Method for identifying dangerous area image of urban looped network power supply cable

Abstract

The invention discloses an urban looped network power supply cable dangerous area image identification method, and relates to the field of image data processing, and the method comprises the steps: generating an original image data set corresponding to each cable, judging whether the cable has drooping, falling and breaking through the capturing of the appearance image of the cable, obtaining a first dangerous value, and obtaining a second dangerous value; comparing the first danger value with the first safety value, carrying out dangerous area analysis on the appearance of the line segment of the cable, generating a corresponding application processing instruction, analyzing the installation conditions of the wiring and the interface at the connection part of the cable, judging the connection conditions of the wiring and the interface through the connection pressure value and the displacement deviation, obtaining a second danger value, and sending the second danger value to the cable. And comparing the second danger value with the second safety value, judging whether the installation condition of the cable is within a safety range or not, and generating a corresponding application processing instruction, thereby realizing safety control and monitoring of the dangerous area of the urban looped network power supply cable.

Description

Technical Field

[0001] The present invention relates to the field of image data processing, and more particularly to an image recognition method for dangerous areas of urban ring network power supply cables. Background Art

[0002] The urban ring network power supply cable is a concentrated area of power lines. The current line generally includes cables and column frames. The cables are installed between the column frames to form a cable line network. High-altitude cables are usually exposed to the outdoors and are affected by the external environment and human factors. The cables will be piled up with snow or other objects, causing the cables to sag and fall under the pressure. Human damage will also cause the cables to be pulled and fall off. Moreover, the outdoor environment is relatively complex, which will also corrode and damage the cables, thereby affecting the working condition of the cables.

[0003] In addition, for cables that have been installed and used for a long time, since the cable material itself is heavy, the cable installation connection port will be affected by its own gravity, and the interface connection may even become loose, resulting in unstable contact or transmission data loss and jamming. When the cable is damaged in the working state, it will cause power transmission interruption, and in serious cases, it may cause personal injury, fire and other major safety accidents.

[0004] Application number CN109711368A discloses an image recognition method for dangerous areas of high-altitude cables, which includes the following steps: a binary image acquisition step, a coordinate establishment step, a line segment information extraction step, a line segment information screening step, a valid point calculation step, a valid point clustering step, a clustered point set screening step, a maximum distance calculation step, an intersection area determination step, a line segment information re-extraction step, a line segment information re-screening step, an intersection calculation step, an intersection screening step, a leftmost intersection and a rightmost intersection calculation step, an intersection offset step, and a dangerous area selection step. The present invention only automatically divides and classifies dangerous areas of high-altitude cables, but does not involve the specific installation, use, and connection risks of the cables. Therefore, the present invention designs image monitoring for dangerous areas of cables. Summary of the Invention

[0005] In response to the problems in the existing technology such as the interface shape being damaged and deformed, the cable line sagging and falling, and the interface being loose, the purpose of the present invention is to provide an image recognition method for dangerous areas of urban ring network power supply cables, perform dangerous area analysis on the appearance of the cable line segments, determine whether there is sagging, falling, and breakage, and analyze the installation status of the wiring and interfaces at the cable connection points to determine the connection status of the wiring and interfaces, thereby realizing safe management and monitoring of dangerous areas of urban ring network power supply cables.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for identifying images of dangerous areas of urban ring network power supply cables is applied to the detection and data processing of images of dangerous areas of cables. The method comprises the following steps:

[0008] S1. Obtain image data of cable dangerous areas, capture each cable image separately, and generate the original image data set corresponding to each cable line;

[0009] S2. Based on the original image dataset, determine whether the cable is sagging, falling, or broken by capturing an image of its appearance, obtain a first danger value, compare the first danger value with a first safety value, perform a danger zone analysis on the cable segment appearance, and generate corresponding application processing instructions;

[0010] S3. Analyze the installation status of the wiring and interfaces at the cable connection points based on the original image data set, determine the connection status of the wiring and interfaces through the connection pressure value and the displacement deviation, obtain a second danger value, compare the second danger value with the second safety value, determine whether the installation status of the cable is within a safe range, and generate corresponding application processing instructions.

[0011] Preferably, in the step S1, according to the cable dangerous area image data, the number of cables is set to L, g is the total number of cables captured in the cable dangerous area image data, i is the number of the cables, and 1≤i≤g, then L i Indicates the cable numbered i among g cables;

[0012] Suppose the original image dataset is Q, then Q i represents the original image dataset corresponding to the cable line labeled i;

[0013] Assume the first risk value is WY, then WY i Indicates the first danger value corresponding to the cable numbered i; set the second danger value to WE, then WE i Indicates the second dangerous value corresponding to the cable numbered i; if the first safety value is set to AY, then AY i Indicates the first safety value corresponding to the cable numbered i; set the second safety value to AE, then AE i Indicates the second safety value corresponding to the cable numbered i.

[0014] Preferably, in step S2, the first risk value WY includes a first falling risk value WYX and a first breaking risk value WYD, wherein the first falling risk value WYX is obtained by:

[0015] Step S211: Set the first falling risk value corresponding to the cable numbered i to WYX i , obtain the original image dataset Q i , set the actual center line Rs and standard center line Rb of the cable, represents a random point t on the standard center line Rb in the cable i, Indicates the position point t corresponding to t on the actual center line Rs of the cable i in the vertical direction 、 ;

[0016] Step S212: According to the formula

[0017]

[0018] According to the judgment value Get real-time falling distance Exceeding the safe falling distance The cable line number i is obtained and the obtained cable line number is centrally output;

[0019] in, Indicates the judgment value of the cable marked as i. Indicates the falling distance of the cable marked i. Indicates the set of cable line labels whose real-time falling distance exceeds the safe falling distance;

[0020] Step S213: According to the cable line labels output in step S212, the falling images of the cables with relevant labels are extracted from the original image data set, the falling images of the cables with relevant labels are transmitted together with the labels to the management personnel, and an alarm signal is issued.

[0021] By calculating the deviation distance between the actual cable line and the standard cable line, the real-time falling distance of the cable line is analyzed. Whether it exceeds the safe falling distance , and then evaluate and monitor the safety of the cable sagging and falling.

[0022] Preferably, in step S2, the process of obtaining the first fracture risk value WYD is specifically as follows:

[0023] S221, set the first break risk value corresponding to the cable numbered i to WYD i ;

[0024] In the vertical plane, the upper edge contour line of the cable is SBL and the lower edge contour line is XBL, SBL i The upper edge contour line of the cable marked i, XBL i The lower edge outline of the cable marked i;

[0025] On the upper edge contour line SBL i Select coordinate point , in the vertical direction, at the lower edge contour line XBL i Upper selection and upper edge contour line SBL i The coordinate point of the corresponding position ;

[0026] in, Indicates the position point number on the edge contour line;

[0027] Step S222: According to the formula

[0028]

[0029] By judging the actual contour width value Whether it complies with the standard diameter value range ,Analyze the thickness and deformation degree of the cable with label i, and then obtain whether the cable is broken or damaged;

[0030] in, Indicates the actual outline width of the cable marked i. A set of labels representing damaged cables;

[0031] Step S213: According to the cable line labels output in step S212, images of the cables with relevant labels are extracted from the original image data set, the damaged images of the cables and their labels are transmitted to the management personnel, and an alarm signal is issued.

[0032] By the coordinate points With coordinate points Calculate the distance between the cables and analyze the actual width of the cable profile. and standard diameter value range The corresponding relationship is achieved by monitoring the depression and expansion of the contour line on the cable line, and then obtaining whether the cable line is broken or damaged, thereby realizing the safety protection and real-time monitoring of the cable line.

[0033] Preferably, in the step S3, the second risk value WE i The acquisition process includes the following steps:

[0034] Step S31: extracting pressure image information of the cable connection based on the original image data set, obtaining connection pressure values of the connection and interface, and obtaining an actual pressure index;

[0035] Step S32: extracting displacement image information of the cable connection based on the original image data set, obtaining connection displacement values of the wiring and interface, and obtaining an actual offset index;

[0036] Step S33: Perform a joint analysis on the actual pressure index in step S31 and the actual offset index in step S32 to obtain the installation tightness value of the cable connection and determine whether the connection and interface are loose.

[0037] Step S34: Compare the installation and tightening value of the cable in step S33 with the standard installation value, and generate corresponding application processing instructions.

[0038] Preferably, in step S31, the process of obtaining the actual pressure index of the cable line is specifically as follows:

[0039] Step S311: Get the cable L i Pressure image information of the connection, multiple position points K are selected at the connection i , set the number of selected location points to , v represents the number of the position point, and 1≤v≤ , K i v Indicates the position point marked with v, and sets the real-time pressure value to P i ;

[0040] Step S312: Obtain location point K i v The real-time pressure value P i v , according to the formula

[0041]

[0042] Get the actual pressure index at the connection .

[0043] Preferably, in step S32, the actual offset index is obtained as follows:

[0044] Step S321: Acquire multiple position points K in step S311 i , set the cycle time T, and obtain the cable line L again after the cycle time T i Pressure image information of the connection point, get the position point K i The corresponding position at this time ,but Indicates the position of the point labeled v after the period T;

[0045] Step S322: Get location point K i v The coordinates of , and location points The coordinates of , according to the formula

[0046]

[0047] Get the actual offset index of the connection .

[0048] Preferably, in step S33, the specific process of performing the simultaneous analysis of the actual pressure index and the actual offset index is:

[0049] Get the actual pressure index of each cable line and the actual offset index , according to the formula

[0050]

[0051] Get cable L i Installation tightening value .

[0052] By taking the actual pressure index of each cable line and the actual offset index Perform correlation analysis to obtain installation tightening value , installation tightening value and actual pressure index Proportional to the actual offset index Inversely proportional, that is, the greater the pressure at the installation interface and the smaller the position offset, the better the installation status of the connection, which improves the accuracy of the data and enables accurate judgment of the installation status.

[0053] Preferably, in the step S34, the fastening value is installed With standard installation value The specific comparison process is as follows:

[0054] Step S341. Obtain the installation tightening value of each cable in the g cables , according to the formula

[0055]

[0056] Get the installation tightening value Less than the standard installation value The cable line number i is obtained and the obtained cable line number is centrally output;

[0057] in, Indicates a set of cable line labels whose installation tightening value is less than the standard installation value;

[0058] Step S342. Set Read the label in:

[0059] If the collection If the set is empty, it means that all cable connections are in good condition and there is no risk of loosening or falling off, and a risk-free application instruction is output;

[0060] If the collection If the set is not empty, it means that some of the cables have loose connections, which will send a warning signal to the management personnel and The cable labels are output, and the cables, labels and images of the connections are sent to management personnel, and risk warning instructions are output.

[0061] By judging the set Whether it is an empty set, a risk-free application instruction or a risk warning instruction is generated to monitor the outdoor cables, so as to timely detect risks and take preventive measures to avoid power outages and safety accidents, or take remedial measures as soon as possible when the transmission cables are damaged to reduce the losses to the lowest possible level.

[0062] An image recognition system for dangerous areas of power supply cables in a city ring network includes a recognition layer, the recognition layer includes an image acquisition module, a camera device captures images of dangerous areas of power supply cables, and the image acquisition module captures and extracts images of dangerous areas of power supply cables through the camera device;

[0063] The processing layer is applied to the computing device and includes a first monitoring module and a second monitoring module. The first monitoring module determines whether the cable is sagging, falling, or broken by capturing the appearance image of the cable, and performs a dangerous area analysis on the appearance of the cable segment. The second monitoring module analyzes the installation status of the wiring and interface at the cable connection to obtain the connection pressure value and displacement deviation, determine the connection status of the wiring and interface, and generate corresponding application processing instructions based on whether the installation status of the cable is within a safe range.

[0064] Compared with the prior art, the present invention has the following beneficial effects:

[0065] 1. In the present invention, the deviation distance between the actual cable and the standard cable is calculated to analyze the real-time falling distance of the cable. Whether it exceeds the safe falling distance , and then evaluate and monitor the safety of the cable's sagging and falling, by With coordinate points Calculate the distance between the cables and analyze the actual width of the cable profile. and standard diameter value range The corresponding relationship is achieved by monitoring the depression and expansion of the contour line on the cable line, and then obtaining whether the cable line is broken or damaged, thereby realizing the safety protection and real-time monitoring of the cable line.

[0066] 2. In the present invention, the actual pressure index of each cable is and the actual offset index Perform correlation analysis and convert important indices that affect the installation interface and wiring installation status to obtain the installation tightening value , installation tightening value It has the characteristics of the above two influencing quantities at the same time, and the installation tightening value and actual pressure index Proportional to the actual offset index Inversely proportional, the greater the pressure at the installation interface and the smaller the position offset, the better the installation state of the connection, making the installation tightening value It is effective and practical, improves the accuracy of data, and enables accurate judgment of installation conditions.

[0067] 3. In the present invention, by judging the set If the set is empty, a risk-free application instruction or a risk warning instruction is generated. The risk-free application instruction indicates that no cables are in a risky state and all cables are in normal working condition. The risk warning instruction indicates that a cable is in a dangerous warning state and needs to be processed quickly. This enables monitoring of outdoor cables to facilitate timely detection of risks and preventive measures to avoid power outages and safety accidents, or to take remedial measures as soon as possible when power cables are damaged to minimize losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In a method for identifying dangerous area images of urban ring network power supply cables of the present invention:

[0069] Figure 1 A schematic diagram of the method proposed in the present invention;

[0070] Figure 2 A schematic diagram of a module provided by the present invention;

[0071] Figure 3 A schematic diagram of the cable installation provided by the present invention;

[0072] Figure 4 A schematic diagram of the cable line falling provided by the present invention;

[0073] Figure 5 A schematic diagram of the outline of the cable provided by the present invention;

[0074] Figure 6 A schematic diagram of cable line pressure monitoring locations provided by the present invention;

[0075] Figure 7 This is a schematic diagram of the cable line displacement monitoring location points provided by the present invention. DETAILED DESCRIPTION

[0076] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described herein.

[0077] In the present invention, the detection process is performed continuously. Therefore, the embodiments of the present invention perform detection based on a certain time point or time period.

[0078] Example 1

[0079] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , Example 1 further illustrates the image recognition method for dangerous areas of urban ring network power supply cables proposed by the present invention.

[0080] High-altitude cables are usually exposed outdoors and are affected by the external environment and human factors. The cables will be pressed by accumulated snow or other objects, causing the cables to sag and fall under the pressure. Human damage will also cause the cables to be pulled, causing the cables to fall off and sag. In addition, the outdoor environment is relatively complex, which will corrode, damage or scratch the cables, causing the cable skin to fall off or the wires to break, thereby affecting the working condition of the cables. These phenomena can be directly observed from the edge contour lines and appearance images of the cable surface. Therefore, the present invention performs safety control on the middle suspended section of the cable from this perspective, and the monitoring process is explained in this embodiment.

[0081] A method for identifying dangerous areas of power supply cables in urban ring networks is applied to the detection and data processing of images of dangerous areas of cables. The image recognition system for dangerous areas of cables includes a recognition layer, which includes an image acquisition module. A camera device captures images of dangerous areas of power supply cables. The image acquisition module captures and extracts images of dangerous areas of power supply cables using the camera device.

[0082] The processing layer is applied to the computing device and includes a first monitoring module. The first monitoring module determines whether the cable is sagging, falling or broken by capturing the appearance image of the cable line, and performs a dangerous area analysis on the appearance of the cable line segment.

[0083] like Figure 3 As shown, the cable dangerous area image recognition method includes the following steps:

[0084] S1. Obtain cable dangerous area image data, capture each cable image separately, and generate the original image data set corresponding to each cable line.

[0085] In the step S1, according to the cable dangerous area image data, the cable number is set to L, g is the total number of cables captured in the cable dangerous area image data, i is the number of the cable, and 1≤i≤g, then L i Indicates the cable numbered i among g cables;

[0086] Suppose the original image dataset is Q, then Q i represents the original image dataset corresponding to the cable line labeled i;

[0087] Assume the first risk value is WY, then WY i Indicates the first danger value corresponding to the cable numbered i; set the second danger value to WE, then WE i Indicates the second dangerous value corresponding to the cable numbered i; if the first safety value is set to AY, then AY i Indicates the first safety value corresponding to the cable numbered i; set the second safety value to AE, then AE i Indicates the second safety value corresponding to the cable numbered i.

[0088] The camera equipment collects images of the middle suspended section of the power supply cable in the dangerous area, and the images collected by the computing equipment are optimized to enhance the image color and the clarity of the image edges, so as to facilitate the extraction of data on the image.

[0089] In this embodiment, by dividing and labeling each cable line, it is convenient to generate the original image data set corresponding to each cable line from the cable dangerous area image data, and prevent recognition errors from occurring during the image data extraction process due to the extraction of multiple cable lines, and the actual cable lines and images are difficult to match one by one. At the same time, the original image data set corresponding to each cable line is quickly responded to, reducing the time for data transmission and processing, and can also reduce data response errors and omissions caused by the simultaneous operation of a large amount of data, thereby improving data processing efficiency and accuracy.

[0090] like Figure 4 As shown, S2, according to the original image data set, by capturing the appearance image of the cable line to determine whether it is sagging, falling and broken, obtain a first danger value, compare the first danger value with the first safety value, perform a dangerous area analysis on the appearance of the cable line segment, and generate corresponding application processing instructions.

[0091] In step S2, the first risk value WY includes a first falling risk value WYX and a first breaking risk value WYD, wherein the first falling risk value WYX is obtained as follows:

[0092] Step S211: Set the first falling risk value corresponding to the cable numbered i to WYXi , obtain the original image dataset Q i , set the actual center line Rs and standard center line Rb of the cable, represents a random point t on the standard center line Rb in the cable i, Indicates the position point t corresponding to t on the actual center line Rs of the cable i in the vertical direction 、 ;

[0093] Step S212: According to the formula

[0094]

[0095] According to the judgment value Get real-time falling distance Exceeding the safe falling distance The cable line number i is obtained and the obtained cable line number is centrally output;

[0096] in, Indicates the judgment value of the cable marked as i. Indicates the falling distance of the cable marked i. Indicates the set of cable line labels whose real-time falling distance exceeds the safe falling distance;

[0097] Step S213: According to the cable line labels output in step S212, the falling images of the cables with relevant labels are extracted from the original image data set, the falling images of the cables with relevant labels are transmitted together with the labels to the management personnel, and an alarm signal is issued.

[0098] By comparing the random point t on the standard center line Rb with the position point t on the actual center line Rs 、 The distance between the actual cable and the standard cable that meets the safety requirements is obtained to determine the real-time falling distance. Whether it exceeds the safe falling distance , and then evaluate and monitor the safety of the cable sagging and falling.

[0099] like Figure 5 As shown, in step S2, the process of obtaining the first fracture risk value WYD is specifically as follows:

[0100] S221, set the first break risk value corresponding to the cable numbered i to WYD i ;

[0101] In the vertical plane, the upper edge contour line of the cable is SBL and the lower edge contour line is XBL, SBL i The upper edge contour line of the cable marked i, XBL i The lower edge outline of the cable marked i;

[0102] On the upper edge contour line SBL i Select coordinate point , in the vertical direction, at the lower edge contour line XBL i Upper selection and upper edge contour line SBL i The coordinate point of the corresponding position ;

[0103] in, Indicates the position point number on the edge contour line;

[0104] Step S222: According to the formula

[0105]

[0106] By judging the actual contour width value Whether it complies with the standard diameter value range ,Analyze the thickness and deformation degree of the cable with label i, and then obtain whether the cable is broken or damaged;

[0107] in, Indicates the actual outline width of the cable marked i. A set of labels representing damaged cables;

[0108] Step S213: According to the cable line labels output in step S212, images of the cables with relevant labels are extracted from the original image data set, the damaged images of the cables and their labels are transmitted to the management personnel, and an alarm signal is issued.

[0109] Through the upper edge contour line SBL i Coordinate points and the lower edge contour line XBL i Coordinate points Calculate the distance between two points to obtain the actual outline width of the actual cable line , by setting the actual outline width value and standard diameter value range Compare and analyze the depression and expansion of the cable contour line, monitor whether the cable is bulging and damaged, and then determine whether the cable is broken or damaged, so as to achieve safe protection of the cable.

[0110] In this embodiment, the random point t and the position point t 、 , coordinate point With coordinate points There is no limit on the selection position and the number of selections, and the selection can be made according to the actual situation.

[0111] In this embodiment, the deviation distance between the actual cable line and the standard cable line is calculated to analyze the real-time falling distance of the cable line. Whether it exceeds the safe falling distance , and then evaluate and monitor the safety of the cable's sagging and falling, by With coordinate points Calculate the distance between the cables and analyze the actual width of the cable profile. and standard diameter value range The corresponding relationship is achieved by monitoring the depression and expansion of the contour line on the cable line, and then obtaining whether the cable line is broken or damaged, thereby realizing the safety protection and real-time monitoring of the cable line.

[0112] Example 2

[0113] Reference Figure 1 、 Figure 2 、 Figure 6 and Figure 7 , Example 2 further illustrates the image recognition method for dangerous areas of urban ring network power supply cables proposed by the present invention.

[0114] For cables that have been installed and used for a long time, since the cable material itself is heavy, the cable installation connection port will be affected by its own gravity, and the interface connection may even become loose, resulting in unstable contact or loss and jamming of transmission data. In this case, the looseness of the interface and connection can be observed based on the pressure value on the wire pressing and the interface and the relative displacement of the connection in the interface. Therefore, the present invention performs safety control on the cable joints and interfaces from this perspective, and the monitoring process is explained in this embodiment.

[0115] The urban ring network power supply cable dangerous area image recognition system includes a processing layer, which is applied to a computing device and includes a second monitoring module. The second monitoring module analyzes the installation status of the wiring and interfaces at the cable connection points to obtain the connection pressure value and displacement deviation, judges the connection status of the wiring and interfaces, and generates corresponding application processing instructions based on whether the installation status of the cable is within a safe range.

[0116] The cable dangerous area image recognition method comprises the following steps:

[0117] S3. Analyze the installation status of the wiring and interfaces at the cable connection points based on the original image data set, determine the connection status of the wiring and interfaces through the connection pressure value and the displacement deviation, obtain a second danger value, compare the second danger value with the second safety value, determine whether the installation status of the cable is within a safe range, and generate corresponding application processing instructions.

[0118] In the step S3, the second risk value WE i The acquisition process includes the following steps:

[0119] Step S31: extracting pressure image information of the cable connection based on the original image data set, obtaining connection pressure values of the connection and interface, and obtaining an actual pressure index;

[0120] Step S32: extracting displacement image information of the cable connection based on the original image data set, obtaining connection displacement values of the wiring and interface, and obtaining an actual offset index;

[0121] Step S33: Perform a joint analysis on the actual pressure index in step S31 and the actual offset index in step S32 to obtain the installation tightness value of the cable connection and determine whether the wiring and interface at the connection are loose.

[0122] Step S34: Compare the installation and tightening value of the cable in step S33 with the standard installation value, and generate corresponding application processing instructions.

[0123] like Figure 6 As shown, in the step S31, the process of obtaining the actual pressure index of the cable line is specifically as follows:

[0124] Step S311: Get the cable L i Pressure image information of the connection, multiple position points K are selected at the connection i , set the number of selected location points to , v represents the number of the position point, and 1≤v≤ , K i v Indicates the position point marked with v, and sets the real-time pressure value to P i ;

[0125] Step S312: Obtain location point K i v The real-time pressure value P i v , according to the formula

[0126]

[0127] Get the actual pressure index at the connection ;

[0128] Actual pressure index The function is to intuitively reflect the pressure situation at the connection between the wiring and the interface, and is used to detect multiple position points K i The average real-time pressure value P i, judge the tightness of the installation port to the cable wiring, analyze whether the installation interface has loose screws or other components caused by long-term use, resulting in unstable installation, and realize monitoring of the tightness of the interface and wiring.

[0129] like Figure 7 As shown, in step S32, the actual offset index acquisition process is specifically as follows:

[0130] Step S321: Acquire multiple position points K in step S311 i , set the cycle time T, and obtain the cable line L again after the cycle time T i Pressure image information of the connection point, get the position point K i The corresponding position at this time ,but Indicates the position of the point labeled v after the period T;

[0131] Step S322: Get location point K i v The coordinates of , and location points The coordinates of , according to the formula

[0132]

[0133] Get the actual offset index of the connection ;

[0134] Actual deviation index The function is to intuitively reflect the movement of the wiring in the interface and is used to detect multiple position points K i The cable can be pulled out of the installation interface due to stress, and its displacement degree can be judged to determine whether it affects the normal working state. It can also be analyzed whether the installation interface has become loose due to long-term use and stress, so as to monitor the connection status of the interface and wiring.

[0135] In step S33, the specific process of performing the simultaneous analysis of the actual pressure index and the actual offset index is as follows:

[0136] Get the actual pressure index of each cable line and the actual offset index , according to the formula

[0137]

[0138] Get cable L i Installation tightening value .

[0139] In this embodiment, the position point K i and There is no limit on the selection position and the number of selections, and the selection can be made according to the actual situation.

[0140] In this embodiment, the actual pressure index of each cable is calculated by and the actual offset index Perform correlation analysis and convert important indices that affect the installation interface and wiring installation status to obtain the installation tightening value , installation tightening value It has the characteristics of the above two influencing quantities at the same time, and the installation tightening value and actual pressure index Proportional to the actual offset index Inversely proportional, that is, the greater the pressure at the installation interface and the smaller the position offset, the better the installation state of the connection, making the installation tightness value It is effective and practical, improves the accuracy of data, and enables accurate judgment of installation conditions.

[0141] In the step S34, the installation fastening value With standard installation value The specific comparison process is as follows:

[0142] Step S341. Obtain the installation tightening value of each cable in the g cables , according to the formula

[0143]

[0144] Get the installation tightening value Less than the standard installation value The cable line number i is obtained and the obtained cable line number is centrally output;

[0145] in, Indicates a set of cable line labels whose installation tightening value is less than the standard installation value;

[0146] Step S342. Set Read the label in:

[0147] If the collection If the set is empty, it means that all cable connections are in good condition and there is no risk of loosening or falling off, and a risk-free application instruction is output;

[0148] If the collection If the set is not empty, it means that some of the cables have loose connections, which will send a warning signal to the management personnel and The cable labels are output, and the cables, labels and images of the connections are sent to management personnel, and risk warning instructions are output.

[0149] In this embodiment, by judging the set If the set is empty, a risk-free application instruction or a risk warning instruction is generated. The risk-free application instruction indicates that no cables are in a risky state and all cables are in normal working condition. The risk warning instruction indicates that a cable is in a dangerous warning state and needs to be processed quickly. This enables monitoring of outdoor cables to facilitate timely detection of risks and preventive measures to avoid power outages and safety accidents, or to take remedial measures as soon as possible when power cables are damaged to minimize losses.

[0150] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for identifying dangerous areas of urban ring network power supply cables, characterized in that: Applied to the detection and data processing of cable dangerous area images, the cable dangerous area image recognition method includes the following steps: S1. Obtain image data of cable dangerous areas, capture each cable image separately, and generate the original image data set corresponding to each cable line; S2. Based on the original image dataset, determine whether the cable is sagging, falling, or broken by capturing an image of its appearance, obtain a first danger value, compare the first danger value with a first safety value, perform a danger zone analysis on the cable segment appearance, and generate corresponding application processing instructions; S3. Analyze the installation status of the wiring and interfaces at the cable connection points based on the original image data set, determine the connection status of the wiring and interfaces through the connection pressure value and the displacement deviation, obtain a second danger value, compare the second danger value with the second safety value, determine whether the installation status of the cable is within a safe range, and generate corresponding application processing instructions.

2. The method for identifying dangerous areas of urban ring network power supply cables according to claim 1, characterized in that: In the step S1, according to the cable dangerous area image data, the cable number is set to L, g is the total number of cables captured in the cable dangerous area image data, i is the number of the cable, and 1≤i≤g, then L i Indicates the cable numbered i among g cables; Suppose the original image dataset is Q, then Q i represents the original image dataset corresponding to the cable line labeled i; Assume the first risk value is WY, then WY i Indicates the first hazard value corresponding to the cable numbered i; Set the second risk value to WE, then WE i Indicates the second dangerous value corresponding to the cable numbered i; if the first safety value is set to AY, then AY i Indicates the first safety value corresponding to the cable numbered i; set the second safety value to AE, then AE i Indicates the second safety value corresponding to the cable numbered i.

3. The method for identifying dangerous areas of urban ring network power supply cables according to claim 1, characterized in that: In step S2, the first risk value WY includes a first falling risk value WYX and a first breaking risk value WYD, wherein the first falling risk value WYX is obtained as follows: Step S211: Set the first falling risk value corresponding to the cable numbered i to WYX i , obtain the original image dataset Q i , set the actual center line Rs and standard center line Rb of the cable, represents a random point t on the standard center line Rb in the cable i, Indicates the position point t corresponding to t on the actual center line Rs of the cable i in the vertical direction 、 ; Step S212: According to the formula ； According to the judgment value Get real-time falling distance Exceeding the safe falling distance The cable line number i is obtained and the obtained cable line number is centrally output; in, Indicates the judgment value of the cable marked as i. Indicates the falling distance of the cable marked i. Indicates the set of cable line labels whose real-time falling distance exceeds the safe falling distance; Step S213: According to the cable line labels output in step S212, the falling images of the cables with relevant labels are extracted from the original image data set, the falling images of the cables with relevant labels are transmitted together with the labels to the management personnel, and an alarm signal is issued.

4. The method for identifying dangerous areas of urban ring network power supply cables according to claim 3, characterized in that: In step S2, the process of obtaining the first fracture risk value WYD is specifically as follows: S221, set the first break risk value corresponding to the cable numbered i to WYD i ; In the vertical plane, the upper edge contour line of the cable is SBL and the lower edge contour line is XBL, SBL i The upper edge contour line of the cable marked i, XBL i The lower edge outline of the cable marked i; On the upper edge contour line SBL i Select coordinate point , in the vertical direction, at the lower edge contour line XBL i Upper selection and upper edge contour line SBL i The coordinate point of the corresponding position ; in, Indicates the position point number on the edge contour line; Step S222: According to the formula ； By judging the actual contour width value Whether it complies with the standard diameter value range ,Analyze the thickness and deformation degree of the cable with label i, and then obtain whether the cable is broken or damaged; in, Indicates the actual outline width of the cable marked i. A set of labels representing damaged cables; Step S213: According to the cable line labels output in step S212, images of the cables with relevant labels are extracted from the original image data set, the damaged images of the cables and their labels are transmitted to the management personnel, and an alarm signal is issued.

5. The method for identifying dangerous area images of urban ring network power supply cables according to claim 1, characterized in that: In the step S3, the second risk value WE i The acquisition process includes the following steps: Step S31: extracting pressure image information of the cable connection according to the original image data set, obtaining connection pressure values of the connection and interface, and obtaining an actual pressure index; Step S32: extracting displacement image information of the cable connection based on the original image data set, obtaining connection displacement values of the wiring and interface, and obtaining an actual offset index; Step S33: Perform a joint analysis on the actual pressure index in step S31 and the actual offset index in step S32 to obtain the installation tightness value of the cable connection and determine whether the connection and interface are loose. Step S34: Compare the installation and tightening value of the cable in step S33 with the standard installation value, and generate corresponding application processing instructions.

6. The method for identifying dangerous areas of urban ring network power supply cables according to claim 5, characterized in that: In the step S31, the process of obtaining the actual pressure index of the cable is specifically as follows: Step S311: Get the cable L i Pressure image information of the connection, multiple position points K are selected at the connection i , set the number of selected location points to , v represents the number of the position point, and 1≤v≤ , K i v Indicates the position point marked with v, and sets the real-time pressure value to P i ; Step S312: Obtain location point K i v The real-time pressure value P i v , according to the formula Get the actual pressure index at the connection .

7. The method for identifying dangerous areas of urban ring network power supply cables according to claim 5, characterized in that: In step S32, the actual offset index is obtained as follows: Step S321: Acquire multiple position points K in step S311 i , set the cycle time T, and obtain the cable line L again after the cycle time T i Pressure image information of the connection point, get the position point K i The corresponding position at this time ,but Indicates the position of the point labeled v after the period T; Step S322: Get location point K i v The coordinates of , and location points The coordinates of , according to the formula Get the actual offset index of the connection .

8. The method for identifying dangerous area images of urban ring network power supply cables according to claim 5, characterized in that: In step S33, the specific process of performing the simultaneous analysis of the actual pressure index and the actual offset index is as follows: Get the actual pressure index of each cable line and the actual offset index , according to the formula ； Get cable L i Installation tightening value .

9. The method for identifying dangerous area images of urban ring network power supply cables according to claim 5, characterized in that: In the step S34, the installation fastening value With standard installation value The specific comparison process is as follows: Step S341. Obtain the installation tightening value of each cable in the g cables , according to the formula ； Get the installation tightening value Less than the standard installation value The cable line number i is obtained and the obtained cable line number is centrally output; in, Indicates a set of cable line labels whose installation tightening value is less than the standard installation value; Step S342. Set Read the label in: If the collection If the set is empty, it means that all cable connections are in good condition and there is no risk of loosening or falling off, and a risk-free application instruction is output; If the collection If the set is not empty, it means that some of the cables have loose connections, which will send a warning signal to the management personnel and The cable labels are output, and the cables, labels and images of the connections are sent to management personnel, and risk warning instructions are output.

10. An image recognition system for dangerous areas of urban ring network power supply cables, characterized in that: The recognition layer includes an image acquisition module, wherein the camera device takes an image of the dangerous area of the power supply cable, and the image acquisition module takes an image of the dangerous area of the power supply cable and extracts the image through the camera device; The processing layer is applied to the computing device and includes a first monitoring module and a second monitoring module. The first monitoring module determines whether the cable is sagging, falling, or broken by capturing the appearance image of the cable, and performs a dangerous area analysis on the appearance of the cable segment. The second monitoring module analyzes the installation status of the wiring and interface at the cable connection to obtain the connection pressure value and displacement deviation, determine the connection status of the wiring and interface, and generate corresponding application processing instructions based on whether the installation status of the cable is within a safe range.

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