A communication tower structural defect detection method and system

Abstract

The invention discloses a method and system for detecting structural defects of a communication iron tower, and relates to the technical field of structural defect detection. The system discloses a structural defect detection starting module, a vibration simulation analysis module, a structural defect expression module, and a structural defect detection execution module. The structural defect detection starting module is set to periodically perform in-depth analysis on the vibration of the communication iron tower. Through the vibration analysis of the communication iron tower, it is accurately and efficiently determined whether the communication iron tower has structural defects. The vibration simulation analysis module and the structural defect expression module are set. When it is determined that the communication iron tower has structural defects, simulation analysis is performed according to the vibration characteristics of the communication iron tower, and different structural defect conditions of the communication iron tower under the vibration characteristics are simulated, so as to perform a comprehensive and integrated defect expression analysis on each defect detection structure.

Description

Technical Field

[0001] The present invention relates to the technical field of structural defect detection, and more specifically, to a communication tower structural defect detection method and system. Background Art

[0002] As an indispensable infrastructure in modern communication networks, communication towers bear the heavy responsibility of signal transmission. However, during long-term use, communication towers are often affected by various natural and human factors, such as wind, corrosion, and impact, which lead to various structural defects such as cracks, deformation, and corrosion. These structural defects will not only reduce the carrying capacity and stability of communication towers, but may also cause safety accidents, posing a serious threat to people's lives and property.

[0003] Traditional methods for detecting structural defects in communication towers mainly rely on drone inspections, which require regular photography of all structures on the towers and analysis of the photos using image defect detection technology. This method is inefficient.

[0004] In recent years, with the rapid development of sensor technology and data analysis technology, vibration-based structural health monitoring technology has gradually been applied to the detection of structural defects in communication towers. This technology installs sensors on the tower to monitor the vibration of the tower in real time and evaluates the structural health of the tower through data analysis. However, the existing vibration-based structural health monitoring technology still has some problems. For example, vibration can only determine whether there are structural defects in the communication tower, but it is difficult to determine the location of the structural defects.

[0005] Therefore, the present invention proposes a communication tower structural defect detection method and system, aiming to solve the problems existing in the prior art. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention aims to provide a method and system for detecting structural defects of a communication tower.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A communication tower structural defect detection system, comprising a structural defect detection startup module, a vibration simulation analysis module, a structural defect representation module, and a structural defect detection execution module;

[0009] The structural defect detection start module is used to periodically collect vibration data of the communication tower, obtain a vibration characteristic index after collecting a period of vibration data, and determine whether it is necessary to start the structural defect detection work of the communication tower based on the comparison result of the vibration characteristic index and the vibration characteristic standard index;

[0010] When the vibration simulation analysis module starts the structural defect detection work of the communication tower, it determines all defect detection structures of the communication tower, obtains the initial structural characteristics of each defect detection structure, synchronously obtains the basic structural data of the communication tower, builds a communication tower simulation model based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower, inputs the vibration characteristics into the communication tower simulation model, and the communication tower simulation model performs j vibration simulation analyses, and obtains the structural defect value of each defect detection structure in the vibration simulation analysis after each vibration simulation analysis is completed;

[0011] The structural defect representation module obtains the comprehensive defect representation value of each defect detection structure when completing j vibration simulation analyses;

[0012] The structural defect detection execution module determines whether to mark the defect detection structure as a potential defect structure based on the comparison result of the comprehensive defect manifestation value of the defect detection structure and the comprehensive defect manifestation threshold, and detects the potential defect structure in sequence.

[0013] Furthermore, the vibration characteristic index is obtained as follows: preprocessing and feature extraction are performed on vibration data to obtain vibration characteristics, a vibration characteristic analysis model is obtained, the vibration characteristics are input into the vibration characteristic analysis model, and the vibration characteristic analysis model outputs the vibration characteristic index.

[0014] Furthermore, a communication tower simulation model is constructed based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower. The construction process is as follows: ANSYS software is selected, and a communication tower model is created in the ANSYS software based on the basic structural data of the communication tower. The basic structural data includes overall size, material properties, and connection methods. According to the initial structural characteristics of each defect detection structure, corresponding parameters are set for the corresponding defect detection structure on the communication tower model. The parameters include structural thickness, structural strength, and material properties. Boundary conditions are set. For the structural part subjected to external excitation, corresponding loads and constraints need to be set to construct a communication tower simulation model.

[0015] Furthermore, each time a vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained. The specific steps are as follows: collect the simulated structural characteristics of each defect detection structure in the communication tower simulation model after the vibration simulation analysis is completed, obtain the initial structural characteristics of each defect detection structure, obtain a structural defect characteristic comparison model, combine the simulated structural characteristics of a defect detection structure with the initial structural characteristics into a structural characteristic comparison group, input the structural characteristic comparison group into the structural defect characteristic comparison model, and the structural defect characteristic comparison model outputs the structural defect value of the defect detection structure, thereby obtaining the structural defect value of each defect detection structure.

[0016] Furthermore, the comprehensive defect performance value of the defect detection structure is obtained as follows: obtain all structural defect values ​​of a defect detection structure in j vibration simulation analyses, match all structural defect values ​​in pairs into a defect control group, obtain the defect control value of each defect control group, sum and average the defect control values ​​of all defect control groups to obtain the defect control mean Mdx, set a high defect structure value and a low defect structure value, when the structural defect value is greater than or equal to the high defect structure value, increase the number of abnormal defects by one, and mark the number of abnormal defects as ZHsd, when the structural defect value is less than or equal to the low defect structure value, increase the number of non-defects by one, and mark the number of non-defects as Fmwz, when the structural defect value is between the high defect structure value and the low defect structure value, mark the structural defect value as a neutral defect value, sum and average all neutral defect values ​​to obtain the average neutral defect value Bsw, and use the formula The comprehensive defect performance value Farw of the defect detection structure is obtained, where v1 is the first defect coefficient, v2 is the second defect coefficient, the value of v1 is 1.49, and the value of v2 is 1.42.

[0017] Furthermore, the defect control value of the defect control group is obtained as follows: the difference between the two structural defect values ​​in the defect control group is calculated and the absolute value is taken to obtain the defect instability value Ery, the two structural defect values ​​in the defect control group are summed to obtain the defect combination value Psd, and the formula is used The defect control value Vzg of the defect control group is obtained, wherein cm is the defect instability coefficient and cn is the defect combination coefficient.

[0018] Furthermore, based on the comparison result between the comprehensive defect manifestation value of the defect detection structure and the comprehensive defect manifestation threshold, it is determined whether to mark the defect detection structure as a potential defect structure, specifically: setting the comprehensive defect manifestation threshold, when the comprehensive defect manifestation value of the defect detection structure is greater than the comprehensive defect manifestation threshold, the defect detection structure is marked as a potential defect structure.

[0019] Furthermore, the hidden dangers and defective structures are inspected in sequence, specifically: all the hidden dangers and defective structures are sorted in order from large to small according to the values ​​of the comprehensive defect performance values, and drones are arranged to take pictures of the hidden dangers and defective structures on the communication tower in the sorted order, and defect detection is performed on the hidden dangers and defective structures based on the pictures taken.

[0020] Furthermore, a method for detecting structural defects of a communication tower comprises the following steps:

[0021] Step 1: periodically collect vibration data of the communication tower, obtain the vibration characteristic index after collecting one cycle of vibration data, and determine whether it is necessary to start the structural defect detection work of the communication tower based on the comparison result between the vibration characteristic index and the vibration characteristic standard index;

[0022] Step 2: When the structural defect detection work of the communication tower is started, all defect detection structures of the communication tower are determined, the initial structural characteristics of each defect detection structure are obtained, the basic structural data of the communication tower is simultaneously obtained, and the communication tower simulation model is constructed based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower;

[0023] Step 3: Input the vibration characteristics into the communication tower simulation model, and the communication tower simulation model performs j vibration simulation analyses. After each vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained;

[0024] Step 4: When j vibration simulation analyses are completed, the comprehensive defect performance value of each defect detection structure is obtained;

[0025] Step 5: Based on the comparison result of the comprehensive defect performance value of the defect detection structure and the comprehensive defect performance threshold, determine whether to mark the defect detection structure as a potential defect structure;

[0026] Step 6: Inspect the structures with hidden dangers and defects in sequence.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The method of the present invention performs a comprehensive and integrated defect performance analysis on each defect detection structure, selects the structure that needs to be actually defect detected, and customizes the defect detection sequence of different structures on the communication tower according to the hidden dangers of the structure;

[0029] 2. Set up a structural defect detection startup module, and conduct in-depth analysis of the vibration of the communication tower periodically. Through the vibration analysis of the communication tower, accurately and efficiently determine whether the communication tower has structural defects. Set up a vibration simulation analysis module and a structural defect performance module. When it is determined that the communication tower has structural defects, perform simulation analysis based on the vibration characteristics of the communication tower to simulate different structural defects of the communication tower under the vibration characteristics. Set up a structural defect detection execution module to ensure that structures with high potential defects are detected first, and ensure the detection efficiency and accuracy of the structural defects of the communication tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A method flow chart of a method for detecting structural defects of a communication tower;

[0031] Figure 2 It is a system module diagram of a communication tower structure defect detection system;

[0032] Figure 3 A detection flow chart for sequential detection of hidden dangers and defective structures. DETAILED DESCRIPTION

[0033] Example 1: Reference Figure 1 , a method for detecting structural defects of a communication tower, comprising the following steps:

[0034] Step 1: periodically collect vibration data of the communication tower, obtain the vibration characteristic index after collecting one cycle of vibration data, and determine whether it is necessary to start the structural defect detection work of the communication tower based on the comparison result between the vibration characteristic index and the vibration characteristic standard index;

[0035] Step 2: When the structural defect detection work of the communication tower is started, all defect detection structures of the communication tower are determined, the initial structural characteristics of each defect detection structure are obtained, the basic structural data of the communication tower is simultaneously obtained, and the communication tower simulation model is constructed based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower;

[0036] Step 3: Input the vibration characteristics into the communication tower simulation model, and the communication tower simulation model performs j vibration simulation analyses. After each vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained;

[0037] Step 4: When j vibration simulation analyses are completed, the comprehensive defect performance value of each defect detection structure is obtained;

[0038] Step 5: Based on the comparison result of the comprehensive defect performance value of the defect detection structure and the comprehensive defect performance threshold, determine whether to mark the defect detection structure as a potential defect structure;

[0039] Step 6: Inspect the structures with hidden dangers and defects in sequence.

[0040] Through the above method, a comprehensive and integrated defect performance analysis is conducted on each defect detection structure, the structures that need actual defect detection are screened out, and the defect detection sequence of different structures on the communication tower is customized according to the hidden dangers of the structure.

[0041] Example 2: Reference Figure 2-Figure 3 A communication tower structural defect detection system includes a structural defect detection startup module, a vibration simulation analysis module, a structural defect performance module, and a structural defect detection execution module.

[0042] Structural defect detection startup module: periodically collects vibration data of communication towers, and after collecting vibration data of each cycle (vibration data is collected through corresponding accelerometers, strain gauges and other equipment), preprocesses and extracts features of the vibration data (preprocessing includes data cleaning, denoising, normalization and other steps, feature extraction includes statistical feature extraction, frequency domain feature extraction and other steps), obtains vibration features, obtains vibration characteristic analysis model, inputs vibration features into vibration characteristic analysis model, and obtains vibration characteristic index from the output of vibration characteristic analysis model, sets vibration characteristic standard index (vibration characteristic standard index is a preset index of the detection system), and when the vibration characteristic index is greater than the vibration characteristic standard index, starts the structural defect detection of the communication tower (when the vibration characteristic index is less than or equal to the vibration characteristic standard index, no further processing is performed).

[0043] The construction process of the vibration characteristic analysis model is as follows: collect multiple vibration characteristics, build a neural network model, use the vibration characteristics as training data for the neural network model, assign a vibration characteristic index to each training data, the value range of the vibration characteristic index is (1.0~10.0), the larger the value of the vibration characteristic index, the greater the possibility that the communication tower has structural defects, the smaller the value of the vibration characteristic index, the smaller the possibility that the communication tower has structural defects, and divide the training data into training set, verification set and validation set according to the set ratio of 4:1:1, train the training set, verification set and validation set, and complete the construction of the vibration characteristic analysis model.

[0044] A structural defect detection startup module is set up to periodically conduct in-depth analysis of the vibration of the communication tower. Through the vibration analysis of the communication tower, it is accurately and efficiently determined whether the communication tower has structural defects.

[0045] Vibration simulation analysis module: When the structural defect detection work of the communication tower is started, all defect detection structures of the communication tower are determined (the defect detection structure is the structure that may have defects and thus cause abnormal vibration characteristics of the communication tower), and the initial structural characteristics of each defect detection structure are obtained (the initial characteristic data is the structural characteristics of the defect detection structure in the initial use of the communication tower, that is, the structural characteristics of the defect detection structure under normal and defect-free conditions), and the basic structure data of the communication tower is obtained simultaneously. Based on the initial structural characteristics of each defect detection structure and the basic structure data of the communication tower, a communication tower simulation model is constructed, and the vibration characteristics are input into the communication tower simulation model. The communication tower simulation model performs j vibration simulation analyses (the vibration characteristics are input into the communication tower simulation model). In the communication tower simulation model, the communication tower simulation model will add defect parameters to the defect detection structure according to the vibration characteristics. The defect parameters include crack length, corrosion area, etc. After the defect parameters are adjusted, the communication tower simulation model runs a simulation analysis. After running the simulation analysis, when the simulated vibration characteristics of the communication tower simulation model are consistent with the vibration characteristics, a vibration simulation analysis is completed. The defect detection structure for adding defect parameters in each vibration simulation analysis is not completely consistent, and the defect parameters are not completely consistent, to ensure that the structural defect conditions encountered in each vibration simulation analysis are inconsistent, but the generated simulated vibration characteristics are consistent). Each time a vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained.

[0046] A communication tower simulation model is constructed based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower. The construction process is as follows: select ANSYS software, and create a communication tower model in ANSYS software based on the basic structural data of the communication tower. The basic structural data includes overall size, material properties, connection method, etc. According to the initial structural characteristics of each defect detection structure, corresponding parameters are set for the corresponding defect detection structure on the communication tower model, including parameters such as structural thickness, structural strength, and material properties. Boundary conditions are set. For the structural part subject to external excitation, corresponding loads and constraints need to be set to construct a communication tower simulation model.

[0047] Each time a vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained. The specific steps are as follows: collect the simulated structural characteristics of each defect detection structure in the communication tower simulation model after the vibration simulation analysis is completed (that is, the structural characteristics of each defect detection structure when the simulated vibration characteristics of the communication tower simulation model are consistent with the vibration characteristics, the structural characteristics of some defect detection structures are the same as the initial structural characteristics because no defect parameters are added, and the structural characteristics of some defect detection structures are different from the initial structural characteristics because defect parameters are added), obtain the initial structural characteristics of each defect detection structure, obtain a structural defect characteristic comparison model, combine the simulated structural characteristics of a defect detection structure with the initial structural characteristics into a structural characteristic comparison group, input the structural characteristic comparison group into the structural defect characteristic comparison model, and the structural defect characteristic comparison model outputs the structural defect value of the defect detection structure, thereby obtaining the structural defect value of each defect detection structure.

[0048] The construction process of the structural defect feature comparison model is as follows: collect multiple groups of structural feature comparison groups, each of which contains a simulated structural feature and an initial structural feature, and the simulated structural feature and the initial structural feature are both from a defect detection structure, build a neural network model, use the structural feature comparison group as training data for the neural network model, assign a structural defect value to each training data, and the structural defect value range is (5.0~8.0). The larger the structural defect value, the larger the structural defect of the defect detection structure, and the smaller the structural defect value, the smaller the structural defect of the defect detection structure. The training data is divided into training set, verification set and validation set according to the set ratio of 3:1:1, and the training set, verification set and validation set are trained. After the training is completed, the construction of the structural defect feature comparison model is completed.

[0049] Structural defect representation module: When j vibration simulation analyses are completed, the comprehensive defect representation value of each defect detection structure is obtained.

[0050] The comprehensive defect performance value of the defect detection structure is obtained as follows: obtain all structural defect values ​​of a defect detection structure in j vibration simulation analyses, match all structural defect values ​​in pairs into a defect control group, obtain the defect control value of each defect control group, sum and average the defect control values ​​of all defect control groups to obtain the defect control mean Mdx, set a high defect structure value and a low defect structure value (the high defect structure value is greater than the low defect structure value, and the high defect structure value and the low defect structure value are both preset thresholds of the detection system), when the structural defect value is greater than or equal to the high defect structure value, increase the number of abnormal defects once, and mark the number of abnormal defects as ZHsd, when the structural defect value is less than or equal to the low defect structure value, increase the number of non-defects once, and mark the number of non-defects as Fmwz, when the structural defect value is between the high defect structure value and the low defect structure value, mark the structural defect value as a neutral defect value, sum and average all neutral defect values ​​to obtain the average neutral defect value Bsw, and use the formula The comprehensive defect performance value Farw of the defect detection structure is obtained, where v1 is the first defect coefficient, v2 is the second defect coefficient, the value of v1 is 1.49, and the value of v2 is 1.42.

[0051] The defect control value of the defect control group is obtained as follows: the difference between the two structural defect values ​​in the defect control group is calculated and the absolute value is taken to obtain the defect instability value Ery; the two structural defect values ​​in the defect control group are summed to obtain the defect combination value Psd, and the formula is used The defect control value Vzg of the defect control group is obtained, where cm is the defect instability coefficient, cn is the defect combination coefficient, the value of cm is 2.16, and the value of cn is 1.05.

[0052] A vibration simulation analysis module and a structural defect manifestation module are set up. When it is determined that a communication tower has structural defects, a simulation analysis is performed based on the vibration characteristics of the communication tower. The different structural defects of the communication tower under the vibration characteristics are simulated, and then a comprehensive and integrated defect manifestation analysis is performed on each defect detection structure.

[0053] Structural defect detection execution module: set a comprehensive defect manifestation threshold (the comprehensive defect manifestation threshold is a preset threshold of the detection system). When the comprehensive defect manifestation value of the defect detection structure is greater than the comprehensive defect manifestation threshold, mark the defect detection structure as a potential defect structure (when the comprehensive defect manifestation value of the defect detection structure is less than or equal to the comprehensive defect manifestation threshold, no further processing is performed). All potential defect structures are sorted in descending order according to the values ​​of the comprehensive defect manifestation values. Arrange drones to take photos of the potential defect structures on the communication tower in the sorted order, and perform defect detection on the potential defect structures based on the photos taken (using image defect detection technology, which is a prior art and will not be elaborated in detail).

[0054] A structural defect detection execution module is set up to screen out structures that need actual defect detection, and the defect detection sequence of different structures on the communication tower is customized according to the hidden dangers of the structure, to ensure that structures with high defect risks are detected first, and to ensure the detection efficiency and accuracy of the communication tower structure defects.

[0055] The above formulas are all dimensionless and numerical calculations are performed, and the preset parameters in the formulas are set by technicians in this field according to actual conditions.

[0056] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0057] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0058] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0059] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0060] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0061] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0062] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication tower structural defect detection system, characterized in that: It includes a structural defect detection startup module, a vibration simulation analysis module, a structural defect representation module, and a structural defect detection execution module; The structural defect detection start module is used to periodically collect vibration data of the communication tower, obtain a vibration characteristic index after collecting a period of vibration data, and determine whether it is necessary to start the structural defect detection work of the communication tower based on the comparison result of the vibration characteristic index and the vibration characteristic standard index; When the vibration simulation analysis module starts the structural defect detection work of the communication tower, it determines all defect detection structures of the communication tower, obtains the initial structural characteristics of each defect detection structure, synchronously obtains the basic structural data of the communication tower, builds a communication tower simulation model based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower, inputs the vibration characteristics into the communication tower simulation model, and the communication tower simulation model performs j vibration simulation analyses, and obtains the structural defect value of each defect detection structure in the vibration simulation analysis after each vibration simulation analysis is completed; The structural defect representation module obtains the comprehensive defect representation value of each defect detection structure when completing j vibration simulation analyses; The structural defect detection execution module determines whether to mark the defect detection structure as a potential defect structure based on the comparison result of the comprehensive defect manifestation value of the defect detection structure and the comprehensive defect manifestation threshold, and detects the potential defect structure in sequence.

2. A communication tower structural defect detection system according to claim 1, characterized in that: The vibration characteristic index is obtained as follows: preprocessing and feature extraction are performed on vibration data to obtain vibration characteristics, a vibration characteristic analysis model is obtained, the vibration characteristics are input into the vibration characteristic analysis model, and the vibration characteristic analysis model outputs the vibration characteristic index.

3. A communication tower structural defect detection system according to claim 1, characterized in that: A communication tower simulation model is constructed based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower. The construction process is as follows: select ANSYS software, and create a communication tower model in ANSYS software based on the basic structural data of the communication tower. The basic structural data includes overall size, material properties, and connection methods. According to the initial structural characteristics of each defect detection structure, corresponding parameters are set for the corresponding defect detection structure on the communication tower model. The parameters include structural thickness, structural strength, and material properties. Boundary conditions are set. For the structural part subject to external excitation, corresponding loads and constraints need to be set to construct a communication tower simulation model.

4. A communication tower structural defect detection system according to claim 1, characterized in that: Each time a vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained. The specific steps are as follows: collect the simulated structural features of each defect detection structure in the communication tower simulation model after the vibration simulation analysis is completed, obtain the initial structural features of each defect detection structure, obtain a structural defect feature comparison model, combine the simulated structural features of a defect detection structure with the initial structural features into a structural feature comparison group, input the structural feature comparison group into the structural defect feature comparison model, and the structural defect feature comparison model outputs the structural defect value of the defect detection structure, thereby obtaining the structural defect value of each defect detection structure.

5. A communication tower structural defect detection system according to claim 1, characterized in that: The comprehensive defect performance value of the defect detection structure is obtained as follows: obtain all structural defect values ​​of a defect detection structure in j vibration simulation analyses, match all structural defect values ​​in pairs into a defect control group, obtain the defect control value of each defect control group, sum and average the defect control values ​​of all defect control groups to obtain the defect control mean Mdx, set a high defect structure value and a low defect structure value, when the structural defect value is greater than or equal to the high defect structure value, increase the number of abnormal defects by one, and mark the number of abnormal defects as ZHsd, when the structural defect value is less than or equal to the low defect structure value, increase the number of non-defects by one, and mark the number of non-defects as Fmwz, when the structural defect value is between the high defect structure value and the low defect structure value, mark the structural defect value as a neutral defect value, sum and average all neutral defect values ​​to obtain the average neutral defect value Bsw, and use the formula The comprehensive defect performance value Farw of the defect detection structure is obtained, wherein v1 is the first defect coefficient and v2 is the second defect coefficient.

6. A communication tower structural defect detection system according to claim 5, characterized in that: The defect control value of the defect control group is obtained as follows: the difference between the two structural defect values ​​in the defect control group is calculated and the absolute value is taken to obtain the defect instability value Ery; the two structural defect values ​​in the defect control group are summed to obtain the defect combination value Psd, and the formula is used The defect control value Vzg of the defect control group is obtained, wherein cm is the defect instability coefficient and cn is the defect combination coefficient.

7. A communication tower structural defect detection system according to claim 1, characterized in that: Based on the comparison result of the comprehensive defect manifestation value of the defect detection structure and the comprehensive defect manifestation threshold, it is determined whether to mark the defect detection structure as a potential defect structure, specifically: setting the comprehensive defect manifestation threshold, when the comprehensive defect manifestation value of the defect detection structure is greater than the comprehensive defect manifestation threshold, the defect detection structure is marked as a potential defect structure.

8. A communication tower structural defect detection system according to claim 1, characterized in that: The hidden dangers and defective structures are inspected in sequence, specifically: all the hidden dangers and defective structures are sorted in descending order according to the values ​​of the comprehensive defect performance values, and drones are arranged to take photos of the hidden dangers and defective structures on the communication towers in the sorted order, and defect detection is performed on the hidden dangers and defective structures based on the photos taken.

9. A communication tower structural defect detection method, applied to a communication tower structural defect detection system according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: periodically collect vibration data of the communication tower, obtain the vibration characteristic index after collecting one cycle of vibration data, and determine whether it is necessary to start the structural defect detection work of the communication tower based on the comparison result between the vibration characteristic index and the vibration characteristic standard index; Step 2: When the structural defect detection work of the communication tower is started, all defect detection structures of the communication tower are determined, the initial structural characteristics of each defect detection structure are obtained, the basic structural data of the communication tower is simultaneously obtained, and the communication tower simulation model is constructed based on the initial structural characteristics of each defect detection structure and the basic structural data of the communication tower; Step 3: Input the vibration characteristics into the communication tower simulation model, and the communication tower simulation model performs j vibration simulation analyses. After each vibration simulation analysis is completed, the structural defect value of each defect detection structure in the vibration simulation analysis is obtained; Step 4: When j vibration simulation analyses are completed, the comprehensive defect performance value of each defect detection structure is obtained; Step 5: Based on the comparison result of the comprehensive defect performance value of the defect detection structure and the comprehensive defect performance threshold, determine whether to mark the defect detection structure as a potential defect structure; Step 6: Inspect the structures with hidden dangers and defects in sequence.

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