A vdes-based maritime service system

Abstract

The application discloses a maritime service system based on vdes, which comprises a stopping point collecting module, a ship information collecting module, a stopping planning module, a maintenance information collecting module, a data processing module and an information sending module; the stopping point collecting module is used for collecting stopping points within a preset range of the position of a ship; the ship information collecting module is used for collecting ship information; the maintenance information is used for collecting ship maintenance information; the stopping planning module is used for processing destination information and ship information to obtain stopping pushing information; the data processing module is used for processing ship maintenance information to obtain ship maintenance recommendation information; and the information sending module is used for sending the above information to a preset receiving terminal after the stopping pushing information and the ship maintenance recommendation information are generated. The application can more comprehensively and better provide maritime service and ensure the safety of ship stopping.

Description

Technical Field

[0001] This invention relates to the field of maritime services, and more specifically to a VDS-based maritime service system. Background Technology

[0002] Maritime services include any services provided within a specific sea area to promote the safety of ship traffic, improve traffic efficiency and protect the environment, ranging from providing simple intelligence information to implementing extensive traffic management in ports or waterways;

[0003] During the provision of maritime services, maritime service systems are used to provide accurate berthing guidance and other services for passing vessels.

[0004] Existing maritime service systems offer limited service types and poor service quality, failing to meet actual usage needs and impacting their usability. Therefore, this paper proposes a VDE-based maritime service system. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to solve the problem that the existing maritime service system has a single service type and poor service quality, which cannot meet the actual use needs and has a certain impact on the use of safety protection system. The invention provides a maritime service system based on VDEs.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: the present invention includes a berthing point acquisition module, a ship information acquisition module, a berthing planning module, a maintenance information acquisition module, a data processing module, and an information sending module;

[0007] The docking point acquisition module is used to collect docking points within a preset range of the ship's location; the ship information acquisition module is used to collect ship information; and the maintenance information module is used to collect ship maintenance information.

[0008] The docking planning module is used to process destination information and ship information to obtain docking push information;

[0009] The data processing module is used to process ship maintenance information to obtain ship maintenance recommendation information;

[0010] The information sending module is used to send the berthing push information and ship maintenance recommendation information to a preset receiving terminal after they are generated.

[0011] Furthermore, the specific processing procedure for the docking push information is as follows: extract the collected ship information, which includes the ship's real-time location information, the ship's estimated sailing speed information, the ship's remaining fuel amount, and the ship's fuel consumption per unit mileage.

[0012] Next, the destination information is provided, the docking point information is imported into the VDS system, the number of other ships at the docking point is obtained from the VDS system, and the number of standard parking positions at the docking point is collected.

[0013] The first parameter information is obtained by processing the real-time location information of the ship and the berthing point; the second parameter information is obtained by processing the estimated sailing speed information of the ship and the first parameter information; and the third parameter information is obtained by processing the number information of other ships and the number of standard berthing positions at the berthing point.

[0014] The initial push docking point is obtained by processing the first parameter information and the first parameter information and the third parameter information;

[0015] After obtaining the initial push stop point, collect other impact information along all initial push paths, process the other impact information to perform secondary evaluation parameters, and obtain the secondary push stop point, i.e., the push stop information;

[0016] The ratio of the ship's remaining fuel to its fuel consumption per unit mileage is calculated to obtain the driving impact parameter. The first parameter information of all docking points is extracted, and their average value is calculated to obtain the average mileage parameter. When the driving impact parameter and the average mileage parameter are greater than the preset value, the obtained secondary push path is used as the docking push information. When the driving impact parameter and the average mileage parameter are less than the preset value, the emergency push mode is entered. At this time, the location point with the minimum value of the first parameter information is selected as the push docking point, i.e., the docking push information, and it is sent directly to the preset receiving terminal.

[0017] Furthermore, the process of obtaining the first parameter information is as follows: extract the collected real-time location information of the ship and the docking point, and measure the distance between the real-time location information of the ship and the docking point, thereby obtaining the first parameter information;

[0018] The process of obtaining the second parameter information is as follows: extract the collected ship's estimated sailing speed information and the first parameter information, calculate the ratio of the first parameter information to the ship's estimated sailing speed information, and thus obtain the second parameter information;

[0019] The specific processing procedure for the third parameter information is as follows: extract the collected information on the number of other vessels and the number of standard berthing locations at the berthing point, calculate the difference between the number of standard berthing locations at the berthing point and the number of other vessels, and thus obtain the third parameter information.

[0020] Furthermore, the specific process of processing the first parameter information, the second parameter information, and the third parameter information to obtain the preliminary push docking points is as follows: Extract the first parameter information, score it to obtain the first parameter score A1, score the second parameter information to obtain the second parameter score A2, and process the third parameter information to obtain the third parameter score A3;

[0021] Assign a correction value M1 to the first parameter score A1, assign a correction value M2 to the second parameter score A2, and assign a correction value M3 to the third parameter score A3. M1 + M2 + M3 = 1, and M1 > M3 > M2;

[0022] Obtain the total push score Aa of a single docking point through the formula A1 * M1 + A2 * M2 + A3 * M3 = Aa;

[0023] After sorting all the total push scores Aa of the dockings in descending order, select the top 5 with the largest values as the preliminary push docking points.

[0024] Furthermore, the specific process of determining the specific values of the first parameter score A1, the second parameter score A2, and the third parameter score A3 is as follows: Extract the first parameter information. When the first parameter information is less than the preset value q1, the first parameter score A1 is the preset value b1. When the first parameter information is between the preset values q1 and q2, the first parameter score A1 is the preset value b2. When the first parameter information is greater than the preset value q2, the first parameter score A1 is the preset value b3, where b1 > b2 > b3 and q1 < q2;

[0025] Extract the second parameter information. When the second parameter information is less than the preset value p1, the first parameter score A1 is the preset value c1. When the first parameter information is between the preset values p1 and p2, the second parameter score A2 is the preset value c2. When the second parameter information is greater than the preset value p2, the second parameter score A2 is the preset value c3, where c1 > c2 > c3 and q1 < q2;

[0026] Extract the third parameter information. When the second parameter information is greater than the preset value h1, the third parameter score A3 is the preset value d1. When the third parameter information is between the preset values h1 and h2, the third parameter score A2 is the preset value d2. When the second parameter information is greater than the preset value h2, the third parameter score A3 is the preset value d3, where d1 > d2 > d3 and h1 < h2.

[0027] Furthermore, after obtaining the initial push docking point, the process of collecting other impact information along the initial push path, processing the other impact information to perform secondary evaluation parameters, and obtaining the secondary push docking point, i.e., the docking push information, is as follows: Extracting the collected other impact information, which is the wind direction information and water flow information of the path of the ship to the docking point. The wind direction information includes headwind, tailwind and other wind directions, and the water flow information includes downstream, upstream and other flow directions.

[0028] Extract the wind direction information of all initial docking points and score them to obtain the first score F1. When the wind direction information is headwind, F1 is the preset value e1. When the wind direction information is tailwind, F1 is the preset value e2. When the wind direction information is other wind directions, F is the preset value e3, e1 < e3 < e2.

[0029] Extract the water flow information of all initial docking points and score them to obtain the second score F2. When the water flow information is against the current, F2 is the preset value g1. When the wind direction information is with the current, F2 is the preset value g2. When the wind direction information is other flow directions, F2 is the preset value g3, e1 < e3 < e2.

[0030] The sum of the first score F1 and the second score F2 is used to obtain the score Ff for other influencing information.

[0031] Then, the three points with the highest impact information score Ff from the initial push points were selected as secondary push points.

[0032] Furthermore, the specific processing procedure for the ship maintenance recommendation information is as follows: extract the collected ship maintenance information, which includes ship maintenance history information, ship standard maintenance cycle information, and single maintenance duration information;

[0033] The ship's maintenance history information is processed to extract the difference between the last maintenance time and the current time to obtain the last maintenance interval;

[0034] The difference between the last maintenance interval and the ship's standard maintenance cycle information is then calculated to obtain the assessment difference. When the assessment difference is less than the preset value, a maintenance reminder message is generated.

[0035] When the user confirms that the maintenance prompt message needs to be displayed, the system extracts the number of ships under maintenance and the estimated waiting time for maintenance for each station within the preset range of the ship's location.

[0036] At this point, the distance information between the ship's location and the berthing point is extracted. The x berthing points with the closest distance information are selected. Then, the three berthing points with the smallest number of ships to be maintained and the three with the smallest estimated maintenance waiting time are extracted to push maintenance stations, that is, to obtain ship maintenance recommendation information.

[0037] Compared with existing technologies, this invention has the following advantages: This VDS-based maritime service system, after collecting ship location information and berthing point information based on VDS, fully considers the factors affecting the ship's journey to each berthing point, providing the ship with the optimal berthing location, accelerating the ship's arrival at shore, and setting up emergency berthing point push notifications when the ship is low on fuel, achieving better maritime services, ensuring ship navigation safety, and avoiding ship navigation accidents due to abnormal berthing point push planning. Furthermore, it fully considers the impact of the number of ships berthing at the pushed berthing points, recommending berthing points with relatively fewer berthing ships to users, facilitating ship berthing, accelerating berthing speed, and further providing better maritime services to ship users. It also provides better berthing points for ships requiring maintenance and repair, accelerating maintenance progress and preventing situations where excessive maintenance time affects ship transportation, achieving more comprehensive maritime services and providing higher quality maritime services, making this system more worthy of widespread use. Attached Figure Description

[0038] Figure 1 This is a system block diagram of the present invention. Detailed Implementation

[0039] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0040] like Figure 1 As shown, this embodiment provides a technical solution: a maritime service system based on VDS, including a berthing point acquisition module, a ship information acquisition module, a berthing planning module, a maintenance information acquisition module, a data processing module, and an information sending module;

[0041] The docking point acquisition module is used to collect docking points within a preset range of the ship's location; the ship information acquisition module is used to collect ship information; and the maintenance information module is used to collect ship maintenance information.

[0042] The docking planning module is used to process destination information and ship information to obtain docking push information;

[0043] The data processing module is used to process ship maintenance information to obtain ship maintenance recommendation information;

[0044] The information sending module is used to send the berthing push information and ship maintenance recommendation information to a preset receiving terminal after they are generated.

[0045] This invention, by collecting ship location information and berth information based on VDS, fully considers the factors affecting ships' journeys to each berth, providing optimal berthing locations for ships. This accelerates the berthing speed and includes an emergency berth push feature for ships with low fuel levels, achieving enhanced maritime services, ensuring ship navigation safety, and preventing navigational accidents caused by abnormal berth push planning. Furthermore, it fully considers the impact of the number of ships berthing at the pushed berths, recommending berths with relatively fewer ships to users, facilitating berthing and speeding up the process. This further provides better maritime services to ship users and offers better berths when ships need maintenance or repair, accelerating maintenance progress and preventing situations where excessive maintenance time affects ship transportation. This achieves a more comprehensive maritime service for ships.

[0046] The specific processing procedure for the docking push information is as follows: extract the collected ship information, which includes the ship's real-time location information, the ship's estimated sailing speed information, the ship's remaining fuel amount, and the ship's fuel consumption per unit mileage.

[0047] Next, the destination information is provided, the docking point information is imported into the VDS system, the number of other ships at the docking point is obtained from the VDS system, and the number of standard parking positions at the docking point is collected.

[0048] The first parameter information is obtained by processing the real-time location information of the ship and the berthing point; the second parameter information is obtained by processing the estimated sailing speed information of the ship and the first parameter information; and the third parameter information is obtained by processing the number information of other ships and the number of standard berthing positions at the berthing point.

[0049] The initial push docking point is obtained by processing the first parameter information and the first parameter information and the third parameter information;

[0050] After obtaining the initial push stop point, collect other impact information along all initial push paths, process the other impact information to perform secondary evaluation parameters, and obtain the secondary push stop point, i.e., the push stop information;

[0051] Through the above process, the factors affecting the arrival of ships at various berths are fully considered, thereby providing more suitable berths for ships that need temporary berths for resupply, thus providing better maritime services for ships.

[0052] The ratio of the ship's remaining fuel to the ship's fuel consumption per unit mileage is calculated to obtain the driving impact parameter. The first parameter information of all docking points is extracted, and its average value is calculated to obtain the average mileage parameter. When the driving impact parameter and the average mileage parameter are greater than the preset value, the obtained secondary push path is the docking push information. When the driving impact parameter and the average mileage parameter are less than the preset value, the emergency push mode is entered. At this time, the location point with the minimum value of the first parameter information is selected as the push docking point, i.e., the docking push information, and it is sent directly to the preset receiving terminal.

[0053] Through the above process, when a ship is running low on fuel, it can be guided to the optimal berthing point, ensuring that the ship can quickly reach the resupply berthing point and providing better maritime services for the ship.

[0054] The process of obtaining the first parameter information is as follows: extract the collected real-time position information of the ship and the docking point, and measure the distance between the real-time position information of the ship and the docking point, thereby obtaining the first parameter information;

[0055] The process of obtaining the second parameter information is as follows: extract the collected ship's estimated sailing speed information and the first parameter information, calculate the ratio of the first parameter information to the ship's estimated sailing speed information, and thus obtain the second parameter information;

[0056] The specific processing procedure for the third parameter information is as follows: extract the collected information on the number of other ships and the information on the number of standard berthing positions at the berthing point, calculate the difference between the information on the number of standard berthing positions at the berthing point and the information on the number of other ships, and thus obtain the third parameter information;

[0057] Through the above process, more accurate information on the first, second, and third parameters can be obtained, providing a data base for subsequent stop point pushes and ensuring the accuracy of stop point acquisition.

[0058] Furthermore, the specific process of processing the first parameter information, the second parameter information, and the third parameter information to obtain the initial push docking point is as follows: extract the first parameter information, score it to obtain the first parameter score A1, score the second parameter information to obtain the second parameter score A2, and process the third parameter information to obtain the third parameter score A3.

[0059] Assign a correction value M1 to the first parameter score A1, a correction value M2 to the second parameter score A2, and a correction value M3 to the third parameter score A3. M1+M2+M3=1, M1>M3>M2.

[0060] The total push score Aa for a single stop can be obtained using the formula A1*M1+A2+M2+A3*M3=Aa;

[0061] The mileage information is the most important, so the correction value of the mileage letter has the highest weight. The time information has a higher possibility of change, so its weight is lower. The third parameter is the remaining number of docking positions. Its numerical size has a relatively close relationship with the convenience of the ship, so its weight is the second;

[0062] After sorting all the total push scores Aa of the stops in descending order, select the top 5 with the largest values as the preliminary push stops.

[0063] The specific process of determining the specific values of the first parameter score A1, the second parameter score A2, and the third parameter score A3 is as follows: Extract the first parameter information. When the first parameter information is less than the preset value q1, the first parameter score A1 is the preset value b1. When the first parameter information is between the preset values q1 and q2, the first parameter score A1 is the preset value b2. When the first parameter information is greater than the preset value q2, the first parameter score A1 is the preset value b3, where b1 > b2 > b3 and q1 < q2;

[0064] Extract the second parameter information. When the second parameter information is less than the preset value p1, the first parameter score A1 is the preset value c1. When the first parameter information is between the preset values p1 and p2, the second parameter score A2 is the preset value c2. When the second parameter information is greater than the preset value p2, the second parameter score A2 is the preset value c3, where c1 > c2 > c3 and q1 < q2;

[0065] Extract the third parameter information. When the second parameter information is greater than the preset value h1, the third parameter score A3 is the preset value d1. When the third parameter information is between the preset values h1 and h2, the third parameter score A2 is the preset value d2. When the second parameter information is greater than the preset value h2, the third parameter score A3 is the preset value d3, where d1 > d2 > d3 and h1 < h2;

[0066] Through the above process, the numerical determination of the first parameter score, the second parameter score, and the third parameter score is carried out more accurately, providing data support for the final stop push.

[0067] After obtaining the preliminary push stops, collect other influencing information on all the preliminary push paths, and process the other influencing information to obtain the secondary evaluation parameters. The specific process of obtaining the secondary push stops is as follows: Extract the collected other influencing information. The other influencing information is the wind direction information and water flow information of the path of the ship sailing towards the stop. The wind direction information includes headwind, tailwind, and other wind directions. The water flow information includes downstream, upstream, and other flow directions;

[0068] Extract the wind direction information of all initial docking points and score them to obtain the first score F1. When the wind direction information is headwind, F1 is the preset value e1. When the wind direction information is tailwind, F1 is the preset value e2. When the wind direction information is other wind directions, F is the preset value e3, e1 < e3 < e2.

[0069] Extract the water flow information of all initial docking points and score them to obtain the second score F2. When the water flow information is against the current, F2 is the preset value g1. When the wind direction information is with the current, F2 is the preset value g2. When the wind direction information is other flow directions, F2 is the preset value g3, e1 < e3 < e2.

[0070] The sum of the first score F1 and the second score F2 is used to obtain the score Ff for other influencing information.

[0071] Then, the three points with the highest impact information score Ff from the initial push points are selected as secondary push points, i.e., docking push information;

[0072] Through the above process, the influence of wind direction and water flow direction on ship navigation is fully considered, thereby ensuring that the energy and time consumed by the ship when sailing to the recommended berthing point are relatively optimal.

[0073] The specific processing procedure for the ship maintenance recommendation information is as follows: extract the collected ship maintenance information, which includes ship maintenance history information, ship standard maintenance cycle information, and single maintenance duration information;

[0074] The ship's maintenance history information is processed to extract the difference between the last maintenance time and the current time to obtain the last maintenance interval;

[0075] The difference between the last maintenance interval and the ship's standard maintenance cycle information is then calculated to obtain the assessment difference. When the assessment difference is less than the preset value, a maintenance reminder message is generated.

[0076] When the user confirms that the maintenance prompt message needs to be displayed, the system extracts the number of ships under maintenance and the estimated waiting time for maintenance for each station within the preset range of the ship's location.

[0077] At this point, the distance information between the ship's location information and the docking point is extracted. The x docking points with the closest distance information are selected. Then, the three docking points with the smallest number of ships under maintenance and the three docking points with the smallest estimated maintenance waiting time are extracted to push maintenance stations, that is, to obtain ship maintenance recommendation information. x points ≥ 10.

[0078] The above process provides maintenance alerts and maintenance point push services for ships, enabling the system to provide different types of maritime services and meet the different needs of users.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A VDS-based maritime service system, characterized in that, It includes a berth point collection module, a ship information collection module, a berth planning module, a maintenance information collection module, a data processing module, and an information sending module; The docking point acquisition module is used to collect docking points within a preset range of the ship's location; the ship information acquisition module is used to collect ship information; and the maintenance information module is used to collect ship maintenance information. The docking planning module is used to process destination information and ship information to obtain docking push information; The data processing module is used to process ship maintenance information to obtain ship maintenance recommendation information; The information sending module is used to send the berthing push information and ship maintenance recommendation information to a preset receiving terminal after they are generated. The specific processing procedure for the docking push information is as follows: extract the collected ship information, which includes the ship's real-time location information, the ship's estimated sailing speed information, the ship's remaining fuel amount, and the ship's fuel consumption per unit mileage. Next, the destination information is provided, the docking point information is imported into the VDS system, the number of other ships at the docking point is obtained from the VDS system, and the number of standard parking positions at the docking point is collected. The first parameter information is obtained by processing the real-time location information of the ship and the berthing point; the second parameter information is obtained by processing the estimated sailing speed information of the ship and the first parameter information; and the third parameter information is obtained by processing the number information of other ships and the number of standard berthing positions at the berthing point. The initial push docking point is obtained by processing the first parameter information and the first parameter information and the third parameter information; After obtaining the initial push docking point, collect other impact information along the initial push path, including water flow direction and wind direction. Process the other impact information to evaluate the parameters, and obtain the secondary push docking point, i.e., the docking push information. The ratio of the ship's remaining fuel to its fuel consumption per unit mileage is calculated to obtain the driving impact parameter. The first parameter information of all docking points is extracted, and their average value is calculated to obtain the average mileage parameter. When the driving impact parameter and the average mileage parameter are greater than the preset value, the obtained secondary push path is used as the docking push information. When the driving impact parameter and the average mileage parameter are less than the preset value, the emergency push mode is entered. At this time, the location point with the minimum value of the first parameter information is selected as the push docking point, i.e., the docking push information, and it is sent directly to the preset receiving terminal.

2. The maritime service system based on VDS according to claim 1, characterized in that: The process of obtaining the first parameter information is as follows: extract the collected real-time position information of the ship and the docking point, and measure the distance between the real-time position information of the ship and the docking point, thereby obtaining the first parameter information; The process of obtaining the second parameter information is as follows: extract the collected ship's estimated sailing speed information and the first parameter information, calculate the ratio of the first parameter information to the ship's estimated sailing speed information, and thus obtain the second parameter information; The specific processing procedure for the third parameter information is as follows: extract the collected information on the number of other vessels and the number of standard berthing locations at the berthing point, calculate the difference between the number of standard berthing locations at the berthing point and the number of other vessels, and thus obtain the third parameter information.

3. A VDS-based maritime service system according to claim 2, characterized in that: The specific process of processing the first parameter information, the second parameter information and the third parameter information to obtain the initial push docking point is as follows: extract the first parameter information, score it to obtain the first parameter score A1, score the second parameter information to obtain the second parameter score A2, and process the third parameter information to obtain the third parameter score A3. Assign a correction value M1 to the first parameter score A1, a correction value M2 to the second parameter score A2, and a correction value M3 to the third parameter score A3. M1+M2+M3=1, M1>M3>M2; The total push score Aa for a single stop can be obtained using the formula A1*M1+A2*M2+A3*M3=Aa; After sorting all the total push scores Aa of all docking stations in descending order, select the top 5 stations with the highest scores as the initial push docking stations.

4. A VDS-based maritime service system according to claim 3, characterized in that: The specific numerical determination process for the first parameter score A1, the second parameter score A2, and the third parameter score A3 is as follows: Extract the first parameter information. When the first parameter information is less than the preset value q1, the first parameter score A1 is the preset value b1. When the first parameter information is between the preset values ​​q1 and q2, the first parameter score A1 is the preset value b2. When the first parameter information is greater than the preset value q2, the first parameter score A1 is the preset value b3, where b1 > b2 > b3 and q1 < q2. Extract the second parameter information. When the second parameter information is less than the preset value p1, the first parameter score A1 is the preset value c1. When the first parameter information is between the preset values ​​p1 and p2, the second parameter score A2 is the preset value c2. When the second parameter information is greater than the preset value p2, the second parameter score A2 is the preset value c3, c1>c2>c3, q1<q2; Extract the third parameter information. When the second parameter information is greater than the preset value h1, the third parameter score A3 is the preset value d1. When the third parameter information is between the preset values ​​h1 and h2, the third parameter score A2 is the preset value d2. When the second parameter information is greater than the preset value h2, the third parameter score A3 is the preset value d3. d1>d2>d3, h1<h2.

5. A VDS-based maritime service system according to claim 1, characterized in that: After obtaining the initial push docking point, the process of collecting other impact information along the initial push path, processing the other impact information to perform secondary evaluation parameters, and obtaining the secondary push docking point, i.e., the docking push information, is as follows: Extracting the collected other impact information, which is the wind direction information and water flow information of the path of the ship to the docking point. The wind direction information includes headwind, tailwind and other wind directions, and the water flow information includes downstream, upstream and other current directions. Extract the wind direction information of all initial docking points and score them to obtain the first score F1. When the wind direction information is headwind, F1 is the preset value e1. When the wind direction information is tailwind, F1 is the preset value e2. When the wind direction information is other wind directions, F is the preset value e3, e1 < e3 < e2. Extract the water flow information of all initial docking points and score them to obtain the second score F2. When the water flow information is upstream, F2 is the preset value g1. When the water flow information is downstream, F2 is the preset value g2. When the water flow information is in other directions, F2 is the preset value g3, where g1 < g3 < g2. The sum of the first score F1 and the second score F2 is used to obtain the score Ff for other influencing information. Then, the three points with the highest impact information score Ff from the initial push points were selected as secondary push points.

6. A VDS-based maritime service system according to claim 1, characterized in that: The specific processing procedure for the ship maintenance recommendation information is as follows: extract the collected ship maintenance information, which includes ship maintenance history information, ship standard maintenance cycle information, and single maintenance duration information; The ship's maintenance history information is processed to extract the difference between the time of the last maintenance and the current time to obtain the last maintenance interval; The difference between the last maintenance interval and the ship's standard maintenance cycle information is then calculated to obtain the assessment difference. When the assessment difference is less than the preset value, a maintenance reminder message is generated. When the user confirms that the maintenance prompt message needs to be displayed, the system extracts the number of ships under maintenance and the estimated waiting time for maintenance for each station within the preset range of the ship's location. At this point, the distance information between the ship's location and the berthing point is extracted. The x berthing points with the closest distance information are selected. Then, the three berthing points with the smallest number of ships under maintenance and the three with the smallest estimated maintenance waiting time are extracted to push maintenance stations, that is, to obtain ship maintenance recommendation information.

Images