Integrated radio frequency system model based on meta-model and integrated radio frequency system design method

Abstract

The application belongs to the field of comprehensive radio frequency system, and particularly relates to a comprehensive radio frequency system model based on a meta model and a comprehensive radio frequency system design method, the system model comprising: a concept model, a logic model and a data model; the concept model comprising a use case model and a composition model; the use case model being used to describe a top layer operation architecture and a system boundary of the system, and being described by a use case diagram of a SysML language; the composition model being used to describe a concept composition relationship of the system, and being described by a block definition diagram of the SysML language; the logic model comprising activities and interfaces; the activities being basic elements for describing behaviors of the system, and being described by an activity diagram of the SysML language; the interfaces being basic elements for describing elements transmitted externally by different forms, and being described by an internal block diagram of the SysML language; the data model comprising system form elements and physical data; the system form elements being basic elements for instantiating concept of the system, and being described by a block definition diagram of the SysML language; and the physical data being basic elements for describing interactions between systems, and being described by an internal block diagram of the SysML language.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of integrated radio frequency system, and particularly relates to an integrated radio frequency system model based on a meta-model and a design method of the integrated radio frequency system. BACKGROUND

[0002] The meta-model is a model of model, and the system architecture constructed by using the meta-model can solve the consistency of product data, and the meta-model is usually based on the classic metadata architecture, and the four-layer meta-model is the language architecture of UML formulated by the OMG organization.

[0003] The information layer is composed of data that we hope to describe, and the data is usually some user data, and the main responsibility is to describe the detailed information of the information field.

[0004] The model layer is composed of metadata, the metadata is the data for describing the information layer, and the collection of metadata is called a model.

[0005] The main responsibility of the model is to define an "abstract language" for describing the information layer, and the data of the information layer, i.e., the user data is an instance of the model layer.

[0006] The meta-model layer is composed of meta-metadata, the meta-metadata defines the structure and semantics of the metadata, and the collection of meta-metadata is called a meta-model.

[0007] The main functions of the airborne radio frequency system include different electromagnetic functions such as detection, jamming, exploration and communication, and with the improvement of the degree of equipment integration, the general resource reuse is difficult to greatly improve the system design, and the integrated radio frequency system requires to break the independence between different functions, and the functions are gradually coupled at the signal level, the information level and the resource reuse level, so that the overall optimization of the system is realized, but the coupling of the functions overturns the linear design process of the functions of the previous integrated radio frequency system through aperture processing, radio frequency processing, signal processing and information processing, and greatly increases the design difficulty of the system. SUMMARY

[0008] The purpose of the application is to provide an integrated radio frequency system model based on a meta-model and a design method of the integrated radio frequency system, realize the system architecture design of the integrated radio frequency system, face the airborne radio frequency function, carry out the system architecture characterization research based on the meta-model, realize the meta-model description and data model design of the electromagnetic dimension task, function and physical resource, realize the definition of the logical and interface relationship of the system task, function and physical resource, and establish the corresponding digital architecture model.

[0009] The technical scheme of the application is as follows:

[0010] A meta-model based integrated radio frequency system model, comprising: a concept model, a logic model and a data model;

[0011] The concept model comprises a use case model and a composition model; the use case model is used to describe a top-level operation architecture and system boundary of the system, and is described by a use case diagram of a SysML language; the composition model is used to describe a conceptual composition relationship of the system, and is described by a block definition diagram of the SysML language;

[0012] The logic model comprises activities and interfaces; the activities are basic elements for describing behaviors of the system, and are described by an activity diagram of the SysML language; the interfaces are basic elements for describing elements transmitted externally by different forms, and are described by an internal block diagram of the SysML language;

[0013] The data model comprises system form elements and physical data; the system form elements are basic elements for instantiating the system concept, and are described by a block definition diagram of the SysML language; the physical data are basic elements for describing interactions between systems, and are described by an internal block diagram of the SysML language.

[0014] Further, the use case model of the integrated radio frequency system comprises five first-level use cases of reconnaissance, jamming, detection, communication and management;

[0015] The reconnaissance comprises three second-level use cases of passive positioning, passive detection and radar warning;

[0016] The jamming comprises two second-level use cases of active jamming and passive jamming;

[0017] The detection comprises four second-level use cases of radar detection, infrared detection, photoelectric detection and platform internal cooperative detection;

[0018] The communication comprises five second-level use cases of data link communication, voice communication, navigation, identification and flexible networking;

[0019] The management comprises three second-level use cases of system management, sensor management and task management.

[0020] Further, the composition model of the integrated radio frequency system comprises a first-level skin integrated processing system and a second-level integrated processing system, wherein the first-level skin integrated processing system comprises a skin front-end unit, a radio frequency unit and a radio frequency signal preprocessing unit, and the second-level integrated processing system comprises a network switching unit, a logic processing unit and a heterogeneous computing unit.

[0021] Further, the activities comprise multiple element types of basic actions, object flows, control flows, pegs, decision nodes, merging nodes, branching nodes, collection nodes and calling behaviors.

[0022] Further, the interface includes: a standard interface and a stream interface; the standard interface is used to characterize the signal and information trigger type interaction of the integrated radio frequency system, and the stream interface is used to characterize the system power continuous type interaction.

[0023] Further, the form element includes: a first skin integrated processing system, a second integrated processing system skin front end unit, a radio frequency unit, a radio frequency signal preprocessing unit, a network exchange unit, a logic processing unit, and a basic element of a heterogeneous computing unit system concept instantiation.

[0024] The physical data includes: a system waveform parameter table, a pulse description word, and formatted data of communication signal format system interaction.

[0025] An integrated radio frequency system design method based on a meta-model, based on the integrated radio frequency system model implementation, including the following steps:

[0026] Step one: perform requirement analysis, extract the use case of the system, and construct the corresponding system function framework according to the corresponding use case in the use case diagram by applying the use case model;

[0027] Step two: perform function analysis, convert the system requirements generated by the requirement analysis into activities, and drive each secondary use case with a use case, and generate an executable state machine model, which is self-verified by execution;

[0028] Step three: perform physical analysis, allocate the activities generated in step two to the form elements in the system architecture through system architecture division, so as to realize port / interface allocation, attribute / parameter allocation, and refine physical data in the allocation process.

[0029] Further, in step one, the specific process is as follows:

[0030] 1) Analyze and decompose the received user requirements, convert the user requirements into understandable, designable, and unambiguous system requirements, and link the system requirements to the user requirements to ensure that the user requirements are fully traced;

[0031] 2) Define system use cases based on user requirements and OpsCon, preliminarily set external participants of system use cases according to operation concept, and through <association>Relationships are associated with use cases;

[0032] 3) System requirements are established with system use cases <trace>Correlation relationship

[0033] 4) Establish the correlation relationship between use cases, set two levels according to the complexity of the system, and use <contain>The upper use case contains the lower use case in relation.

[0034] Further, in step two, the specific process is as follows:

[0035] 1) Through the detailed analysis of the specific use case, the general operation scene of the function described by the use case is combed, the external participants and the interaction behaviors with the participants are supplemented, and the operation scene of the system under the use case is defined;

[0036] 2) The function flow of the system is constructed according to the operation logic of the use case through activities, and the operation flow of the system is described through a SysML activity diagram;

[0037] 3) The external port and the internal port of the function flow of the external interaction of the system and the cross-swim lane interaction of the system are defined in the activity diagram, the port type is defined as a standard port or a flow port according to the form of the interaction content, and the corresponding interface is defined through the calling interface meta-model according to the interaction content in the port;

[0038] 4) According to the activity diagram and the port and interface definition, the use case runtime sequence is defined under the normal operation scene, and is uniformly described in a SysML timing diagram;

[0039] 5) Through model execution, the running results of the running sequence and the running interface are compared with the model constraint results, and the model modeling logic is verified to be feasible and implementable.

[0040] Further, in step three, the specific process is as follows: defining the use case context and defining the use case scene, through the detailed analysis of the specific use case, the general operation scene of the function described by the use case is combed, the external participants and the interaction behaviors with the participants are supplemented, and the operation scene of the system under the use case is defined.

[0041] The beneficial effects of the present application are:

[0042] The comprehensive radio frequency system in different fields can carry out the system architecture design of the comprehensive radio frequency system based on the present application, the model elements suitable for the field are defined through the model description in the present application, the system architecture model construction of the comprehensive radio frequency system can be carried out through the method of the present application, the design efficiency is improved, and the system cognition is unified. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 The diagram is defined for the system architecture model composition;

[0044] Figure 2 The diagram is a system interference use case model;

[0045] Figure 3 The diagram is a system composition model;

[0046] Figure 4 Figure 9 is a clock calibration and FC processing activity model diagram;

[0047] Figure 5 Figure 10 is an interface model diagram;

[0048] Figure 6 Figure 11 is a form element model diagram;

[0049] Figure 7 Figure 12 is a pulse description word physical data model diagram;

[0050] Figure 8 Figure 13 is a requirements analysis process flow diagram;

[0051] Figure 9 Figure 14 is a functional analysis process flow diagram;

[0052] Figure 10 Figure 15 is a physical analysis process flow diagram;

[0053] Figure 11 Figure 16 is a comprehensive radio system navigation use case diagram;

[0054] Figure 12 Figure 17 is a comprehensive radio system ADF requirements diagram;

[0055] Figure 13 Figure 18 is a comprehensive radio system ADF activity diagram;

[0056] Figure 14 Figure 19 is an ADF use case and pilot interface diagram;

[0057] Figure 15 Figure 20 is a comprehensive radio system ADF timing diagram;

[0058] Figure 16 Figure 21 is an ADF use case allocation activity diagram;

[0059] Figure 17 Figure 22 is a comprehensive radio system IBD diagram;

[0060] Figure 18 Figure 23 is an ADF function to comprehensive radio system port interface allocation diagram;

[0061] Figure 19 Figure 24 is an ADF use case state machine diagram. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0063] The application provides a meta-model definition for system architecture design, and realizes architecture model construction of an integrated comprehensive radio frequency system based on the meta-model.

[0064] The application mainly includes data division of system architecture, meta-model definition and original model examples in the integrated comprehensive radio frequency system.

[0065] The technical scheme of the application is:

[0066] An architecture data division for system element objects, the system is a collection of elements and relationships between the elements, and the system architecture as a description of the system should include the following content description:

[0067] Top-level organization concept of the system, including behavioral composition and element composition

[0068] Organizational composition of the system, structural elements of the system and interfaces between them and behaviors embodied when these elements cooperate with each other.

[0069] How to organize these elements to gradually integrate them into better subsystems.

[0070] According to the system architecture data requirements, the system architecture model is divided into a conceptual model, a logical model and a data model. The conceptual model includes a use case model and a composition model, the logical model includes activities and interfaces, and the data model includes system form elements and physical data. As shown in Figure 1

[0071] 1. Meta-model definition

[0072] 1) Use case model

[0073] The use case model is used to describe the top-level running architecture of the system and the system boundary, and is described by using the use case diagram of the SysML language. The use case model of the integrated comprehensive radio frequency system is as shown in Figure 2

[0074] The use case diagram of the integrated comprehensive radio frequency system includes:

[0075] 2) Composition model

[0076] The composition model is used to describe the conceptual composition relationship of the system, and is described by using the block definition diagram of the SysML language. The composition model of the integrated comprehensive radio frequency system is as shown in Figure 3

[0077] The block definition diagram of the integrated comprehensive radio frequency system includes a first-level (skin) comprehensive processing system and a second-level comprehensive processing system, wherein the first-level (skin) comprehensive processing system includes a skin front-end unit, a radio frequency unit and a radio frequency signal preprocessing unit, and the second-level comprehensive processing system includes a network switching unit, a logic processing unit and a heterogeneous computing unit ​​​

[0078] 3) Activity

[0079] Activity is the basic element to describe system behavior, including basic action, object flow, control flow, pin, decision node, merge node, branch node, collection node, call behavior, various element types, described by SysML language activity diagram, integrated comprehensive radio frequency system activity elements are as shown in Figure 4

[0080] 4) Interface

[0081] Interface is the basic element to describe the external transmission of different forms of elements, including standard interface and flow interface, described by SysML language internal block diagram, integrated comprehensive radio frequency system interface elements are as shown in Figure 5

[0082] 5) Form element

[0083] System form element is the basic element to instantiate system concept, including system composition element, described by SysML language block definition diagram, integrated comprehensive radio frequency system form elements are as shown in Figure 6

[0084] 6) Physical data

[0085] Physical data is the basic element to describe the interaction between systems, described by SysML language block definition diagram, integrated comprehensive radio frequency physical data are as shown in Figure 7

[0086] This method follows the R (requirement) -F (function) -L (logic) -P (physical) framework of system engineering to build the system architecture of integrated radio frequency system, and is an iterative process of cycle-> feedback-> iteration through model-based system design process. Especially in the use case analysis process, we need to consider the case when an engineering has a large number of use cases. The development process does not change, but the engineering architecture changes, and the new engineering structure supports team collaboration. Each use case can be carefully divided into multiple parts and then combined into a system model. The entire architecture modeling process is logically divided into three processes: requirement analysis, function analysis, and physical analysis.

[0087] 1、Requirement analysis process

[0088] The main goal of the requirement analysis process is to refine the top-level operational concept of the system. By analyzing the requirements, the atomic functions of the system are extracted, and the corresponding atomic functions are used to build the system function framework and describe the system boundary in the use case model according to the use case model. The specific analysis process is as shown in Figure 8

[0089] Requirement analysis process flow: ​​​​​

[0090] 1) Analysis / refinement of system requirements, analysis and decomposition of accepted user requirements, transformation of user requirements into understandable, designable, unambiguous system requirements, and linking of system requirements to user requirements, ensuring that user requirements are fully traceable.

[0091] 2) Definition of system use cases, definition of system use cases based on user requirements and OpsCon (operational concept), preliminary setting of external participants of system use cases according to the operational concept, and determination of system use cases by <association>Relationships are associated with use cases.

[0092] 3) Link functional / performance requirements to system use cases, establish functional / performance requirements of system requirements with system use cases <trace>Correlation relationship.

[0093] 4) Organize system use cases, establish correlation relationship between use cases, set two levels according to system complexity, use <contain>The upper layer use case contains the lower layer use case.

[0094] 2. Functional analysis process

[0095] The main goal of the system functional analysis process is to transform the functional system requirements generated in the requirement analysis phase into a more accurate system description. The process is driven by use cases, each of which is analyzed and generates an executable model that is self-verified through execution. The specific process is shown in Figure 9 .

[0096] Functional analysis process flow:

[0097] 1) Define the use case context and define the use case scenario. Through detailed analysis of specific use cases, the general operating scenario of the use case is sorted out, the external participants involved in the use case and the interaction behavior with the participants are refined and supplemented, and the operating scenario of the system under the use case is defined.

[0098] 2) According to the use case scenario, build the functional flow by calling the meta-model. According to the use case running logic, build the system functional flow by calling the logic meta-model, and describe the system running process through the SysML activity diagram.

[0099] 3) Define the port and interface. In the activity diagram, define the external port and internal port of the system external interaction and system cross-lane interaction, and define the port type as standard port or flow port according to the form of interaction content. In the port, define the corresponding interface by calling the interface meta-model according to the interaction content.

[0100] 4) Define the use case runtime sequence. According to the activity diagram and port, interface definition, define the use case runtime sequence under normal operating scenario, and describe it uniformly in SysML timing diagram.

[0101] 5) Verify the use case model through model execution. Through model execution, compare the running results of runtime sequence and running interface with the model constraint results, and verify the feasibility and realizability of the model modeling logic.

[0102] 3. Physical analysis process

[0103] The goal of the physical analysis process is to develop the system physical architecture, which needs to meet the performance requirements and ensure the realization of system functional requirements. The physical analysis process realizes the development and design of physical architecture by system architecture division, port / interface allocation, attribute / parameter allocation, and verification of model requirement integrity. The specific process is shown in Figure 10 .

[0104] Physical analysis process flow:

[0105] 1) Define use case context and define use case scenario, through the detailed analysis of specific use case, according to the general operation scene of the function described by use case, comb the scene, supplement the external participants and the interaction behavior with the participants, define the running scene of the system under the use case.

[0106] Embodiment

[0107] Because the integrated radio frequency system has many functions, but the design process of each function architecture is similar, here takes the compass navigation as an example to show the design process based on the meta model, the system architecture design of other functions is similar.

[0108] 1, requirement analysis process

[0109] 1) Use case division and definition

[0110] In this case, the compass navigation belongs to the radio navigation function of the integrated radio frequency, based on the function boundary of the airborne integrated radio frequency system radio navigation function, the system use case of the radio navigation function set is defined, the system boundary and the system context interaction are preliminarily identified, the navigation use case is preliminarily defined through use case decomposition / combination and the connection relationship of system context, the airborne radio navigation function can be divided into near earth warning, radio height, radio compass, tacan, satellite, pointing beacon, instrument landing, microwave landing, precision ranging and other functions according to the function, each function is decoupled, so the use case is divided according to the related function, such as Figure 11 As shown.

[0111] 2) Linking requirements to system use cases

[0112] Extract the function performance requirements related to ADF function, link these requirements to system use cases <trace>Correlation, such as Figure 12 is shown.

[0113] 2. Functional analysis process

[0114] 1) Use case function decomposition

[0115] The system operation flow of the ADF use case is decomposed, the specific activities that the integrated radio frequency system needs to perform when executing the ADF function are analyzed, and the interaction with the system context in the execution of these activities is identified, as shown in Figure 13 .

[0116] 2) Define system port interface

[0117] According to the division of the ADF function activity diagram, the interaction port and interface with the system context in the activity execution are sorted out, and the external interface and internal interface are established in the interaction port according to the event type. As shown in Figure 14 .

[0118] 3) Define use case allocation timing

[0119] According to the activity diagram flow, the timing allocation of system operation is sorted out, the running order of internal and external interaction and system internal running activity is defined, and the form of lifeline is adopted to express, through the tool to carry out activity diagram simulation, compare with the self running allocation timing, verify the system running logic. As shown in Figure 15 .

[0120] 1. Physical analysis process.

[0121] 1) System architecture design

[0122] According to the logical architecture of the system, the system architecture is decomposed, and in this case, the aircraft system is decomposed into aircraft structure, power system, cockpit system, flight management system, task system, radio frequency system, weapon system several parts.

[0123] 2) System allocation design

[0124] According to the above system allocation, the system activities are allocated to different parts of the system, as shown in Figure 16 .

[0125] 3) Port interface allocation design

[0126] According to the activity allocation result, the system port and interface are sorted out and allocated, and the allocation result of the integrated radio frequency system is shown in Figure 17 and 18 .

[0127] 4) State machine design and logic self-verification design

[0128] According to the above design elements, the system state machine design is carried out, and the state machine of the integrated radio frequency system is Figure 19 The running state machine is used to verify the system design logic.

[0129] The above is only a specific embodiment of the present application, which is described in detail. The part not described in detail is the conventional technology. However, the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.< / trace> < / contain> < / trace> < / association> < / contain> < / trace> < / association>

Claims

1. A meta-model based integrated radio frequency system model, characterized by: The system model comprises a concept model, a logic model and a data model; The concept model comprises a use case model and a composition model; the use case model is used to describe a top-level operation architecture and a system boundary of the system, and is described by a use case diagram of a SysML language; the composition model is used to describe a concept composition relationship of the system, and is described by a block definition diagram of the SysML language; the composition model comprises a first-level skin integrated processing system and a second-level integrated processing system, wherein the first-level skin integrated processing system comprises a skin front-end unit, a radio frequency unit and a radio frequency signal preprocessing unit, and the second-level integrated processing system comprises a network switching unit, a logic processing unit and a heterogeneous computing unit; The logic model comprises activities and interfaces; the activities are basic elements for describing behaviors of the system, and are described by an activity diagram of the SysML language; the interfaces are basic elements for describing elements transmitted externally by different forms, and are described by an internal block diagram of the SysML language; The data model comprises system form elements and physical data; the system form elements are basic elements for instantiating a concept of the system, and are described by a block definition diagram of the SysML language; the physical data are basic elements for describing interactions between systems, and are described by an internal block diagram of the SysML language.

2. The integrated radio frequency system model of claim 1, wherein: The use case model of the integrated radio frequency system comprises five first-level use cases of reconnaissance, interference, detection, communication and management; The reconnaissance comprises three second-level use cases of passive positioning, passive detection and radar warning; The interference comprises two second-level use cases of active interference and passive interference; The detection comprises four second-level use cases of radar detection, infrared detection, photoelectric detection and platform-in coordination detection; The communication comprises five second-level use cases of data link communication, voice communication, navigation, identification and flexible networking; The management comprises three second-level use cases of system management, sensor management and task management.

3. The integrated radio frequency system model of claim 2, wherein: The activities comprise various element types of basic actions, object flows, control flows, pegs, decision nodes, merging nodes, branching nodes, collection nodes and calling behaviors.

4. The integrated radio frequency system model of claim 2, wherein: The interfaces comprise: standard interfaces and flow interfaces; The standard interfaces are used to represent signal and information trigger type interactions of the integrated radio frequency system, and the flow interfaces are used to represent system power continuous type interactions.

5. The integrated radio frequency system model of claim 4, wherein: The form elements comprise basic elements for instantiating a concept of a first-level skin integrated processing system, a second-level integrated processing system, a skin front-end unit, a radio frequency unit, a radio frequency signal preprocessing unit, a network switching unit, a logic processing unit and a heterogeneous computing unit system. The physical data comprise formatted data of system waveform parameter tables, pulse description words and communication signal formats system interactions.

6. A meta-model based integrated radio system design method, implemented based on the integrated radio system model of any of claims 1-5, characterized by: The method comprises the following steps: Step one: performing requirement analysis, extracting use cases of the system, and constructing a corresponding system function framework according to the use case model in a use case diagram; Step two: performing function analysis, converting system requirements generated in the requirement analysis into activities, driving by use cases, each second-level use case is analyzed, and an executable state machine model is generated, the state machine model is self-verified by execution; Step three: performing physical analysis, allocating the activities generated in step two to form elements in a system architecture, so as to realize port / interface allocation, attribute / parameter allocation, and to refine physical data in the allocation process.

7. The method of claim 6, wherein: In step one, the specific process is as follows: 1) Analyze and decompose the received user requirements, convert the user requirements into understandable, designable, and unambiguous system requirements, and link the system requirements to the user requirements to ensure that the user requirements are fully traced; 2) Based on user requirements and OpsCon, define system use cases, set up the external participants of system use cases initially according to the operation concept, and through <association>Relationships and use cases are associated;< / association> 3) Establish system requirements from system use cases <trace>Association relationship;< / trace> 4) Establish the association between use cases, set two levels according to the complexity of the system, use different levels of use cases <contain>Relationship association, the upper layer use case contains the lower layer use case.< / contain> 8. The method of claim 7, wherein: In step two, the specific process is as follows: 1) Through detailed analysis of specific use cases, sort out the general running scene of the function described by the use case, supplement the external participants involved in the use case and the interaction behavior with the participants, and define the running scene of the system under the use case; 2) According to the running logic of the use case, build the function flow of the system through activities, and describe the running process of the system through the SysML activity diagram; 3) In the activity diagram, define the external port and internal port of the function flow of the external interaction of the system and the cross-swim lane interaction of the system, define the port type as a standard port or a flow port according to the form of the interaction content, and define the corresponding interface in the port according to the interaction content by calling the interface meta-model; 4) According to the activity diagram and the definition of the port and the interface, define the running sequence of the use case under the normal running scene, and describe it uniformly in the SysML timing diagram; 5) Through model execution, compare the running results of the running sequence and the running interface with the model constraint results, and verify the feasibility and realizability of the modeling logic of the model.

9. The method of claim 8, wherein: In step three, the specific process is as follows: define the use case context and define the use case scene, through detailed analysis of specific use cases, sort out the general running scene of the function described by the use case, supplement the external participants involved in the use case and the interaction behavior with the participants, and define the running scene of the system under the use case.

Images