An electric field measurement method, system, device, and medium based on electric field fusion.

Abstract

This invention discloses an electric field measurement method, system, device, and medium based on electric field fusion, belonging to the field of electric field measurement technology in power systems. The method includes: collecting corresponding electric field data from a known electric field and constructing a mathematical model of the known electric field; fusing the known electric field and the electric field to be measured to form a fused electric field and constructing a mathematical model of the fused electric field; performing second-order difference operations on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field; preprocessing the virtual electric field signal collected from the fused electric field and then converting it into a digital signal; and substituting the processed signal into the fused mathematical model for inversion calculation to obtain the true field strength value of the electric field to be measured. This invention, by introducing a known electric field and establishing a fused mathematical model, combining second-order difference and balance correction to eliminate noise interference, and digitizing the fused signal for inversion calculation, can accurately obtain the true field strength of the electric field to be measured and convert it into voltage, improving measurement accuracy, stability, and adaptability to complex environments.

Description

Technical Field

[0001] This invention relates to the field of electric field measurement technology in power systems, and specifically to an electric field measurement method, system, equipment, and medium based on electric field fusion. Background Technology

[0002] Accurate measurement of electric field voltage is crucial in numerous scientific research, industrial production, and everyday life scenarios. For example, in power systems, precise measurement of the electric field around transmission lines helps assess its impact on the environment and human health; in semiconductor manufacturing, precise control of the electric field directly affects product quality and performance.

[0003] Traditional electric field measurement devices have limitations in terms of measurement accuracy and stability. Common electric field measurement methods, such as capacitance measurement, are easily affected by environmental factors (such as temperature and humidity), leading to deviations in the measurement results. Inductive measurement methods, on the other hand, lack sufficient sensitivity when measuring weak electric fields, making it difficult to accurately obtain voltage information. Furthermore, when measuring complex electric field environments, existing devices often cannot effectively distinguish between electric field signals from different sources, significantly reducing the accuracy of the measurement results and making them susceptible to interference from other electric fields. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention is proposed.

[0005] Therefore, the technical problem solved by this invention is: how to accurately obtain the true voltage of the electric field under test in a complex electric field environment, and overcome the problems of insufficient measurement accuracy and poor stability caused by environmental interference, noise fluctuation and superposition of multiple electric fields in traditional electric field measurement methods.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electric field measurement method based on electric field fusion, which includes collecting corresponding electric field data under three states of known electric field being positive voltage, zero potential and negative voltage respectively, and constructing a mathematical model of the known electric field; Based on the principle of superposition of electric fields, the known electric field and the electric field to be measured are merged to form a fused electric field, and a mathematical model of the fused electric field is constructed. Perform second-order difference operations on the mathematical model of the fused electric field to eliminate the field strength error generated by the fused electric field; The virtual electric field signal collected by the fused electric field is preprocessed and then converted into a digital signal; The processed digital signal is substituted into the fusion mathematical model for inversion calculation to optimize the true field strength value of the electric field to be measured.

[0007] As a preferred embodiment of the electric field measurement method based on electric field fusion described in this invention, the step of collecting corresponding electric field data and constructing a mathematical model of the known electric field under three states—positive voltage, zero potential, and negative voltage—includes the following: According to a set voltage switching sequence, a known electric field is alternately applied in three states: positive voltage, zero potential, and negative voltage. The variation law of the positive voltage segment and the negative voltage segment is described by exponential function and cosine function, and the expression is: in, , , The driving parameters are the known electric fields for positive voltage, negative voltage, and zero potential, respectively. Over time, the three-cycle electric fields switch according to an average distribution. For a period of time, The maximum value of the applied DC electric field. This is the polarization effect of the electric field strength. The polarization coefficient is... The maximum frequency of the known electric field is given.

[0008] As a preferred embodiment of the electric field measurement method based on electric field fusion described in this invention, the step of fusing the known electric field and the electric field to be measured to form a fused electric field according to the principle of electric field superposition, and constructing a mathematical model of the fused electric field, includes: When collecting composite electric field data under different external loading conditions, three sets of data were acquired under positive voltage, zero potential, and negative voltage conditions. Based on the principle of electric field superposition, a fusion relationship between the electric field to be measured and the known electric field was established, and a mathematical model of the fused electric field was constructed, the expression of which is: in, The fusion coefficient is... This is the equivalent distance between the electric dipole plates. The original field strength, Let be the distance between the known electric field and the electric field to be measured. For a 180° offset angle operator, It is the equilibrium constant. , These are the calculated values ​​of the electric field strength under positive and negative voltage conditions, respectively. Calculated electric field strength when the potential is zero.

[0009] By constructing a fused electric field mathematical model using electric field data acquired under three states—positive voltage, zero potential, and negative voltage—the coupling relationship between the measured electric field and the externally applied known electric field can be clearly expressed mathematically, transforming the complex electric field superposition process into an analytical equation system. The fused electric field mathematical model ensures clear derivation logic and repeatability when inverting to solve for the measured electric field, avoiding uncertainties arising from relying on empirical formulas or single-point measurements.

[0010] As a preferred embodiment of the electric field measurement method based on electric field fusion described in this invention, the step of performing a second-order difference operation on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field includes: The amplitude of the merged electric field is collected and subjected to second-order difference calculation to eliminate the error in the amplitude of the merged field strength. The measured amplitude is then represented as a sequence. ,in, It is the amplitude of the first sample collected. It is the amplitude of the second one collected. It is the amplitude of the nth sample. Perform a first-order difference operation, the expression is: in, Is the number collected The amplitude of each, For the first-order difference operation in the th The calculation results at the location; Perform second-order difference operations, the expression is: in, To obtain the total number of amplitudes, For the first-order difference operation in the th The calculation results at that location For the second-order difference operation at the th The calculation results at the location; in, This is the equilibrium constant.

[0011] By performing first-order and second-order difference operations on the fused electric field data sequentially and introducing a balance constant correction, measurement errors caused by environmental disturbances, sampling drift, and system noise can be effectively offset.

[0012] Second-order difference operations can reduce the impact of random fluctuations on the accuracy of the solution while maintaining the integrity of the original data information, making the data on which the subsequent inversion calculation is based more stable and reliable, thereby improving the accuracy of the measured electric field strength and the stability of the measurement process.

[0013] As a preferred embodiment of the electric field measurement method based on electric field fusion described in this invention, the step of preprocessing the virtual electric field signal collected by the fused electric field and then converting it into a digital signal includes: The virtual electric field signal collected by the fused electric field is filtered, amplified and preprocessed to remove noise interference, and then the preprocessed analog signal is converted into a digital signal using an analog-to-digital converter.

[0014] As a preferred embodiment of the electric field measurement method based on electric field fusion described in this invention, the step of substituting the processed digital signal into the fusion mathematical model for inversion calculation to optimize the true field strength value of the electric field to be measured includes: The true electric field strength of the measured electric field is obtained by calculating and analyzing the digital signal. The expression is as follows: in, The actual electric field strength value of the electric field to be measured. For proportional transfer function, The original measured value of the electric field strength of the electric field to be measured is given. Here is the coupling coefficient for each modulation channel. For dynamically modulated field strength.

[0015] As a preferred embodiment of the electric field measurement method based on electric field fusion described in this invention, the proportional transfer function is expressed as: =L L= in, L For temperature and humidity calibration coefficients, Indicates the measured temperature. Indicates the measured humidity. Standard temperature This is the standard humidity.

[0016] Another objective of this invention is to provide an electric field measurement system based on electric field fusion. This invention addresses the problem that existing measurement methods are easily affected by environmental factors (such as temperature and humidity), leading to measurement deviations, insufficient sensitivity, and difficulty in accurately obtaining voltage information of the electric field. Simultaneously, it solves the problem that when measuring complex electric field environments, existing devices often cannot effectively distinguish electric field signals from different sources, resulting in significantly reduced accuracy and susceptibility to interference from other electric fields.

[0017] As a preferred embodiment of the electric field measurement system based on electric field fusion described in this invention, it is characterized by including a module for constructing a known electric field mathematical model, a module for constructing a fused electric field mathematical model, a preprocessing module, a conversion module, and a calculation output module; The module for constructing a mathematical model of a known electric field collects corresponding electric field data under three states: positive voltage, zero potential, and negative voltage, and then constructs a mathematical model of the known electric field. The module for constructing a fused electric field mathematical model is based on the principle of electric field superposition, which merges the known electric field and the electric field to be measured to form a fused electric field, and constructs a fused electric field mathematical model. The preprocessing module performs second-order difference operations on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field. The conversion module preprocesses the virtual electric field signal collected by the fused electric field and then converts it into a digital signal. The calculation module substitutes the processed digital signal into the fusion mathematical model for inversion calculation, optimizes the true field strength value of the electric field to be measured, converts the field strength value of the electric field to be measured into voltage magnitude, and outputs and displays the measurement results.

[0018] A computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the electric field measurement method based on electric field fusion.

[0019] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the electric field measurement method based on electric field fusion.

[0020] The beneficial effects of this invention are as follows: This invention introduces a known electric field with a clear mathematical definition into the electric field environment to be measured, and alternately applies it under three states: positive voltage, zero potential, and negative voltage to form a regular fused electric field. The data collected under different states are combined with the principle of electric field superposition to establish a fused mathematical model. The model is then filtered and subjected to second-order difference operations to cancel environmental interference and system noise, and a balance constant correction is introduced to reduce random errors, thereby ensuring the stability and accuracy of the data processing process. Subsequently, the virtual signal of the fused electric field is converted into a digital signal through analog-to-digital conversion, and then substituted into the fused model for demodulation and inversion calculation. Finally, the true field strength value of the electric field to be measured corresponding to the voltage conversion coefficient is obtained. This invention achieves the effect of effectively distinguishing different electric field components and accurately calculating the target electric field voltage even in complex electric field environments, significantly improving the accuracy, stability, and environmental adaptability of the measurement results. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 The present invention provides an overall flowchart of an electric field measurement method based on electric field fusion, which is an embodiment of the present invention.

[0023] Figure 2 This is a diagram of an experimental setup for an electric field measurement method based on electric field fusion, provided as an embodiment of the present invention.

[0024] Figure 3 This invention provides an embodiment of an electric field measurement method based on electric field fusion, which measures the change of the original electric field value at 25°C and humidity.

[0025] Figure 4 This invention provides a scheme for an electric field measurement system based on electric field fusion, which measures the change of the original electric field value with temperature under 45% humidity. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] Example 1, referring to Figure 1 This is one embodiment of the present invention, which provides an electric field measurement method based on electric field fusion, comprising: Suppose a plastic casing made of conductive material contains a capacitance electric field measuring device. This measuring device is installed around a -110 volt electric field to be measured. Now, an alternating electric field is applied to the casing from +110 to GND and then from -110 to GND. When a +110 voltage is applied, the measured electric field magnitude decreases. When it becomes GND, the measured electric field data increases dramatically. When it is changed to -110, the measured electric field is slightly lower than before the electric field was applied.

[0028] When applying +110V: The surface of the plastic casing is made of conductive material. When a +110V voltage is applied, the casing forms a positively charged electric field source. According to the principle of superposition of electric fields, it will interact with the surrounding -110V electric field.

[0029] Because opposite charges attract each other, the +110V electric field attracts negative charges from the -110V electric field, causing a change in the electric field distribution around the capacitance electric field measuring device. The electric field strength originally generated by the -110V electric field at the measuring device is weakened, resulting in a decrease in the magnitude of the electric field measured by the measuring device.

[0030] When it becomes GND: When the voltage of the casing becomes GND (grounded, which can be considered as zero potential), the casing is no longer an electric field source. At this time, the -110V electric field is no longer disturbed by the electric field of the casing, and its electric field lines can be freely distributed to the measuring device.

[0031] Compared to when a +110V voltage is applied, more electric field lines pass through the capacitor plates of the measuring device, causing more charge to be induced on the plates, resulting in a surge in the data measured by the measuring device.

[0032] When changed to -110: When a -110V voltage is applied, the outer casing forms a negatively charged electric field source. This field has the same sign as the -110V electric field, and according to the principle that like charges repel each other, the -110V electric field will repel the electric field lines of the -110V electric field.

[0033] However, since the voltage difference between -110V and -110V is relatively small, the resulting repulsive effect is insufficient to cause a significant change in the electric field distribution around the measuring device, so the electric field measured by the measuring device remains basically unchanged.

[0034] Based on the above principles, a method for measuring electric fields based on the superposition of electric fields is proposed.

[0035] S1. Under the three states of positive voltage, zero potential and negative voltage of the known electric field, collect the corresponding electric field data and construct a mathematical model of the known electric field.

[0036] S2. Based on the principle of superposition of electric fields, the known electric field and the electric field to be measured are merged to form a fused electric field, and a mathematical model of the fused electric field is constructed.

[0037] S3. Perform second-order difference operations on the mathematical model of the fused electric field to eliminate the field strength error generated by the fused electric field.

[0038] S4. The virtual electric field signal collected by the fused electric field is preprocessed and then converted into a digital signal.

[0039] S5. Substitute the processed digital signal into the fusion mathematical model for inversion calculation to optimize the true field strength value of the electric field to be measured.

[0040] Example 2, an embodiment of the present invention, provides an electric field measurement method based on electric field fusion, based on the previous embodiment, including: In step S1, electric field data is collected under three states: positive voltage, zero potential, and negative voltage. A mathematical model of the known electric field is then constructed, including the following steps: First, a stable electric field, called the known electric field, is generated. Then, according to a predetermined voltage switching sequence, the known electric field is alternately applied under three states: positive voltage, zero potential, and negative voltage. The variation patterns of the positive and negative voltage segments are described using exponential and cosine functions, thus constructing a mathematical model of the known electric field, expressed as: in, 、 、 The driving parameters are the known electric fields for positive voltage, negative voltage, and zero potential, respectively. Over time, the three-cycle electric fields switch according to an average distribution. For a period of time, The maximum value of the applied DC electric field. This is the polarization effect of the electric field strength. The polarization coefficient is... The maximum frequency of the known electric field is given.

[0041] This is the polarization coefficient, typically taken as 0.5. Given the maximum frequency of the electric field, and considering that the field strength difference at the application site is less than 50.2 Hz, the maximum frequency is taken as 50.2 Hz.

[0042] In step S2, based on the principle of superposition of electric fields, the known electric field and the electric field to be measured are fused to form a fused electric field, and a mathematical model of the fused electric field is constructed, including the following steps: The known electric field and the electric field to be measured are superimposed in space to produce a merged electric field. Since the characteristics of electric field fusion are known, a mathematical model of the merged electric field is constructed, and its expression is: in, The fusion coefficient is... This is the equivalent electric dipole plate distance, a standard parameter. The original electric field strength was obtained through measurement. Let be the distance between the known electric field and the electric field to be measured. For a 180° offset angle operator, It is the equilibrium constant. , These are the calculated values ​​of the electric field strength under positive and negative voltage conditions, respectively. Calculated electric field strength when the potential is zero.

[0043] In step S3, a second-order difference operation is performed on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field, including the following steps: The amplitude of the merged electric field is collected and a second-order difference operation is performed to eliminate the error in the amplitude of the field strength after fusion.

[0044] To maintain the balance constant, a second-order difference operation is performed on the amplitude measured in the signal acquisition stage of the fused electric field to eliminate the field strength error after fusion.

[0045] To eliminate the field strength error caused by the fusion of the electric field, a second-order difference operation is performed on the mathematical model of the fused electric field. This includes collecting the amplitude of the fused electric field, performing a second-order difference operation to eliminate the error in the amplitude of the fused field strength, and representing the measured amplitude as a sequence. ,in, It is the amplitude of the first sample collected. It is the amplitude of the second one collected. It is the amplitude of the nth sample.

[0046] Perform a first-order difference operation, the expression is: in, Is the number collected The amplitude of each, For the first-order difference operation in the th The calculation results at that location.

[0047] Perform second-order difference operations, the expression is: in, To obtain the total number of amplitudes, For the first-order difference operation in the th The calculation results at that location For the second-order difference operation at the th The calculation results at that location.

[0048] in, This is the equilibrium constant.

[0049] In step S4, the virtual electric field signal collected by the fused electric field is preprocessed and then converted into a digital signal, including the following steps: The virtual electric field signal collected by the fused electric field is preprocessed by filtering and amplification to remove noise interference and improve signal quality.

[0050] The preprocessed virtual electric field signal is converted into a digital signal using an ADC (Analog-to-Digital Converter) for analysis.

[0051] In this invention, a preferred method is to convert the time-domain signal into a frequency-domain signal using Fourier transform. By analyzing the characteristics of the synthesized electric field signal in the frequency domain, the frequency components of the electric field to be measured and the fused electric field are separated. Based on the known parameters of the fused electric field and the temperature and humidity calibration coefficient of the electric field to be measured, the influence of temperature and humidity on the fused electric field and measurement errors are eliminated. By solving a specific set of equations, the magnitude of the voltage of the measured electric field is calculated.

[0052] In step S5, the processed digital signal is substituted into the fusion mathematical model for inversion calculation to optimize the true field strength value of the electric field to be measured, including the following steps: The true electric field strength of the measured electric field is obtained by calculating and analyzing the digital signal. The expression is as follows: in, Here is the coupling coefficient for each modulation channel. For when When the positive voltage has a known electric field driving parameter and coupling coefficient, For when When the negative voltage has a known electric field driving parameter coupling coefficient, For when At zero potential, the coupling coefficient of the driving parameters of the known electric field is... , All parameters are fixed parameters of known power plant equipment. The actual electric field strength value of the electric field to be measured. For proportional transfer function, The original measured value of the electric field strength of the electric field to be measured is given. For dynamically modulated field strength.

[0053] β= in, The modulation field strength is the driving parameter of a positive voltage and a known electric field. The modulation field strength is the driving parameter of the electric field with a negative voltage and known electric field. The modulation field strength is the driving parameter of a known electric field at zero potential. β is the modulation coefficient.

[0054] =L L= in, L For temperature and humidity calibration coefficients, Indicates the measured temperature. Indicates the measured humidity. This indicates a standard temperature of 20℃. This indicates a standard humidity of 45%.

[0055] Example 3 is an embodiment of the present invention. This embodiment provides an electric field measurement system based on electric field fusion, including: a module for constructing a known electric field mathematical model, a module for constructing a fused electric field mathematical model, a preprocessing module, a conversion module, and a calculation output module.

[0056] The module for constructing a mathematical model of a known electric field collects corresponding electric field data under three states: positive voltage, zero potential, and negative voltage, and then constructs a mathematical model of the known electric field.

[0057] The module for constructing a fused electric field mathematical model is based on the principle of electric field superposition, which merges the known electric field and the electric field to be measured to form a fused electric field, and then constructs a fused electric field mathematical model.

[0058] The preprocessing module performs second-order difference operations on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field.

[0059] The conversion module preprocesses the virtual electric field signal collected from the fused electric field and then converts it into a digital signal.

[0060] The calculation module substitutes the processed digital signal into the fusion mathematical model for inversion calculation, optimizes the true field strength value of the electric field to be measured, converts the field strength value of the electric field to be measured into voltage magnitude, and outputs and displays the measurement results.

[0061] Example 4, refer to Figure 2 and Figure 4 This is one embodiment of the present invention, which provides an electric field measurement method based on electric field fusion. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through experiments.

[0062] Reference Figure 2 In an environmental test chamber, changes in temperature and humidity are simulated to test the environmental adaptability of the electric field measuring device of the present invention.

[0063] Since environmental factors such as temperature and humidity have a complex effect on electrostatic fields, in order to verify the adaptability of the measuring device to different temperature and humidity environments, auxiliary materials such as the known electric field mathematical model module, the module for constructing a fusion electric field mathematical model, the preprocessing module, the conversion module, and the calculation output module were placed in the environmental test chamber.

[0064] Set the temperature of the environmental test chamber to a fixed value of 25℃ and the humidity to 5%RH. Start all test equipment and increase the humidity in the environmental test chamber by 5%RH every 30 minutes, adjusting the maximum humidity to 85%RH.

[0065] Set the humidity of the environmental test chamber to a fixed value of 45%RH and the temperature to 15℃. Start all test equipment and increase the temperature inside the environmental test chamber by 2℃ every 30 minutes, adjusting the maximum temperature to 51℃.

[0066] The relevant data on the ambient humidity and the original values ​​of the electric field measurement at a temperature of 25°C recorded in this embodiment are shown in Table 1.

[0067] Table 1. Original measured data at 25℃

[0068] The ambient temperature and original electric field measurement data at a humidity of 45% described in this embodiment are shown in Table 2.

[0069] Table 2. Measurement data of the original electric field at a humidity of 45%

[0070] like Figure 3 By adjusting the temperature and humidity values ​​of the environmental test chamber, under the same electric field environment, the influence of humidity on the test data of the electric field measuring device of the present invention follows a standard normal distribution. The measured value reaches its maximum at the midpoint of 45%RH, and thereafter the measured value gradually decreases and weakens as the humidity increases.

[0071] like Figure 4 In a constant environment with a humidity of 45%RH, for the same electric field under test, as the temperature of the test chamber is gradually increased, the effect of the electric field measurement device of the present invention on the test data becomes non-linear. From 15℃ to 31℃, the change in the test data of the electric field measurement device is relatively slow, and the measured value reaches its peak at 25℃. From 31℃ to 51℃, the test data of the electric field measurement device gradually decreases, and the downward trend is relatively accelerated.

[0072] In summary, the optimal operating environment for the electric field measuring device of the present invention is 25°C and 45%RH.

[0073] This embodiment also provides an electronic device applicable to an electric field measurement method based on electric field fusion, comprising: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the electric field measurement method based on electric field fusion as proposed in the above embodiment.

[0074] This embodiment also provides a storage medium storing a computer program that, when executed by a processor, implements an electric field measurement method based on electric field fusion as proposed in the above embodiments.

[0075] The storage medium proposed in this embodiment and the electric field measurement method based on electric field fusion proposed in the above embodiments belong to the same inventive concept. Technical details not described in detail in this embodiment can be found in the above embodiments, and this embodiment has the same beneficial effects as the above embodiments.

[0076] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An electric field measurement method based on electric field fusion, characterized in that: include, Given an electric field under three states—positive voltage, zero potential, and negative voltage—corresponding electric field data are collected, and a mathematical model of the known electric field is constructed. Based on the principle of superposition of electric fields, the known electric field and the electric field to be measured are merged to form a fused electric field, and a mathematical model of the fused electric field is constructed. Perform second-order difference operations on the mathematical model of the fused electric field to eliminate the field strength error generated by the fused electric field; The virtual electric field signal collected by the fused electric field is preprocessed and then converted into a digital signal; The processed digital signal is substituted into the fusion mathematical model for inversion calculation to optimize the true field strength value of the electric field to be measured.

2. The electric field measurement method based on electric field fusion as described in claim 1, characterized in that: The process of collecting corresponding electric field data under three known electric field states—positive voltage, zero potential, and negative voltage—and constructing a mathematical model of the known electric field includes... According to a set voltage switching sequence, a known electric field is alternately applied under three states: positive voltage, zero potential, and negative voltage. A mathematical model of the fused electric field is constructed using the fusion relationship of exponential and cosine functions to describe the variation patterns of the positive and negative voltage segments. The expression is as follows: in, , , The driving parameters are the known electric fields for positive voltage, negative voltage, and zero potential, respectively. Over time, the three-cycle electric fields switch according to an average distribution. For a period of time, The maximum value of the applied DC electric field. This is the polarization effect of the electric field strength. The polarization coefficient is... The maximum frequency of the known electric field is given.

3. The electric field measurement method based on electric field fusion as described in claim 2, characterized in that: The process of fusing the known electric field and the electric field to be measured into a fused electric field based on the principle of superposition of electric fields, and constructing a mathematical model of the fused electric field, includes the following: When collecting composite electric field data under different external loading conditions, three sets of data were acquired under positive voltage, zero potential, and negative voltage conditions. Based on the principle of electric field superposition, a fusion relationship between the electric field to be measured and the known electric field was established, and a mathematical model of the fused electric field was constructed, the expression of which is: in, The fusion coefficient is... This is the equivalent distance between the electric dipole plates. The original field strength, Let be the distance between the known electric field and the electric field to be measured. For a 180° offset angle operator, It is the equilibrium constant. , These are the calculated electric field strength values ​​for the fused electric field under positive and negative voltage conditions, respectively. Calculated electric field strength of the fused electric field at zero potential.

4. The electric field measurement method based on electric field fusion as described in claim 3, characterized in that: The process of performing second-order difference operations on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field includes... The amplitude of the merged electric field is collected and subjected to second-order difference calculation to eliminate the error in the amplitude of the merged field strength. The measured amplitude is then represented as a sequence. ,in, It is the amplitude of the first sample collected. It is the amplitude of the second one collected. It is the amplitude of the nth sample. Perform a first-order difference operation, the expression is: in, Is the number collected The amplitude of each, For the first-order difference operation in the th The calculation results at the location; Perform second-order difference operations, the expression is: in, To obtain the total number of amplitudes, For the first-order difference operation in the th The calculation results at that location For the second-order difference operation in the th order The calculation results at the location; in, This is the equilibrium constant.

5. The electric field measurement method based on electric field fusion as described in claim 4, characterized in that: The step of preprocessing the virtual electric field signal collected by the fused electric field and then converting it into a digital signal includes, The virtual electric field signal collected by the fused electric field is filtered, amplified and preprocessed to remove noise interference, and then the preprocessed analog signal is converted into a digital signal using an analog-to-digital converter.

6. The electric field measurement method based on electric field fusion as described in claim 5, characterized in that: The step of substituting the processed digital signal into the fusion mathematical model for inversion calculation to optimize the true field strength value of the electric field to be measured includes... The true electric field strength of the measured electric field is obtained by calculating and analyzing the digital signal. The expression is as follows: in, The actual electric field strength value of the electric field to be measured. For proportional transfer function, The original measured value of the electric field strength of the electric field to be measured is given. Here is the coupling coefficient for each modulation channel. For dynamically modulated field strength.

7. The electric field measurement method based on electric field fusion as described in claim 6, characterized in that: The proportional transfer function is expressed as follows: =L L= in, L For temperature and humidity calibration coefficients, Indicates the measured temperature. Indicates the measured humidity. Standard temperature This is the standard humidity.

8. An electric field measurement system based on electric field fusion, employing the electric field measurement method based on electric field fusion as described in any one of claims 1 to 7, characterized in that, include: The system includes a module for constructing a mathematical model of a known electric field, a module for constructing a mathematical model of a fused electric field, a preprocessing module, a conversion module, and a calculation output module. The module for constructing a mathematical model of a known electric field collects corresponding electric field data under three states: positive voltage, zero potential, and negative voltage, and then constructs a mathematical model of the known electric field. The module for constructing a fused electric field mathematical model is based on the principle of electric field superposition, which merges the known electric field and the electric field to be measured to form a fused electric field, and constructs a fused electric field mathematical model. The preprocessing module performs second-order difference operations on the fused electric field mathematical model to eliminate the field strength error generated by the fused electric field. The conversion module preprocesses the virtual electric field signal collected by the fused electric field and then converts it into a digital signal; The calculation module substitutes the processed digital signal into the fusion mathematical model for inversion calculation, optimizes the true field strength value of the electric field to be measured, converts the field strength value of the electric field to be measured into voltage magnitude, and outputs and displays the measurement results.

9. 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 electric field measurement method based on electric field fusion as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the electric field measurement method based on electric field fusion as described in any one of claims 1 to 7.

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