A method for data communication in the measurement and control of dredging vessels

Abstract

This invention discloses a method for communication of telemetry and control data of a dredging vessel. The method includes: determining a communication strategy for target telemetry and control data based on the current operational status of the dredging vessel; the target telemetry and control data being the data used for information exchange between the dredging vessel's central control system and the target telemetry and control equipment; calling the communication protocol driver plugin corresponding to the target telemetry and control equipment to convert the target telemetry and control data into an adapted format; and transmitting the adapted format data based on the communication strategy of the target telemetry and control data. This invention can adapt to real-time operational status adjustments in the communication strategy for telemetry and control data, avoiding disorderly contention of communication resources by telemetry and control data.

Description

Technical Field

[0001] This invention relates to the field of dredging vessel control technology, and in particular to a method for communication of measurement and control data of dredging vessels. Background Technology

[0002] Dredging vessels frequently need to switch operational states during dredging operations, requiring data exchange with monitoring and control equipment to ensure control accuracy and operational safety requirements under different states. Existing data communication solutions for dredging vessels often employ a multi-protocol parallel transmission strategy with no difference between operational states. This leads to disordered data contention for communication resources, frequently resulting in channel conflicts and bandwidth congestion causing the loss of critical data frames. This severely impacts the accuracy of vessel control, hinders the improvement of automation and intelligence in dredging vessel operations, and easily triggers operational safety issues. Summary of the Invention

[0003] This invention provides a method for communication of telemetry and control data of dredging vessels, which can adapt to the real-time operation status and adjust the communication strategy of telemetry and control data to avoid disorderly competition for communication resources.

[0004] This invention provides a data communication method for the measurement and control of dredging vessels, comprising: The communication strategy for target measurement and control data is determined based on the current operating status of the dredging vessel. The target measurement and control data is the dredging vessel measurement and control data that enables information exchange between the central control system of the dredging vessel and the target measurement and control equipment. The target monitoring and control data is converted into a compatible format by calling the communication protocol driver plugin corresponding to the target monitoring and control equipment; and The adapted format data is transmitted based on the communication strategy of the target measurement and control data.

[0005] This invention provides a data communication method for dredging vessels. By determining the communication strategy for target measurement and control data based on the current operating state of the dredging vessel, it can acquire a communication strategy for target measurement and control data adapted to the current operating state. Based on the corresponding communication strategy, it calls the corresponding communication protocol driver plugin to convert the target measurement and control data into an adapted format and transmits the adapted format data. This method can accurately execute the communication strategy adapted to the current operating state to transmit dredging vessel measurement and control data. Furthermore, it can implement differentiated communication strategies suitable for real-time operating states for different dredging vessel measurement and control data, avoiding disorderly contention of communication resources by measurement and control data. This prevents the loss of critical data frames due to channel conflicts and bandwidth congestion, improves the accuracy of vessel operation control, enhances the automation and intelligence level of dredging vessel operations, and avoids operational safety issues. Attached Figure Description

[0006] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 This is a flowchart illustrating a data communication method for dredging vessel measurement and control provided in an embodiment of the present invention; Figure 2 This is another flowchart illustrating the data communication method for dredging vessel monitoring and control provided in this embodiment of the invention; Figure 3 This is another flowchart illustrating the data communication method for dredging vessel monitoring and control provided in this embodiment of the invention; Figure 4 This is another flowchart illustrating the data communication method for dredging vessel monitoring and control provided in this embodiment of the invention; Figure 5 This is a schematic diagram of the structure of the dredging vessel measurement and control data communication device provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0008] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0009] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0010] Figure 1This is a flowchart illustrating a data communication method for dredging vessel monitoring and control provided in an embodiment of the present invention. This method can be executed by a data communication device for dredging vessel monitoring and control provided in this embodiment, which can be implemented using software and / or hardware. In a specific embodiment, the device can be integrated into an electronic device, such as a computer or server. The following embodiments will illustrate this using the integration of the device into an electronic device as an example. (Reference) Figure 1 The method may specifically include the following steps: Step 101: Determine the communication strategy for target telemetry and control data based on the current operating status of the dredging vessel. The target telemetry and control data refers to the dredging vessel's telemetry and control data used to facilitate information exchange between the dredging vessel's central control system and the target telemetry and control equipment. This step enables the acquisition of a communication strategy for target telemetry and control data that is compatible with the current operating status.

[0011] Specifically, the aforementioned dredging vessels can be cutter suction dredging vessels, trailing suction dredging vessels, grab bucket dredging vessels, or chain bucket dredging vessels.

[0012] Specifically, the aforementioned target monitoring and control equipment can be any of the multiple monitoring and control devices carried by the dredging vessel, which may include: programmable logic controllers (PLCs), sensors, actuators, or positioning terminals, etc.

[0013] In a specific instance, when the dredging vessel is a cutter suction dredger, the multiple monitoring and control devices carried by the dredging vessel may include: cutter drive frequency converter, mud pump pressure sensor, trolley stroke cylinder actuator, GPS / BeiDou dual-mode positioning module, and mud concentration sensor.

[0014] In a specific instance, when the dredging vessel is a trailing suction hopper vessel, the multiple monitoring and control devices carried by the dredging vessel may include: a slurry flow sensor, a drag arm attitude sensor, and a winch actuator.

[0015] Optionally, the current operational status of the dredging vessel is one of several possible operational statuses.

[0016] Optional, multiple possible operation states include: excavation construction state, mud material transportation and discharge state, and shutdown standby state.

[0017] Specifically, the aforementioned mud transport and discharge status can include mud transfer status and mud disposal status.

[0018] Specifically, the above-mentioned excavation construction state can be understood as follows: the excavation equipment of the dredging vessel, such as the cutter head or rake head, has been lowered to the construction depth and is in a working state of rotating or cutting the soil layer, and related auxiliary systems such as positioning piles, transverse winches and mud pumps are put into operation in coordination, so that the vessel enters a continuous excavation operation state.

[0019] Specifically, the aforementioned mud transfer status can be understood as the operational status of dredging vessels continuously transporting the dredged mud-water mixture from the dredging point to the designated mud discharge area.

[0020] Specifically, the above-mentioned sludge disposal status can be understood as the operational status in which dredging vessels transport the mud-water mixture to the sludge disposal area or mud tank, and complete the final unloading of the mixture through methods such as dumping, backfilling, or pumping.

[0021] Specifically, the aforementioned standby state can be understood as a static working condition in which the dredging vessel has stopped operating all dredging-related equipment, but the vessel's main power supply and some monitoring and communication systems remain operational and can respond to instructions to resume construction at any time.

[0022] Optionally, target monitoring and control data includes reported data and distributed data.

[0023] Specifically, reported data can be understood as data sent by various measurement and control devices to the central control system, either proactively or in response to requests, to reflect information such as the device's own status, environmental parameters, operational measurements, and event records.

[0024] Specifically, report key operating parameters, routine operating parameters, and archived data of the dredging vessel.

[0025] Specifically, the aforementioned key operating parameters can be understood as dynamic control parameters of core operating parameters that directly affect the safety of construction operations, equipment stability, and dredging accuracy.

[0026] Specifically, key operating parameters for cutter suction dredging vessels may include: cutter speed, cutting depth, mud pump vacuum, mud concentration, pumping flow rate, positioning pile lifting position, pile locking status, mud level in the hopper, real-time positioning coordinates, and overload protection signals; key operating parameters for trailing suction hopper dredging vessels may include: trailing head movable cover angle, trailing arm attitude, hull draft, mud level in the hopper, real-time positioning coordinates, and overload protection signals; key operating parameters for grab bucket and chain bucket dredging vessels may include bucket lifting and lowering displacement, grab load, operating attitude, real-time positioning coordinates, and overload protection signals.

[0027] Specifically, the above-mentioned routine operating parameters can be understood as environmental parameters of equipment that do not participate in real-time closed-loop control but require routine monitoring of equipment that has achieved online early warning.

[0028] Specifically, the above-mentioned routine operating parameters may include: ship equipment liquid level, oil temperature, water temperature, equipment operating temperature, power supply voltage, ambient humidity, equipment operating status indicator signals, and other parameters.

[0029] Specifically, the aforementioned archived data can be understood as data that is not required for real-time control but is a synchronous summary of the entire work cycle archived information, and is required to be stored for a long time for traceability, analysis and auditing.

[0030] Specifically, the archived data mentioned above may include equipment operation logs, historical data, fault records, operation logs, system configuration parameters, and other data.

[0031] Specifically, the data sent can be understood as data initiated by the central control system and sent to various measurement and control devices to provide instructional information for remote control, parameter configuration, target setting, and system management.

[0032] Specifically, the above communication strategy can be understood as the technical rules for communication data scheduling and transmission control formulated in order to meet the control accuracy requirements of dredging vessels under various possible operating conditions and to ensure the operational safety of dredging vessels.

[0033] Specifically, the aforementioned communication strategy may include the scheduling mechanism, transmission cycle, and / or preemption decision for the corresponding measurement and control data.

[0034] Specifically, a scheduling mechanism can be understood as a set of rules and methods that determine the transmission order of data frames, channel access timing, and resource allocation methods when multiple telemetry and control data streams share the same communication channel. This aims to meet the differentiated needs of different data streams in terms of real-time performance, fairness, and bandwidth utilization. The aforementioned scheduling mechanism may include preemption mechanisms or time-slice round-robin mechanisms.

[0035] Specifically, the aforementioned scheduling mechanism may also include other mechanisms, such as first-come, first-served scheduling mechanism or deadline scheduling mechanism.

[0036] Specifically, the transmission period can be understood as the maximum allowable transmission interval for the corresponding measurement and control data.

[0037] Specifically, the preemption decision can be understood as the logical rules for whether the corresponding measurement and control data is allowed to interrupt the transmission of other data or be interrupted by other data when a priority preemption mechanism is adopted. Specifically, it can include enabling preemption, allowing preemption, and prohibiting preemption and being preempted.

[0038] Specifically, before step 101, target measurement and control data sent by the central control system and the target measurement and control equipment can be obtained.

[0039] Step 102 involves calling the communication protocol driver plugin corresponding to the target monitoring and control equipment to convert the target monitoring and control data into an adapted format. This step facilitates the accurate execution of communication strategies adapted to the current operational status for transmitting dredging vessel monitoring and control data.

[0040] Specifically, a unified interface specification for the data model of the measurement and control equipment and the communication protocol driver plug-in can be predefined, and based on the above plug-in interface, each communication protocol used by dredging vessels can be encapsulated into an independent communication protocol driver plug-in and adapted to cross-platform operation requirements.

[0041] Specifically, the aforementioned unified interface specifications may include initialization interfaces, data parsing interfaces, instruction encapsulation interfaces, status reporting interfaces, and fault diagnosis interfaces, providing standardized foundational support for subsequent unified access of multiple protocols and classification and scheduling of measurement and control data.

[0042] Specifically, the process of encapsulating the various communication protocols used by dredging vessels into independent communication protocol driver plugins and adapting them to cross-platform operation requirements may include: independently writing the processing logic of each communication protocol into complete protocol implementation code, compiling the protocol implementation code of each communication protocol into dynamic library plugins adapted to different platform operating systems (.so format for Linux, .dll format for Windows), and deploying them to the plugin library.

[0043] Specifically, the communication protocols used by the aforementioned dredging vessels may include: Modbus protocol, OPC-UA protocol, CANopen protocol, Profinet protocol, NMEA0183 protocol, and custom serial port protocol.

[0044] Specifically, a data model for the measurement and control equipment can be predefined. The data model can include the equipment identifier, communication protocol type, and communication cycle of the corresponding equipment.

[0045] Specifically, the data model of the measurement and control equipment may also include: the measurement and control data range and the measurement and control data fault threshold.

[0046] Specifically, the adapted format data can include standard format data adapted to the central control system and target equipment adapted to the target measurement and control equipment.

[0047] Specifically, the central control system of the dredging vessel can traverse all load monitoring and control devices of the dredging vessel through the communication bus and send device identification commands to read device identifiers and communication protocol types. The dredging vessel monitoring and control data communication method provided in this embodiment of the invention further includes, before step 102, acquiring and determining the corresponding communication protocol driver plugin for the target monitoring and control device based on the communication protocol type read by the central control system, and establishing a unique mapping relationship between device, protocol, and driver. This enables rapid access and protocol adaptation of various heterogeneous devices without manual configuration.

[0048] Optionally, the process of calling the communication protocol driver plugin corresponding to the target measurement and control equipment to convert the target measurement and control data into adapted format data includes: when the target measurement and control data is reported data, converting the target measurement and control data into standard format data through the communication protocol driver plugin corresponding to the target measurement and control equipment; when the target measurement and control data is transmitted data, converting the target measurement and control data into target device adapted data through the communication protocol driver plugin corresponding to the target measurement and control equipment.

[0049] It is understood that the embodiments of the present invention define a unified interface specification for the data model of the measurement and control equipment and the driver plug-in of the communication protocol, and adopt a component-based plug-in driver architecture. This allows for the adaptation of new protocols and new equipment without modifying the core system program. Only the matching of exclusive plug-ins is required to achieve plug-and-play functionality, supporting hot updates without downtime. This effectively reduces the system development, upgrade, and maintenance costs and ensures the continuity of ship operations. Furthermore, it enables seamless unified access to all conventional protocol equipment on dredging vessels, solving the problems of poor protocol compatibility and difficulty in adapting heterogeneous equipment in traditional systems, significantly improving equipment access and adaptation efficiency. In addition, when configured on new vessels, there is no need for large-scale modification of existing ship hardware equipment. It can flexibly adapt to new ship development and old ship renovation scenarios, and adapt to the needs of all types of dredging engineering operations, possessing extremely high practicality and market promotion value.

[0050] Specifically, the process of converting target measurement and control data into standard format data through the communication protocol driver plugin corresponding to the target measurement and control equipment may include: after receiving the target measurement and control data, sending the target measurement and control data to the corresponding communication protocol driver plugin, which then parses the target measurement and control data into standard format data according to the unified parsing protocol.

[0051] Specifically, the process of converting target measurement and control data into target device adaptation data through the communication protocol driver plugin corresponding to the target measurement and control equipment may include: after receiving the target measurement and control data, sending the target measurement and control data to the corresponding communication protocol driver plugin, and having the communication protocol driver plugin generate the communication protocol instruction frame corresponding to the target measurement and control equipment to obtain the target device adaptation data.

[0052] Step 103: Transmit adapted format data based on the communication strategy for target telemetry and control data. Building upon steps 101 and 102, this step accurately executes a communication strategy adapted to the current operational state to transmit dredging vessel telemetry and control data. This enables differentiated communication strategies applicable to real-time operational states for different dredging vessel telemetry and control data, preventing disorderly data contention for communication resources and avoiding the loss of critical data frames due to channel conflicts and bandwidth congestion. This improves vessel operation control accuracy, enhances the automation and intelligence of dredging vessel operations, and prevents operational safety issues.

[0053] Specifically, the process of transmitting adapted format data using the communication strategy based on target measurement and control data may include: when the target measurement and control data is reported data, sending the target measurement and control data to the central control system based on the preemption mechanism or time rotation mechanism in the communication strategy; when the target measurement and control data is sent data, sending the target measurement and control data to the target measurement and control equipment based on the preemption mechanism or time rotation mechanism in the communication strategy.

[0054] Specifically, the process of transmitting adapted format data using the communication strategy based on the target measurement and control data may include: when the target measurement and control data is reported data, sending the target measurement and control data to the central control system based on the transmission cycle in the communication strategy; when the target measurement and control data is sent data, sending the target measurement and control data to the target measurement and control equipment based on the transmission cycle in the communication strategy.

[0055] Specifically, the process of transmitting adapted format data using the communication strategy based on the target measurement and control data may include: when the target measurement and control data is data to be sent, the target measurement and control data is sent to the central control system based on the preemption decision in the communication strategy; when the target measurement and control data is data to be sent, the target measurement and control data is sent to the target measurement and control equipment based on the preemption decision in the communication strategy.

[0056] The following further describes the data communication method for dredging vessel measurement and control provided by the embodiments of the present invention.

[0057] Optionally, the dredging vessel monitoring and control data includes monitoring and control data with multiple communication priorities, and the communication strategies include global-level communication strategies and priority-level communication strategies.

[0058] Optional, multiple communication priorities include: high communication priority, medium communication priority, and low communication priority.

[0059] In a specific example, the communication priority of critical operating condition parameters can be set to high communication priority, the communication priority of routine operating condition parameters can be set to medium communication priority, and the communication priority of archived data can be set to low communication priority.

[0060] Specifically, the above communication strategies may also include parameter-level communication strategies.

[0061] Specifically, the above-mentioned global-level communication strategy can be understood as a communication strategy that applies to all the measurement and control data of dredging vessels.

[0062] Specifically, the above priority-level communication strategy can be understood as: the communication strategy for measurement and control data of the same priority level.

[0063] Specifically, the above-mentioned parameter item hierarchical communication strategy can be understood as: a communication strategy that applies to the measurement and control data corresponding to a parameter item.

[0064] like Figure 2 As shown, that is Figure 1 Step 101 may include the following steps: Step 1011: Determine the global hierarchical communication strategy corresponding to the target measurement and control data based on the current operation status.

[0065] Specifically, the process of determining the global-level communication strategy corresponding to the target measurement and control data based on the current operation status may include: determining the global-level communication strategy corresponding to the target measurement and control data based on the current operation status and the global-level communication strategy corresponding to the current operation status.

[0066] Specifically, a mapping relationship between different job states and corresponding global hierarchical communication strategies can be established before step 1011.

[0067] Optionally, the process of determining the global hierarchical communication strategy corresponding to the target measurement and control data based on the current operation status includes: when the current operation status is excavation construction status and mud material transportation and discharge status, the global hierarchical communication strategy is determined to be the execution priority preemption mechanism.

[0068] Optionally, the process of determining the global-level communication strategy corresponding to the target measurement and control data based on the current operation status includes: when the current operation status is a shutdown standby state, determining the global communication strategy to execute the time slice rotation mechanism.

[0069] Step 1012: Determine the priority level communication strategy for the target measurement and control data based on the current operation status and the communication priority level of the target measurement and control data.

[0070] Specifically, the process of determining the priority level communication strategy of the target measurement and control data based on the current operation status and the communication priority level of the target measurement and control data may include: determining the priority level communication strategy of the target measurement and control data based on the mapping relationship between the communication priority level of the target measurement and control data and the corresponding priority level communication strategy under the current operation status.

[0071] Specifically, between steps 10 and 12, a mapping relationship can be established between different communication limit levels and corresponding priority level communication strategies under different operating states.

[0072] Optionally, the process of determining the priority hierarchy communication strategy for target telemetry and control data based on the current operational status and the communication priority level of the target telemetry and control data includes: When the current operation status is excavation construction, if the communication priority level of the target measurement and control data is high, the priority level communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the first transmission cycle; if the communication priority level of the target measurement and control data is medium, the priority level communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the second transmission cycle, which is longer than the first transmission cycle; if the communication priority level of the target measurement and control data is low, the priority level communication strategy for the target measurement and control data is determined as follows: suspend the transmission of measurement and control data.

[0073] Specifically, the first and second transmission periods mentioned above can be set based on empirical data. For example, the first transmission period can be set to 10ms and the second transmission period can be set to 100ms.

[0074] Specifically, when the current operation status is excavation construction, if the communication priority level of the target measurement and control data is medium, the priority level communication strategy for the target measurement and control data can be determined as: suspend the transmission of measurement and control data.

[0075] Specifically, when the current operation status is excavation construction status, if the communication priority level of the target measurement and control data is medium communication priority, then the priority level communication strategy of the target measurement and control data is determined as follows: the measurement and control data is transmitted in the third transmission cycle.

[0076] Optionally, the process of determining the priority hierarchy communication strategy for target telemetry and control data based on the current operational status and the communication priority level of the target telemetry and control data includes: When the current operation status is mud transportation and discharge, if the communication priority level of the target monitoring and control data is high, the priority level communication strategy for the target monitoring and control data is determined as follows: transmit the monitoring and control data in the first transmission cycle; if the communication priority level of the target monitoring and control data is medium, the priority level communication strategy for the target monitoring and control data is determined as follows: transmit the monitoring and control data in the third transmission cycle, with the second transmission cycle being longer than the third transmission cycle; if the communication priority level of the target monitoring and control data is low, the priority level communication strategy for the target monitoring and control data is determined as follows: suspend the transmission of monitoring and control data.

[0077] Specifically, the third transmission cycle mentioned above can be set based on empirical data, for example, it can be set to 50ms.

[0078] Specifically, when the current operation status is mud transportation and discharge status, if the communication priority level of the target measurement and control data is medium communication priority, then the priority level communication strategy of the target measurement and control data is determined as: suspend the transmission of measurement and control data.

[0079] Specifically, when the current operation status is mud transportation and discharge status, if the communication priority level of the target measurement and control data is medium communication priority, then the priority level communication strategy of the target measurement and control data is determined as follows: the measurement and control data is transmitted in the second transmission cycle.

[0080] Specifically, when the current operation status is mud transportation and discharge status, if the communication priority level of the target measurement and control data is low, the priority level communication strategy of the target measurement and control data can be determined as follows: the measurement and control data is transmitted in the fourth transmission cycle.

[0081] Optionally, the process of determining the priority level communication strategy for target measurement and control data based on the current operation status and the communication priority level of the target measurement and control data includes: when the current operation status is a standby state, if the communication priority level of the target measurement and control data is high, the priority level communication strategy for the target measurement and control data is determined as follows: the measurement and control data is transmitted in the first transmission cycle; if the communication priority level of the target measurement and control data is medium, the priority level communication strategy for the target measurement and control data is determined as follows: the measurement and control data is transmitted in the third transmission cycle; if the communication priority level of the target measurement and control data is low, the priority level communication strategy for the target measurement and control data is determined as follows: the measurement and control data is transmitted in the fourth transmission cycle, where the fourth transmission cycle is longer than the second transmission cycle.

[0082] Specifically, the fourth cycle mentioned above can be set based on empirical data, for example, it can be set to 1000ms.

[0083] This invention employs a priority-preemptive time-slice round-robin hybrid scheduling mechanism, combined with a three-level communication priority system. Under dynamic operation conditions, high-priority communication data can preempt communication channel resources in real time, and the communication cycle can be differentiated. During dynamic operation, the stable transmission of core measurement and control parameters is prioritized. During idle intervals, bandwidth is evenly allocated through time-slice round-robin to ensure the orderly transmission of medium and low-priority data, completely eliminating the problems of multi-protocol parallel communication conflicts and bandwidth congestion.

[0084] The following further describes the data communication method for dredging vessel measurement and control provided by the embodiments of the present invention.

[0085] Optionally, the communication strategy may also include a parameter item-level communication strategy.

[0086] Optionally, when the current operation status is excavation or mud transport, such as Figure 3 As shown, that is Figure 1 Step 101 may include the following steps: Step 1011: Determine the global hierarchical communication strategy corresponding to the target measurement and control data based on the current operation status.

[0087] Step 1012: Determine the priority level communication strategy for the target measurement and control data based on the current operation status and the communication priority level of the target measurement and control data.

[0088] Step 1013: Determine the parameter item-level communication strategy for the target measurement and control data based on the communication priority level of the target measurement and control data.

[0089] Optionally, the above-mentioned communication strategy for determining the parameter item level of the target measurement and control data based on the communication priority level of the target measurement and control data includes: when the communication priority of the target measurement and control data is high, determining the parameter item level of the target measurement and control data based on whether the target measurement and control data is a key working condition parameter of the current operation status.

[0090] It is understandable that steps 1011, 1012, and 1013 are not sequential and can be arranged arbitrarily.

[0091] Optionally, the process of determining the parameter item-level communication strategy of the target measurement and control data based on whether the target measurement and control data is a key operating parameter of the current operation status includes: when the communication priority of the target measurement and control data is high, if the target measurement and control data is a key operating parameter of the current operation status, the parameter item-level communication strategy of the target measurement and control data is determined to enable preemption; if the target measurement and control data is not a key operating parameter of the current operation status, the parameter item-level communication strategy of the target measurement and control data is determined to prohibit preemption and being preempted.

[0092] Specifically, the key operating parameters of the current working state can be understood as the dynamic control parameters of the core operating parameters that affect the safety of construction operations, equipment stability, and dredging accuracy under the current working state.

[0093] In a specific example, for a cutter suction dredging vessel, when the current operating state is excavation construction, the key operating parameters of the current operating state include: cutter speed, cutting depth, mud pump vacuum, mud concentration, pumping flow rate, positioning pile lifting position, and pile locking status; when the current operating state is mud transportation and discharge, the key operating parameters of the current operating state include: real-time positioning coordinates, overload protection signal, mud pump vacuum, mud concentration, and pumping flow rate.

[0094] In a specific example, for a trailing suction hopper dredging vessel, when the current operating state is excavation construction, the key operating parameters of the current operating state include: the depth of the rake head into the soil, the attitude of the rake head and rake arm, and the draft of the hull; when the current operating state is sludge transportation and discharge, the key operating parameters of the current operating state include: real-time positioning coordinates, overload protection signal, and sludge level in the hopper.

[0095] Optionally, the process of determining the parameter item-level communication strategy of the target measurement and control data based on whether the target measurement and control data is a key working condition parameter of the current operation status includes: when the communication priority of the target measurement and control data is medium or low, the parameter item-level communication strategy of the target measurement and control data is determined to allow preemption.

[0096] The embodiments of the present invention can help to further ensure the stable transmission of core measurement and control parameters corresponding to the corresponding operation status during dynamic operation.

[0097] The following further describes the data communication method for dredging vessel measurement and control provided in the embodiments of the present invention, such as... Figure 4 As shown, it may include the following steps: Step 401: Determine the communication strategy for target measurement and control data based on the current operating status of the dredging vessel.

[0098] Step 402: Call the communication protocol driver plugin corresponding to the target measurement and control equipment to convert the target measurement and control data into an adapted format.

[0099] Step 403: Transmit adapted format data based on the communication strategy of target measurement and control data.

[0100] Step 404: Monitor the switching characteristic signal of the current switchable state. The current switchable state is the work state that can be directly switched to from the current work state.

[0101] Specifically, when the current state is excavation construction, the current accessible states can include: mud material transportation and discharge state and standby state.

[0102] Specifically, when the current state is mud material transportation and discharge state, the current switchable state can include: shutdown standby state.

[0103] Specifically, when the current state is a standby state, the currently available states can include: excavation construction state and mud material transportation and discharge state.

[0104] Specifically, the entry characteristic signal for each operation state can include multiple characteristic signals.

[0105] Specifically, the entry characteristic signals of mud transportation and discharge status can include: for cutter suction dredgers, the excavation equipment is stationary and the pipeline is continuously pumping and filling; for trailing suction dredgers, the rake head is retracted, the ship is fully loaded and sails away from the dredging trench at high speed, and the mud discharge signal is received upon arrival at the mud dumping area; for grab bucket and chain bucket dredgers, the shore excavation stops, the accompanying mud barge is fully loaded and sails away, and the mud discharge signal is received at a fixed point.

[0106] Specifically, the characteristic signals for entering the standby state can include: for cutter suction dredgers, the cutter head stop signal, the mud pump stop signal, the positioning pile stop signal, and the trolley stop signal; for trailing suction dredgers, the rake head retraction signal, the dredging system stop signal, and the ship anchoring stationary signal; and for grab bucket and chain bucket dredgers, the excavator tool return signal, the lifting and transmission equipment stop signal, and the no-load operation signal.

[0107] Specifically, the entry characteristic signals of the excavation construction status can include: the cutter head operation signal, bridge lowering signal, mud pump start signal, and trolley and positioning pile action signal of the cutter suction dredger; the rake head lowering signal, rake arm attitude adjustment signal, low-speed digging signal, flushing pump start signal, and mud hopper filling signal of the trailing suction dredger; and the bucket lowering signal, grab load raising signal, continuous work signal of the working equipment, and excavation mechanism operation signal of the grab bucket and chain bucket dredger.

[0108] Specifically, the process of monitoring the cut-in characteristic signal of the current cut-in state can include: monitoring the cut-in characteristic signal of the current cut-in state in real time at a set monitoring period.

[0109] Specifically, the monitoring cycle mentioned above can be set based on empirical data, for example, it can be set to 10ms.

[0110] Step 405: When the cut-in characteristic signal of the current cut-in state is detected, the communication strategy of determining the target measurement and control data based on the latest cut-in operation state of the dredging vessel is started based on the latest cut-in operation state of the dredging vessel.

[0111] Specifically, the process of initiating and executing a communication strategy to determine target measurement and control data based on the current operation status of the dredging vessel when the initiation characteristic signal of the current initiation state is detected may include: when any one of the multiple signals of the initiation characteristic signal of the current initiation state is detected, the communication strategy to determine target measurement and control data based on the current operation status of the dredging vessel is initiated and executed based on the latest initiation operation status of the dredging vessel.

[0112] The embodiments of the present invention can automatically identify the switching actions of dredging vessels in real time, and then automatically match the communication strategy with the operation status in a timely manner, perfectly adapting to the dynamic switching characteristics of dredging operations, and fundamentally solving problems such as multi-protocol parallel communication conflicts, bandwidth congestion and data delay.

[0113] In a specific example, the dredging vessel telemetry and control data communication method provided in this embodiment of the invention further includes: real-time monitoring of the communication status of each communication protocol driver plug-in, the packet loss rate and transmission delay of each communication priority telemetry and control data, and the online status of each telemetry and control device; for common faults such as communication interruption, data anomaly, protocol mismatch, and priority scheduling disorder, automatically performing self-healing operations such as communication reconnection, data retransmission, driver restart, port reset, and scheduling rule reset, and synchronously uploading fault alarm information and fault type to the central control system to facilitate quick troubleshooting and maintenance by staff.

[0114] In a specific example, the dredging vessel measurement and control data communication method provided in this embodiment of the invention further includes: when it is necessary to add new measurement and control equipment or communication protocols, only a driver plug-in conforming to the unified interface specification needs to be developed and put into the system plug-in library. The system can automatically identify, load and complete the adaptation of the operation status scheduling rules, support hot-swappable loading of plug-ins, and achieve plug-and-play expansion of new equipment and new protocols without restarting the system or modifying the core control program.

[0115] In a specific example, after the cutter suction dredging vessel implements the dredging vessel measurement and control data communication method provided in this embodiment of the invention, the system operates stably and reliably as a whole. Multi-protocol parallel communication is conflict-free and lag-free. The core construction data transmission delay is ≤18ms, which is better than the preset design target of 20ms. The overall data packet loss rate is as low as 0.05%, which is better than the preset design standard of <0.1% packet loss rate in all scenarios. The cutter speed adjustment, mud pump vacuum monitoring, and trolley stroke control accuracy all meet the high-standard dredging operation requirements of large port channels. Compared with traditional customized drive solutions, it significantly reduces the system development, debugging, and subsequent operation and maintenance costs.

[0116] In a specific example, after the trailing suction hopper dredging vessel implements the dredging vessel telemetry and control data communication method provided in this embodiment of the invention, the system exhibits excellent adaptability, stability, and scalability. Multi-protocol parallel communication is conflict-free and congestion-free, with an overall data transmission latency of ≤16ms, which is better than the preset design target of 20ms. The global data packet loss rate is as low as 0.03%, which is better than the preset design standard of <0.1% packet loss rate in all scenarios. The success rate of custom niche protocol adaptation is 100%. It can perfectly adapt to complex operation scenarios such as river and lake dredging and land reclamation of large trailing suction hopper dredging vessels, and has extremely strong engineering application value and versatility.

[0117] Figure 5 This is a structural diagram of a dredging vessel telemetry and control data communication device provided in an embodiment of the present invention. This device is suitable for executing the dredging vessel telemetry and control data communication method provided in an embodiment of the present invention. Figure 5 As shown, the device may specifically include: The communication strategy acquisition module 501 is used to determine the communication strategy for target measurement and control data based on the current operating status of the dredging vessel. The target measurement and control data is the dredging vessel measurement and control data that enables information exchange between the central control system of the dredging vessel and the target measurement and control equipment.

[0118] The format conversion module 502 is used to call the communication protocol driver plugin corresponding to the target measurement and control equipment to convert the target measurement and control data into adapted format data.

[0119] The transmission module 503 is used to transmit adapted format data based on the communication strategy of target measurement and control data.

[0120] The invention provides a dredging vessel telemetry and control data communication device that can determine the communication strategy for target telemetry and control data based on the current operating status of the dredging vessel. It can acquire the communication strategy for target telemetry and control data adapted to the current operating status; and based on the corresponding communication strategy, it calls the corresponding communication protocol driver plugin to convert the target telemetry and control data into an adapted format and transmits the adapted format data. This allows for precise execution of the communication strategy adapted to the current operating status when transmitting dredging vessel telemetry and control data. Furthermore, it enables differentiated communication strategies suitable for real-time operating statuses for different dredging vessel telemetry and control data, avoiding disorderly contention of communication resources by telemetry and control data. This prevents the loss of critical data frames due to channel conflicts and bandwidth congestion, improves the accuracy of vessel operation control, enhances the automation and intelligence level of dredging vessel operations, and avoids operational safety issues.

[0121] Optionally, the dredging vessel monitoring and control data includes monitoring and control data with multiple communication priorities, and the communication strategies include global-level communication strategies and priority-level communication strategies.

[0122] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to determine the global-level communication strategy corresponding to the target measurement and control data based on the current operation status; and to determine the priority-level communication strategy of the target measurement and control data based on the current operation status and the communication priority level of the target measurement and control data.

[0123] Optionally, the current operating status of the dredging vessel is one of several possible operating states, including: excavation and construction, sludge transportation and discharge, and standby; and multiple communication priorities, including: high communication priority, medium communication priority, and low communication priority.

[0124] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to determine the global hierarchical communication strategy as an execution priority preemption mechanism when the current operation state is excavation construction state and mud material transportation and discharge state; and to determine the global communication strategy as an execution time slice rotation mechanism when the current operation state is shutdown standby state.

[0125] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to, when the current operation state is excavation construction state, if the communication priority level of the target measurement and control data is high, then the priority level communication strategy of the target measurement and control data is determined as follows: transmit the measurement and control data in the first transmission cycle; if the communication priority level of the target measurement and control data is medium, then the priority level communication strategy of the target measurement and control data is determined as follows: transmit the measurement and control data in the second transmission cycle, the second transmission cycle being longer than the first transmission cycle; if the communication priority level of the target measurement and control data is low, then the priority level communication strategy of the target measurement and control data is determined as follows: suspend the transmission of measurement and control data.

[0126] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to, when the current operation state is mud transportation and discharge state, if the communication priority level of the target measurement and control data is high communication priority, then the priority level communication strategy of the target measurement and control data is determined as follows: transmit the measurement and control data in the first transmission cycle; if the communication priority level of the target measurement and control data is medium communication priority, then the priority level communication strategy of the target measurement and control data is determined as follows: transmit the measurement and control data in the third transmission cycle, where the second transmission cycle is greater than the third transmission cycle; if the communication priority level of the target measurement and control data is low communication priority, then the priority level communication strategy of the target measurement and control data is determined as follows: suspend the transmission of measurement and control data.

[0127] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to, when the current operation state is a standby state, determine the priority level communication strategy of the target measurement and control data as follows: if the communication priority level of the target measurement and control data is high, then the measurement and control data is transmitted in the first transmission cycle; if the communication priority level of the target measurement and control data is medium, then the priority level communication strategy of the target measurement and control data is determined as follows: the measurement and control data is transmitted in the third transmission cycle; if the communication priority level of the target measurement and control data is low, then the priority level communication strategy of the target measurement and control data is determined as follows: the measurement and control data is transmitted in the fourth transmission cycle, where the fourth transmission cycle is longer than the second transmission cycle.

[0128] Optionally, the communication strategy may also include a parameter item-level communication strategy.

[0129] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to determine the parameter item-level communication strategy of the target measurement and control data based on the communication priority level of the target measurement and control data when the current operation state is excavation construction state or mud material transportation and discharge state.

[0130] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to, when the communication priority of the target measurement and control data is high communication priority, if the target measurement and control data is a key operating condition parameter of the current operation state, then determine the parameter item-level communication strategy of the target measurement and control data to enable preemption; if the target measurement and control data is not a key operating condition parameter of the current operation state, then determine the parameter item-level communication strategy of the target measurement and control data to prohibit preemption and being preempted.

[0131] Optionally, the aforementioned communication strategy acquisition module 501 can be specifically used to determine the parameter item-level communication strategy of the target measurement and control data to allow preemption when the communication priority of the target measurement and control data is medium or low.

[0132] Optionally, the dredging vessel telemetry and control data communication device provided in this embodiment of the invention further includes a switching action monitoring module, which is used to monitor the switching characteristic signal of the current switchable state, the current switchable state being the operating state that can be directly switched from the current operating state; and when the switching characteristic signal of the current switchable state is detected, to start and execute the communication strategy of determining the target telemetry and control data based on the latest operating state of the dredging vessel.

[0133] Optionally, the target measurement and control data includes reported data and distributed data; the adapted format data includes standard format data adapted to the central control system and target equipment adapted data adapted to the target measurement and control equipment.

[0134] Optionally, the format conversion module 502 can be specifically used to convert the target measurement and control data into standard format data through the communication protocol driver plugin corresponding to the target measurement and control equipment when the target measurement and control data is reported data; and to convert the target measurement and control data into target device-compatible data through the communication protocol driver plugin corresponding to the target measurement and control equipment when the target measurement and control data is sent data.

[0135] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is merely an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the functional modules described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0136] This invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the dredging vessel telemetry and control data communication method provided in any of the above embodiments.

[0137] This invention also provides a computer-readable medium having a computer program stored thereon, which, when executed by a processor, implements the dredging vessel telemetry and control data communication method provided in any of the above embodiments.

[0138] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the dredging vessel telemetry and control data communication method as described in any of the embodiments of this invention.

[0139] The following is for reference. Figure 6 It shows a schematic diagram of the structure of a computer system 600 suitable for implementing an electronic device according to embodiments of the present invention. Figure 6 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0140] like Figure 6 As shown, the computer system 600 includes a central processing unit (CPU) 601, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 602 or programs loaded from storage section 608 into random access memory (RAM) 603. The RAM 603 also stores various programs and data required for the operation of the system 600. The CPU 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0141] The following components are connected to I / O interface 605: an input section 606 including a keyboard, mouse, etc.; an output section 607 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 608 including a hard disk, etc.; and a communication section 609 including a network interface card such as a LAN card, modem, etc. The communication section 609 performs communication processing via a network such as the Internet. A drive 610 is also connected to I / O interface 605 as needed. A removable medium 611, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 610 as needed so that computer programs read from it can be installed into storage section 608 as needed.

[0142] In particular, according to the embodiments disclosed in this invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 609, and / or installed from removable medium 611. When the computer program is executed by central processing unit (CPU) 601, it performs the functions defined above in the system of this invention.

[0143] It should be noted that the computer-readable medium shown in this invention can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this invention, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0144] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0145] The modules and / or units described in the embodiments of the present invention can be implemented in software or hardware. The described modules and / or units can also be housed in a processor; for example, a processor may be described as including a communication policy acquisition module, a format conversion module, and a transmission module. The names of these modules do not necessarily limit the module itself.

[0146] In another aspect, the present invention also provides a computer-readable medium, which may be included in the device described in the above embodiments; or it may exist independently and not assembled into the device. The computer-readable medium carries one or more programs, which, when executed by the device, cause the device to include: determining a communication strategy for target telemetry and control data based on the current operating status of the dredging vessel, wherein the target telemetry and control data is dredging vessel telemetry and control data used to realize information exchange between the dredging vessel's central control system and the target telemetry and control equipment; calling a communication protocol driver plugin corresponding to the target telemetry and control equipment to convert the target telemetry and control data into adapted format data; and transmitting the adapted format data based on the communication strategy for the target telemetry and control data.

[0147] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A data communication method for the measurement and control of dredging vessels, characterized in that, include: The communication strategy for target measurement and control data is determined based on the current operating status of the dredging vessel. The target measurement and control data is the dredging vessel measurement and control data that enables information exchange between the central control system of the dredging vessel and the target measurement and control equipment. The target measurement and control data is converted into an adapted format by calling the communication protocol driver plugin corresponding to the target measurement and control equipment. as well as The adapted format data is transmitted based on the communication strategy of the target measurement and control data.

2. The dredging vessel telemetry and control data communication method according to claim 1, characterized in that, The dredging vessel's telemetry and control data includes telemetry and control data with multiple communication priorities, and the communication strategy includes a global-level communication strategy and a priority-level communication strategy. The communication strategy for determining target measurement and control data based on the current operational status of the dredging vessel includes: Determine the global hierarchical communication strategy corresponding to the target measurement and control data based on the current operation status; as well as The priority level communication strategy for target measurement and control data is determined based on the current operation status and the communication priority level of the target measurement and control data.

3. The data communication method for dredging vessel measurement and control according to claim 2, characterized in that, The current operating status of the dredging vessel is one of several possible operating states, including: excavation and construction, sludge transportation and discharge, and standby; the multiple communication priorities include: high communication priority, medium communication priority, and low communication priority. The global hierarchical communication strategy for determining the target measurement and control data based on the current operation status includes: when the current operation status is excavation construction status and mud material transportation and discharge status, the global hierarchical communication strategy is determined to be an execution priority preemption mechanism; when the current operation status is a shutdown standby status, the global communication strategy is determined to be an execution time slice rotation mechanism. The method for determining the priority hierarchy communication strategy for target measurement and control data based on the current operational status and the communication priority level of the target measurement and control data includes: When the current operation status is excavation construction status, if the communication priority level of the target measurement and control data is high, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data with a first transmission cycle; if the communication priority level of the target measurement and control data is medium, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data with a second transmission cycle, the second transmission cycle being longer than the first transmission cycle; if the communication priority level of the target measurement and control data is low, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: suspend the transmission of measurement and control data. When the current operation status is mud transportation and discharge status, if the communication priority level of the target measurement and control data is high, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the first transmission cycle; if the communication priority level of the target measurement and control data is medium, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the third transmission cycle, where the second transmission cycle is longer than the third transmission cycle; if the communication priority level of the target measurement and control data is low, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: suspend the transmission of measurement and control data. When the current operation state is a standby state, if the communication priority level of the target measurement and control data is high, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the first transmission cycle; if the communication priority level of the target measurement and control data is medium, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the third transmission cycle; if the communication priority level of the target measurement and control data is low, the priority hierarchy communication strategy for the target measurement and control data is determined as follows: transmit the measurement and control data in the fourth transmission cycle, wherein the fourth transmission cycle is longer than the second transmission cycle.

4. The dredging vessel telemetry and control data communication method according to claim 3, characterized in that, The communication strategy also includes a parameter-level communication strategy; The communication strategy for determining target measurement and control data based on the current operational status of the dredging vessel includes: When the current operation status is excavation construction or mud transportation and discharge, the communication strategy of the parameter item level of the target measurement and control data is determined based on the communication priority level of the target measurement and control data.

5. The dredging vessel measurement and control data communication method according to claim 4, characterized in that... The communication strategy for determining the parameter item hierarchy of the target measurement and control data based on the communication priority level of the target measurement and control data includes: When the communication priority of the target measurement and control data is high, if the target measurement and control data is a key operating condition parameter of the current operation state, then the parameter item-level communication strategy of the target measurement and control data is set to enable preemption; if the target measurement and control data is not a key operating condition parameter of the current operation state, then the parameter item-level communication strategy of the target measurement and control data is set to prohibit preemption and being preempted. When the communication priority of the target measurement and control data is medium or low, the communication strategy of the parameter item level of the target measurement and control data is set to allow preemption.

6. The data communication method for dredging vessel measurement and control according to claim 1, characterized in that, Also includes: Monitor the switching characteristic signal of the current switchable state, where the current switchable state is the work state that can be directly switched to from the current work state; as well as When the cut-in characteristic signal of the current cut-in state is detected, the communication strategy of determining target measurement and control data based on the latest cut-in operation state of the dredging vessel is initiated and executed based on the latest cut-in operation state of the dredging vessel.

7. The data communication method for dredging vessel measurement and control according to claim 1, characterized in that, The target measurement and control data includes reported data and transmitted data; the adapted format data includes standard format data adapted to the central control system and target equipment adapted data adapted to the target measurement and control equipment. The step of calling the communication protocol driver plugin corresponding to the target measurement and control equipment to convert the target measurement and control data into adapted format data includes: When the target measurement and control data is reported data, the target measurement and control data is converted into the standard format data by the communication protocol driver plugin corresponding to the target measurement and control equipment. When the target measurement and control data is transmitted data, the target measurement and control data is converted into target device-compatible data through the communication protocol driver plugin corresponding to the target measurement and control equipment.

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