CN116596908A

CN116596908A - Wire and cable safety state assessment method and system based on data processing

Info

Publication number: CN116596908A
Application number: CN202310623951.3A
Authority: CN
Inventors: 周建军
Original assignee: Nanjing Yixintong Electric Co ltd
Current assignee: Nanjing Yixintong Electric Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-08-15
Anticipated expiration: 2043-05-30
Also published as: CN116596908B

Abstract

The invention provides a wire and cable safety state assessment method and system based on data processing, which are characterized in that the number of insulators in a first assessment image is obtained, and abnormal insulator strings are determined according to the number of insulators and the number of standard insulators; acquiring a first number of each insulator corresponding to an abnormal insulator string in an abnormal image and a spacing distance between adjacent insulators, classifying the abnormal insulator strings according to an insulator string division strategy and the spacing distance to obtain one type of insulator strings or two types of insulator strings, and updating the first number according to the one type of insulator strings or the two types of insulator strings to obtain a second number corresponding to each insulator in the abnormal insulator strings; obtaining a slot number corresponding to each slot in a preset slot template, and corresponding a second number corresponding to each insulator in the abnormal insulator string and the slot number to obtain a missing insulator slot and a first insulator or a second insulator corresponding to the missing insulator slot.

Description

Wire and cable safety state assessment method and system based on data processing

Technical Field

The present invention relates to data processing technologies, and in particular, to a method and a system for evaluating a security state of a cable based on data processing.

Background

The electric wire and cable is an indispensable conductive material for life electricity, brings great convenience to the electricity transmission of life and industrial production, and the safety state of the electric wire and cable is closely related to the electricity transmission condition.

Because the electric wires and cables usually run outdoors, when typhoons or abnormal weather are encountered, the situation that the insulator on the cable tower is in a string falling state can be caused, so that the safety state of the electric wires and cables, especially the V-shaped insulator string, can be further influenced, and the V-shaped insulator string can be more easily in a string falling state under the influence of strong wind force or external force.

Therefore, how to effectively monitor the string dropping condition of the V-shaped insulator string, so that the string dropping condition of the V-shaped insulator string can be found in time, and the harm of the insulator string dropping to the electric wires and cables is reduced.

Disclosure of Invention

The embodiment of the invention provides a wire and cable safety state evaluation method and system based on data processing, which can effectively monitor the string dropping condition of a V-shaped insulator string, so that the string dropping condition of the V-shaped insulator string can be timely found, and the damage of the insulator string dropping to wires and cables is reduced.

In a first aspect of the embodiment of the present invention, a method for evaluating a security state of a wire and cable based on data processing is provided, including:

the method comprises the steps of obtaining wind power levels of monitoring areas in a historical time period, marking the monitoring areas with the wind power levels larger than a preset level as target areas, obtaining historical tension values monitored by tension sensors at the V-shaped insulator strings in the target areas, and determining a first V-shaped insulator string and a preset collecting position corresponding to the first V-shaped insulator string according to comparison results of the preset tension values and the historical tension values;

the control unmanned aerial vehicle acquires a first evaluation image corresponding to a first V-shaped insulator string based on the preset acquisition position, acquires the number of insulators in the first evaluation image, determines abnormal insulator strings according to the number of insulators and the number of standard insulators, and determines the corresponding first evaluation image as an abnormal image;

acquiring a first number of each insulator corresponding to an abnormal insulator string in an abnormal image and a spacing distance between adjacent insulators, classifying the abnormal insulator strings according to an insulator string division strategy and the spacing distance to obtain one type of insulator strings or two types of insulator strings, and updating the first number according to the one type of insulator strings or the two types of insulator strings to obtain a second number corresponding to each insulator in the abnormal insulator strings;

A preset slot position template corresponding to the abnormal insulator string is called, slot position numbers corresponding to all slots in the preset slot position template are obtained, and second numbers corresponding to all insulators in the abnormal insulator string and the slot position numbers are corresponding to each other, so that insulator slot positions corresponding to all insulators in the abnormal insulator string in the preset slot position template are obtained;

determining a missing insulator slot corresponding to a preset slot template and a first type insulator or a second type insulator corresponding to the missing insulator slot based on the insulator slot, wherein the size of the first type insulator is larger than that of the second type insulator, and sending the missing insulator slot and the first type insulator or the second type insulator corresponding to each missing insulator slot to a management end.

Optionally, in one possible implementation manner of the first aspect, acquiring the number of insulators in the first evaluation image, determining an abnormal insulator string according to the number of insulators and the number of standard insulators, and determining the corresponding first evaluation image as an abnormal image, including:

determining pixel points of pixel values in a preset pixel value interval corresponding to an insulator in the first evaluation image as first pixel points, acquiring adjacent first pixel points to generate a first pixel point set, and extracting an insulator contour corresponding to the first pixel point set;

Counting the number of the outlines of the insulators on the two V-shaped sides of the V-shaped insulator string to obtain the corresponding number of first insulators on each V-shaped side of the V-shaped insulator string;

when the number of the first insulators on any V-shaped edge is not equal to the number of the standard insulators, determining that the insulator string on the corresponding V-shaped edge is an abnormal insulator string, and determining that the corresponding first evaluation image is an abnormal image.

Optionally, in one possible implementation manner of the first aspect, a first number of each insulator corresponding to an abnormal insulator string in the abnormal image and a spacing distance between adjacent insulators are obtained, and the abnormal insulator string is classified according to an insulator string division policy and the spacing distance, so as to obtain a class of insulator strings or a class of insulator strings, including:

numbering the insulators in the abnormal insulator string according to the arrangement sequence of the insulators in the first direction to obtain a first number corresponding to each insulator in the abnormal insulator string;

acquiring reference points corresponding to insulators in the abnormal insulator string corresponding to the abnormal image, and obtaining the distance between adjacent insulators in the abnormal insulator string according to the relative distance between the adjacent reference points;

Obtaining a first distance difference value according to the absolute value of the distance and the standard distance difference value, and classifying the corresponding abnormal insulator strings into one type of insulator strings if all the first distance difference values are in a preset difference value interval;

if the first distance difference value is not in the preset difference value interval, classifying the corresponding abnormal insulator strings into two types of insulator strings.

Optionally, in one possible implementation manner of the first aspect, acquiring a reference point corresponding to each insulator in the abnormal insulator string corresponding to the abnormal image, and obtaining a distance between adjacent insulators in the abnormal insulator string according to a relative distance between adjacent reference points, where the distance includes:

determining the longest contour line corresponding to each insulator in the abnormal insulator string, and acquiring the center point of the longest contour line as a reference point corresponding to each insulator;

and connecting adjacent reference points to obtain a reference line, and obtaining the distance between adjacent insulators in the abnormal insulator string according to the length of the line segment of the reference line.

Optionally, in one possible implementation manner of the first aspect, updating the first number according to the first type of insulator string or the second type of insulator string to obtain a second number corresponding to each insulator in the abnormal insulator string includes:

Acquiring a judgment distance between a first insulator of the first insulator string or the second insulator string in the first direction and a pressing plate, and acquiring a second distance difference value according to the judgment distance and the absolute value of a standard distance difference value;

updating the first numbers corresponding to the insulators in the insulator strings according to a type of updating strategy and the comparison result of the second distance difference value and the preset difference value interval to obtain the second numbers corresponding to the insulators in the abnormal insulator strings;

and updating the first numbers corresponding to the insulators in the two types of insulator strings according to the two types of updating strategies and the comparison result of the second distance difference value and the preset difference value interval to obtain the second numbers corresponding to the insulators in the abnormal insulator strings.

Optionally, in one possible implementation manner of the first aspect, updating the first number corresponding to each insulator in the insulator string according to a class of updating policy and a comparison result between the second distance difference value and the preset difference value interval to obtain the second number corresponding to each insulator in the abnormal insulator string, including:

if the second distance difference value is in the preset difference value interval, taking the first number corresponding to each insulator in the insulator string as the second number corresponding to the corresponding insulator in the abnormal insulator string;

If the second distance difference value is not in the preset difference value interval, a first interval number is obtained according to the ratio of the first judgment distance to the standard distance;

updating the first numbers corresponding to the first insulators according to the first interval number to obtain the second numbers corresponding to the first insulators, and updating the first numbers corresponding to other insulators on one type of insulator string based on the second numbers corresponding to the first insulators to obtain the second numbers corresponding to the insulators in the abnormal insulator string.

Optionally, in one possible implementation manner of the first aspect, updating the first number corresponding to each insulator in the two kinds of insulator strings according to a second kind of updating policy and a comparison result between the second distance difference value and the preset difference value interval to obtain a second number corresponding to each insulator in the abnormal insulator string, where the updating includes:

updating a first number corresponding to a first insulator in the two-type insulator strings according to the comparison result of the second distance difference value and the preset difference value interval to obtain a second number corresponding to the first insulator in the two-type insulator strings;

acquiring a first distance difference value corresponding to a first insulator and a second insulator in the two-type insulator strings, and updating a first number corresponding to the second insulator according to a second number corresponding to the first insulator in the two-type insulator strings if the first distance difference value is in a preset difference value interval, so as to acquire a second number corresponding to the second insulator in the two-type insulator strings;

If the first distance difference value is not in the preset difference value interval, acquiring the distance between the first insulator and the second insulator in the two insulator strings as an abnormal distance, and acquiring a second interval number according to the ratio of the abnormal distance to the standard distance;

summing the second interval number and a second number corresponding to a first insulator in the two-class insulator string to obtain a second number corresponding to a second insulator in the two-class insulator string;

continuously acquiring a first distance difference value corresponding to a second insulator and a third insulator in the two-type insulator strings based on the steps, and updating a first number corresponding to the third insulator according to a comparison result of the first distance difference value and a preset distance difference value interval and a second number corresponding to the second insulator in the two-type insulator strings to obtain a second number corresponding to the third insulator in the two-type insulator strings;

repeating the steps until the second numbers corresponding to all insulators in the second-class insulator strings are obtained, stopping updating, and obtaining the second numbers corresponding to the insulators in the abnormal insulator strings.

Optionally, in one possible implementation manner of the first aspect, updating the first number corresponding to the first insulator in the second type of insulator string according to the comparison result of the second distance difference value and the preset difference value interval to obtain the second number corresponding to the first insulator in the second type of insulator string includes:

If the second distance difference value is in the preset difference value interval, taking a first number corresponding to a first insulator in the two kinds of insulator strings as a second number;

and if the second distance difference value is not in the preset difference value interval, obtaining a second interval number according to the ratio of the second judgment distance to the standard distance, and updating the first number corresponding to the first insulator in the two-type insulator string according to the second interval number to obtain a second number corresponding to the first insulator in the two-type insulator string.

Optionally, in one possible implementation manner of the first aspect, determining, based on the insulator slot, a missing insulator slot corresponding to a preset slot template, and a type of insulator or a type of insulator corresponding to the missing insulator slot, includes:

obtaining the types of insulators corresponding to all slots in a preset slot template, and determining one type of insulators or two types of insulators corresponding to the missing insulator slots according to the types of insulators corresponding to all slots and the missing insulator slots;

wherein the insulator types include a type of insulator and a type of insulator.

In a second aspect of the embodiment of the present invention, there is provided a system for evaluating a security state of a wire and cable based on data processing, including:

The monitoring module is used for acquiring the wind power level of each monitoring area in the historical time period, marking the monitoring area with the wind power level larger than the preset level as a target area, acquiring the historical tension value monitored by the tension sensor at each V-shaped insulator string in the target area, and determining a first V-shaped insulator string and a preset acquisition position corresponding to the first V-shaped insulator string according to the comparison result of the preset tension value and the historical tension value;

the evaluation module is used for controlling the unmanned aerial vehicle to acquire a first evaluation image corresponding to a first V-shaped insulator string based on the preset acquisition position, acquiring the number of insulators in the first evaluation image, determining an abnormal insulator string according to the number of insulators and the number of standard insulators, and determining the corresponding first evaluation image as an abnormal image;

the updating module is used for acquiring a first number of each insulator corresponding to the abnormal insulator string in the abnormal image and the interval distance between adjacent insulators, classifying the abnormal insulator strings according to an insulator string division strategy and the interval distance to obtain one type of insulator strings or two types of insulator strings, and updating the first number according to the one type of insulator strings or the two types of insulator strings to obtain a second number corresponding to each insulator in the abnormal insulator strings;

The corresponding module is used for calling a preset slot position template corresponding to the abnormal insulator string, obtaining slot position numbers corresponding to each slot position in the preset slot position template, and corresponding the second numbers corresponding to each insulator in the abnormal insulator string and the slot position numbers to obtain corresponding insulator slot positions of each insulator in the abnormal insulator string in the preset slot position template;

the management module is used for determining a missing insulator slot corresponding to the preset slot template and one type of insulator or two types of insulator corresponding to the missing insulator slot based on the insulator slot, wherein the size of the one type of insulator is larger than that of the two types of insulator, and the missing insulator slot and one type of insulator or two types of insulator corresponding to each missing insulator slot are sent to the management end.

The beneficial effects of the invention are as follows:

1. the invention can effectively monitor the string dropping condition of the V-shaped insulator string, and can obtain the specific position and type of the dropped insulator in the V-shaped insulator string, thereby enabling a management end to make corresponding treatment measures and reducing the damage of the dropped insulator to wires and cables. Specifically, the method and the device control the unmanned aerial vehicle to go to the historical tension value of the tension sensor in the target area to acquire images, judge whether the corresponding V-shaped insulator string drops according to the acquired first evaluation image, update the first serial number corresponding to the corresponding V-shaped insulator string to obtain the second serial number when the corresponding V-shaped insulator string drops, find the corresponding missing insulator slot position of the dropped insulator in the preset slot position template according to the updated second serial number and the serial number corresponding to each slot position in the preset slot position template, and determine the specific position and the specific type of the dropped insulator according to the missing insulator slot position and the type of the insulator corresponding to the missing insulator, so that the specific position and the specific type of the dropped insulator in the V-shaped insulator string with the drop can be determined to assist staff in judging the maintenance material and the maintenance position to be carried, thereby making a relatively attached maintenance plan and improving the maintenance efficiency.

2. When the unmanned aerial vehicle is controlled to go to the target area and the abnormal V-shaped insulator string occurs in the historical tension value of the tension sensor in the target area to perform image acquisition, the initial abnormal acquisition screening is performed according to the wind power level corresponding to each monitoring area, the monitoring area with the wind power level larger than the preset level is used as the target area, then the secondary abnormal acquisition screening is performed on the V-shaped insulator string in the target area according to the historical tension value of the tension sensor corresponding to each V-shaped insulator string in the target area, the first V-shaped insulator string with the historical tension value larger than the preset tension value is obtained as the first V-shaped insulator string needing abnormal acquisition, and then the unmanned aerial vehicle is controlled to perform corresponding image acquisition on the first V-shaped insulator string, so that the data quantity of the unmanned aerial vehicle during image acquisition can be correspondingly reduced, and the V-shaped insulator string with the string falling can be found in time.

3. When the specific positions and types of the falling insulators in the abnormal insulator strings of the falling strings are determined, whether the falling strings occur or not is judged according to the difference between the distance between adjacent insulators in the abnormal insulator strings and the standard distance, if the falling strings do not occur between the adjacent insulators, the adjacent insulators are classified into the insulator strings of which the beginning and/or the end fall strings, if the falling strings occur between the adjacent insulators, the adjacent insulators are classified into the insulator strings of which the middle fall strings or the middle and the beginning and/or the end fall strings, initial numbering is carried out for each insulator in the insulator strings and the insulator strings of which the beginning and/or the end fall strings, then the initial numbering corresponding to each insulator in the insulator strings and the insulator strings of which the beginning number is different is updated through different numbering updating strategies, so that the updated numbering can correspond to the numbering corresponding to each groove position in a preset groove template corresponding to the abnormal insulator string, and the numbering corresponding to each groove in the preset groove template corresponding to the insulator string can be updated differently according to the different numbering corresponding to the insulator string of which the insulator string corresponds to the insulator string of which the beginning and the insulator string corresponds to the insulator string of which the corresponding to the corresponding groove position in the insulator string of which the insulator string has the original serial number corresponds to the original groove. When the number is updated, the invention can update the numbers in sequence according to the sequence of the numbers, thereby preventing the number behind the number from influencing the number updated in the front and improving the accuracy of the number updating. In addition, the invention sets the corresponding insulator types for the plurality of slots in the preset slot template in advance, so that after the corresponding missing insulator slots of the dropped insulator in the preset slot template are obtained, the corresponding insulator types can be obtained, the specific positions and types of the dropped insulator can be sent to the management end, the staff can make corresponding treatment measures, and the damage of the dropped insulator to the electric wires and cables can be reduced.

Drawings

Fig. 1 is a schematic flow chart of a method for evaluating a safety state of a wire and a cable based on data processing according to an embodiment of the present invention;

fig. 2 is a schematic number diagram of an abnormal insulator string according to an embodiment of the present invention when an insulator is not dropped;

fig. 3 is a schematic numbering diagram of an insulator in an insulator string according to an embodiment of the present invention when a drop position of the insulator is an end position;

fig. 4 is a schematic numbering diagram of an insulator in an insulator string according to an embodiment of the present invention when a drop position of the insulator is a beginning position;

fig. 5 is a schematic numbering diagram of the falling positions of insulators in the two types of insulator strings provided by the embodiment of the present invention when the falling positions are the beginning positions and the middle positions;

fig. 6 is a schematic structural diagram of a system for evaluating the safety state of a wire and a cable based on data processing according to an embodiment of the present invention;

fig. 7 is a schematic hardware structure of an electronic device according to an embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In practical application, the V-shaped insulator string comprises left and right insulator strings and pressing plates connected with the insulator strings, and when the insulators on the left and right sides of the V-shaped insulator string fall off, the structure of an overhead transmission line is likely to be damaged, the line is insulated, the overhead transmission line is enabled to lose power transmission capacity, and power supply interruption is caused. Therefore, each V-shaped insulator string in the target area is monitored, when the tension sensor corresponding to the V-shaped insulator string is abnormal, the application can control the unmanned aerial vehicle to go to the corresponding position point to collect images of the abnormal V-shaped insulator string, judge whether the corresponding V-shaped insulator string drops or not according to the collected images, and acquire the position and type of the insulator with the dropped V-shaped insulator string to upload to the management end, so that the management end can process the corresponding insulator at the follow-up time to reduce the damage of the wire and cable caused by the dropped insulator string.

Referring to fig. 1, a flow chart of a method for evaluating a security state of a cable and a wire based on data processing according to an embodiment of the present application is shown, and an execution subject of the method shown in fig. 1 may be a software and/or hardware device. The execution body of the present application may include, but is not limited to, at least one of: user equipment, network equipment, etc. The user equipment may include, but is not limited to, computers, smart phones, personal digital assistants (Personal Digital Assistant, abbreviated as PDA), and the above-mentioned electronic devices. The network device may include, but is not limited to, a single network server, a server group of multiple network servers, or a cloud of a large number of computers or network servers based on cloud computing, where cloud computing is one of distributed computing, and a super virtual computer consisting of a group of loosely coupled computers. This embodiment is not limited thereto. The method comprises the steps S1 to S5, and specifically comprises the following steps:

S1, acquiring wind power levels of monitoring areas in a historical time period, marking the monitoring areas with the wind power levels larger than a preset level as target areas, acquiring historical tension values monitored by tension sensors at the positions of V-shaped insulator strings in the target areas, and determining a first V-shaped insulator string and a preset acquisition position corresponding to the first V-shaped insulator string according to comparison results of the preset tension values and the historical tension values.

In practical application, because the electric wires and cables usually run outdoors, when encountering heavy wind, the V-shaped insulator strings on the cable towers can be subjected to the problem of falling strings, so that the normal operation of the electric wires and cables is affected.

Therefore, the monitoring area with the wind power level larger than the preset level is obtained as the target area according to the wind power level of each monitoring area in the historical time period, and the larger the wind power level is, the more likely the V-shaped insulator strings in the corresponding monitoring area are to be dropped, so that the method can perform primary abnormal acquisition screening according to the wind power level corresponding to each monitoring area, then perform secondary abnormal acquisition screening on the V-shaped insulator strings in the target area according to the historical tension value of the tension sensor corresponding to each V-shaped insulator string in the target area, obtain the first V-shaped insulator string with the historical tension value larger than the preset tension value as the first V-shaped insulator string needing abnormal acquisition, and subsequently control the unmanned aerial vehicle to perform image acquisition on the corresponding first V-shaped insulator string, and judge whether the corresponding first V-shaped insulator string drops or not according to the acquired image.

It is worth mentioning that the staff can all set up corresponding and predetermine the acquisition position for every V-arrangement insulator chain in advance, and when finding that the history pulling force value of the tension sensor that a certain V-arrangement insulator chain corresponds appears unusual, the history pulling force value is greater than and predetermines the pulling force value promptly, alright control unmanned aerial vehicle to go to corresponding and predetermine the acquisition position and carry out image acquisition to corresponding V-arrangement insulator chain, parameters such as shooting direction and distance when gathering also can be set up in advance.

S2, the unmanned aerial vehicle is controlled to acquire a first evaluation image corresponding to the first V-shaped insulator string based on the preset acquisition position, the number of insulators in the first evaluation image is acquired, abnormal insulator strings are determined according to the number of insulators and the number of standard insulators, and the corresponding first evaluation image is determined to be an abnormal image.

After the first V-shaped insulator strings are obtained, the unmanned aerial vehicle is controlled to go to the corresponding preset collecting positions to collect images of the corresponding first V-shaped insulator strings, a first evaluation image is obtained, the number of insulators on each V-shaped edge of the first V-shaped insulator strings in the first evaluation image is obtained, when the number of insulators is smaller than the number of standard insulators, the situation that the corresponding first V-shaped insulator strings possibly fall off is indicated, the situation that the corresponding first V-shaped insulator strings are abnormal insulator strings can be determined, and the corresponding first evaluation image is an abnormal image is determined.

In some embodiments, the anomalous insulator string and the anomalous image corresponding to the anomalous insulator string may be determined by:

s21, determining pixel points, of which the pixel values are in a preset pixel value interval corresponding to an insulator, in the first evaluation image as first pixel points, acquiring adjacent first pixel points to generate a first pixel point set, and extracting an insulator contour corresponding to the first pixel point set.

The preset pixel interval can be preset according to a pixel value interval corresponding to an insulator in the V-shaped insulator string.

When the insulator contour corresponding to the first pixel point set is extracted, a contour extraction technology in the prior art can be adopted to extract the insulator contour corresponding to the first pixel point set, for example, the insulator contour corresponding to the first pixel point set can be extracted through a binary image edge detection mode.

S22, counting the number of the outlines of the insulators on the two V-shaped sides of the V-shaped insulator string to obtain the corresponding number of the first insulators on each V-shaped side of the V-shaped insulator string.

It will be appreciated that, since the insulators on the V-shaped insulator string are generally mounted at a certain distance, the obtained insulator profiles are generally not close together, and thus, after a plurality of insulator profiles are obtained, the number of insulator profiles on two V-shaped sides of the V-shaped insulator string can be counted to obtain the corresponding number of first insulators on each V-shaped side of the V-shaped insulator string.

S23, when the number of the first insulators on any V-shaped edge is not equal to the number of the standard insulators, determining that the insulator string on the corresponding V-shaped edge is an abnormal insulator string, and determining that the corresponding first evaluation image is an abnormal image.

When the number of the first insulators on any V-shaped side is not equal to the number of the standard insulators, the situation that the insulator strings on the corresponding V-shaped side are likely to be dropped is indicated, so that the insulator strings on the corresponding V-shaped side can be determined to be abnormal insulator strings, and the corresponding first evaluation image can be determined to be an abnormal image.

By the method, large-scale image acquisition of all V-shaped insulator strings in the target area is not needed, the data size during image acquisition can be correspondingly reduced, and the V-shaped insulator strings with strings falling can be found in time.

S3, acquiring a first number of each insulator corresponding to an abnormal insulator string in the abnormal image and the interval distance between adjacent insulators, classifying the abnormal insulator strings according to an insulator string division strategy and the interval distance to obtain one type of insulator strings or two types of insulator strings, and updating the first number according to the one type of insulator strings or the two types of insulator strings to obtain a second number corresponding to each insulator in the abnormal insulator strings.

After an abnormal insulator string and an abnormal image corresponding to the abnormal insulator string are obtained, numbering is carried out on each insulator in the abnormal insulator string to obtain a first number corresponding to each insulator, the abnormal insulator string is classified into one type of insulator string or two types of insulator string according to the interval distance between adjacent insulators, and then the first number is updated according to the one type of insulator string or the two types of insulator string to obtain a second number corresponding to each insulator in the abnormal insulator string.

It will be appreciated that, in the present invention, a preset slot template corresponding to each V-shaped insulator string is provided in advance, and the preset slot template will be mentioned hereinafter, and will be described herein for corresponding description, so that an introduction will be made on the preset slot template, where the preset slot template includes a slot corresponding to each insulator in the corresponding V-shaped insulator string, and numbers between the slots and the insulators are in one-to-one correspondence, for example, if the number corresponding to the insulator is 1, the number corresponding to the corresponding slot may also be set to 1.

When the V-shaped insulator string falls, the falling insulator can be the insulator positioned at the beginning position and the ending position or the insulator positioned at the middle position, so that the actual number of the falling insulator is corresponding to the corresponding slot position in the preset slot position template to obtain the specific position and type of the falling insulator.

One type of insulator string refers to a falling insulator at the beginning and/or end, and may be several falling insulators at the beginning and/or end, where, for example, if the original insulator string has ten insulators in total, the falling insulators may be the first and second insulators at the beginning.

The second type of insulator string refers to an insulator that is dropped, and may be an insulator that is located in a middle position, or may be an insulator that is located in a middle position and at a beginning and/or end position. For example, if the original string of insulators has ten insulators in total, the dropped insulator may be the third insulator, or the first and fourth insulators.

Based on the above embodiment, the specific implementation manner of obtaining the first class of insulator strings or the second class of insulator strings in step S3 may be:

s31, numbering the insulators in the abnormal insulator string according to the arrangement sequence of the insulators in the first direction, and obtaining a first number corresponding to each insulator in the abnormal insulator string.

The first direction may be a direction parallel to the V-shaped edge of the V-shaped string, such as in fig. 1, and may be a direction parallel to the V-shaped edge of the right side of the V-shaped string, such as a direction from platen 1 to platen 2, or a direction from platen 2 to platen 1, if the string of insulators on the right side of the V-shaped string is broken.

It should be noted that, since the number of each slot in the preset slot template corresponds to the number corresponding to each insulator in the insulator string on the original perfect V-shaped edge, when the current number is performed, if the number corresponding to each insulator in the insulator string on the original perfect V-shaped edge is numbered from the direction from the pressing plate 1 to the pressing plate 2, the current number also needs to be numbered from the same direction.

For example, if the insulators in the insulator string on the V-shaped edge that is originally intact are numbered sequentially from 1 in the direction from the press plate 1 to the press plate 2, then when numbering is performed at present, each insulator in the abnormal insulator string needs to be numbered from 1 in the same direction, so that after updating the first number corresponding to each insulator in the abnormal insulator string, the updated second number can be corresponding to the corresponding slot position in the preset slot position template.

S32, acquiring reference points corresponding to insulators in the abnormal insulator string corresponding to the abnormal image, and obtaining the distance between adjacent insulators in the abnormal insulator string according to the relative distance between the adjacent reference points.

After numbering the insulators in the abnormal insulator string to obtain a first number corresponding to each insulator, the invention can continuously acquire the distance between adjacent insulators.

Specifically, step S32 includes steps S321 to S322:

s321, determining the longest contour line corresponding to each insulator in the abnormal insulator string, and acquiring the center point of the longest contour line as a reference point corresponding to each insulator.

In some embodiments, the longest contour corresponding to each insulator in the anomalous insulator string may be determined by:

and carrying out coordinated processing on the abnormal image, establishing an x coordinate axis on the basis of being parallel to the V-shaped edge corresponding to the abnormal insulator string, and establishing a y coordinate axis on the basis of being perpendicular to the V-shaped edge corresponding to the abnormal insulator string.

And acquiring a maximum y-axis coordinate value and a minimum y-axis coordinate value in profile coordinates corresponding to each insulator in the abnormal insulator string, acquiring coordinate points corresponding to the maximum y-axis coordinate values in all the profile coordinates as maximum coordinate points, and connecting the maximum coordinate points and the minimum coordinate points to obtain the longest profile line corresponding to each insulator, wherein the coordinate points corresponding to the minimum y-axis coordinate values in all the profile coordinates are used as minimum coordinate points.

The contour coordinates corresponding to each insulator in the abnormal insulator string are the outermost contour coordinates corresponding to each insulator, and if there are a plurality of coordinate points corresponding to the maximum y-axis coordinate values, the average value of the coordinate points corresponding to the maximum y-axis coordinate values may be taken when the x-coordinate values corresponding to the maximum coordinate points are obtained, and similarly, if there are a plurality of coordinate points corresponding to the minimum y-axis coordinate values, the average value of the coordinate points corresponding to the minimum y-axis coordinate values may be taken when the x-coordinate values corresponding to the minimum coordinate points are obtained.

After the longest contour line corresponding to each insulator is obtained in the above manner, the center point of the longest contour line can be used as the reference point corresponding to the corresponding insulator.

S322, connecting adjacent datum points to obtain a datum line, and obtaining the distance between adjacent insulators in the abnormal insulator string according to the length of the line segment of the datum line.

After the datum points are obtained, the distance between the adjacent insulators can be obtained according to the distance between the two adjacent datum points, namely, the distance between the adjacent insulators can be obtained through the line segment length of the datum line corresponding to the adjacent datum points.

S33, obtaining a first distance difference value according to the absolute value of the distance and the standard distance difference value, and classifying the corresponding abnormal insulator strings into one type of insulator string if all the first distance difference values are in a preset difference value interval.

The standard distance may be a standard distance between adjacent insulators set in advance, if all the first distance differences are within a preset difference interval, which indicates that the distance between all the adjacent insulators in the abnormal insulator string is normal, but the insulator in the abnormal insulator string is dropped, in this case, it is likely that the insulator at the beginning and/or end positions is dropped, so that the abnormal insulator string in this case may be used as a type of insulator string.

S34, if the first distance difference value is not in the preset difference value interval, classifying the corresponding abnormal insulator string into two types of insulator strings.

If the first distance difference is not within the preset difference interval, it is indicated that the distance between adjacent insulators is abnormal, in this case, it is highly likely that the insulator between the adjacent insulators is dropped, so that the distance between the adjacent insulators is changed, and therefore, the abnormal insulator string in this case can be used as the second type insulator string.

After obtaining one type of insulator string or two types of insulator strings, the invention further updates the first numbers according to the one type of insulator string or the two types of insulator strings to obtain second numbers corresponding to each insulator in the abnormal insulator string, through the following steps:

s35, acquiring a judgment distance between the first insulator of the first insulator string or the second insulator string and the pressing plate in the first direction, and acquiring a second distance difference value according to the absolute value of the judgment distance and the standard distance difference value.

When the first serial number corresponding to each insulator in the abnormal insulator string is updated, the first serial number corresponding to each insulator is updated sequentially from the first insulator in the first direction. Since the numbers are sequentially arranged, the front number affects the rear number, and thus the invention sequentially updates the first numbers corresponding to the insulators in the first direction.

It can be understood that if one type of insulator or the first insulator of the two types of insulators in the first direction drops, the distance between the one type of insulator or the first insulator of the two types of insulators in the first direction and the pressing plate may also change, so that the invention firstly obtains the judgment distance between the one type of insulator string or the first insulator of the two types of insulators in the first direction and the pressing plate, then judges whether the one type of insulators or the first insulator of the two types of insulators in the first direction drops according to the judgment distance, and then updates the first number corresponding to the corresponding insulator according to the dropping condition.

Specifically, the method and the device can obtain a second distance difference value by adopting the absolute value of the judging distance and the standard distance difference value, and then judge whether the insulator string or the first insulator of the insulator string in the first direction falls or not according to the second distance difference value.

S36, updating the first numbers corresponding to the insulators in the insulator strings according to a type of updating strategy and the comparison result of the second distance difference value and the preset difference value interval, and obtaining the second numbers corresponding to the insulators in the abnormal insulator strings.

When updating the first numbers corresponding to the insulators in the insulator strings, the invention updates the first numbers corresponding to the insulators in the abnormal insulator strings by adopting a type of updating strategy and the comparison result of the second distance difference value and the preset difference value interval.

The specific implementation manner of step S36 based on the above embodiment may be:

s361, if the second distance difference value is in the preset difference value interval, the first number corresponding to each insulator in the insulator string is used as the second number corresponding to the corresponding insulator in the abnormal insulator string.

Referring to fig. 2 and fig. 3, fig. 2 is a schematic diagram of numbers when the insulators in the abnormal insulator string provided by the embodiment of the present invention do not fall, and fig. 3 is a schematic diagram of numbers when the falling positions of the insulators in the type of insulator string provided by the embodiment of the present invention are the ending positions, it can be seen from fig. 3 that, if the second distance difference value is within the preset difference value interval, that is, if the insulators at the beginning positions do not fall, the first numbers corresponding to the insulators in the type of insulator string are numbers corresponding to the insulators in the original V-shaped insulator string, so that the first numbers corresponding to the insulators in the type of insulator string can be directly used as the second numbers corresponding to the corresponding insulators in the abnormal insulator string.

S362, if the second distance difference is not within the preset difference interval, obtaining a first interval number according to the ratio of the first judgment distance to the standard distance.

Referring to fig. 4, a schematic numbering diagram of an insulator in an insulator string according to an embodiment of the present invention when a drop position of the insulator is a start position is shown. As can be seen from fig. 4, if the second distance difference is not within the preset difference interval, it is indicated that the insulator at the beginning is likely to fall, in this case, the first number of the insulator in the type of insulator string is not corresponding to the number corresponding to each insulator in the original V-shaped insulator string.

Therefore, in such a case as described above, it is necessary to judge that several insulators have fallen at the beginning, and then to update the first number of each insulator in one type of insulator accordingly.

It should be noted that, in the present invention, the distance between the first insulator at two ends of the insulator string and the pressing plate is equal to the standard distance, and the pressing plate refers to the pressing plate of the pressing ring.

For example, if the first judgment distance is 8cm and the standard distance is 4cm, the first interval number is 2.

S363, updating the first numbers corresponding to the first insulators according to the first interval number to obtain the second numbers corresponding to the first insulators, and updating the first numbers corresponding to other insulators on one type of insulator string based on the second numbers corresponding to the first insulators to obtain the second numbers corresponding to the insulators in the abnormal insulator string.

It can be understood that when the first interval number is 2, it indicates that there are two sections of separation distances between the first insulator and the pressing plate in the abnormal insulator string, that is, 1 insulator falls between them, and when this time, the first interval number just corresponds to the original number of the first insulator in the abnormal insulator string, so that the first number corresponding to the first insulator can be updated through the first interval number to obtain the second number corresponding to the first insulator.

And S37, updating the first numbers corresponding to the insulators in the two-class insulator strings according to a two-class updating strategy and the comparison result of the second distance difference value and the preset difference value interval, so as to obtain the second numbers corresponding to the insulators in the abnormal insulator strings.

When updating the first numbers corresponding to the insulators in the two-class insulator strings, the invention updates the first numbers corresponding to the insulators in the abnormal insulator strings by adopting a two-class updating strategy and a comparison result of the second distance difference value and a preset difference value interval.

The specific implementation manner of step S37 based on the above embodiment may be:

s371, updating a first number corresponding to a first insulator in the two-type insulator string according to the comparison result of the second distance difference value and the preset difference value interval, and obtaining a second number corresponding to the first insulator in the two-type insulator string.

Referring to fig. 5, a schematic numbering diagram of the falling positions of insulators in the two kinds of insulator strings provided by the embodiment of the invention are the beginning positions and the middle positions. As can be seen from fig. 5, when the positions of the insulators in the two kinds of insulator strings at which the insulators fall have the beginning positions and the middle positions, the first numbers corresponding to the insulators in the two kinds of insulators are different from the original corresponding numbers, so that when the first numbers corresponding to the insulators in the two kinds of insulator strings are updated, it is determined whether the first insulator falls or not, and it is also determined whether the insulators fall or not between the adjacent insulators.

Specifically, in some embodiments, the first number corresponding to the first insulator in the second insulator string may be updated by:

and if the second distance difference value is in the preset difference value interval, taking a first number corresponding to a first insulator in the two kinds of insulator strings as a second number.

If the second distance difference is within the preset difference interval, the first number corresponding to the first insulator in the second insulator string is the original corresponding number, so that the first number corresponding to the first insulator can be used as the second number.

If the second distance difference is not within the preset difference interval, it is indicated that the insulator at the beginning position in the second type of insulator string is likely to fall, so that in this case, it needs to be determined that several insulators fall, and then the first number of the first insulator in the second type of insulator string is updated according to the number of the fallen insulators, where the manner of updating the first number is similar to the manner of updating the first number corresponding to the first insulator according to the number of the first intervals in S363, and details are not repeated herein.

S372, acquiring a first distance difference value corresponding to a first insulator and a second insulator in the two-type insulator strings, and if the first distance difference value is in a preset difference value interval, updating a first number corresponding to the second insulator according to a second number corresponding to the first insulator in the two-type insulator strings to acquire a second number corresponding to the second insulator in the two-type insulator strings.

After updating a first number corresponding to a first insulator in the two kinds of insulator strings, judging whether the insulator falls down or not exists between adjacent insulators, and judging the insulator according to a first distance difference value between the adjacent insulators.

Specifically, the invention obtains a first distance difference value corresponding to a first insulator and a second insulator in the two insulator strings, and if the first distance difference value is within a preset difference value interval, it is indicated that no insulator falls between the first insulator and the second insulator, so that a first number of the second insulator can be correspondingly updated according to a second number updated by the first insulator, for example, the second number updated by the first insulator is 2, and the second number updated by the second insulator is 3.

And S373, if the first distance difference value is not in the preset difference value interval, acquiring the distance between the first insulator and the second insulator in the two insulator strings as an abnormal distance, and acquiring a second interval number according to the ratio of the abnormal distance to the standard distance.

If the first distance difference value is not in the preset difference value interval, the condition that the insulator possibly falls between the first insulator and the second insulator in the second insulator string is indicated, in this case, the second interval number is obtained according to the ratio of the abnormal distance corresponding to the first insulator and the second insulator to the standard distance, and then the first number corresponding to the second insulator is updated correspondingly according to the second interval number.

And S374, summing the second interval number and a second number corresponding to the first insulator in the second-class insulator string to obtain a second number corresponding to the second insulator in the second-class insulator string.

For example, if the abnormal distance between the first insulator and the second insulator in the second insulator string is 8cm and the standard distance is 4cm, the second interval number is 2, that is, one insulator is dropped between the first insulator and the second insulator, referring to fig. 5, if the second number after the first insulator is updated is 2, the second number after the second insulator is updated is the sum of the second interval number and the second number corresponding to the first insulator in the second insulator string, that is, 4.

S375, continuously obtaining a first distance difference value corresponding to a second insulator and a third insulator in the two-type insulator string based on the steps, and updating a first number corresponding to the third insulator according to a comparison result of the first distance difference value and a preset distance difference value interval and a second number corresponding to the second insulator in the two-type insulator string to obtain a second number corresponding to the third insulator in the two-type insulator string.

The method for updating the first number corresponding to the third insulator in the second insulator string is similar to the method for updating the first number of the second insulator, and will not be described herein.

S376, repeating the steps until the second numbers corresponding to all insulators in the second type of insulator string are obtained, stopping updating, and obtaining the second numbers corresponding to the insulators in the abnormal insulator string.

Through the mode, the numbers corresponding to the insulators in the abnormal insulator string and the slots in the preset slot templates can be obtained, so that the specific positions and types of the missing insulators can be obtained later.

S4, a preset slot position template corresponding to the abnormal insulator string is called, slot position numbers corresponding to all slots in the preset slot position template are obtained, and second numbers corresponding to all insulators in the abnormal insulator string and the slot position numbers are corresponding to each other, so that insulator slots corresponding to all insulators in the abnormal insulator string in the preset slot position template are obtained.

After the second numbers corresponding to the insulators in the abnormal insulator string are obtained, the preset slot position template is called, and the corresponding insulator slots of the insulators in the abnormal insulator string in the preset slot position template are obtained through the preset slot position template.

For example, if the second numbers corresponding to the insulators in the abnormal insulator string are 1, 3, 4, 5 and 6, the corresponding insulators can be corresponding to the slots numbered 1, 3, 4, 5 and 6 in the preset slot templates when corresponding, so as to obtain the corresponding insulator slots of the insulators in the abnormal insulator string in the preset slot templates.

S5, determining a missing insulator slot corresponding to a preset slot template and one type of insulators or two types of insulators corresponding to the missing insulator slot based on the insulator slot, wherein the size of the one type of insulators is larger than that of the two types of insulators, and sending the missing insulator slot and one type of insulators or two types of insulators corresponding to each missing insulator slot to a management end.

After the corresponding insulator slot positions of the insulators in the abnormal insulator string in the preset slot position template are obtained, the missing insulator slot positions corresponding to the missing insulators can be obtained through the insulator slot positions.

For example, if the insulator slots include slots numbered 1, 3, 4, 5, 6, the missing insulator slot is slot numbered 2.

After the missing insulator slot position is obtained, one type of insulator or two types of insulators corresponding to the missing insulator slot position can be obtained by the following modes:

and obtaining the types of insulators corresponding to the slots in the preset slot templates, and determining one type of insulators or two types of insulators corresponding to the missing insulator slots according to the types of insulators corresponding to the slots and the missing insulator slots.

In practical application, the insulators may be installed at intervals according to the sizes of the insulators, so that the pollution amount of the insulators can be reduced, and meanwhile, the creepage distance is increased, so that after the specific positions of the dropped insulators are determined, namely, the positions of the insulators are deleted, the type of the insulators corresponding to the positions of the insulators is determined according to the types of the insulators corresponding to the positions of the insulators, whether the insulators corresponding to the positions of the insulators are of a first type or a second type, then the positions and the types of the insulators corresponding to the positions of the insulators are transmitted to a management end together, and the types of the insulators corresponding to the positions of the insulators can be set in advance.

By the method, the specific position and type of the dropped insulator can be obtained, so that the management end can correspondingly process the insulator in the follow-up process, and the damage of the insulator drop string to the electric wires and cables is reduced.

Referring to fig. 6, a schematic structural diagram of a system for evaluating a safety state of a wire and a cable based on data processing according to an embodiment of the present invention includes:

The apparatus of the embodiment shown in fig. 6 may be correspondingly used to perform the steps in the embodiment of the method shown in fig. 2, and the implementation principle and technical effects are similar, and are not repeated here.

Referring to fig. 7, a schematic hardware structure of an electronic device according to an embodiment of the present invention, where the electronic device 70 includes: a processor 71, a memory 72 and a computer program; wherein the method comprises the steps of

A memory 72 for storing the computer program, which may also be a flash memory (flash). Such as application programs, functional modules, etc. implementing the methods described above.

And a processor 71 for executing the computer program stored in the memory to implement the steps executed by the apparatus in the above method. Reference may be made in particular to the description of the embodiments of the method described above.

Alternatively, the memory 72 may be separate or integrated with the processor 71.

When the memory 72 is a device separate from the processor 71, the apparatus may further include:

a bus 73 for connecting the memory 72 and the processor 71.

The present invention also provides a readable storage medium having stored therein a computer program for implementing the methods provided by the various embodiments described above when executed by a processor.

The readable storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media can be any available media that can be accessed by a general purpose or special purpose computer. For example, a readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium. In the alternative, the readable storage medium may be integral to the processor. The processor and the readable storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short). In addition, the ASIC may reside in a user device. The processor and the readable storage medium may reside as discrete components in a communication device. The readable storage medium may be read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tape, floppy disk, optical data storage device, etc.

The present invention also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the device may read the execution instructions from the readable storage medium, the execution instructions being executed by the at least one processor to cause the device to implement the methods provided by the various embodiments described above.

In the above embodiment of the apparatus, it should be understood that the processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: digital Signal Processor, abbreviated as DSP), application specific integrated circuits (english: application Specific Integrated Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A method for evaluating the safety state of a wire and a cable based on data processing, comprising the steps of:

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

acquiring the number of insulators in the first evaluation image, determining abnormal insulator strings according to the number of insulators and the number of standard insulators, and determining the corresponding first evaluation image as an abnormal image, wherein the method comprises the following steps:

3. The method of claim 2, wherein the step of determining the position of the substrate comprises,

acquiring a first number of each insulator corresponding to an abnormal insulator string in an abnormal image and a spacing distance between adjacent insulators, classifying the abnormal insulator strings according to an insulator string division strategy and the spacing distance to obtain one type of insulator string or two types of insulator strings, wherein the method comprises the following steps:

4. The method of claim 3, wherein the step of,

acquiring reference points corresponding to insulators in the abnormal insulator string corresponding to the abnormal image, and obtaining the distance between adjacent insulators in the abnormal insulator string according to the relative distance between the adjacent reference points, wherein the method comprises the following steps:

5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,

updating the first number according to the first insulator string or the second insulator string to obtain a second number corresponding to each insulator in the abnormal insulator string, including:

6. The method of claim 5, wherein the step of determining the position of the probe is performed,

updating the first numbers corresponding to the insulators in the insulator string according to a type of updating strategy and the comparison result of the second distance difference value and the preset difference value interval to obtain the second numbers corresponding to the insulators in the abnormal insulator string, wherein the updating comprises the following steps:

7. The method of claim 6, wherein the step of providing the first layer comprises,

updating the first numbers corresponding to the insulators in the two kinds of insulator strings according to a second kind of updating strategy and the comparison result of the second distance difference value and the preset difference value interval to obtain the second numbers corresponding to the insulators in the abnormal insulator strings, wherein the updating comprises the following steps:

8. The method of claim 7, wherein the step of determining the position of the probe is performed,

Updating a first number corresponding to a first insulator in the two-type insulator string according to the comparison result of the second distance difference value and the preset difference value interval to obtain a second number corresponding to the first insulator in the two-type insulator string, wherein the updating comprises the following steps:

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

determining a missing insulator slot corresponding to a preset slot template based on the insulator slot, and a type of insulator or a type of insulator corresponding to the missing insulator slot, comprising:

10. A data processing-based wire and cable security state assessment system, comprising: