the underwater terrain during construction. Therefore, a corresponding underwater terrain analysis model can be established for each construction ship.

[0077] Optionally, the process of establishing the underwater terrain analysis model can be as follows:

[0078] First, the water depth of the target construction area is measured to obtain a first water depth map; the target construction ship is used to perform channel maintenance in the target construction area to obtain historical construction parameters, and the historical construction volume of the target construction ship at various locations in the target construction area is determined based on the historical construction parameters; the water depth of the target construction area after construction is measured to obtain a second water depth map; based on the first water depth map and the second water depth map, the historical underwater terrain changes at various locations in the target construction area are obtained; based on the historical construction volume and the historical underwater terrain changes, an underwater terrain analysis model corresponding to the target construction ship is fitted and established.

[0079] In this embodiment, the water depth changes corresponding to each position in the target construction area, that is, the historical underwater terrain changes at each position, can be obtained through two depth mappings. Then, the historical construction volume and the historical underwater terrain changes are fitted to obtain the corresponding relationship model between the two.

[0080] Step 204, determining underwater terrain data at each location in the target construction area based on the underwater terrain change at each location.

[0081] In this embodiment, the change of water depth at each location can be obtained through the change of underwater terrain at each location, so that the underwater terrain data at each location, that is, the water depth, can be obtained.

[0082] Optionally, the underwater terrain data at each location in the target construction area is determined based on the amount of underwater terrain change at each location. This can be done by first obtaining an underwater terrain map of the target construction ship before the current construction in the target construction area; then determining the water depth at each location based on the amount of underwater terrain change at each location and the water depth at the corresponding location in the underwater terrain map, to obtain the underwater terrain data at each location in the target construction area.

[0083] In this embodiment, the underwater terrain change at each position and the water depth at the corresponding position in the underwater terrain map can be added to obtain a new water depth at each position, thereby forming underwater terrain data at each position in the target construction area.

[0084] Here, the underwater topographic map may be a bathymetric map obtained by previous measurements, or a new topographic map obtained by changing the bathymetric map. For example, before the first construction, or after a bathymetric map, when determining underwater topographic data, the underwater topographic map may be the most recent bathymetric map; after the mud tank of the target construction ship is full, or after mud is dumped, construction is performed again, and when determining underwater topographic data, the underwater topographic map may be the underwater topographic data obtained after the mud tank is full or after mud is dumped.

[0085] The embodiment of the present invention determines the construction volume of the target construction ship at various positions in the target construction area through the construction process data and construction trajectory of the target construction ship performing channel maintenance in the target construction area during the channel maintenance, so as to determine the construction situation of the target construction ship during the channel maintenance; then, according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship, the underwater terrain change at various positions in the target construction area is determined, and the influence of the channel maintenance construction on the underwater terrain can be determined according to the construction volume of the target construction ship; finally, based on the underwater terrain change, the underwater terrain data at various positions in the target construction area is determined, and the situation and changes of the underwater terrain of the target construction ship during a construction process can be obtained, so that the underwater terrain and maintenance progress of the channel during the channel maintenance can be obtained in a timely, accurate and continuous manner, and at the same time, the frequency of underwater measurement of the channel can be reduced, thereby reducing the cost of channel maintenance.

[0086] In some embodiments, the construction process data includes tank capacity process data and dredging weight process data.

[0087] Here, we take the trailing suction dredger as an example, see Figure 4 The structural schematic diagram of the target construction ship is shown, and a mud tank and a rake head are arranged on the target construction ship, wherein the rake head is used to rake and suck the underwater mud and absorb the mud into the mud tank for storage.

[0088] Since the scraper head operates underwater, water and mud may be sucked into the mud tank during the scraper suction process. Figure 4 The mud tank is shown in the figure, where the horizontal dotted line is the liquid level height of the mud tank. The mud tank contains mud and water, with the mud at the bottom of the mud tank and water above it.

[0089] During the construction process, when the mud tank is just full, it contains a large amount of water. Therefore, the overflow channel of the mud tank can be opened to continue the construction, that is, to rake and suck the underwater silted mud and let the water above the mud tank overflow.

[0090] Correspondingly, during the construction process of the target construction vessel, the corresponding tank capacity data and dredging weight data (i.e., mud tank weight data) at different times constitute tank capacity process data and dredging weight process data.

[0091] This embodiment determines the construction volume of the target construction ship at each position in the target construction area based on the construction process data and the construction trajectory, which can be: first, determine the tank capacity time process line corresponding to the tank capacity process data, and the dredging weight time process line corresponding to the dredging weight process data; then, according to the time corresponding to each position in the target construction area of ​​the construction trajectory, match the tank capacity time process line and the dredging weight time process line with the construction trajectory to obtain the first tank capacity and the first dredging volume corresponding to the target construction ship before each construction at each position, and the second tank capacity and the second dredging volume corresponding to after the construction; finally, based on the first tank capacity and the first dredging volume corresponding to the target construction ship before each construction at each position, and the second tank capacity and the second dredging volume corresponding to after the construction, determine the construction volume of the target construction ship at each position.

[0092] In this embodiment, the tank capacity process data corresponding to different moments are processed to form a tank capacity time process line in chronological order, and the dredging weight process data corresponding to different moments are processed to form a dredging weight time process line in chronological order.

[0093] For example, see Figure 5 The schematic diagram of the tank capacity time process line is shown in FIG. 1 , in which the tank capacity increases gradually with time, and tank capacity A represents the maximum tank capacity of the target construction ship, that is, at time B, the target construction ship reaches a full tank, the tank capacity no longer increases, and overflow begins. The excavated mud enters the mud tank, and the water with lower concentration on the surface of the mud tank is discharged through overflow. When time C is reached, the mud tank is close to full load, and the dredging is completed.

[0094] Accordingly, see Figure 6The schematic diagram of the dredging weight time process line is shown in Figure 1, where the dredging weight gradually increases with time. When the target construction ship reaches time B, the tank capacity is full and the tank capacity no longer increases. At this time, the dredging weight is a. After that, overflow begins, and the excavated mud enters the mud tank. The water with lower concentration on the surface of the mud tank is discharged through overflow. Figure 6 It can be seen that the rate of increase of dredging weight decreases accordingly after time B. When time C is reached, the mud tank is close to full load, and the dredging weight is d, and the dredging is completed.

[0095] In addition, when processing the tank capacity process data and the dredging weight process data corresponding to different moments, the tank capacity process data and the dredging weight process data can be preprocessed to ensure the smoothness of the data and reduce the impact of errors caused by data collection.

[0096] Here, if Figure 3 As shown, the target construction area can be divided into multiple grids, where one grid is taken as a position. By matching the tank capacity time process line, the dredging weight time process line and the time in the construction trajectory, the tank capacity and dredging volume of the target construction ship each time it enters and exits each grid can be obtained, thereby calculating the construction volume of the target construction ship in each grid, that is, the construction volume of the target construction ship at each position.

[0097] Optionally, based on the first tank capacity and the first dredging amount corresponding to the target construction ship before construction at each location, and the second tank capacity and the second dredging amount corresponding to the target construction ship after construction, the construction amount of the target construction ship at each location can be determined respectively, according to the expression: , respectively determine the construction volume of the target construction ship at each location; where, Indicates The construction volume at each location, Indicates Position No. The first dredging volume corresponding to the first construction, Indicates Position No. The second dredging volume after the first construction, Indicates Position No. The first tank capacity before the first construction, Indicates Position No. The second compartment capacity after the first construction is: represents the water density corresponding to the channel, represents the dry bulk density coefficient, Indicates the first Locations, Indicates the target construction ship Second to Construction location, Indicates The total number of constructions at each location.

[0098] In this embodiment, the water density corresponding to the waterway can be obtained by detecting the water sample density at the waterway, and the dry bulk density coefficient can be obtained by detecting the mud sample corresponding to the waterway.

[0099] The above article introduces the method of adding up the construction volume of the target construction ship at each location each time to obtain the construction volume at the corresponding location. It is also possible to determine the construction ratio of each location and divide the construction volume of the target construction area into corresponding locations, thereby determining the construction volume at each location. This method will be introduced below.

[0100] In other embodiments, the construction process data includes tank capacity process data and dredging weight process data.

[0101] In this embodiment, the construction amount of the target construction ship at each position in the target construction area is determined according to the construction process data and the construction trajectory, which can be:

[0102] Step 1: Determine the current tank capacity of the target construction ship and the tank capacity time process line corresponding to the tank capacity process data according to the tank capacity process data. Here, the current tank capacity can be the tank capacity size when the target construction ship reaches a full tank and the mud tank is close to a full load state and dredging is completed.

[0103] Step 2: According to the dredging weight process data, determine the current dredging volume of the target construction ship and the dredging weight time process line corresponding to the dredging weight process data. Here, the current dredging volume can be the dredging weight when the mud tank is close to full load and dredging is completed.

[0104] Step three: Based on the current tank capacity and the current dredging volume, determine the construction volume of the target construction vessel in the target construction area.

[0105] In this embodiment, the total dredging data of the target construction ship can be calculated through the current cabin capacity and current dredging volume of the target construction ship, thereby obtaining the overall construction volume of the target construction ship in the target construction area.

[0106] Step 4: According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the tank capacity change and dredging weight change corresponding to each position.

[0107] In this embodiment, the tank capacity time process line, the dredging weight time process line and the construction trajectory are matched according to time, and the total tank capacity change and dredging weight change of the target construction ship in each grid can be obtained, that is, the construction status of the target construction ship at each location.

[0108] Step 5: Determine the construction proportion of each location in the target construction area according to the change in cabin capacity and dredging weight corresponding to each location.

[0109] Step six, divide the construction volume according to the construction ratio to obtain the construction volume of the target construction ship at each location.

[0110] In this embodiment, the interference of water in the dredging process can be eliminated through the change in tank capacity and dredging weight corresponding to each position, and the actual proportion of construction for underwater silted mud at each position can be determined, so that the calculated construction volume can be allocated to each position in proportion, thereby accurately determining the construction volume at each position.

[0111] Optionally, this embodiment determines the construction volume of the target construction ship in the target construction area based on the current tank capacity and the current dredging volume, which can be based on the expression: , determine the construction volume of the target construction ship in the target construction area; where, Indicates the construction volume of the target construction ship in the target construction area, Indicates the current dredging volume of the target construction vessel, Indicates the current capacity of the target construction ship. represents the water density corresponding to the channel, Indicates dry bulk density coefficient.

[0112] The above embodiments introduce the specific process of determining the construction volume of the target construction ship at various locations within the target construction area, which requires obtaining tank capacity process data and dredging weight process data. The tank capacity process data can be obtained directly or through mud tank liquid level data; the dredging weight process data can include at least one of displacement process data, draft process data and loading process data.

[0113] Here, if the target construction ship can directly obtain the capacity data of the mud tank, the capacity process data can be obtained based on the capacity data at each moment; if the target construction ship can obtain the mud tank liquid level data, the capacity process data can be obtained based on the mud tank liquid level data at each moment and the capacity table of the target construction ship.

[0114] Correspondingly, if the target construction ship can directly obtain the weight data of the mud tank, the dredging weight process data can be obtained according to the weight data at each moment; if the target construction ship can obtain at least one of the displacement process data, the draft process data and the loading process data, the dredging weight process data can be obtained according to the displacement process data or the loading process data at each moment, or the dredging weight process data can be obtained according to the draft process data at each moment and the draft-load comparison table, or the dredging weight process data can be calculated through the displacement process data, the draft process data and the loading process data at each moment.

[0115] The following will introduce how to determine the underwater terrain change according to the construction volume. There are three main feasible ways to determine the underwater terrain change. It can be determined directly according to the construction volume, or it can be determined according to the construction volume and the natural siltation of the waterway, or it can be determined according to the construction volume, the natural siltation of the waterway and the disturbance caused by the construction. The following will introduce them in detail.

[0116] For the first method of directly determining the underwater terrain change amount according to the construction amount, reference may be made to the description in the above embodiment, which will not be repeated here.

[0117] In some embodiments, the underwater terrain change at each location in the target construction area is determined based on the construction volume and the underwater terrain analysis model corresponding to the target construction ship. The natural siltation amount corresponding to each location in the target construction area can be first obtained; the construction volume and natural siltation amount corresponding to each location in the target construction area are then input into the underwater terrain analysis model to obtain the underwater terrain change at each location in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation amount and corresponding historical underwater terrain change amount of the target construction ship.

[0118] In this embodiment, it is mainly taken into consideration that during the construction period, the waterway may also experience natural siltation. Therefore, when using the underwater terrain analysis model to determine the amount of underwater terrain change, the construction amount and natural siltation amount at each location in the target construction area are considered simultaneously to ensure the accuracy of the determination of the underwater terrain change.

[0119] In other embodiments, the underwater terrain change at each location in the target construction area is determined based on the construction volume and the underwater terrain analysis model corresponding to the target construction ship. The natural siltation amount and construction time corresponding to each location in the target construction area can be first obtained; the construction volume, natural siltation amount and construction time corresponding to each location in the target construction area are then input into the underwater terrain analysis model to obtain the underwater terrain change at each location in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation amount, historical construction time and corresponding historical underwater terrain change of the target construction ship.

[0120] In this embodiment, it is also taken into consideration that during the construction process, the target construction vessel will disturb the bottom sediment during dredging, and the mud tank of the target construction vessel will also cause disturbances when overflowing. Therefore, when determining the underwater terrain change, the disturbance change is also included.

[0121] The above-mentioned disturbance change is positively correlated with the dredging time of the target construction ship. The dredging time of the target construction ship, that is, the corresponding construction time, can be used to characterize the disturbance change, so as to use the underwater terrain analysis model, while considering the natural siltation amount and the disturbance change, to accurately determine the underwater terrain change at each location.

[0122] Optionally, the present embodiment obtains the natural siltation amount corresponding to each location in the target construction area, and the meteorological data and waterway data in the target construction area may be first obtained; the meteorological data and waterway data are then input into a preset siltation analysis model to obtain the natural siltation amount of each location output by the siltation analysis model; wherein the siltation analysis model is trained based on historical meteorological data, historical waterway data and corresponding historical natural siltation amounts of the target construction area.

[0123] In this embodiment, the amount of natural siltation is related to both meteorological data and the characteristic data of the waterway itself, so the amount of natural siltation at each location in the target construction area can be predicted using meteorological data and waterway data. The waterway data may include tide data, water flow data, wave data, and water depth data.

[0124] Here, the sedimentation analysis model can be a deep learning model, such as time series prediction algorithms such as RNN and LSTM.

[0125] When training the sedimentation analysis model, the historical natural sedimentation volume used can be obtained through measurement, or by establishing a sedimentation numerical model and using the sedimentation data model to model, thereby obtaining the historical natural sedimentation volume.

[0126] The previous article introduced the implementation process of determining the underwater topography during channel maintenance. Considering that it is also very important to obtain the maintenance progress of the channel in a timely manner, the following will continue to introduce how to determine the maintenance progress of the channel.

[0127] In some embodiments, after determining the amount of underwater terrain change at each location within the target construction area based on the construction volume and the underwater terrain analysis model corresponding to the target construction vessel, the construction completion ratio at each location within the target construction area can also be determined based on the construction volume at each location within the target construction area and the pre-acquired design engineering volume at each location; and then based on the construction completion ratio, the maintenance progress of the target construction area is determined.

[0128] In this embodiment, when maintaining the waterway, the corresponding design engineering quantity is generally determined for each construction area so that the maintained waterway meets the corresponding needs. Therefore, for the target construction area, the construction quantity at each position in the target construction area and the corresponding design engineering quantity can be used to determine the construction completion ratio at each position, and the maintenance progress of each position can be obtained, thereby obtaining the maintenance progress of the target construction area.

[0129] After obtaining the maintenance progress of the target construction area, the subsequent construction plan can be adjusted accordingly based on the maintenance progress. For example, for construction areas where the maintenance progress does not meet the standards, the construction can be accelerated or the construction period can be extended. For locations where the maintenance progress does not meet the standards, they can be given special attention and treatment in the next round of construction.

[0130] The embodiment of the present invention determines the construction volume of the target construction ship at various positions in the target construction area through the construction process data and construction trajectory of the target construction ship performing channel maintenance in the target construction area during the channel maintenance, so as to determine the construction situation of the target construction ship during the channel maintenance; then, according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship, the underwater terrain change at various positions in the target construction area is determined, and the influence of the channel maintenance construction on the underwater terrain can be determined according to the construction volume of the target construction ship; finally, based on the underwater terrain change, the underwater terrain data at various positions in the target construction area is determined, and the situation and changes of the underwater terrain of the target construction ship during a construction process can be obtained, so that the underwater terrain and maintenance progress of the channel during the channel maintenance can be obtained in a timely, accurate and continuous manner, and at the same time, the frequency of underwater measurement of the channel can be reduced, thereby reducing the cost of channel maintenance. Among them, by matching the tank capacity time process line, the dredging weight time process line and the construction trajectory, the construction situation at each location in the target construction area can be obtained, and then the construction volume of the target construction ship at each location can be accurately determined; through the construction volume at each location in the target construction area, the corresponding natural siltation volume and construction time, considering the direct impact of the target construction ship on the underwater topography, the natural siltation of the waterway, and the disturbance changes caused by the construction, the corresponding underwater topography change can be accurately obtained, thereby improving the accuracy of determining the underwater topography change.

[0131] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0132] The following is an embodiment of the device of the present invention. For details not described in detail therein, reference may be made to the corresponding method embodiment described above.

[0133] Figure 7 The structure diagram of the apparatus for determining underwater terrain changes in a waterway provided by an embodiment of the present invention is shown. For the sake of convenience, only the parts related to the embodiment of the present invention are shown, which are described in detail as follows:

[0134] like Figure 7 As shown, the channel underwater terrain change determination device 70 includes:

[0135] The acquisition module 71 is used to acquire the construction parameters of the target construction vessel performing waterway maintenance in the target construction area during the waterway maintenance period; wherein the construction parameters include the construction trajectory and the construction process data;

[0136] A construction quantity determination module 72, for determining the construction quantity of the target construction vessel at each position in the target construction area according to the construction process data and the construction trajectory;

[0137] The change amount determination module 73 is used to determine the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship; wherein the underwater terrain analysis model is determined according to the historical construction amount of the target construction ship and the corresponding historical underwater terrain change amount;

[0138] The terrain determination module 74 is used to determine the underwater terrain data at each location in the target construction area based on the underwater terrain change at each location.

[0139] In a possible implementation, the construction process data includes tank capacity process data and dredging weight process data;

[0140] The construction quantity determination module 72 is specifically used for:

[0141] Determine the tank capacity time process line corresponding to the tank capacity process data, and the dredging weight time process line corresponding to the dredging weight process data;

[0142] According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the first tank capacity and the first dredging amount corresponding to the target construction ship before construction at each position, and the second tank capacity and the second dredging amount corresponding to the construction after construction;

[0143] Based on the first tank capacity and the first dredging amount corresponding to the target construction ship before construction at each location, and the second tank capacity and the second dredging amount corresponding to the target construction ship after construction, the construction amount of the target construction ship at each location is determined respectively.

[0144] In a possible implementation, the construction process data includes tank capacity process data and dredging weight process data;

[0145] The construction quantity determination module 72 is specifically used for:

[0146] According to the tank capacity process data, determine the current tank capacity of the target construction ship and the tank capacity time process line corresponding to the tank capacity process data;

[0147] According to the dredging weight process data, determine the current dredging volume of the target construction ship and the dredging weight time process line corresponding to the dredging weight process data;

[0148] Based on the current tank capacity and the current dredging volume, determine the construction volume of the target construction vessel in the target construction area;

[0149] According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the tank capacity change and dredging weight change corresponding to each position;

[0150] Determine the construction ratio of each location within the target construction area based on the change in tank capacity and dredging weight corresponding to each location;

[0151] The construction volume is divided according to the construction ratio to obtain the construction volume of the target construction ship at each location.

[0152] In a possible implementation, the change amount determination module 73 is specifically used to:

[0153] Obtain the natural sedimentation volume corresponding to each location in the target construction area;

[0154] The construction volume and natural siltation volume corresponding to each location in the target construction area are input into the underwater terrain analysis model to obtain the underwater terrain change volume at each location in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation volume and corresponding historical underwater terrain change volume of the target construction ship.

[0155] In a possible implementation, the change amount determination module 73 is specifically used to:

[0156] Obtain weather data and waterway data within the target construction area;

[0157] The meteorological data and waterway data are input into a preset siltation analysis model to obtain the natural siltation amount at each location output by the siltation analysis model; wherein the siltation analysis model is trained based on the historical meteorological data, historical waterway data and corresponding historical natural siltation amount of the target construction area.

[0158] In a possible implementation, the construction quantity determination module 72 is specifically used to:

[0159] According to the expression: , respectively determine the construction volume of the target construction ship at each position;

[0160] In the formula, Indicates The construction volume at each location, Indicates Position No. The first dredging volume corresponding to the first construction, Indicates Position No. The second dredging volume after the first construction, Indicates Position No. The first tank capacity before the first construction, Indicates Position No. The second compartment capacity after the first construction is: represents the water density corresponding to the channel, represents the dry bulk density coefficient, Indicates the first Locations, Indicates the target construction ship Second to Construction location, Indicates The total number of constructions at each location.

[0161] In a possible implementation, the channel underwater topography change determination device 70 further includes a maintenance progress determination module, which is used to:

[0162] Determine the construction completion ratio of each location in the target construction area according to the construction volume at each location in the target construction area and the pre-acquired design engineering volume at each location;

[0163] Determine the maintenance progress of the target construction area based on the construction completion ratio.

[0164] In a possible implementation, the dredging weight process data includes at least one of displacement process data, draft process data and loading process data.

[0165] In a possible implementation, the terrain determination module 74 is specifically configured to:

[0166] Obtain an underwater topographic map of the target construction vessel before the construction in the target construction area;

[0167] According to the underwater topography change at each position and the water depth at the corresponding position in the underwater topographic map, the water depth at each position is determined, and the underwater topographic data at each position in the target construction area is obtained.

[0168] In a possible implementation, the change amount determination module 73 is specifically used to:

[0169] Obtain the natural sedimentation volume and construction time corresponding to each location in the target construction area;

[0170] The construction volume, natural siltation volume and construction time corresponding to each location in the target construction area are input into the underwater terrain analysis model to obtain the underwater terrain change volume at each location in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation volume, historical construction time and corresponding historical underwater terrain change volume of the target construction ship.

[0171] Figure 8 Schematic diagram of an electronic device provided by an embodiment of the present invention. Figure 8As shown, the electronic device 80 of this embodiment includes: a processor 81, a memory 82, and a computer program 83 stored in the memory 82 and executable on the processor 81. When the processor 81 executes the computer program 83, the steps in the above-mentioned methods for determining underwater terrain changes in each channel are implemented, for example Figure 2 Alternatively, when the processor 81 executes the computer program 83, the functions of each module in the above-mentioned device embodiments are realized, for example, Figure 7 The functions of the modules 71 to 74 are shown.

[0172] Exemplarily, the computer program 83 may be divided into one or more modules / units, one or more modules / units are stored in the memory 82 and executed by the processor 81 to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program 83 in the electronic device 80. For example, the computer program 83 may be divided into Figure 7 Modules 71 to 74 are shown.

[0173] The electronic device 80 may include, but is not limited to, a processor 81 and a memory 82. Those skilled in the art will appreciate that Figure 8 This is only an example of the electronic device 80 and does not constitute a limitation of the electronic device 80. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.

[0174] The processor 81 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0175] The memory 82 may be an internal storage unit of the electronic device 80, such as a hard disk or memory of the electronic device 80. The memory 82 may also be an external storage device of the electronic device 80, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 80. Further, the memory 82 may also include both an internal storage unit of the electronic device 80 and an external storage device. The memory 82 is used to store computer programs and other programs and data required by the electronic device. The memory 82 may also be used to temporarily store data that has been output or is to be output.

[0176] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0177] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0178] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0179] In the embodiments provided by the present invention, it should be understood that the disclosed devices / electronic devices and methods can be implemented in other ways. For example, the device / electronic device embodiments described above are only schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0180] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0181] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0182] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. Computer-readable media can include: any entity or device that can carry computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0183] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A method for determining underwater terrain changes in a waterway, characterized in that: include: Acquire the construction parameters of the target construction vessel performing waterway maintenance in the target construction area during the waterway maintenance period; wherein the construction parameters include construction trajectory and construction process data; Determining the construction volume of the target construction vessel at each position within the target construction area according to the construction process data and the construction trajectory; Determine the underwater terrain change at each position in the target construction area according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship; wherein the underwater terrain analysis model is determined according to the historical construction volume of the target construction ship and the corresponding historical underwater terrain change; Determining underwater terrain data at each location in the target construction area based on the underwater terrain change at each location; The construction process data includes tank capacity process data and dredging weight process data; Determining the construction volume of the target construction vessel at various locations within the target construction area according to the construction process data and the construction trajectory includes: respectively determining a tank capacity time process line corresponding to the tank capacity process data and a dredging weight time process line corresponding to the dredging weight process data; According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the first tank capacity and the first dredging amount corresponding to each time before the construction of the target construction ship at each position, and the second tank capacity and the second dredging amount corresponding to each time after the construction; Determine the construction volume of the target construction ship at each location based on the first tank capacity and the first dredging volume corresponding to each time before the target construction ship performs construction at each location, and the second tank capacity and the second dredging volume corresponding to each time after the construction; Alternatively, determining the construction volume of the target construction vessel at each position in the target construction area according to the construction process data and the construction trajectory includes: Determine the current tank capacity of the target construction vessel and the tank capacity time process line corresponding to the tank capacity process data according to the tank capacity process data; Determine the current dredging volume of the target construction vessel and the dredging weight time process line corresponding to the dredging weight process data according to the dredging weight process data; Determining the construction volume of the target construction vessel in the target construction area based on the current tank capacity and the current dredging volume; According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the tank capacity change and dredging weight change corresponding to each position; Determine the construction ratio of each location in the target construction area according to the change in tank capacity and the change in dredging weight corresponding to each location; The construction volume is divided according to the construction ratio to obtain the construction volume of the target construction ship at each position.

2. The method for determining underwater terrain changes in a waterway according to claim 1, characterized in that: Determining the underwater terrain change at each position in the target construction area according to the construction volume and the underwater terrain analysis model corresponding to the target construction ship, including: Obtain the natural sedimentation volume corresponding to each location in the target construction area; The construction volume and natural siltation volume corresponding to each position in the target construction area are input into the underwater terrain analysis model to obtain the underwater terrain change volume at each position in the target construction area output by the underwater terrain analysis model; wherein the underwater terrain analysis model is determined based on the historical construction volume, historical natural siltation volume and corresponding historical underwater terrain change volume of the target construction ship.

3. The method for determining underwater terrain changes in a waterway according to claim 2, characterized in that: Obtain the natural sedimentation volume corresponding to each location in the target construction area, including: Acquiring meteorological data and waterway data within the target construction area; The meteorological data and the waterway data are input into a preset siltation analysis model to obtain the natural siltation amount at each location output by the siltation analysis model; wherein the siltation analysis model is trained based on historical meteorological data, historical waterway data and corresponding historical natural siltation amount of the target construction area.

4. The method for determining underwater terrain changes in a waterway according to claim 1, characterized in that: Based on the first tank capacity and the first dredging amount corresponding to the target construction ship before construction at each location, and the second tank capacity and the second dredging amount corresponding to the target construction ship after construction, the construction amount of the target construction ship at each location is determined respectively, including: According to the expression: , respectively determine the construction volume of the target construction vessel at each position; In the formula, Indicates The construction volume at each location, Indicates Position No. The first dredging volume corresponding to the first construction, Indicates Position No. The second dredging volume after the first construction, Indicates Position No. The first tank capacity before the first construction, Indicates Position No. The second compartment capacity after the first construction is: represents the water density corresponding to the channel, represents the dry bulk density coefficient, Indicates the first Locations, Indicates the target construction ship Second to Construction location, Indicates The total number of constructions at each location.

5. The method for determining underwater terrain changes in a waterway according to claim 1, characterized in that: After determining the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship, the method further includes: Determine the construction completion ratio of each location in the target construction area according to the construction volume at each location in the target construction area and the pre-acquired design engineering volume at each location; Based on the construction completion ratio, the maintenance progress of the target construction area is determined.

6. A device for determining underwater terrain changes in a waterway, characterized in that: include: An acquisition module is used to acquire the construction parameters of the target construction vessel performing waterway maintenance in the target construction area during the waterway maintenance period; wherein the construction parameters include construction trajectory and construction process data; A construction quantity determination module, used to determine the construction quantity of the target construction vessel at each position in the target construction area according to the construction process data and the construction trajectory; A change amount determination module is used to determine the underwater terrain change amount at each position in the target construction area according to the construction amount and the underwater terrain analysis model corresponding to the target construction ship; wherein the underwater terrain analysis model is determined according to the historical construction amount of the target construction ship and the corresponding historical underwater terrain change amount; A terrain determination module, used to determine underwater terrain data at each position in the target construction area based on the underwater terrain change at each position; The construction process data includes tank capacity process data and dredging weight process data; The construction quantity determination module is specifically used for: respectively determining a tank capacity time process line corresponding to the tank capacity process data and a dredging weight time process line corresponding to the dredging weight process data; According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the first tank capacity and the first dredging amount corresponding to each time before the construction of the target construction ship at each position, and the second tank capacity and the second dredging amount corresponding to each time after the construction; Determine the construction volume of the target construction ship at each location based on the first tank capacity and the first dredging volume corresponding to each time before the target construction ship performs construction at each location, and the second tank capacity and the second dredging volume corresponding to each time after the construction; Alternatively, the construction quantity determination module is specifically used for: Determine the current tank capacity of the target construction vessel and the tank capacity time process line corresponding to the tank capacity process data according to the tank capacity process data; Determine the current dredging volume of the target construction vessel and the dredging weight time process line corresponding to the dredging weight process data according to the dredging weight process data; Determining the construction volume of the target construction vessel in the target construction area based on the current tank capacity and the current dredging volume; According to the time corresponding to each position of the construction trajectory in the target construction area, the tank capacity time process line and the dredging weight time process line are matched with the construction trajectory to obtain the tank capacity change and dredging weight change corresponding to each position; Determine the construction ratio of each location in the target construction area according to the change in tank capacity and the change in dredging weight corresponding to each location; The construction volume is divided according to the construction ratio to obtain the construction volume of the target construction ship at each position.

7. An electronic device comprising a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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