Special-shaped component manufacturing and mounting error correction method and system based on three-dimensional laser

Abstract

The invention relates to the technical field of special-shaped components, in particular to a special-shaped component manufacturing and mounting error correction method and system based on three-dimensional laser, and the method comprises the steps: carrying out the polygonal mesh model conversion of actual civil engineering basic data; overlay analysis is conducted on the civil engineering foundation actual model, a preset civil engineering foundation design model and a preset design model of the special-shaped component of the batch, and error correction is conducted on manufacturing parameters of the special-shaped component of the batch according to a first overlay analysis result; according to the second overlay analysis result, error correction is conducted on the manufacturing parameters of the special-shaped components of the batch; and carrying out overlay analysis on the special-shaped component installation actual model and a preset next batch of special-shaped component design models to obtain a third overlay analysis result, and carrying out error correction on the manufacturing parameters of the next batch of special-shaped components according to the third overlay analysis result. The mounting precision and the quality stability of the whole project of the special-shaped component can be remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of special-shaped components, and in particular to a method and system for correcting errors in manufacturing and installing special-shaped components based on three-dimensional laser. Background Art

[0002] In the construction industry, special-shaped components, due to their unique design and complex structural features, are widely used in a wide range of building types. The installation accuracy of special-shaped components is not only directly related to the accurate representation of design intent but also a crucial factor in ensuring the safety and performance of building structures. However, variations in material manufacturing processes, the complex and variable construction environment, temperature fluctuations, and inherent material instability can all lead to unpredictable deformation errors in the foundation structure. These deformation errors are uncertain and complex, and their magnitude and direction are difficult to accurately estimate in advance. If these deformation errors are not promptly and accurately detected and effectively compensated for, on the one hand, the special-shaped components may not be installed smoothly according to the designed dimensions, causing construction delays and increased costs. On the other hand, even if installation is successfully completed, the special-shaped components may suffer significant deformation, which in turn affects the quality of the entire project, undermines the overall aesthetics of the building, and even poses a potential threat to the building's structural safety.

[0003] Chinese Patent Publication No. CN113722789A discloses a virtual assembly method for steel bridges based on 3D laser scanning and process feedback. The method includes the following steps: Step 1: Create a theoretical model in the 3D modeling software AutoCAD; Step 2: Use a 3D laser scanner to collect point cloud data of the steel bridge; Step 3: Preprocess the 3D laser scan data and discuss deviation analysis methods using spatial geometry knowledge; Step 4: Import the processed point cloud data from Step 3 into Geomagic 3D software; Step 5: Use a fitting method to compare the measured simulated assembly model of the components with the corresponding theoretical model to determine the machining errors of the segmented components and ports, as well as the connection errors between components; Step 6: Statistically analyze the relevant data records. This method only compares the measured simulated assembly of steel bridge components with the theoretical model. It is difficult to systematically control and dynamically correct errors in the manufacturing and installation of civil foundations and special-shaped components, resulting in reduced installation accuracy and quality stability of the special-shaped component project. Summary of the Invention

[0004] To this end, the present invention provides a method and system for correcting errors in the manufacturing and installation of special-shaped components based on three-dimensional lasers, so as to overcome the problem in the prior art that it is difficult to systematically control and dynamically correct errors in various links of civil engineering foundations and the manufacturing and installation of special-shaped components, resulting in reduced installation accuracy and quality stability of the overall special-shaped component project.

[0005] To achieve the above objectives, the present invention provides, on the one hand, a method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser, comprising the following steps: S1. Performing a three-dimensional laser scan on the actual condition of the civil engineering foundation after quality inspection to obtain civil engineering foundation data, pre-processing the civil engineering foundation data to obtain actual civil engineering foundation data, and converting the actual civil engineering foundation data into a polygonal mesh model to obtain an actual model of the civil engineering foundation; S2. Performing a superposition analysis on the actual civil foundation model, the preset civil foundation design model, and the preset design model of the current batch of special-shaped components to obtain a first superposition analysis result, and performing error correction on the manufacturing parameters of the current batch of special-shaped components based on the first superposition analysis result; S3. Classifying the special-shaped components according to the first superposition analysis results to obtain a special-shaped component type, and performing a three-dimensional laser scan on each manufactured special-shaped component of the special-shaped component type to obtain special-shaped component data; S4. Preprocessing the special-shaped component data to obtain actual special-shaped component data, converting the actual special-shaped component data into a polygonal mesh model to obtain an actual special-shaped component manufacturing model, and superimposing the actual special-shaped component manufacturing model with the actual civil engineering foundation model to obtain a second superimposition analysis result, and performing error correction on the manufacturing parameters of the current batch of special-shaped components based on the second superimposition analysis result; S5. Performing a three-dimensional laser scan on the installation site after the special-shaped component is installed based on the second superposition analysis result to obtain special-shaped component installation data, preprocessing the special-shaped component installation data to obtain special-shaped component installation data, and converting the special-shaped component installation data into a polygonal mesh model to obtain an actual model of the special-shaped component installation; S6. Perform a superposition analysis on the actual installation model of the special-shaped components and the preset design model of the next batch of special-shaped components to obtain a third superposition analysis result, and perform error correction on the manufacturing parameters of the next batch of special-shaped components based on the third superposition analysis result.

[0006] In this solution, a 3D laser scan is performed on the actual civil foundation after quality inspection to obtain civil foundation data. After preprocessing and polygonal mesh model conversion, an actual civil foundation model is obtained. The actual civil foundation model is superimposed and analyzed with the preset civil foundation design model and the design model of the current batch of special-shaped components to obtain a first superimposition analysis result. Based on this, errors in the manufacturing parameters of the current batch of special-shaped components are corrected. The special-shaped components are graded based on the first superimposition analysis result. The manufactured special-shaped components are 3D laser scanned again to obtain special-shaped component data. After processing and conversion, an actual special-shaped component manufacturing model is obtained. The actual special-shaped component manufacturing model is then superimposed and analyzed with the actual civil foundation model to obtain a second superimposition analysis result. The manufacturing parameters of the current batch of special-shaped components are further corrected. Based on the second superimposition analysis result, a 3D laser scan is performed on the installation site of the installed special-shaped components to obtain special-shaped component installation data. After processing and conversion, an actual special-shaped component installation model is obtained. The actual special-shaped component installation model is superimposed and analyzed with the preset design model of the next batch of special-shaped components to obtain a third superimposition analysis result, which provides a basis for error correction of the manufacturing parameters of the next batch of special-shaped components.

[0007] Compared with the existing technology, the beneficial effect of the present application is that, by performing three-dimensional laser scanning on the actual situation of the civil engineering foundation after quality inspection and constructing an actual model of the civil engineering foundation, the actual model of the civil engineering foundation is superimposed and analyzed with the preset civil engineering foundation design model and the preset design model of the special-shaped components of this batch, the deviation between the civil engineering foundation and the design can be accurately found, and the basis for the first error correction of the manufacturing parameters of this batch of special-shaped components is provided to ensure that the special-shaped components are adapted to the civil engineering foundation. According to the results of the first superposition analysis, the special-shaped components are graded and scanned and modeled again, and the actual manufacturing model of the special-shaped components is superimposed and analyzed with the actual model of the civil engineering foundation. , further corrected the manufacturing parameters, and improved the manufacturing accuracy of this batch of special-shaped components. After the installation of the special-shaped components was completed, the installation site was scanned and an actual model of the special-shaped component installation was constructed. The actual model of the special-shaped component installation was superimposed and analyzed with the preset design model of the next batch of special-shaped components to provide a basis for error correction for the manufacturing parameters of the next batch of special-shaped components. Dynamic control and optimization of errors in the entire process from civil engineering foundation to special-shaped component manufacturing and installation was achieved, ensuring the precise connection of each link, significantly improving the installation accuracy and quality stability of the overall special-shaped component project, and reducing the rework costs and risks caused by errors.

[0008] Furthermore, the step S2 includes the following steps: S21, importing the actual civil foundation model, the preset civil foundation design model, and the preset design model of the special-shaped components of this batch into a three-dimensional digital processing software for superposition analysis to obtain a first superposition analysis result; S22. Obtain a first deviation value D1 based on the first superposition analysis result, compare the first deviation value D1 with a first preset deviation value D0, determine the installation association type between the civil foundation and the subsequent special-shaped components based on the comparison result, and perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the judgment result to obtain a first error correction report, wherein: When D1>D0, the installation association type between the civil engineering foundation and the installation of the special-shaped components is determined to be the civil engineering foundation affecting the installation of the special-shaped components type, and the manufacturing parameters of the special-shaped components of this batch are corrected for errors according to the civil engineering foundation affecting the installation of the special-shaped components type, to obtain the first special-shaped component error correction parameters, and the first special-shaped component error correction parameters and the first superposition analysis results are output as the first error correction report; When D1≤D0, it is determined that the installation association type between the civil engineering foundation and the special-shaped component is that the civil engineering foundation does not affect the installation type of the special-shaped component, and the first superposition analysis unit does not perform error correction on the manufacturing parameters of this batch of special-shaped components.

[0009] In this solution, the preset civil foundation design model refers to a three-dimensional digital model that is created in advance before construction based on engineering design requirements and contains design information such as the shape, size, and position of the civil foundation. The preset design model of this batch of special-shaped components refers to the design model corresponding to the batch of special-shaped components currently under construction or analysis. The first superposition analysis result refers to the result obtained after the actual model of the civil foundation, the preset civil foundation design model, and the preset design model of this batch of special-shaped components are imported into the three-dimensional digital processing software for superposition analysis. The first deviation value D1 refers to the value calculated based on the first superposition analysis result, which is used to quantify the difference between the civil foundation and the design model of this batch of special-shaped components. The degree of difference in key parts or key parameters, the first preset deviation value D0 refers to the threshold value set for the deviation between the actual model of the civil foundation, the preset civil foundation design model and the preset special-shaped component design model, for example 70%, the manufacturing parameters of the special-shaped component refer to the key parameters of the shape, size, structural characteristics and manufacturing process of the special-shaped component involved in the manufacturing process of the special-shaped component, and the first special-shaped component error correction parameter refers to the parameter for adjusting and correcting the manufacturing parameters of this batch of special-shaped components when it is found through superposition analysis that the first deviation value D1>D0 and it is determined that the installation association type between the civil foundation and the special-shaped component installation is the civil foundation affecting the installation type of the special-shaped component.

[0010] By importing the actual model of the civil foundation, the preset civil foundation design model and the preset design model of the current batch of special-shaped components into the three-dimensional digital processing software for superposition analysis, a first superposition analysis result is obtained, and then a first deviation value is obtained and compared with the first preset deviation value in the preset special-shaped component installation standard. The installation association type between the civil foundation and the subsequent special-shaped components can be accurately judged. When it is determined that the civil foundation affects the installation type of the special-shaped components, the manufacturing parameters of the current batch of special-shaped components are promptly corrected for errors and an error correction report is output, which effectively avoids the installation problems of special-shaped components caused by civil foundation deviations and improves the accuracy and quality of the installation of special-shaped components.

[0011] Furthermore, the step S3 includes the following steps: S31. When it is determined that the installation association type between the civil engineering foundation and the special-shaped component is that the civil engineering foundation does not affect the installation type of the special-shaped component, calculate the special-shaped component complexity index SCI based on the amount of all outer contour data A of the special-shaped component, the number B of different angle types in the outer contour of the special-shaped component, and the number C of inwardly concave areas on the surface of the special-shaped component; S32. Compare the special-shaped component complexity index SCI with the first preset threshold value T1, the second preset threshold value T2 and the third preset threshold value T3, judge the type of each batch of special-shaped components after manufacturing based on the comparison results, and perform three-dimensional laser scanning on the special-shaped components after manufacturing based on the judgment results to obtain special-shaped component data, and set T1<T2<T3.

[0012] In this solution, the first preset threshold T1 refers to the critical complexity index for dividing basic special-shaped components from other types of components, the second preset threshold T2 refers to the critical complexity index for dividing simple special-shaped components from key special-shaped components, and the third preset threshold T3 refers to the critical complexity index for dividing key special-shaped components from complex special-shaped components.

[0013] By comparing the special-shaped component complexity index SCI with the first preset threshold T1, the second preset threshold T2 and the third preset threshold T3, the type of special-shaped components after each batch of manufacturing can be accurately determined, and then different scanning strategies can be adopted according to different types, and finally comprehensive and targeted special-shaped component manufacturing data can be obtained.

[0014] Furthermore, the mathematical expression of the special-shaped component complexity index SCI is: ,in, Represents the weight coefficient used to adjust the amount of all outer contour data A of the special-shaped component, Represents the weight coefficient used to adjust the number B of different angle types in the outer contour of the special-shaped component, represents the weight coefficient used to adjust the number C of inwardly concave areas on the surface of the special-shaped component, .

[0015] In this solution, the amount of all outer contour data A of the special-shaped component refers to the total amount of data related to the outer contour of the special-shaped component, such as the outer contour shape, size, coordinate data of each point on the outer contour and curve length data of the special-shaped component; the number of different angle types B in the outer contour of the special-shaped component refers to the fact that the outer contour of the special-shaped component may have multiple angle types, such as right angles, acute angles, and obtuse angles; the number of inwardly concave areas on the surface of the special-shaped component C refers to the areas on the surface of the special-shaped component that may be concave inward.

[0016] By comprehensively considering the amount of all outer contour data A of special-shaped components, the number of different angle types B in the outer contour of special-shaped components, and the number of inward-concave areas on the surface of special-shaped components C, and calculating the special-shaped component complexity index SCI based on the corresponding weight coefficients, the complexity of special-shaped components can be quantitatively evaluated more scientifically and comprehensively.

[0017] Furthermore, in said S4, the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation are imported into the three-dimensional digital processing software for superposition analysis to obtain a second superposition analysis result, a second deviation value E1 is obtained according to the second superposition analysis result, and the second deviation value E1 is compared with the second preset deviation value E0, and the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation is judged according to the comparison result, and the manufacturing parameters of the special-shaped components of this batch are corrected according to the judgment result to obtain a second error correction report, wherein: When E1≤E0, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation is determined to be up to standard, and no error correction is performed on the manufacturing parameters of this batch of special-shaped components; When E1>E0, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is determined to be substandard, and the manufacturing parameters of this batch of special-shaped components are corrected according to the second superposition analysis results to obtain the second special-shaped component error correction parameters, and the second special-shaped component error correction parameters and the second superposition analysis results are output as a second error correction report.

[0018] In this solution, the second superposition analysis result refers to the result obtained after importing the actual manufacturing model of the special-shaped component and the actual model of the civil foundation into the three-dimensional digital processing software for superposition analysis. The second deviation value E1 refers to the numerical value calculated based on the second superposition analysis result, which is used to quantify the degree of difference between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation in key parts or key parameters. The second preset deviation value E0 refers to the threshold set for the deviation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation. The spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation refers to the degree of spatial matching between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation. The second special-shaped component error correction parameter refers to the parameter for adjusting and correcting the manufacturing parameters of this batch of special-shaped components so that the special-shaped component can be well adapted to the civil foundation when the second deviation value E1>E0 and the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is determined to be substandard.

[0019] By importing the actual manufacturing model of the special-shaped component and the actual model of the civil foundation into the three-dimensional digital processing software for superposition analysis to obtain a second superposition analysis result, and then obtaining a second deviation value and comparing it with the second preset deviation value in the preset special-shaped component installation standard, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation can be accurately judged. When it is judged to be in a non-standard state, the manufacturing parameters of this batch of special-shaped components are corrected in time and an error correction report is output, which effectively avoids installation problems caused by manufacturing errors of special-shaped components and improves the installation adaptability between special-shaped components and civil foundations.

[0020] Furthermore, in said S5, when it is determined that the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is up to standard, the three-dimensional laser scanning method for installing the special-shaped component is determined according to the type of the special-shaped component, and the installation site after the installation of the special-shaped component is completed is three-dimensionally laser scanned according to the three-dimensional laser scanning method for installing the special-shaped component to obtain the special-shaped component installation data.

[0021] In this solution, the three-dimensional laser scanning method for installing special-shaped components refers to a method for performing three-dimensional laser scanning on the special-shaped components after installation, which is determined according to the specific type of the special-shaped components.

[0022] After the manufacturing of special-shaped components and the spatial adaptation of the civil foundation model meet the standards, the installation 3D laser scanning method is determined according to the component type. The installation site is scanned to obtain data, which can accurately verify the installation quality, provide a reliable basis for subsequent maintenance and management, and ensure the installation effect of special-shaped components.

[0023] Furthermore, the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components are imported into the three-dimensional digital processing software for superposition analysis to obtain a third superposition analysis result, and a third deviation value F1 is obtained based on the third superposition analysis result. The third deviation value F1 is compared with the third preset deviation value F0 in the preset special-shaped component installation standard. Based on the comparison result, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is judged, and based on the judgment result, the manufacturing parameters of the next batch of special-shaped components are corrected for errors to obtain a third error correction report, in which: When F1≤F0, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is determined to be in compliance with the standard, and the error correction report is not output; When F1>F0, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is determined to be substandard, and the manufacturing parameters of the next batch of special-shaped components are corrected according to the third superposition analysis results to obtain the third special-shaped component error correction parameters, and the third special-shaped component error correction parameters and the third superposition analysis results are output as a third error correction report.

[0024] In this solution, the preset design model for the next batch of special-shaped components refers to the design model for subsequent batches of components belonging to the same project or engineering phase as the currently installed special-shaped components. The third overlay analysis result refers to the result obtained by the third overlay analysis unit after importing the actual installation model of the special-shaped components and the preset design model for the next batch of special-shaped components into the three-dimensional digital processing software for overlay analysis. The third deviation value F1 refers to a value calculated based on the third overlay analysis result and is used to quantify the degree of difference in key parts or key parameters between the actual installation model of the special-shaped components and the preset design model for the next batch of special-shaped components. The third preset deviation value F0 refers to the threshold value set in the preset special-shaped component installation standard for the deviation between the actual installation model of the special-shaped components and the preset design model for the next batch of special-shaped components. The third special-shaped component error correction parameter refers to the adjustment and correction of the manufacturing parameters of the next batch of special-shaped components when the third deviation value F1>F0 determines that the spatial fit between the actual installation model of the special-shaped components and the preset design model for the next batch of special-shaped components is substandard, so that the next batch of special-shaped components can be well fitted with the installed special-shaped components and the civil engineering foundation.

[0025] By importing the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components into the three-dimensional digital processing software for superposition analysis to obtain the third superposition analysis result, and then obtaining the third deviation value and comparing it with the third preset deviation value in the preset special-shaped component installation standard, it is possible to accurately judge the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components. When it is determined to be a substandard state, the manufacturing parameters of the next batch of special-shaped components are corrected in time and an error correction report is output, which effectively avoids the installation problem of the next batch of special-shaped components due to the deviation of the installed special-shaped components, and improves the quality and adaptability of the overall installation of special-shaped components.

[0026] On the other hand, the present invention also provides a three-dimensional laser-based special-shaped component manufacturing and installation error correction system, comprising: The civil engineering foundation actual model construction module is used to perform 3D laser scanning on the actual civil engineering foundation after quality inspection to obtain civil engineering foundation data, pre-process the civil engineering foundation data to obtain actual civil engineering foundation data, and convert the actual civil engineering foundation data into a polygonal mesh model to obtain the actual civil engineering foundation model; a first superposition analysis module, configured to perform superposition analysis on the actual civil foundation model, the preset civil foundation design model, and the preset design model of the current batch of special-shaped components, obtain a first superposition analysis result, and perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the first superposition analysis result; a module for constructing an actual model for manufacturing special-shaped components, configured to classify the special-shaped components according to the first superposition analysis results to obtain a type of special-shaped component, perform three-dimensional laser scanning on each manufactured special-shaped component of the special-shaped component type to obtain special-shaped component data, pre-process the special-shaped component data to obtain actual special-shaped component data, and convert the actual special-shaped component data into a polygonal mesh model to obtain an actual model for manufacturing the special-shaped component; The second superposition analysis module is used to perform superposition analysis on the actual manufacturing model of the special-shaped components and the actual model of the civil engineering foundation to obtain a second superposition analysis result, and to perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the second superposition analysis result; a module for constructing an actual model of the installation of a special-shaped component, configured to perform a three-dimensional laser scan of the installation site after the installation of the special-shaped component is completed based on the second superposition analysis result to obtain special-shaped component installation data, pre-process the special-shaped component installation data to obtain special-shaped component installation data, and convert the special-shaped component installation data into a polygonal mesh model to obtain an actual model of the installation of the special-shaped component; The third superposition analysis module is used to perform superposition analysis on the actual installation model of the special-shaped components and the preset design model of the next batch of special-shaped components to obtain the third superposition analysis results, and correct the errors of the manufacturing parameters of the next batch of special-shaped components based on the third superposition analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the process of a method for manufacturing and correcting installation errors of special-shaped components based on three-dimensional laser according to an embodiment of the present invention; Figure 2 Schematic diagram of the structure of a three-dimensional laser-based special-shaped component manufacturing and installation error correction system according to an embodiment of the present invention; Figure 3 Schematic diagram of the multi-model superposition analysis process for the manufacture and installation of special-shaped components based on three-dimensional laser according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods: See also Figure 1 As shown, it is a flow chart of a method for manufacturing and correcting installation errors of special-shaped components based on three-dimensional laser according to an embodiment of the present invention, which includes the following steps: S1. Performing a three-dimensional laser scan on the actual condition of the civil engineering foundation after quality inspection to obtain civil engineering foundation data, pre-processing the civil engineering foundation data to obtain actual civil engineering foundation data, and converting the actual civil engineering foundation data into a polygonal mesh model to obtain an actual model of the civil engineering foundation; S2. Performing a superposition analysis on the actual civil foundation model, the preset civil foundation design model, and the preset design model of the current batch of special-shaped components to obtain a first superposition analysis result, and performing error correction on the manufacturing parameters of the current batch of special-shaped components based on the first superposition analysis result; S3. Classifying the special-shaped components according to the first superposition analysis results to obtain a special-shaped component type, and performing a three-dimensional laser scan on each manufactured special-shaped component of the special-shaped component type to obtain special-shaped component data; S4. Preprocessing the special-shaped component data to obtain actual special-shaped component data, converting the actual special-shaped component data into a polygonal mesh model to obtain an actual special-shaped component manufacturing model, and superimposing the actual special-shaped component manufacturing model with the actual civil engineering foundation model to obtain a second superimposition analysis result, and performing error correction on the manufacturing parameters of the current batch of special-shaped components based on the second superimposition analysis result; S5. Performing a three-dimensional laser scan on the installation site after the special-shaped component is installed based on the second superposition analysis result to obtain special-shaped component installation data, preprocessing the special-shaped component installation data to obtain special-shaped component installation data, and converting the special-shaped component installation data into a polygonal mesh model to obtain an actual model of the special-shaped component installation; S6. Perform a superposition analysis on the actual installation model of the special-shaped components and the preset design model of the next batch of special-shaped components to obtain a third superposition analysis result, and perform error correction on the manufacturing parameters of the next batch of special-shaped components based on the third superposition analysis result.

[0029] In this example, after the civil foundation quality inspection is complete, a 3D laser scanner, specifically a Leica RTC360, is used to perform a full-scale scan of the construction site. The scanning process involves setting up multiple scanning stations within the civil foundation area to ensure coverage of all key areas (such as the foundation, piers, and underground pipelines). The scanner automatically rotates to collect point cloud data, recording the foundation's geometric dimensions, flatness, elevation, and other information. The multi-station cloud is then stitched together to create a complete model. Finally, a comparison report is generated between the 3D point cloud model of the civil foundation and the BIM model, which is used to analyze deviations from the design drawings.

[0030] Use drone-mounted scanners or spider-lift scanners at the installation site to scan high-altitude or complex structural special-shaped components (such as domes and cables). The scanning process includes determining the scanning range through GPS or control point layout; combining ground stations and aerial scanning (such as drones) to obtain the complete posture of the component after installation; and comparing the scan data before and after installation to detect welding deformation, connection deviation, etc.

[0031] Using a statistical filtering algorithm, the civil engineering foundation data, special-shaped component data, and special-shaped component installation data are filtered to obtain corresponding clean point cloud data. This clean point cloud data is then mapped to a preset standard coordinate system using a rigid body transformation matrix to obtain the corresponding actual civil engineering foundation data, actual special-shaped component data, and special-shaped component installation data. In this embodiment, the three types of scanned data—civil engineering foundation, special-shaped component manufacturing, and installation—are processed using statistical filtering algorithms (such as the StatisticalOutlierRemoval tool in the PCL library). By analyzing the neighborhood distribution characteristics of each point in the point cloud, outliers and noise data are removed, retaining the valid point cloud. Corresponding control points (such as building corners and component feature points) are selected between the filtered point cloud data and a preset standard coordinate system (such as the BIM model coordinate system). The rigid body transformation matrix (including rotation and translation parameters) is calculated using the ICP algorithm or SVD decomposition.

[0032] In this embodiment, the three-dimensional digital processing software is Geomagic Studio software. For the qualified data, the polygonal mesh model conversion is performed using Geomagic Studio software, including: converting the actual civil engineering foundation data, the actual special-shaped component data and the special-shaped component installation data into triangular mesh models respectively, improving the model quality through simplification and smoothing, and generating the actual model of the civil engineering foundation, the actual model of the special-shaped component manufacturing and the actual model of the special-shaped component installation.

[0033] Specifically, S2 includes the following steps: S21, importing the actual civil foundation model, the preset civil foundation design model, and the preset design model of the special-shaped components of this batch into a three-dimensional digital processing software for superposition analysis to obtain a first superposition analysis result; S22. Obtain a first deviation value D1 based on the first superposition analysis result, compare the first deviation value D1 with a first preset deviation value D0, determine the installation association type between the civil foundation and the subsequent special-shaped components based on the comparison result, and perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the judgment result to obtain a first error correction report, wherein: When D1>D0, the installation association type between the civil engineering foundation and the installation of the special-shaped components is determined to be the civil engineering foundation affecting the installation of the special-shaped components type, and the manufacturing parameters of the special-shaped components of this batch are corrected for errors according to the civil engineering foundation affecting the installation of the special-shaped components type, to obtain the first special-shaped component error correction parameters, and the first special-shaped component error correction parameters and the first superposition analysis results are output as the first error correction report; When D1≤D0, it is determined that the installation association type between the civil engineering foundation and the special-shaped component is the civil engineering foundation does not affect the installation type of the special-shaped component, and the first superposition analysis unit does not perform error correction on the manufacturing parameters of this batch of special-shaped components.

[0034] Specifically, S3 includes the following steps: S31. When it is determined that the installation association type between the civil engineering foundation and the special-shaped component is that the civil engineering foundation does not affect the installation type of the special-shaped component, calculate the special-shaped component complexity index SCI based on the amount of all outer contour data A of the special-shaped component, the number B of different angle types in the outer contour of the special-shaped component, and the number C of inwardly concave areas on the surface of the special-shaped component; S32, comparing the special-shaped component complexity index SCI with the first preset threshold value T1, the second preset threshold value T2, and the third preset threshold value T3, judging the type of each batch of special-shaped components after manufacture based on the comparison results, and performing three-dimensional laser scanning on the special-shaped components after manufacture based on the judgment results to obtain special-shaped component data, setting T1 < T2 < T3, where: When SCI≤T1, the type of the manufactured special-shaped component is determined to be a basic special-shaped component, and the basic special-shaped component is sampled to obtain a first sampling sample, and the first sampling sample is subjected to three-dimensional laser scanning to obtain basic special-shaped component data, and the basic special-shaped component data is added to the special-shaped component data; When T1<SCI≤T2, the type of the manufactured special-shaped component is determined to be a simple special-shaped component, and the simple special-shaped component is sampled to obtain a second sampling sample, and the second sampling sample is subjected to three-dimensional laser scanning to obtain simple special-shaped component data, and the simple special-shaped component data is added to the special-shaped component data; When T2<SCI≤T3, the type of the manufactured special-shaped component is determined to be a key special-shaped component, and a three-dimensional laser scanning is performed on the key special-shaped component to obtain key special-shaped component data, and the key special-shaped component data is added to the special-shaped component data; When SCI>T3, the type of the manufactured special-shaped component is determined to be a complex special-shaped component, and the complex special-shaped component is subjected to three-dimensional laser scanning to obtain complex special-shaped component data, and the complex special-shaped component data is added to the special-shaped component data.

[0035] In this embodiment, the first sampling sample refers to a partial component sample selected from the basic special-shaped components that have been manufactured when the special-shaped component complexity index SCI≤T1 is judged to be a basic special-shaped component; the second sampling sample refers to a partial component sample selected from the simple special-shaped components that have been manufactured when T1<SCI≤T2 and the special-shaped component is judged to be a simple special-shaped component.

[0036] Specifically, the mathematical expression of the special-shaped component complexity index SCI is: ,in, Represents the weight coefficient used to adjust the amount of all outer contour data A of the special-shaped component, Represents the weight coefficient used to adjust the number B of different angle types in the outer contour of the special-shaped component, represents the weight coefficient used to adjust the number C of inwardly concave areas on the surface of the special-shaped component, .

[0037] Specifically, in S4, the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation are imported into the three-dimensional digital processing software for superposition analysis to obtain a second superposition analysis result. A second deviation value E1 is obtained based on the second superposition analysis result, and the second deviation value E1 is compared with the second preset deviation value E0. Based on the comparison result, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation is judged, and according to the judgment result, the manufacturing parameters of this batch of special-shaped components are corrected for errors to obtain a second error correction report, in which: When E1≤E0, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation is determined to be up to standard, and no error correction is performed on the manufacturing parameters of this batch of special-shaped components; When E1>E0, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is determined to be substandard, and the manufacturing parameters of this batch of special-shaped components are corrected according to the second superposition analysis results to obtain the second special-shaped component error correction parameters, and the second special-shaped component error correction parameters and the second superposition analysis results are output as a second error correction report.

[0038] Specifically, in S5, when it is determined that the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is up to standard, the three-dimensional laser scanning method for installing the special-shaped component is determined according to the type of the special-shaped component, and the installation site after the installation of the special-shaped component is completed is three-dimensionally laser scanned according to the three-dimensional laser scanning method to obtain the special-shaped component installation data.

[0039] In this embodiment, if the irregularly shaped component is a critical or complex irregularly shaped component, a high-precision, wide-range terrestrial 3D laser scanner can be used, with appropriate planning of scanning stations and paths to ensure full coverage of the component. If the irregularly shaped component is a basic or simple irregularly shaped component, a portable 3D laser scanner can be used to perform 3D laser scanning of a sample of the basic or simple irregularly shaped components, with flexible adjustment of the scanning angle and distance.

[0040] Specifically, the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components are imported into the three-dimensional digital processing software for superposition analysis to obtain a third superposition analysis result, and a third deviation value F1 is obtained based on the third superposition analysis result. The third deviation value F1 is compared with the third preset deviation value F0 in the preset special-shaped component installation standard. According to the comparison result, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is judged, and according to the judgment result, the manufacturing parameters of the next batch of special-shaped components are corrected for errors to obtain a third error correction report, in which: When F1≤F0, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is determined to be in compliance with the standard, and the error correction report is not output; When F1>F0, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is determined to be substandard, and the manufacturing parameters of the next batch of special-shaped components are corrected according to the third superposition analysis results to obtain the third special-shaped component error correction parameters, and the third special-shaped component error correction parameters and the third superposition analysis results are output as a third error correction report.

[0041] See also Figure 2 As shown, it is a structural schematic diagram of a three-dimensional laser-based special-shaped component manufacturing and installation error correction system according to an embodiment of the present invention, comprising: The civil engineering foundation actual model construction module is used to perform 3D laser scanning on the actual civil engineering foundation after quality inspection to obtain civil engineering foundation data, pre-process the civil engineering foundation data to obtain actual civil engineering foundation data, and convert the actual civil engineering foundation data into a polygonal mesh model to obtain the actual civil engineering foundation model; a first superposition analysis module, configured to perform superposition analysis on the actual civil foundation model, the preset civil foundation design model, and the preset design model of the current batch of special-shaped components, obtain a first superposition analysis result, and perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the first superposition analysis result; a module for constructing an actual model for manufacturing special-shaped components, configured to classify the special-shaped components according to the first superposition analysis results to obtain a type of special-shaped component, perform three-dimensional laser scanning on each manufactured special-shaped component of the special-shaped component type to obtain special-shaped component data, pre-process the special-shaped component data to obtain actual special-shaped component data, and convert the actual special-shaped component data into a polygonal mesh model to obtain an actual model for manufacturing the special-shaped component; The second superposition analysis module is used to perform superposition analysis on the actual manufacturing model of the special-shaped components and the actual model of the civil engineering foundation to obtain a second superposition analysis result, and to perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the second superposition analysis result; a module for constructing an actual model of the installation of a special-shaped component, configured to perform a three-dimensional laser scan of the installation site after the installation of the special-shaped component is completed based on the second superposition analysis result to obtain special-shaped component installation data, pre-process the special-shaped component installation data to obtain special-shaped component installation data, and convert the special-shaped component installation data into a polygonal mesh model to obtain an actual model of the installation of the special-shaped component; The third superposition analysis module is used to perform superposition analysis on the actual installation model of the special-shaped components and the preset design model of the next batch of special-shaped components to obtain the third superposition analysis results, and correct the errors of the manufacturing parameters of the next batch of special-shaped components based on the third superposition analysis results.

[0042] See also Figure 3 As shown, it is a schematic diagram of the multi-model superposition analysis process for the manufacturing and installation of special-shaped components based on three-dimensional laser according to an embodiment of the present invention, including: Once the civil foundation (including steel structure) is completed, quality inspected, and the structure is stable, a detailed site survey is conducted to determine the 3D laser scanning method, scanning points, and target setting points based on the type of 3D scanner, building conditions, and location of special-shaped components. At the same time, ensure that each measurement site has at least two common target points to facilitate effective subsequent data integration. Import the data into Geomagic Studio software to pre-process the civil foundation data, including denoising, noise reduction, filtering, segmentation, splicing, gridding, and labeling. Based on the actual on-site measured dimensions, perform data quality inspection on the point cloud data to ensure data integrity and dimensional accuracy of less than or equal to 0.1mm. Convert the quality-inspected point cloud data into an actual model of the civil foundation.

[0043] The actual civil foundation model and the pre-designed civil foundation model were imported into Geomagic Studio for alignment, registration, and best-fit alignment to ensure spatial consistency. Geomagic Studio's error analysis tools were used to calculate the deviation between the actual and pre-designed civil foundation models, generating a deviation spectrum to visually display the error distribution. The pre-designed special-shaped component models for this batch were imported into Geomagic Studio for alignment, registration, and best-fit alignment with the actual civil foundation model to ensure spatial consistency. Geomagic Studio's comparison tool analyzed the gaps and interferences between the pre-designed special-shaped component models and the actual civil foundation model, displaying the differences using color coding. Geomagic Studio's report generation function compiled the analysis results and assessment conclusions into a report. The report included detailed measurement data, charts, and images. Based on these analysis results, a comprehensive assessment was made as to whether the current civil foundation would affect the subsequent installation of special-shaped components. If so, the manufacturing parameters for the special-shaped components in this batch were redesigned. If not, the special-shaped components could be manufactured.

[0044] Based on the budget, construction period and other conditions, 3D laser scanning can be performed on the special-shaped components after manufacturing. 3D laser scanning quality inspection can be selectively performed on basic special-shaped components and simple special-shaped components. For key special-shaped components and complex special-shaped components, it is recommended to use 3D laser scanning for all quality inspections. The actual manufacturing model of the special-shaped components and the actual manufacturing model of the special-shaped components are imported into Geomagic Studio software for superposition analysis. If it affects the subsequent installation of special-shaped components, the manufacturing parameters of this batch of special-shaped components are redesigned. If it does not affect the subsequent installation of special-shaped components, the special-shaped components are installed, and a 3D laser scan is performed on the installation site after the special-shaped components are installed. The preset design model of the next batch of special-shaped components and the actual installation model of the special-shaped components are imported into Geomagic Studio software for superposition analysis. If it affects the subsequent installation of special-shaped components, the manufacturing parameters of the next batch of special-shaped components are redesigned. If it does not affect the subsequent installation of special-shaped components, the next batch of special-shaped components are manufactured.

[0045] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme are not described in detail here. Ordinary technicians in the field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser, characterized by: The following steps are involved: S1. Performing a three-dimensional laser scan on the actual condition of the civil engineering foundation after quality inspection to obtain civil engineering foundation data, pre-processing the civil engineering foundation data to obtain actual civil engineering foundation data, and converting the actual civil engineering foundation data into a polygonal mesh model to obtain an actual model of the civil engineering foundation; S2. Performing a superposition analysis on the actual civil foundation model, the preset civil foundation design model, and the preset design model of the current batch of special-shaped components to obtain a first superposition analysis result, and performing error correction on the manufacturing parameters of the current batch of special-shaped components based on the first superposition analysis result; S3. Classifying the special-shaped components according to the first superposition analysis results to obtain a special-shaped component type, and performing a three-dimensional laser scan on each manufactured special-shaped component of the special-shaped component type to obtain special-shaped component data; S4. Preprocessing the special-shaped component data to obtain actual special-shaped component data, converting the actual special-shaped component data into a polygonal mesh model to obtain an actual special-shaped component manufacturing model, and superimposing the actual special-shaped component manufacturing model with the actual civil engineering foundation model to obtain a second superimposition analysis result, and performing error correction on the manufacturing parameters of the current batch of special-shaped components based on the second superimposition analysis result; S5. Performing a three-dimensional laser scan on the installation site after the special-shaped component is installed based on the second superposition analysis result to obtain special-shaped component installation data, preprocessing the special-shaped component installation data to obtain special-shaped component installation data, and converting the special-shaped component installation data into a polygonal mesh model to obtain an actual model of the special-shaped component installation; S6. Perform a superposition analysis on the actual installation model of the special-shaped components and the preset design model of the next batch of special-shaped components to obtain a third superposition analysis result, and perform error correction on the manufacturing parameters of the next batch of special-shaped components based on the third superposition analysis result.

2. The method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser according to claim 1, characterized in that: The S2 comprises the following steps: S21, importing the actual civil foundation model, the preset civil foundation design model, and the preset design model of the special-shaped components of this batch into a three-dimensional digital processing software for superposition analysis to obtain a first superposition analysis result; S22. Obtain a first deviation value D1 based on the first superposition analysis result, compare the first deviation value D1 with a first preset deviation value D0, determine the installation association type between the civil foundation and the subsequent special-shaped components based on the comparison result, and perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the judgment result to obtain a first error correction report, wherein: When D1>D0, the installation association type between the civil engineering foundation and the installation of the special-shaped components is determined to be the civil engineering foundation affecting the installation of the special-shaped components type, and the manufacturing parameters of the special-shaped components of this batch are corrected for errors according to the civil engineering foundation affecting the installation of the special-shaped components type, to obtain the first special-shaped component error correction parameters, and the first special-shaped component error correction parameters and the first superposition analysis results are output as the first error correction report; When D1≤D0, it is determined that the installation association type between the civil engineering foundation and the special-shaped component is that the civil engineering foundation does not affect the installation type of the special-shaped component, and the first superposition analysis unit does not perform error correction on the manufacturing parameters of this batch of special-shaped components.

3. The method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser according to claim 2, characterized in that: The S3 includes the following steps: S31. When it is determined that the installation association type between the civil engineering foundation and the special-shaped component is that the civil engineering foundation does not affect the installation type of the special-shaped component, calculate the special-shaped component complexity index SCI based on the amount of all outer contour data A of the special-shaped component, the number B of different angle types in the outer contour of the special-shaped component, and the number C of inwardly concave areas on the surface of the special-shaped component; S32. Compare the special-shaped component complexity index SCI with the first preset threshold value T1, the second preset threshold value T2 and the third preset threshold value T3, judge the type of each batch of special-shaped components after manufacturing based on the comparison results, and perform three-dimensional laser scanning on the special-shaped components after manufacturing based on the judgment results to obtain special-shaped component data, and set T1<T2<T3.

4. The method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser according to claim 3, characterized in that: The mathematical expression of the special-shaped component complexity index SCI is: ,in, Represents the weight coefficient used to adjust the amount of all outer contour data A of the special-shaped component, Represents the weight coefficient used to adjust the number B of different angle types in the outer contour of the special-shaped component, represents the weight coefficient used to adjust the number C of inwardly concave areas on the surface of the special-shaped component, .

5. The method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser according to claim 1, characterized in that: In said S4, the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation are imported into the three-dimensional digital processing software for superposition analysis to obtain a second superposition analysis result, a second deviation value E1 is obtained according to the second superposition analysis result, and the second deviation value E1 is compared with the second preset deviation value E0, and the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation is judged according to the comparison result, and the manufacturing parameters of the special-shaped components of this batch are corrected according to the judgment result to obtain a second error correction report, wherein: When E1≤E0, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil engineering foundation is determined to be up to standard, and no error correction is performed on the manufacturing parameters of this batch of special-shaped components; When E1>E0, the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is determined to be substandard, and the manufacturing parameters of this batch of special-shaped components are corrected according to the second superposition analysis results to obtain the second special-shaped component error correction parameters, and the second special-shaped component error correction parameters and the second superposition analysis results are output as a second error correction report.

6. The method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser according to claim 5, characterized in that: In said S5, when it is determined that the spatial adaptation between the actual manufacturing model of the special-shaped component and the actual model of the civil foundation is up to standard, the three-dimensional laser scanning method for installing the special-shaped component is determined according to the type of the special-shaped component, and the installation site after the installation of the special-shaped component is completed is three-dimensionally laser scanned according to the three-dimensional laser scanning method to obtain the special-shaped component installation data.

7. The method for manufacturing and correcting errors in installation of special-shaped components based on three-dimensional laser according to claim 1, characterized in that: Importing the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components into the three-dimensional digital processing software for superposition analysis, obtaining a third superposition analysis result, and obtaining a third deviation value F1 based on the third superposition analysis result, and comparing the third deviation value F1 with the third preset deviation value F0 in the preset special-shaped component installation standard, judging the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components based on the comparison result, and performing error correction on the manufacturing parameters of the next batch of special-shaped components based on the judgment result, to obtain a third error correction report, wherein: When F1≤F0, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is determined to be in compliance with the standard, and the error correction report is not output; When F1>F0, the spatial adaptation between the actual installation model of the special-shaped component and the preset design model of the next batch of special-shaped components is determined to be substandard, and the manufacturing parameters of the next batch of special-shaped components are corrected according to the third superposition analysis results to obtain the third special-shaped component error correction parameters, and the third special-shaped component error correction parameters and the third superposition analysis results are output as a third error correction report.

8. A 3D laser-based error correction system for manufacturing and installing special-shaped components, characterized by: include: The civil engineering foundation actual model construction module is used to perform 3D laser scanning on the actual civil engineering foundation after quality inspection to obtain civil engineering foundation data, pre-process the civil engineering foundation data to obtain actual civil engineering foundation data, and convert the actual civil engineering foundation data into a polygonal mesh model to obtain the actual civil engineering foundation model; a first superposition analysis module, configured to perform superposition analysis on the actual civil foundation model, the preset civil foundation design model, and the preset design model of the current batch of special-shaped components, obtain a first superposition analysis result, and perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the first superposition analysis result; a module for constructing an actual model for manufacturing special-shaped components, configured to classify the special-shaped components according to the first superposition analysis results to obtain a type of special-shaped component, perform three-dimensional laser scanning on each manufactured special-shaped component of the special-shaped component type to obtain special-shaped component data, pre-process the special-shaped component data to obtain actual special-shaped component data, and convert the actual special-shaped component data into a polygonal mesh model to obtain an actual model for manufacturing the special-shaped component; The second superposition analysis module is used to perform superposition analysis on the actual manufacturing model of the special-shaped components and the actual model of the civil engineering foundation to obtain a second superposition analysis result, and to perform error correction on the manufacturing parameters of the current batch of special-shaped components based on the second superposition analysis result; a module for constructing an actual model of the installation of a special-shaped component, configured to perform a three-dimensional laser scan of the installation site after the installation of the special-shaped component is completed based on the second superposition analysis result to obtain special-shaped component installation data, pre-process the special-shaped component installation data to obtain special-shaped component installation data, and convert the special-shaped component installation data into a polygonal mesh model to obtain an actual model of the installation of the special-shaped component; The third superposition analysis module is used to perform superposition analysis on the actual installation model of the special-shaped components and the preset design model of the next batch of special-shaped components to obtain the third superposition analysis results, and correct the errors of the manufacturing parameters of the next batch of special-shaped components based on the third superposition analysis results.

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