A cable laying device for power construction and a monitoring method

Abstract

The application discloses a cable laying device for power construction and a monitoring method, relates to the technical field of cable equipment, and comprises a moving module, a bottom plate, a cable reel, a cable reel driving module, a cable stretching auxiliary module, a cable length detection module, a cable damage detection module and a controller. The method comprises the following steps: the cable is stretched and assisted by the cable stretching auxiliary module; the length of the cable is detected by the cable length detection module; and the appearance damage of the cable is detected by the cable damage detection module. The device and the method can change the cable from a bending state to a relaxation state, and can detect the length and the appearance damage of the cable.

Description

Technical Field

[0001] This invention relates to the field of cable equipment technology, and in particular to a cable laying device and monitoring method for power construction. Background Technology

[0002] Cable laying refers to the process of laying and installing cables along a surveyed route to form a cable line. Depending on the application, it can be divided into several laying methods such as overhead, underground, underwater, wall, and tunnel. The rational selection of cable laying method is very important for ensuring the transmission quality, reliability, construction and maintenance of the line.

[0003] During cable laying, the cables are always coiled on cable reels, resulting in a bent state that is difficult to straighten and thus inconvenient to lay. Furthermore, measuring cable length often requires workers to use a ruler, which is extremely inconvenient. Damage to the cables during transportation is also difficult to detect during laying, potentially leading to safety accidents during actual use. However, existing cable laying equipment is limited in function and cannot meet the demands of cable laying. Any of the above-mentioned issues will reduce the efficiency of cable laying work. Summary of the Invention

[0004] This invention provides a cable laying device and monitoring method for power construction, which solves the technical problem that existing cable laying devices have limited functions and cannot meet the needs of cable laying. If any of the above situations occur, the efficiency of cable laying work will be reduced.

[0005] The first aspect of the present invention provides a cable laying device for power construction, comprising a base plate, a cable reel, a cable reel driving module, a cable stretching auxiliary module, a cable length detection module, a cable damage detection module, and a controller;

[0006] The cable reel is provided on one side of the upper end face of the base plate, and the cable reel drive module is provided on the front side of the cable reel.

[0007] The cable reel drive module is connected to the cable reel drive, and the cable reel drive module is used to drive the cable reel to rotate, thereby causing the cable to wind around the cable reel.

[0008] On the other side of the upper surface of the base plate, from near to far from the cable reel, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are arranged sequentially.

[0009] The cable stretching auxiliary module is used to heat and stretch the cable;

[0010] The cable length detection module is used to detect the length of the cable;

[0011] The cable damage detection module is used to inspect the appearance of the cable;

[0012] The cable reel drive module, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are all electrically connected to the controller.

[0013] Optionally, the cable reel drive module includes a bracket, a motor mounting plate, and a rotary motor;

[0014] The bracket is fixedly installed on one side of the upper end face of the base plate, and the cable reel is rotatably mounted on the bracket, with a cable wound on the cable reel;

[0015] The motor mounting plate is fixedly installed on the front side of the bracket, and the rotary motor is installed on the top of the motor mounting plate;

[0016] The output end of the rotary motor is fixedly connected to the cable reel, and the rotary motor is used to drive the cable reel to rotate;

[0017] The rotary motor is electrically connected to the controller.

[0018] Optionally, the cable stretching module includes a first electric telescopic rod, a first circular frame, a second electric telescopic rod, a first circular plate, a first roller assembly, and a heating assembly;

[0019] The first electric telescopic rod is fixedly installed on one side of the cable reel, and the first circular frame is fixedly installed on the top of the first electric telescopic rod.

[0020] The first circular frame has a plurality of second electric telescopic rods evenly arranged inside, and the first circular plate is provided on the second electric telescopic rods;

[0021] The first roller assembly is provided at the inner center of the first annular plate, and the first roller assembly is used to contact the cable;

[0022] The heating components are uniformly arranged on the outer side of the first annular plate, and the heating components are used to heat the cable;

[0023] The first electric telescopic rod, the second electric telescopic rod, and the heating assembly are all electrically connected to the controller.

[0024] Optionally, the cable length detection module includes a third electric telescopic rod, a second circular frame, a fourth electric telescopic rod, a second circular plate, a second roller assembly, and a rotation sensor;

[0025] The third electric telescopic rod is fixedly installed on one side of the first electric telescopic rod, and the second circular frame is fixedly installed on the top of the third electric telescopic rod;

[0026] The second circular frame has a plurality of fourth electric telescopic rods evenly arranged inside, and the second circular plate is provided on the fourth electric telescopic rod;

[0027] The second roller assembly is disposed at the inner center of the second annular plate, and the second roller assembly is used to contact the cable;

[0028] The rotation sensor is disposed on the second roller assembly;

[0029] The third electric telescopic rod, the fourth electric telescopic rod, and the rotation sensor are all electrically connected to the controller.

[0030] Optionally, the cable damage detection module includes a fifth electric telescopic rod, a third circular frame, and a CCD camera;

[0031] The fifth electric telescopic rod is fixedly installed on one side of the third electric telescopic rod, and the third circular frame is fixedly installed on the top of the fifth electric telescopic rod;

[0032] The CCD camera is installed inside the third circular frame, and the CCD camera is used to capture an image of the appearance of the cable passing through the center of the third circular frame.

[0033] Both the fifth electric telescopic pole and the CCD camera are electrically connected to the controller.

[0034] Optionally, a mobile module may also be included;

[0035] The moving module is installed on the lower end face of the base plate. The moving module is used to drive the power construction cable laying device to the designated working position.

[0036] The second aspect of this invention provides a method for monitoring the laying of power construction cables, utilizing the aforementioned power construction cable laying device. The power construction cable laying device includes a base plate, a cable reel, a cable reel drive module, a cable tensioning auxiliary module, a cable length detection module, a cable damage detection module, and a controller. The method includes:

[0037] The controller activates the cable reel drive module mounted on the base plate, which drives the cable reel to rotate, causing the cable to extend from the cable reel and pass through the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module in sequence.

[0038] The cable is stretched using the cable stretching assistance module.

[0039] The cable length is detected by the cable length detection module.

[0040] The cable damage detection module is used to detect the external damage to the cable.

[0041] Optionally, the cable stretching module includes a first electric telescopic rod, a first circular frame, a second electric telescopic rod, a first circular plate, a first roller assembly, and a heating assembly. The step of assisting in stretching the cable using the cable stretching auxiliary module includes:

[0042] The first circular frame is moved to the designated position using the first electric telescopic rod;

[0043] The first annular plate is moved to the designated position by the second electric telescopic rod;

[0044] Pull the cable through the first roller assembly located at the center of the first annular plate, and heat the first annular plate through the heating assembly to transfer heat to the cable.

[0045] Optionally, the cable length detection module includes a third electric telescopic rod, a second circular frame, a fourth electric telescopic rod, a second circular plate, a second roller assembly, and a rotation sensor. The step of detecting the cable length using the cable length detection module includes:

[0046] The second circular frame is moved to the designated position by the third electric telescopic rod;

[0047] The second annular plate is moved to the designated position by the fourth electric telescopic rod;

[0048] Pull the extended cable through the center of the second annular plate, so that it contacts the second roller assembly;

[0049] Pulling the cable causes the second roller assembly to rotate. The rotation sensor detects the number of rotations of the second roller assembly and sends it to the controller.

[0050] The length of the cable is determined by pre-setting the length of one rotation of the second roller assembly inside the controller, and by using the length of one rotation of the second roller assembly and the total number of rotations.

[0051] Optionally, the cable damage detection module includes a fifth electric telescopic rod, a third circular frame, and a CCD camera. The step of detecting the appearance damage of the cable using the cable damage detection module includes:

[0052] The third circular frame is moved to the designated position by the fourth electric telescopic rod;

[0053] Pull the cable through the center of the third circular frame;

[0054] The CCD camera is used to capture images of the cable's appearance, which are then sent to the controller.

[0055] The controller performs region segmentation and image preprocessing on the appearance image to obtain a preprocessed cable appearance image.

[0056] A defect segmentation model is built based on a defect segmentation algorithm. The cable appearance image is input into the defect segmentation model for appearance defect detection, and appearance defect detection results are generated.

[0057] As can be seen from the above technical solutions, the present invention has the following advantages:

[0058] The present invention provides a cable laying device and monitoring method for power construction, comprising a moving module, a base plate, a cable reel, a cable reel driving module, a cable stretching auxiliary module, a cable length detection module, a cable damage detection module, and a controller. The method includes stretching the cable through the cable stretching auxiliary module, detecting the length of the cable through the cable length detection module, and detecting the appearance damage of the cable through the cable damage detection module. The device and method can change the cable from a bent state to a stretched state and can detect the length and appearance damage of the cable. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a schematic diagram of the cable laying device for power construction according to an embodiment of the present invention;

[0061] Figure 2 This is a schematic diagram of the cable stretching auxiliary module structure according to an embodiment of the present invention;

[0062] Figure 3 This is a schematic diagram of the cable length detection module according to an embodiment of the present invention;

[0063] Figure 4 This is a schematic diagram of the cable damage detection module according to an embodiment of the present invention;

[0064] Figure 5 This is a schematic diagram of the cable reel structure according to an embodiment of the present invention;

[0065] Figure 6 This is a flowchart illustrating the steps of a power construction cable laying monitoring method according to an embodiment of the present invention.

[0066] The meanings of the reference numerals in the attached figures are as follows:

[0067] 1. Base plate; 2. Bracket; 3. Motor mounting plate; 4. Cable reel; 5. Rotary motor; 6. First circular frame; 7. First electric telescopic rod; 8. Third electric telescopic rod; 9. Second circular frame; 10. Fifth electric telescopic rod; 11. Third circular frame; 12. Second electric telescopic rod; 13. First circular plate; 14. Heating assembly; 15. First roller assembly; 16. Fourth electric telescopic rod; 17. Second circular plate; 18. Second roller assembly; 19. CCD camera. Detailed Implementation

[0068] This invention provides a cable laying device and monitoring method for power construction, which solves the technical problem that existing cable laying devices have limited functions and cannot meet the needs of cable laying. If any of the above situations occur, it will lead to a reduction in the efficiency of cable laying work.

[0069] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0070] Please see Figure 1 and Figure 5 This invention provides a cable laying device for power construction, comprising a base plate 1, a cable reel 4, a cable reel drive module, a cable stretching auxiliary module, a cable length detection module, a cable damage detection module, and a controller. The cable reel 4 is disposed on one side of the upper end face of the base plate 1, and the cable reel drive module is disposed on the front side of the cable reel 4. The cable reel drive module is driven by the cable reel 4 and is used to drive the cable reel 4 to rotate, causing the cable to wind around the cable reel 4. On the other side of the upper end face of the base plate 1, from near to far from the cable reel 4, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are sequentially disposed. The cable stretching auxiliary module is used to heat and stretch the cable. The cable length detection module is used to detect the length of the cable. The cable damage detection module is used to inspect the appearance of the cable. The cable reel drive module, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are all electrically connected to the controller.

[0071] It should be noted that, depending on specific needs, this invention can be equipped with a touch screen display, which can be used to control the controller and display relevant data. A moving module is provided at the bottom of the base plate 1, and a cable reel 4 is provided on one side of the top of the base plate 1. On the other side, from near to far from the cable reel 4, a cable stretching auxiliary module, a cable length detection module, and a cable damage detection module are provided in sequence. A cable reel drive module is provided on the front side of the cable reel 4, and the cable reel drive module drives and connects to the cable reel 4. The cable reel drive module, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are electrically connected to the controller.

[0072] Please see Figure 1 and Figure 5 The present invention provides a cable laying device for power construction. The cable reel drive module includes a bracket 2, a motor fixing plate 3, and a rotary motor 5. The bracket 2 is fixedly installed on one side of the upper end face of the base plate 1, and the cable reel 4 is rotatably installed on the bracket 2, with a cable wound on the cable reel 4. The motor fixing plate 3 is fixedly installed on the front side of the bracket 2, and the rotary motor 5 is installed on the top of the motor fixing plate 3. The output end of the rotary motor 5 is fixedly connected to the cable reel 4, and the rotary motor 5 is used to drive the cable reel 4 to rotate. The rotary motor 5 is electrically connected to the controller.

[0073] It should be noted that the cable reel drive module includes a bracket 2, a motor mounting plate 3, and a rotary motor 5. The bracket 2 is fixedly installed on one side of the top of the base plate 1. The cable reel 4 is rotatably mounted on the bracket 2, and a cable is wound on the cable reel 4. The motor mounting plate 3 is fixedly installed on the front side of the bracket 2. The rotary motor 5 is fixedly installed on the top of the motor mounting plate 3. The output end of the rotary motor 5 is fixedly connected to the cable reel 4 to drive the cable reel 4 to rotate. The rotary motor 5 is electrically connected to the controller.

[0074] Working principle of the cable reel drive module: During cable stretching, the controller controls the rotary motor 5 to rotate along the stretching direction, saving the operator's physical strength. It can also be used when winding the cable onto the cable reel 4. The structure of the cable reel 4 is as follows: Figure 5 As shown.

[0075] Please see Figure 2This invention provides a cable laying device for power construction. The cable stretching module includes a first electric telescopic rod 7, a first circular frame 6, a second electric telescopic rod 12, a first circular plate 13, a first roller assembly 15, and a heating assembly 14. The first electric telescopic rod 7 is fixedly installed on one side of the cable reel 4, and the first circular frame 6 is fixedly installed on the top of the first electric telescopic rod 7. A plurality of second electric telescopic rods 12 are evenly arranged inside the first circular frame 6, and the first circular plate 13 is installed on the second electric telescopic rod 12. The first roller assembly 15 is arranged at the center of the inner side of the first circular plate 13, and the first roller assembly 15 is used to contact the cable. The heating assembly 14 is evenly arranged on the outer side of the first circular plate 13, and the heating assembly 14 is used to heat the cable. The first electric telescopic rod 7, the second electric telescopic rod 12, and the heating assembly 14 are all electrically connected to a controller.

[0076] It should be noted that the cable stretching module includes a first electric telescopic rod 7, a first circular frame 6, a second electric telescopic rod 12, a first circular plate 13, a first roller assembly 15, and a heating assembly 14. The first electric telescopic rod 7 is fixedly installed on one side of the cable reel 4, and the first circular frame 6 is fixedly installed on the top of the first electric telescopic rod 7. Multiple second electric telescopic rods 12 are evenly arranged inside the first circular frame 6. The first circular plate 13 is installed on the second electric telescopic rod 12. The first roller assembly 15 is installed at the center of the inner side of the first circular plate 13. The first roller assembly 15 is used to contact the cable. The heating assembly 14 is evenly arranged on the outer side of the first circular plate 13 for heating the cable. The first electric telescopic rod 7, the second electric telescopic rod 12, and the heating assembly 14 are electrically connected to a controller.

[0077] The working principle of the cable stretching module: The controller controls the first electric telescopic rod 7 to move the first circular frame 6 to a suitable height. According to the diameter of the cable, the controller controls the second electric telescopic rod 12 to move the first circular plate 13 closer. It should be noted that multiple first circular plates 13 and second circular plates 17 are provided to drive the roller assembly to clamp the cable. The controller controls the heating component 14 to turn on, transferring heat to the first circular plate 13 and the first roller assembly 15. At this time, the cable is passed through the center of the first circular plate 13. Since the cable is in contact with the first roller assembly 15, heat is also transferred to the cable, heating the cable and making it stretch. The first roller assembly 15 and the second roller assembly 18 are not limited and conventional roller assemblies can be used. However, the first circular plate 13 and the first roller assembly 15 should be made of thermally conductive materials, and the heating component 14 can also be a conventional heating component 14.

[0078] Please see Figure 3This invention provides a cable laying device for power construction. The cable length detection module includes a third electric telescopic rod 8, a second circular frame 9, a fourth electric telescopic rod 16, a second circular plate 17, a second roller assembly 18, and a rotation sensor. The third electric telescopic rod 8 is fixedly installed on one side of the first electric telescopic rod 7, and the second circular frame 9 is fixedly installed on the top of the third electric telescopic rod 8. A plurality of fourth electric telescopic rods 16 are evenly arranged inside the second circular frame 9, and the second circular plate 17 is installed on the fourth electric telescopic rod 16. The second roller assembly 18 is installed at the center of the inner side of the second circular plate 17, and the second roller assembly 18 is used to contact the cable. The rotation sensor is installed on the second roller assembly 18. The third electric telescopic rod 8, the fourth electric telescopic rod 16, and the rotation sensor are all electrically connected to the controller.

[0079] It should be noted that the cable length detection module includes a third electric telescopic rod 8, a second circular frame 9, a fourth electric telescopic rod 16, a second circular plate 17, a second roller assembly 18, and a rotation sensor. The third electric telescopic rod 8 is fixedly installed on one side of the first electric telescopic rod 7, and the second circular frame 9 is fixedly installed on the top of the third electric telescopic rod 8. Multiple fourth electric telescopic rods 16 are evenly arranged inside the second circular frame 9. The second circular plate 17 is installed on the fourth electric telescopic rod 16, and the second roller assembly 18 is installed at the inner center of the second circular plate 17. The second roller assembly 18 is used to contact the cable, and the rotation sensor is installed on the second roller assembly 18. The third electric telescopic rod 8, the fourth electric telescopic rod 16, and the rotation sensor are electrically connected to the controller.

[0080] The working principle of the cable length detection module is as follows: The controller controls the third electric telescopic rod 8 to move the second circular frame 9 to a suitable position, and the fourth electric telescopic rod 16 to move the second circular plate 17 to a suitable position. The extended cable is pulled through the center of the second circular plate 17 and brought into contact with the second roller assembly 18. The cable is pulled, causing the second roller assembly 18 to rotate. The rotation sensor detects the number of rotations of the second roller assembly 18 and sends it to the controller. The controller has a preset length for one rotation of the second roller assembly 18 and calculates the cable length by using the length of one rotation of the second roller assembly 18 and the total number of rotations.

[0081] Please see Figure 4 The present invention provides a cable laying device for power construction, wherein the cable damage detection module includes a fifth electric telescopic rod 10, a third circular frame 11, and a CCD camera 19; the fifth electric telescopic rod 10 is fixedly installed on one side of the third electric telescopic rod 8, and the third circular frame 11 is fixedly installed on the top of the fifth electric telescopic rod 10; the CCD camera 19 is installed inside the third circular frame 11, and the CCD camera 19 is used to collect the appearance image of the cable passing through the center of the third circular frame 11; both the fifth electric telescopic rod 10 and the CCD camera 19 are electrically connected to the controller.

[0082] It should be noted that the cable damage detection module includes a fifth electric telescopic rod 10, a third circular frame 11, and a CCD camera 19. The fifth electric telescopic rod 10 is fixedly installed on one side of the third electric telescopic rod 8, and the third circular frame 11 is fixedly installed on the top of the fifth electric telescopic rod 10. The CCD camera 19 is installed inside the third circular frame 11. The CCD camera 19 is used to collect images of the appearance of the cable passing through the center of the third circular frame 11. The fifth electric telescopic rod 10 and the CCD camera 19 are electrically connected to a controller. An arc-shaped light source is installed on the third circular frame 11 for illumination, which facilitates image acquisition.

[0083] Please see Figure 1 The present invention provides a cable laying device for power construction, which also includes a moving module;

[0084] A moving module is installed on the lower end face of the base plate 1. The moving module is used to drive the cable laying device for power construction to the designated working position.

[0085] It should be noted that the mobile module can be equipped with casters and brake pads for ease of use. The casters drive the power cable laying device to the designated working position.

[0086] Please see Figure 6 This invention provides a monitoring method for cable laying in power construction, utilizing a cable laying device for power construction. The device includes a base plate 1, a cable reel 4, a cable reel drive module, a cable stretching auxiliary module, a cable length detection module, a cable damage detection module, and a controller. The method includes:

[0087] Step 101: Start the cable reel drive module installed on the base plate 1 through the controller, drive the cable reel to rotate, and drive the cable to extend from the cable reel 4 and pass through the cable stretching auxiliary module, cable length detection module and cable damage detection module in sequence.

[0088] Step 102: Assist the cable stretching process using the cable stretching auxiliary module.

[0089] Step 103: Detect the length of the cable using the cable length detection module.

[0090] Step 104: Detect the appearance damage of the cable using the cable damage detection module.

[0091] In this embodiment of the invention, the cable reel drive module installed on the base plate 1 is activated by the controller to drive the cable reel 4 to rotate, causing the cable to extend from the cable reel 4 and pass through the cable stretching assistance module, the cable length detection module and the cable damage detection module in sequence. The cable stretching assistance module provides stretching assistance to the cable, the cable length detection module detects the length of the cable, and the cable damage detection module detects the appearance damage of the cable.

[0092] Furthermore, the cable stretching module includes a first electric telescopic rod 7, a first circular frame 6, a second electric telescopic rod 12, a first circular plate 13, a first roller assembly 15, and a heating assembly 14. Step 102 may also include the following sub-steps:

[0093] S11. Move the first circular frame 6 to the designated position using the first electric telescopic rod 7.

[0094] S12. Move the first annular plate 13 to the designated position using the second electric telescopic rod 12.

[0095] S13. Pull the cable through the first roller assembly 15 located at the center of the first annular plate 13, and heat the first annular plate 13 through the heating assembly 14 to transfer the heat to the cable.

[0096] In this embodiment of the invention, the first circular frame 6 is moved to a suitable position by the first electric telescopic rod 7, the first circular plate 13 is moved to a suitable position by the second electric telescopic rod 12, the cable is pulled through the center of the first circular plate 13, and the first circular plate 13 is heated by the heating component 14 to transfer heat to the cable, so that it stretches from the bent state, thereby achieving the stretching assistance of the cable.

[0097] Furthermore, the cable length detection module includes a third electric telescopic rod 8, a second circular frame 9, a fourth electric telescopic rod 16, a second circular plate 17, a second roller assembly 18, and a rotation sensor. Step 103 may also include the following sub-steps:

[0098] S21. Move the second circular frame 9 to the designated position using the third electric telescopic rod 8.

[0099] S22. Move the second annular plate 17 to the designated position using the fourth electric telescopic rod 16.

[0100] S23. Pull the stretched cable through the center of the second annular plate 17 so that it comes into contact with the second roller assembly 18.

[0101] S24. Pull the cable to rotate the second roller assembly 18. The rotation sensor detects the number of rotations of the second roller assembly 18 and sends it to the controller.

[0102] S25. The length of the cable is determined by the length of one rotation of the second roller assembly 18 preset inside the controller and by the length of one rotation of the second roller assembly 18 and the total number of rotations.

[0103] In this embodiment of the invention, the second annular frame 9 is moved to a suitable position by the third electric telescopic rod 8, and the second annular plate 17 is moved to a suitable position by the fourth electric telescopic rod 16. The stretched cable is pulled through the center of the second annular plate 17 so that it contacts the second roller assembly 18. Pulling the cable causes the second roller assembly 18 to rotate. The rotation sensor detects the number of rotations of the second roller assembly 18 and sends it to the controller. The controller presets the length of one rotation of the second roller assembly 18 and calculates the length of the cable by the length of one rotation of the second roller assembly 18 and the total number of rotations.

[0104] Furthermore, the cable damage detection module includes a fifth electric telescopic pole 10, a third circular frame 11, and a CCD camera 19. Step 104 may also include the following sub-steps:

[0105] S31. Move the third circular frame 11 to the designated position using the fourth electric telescopic rod 16.

[0106] S32, pull the cable through the center of the third circular frame 11.

[0107] S33. Use CCD camera 19 to capture images of the cable's appearance and send them to the controller.

[0108] S34. The controller performs region segmentation and image preprocessing on the appearance image to obtain the preprocessed cable appearance image.

[0109] It is worth mentioning that the controller performs region segmentation and image preprocessing on the appearance image to obtain a preprocessed cable appearance image, specifically:

[0110] Because a light source is present and the cable images are all dark cable surfaces, the grayscale of the cable area is significantly lower than that of the background. Typically, the row grayscale mean method can be used to locate and extract the cable area. This invention provides an embodiment where, assuming the row grayscale mean of the cable image is u(x), multiplying the row grayscale mean of the cable image by a Gaussian distribution-based position weight function w(x) yields the feature value λ(x) of the x-th row of the cable image f(x,y), expressed as:

[0111]

[0112] After extraction, the frequency domain image is segmented and reconstructed using homomorphic filtering. By reducing low-frequency components and increasing high-frequency components, the image contrast and transparency are increased, and the sharpened edge details caused by lighting are reduced, resulting in the final cable appearance image.

[0113] S35. Based on the defect segmentation algorithm, build a defect segmentation model, input the cable appearance image into the defect segmentation model for appearance defect detection, and generate appearance defect detection results.

[0114] It is worth mentioning that a defect segmentation model is built based on the defect segmentation algorithm, specifically as follows:

[0115] An image differencing algorithm is used, where P and Q are the input and smoothed background images, respectively, N is the adaptive filtering window centered at i, S and US are the structured and flat regions, respectively, P(·) is the gray value of the target pixel, ω(i,j) is the normalized weight coefficient, and σ r If the standard deviation is a Gaussian function, then the background model of the cable surface image can be represented as:

[0116]

[0117] In the formula, Q represents the smoothed background image, ω(i,j) represents the normalized weight coefficient, and P(i) and P(j) represent the pixel value (grayscale value) at position (i,j) in the cable surface image. It is a spatial proximity function, where N represents the adaptive filtering window centered at i, S represents the structural region, and US represents the flat region.

[0118] An adaptive filtering window algorithm based on CV-Kmeans region classification is used for smoothing, assuming Ω i SD(Ω) represents a square area centered at i. i ) and Ave (Ω) i The standard deviation and mean deviation of pixel gray levels in the neighborhood are represented respectively. The coefficient of variation (CV) of the original image is set to divide the cable image into defective and non-defective regions, as shown below:

[0119]

[0120] In the formula, CV(i) represents the coefficient of variation of the original figure, and SD(Ω) represents the coefficient of variation of the original figure. i Ave(Ω) represents the standard deviation of pixel gray levels within the neighborhood. i ) represents the average difference in gray levels of pixels within the neighborhood.

[0121] Because the pixel grayscale changes drastically in the defective area, therefore, SD(Ω) i A larger ) value corresponds to a larger CV value, and the grayscale distribution in non-defect areas is relatively uniform. SD(Ω) i A smaller K-means value corresponds to a smaller CV value. Using the K-means algorithm and CV values ​​for region classification, the adaptive filter window size selected for different regions is:

[0122]

[0123] A defect detection method based on Pearson correlation coefficient is used for defect judgment. Let the size of the original image X and the adaptive template Y be m×n, and let X(i,j) and Y(i,j) represent the gray value of each pixel in the original image and the template, respectively. and If X is the average gray value of the original image and the template, then the Pearson correlation coefficient ρ(X,Y) is:

[0124]

[0125] In the formula, ρ(X,Y) represents the Pearson correlation coefficient, cov(X,Y) represents the covariance of variables X and Y, X(i,j) represents the gray value of each pixel in the original image, Y(i,j) represents the gray value of each pixel in the template, m represents the number of samples for i, n represents the number of samples for j, D(X) represents the variance of variable X, and D(Y) represents the variance of variable Y. This represents the average grayscale value of the original image. This represents the average grayscale value of the template.

[0126] In the formula, cov(X,Y) represents the covariance of variables X and Y, and D(X) and D(Y) represent the variances of X and Y, respectively. When the cable surface is free of defects, the absolute value of ρ(X,Y) tends to 1; otherwise, it tends to 0. Setting an appropriate threshold ρ... h ,have:

[0127]

[0128] Defect extraction can be performed by using the cable region image F, which can be obtained through differential operations between the preprocessed image P and the smoothed background image Q.

[0129] F = |PQ|

[0130] Adaptive thresholding is applied to the cable region image F to obtain the location of defects on the cable surface. The threshold T2 is defined as follows:

[0131] T2=βσ F

[0132] In the formula, σ F Let be the standard deviation of the difference image, and β be a control factor. The defect regions are marked using connected component labeling on the thresholded image, and further logical judgments are performed. The detection precision is set to a mm, and each a mm segment in the image... 2 For a given n pixels, areas smaller than n pixels are considered noise, while areas larger than n pixels are considered defects.

[0133] Verification example:

[0134] A dataset consisting of 100 defective images and 100 defect-free images was used for verification. The results are shown in Table 1, proving that the invention is effective.

[0135] Table 1. Verification Results

[0136] Defective 100 98 98％ No defects 100 97 97％ comprehensive 200 195 97.5％

[0137] In this embodiment of the invention, the third circular frame is moved to a suitable position by the fourth electric telescopic rod, and the cable is pulled through the center of the third circular frame. The CCD camera captures the appearance image of the cable and sends it to the controller. The controller performs region segmentation and image preprocessing on the appearance image to obtain the preprocessed cable appearance image. A defect segmentation model is built based on the defect segmentation algorithm. The cable appearance image is input into the defect segmentation model to determine whether the cable has suffered appearance damage and generate appearance defect detection results.

[0138] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0139] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0140] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cable laying device for power construction, characterized in that, Includes a base plate, cable reel, cable reel drive module, cable stretching auxiliary module, cable length detection module, cable damage detection module, and controller; The cable reel is provided on one side of the upper end face of the base plate, and the cable reel drive module is provided on the front side of the cable reel. The cable reel drive module is connected to the cable reel drive, and the cable reel drive module is used to drive the cable reel to rotate, thereby causing the cable to be wound around the cable reel; On the other side of the upper surface of the base plate, from near to far from the cable reel, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are arranged sequentially. The cable stretching auxiliary module is used to heat and stretch the cable; The cable length detection module is used to detect the length of the cable; The cable damage detection module is used to inspect the appearance of the cable; The cable reel drive module, the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module are all electrically connected to the controller; The cable stretching auxiliary module includes a first electric telescopic rod, a first circular frame, a second electric telescopic rod, a first circular plate, a first roller assembly, and a heating assembly; The first circular frame is fixedly installed at the top of the first electric telescopic rod; The first circular frame has a plurality of second electric telescopic rods evenly arranged inside, and the first circular plate is provided on the second electric telescopic rods; The first roller assembly is provided at the inner center of the first annular plate, and the first roller assembly is used to contact the cable; The heating components are uniformly arranged on the outer side of the first annular plate, and the heating components are used to heat the cable; The first electric telescopic rod, the second electric telescopic rod, and the heating assembly are all electrically connected to the controller; The cable length detection module includes a third electric telescopic rod, a second circular frame, a fourth electric telescopic rod, a second circular plate, a second roller assembly, and a rotation sensor; The second circular frame is fixedly installed at the top of the third electric telescopic rod; The second circular frame has a plurality of fourth electric telescopic rods evenly arranged inside, and the second circular plate is provided on the fourth electric telescopic rod; The second roller assembly is disposed at the inner center of the second annular plate, and the second roller assembly is used to contact the cable; The rotation sensor is disposed on the second roller assembly; The third electric telescopic rod, the fourth electric telescopic rod, and the rotation sensor are all electrically connected to the controller.

2. The cable laying device for power construction according to claim 1, characterized in that, The cable reel drive module includes a bracket, a motor mounting plate, and a rotary motor; The bracket is fixedly installed on one side of the upper end face of the base plate, and the cable reel is rotatably installed on the bracket, with a cable wound on the cable reel; The motor mounting plate is fixedly installed on the front side of the bracket, and the rotary motor is installed on the top of the motor mounting plate; The output end of the rotary motor is fixedly connected to the cable reel, and the rotary motor is used to drive the cable reel to rotate; The rotary motor is electrically connected to the controller.

3. The cable laying device for power construction according to claim 1, characterized in that, The cable damage detection module includes a fifth electric telescopic rod, a third circular frame, and a CCD camera; The third circular frame is fixedly installed at the top of the fifth electric telescopic rod; The CCD camera is installed inside the third circular frame, and the CCD camera is used to capture an image of the appearance of the cable passing through the center of the third circular frame. Both the fifth electric telescopic pole and the CCD camera are electrically connected to the controller.

4. The cable laying device for power construction according to claim 1, characterized in that, It also includes a mobile module; The moving module is installed on the lower end face of the base plate. The moving module is used to drive the power construction cable laying device to the designated working position.

5. A method for monitoring the laying of power cables during construction, characterized in that, The method is applied to the cable laying device for power construction according to any one of claims 1-4, wherein the cable laying device for power construction includes a base plate, a cable reel, a cable reel driving module, a cable stretching auxiliary module, a cable length detection module, a cable damage detection module, and a controller, and the method includes: The controller activates the cable reel drive module mounted on the base plate, which drives the cable reel to rotate, causing the cable to extend from the cable reel and pass through the cable stretching auxiliary module, the cable length detection module, and the cable damage detection module in sequence. The cable is stretched using the cable stretching assistance module. The cable length is detected by the cable length detection module. The cable damage detection module is used to detect the external damage to the cable.

6. The method for monitoring the laying of power construction cables according to claim 5, characterized in that, The cable stretching assistance module includes a first electric telescopic rod, a first circular frame, a second electric telescopic rod, a first circular plate, a first roller assembly, and a heating assembly. The step of stretching the cable using the cable stretching assistance module includes: The first circular frame is moved to the designated position using the first electric telescopic rod; The first annular plate is moved to the designated position by the second electric telescopic rod; The cable is pulled through the first roller assembly located at the center of the first annular plate, and the heating assembly heats the first annular plate, transferring the heat to the cable.

7. The method for monitoring the laying of power construction cables according to claim 5, characterized in that, The cable length detection module includes a third electric telescopic rod, a second circular frame, a fourth electric telescopic rod, a second circular plate, a second roller assembly, and a rotation sensor. The step of detecting the cable length using the cable length detection module includes: The second circular frame is moved to the designated position by the third electric telescopic rod; The second annular plate is moved to the designated position by the fourth electric telescopic rod; Pull the extended cable through the center of the second annular plate, so that it contacts the second roller assembly; Pulling the cable causes the second roller assembly to rotate. The rotation sensor detects the number of rotations of the second roller assembly and sends it to the controller. The length of the cable is determined by pre-setting the length of one rotation of the second roller assembly inside the controller, and by using the length of one rotation of the second roller assembly and the total number of rotations.

8. The method for monitoring the laying of power construction cables according to claim 7, characterized in that, The cable damage detection module includes a fifth electric telescopic rod, a third circular frame, and a CCD camera. The steps for detecting the external damage of the cable using the cable damage detection module include: The third circular frame is moved to the designated position by the fifth electric telescopic rod; Pull the cable through the center of the third circular frame; The CCD camera is used to capture images of the cable's appearance, which are then sent to the controller. The controller performs region segmentation and image preprocessing on the appearance image to obtain a preprocessed cable appearance image. A defect segmentation model is built based on a defect segmentation algorithm. The cable appearance image is input into the defect segmentation model for appearance defect detection, and appearance defect detection results are generated.

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