Ship-shore interaction information classification and communication method and communication system

Abstract

The application relates to the technical field of ship communication, and provides a ship-shore interactive information classification method, an information communication method and a communication system. The method comprises the following steps: a classification identification part in interactive information data is recognized, and a plurality of pieces of interactive information are divided into a plurality of information communication classifications according to a preset multidimensional classification rule. The dimensions in the multidimensional classification rule comprise the following aspects: importance, urgency, whether having timeliness, whether having time sequence, whether being renewable, and data volume size. The interactive information of each information communication classification is used for being sent in different communication modes. The interactive information of at least one information communication classification is used for being sent simultaneously in a plurality of communication channels. Different communication modes are obtained by combining a 4G channel and a Beidou short message channel. The application has the advantages of low communication cost, non-blocking of communication channels, more timely transmission of key information, higher safety and the like.

Description

Technical Field

[0001] This application relates to the field of ship communication technology, and in particular to a ship-shore interactive information classification and communication method and communication system. Background Technology

[0002] With the continuous development of my country's shipping industry, the tonnage and number of inland waterway vessels are gradually increasing, and vessels are becoming more standardized and larger. Ship-to-shore communication technology, as a way to transmit information between ships and shore, is of great significance for maintaining normal communication of ships and ensuring the safety of ship navigation. Therefore, ship-to-shore communication schemes generally combine multiple communication methods.

[0003] Case 1: Chinese Patent Application No. 202011493461.9 discloses a method and device for switching between 4G and Beidou short message communication on an inland waterway vessel's intelligent terminal. The method includes the following steps: 1) acquiring the 4G signal within the navigation area of ​​the inland waterway vessel and converting the 4G signal strength into an RSRP value; 2) comparing the RSRP detected within the navigation area of ​​the inland waterway vessel with a set RSRP threshold, and displaying the value on a display screen; 3) determining whether to switch the communication mode: if the detected value is greater than or equal to the set threshold, the communication mode is not switched, and 4G communication is used normally for data transmission; if the detected value is less than the set threshold, the communication mode is switched to Beidou short message communication.

[0004] Case 2: Chinese Patent Application No. 202111590802.9 discloses a multi-mode communication method for a shipborne terminal integrating VDES, BeiDou-3, and 4G / 5G networks, including: S1, receiving interactive data transmitted by the shipborne MKD and detecting the interactive data; if a communication link specified in the user instruction is detected, execute S2; otherwise, execute S3; S2, assigning priority to the information to be sent according to the urgency and importance of the information to be sent, obtaining the priority ranking result, and sending the information through the specified link based on the priority ranking, and executing S5; S3, assigning priority to the information to be sent according to the urgency and importance of the information to be sent, and obtaining the priority ranking result; S4, selecting one of the VDES communication link, BeiDou-3 communication link, and 4G / 5G communication link to send the information based on the priority ranking result and the size of the information to be sent, and executing S5; S5, entering the next communication cycle.

[0005] 4G communication has the following advantages: higher bandwidth, larger data can be sent at once, more stable information transmission, and lower information transmission cost. However, it also has the following disadvantages: the signal is based on ground base stations, the signal is unstable, and there is no signal in some waterways; for example, there is no 4G signal in some parts of the Yangtze River and in distant ocean areas.

[0006] The BeiDou communication method has the following advantages: the BeiDou satellite communication system has a wide coverage area, no communication blind spots, and secure encrypted information transmission. User terminals are divided into command-type and communication-type user terminals. The command-type user terminal can monitor the communication data of all its subordinate user terminals and can send commands or conduct data communication with any of its subordinate user terminals. The terminal transmission power can be reduced to below 3W, and the short message communication success rate is also very high. According to assessments, the regional short message communication success rate is better than 99.6%, and the global short message communication success rate is better than 96.46%. However, it also has the following disadvantages: the information transmission cost is relatively high, and the bandwidth is relatively low. Currently, the maximum length of a single short message in the BeiDou-3 regional short message communication service is 14,000 bits, approximately equivalent to 1,000 Chinese characters. The global short message communication service utilizes 14 MEO satellites to achieve global coverage, with a maximum length of 560 bits per short message, approximately equivalent to 40... Because of the limited number of Chinese characters, BeiDou communication cannot send large amounts of data. Moreover, for civilian use, BeiDou communication has strict limitations on communication frequency, with intervals generally on the order of minutes.

[0007] Regarding the aforementioned related technologies, the inventors believe that the following defects exist: Existing technical solutions are more theoretical and based on assumptions. In actual projects, the amount and types of information exchanged between ships and shore are large. Without reasonable and detailed classification of this massive amount of data, conventional technical solutions like those mentioned above are difficult to apply in actual production. For example, in Case 1, using the strength of the 4G signal as the basis for whether to switch between 4G and BeiDou communication will result in a large amount of important information not being sent in a timely manner, and will also cause large amounts of data to block important BeiDou communication channels. For example, in Case 2, because no standard for prioritizing information was provided, the massive amount of interactive information could not be clearly classified. Therefore, the system needed to check each piece of interactive information data one by one. The excessive data processing demand could easily cause the system to crash suddenly. At the same time, even if reasonable priority information could be detected and arranged, due to the signal blind spots of 4G communication and the low bandwidth and low frequency of Beidou communication, a lot of important information could not be sent in time, which would lead to the blockage of important Beidou communication channels by large amounts of information. In summary, conventional ship-to-shore communication solutions suffer from a series of problems, including unclear information classification, high communication costs, easy congestion of communication channels, untimely transmission of critical information, and difficulty in ensuring security. Summary of the Invention

[0008] This application provides a ship-to-shore information classification and communication method and communication system to improve the following technical problems: unclear information classification, high communication cost, easy blockage of communication channels, insufficient timeliness of key information transmission, and difficulty in ensuring security.

[0009] Firstly, this application provides a method for classifying ship-shore interaction information, employing the following technical solution: A method for classifying ship-to-shore interaction information includes the following steps: Step 1: Obtain the interaction information between the shipborne terminal and the shore-based terminal. The interaction information includes the information sent and received between the shipborne terminal and the shore-based terminal. Each piece of interaction information includes a classification identification unit. Each classification identification unit corresponds to an information item category. One or more classification identification units correspond to an information communication category. Step 2: By identifying the classification recognition unit in the interactive information data, the multiple interactive information items are divided into various information item categories, and the information item categories are used to characterize the type to which the interactive information belongs; Step 3: By identifying the classification recognition unit in the interactive information data and according to the preset multi-dimensional classification rules, the multiple interactive information items are divided into multiple information communication categories. The dimensions in the multi-dimensional classification rules include: importance, urgency, timeliness, chronological order, reproducibility, and data size. The interactive information of each information communication category is sent using different communication methods, and at least one type of interactive information is sent simultaneously using multiple communication channels.

[0010] The beneficial technical effects of the above-mentioned technical solution are as follows: Since the interactive information between the shipboard and shore-based terminals comes from a wide range of sources and is diverse in type, and the data volume of the information also varies, when the information is input into the shipboard and shore-based interactive systems, each type of information can be "labeled" beforehand. That is, "according to a preset item extraction strategy, the information item category is determined from the interactive information, and the information item category is used to characterize the type of interactive information." Then, each piece of interactive information is considered from multiple dimensions: importance, urgency, timeliness, sequentiality, reproducibility, and data volume, dividing multiple types of interactive information into multiple categories. This allows for the use of corresponding communication methods to send the same type of interactive information subsequently. Moreover, based on the principle of "safety first," at least one type of interactive information is used to send simultaneously through multiple communication channels, making every effort to ensure the safety of life and property. In summary, this application can reasonably, meticulously, and systematically classify the interactive information between the ship and shore, so that different communication methods can be used to send each type of information subsequently. It has advantages such as low communication cost, less likelihood of communication channel congestion, more timely transmission of key information, and higher security.

[0011] In one feasible technical solution of this application, the classification and identification unit is provided with thirteen types, and the thirteen types of classification and identification units respectively correspond to the following thirteen information item categories: Safety alarm information refers to all information related to the life and property safety of the ship and its crew collected by the shipborne terminal system's hardware and software. A distress signal refers to any message sent manually that concerns the life and property safety of a ship and its crew. Command information refers to the operation command data sent from the shore-based terminal to the shipborne terminal. The operation commands include: navigation commands and stop commands. Positioning information refers to real-time positioning information during the ship's operation. The real-time positioning information includes longitude data, latitude data, speed data, heading data, and time data. The positioning information is used for shore-based monitoring of the ship's dynamics or for querying and analyzing the ship's trajectory. Emergency business process information refers to business approval information with a high degree of urgency that is exchanged between the shipborne terminal and the shore-based terminal. Routine business process information refers to business approval information with low urgency that is exchanged between the shipborne and shore-based terminals. Operating condition alarm information refers to dynamic data generated by a vessel during operation that exceeds a preset alarm threshold. The dynamic data includes: fuel level data, engine speed data, engine temperature data, communication and navigation equipment data, cargo load data, steering gear equipment information data, and power system information data. The first operating condition routine information refers to the dynamic data generated by the vessel during operation that does not exceed the preset alarm threshold. The dynamic data includes: fuel quantity information data, engine speed data, engine temperature data, communication and navigation equipment data, and cargo load data. The second operating condition routine information refers to the dynamic data generated by the vessel during operation that does not exceed the preset alarm threshold. The dynamic data includes: steering gear equipment information data and power system information data. Regular monitoring information refers to normal data obtained from monitoring the operating status of the shipborne terminal system's hardware and software. Monitoring and alarm information refers to abnormal data obtained from monitoring the operating status of the shipborne terminal system's hardware and software. Document information refers to electronic document data exchanged between the shipboard and shore-based terminals; and, Real-time audio and video communication information refers to the real-time audio and video data exchanged between the shipboard terminal and the shore-based terminal.

[0012] The beneficial technical effects of the above technical solution are as follows: Dividing ship-to-shore interaction information into the above thirteen types can almost cover all possible ship-to-shore interaction information under current technological conditions. This allows for more reasonable classification of these thirteen types of information based on dimensions such as "importance, urgency, timeliness, sequence, renewability, and data volume." In particular, classifying shipborne system hardware and software monitoring information into "alarm" and "routine" categories, and classifying operational information into "alarm," "first," and "second" categories, avoids the problem of mixing all shipborne system hardware and software monitoring and operational information into one type. The classification is very detailed, clear, and sufficiently comprehensive and systematic, which is more conducive to the accurate, efficient, and low-cost transmission of interaction information.

[0013] In one achievable technical solution of this application, the information communication classification includes: The first category of information refers to information concerning the life and property safety of the vessel or its crew, and includes at least: safety warning information, distress information, and instruction information; The second category of information refers to information that is of high importance and urgency, and includes at least: urgent business process information; The third category of information refers to information that is of high importance, can be sent at low frequency through the Beidou short message channel when the 4G channel is blocked, and has timeliness, and includes at least: location information, working condition alarm information and monitoring alarm information. The fourth category of information refers to information that is of high importance but low urgency, and includes at least: routine business process information and routine information for the first working condition; The fifth category of information refers to information with a relatively large data volume, or information with low importance or urgency but with timeliness, and includes at least: routine information of the second working condition, routine monitoring information, file information, and real-time audio and video communication information.

[0014] The beneficial technical effects of the above technical solution are as follows: It fully considers the importance, urgency, timeliness, sequentiality, reproducibility, and data size of each type of information, and also takes into account whether the information can be smoothly transmitted through the Beidou communication channel. The thirteen types of interactive information between ships and shore are divided into the above five categories. This classification method, which uses the communication method as a reference condition, is more reasonable and clear, and is more conducive to the accurate, efficient, and low-cost transmission of interactive information.

[0015] Secondly, this application provides an information communication method, which adopts the following technical solution: An information communication method, based on the above-mentioned ship-to-shore interactive information classification method, is applied between a ship-borne terminal and a shore-based terminal, wherein the ship-borne terminal and the shore-based terminal are the sender and receiver to each other, and different communication methods are obtained by combining 4G channels and Beidou short message channels.

[0016] In one achievable technical solution of this application, the communication method includes: The first communication method uses both the 4G channel and the BeiDou short message channel to send information simultaneously. If the 4G channel fails to send information, the 4G channel will be used to send information again immediately. If the BeiDou short message channel fails to send information, the BeiDou short message channel will be used to send information again immediately until the information is sent successfully at least once. The second communication method prioritizes sending information via the 4G channel. If the 4G channel fails to send information, it immediately switches to the BeiDou short message channel to send information until the information is successfully or unsuccessfully sent. The third communication method prioritizes sending time-sensitive information once every time t1 using the 4G channel within the T1 time period, where T1 is N times t1 and N is a natural number greater than 1. Whenever the 4G channel fails to send information, the data of the information to be sent is directly discarded. If no information is successfully sent within the T1 time period, new information data is immediately sent through the Beidou short message channel. The fourth communication method prioritizes sending information via the 4G channel. If the 4G channel fails to send information, the information data is buffered. Once the 4G channel is restored, the information is sent via the 4G channel again until the information is successfully sent. The fifth communication method prioritizes sending information via the 4G channel. If information transmission via the 4G channel fails, the information data is discarded.

[0017] In one feasible technical solution of this application, the first type of information is sent using a first communication method, the second type of information is sent using a second communication method, the third type of information is sent using a third communication method, the fourth type of information is sent using a fourth communication method, and the fifth type of information is sent using a fifth communication method.

[0018] The beneficial technical effects of the above technical solution are as follows: It specifies five communication methods, all of which can be obtained by combining 4G channels and BeiDou short message channels. The first communication method can be used to send information concerning the safety of ships or crew members' lives and property; the second communication method can be used to send information of high importance and urgency but not concerning the safety of ships or crew members' lives and property; the third communication method can be used to send information of high importance that can be sent at low frequency via the BeiDou short message channel when the 4G channel is blocked, and is time-sensitive; the fourth communication method can be used to send information of high importance but low urgency; and the fifth communication method can be used to send information with a large data volume, or information of low importance and low urgency but is time-sensitive. In general, the five types of interactive information can be perfectly matched with the five communication methods. The entire matching scheme can achieve the goals of low communication cost, less congestion of communication channels, more timely transmission of key information, and higher security.

[0019] In one feasible technical solution of this application, when more than one message needs to be sent in the BeiDou short message channel within the same time period, resulting in multiple messages being delayed and unable to be sent in time through the BeiDou short message channel, the multiple delayed messages form a BeiDou pending message pool. The messages in the BeiDou pending message pool include at least two of the following information communication categories: first type of information, second type of information, and third type of information. Regardless of the order in which the messages in the BeiDou pending message pool were added, they are sent in queue according to the following rules: the first type of information is sent before the second type of information and the third type of information, and the second type of information is sent before the third type of information.

[0020] The beneficial technical effects of the above technical solution are as follows: Since the BeiDou short message channel can only send a maximum of 1,000 bytes of messages at a time, and there are restrictions on the frequency of civilian communication, it is very likely that multiple messages will be waiting to be sent within the same time period. Since only the first, second, and third types of information can be sent through the BeiDou short message channel, it is more reasonable to send the delayed information according to the following priority based on the degree of urgency and importance: send the first type of information first, then the second type of information, and finally the third type of information. This rule of sending messages in order is safer.

[0021] In one feasible technical solution of this application, within a time T2 after the distance information is sent from the sender, the receiver sends a communication receipt to the sender, and the communication receipt is used to confirm whether the information has been received.

[0022] The beneficial technical effects of the above technical solution are as follows: communication receipts can help the sender confirm whether important messages have been delivered, which is conducive to comprehensively improving security and communication effectiveness.

[0023] Thirdly, this application provides a communication system, which adopts the following technical solution: A communication system, based on the above-mentioned information communication method, includes: a shore-based communication control module and a shipborne communication control module; The shore-based communication control module is used to switch the communication channel for sending information from the shore-based end to the shipborne end. The shore-based communication control module is electrically connected to the shore-based 4G communication module and wirelessly connected to the Beidou communication platform. The shore-based 4G module is electrically connected to the first 4G antenna. The shipborne communication control module is used to switch the communication channel for sending information from the shipborne terminal to the shore-based terminal. The shipborne communication control module is electrically connected to a shipborne 4G communication module and a Beidou communication module. The shipborne 4G communication module is electrically connected to a second 4G antenna, and the Beidou communication module is electrically connected to a Beidou antenna. The BeiDou communication module and the BeiDou communication platform are connected via BeiDou satellite communication, and the shore-based 4G communication module and the shipborne 4G communication module are connected via wireless network communication.

[0024] In one feasible technical solution of this application, a cloud server and an edge computing server are also included. The shore-based communication control module, the shore-based 4G communication module and the shore-based business system are loaded on the cloud server, and the shipborne communication control module, the shipborne 4G communication module, the Beidou communication module and the shipborne business system are loaded on the edge computing server.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The ship-to-shore information classification method of this application considers each piece of interactive information from multiple dimensions: importance, urgency, timeliness, sequentiality, reproducibility, and data size. It categorizes various types of interactive information into multiple classes, allowing for the use of corresponding communication methods for subsequent transmission of the same type of information. Furthermore, based on the principle of "safety first," at least one type of interactive information is transmitted simultaneously through multiple communication channels, maximizing the protection of life and property. In summary, this application can reasonably, meticulously, and systematically classify ship-to-shore interactive information, enabling the use of different communication methods for each type of information. It offers advantages such as low communication costs, reduced communication channel congestion, more timely transmission of critical information, and higher security. 2. The information communication method of this application continues to use the 4G channel and Beidou short message channel commonly used in ship-to-shore communication. Without adding new communication channels, it combines various communication schemes to match the interactive information after precise classification. It has the advantages of low communication cost, less communication channel blockage, more timely transmission of key information, and higher security. 3. The communication system of this application can switch the message transmission channel on a ship via a shipborne communication control module. That is, according to the classified information, it controls whether the shipborne 4G communication module or the Beidou communication module is activated according to the corresponding communication mode. It can also switch the message transmission channel on shore via a shore-based communication control module. That is, according to the classified information, it controls whether the shore-based 4G communication module is activated or connected to the Beidou communication platform according to the corresponding communication mode. It has the advantages of low communication cost, less prone to communication channel blockage, more timely transmission of key information, and higher security. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a flowchart illustrating the ship-shore interaction information classification method according to an embodiment of this application.

[0028] Figure 2 This is a classification table of ship-shore interaction information in the embodiments of this application.

[0029] Figure 3 A schematic diagram of the communication system according to an embodiment of this application.

[0030] Figure 4This is a schematic diagram of the sending process of the first type of information in the embodiments of this application.

[0031] Figure 5 This is a schematic diagram of the sending process of the second type of information in the embodiments of this application.

[0032] Figure 6 This is a schematic diagram of the sending process of the third type of information in the embodiments of this application.

[0033] Figure 7 This is a schematic diagram of the sending process of the fourth type of information in the embodiments of this application.

[0034] Figure 8 This is a schematic diagram of the sending process of the fifth type of information in the embodiments of this application.

[0035] Explanation of reference numerals in the attached figures: 100. Cloud server; 11. Shore-based business system; 12. Shore-based communication control module; 13. Shore-based 4G communication module; 200. Edge computing server; 21. Shipborne business system; 22. Shipborne communication control module; 23. Shipborne 4G communication module; 24. Shipborne Beidou communication module; 300, First 4G Antenna; 400, Second 4G Antenna; 500, Beidou antenna; 600. Beidou communication platform; 700, Beidou satellite. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] 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 one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0041] This application discloses a method for classifying ship-to-shore interaction information. (Refer to...) Figure 1 and Figure 2 A method for classifying ship-shore interaction information includes the following steps: Step 1: Obtain the interaction information between the shipborne terminal and the shore-based terminal. The interaction information includes the information sent and received between the shipborne terminal and the shore-based terminal. Each piece of interaction information includes a classification and identification unit. Each classification and identification unit corresponds to a type of information item. One or more classification and identification units correspond to a type of information communication classification. Step 2: By identifying the classification recognition part in the interactive information data, multiple interactive information messages are divided into various information item categories. The information item category is used to represent the type of interactive information. Step 3: By identifying the classification unit in the interactive information data and according to the preset multi-dimensional classification rules, the multiple interactive information is divided into multiple information communication categories. The dimensions in the multi-dimensional classification rules include: importance, urgency, timeliness, chronological order, reproducibility, and data size. Interactive information of each information communication category is sent using different communication methods, and at least one type of interactive information is sent simultaneously using multiple communication channels.

[0042] Based on current communication technologies, when the data of the interactive information contains a classification and recognition unit (such as a string number with a certain degree of recognition), a recognition module can be added to the computer system to perform the above-mentioned recognition action, or a classification module can be added to perform the above-mentioned classification action. The above-mentioned conventional technologies will not be described in detail in this application.

[0043] In one feasible technical solution of this application, the classification and identification unit is provided with thirteen types, which correspond to the following thirteen information item categories: Safety alarm information refers to all information related to the life and property safety of the ship and its crew collected by the shipborne terminal system software and hardware. For example, the classification and identification part corresponding to safety alarm information can be the character "SA". Specifically, safety alarm information can be "SA-Power system stopped working" or "SA-Ship rapidly leaking oil". A distress message refers to any information sent manually that concerns the life and property safety of a vessel and its crew. For example, the classification and identification part corresponding to a distress message can be the character "HP". Specifically, a distress message can be a string of text messages sent manually: "HP - Vessel is leaking water, expected to sink in 1 hour, requesting rescue", etc. Command information refers to the operational command data sent from the shore-based terminal to the shipborne terminal. For example, the classification and identification part corresponding to the command information can be the character "ZL". Specifically, the operational command can be: ZL-navigation command, ZL-stop command. Positioning information refers to the real-time positioning information of the ship during its operation. Real-time positioning information includes longitude data, latitude data, speed data, heading data, and time data. For example, the corresponding classification identifier for positioning information could be the characters "DW". Specifically, the positioning information could be: "DW -course: "130.26". time: 1666397436457, latitude: "31.06755", longitude: "122.59762", speed: "10.6"", where course is the heading, due north is 0 degrees, and the angle in the clockwise direction is, for example, due east is 90 degrees, due south is 180 degrees, due west is 270 degrees, speed is the speed in knots, latitude is the latitude, longitude is the longitude, and time is the timestamp; Location information is used for shore-based monitoring of vessel dynamics. This type of data is important, but it allows for reduced transmission frequency, such as once every 30 seconds under normal circumstances. If data is not obtained for several transmission cycles, it is not a big problem. However, data cannot be unobtained for a long time. For example, data should be transmitted at least once every 15 minutes. Alternatively, location information can be used to query and analyze vessel trajectories. This type of data is important, but it is not urgent. Furthermore, this type of data can be thinned out. For example, the transmission interval can be appropriately lengthened, such as once every 5 minutes. If the vessel is stationary, the transmission interval can be even longer, such as 30 minutes. Emergency business process information refers to business approval information with a high degree of urgency that is exchanged between the shipboard end and the shore-based end. For example, the classification identification part corresponding to emergency business process information can be the character "YH". Specifically, emergency business process information can be: "YH - During the ship's navigation process, it needs to send dynamic reports to the shore-based end at regular intervals", etc. Routine business process information refers to business approval information with low urgency that is exchanged between the shipboard end and the shore-based end. For example, the classification identification part corresponding to routine business process information can be the character "YL". Specifically, routine business process information can be: "YL-Crew Training Management", "YL-Crew Assessment Management", etc. Operating condition alarm information refers to dynamic data generated by the vessel during operation that exceeds the preset alarm threshold. Dynamic data includes: fuel level information, engine speed data, engine temperature data, communication and navigation equipment data, cargo load data, steering gear equipment information data, and electrical system information data. For example, the classification and identification part corresponding to the operating condition alarm information can be the character "GKA". Specifically, the operating condition alarm information can be: "GKA-20220315120000 Fuel tank level is less than 2 tons, estimated sailing time is 4 hours, please refuel in time", "GKA-20220315120000 Current engine speed is abnormal, instantaneous speed reaches 1000 rpm, please check in time", etc., where 20220315120000 is the timestamp of the current information, and the 14 digits represent year, month, day, hour, minute, and second respectively. The first operating condition routine information refers to the dynamic data generated by the vessel during operation that does not exceed the preset alarm threshold. Dynamic data includes: fuel level information, engine speed data, engine temperature data, communication and navigation equipment data, and cargo load data. For example, the classification identification part corresponding to the first operating condition routine information can be the character "GKNO". Specifically, the first operating condition routine information can be: "GKNO-20220315120000 Fuel tank capacity is approximately 40 tons, estimated to be able to sail for 5 days", "GKNO-20220315120000 Instantaneous engine speed is 700 rpm", etc., where 20220315120000 is the timestamp of the current information, and the 14 digits represent the year, month, day, hour, minute, and second respectively. The second operating condition routine information refers to the dynamic data generated by the vessel during operation that does not exceed the preset alarm threshold. The dynamic data includes: steering gear equipment information data and power system information data. For example, the classification identification part corresponding to the second operating condition routine information can be the character "GKNT". Specifically, the second operating condition routine information can be: "GKNT-20220315120000 Steering gear equipment system normal, power system normal", etc., where 20220315120000 is the timestamp of the current information, and the 14 digits represent the year, month, day, hour, minute, and second respectively. Regular monitoring information refers to normal data obtained from monitoring the operating status of the shipborne terminal system's hardware and software. For example, the classification and identification part corresponding to regular monitoring information can be the character "MNT". Specifically, regular monitoring information can be: "MNT-20220315120000 Industrial control computer CPU utilization: 30%, memory utilization: 50%, data disk utilization: 20%, system disk utilization: 70%, shipborne service: healthy, communication service: healthy", where 20220315120000 is the timestamp of the current information, and the 14 digits represent the year, month, day, hour, minute, and second respectively. Monitoring alarm information refers to abnormal data obtained from monitoring the operating status of the shipborne terminal system's hardware and software. For example, the classification and identification part corresponding to the monitoring alarm information can be the character "NTA". Specifically, the monitoring alarm information can be: "NTA-20220315120000 The industrial control computer data disk usage rate has exceeded 90%. Please process the data in time." Here, 20220315120000 is the timestamp of the current information, and the 14 digits represent the year, month, day, hour, minute, and second. File information refers to electronic file data exchanged between the shipboard and shore-based terminals. For example, the classification and identification section corresponding to file information can be the character "FILE". Specifically, file information can be: "FILE - word, excel, image, audio, video file", "FILE - word file", "FILE - excel file", "FILE - image file", "FILE - audio file", "FILE - video file", etc.; and, Real-time audio and video communication information refers to the real-time audio and video data exchanged between the shipboard and shore-based terminals. For example, the classification and identification unit corresponding to real-time audio and video communication information can be the character "MV". Specifically, real-time audio and video communication information can be: "MV - Voice call request initiated between ship and shore", "MV - Video call request initiated between ship and shore", etc.

[0044] The beneficial technical effects of the above technical solution are as follows: Dividing ship-to-shore interaction information into the above thirteen types can almost cover all possible ship-to-shore interaction information under current technological conditions. This allows for more reasonable classification of these thirteen types of information based on dimensions such as "importance, urgency, timeliness, sequence, renewability, and data volume." In particular, classifying shipborne system hardware and software monitoring information into "alarm" and "routine" categories, and classifying operational information into "alarm," "first," and "second" categories, avoids the problem of mixing all shipborne system hardware and software monitoring and operational information into one type. The classification is very detailed, clear, and sufficiently comprehensive and systematic, which is more conducive to the accurate, efficient, and low-cost transmission of interaction information.

[0045] In one achievable technical solution of this application, the information communication category includes: The first category of information refers to information concerning the life and property safety of the vessel or its crew, and includes at least: safety warning information, distress information, and instruction information; The second category of information refers to information that is of high importance and urgency, and includes at least: urgent business process information; The third category of information refers to information that is of high importance, can be sent at low frequency through the Beidou short message channel when the 4G channel is blocked, and has timeliness, and includes at least: location information, working condition alarm information and monitoring alarm information. The fourth category of information refers to information that is of high importance but low urgency, and includes at least: routine business process information and routine information for the first working condition; The fifth category of information refers to information with a relatively large data volume, or information with low importance or urgency but with timeliness, and includes at least: routine information of the second working condition, routine monitoring information, file information, and real-time audio and video communication information.

[0046] The beneficial technical effects of the above technical solution are as follows: It fully considers the importance, urgency, timeliness, sequentiality, reproducibility, and data size of each type of information, and also takes into account whether the information can be smoothly transmitted through the Beidou communication channel. The thirteen types of interactive information between ships and shore are divided into the above five categories. This classification method, which uses the communication method as a reference condition, is more reasonable and clear, and is more conducive to the accurate, efficient, and low-cost transmission of interactive information.

[0047] The beneficial technical effects of the ship-shore interaction information classification method in this application are as follows: Because the interactive information between shipboard and shore-based systems comes from a wide range of sources, is diverse in type, and varies in data volume, each type of information can be "labeled" before being input into the shipboard and shore-based interactive systems. This involves "determining the information category from the interactive information according to a preset extraction strategy; the information category represents the type of interactive information." The ship-shore interactive information classification method of this application considers each piece of interactive information from multiple dimensions: importance, urgency, timeliness, chronological order, reproducibility, and data volume. This classifies various types of interactive information into multiple categories, allowing for the use of corresponding communication methods for the same type of interactive information. Furthermore, based on the principle of "safety first," at least one type of interactive information is sent simultaneously through multiple communication channels to maximize the protection of life and property. In summary, this application can reasonably, meticulously, and systematically classify ship-shore interactive information, enabling the use of different communication methods for each type of information. This method offers advantages such as low communication costs, reduced communication channel congestion, more timely delivery of critical information, and higher security.

[0048] This application also discloses an information communication method. (Refer to...) Figures 3 to 7 An information communication method is proposed, based on the aforementioned ship-to-shore interactive information classification method. The information communication method is applied between the ship-borne end and the shore-based end, with the ship-borne end and the shore-based end acting as the sender and receiver to each other. Different communication methods are obtained by combining 4G channels and Beidou short message channels.

[0049] In one feasible technical solution of this application, the communication method includes: The first communication method uses both the 4G channel and the BeiDou short message channel to send information simultaneously. If the 4G channel fails to send information, the 4G channel will be used to send information again immediately. If the BeiDou short message channel fails to send information, the BeiDou short message channel will be used to send information again immediately until the information is sent successfully at least once. The second communication method prioritizes sending information via the 4G channel. If the 4G channel fails to send information, it immediately switches to the BeiDou short message channel to send information until the information is successfully or unsuccessfully sent. The third communication method prioritizes sending time-sensitive information once every time t1 using the 4G channel within the T1 time period, where T1 is N times t1 and N is a natural number greater than 1. Whenever the 4G channel fails to send information, the data of the information to be sent is directly discarded. If no information is successfully sent within the T1 time period, new information data is immediately sent through the Beidou short message channel. The fourth communication method prioritizes sending information via the 4G channel. If the 4G channel fails to send information, the information data is buffered. Once the 4G channel is restored, the information is sent via the 4G channel again until the information is successfully sent. The fifth communication method prioritizes sending information via the 4G channel. If information transmission via the 4G channel fails, the information data is discarded.

[0050] In one feasible technical solution of this application, the first type of information is sent using a first communication method, the second type of information is sent using a second communication method, the third type of information is sent using a third communication method, the fourth type of information is sent using a fourth communication method, and the fifth type of information is sent using a fifth communication method.

[0051] The beneficial technical effects of the above technical solution are as follows: The system specifies five communication methods, all of which can be combined using 4G and BeiDou short message channels. The first method can be used to send information concerning the safety of ships or crew members' lives and property. The second method can be used to send information of high importance and urgency but not necessarily related to the safety of ships or crew members' lives and property. The third method can be used to send information of high importance that can be sent infrequently via the BeiDou short message channel when 4G channels are blocked, and is time-sensitive. The fourth method can be used to send information of high importance but low urgency. The fifth method can be used to send information with large data volumes, or information of low importance and low urgency but is time-sensitive. In summary, the five types of interactive information can be perfectly matched with the five communication methods. The entire matching scheme achieves the goals of low communication costs, less congestion of communication channels, more timely delivery of critical information, and higher security.

[0052] In one feasible technical solution of this application, when more than one message needs to be sent in the BeiDou short message channel within the same time period, resulting in multiple messages being delayed and unable to be sent in time through the BeiDou short message channel, the multiple delayed messages form a BeiDou pending message pool. The messages in the BeiDou pending message pool include at least two of the following information communication categories: Category I messages, Category II messages, and Category III messages. Regardless of the order in which the messages in the BeiDou pending message pool were added, they are sent in queue according to the following rules: Category I messages are sent before Category II and Category III messages, and Category II messages are sent before Category III messages.

[0053] The beneficial technical effects of the above technical solution are as follows: Since the BeiDou short message channel can only send a maximum of 1,000 bytes of messages at a time, and there are restrictions on the frequency of civilian communication, it is very likely that multiple messages will be waiting to be sent within the same time period. Since only the first, second, and third types of information can be sent through the BeiDou short message channel, it is more reasonable to send the delayed information according to the following priority based on the degree of urgency and importance: send the first type of information first, then the second type of information, and finally the third type of information. This rule of sending messages in order is safer.

[0054] In one feasible technical solution of this application, within time T2 after the distance information is sent from the sender, the receiver sends a communication receipt to the sender, which is used to confirm whether the information has been received.

[0055] The beneficial technical effects of the above technical solution are as follows: communication receipts can help the sender confirm whether important messages have been delivered, which is conducive to comprehensively improving security and communication effectiveness.

[0056] The beneficial technical effects of the information communication method in this application are as follows: By continuing to use the 4G channel and Beidou short message channel commonly used in ship-to-shore communication, without adding new communication channels, a variety of different communication schemes can be obtained to match the interactive information after precise classification. This has the advantages of low communication cost, less susceptibility to communication channel blockage, more timely transmission of key information, and higher security.

[0057] This application also discloses a communication system. (Refer to...) Figures 3 to 8 A communication system, based on the above-mentioned information communication method, includes: a shore-based communication control module 12 and a shipborne communication control module 22; The shore-based communication control module 12 is used to switch the communication channel for sending information from the shore-based end to the shipborne end. The shore-based communication control module 12 is telecom connected to the shore-based 4G communication module 13 and wirelessly connected to the Beidou communication platform 600. The shore-based 4G communication module 13 is telecom connected to the first 4G antenna 300. The shipborne communication control module 22 is used to switch the communication channel for sending information from the shipborne end to the shore-based end. The shipborne communication control module 22 is telecom connected to the shipborne 4G communication module 23 and the Beidou communication module. The shipborne 4G communication module 23 is telecom connected to the second 4G antenna 400, and the Beidou communication module is telecom connected to the Beidou antenna 500. The Beidou communication module is specifically the Beidou-3 short message communication module. Among them, the Beidou communication module and the Beidou communication platform 600 are connected via Beidou satellite 700 communication, and the shore-based 4G communication module 13 and the shipborne 4G communication module 23 are connected via wireless network communication.

[0058] In one feasible technical solution of this application, a cloud server 100 and an edge computing server 200 are also included. The shore-based communication control module 12, the shore-based 4G communication module 13 and the shore-based business system 11 are loaded on the cloud server 100, and the shipborne communication control module 22, the shipborne 4G communication module 23, the Beidou communication module and the shipborne business system 21 are loaded on the edge computing server 200.

[0059] The beneficial technical effects of the above technical solution are as follows: Under normal circumstances, the shore-based terminal has the advantage of stable signal, so the use of cloud server 100 will not have the problem of poor signal. Moreover, the cloud virtualization design of cloud server 100 can meet the advantages of shore-based connection to multiple ship-borne terminals, and facilitate centralized management and monitoring of the dynamics of multiple ships. During long voyages, the shipborne terminal faces the objective factor of unstable signal. Therefore, using the edge computing server 200 on the shipborne terminal can better adapt to the problem of fluctuating signal strength. Moreover, the shipborne localized processing of the edge computing server 200 is convenient and conducive to subsequent expansion and development on the shipborne terminal. It is also convenient to integrate other functional modules that are not yet available, and has stronger scalability, practicality and adaptability.

[0060] Please refer to Figure 4 The following is an example of the sending process for the first type of information: Start the process - the shipborne business system 21 generates a message that needs to be sent to the shore-based system - the shipborne business system 21 sends the message to the communication control module - the communication control module simultaneously sends the message to the 4G communication module and the Beidou communication module respectively - the 4G communication module sends the message and the Beidou communication module sends the message - when no message is successfully sent through either channel, the message continues to be sent repeatedly through the original channel until at least one channel successfully sends the message - end the process.

[0061] Please refer to Figure 5 The following is an example of the sending process for the second type of information: Start the process - The shipborne business system 21 generates a message that needs to be sent to the shore-based system - The shipborne business system 21 sends the message to the communication control module - The communication control module prioritizes sending the message to the 4G communication module - When the 4G communication module fails to send the message, the communication control module immediately sends the message to the Beidou communication module, i.e., switches the message sending channel - The Beidou communication module sends the message - Regardless of whether the message is successfully sent, the process ends.

[0062] Please refer to Figure 6The following is an example of the sending process for the third type of information: Start the process - Shipborne business system 21 generates a message that needs to be sent to the shore-based system - Shipborne business system 21 sends the message to the communication control module - The communication control module prioritizes sending the message to the 4G communication module - When the 4G communication module fails to send the message successfully for a long time (i.e., T1), the communication control module sends the message to the Beidou communication module, i.e., switches the message sending channel - The Beidou communication module sends the message - Regardless of whether the message is successfully sent, the process ends.

[0063] Please refer to Figure 7 The following is an example of the sending process for the fourth type of information: Start the process - the shipborne business system 21 generates a message that needs to be sent to the shore - the shipborne business system 21 sends the message to the communication control module - the communication control module prioritizes sending the message to the 4G communication module - when the message sending fails, the data is added to the buffer, and the message is sent again after the 4G communication channel is restored - until the message is successfully sent, the process ends.

[0064] Please refer to Figure 8 The following is an example of the sending process for the fifth type of information: Start process - Shipborne business system 21 generates a message that needs to be sent to the shore base - Shipborne business system 21 sends the message to the communication control module - The communication control module prioritizes sending the message to the 4G communication module - When the message sending fails, the data is directly discarded and not sent again - End process.

[0065] The beneficial technical effects of the communication system in this application embodiment are as follows: The message transmission channel can be switched on the ship via the shipborne communication control module 22. That is, according to the classified information, the corresponding communication mode is used to control whether the shipborne 4G communication module 23 or the Beidou communication module is activated. The message transmission channel can also be switched on shore via the shore-based communication control module 12. That is, according to the classified information, the corresponding communication mode is used to control whether the shore-based 4G communication module 13 is activated or connected to the Beidou communication platform 600. It has the advantages of low communication cost, less likely to be blocked communication channel, more timely transmission of key information, and higher security.

[0066] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for classifying and communicating ship-to-shore interactive information, characterized in that, Includes the following steps: Step 1: Obtain the interaction information between the shipborne terminal and the shore-based terminal. The interaction information includes the information sent and received between the shipborne terminal and the shore-based terminal. Each piece of interaction information includes a classification identification unit. Each classification identification unit corresponds to an information item category. One or more classification identification units correspond to an information communication category. Step 2: By identifying the classification recognition unit in the interactive information data, the multiple interactive information items are divided into various information item categories, and the information item categories are used to characterize the type to which the interactive information belongs; Step 3: By identifying the classification recognition unit in the interactive information data and according to the preset multi-dimensional classification rules, the multiple interactive information items are divided into multiple information communication categories. The dimensions in the multi-dimensional classification rules include: importance, urgency, timeliness, chronological order, reproducibility, and data size. The information and communication categories include: The first category of information includes at least: safety alarm information, distress information, and instruction information; The second category of information includes at least: emergency business process information; The third category of information includes at least: location information, operating condition alarm information, and monitoring alarm information; The fourth category of information includes at least: routine business process information and routine information for the first working condition; The fifth category of information includes at least: routine information for the second operating condition, routine monitoring information, file information, and real-time audio and video communication information; The interactive information of each of the aforementioned information communication categories is used to be sent using different communication methods, wherein at least one of the aforementioned information communication categories is used to be sent simultaneously using multiple communication channels, and the different communication methods are obtained by combining 4G channels and BeiDou short message channels; The first type of information is sent using the first communication method: information is sent simultaneously through the 4G channel and the BeiDou short message channel. If the 4G channel fails to send information, the information is immediately sent again through the 4G channel. If the BeiDou short message channel fails to send information, the information is immediately sent again through the BeiDou short message channel until the information is sent successfully at least once. The second type of information is sent using the second communication method: the 4G channel is used to send the information. If the 4G channel fails to send the information, it is immediately switched to the Beidou short message channel to send the information until the information is successfully sent or fails to be sent. The third type of information is sent using the third communication method: During the time period T1, a time-sensitive message is sent once every time t1 using the 4G channel, where T1 is N times t1 and N is a natural number greater than 1. Whenever the 4G channel fails to send information, the data of the current message to be sent is directly discarded. If no message is successfully sent within the time period T1, new information data is immediately sent through the Beidou short message channel. The fourth type of information is sent using the fourth communication method: the 4G channel. If the 4G channel fails to send the information, the information data is buffered. Once the 4G channel is restored, the information is sent again using the 4G channel until the information is successfully sent. The fifth type of information is sent using the fifth communication method: 4G channel. If the 4G channel fails to send the information, the data is discarded. When more than one message needs to be sent in the BeiDou short message channel within the same time period, causing multiple messages to be delayed and unable to be sent in a timely manner through the BeiDou short message channel, the multiple delayed messages form a BeiDou pending message pool. The messages in the BeiDou pending message pool include at least two of the following information communication categories: The first, second, and third types of information are sent in a queue according to the following rules, regardless of the order in which the messages were added to the Beidou pending message pool: the first type of information is sent before the second and third types of information, and the second type of information is sent before the third type of information. Within time T2 after the distance information is sent from the sender, the receiver sends a communication receipt to the sender, which is used to confirm whether the information has been received.

2. The ship-to-shore interactive information classification and communication method according to claim 1, characterized in that, The classification and identification unit is configured with thirteen types, and the thirteen types of the classification and identification unit correspond to the following thirteen information item categories: Safety alarm information refers to all information related to the life and property safety of the ship and its crew collected by the shipborne terminal system's hardware and software. A distress signal refers to any message sent manually that concerns the life and property safety of a ship and its crew. Command information refers to the operation command data sent from the shore-based terminal to the shipborne terminal. The operation commands include: navigation commands and stop commands. Positioning information refers to real-time positioning information during the ship's operation. The real-time positioning information includes longitude data, latitude data, speed data, heading data, and time data. The positioning information is used for shore-based monitoring of the ship's dynamics or for querying and analyzing the ship's trajectory. Emergency business process information refers to business approval information with a high degree of urgency that is exchanged between the shipborne terminal and the shore-based terminal. Routine business process information refers to business approval information with low urgency that is exchanged between the shipborne and shore-based terminals. Operating condition alarm information refers to dynamic data generated by a vessel during operation that exceeds a preset alarm threshold. The dynamic data includes: fuel level data, engine speed data, engine temperature data, communication and navigation equipment data, cargo load data, steering gear equipment information data, and power system information data. The first operating condition routine information refers to the dynamic data generated by the vessel during operation that does not exceed the preset alarm threshold. The dynamic data includes: fuel quantity information data, engine speed data, engine temperature data, communication and navigation equipment data, and cargo load data. The second operating condition routine information refers to the dynamic data generated by the vessel during operation that does not exceed the preset alarm threshold. The dynamic data includes: steering gear equipment information data and power system information data. Regular monitoring information refers to normal data obtained from monitoring the operating status of the shipborne terminal system's hardware and software. Monitoring and alarm information refers to abnormal data obtained from monitoring the operating status of the shipborne terminal system's hardware and software. Document information refers to electronic document data exchanged between the shipboard and shore-based terminals; and, Real-time audio and video communication information refers to the real-time audio and video data exchanged between the shipboard terminal and the shore-based terminal.

3. The ship-to-shore interactive information classification and communication method according to claim 1, characterized in that, It is applied between a ship-based terminal and a shore-based terminal, where the ship-based terminal and the shore-based terminal are the sender and receiver to each other.

4. A communication system, characterized in that, Based on the ship-shore interaction information classification and communication method according to any one of claims 1 to 3, the communication system includes: a shore-based communication control module (12) and a ship-borne communication control module (22); The shore-based communication control module (12) is used to switch the communication channel for sending information from the shore-based end to the shipborne end. The shore-based communication control module (12) is electrically connected to the shore-based 4G communication module (13) and wirelessly connected to the Beidou communication platform (600). The shore-based 4G communication module (13) is electrically connected to the first 4G antenna (300). The shipborne communication control module (22) is used to switch the communication channel for sending information from the shipborne end to the shore-based end. The shipborne communication control module (22) is electrically connected to the shipborne 4G communication module (23) and the Beidou communication module. The shipborne 4G communication module (23) is electrically connected to the second 4G antenna (400), and the Beidou communication module is electrically connected to the Beidou antenna (500). The Beidou communication module and the Beidou communication platform (600) are connected via Beidou satellite (700), and the shore-based 4G communication module (13) and the shipborne 4G communication module (23) are connected via wireless network.

5. The communication system according to claim 4, characterized in that, It also includes a cloud server (100) and an edge computing server (200). The shore-based communication control module (12), the shore-based 4G communication module (13) and the shore-based business system (11) are loaded on the cloud server (100), and the shipborne communication control module (22), the shipborne 4G communication module (23), the Beidou communication module and the shipborne business system (21) are loaded on the edge computing server (200).

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