CN115423051A - Power inspection data mining, equipment state classification and risk prediction system and method - Google Patents

Power inspection data mining, equipment state classification and risk prediction system and method Download PDF

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CN115423051A
CN115423051A CN202211373057.7A CN202211373057A CN115423051A CN 115423051 A CN115423051 A CN 115423051A CN 202211373057 A CN202211373057 A CN 202211373057A CN 115423051 A CN115423051 A CN 115423051A
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王敏珍
王志钢
岳科宇
赵洪丹
郑宇�
赵立英
李成
齐恩铁
张琦
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Liaoyuan Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co
Changchun Institute of Applied Chemistry of CAS
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Changchun Institute of Applied Chemistry of CAS
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Abstract

The invention relates to the technical field of power grids, in particular to a system and a method for data mining, equipment state classification and risk prediction of power routing inspection, which comprises the following steps: the data acquisition module is used for acquiring power patrol data; the data preprocessing module is used for preprocessing the acquired power patrol data; the data mining module is used for constructing a data mining model for the collected power inspection data to perform data mining; the equipment state evaluation module is used for evaluating and classifying the equipment state; and the risk analysis module is used for predicting the risk of the equipment. According to the invention, the mass data is rapidly extracted by constructing the data mining model, so that manpower and material resources are saved; the equipment states are classified through data extracted by the data mining model, and then risk prediction is carried out on factors possibly causing equipment risks, so that reference is provided for optimizing the equipment.

Description

Power inspection data mining, equipment state classification and risk prediction system and method
Technical Field
The invention relates to the technical field of power grids, in particular to a power inspection data mining, equipment state classification and risk prediction system and method.
Background
The power grid system is an important national infrastructure, safe, stable and efficient operation of power production is related to the national civilians, has great significance for continuous and healthy development of the power industry, and is a constantly-running fundamental task in the whole industry. The state detection of the power grid equipment is the daily key work of a power company, in order to ensure the normal operation of the power equipment, a strict inspection plan needs to be made, and dispatching personnel inspect a transformer substation and a power transmission line so as to find hidden dangers and faults in time, gather the operation condition and the defect information of the equipment and perform regular analysis and statistics, so that the working intensity of the personnel is high, and the work task is heavy. The power equipment can generate mass data in the inspection process, and extraction of the mass data consumes a large amount of manpower and material resources. Therefore, how to improve the efficiency of evaluating the state of the power grid equipment becomes a technical problem to be solved at present.
Disclosure of Invention
The invention aims to solve the problems in the background technology by providing a power inspection data mining, equipment state classification and risk prediction system and a method.
The technical scheme adopted by the invention is as follows:
the utility model provides a data mining, equipment state classification and risk prediction system are patrolled and examined to electric power includes:
a data acquisition module: the power routing inspection system is used for collecting power routing inspection data;
a data preprocessing module: the power routing inspection system is used for preprocessing the collected power routing inspection data;
a data mining module: the system is used for constructing a data mining model for the collected power inspection data to carry out data mining;
an equipment state evaluation module: the device is used for evaluating and classifying the device state;
a risk analysis module: the risk prediction method is used for constructing a risk analysis model and predicting the risk of the equipment.
As a preferred technical scheme of the invention: the data preprocessing module is used for preprocessing the collected power inspection data, and comprises data cleaning and data normalization.
As a preferred technical scheme of the invention: the data mining module processes the power inspection data through Bayesian network parameter discretization, performs dimensionality reduction on the power inspection data, then constructs a data mining model, and further processes the data subjected to dimensionality reduction.
As a preferred technical scheme of the invention: the data mining model is constructed by the following steps:
setting the property capable of being mined, corresponding to different property data samples and numerical value relationship
Figure 145871DEST_PATH_IMAGE001
Comprises the following steps:
Figure 173255DEST_PATH_IMAGE002
wherein, the first and the second end of the pipe are connected with each other,
Figure 569601DEST_PATH_IMAGE003
represents a classification sample in the power patrol data,
Figure 239617DEST_PATH_IMAGE005
the probability that the attribute of the power patrol data is h is shown, n is the total amount of the power patrol data, i is the ith power patrol data,
Figure 354204DEST_PATH_IMAGE006
and the data set is patrolled for the ith power line.
As a preferred technical scheme of the invention: relationship of said values by Logistic function
Figure 869499DEST_PATH_IMAGE007
And (3) carrying out conversion:
Figure 385931DEST_PATH_IMAGE008
wherein, the first and the second end of the pipe are connected with each other,
Figure 226848DEST_PATH_IMAGE009
which represents the regression parameters introduced by the regression technique,
Figure 828730DEST_PATH_IMAGE010
representing the power patrol data group, e is a regression coefficient,
Figure 649181DEST_PATH_IMAGE011
is a deformation function;
constructing a numerical value extraction relation:
Figure 20120DEST_PATH_IMAGE012
wherein, b is a set threshold value,
Figure 31938DEST_PATH_IMAGE013
for the ith power patrol data group, Q is a set constant, corresponding to the value of the regression parameter, according to the value intervalForming the final extraction process.
As a preferred technical scheme of the invention: when extracting a large amount of power patrol data, expanding the introduced regression parameters
Figure 855537DEST_PATH_IMAGE014
The numerical value of (2) realizes the rapid extraction of a large amount of power patrol data.
As a preferred technical scheme of the invention: in the equipment state evaluation module, equipment data information is extracted based on a data mining model built by the data mining module, an equipment state evaluation matrix is built, an equipment state evaluation training matrix is obtained through an Adam algorithm, training data is obtained through a convolution algorithm, and the equipment state is classified through training a softmax classifier.
As a preferred technical scheme of the invention: the risk analysis module constructs a risk analysis model as follows:
the risk of the equipment is taken as a dependent variable A, and the risk factor is
Figure 978214DEST_PATH_IMAGE015
The functional relationship is:
Figure 203659DEST_PATH_IMAGE016
data patrol with electric power
Figure 651958DEST_PATH_IMAGE017
Merging:
Figure 962854DEST_PATH_IMAGE018
Figure 889221DEST_PATH_IMAGE020
Figure 470638DEST_PATH_IMAGE021
wherein the content of the first and second substances,
Figure 89838DEST_PATH_IMAGE022
are respectively to
Figure 888030DEST_PATH_IMAGE023
A power patrol data set under each risk factor;
determining an average value for each risk factor
Figure 618088DEST_PATH_IMAGE024
And variance
Figure 552546DEST_PATH_IMAGE025
Figure 342648DEST_PATH_IMAGE026
Figure 628136DEST_PATH_IMAGE027
Wherein n is the total amount of the power patrol data, k is the kth risk factor, i is the ith power patrol data,
Figure 630727DEST_PATH_IMAGE028
is the ith power patrol data for the kth risk factor;
for each risk factor variable
Figure 186735DEST_PATH_IMAGE029
Generating evenly distributed risk factors
Figure 147738DEST_PATH_IMAGE030
And polling data with electric power
Figure 389363DEST_PATH_IMAGE031
Performing combined analysis to determine probability density function of each risk factor variable
Figure 461225DEST_PATH_IMAGE032
And cumulative probability distribution function
Figure 370275DEST_PATH_IMAGE033
Figure 236600DEST_PATH_IMAGE034
Wherein the content of the first and second substances,
Figure 496680DEST_PATH_IMAGE035
the number of the variables of the risk factors,
Figure 106652DEST_PATH_IMAGE036
Figure 135788DEST_PATH_IMAGE037
in order to simulate the number of times,
Figure 907435DEST_PATH_IMAGE038
calculating risk factors
Figure 150417DEST_PATH_IMAGE039
Probability of occurrence
Figure 564081DEST_PATH_IMAGE040
And predicting the factors causing the equipment risk.
As a preferred technical scheme of the invention: and constructing a Bayesian network for equipment state diagnosis according to the probability of the random number of the risk factor, classifying risk grades according to the equipment states classified by the equipment state evaluation module, and predicting factors causing different equipment risk grades.
The method for mining the data of the power inspection, classifying the equipment state and predicting the risk comprises the following steps:
s1.1: collecting power patrol data through various sensor devices;
s1.2: preprocessing the collected power inspection data;
s1.3: constructing a data mining model to process the preprocessed power inspection data;
s1.4: extracting equipment data according to the constructed data mining model, and classifying the equipment state according to the equipment state evaluation training model;
s1.5: and (4) dividing equipment risk levels according to data mined by the data mining model and equipment states classified by the equipment state evaluation training model, and predicting the risk of the equipment.
Compared with the prior art, the system and the method for mining the power inspection data, classifying the equipment state and predicting the risk have the beneficial effects that:
according to the invention, the mass data is rapidly extracted by constructing the data mining model, so that manpower and material resources are saved; and classifying the equipment state through the data extracted by the data mining model, and then predicting the risk of factors which possibly cause equipment risk so as to provide reference for optimizing the equipment.
Drawings
FIG. 1 is a system block diagram of a preferred embodiment of the present invention;
FIG. 2 is a flow chart of a method in a preferred embodiment of the present invention.
The meaning of each label in the figure is: 100. a data acquisition module; 200. a data preprocessing module; 300. a data mining module; 400. a device state evaluation module; 500. and a risk analysis module.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and the features in the embodiments may be combined with each other, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a preferred embodiment of the present invention provides a power inspection data mining, equipment state classification, and risk prediction system and method, including:
the data acquisition module 100: the power routing inspection system is used for collecting power routing inspection data;
the data preprocessing module 200: the system is used for preprocessing the collected power patrol data;
the data mining module 300: the data mining system is used for constructing a data mining model for the collected power inspection data to carry out data mining;
device state evaluation module 400: the device is used for evaluating and classifying the state of the device;
risk analysis module 500: the risk prediction method is used for constructing a risk analysis model and predicting the risk of the equipment.
The data preprocessing module 200 preprocesses the collected power inspection data, including data cleaning and data normalization.
The data mining module 300 processes the power inspection data through Bayesian network parameter discretization, performs dimensionality reduction on the power inspection data, then constructs a data mining model, and further processes the dimensionality-reduced data.
The data mining model is constructed by the following steps:
setting the property capable of being mined, corresponding to different property data samples and numerical value relationship
Figure 447723DEST_PATH_IMAGE041
Comprises the following steps:
Figure 655851DEST_PATH_IMAGE042
wherein the content of the first and second substances,
Figure 624944DEST_PATH_IMAGE003
represents a classification sample in the power patrol data,
Figure 576719DEST_PATH_IMAGE043
the probability that the attribute of the power patrol data is h is represented, n is the total amount of the power patrol data, i is the ith power patrol data,
Figure 580447DEST_PATH_IMAGE044
and the data set is patrolled and examined for the ith power.
Relationship of said values by Logistic function
Figure 959476DEST_PATH_IMAGE045
And (3) carrying out transformation:
Figure 917330DEST_PATH_IMAGE046
wherein the content of the first and second substances,
Figure 407217DEST_PATH_IMAGE047
which represents the regression parameters introduced in the form of,
Figure 265452DEST_PATH_IMAGE010
representing the power patrol data group, e is a regression coefficient,
Figure 80961DEST_PATH_IMAGE048
is a deformation function;
constructing a numerical value extraction relation:
Figure 24646DEST_PATH_IMAGE049
wherein, b is a set threshold value,
Figure 52645DEST_PATH_IMAGE050
and (4) forming a final extraction process for the ith power patrol data set according to the numerical value interval, wherein Q is a set constant and corresponds to the numerical value of the regression parameter.
When a large amount of power inspection data are extracted, the numerical values of the introduced regression parameters are expanded, and the rapid extraction of the large amount of power inspection data is realized.
In the device state evaluation module 400, device data information is extracted based on a data mining model constructed by the data mining module 300, a device state evaluation matrix is constructed, a device state evaluation training matrix is obtained through an Adam algorithm, training data is obtained through a convolution algorithm, and the device state is classified through training a softmax classifier.
The risk analysis module 500 constructs a risk analysis model as follows:
taking the risk of the equipment as a dependent variable A, wherein the risk factor is
Figure 765386DEST_PATH_IMAGE052
The functional relationship is:
Figure 751797DEST_PATH_IMAGE053
data patrol with electric power
Figure 917199DEST_PATH_IMAGE017
Merging:
Figure 14468DEST_PATH_IMAGE054
Figure 83180DEST_PATH_IMAGE055
Figure 240492DEST_PATH_IMAGE021
wherein, the first and the second end of the pipe are connected with each other,
Figure 893190DEST_PATH_IMAGE022
are respectively to
Figure 528571DEST_PATH_IMAGE056
A power patrol data set under each risk factor;
determining an average value for each risk factor
Figure 215904DEST_PATH_IMAGE057
And variance
Figure 278538DEST_PATH_IMAGE058
Figure 418532DEST_PATH_IMAGE059
Figure 123183DEST_PATH_IMAGE060
Wherein n is the total amount of the power patrol data, k is the kth risk factor, i is the ith power patrol data,
Figure 665023DEST_PATH_IMAGE061
is the ith power patrol data for the kth risk factor;
for each risk factor variable
Figure 665602DEST_PATH_IMAGE062
Generating evenly distributed risk factors
Figure 292893DEST_PATH_IMAGE063
And polling data with power
Figure 4497DEST_PATH_IMAGE064
Performing combined analysis to determine probability density function of each risk factor variable
Figure 666422DEST_PATH_IMAGE065
And cumulative probability distribution function
Figure 336438DEST_PATH_IMAGE066
Figure 185445DEST_PATH_IMAGE067
Wherein the content of the first and second substances,
Figure 966320DEST_PATH_IMAGE068
the number of the variables of the risk factors,
Figure 482752DEST_PATH_IMAGE069
Figure 58089DEST_PATH_IMAGE070
in order to simulate the number of times,
Figure 155577DEST_PATH_IMAGE072
calculating risk factors
Figure 740143DEST_PATH_IMAGE073
Probability of occurrence
Figure 111081DEST_PATH_IMAGE074
And predicting the factors causing the equipment risk.
And constructing a Bayesian network for equipment state diagnosis according to the probability of the random number of the risk factor, dividing risk grades according to the equipment states classified by the equipment state evaluation module 400, and predicting factors causing different equipment risk grades.
The method for mining the power inspection data, classifying the equipment state and predicting the risk comprises the following steps:
s1.1: collecting power patrol data through various sensor devices;
s1.2: preprocessing the collected power patrol data;
s1.3: constructing a data mining model to process the preprocessed power patrol data;
s1.4: extracting equipment data according to the constructed data mining model, and classifying the equipment state according to the equipment state evaluation training model;
s1.5: and (4) dividing equipment risk levels according to data mined by the data mining model and equipment states classified by the equipment state evaluation training model, and predicting the risk of the equipment.
In this embodiment, the data acquisition module 100 acquires the power inspection equipment through various sensors, and performs preprocessing operations such as data cleaning and data normalization on the power inspection data. The data mining module 300 constructs a data mining model, which facilitates extraction of mass data.
Setting mineable attributes such as different temperature, voltage, power and other attributes, taking voltage attribute as an example, corresponding to different attribute data samples and numerical value relationship
Figure 857320DEST_PATH_IMAGE041
Comprises the following steps:
Figure 680920DEST_PATH_IMAGE075
wherein the content of the first and second substances,
Figure 69176DEST_PATH_IMAGE003
represents a classification sample in the power patrol data,
Figure 29041DEST_PATH_IMAGE076
the probability that the attribute of the power patrol data is h is shown, n is the total amount of the power patrol data, i is the ith power patrol data,
Figure 211761DEST_PATH_IMAGE077
and the data set is patrolled and examined for the ith power.
Relationship of said values by Logistic function
Figure 788236DEST_PATH_IMAGE078
And (3) carrying out transformation:
Figure 216069DEST_PATH_IMAGE079
wherein the content of the first and second substances,
Figure 296020DEST_PATH_IMAGE080
which represents the regression parameters introduced by the regression technique,
Figure 649641DEST_PATH_IMAGE010
representing the power patrol data group, e is a regression coefficient,
Figure 447833DEST_PATH_IMAGE081
is a deformation function;
classifying according to the voltage attribute needing to be excavated, and constructing a power patrol numerical value extraction relation of voltage attribute equipment according to the following formula:
Figure 912312DEST_PATH_IMAGE082
wherein, b is a set threshold value,
Figure 846770DEST_PATH_IMAGE083
and forming a final extraction process for the ith power patrol inspection data set according to the value interval, wherein Q is a set constant and corresponds to the value of the regression parameter. When a large amount of power inspection data with low voltage attributes need to be extracted, the numerical values of regression parameters are expanded, and the power inspection data with the low voltage attributes can be rapidly extracted.
The method comprises the steps of extracting power patrol data under a low-voltage working state of equipment according to a data mining model built by a data mining module 300, building a state evaluation matrix of the equipment under the low-voltage working state, obtaining a state evaluation training matrix of the equipment through an Adam algorithm, obtaining training data through a convolution algorithm, and dividing the state of the equipment into a first-stage working state, a second-stage working state, a third-stage working state and a halt/standby state through a training softmax classifier.
The risk analysis model excavates risk factors such as a high-pressure working state, a long-time low-pressure working state, a high-temperature working state and the like according to the data mining model, and still takes the low-pressure working state as an example, according to the constructed risk analysis model:
the risk of the equipment is taken as a dependent variable A, and the risk factor is
Figure 636871DEST_PATH_IMAGE015
The functional relationship is:
Figure 656780DEST_PATH_IMAGE016
data patrol with electric power
Figure 924950DEST_PATH_IMAGE017
Merging:
Figure 979494DEST_PATH_IMAGE084
Figure 910803DEST_PATH_IMAGE085
Figure 683587DEST_PATH_IMAGE086
wherein the content of the first and second substances,
Figure 755448DEST_PATH_IMAGE022
are respectively to
Figure 523553DEST_PATH_IMAGE023
A power patrol data set under each risk factor;
determining the average value of each risk factor
Figure 655457DEST_PATH_IMAGE057
And variance
Figure 885844DEST_PATH_IMAGE087
Figure 761396DEST_PATH_IMAGE088
Figure 524952DEST_PATH_IMAGE089
Wherein n is the total amount of the power patrol data, k is the kth risk factor, i is the ith power patrol data,
Figure 562178DEST_PATH_IMAGE090
is the ith power patrol data for the kth risk factor;
for low pressure risk factor variable
Figure 309555DEST_PATH_IMAGE091
To produce a uniform distribution
Figure 457639DEST_PATH_IMAGE092
And performing combined analysis with the power patrol data to determine the probability density function of each risk factor variable
Figure 341282DEST_PATH_IMAGE093
And cumulative probability distribution function
Figure 549409DEST_PATH_IMAGE094
Figure 518502DEST_PATH_IMAGE095
Wherein the content of the first and second substances,
Figure 470278DEST_PATH_IMAGE068
the number of the variables of the risk factors,
Figure 704032DEST_PATH_IMAGE096
Figure 348640DEST_PATH_IMAGE097
in order to simulate the number of times,
Figure 805029DEST_PATH_IMAGE098
determination of risk factors
Figure 294916DEST_PATH_IMAGE099
Probability of occurrence
Figure 153151DEST_PATH_IMAGE100
And predicting low-pressure risk factors causing equipment risks, and timely early warning and taking countermeasures according to the predicted abnormal running state of the equipment.
Constructing a Bayesian network for device status diagnosis based on the probability of the random number of the risk factor, and classifying risk levels based on the device statuses classified by the device status evaluation module 400, for example, classifying risk levels into classes
Figure 703081DEST_PATH_IMAGE101
And predicting the factors causing the risk of the equipment with the four risk levels.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (9)

1. Data mining, equipment state classification and risk prediction system are patrolled and examined to electric power, its characterized in that: the method comprises the following steps:
data acquisition module (100): the power routing inspection system is used for collecting power routing inspection data;
data pre-processing module (200): the power routing inspection system is used for preprocessing the collected power routing inspection data;
data mining module (300): the data mining system is used for constructing a data mining model for the collected power inspection data to carry out data mining;
device status evaluation module (400): the device is used for evaluating and classifying the device state;
risk analysis module (500): the risk prediction method is used for constructing a risk analysis model and predicting the risk of equipment;
the risk analysis module (500) constructs a risk analysis model as follows:
taking the risk of the equipment as a dependent variable A, wherein the risk factor is
Figure 426719DEST_PATH_IMAGE001
The functional relationship is:
Figure 720297DEST_PATH_IMAGE002
data patrol with electric power
Figure 433038DEST_PATH_IMAGE003
Merging:
Figure 153870DEST_PATH_IMAGE004
Figure 584851DEST_PATH_IMAGE005
Figure 682120DEST_PATH_IMAGE007
wherein the content of the first and second substances,
Figure 983788DEST_PATH_IMAGE008
are respectively to
Figure 141100DEST_PATH_IMAGE009
A power patrol data set under each risk factor;
determining the average value of each risk factor
Figure 528219DEST_PATH_IMAGE010
And variance
Figure 948222DEST_PATH_IMAGE011
Figure 635555DEST_PATH_IMAGE012
Figure 963768DEST_PATH_IMAGE013
Wherein n is the total amount of the power patrol data, k is the kth risk factor, i is the ith power patrol data,
Figure 838183DEST_PATH_IMAGE014
is the ith power patrol data for the kth risk factor;
for each risk factor variable
Figure 277255DEST_PATH_IMAGE015
Generating evenly distributed risk factors
Figure 553516DEST_PATH_IMAGE016
And polling data with electric power
Figure 52630DEST_PATH_IMAGE017
Performing combined analysis to determine probability density function of each risk factor variable
Figure 679920DEST_PATH_IMAGE018
And cumulative probability distribution function
Figure 657104DEST_PATH_IMAGE019
Figure 820494DEST_PATH_IMAGE020
Wherein the content of the first and second substances,
Figure 490510DEST_PATH_IMAGE021
the number of the variables of the risk factors,
Figure 73938DEST_PATH_IMAGE022
Figure 120391DEST_PATH_IMAGE023
in order to simulate the number of times,
Figure 636823DEST_PATH_IMAGE024
determination of risk factors
Figure 212161DEST_PATH_IMAGE025
Probability of occurrence
Figure 548465DEST_PATH_IMAGE026
And predicting the factors causing the equipment risk.
2. The power inspection data mining, equipment state classification and risk prediction system of claim 1, wherein: the data preprocessing module (200) preprocesses the collected power inspection data, including data cleaning and data normalization.
3. The power inspection data mining, equipment state classification and risk prediction system of claim 1, wherein: the data mining module (300) processes the power inspection data through Bayesian network parameter discretization, performs dimension reduction on the power inspection data, then constructs a data mining model, and further processes the dimension reduced data.
4. The power inspection data mining, equipment status classification, and risk prediction system of claim 3, wherein: the data mining model is constructed by the following steps:
setting mineable attribute, corresponding to different attribute data samples and numerical value relationship
Figure 867450DEST_PATH_IMAGE027
Comprises the following steps:
Figure 238389DEST_PATH_IMAGE028
wherein the content of the first and second substances,
Figure 984628DEST_PATH_IMAGE029
represents a classification sample in the power patrol data,
Figure 575272DEST_PATH_IMAGE030
the probability that the attribute of the power patrol data is h is represented, n is the total amount of the power patrol data, i is the ith power patrol data,
Figure 697948DEST_PATH_IMAGE031
and the data set is patrolled for the ith power line.
5. The power inspection data mining, equipment status classification, and risk prediction system of claim 4, wherein: relationship of said values by Logistic function
Figure 923393DEST_PATH_IMAGE032
And (3) carrying out transformation:
Figure 106113DEST_PATH_IMAGE033
wherein, the first and the second end of the pipe are connected with each other,
Figure 151429DEST_PATH_IMAGE034
which represents the regression parameters introduced in the form of,
Figure 77797DEST_PATH_IMAGE035
representing the power patrol data group, e is a regression coefficient,
Figure 157749DEST_PATH_IMAGE036
is a deformation function;
constructing a numerical extraction relation:
Figure 511370DEST_PATH_IMAGE037
wherein, b is a set threshold value,
Figure 309561DEST_PATH_IMAGE038
and forming a final extraction process for the ith power patrol inspection data set according to the value interval, wherein Q is a set constant and corresponds to the value of the regression parameter.
6. The power inspection data mining, equipment status classification and risk prediction system of claim 5, wherein: when extracting a large amount of power patrol data, expanding the introduced regression parameters
Figure 774041DEST_PATH_IMAGE039
The numerical value of (2) realizes the rapid extraction of a large amount of electric power inspection data.
7. The power inspection data mining, equipment status classification, and risk prediction system of claim 1, wherein: in the equipment state evaluation module (400), equipment data information is extracted based on a data mining model constructed by the data mining module (300), an equipment state evaluation matrix is constructed, an equipment state evaluation training matrix is obtained through an Adam algorithm, training data is obtained through a convolution algorithm, and the equipment state is classified through training a softmax classifier.
8. The power inspection data mining, equipment status classification, and risk prediction system of claim 1, wherein: and constructing a Bayesian network for equipment state diagnosis according to the probability of the random number of the risk factor, dividing risk grades according to the equipment states classified by the equipment state evaluation module (400), and predicting factors causing different equipment risk grades.
9. The method for mining power inspection data, classifying equipment states and predicting risks is characterized by comprising the following steps of: the method comprises the following steps:
s1.1: collecting power patrol data through various sensor devices;
s1.2: preprocessing the collected power inspection data;
s1.3: constructing a data mining model to process the preprocessed power inspection data;
s1.4: extracting equipment data according to the constructed data mining model, and classifying the equipment state according to the equipment state evaluation training model;
s1.5: and (4) dividing equipment risk levels according to data mined by the data mining model and equipment states classified by the equipment state evaluation training model, and predicting the risk of the equipment.
CN202211373057.7A 2022-11-04 2022-11-04 Power inspection data mining, equipment state classification and risk prediction system and method Pending CN115423051A (en)

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