Ship target characteristic data application business process modeling method based on SysML

Abstract

The invention belongs to the technical field of system engineering, and relates to a ship target characteristic data application business process modeling method based on SysML. A ship target characteristic data application business process is taken as a clue, and around a ship business scene, interaction of each process link to target characteristic data is analyzed through logic analysis and model establishment of application links in the business process, and a relationship between a data application demand relationship and target characteristic data is established. The method mainly comprises the following steps: (1) determining ship target characteristic data modeling elements; (2) analyzing a ship target characteristic data application scene; (3) developing a ship target characteristic data application business process model; (4) defining ship target characteristics and target characteristic data; (5) carding ship target characteristic data application links; and (6) establishing an association relationship between the ship target characteristic data and the characteristic data.

Description

Technical Field

[0001] The present invention belongs to the technical field of model-based system engineering, and specifically relates to a ship target characteristic data application business process modeling method based on SysML. Background Art

[0002] Target characteristic data refers to the characteristic and attribute data about the target collected and integrated from multiple sources. This data can cover all aspects of the target, including physical characteristics, behavior patterns, target surroundings, etc. These data come from various sources and provide comprehensive and multi-dimensional target characteristic information.

[0003] As one of the most important and basic resources for information security, target characteristics and feature data affect the perception, inference and decision-making of targets, and are the basis for supporting the development of information technology and the use of information advantages. The acquisition, processing and application of target characteristic data are extremely important for the development of modern information technology. However, since target characteristic data covers a large number of target samples and observation data, the application complexity of analyzing and mining target characteristic data has been greatly increased.

[0004] Ship target characteristic data is data generated, transmitted and applied around ship targets. With the development of information technology and sensor technology, new requirements have been put forward for the application of ship target characteristic data. In the existing technology, the processing and modeling of ship target characteristic data application are mostly centered on how to use existing data and sensor parameters for theoretical calculation or processing to obtain characteristic data, but no mining is carried out from the perspective of the target characteristic data application business process. In the existing technology, it is impossible to establish the relationship between the target characteristic data application demand relationship and the target characteristic data. Summary of the invention

[0005] The purpose of the present invention is to provide a SysML-based ship target characteristic data application business process modeling method to enhance the effective connection between target characteristic data application requirements and engineering technology research results, and fully serve the target characteristic data in the application link.

[0006] To solve this technical problem, the technical solution of the present invention is:

[0007] A ship target characteristic data application business process modeling method based on SysML includes the following steps:

[0008] Step 1: Determine the modeling elements of ship target characteristic data: According to the application scope of ship target characteristic data, sort out and determine the basic concepts in the application of ship target characteristic data, and build modeling elements dedicated to the field of ship target characteristic data based on SysML and integrating domain expertise, including but not limited to entities, relationships, attributes, etc., to express the business process of ship target characteristic data application;

[0009] Step 2: Analyze the application scenarios of ship target characteristic data: Analyze the environment and scenarios in which the ship target characteristic data is actually applied, and describe the sea environment, targets, and the order of tasks performed by ships when the ship target characteristic data is used;

[0010] Step 3: Develop a business process model for ship target characteristic data application: Sort out the basic business application process of target characteristic data in the application scenario, establish the SysML activity diagram of the business application process according to the system architecture framework standard, and verify the model through simulation;

[0011] Step 4: Define ship target characteristics and target characteristic data: Sort out the concepts in the field of ship target characteristics and define them in a hierarchical manner to ensure that the concept expression of characteristic data required by the coverage process is supported to support the standardized modeling of application business processes:

[0012] Step 5: Sort out the application links of ship target characteristic data: Analyze the application links included in each business process, identify the target characteristic data required for each application link, and build the model according to the system architecture framework standard;

[0013] Step 6: Establish the association relationship between ship target characteristic data and feature data: Through the SysML parameter diagram, establish the association dependency relationship between the target characteristic data and the basic data, and form a data mapping relationship diagram based on this, so as to facilitate the tracing of target characteristic model data application requirements.

[0014] In step 4, the specific operations for the ship target are as follows:

[0015] Step 41: Define ship target characteristics: sort out the original performance characteristics of the ship target, classify the original performance characteristics, and use the SysML model to describe and express them in a standardized manner;

[0016] Step 42: Define ship target characteristic data: Analyze the core concepts and hierarchical structure of the ship target characteristic data required to be applied in each business activity process, sort out the target characteristic data, and use the SysML model for standardized description and expression.

[0017] In step 5, the specific operations of building a model for the ship target are as follows:

[0018] Step 51: Modeling the ship target characteristic data application process: With the ship target characteristic data application process closed loop as the goal, decompose the business process, sort out the domain concepts of the process links, and model each process link facing the ship target; use SysML activity diagrams to analyze the application requirements of each process link for target characteristic data, and clarify the information exchange relationship between business activities and business elements;

[0019] Step 52, establish a mapping between the ship target characteristic data application link and the business process: analyze and construct the corresponding relationship between the data of the relevant application link and the business process to represent the application link included in the business process.

[0020] The specific operations of step 6 are as follows:

[0021] Step 61, define and establish the relationship between the ship target characteristic related data: define the target characteristic data and characteristic data constraints through the SysML parameter diagram, constrain the relationship between each parameter, and establish the association relationship between the ship target characteristic data and the characteristic data;

[0022] Step 62, establish data mapping relationship: according to the constraint relationship of ship target characteristic parameters defined in the parameter diagram, form a data mapping relationship diagram to ensure the integrity and traceability of ship target characteristic data application requirements.

[0023] For ship targets, the entities include application systems, application nodes, business process activities, resource function activities, resource information, application scenarios, application links, tasks, scenario targets, conditions, location areas, environments, resources, observation objects, target characteristics, target characteristic data, and application data.

[0024] The relationships include sequence, phases, have, implement, perform, impact, input, output, association, etc. A sequence relationship means that one modeling element precedes another modeling element in the time range; a phase assignment relationship means that a scenario goal is assigned to a task; a have relationship means that one modeling element contains another modeling element; an implementation relationship means how a modeling element of a higher level of abstraction is realized by a modeling element of a lower level of abstraction; an execution relationship means the traceability relationship between a modeling element and the activities they can perform; an impact relationship is used to indicate that a modeling element is affected by another modeling element; an input relationship and an output relationship respectively indicate that a modeling element is the input or output of another modeling element; an association relationship means that a relationship has a direct or indirect connection with another modeling element.

[0025] The attributes include the application environment, application location and application system of the application scenario, the measurement of target characteristics, the measurement of target characteristic data, the measurement of application data, and the goal of the task.

[0026] When analyzing the application scenarios of ship target characteristic data, the elements involved are application scenarios, scenario objectives, and tasks;

[0027] The relationships involved may include sequential relationships between task phases, allocated phase relationships between scenario goals and task phases, etc.

[0028] The attributes involved include the attributes of the application scenario: application environment and application location, etc.

[0029] The application environment attributes describe the environment in the application scenario, such as sea conditions: sea condition level 3, sea condition level 4, etc.

[0030] The application location attribute should describe the location area of ​​the sea area, such as the longitude and latitude of the sea area.

[0031] For ship targets, the business process described in step 3 includes discovering ship targets, collecting ship target feature data, preprocessing feature data, extracting characteristic data, estimating ship target features, and analyzing and identifying them.

[0032] The ship target features in step 41 include geometric features, structural features, motion features and environmental coupling features;

[0033] Geometric features include length, width, shape and outline;

[0034] Structural features include blade features, material features, key equipment, etc. Blade features include the number of blades and blade shaft frequency; Material features can be refined into main material type and material distribution;

[0035] The motion characteristics mainly describe the speed of the ship target; the motion characteristics include speed, distance, heading, etc.

[0036] Environmental coupling features mainly consider wake features; environmental coupling features include wake features, infrared features, etc. In addition, when defining target features, the measurement units of each feature must be defined simultaneously.

[0037] The ship target characteristic data in step 42 includes optical target characteristic data, acoustic target characteristic data, electromagnetic target characteristic data, and infrared target characteristic data;

[0038] Acoustic target characteristic data include acoustic radiation characteristic data and acoustic scattering characteristic data; for ship targets, the acoustic radiation characteristic data include modulation spectrum characteristic data, line spectrum characteristic data, transient signal, time-frequency distribution characteristics, azimuth change rate, broadband characteristics, etc.; acoustic scattering characteristic data include echo characteristics, echo intensity, and echo bright spot intensity, etc. The measurement of modulation spectrum characteristic data includes the number of modulation line spectra, modulation line spectrum frequency, and modulation depth. When defining ship target characteristic data, the measurement of target characteristics needs to be determined.

[0039] Preferably, in step 61, the relationship between the parameters is constrained by means of analytical expressions or data table lookup.

[0040] The beneficial effects of the present invention are:

[0041] The method of the present invention takes the ship target characteristic data application business process as a clue, focuses on the ship business scenario, analyzes the interaction of each process link with the target characteristic data through logical analysis and model establishment in the application link of the business process, and establishes the relationship between the ship target characteristic data application demand relationship and the target characteristic data. The method associates the ship target characteristic data application demand with the characteristic data, which helps to identify the characteristics of the target in the business application so as to find anomalies and provide early warnings, can help make decisions and strategies, and has strong practical application value.

[0042] (1) The present invention provides a SysML-based ship target characteristic data application business process modeling method, which takes into account the application scenarios of ship target characteristic data. By using the system architecture method and SysML language, on the basis of sorting out the ship target characteristic data application process, the ship target characteristic data application requirements are effectively connected with the target characteristics, and the ship target characteristic data results are fully used in the application link.

[0043] (2) The present invention reduces the complexity of mining target characteristic data application requirements by modeling the business process of ship target characteristic data application and analyzing the target features covered by the target characteristic data.

[0044] (3) The present invention can realize the association of behaviors between models and the association of information between data, ensuring the traceability and reusability of ship target characteristic data application requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions implemented in the present invention, the following is a brief explanation of the drawings required to be used in the examples of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 Schematic diagram of the steps of the method of the present invention;

[0047] Figure 2 This is an example diagram of the ship target characteristic data modeling element of the method of the present invention;

[0048] Figure 3 It is a definition diagram of the modeling elements of the ship target characteristic data in the implementation case of the present invention;

[0049] Figure 4 This is an analysis diagram of application scenarios in implementation cases of the present invention;

[0050] Figure 5It is the business process model in the implementation case of the present invention;

[0051] Figure 6 It is a target feature definition diagram in the implementation case of the present invention;

[0052] Figure 7 It is a target characteristic data definition diagram in the implementation case of the present invention;

[0053] Figure 8 It is the application link model in the implementation case of the present invention;

[0054] Fig. 9 A mapping diagram of application links and business processes in the implementation case of the present invention;

[0055] Fig.10 It is a constraint relationship diagram of target characteristic data and feature data in the implementation case of the present invention;

[0056] Fig.11 This is a data mapping relationship diagram in an implementation case of the present invention. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0058] The features of various aspects of the embodiments of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to fully understand the present invention. However, it is obvious to those skilled in the art that the present invention can also be implemented without these specific details. The following description of the embodiments is only for a better understanding of the present invention by illustrating examples of the present invention. The present invention is not limited to any specific settings and methods provided below, but covers all product structures, any improvements, replacements, etc. of methods covered without departing from the spirit of the present invention.

[0059] In the various drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.

[0060] The process of the method of the present invention is as follows Figure 1As shown, taking the acoustic target characteristic data in the ship target characteristic data and the ship target characteristics reflected by it as an example, a ship target characteristic data application business process modeling method based on SysML proposed by the present invention is applied. Specifically, in this implementation case, the modulation spectrum characteristic data and echo characteristic data in the acoustic target characteristic data are used to describe the method in a simple example, which mainly includes the following steps:

[0061] Step 1: Determine the modeling elements of ship target characteristic data. According to the application scope of ship target characteristic data, sort out and determine the basic concepts and elements in the application of ship target characteristic data, and build modeling elements dedicated to the field of ship target characteristic data based on SysML and integrating domain expertise, including but not limited to entities, relationships, attributes and constraints, to express the business process of ship target characteristic data application.

[0062] Specifically, the basic concepts and elements of the acoustic target characteristic data considered in the application are:

[0063] Entities include application systems, application nodes, business process activities, resource function activities, resource information, application scenarios, application links, tasks, scenario goals, conditions, actual conditions, location areas, actual location areas, environments, actual environments, resources, observation objects, target characteristics, target characteristic data, and application data. The difference between entities and "actual" entities lies in the entity definition type, and actual entities represent instances of the defined class. For example, the "environment" defines the environmental sea condition level 4 where the scenario occurs, and the "actual environment" can represent a more detailed instance of the sea condition level 4: the waves have a distinct shape, the wave height is 2 meters, and whitecaps are widely distributed on the sea surface.

[0064] Relationships include sequence, definition phases, implementations, perform, input, and output.

[0065] The attributes include the application environment, application location and application system of the application scenario, the measurement of target characteristics, the measurement of target characteristic data, the measurement of application data, and the objectives of the task.

[0066] After determining the modeling elements of the ship target characteristic data, analyze the elements included in each step of modeling and the constructed view form, and form the model view based on the system structure modeling platform. Figure 3 As shown, in the defined step 2, the modeling elements of the ship target characteristic data application scenario analysis include application scenario, application link, task, scenario target, condition, actual condition, location area, actual location area, environment, and actual environment; in the defined step 51, the ship target characteristic data application link modeling is carried out, and the modeling elements include resource function activities, resource parameters, etc.

[0067] Step 2: Analyze the application scenarios of ship target characteristic data. Figure 4 As shown in the figure, an analysis is performed on the environment and scenario of a practical application of acoustic target characteristic data. The scene is located in a certain sea area, the sea environment is sea condition level 4, and the task is to complete the identification of unknown targets in a certain sea area. In this scenario, a series of task stages need to be carried out, including target discovery in a certain sea area, data collection and analysis in a certain sea area, and research and identification in a certain sea area. The goal of target discovery in a certain sea area is to successfully discover the target when it appears; the goal of data collection and analysis in a certain sea area is to complete data collection; the goal of research and identification in a certain sea area is to complete the identification of the target's enemy, friend, type, etc.

[0068] Step 3: Develop a business process model for ship target characteristic data application. Determine the business application process of acoustic target characteristic data in the application scenario, including discovering ship targets, collecting ship target characteristic data, preprocessing characteristic data, extracting characteristic data, estimating ship target characteristics, and identifying and judging. Use the architecture modeling platform to build a SysML activity diagram model, which includes the above business process steps, such as Figure 5 As shown, the architecture simulation function of the architecture modeling platform can be used to verify the business model.

[0069] Step 4: Define ship target characteristics and target characteristic data. Sort out the concepts in the field of ship target characteristics and define them in a hierarchical manner to ensure that the concept expression of characteristic data required by the process is covered to support the standardized modeling of application business processes.

[0070] Step 41: Define ship target characteristics. Sort out the original performance characteristics of the ship target. The relevant ship target characteristics include geometric characteristics, structural characteristics, motion characteristics and environmental coupling characteristics. Geometric characteristics include length and width; structural characteristics include blade characteristics and material characteristics. Blade characteristics include the number of blades and blade shaft frequency. Material characteristics can be refined into the main material type; motion characteristics mainly describe the speed of the ship target; environmental coupling characteristics mainly consider wake characteristics. The target characteristics and their measurements are hierarchically defined and referenced through the SysM module definition diagram, such as Figure 6 shown.

[0071] Step 42: Define the ship target characteristic data. Define the core concepts and hierarchical structure of the acoustic target characteristic data required for each business activity process. The acoustic target characteristic data includes acoustic radiation characteristic data and acoustic scattering characteristic data. The acoustic radiation characteristic data of the ship includes modulation spectrum characteristic data, line spectrum characteristic data, transient signals, etc.; the acoustic scattering characteristic data includes echo characteristics, echo intensity, and echo bright spot intensity, etc. The measurements of the modulation spectrum characteristic information include the number of modulation line spectra, modulation line spectrum frequency, and modulation depth. The acoustic target characteristic data and its measurement are defined in a hierarchical manner through the SysML module definition diagram, such as Figure 7 shown.

[0072] Step 5: Sort out the application links of ship target characteristic data. Analyze the application links included in each business process, identify the target characteristic data required for each application link, and build the model according to the system architecture framework standard.

[0073] Step 51: Carry out modeling of the ship target characteristic data application process. With the goal of closing the ship target characteristic data application process loop, decompose the business process and sort out the domain concepts of the relevant process links, such as Figure 8 As shown in the figure, the SysML activity diagram is used to model each process link. The links of acoustic radiation characteristic recognition include target discovery, noise radiation, data collection, identification and extraction of noise characteristics, and estimation of target characteristics. The information transmitted between the identification and extraction of noise characteristics links and the estimation of target characteristics links includes modulation spectrum characteristic data, line spectrum characteristics, etc. Among them, the identification and extraction of noise characteristics link can be further sorted out and constructed, including preprocessing, bandpass filtering, detection and other activities, which will not be repeated here.

[0074] Step 52: Establish a mapping between the ship target characteristic data application link and the business process. According to the application links sorted out in step 51, analyze and construct the corresponding relationship between the data elements of the relevant application links and the business process in step 2, such as Fig. 9 As shown in the figure, the horizontal axis represents the application link, the vertical axis represents the business process, and the arrows represent the implementation relationship between the two. For example, application links such as low-pass filtering and power spectrum analysis are all related to the characteristic data extraction business process.

[0075] Step 6: Establish the association between the ship target characteristic data and feature data. Through the SysML parameter diagram, establish the association dependency between the target characteristic data and the basic data, and form a data mapping relationship diagram based on this, which is convenient for tracing the target characteristic model data application requirements.

[0076] Step 61: Define and establish the relationship between the ship target characteristic related data. Define the constraints between the target characteristic data and the feature data through the SysML parameter diagram, rely on analytical expressions or data lookup tables, etc., constrain the parameters, and establish the mapping relationship between the target characteristic data and the target feature data.

[0077] For example, the relationship between Doppler frequency shift and target speed is shown in equation (1).

[0078]

[0079] Among them, the choice of positive and negative signs in the formula is that when the target is close, it takes a positive sign, otherwise it takes a negative sign; c is the speed of sound in seawater, and f is the frequency of the incident wave. When the operating frequency of the active sonar is 100kHz and the speed of sound in seawater is 1500m / s.

[0080] According to the constraint relationship, the relationship between the echo characteristic data and the ship's geometric characteristics is established as follows: Fig.10 As shown in the figure, the length, number of blades, blade shaft frequency, and speed of the ship target characteristics are shown on the left, the echo characteristics and modulation spectrum characteristics of the ship target characteristic data are shown on the right, and the description of the constraint relationship between the two when extracting data is shown in the middle.

[0081] Step 62: Establish data mapping relationship.

[0082] According to the constraint relationship of ship target characteristic parameters defined in the parameter diagram, the ship target characteristic data is associated with the target characteristics to form a data mapping relationship diagram, which can trace the application requirements of the ship target characteristic data to the target characteristics. Fig.11 As shown in Figure 2, the modulation spectrum characteristic data can be traced back to the structural characteristics of the ship target. Fig.11 (a) is the ship target feature hierarchy structure, and (b) is the target characteristic data traceability relationship.

[0083] It should be noted that the above process operations can be combined and applied to different degrees. For the sake of simplicity, the implementation methods of various combinations are not described in detail. Those skilled in the art can flexibly adjust the order of the steps of the above method (or the position of the components of the product) according to actual conditions, or perform operations such as combination.

[0084] It should be noted that the functional components shown in the above embodiments may be implemented in hardware, software or a combination of both.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A SysML-based ship target characteristic data application business process modeling method, characterized in that: The steps include: Step 1: Determine the modeling elements of ship target characteristic data: According to the application scope of ship target characteristic data, sort out and determine the basic concepts in the application of ship target characteristic data, and build the modeling elements in the field of ship target characteristic data based on SysML, including entities, relationships, and attributes, to express the business process of ship target characteristic data application; Step 2: Analyze the application scenarios of ship target characteristic data: Analyze the environment and scenarios in which the ship target characteristic data is actually applied, and describe the sea environment, targets, and the order of tasks performed by ships when the ship target characteristic data is used; Step 3: Develop a business process model for ship target characteristic data application: Sort out the business application process of target characteristic data in the application scenario, establish the SysML activity diagram of the business application process according to the system architecture framework standard, and verify the model through simulation; Step 4: Define ship target characteristics and target characteristic data: Sort out the concepts in the field of ship target characteristics and define them in a hierarchical manner to ensure that the concept expression of characteristic data required by the coverage process is supported to support the standardized modeling of application business processes: Step 5: Sort out the application links of ship target characteristic data: Analyze the application links included in each business process, identify the target characteristic data required for each application link, and build the model according to the system architecture framework standard; Step 6: Establish the association relationship between ship target characteristic data and feature data: Through the SysML parameter diagram, establish the association dependency relationship between the target characteristic data and the basic data, and form a data mapping relationship diagram based on this, so as to facilitate the tracing of target characteristic model data application requirements.

2. The method according to claim 1, characterized in that: In step 4, the specific operations for the ship target are as follows: Step 41: Define ship target characteristics: sort out the original performance characteristics of the ship target, classify the original performance characteristics, and use the SysML model to describe and express them in a standardized manner; Step 42: Define ship target characteristic data: Analyze the core concepts and hierarchical structure of the ship target characteristic data required to be applied in each business activity process, sort out the target characteristic data, and use the SysML model for standardized description and expression.

3. The method according to claim 1, characterized in that: In step 5, the specific operations of building a model for the ship target are as follows: Step 51: Modeling the ship target characteristic data application process: With the ship target characteristic data application process closed loop as the goal, decompose the business process, sort out the domain concepts of the process links, and model each process link for the ship target; Use SysML activity diagrams to analyze the application requirements of each process link for target characteristic data, and clarify the information exchange relationship between business activities and business elements; Step 52, establish a mapping between the ship target characteristic data application link and the business process: analyze and construct the corresponding relationship between the data of the relevant application link and the business process to represent the application link included in the business process.

4. The method according to claim 1, characterized in that: The specific operations of step 6 are as follows: Step 61, define and establish the relationship between the ship target characteristic related data: define the target characteristic data and characteristic data constraints through the SysML parameter diagram, constrain the relationship between each parameter, and establish the association relationship between the ship target characteristic data and the characteristic data; Step 62, establish data mapping relationship: according to the constraint relationship of ship target characteristic parameters defined in the parameter diagram, form a data mapping relationship diagram to ensure the integrity and traceability of ship target characteristic data application requirements.

5. The method according to claim 1, characterized in that: For ship targets, the entities include application systems, application nodes, business process activities, resource function activities, resource information, application scenarios, application links, tasks, scenario targets, conditions, location areas, environments, resources, observation objects, target characteristics, target characteristic data, and application data; The relationships include sequence, definition phase, own, realize, execute, influence, input, output, and association; The attributes include the application environment, application location and application system of the application scenario, the measurement of target characteristics, the measurement of target characteristic data, the measurement of application data, and the goal of the task. When analyzing the application scenarios of ship target characteristic data, the elements involved are application scenarios, scenario objectives, and tasks; The relationships involved include the sequential relationships between task phases, the allocated phase relationships between scenario goals and task phases; The attributes involved include the attributes of the application scenario: application environment and application location, etc.

6. The method according to claim 5, characterized in that: The order relationship refers to a modeling element before another modeling element in the time range; the allocation phase relationship refers to a scenario goal being assigned to a task; the ownership relationship refers to a modeling element containing another modeling element; the realization relationship refers to how a modeling element of a higher level of abstraction is realized by a modeling element of a lower level of abstraction; the execution relationship refers to the traceability relationship between a modeling element and the activities they can perform; The influence relationship is used to indicate that one modeling element is affected by another modeling element; the input relationship and output relationship respectively indicate that one modeling element is the input or output of another modeling element; the association relationship means that one relationship has a direct or indirect connection with another modeling element.

7. The method according to claim 5, characterized in that: The application environment attribute describes the environment in the application scenario; the application location attribute describes the location area of ​​the sea area.

8. The method according to claim 1, characterized in that: For ship targets, the business process described in step 3 includes discovering ship targets, collecting ship target feature data, preprocessing feature data, extracting characteristic data, estimating ship target features, and analyzing and identifying them.

9. The method according to claim 1, characterized in that: For the ship target, the ship target features in step 41 include geometric features, structural features, motion features and environmental coupling features; Geometric features include length, width, shape and outline; Structural features include blade features, material features, key equipment, etc. Blade features include the number of blades and blade shaft frequency; Material features can be refined into main material type and material distribution; The motion characteristics describe the speed of the ship target, including speed, distance, and heading; The environmental coupling feature takes into account the wake characteristics; Environmental coupling characteristics include wake characteristics and infrared characteristics.

10. The method according to claim 2, characterized in that: The ship target characteristic data in step 42 includes optical target characteristic data, acoustic target characteristic data, electromagnetic target characteristic data, and infrared target characteristic data; The acoustic target characteristic data includes acoustic radiation characteristic data and acoustic scattering characteristic data; For ship targets, the acoustic radiation characteristic data includes modulation spectrum characteristic data, line spectrum characteristic data, transient signals, time-frequency distribution characteristics, azimuth change rate, and broadband characteristics; the acoustic scattering characteristic data includes echo characteristics, echo intensity, and echo bright spot intensity, etc.; the measurements of modulation spectrum characteristic data include the number of modulation line spectra, modulation line spectrum frequency, and modulation depth; when defining ship target characteristic data, the measurement of target characteristics needs to be determined.

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