CN118010104A - Electrical circuit aging degree detection method and system - Google Patents
Electrical circuit aging degree detection method and system Download PDFInfo
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- CN118010104A CN118010104A CN202410426176.7A CN202410426176A CN118010104A CN 118010104 A CN118010104 A CN 118010104A CN 202410426176 A CN202410426176 A CN 202410426176A CN 118010104 A CN118010104 A CN 118010104A
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 239000011241 protective layer Substances 0.000 claims abstract description 15
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- 230000007547 defect Effects 0.000 claims description 21
- 230000015556 catabolic process Effects 0.000 claims 4
- 238000006731 degradation reaction Methods 0.000 claims 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a method and a system for detecting the aging degree of an electric circuit, which are used for acquiring working parameters of electric equipment powered by a target electric circuit and appearance parameters of the target electric circuit in real time; comparing the real-time working parameters of the power equipment with the standard working parameters to obtain a first aging influence coefficient of the target electric circuit; based on the real-time appearance parameters of the target electric circuit and the comparison of the standard appearance parameters, obtaining a second aging influence coefficient of the target electric circuit; the first aging influence coefficient and the second aging influence coefficient are combined to obtain a comprehensive aging influence coefficient; and obtaining the aging degree of the target electric circuit based on the comprehensive aging influence coefficient. The aging degree of the electric circuit is analyzed by combining the working parameters of all the electric devices on the electric circuit with the appearance condition of the outer protective layer of the electric circuit, so that the aging detection accuracy of the electric circuit is improved, the normal use of all the electric devices along the electric circuit is ensured, and the occurrence of fire is avoided.
Description
Technical Field
The invention relates to electric circuit detection, in particular to an electric circuit aging degree detection method and system.
Background
As the electrification degree is higher and higher, the application range of the electrical equipment is continuously expanded, the importance of the electrical equipment on the aging detection of the electrical circuit is increasingly prominent for maintaining the normal operation and the service life of the electrical equipment, and the prior art has the following defects;
In the prior art, the electrical circuit is inspected by a circuit inspection person, so that the detection efficiency of the aging detection of the electrical circuit is reduced, and meanwhile, as the inspection person cannot analyze various types of data in detail at the same time, the accuracy of the aging detection of the electrical circuit is reduced; the existing inspection mode is generally used for solving the problems that whether obvious damage and abnormality occur in an outer protective layer of an electric circuit or not, the analysis means are single, the analysis data are single, the electric circuit aging detection is incomplete, the accuracy of the electric circuit aging detection is further reduced, the normal use of all electric equipment along the electric circuit is affected, and even a fire disaster can be caused.
Disclosure of Invention
The invention aims to: aiming at the defects, the invention provides a high-accuracy electrical circuit aging degree detection method and system.
The technical scheme is as follows: in order to solve the problems, the invention adopts a method for detecting the aging degree of an electric circuit, which comprises the following steps:
(1) Acquiring working parameters of power equipment supplied by a target electric circuit and appearance images of the target electric circuit in real time, and acquiring the appearance parameters of the target electric circuit through the appearance images of the target electric circuit;
(2) Based on comparison of real-time working parameters of the power equipment and standard working parameters, a first aging influence coefficient of the target electric circuit is obtained through analysis ; Based on the comparison of the real-time appearance parameters of the target electric circuit and the standard appearance parameters, analyzing and obtaining a second aging influence coefficient/>；
(3) First aging influence coefficientAnd a second aging influence coefficient/>Combining to obtain a comprehensive ageing influence coefficient;
(4) And analyzing and obtaining the aging degree of the target electric circuit based on the obtained comprehensive aging influence coefficient and a preset standard comprehensive aging influence coefficient.
Further, the operating parameters of the electrical equipment include real-time voltage, current and electrical power; the appearance parameters of the target electric circuit comprise the defect total volume and the crack total length corresponding to the outer protective layer.
Further, the first aging influence coefficientThe calculation formula of (2) is as follows:
；
Wherein, For the total number of power devices powered by the target electrical line,/>For/>A power load factor of the individual power devices; /(I)Is a preset first aging influence coefficient influence factor.
Further, the electric load factorThe calculation formula of (2) is as follows:
；
Wherein, For/>Voltage load coefficients of the individual electrical devices; /(I)For/>Current load coefficients of the individual electrical devices; /(I)For/>An electric power load factor of the individual electric power devices; /(I)The power balance coefficient is the power balance coefficient of the power equipment; /(I)Is a preset power load factor influence factor.
Further, the working voltage curve, the working current curve and the working electric power curve of the power equipment are obtained through the obtained working voltage, the working current and the working electric power of the power equipment in real time;
And comparing and analyzing the real-time working voltage curve, working current curve and working electric power curve of the power equipment with the standard working voltage curve, standard working current curve and standard working electric power curve of the power equipment under the stable power supply of the target electric circuit respectively to obtain the voltage coincidence coefficient, the current load coefficient and the electric power load coefficient of the power equipment.
Further, the second aging influence coefficientThe calculation formula of (2) is as follows:
；
Wherein, The total volume of defects which is the standard of the target electric circuit; /(I)Total length of the crack which is standard for the target electric circuit; /(I)The real-time defect total volume of the target electric circuit is obtained; /(I)Real-time total length of the crack for the target electrical line; /(I)Is a preset defect total volume influence factor; /(I)A preset total length of the fracture influencing factor; /(I)Is a preset second aging influence coefficient influence factor.
Further, the comprehensive aging influence coefficientThe calculation formula of (2) is as follows:
；
Wherein, For the total number of power devices powered by the target electrical line,/>For/>Number of failures in the working time of each power equipment,/>For the preset failure times weight,/>Is a preset comprehensive aging influence coefficient influence factor.
Further, the step (4) specifically includes: comparing and analyzing the comprehensive ageing influence coefficient obtained through real-time calculation with a preset standard comprehensive ageing influence coefficient; if the real-time comprehensive aging influence coefficient of the target electric circuit is smaller than the preset standard comprehensive aging influence coefficient, the circuit aging corresponding to the target electric circuit is indicated to be in a safety range, and if the real-time comprehensive aging influence coefficient of the target electric circuit is larger than or equal to the preset standard comprehensive aging influence coefficient, the circuit aging corresponding to the target electric circuit is indicated to reach a dangerous range.
The invention also adopts an electrical circuit aging degree detection system, which comprises a data acquisition module, a calculation module and an analysis module;
the data acquisition module is used for acquiring working parameters of the power equipment powered by the target electric circuit and appearance images of the target electric circuit in real time, and acquiring the appearance parameters of the target electric circuit through the appearance images of the target electric circuit;
The calculation module is used for comparing the real-time working parameters of the power equipment with the standard working parameters and analyzing to obtain a first aging influence coefficient of the target electric circuit; based on the real-time appearance parameters of the target electric circuit and the comparison of the standard appearance parameters, analyzing to obtain a second aging influence coefficient of the target electric circuit; the first aging influence coefficient and the second aging influence coefficient are combined to obtain a comprehensive aging influence coefficient;
the analysis module is used for analyzing and obtaining the aging degree of the target electric circuit based on the obtained comprehensive aging influence coefficient and a preset standard comprehensive aging influence coefficient.
Further, detecting the power equipment along the target electric circuit through a high-precision multimeter preset along the target electric circuit to obtain the working parameters of the power equipment along the target electric circuit; the operating parameters of the electrical equipment include real-time voltage, current and electrical power; acquiring information of a target electric circuit through a high-definition camera preset along the line of the target electric circuit to obtain an appearance image of the target electric circuit; appearance parameters of the target electric circuit obtained from the appearance image of the target electric circuit comprise the defect total volume and the crack total length corresponding to the outer protective layer.
The beneficial effects are that: compared with the prior art, the invention has the remarkable advantages that the aging degree of the electric circuit is analyzed by combining the working parameters of all the electric devices on the electric circuit with the appearance condition of the outer protective layer of the electric circuit, the aging detection accuracy of the electric circuit is improved, the normal use of all the electric devices along the electric circuit is ensured, and the occurrence of fire is avoided.
Drawings
FIG. 1 is a schematic diagram of the operation flow of the method for detecting the aging degree of the electrical circuit according to the present invention.
Detailed Description
As shown in fig. 1, the method for detecting the aging degree of the electrical circuit in this embodiment includes the following steps:
and detecting various kinds of power equipment along the target electric circuit through a high-precision universal meter preset along the target electric circuit, so as to obtain equipment working parameters of the various kinds of power equipment along the target electric circuit.
Analyzing equipment working parameters of various kinds of electric equipment to obtain a first aging influence coefficient corresponding to a target electric circuit; the method comprises the following steps:
Extracting a standard working current change curve, a standard working voltage change curve and a standard working electric power change curve of various kinds of electric equipment stored in a database under the stable power supply of a target electric circuit;
The equipment working parameters of all kinds of electric equipment along the target electric circuit comprise real-time voltage, current and electric power of all kinds of electric equipment along the target electric circuit, working voltage curves of all kinds of electric equipment along the target electric circuit are obtained by drawing images of the real-time working voltage of all kinds of electric equipment along the target electric circuit, and working current curves and working electric power curves of all kinds of electric equipment along the target electric circuit are obtained by drawing;
and comparing and analyzing the working voltage curve of each type of electric equipment along the target electric circuit with the standard working voltage change curve of each type of electric equipment under the stable power supply of the target electric circuit to obtain the voltage coincidence coefficients of each type of electric equipment along the target electric circuit, and similarly obtaining the current load coefficients and the electric power load coefficients of each type of electric equipment along the target electric circuit through the comparison and analysis.
Obtaining the power load coefficients of all kinds of power equipment along the target electric circuit according to the voltage coincidence coefficients, the current load coefficients and the power load coefficients of all kinds of power equipment along the target electric circuit; The calculation formula is as follows:；
Wherein, 、/>、/>The voltage coincidence coefficient, the current load coefficient and the electric power load coefficient of various kinds of electric equipment along the target electric circuit are respectively determined; /(I)，/>Is a positive integer,/>Number of various kinds of power equipment along the target electric circuitIs the total number of power devices; /(I)Expressed as preset power balance coefficient of various kinds of power equipment,/>The power load factor influence factors are expressed as preset power equipment of various types;
power load factor according to various kinds of power equipment along target electric circuit Obtaining a first aging influence coefficient/>, corresponding to the target electric circuit; The calculation formula is as follows:
；
Wherein, Represented as a preset first aging influence factor.
It should be noted that; voltage coincidence coefficient of various kinds of power equipment along target electric circuit in formulaCurrent load factor/>And electric Power load factor/>The larger the power load factor/>, of various kinds of power equipment along the target electrical lineThe larger;
voltage compliance coefficient for various kinds of power equipment along target electrical line Current load factor/>And electric Power load factor/>No interaction occurs.
And acquiring information of the target electric circuit through a high-definition camera preset along the target electric circuit to obtain image information of the target electric circuit.
Analyzing the image information corresponding to the target electric circuit to obtain appearance parameters of the target electric circuit, and obtaining a second aging influence coefficient corresponding to the target electric circuit according to the appearance parameters of the target electric circuit; the method comprises the following steps:
Extracting standard defect total volume of the outer protective layer corresponding to normal working condition of target electric circuit stored in database And fracture total length criterion/>；
The method comprises the steps of performing omnibearing scanning on image information corresponding to a target electric circuit through a preset high-precision contour scanner, establishing a three-dimensional model of the target electric circuit, extracting information from the three-dimensional model of the target electric circuit to obtain a defect total volume and a crack total length corresponding to an outer protective layer of the target electric circuit, and marking the defect total volume and the crack total length corresponding to the outer protective layer of the target electric circuit as follows respectively、/>；
Through the standard defect total volume of the outer protective layer under the normal working condition of the target electric circuitTotal length of fracture standard/>Total volume of defects corresponding to outer protective layer of target electrical circuit/>And total length of fracture/>Obtaining an aging influence coefficient II/>, corresponding to the target electric circuitThe calculation formula is as follows:
；
Wherein, Expressed as a preset defect total volume influence factor,/>Expressed as a preset fracture total length influencing factor,/>Expressed as a predetermined aging influence factor two.
It should be noted that the target electric circuit corresponds to the total standard defect volume of the outer protective layer under normal working conditionTotal length of fracture standard/>Total volume of defects corresponding to outer protective layer of corresponding target electrical circuit/>And total length of fracture/>The smaller the difference between the first aging influence coefficient and the second aging influence coefficient is, the second aging influence coefficient isThe smaller; defect total volume/>, corresponding to the outer protective layer of the target electrical circuitAnd total length of fracture/>And the two parts are not mutually influenced.
Comprehensively analyzing the first aging influence coefficient and the second aging influence coefficient corresponding to the target electric circuit to obtain the comprehensive aging influence coefficient corresponding to the target electric circuit; the method comprises the following steps:
extracting corresponding fault times in unit working time of various power equipment along target electric circuit stored in database ；
By a first aging influence coefficient corresponding to the target electric lineSecond aging influence coefficient corresponding to target electric circuit/>And the corresponding failure times/> of each type of power equipment along the target electric circuit in unit working timeObtaining the comprehensive ageing influence coefficient/>, corresponding to the target electric circuitThe calculation formula is as follows:
；
Wherein, Expressed as a preset number of failures weight,/>Expressed as a preset integrated aging influence factor.
Analyzing the comprehensive aging influence coefficient corresponding to the target electric circuit to obtain an aging degree analysis result of the target electric circuit, wherein the analysis result is specifically as follows:
And comparing and analyzing the comprehensive ageing influence coefficient corresponding to the target electric circuit with a preset standard comprehensive ageing influence coefficient, if the comprehensive ageing influence coefficient corresponding to the target electric circuit is smaller than the preset standard comprehensive ageing influence coefficient, indicating that the circuit ageing corresponding to the target electric circuit is in a safety range, taking the circuit ageing corresponding to the target electric circuit as an ageing analysis result of the target electric circuit in the safety range, and if the comprehensive ageing influence coefficient corresponding to the target electric circuit is larger than or equal to the preset standard comprehensive ageing influence coefficient, indicating that the circuit ageing corresponding to the target electric circuit reaches a dangerous range, and taking the circuit ageing reaching dangerous range corresponding to the target electric circuit as an ageing analysis result of the target electric circuit.
If the comprehensive aging influence coefficient is 0.54 and the standard comprehensive aging influence coefficient is 1, the comprehensive aging influence coefficient is smaller than the preset standard comprehensive aging influence coefficient, the circuit aging corresponding to the target electric circuit is indicated to be in a safety range, the circuit aging corresponding to the target electric circuit is taken as an aging analysis result of the target electric circuit in the safety range, if the comprehensive aging influence coefficient is 1.09 and the standard comprehensive aging influence coefficient is 1, the comprehensive aging influence coefficient is larger than the preset standard comprehensive aging influence coefficient, the circuit aging corresponding to the target electric circuit is indicated to be in a dangerous range, and the circuit aging corresponding to the target electric circuit is taken as the aging analysis result of the target electric circuit in the dangerous range.
Claims (10)
1. The method for detecting the aging degree of the electric circuit is characterized by comprising the following steps of:
(1) Acquiring working parameters of power equipment supplied by a target electric circuit and appearance images of the target electric circuit in real time, and acquiring the appearance parameters of the target electric circuit through the appearance images of the target electric circuit;
(2) Based on comparison of real-time working parameters of the power equipment and standard working parameters, a first aging influence coefficient of the target electric circuit is obtained through analysis ; Based on the comparison of the real-time appearance parameters of the target electric circuit and the standard appearance parameters, analyzing and obtaining a second aging influence coefficient/>；
(3) First aging influence coefficientAnd a second aging influence coefficient/>Combining to obtain a comprehensive ageing influence coefficient;
(4) And analyzing and obtaining the aging degree of the target electric circuit based on the obtained comprehensive aging influence coefficient and a preset standard comprehensive aging influence coefficient.
2. The method of claim 1, wherein the operating parameters of the electrical device include real-time voltage, current and electrical power; the appearance parameters of the target electric circuit comprise the defect total volume and the crack total length corresponding to the outer protective layer.
3. The electrical circuit degradation degree detection method according to claim 2, wherein the first degradation influence coefficientThe calculation formula of (2) is as follows:
；
Wherein, For the total number of power devices powered by the target electrical line,/>For/>A power load factor of the individual power devices; /(I)Is a preset first aging influence coefficient influence factor.
4. The electrical circuit degradation detection method according to claim 3, wherein the electrical load factorThe calculation formula of (2) is as follows:
；
Wherein, For/>Voltage load coefficients of the individual electrical devices; /(I)For/>Current load coefficients of the individual electrical devices; for/> An electric power load factor of the individual electric power devices; /(I)The power balance coefficient is the power balance coefficient of the power equipment; /(I)Is a preset power load factor influence factor.
5. The method for detecting the aging degree of the electric line according to claim 4, wherein the working voltage curve, the working current curve and the working electric power curve of the electric device are obtained through the acquired real-time working voltage, working current and working electric power of the electric device;
And comparing and analyzing the real-time working voltage curve, working current curve and working electric power curve of the power equipment with the standard working voltage curve, standard working current curve and standard working electric power curve of the power equipment under the stable power supply of the target electric circuit respectively to obtain the voltage coincidence coefficient, the current load coefficient and the electric power load coefficient of the power equipment.
6. The electrical circuit degradation degree detection method according to claim 2, wherein the second aging influence coefficientThe calculation formula of (2) is as follows:
；
Wherein, The total volume of defects which is the standard of the target electric circuit; /(I)Total length of the crack which is standard for the target electric circuit; the real-time defect total volume of the target electric circuit is obtained; /(I) Real-time total length of the crack for the target electrical line; /(I)Is a preset defect total volume influence factor; /(I)A preset total length of the fracture influencing factor; /(I)Is a preset second aging influence coefficient influence factor.
7. The method for detecting the degree of aging of an electrical circuit according to claim 1, wherein the integrated aging influence coefficientThe calculation formula of (2) is as follows:
；
Wherein, For the total number of power devices powered by the target electrical line,/>For/>Number of failures in the working time of each power equipment,/>For the preset failure times weight,/>Is a preset comprehensive aging influence coefficient influence factor.
8. The method of claim 1, wherein the step (4) specifically includes: comparing and analyzing the comprehensive ageing influence coefficient obtained through real-time calculation with a preset standard comprehensive ageing influence coefficient; if the real-time comprehensive aging influence coefficient of the target electric circuit is smaller than the preset standard comprehensive aging influence coefficient, the circuit aging corresponding to the target electric circuit is indicated to be in a safety range, and if the real-time comprehensive aging influence coefficient of the target electric circuit is larger than or equal to the preset standard comprehensive aging influence coefficient, the circuit aging corresponding to the target electric circuit is indicated to reach a dangerous range.
9. The system for detecting the aging degree of the electric circuit is characterized by comprising a data acquisition module, a calculation module and an analysis module;
the data acquisition module is used for acquiring working parameters of the power equipment powered by the target electric circuit and appearance images of the target electric circuit in real time, and acquiring the appearance parameters of the target electric circuit through the appearance images of the target electric circuit;
The calculation module is used for comparing the real-time working parameters of the power equipment with the standard working parameters and analyzing to obtain a first aging influence coefficient of the target electric circuit; based on the real-time appearance parameters of the target electric circuit and the comparison of the standard appearance parameters, analyzing to obtain a second aging influence coefficient of the target electric circuit; the first aging influence coefficient and the second aging influence coefficient are combined to obtain a comprehensive aging influence coefficient;
the analysis module is used for analyzing and obtaining the aging degree of the target electric circuit based on the obtained comprehensive aging influence coefficient and a preset standard comprehensive aging influence coefficient.
10. The electrical line aging degree detection system according to claim 9, wherein the working parameters of the electrical equipment along the target electrical line are obtained by detecting the electrical equipment along the target electrical line with a high-precision multimeter preset along the target electrical line; the operating parameters of the electrical equipment include real-time voltage, current and electrical power; acquiring information of a target electric circuit through a high-definition camera preset along the line of the target electric circuit to obtain an appearance image of the target electric circuit; appearance parameters of the target electric circuit obtained from the appearance image of the target electric circuit comprise the defect total volume and the crack total length corresponding to the outer protective layer.
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