A large-scale digital-analog sharing interactive system and method for aircraft strength test

Abstract

The present application belongs to the field of aircraft strength test auxiliary technology, and specifically relates to a large-scale digital model sharing and interaction system and method for aircraft strength test, wherein the sharing and interaction system includes: a three-dimensional modeling unit, used to establish a test three-dimensional model; a model processing unit, used to convert the three-dimensional model into a model file in a predetermined format; a model editing unit, used to establish a material map according to the model material and replace the material shader of the model component with a shader that meets the performance requirements; a display unit, used to display the model; a sharing and interaction unit, which can respond to predetermined human-computer interaction gestures to operate the model. The large-scale digital model sharing and interaction system and method for aircraft strength test of the present application can effectively improve the efficiency of test design, facilitate the discussion and analysis of design schemes, ensure that there are no major problems with the test scheme, and can improve the reliability and convenience of implementation and installation, making on-site construction more intuitive and easy to operate, improving installation efficiency and avoiding errors.

Description

Technical Field

[0001] The present application belongs to the field of aircraft strength test auxiliary technology, and specifically relates to a large-scale digital-analog sharing interactive system and method for aircraft strength test. Background Art

[0002] During the aircraft strength test design process, the iteration of the design scheme has a significant impact on work efficiency. During the design process or after a certain stage of work design is completed, the designer needs to organize the test entrusting party and the test implementing party's technical experts to evaluate and analyze the feasibility, technical difficulties and safety risks of the current scheme, and the test personnel need to be able to conduct test collaboration at any time. At present, technical schemes are usually discussed in the form of PPT and Word documents, which is not intuitive enough when encountering complex problems and increases the difficulty of communication.

[0003] After the test designers complete the design, they need to convert the 3D model into a 2D drawing to facilitate on-site construction, which increases the workload of the designers. At the same time, the installation process displayed according to the 2D drawing is not intuitive in the 3D model, which increases the difficulty of communication between designers and construction personnel, and easily leads to installation discrepancies with the design, reducing implementation efficiency. Summary of the invention

[0004] In order to solve at least one technical problem existing in the prior art, the present application provides a large-scale digital-analog sharing interactive system and method for aircraft strength testing.

[0005] First aspect. The present application discloses a large-scale digital-analog sharing and interactive system for aircraft strength testing, comprising:

[0006] A three-dimensional modeling unit, used to establish a test three-dimensional model according to the aircraft strength test plan;

[0007] A model processing unit, used for converting the three-dimensional model into a model file in a predetermined format;

[0008] A model editing unit, the model editing unit belongs to a predetermined platform, and is used to establish a corresponding material map according to the model material in the model file, and is used to replace the material shader of the model component in the model file with a shader that meets the display performance of the predetermined platform;

[0009] A display unit, used for displaying the model processed by the model editing unit;

[0010] A shared interaction unit is developed based on the predetermined platform and can respond to predetermined human-computer interaction gestures to perform corresponding operations on the model displayed by the display unit.

[0011] According to at least one embodiment of the present application, the three-dimensional model includes at least one of the following models:

[0012] Test piece model, loading frame model, support fixture model, loading point installation model and oil and gas circuit model.

[0013] According to at least one embodiment of the present application, the model processing unit is further used for:

[0014] Determining the number of model faces of the three-dimensional model; and

[0015] According to different display requirements of the display unit, the number of model faces of the three-dimensional model is processed accordingly.

[0016] According to at least one embodiment of the present application, when the display unit is a VR pair of glasses, and when the model processing unit determines that the number of model faces of the three-dimensional model is greater than 200,000, the model processing unit can automatically reduce the number of model faces.

[0017] According to at least one embodiment of the present application, the shared interaction unit includes:

[0018] A model interaction module, configured to perform at least one of the following operations on the model in the display unit in response to a human operation: rotation, scaling, translation, hiding, and display;

[0019] A model animation rendering module, for performing at least one of the following operations on the model in the display unit in response to a human operation: disassembly, assembly, installation animation, installation precautions, force transmission path analysis, details, and connection analysis;

[0020] The human-computer interaction module is used to open or close the model in the display unit in response to human operation, and to select or switch between the model interaction module and the model animation rendering module in response to human operation.

[0021] According to at least one embodiment of the present application, there are multiple display units, and the multiple display units are connected via a wired or wireless network;

[0022] Correspondingly, the shared interaction unit also includes:

[0023] A conference sharing module, used for sharing the model information in any current display unit to other display units in response to personnel operation;

[0024] Correspondingly, the human-computer interaction module is also used for:

[0025] The responding personnel operates to select or switch between the model interaction module, the model animation rendering module or the conference sharing module.

[0026] In a second aspect, the present application also discloses a large-scale digital model sharing and interactive method for aircraft strength test, comprising the following steps:

[0027] Step 1: Establish a three-dimensional test model according to the aircraft strength test plan;

[0028] Step 2: converting the three-dimensional model into a model file in a predetermined format;

[0029] Step 3: Create a corresponding material map according to the model material in the model file, and replace the material shader of the model component in the model file with a shader that meets the display performance of the predetermined platform;

[0030] Step 4: Display the model processed in step 3;

[0031] Step 5: respond to a predetermined human-computer interaction gesture and perform corresponding operations on the model displayed in step 4.

[0032] According to at least one embodiment of the present application, in the step 2, before converting the three-dimensional model into a model file in a predetermined format, the following steps are also included:

[0033] Determining the number of model faces of the three-dimensional model; and

[0034] According to different display requirements in step 4, the number of model faces of the three-dimensional model is processed accordingly.

[0035] According to at least one embodiment of the present application, in step 5, performing corresponding operations on the model displayed in step 4 in response to a predetermined human-computer interaction gesture specifically includes the following steps:

[0036] Model interaction step, responding to the operator's operation, performing at least one of the following operations on the model displayed in step 4: rotation, scaling, translation, hiding and displaying;

[0037] Model animation rendering step, responding to personnel operation to perform at least one of the following operations on the model displayed in step 4: disassembly, assembly, installation animation, installation precautions, force transmission path analysis, details and connection analysis;

[0038] The human-computer interaction step, the response personnel operation to open or close the model displayed in the step four, and the response personnel operation to select or switch between the model interaction step or the model animation rendering step.

[0039] According to at least one embodiment of the present application, the step five further includes:

[0040] Meeting sharing steps and responder operations share any model currently displayed via a wired or wireless network;

[0041] Correspondingly, at this time, the human-computer interaction step also includes:

[0042] The responding personnel operates to select or switch between the model interaction step, the model animation rendering step or the conference sharing step.

[0043] This application has at least the following beneficial technical effects:

[0044] The large-scale digital-model sharing interactive system and method for aircraft strength testing of the present application can effectively improve the efficiency of test design, facilitate the discussion and analysis of design solutions, and ensure that there are no major problems with the test solutions. In addition, it can reduce the workload of test personnel and reduce the need to convert three-dimensional models into two-dimensional drawings. Furthermore, it can improve the reliability and convenience of installation implementation, and on-site construction is more intuitive and easy to operate through real-time three-dimensional display, thereby improving installation efficiency and avoiding errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a flow chart of an embodiment of the large-scale digital-analog sharing and interactive method for aircraft strength testing of the present application. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0047] In view of the difficulties in discussing and coordinating solutions during the design process and the low efficiency of on-site construction based on two-dimensional drawings, the core idea of ​​this application proposes a large-scale digital model sharing and interactive system and method for aircraft strength test based on MR. The three-dimensional model is simplified into a model that can be displayed in terminal devices (such as VR glasses, computers, tablets, etc.) using 3D Max software, and then the model is imported into the Unity3D editor for material coloring, animation rendering and other operations to produce executable APP applications. Furthermore, the model can be displayed in the terminal device, and the animation effects such as model disassembly and assembly can be displayed. The characteristics of 5G network such as large bandwidth, low latency, and high speed can be used to realize the interactive sharing of large digital models and synchronize the display of models on each terminal display device.

[0048] Specifically, Figure 1 As shown, the present application discloses a large-scale digital-model sharing and interactive system for aircraft strength test, including a three-dimensional modeling unit, a model processing unit, a model editing unit, and a display unit (i.e. Figure 1 display terminal in the system) and a shared interaction unit.

[0049] Among them, the three-dimensional modeling unit is used to establish a test three-dimensional model according to the aircraft strength test plan; the three-dimensional modeling unit can use a variety of suitable three-dimensional design software, such as Catia three-dimensional software, and export the three-dimensional digital model into a corresponding cgr format file; in addition, the established three-dimensional model can include a variety of structures, such as test pieces, loading frames, support fixtures and loading point installations, oil and gas circuit models, etc.

[0050] The model processing unit is used to convert the three-dimensional model established in the three-dimensional modeling unit into a model file in a predetermined format; the purpose of the format conversion is to facilitate subsequent editing in the model editing unit and display in the display unit. Similarly, the model processing unit can use a variety of known suitable three-dimensional software. In this embodiment, it is preferred to use the three-dimensional animation rendering and production software 3D Max to open the cgr model file exported in the previous step, and finally export the model file in FBX or OBJ format.

[0051] It should also be noted that, in some other embodiments, the model processing unit can also determine the number of model faces of the three-dimensional model; and perform corresponding processing on the number of model faces of the three-dimensional model according to different display requirements of a subsequent display unit (i.e., one of the devices such as VR glasses, computers, tablet computers, etc.).

[0052] Specifically, in this embodiment, taking VR glasses as an example, the number of model faces can be directly checked in 3D Max software, and whether the model needs to be reduced in face value can be determined based on the display capability of the terminal device; when the number of model faces is less than 200,000 (ten thousand), the model file in FBX or OBJ format can be directly exported through 3D Max software; when the number of model faces is greater than 200,000, the model needs to be reduced in face value (the model can use the automatic face reduction plug-in provided by 3D Max software, and after face reduction, it is necessary to determine whether it meets the requirements and perform model repair as appropriate). After the face reduction is completed, the model file in FBX or OBJ format can be exported through 3D Max software.

[0053] The model editing unit is used to establish a corresponding material map according to the model material in the model file, and to replace the material shader of the model component in the model file with a shader that meets the display performance of the predetermined platform. Among them, the model editing unit can belong to a predetermined platform, and the predetermined platform can be a variety of known suitable real-time 3D interactive content creation and operation platforms. In this embodiment, taking the Unity3D platform as an example, the FBX or OBJ model file can be imported on the platform (to build various VR / MR interactive experiences), the corresponding material map can be established, and the material shader (Shader) of the model component can be replaced with a shader that meets the display performance of the publishing platform.

[0054] The display unit is used to display the model processed by the model editing unit, and can adopt one of the devices such as VR glasses, computers, tablet computers, etc. mentioned above.

[0055] The shared interaction unit can respond to the predetermined human-computer interaction gestures to perform corresponding operations on the model displayed by the display unit. Among them, the shared interaction unit is developed based on the above-mentioned predetermined platform, such as the same Unity3D platform as mentioned above, that is, the shared interaction unit can be an APP based on the application platform developed in the above-mentioned Unity3D (this embodiment is to develop an APP based on the display terminal / display unit), including a human-computer interaction interface, which can open and close the model in the main interface, or enter the model interface by scanning the model QR code, enter the conference mode to share the model, join and exit the conference interface; and can use the existing code of Unity 3D and package it to realize model interaction (rotation, scaling, translation); can customize the development of model animation (disassembly, assembly, animation explanation, etc.) according to the movement trend and assembly method of each component, can be made into a fixed animation in the three-dimensional animation rendering and production software (3D Max), or can be developed in Unity 3D according to the movement logic of each component.

[0056] To this end, the shared interaction unit of the present application may include a model interaction module, a model animation rendering module, and a human-computer interaction module.

[0057] Specifically, the model interaction module is used to perform at least one of the following operations on the model in the display unit in response to the human operation: rotation, scaling, translation, hiding, and displaying.

[0058] The model animation rendering module is used to respond to personnel operations to perform at least one of the following operations on the model in the display unit: disassembly, assembly, installation animation, installation precautions, force transmission path analysis, details and connection analysis.

[0059] The human-computer interaction module is used to open or close the model in the display unit in response to human operation, and to select or switch between the model interaction module and the model animation rendering module in response to human operation.

[0060] Furthermore, the number of display units in the present application can be multiple, and the multiple display units are connected via a wired or wireless network (such as 5G networking). In this case, the shared interaction unit can also include a conference sharing module, which is used to respond to personnel operations to share the model information in any current display unit to other display units, so that the corresponding models can be displayed synchronously on other display units. Correspondingly, the human-computer interaction module can also be used to respond to personnel operations to select or switch between the model interaction module, the model animation rendering module or the conference sharing module.

[0061] On the other hand, the present application also discloses a large-scale digital-analog sharing and interaction method for aircraft strength test, comprising the following steps:

[0062] Step 1: Establish a three-dimensional test model according to the aircraft strength test plan;

[0063] Step 2: converting the three-dimensional model into a model file in a predetermined format;

[0064] Step 3: Create a corresponding material map according to the model material in the model file, and replace the material shader of the model component in the model file with a shader that meets the display performance of the predetermined platform;

[0065] Step 4: Display the model processed in step 3;

[0066] Step 5: respond to the predetermined human-computer interaction gesture and perform corresponding operations on the model displayed in step 4.

[0067] Furthermore, in step 2, before converting the three-dimensional model into a model file in a predetermined format, the following steps are also included:

[0068] Determining the number of model faces of the three-dimensional model; and

[0069] According to the different display requirements in step 4, the number of model faces of the three-dimensional model is processed accordingly.

[0070] Further, in step 2, in step 5, performing corresponding operations on the model displayed in step 4 in response to a predetermined human-computer interaction gesture specifically includes the following steps:

[0071] Model interaction step, responding to the operator's operation, performing at least one of the following operations on the model displayed in step 4: rotation, scaling, translation, hiding and displaying;

[0072] Model animation rendering step, responding to personnel operation to perform at least one of the following operations on the model displayed in step 4: disassembly, assembly, installation animation, installation precautions, force transmission path analysis, details and connection analysis;

[0073] Meeting sharing steps and responder operations share any model currently displayed via a wired or wireless network;

[0074] The human-computer interaction step, the response personnel operation opens or closes the model displayed in the step four, and the response personnel operation selects or switches between the model interaction step, the model animation rendering step or the conference sharing step.

[0075] To sum up, in order to solve the problems of scheme discussion and scheme display during the implementation of aircraft strength test design, in order to improve the efficiency of test design and installation implementation, and to enable multiple parties to share and interact with large digital models in real time, this application uses 3Dmax software to simplify the number of model faces, and then develops a large-scale digital model sharing interactive APP based on the terminal device in the Unity3D editor. Finally, the APP is opened through the terminal display device to display the model. Combined with the characteristics of large bandwidth, low latency, and high speed of 5G network, interactive sharing of large digital models is realized.

[0076] The shared interactive system and method can effectively improve the efficiency of test design, facilitate the discussion and analysis of design solutions, and ensure that there are no major problems with the test solutions. In addition, it can facilitate the sharing of digital models by personnel from all parties, and on-site implementation personnel can view digital model details, installation animations, and installation precautions at any time during the implementation process, which can reduce the workload of test personnel and reduce the need to convert three-dimensional models to two-dimensional drawings. Furthermore, it can improve the reliability and convenience of installation implementation, and on-site construction is more intuitive and easy to operate through real-time three-dimensional display, which improves installation efficiency and avoids errors.

[0077] 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 large-scale digital-analog sharing interactive system for aircraft strength testing. It is characterized in that include: A three-dimensional modeling unit, used to establish a test three-dimensional model according to the aircraft strength test plan; A model processing unit, used for converting the three-dimensional model into a model file in a predetermined format; A model editing unit, the model editing unit belongs to a predetermined platform, and is used to establish a corresponding material map according to the model material in the model file, and is used to replace the material shader of the model component in the model file with a shader that meets the display performance of the predetermined platform; A display unit, used for displaying the model processed by the model editing unit; A shared interaction unit is developed based on the predetermined platform and can respond to predetermined human-computer interaction gestures to perform corresponding operations on the model displayed by the display unit.

2. According to the large-scale digital-analog sharing and interactive system for aircraft strength test in claim 1, It is characterized in that The three-dimensional model includes at least one of the following models: Test piece model, loading frame model, support fixture model, loading point installation model and oil and gas circuit model.

3. According to the large-scale digital-analog sharing interactive system for aircraft strength test in claim 1, It is characterized in that The model processing unit is also used for: Determining the number of model faces of the three-dimensional model; and According to different display requirements of the display unit, the number of model faces of the three-dimensional model is processed accordingly.

4. According to claim 3, the large-scale digital-analog sharing and interactive system for aircraft strength testing, It is characterized in that When the display unit is a VR pair of glasses, and when the model processing unit determines that the number of model faces of the three-dimensional model is greater than 200,000, the model processing unit can automatically reduce the number of model faces.

5. According to claim 1, the large-scale digital-analog sharing and interactive system for aircraft strength test, It is characterized in that The shared interaction unit comprises: A model interaction module, configured to perform at least one of the following operations on the model in the display unit in response to a human operation: rotation, scaling, translation, hiding, and display; A model animation rendering module, for performing at least one of the following operations on the model in the display unit in response to a human operation: disassembly, assembly, installation animation, installation precautions, force transmission path analysis, details, and connection analysis; The human-computer interaction module is used to open or close the model in the display unit in response to human operation, and to select or switch between the model interaction module and the model animation rendering module in response to human operation.

6. The large-scale digital-analog sharing interactive system for aircraft strength test according to claim 5, It is characterized in that There are multiple display units, and the multiple display units are connected via a wired or wireless network; Correspondingly, the shared interaction unit also includes: A conference sharing module, used for sharing the model information in any current display unit to other display units in response to personnel operation; Correspondingly, the human-computer interaction module is also used for: The responding personnel operates to select or switch between the model interaction module, the model animation rendering module or the conference sharing module.

7. A large-scale digital model sharing and interactive method for aircraft strength test, It is characterized in that The steps include: Step 1: Establish a three-dimensional test model according to the aircraft strength test plan; Step 2: converting the three-dimensional model into a model file in a predetermined format; Step 3: Create a corresponding material map according to the model material in the model file, and replace the material shader of the model component in the model file with a shader that meets the display performance of the predetermined platform; Step 4: Display the model processed in step 3; Step 5: respond to a predetermined human-computer interaction gesture and perform corresponding operations on the model displayed in step 4.

8. The large-scale digital-analog sharing and interactive method for aircraft strength test according to claim 7, It is characterized in that In the step 2, before converting the three-dimensional model into a model file in a predetermined format, the following steps are also included: Determining the number of model faces of the three-dimensional model; and According to different display requirements in step 4, the number of model faces of the three-dimensional model is processed accordingly.

9. The large-scale digital-analog sharing and interactive method for aircraft strength test according to claim 7, It is characterized in that In the step 5, performing corresponding operations on the model displayed in the step 4 in response to a predetermined human-computer interaction gesture specifically includes the following steps: Model interaction step, responding to the operator's operation, performing at least one of the following operations on the model displayed in step 4: rotation, scaling, translation, hiding and displaying; Model animation rendering step, responding to personnel operation to perform at least one of the following operations on the model displayed in step 4: disassembly, assembly, installation animation, installation precautions, force transmission path analysis, details and connection analysis; The human-computer interaction step, the response personnel operation to open or close the model displayed in the step four, and the response personnel operation to select or switch between the model interaction step or the model animation rendering step.

10. The large-scale digital-analog sharing and interactive method for aircraft strength test according to claim 7, It is characterized in that The step five also includes: Meeting sharing steps and responder operations share any model currently displayed via a wired or wireless network; Correspondingly, at this time, the human-computer interaction step also includes: The responding personnel operates to select or switch between the model interaction step, the model animation rendering step or the conference sharing step.

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