High-frequency carrier synchronization signal modulation system for grounding measurement device

Abstract

The invention discloses a high-frequency carrier synchronization signal modulation system for a grounding measurement device, which relates to the technical field of signal modulation and comprises a signal terminal, a grounding measurement device module, a carrier signal processing module, a carrier signal synchronization module and an early warning notification module. The grounding measurement device module arranges a grounding measurement device in the electric power facility and performs function debugging to obtain grounding related performance data of the current electric power facility, and the carrier signal processing module generates corresponding high-frequency carrier signals according to the grounding related performance data and classifies the high-frequency carrier signals into a plurality of signal clusters corresponding to attenuation coefficients. Signal modulation parameters of the corresponding signal clusters are matched according to the attenuation coefficients, so that each signal cluster is converted into a corresponding modulation signal cluster, carrier signal synchronization is carried out on the modulation signal clusters by a carrier signal synchronization module, and finally a corresponding early warning notification is generated by an early warning notification module according to a carrier signal synchronization result and pushed to power operation and maintenance personnel. And the electric power operation and maintenance personnel overhaul the electric power facilities.

Description

Technical Field

[0001] The invention relates to the technical field of signal modulation, in particular to a high-frequency carrier synchronous signal modulation system for a grounding measurement device. Background Art

[0002] The grounding measurement device is an instrument used to measure the grounding resistance. It plays a vital role in ensuring the safe operation of electrical equipment. The grounding resistance refers to the resistance encountered when the current flows from the grounding measurement device into the earth and then flows through the earth to another grounding body or spreads to a distant place. This resistance includes the resistance of the grounding wire and the grounding body itself, the contact resistance between the grounding body and the earth, and the resistance of the earth between the two grounding bodies.

[0003] For the grounding measurement device, after it performs measurement operations on the power facilities, it will obtain the grounding-related data of the power facilities, and it is necessary to transmit and synchronize these grounding-related data in the form of high-frequency carrier signals. Therefore, how to ensure the efficiency of transmission and synchronization of high-frequency carrier signals and minimize the impact of high-frequency carrier signal attenuation as much as possible, so as to push the data to the power maintenance personnel, and the power operation and maintenance personnel can promptly inspect the power facilities, this is a problem that needs to be solved urgently. Summary of the invention

[0004] In order to solve the above problems, an object of the present invention is to provide a high-frequency carrier synchronization signal modulation system for a ground measurement device.

[0005] The object of the present invention can be achieved by the following technical solutions: A high-frequency carrier synchronization signal modulation system for a ground measurement device, comprising a signal terminal, wherein the signal terminal is communicatively connected with a ground measurement device module, a carrier signal processing module, a carrier signal synchronization module, and an early warning notification module;

[0006] The grounding measurement device module is used to arrange a grounding measurement device in the power facility and perform functional debugging on the grounding measurement device, and the grounding measurement device after functional debugging is completed obtains grounding-related performance data corresponding to the current power facility;

[0007] The carrier signal processing module is provided with a signal generating unit, a signal classifying unit and a signal modulating unit;

[0008] The signal generating unit is used to generate a corresponding high-frequency carrier signal according to the grounding related performance data;

[0009] The signal classification unit is used to classify the high-frequency carrier signal into signal clusters corresponding to a number of attenuation coefficients;

[0010] The signal modulation unit is used to match the corresponding signal modulation parameters according to the attenuation coefficient of each signal cluster, and perform corresponding signal modulation according to the signal modulation parameters of each signal cluster, thereby generating a modulated signal cluster for each signal cluster;

[0011] The carrier signal synchronization module is used to perform carrier signal synchronization on a plurality of modulation signal clusters;

[0012] The warning notification module is used to generate a corresponding warning notification according to the result of carrier signal synchronization, and push the warning notification to the power operation and maintenance personnel, who then inspect and repair the power facilities.

[0013] Furthermore, a grounding measurement device is arranged in the power facility, and the grounding measurement device is functionally debugged. The process of obtaining grounding-related performance data corresponding to the current power facility by the grounding measurement device after functional debugging includes:

[0014] A measurement area where grounding measurement is required is selected. The measurement area includes several power facilities. The several power facilities are numbered and recorded as i, i=1, 2, 3, ..., n, where n is a natural number greater than 0. Starting from i=1, a grounding measurement device is arranged for each power facility in sequence as the number increases by 1 each time. A device debugging manual corresponding to the grounding measurement device is obtained. The device debugging manual records the correct debugging step sequence of the corresponding functional debugging of the grounding measurement device and the debugging operation corresponding to each debugging step. The grounding measurement device is functionally debugged according to the device debugging manual until the functional debugging of the grounding measurement device with i=n is completed. When the functional debugging of each grounding measurement device is completed, the grounding-related performance data corresponding to each power facility is obtained through each grounding measurement device.

[0015] Furthermore, the process of generating a corresponding high-frequency carrier signal according to the grounding-related performance data includes:

[0016] The signal generating unit is provided with a signal building area, a frequency determination area and a signal amplification area;

[0017] In the signal construction area, the grounding-related performance data of each power facility is entered in order from small to large numbers i, and the grounding-related performance data of each power facility is converted into an analog carrier signal by the analog-to-digital converter set up;

[0018] In the frequency judgment area, the signal frequency of all analog carrier signals is obtained and recorded as f, and the signal frequency corresponding to the preset high-frequency carrier signal is used as the carrier conversion frequency and recorded as fconversion; when f≥fconversion, the current analog carrier signal is identified as a high-frequency carrier signal; when f<fconversion, the current analog carrier signal is identified as a low-frequency carrier signal;

[0019] In the signal amplification area, perform the following operations:

[0020] When the analog carrier signal is identified as a high-frequency carrier signal, no operation is performed;

[0021] When the analog carrier signal is identified as a low-frequency carrier signal, a signal amplifier is selected, and a signal amplification circuit corresponding to the signal amplifier is constructed. The signal amplifier constructed by the signal amplification circuit amplifies the low-frequency carrier signal into a high-frequency carrier signal.

[0022] Furthermore, the process of classifying the high-frequency carrier signal into a number of signal clusters corresponding to attenuation coefficients includes:

[0023] The signal classification unit obtains a number of high-frequency carrier signals for data analysis, the data analysis includes time domain analysis and frequency domain analysis, the time domain attenuation characteristics of the signal corresponding to each high-frequency carrier signal are obtained through the time domain analysis, and the frequency domain attenuation characteristics of the signal corresponding to each high-frequency carrier signal are obtained through the frequency domain analysis;

[0024] Obtain the first attenuation sub-coefficient corresponding to the signal time domain attenuation feature, and record it as η1;

[0025] Obtain the second attenuation sub-coefficient corresponding to the signal frequency domain attenuation feature, and record it as η2;

[0026] The first attenuation sub-coefficient and the second attenuation sub-coefficient are weighted to obtain the attenuation coefficient corresponding to each high-frequency carrier signal. The attenuation coefficient is denoted as SJ, then SJ=η1×k+η2×(1-k), where 0<k<1. The high-frequency carrier signals with the same attenuation coefficient are integrated to classify signal clusters corresponding to several attenuation coefficients.

[0027] Furthermore, the process of matching corresponding signal modulation parameters according to the attenuation coefficient of each signal cluster, performing corresponding signal modulation according to the signal modulation parameters of each signal cluster, and then generating a modulated signal cluster of each signal cluster includes:

[0028] A signal parameter comparison set is preset to record signal modulation parameters corresponding to different comparison coefficients, a matching program is set to match the signal modulation parameters corresponding to each signal cluster, and the signal modulation unit enters the signal parameter comparison set and each signal cluster into the matching program;

[0029] Start the matching program, and let the matching program traverse and compare the attenuation coefficient corresponding to each signal cluster with the comparison coefficient of the signal modulation parameter corresponding to the signal parameter comparison set in turn, and then obtain the matching difference corresponding to each signal cluster, and record the matching difference as τ, τ = |SJ-DZ|, DZ is the comparison coefficient, set the matching achievement threshold, and record it as τ`, and use the signal modulation parameter corresponding to the comparison coefficient of τ≤τ` as the signal modulation parameter of the signal cluster corresponding to the current attenuation coefficient. When τ>τ`, there is no corresponding signal modulation parameter of the current signal cluster in the signal parameter comparison set, and no operation is performed;

[0030] The signal cluster corresponding to each attenuation coefficient performs signal modulation according to the signal modulation parameters matched to each other, thereby generating the corresponding modulated signal clusters. The signal modulation is performed by an analog digital modulator, which includes an amplitude modulator, a frequency modulator and a phase modulator; the signal adjustment parameters include the expected signal amplitude, the expected signal frequency and the expected signal phase; the amplitude modulator, the frequency modulator and the phase modulator are respectively used to adjust the signal amplitude, signal frequency and signal phase of the signal cluster to the corresponding expected signal amplitude, expected signal frequency and expected signal phase.

[0031] Furthermore, the process of performing carrier signal synchronization on a plurality of modulation signal clusters includes:

[0032] The carrier signal synchronization module acquires several modulation signal clusters and sets a signal synchronization period. During the signal synchronization period, several concurrent synchronization thread tasks are set, and each synchronization thread task captures a modulation signal cluster for carrier signal synchronization. The carrier signal synchronization is performed according to a preset synchronization frequency, synchronization rule and synchronization protocol.

[0033] Obtain the signal synchronization completion rate of each modulated signal cluster after carrier signal synchronization, and record it as TB, set the synchronization completion value, and record it as C, compare the relationship between the corresponding signal synchronization completion rate and the synchronization completion value of each modulated signal cluster after carrier signal synchronization, and then generate different results of carrier signal synchronization.

[0034] Furthermore, different results of the carrier signal synchronization include:

[0035] The different results of the carrier signal synchronization include result one and result two;

[0036] When TB≥C, the corresponding result is 1: indicating that the carrier signal synchronization of the signal cluster corresponding to the current signal synchronization completion rate is in a "successful state";

[0037] When TB<C, the corresponding result is 2: it indicates that the carrier signal synchronization of the signal cluster corresponding to the current signal synchronization completion rate is in a "failed state".

[0038] Furthermore, a corresponding warning notification is generated according to the result of carrier signal synchronization, and the warning notification is pushed to the power operation and maintenance personnel. The process of the power operation and maintenance personnel inspecting the power facilities includes:

[0039] The warning notification includes synchronous operation warning and device failure warning;

[0040] When the result of carrier signal synchronization is result one, the corresponding modulation signal cluster is successfully received, and the modulation signal cluster is input into the set fault library, which is used to store different fault problems corresponding to power facilities and corresponding fault solutions. After the modulation signal cluster is input into the fault library, the fault library determines whether there is a fault problem in the power facility measured by the grounding measurement device corresponding to the current modulation signal cluster;

[0041] If so, the fault database further matches the fault solution of the current power facility corresponding to the fault problem, and generates the corresponding device fault warning, and pushes the device fault warning and fault solution to the power operation and maintenance personnel, thereby reminding the power operation and maintenance personnel that the corresponding power facility has a fault problem, and repairs the power facility with the fault problem according to the fault solution;

[0042] If not, no action is taken;

[0043] When the result of the carrier signal synchronization is result 2, a synchronization operation warning is generated, and the carrier signal synchronization of the current signal cluster is performed again.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a grounding measurement device in the power facility to obtain the grounding-related performance data corresponding to the power facility, a high-frequency carrier signal is generated according to the grounding-related performance data, and the high-frequency carrier signal is classified into a number of signal clusters corresponding to attenuation coefficients, and the signal modulation is performed for each signal cluster according to its attenuation coefficient by matching the corresponding signal modulation parameters, thereby achieving efficient transmission of the high-frequency carrier signal to a certain extent, and minimizing the impact of the attenuation of the high-frequency carrier signal as much as possible; after completing the signal modulation of the signal cluster, a modulated signal cluster corresponding to each signal cluster is generated, and carrier signal synchronization is performed on several modulated signal clusters, and a corresponding early warning notification is generated according to the result of the carrier signal synchronization and pushed to the power operation and maintenance personnel, who then inspect and repair the power facilities, thereby effectively improving the efficiency of signal synchronization and achieving timely discovery and repair of power facility faults. DETAILED DESCRIPTION

[0045] A high-frequency carrier synchronization signal modulation system for a grounding measurement device comprises a signal terminal, wherein the signal terminal is communicatively connected with a grounding measurement device module, a carrier signal processing module, a carrier signal synchronization module and an early warning notification module.

[0046] The grounding measurement device module is used to arrange the grounding measurement device in the power facility and perform functional debugging on the grounding measurement device. After the functional debugging is completed, the grounding measurement device obtains the grounding-related performance data corresponding to the current power facility.

[0047] The carrier signal processing module is provided with a signal generating unit, a signal classification unit and a signal modulation unit. The signal generating unit is used to generate a corresponding high-frequency carrier signal according to the grounding-related performance data.

[0048] The signal classification unit is used to classify the high-frequency carrier signal into a number of signal clusters corresponding to the attenuation coefficients. The signal modulation unit is used to match the corresponding signal modulation parameters according to the attenuation coefficient of each signal cluster, and perform corresponding signal modulation according to the signal modulation parameters of each signal cluster, thereby generating a modulated signal cluster for each signal cluster.

[0049] The carrier signal synchronization module is used to synchronize the carrier signals of several modulation signal clusters; the early warning notification module is used to generate corresponding early warning notifications according to the results of the carrier signal synchronization, and push the early warning notifications to the power operation and maintenance personnel, who will then inspect and repair the power facilities.

[0050] It should be further explained that, in a specific implementation process, the grounding measurement device module arranges a grounding measurement device in the power facility and performs functional debugging on the grounding measurement device. The process of obtaining grounding-related performance data corresponding to the current power facility by the grounding measurement device after the functional debugging is completed includes:

[0051] Select a measurement area where grounding measurement is required, wherein the measurement area includes a plurality of power facilities, and the plurality of power facilities are numbered and the number is recorded as i, i=1, 2, 3, ..., n, wherein n is a natural number greater than 0;

[0052] The number is a unique identification mark for each power facility. When an abnormality occurs in a power facility, the number of the power facility is used to quickly locate the power facility;

[0053] Starting from i=1, arrange a grounding measurement device for each power facility in sequence according to the number incremented by 1 each time, obtain the device debugging manual corresponding to the grounding measurement device, the device debugging manual records the correct debugging step sequence of the corresponding function debugging of the grounding measurement device and the debugging operation corresponding to each debugging step, and perform functional debugging of the grounding measurement device according to the device debugging manual until the functional debugging of the grounding measurement device i=n is completed;

[0054] After the functional debugging of each grounding measurement device is completed, the grounding related performance data corresponding to each power facility is obtained through the respective grounding measurement devices, and the grounding related performance data includes grounding resistance, grounding impedance and grounding path status.

[0055] It should be further explained that, in a specific implementation process, the process of the signal generating unit generating a corresponding high-frequency carrier signal according to the grounding-related performance data includes:

[0056] The signal generating unit is provided with a signal building area, a frequency determination area and a signal amplification area;

[0057] In the signal construction area, the grounding-related performance data of each power facility obtained by the grounding measurement device is entered in sequence according to the number i from small to large, and an analog-to-digital converter is set to convert the grounding-related performance data of each power facility into a corresponding analog carrier signal;

[0058] In the frequency determination area, the signal frequencies corresponding to all analog carrier signals are obtained, and the signal frequencies are recorded as f, the signal frequencies corresponding to the preset high-frequency carrier signals are recorded as the carrier conversion frequency, and the carrier conversion frequency is recorded as fconversion;

[0059] When f ≥ f conversion, the current analog carrier signal is identified as a high-frequency carrier signal;

[0060] When f<f conversion, the current analog carrier signal is identified as a low-frequency carrier signal;

[0061] In the signal amplification area, perform the following operations:

[0062] When the analog carrier signal is identified as a high-frequency carrier signal, no operation is performed;

[0063] When the analog carrier signal is identified as a low-frequency carrier signal, a signal amplifier is selected, and a signal amplification circuit corresponding to the signal amplifier is constructed, wherein the signal amplification circuit is adaptively constructed according to the low-frequency carrier signal, and it is determined whether the signal gain, signal bandwidth, signal noise, and input and output impedance of the signal amplification circuit are within respective preset expected value ranges;

[0064] If so, the signal amplification circuit corresponding to the current signal amplifier is built, and the signal amplifier amplifies the low-frequency carrier signal into a high-frequency carrier signal;

[0065] If not, continue to adjust the signal gain, signal bandwidth, signal noise, and input and output impedance of the amplifier circuit until each meets the corresponding expected value range, and amplify the low-frequency carrier signal into a high-frequency carrier signal through the signal amplifier constructed by the signal amplification circuit.

[0066] It should be noted that the adaptive construction is based on the signal characteristics of each low-frequency carrier signal, and the operator builds the signal amplification circuit corresponding to different low-frequency carrier signals according to historical circuit construction experience and standardized processing methods.

[0067] It should be further explained that, in a specific implementation process, the process in which the signal classification unit classifies the high-frequency carrier signal into a number of signal clusters corresponding to attenuation coefficients includes:

[0068] The signal classification unit obtains a plurality of high-frequency carrier signals and performs data analysis on the plurality of high-frequency carrier signals, wherein the data analysis includes time domain analysis and frequency domain analysis, wherein the signal time domain attenuation characteristics corresponding to each high-frequency carrier signal are obtained through time domain analysis, and the signal frequency domain attenuation characteristics corresponding to each high-frequency carrier signal are obtained through frequency domain analysis;

[0069] The signal time domain attenuation feature is used to reflect the attenuation change of the current high-frequency carrier signal in time; the signal frequency domain attenuation feature is used to reflect the attenuation change of the current high-frequency carrier signal in the frequency domain;

[0070] Obtaining a first attenuation sub-coefficient corresponding to a time-domain attenuation feature of a signal, wherein the first attenuation sub-coefficient is an attenuation rate, and the first attenuation sub-coefficient is recorded as η1, and the attenuation rate is an attenuation decibel of a high-frequency carrier signal per unit time;

[0071] Obtain a second attenuation sub-coefficient corresponding to the signal frequency domain attenuation feature, where the second attenuation sub-coefficient is a weighted average of an in-band attenuation value, an out-of-band attenuation value, and an attenuation slope, and the second attenuation sub-coefficient is recorded as η2, where the in-band attenuation value is the attenuation decibel of the high-frequency carrier signal within a specific frequency range, the out-of-band attenuation value is the attenuation decibel of the high-frequency carrier signal within a non-specific area, and the attenuation slope is the attenuation speed of the high-frequency carrier signal in the frequency domain;

[0072] The in-band attenuation value, the out-band attenuation value and the attenuation slope are denoted as α, β and γ respectively, and a corresponding weight number is assigned to each of them, and the weight numbers assigned to the in-band attenuation value, the out-band attenuation value and the attenuation slope are denoted as Q1, Q2 and Q3 respectively;

[0073] Then for the second attenuator coefficient η2:

[0074] The first attenuation sub-coefficient and the second attenuation sub-coefficient are weighted to obtain the attenuation coefficient corresponding to each high-frequency carrier signal, and the attenuation coefficient is recorded as SJ, then SJ = η1×k+η2×(1-k), where 0<k<1;

[0075] The high-frequency carrier signals with the same attenuation coefficient are integrated, and then several signal clusters corresponding to the attenuation coefficients are classified.

[0076] It should be further explained that, in a specific implementation process, the signal modulation unit matches the corresponding signal modulation parameters according to the attenuation coefficient of each signal cluster, and performs corresponding signal modulation according to the signal modulation parameters of each signal cluster, and then generates a modulated signal cluster for each signal cluster. The process includes:

[0077] Preset a signal parameter comparison set, the signal parameter comparison set records signal modulation parameters corresponding to different comparison coefficients, and set a matching program, the matching program is used to match the signal modulation parameters corresponding to each signal cluster;

[0078] The signal modulation unit enters the signal parameter comparison set into the matching program, enters each signal cluster into the matching program, starts the matching program, and the matching program traverses and compares the attenuation coefficient corresponding to each signal cluster with the comparison coefficient of the signal modulation parameter corresponding to the signal parameter comparison set in turn, and then obtains the matching difference value corresponding to each signal cluster through traversal comparison, and the matching difference value is recorded as τ;

[0079] Wherein, τ = |SJ-DZ|, DZ is the comparison coefficient, and the matching difference is used to measure the degree of deviation between the attenuation coefficient of each signal cluster and the comparison coefficient in the signal parameter comparison set. The smaller the matching difference is, the more compatible the signal modulation parameter corresponding to the current comparison coefficient is with the current signal cluster. The matching difference has a numerical upper limit. When the matching difference exceeds the numerical upper limit, it indicates that there is no signal modulation parameter matching the current signal cluster.

[0080] Set the matching threshold corresponding to the matching program, and record the matching threshold as τ`;

[0081] The signal modulation parameter corresponding to the comparison coefficient of τ≤τ` is used as the signal modulation parameter of the signal cluster corresponding to the current attenuation coefficient. When τ>τ`, the current signal cluster does not have the corresponding signal modulation parameter in the signal parameter comparison set, and no operation is performed;

[0082] The signal cluster corresponding to each attenuation coefficient performs signal modulation according to the signal modulation parameters matched to each cluster, thereby generating the corresponding modulated signal clusters, wherein the signal modulation is performed by an analog digital modulator, and the analog digital modulator includes an amplitude modulator, a frequency modulator and a phase modulator;

[0083] The signal adjustment parameters include expected signal amplitude, expected signal frequency and expected signal phase;

[0084] The amplitude modulator is used to adjust the signal amplitude of the signal cluster, thereby adjusting the signal amplitude of the current signal cluster to the expected signal amplitude;

[0085] The frequency modulator is used to adjust the signal frequency of the signal cluster, thereby adjusting the signal frequency of the current signal cluster to the desired signal frequency;

[0086] The phase modulator is used to adjust the signal phase of the signal cluster, thereby adjusting the signal phase of the current signal cluster to the expected signal phase.

[0087] It should be further explained that, in a specific implementation process, the process of the carrier signal synchronization module performing carrier signal synchronization on a plurality of modulation signal clusters includes:

[0088] The carrier signal synchronization module obtains a plurality of modulation signal clusters and sets a signal synchronization period, and the signal synchronization period is recorded as T synchronization, then T synchronization = [t1, t2], wherein t1 is the start time of the signal synchronization period, and t2 is the end time of the signal synchronization period;

[0089] During the signal synchronization period, a number of concurrent synchronization thread tasks are set, and each synchronization thread task captures a modulation signal cluster to perform carrier signal synchronization, and the carrier signal synchronization is performed according to a preset synchronization frequency, synchronization rule and synchronization protocol;

[0090] Obtain the signal synchronization completion rate of each modulation signal cluster after carrier signal synchronization, and record the signal synchronization completion rate as TB, set the synchronization completion value, and record the synchronization completion value as C, compare the size relationship between the corresponding signal synchronization completion rate and the synchronization completion value of each modulation signal cluster after carrier signal synchronization, and then generate different results of carrier signal synchronization;

[0091] The results include result one and result two;

[0092] When TB≥C, the corresponding result is 1: indicating that the carrier signal synchronization of the signal cluster corresponding to the current signal synchronization completion rate is in a "successful state";

[0093] When TB<C, the corresponding result is 2: it indicates that the carrier signal synchronization of the signal cluster corresponding to the current signal synchronization completion rate is in a "failed state".

[0094] It should be further explained that, in the specific implementation process, the warning notification module generates a corresponding warning notification according to the result of carrier signal synchronization, and pushes the warning notification to the power operation and maintenance personnel. The process of the power operation and maintenance personnel inspecting the power facilities includes:

[0095] The warning notification includes synchronous operation warning and device failure warning;

[0096] When the result of carrier signal synchronization is result one, the corresponding modulation signal cluster is successfully received, and the modulation signal cluster is input into a set fault library, which is used to store different fault problems corresponding to power facilities and corresponding fault solutions. After the modulation signal cluster is input into the fault library, the fault library determines whether there is a fault problem in the power facility measured by the grounding measurement device corresponding to the current modulation signal cluster;

[0097] If so, the fault database further matches the fault solution of the current power facility corresponding to the fault problem, and generates the corresponding device fault warning, and pushes the device fault warning and fault solution to the power operation and maintenance personnel, thereby reminding the power operation and maintenance personnel that the corresponding power facility has a fault problem, and repairs the power facility with the fault problem according to the fault solution to achieve fault elimination of the power facility;

[0098] If not, no action is taken;

[0099] When the result of the carrier signal synchronization is result 2, a synchronization operation warning is generated, and the carrier signal synchronization of the current signal cluster is performed again.

[0100] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A high-frequency carrier synchronization signal modulation system for a ground measurement device, comprising a signal terminal, characterized in that: The signal terminal is communicatively connected to a ground measurement device module, a carrier signal processing module, a carrier signal synchronization module and an early warning notification module; The grounding measurement device module is used to arrange a grounding measurement device in the power facility and perform functional debugging on the grounding measurement device, and the grounding measurement device after functional debugging is completed obtains grounding-related performance data corresponding to the current power facility; The carrier signal processing module is provided with a signal generating unit, a signal classifying unit and a signal modulating unit; The signal generating unit is used to generate a corresponding high-frequency carrier signal according to the grounding related performance data; The signal classification unit is used to classify the high-frequency carrier signal into signal clusters corresponding to a number of attenuation coefficients; The signal modulation unit is used to match the corresponding signal modulation parameters according to the attenuation coefficient of each signal cluster, and perform corresponding signal modulation according to the signal modulation parameters of each signal cluster, thereby generating a modulated signal cluster for each signal cluster; The carrier signal synchronization module is used to perform carrier signal synchronization on a plurality of modulation signal clusters; The warning notification module is used to generate a corresponding warning notification according to the result of carrier signal synchronization, and push the warning notification to the power operation and maintenance personnel, who then inspect and repair the power facilities.

2. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 1, characterized in that: The process of arranging a grounding measurement device in the power facility, performing functional debugging on the grounding measurement device, and obtaining grounding-related performance data corresponding to the current power facility from the grounding measurement device after functional debugging includes: A measurement area where grounding measurement is required is selected. The measurement area includes several power facilities. The several power facilities are numbered and recorded as i, i=1, 2, 3, ..., n, where n is a natural number greater than 0. Starting from i=1, a grounding measurement device is arranged for each power facility in sequence as the number increases by 1 each time. A device debugging manual corresponding to the grounding measurement device is obtained. The device debugging manual records the correct debugging step sequence of the corresponding functional debugging of the grounding measurement device and the debugging operation corresponding to each debugging step. The grounding measurement device is functionally debugged according to the device debugging manual until the functional debugging of the grounding measurement device with i=n is completed. When the functional debugging of each grounding measurement device is completed, the grounding-related performance data corresponding to each power facility is obtained through each grounding measurement device.

3. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 2, characterized in that: The process of generating a corresponding high-frequency carrier signal based on ground-related performance data includes: The signal generating unit is provided with a signal building area, a frequency determination area and a signal amplification area; In the signal construction area, the grounding-related performance data of each power facility is entered in order from small to large numbers i, and the grounding-related performance data of each power facility is converted into an analog carrier signal by the analog-to-digital converter set up; In the frequency judgment area, the signal frequency of all analog carrier signals is obtained and recorded as f, and the signal frequency corresponding to the preset high-frequency carrier signal is used as the carrier conversion frequency and recorded as f 转换 ; When f ≥ f 转换 When f<f 转换 , the current analog carrier signal is identified as a low-frequency carrier signal; In the signal amplification area, perform the following operations: When the analog carrier signal is identified as a high-frequency carrier signal, no operation is performed; When the analog carrier signal is identified as a low-frequency carrier signal, a signal amplifier is selected, and a signal amplification circuit corresponding to the signal amplifier is constructed. The signal amplifier constructed by the signal amplification circuit amplifies the low-frequency carrier signal into a high-frequency carrier signal.

4. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 3, characterized in that: The process of classifying the high-frequency carrier signal into a number of signal clusters corresponding to the attenuation coefficients includes: The signal classification unit obtains a number of high-frequency carrier signals for data analysis, the data analysis includes time domain analysis and frequency domain analysis, the time domain attenuation characteristics of the signal corresponding to each high-frequency carrier signal are obtained through the time domain analysis, and the frequency domain attenuation characteristics of the signal corresponding to each high-frequency carrier signal are obtained through the frequency domain analysis; Obtain the first attenuation sub-coefficient corresponding to the signal time domain attenuation feature, and record it as η1; Obtain the second attenuation sub-coefficient corresponding to the signal frequency domain attenuation feature, and record it as η2; The first attenuation sub-coefficient and the second attenuation sub-coefficient are weighted to obtain the attenuation coefficient corresponding to each high-frequency carrier signal. The attenuation coefficient is denoted as SJ, then SJ=η1×k+η2×(1-k), where 0<k<1. The high-frequency carrier signals with the same attenuation coefficient are integrated to classify signal clusters corresponding to several attenuation coefficients.

5. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 4, characterized in that: The process of matching corresponding signal modulation parameters according to the attenuation coefficient of each signal cluster, performing corresponding signal modulation according to the signal modulation parameters of each signal cluster, and then generating a modulated signal cluster of each signal cluster includes: A signal parameter comparison set is preset to record signal modulation parameters corresponding to different comparison coefficients, a matching program is set to match the signal modulation parameters corresponding to each signal cluster, and the signal modulation unit enters the signal parameter comparison set and each signal cluster into the matching program; Start the matching program, and let the matching program traverse and compare the attenuation coefficient corresponding to each signal cluster with the comparison coefficient of the signal modulation parameter corresponding to the signal parameter comparison set in turn, and then obtain the matching difference corresponding to each signal cluster, and record the matching difference as τ, τ = |SJ-DZ|, DZ is the comparison coefficient, set the matching achievement threshold, and record it as τ`, and use the signal modulation parameter corresponding to the comparison coefficient of τ≤τ` as the signal modulation parameter of the signal cluster corresponding to the current attenuation coefficient. When τ>τ`, there is no corresponding signal modulation parameter of the current signal cluster in the signal parameter comparison set, and no operation is performed; The signal cluster corresponding to each attenuation coefficient performs signal modulation according to the signal modulation parameters matched to each other, thereby generating the corresponding modulated signal clusters. The signal modulation is performed by an analog digital modulator, which includes an amplitude modulator, a frequency modulator and a phase modulator; the signal adjustment parameters include the expected signal amplitude, the expected signal frequency and the expected signal phase; the amplitude modulator, the frequency modulator and the phase modulator are respectively used to adjust the signal amplitude, signal frequency and signal phase of the signal cluster to the corresponding expected signal amplitude, expected signal frequency and expected signal phase.

6. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 5, characterized in that: The process of synchronizing the carrier signals of several modulation signal clusters includes: The carrier signal synchronization module acquires several modulation signal clusters and sets a signal synchronization period. During the signal synchronization period, several concurrent synchronization thread tasks are set, and each synchronization thread task captures a modulation signal cluster for carrier signal synchronization. The carrier signal synchronization is performed according to a preset synchronization frequency, synchronization rule and synchronization protocol. Obtain the signal synchronization completion rate of each modulated signal cluster after carrier signal synchronization, and record it as TB, set the synchronization completion value, and record it as C, compare the relationship between the corresponding signal synchronization completion rate and the synchronization completion value of each modulated signal cluster after carrier signal synchronization, and then generate different results of carrier signal synchronization.

7. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 6, characterized in that: Different results of the carrier signal synchronization include: The different results of the carrier signal synchronization include result one and result two; When TB≥C, the corresponding result is 1: indicating that the carrier signal synchronization of the signal cluster corresponding to the current signal synchronization completion rate is in a "successful state"; When TB<C, the corresponding result is 2: it indicates that the carrier signal synchronization of the signal cluster corresponding to the current signal synchronization completion rate is in a "failed state".

8. The high-frequency carrier synchronization signal modulation system for a ground measurement device according to claim 7, characterized in that: The corresponding warning notification is generated according to the result of carrier signal synchronization, and the warning notification is pushed to the power operation and maintenance personnel. The process of the power operation and maintenance personnel inspecting the power facilities includes: The warning notification includes synchronous operation warning and device failure warning; When the result of carrier signal synchronization is result one, the corresponding modulation signal cluster is successfully received, and the modulation signal cluster is input into the set fault library, which is used to store different fault problems corresponding to power facilities and corresponding fault solutions. After the modulation signal cluster is input into the fault library, the fault library determines whether there is a fault problem in the power facility measured by the grounding measurement device corresponding to the current modulation signal cluster; If so, the fault database further matches the fault solution of the current power facility corresponding to the fault problem, and generates the corresponding device fault warning, and pushes the device fault warning and fault solution to the power operation and maintenance personnel, thereby reminding the power operation and maintenance personnel that the corresponding power facility has a fault problem, and repairs the power facility with the fault problem according to the fault solution; If not, no action is taken; When the result of the carrier signal synchronization is result 2, a synchronization operation warning is generated, and the carrier signal synchronization of the current signal cluster is performed again.