Frequency measurement method, device and computer-readable storage medium

Abstract

The present invention discloses a frequency measurement method, device, and computer-readable storage medium. The frequency measurement method includes the steps of: obtaining the high-order frequency of a to-be-measured high-rise building in a non-destructive state; setting a sub-structure on the to-be-measured high-rise building and adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency to obtain a target natural vibration frequency; obtaining the vibration acceleration of the sub-structure and obtaining a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration; and obtaining the target high-order frequency of the to-be-measured high-rise building according to the plurality of first vibration frequencies and the target natural vibration frequency. By setting a sub-structure on the high-rise building and amplifying the resonance frequency of the high-rise building, the present invention realizes accurate identification of the high-order frequency of the high-rise building.

Description

Technical Field

[0001] The present invention relates to the technical field of building frequency measurement, and in particular, to a frequency measurement method, device and computer-readable storage medium. Background Art

[0002] With the development of civil engineering technology, the health monitoring and safety status assessment of large-scale civil engineering structures, especially super high-rise buildings, have currently become a hot topic of concern in the academic and engineering circles at home and abroad. How to invert the working state and health status of the super high-rise building structure based on the collected data and signals is one of the most critical issues in super high-rise health monitoring. At present, the methods for structural frequency identification at home and abroad mainly include frequency-domain-based identification methods, time-domain-based identification methods, and time-frequency-domain-based identification methods. However, the above-mentioned methods can only accurately identify the structural vibration frequency under the condition of no interference or less interference. However, there are many interference factors inside super high-rise buildings, and it is difficult to directly achieve accurate measurement of the building itself in the real environment, especially the high-order frequencies of super high-rise buildings cannot be accurately measured under the action of many interference factors. Summary of the Invention

[0003] The main purpose of the present invention is to provide a frequency measurement method, device and computer-readable storage medium, aiming to solve the problem that the high-order frequencies of super high-rise buildings cannot be accurately measured under the action of many interference factors in the prior art.

[0004] To achieve the above purpose, the present invention provides a frequency measurement method, and the frequency measurement method includes the steps of:

[0005] Obtain the high-order frequency of the to-be-measured high-rise building in a non-damaged state;

[0006] Set a sub-structure on the to-be-measured high-rise building, and adjust the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtain the target natural vibration frequency;

[0007] Obtain the vibration acceleration of the sub-structure, and obtain a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration;

[0008] Obtain the target high-order frequency of the to-be-measured high-rise building according to the plurality of first vibration frequencies and the target natural vibration frequency.

[0009] Optionally, the step of obtaining the high-order frequency of the to-be-measured high-rise building in a non-damaged state includes:

[0010] Obtain the structural parameters of the to-be-measured high-rise building, and establish a finite element simulation corresponding to the to-be-measured high-rise building according to the structural parameters;

[0011] According to the finite element simulation, modal analysis is adopted to calculate the high-order frequencies of the high-rise building to be measured.

[0012] Optionally, the step of obtaining the target high-order frequency of the high-rise building to be measured according to the plurality of the first vibration frequencies and the target natural vibration frequency includes:

[0013] Search for and delete the frequencies identical to the target natural vibration frequency among the plurality of the first vibration frequencies to obtain a plurality of second vibration frequencies other than the target natural vibration frequency;

[0014] Search for the vibration frequency closest to the target natural vibration frequency among the plurality of the second vibration frequencies;

[0015] Take the vibration frequency closest to the target vibration frequency as the target high-order frequency of the high-rise building to be measured.

[0016] Optionally, the step of obtaining the vibration acceleration of the sub-structure and obtaining a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration includes:

[0017] Obtain the vibration acceleration of the sub-structure within a preset time period, and analyze the vibration acceleration by using a preset Fourier transform to obtain a plurality of first vibration frequencies corresponding to the sub-structure.

[0018] Optionally, the step of adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency includes:

[0019] Obtain the natural vibration frequency of the sub-structure, judge whether the natural vibration frequency is equal to the high-order frequency, and obtain a judgment result;

[0020] Adjust the sub-structure according to the judgment result until the natural vibration frequency is the same as the high-order frequency and obtain the target natural vibration frequency.

[0021] Optionally, the step of adjusting the sub-structure according to the judgment structure until the natural vibration frequency is equal to the high-order frequency includes:

[0022] If the judgment result is that the natural vibration frequency is not the same as the high-order frequency, adjust the stiffness of the sub-structure until the natural vibration frequency is equal to the high-order frequency.

[0023] Optionally, before the step of setting the sub-structure in the high-rise building to be measured and adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency, further includes:

[0024] Obtain the parameters of the sub-structure, and judge whether the sub-structure is in the normal service period according to the parameters.

[0025] In addition, to achieve the above object, the present invention further provides a frequency measurement device, which includes a sub-structure, as well as a memory, a processor, and a frequency measurement program stored on the memory and executable on the processor. When the frequency measurement program is executed by the processor, the steps of the above-mentioned frequency measurement method are implemented.

[0026] Optionally, the sub-structure includes a mass block and an elastic member connected to the mass block, and the elastic member is fixed on the high-rise building to be measured.

[0027] In addition, to achieve the above object, the present invention further provides a computer-readable storage medium, on which a frequency measurement program is stored. When the frequency measurement program is executed by a processor, the steps of the above-mentioned frequency measurement method are implemented.

[0028] The present invention provides a frequency measurement method, device, and computer-readable storage medium. The frequency measurement method includes the steps of: obtaining the high-order frequency of a high-rise building to be measured in a non-destructive state; setting a sub-structure with the high-rise building to be measured, and adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency; obtaining the vibration acceleration of the sub-structure, and obtaining a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration; and obtaining the target high-order frequency of the high-rise building to be measured according to the plurality of vibration frequencies and the target natural vibration frequency. Through the above method, the present invention can calculate the high-order frequency of the high-rise building to be measured in the actual situation based on the high-order frequency in the non-destructive state and the natural vibration frequency of the sub-structure installed on the high-rise building to be measured, avoiding the influence of more interference factors in the actual situation. The vibration of the high-order frequency of the super high-rise building is amplified through the resonance effect between the sub-structure and the high-rise building to be measured, so that the identification of the high-order frequency is not interfered by noise, improving the accuracy of the high-order frequency measurement of the high-rise building. At the same time, the measurement method is simple, reducing the measurement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the sub-structure in the frequency measurement device of the present invention;

[0030] Figure 2 It is a schematic flowchart of the first embodiment of the frequency measurement method of the present invention;

[0031] Figure 3 It is a schematic flowchart of the second embodiment of the frequency measurement method of the present invention;

[0032] Figure 4 It is a schematic structural diagram of the device of the hardware operating environment involved in the embodiment scheme of the present invention;

[0033] The realization, functional features and advantages of the present invention will be further described in conjunction with embodiments with reference to the accompanying drawings. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Based on the above hardware structure, various embodiments of the frequency measurement device of the present invention are proposed.

[0036] Please refer to Figure 1 , Figure 1 is a schematic structural diagram of a sub-structure in the frequency measurement device of the present invention. The sub-structure includes a mass block 01 and an elastic member 02 connected to the mass block. The elastic member is fixed on the high-rise building to be measured. Among them, the mass block 01 is an iron block or a stone block or an object of other materials with a specific mass, and the mass can be 1 g, 1 kg or 10 kg. Those skilled in the art can select mass blocks 01 with different masses according to needs to meet the implementation of the frequency measurement method, and the present invention does not limit this here. The elastic member 02 can specifically be a spring, and the spring has specific stiffness and damping, and both the stiffness and damping are physical properties of the spring. The stiffness of the spring can be changed by compressing the spring, stretching the spring or twisting the spring. The elastic member 02 and the mass block 01 can be connected by welding or adhesion, etc., and the elastic member 02 and the high-rise building to be measured can be fixed by bolts or welded to the top of the super high-rise building.

[0037] Specifically, the application scenario of the present invention is to measure the high-order frequency of a high-rise building. Since the high-order frequency is difficult to measure in the existing technology, in the present invention, the resonance effect between the sub-structure and the high-rise building can be realized through the sub-structure fixed on the top of the high-rise building, the vibration of the high-order frequency of the high-rise building is amplified, and then the measurement of the high-order frequency of the high-rise building is realized. By measuring the high-order frequency of the high-rise building, the resonance between the external sound and the high-rise building can be prevented, which affects the safety of the high-rise building. Therefore, through the sub-structure in the present invention, not only the measurement of the high-order frequency of the high-rise building can be realized, but also the structure is simple, and thus the cost of high-order frequency measurement can be reduced. The safety of high-rise buildings is improved.

[0038] Referring to Figure 2 , the present invention provides a frequency measurement method. In the first embodiment of the frequency measurement method of the frequency measurement device, the frequency measurement method includes the following steps:

[0039] Step S10, obtaining the high-order frequency of the high-rise building to be measured in a non-destructive state;

[0040] In this embodiment, high-rise buildings have corresponding low-order frequencies and high-order frequencies. Since low-order frequencies can be obtained relatively easily and accurately in the prior art, the main purpose of the present invention is to calculate the high-order frequencies of high-rise buildings.

[0041] In one embodiment, step S10 further includes:

[0042] Step A11, obtaining the structural parameters of the high-rise building to be measured, and establishing a finite element simulation corresponding to the high-rise building to be measured according to the structural parameters;

[0043] In this embodiment, the non-destructive state is the ideal state of the high-rise building, that is, the state where no indoor renovation, wall repair, etc. that damage the building occurs. The structural parameters of the high-rise building to be measured are building parameters such as the axial compression ratio, shear weight ratio, stiffness-weight ratio, storey height, building height, etc. of the building. A model of the high-rise building to be measured can be constructed according to the structural parameters of the high-rise building to be measured. The finite element simulation is to simulate the real high-rise building by using a mathematical approximation method. Then, the high-order frequency of the high-rise building is calculated according to the simulation results. Specifically, finite element simulation can be carried out through software such as ANSYS, SDRC / I-DEAS, etc. Those skilled in the art can also select different finite element simulation software for simulation according to needs, and the present invention does not limit this here.

[0044] Step A12, calculating the high-order frequency of the high-rise building to be measured by using modal analysis according to the finite element simulation.

[0045] In this embodiment, the modal analysis is a method for studying the dynamic characteristics of high-rise buildings, which is generally applied in the field of engineering vibration and is used to calculate the high-order frequency of the high-rise building to be measured in this embodiment. The accuracy of the high-order frequency of the high-rise building in the non-destructive state is improved.

[0046] After step A12, execute:

[0047] Step S20, setting the substructure on the high-rise building to be measured, and adjusting the natural vibration frequency of the substructure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency;

[0048] In this embodiment, the sub-structure includes a mass block and a spring connected to the mass block, and the spring is fixed to the top floor of the high-rise building to be measured by bolts or welding. By fixing the sub-structure on the top floor of the high-rise building, the vibration frequency of the high-rise building can be amplified, which is conducive to the measurement of the high-order frequency of the high-rise building. The natural vibration frequency of the sub-structure refers to the inherent vibration frequency of the sub-structure itself. Also known as the "inherent frequency". It is an inherent property of an elastic body or an elastic system. Specifically, it can be adjusted by adjusting the mass of the mass block in the sub-structure, the damping of the spring, and the stiffness of the spring. In this embodiment, since it is difficult to adjust the mass of the mass block and the damping of the spring, in order to facilitate adjustment, the stiffness of the spring can be changed to adjust the natural vibration frequency of the sub-structure. Specifically, the spring can be compressed, stretched, or twisted to change the stiffness of the spring until the natural vibration frequency of the spring is the same as the high-order frequency calculated in the non-damaged state, and the target natural vibration frequency same as the high-order frequency is obtained. By adjusting the natural vibration frequency of the sub-structure to be the same as the high-order frequency, the high-order frequencies of the high-rise building to be measured provided with the sub-structure and the high-rise building to be measured in the non-damaged state are unified, which is convenient for subsequent calculations.

[0049] In one embodiment, before step S20, the following step is further included:

[0050] A201, obtain the parameters of the sub-structure, and judge whether the sub-structure is in the normal service period according to the parameters.

[0051] In this embodiment, the normal service period is the normal use period of the sub-structure, which may include the situation where the mass of the mass block is not lost, and the spring is not deformed or broken. By judging whether the sub-structure is in the normal service period, the problem that the measurement result is inaccurate due to the quality problem of the sub-structure can be prevented, and the measurement accuracy can be improved.

[0052] Step S30, obtain the vibration acceleration of the sub-structure, and obtain a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration;

[0053] In one embodiment, step S30 further includes:

[0054] Step A31, obtain the vibration acceleration of the sub-structure within a preset time period, and analyze the vibration acceleration by using a preset Fourier transform to obtain a plurality of first vibration frequencies corresponding to the sub-structure;

[0055] In this embodiment, the preset time period can be set arbitrarily. It can be 1h or 0.5h, etc., and those skilled in the art can set it according to needs. Specifically, the vibration acceleration of the sub-structure can be obtained during the operation and maintenance of high-rise buildings, improving the accuracy of obtaining the vibration acceleration. The Fourier transform is a frequency-domain identification method, and the vibration frequency of the sub-structure can be obtained based on the vibration acceleration of the sub-structure within the preset time period. It should be noted that countless vibration frequencies can be obtained based on the vibration acceleration within a period of time. For example, within a time period, accelerations of ω1ω2ω3...ω i ...ω n .

[0056] After step A31, execute:

[0057] Step S40, obtain the target high-rise building of the high-rise building to be measured according to the several first vibration frequencies and the target natural vibration frequency.

[0058] Refer to Figure 3 , in one embodiment, the step S40 further includes:

[0059] Step S41, search for and delete the frequencies identical to the target natural vibration frequency among the several first vibration frequencies to obtain the second vibration frequencies except the target natural vibration frequency;

[0060] In this embodiment, since the first vibration frequencies calculated from the vibration acceleration must include the natural vibration frequency of the sub-structure, it is necessary to delete the vibration frequencies identical to the target natural vibration frequency among the first vibration frequencies to prevent the natural vibration frequency of the sub-structure from affecting the calculation of the target high-order frequency of the high-rise building and improve the accuracy of the calculation of the target high-order frequency of the high-rise building. In the above embodiment, the first vibration frequencies are ω1ω2ω3...ω i ...ω n , assuming the target natural vibration frequency is ω i , then the second vibration frequencies after deleting the vibration frequencies identical to the target vibration frequency among the first vibration frequencies are ω1ω2ω3...ω i-1 ω i+1 ...ω n .

[0061] Step S42, search for the vibration frequency closest to the target natural vibration frequency among the several second vibration frequencies;

[0062] Step S43, use the vibration frequency closest to the target vibration frequency as the target high-order frequency of the high-rise building to be measured.

[0063] In this embodiment, the target high-order frequency is the high-order frequency of a high-rise building in a real situation. By searching for and deleting the frequencies identical to the target natural vibration frequency among a plurality of the first vibration frequencies, and taking the vibration frequency closest to the target vibration frequency as the target high-order frequency of the to-be-measured high-rise building, the substructure resonance is utilized to amplify the vibration response of the super high-rise building, thereby more accurately identifying the high-order frequency of the super high-rise building.

[0064] The present invention provides a frequency measurement method. The frequency measurement method includes the steps of: obtaining the high-order frequency of a to-be-measured high-rise building in a non-destructive state; setting a substructure on the to-be-measured high-rise building, and adjusting the natural vibration frequency of the substructure until the natural vibration frequency is the same as the high-order frequency to obtain a target natural vibration frequency; obtaining the vibration acceleration of the substructure, and obtaining a plurality of first vibration frequencies corresponding to the substructure according to the vibration acceleration; and obtaining the target high-order frequency of the to-be-measured high-rise building according to the plurality of vibration frequencies and the target natural vibration frequency. Through the above method, the present invention can calculate the high-order frequency of the to-be-measured high-rise building in a real situation based on the high-order frequency in a non-destructive state and the natural vibration frequency of the substructure installed on the to-be-measured high-rise building, avoiding the influence of more interference factors in an actual situation. The vibration of the high-order frequency of the super high-rise building is amplified through the resonance effect between the substructure and the to-be-measured high-rise building, so that the identification of the high-order frequency is not interfered by noise, improving the accuracy of measuring the high-order frequency of the high-rise building. At the same time, the measurement method is simple, reducing the measurement cost.

[0065] Further, a second embodiment of the frequency measurement method of the present invention provides a frequency measurement method. Based on the above Figure 2 shown embodiment, the step of adjusting the natural vibration frequency of the substructure until the natural vibration frequency is the same as the high-order frequency to obtain a target natural vibration frequency includes:

[0066] Step A21, obtaining the natural vibration frequency of the substructure, judging whether the natural vibration frequency is equal to the high-order frequency, and obtaining a judgment result;

[0067] Step A22, adjusting the substructure according to the judgment result until the natural vibration frequency is the same as the high-order frequency to obtain a target natural vibration frequency.

[0068] In one embodiment, the step A22 further includes:

[0069] Step A221, if the judgment result is that the natural vibration frequency is not the same as the high-order frequency, adjusting the stiffness of the substructure until the natural vibration frequency is equal to the high-order frequency.

[0070] In this embodiment, the judgment result includes that the natural vibration frequency is the same as the high-order frequency and the natural vibration frequency is different from the high-order frequency. When the natural vibration frequency is equal to the high-order frequency, no processing is performed; when the natural vibration frequency is different from the high-order frequency, the stiffness of the sub-structure is adjusted, that is, the compression spring or the tension spring or the torsion spring is compressed or stretched to achieve the consistency of the natural vibration frequency and the high-order frequency, so as to facilitate the unification of the vibration frequency of the sub-structure and the high-rise building, so that the sub-structure can amplify the high-order frequency of the high-rise building, facilitate the measurement of the high-order frequency, and improve the measurement accuracy.

[0071] As Figure 4 shown, Figure 4 FIG. is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention.

[0072] The terminal in the embodiment of the present invention is a frequency measurement device.

[0073] As Figure 1 shown, the terminal may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a DVI interface 1004, a USB interface 1005, and a memory 1006. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The DVI interface 1004 may optionally include a standard wired interface and is connected to other external devices through a DVI cable. The USB interface 1005 may optionally include a standard wired interface and is connected to other external devices through a USB cable. The memory 1006 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1006 may also be a storage device independent of the foregoing processor 1001.

[0074] Optionally, the terminal may further include an audio circuit and the like, which will not be elaborated here.

[0075] Those skilled in the art can understand that Figure 1 the terminal structure shown in

[0076] As Figure 4 shown, the memory 1006, as a computer storage medium, may include an operating system, a DVI interface module, a USB interface module, a user interface module, and a frequency measurement program.

[0077] In Figure 4In the terminal shown, the DVI interface 1004 is mainly used to connect to external devices and communicate data with external devices; the USB interface 1005 is mainly used to connect to external devices and communicate data with external devices; the user interface 1003 is mainly used to connect to a client and communicate data with the client; and the processor 1001 can be used to call the frequency measurement program stored in the memory 1005 and perform the following operations:

[0078] Obtain the high-order frequency of the high-rise building to be measured in a non-destructive state;

[0079] Set the sub-structure on the high-rise building to be measured and adjust the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtain the target natural vibration frequency;

[0080] Obtain the vibration acceleration of the sub-structure and obtain a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration;

[0081] Obtain the target high-order frequency of the high-rise building to be measured according to the plurality of first vibration frequencies and the target natural vibration frequency.

[0082] Further, the processor 1001 can call the frequency measurement program stored in the memory 1006 and also perform the following operations:

[0083] Obtain the structural parameters of the high-rise building to be measured and establish a finite element simulation corresponding to the high-rise building to be measured according to the structural parameters;

[0084] According to the finite element simulation, use modal analysis to calculate the high-order frequency of the high-rise building to be measured.

[0085] Further, the processor 1001 can call the frequency measurement program stored in the memory 1006 and also perform the following operations:

[0086] Search for and delete the frequencies that are the same as the target natural vibration frequency among the plurality of first vibration frequencies to obtain a plurality of second vibration frequencies other than the target natural vibration frequency;

[0087] Search for the vibration frequency closest to the target natural vibration frequency among the plurality of second vibration frequencies;

[0088] Use the vibration frequency closest to the target vibration frequency as the target high-order frequency of the high-rise building to be measured.

[0089] Further, the processor 1001 can call the frequency measurement program stored in the memory 1006 and also perform the following operations:

[0090] Obtain the vibration acceleration of the sub-structure within a preset time period, and analyze the vibration acceleration using a preset Fourier transform to obtain a plurality of first vibration frequencies corresponding to the sub-structure.

[0091] Further, the processor 1001 may call the frequency measurement program stored in the memory 1006 and further perform the following operations:

[0092] Obtain the natural vibration frequency of the sub-structure, determine whether the natural vibration frequency is equal to the high-order frequency, and obtain a judgment result;

[0093] Adjust the sub-structure according to the judgment result until the natural vibration frequency is the same as the high-order frequency and obtain the target natural vibration frequency.

[0094] Further, the processor 1001 may call the frequency measurement program stored in the memory 1006 and further perform the following operations:

[0095] If the judgment result is that the natural vibration frequency is not the same as the high-order frequency, adjust the stiffness of the sub-structure until the natural vibration frequency is equal to the high-order frequency.

[0096] In addition, an embodiment of the present invention further provides a computer-readable storage medium, on which a frequency measurement program is stored. When the frequency measurement program is executed by a processor, the following operations are implemented:

[0097] Obtain the high-order frequency of the to-be-tested high-rise building in a non-destructive state;

[0098] Set the sub-structure on the to-be-tested high-rise building, and adjust the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtain the target natural vibration frequency;

[0099] Obtain the vibration acceleration of the sub-structure, and obtain a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration;

[0100] Obtain the target high-order frequency of the to-be-tested high-rise building according to the plurality of first vibration frequencies and the target natural vibration frequency.

[0101] Further, when the frequency measurement program is executed by the processor, the following operations are further implemented:

[0102] The step of obtaining the high-order frequency of the to-be-tested high-rise building in a non-destructive state includes:

[0103] Obtain the structural parameters of the to-be-tested high-rise building, and establish a finite element simulation corresponding to the to-be-tested high-rise building according to the structural parameters;

[0104] According to the finite element simulation, modal analysis is used to calculate the high-order frequencies of the high-rise building to be measured.

[0105] Further, when the frequency measurement program is executed by a processor, the following operations are also implemented:

[0106] The step of obtaining the target high-order frequency of the high-rise building to be measured according to the plurality of first vibration frequencies and the target natural vibration frequency includes:

[0107] Search for and delete the frequencies identical to the target natural vibration frequency among the plurality of first vibration frequencies to obtain a plurality of second vibration frequencies other than the target natural vibration frequency;

[0108] Search for the vibration frequency closest to the target natural vibration frequency among the plurality of second vibration frequencies;

[0109] Use the vibration frequency closest to the target vibration frequency as the target high-order frequency of the high-rise building to be measured.

[0110] Further, when the frequency measurement program is executed by a processor, the following operations are also implemented:

[0111] The step of obtaining the vibration acceleration of the sub-structure and obtaining a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration includes:

[0112] Obtain the vibration acceleration of the sub-structure within a preset time period, and analyze the vibration acceleration by using a preset Fourier transform to obtain a plurality of first vibration frequencies corresponding to the sub-structure.

[0113] Further, when the frequency measurement program is executed by a processor, the following operations are also implemented:

[0114] The step of adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency includes:

[0115] Obtain the natural vibration frequency of the sub-structure, judge whether the natural vibration frequency is equal to the high-order frequency, and obtain the judgment result;

[0116] Adjust the sub-structure according to the judgment result until the natural vibration frequency is the same as the high-order frequency and obtain the target natural vibration frequency.

[0117] Further, when the frequency measurement program is executed by a processor, the following operations are also implemented:

[0118] The step of adjusting the sub-structure according to the judgment structure until the natural vibration frequency is equal to the high-order frequency includes:

[0119] If the determination result is that the natural vibration frequency is different from the high-order frequency, adjust the stiffness of the sub-structure until the natural vibration frequency is equal to the high-order frequency.

[0120] The specific embodiments of the computer-readable storage medium of the present invention are substantially the same as those of the above-mentioned frequency measurement method embodiments, and will not be elaborated here.

[0121] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or system including that element.

[0122] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments.

[0123] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions for causing a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0124] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A frequency measurement method, characterized in that, The frequency measurement method includes the steps of: Obtaining the high-order frequency of the high-rise building to be measured in a non-destructive state; Setting a sub-structure on the high-rise building to be measured and adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency, and taking the adjusted natural vibration frequency as the target natural vibration frequency; Obtaining the vibration acceleration of the sub-structure and obtaining a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration; Searching for and deleting the frequencies that are the same as the target natural vibration frequency among the plurality of first vibration frequencies to obtain a plurality of second vibration frequencies except the target natural vibration frequency; Searching for the vibration frequency closest to the target natural vibration frequency among the plurality of second vibration frequencies; Taking the vibration frequency closest to the target natural vibration frequency as the target high-order frequency of the high-rise building to be measured.

2. The frequency measurement method according to claim 1, wherein The step of obtaining the high-order frequency of the high-rise building to be measured in a non-destructive state includes: Obtaining the structural parameters of the high-rise building to be measured and establishing a finite element simulation corresponding to the high-rise building to be measured according to the structural parameters; According to the finite element simulation, using modal analysis to calculate the high-order frequency of the high-rise building to be measured.

3. The frequency measurement method according to claim 1, characterized in that, The step of obtaining the vibration acceleration of the sub-structure and obtaining a plurality of first vibration frequencies corresponding to the sub-structure according to the vibration acceleration includes: Obtaining the vibration acceleration of the sub-structure within a preset time period and analyzing the vibration acceleration by using a preset Fourier transform to obtain a plurality of first vibration frequencies corresponding to the sub-structure.

4. The frequency measurement method according to claim 1, wherein The step of adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency includes: Obtaining the natural vibration frequency of the sub-structure, judging whether the natural vibration frequency is equal to the high-order frequency, and obtaining a judgment result; Adjusting the sub-structure according to the judgment result until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency.

5. The frequency measurement method according to claim 4, wherein The step of adjusting the sub-structure according to the judgment result until the natural vibration frequency is the same as the high-order frequency includes: If the judgment result is that the natural vibration frequency is not the same as the high-order frequency, adjusting the stiffness of the sub-structure until the natural vibration frequency is equal to the high-order frequency.

6. The frequency measurement method according to claim 1, wherein Before the step of setting the sub-structure on the high-rise building to be measured and adjusting the natural vibration frequency of the sub-structure until the natural vibration frequency is the same as the high-order frequency and obtaining the target natural vibration frequency, it further includes: Obtaining the parameters of the sub-structure and judging whether the sub-structure is in normal service according to the parameters.

7. A frequency measurement device, characterized in that, The frequency measurement device includes a sub-structure, a memory, a processor, and a frequency measurement program stored on the memory and executable on the processor. When the frequency measurement program is executed by the processor, it implements the steps of the frequency measurement method according to any one of claims 1 to 6.

8. The frequency measurement device according to claim 7, characterized in that, The sub-structure includes a mass block and an elastic member connected to the mass block, and the elastic member is fixed on the high-rise building to be measured.

9. A computer-readable storage medium, characterized in that, A frequency measurement program is stored on the computer-readable storage medium. When the frequency measurement program is executed by a processor, the steps of the frequency measurement method according to any one of claims 1 to 6 are implemented.

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