Intelligent expansion joint regulation and control system and method based on GIL multi-dimensional perception

Abstract

The invention discloses an expansion joint intelligent regulation and control system and method based on GIL multi-dimensional perception, and relates to the technical field of power transmission equipment control. Expansion joint operation data records are called from a historical operation and maintenance database of a power transmission system, target data are screened out, and a target working condition data set of the target data is obtained; then calculating the average change frequency and deviation ratio of different expansion joints to obtain a service life influence factor, and setting the first target expansion joint with the service life influence factor higher than a threshold value as a second target expansion joint; predicting the remaining service life of a second target expansion joint, and intelligently regulating and controlling the power transmission path based on the remaining service life to obtain a target transmission path; the corresponding regulation and control system comprises a data acquisition module, an analysis and calculation module, a residual life prediction module and a path regulation and control module, and all the modules work cooperatively to realize the process of the method. Through deep analysis and utilization of the operation data of the expansion joint, the residual life of the expansion joint is accurately predicted, and the power transmission path is intelligently regulated and controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission equipment control, and in particular to an intelligent control system and method for expansion joints based on GIL multi-dimensional perception. Background Art

[0002] In power transmission systems, expansion joints, as key connecting and compensating components, play an irreplaceable role in ensuring stable power transmission. During power transmission, the heat generated by current flowing through conductors, combined with ambient temperature fluctuations, causes transmission lines to expand and contract. Furthermore, external factors such as wind, vibrations from equipment operation, and displacement caused by crustal movement can also affect power transmission lines. Expansion joints, through their inherent elasticity and flexibility, effectively mitigate these changes, preventing damage to the lines due to stress concentration, thereby ensuring the safe and stable operation of the power system.

[0003] However, the service life of expansion joints is affected by a variety of factors, including but not limited to their material properties, structural design, operating environment conditions, and the workload they withstand. Traditional prediction methods are often based on brief test data. Because they struggle to fully simulate the actual operating environment and test time is not equivalent to actual operating time, they cannot accurately reflect the combined impact of various complex factors on the life of the expansion joint. As a result, in practical applications, traditional prediction methods have low accuracy in predicting the service life of expansion joints and cannot meet the high requirements of power systems for safe and stable operation. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent control system and method for telescopic joints based on GIL multi-dimensional perception to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent control method for telescopic joints based on GIL multi-dimensional perception, the intelligent control method comprising:

[0006] Step S100: Retrieving telescopic joint operation data records; screening the telescopic joint operation data records, extracting target data, setting the telescopic joint corresponding to the target data as a first target telescopic joint; and obtaining a target operating condition data group for the first target telescopic joint based on the target data;

[0007] Step S200: Analyzing target data based on the target operating condition data group of the first target telescopic joint, and calculating the average change frequency of the first target telescopic joint;

[0008] Step S300: analyzing the target operating condition data group of the first target telescopic joint to obtain the deflection ratio of the first target telescopic joint;

[0009] Step S400: Calculating the lifespan influencing factor of each first target telescopic joint based on the average change frequency and deflection ratio of the first target telescopic joint; integrating and analyzing the lifespan influencing factors corresponding to all first target telescopic joints to obtain a second target telescopic joint;

[0010] Step S500: Predicting the remaining service life of each of the second target expansion joints;

[0011] Step S600: Based on the prediction result, the power transmission path in the power transmission system is intelligently regulated to obtain a target transmission path.

[0012] Furthermore, step S100 includes:

[0013] Step S101: Sensors regularly monitor the operating status of the expansion joint and generate operating data records; the sensors include temperature sensors, humidity sensors, stress sensors, and displacement sensors;

[0014] Step S102: In each expansion joint operation data record, extract the temperature data x monitored by the temperature sensor, the humidity data y monitored by the humidity sensor, and the pressure data z monitored by the stress sensor to form a data tuple group[x,y,z]; if any data in the data tuple group is higher than the corresponding set data threshold, set the data in the data tuple group as the target data Data i j , the target data Data i j The corresponding expansion joint is the first target expansion joint; Data i j represents the jth target data of the i-th first target expansion joint;

[0015] Step S103: extract the expansion and contraction amount L monitored by the displacement sensor in the operation data record corresponding to the first target expansion joint i j Among them, L i j Indicates the expansion amount corresponding to the jth target data of the i-th first target expansion joint;

[0016] Step S104: Integrate the target data corresponding to all first target telescopic joints and the telescopic amounts corresponding to the target data to obtain the target working condition data group Tag (Data i j ,L i j );

[0017] In the above steps, "sensors" include but are not limited to temperature sensors, humidity sensors, stress sensors, etc. These sensors can accurately monitor various data of the expansion joint during operation; "data threshold" is a pre-set standard value, which is the basis for judging whether the data is abnormal or has analytical value; when the data is higher than this threshold, it means that there may be special circumstances in the operating status of the expansion joint at that moment, so this part of the data is set as the target data, and the corresponding expansion joint is set as the first target expansion joint; "expansion amount" refers to the corresponding expansion or contraction length of the expansion joint under the target data environment.

[0018] Furthermore, step S200 includes:

[0019] Step S201: extract the target working condition data group Tag of the first target telescopic joint, divide the same telescopic amount into target telescopic amounts, extract all target data corresponding to the target telescopic amount, and form a target data sequence D = {Data i 1 ,Data i 2 ,...,Data i j , ...};

[0020] Step S202: sort the target data in the target data sequence D according to a time series, compare two adjacent target data, and if the two adjacent target data are different, accumulate the number of changes of the first target telescopic section; obtain the total number of changes of the first target telescopic section corresponding to the target telescopic amount, and record the time interval corresponding to each change of the first target telescopic section corresponding to the target telescopic amount, and obtain the total time interval corresponding to the changes of the first target telescopic section corresponding to the target telescopic amount;

[0021] Step S203: Calculate the average change frequency of the first target telescopic joint;

[0022]

[0023] Where F represents the average change frequency of the first target telescopic joint; K j Represents the total number of changes corresponding to the j-th target expansion amount; ω j The weight factor corresponding to the total number of changes; t j represents the total time interval corresponding to the change of the first target expansion joint corresponding to the jth target expansion amount; N represents the number of target expansion amounts;

[0024] The above steps are intended to centrally analyze the target data corresponding to the target expansion amount. For example, the target data generated when the expansion or contraction amount of the expansion joint is the same are grouped together to form a target data sequence D. This allows for a more targeted analysis of the change pattern of the expansion joint data corresponding to the expansion amount. The average change frequency F is used to quantify the speed of data change corresponding to different expansion amounts of the expansion joint.

[0025] Furthermore, step S300 includes:

[0026] Step S301: extract all the expansion and contraction amounts of the first target expansion and contraction joint from the target working condition data group Tag of the first target expansion and contraction joint, number the expansion and contraction amounts according to the time series, and obtain the expansion and contraction amount sequence C of the first target expansion and contraction joint = {C i 1 ,C i 2 ,...,C i j ,...};

[0027] Step S302: Calculate the expansion difference ΔC=C i j+1 -C i j Among them, C i j+1 and C i j , respectively represent the j+1th and jth expansion amounts of the i-th first target expansion joint;

[0028] Step S303: If the expansion difference ΔC>0, it is determined that the first target expansion joint has a positive change, and the number of positive changes of the first target expansion joint P is accumulated. f If the telescopic difference ΔC <0, it is determined that the first target telescopic section has reversed, and the cumulative number of reverse changes of the first target telescopic section P b ;;

[0029] Step S304: Calculate the deflection ratio of the first target telescopic joint. The calculation formula of the deflection ratio is as follows:

[0030]

[0031] Wherein, P represents the deflection ratio of the first target telescopic joint;

[0032] In the above steps, the expansion difference ΔC is used to reflect the direction and degree of expansion and contraction changes of the expansion joint at two adjacent moments; the deflection ratio is used to describe the tendency of the expansion joint's operating state in terms of positive and negative changes, and to assist in judging the operating trend and stability of the expansion joint.

[0033] Furthermore, step S400 includes:

[0034] Step S401: Calculate the life impact factor of the first target telescopic joint. The calculation formula of the life impact factor is as follows:

[0035] LIF=ω F F+ω P P;

[0036] Wherein, LIF represents the life influencing factor of the first target telescopic joint; F represents the average change frequency of the first target telescopic joint; ω F represents the weight factor corresponding to the average change frequency; P represents the deflection ratio of the first target telescopic joint; ω P represents the weight factor corresponding to the bias ratio;

[0037] Step S402: integrating the life impact factors of all first target telescopic joints; if the life impact factor is greater than a preset life impact factor threshold, setting the first target telescopic joint corresponding to the life impact factor as the second target telescopic joint;

[0038] In the above steps, the preset life impact factor threshold is a judgment standard, which is determined based on experience, experimental data or industry standards. When the life impact factor of a first target expansion joint is greater than this threshold, it means that the life of the expansion joint is greatly affected and there is a high potential risk. Therefore, it will be marked as the second target expansion joint to facilitate more in-depth analysis and processing of these key expansion joints in the future.

[0039] Furthermore, step S500 includes:

[0040] Step S501: retrieving the initial service life of all second target expansion joints from the historical operation and maintenance database of the power transmission system, and calculating the total operating time of each second target expansion joint;

[0041] Step S502: Calculating the remaining service life of each second target expansion joint;

[0042]

[0043] Among them, T R represents the remaining service life of the second target expansion joint; T t represents the initial service life of the second target expansion joint; T u represents the total operating time of the second target telescopic joint; LIF represents the life impact factor of the second target telescopic joint; α represents the adjustment coefficient corresponding to the life impact factor;

[0044] In the above steps, the initial service life is the theoretical length of time that the expansion joint can work normally in a brand new state, which is usually provided by the manufacturer or determined based on industry standards and past experience; the total operating time records the cumulative operating time of the expansion joint from the time it was put into use to the current moment; the adjustment coefficient α is a parameter set according to actual conditions, which is used to further optimize the impact of the life influencing factor on the calculation of the remaining service life; since different operating environments and working conditions have different effects on the life of the expansion joint, the adjustment coefficient α can make the calculation result more in line with the actual situation.

[0045] Furthermore, step S600 includes:

[0046] Step S601: comprehensively sorting out all transmission paths in the power transmission system and counting the number of second target expansion joints in each transmission path;

[0047] Step S602: If the number of second target telescopic joints in the transmission path is 0, the transmission path is used as the target transmission path;

[0048] Step S603: If the number of the second target telescopic joints in the transmission path is not 0, the average remaining service life of the second target telescopic joints in the transmission path is calculated:

[0049]

[0050] in, represents the average remaining service life of the second target telescopic joint in the transmission path; represents the remaining service life of the i-th second target expansion joint in the transmission path; ω i represents the weight factor corresponding to the remaining service life of the i-th second target expansion joint; m represents the number of second target expansion joints in the transmission path;

[0051] Step S604: comparing the average remaining service life of the second target telescopic joints in all transmission paths, and selecting the transmission path with the longest average remaining service life as the target transmission path;

[0052] In the above steps, the average remaining service life of the second target expansion joints in all transmission paths is compared, and the path with the longest average remaining service life is selected as the target transmission path; the purpose of this is to give priority to transmission paths that are less affected by the life of the expansion joints and have more stable and reliable operation, so as to ensure the continuity and stability of power transmission, reduce the risk of transmission failures due to premature damage of the expansion joints, and ensure the efficient operation of the power system.

[0053] Furthermore, in order to better implement the above method, an intelligent control system for telescopic joints based on GIL multi-dimensional perception is provided. The intelligent control system includes a data acquisition module, an analysis and calculation module, a remaining life prediction module, and a path control module.

[0054] The data acquisition module is responsible for collecting, filtering and integrating the operation data records of the expansion joints monitored by the sensors from the historical operation and maintenance database of the power transmission system, and setting the first target expansion joint;

[0055] an analysis and calculation module, configured to calculate an average change frequency and a deflection ratio of the first target telescopic joint, and calculate a lifespan influencing factor of the first target telescopic joint based on the average change frequency and the deflection ratio;

[0056] The remaining service life prediction module retrieves the initial service life of all second target expansion joints from the historical operation and maintenance database of the power transmission system, calculates the total operating time of the second target expansion joints, and calculates the remaining service life of the second target expansion joints;

[0057] The path control module sorts out all transmission paths in the power transmission system, counts the number of second target expansion joints in each transmission path, and calculates the average remaining service life of the second target expansion joints in each transmission path; and screens the average remaining service life to obtain the target transmission path.

[0058] Furthermore, the data acquisition module includes a data retrieval unit, a data screening unit, and a working condition capture unit;

[0059] The data retrieval unit retrieves the expansion joint operation data records monitored by sensors at regular intervals from the historical operation and maintenance database of the power transmission system;

[0060] a data screening unit, which screens the data monitored by the sensor from each expansion joint operation data record, and sets the data as target data if the monitored data is higher than the sensor monitoring data threshold, and sets the expansion joint corresponding to the target data as the first target expansion joint;

[0061] The working condition capture unit is used to obtain the expansion and contraction amount of the first target expansion joint; integrate the target data and the expansion and contraction amount corresponding to the target data in each first target expansion joint operation data record to obtain the target working condition data group of the first target expansion joint.

[0062] Furthermore, the analysis and calculation module includes an average change frequency calculation unit, a deviation ratio calculation unit, and a lifespan impact factor calculation unit;

[0063] an average change frequency calculation unit, configured to extract a target data sequence corresponding to a target expansion amount from a target operating condition data group of a first target expansion joint, sort the target data sequence according to a time series, compare two adjacent target data, count the total number of changes of the first target expansion joint corresponding to the target expansion amount and the total time interval between the changes, and thereby calculate an average change frequency of the first target expansion joint;

[0064] a deflection ratio calculation unit, configured to extract all expansion and contraction amounts of the first target expansion and contraction joint from the target operating condition data group of the first target expansion and contraction joint, and number the expansion and contraction amounts in time series to form an expansion and contraction amount sequence; based on the expansion and contraction amount sequence, analyze expansion and contraction amount differences to determine the deflection of the first target expansion and contraction joint; and count the number of positive and negative changes of the first target expansion and contraction joint to calculate the deflection ratio;

[0065] The life impact factor calculation unit calculates the life impact factor based on the average change frequency and deviation ratio of the first target telescopic joint and the corresponding weight factor, integrates the life impact factors of all first target telescopic joints, and sets the first target telescopic joint whose life impact factor is higher than the life impact factor threshold as the second target telescopic joint.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] At the data utilization and analysis level, by retrieving the expansion joint operation data records containing various sensor data from the historical operation and maintenance database of the power transmission system, the operating status of the expansion joint can be fully and accurately grasped; on this basis, the target data can be screened and the target operating condition data group can be obtained, providing strong support for subsequent precise analysis; the average change frequency, deviation ratio and life influencing factor of the expansion joint can be calculated, which can comprehensively consider the impact of various complex factors on the life of the expansion joint, and thus quantitatively evaluate the health status of the expansion joint.

[0068] For the life management of expansion joints, the present invention can accurately lock the expansion joints whose life influencing factors are higher than the threshold, that is, the second target expansion joints, and predict their remaining service life; this function enables operation and maintenance personnel to understand the remaining usable time of the expansion joints in advance, providing a scientific basis for equipment replacement and maintenance, avoiding power transmission failures caused by accidental damage to the expansion joints, effectively reducing the probability of power outages, and ensuring the continuity and stability of power supply.

[0069] In terms of power transmission path control, based on the prediction results of the remaining service life of the expansion joints, the transmission paths in the power transmission system are intelligently controlled; by calculating the average remaining service life of the second target expansion joint in each transmission path and selecting the path with the longest average remaining service life of the expansion joints as the target transmission path, the power transmission process is optimized; this intelligent control method can maximize the use of the remaining life of the expansion joints, improve the overall reliability and operating efficiency of the power transmission system, and reduce operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 Schematic diagram of the method flow of the intelligent control system and method of the telescopic joint based on GIL multi-dimensional perception of the present invention;

[0071] Figure 2 This is a schematic diagram of the system structure of the intelligent control system and method of the telescopic joint based on GIL multi-dimensional perception of the present invention. DETAILED DESCRIPTION

[0072] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0073] Example 1: Figure 1 As shown, the present invention provides a technical solution, a method for intelligently controlling a telescopic joint based on GIL multi-dimensional perception, the method comprising:

[0074] Step S100: Retrieving telescopic joint operation data records; screening the telescopic joint operation data records, extracting target data, setting the telescopic joint corresponding to the target data as a first target telescopic joint; and obtaining a target operating condition data group for the first target telescopic joint based on the target data;

[0075] Wherein, step S100 includes:

[0076] Step S101: Sensors regularly monitor the operating status of the expansion joint and generate operating data records; the sensors include temperature sensors, humidity sensors, stress sensors, and displacement sensors;

[0077] Step S102: In each expansion joint operation data record, extract the temperature data x monitored by the temperature sensor, the humidity data y monitored by the humidity sensor, and the pressure data z monitored by the stress sensor to form a data tuple group[x,y,z]; if any data in the data tuple group is higher than the corresponding set data threshold, set the data in the data tuple group as the target data Data i j , the target data Data ij The corresponding expansion joint is the first target expansion joint; Data i j represents the jth target data of the i-th first target expansion joint;

[0078] Step S103: extract the expansion and contraction amount L monitored by the displacement sensor in the operation data record corresponding to the first target expansion joint i j Among them, L i j Indicates the expansion amount corresponding to the jth target data of the i-th first target expansion joint;

[0079] Step S104: Integrate the target data corresponding to all first target telescopic joints and the telescopic amounts corresponding to the target data to obtain the target working condition data group Tag (Data i j ,L i j );

[0080] Step S200: Analyzing target data based on the target operating condition data group of the first target telescopic joint, and calculating the average change frequency of the first target telescopic joint;

[0081] Wherein, step S200 includes:

[0082] Step S201: extract the target working condition data group Tag of the first target telescopic joint, divide the same telescopic amount into target telescopic amounts, extract all target data corresponding to the target telescopic amount, and form a target data sequence D = {Data i 1 ,Data i 2 ,...,Data i j , ...};

[0083] Step S202: sort the target data in the target data sequence D according to a time series, compare two adjacent target data, and if the two adjacent target data are different, accumulate the number of changes of the first target telescopic section; obtain the total number of changes of the first target telescopic section corresponding to the target telescopic amount, and record the time interval corresponding to each change of the first target telescopic section corresponding to the target telescopic amount, and obtain the total time interval corresponding to the changes of the first target telescopic section corresponding to the target telescopic amount;

[0084] Step S203: Calculate the average change frequency of the first target telescopic joint;

[0085]

[0086] Where F represents the average change frequency of the first target telescopic joint; K j Represents the total number of changes corresponding to the j-th target expansion amount; ω j The weight factor corresponding to the total number of changes; t j represents the total time interval corresponding to the change of the first target expansion joint corresponding to the jth target expansion amount; N represents the number of target expansion amounts;

[0087] In an embodiment of the present invention, two expansion amounts (N=2) of a first target expansion joint are selected; the total number of changes corresponding to the first expansion amount is K1=10, the total time interval is t1=5, and the weight factor is ω1=1; the total number of changes corresponding to the second expansion amount is K2=18, the total time interval is t2=3, and the weight factor is ω2=1; therefore, the average change frequency F of the first target expansion joint is F=4;

[0088] Step S300: analyzing the target operating condition data group of the first target telescopic joint to obtain the deflection ratio of the first target telescopic joint;

[0089] Wherein, step S300 includes:

[0090] Step S301: extract all the expansion and contraction amounts of the first target expansion and contraction joint from the target working condition data group Tag of the first target expansion and contraction joint, number the expansion and contraction amounts according to the time series, and obtain the expansion and contraction amount sequence C of the first target expansion and contraction joint = {C i 1 ,C i 2 ,...,C i j ,...};

[0091] Step S302: Calculate the expansion difference ΔC=C i j+1 -C i j Among them, C i j+1 and C i j , respectively represent the j+1th and jth expansion amounts of the i-th first target expansion joint;

[0092] Step S303: If the expansion difference ΔC>0, it is determined that the first target expansion joint has a positive change, and the number of positive changes of the first target expansion joint P is accumulated. f If the telescopic difference ΔC <0, it is determined that the first target telescopic section has reversed, and the cumulative number of reverse changes of the first target telescopic section P b ;;

[0093] Step S304: Calculate the deflection ratio of the first target telescopic joint. The calculation formula of the deflection ratio is as follows:

[0094]

[0095] Wherein, P represents the deflection ratio of the first target telescopic joint;

[0096] In the embodiment of the present invention, a first target telescopic joint changes positively a number of times P within a period of time. f =20, reverse change times P b =10; therefore, the deflection ratio of the first target telescopic joint is P=20÷(20+10)=0.67;

[0097] Step S400: Calculating the lifespan influencing factor of each first target telescopic joint based on the average change frequency and deflection ratio of the first target telescopic joint; integrating and analyzing the lifespan influencing factors corresponding to all first target telescopic joints to obtain a second target telescopic joint;

[0098] Wherein, step S400 includes:

[0099] Step S401: Calculate the life impact factor of the first target telescopic joint. The calculation formula of the life impact factor is as follows:

[0100] LIF=ω F F+ω P P;

[0101] Wherein, LIF represents the life influencing factor of the first target telescopic joint; F represents the average change frequency of the first target telescopic joint; ω F represents the weight factor corresponding to the average change frequency; P represents the deflection ratio of the first target telescopic joint; ω P represents the weight factor corresponding to the bias ratio;

[0102] Step S402: integrating the life impact factors of all first target telescopic joints; if the life impact factor is greater than a preset life impact factor threshold, setting the first target telescopic joint corresponding to the life impact factor as the second target telescopic joint;

[0103] In the embodiment of the present invention, the average change frequency of a first target telescopic joint is F=4, the deflection ratio is P=0.67, and the corresponding weight factor ω F =0.6,ω P =0.4; therefore, the life impact factor LIF of the first target expansion joint = (4×0.6) + (0.4×0.67) = 3.47;

[0104] Step S500: Predicting the remaining service life of each of the second target expansion joints;

[0105] Wherein, step S500 includes:

[0106] Step S501: retrieving the initial service life of all second target expansion joints from the historical operation and maintenance database of the power transmission system, and calculating the total operating time of each second target expansion joint;

[0107] Step S502: Calculating the remaining service life of each second target expansion joint;

[0108]

[0109] Among them, T R represents the remaining service life of the second target expansion joint; T t represents the initial service life of the second target expansion joint; T u represents the total operating time of the second target telescopic joint; LIF represents the life impact factor of the second target telescopic joint; α represents the adjustment coefficient corresponding to the life impact factor;

[0110] In the embodiment of the present invention, the second target initial service life T of the expansion joint is selected t =10000, running time T u =3000, life impact factor LIF=1.2, adjustment coefficient α=0.5; therefore, the remaining service life of the second target expansion joint is T R =(10000-3000)÷(1+1.5×1.2)=4375;

[0111] Step S600: Based on the prediction result, intelligently adjust the power transmission path in the power transmission system to obtain a target transmission path;

[0112] Step S600 includes:

[0113] Step S601: comprehensively sorting out all transmission paths in the power transmission system and counting the number of second target expansion joints in each transmission path;

[0114] Step S602: If the number of second target telescopic joints in the transmission path is 0, the transmission path is used as the target transmission path;

[0115] Step S603: If the number of the second target telescopic joints in the transmission path is not 0, the average remaining service life of the second target telescopic joints in the transmission path is calculated:

[0116]

[0117] in, represents the average remaining service life of the second target telescopic joint in the transmission path; represents the remaining service life of the i-th second target expansion joint in the transmission path; ω i represents the weight factor corresponding to the remaining service life of the i-th second target expansion joint; m represents the number of second target expansion joints in the transmission path;

[0118] In the embodiment of the present invention, the selected transmission path contains 3 second target telescopic joints (m=3), the remaining service life is 4000, 4500, 5000 respectively, and the weight factor is 1; then the average service life of the second target telescopic joint in the transmission path is

[0119] Step S604: comparing the average remaining service life of the second target telescopic joints in all transmission paths, and selecting the transmission path with the longest average remaining service life as the target transmission path;

[0120] Example 2: Figure 2 As shown, in order to better implement the above method, an intelligent control system for telescopic joints based on GIL multi-dimensional perception is also provided, and the intelligent control system includes a data acquisition module, an analysis and calculation module, a remaining life prediction module, and a path control module;

[0121] The data acquisition module is responsible for collecting, filtering and integrating the operation data records of the expansion joints monitored by the sensors from the historical operation and maintenance database of the power transmission system, and setting the first target expansion joint;

[0122] an analysis and calculation module, configured to calculate an average change frequency and a deflection ratio of the first target telescopic joint, and calculate a lifespan influencing factor of the first target telescopic joint based on the average change frequency and the deflection ratio;

[0123] The remaining service life prediction module retrieves the initial service life of all second target expansion joints from the historical operation and maintenance database of the power transmission system, calculates the total operating time of the second target expansion joints, and calculates the remaining service life of the second target expansion joints;

[0124] A path control module is configured to sort out all transmission paths in the power transmission system, count the number of second target expansion joints in each transmission path, and calculate the average remaining service life of the second target expansion joints in each transmission path; filter the average remaining service life to obtain the target transmission path;

[0125] Among them, the data acquisition module includes a data retrieval unit, a data screening unit, and a working condition capture unit;

[0126] The data retrieval unit retrieves the expansion joint operation data records monitored by sensors at regular intervals from the historical operation and maintenance database of the power transmission system;

[0127] a data screening unit, which screens the data monitored by the sensor from each expansion joint operation data record, and sets the data as target data if the monitored data is higher than the sensor monitoring data threshold, and sets the expansion joint corresponding to the target data as the first target expansion joint;

[0128] a working condition capturing unit, configured to obtain the expansion and contraction amount of the first target expansion joint; and integrate the target data and the expansion and contraction amount corresponding to the target data in each first target expansion joint operation data record to obtain a target working condition data set of the first target expansion joint;

[0129] Among them, the analysis and calculation module includes an average change frequency calculation unit, a deviation ratio calculation unit and a life impact factor calculation unit;

[0130] an average change frequency calculation unit, configured to extract a target data sequence corresponding to a target expansion amount from a target operating condition data group of a first target expansion joint, sort the target data sequence according to a time series, compare two adjacent target data, count the total number of changes of the first target expansion joint corresponding to the target expansion amount and the total time interval between the changes, and thereby calculate an average change frequency of the first target expansion joint;

[0131] a deflection ratio calculation unit, configured to extract all expansion and contraction amounts of the first target expansion and contraction joint from the target operating condition data group of the first target expansion and contraction joint, and number the expansion and contraction amounts in time series to form an expansion and contraction amount sequence; based on the expansion and contraction amount sequence, analyze expansion and contraction amount differences to determine the deflection of the first target expansion and contraction joint; and count the number of positive and negative changes of the first target expansion and contraction joint to calculate the deflection ratio;

[0132] The life impact factor calculation unit calculates the life impact factor based on the average change frequency and deviation ratio of the first target telescopic joint and the corresponding weight factor, integrates the life impact factors of all first target telescopic joints, and sets the first target telescopic joint whose life impact factor is higher than the life impact factor threshold as the second target telescopic joint.

[0133] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. The intelligent control method of expansion joint based on GIL multi-dimensional perception is characterized by: The intelligent control method includes: Step S100: Retrieving telescopic joint operation data records; screening the telescopic joint operation data records, extracting target data, setting the telescopic joint corresponding to the target data as a first target telescopic joint; and obtaining a target operating condition data group for the first target telescopic joint based on the target data; Step S200: Analyzing target data based on the target operating condition data group of the first target telescopic joint, and calculating the average change frequency of the first target telescopic joint; Step S300: analyzing the target operating condition data group of the first target telescopic joint to obtain the deflection ratio of the first target telescopic joint; Step S400: Calculating the lifespan influencing factor of each first target telescopic joint based on the average change frequency and deflection ratio of the first target telescopic joint; integrating and analyzing the lifespan influencing factors corresponding to all first target telescopic joints to obtain a second target telescopic joint; Step S500: Predicting the remaining service life of each of the second target expansion joints; Step S600: Based on the prediction result, the power transmission path in the power transmission system is intelligently regulated to obtain a target transmission path.

2. The intelligent control method for expansion joints based on GIL multi-dimensional perception according to claim 1 is characterized in that: Step S100 includes: Step S101: Sensors regularly monitor the operating status of the expansion joint and generate operating data records; the sensors include temperature sensors, humidity sensors, stress sensors, and displacement sensors; Step S102: In each expansion joint operation data record, extract the temperature data x monitored by the temperature sensor, the humidity data y monitored by the humidity sensor, and the pressure data z monitored by the stress sensor to form a data tuple group[x,y,z]; if any data in the data tuple group is higher than the corresponding set data threshold, set the data in the data tuple group as the target data Data i j , the target data Data i j The corresponding expansion joint is the first target expansion joint; Data i j represents the jth target data of the i-th first target expansion joint; Step S103: extract the expansion and contraction amount L monitored by the displacement sensor in the operation data record corresponding to the first target expansion joint i j Among them, L i j Indicates the expansion amount corresponding to the jth target data of the i-th first target expansion joint; Step S104: Integrate the target data corresponding to all first target telescopic joints and the telescopic amounts corresponding to the target data to obtain the target working condition data group Tag (Data i j ,L i j ).

3. The intelligent control method for expansion joints based on GIL multi-dimensional perception according to claim 1 is characterized in that: Step S200 includes: Step S201: extract the target working condition data group Tag of the first target telescopic joint, divide the same telescopic amount into target telescopic amounts, extract all target data corresponding to the target telescopic amount, and form a target data sequence D = {Data i 1 ,Data i 2 ,...,Data i j , ...}; Step S202: sort the target data in the target data sequence D according to a time series, compare two adjacent target data, and if the two adjacent target data are different, accumulate the number of changes of the first target telescopic section; obtain the total number of changes of the first target telescopic section corresponding to the target telescopic amount, and record the time interval corresponding to each change of the first target telescopic section corresponding to the target telescopic amount, and obtain the total time interval corresponding to the changes of the first target telescopic section corresponding to the target telescopic amount; Step S203: Calculate the average change frequency of the first target telescopic joint; Where F represents the average change frequency of the first target telescopic joint; K j Represents the total number of changes corresponding to the j-th target expansion amount; ω j The weight factor corresponding to the total number of changes; t j It represents the total time interval corresponding to the change of the first target expansion joint corresponding to the j-th target expansion amount; N represents the number of target expansion amounts.

4. The intelligent control method for expansion joints based on GIL multi-dimensional perception according to claim 1 is characterized in that: Step S300 includes: Step S301: extract all the expansion and contraction amounts of the first target expansion and contraction joint from the target working condition data group Tag of the first target expansion and contraction joint, number the expansion and contraction amounts according to the time series, and obtain the expansion and contraction amount sequence C of the first target expansion and contraction joint = {C i 1 ,C i 2 ,...,C i j ,...}; Step S302: Calculate the expansion difference ΔC=C i j+1 -C i j Among them, C i j+1 and C i j , respectively represent the j+1th and jth expansion amounts of the i-th first target expansion joint; Step S303: If the expansion difference ΔC>0, it is determined that the first target expansion joint has a positive change, and the number of positive changes of the first target expansion joint P is accumulated. f If the telescopic difference ΔC <0, it is determined that the first target telescopic section has reversed, and the cumulative number of reverse changes of the first target telescopic section P b ;; Step S304: Calculate the deflection ratio of the first target telescopic joint. The calculation formula of the deflection ratio is as follows: Wherein, P represents the deflection ratio of the first target telescopic joint.

5. The intelligent control method for expansion joints based on GIL multi-dimensional perception according to claim 1 is characterized in that: Step S400: Step S401: Calculate the life impact factor of the first target telescopic joint. The calculation formula of the life impact factor is as follows: LIF=ω F F+ω P P; Wherein, LIF represents the life influencing factor of the first target telescopic joint; F represents the average change frequency of the first target telescopic joint; ω F represents the weight factor corresponding to the average change frequency; P represents the deflection ratio of the first target telescopic joint; ω P represents the weight factor corresponding to the bias ratio; Step S402: integrating the life impact factors of all first target telescopic joints; if the life impact factor is greater than a preset life impact factor threshold, setting the first target telescopic joint corresponding to the life impact factor as the second target telescopic joint.

6. The method for intelligent control of expansion joints based on GIL multi-dimensional perception according to claim 1 is characterized in that: Step S500: Step S501: retrieving the initial service life of all second target expansion joints from the historical operation and maintenance database of the power transmission system, and calculating the total operating time of each second target expansion joint; Step S502: Calculating the remaining service life of each second target expansion joint; Among them, T R T represents the remaining service life of the second target expansion joint; t represents the initial service life of the second target expansion joint; T u represents the total operating time of the second target telescopic joint; LIF represents the life impact factor of the second target telescopic joint; α represents the adjustment coefficient corresponding to the life impact factor.

7. The intelligent control method for expansion joints based on GIL multi-dimensional perception according to claim 1 is characterized in that: Step S600 includes: Step S601: comprehensively sorting out all transmission paths in the power transmission system and counting the number of second target expansion joints in each transmission path; Step S602: If the number of second target telescopic joints in the transmission path is 0, the transmission path is used as the target transmission path; Step S603: If the number of the second target telescopic joints in the transmission path is not 0, the average remaining service life of the second target telescopic joints in the transmission path is calculated: in, represents the average remaining service life of the second target telescopic joint in the transmission path; represents the remaining service life of the i-th second target expansion joint in the transmission path; ω i represents the weight factor corresponding to the remaining service life of the i-th second target expansion joint; m represents the number of second target expansion joints in the transmission path; Step S604: comparing the average remaining service life of the second target telescopic joints in all transmission paths, and selecting the transmission path with the longest average remaining service life as the target transmission path.

8. An intelligent control system for expansion joints based on GIL multi-dimensional perception, used to execute the intelligent control method for expansion joints based on GIL multi-dimensional perception according to any one of claims 1 to 7, characterized in that: The intelligent control system includes a data acquisition module, an analysis and calculation module, a remaining life prediction module, and a path control module; The data acquisition module is responsible for collecting, screening and integrating the operation data records of the expansion joints monitored by the sensors from the historical operation and maintenance database of the power transmission system, and setting the first target expansion joint; The analysis and calculation module is used to calculate the average change frequency and deflection ratio of the first target telescopic joint, and calculate the life impact factor of the first target telescopic joint based on the average change frequency and deflection ratio; The remaining service life prediction module retrieves the initial service life of all second target expansion joints from the historical operation and maintenance database of the power transmission system, calculates the total operating time of the second target expansion joints, and calculates the remaining service life of the second target expansion joints; The path control module sorts out all transmission paths in the power transmission system, counts the number of second target expansion joints in each transmission path, and calculates the average remaining service life of the second target expansion joints in each transmission path; and screens the average remaining service life to obtain the target transmission path.

9. The intelligent control system for expansion joints based on GIL multi-dimensional perception according to claim 8 is characterized in that: The data acquisition module includes a data retrieval unit, a data screening unit, and a working condition capture unit; The data retrieval unit retrieves the expansion joint operation data records regularly monitored by the sensor from the historical operation and maintenance database of the power transmission system; The data screening unit screens the data monitored by the sensor from each expansion joint operation data record, and if the monitored data is higher than the sensor monitoring data threshold, sets the data as target data, and sets the expansion joint corresponding to the target data as the first target expansion joint; The working condition capturing unit is configured to obtain the expansion and contraction amount of the first target expansion joint; The target data and the expansion amount corresponding to the target data in each first target telescopic joint operation data record are integrated to obtain a target operating condition data group of the first target telescopic joint.

10. The intelligent control system for expansion joints based on GIL multi-dimensional perception according to claim 8, characterized in that: The analysis and calculation module includes an average change frequency calculation unit, a deviation ratio calculation unit and a life impact factor calculation unit; The average change frequency calculation unit is used to extract a target data sequence corresponding to a target expansion amount from a target operating condition data group of the first target expansion joint, sort the target data sequence according to a time series, compare two adjacent target data, count the total number of changes of the first target expansion joint corresponding to the target expansion amount and the total time interval between the changes, and then calculate the average change frequency of the first target expansion joint; The deflection ratio calculation unit is configured to extract all expansion amounts of the first target expansion joint from the target operating condition data group of the first target expansion joint, and number the expansion amounts in time series to form an expansion amount sequence; based on the expansion amount sequence, analyze the expansion amount difference to determine the deflection of the first target expansion joint; Counting the number of positive and negative changes of the first target telescopic joint and calculating the deflection ratio; The life impact factor calculation unit calculates the life impact factor based on the average change frequency and the deviation ratio of the first target telescopic joints in combination with the corresponding weight factor, integrates the life impact factors of all first target telescopic joints, and sets the first target telescopic joint whose life impact factor is higher than the life impact factor threshold as the second target telescopic joint.

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