Method and device for evaluating performance of prefabricated building structure based on model correction

Abstract

The application relates to a kind of model correction-based prefabricated building structure performance evaluation method and device. The method comprises: obtaining the structural layout features and finite element model of the prefabricated building structure, and generating a full-scale experiment scheme of the prefabricated building structure based on the structural layout features;Collect and process the modal parameter identification of the vibration signal of the prefabricated building structure to obtain the modal parameter information of the prefabricated building structure;Based on the modal parameter information and the finite element model, identify the mapping relationship between the modal parameter information and the structural service performance parameters of the prefabricated building structure, and based on the mapping relationship, adjust the response surface model of the prefabricated building structure to obtain the structural parameters of the prefabricated building structure, and perform performance evaluation processing on the prefabricated building structure to obtain the structural performance information of the prefabricated building structure. The method can improve the accuracy of the evaluated prefabricated building structure performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural service performance, in particular to a fabricated building structure performance evaluation method and device based on model correction. BACKGROUND

[0002] Structural service performance refers to the performance of the structure during service, which usually includes the following aspects: strength, durability, stability, safety, comfort, etc. Structural service performance is an important factor that needs to be considered during the design of the structure, and the service performance of the building structure is also an index that needs to be considered in structural health detection. The damage condition of the structure also affects the service performance of the building structure. Therefore, how to improve the evaluation accuracy of the structural service performance is the main research direction of evaluating the performance of the fabricated building structure.

[0003] The traditional evaluation method of the performance of the fabricated building structure is to obtain the material parameters and geometric parameters of the structure through experiments or calculations, and then manually analyze the structural service performance based on the material parameters and geometric parameters. However, this method has high time and cost for obtaining the material parameters and geometric parameters, and is affected by environmental factors, resulting in low accuracy of evaluating the performance of the fabricated building structure. SUMMARY

[0004] Therefore, it is necessary to provide a fabricated building structure performance evaluation method and device based on model correction, computer equipment, computer readable storage medium and computer program product in order to solve the above technical problems.

[0005] In a first aspect, the present application provides a fabricated building structure performance evaluation method based on model correction, comprising:

[0006] Obtaining the structural layout features of the fabricated building structure and the finite element model of the fabricated building structure, and generating a full-scale experiment scheme of the fabricated building structure based on the structural layout features;

[0007] Collecting the vibration signal of the fabricated building structure obtained based on the full-scale experiment scheme, and performing modal parameter identification processing on the vibration signal to obtain the modal parameter information of the fabricated building structure;

[0008] Based on the modal parameter information and the finite element model, identifying the mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure, and adjusting the finite element model based on the mapping relationship to obtain the response surface model of the fabricated building structure;

[0009] Perform structural performance inversion processing on the response surface model to obtain structural parameters of the fabricated building structure, and perform performance evaluation processing on the fabricated building structure based on the structural parameters and the full-scale experiment scheme to obtain structural performance information of the fabricated building structure.

[0010] Optionally, the generating the full-scale experiment scheme of the fabricated building structure based on the structural layout features comprises:

[0011] Based on the structural layout features, the excitation points of the fabricated building structure are screened in the fabricated building structure, and test results obtained by performing structural response tests at each excitation point are received;

[0012] Based on the test results corresponding to each excitation point, dynamic sensing data corresponding to each excitation point are identified, and based on the dynamic sensing data corresponding to each excitation point, dynamic sensing data distribution processing is performed in the three-dimensional structural model corresponding to the fabricated building structure to obtain dynamic sensing distribution information of the fabricated building structure;

[0013] Based on the dynamic sensing distribution information, each arrangement point is screened, and based on the dynamic sensing data of each arrangement point in the dynamic sensing distribution information, a target dynamic sensor corresponding to each arrangement point and a target excitation mode corresponding to each arrangement point are screened in an experiment database;

[0014] Based on each arrangement point, the target dynamic sensor corresponding to each arrangement point, and the target excitation mode corresponding to each arrangement point, the full-scale experiment scheme of the fabricated building structure is generated.

[0015] Optionally, the modal parameter identification processing of the vibration signal to obtain the modal parameter information of the fabricated building structure comprises:

[0016] The vibration signal is split into sub-vibration signals corresponding to each arrangement point, and three-dimensional position information of each arrangement point in the fabricated building structure is identified;

[0017] Based on the sub-vibration signals corresponding to each arrangement point and the three-dimensional position information corresponding to each arrangement point, sub-modal parameter information of each arrangement point is identified through a modal parameter identification algorithm, and the sub-modal parameter information of all arrangement points is taken as the modal parameter information of the fabricated building structure.

[0018] Optionally, the identifying a mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure based on the modal parameter information and the finite element model comprises:

[0019] Based on the sub-modal parameter information of each arrangement point and the finite element model, the structural modal parameter information of the fabricated building structure is calculated through a dynamics algorithm, and based on the modeling data of the finite element model, the structural service performance parameters of the fabricated building structure are identified.

[0020] Based on the structural modal parameter information and the structural service performance parameters, a sensitivity analysis is performed through the finite element model to identify the change response information between each structural modal parameter information and each structural service performance parameter.

[0021] Based on the change response information, a mapping relationship between each structural modal parameter information and each structural service performance parameter is constructed.

[0022] Optionally, based on the mapping relationship, the finite element model is adjusted to obtain a response surface model of the fabricated building structure, comprising:

[0023] Based on the mapping relationship between each structural modal parameter information and each structural service performance parameter, a conversion function between each structural modal parameter information and each structural service performance parameter is generated.

[0024] Each structural modal parameter information corresponds to a conversion function, and the finite element model is constructed to construct a response surface model of the fabricated building structure.

[0025] Optionally, the response surface model is subjected to structural performance inversion processing to obtain the structural parameters of the fabricated building structure, comprising:

[0026] Each measured structural modal parameter information of the fabricated building structure is obtained, and based on each measured structural modal parameter information, each measured structural service performance parameter corresponding to each measured structural modal parameter information is identified through the conversion function corresponding to each structural modal parameter information.

[0027] All measured structural service performance parameters are used as the structural parameters of the fabricated building structure.

[0028] Optionally, based on the structural parameters and the full-scale experiment scheme, the performance of the fabricated building structure is evaluated to obtain the structural performance information of the fabricated building structure, comprising:

[0029] Based on the structural modal parameter information corresponding to the full-scale experiment scheme, the structural service performance parameters corresponding to each structural modal parameter information are identified through the conversion function corresponding to each structural modal parameter information.

[0030] Based on each measured structural service performance parameter of the accessory building structure and each structural service performance parameter of the fabricated building structure, parameter evaluation information of each structural service performance parameter is identified through a parameter evaluation strategy;

[0031] The parameter evaluation information of all structural service performance parameters is taken as structural performance information of the fabricated building structure.

[0032] In a second aspect, the application further provides a fabricated building structure performance evaluation device based on model correction, comprising:

[0033] An acquisition module is configured to acquire structural layout features of a fabricated building structure and a finite element model of the fabricated building structure, and generate a full-scale experiment scheme of the fabricated building structure based on the structural layout features;

[0034] An identification module is configured to collect vibration signals of the fabricated building structure based on the full-scale experiment scheme, and perform modal parameter identification processing on the vibration signals to obtain modal parameter information of the fabricated building structure;

[0035] An adjustment module is configured to identify a mapping relationship between the modal parameter information and structural service performance parameters of the fabricated building structure based on the modal parameter information and the finite element model, and adjust the finite element model based on the mapping relationship to obtain a response surface model of the fabricated building structure;

[0036] An evaluation module is configured to perform structural performance inversion processing on the response surface model to obtain structural parameters of the fabricated building structure, and perform performance evaluation processing on the fabricated building structure based on the structural parameters and the full-scale experiment scheme to obtain structural performance information of the fabricated building structure.

[0037] Optionally, the acquisition module is specifically configured to:

[0038] Based on the structural layout features, excitation points of the fabricated building structure are screened in the fabricated building structure, and test results obtained by performing structural response tests at each excitation point are received;

[0039] Based on the test results corresponding to each excitation point, dynamic sensing data corresponding to each excitation point is identified, and based on the dynamic sensing data corresponding to each excitation point, dynamic sensing data distribution processing is performed in a three-dimensional structural model corresponding to the fabricated building structure to obtain dynamic sensing distribution information of the fabricated building structure;

[0040] screen each layout point based on the power sensing distribution information, and screen a target power sensor corresponding to each layout point and a target excitation mode corresponding to each layout point in an experimental database based on power sensing data of each layout point in the power sensing distribution information;

[0041] generate a full-scale experimental scheme of the fabricated building structure based on each layout point, the target power sensor corresponding to each layout point, and the target excitation mode corresponding to each layout point.

[0042] Optionally, the identification module is specifically configured to:

[0043] split the vibration signal into sub-vibration signals corresponding to each layout point, and identify three-dimensional position information of each layout point in the fabricated building structure;

[0044] identify sub-modal parameter information of each layout point by a modal parameter identification algorithm based on the sub-vibration signals corresponding to each layout point and the three-dimensional position information corresponding to each layout point, and take the sub-modal parameter information of all layout points as modal parameter information of the fabricated building structure.

[0045] Optionally, the adjustment module is specifically configured to:

[0046] calculate structural modal parameter information of the fabricated building structure by a dynamics algorithm based on the sub-modal parameter information of each layout point and the finite element model, and identify a structural service performance parameter of the fabricated building structure based on modeling data of the finite element model;

[0047] perform sensitivity analysis processing on the finite element model based on the structural modal parameter information and the structural service performance parameter, and identify change response information between each structural modal parameter information and each structural service performance parameter;

[0048] construct a mapping relationship between each structural modal parameter information and each structural service performance parameter based on the change response information.

[0049] Optionally, the adjustment module is specifically configured to:

[0050] generate a conversion function between each structural modal parameter information and each structural service performance parameter based on the mapping relationship between each structural modal parameter information and each structural service performance parameter;

[0051] construct a response surface model of the fabricated building structure by using the conversion function corresponding to each structural modal parameter information and the finite element model.

[0052] Optionally, the evaluation module is specifically configured to:

[0053] Obtain each measured structural modal parameter information of the fabricated building structure, and identify a measured structural service performance parameter corresponding to each measured structural modal parameter information through a conversion function corresponding to each structural modal parameter information based on each measured structural modal parameter information.

[0054] Take all measured structural service performance parameters as the structural parameters of the fabricated building structure.

[0055] Optionally, the evaluation module is specifically configured to:

[0056] Identify a structural service performance parameter corresponding to each structural modal parameter information through a conversion function corresponding to each structural modal parameter information based on each structural modal parameter information corresponding to the full-scale experiment scheme;

[0057] Identify parameter evaluation information of each structural service performance parameter through a parameter evaluation strategy based on each measured structural service performance parameter of the fabricated building structure and each structural service performance parameter of the fabricated building structure.

[0058] Take the parameter evaluation information of all structural service performance parameters as the structural performance information of the fabricated building structure.

[0059] In a third aspect, the present application provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method in any one of the first aspect when executing the computer program.

[0060] In a fourth aspect, the present application provides a computer readable storage medium. The computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the method in any one of the first aspect.

[0061] In a fifth aspect, the present application provides a computer program product. The computer program product includes a computer program, and the computer program is executed by a processor to implement the steps of the method in any one of the first aspect.

[0062] The model correction-based fabricated building structure performance evaluation method and device, by acquiring the structural layout features of the fabricated building structure and the finite element model of the fabricated building structure, generating a full-scale experiment scheme of the fabricated building structure based on the structural layout features, collecting vibration signals of the fabricated building structure obtained based on the full-scale experiment scheme, and performing modal parameter identification processing on the vibration signals to obtain modal parameter information of the fabricated building structure, identifying a mapping relationship between the modal parameter information and structural service performance parameters of the fabricated building structure based on the modal parameter information and the finite element model, adjusting the finite element model based on the mapping relationship to obtain a response surface model of the fabricated building structure, performing structural performance inversion processing on the response surface model to obtain structural parameters of the fabricated building structure, and performing performance evaluation processing on the fabricated building structure based on the structural parameters and the full-scale experiment scheme to obtain structural performance information of the fabricated building structure. The scheme generates a full-scale experiment scheme of the fabricated building structure based on the structural layout features of the fabricated building structure. Then, vibration signals of the fabricated building structure are acquired to analyze modal parameter information of the fabricated building structure. Thus, the accuracy of the acquired modal parameter information is ensured, and the problems of low timeliness and high cost of acquiring material parameters and geometric parameters of the structure are avoided. Further, the scheme identifies a mapping relationship between modal parameter information and structural service performance parameters of the fabricated building structure, identifies corresponding structural service performance parameters of different modal parameter information, and identifies structural performance information of the fabricated building structure through structural performance inversion, avoiding the problems of low efficiency and low accuracy of manual analysis, and efficiently acquiring parameters and performing inversion performance evaluation, thereby comprehensively improving the accuracy of evaluated performance of the fabricated building structure. BRIEF DESCRIPTION OF DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0064] Figure 1 A flowchart of a model correction-based fabricated building structure performance evaluation method in an embodiment;

[0065] Figure 2 A flowchart of a model correction-based fabricated building structure performance evaluation example in an embodiment;

[0066] Figure 3A structural block diagram of an embodiment of a model correction-based fabricated building structure performance evaluation device;

[0067] Figure 4 An internal structural diagram of an embodiment of a computer device. DETAILED DESCRIPTION

[0068] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0069] The model correction-based fabricated building structure performance evaluation method provided by the embodiments of the present application can be applied to the application environment of fabricated building structure performance evaluation. The method can be applied to a terminal, a server, or a system including a terminal and a server, and is implemented through the interaction of the terminal and the server. The terminal can be, but is not limited to, various personal computers, notebook computers, and the like. The terminal generates a full-scale experiment scheme of the fabricated building structure by using the structural layout features of the fabricated building structure, obtains vibration signals of the fabricated building structure according to the full-scale experiment scheme, and analyzes modal parameter information of the fabricated building structure. Thus, the accuracy of the obtained modal parameter information is ensured, and the problems of low timeliness and high cost in obtaining material parameters and geometric parameters of the structure are avoided. In addition, the mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure is constructed, different modal parameter information corresponding to the structural service performance parameters is identified, the structural performance information of the fabricated building structure is identified through structural performance inversion, the problems of low efficiency and low accuracy in manual analysis are avoided, efficient parameter acquisition and inversion performance evaluation operations are realized, and the accuracy of the evaluated fabricated building structure performance is improved.

[0070] In an exemplary embodiment, as shown in Figure 1 A model correction-based fabricated building structure performance evaluation method is provided. The method is applied to a terminal as an example and includes the following steps S101 to S104. Wherein:

[0071] In step S101, the structural layout features of the fabricated building structure and the finite element model of the fabricated building structure are obtained, and a full-scale experiment scheme of the fabricated building structure is generated based on the structural layout features.

[0072] In this embodiment, the terminal obtains the structural layout features of the fabricated building structure in response to the information uploading operation of the staff. The structural layout features include, but are not limited to, the layout mode and position features of the floor and shear wall. Then, the terminal obtains the finite element model of the fabricated building structure that has been constructed. Alternatively, the finite element model of the fabricated building structure is constructed by obtaining the three-dimensional structural data of the fabricated building structure and using the finite element model construction software. Subsequently, the terminal generates a full-scale experiment scheme of the fabricated building structure based on the structural layout features. The full-scale experiment scheme is an experimental method for identifying the structural vibration response data of the fabricated building structure by performing dynamic sensing tests at the structural response sensitive points of the fabricated building structure. The generation process of the full-scale experiment scheme will be described in detail later. The structural response sensitive points are the position points at which the vibration response of the fabricated building structure is sensitive when the fabricated building structure is excited.

[0073] In step S102, the vibration signal of the fabricated building structure obtained based on the full-scale experiment scheme is collected, and modal parameter identification processing is performed on the vibration signal to obtain the modal parameter information of the fabricated building structure.

[0074] In this embodiment, the terminal collects the vibration signal of the fabricated building structure obtained based on the full-scale experiment scheme, and performs modal parameter identification processing on the vibration signal to obtain the modal parameter information of the fabricated building structure. The vibration signal is the signal obtained by performing denoising, filtering, and truncation on the vibration response data obtained by experiments on the structural response sensitive points. The modal parameter information includes, but is not limited to, the modal parameters such as the frequency and mode shape of the fabricated building structure. The specific identification process will be described in detail later.

[0075] In step S103, the mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure is identified based on the modal parameter information and the finite element model, and the finite element model is adjusted based on the mapping relationship to obtain the response surface model of the fabricated building structure.

[0076] In this embodiment, the terminal identifies a mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure based on the modal parameter information and the finite element model, and adjusts the finite element model based on the mapping relationship to obtain a response surface model of the fabricated building structure. The mapping relationship is used to convert the modal parameter information of the fabricated building structure into the structural service performance parameters of the fabricated building structure. The structural service performance parameters include but are not limited to the stiffness, mass, and material properties of the fabricated building structure. The specific identification process of the mapping relationship will be described in detail later. Then, the terminal adjusts the finite element model based on the mapping relationship to obtain a response surface model of the fabricated building structure. The response surface model is a reduced-order model of the finite element model. The specific adjustment process will be described in detail later.

[0077] In step S104, structural performance inversion processing is performed on the response surface model to obtain structural parameters of the fabricated building structure, and performance evaluation processing is performed on the fabricated building structure based on the structural parameters and the full-scale experiment scheme to obtain structural performance information of the fabricated building structure.

[0078] In this embodiment, the terminal performs structural performance inversion processing on the response surface model to obtain structural parameters of the fabricated building structure, and performs performance evaluation processing on the fabricated building structure based on the structural parameters and the full-scale experiment scheme to obtain structural performance information of the fabricated building structure. The structural performance inversion processing is a structural inversion process based on the actual measured modal parameter information collected by the response surface model to obtain each measured structural service performance parameter. The performance inversion processing process and the performance evaluation processing process will be described in detail later.

[0079] Based on the above scheme, the full-scale experiment scheme of the fabricated building structure is generated based on the structural layout characteristics of the fabricated building structure. Then the vibration signal of the fabricated building structure is obtained to analyze the modal parameter information of the fabricated building structure. Thus, while ensuring the accuracy of the obtained modal parameter information, the problem of low timeliness and high cost of obtaining the material parameters and geometric parameters of the structure is avoided. Secondly, the mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure is constructed to identify the corresponding structural service performance parameters of different modal parameter information, and the structural performance information of the fabricated building structure is identified by structural performance inversion, avoiding the problems of low efficiency and low precision of manual analysis, thereby efficiently obtaining parameters and performing inversion performance evaluation operations, and comprehensively improving the accuracy of evaluating the performance of the fabricated building structure.

[0080] Optionally, based on the structural layout features, a full-scale experiment scheme of the fabricated building structure is generated, including: based on the structural layout features, screening excitation points of the fabricated building structure in the fabricated building structure, and receiving test results obtained by performing structural response tests at each excitation point; based on the test results corresponding to each excitation point, identifying dynamic sensing data corresponding to each excitation point, and based on the dynamic sensing data corresponding to each excitation point, performing dynamic sensing data distribution processing in the three-dimensional structure model corresponding to the fabricated building structure, to obtain dynamic sensing distribution information of the fabricated building structure; based on the dynamic sensing distribution information, screening each arrangement point, and based on the dynamic sensing data of each arrangement point in the dynamic sensing distribution information, screening target dynamic sensors corresponding to each arrangement point and target excitation modes corresponding to each arrangement point in the experiment database; based on each arrangement point, the target dynamic sensors corresponding to each arrangement point, and the target excitation modes corresponding to each arrangement point, a full-scale experiment scheme of the fabricated building structure is generated.

[0081] In this embodiment, the terminal screens excitation points of the fabricated building structure in the fabricated building structure based on the structural layout features, and receives test results obtained by performing structural response tests at each excitation point. The excitation points are test points preset by the staff in the fabricated building structure, and then the terminal collects the structural excitation tests of the staff on each test point to obtain the test results of each excitation point.

[0082] The terminal identifies dynamic sensing data corresponding to each excitation point based on the test results corresponding to each excitation point, and performs dynamic sensing data distribution processing in the three-dimensional structure model corresponding to the fabricated building structure based on the dynamic sensing data corresponding to each excitation point, to obtain dynamic sensing distribution information of the fabricated building structure. The dynamic sensing data distribution processing is a spatial data distribution processing by a spatial interpolation method. The dynamic sensing distribution information is the dynamic sensing response sensitivity of different position points in all regions of the fabricated building structure. The higher the dynamic sensing response sensitivity of the position point, the more sensitive the position point is to the vibration response, and the more suitable it is as an arrangement point for vibration response test. The lower the dynamic sensing response sensitivity of the position point, the less sensitive the position point is to the vibration response, and the less suitable it is as an arrangement point for vibration response test.

[0083] The terminal screens each arrangement point based on the power sensing distribution information, and screens a target power sensor corresponding to each arrangement point and a target excitation mode corresponding to each arrangement point in the experimental database based on power sensing data of each arrangement point in the power sensing distribution information. The screening of each arrangement point is performed by screening a position range surrounded by position points each having a power sensing response sensitivity greater than a power sensing response sensitivity threshold in the power sensing distribution information, and then identifying a target number of position points corresponding to a range size of each position range according to the range size and a preset number of position points of each range size of the terminal. Then, the terminal screens a position point with a maximum power sensing response sensitivity in each position range as each arrangement point according to a preset interval distance.

[0084] A full-scale experimental scheme of the fabricated building structure is generated based on each arrangement point, the target power sensor corresponding to each arrangement point, and the target excitation mode corresponding to each arrangement point. The experimental database stores power sensors corresponding to different power sensing response sensitivity ranges and excitation modes. Then, the terminal determines the target power sensor corresponding to each arrangement point and the target excitation mode corresponding to each arrangement point by identifying a sensing response sensitivity range to which a power sensing response sensitivity of each arrangement point belongs.

[0085] Based on the above scheme, the arrangement points are screened through the test process of each excitation point, thereby avoiding screening of data of all position points, ensuring the accuracy of data acquisition, and greatly reducing the cost of data acquisition.

[0086] Optionally, the vibration signal is subjected to modal parameter identification processing to obtain modal parameter information of the fabricated building structure, including: splitting the vibration signal into sub-vibration signals corresponding to each arrangement point, and identifying three-dimensional position information of each arrangement point in the fabricated building structure; identifying sub-modal parameter information of each arrangement point based on the sub-vibration signals corresponding to each arrangement point and the three-dimensional position information corresponding to each arrangement point through a modal parameter identification algorithm, and taking the sub-modal parameter information of all arrangement points as the modal parameter information of the fabricated building structure.

[0087] In this embodiment, the terminal splits the vibration signal into sub-vibration signals corresponding to each arrangement point, and identifies three-dimensional position information of each arrangement point in the fabricated building structure. Then, the terminal identifies sub-modal parameter information of each arrangement point based on the sub-vibration signals corresponding to each arrangement point and the three-dimensional position information corresponding to each arrangement point through a modal parameter identification algorithm, and takes the sub-modal parameter information of all arrangement points as the modal parameter information of the fabricated building structure. The modal identification algorithm can be, but is not limited to, a random subspace method or a stability diagram.

[0088] Based on the above scheme, the modal parameter information of the fabricated building structure is obtained by identifying the sub-modal parameter information of each arrangement point through the modal recognition algorithm, thereby improving the comprehensiveness and accuracy of the obtained modal parameter information of the fabricated building structure.

[0089] Optionally, based on the modal parameter information and the finite element model, a mapping relationship between the modal parameter information and the structural service performance parameters of the fabricated building structure is identified, including: based on the sub-modal parameter information of each arrangement point and the finite element model, the structural modal parameter information of the fabricated building structure is calculated through a dynamics algorithm, and based on the modeling data of the finite element model, the structural service performance parameters of the fabricated building structure are identified; based on the structural modal parameter information and the structural service performance parameters, a sensitivity analysis is performed through the finite element model to identify the change response information between each structural modal parameter information and each structural service performance parameter; and based on the change response information, a mapping relationship between each structural modal parameter information and each structural service performance parameter is constructed.

[0090] In this embodiment, the terminal calculates the structural modal parameter information of the fabricated building structure based on the sub-modal parameter information of each arrangement point and the finite element model through a dynamics algorithm, and identifies the structural service performance parameters of the fabricated building structure based on the modeling data of the finite element model. The dynamics algorithm includes but is not limited to a vibration frequency algorithm and a mode shape algorithm. The modeling data in the finite element model includes parameters of stiffness, mass, and material properties.

[0091] The terminal performs sensitivity analysis through the finite element model based on the structural modal parameter information and the structural service performance parameters to identify the change response information between each structural modal parameter information and each structural service performance parameter. The sensitivity analysis is performed by adjusting each structural modal parameter information through a single variable method to re-identify the modal parameter information of the fabricated building structure. Then, the terminal determines the change response information between each structural modal parameter information and each structural service performance parameter based on the change amount of each modal parameter information when each structural service performance parameter changes. Finally, the terminal constructs a mapping relationship between each structural modal parameter information and each structural service performance parameter based on the change response information.

[0092] Based on the above scheme, the mapping relationship between each structural modal parameter information and each structural service performance parameter is identified by adjusting each structural service performance parameter through a single variable method, thereby improving the identification accuracy and efficiency of the mapping relationship.

[0093] Optionally, based on the mapping relationship, the finite element model is adjusted to obtain a response surface model of the fabricated building structure, including: based on the mapping relationship between each structure modal parameter information and each structure service performance parameter, a conversion function between each structure modal parameter information and each structure service performance parameter is generated; and each structure modal parameter information corresponding conversion function and the finite element model are used to construct the response surface model of the fabricated building structure.

[0094] In this embodiment, the terminal generates a conversion function between each structure modal parameter information and each structure service performance parameter based on the mapping relationship between each structure modal parameter information and each structure service performance parameter. The conversion function is a conversion function for converting structure modal parameter information into structure service performance parameters or converting structure service performance parameters into structure modal parameter information.

[0095] Finally, the terminal constructs a response surface model of the fabricated building structure by using each structure modal parameter information corresponding conversion function and the finite element model. The response surface model is an approximate function relationship model between the to-be-corrected parameters and the correction target established by a test design method. In the optimization process, the approximate function is used to replace the complex finite element model calculation, thereby improving the calculation efficiency and realizing the optimization of the objective function.

[0096] Based on the above scheme, the conversion function between each structure modal parameter information and each structure service performance parameter is identified through the mapping relationship between each structure modal parameter information and each structure service performance parameter, thereby improving the identification accuracy and comprehensiveness of the structure service performance parameters.

[0097] Optionally, the response surface model is subjected to structure performance inversion processing to obtain the structure parameters of the fabricated building structure, including: obtaining each measured structure modal parameter information of the fabricated building structure, and based on each measured structure modal parameter information, each measured structure service performance parameter corresponding to each measured structure modal parameter information is identified through the conversion function corresponding to each structure modal parameter information; and all measured structure service performance parameters are used as the structure parameters of the fabricated building structure.

[0098] In this embodiment, the terminal obtains each measured structure modal parameter information of the fabricated building structure, and based on each measured structure modal parameter information, each measured structure service performance parameter corresponding to each measured structure modal parameter information is identified through the conversion function corresponding to each structure modal parameter information. Finally, the terminal uses all measured structure service performance parameters as the structure parameters of the fabricated building structure.

[0099] Based on the above scheme, the measured structure modal parameter information is obtained, and the measured structure service performance parameters of the fabricated building structure are directly identified through the conversion function corresponding to each structure modal parameter information, thereby improving the identification efficiency and accuracy of the measured structure service performance parameters.

[0100] Optionally, based on the structure parameters and the full-scale experiment scheme, the performance of the fabricated building structure is evaluated to obtain the structure performance information of the fabricated building structure, including: identifying the structure service performance parameters corresponding to each structure modal parameter information based on the conversion function corresponding to each structure modal parameter information based on the full-scale experiment scheme; identifying the parameter evaluation information of each structure service performance parameter based on the parameter evaluation strategy based on the measured structure service performance parameters of the fabricated building structure and the structure service performance parameters of the fabricated building structure; and taking the parameter evaluation information of all structure service performance parameters as the structure performance information of the fabricated building structure.

[0101] In this embodiment, the terminal identifies the structure service performance parameters corresponding to each structure modal parameter information based on the conversion function corresponding to each structure modal parameter information based on the full-scale experiment scheme. Then, the terminal identifies the parameter evaluation information of each structure service performance parameter based on the parameter evaluation strategy based on the measured structure service performance parameters of the fabricated building structure and the structure service performance parameters of the fabricated building structure. The parameter evaluation strategy includes a sub-evaluation strategy for each structure service performance parameter, each sub-evaluation strategy includes an evaluation value corresponding to each parameter deviation value range, and the terminal identifies the parameter evaluation value of each structure service performance parameter by calculating the deviation value range to which the deviation value between the measured structure service performance parameter and the structure service performance parameter belongs, and takes the parameter evaluation value of each structure service performance parameter as the parameter evaluation information of each structure service performance parameter. Finally, the terminal takes the parameter evaluation information of all structure service performance parameters as the structure performance information of the fabricated building structure.

[0102] Based on the above scheme, the structure performance evaluation of the fabricated building structure is realized by the method of inversely deriving the service performance of the structure itself based on the change of the structure dynamic information. The identification accuracy of the structure performance information is improved, and the efficiency of identifying the structure performance information is also improved.

[0103] The present application also provides a model correction-based fabricated building structure performance evaluation example, as shown in Figure 2 The specific processing process includes the following steps:

[0104] Step S201, obtaining the structure layout characteristics of the fabricated building structure and the finite element model of the fabricated building structure.

[0105] In step S202, based on the structural layout features, the excitation points of the prefabricated building structure are screened, and the test results obtained by performing structural response tests at each excitation point are received.

[0106] In step S203, based on the test results corresponding to each excitation point, the dynamic sensing data corresponding to each excitation point is identified, and based on the dynamic sensing data corresponding to each excitation point, the dynamic sensing data distribution processing is performed in the three-dimensional structure model corresponding to the prefabricated building structure, to obtain the dynamic sensing distribution information of the prefabricated building structure.

[0107] In step S204, based on the dynamic sensing distribution information, each arrangement point is screened, and based on the dynamic sensing data of each arrangement point in the dynamic sensing distribution information, the target dynamic sensor corresponding to each arrangement point and the target excitation mode corresponding to each arrangement point are screened in the experimental database.

[0108] In step S205, based on each arrangement point, the target dynamic sensor corresponding to each arrangement point, and the target excitation mode corresponding to each arrangement point, a full-scale experiment scheme of the prefabricated building structure is generated.

[0109] In step S206, the vibration signal of the prefabricated building structure obtained based on the full-scale experiment scheme is collected.

[0110] In step S207, the vibration signal is split into sub-vibration signals corresponding to each arrangement point, and the three-dimensional position information of each arrangement point in the prefabricated building structure is identified.

[0111] In step S208, based on the sub-vibration signals corresponding to each arrangement point and the three-dimensional position information corresponding to each arrangement point, the sub-modal parameter information of each arrangement point is identified through a modal parameter identification algorithm, and the sub-modal parameter information of all arrangement points is taken as the modal parameter information of the prefabricated building structure.

[0112] In step S209, based on the sub-modal parameter information of each arrangement point and the finite element model, the structural modal parameter information of the prefabricated building structure is calculated through a dynamics algorithm, and based on the modeling data of the finite element model, the structural service performance parameters of the prefabricated building structure are identified.

[0113] In step S210, based on the structural modal parameter information and the structural service performance parameters, the sensitivity analysis processing is performed through the finite element model, to identify the change response information between each structural modal parameter information and each structural service performance parameter.

[0114] In step S211, based on the change response information, the mapping relationship between each structural modal parameter information and each structural service performance parameter is constructed.

[0115] In step S212, a conversion function between each structural modal parameter information and each structural service performance parameter is generated based on a mapping relationship between each structural modal parameter information and each structural service performance parameter.

[0116] In step S213, a response surface model of the fabricated building structure is constructed based on the conversion function corresponding to each structural modal parameter information and the finite element model.

[0117] In step S214, each measured structural modal parameter information of the fabricated building structure is obtained, and each measured structural service performance parameter corresponding to each measured structural modal parameter information is identified based on the measured structural modal parameter information and the conversion function corresponding to each structural modal parameter information.

[0118] In step S215, all the measured structural service performance parameters are taken as the structural parameters of the fabricated building structure.

[0119] In step S216, each structural service performance parameter corresponding to each structural modal parameter information is identified based on the conversion function corresponding to each structural modal parameter information.

[0120] In step S217, parameter evaluation information of each structural service performance parameter is identified based on the parameter evaluation strategy and the measured structural service performance parameters of the fabricated building structure and the structural service performance parameters of the fabricated building structure.

[0121] In step S218, the parameter evaluation information of all the structural service performance parameters is taken as the structural performance information of the fabricated building structure.

[0122] It should be understood that although each step in the flowchart involved in each embodiment as described above is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each embodiment as described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0123] Based on the same inventive concept, the embodiments of the present application also provide a model correction based prefabricated building structure performance evaluation device for implementing the model correction based prefabricated building structure performance evaluation method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more model correction based prefabricated building structure performance evaluation device embodiments provided below can refer to the limitations of the model correction based prefabricated building structure performance evaluation method described above, which will not be repeated here.

[0124] In one exemplary embodiment, as shown in Figure 3 A model correction based prefabricated building structure performance evaluation device is provided, comprising: an acquisition module 310, an identification module 320, an adjustment module 330 and an evaluation module 340, wherein:

[0125] The acquisition module 310 is configured to acquire structural layout features of a prefabricated building structure and a finite element model of the prefabricated building structure, and generate a full-scale experiment scheme of the prefabricated building structure based on the structural layout features;

[0126] The identification module 320 is configured to collect vibration signals of the prefabricated building structure obtained based on the full-scale experiment scheme, and perform modal parameter identification processing on the vibration signals to obtain modal parameter information of the prefabricated building structure;

[0127] The adjustment module 330 is configured to identify a mapping relationship between the modal parameter information and structural service performance parameters of the prefabricated building structure based on the modal parameter information and the finite element model, and adjust the finite element model based on the mapping relationship to obtain a response surface model of the prefabricated building structure;

[0128] The evaluation module 340 is configured to perform structural performance inversion processing on the response surface model to obtain structural parameters of the prefabricated building structure, and perform performance evaluation processing on the prefabricated building structure based on the structural parameters and the full-scale experiment scheme to obtain structural performance information of the prefabricated building structure.

[0129] Optionally, the acquisition module 310 is specifically configured to:

[0130] Based on the structural layout features, the excitation points of the prefabricated building structure are screened in the prefabricated building structure, and test results obtained by performing structural response tests at each excitation point are received;

[0131] Based on the test results corresponding to each of the excitation points, identify the dynamic sensing data corresponding to each of the excitation points, and based on the dynamic sensing data corresponding to each of the excitation points, perform dynamic sensing data distribution processing in the three-dimensional structure model corresponding to the prefabricated building structure, to obtain dynamic sensing distribution information of the prefabricated building structure.

[0132] Based on the dynamic sensing distribution information, screen each of the arrangement points, and based on the dynamic sensing data of each arrangement point in the dynamic sensing distribution information, screen the target dynamic sensor corresponding to each arrangement point and the target excitation mode corresponding to each arrangement point in the experimental database.

[0133] Based on each arrangement point, the target dynamic sensor corresponding to each arrangement point, and the target excitation mode corresponding to each arrangement point, generate a full-scale experiment scheme of the prefabricated building structure.

[0134] Optionally, the identification module 320 is specifically configured to:

[0135] Split the vibration signal into sub-vibration signals corresponding to each of the arrangement points, and identify three-dimensional position information of each arrangement point in the prefabricated building structure.

[0136] Based on the sub-vibration signals corresponding to each of the arrangement points and the three-dimensional position information corresponding to each of the arrangement points, identify the sub-modal parameter information of each of the arrangement points through a modal parameter identification algorithm, and use the sub-modal parameter information of all arrangement points as the modal parameter information of the prefabricated building structure.

[0137] Optionally, the adjustment module 330 is specifically configured to:

[0138] Based on the sub-modal parameter information of each arrangement point and the finite element model, calculate the structural modal parameter information of the prefabricated building structure through a dynamics algorithm, and identify the structural service performance parameters of the prefabricated building structure based on the modeling data of the finite element model.

[0139] Based on the structural modal parameter information and the structural service performance parameters, perform sensitivity analysis processing through the finite element model to identify the change response information between each structural modal parameter information and each structural service performance parameter.

[0140] Based on the change response information, construct a mapping relationship between each structural modal parameter information and each structural service performance parameter.

[0141] Optionally, the adjustment module 330 is specifically configured to:

[0142] generate a conversion function between each structural modal parameter information and each structural service performance parameter based on a mapping relationship between each structural modal parameter information and each structural service performance parameter;

[0143] construct a response surface model of the fabricated building structure based on the conversion function corresponding to each structural modal parameter information and the finite element model.

[0144] Optionally, the evaluation module 340 is specifically configured to:

[0145] obtain each measured structural modal parameter information of the fabricated building structure, and identify a measured structural service performance parameter corresponding to each measured structural modal parameter information based on each measured structural modal parameter information and the conversion function corresponding to each structural modal parameter information;

[0146] use all measured structural service performance parameters as structural parameters of the fabricated building structure.

[0147] Optionally, the evaluation module 340 is specifically configured to:

[0148] identify a structural service performance parameter corresponding to each structural modal parameter information based on each structural modal parameter information corresponding to the full-scale experiment scheme and the conversion function corresponding to each structural modal parameter information;

[0149] identify parameter evaluation information of each structural service performance parameter based on each measured structural service performance parameter of the fabricated building structure and each structural service performance parameter of the fabricated building structure and a parameter evaluation strategy;

[0150] use parameter evaluation information of all structural service performance parameters as structural performance information of the fabricated building structure.

[0151] Each module in the above model correction-based fabricated building structure performance evaluation device can be realized by software, hardware, and a combination thereof, in whole or in part. Each module can be embedded in or independent of a processor in a computer device in hardware form, or can be stored in a memory in a computer device in software form, so as to be called and executed by a processor to perform operations corresponding to each module.

[0152] In one exemplary embodiment, a computer device is provided, which can be a terminal, and an internal structure diagram thereof can be as shown in Figure 4As shown in the figure. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through the system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capability. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with the external terminal in a wired or wireless manner. The wireless manner can be realized through WIFI, mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to realize a model correction-based prefabricated building structure performance evaluation method. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0153] Those skilled in the art can understand that, Figure 4 The skilled in the art can understand that,

[0154] In one exemplary embodiment, a computer device is provided, comprising a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize the steps of the method of any one of the first aspect.

[0155] In one embodiment, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by the processor to realize the steps of the method of any one of the first aspect.

[0156] In one embodiment, a computer program product is provided, comprising a computer program, and the computer program is executed by the processor to realize the steps of the method of any one of the first aspect.

[0157] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant regulations.

[0158] It can be understood by those skilled in the art that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing related hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, it can include the processes of the above-mentioned embodiments of each method. Any reference to memory, database or other medium used in the embodiments provided by the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided by the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided by the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0159] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0160] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A method for evaluating the structural performance of prefabricated buildings based on model correction, characterized in that, The method includes: Obtain the structural layout features of the prefabricated building structure and the finite element model of the prefabricated building structure, and generate a full-scale experimental scheme for the prefabricated building structure based on the structural layout features. Vibration signals of the prefabricated building structure obtained based on the full-scale experimental scheme are collected, and modal parameter identification processing is performed on the vibration signals to obtain the modal parameter information of the prefabricated building structure. Based on the modal parameter information and the finite element model, the mapping relationship between the modal parameter information and the structural service performance parameters of the prefabricated building structure is identified, and the finite element model is adjusted based on the mapping relationship to obtain the response surface model of the prefabricated building structure. The measured structural modal parameter information of the prefabricated building structure is obtained, and based on the measured structural modal parameter information, the measured structural service performance parameters corresponding to each measured structural modal parameter information are identified through the transformation function corresponding to each measured structural modal parameter information. All measured structural service performance parameters are used as the structural parameters of the prefabricated building structure. Based on the structural modal parameter information corresponding to the full-scale experimental scheme, the structural service performance parameters corresponding to each structural modal parameter information are identified through the transformation function corresponding to each structural modal parameter information. Based on the measured structural service performance parameters of the prefabricated building structure and the structural service performance parameters of the prefabricated building structure, the parameter evaluation information of each structural service performance parameter is identified through a parameter evaluation strategy. The parameter evaluation information of all structural service performance parameters is used as the structural performance information of the prefabricated building structure.

2. The method according to claim 1, characterized in that, The process of generating a full-scale experimental scheme for the prefabricated building structure based on the structural layout features includes: Based on the structural layout features, in the prefabricated building structure, the excitation points of the prefabricated building structure are selected, and the test results obtained by performing structural response tests at each excitation point are received. Based on the test results corresponding to each of the excitation points, the dynamic sensing data corresponding to each excitation point is identified, and based on the dynamic sensing data corresponding to each of the excitation points, dynamic sensing data distribution processing is performed in the three-dimensional structural model corresponding to the prefabricated building structure to obtain the dynamic sensing distribution information of the prefabricated building structure. Based on the power sensor distribution information, each deployment point is selected, and based on the power sensor data of each deployment point in the power sensor distribution information, the target power sensor corresponding to each deployment point and the target excitation method corresponding to each deployment point are selected in the experimental database. Based on each deployment point, the target dynamic sensor corresponding to each deployment point, and the target excitation method corresponding to each deployment point, a full-scale experimental scheme for the prefabricated building structure is generated.

3. The method according to claim 2, characterized in that, The modal parameter identification processing of the vibration signal to obtain the modal parameter information of the prefabricated building structure includes: The vibration signal is broken down into sub-vibration signals corresponding to each of the deployment points, and the three-dimensional position information of each deployment point in the prefabricated building structure is identified. Based on the sub-vibration signals corresponding to each of the deployment points and the three-dimensional position information corresponding to each of the deployment points, the sub-modal parameter information of each of the deployment points is identified by the modal parameter identification algorithm, and the sub-modal parameter information of all deployment points is used as the modal parameter information of the prefabricated building structure.

4. The method according to claim 3, characterized in that, The step of identifying the mapping relationship between the modal parameter information and the structural service performance parameters of the prefabricated building structure based on the modal parameter information and the finite element model includes: Based on the submodal parameter information of each deployment point and the finite element model, the structural modal parameter information of the prefabricated building structure is calculated through a dynamic algorithm, and the structural service performance parameters of the prefabricated building structure are identified based on the modeling data of the finite element model. Based on the structural modal parameter information and the structural service performance parameters, sensitivity analysis is performed using the finite element model to identify the response information of each structural modal parameter to changes in each structural service performance parameter. Based on the change response information, a mapping relationship is constructed between the modal parameter information of each structure and the service performance parameters of each structure.

5. The method according to claim 4, characterized in that, The process of adjusting the finite element model based on the mapping relationship to obtain the response surface model of the prefabricated building structure includes: Based on the mapping relationship between each structural modal parameter information and each structural service performance parameter, a transformation function between each structural modal parameter information and each structural service performance parameter is generated; The response surface model of the prefabricated building structure is constructed by using the transformation function corresponding to each structural modal parameter information and the finite element model.

6. A performance evaluation device for prefabricated building structures based on model correction, characterized in that, The device includes: The acquisition module is used to acquire the structural layout features of the prefabricated building structure and the finite element model of the prefabricated building structure, and generate a full-scale experimental scheme for the prefabricated building structure based on the structural layout features. The identification module is used to collect the vibration signal of the prefabricated building structure based on the full-scale experimental scheme, and to perform modal parameter identification processing on the vibration signal to obtain the modal parameter information of the prefabricated building structure. The adjustment module is used to identify the mapping relationship between the modal parameter information and the structural service performance parameters of the prefabricated building structure based on the modal parameter information and the finite element model, and to adjust the finite element model based on the mapping relationship to obtain the response surface model of the prefabricated building structure. The evaluation module is used to acquire measured structural modal parameter information of the prefabricated building structure, and based on the measured structural modal parameter information, identify the measured structural service performance parameters corresponding to each measured structural modal parameter information through the transformation function corresponding to each structural modal parameter information; use all measured structural service performance parameters as the structural parameters of the prefabricated building structure; based on the structural modal parameter information corresponding to the full-scale experimental scheme, identify the structural service performance parameters corresponding to each structural modal parameter information through the transformation function corresponding to each structural modal parameter information; based on the measured structural service performance parameters of the prefabricated building structure and the structural service performance parameters of the prefabricated building structure, identify the parameter evaluation information of each structural service performance parameter through a parameter evaluation strategy; use the parameter evaluation information of all structural service performance parameters as the structural performance information of the prefabricated building structure.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

9. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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