Data association driven electrical system engineering change method

Abstract

The invention provides a data association driven electrical system engineering change method, and belongs to the field of aircraft product data management, and the method comprises the steps: determining electrical system digital design elements based on a physical architecture, and constructing an association relationship between links of the electrical system digital design elements; defining a design module based on each link of the digital design elements of the electrical system, and defining the design module as a production module and a process module of the electrical system on the basis of production and manufacturing of the electrical system; the method comprises the following steps: establishing an association relationship between each production module and all process modules in an electrical system by taking production modules of various electrical systems as a core; and constructing an electrical system process module engineering change process driven by the electrical system production module, determining an evolution mechanism of versions, version numbers and states in the electrical system process module engineering change process, and completing electrical system engineering change based on the evolution mechanism.

Description

Technical Field

[0001] The present application belongs to the field of aircraft product data management, and in particular, relates to a data association driven electrical system engineering modification method. Background Art

[0002] Aircraft design is a complex system engineering and a multi-disciplinary integrated design process. As an important component of the design, the design quality of the electrical system has a significant impact on the aircraft's development quality and even the aircraft's safety.

[0003] Traditional electrical system design is based on multiple single-point design tools to design schematics, wiring diagrams, wire harness diagrams, and three-dimensional installation diagrams, that is, the electrical system design mode is a design mode in which two-dimensional diagrams (including schematics, wiring diagrams, wire harness diagrams, etc.) and three-dimensional installation diagrams (including equipment installation diagrams, bracket installation diagrams, wire harness installation diagrams, etc.) are separated. That is, schematics, wiring diagrams, wire harness diagrams, etc. are designed in a two-dimensional environment, and there is a certain correlation between their design elements. Changes in schematics can partially drive changes in wiring diagrams and wire harness diagrams; equipment installation diagrams, bracket installation diagrams, wire harness installation diagrams, etc. are designed in a three-dimensional environment, and there is a correlation between their design elements. Changes in bracket installation diagrams can drive the associated changes of equipment installation diagrams and wire harness installation diagrams through the association relationship to ensure the consistency of the status between the installation diagrams. However, the association between two-dimensional diagrams and three-dimensional installation diagrams has not been established, resulting in the interaction between two-dimensional diagrams and three-dimensional installation diagrams, as well as the two-dimensional and three-dimensional integrated design based on two-dimensional diagrams, which all rely on manual operations by designers, and cannot fully guarantee the consistency of data status. Summary of the invention

[0004] The purpose of the present application is to provide a data association driven electrical system engineering modification method to solve or alleviate at least one problem in the background technology.

[0005] The technical solution of the present application is: a data association driven electrical system engineering modification method, comprising:

[0006] Determine the digital design elements of the electrical system based on the physical architecture, and build the relationship between the various links of the digital design elements of the electrical system;

[0007] Define design modules based on each link of the digital design elements of the electrical system, and define design modules as production modules and process modules of the electrical system based on the production and manufacturing of the electrical system;

[0008] Taking the production modules of various electrical systems as the core, establish the association between each production module and all process modules in the electrical system;

[0009] Construct an electrical system process module engineering change process driven by the electrical system production module, determine the evolution mechanism of the version, version number, and status during the electrical system process module engineering change process, and complete the electrical system engineering change based on the evolution mechanism.

[0010] Preferably, the electrical system digital design elements include physical architecture design elements, EICD design elements, schematic design elements, EWIS integrated design elements, wiring diagram design elements, equipment installation design elements, bracket installation design elements, wire harness installation design elements, and wire harness diagram design elements.

[0011] Preferably, the design module includes a physical architecture module, a schematic module, a main channel module, a conceptual separation surface module, a three-dimensional signal module, a pre-bundling module, a wiring diagram module, an equipment installation diagram module, a bracket installation diagram module, a wiring harness installation diagram module and a wiring harness diagram module.

[0012] Preferably, a structure tree of the physical architecture is constructed according to the hierarchical structure of aircraft, system, subsystem or sub-system, and equipment, and a subsystem or sub-system node is defined as a physical architecture module as the smallest unit of physical architecture change;

[0013] Construct a schematic diagram structure tree according to the hierarchical structure of aircraft, system, subsystem or sub-subsystem, and equipment. The subsystem or subsystem node is the smallest unit of schematic diagram change and is defined as a schematic diagram module.

[0014] The main channel in the three-level prototype structure tree is organized according to sections, and the sections are divided into multiple modules according to regions. The module is the smallest unit for changing the main channel and is defined as the main channel module.

[0015] The concept separation surface under the main channel node is divided into multiple modules according to the region. The module is the minimum unit of the concept separation surface change and is defined as the concept separation surface module.

[0016] The schematic diagram structure tree is constructed according to the hierarchical structure of aircraft, system, subsystem or subsystem, and equipment. The subsystem or subsystem node is the L2P mapping result from the schematic diagram to the 3D layout and is consistent with the schematic diagram. Figure 1 One-to-one correspondence, as the smallest unit of three-dimensional signal change, is defined as a three-dimensional signal module;

[0017] With wiring harness Figure 1 A pre-bundling module node corresponding to and including the three-dimensional signal of the wire harness and the wire harness connector is used as the minimum unit of pre-bundling change and is defined as a pre-bundling module;

[0018] During the wiring diagram design process, process data and final results are managed in the schematic diagram structure tree and the three-level prototype structure tree respectively. Figure 1The subsystem or subsystem node can be used as the minimum unit for changing the process data of the wiring diagram, which is defined as the wiring diagram process module. The final result of the wiring diagram is automatically generated by the process data containing the two-dimensional chart, which is defined as the wiring diagram module.

[0019] The electrical equipment installation locations on the aircraft are constructed separately according to the profession and section, and are defined as equipment installation diagram modules;

[0020] The bracket installation positions corresponding to the electrical equipment constructed separately according to the profession and section are defined as the bracket installation diagram module;

[0021] The three-dimensional wiring harness connected to the electrical equipment, which is constructed separately according to the profession and section, is defined as the wiring harness installation diagram module;

[0022] A single wire harness that can be manufactured independently is identified as a wire harness diagram and defined as a wire harness diagram module.

[0023] Preferably, the production module is a module that needs to be issued to a manufacturing unit for manufacturing and installation, and the production module includes a wiring diagram production module, an equipment installation diagram module, a bracket installation diagram module definition, a wire harness installation diagram module, and a wire harness diagram module.

[0024] Preferably, the process module is process data that serves as input data for generating a production module in the electrical system design process and does not need to be released to a manufacturing unit. The process module includes a physical architecture module, a schematic module, a main channel module, a conceptual separation surface module, a three-dimensional signal module, a pre-bundling module, and a wiring diagram module.

[0025] Preferably, taking various types of electrical system production modules as the core, establishing the association relationship between each type of production module and all process modules includes:

[0026] Establish association relationships with all process modules in sequence with the wiring diagram production module, equipment installation diagram module, bracket installation diagram module, wire harness installation diagram module or wire harness diagram module as the core, and determine whether engineering changes to the process module will cause corresponding changes to the wiring diagram production module, equipment installation diagram module, bracket installation diagram module, wire harness installation diagram module or wire harness diagram module, and whether engineering changes to the wiring diagram production module, equipment installation diagram module, bracket installation diagram module, wire harness installation diagram module or wire harness diagram module will cause corresponding changes to the process module.

[0027] Preferably, the version evolution mechanism in the process module engineering change process is:

[0028] The version identification letters in the process module engineering change process change linearly in sequence, and the version is upgraded in alphabetical order. After a single letter is used up, two letters are used for identification.

[0029] Preferably, the version number evolution mechanism during the process module engineering change process is:

[0030] The version number of the process module is automatically calculated when it is changed, and increases in sequence by odd numbers of at least three digits and / or by even numbers of at least three digits, depending on the configuration type.

[0031] Preferably, the state evolution mechanism in the process module change process is:

[0032] After using ECP to plan the process module for the first time, freeze the status of the relevant process module before changing the version or edition number;

[0033] For serial changes to the same process module, multiple ECNs complete the process in sequence, the corresponding production module status is frozen, and the version status of the corresponding process module is frozen in sequence at the same time;

[0034] For the parallel change of the version number of the same process module, multiple ECNs complete the process in sequence, and the status of the corresponding process modules is frozen in sequence;

[0035] For the parallel change of the version number of the same process module, the latest versions of multiple production modules correspond to the same version of the same process module. Multiple ECNs complete the process in sequence. The ECN that completes the process first causes the corresponding version status of the process module to be frozen.

[0036] The data association-driven electrical system engineering change method proposed in this application can achieve consistency in the design change status of the electrical system production module and the process module during the digital design and engineering change process of the electrical system based on the physical architecture, thereby ensuring the design quality of the aircraft electrical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solution provided by the present application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present application.

[0038] Figure 1 This is a schematic diagram of the overall architecture of the electrical system engineering modification method of this application.

[0039] Figure 2 A flow chart for data-correlation-driven electrical system engineering changes in this application. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the embodiments of this application.

[0041] The present application proposes a data association-driven electrical system engineering change method, which solves the data association-driven problem in the aircraft electrical system engineering change process by establishing the association relationship between the various design elements of the aircraft electrical system, and ensures that the data status of each design element remains consistent after the electrical system engineering change.

[0042] The data association-driven electrical system engineering change method proposed in this application follows two basic principles:

[0043] 1) Carry out digital design of electrical system based on architecture definition according to MBSE (Model Based Systems Engineering) design concept, and establish correlation between various links;

[0044] 2) Define the production module and process module, and establish the association relationship between the production module and the process module with the production module as the core.

[0045] Under the above basic principles, two businesses are formed: electrical system digital design and electrical system engineering change. In the electrical system digital design business, the electrical system digital design work is carried out based on the physical architecture. In the process of electrical system digital design, the production module and process module are constructed, and the production module is finally issued to the manufacturing unit. When the production module needs to actively make engineering changes, or the process module change causes the production module to passively make engineering changes, it is necessary to initiate an engineering change process for the production module, and the version, number, status, etc. of the associated process module will be changed accordingly with the change of the production module.

[0046] like Figure 1 As shown, the data association driven electrical system engineering change method provided by the present application includes:

[0047] S10. Determine the digital design elements of the electrical system based on the physical architecture, and build the relationship between each link in the digital design elements of the electrical system.

[0048] First, according to the MBSE design concept, the digital design elements of the electrical system based on the physical architecture are determined. The digital design elements of the electrical system include physical architecture design elements, EICD (Electrical Interface Control Document) design elements, schematic design elements, EWIS (Electrical Wiring Interconnection Systems) comprehensive design elements, wiring diagram design elements, equipment installation design elements, bracket installation design elements, wire harness installation design elements, wire harness diagram design elements, etc. Based on the above-mentioned digital design elements of the electrical system, a top-down relationship between the design elements is established, and the relationship includes the sequence of each link, the driving relationship between each link, etc.

[0049] S20. Define design modules based on various aspects of the digital design elements of the electrical system, and define design modules as production modules and process modules based on the production and manufacturing of the electrical system.

[0050] The design module includes a physical architecture module, a schematic module, a main channel module, a conceptual separation surface module, a three-dimensional signal module, a pre-bundling module, a wiring diagram module, an equipment installation diagram module, a bracket installation diagram module, a wiring harness installation diagram module and a wiring harness diagram module.

[0051] The definitions of each module are as follows:

[0052] a) Physical architecture module. The physical architecture structure tree is constructed according to the hierarchical structure of aircraft, system, subsystem or subsystem, and equipment. The subsystem or subsystem node is the basic unit for defining the device connection relationship. Therefore, the subsystem or subsystem node can be used as the smallest unit for physical architecture change and is defined as a physical architecture module.

[0053] b) Schematic module. Similar to the physical architecture structure tree, the schematic structure tree is also constructed according to the hierarchy of aircraft, system, subsystem or subsystem, and equipment. The subsystem or subsystem node is the basic unit for defining the connection relationship between equipment or signals. Therefore, the subsystem or subsystem node can be used as the smallest unit for schematic changes and is defined as a schematic module.

[0054] c) Main channel module: The main channel is located in the three-level prototype structure tree and is organized according to sections. Under the sections, there are multiple modules starting with MB according to the area. The module starting with MB can be used as the minimum unit for changing the main channel and is defined as the main channel module.

[0055] d) Concept separation surface module. The concept separation surface is located under the main channel node and is divided into multiple modules starting with FLM according to the region. The concept separation surface module starting with FLM can be used as the minimum unit for changing the concept separation surface and is defined as a concept separation surface module.

[0056] e) Three-dimensional signal module, which is organized in the same way as the schematic diagram structure. The subsystem or subsystem node is the L2P (Logical to Physical) mapping result from the schematic diagram to the three-dimensional layout. Figure 1 One-to-one correspondence can be used as the smallest unit for three-dimensional signal change and is defined as a three-dimensional signal module.

[0057] f) Pre-bundled module, with wiring harness Figure 1 One by one, the pre-bundling module node includes the three-dimensional signal of the wire harness and components such as the wire harness connector. The pre-bundling module node can be used as the minimum unit of pre-bundling modification and is defined as a pre-bundling module.

[0058] g) Wiring diagram module: During the wiring diagram design process, process data and final results are managed in the schematic diagram structure tree and the three-level prototype structure tree respectively. Figure 1 The subsystem or subsystem node can be used as the smallest unit for changing the process data of the wiring diagram, which is defined as the wiring diagram process module. The final result of the wiring diagram is automatically generated by the process data, usually including some two-dimensional charts, which are defined as the wiring diagram module.

[0059] h) Equipment installation drawing module. During the electrical system design process, the installation location of the electrical equipment on the aircraft is generally constructed into a separate module according to professional and section rules, which is defined as the equipment installation drawing module.

[0060] i) Bracket installation diagram module. During the electrical system design process, corresponding to the electrical equipment, the bracket installation position is generally constructed as a separate module according to professional and section rules, which is defined as the bracket installation diagram module.

[0061] j) Wire harness installation diagram module. During the electrical system design process, the three-dimensional wire harness connected to the electrical equipment is generally constructed into a separate module according to professional and section rules, which is defined as a wire harness installation diagram module.

[0062] k) Wire harness diagram module. The wire harness diagram is also called the wire harness process diagram. It is the basis for wire harness manufacturing. Generally, a single wire harness that can be manufactured independently is identified as a wire harness diagram, which is defined as a wire harness diagram module.

[0063] The production module is a module that needs to be issued to the manufacturing unit for manufacturing and installation, which includes the wiring diagram production module, the equipment installation diagram module, the bracket installation diagram module definition, the wire harness installation diagram module, and the wire harness diagram module.

[0064] The process module is some process data that can be used as input data for generating production modules during the electrical system design process without being released to the manufacturing unit. It includes the physical architecture module, schematic module, main channel module, conceptual separation surface module, three-dimensional signal module, pre-bundling module, and wiring diagram module.

[0065] S30. With various electrical system production modules as the core, establish the association relationship between each type of production module and all process modules, including:

[0066] a) With the wiring diagram production module as the core, establish the association relationship with other process modules, determine the contents of the process module that will cause corresponding changes in the wiring diagram production module due to engineering changes, and the contents of the process module that will cause corresponding changes in the wiring diagram production module due to engineering changes. Among them, the process modules associated with the wiring diagram production module mainly include: physical architecture module, schematic module, main channel module, concept separation surface module, three-dimensional signal module, pre-bundling module, and wiring diagram process module.

[0067] b) With the equipment installation diagram module as the core, establish the association relationship with other process modules, determine the content of the process module that will cause the corresponding change of the equipment installation diagram module due to the engineering change of the process module, and the content of the process module that will cause the engineering change of the equipment installation diagram module to cause the corresponding change of the process module. The process modules associated with the equipment installation diagram module mainly include: physical architecture module, schematic module, main channel module, concept separation surface module, three-dimensional signal module, pre-bundling module, wiring diagram process module.

[0068] c) Establish the association relationship with other process modules with the support installation diagram module as the core, determine the content of the process module that will cause the support installation diagram module to change accordingly, and the content of the process module that will cause the support installation diagram module to change accordingly. Among them, the process modules associated with the support installation diagram module mainly include: physical architecture module, schematic module, main channel module, concept separation surface module, three-dimensional signal module, pre-bundling module, wiring diagram process module.

[0069] d) Establish the association relationship with other process modules with the wiring harness installation diagram module as the core, determine the content that the engineering change of the process module will cause the corresponding change of the wiring harness installation diagram module, and the content that the engineering change of the wiring harness installation diagram module will cause the corresponding change of the process module. Among them, the process modules associated with the wiring harness installation diagram module mainly include: physical architecture module, schematic module, main channel module, concept separation surface module, three-dimensional signal module, pre-bundling module, wiring diagram process module.

[0070] e) With the wiring harness diagram module as the core, establish the association relationship with other process modules, determine the contents of the process module that will cause the wiring harness diagram module to change accordingly, and the contents of the process module that will cause the wiring harness diagram module to change accordingly. The process modules associated with the wiring harness diagram module mainly include: physical architecture module, schematic module, main channel module, concept separation surface module, three-dimensional signal module, pre-bundling module, wiring diagram process module.

[0071] S40. Construct an electrical system process module engineering change process driven by the electrical system production module, determine the evolution mechanism of the version, version number, and status during the electrical system process module engineering change process, and complete the electrical system engineering change based on the evolution mechanism.

[0072] Taking a certain production module as the object, initiate the change application process ECP (engineering change proposal), analyze and plan the process modules related to it. The change application of the production module and the process module related to it is implemented through ECN (engineering change notice). After the joint modification of the production module and the process module, it is reviewed and issued again to complete a round of engineering changes. Figure 2 shown.

[0073] Among them, the version evolution mechanism during the process module engineering change process is:

[0074] The version identification during the process module engineering change process is "A", "B", "C", "D", ..., which changes linearly in sequence and is upgraded in alphabetical order (letters I, O, S, X, and Z are not used). After a single letter is used up, two letters are used, that is, after the "Y" version, the version identification "AA", "AB", ... is used.

[0075] The version number evolution mechanism during the process module engineering change process is:

[0076] The version number of the process module is automatically calculated when it is changed. According to the configuration model, "001" is derived into "003", "005", "007", ..., and "002" is derived into "004", "006", "008", ..., and changes in the above manner.

[0077] The state evolution mechanism during process module change is:

[0078] After using ECP to plan the process module for the first time, first freeze the status of the relevant process module, that is, set the status of the process module version "A" to "released", and then change the version or version number; for serial changes to the same process module, multiple ECNs complete the process in sequence, the corresponding production module status is frozen, and the version status of the corresponding process module is frozen at the same time; for parallel changes to the version number of the same process module, multiple ECNs complete the process in sequence, and the status of the corresponding process modules is frozen in sequence; for parallel changes to the version number of the same process module, the latest versions of multiple production modules correspond to the same version of the same process module, and multiple ECNs complete the process in sequence. The ECN that completes the process first triggers the freezing of the corresponding version status of the process module.

[0079] The data association-driven electrical system engineering change method proposed in this application can achieve consistency in the design change status of the electrical system production module and the process module during the digital design and engineering change process of the electrical system based on the physical architecture, thereby ensuring the design quality of the aircraft electrical system.

[0080] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A data association driven electrical system engineering modification method, characterized in that: include: Determine the digital design elements of the electrical system based on the physical architecture, and build the relationship between the various links of the digital design elements of the electrical system; Define design modules based on each link of the digital design elements of the electrical system, and define design modules as production modules and process modules of the electrical system based on the production and manufacturing of the electrical system; Taking the production modules of various electrical systems as the core, establish the association between each production module and all process modules in the electrical system; Construct an electrical system process module engineering change process driven by the electrical system production module, determine the evolution mechanism of the version, version number, and status during the electrical system process module engineering change process, and complete the electrical system engineering change based on the evolution mechanism.

2. The data association driven electrical system engineering modification method according to claim 1, characterized in that: The electrical system digital design elements include physical architecture design elements, EICD design elements, schematic design elements, EWIS comprehensive design elements, wiring diagram design elements, equipment installation design elements, bracket installation design elements, wiring harness installation design elements, and wiring harness diagram design elements.

3. The data association driven electrical system engineering modification method according to claim 2, characterized in that: The design module includes a physical architecture module, a schematic module, a main channel module, a conceptual separation surface module, a three-dimensional signal module, a pre-bundling module, a wiring diagram module, an equipment installation diagram module, a bracket installation diagram module, a wiring harness installation diagram module and a wiring harness diagram module.

4. The data association driven electrical system engineering modification method according to claim 3, characterized in that: The physical architecture structure tree is constructed according to the hierarchical structure of aircraft, system, subsystem or sub-subsystem, and equipment. The subsystem or sub-subsystem node is the smallest unit of physical architecture change and is defined as a physical architecture module. Construct a schematic diagram structure tree according to the hierarchical structure of aircraft, system, subsystem or sub-subsystem, and equipment. The subsystem or subsystem node is the smallest unit of schematic diagram change and is defined as a schematic diagram module. The main channel in the three-level prototype structure tree is organized according to sections, and the sections are divided into multiple modules according to regions. The module is the smallest unit for changing the main channel and is defined as the main channel module. The concept separation surface under the main channel node is divided into multiple modules according to the region. The module is the minimum unit of the concept separation surface change and is defined as the concept separation surface module. The schematic diagram structure tree is constructed according to the hierarchical structure of aircraft, system, subsystem or sub-subsystem, and equipment. The subsystem or sub-subsystem node is the L2P mapping result from the schematic diagram to the 3D layout and corresponds to the schematic diagram one by one. As the smallest unit of 3D signal change, it is defined as a 3D signal module. A pre-bundling module node which corresponds to the harness diagram one by one and includes the three-dimensional signal of the harness and the harness connector is defined as a pre-bundling module as the minimum unit of pre-bundling change; During the wiring diagram design process, process data and final results are managed in the schematic diagram structure tree and the three-level prototype structure tree respectively. The wiring diagram process data management is consistent with the schematic diagram. The subsystem or subsystem node can be used as the minimum unit for changing the wiring diagram process data, which is defined as the wiring diagram process module. The final result of the wiring diagram is automatically generated by the process data containing the two-dimensional chart, which is defined as the wiring diagram module. The electrical equipment installation locations on the aircraft are constructed separately according to the profession and section, and are defined as equipment installation diagram modules; The bracket installation positions corresponding to the electrical equipment constructed separately according to the profession and section are defined as the bracket installation diagram module; The three-dimensional wiring harness connected to the electrical equipment, which is constructed separately according to the profession and section, is defined as the wiring harness installation diagram module; A single wire harness that can be manufactured independently is identified as a wire harness diagram and defined as a wire harness diagram module.

5. The data association driven electrical system engineering modification method according to claim 4, characterized in that: The production module is a module that needs to be issued to a manufacturing unit for manufacturing and installation. The production module includes a wiring diagram production module, an equipment installation diagram module, a bracket installation diagram module definition, a wire harness installation diagram module, and a wire harness diagram module.

6. The data association driven electrical system engineering modification method according to claim 4, characterized in that: The process module is process data that is used as input data for generating a production module during the electrical system design process and does not need to be released to the manufacturing unit. The process module includes a physical architecture module, a schematic module, a main channel module, a conceptual separation surface module, a three-dimensional signal module, a pre-bundling module, and a wiring diagram module.

7. The data association driven electrical system engineering modification method according to claim 4, characterized in that: With various electrical system production modules as the core, the relationship between each type of production module and all process modules is established, including: Establish association relationships with all process modules in sequence with the wiring diagram production module, equipment installation diagram module, bracket installation diagram module, wire harness installation diagram module or wire harness diagram module as the core, and determine whether engineering changes to the process module will cause corresponding changes to the wiring diagram production module, equipment installation diagram module, bracket installation diagram module, wire harness installation diagram module or wire harness diagram module, and whether engineering changes to the wiring diagram production module, equipment installation diagram module, bracket installation diagram module, wire harness installation diagram module or wire harness diagram module will cause corresponding changes to the process module.

8. The data association driven electrical system engineering modification method according to claim 7, characterized in that: The version evolution mechanism during the process module engineering change process is: The version identification letters in the process module engineering change process change linearly in sequence, and the version is upgraded in alphabetical order. After a single letter is used up, two letters are used for identification.

9. The data association driven electrical system engineering modification method according to claim 8, characterized in that: The version number evolution mechanism during the process module engineering change process is: The version number of the process module is automatically calculated when it is changed, and increases in sequence according to odd numbers of at least three digits and / or in sequence according to even numbers of at least three digits, depending on the configuration type.

10. The data association driven electrical system engineering modification method according to claim 9, characterized in that: The state evolution mechanism during process module change is: After using ECP to plan the process module for the first time, freeze the status of the relevant process module before changing the version or edition number; For serial changes to the same process module, multiple ECNs complete the process in sequence, the corresponding production module status is frozen, and the version status of the corresponding process module is frozen in sequence at the same time; For the parallel change of the version number of the same process module, multiple ECNs complete the process in sequence, and the status of the corresponding process modules is frozen in sequence; For the parallel change of the version number of the same process module, the latest versions of multiple production modules correspond to the same version of the same process module. Multiple ECNs complete the process in sequence. The ECN that completes the process first causes the corresponding version status of the process module to be frozen.

Images