Helicopter model demand confirmation and verification method

Abstract

The invention provides a helicopter model demand confirmation and verification method, and the method comprises the following steps: taking a helicopter model task scene as the input, and carrying out the modeling analysis of the helicopter model demand; carrying out system demand definition based on a helicopter model demand model; defining a demand confirmation plan for the defined demand, and carrying out demand confirmation; after demand confirmation is completed, a demand confirmation matrix is defined based on the demand confirmation plan, and confirmation evaluation is completed; defining a demand verification plan for system demands, and carrying out demand verification; after the demand verification is completed, a demand verification matrix is defined based on the demand verification plan, and verification evaluation is completed; according to the method and the device, the problem of inconsistent document-based full-chain demand data transmission and the problem of insufficient demand confirmation and verification of each level in the prior art are solved.

Description

Technical Field

[0001] The present application belongs to the field of helicopter system engineering technology, and in particular, relates to a method for confirming and verifying helicopter model requirements. Background Art

[0002] The confirmation and verification of helicopter model requirements is an important task to ensure the conformity and correctness of model development. Combining international advanced system engineering theory with the helicopter model development process, this paper proposes an engineering method and process for positive helicopter requirement confirmation and verification, which provides a method for the correctness and conformity of requirements in the development process of complex products, further promotes and improves the quality of demand design, and also provides a guarantee for the successful development of complex products. Summary of the invention

[0003] Purpose of the invention: To solve the problem of inconsistent data transmission of the entire chain of traditional document-based requirements and the problem of insufficient confirmation and verification of requirements at all levels.

[0004] The present application provides a method for confirming and verifying helicopter model requirements, the method comprising the following steps:

[0005] Conduct helicopter model demand modeling analysis using helicopter model mission scenarios as input;

[0006] Define system requirements based on the helicopter model requirement model;

[0007] Define the demand confirmation plan and carry out demand confirmation for the defined requirements;

[0008] After completing the demand confirmation, define the demand confirmation matrix based on the demand confirmation plan and complete the confirmation evaluation;

[0009] Define the requirements verification plan and carry out requirements verification according to system requirements;

[0010] After completing the requirements verification, define the requirements verification matrix based on the requirements verification plan and complete the verification evaluation.

[0011] Preferably, the helicopter model demand modeling analysis includes:

[0012] Aiming at the typical mission scenarios of helicopter models, a model-based system engineering approach is adopted to carry out demand modeling and analysis of helicopter models.

[0013] Preferably, the modeling and analysis process needs to include three steps: scenario timing process modeling and analysis, scenario activity flow modeling and analysis, and activity-function list definition.

[0014] Preferably, the scene time sequence process modeling and analysis is to analyze the scene process from the dimension of time sequence and construct a scene time sequence model;

[0015] Scenario activity process modeling analysis is to analyze the scenario process from the dimension of process activities and build a scenario activity model;

[0016] Finally, activities for all typical scenarios are summarized, transformed into a functional list of helicopter models, and an activity-function mapping matrix model is established.

[0017] Preferably, the model-based helicopter model requirement definition includes:

[0018] Conduct functional analysis based on the functional list formed by the analysis;

[0019] Form interface requirements based on functional logic definitions;

[0020] Conduct design analysis and define performance indicators based on the functions of the helicopter model;

[0021] Conduct design analysis based on the characteristics of the helicopter model;

[0022] Finally, all categories of requirements are standardized and itemized to form a system requirement set.

[0023] Preferably, the characteristics of the helicopter model include: reliability, testability, maintainability, safety, security, protection, environmental adaptability, and electromagnetic adaptability of the helicopter model.

[0024] Preferably, conducting helicopter model requirement confirmation includes two steps: defining a requirement confirmation plan and conducting a requirement confirmation assessment.

[0025] Preferably, conducting helicopter model requirement verification includes two steps: defining a requirement verification plan and conducting a requirement verification assessment.

[0026] Beneficial technical effects of this application:

[0027] A helicopter model confirmation and verification method proposed in the present invention is based on the system engineering theory of models and integrates the helicopter model development process. Based on the helicopter model practice, it innovatively proposes a modeling and structured engineering method covering the whole chain of "requirements analysis-requirements definition-requirements confirmation-requirements verification", which solves the problems of inconsistent data transmission of the whole chain of traditional document-based requirements and insufficient confirmation and verification of requirements at all levels, effectively promotes the compliance and correctness of helicopter model requirements, and provides a standardized and efficient engineering method for model development. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a flow chart of a method for confirming and verifying helicopter model requirements provided by an embodiment of the present application;

[0029] Figure 2It is a schematic diagram of the modeling and analysis process provided in the embodiment of the present application;

[0030] Figure 3 It is a schematic diagram of the model-based helicopter model requirement definition provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] The present invention proposes an engineering method for helicopter model requirement confirmation and verification, which is applicable to the confirmation and verification of various types of requirements such as functional requirements, interface requirements, delivery requirements, design constraints, performance, reliability, testability, maintainability, safety, security, protection, environmental adaptability, and electromagnetic adaptability in model development, and realizes the standardization of requirement confirmation and verification in the development of traditional complex products. Through this process method, the correctness and compliance of the requirements of each level of helicopter model PBS can be achieved and ensured, and the development quality can be improved.

[0032] The present invention belongs to the technical field of helicopter system engineering, and relates to a method for positively carrying out demand confirmation and demand verification in the system engineering process of large and complex products such as helicopters. It can also be widely used in the system engineering of other large and complex products (such as aerospace, ships, weapons, automobiles, etc.).

[0033] See also Figure 1-Figure 3 The present application provides an engineering method for confirming and verifying helicopter model requirements, comprising the following steps:

[0034] 1) Taking helicopter model mission scenarios as input, conduct helicopter model demand modeling analysis;

[0035] 2) Define system requirements based on the helicopter model requirement model;

[0036] 3) Define the demand confirmation plan and carry out demand confirmation for the defined requirements;

[0037] 4) After completing the demand confirmation, define the demand confirmation matrix based on the demand confirmation plan and complete the confirmation evaluation;

[0038] 4) Define the requirements verification plan and carry out requirements verification according to system requirements;

[0039] 5) After completing the requirements verification, define the requirements verification matrix based on the requirements verification plan and complete the verification evaluation.

[0040] The above engineering method for requirement confirmation and verification is applicable to the various levels of PBS requirements of helicopter models and the implementation of various types of requirement confirmation and verification work.

[0041] It should be noted that the present application provides a requirement modeling and analysis method for helicopter model mission scenarios; a requirement definition method based on a helicopter model requirement model; and a general structured requirement confirmation and verification engineering method.

[0042] In other embodiments of the present application, the specific implementation of the present invention is as follows:

[0043] 1. Helicopter model demand modeling analysis

[0044] Aiming at the typical mission scenarios of helicopter models, a model-based system engineering method is used to carry out the demand modeling analysis of helicopter models. The modeling and analysis process is as follows: Figure 2 As shown in the figure, it mainly includes three steps: scenario time sequence process modeling analysis, scenario activity process modeling analysis, and activity-function list definition. The scenario time sequence process modeling analysis mainly analyzes the scenario process from the dimension of time sequence and constructs the scenario time sequence model; the scenario activity process modeling analysis mainly analyzes the scenario process from the dimension of process activity and constructs the scenario activity model; finally, the activities of all typical scenarios are summarized, transformed into a function list of helicopter models, and an activity-function mapping matrix model is established. Through the above three steps, the modeling analysis and transformation of helicopter model mission scenarios to functional requirements are completed.

[0045] 2. Model-based definition of helicopter model requirements

[0046] Conduct functional analysis based on the functional list formed by the analysis. Define interface requirements based on functional logic. Conduct design analysis and define performance indicators for the functions of helicopter models. Conduct design analysis based on the professional characteristics of helicopter models such as reliability, testability, maintainability, safety, security, protection, environmental adaptability, and electromagnetic adaptability. Finally, standardize and define all categories of requirements to form a system requirement set. The entire definition process is as follows: Figure 3 shown.

[0047] 3. Conduct helicopter model requirements confirmation

[0048] Requirements confirmation is a phased process that is continuously carried out during the helicopter development cycle. The system requirements must be confirmed at each development stage of the helicopter model to ensure the correctness and completeness of the requirements, thereby reducing the need for subsequent redesign or insufficient system performance. Helicopter model requirements confirmation includes two steps: defining the requirements confirmation plan and conducting requirements confirmation evaluation.

[0049] a) Define the requirements confirmation plan

[0050] In order to meet the needs of demand confirmation engineering activities at various stages and adapt to various demand confirmation methods such as traceability, analysis, modeling, testing, similarity and engineering review, a structured form-based approach is adopted to define the helicopter model demand confirmation plan. Combined with the practical design of helicopter models, a general demand confirmation plan form is formed. The style is shown in Table 1.

[0051] Table 1 Requirements confirmation plan form template

[0052]

[0053] b) Conduct a needs validation assessment

[0054] Based on the above-mentioned form-based demand confirmation method, a quantitative assessment of the overall confirmation of helicopter model requirements can be made. By counting the confirmation conclusions of each requirement, the total number of requirements with a confirmation conclusion of "passed" divided by the total number of requirements to be confirmed, the overall demand confirmation pass rate of helicopter model requirements can be obtained. For requirements that have not passed the confirmation, further demand confirmation work will be carried out according to the type of requirement and the level to which it belongs until the overall demand confirmation meets 100% requirements.

[0055] 4. Conduct helicopter model requirements verification

[0056] The purpose of requirement verification is to ensure that the implementation of the system can meet the confirmed requirements. Verification activities are a long-term, iterative process in the development of helicopter models. Helicopter model requirement verification includes two steps: defining the requirement verification plan and conducting the requirement verification evaluation.

[0057] a) Define the requirements verification plan

[0058] In order to meet the needs of the requirements verification engineering activities at each stage, the helicopter model requirements verification plan is also defined based on a structured form. Combined with the helicopter model practice design, a general requirements verification plan form is formed. The style is shown in Table 2.

[0059] Complete the definition of the requirements verification plan by filling in the requirements verification plan form. An example of a helicopter model requirements verification plan is shown in Table 3.

[0060] Table 2 Requirements Verification Plan Form Sample

[0061]

[0062] Table 3 Example of helicopter model requirements verification plan

[0063]

[0064] b) Conduct a needs validation assessment

[0065] Based on the above-mentioned form-based demand verification method, a quantitative assessment of the overall verification of helicopter model requirements can be made. By counting the verification plan execution conclusions of each requirement, the total number of requirements with a verification plan execution conclusion of "compliant" divided by the total number of all requirements to be verified can be used to obtain the overall demand verification compliance rate of helicopter model requirements. For non-compliant requirements, further demand verification work will be carried out according to the type of requirement and the level to which it belongs until the overall demand verification meets 100% requirements.

Claims

1. A method for confirming and verifying helicopter model requirements, characterized in that: The method comprises the following steps: Obtain helicopter model mission scenarios and conduct helicopter model demand modeling analysis; Based on the helicopter model requirement model, define system requirements; Define the demand confirmation plan and carry out demand confirmation for the defined requirements; After completing the demand confirmation, define the demand confirmation matrix based on the demand confirmation plan and complete the confirmation evaluation; Define the requirements verification plan and carry out requirements verification according to system requirements; After completing the requirements verification, define the requirements verification matrix based on the requirements verification plan and complete the verification evaluation.

2. The method according to claim 1, characterized in that The helicopter model demand modeling analysis includes: Aiming at the typical mission scenarios of helicopter models, a model-based system engineering approach is adopted to carry out demand modeling and analysis of helicopter models.

3. The method according to claim 2, characterized in that The modeling and analysis process requires three steps: scenario timing process modeling and analysis, scenario activity flow modeling and analysis, and activity-function list definition.

4. The method according to claim 3, characterized in that The scene time sequence process modeling and analysis is to analyze the scene process from the dimension of time sequence and build a scene time sequence model; Scenario activity process modeling analysis is to analyze the scenario process from the dimension of process activities and build a scenario activity model; Finally, activities for all typical scenarios are summarized, transformed into a functional list of helicopter models, and an activity-function mapping matrix model is established.

5. The method according to claim 1, characterized in that The model-based helicopter model requirement definition includes: Conduct functional analysis based on the functional list formed by the analysis; Form interface requirements based on functional logic definitions; Conduct design analysis and define performance indicators based on the functions of the helicopter model; Conduct design analysis based on the characteristics of the helicopter model; Finally, all categories of requirements are standardized and itemized to form a system requirement set.

6. The method according to claim 5, characterized in that The characteristics of the helicopter model include: reliability, testability, maintainability, safety, security, protection, environmental adaptability, and electromagnetic adaptability of the helicopter model.

7. The method according to claim 1, characterized in that Carrying out helicopter model requirement confirmation includes two steps: defining the requirement confirmation plan and conducting a requirement confirmation assessment.

8. The method according to claim 1, characterized in that Carrying out helicopter model requirement verification includes two steps: defining the requirement verification plan and conducting a requirement verification assessment.

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