Basin-type insulator noise reproduction method and system, computer equipment and storage medium

Abstract

The invention relates to a basin-type insulator noise reproduction method and system, computer equipment, a computer readable storage medium and a computer program product. The method is applied to a basin-type insulator noise reproduction system. The basin-type insulator noise reproduction system comprises a basin-type insulator, an M-element antenna array and a data acquisition system. The method comprises the following steps: acquiring target noise data of the basin-type insulator based on a data acquisition system; obtaining an expected radiation waveform and expected field intensity distribution of the M-element antenna array based on the basin-type insulator target noise; according to the expected radiation waveform and the expected field intensity distribution of the M-element antenna array, calling a phase regulation and control model to generate an excitation signal; and adopting the excitation signal to drive the M-element antenna array, and synthesizing a basin-type insulator to reproduce noise. By adopting the method, the noise reproduction of the basin-type insulator can be realized.

Description

Technical Field

[0001] This application relates to the field of power equipment condition monitoring technology, and in particular to a method, system, computer equipment, computer-readable storage medium, and computer program product for noise reproduction of basin insulators. Background Technology

[0002] With the continuous advancement of condition monitoring and intelligent diagnostic technologies for gas-insulated metal-enclosed switchgear (GIS), online partial discharge detection technology based on the ultra-high frequency (UHF) method has become a core means to ensure the safe operation of GIS due to its high sensitivity and strong anti-interference capability. This technology uses the ultra-high frequency electromagnetic waves (300MHz~3GHz) radiated by partial discharges within the GIS to provide early warning of faults. Its performance is highly dependent on the accuracy of the signal received by the UHF sensor at the basin insulator. To ensure the long-term reliability of the UHF sensor, a standard transmitting antenna is typically used near the sensor to simulate and reproduce electromagnetic wave signals consistent with the actual partial discharge characteristics, thereby calibrating the sensor's response characteristics.

[0003] In traditional techniques, linearly polarized antennas are typically placed on GIS metal shells or flat surfaces for noise reproduction. However, due to the elliptical polarization of electromagnetic waves on the surface of basin-type insulators, traditional linearly polarized antennas experience signal loss when matched with them. Furthermore, the radius of curvature on the surface of basin-type insulators causes wavefront distortion with planar antennas, making it impossible to accurately simulate the propagation environment of electromagnetic waves. Additionally, traditional antennas cannot meet the requirement that the thickness of the antenna in a built-in sensor must be less than 5 mm.

[0004] Therefore, there is an urgent need for a method to reproduce the noise of basin-type insulators in order to solve the problem that the noise on the outer surface of GIS basin-type insulators is difficult to reproduce. Summary of the Invention

[0005] Therefore, it is necessary to provide a method, system, computer equipment, computer-readable storage medium, and computer program product that can reproduce the noise of a basin-type insulator, addressing the aforementioned technical problems.

[0006] Firstly, this application provides a method for reproducing noise in a basin-type insulator, applied to a basin-type insulator noise reproduction system. The basin-type insulator noise reproduction system includes: a basin-type insulator, an M-element antenna array, and a data acquisition and control unit; the method includes:

[0007] Based on the data acquisition and control unit, acquire target noise data of the basin insulator;

[0008] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0009] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0010] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0011] In one embodiment, the data acquisition control unit includes a detection sensor, a data acquisition system, and a noise database; based on the data acquisition control unit, the target noise of the basin insulator is acquired, including:

[0012] The system receives the target noise of the basin insulator collected by the detection sensor and converts the target noise of the basin insulator into target noise data of the basin insulator through the data acquisition system.

[0013] The target noise data of the basin insulator is stored in the noise database, and the target noise data of the basin insulator is obtained from the noise database.

[0014] In one embodiment, the target noise data of the basin insulator includes phase data and field strength data; based on the target noise of the basin insulator, the desired radiated wavefront and desired field strength distribution of the M-element antenna array are obtained, including:

[0015] Based on the phase data in the target noise data of the basin insulator, the desired radiation waveform of the M-element antenna array is obtained.

[0016] Based on the field strength data in the target noise data of the basin insulator, the expected field strength distribution of the M-element antenna array is obtained.

[0017] In one embodiment, based on the desired field strength distribution of the desired radiation waveform of the M-element antenna array, a phase modulation model is invoked to generate an excitation signal, including:

[0018] Based on the desired radiation waveform of the M-element antenna array, the phase modulation model is invoked, and a surface path compensation term is introduced to synthesize the radiation waveform data of the M-element antenna array.

[0019] Based on the desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to synthesize the objective function, and based on the objective function, the field strength distribution data of the M-element antenna array is synthesized.

[0020] An excitation signal is generated based on radiation waveform data and field strength distribution data.

[0021] In one embodiment, the M-element antenna array is driven by an excitation signal to synthesize the basin-type insulator reproduced noise, including:

[0022] The M-element antenna array is driven by an excitation signal. The M-element antenna array radiates at least one pulse signal. The at least one pulse signal is superimposed to form the noise reproduced by the basin insulator.

[0023] Secondly, this application also provides a basin-type insulator noise reproduction system, including: a basin-type insulator, an M-element antenna array, and a data acquisition and control unit; the data acquisition and control unit includes a detection sensor, a data acquisition system, and a noise database; the basin-type insulator noise reproduction system further includes a noise reproduction control unit, which includes a main controller, a power amplifier, and a phase modulator; the noise reproduction control unit is used for:

[0024] Based on the data acquisition and control unit, acquire target noise data of the basin insulator;

[0025] Based on the target noise of the basin insulator, the desired radiated wavefront and desired field strength distribution of the M-element antenna array are obtained.

[0026] Based on the desired radiated wavefront and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0027] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0028] In one embodiment, the M-element antenna array is placed on the surface of the basin insulator, the radius of curvature of the M-element antenna array satisfies a first preset condition, and the base material, diameter, thickness and impedance bandwidth of the antenna satisfy a second preset condition.

[0029] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0030] Based on the data acquisition and control unit, acquire target noise data of the basin insulator;

[0031] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0032] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0033] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0034] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0035] Based on the data acquisition and control unit, acquire target noise data of the basin insulator;

[0036] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0037] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0038] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0039] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0040] Based on the data acquisition and control unit, acquire target noise data of the basin insulator;

[0041] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0042] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0043] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0044] The aforementioned method, computer equipment, computer-readable storage medium, and computer program product for reproducing noise in a basin-type insulator are applied to a basin-type insulator noise reproduction system. The basin-type insulator noise reproduction system includes: a basin-type insulator, an M-element antenna array, and a data acquisition and control unit. The data acquisition and control unit includes a detection sensor, a data acquisition system, and a noise database. The system also includes a noise reproduction control unit, which comprises a main controller, a power amplifier, and a phase modulator. The noise reproduction control unit is used to: acquire target noise data of the basin-type insulator based on the data acquisition system; obtain the desired radiated wavefront and desired field strength distribution of the M-element antenna array based on the target noise of the basin-type insulator; call a phase modulation model to generate an excitation signal based on the desired radiated wavefront and desired field strength distribution of the M-element antenna array; and drive the M-element antenna array using the excitation signal to synthesize the reproduced noise of the basin-type insulator. This method effectively solves the signal loss and wavefront distortion problems that occur in the noise reproduction process of traditional linearly polarized antennas, more accurately simulates the electromagnetic wave propagation environment on the surface of the basin-type insulator, and thus improves the signal reception accuracy of UHF sensors. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is an application environment diagram of the basin-type insulator noise reproduction method in one embodiment;

[0047] Figure 2 This is a flowchart illustrating a method for reproducing noise using a basin-type insulator in one embodiment.

[0048] Figure 3 This is a flowchart illustrating the noise reproduction method for a basin-type insulator in another embodiment;

[0049] Figure 4 This is a system architecture diagram of a basin-type insulator noise reproduction system in one embodiment;

[0050] Figure 5 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0052] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0053] The noise reproduction method for basin-type insulators provided in this application embodiment can be applied to, for example... Figure 1In the application environment shown, terminal 102 communicates with server 104 via a network. A data storage system can store the data that server 104 needs to process. The data storage system can be integrated onto server 104 or placed on a cloud or other network server. Taking terminal 102 alone as an example, it receives the target noise of the basin-type insulator collected by the detection sensor. Terminal 102 acquires the target noise data of the basin-type insulator through a data acquisition control unit. Then, based on the target noise of the basin-type insulator, it obtains the desired radiation waveform and desired field strength distribution of the M-element antenna array. According to the desired radiation waveform and desired field strength distribution of the M-element antenna array, it calls a phase modulation model to generate an excitation signal. Finally, it uses the excitation signal to drive the M-element antenna array to synthesize the reproduced noise of the basin-type insulator. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, drones, low-altitude aircraft, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart vehicle devices, projection devices, etc. Portable wearable devices can include smartwatches, smart bracelets, and head-mounted displays. Head-mounted displays can be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc. Server 104 can be a standalone physical server, a server cluster or distributed system consisting of multiple physical servers, or a cloud server providing cloud computing services.

[0054] In one exemplary embodiment, such as Figure 2 As shown, a method for reproducing noise in a basin-type insulator is provided, which can be applied to... Figure 1 Taking the terminal in the example, the explanation includes the following steps 202 to 208. Wherein:

[0055] Step 202: Based on the data acquisition and control unit, acquire the target noise data of the basin insulator.

[0056] The data acquisition system control unit includes a detection sensor, a data acquisition system, and a noise database. The target noise is the signal output by the detection sensor, which is a continuous analog electrical signal.

[0057] For example, the ultra-high frequency signal generated by partial discharge at the basin insulator collected by the detection sensor is used as the target noise; the target noise collected by the detection sensor is received, processed by the data acquisition system, and the processed target noise data is stored in the noise database.

[0058] Step 204: Based on the target noise data of the basin insulator, obtain the desired radiation waveform and desired field strength distribution of the M-element antenna array.

[0059] The target noise data for the basin-type insulator is digitized data acquired by an ultra-high frequency sensor, characterizing the electromagnetic environment of the actual partial discharge on the surface of the basin-type insulator. It includes time-domain waveforms, frequency-domain spectra, amplitude information, phase information, and spatial information. An M-element antenna array refers to an antenna system composed of M independent antenna elements arranged in a specific geometric structure. The desired radiation waveform refers to the temporal characteristics of the electromagnetic wave that the M-element antenna array is expected to radiate into space, consistent with the frequency and time-domain characteristics of the target noise of the basin-type insulator. The desired field strength distribution refers to the specific electromagnetic field strength distribution pattern that is expected to be formed across the entire curved surface of the basin-type insulator using the M-element antenna array.

[0060] Optionally, based on the phase data and field strength data in the target noise data of the basin insulator, the radiation waveform and field strength distribution of the target noise of the basin insulator are obtained, and the radiation waveform and field strength distribution of the target noise of the basin insulator are used as the expected radiation waveform and expected field strength distribution of the M-element antenna array.

[0061] Step 206: Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, call the phase modulation model to generate the excitation signal.

[0062] The phase modulation model is a phase modulation function used to control the radiation waveform of each antenna element. The excitation signal is a specific electrical signal command sent to each antenna element in the M-element antenna array, which is the final executable result calculated by the phase modulation model.

[0063] For example, based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked for inverse calculation, and finally a set of excitation signals containing amplitude and phase parameters are output.

[0064] Step 208: Drive the M-element antenna array with an excitation signal to synthesize the noise reproduced by the basin insulator.

[0065] The excitation signal is a Gaussian pulse modulation signal generated based on the time-frequency characteristics of the target noise data.

[0066] In the above-mentioned method for reproducing noise in a basin-type insulator, the method is applied to a basin-type insulator noise reproduction system. The basin-type insulator noise reproduction system includes: a basin-type insulator, an M-element antenna array, and a data acquisition and control unit. The data acquisition and control unit includes a detection sensor, a data acquisition system, and a noise database. The basin-type insulator noise reproduction system also includes a noise reproduction control unit, which includes a main controller, a power amplifier, and a phase modulator. The noise reproduction control unit is used to: first, acquire target noise data of the basin-type insulator based on the data acquisition system; second, obtain the desired radiated wavefront and desired field strength distribution of the M-element antenna array based on the target noise of the basin-type insulator; third, call the phase modulation model to generate an excitation signal based on the desired radiated wavefront and desired field strength distribution of the M-element antenna array; and finally, use the excitation signal to drive the M-element antenna array to synthesize the reproduced noise of the basin-type insulator. This method effectively solves the signal loss and wavefront distortion problems that occur in the noise reproduction process of traditional linearly polarized antennas, more accurately simulates the electromagnetic wave propagation environment on the surface of the basin-type insulator, and thus improves the signal reception accuracy of UHF sensors.

[0067] In one embodiment, the data acquisition control unit includes a detection sensor, a data acquisition system, and a noise database; based on the data acquisition control unit, acquiring the target noise of the basin insulator includes: receiving the target noise of the basin insulator collected by the detection sensor; converting the target noise of the basin insulator into target noise data of the basin insulator through the data acquisition system; storing the target noise data of the basin insulator in the noise database; and acquiring the target noise data of the basin insulator from the noise database.

[0068] The detection sensor is a standard external UHF sensor, responsible for collecting UHF signals generated by partial discharge at the basin-type insulator. UHF refers to the electromagnetic wave frequency range detected by the sensor, typically between 300MHz and 3000MHz. "External" means the sensor is mounted outside the metal casing of the GIS equipment. The data acquisition system converts the continuous analog electrical signals output by the sensor into digital signals. It discretizes the analog signals at a set sampling rate, ensuring that the converted digital signals accurately reflect the characteristics of the original analog signals. The noise database is a dedicated database for storing and managing the target noise data of the basin-type insulator after processing by the data acquisition system. It supports rapid data retrieval, access, and analysis, providing reliable data support for subsequent noise reproduction work.

[0069] For example, the detection sensor continuously monitors the electromagnetic environment of the basin insulator surface. Once it detects a UHF signal generated by partial discharge, it immediately converts it into an electrical signal and transmits it to the data acquisition system. Upon receiving the electrical signal, the data acquisition system processes it according to a preset sampling rate and quantization precision to generate corresponding digital signal data. To ensure that the M-element antenna array can accurately reproduce the noise characteristics of the basin insulator surface, the acquired target noise data needs further analysis and processing. This involves extracting the target noise's time-domain waveform, frequency-domain spectrum, amplitude information, phase information, and spatial information, and then transmitting this data to a noise database for storage. When noise reproduction is required, the corresponding target noise data is retrieved from the noise database as the basis for subsequent processing.

[0070] In this embodiment, by organically combining the detection sensor, the data acquisition system and the noise database, the complete process management of target noise of the basin insulator from acquisition, conversion to storage can be realized, which effectively improves the acquisition efficiency and processing quality of target noise data, and lays a solid foundation for accurately reproducing the surface noise characteristics of the basin insulator.

[0071] In one embodiment, the target noise data of the basin insulator includes phase data and field strength data; based on the target noise of the basin insulator, the desired radiated wavefront and desired field strength distribution of the M-element antenna array are obtained, including: obtaining the desired radiated waveform of the M-element antenna array based on the phase data in the target noise data of the basin insulator; and obtaining the desired field strength distribution of the M-element antenna array based on the field strength data in the target noise data of the basin insulator.

[0072] The phase data includes the time-domain waveform and phase information of the target noise data of the basin insulator. It is the precise location of a specific pulse of the partial discharge electromagnetic wave, synchronized with the power grid frequency voltage, on the time axis, and the information calculated from the time difference of the same pulse arriving at sensors at different spatial locations. The field strength data includes the amplitude and spatial information of the target noise data of the basin insulator. It is the amplitude information and its spatial distribution set of the partial discharge electromagnetic wave energy intensity measured by the detection sensor at different spatial locations on the surface of the basin insulator.

[0073] Optionally, based on the phase data in the target noise data of the basin insulator, the time-domain waveform and phase information in the target noise data of the basin insulator are analyzed to obtain the radiation waveform of the target noise of the basin insulator, and the radiation waveform of the target noise of the basin insulator is used as the expected radiation waveform of the M-element antenna array.

[0074] Optionally, based on the field strength data in the target noise data of the basin insulator, the amplitude information and spatial information in the target noise data of the basin insulator are analyzed to obtain the field strength distribution of the target noise of the basin insulator, and the field strength distribution of the target noise of the basin insulator is used as the expected field strength distribution of the M-element antenna array.

[0075] In this embodiment, by performing detailed analysis on the phase data and field strength data in the target noise data of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are accurately obtained. This ensures that when the M-element antenna array reproduces the noise of the basin insulator, it not only maintains consistency with the original noise in terms of time characteristics, but also achieves a high degree of similarity in spatial distribution, thereby effectively improving the accuracy and reliability of noise reproduction.

[0076] In one embodiment, based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, a phase modulation model is invoked to generate an excitation signal, including: invoking the phase modulation model based on the desired radiation waveform of the M-element antenna array, introducing a surface path compensation term, and synthesizing the radiation waveform data of the M-element antenna array; invoking the phase modulation model based on the desired field strength distribution of the M-element antenna array, synthesizing an objective function, and synthesizing the field strength distribution data of the M-element antenna array based on the objective function; and generating an excitation signal based on the radiation waveform data and the field strength distribution data.

[0077] For example, the path compensation term is used to calculate the path difference to achieve accurate synthesis of the desired electromagnetic field on complex curved surfaces. The formula for calculating the path compensation term is:

[0078]

[0079] in, For path compensation items, This is the surface normal vector of the insulator, used to accurately compensate for path differences caused by the curved surface. Let be the target's position coordinate vector in space. For the first The position coordinate vector of each antenna element It is a vector pointing from the antenna element position to the target point position.

[0080] For example, the phase modulation model, which incorporates a curved path compensation term, is defined as a phase modulation function. This function controls the transmit phase of each element in the M-element antenna array. The phase modulation function is:

[0081]

[0082] in, For the first The spatial position of each antenna element The required overall control phase, For the first The fundamental phase offset of each antenna element For surface path compensation, For wave number.

[0083] The objective function is the field strength composition function.

[0084] For example, a field strength synthesis function can be established based on the phase modulation model. The field strength synthesis function is as follows:

[0085]

[0086] in, In spatial location and time The combined electric field strength at that location, For the first The excitation amplitude of each antenna element, For phase modulation term, The phase delay and amplitude attenuation of electromagnetic waves propagating in space. The time-delay modulated signal is used to synchronize the superposition of each antenna element at the observation point; Let be the propagation delay from the k-th unit to the target point.

[0087] Optionally, based on the desired radiation waveform of the M-element antenna array, a phase modulation model is invoked, a surface path compensation term is introduced, a phase modulation function is generated, and the radiation waveform data of the M-element antenna array is synthesized based on the phase modulation function.

[0088] Optionally, based on the desired field strength distribution of the M-element antenna array, a phase modulation model is invoked to synthesize a field strength synthesis function, and the field strength distribution data of the M-element antenna array is synthesized based on the field strength synthesis function.

[0089] In this embodiment, by introducing a phase modulation model with a curved path compensation term and a field strength synthesis function, it is possible not only to ensure the accurate synthesis of the desired electromagnetic field on complex curved surfaces, but also to accurately synthesize the field strength distribution data of the M-element antenna array. This ensures that the synthesized electric field strength is highly consistent with the original basin-type insulator target noise in both space and time, thereby improving the accuracy of noise reproduction and enhancing the reliability of the reproduction process. This provides a more accurate electromagnetic environment simulation for subsequent UHF sensor signal reception and analysis.

[0090] In one embodiment, the method of using an excitation signal to drive the M-element antenna array to synthesize basin-type insulator reproduction noise includes: driving the M-element antenna array based on the excitation signal, the M-element antenna array radiating at least one pulse signal, and the basin-type insulator reproduction noise being synthesized by superimposing the at least one pulse signal.

[0091] The excitation signal is a Gaussian pulse modulation signal, generated based on the time-frequency characteristics of the target noise.

[0092] For example, the formula for the excitation signal is:

[0093]

[0094] in, As an excitation signal, The number of Gaussian pulses, For the first The amplitude coefficient of a Gaussian pulse, pulse width , For the first The time center of a Gaussian pulse No. The pulse width parameter of a Gaussian pulse. For time variables, time precision .

[0095] For example, the excitation signal calculation formula synthesizes complex transient noise signals by linearly superimposing multiple Gaussian pulses. Each Gaussian pulse represents a basic electromagnetic emission event, and by adjusting the parameters of each pulse (amplitude, time position, width), the characteristics of various electromagnetic noises generated in actual GIS equipment are accurately simulated.

[0096] In this embodiment, a Gaussian pulse modulation signal is generated based on the time-frequency characteristics of the target noise as an excitation signal. This excitation signal is then used to drive an M-element antenna array, causing the M-element antenna array to radiate at least one pulse signal. These pulse signals are superimposed in space to synthesize the noise reproduction of the basin insulator, enabling accurate simulation of the spatial distribution of noise. This effectively improves the accuracy and reliability of the noise reproduction of the basin insulator, providing a more realistic and accurate electromagnetic environment simulation for subsequent UHF sensor signal reception and analysis.

[0097] The following is for reference. Figure 3 The method for reproducing noise in a basin-type insulator of this application will be further illustrated by a specific embodiment.

[0098] This method is applied to a basin-type insulator noise reproduction system, which includes a basin-type insulator, an M-element antenna array, and a data acquisition and control unit. The data acquisition and control unit includes a detection sensor, a data acquisition system, and a noise database. The basin-type insulator noise reproduction system also includes a noise reproduction control unit, which includes a main controller, a power amplifier, and a phase modulator.

[0099] To reproduce the extraterrestrial noise of a 500kV GIS basin insulator, an 8-element flexible antenna array was used. The GIS curvature radius was 600mm, the antenna operating frequency band was 300MHz-3GHz, and the antenna used a thermosetting polyimide flexible substrate with a diameter of less than or equal to 150mm and a thickness of less than or equal to 0.3mm.

[0100] The data control unit receives the target noise of the basin insulator collected by the detection sensor. The target noise is the 500kV GIS basin insulator extension noise. The 500kV GIS basin insulator extension noise is transmitted to the data acquisition system. After receiving the electrical signal, the data acquisition system processes it according to the preset sampling rate and quantization accuracy to generate corresponding digital signal data. To ensure that the 8-element antenna array can accurately reproduce the noise characteristics of the basin insulator surface, the acquired 500kV GIS basin insulator extension noise data needs to be further analyzed and processed. The time-domain waveform, frequency-domain spectrum, amplitude information, phase information, and spatial information of the 500kV GIS basin insulator extension noise are extracted from the 500kV GIS basin insulator extension noise data, and then the data is transmitted to the noise database for storage. The main controller in the noise reproduction control unit obtains the 500kV GIS basin insulator extension noise data from the noise database. The 500kV GIS basin-type insulator epitaxial noise data includes field strength data and phase data. The phase data includes the time-domain waveform and phase information from the 500kV GIS basin-type insulator epitaxial noise data, obtaining the radiation waveform of the 500kV GIS basin-type insulator epitaxial noise. This radiation waveform is used as the expected radiation waveform for the 8-element antenna array. Additionally, the 500kV GIS basin-type insulator epitaxial noise field strength data includes amplitude and spatial information, obtaining the field strength distribution of the 500kV GIS basin-type insulator epitaxial noise. This field strength distribution is used as the expected field strength distribution for the 8-element antenna array.

[0101] The main controller in the noise reproduction control unit begins processing the 500kV GIS basin insulator epitaxial noise data. Based on the desired radiation waveform of the 8-element antenna array, it calls the phase modulation model, introduces a surface path compensation term, and sets the phase modulation as follows:

[0102]

[0103] Among them, the matrix phase shift The main controller inputs the phase modulation settings as the radiation waveform data of the 8-element antenna array into the phase modulator.

[0104] Based on the desired field strength distribution of the 8-element antenna array, the phase modulation model is invoked to synthesize the field strength synthesis function. Based on the field strength synthesis function, the field strength control settings are obtained:

[0105]

[0106] The field strength distribution data of the 8-element antenna array is synthesized. The main controller inputs the field strength control settings as the field strength distribution data of the 8-element antenna array into the power amplifier.

[0107] An excitation signal is generated based on radiation waveform data and field strength distribution data.

[0108] The excitation signal is:

[0109]

[0110] Finally, the main controller drives the 8-element antenna array based on the excitation signal, adjusting the power amplifier and phase controller. The 8-element antenna array will radiate three pulse signals, which are as follows:

[0111] Pulse 1: The rise time is approximately 1.88 ns, simulating fast switching transients.

[0112] Pulse 2: Appears after a 5ns delay, simulating reflection or secondary discharge.

[0113] Pulse 3: Wider pulse ( ), simulating low-frequency oscillation components.

[0114] The superposition of the three pulses covers the UHF detection band of 300MHz-3GHz in the frequency domain and forms a complex transient waveform in the time domain. The superposition of the three pulse signals synthesizes the reproduction noise of the basin insulator, which can accurately reproduce the extraterrestrial noise of the 500kV GIS basin insulator.

[0115] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0116] Based on the same inventive concept, this application also provides a basin-type insulator noise reproduction system for implementing the above-mentioned basin-type insulator noise reproduction method. The solution provided by this system is similar to the implementation scheme described in the above method. Therefore, the specific limitations of one or more basin-type insulator noise reproduction system embodiments provided below can be found in the limitations of the basin-type insulator noise reproduction method above, and will not be repeated here.

[0117] In one exemplary embodiment, such as Figure 4 As shown, a basin-type insulator noise reproduction system 400 is provided, including: a basin-type insulator, an M-element antenna array 418, and a data acquisition and control unit 402; the data acquisition and control unit 402 includes a detection sensor 406, a data acquisition system 408, and a noise database 410; the basin-type insulator noise reproduction system 400 further includes a noise reproduction control unit 404, which includes a main controller 412, a power amplifier 416, and a phase modulator 414; the noise reproduction control unit 404 is used for:

[0118] Based on the data acquisition and control unit, acquire target noise data of the basin insulator;

[0119] Based on the target noise of the basin insulator, the desired radiated wavefront and desired field strength distribution of the M-element antenna array are obtained.

[0120] Based on the desired radiated wavefront and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0121] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0122] In one embodiment, the noise reproduction control unit 404 is further configured to receive the target noise of the basin insulator collected by the detection sensor, convert the target noise of the basin insulator into target noise data of the basin insulator through the data acquisition system, store the target noise data of the basin insulator in the noise database, and obtain the target noise data of the basin insulator from the noise database.

[0123] In one embodiment, the noise reproduction control unit 404 is further configured to obtain the desired radiation waveform of the M-element antenna array based on the phase data in the target noise data of the basin insulator; and to obtain the desired field strength distribution of the M-element antenna array based on the field strength data in the target noise data of the basin insulator.

[0124] In one embodiment, the noise reproduction control unit 404 is further configured to: invoke a phase modulation model and introduce a surface path compensation term to synthesize radiation waveform data of the M-element antenna array according to the desired radiation waveform of the M-element antenna array; invoke a phase modulation model to synthesize an objective function according to the desired field strength distribution of the M-element antenna array; synthesize field strength distribution data of the M-element antenna array based on the objective function; and generate an excitation signal based on the radiation waveform data and the field strength distribution data.

[0125] In one embodiment, the noise reproduction control unit 404 is also used to drive an M-element antenna array based on an excitation signal, the M-element antenna array radiating at least one pulse signal, and the at least one pulse signal being superimposed to synthesize the noise reproduction of the basin insulator.

[0126] In one embodiment, the M-element antenna array 418 is placed on the surface of the basin insulator 420, the radius of curvature of the M-element antenna array satisfies a first preset condition, and the base material, diameter, thickness and impedance bandwidth of the antenna satisfy a second preset condition.

[0127] The first preset condition is that the array curvature radius R must satisfy: ,in, The first condition is the radius of curvature of the insulator; the second condition is that the antenna must use a thermosetting polyimide flexible substrate with a diameter of less than or equal to 150 mm and a thickness of less than or equal to 0.3 mm, and the voltage standing wave ratio (VSWR) must be less than or equal to 5 in the 720 MHz-3 GHz frequency band.

[0128] In this embodiment, by precisely setting the radius of curvature of the M-element antenna array and parameters such as the antenna substrate material, diameter, thickness, and impedance bandwidth, it is possible to ensure that the M-element antenna array fits well with the surface of the basin insulator, thereby more accurately simulating the radiation characteristics of the target noise of the basin insulator in space.

[0129] Each unit in the aforementioned basin-type insulator noise reproduction system can be implemented entirely or partially through software, hardware, or a combination thereof. These units can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each unit.

[0130] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 5 As shown, the computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores target noise data for basin-type insulators. The I / O interfaces are used for information exchange between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for reproducing noise from basin-type insulators.

[0131] Those skilled in the art will understand that Figure 5 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0132] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0133] Based on the data acquisition system, acquire target noise data of the basin insulator;

[0134] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0135] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0136] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0137] In one embodiment, when the processor executes the computer program, it further performs the following steps: receiving the target noise of the basin insulator collected by the detection sensor, converting the target noise of the basin insulator into target noise data of the basin insulator through the data acquisition system; storing the target noise data of the basin insulator in a noise database, and retrieving the target noise data of the basin insulator from the noise database.

[0138] In one embodiment, when the processor executes the computer program, it further performs the following steps: obtaining the desired radiation waveform of the M-element antenna array based on the phase data in the target noise data of the basin insulator; and obtaining the desired field strength distribution of the M-element antenna array based on the field strength data in the target noise data of the basin insulator.

[0139] In one embodiment, when the processor executes the computer program, it further performs the following steps: based on the desired radiation waveform of the M-element antenna array, it calls the phase modulation model, introduces a surface path compensation term, and synthesizes the radiation waveform data of the M-element antenna array; based on the desired field strength distribution of the M-element antenna array, it calls the phase modulation model, synthesizes the objective function, and based on the objective function, synthesizes the field strength distribution data of the M-element antenna array; and based on the radiation waveform data and the field strength distribution data, it generates an excitation signal.

[0140] In one embodiment, when the processor executes the computer program, it also performs the following steps: driving an M-element antenna array based on an excitation signal, the M-element antenna array radiating at least one pulse signal, and the at least one pulse signal being superimposed to synthesize a basin-type insulator reproducing noise.

[0141] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0142] Based on the data acquisition system, acquire target noise data of the basin insulator;

[0143] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0144] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0145] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0146] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: receiving the target noise of the basin insulator collected by the detection sensor, converting the target noise of the basin insulator into target noise data of the basin insulator through the data acquisition system; storing the target noise data of the basin insulator in a noise database, and retrieving the target noise data of the basin insulator from the noise database.

[0147] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: obtaining the desired radiation waveform of the M-element antenna array based on the phase data in the target noise data of the basin insulator; and obtaining the desired field strength distribution of the M-element antenna array based on the field strength data in the target noise data of the basin insulator.

[0148] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: based on the desired radiation waveform of the M-element antenna array, it calls the phase modulation model, introduces a surface path compensation term, and synthesizes the radiation waveform data of the M-element antenna array; based on the desired field strength distribution of the M-element antenna array, it calls the phase modulation model, synthesizes the objective function, and based on the objective function, synthesizes the field strength distribution data of the M-element antenna array; and based on the radiation waveform data and the field strength distribution data, it generates an excitation signal.

[0149] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: driving an M-element antenna array based on an excitation signal, the M-element antenna array radiating at least one pulse signal, and the at least one pulse signal being superimposed to synthesize a basin-type insulator reproducing noise.

[0150] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0151] Based on the data acquisition system, acquire target noise data of the basin insulator;

[0152] Based on the target noise of the basin insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained.

[0153] Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal;

[0154] An M-element antenna array is driven by an excitation signal to synthesize noise from a basin-type insulator.

[0155] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: receiving the target noise of the basin insulator collected by the detection sensor, converting the target noise of the basin insulator into target noise data of the basin insulator through the data acquisition system; storing the target noise data of the basin insulator in a noise database, and retrieving the target noise data of the basin insulator from the noise database.

[0156] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: obtaining the desired radiation waveform of the M-element antenna array based on the phase data in the target noise data of the basin insulator; and obtaining the desired field strength distribution of the M-element antenna array based on the field strength data in the target noise data of the basin insulator.

[0157] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: based on the desired radiation waveform of the M-element antenna array, it calls the phase modulation model, introduces a surface path compensation term, and synthesizes the radiation waveform data of the M-element antenna array; based on the desired field strength distribution of the M-element antenna array, it calls the phase modulation model, synthesizes the objective function, and based on the objective function, synthesizes the field strength distribution data of the M-element antenna array; and based on the radiation waveform data and the field strength distribution data, it generates an excitation signal.

[0158] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: driving an M-element antenna array based on an excitation signal, the M-element antenna array radiating at least one pulse signal, and the at least one pulse signal being superimposed to synthesize a basin-type insulator reproducing noise.

[0159] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0160] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0161] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for reproducing noise in a basin-type insulator, characterized in that, An application is made in a basin-type insulator noise reproduction system, the basin-type insulator noise reproduction system comprising: a basin-type insulator, an M-element antenna array, and a data acquisition and control unit; the method comprises: Based on the data acquisition and control unit, acquire target noise data of the basin insulator; Based on the target noise of the basin-type insulator, the desired radiation waveform and desired field strength distribution of the M-element antenna array are obtained; Based on the desired radiation waveform and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal; The excitation signal is used to drive the M-element antenna array to synthesize the noise reproduced by the basin insulator.

2. The method according to claim 1, characterized in that, The data acquisition and control unit includes a detection sensor, a data acquisition system, and a noise database; the acquisition of the target noise of the basin insulator based on the data acquisition and control unit includes: The system receives the target noise of the basin-type insulator collected by the detection sensor and converts the target noise of the basin-type insulator into target noise data of the basin-type insulator through the data acquisition system. The target noise data of the basin-type insulator is stored in the noise database, and the target noise data of the basin-type insulator is obtained from the noise database.

3. The method according to claim 1, characterized in that, The target noise data of the basin-type insulator includes phase data and field strength data; obtaining the desired radiated wavefront and desired field strength distribution of the M-element antenna array based on the target noise of the basin-type insulator includes: Based on the phase data in the target noise data of the basin insulator, the desired radiation waveform of the M-element antenna array is obtained; Based on the field strength data in the target noise data of the basin insulator, the desired field strength distribution of the M-element antenna array is obtained.

4. The method according to claim 1, characterized in that, The step of generating an excitation signal by calling a phase modulation model based on the desired radiation waveform and desired field strength distribution of the M-element antenna array includes: Based on the desired radiation waveform of the M-element antenna array, the phase modulation model is invoked, a surface path compensation term is introduced, and the radiation waveform data of the M-element antenna array is synthesized. Based on the desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to synthesize the objective function, and the field strength distribution data of the M-element antenna array is synthesized based on the objective function. An excitation signal is generated based on the radiation waveform data and the field strength distribution data.

5. The method according to claim 1, characterized in that, The step of using the excitation signal to drive the M-element antenna array and synthesizing the basin-type insulator reproduced noise includes: The M-element antenna array is driven by the excitation signal, and the M-element antenna array radiates at least one pulse signal. The at least one pulse signal is superimposed to form the reproducible noise of the basin insulator.

6. A noise reproduction system for a basin-type insulator, characterized in that, The system includes: a basin-type insulator, an M-element antenna array, and a data acquisition and control unit; the data acquisition and control unit includes a detection sensor, a data acquisition system, and a noise database; the basin-type insulator noise reproduction system further includes a noise reproduction control unit, which includes a main controller, a power amplifier, and a phase modulator; the noise reproduction control unit is used for: Based on the data acquisition and control unit, acquire target noise data of the basin insulator; Based on the target noise of the basin insulator, the desired radiated wavefront and desired field strength distribution of the M-element antenna array are obtained. Based on the desired radiated wavefront and desired field strength distribution of the M-element antenna array, the phase modulation model is invoked to generate the excitation signal; The excitation signal is used to drive the M-element antenna array to synthesize the noise reproduced by the basin insulator.

7. The system according to claim 6, characterized in that, The M-element antenna array is placed on the surface of the basin insulator. The radius of curvature of the M-element antenna array satisfies a first preset condition, and the base material, diameter, thickness, and impedance bandwidth of the antenna satisfy a second preset condition.

8. 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.

9. 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.

10. 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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