Retrieval method based on domestic aircraft information composite search system

Abstract

The invention discloses a retrieval method based on a domestic aircraft information composite search system, which belongs to the technical field of commercial aircraft digital-analog, and comprises the following steps: S1, starting digital-analog extraction automation, S2, extracting digital-analog geometric information, S3, extracting digital-analog three-view information, S4, constructing a digital-analog feature library, and S5, performing geometric search, three-view search and composite search. The retrieval method of the system aims at solving the problems that the efficiency of digital-analog search is low and the aircraft design process is accelerated through compound search of digital-analog geometric search and three-view search. According to the method, geometric information and view information are automatically fused through an algorithm, accurate matching is ensured, designers can more accurately master manufacturing design details of the aircraft digital-analog assembly and rapidly access and analyze geometric and view features of the digital-analog assembly, and powerful support is provided for effectively improving the design quality and accelerating the aircraft design process.

Description

Technical Field

[0001] The invention relates to the technical field of commercial aircraft digital modeling, and in particular to a retrieval method based on a domestic aircraft information composite search system. Background Art

[0002] Digital model geometry information data is a key component in the aircraft design and manufacturing process. It records in detail the aircraft's three-dimensional geometry, size, material properties, and assembly relationship with other components, including interfaces and connection methods, which is essential to ensure the accuracy and integrity of aircraft assembly. This information is usually used to guide the aircraft's manufacturing and assembly process, especially in the aircraft design stage to optimize the verification and comprehensive adaptation of various scenarios.

[0003] The three-view information of the digital model includes the top view, side view and front view, which are important views to express the appearance and structure of the aircraft. These views show the three-dimensional shape and size of the aircraft and are an important basis for guiding relevant personnel to manufacture and assemble components. In the field of aircraft manufacturing, the three-view of the digital model is an indispensable part of the aircraft from conceptual design to final manufacturing process, and is crucial for aircraft design, manufacturing and maintenance.

[0004] At present, the search for aircraft digital models is done manually, and the search results are poor and time-consuming. In order to meet the needs of rapid development and delivery of commercial aircraft models such as 919 and 929, and to improve the efficiency of design, manufacturing and assembly, an accurate and fast search method is urgently needed. It is essential to search the existing aircraft digital model component library. This can not only optimize and verify the performance and size of various digital model components, but also reduce manpower investment and speed up the development process. In addition, it can further improve the design efficiency and quality of typical aircraft parts, reduce duplication of work, shorten design time, and thus improve R&D efficiency. Summary of the invention

[0005] The present invention aims to realize a retrieval method based on a domestic aircraft information composite search system. The retrieval method of the system aims to solve the problem of low efficiency of digital model search and accelerate the aircraft design process through a composite search of digital model geometry search and three-view search. The algorithm automatically integrates geometry and view information to ensure accurate matching, allowing designers to more accurately grasp the manufacturing design details of aircraft digital model components and quickly access and analyze the geometry and view features of the digital model, providing strong support for effectively improving design quality and accelerating the aircraft design process.

[0006] In order to achieve the above effect, the present invention provides the following technical solution: a retrieval method based on a domestic aircraft information composite search system, comprising the following steps:

[0007] S1. Start the automation of digital-analog extraction.

[0008] S2. Extract digital model geometry information.

[0009] S3. Extract the digital model three-view information.

[0010] S4. Build a digital-analog feature library.

[0011] S5, geometric search, three-view search and compound search.

[0012] Further, the following steps are included: according to the operation steps in S1,

[0013] S101, start the automated digital-analog extraction process.

[0014] S102. After startup, check the digital model geometry information extraction status and the three-view image information extraction status in the digital model monitoring list.

[0015] Further, the following steps are included: according to the operation steps in S2,

[0016] S201. Click the geometry and three-view information extraction button, the system automatically reads the geometry file of the digital model, and calls the geometry information extraction algorithm to extract the geometry information corresponding to each digital model.

[0017] S202. Record whether the geometric information extraction is successful and save the data.

[0018] Further, the following steps are included: according to the operation steps in S3,

[0019] S301, the system automatically reads the three-view file of the digital model, and calls the three-view extraction algorithm to extract the three-view information corresponding to each digital model.

[0020] S302: Record whether the three-view information extraction is successful and save the data.

[0021] Further, the following steps are included: according to the operation steps in S4,

[0022] S401. Automatically synchronize the original information of each digital model from the unified digital model base library, including name, shape, category, painting and external surface treatment.

[0023] S402, constructing a digital-model geometric information feature index using the extracted geometric information, and mapping the digital-model one-to-one to form a digital-model geometric information index library.

[0024] S403, constructing a digital-model three-view information feature index using the extracted three-view information, and mapping the digital-model one-to-one to form a digital-model three-view information index library.

[0025] S404, performing consistency check and updating on the digital model geometry information index library and the digital model three-view information index library.

[0026] Further, the following steps are included: according to the operation steps in S5,

[0027] S501, upload the digital model file on the WEB side for geometric search application.

[0028] S502: Upload 1, 2 and 3 view files on the WEB side to perform three-view search application.

[0029] S503: Upload the digital model file and the view file simultaneously on the WEB end to perform a composite search application.

[0030] The present invention provides a retrieval method based on a domestic aircraft information composite search system, which has the following beneficial effects: The retrieval method of the system aims to solve the problems of low efficiency of digital model search and accelerate the aircraft design process through composite search of digital model geometry search and three-view search. The algorithm automatically integrates geometry and view information to ensure accurate matching, allowing designers to more accurately grasp the manufacturing design details of aircraft digital model components and quickly access and analyze the geometry and view features of the digital model, providing strong support for effectively improving design quality and accelerating the aircraft design process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The present invention is a flowchart of aircraft digital model geometry search, three-view search and composite search of a retrieval method based on a domestic aircraft information composite search system. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] For example, see Figure 1 :

[0034] A retrieval method based on a domestic aircraft information composite search system comprises the following steps:

[0035] S1. Start the automatic extraction of digital models. S101. Start the automatic extraction of digital models. S102. After starting, check the extraction status of digital model geometry information and three-view information in the digital model monitoring list. S2. Extract the geometry information of digital models. S201. Click the geometry and three-view information extraction button. The system automatically reads the geometry file of the digital model and calls the geometry information extraction algorithm to extract the geometry information corresponding to each digital model. S202. Record whether the geometry information extraction is successful and save the data. S3. Extract the three-view information of digital models. S301. The system automatically reads the three-view file of the digital model and calls the three-view extraction algorithm to extract the three-view information corresponding to each digital model. S302. Record whether the three-view information extraction is successful and save the data. S4. Build a digital model feature library. S401. Automatically synchronize each digital model from the unified basic library of digital models. The original information of the model, including name, shape, category, painting and surface treatment, S402, use the extracted geometric information to construct the digital model geometric information feature index, and map the digital model one-to-one to form a digital model geometric information index library, S403, use the extracted three-view information to construct the digital model three-view information feature index, and map the digital model one-to-one to form a digital model three-view information index library, S404, perform consistency check and update on the digital model geometric information index library and the digital model three-view information index library, S5, geometric search, three-view search and compound search, S501, upload the digital model file on the WEB side for geometric search application, S502, upload 1, 2 and 3 view files on the WEB side for three-view search application, S503, upload the digital model file and view file at the same time on the WEB side for compound search application.

[0036] Example 2, see Figure 1 :

[0037] This embodiment provides a method, process and system for complex search of commercial aircraft digital models. The method and system can be applied to the search field of commercial aircraft digital models. The specific process of the method is as follows: Figure 1 As shown, taking a certain type of aircraft digital model as an example, the digital model data, geometric information data, three-view information data, etc. are all in the database server, and the specific implementation process includes:

[0038] Step 1: Start the digital model extraction automation. The specific steps are as follows: Step 101: Click the digital model monitoring menu to enter the page. Step 102: After starting the aircraft digital model extraction automation process, view the aircraft digital model extraction status monitoring list. The contents include part number, file synchronization status, geometric information extraction status, three-view view status, and query operations are supported.

[0039] Step 2: Geometric information extraction status. The specific steps are as follows: Step 201: Click the geometry and three-view information extraction button, and the system automatically starts to extract the geometric information of the digital model. Step 202: Record whether the geometry information extraction is successful and update and save the geometry information extraction status.

[0040] Step 3: Three-view information extraction status. The specific steps are as follows: Step 301: After the geometric information extraction is completed, automatically execute the three-view information extraction and update the three-view extraction status at the same time. Step 302: Record whether the three-view information extraction is successful and update and save the geometric information extraction status.

[0041] Step 4: Constructing the digital model feature library. The specific steps are as follows: Step 401: After the three-view information is extracted, the system automatically synchronizes the original information of each digital model from the unified digital model basic library, including name, shape, category, painting, external surface treatment, etc. Step 402: Use the geometric information extracted from the digital model to construct a feature index. Each digital model corresponds to its corresponding index one by one, thus forming a detailed digital model geometric information index library. Step 403: Use the three-view information extracted from the digital model to construct a feature index. Each digital model corresponds to its corresponding index one by one, thus forming a detailed digital model three-view information index library. Step 404: Traverse the digital model geometric information index library and the digital model three-view information index library, perform consistency check on each index and digital model data, and update the relevant data according to the check result.

[0042] Step 5: Perform a compound search. The specific steps are as follows: Step 501: Click the digital model search page, select the geometry search menu, upload the digital model file, and perform a digital model geometry search, and display the search results. Step 502: Select three-view search, upload the three-view file, perform a digital model three-view search, and display the search results. Step 503: Upload the digital model file and the three-view file at the same time, perform a compound search, and display the search results.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retrieval method based on a composite search system for domestic aircraft information, characterized in that: The following steps are involved: S1, start the digital-analog extraction automation; S2, extracting digital model geometric information; S3, extracting digital model three-view information; S4, construct digital-analog feature library; S5, geometric search, three-view search and compound search.

2. A retrieval method based on a domestic aircraft information composite search system according to claim 1, characterized in that: The following steps are involved: According to the operation steps in S1, S101, start the automated digital-analog extraction automation; S102. After startup, check the digital model geometry information extraction status and the three-view image information extraction status in the digital model monitoring list.

3. The retrieval method based on the domestic aircraft information composite search system according to claim 1 is characterized in that: The method comprises the following steps: according to the operation steps in S2, S201, click the geometry and three-view information extraction button, the system automatically reads the geometry file of the digital model, and calls the geometry information extraction algorithm to extract the geometry information corresponding to each digital model; S202. Record whether the geometric information extraction is successful and save the data.

4. The retrieval method based on the domestic aircraft information composite search system according to claim 1 is characterized in that: The following steps are involved: According to the operation steps in S3, S301, the system automatically reads the three-view file of the digital model, and calls the three-view extraction algorithm to extract the three-view information corresponding to each digital model; S302: Record whether the three-view information extraction is successful and save the data.

5. The retrieval method based on the domestic aircraft information composite search system according to claim 1 is characterized in that: The method comprises the following steps: according to the operation steps in S4, S401. Automatically synchronize the original information of each digital model from the unified digital model base, including name, shape, category, painting and external surface treatment; S402, constructing a digital model geometric information feature index using the extracted geometric information, and mapping the digital model one-to-one to form a digital model geometric information index library; S403, constructing a digital model three-view information feature index using the extracted three-view information, and mapping the digital model one-to-one to form a digital model three-view information index library; S404, performing consistency check and updating on the digital model geometry information index library and the digital model three-view information index library.

6. The retrieval method based on the domestic aircraft information composite search system according to claim 1 is characterized in that: The method comprises the following steps: according to the operation steps in S5, S501, uploading the digital model file on the WEB side for geometric search application; S502, uploading 1, 2 and 3 view files on the WEB side to perform three-view search application; S503: Upload the digital model file and the view file simultaneously on the WEB end to perform a composite search application.

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