Perforating quality evaluation method for traffic road construction

Abstract

The invention relates to the technical field of image data processing, in particular to a traffic road construction punching quality evaluation method, which comprises the following steps of: acquiring a punching hole form graph in a traffic road construction process through an ultrasonic detection probe, analyzing the hole form graph to determine the influence degree of mud bubbles on the hole form graph, and determining the punching quality when the influence degree characterizes reasonably; determining at least one real punching deviation area of the hole form graph, analyzing the influence degree of the hole form graph on the basis of mud bubbles, performing subsequent analysis under the condition of ensuring that the influence degree is reasonable, and improving the punching quality evaluation accuracy; performing false hole shrinkage analysis on the real punching offset areas, determining target real punching offset areas caused by rotation of the ultrasonic detection probe, and determining the punching quality according to the first number of the real punching offset areas and the second number of the target real punching offset areas, and the accuracy of punching quality evaluation can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of image data processing, and particularly to a method for evaluating the quality of drilling holes in traffic road construction. Background Art

[0002] In current road construction, automated or semi-automated drilling machines are used for drilling operations, which can effectively improve the drilling efficiency, but also put forward higher requirements for the evaluation of drilling quality. At present, ultrasonic detection is used to evaluate the drilling quality, which has the advantages of high precision and non-contact with the hole wall. During the process of evaluating the drilling quality, it is usually carried out after the first hole cleaning and before the second hole cleaning. Since there may be suspended small bubbles in the mud after the first hole cleaning, which are not easy to identify compared with the bubbles on the mud surface, the bubbles in the mud will consume a large amount of acoustic energy, resulting in a weak returned acoustic signal and unable to accurately identify the hole wall. At the same time, due to the existence of mud bubbles, the ultrasonic detection probe may rotate, resulting in an inaccurate hole shape diagram obtained, affecting the accuracy of subsequent evaluation of drilling quality. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a method for evaluating the quality of drilling holes in traffic road construction, and the specific technical solutions adopted are as follows: In a first aspect, an embodiment of the present invention provides a method for evaluating the quality of drilling holes in traffic road construction, including: Obtaining a hole shape diagram of a drilled hole during the traffic road construction process through an ultrasonic detection probe, and analyzing the hole shape diagram to determine the degree of influence of the hole shape diagram by mud bubbles; When the degree of influence is characterized as reasonable, determining at least one real drilling deviation area of the hole shape diagram; Performing false shrinkage analysis on the real drilling deviation area to determine a target real drilling deviation area caused by the rotation of the ultrasonic detection probe; Determining the drilling quality according to the first quantity of the real drilling deviation area and the second quantity of the target real drilling deviation area.

[0004] In an implementation manner, the hole shape diagram includes sub-hole shape diagrams in different directions; the analyzing the hole shape diagram to determine the degree of influence of the hole shape diagram by mud bubbles includes: Determining the aperture change characteristic area in each sub-hole shape diagram in different directions, performing grayscale processing and threshold segmentation processing on each sub-hole shape diagram to obtain the segmented sub-hole shape diagrams corresponding to different directions; In the segmented sub-hole shape diagrams corresponding to each direction respectively, determine the third quantity of the highlighted pixel points in the aperture change characteristic region, the fourth quantity of the highlighted pixel points outside the aperture change characteristic region, and the degree of dispersion; Based on the third quantity, the fourth quantity, and the degree of dispersion of the segmented sub-hole shape diagrams corresponding to each direction, determine the degree of influence of the mud bubbles on the hole shape diagram.

[0005] In one implementation, the determining the degree of influence of the mud bubbles on the hole shape diagram based on the third quantity, the fourth quantity, and the degree of dispersion of the segmented sub-hole shape diagrams corresponding to each direction includes: Respectively determine the difference between the third quantity and the fourth quantity of the segmented sub-hole shape diagrams corresponding to each direction, and the first product of the difference and the degree of dispersion; Based on the ratio of the sum of the first products to the number of directions, determine the degree of influence of the mud bubbles on the hole shape diagram.

[0006] In one implementation, the determining at least one actual punching offset region of the hole shape diagram when the degree of influence is characterized as reasonable includes: When the degree of influence is characterized as reasonable, respectively process the sub-hole shape diagrams in different directions through an edge detection algorithm to determine the edges of the sub-hole shape diagrams in each direction; Based on the edges of the sub-hole shape diagrams in each direction, determine at least one punching offset region in different directions; Determine the authenticity value of each punching offset region, and determine the punching offset regions with authenticity values greater than the true threshold as actual punching offset regions to obtain at least one actual punching offset region of the hole shape diagram; Wherein, when the degree of influence is greater than the reasonable threshold, it is determined that the degree of influence is characterized as reasonable.

[0007] In one implementation, the determining the authenticity value of each punching offset region includes: Respectively determine the Euclidean distance between each punching offset region and the remaining punching offset regions in another direction, and respectively determine the reference punching offset region corresponding to the minimum Euclidean distance from the remaining punching offset regions in another direction to obtain the reference punching offset region corresponding to each punching offset region; Respectively based on the punching offset region and the corresponding reference punching offset region, determine the consistency value of the offset direction and the position authenticity of each punching offset region; Determine the authenticity value of each punched offset area according to the consistency value of the offset direction and the position authenticity respectively.

[0008] In one implementation, determining the position authenticity of each punched offset area according to the punched offset area and the corresponding reference punched offset area respectively includes: Determine the first starting position coordinate and the first ending position coordinate of each punched offset area in the vertical direction of the image, and determine the second starting position coordinate and the second ending position coordinate of each corresponding reference punched offset area of each punched offset area; Determine the first position coordinate combination according to the first starting position coordinate and the first ending position coordinate, determine the second position coordinate combination according to the second starting position coordinate and the second ending position coordinate, and determine the union of the first position coordinate combination and the second position coordinate combination corresponding to each punched offset area respectively; Respectively determine the target position coordinate combination with the largest length in the first position coordinate combination and the second position coordinate combination in each punched offset area, and the target Euclidean distance corresponding to the union of the target position coordinate combination; Determine the normalization value according to the target Euclidean distance and the normalization function respectively, and determine the position authenticity of each punched offset area according to the reciprocal of the sum value of the normalization value and the preset value.

[0009] In one implementation, determining the authenticity value of each punched offset area according to the consistency value of the offset direction and the position authenticity respectively includes: Determine the authenticity value of each punched offset area according to the second product of the consistency value of the offset direction and the position authenticity respectively.

[0010] In one implementation, performing a false necking analysis on the true punched offset area to determine the target true punched offset area caused by the rotation of the ultrasonic detection probe includes: Determine whether the offset directions of the edges on different sides in each true punched offset area are the same; where the up-down direction is one side and the left-right direction is the other side; Take the true punched offset area with the same offset directions of the edges on different sides as the target true punched offset area caused by the rotation of the ultrasonic detection probe; Determine the candidate true punched offset areas with different offset directions of the edges on different sides, and determine the false necking degree value corresponding to each candidate true punched offset area; Determine the candidate true punching offset area with the false necking degree value less than or equal to the degree threshold as the target true punching offset area caused by the rotation of the ultrasonic detection probe.

[0011] In one implementation manner, the determining the false necking degree value corresponding to each candidate true punching offset area includes: Respectively determine, in each candidate true punching offset area, the outward expansion distance on one side, the outward expansion distance change curve, the contraction distance on the other side, and the contraction distance change curve; Respectively determine the similarity degree between the outward expansion distance and the contraction distance, and respectively determine the DTW distance between the outward expansion distance change curve and the contraction distance change curve; Determine the first sum value of the similarity degree and a preset value and the second sum value of the DTW distance and a preset value; Respectively determine the false necking degree value corresponding to each candidate true punching offset area according to the third product of the reciprocal of the first sum value and the reciprocal of the second sum value.

[0012] In one implementation manner, the determining the punching quality according to the first quantity of the true punching offset area and the second quantity of the target true punching offset area includes: Determine the effectiveness degree of the hole shape diagram according to the ratio of the second quantity to the first quantity; Determine the punching quality according to the effectiveness degree and the degree threshold.

[0013] The present invention has the following beneficial effects: Obtain the hole shape diagram of punching during the construction of the traffic road through the ultrasonic detection probe, analyze the hole shape diagram, determine the influence degree of the hole shape diagram by the mud bubbles. When the influence degree is reasonable, determine at least one true punching offset area of the hole shape diagram. Based on the analysis of the influence degree of the hole shape diagram by the mud bubbles, ensure that subsequent analysis is carried out under the condition that the influence degree is reasonable, and improve the accuracy of punching quality evaluation; conduct false necking analysis on the true punching offset area, determine the target true punching offset area caused by the rotation of the ultrasonic detection probe, and determine the punching quality according to the first quantity of the true punching offset area and the second quantity of the target true punching offset area. By analyzing the target true punching offset area caused by the rotation of the ultrasonic detection probe to determine the punching quality, it is beneficial to improve the accuracy of punching quality evaluation. Description of the Drawings

[0014] To more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 Schematic diagram of the step flow of a method for evaluating the quality of punching holes in traffic road construction provided by an embodiment of the present invention; Figure 2 Schematic diagrams of various directions during the detection process of an ultrasonic detection probe provided by an embodiment of the present invention; Figure 3 Schematic diagram of sub-hole shape diagrams in different directions provided by an embodiment of the present invention; Figure 4 Schematic diagram of each segmented sub-hole shape diagram provided by an embodiment of the present invention; Figure 5 Schematic diagram of the false necking phenomenon provided by an embodiment of the present invention; Figure 6 Schematic diagram of the area where the punching hole is offset provided by an embodiment of the present invention. Detailed implementation manners

[0016] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in combination with the accompanying drawings and preferred embodiments, will describe in detail a method for evaluating the quality of punching holes in traffic road construction proposed according to the present invention, its specific implementation manners, structures, features, and effects. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0018] It should be noted that the "exemplary" in the embodiments of the present invention refers to examples listed for convenience of description, and in other embodiments, it is not limited to the listed examples.

[0019] The following will specifically describe the specific solution of a method for evaluating the quality of punching holes in traffic road construction provided by the present invention in combination with the accompanying drawings.

[0020] Please refer to Figure 1, which shows a flowchart of a method for evaluating the quality of drilling holes in traffic road construction provided by an embodiment of the present invention. The method for evaluating the quality of drilling holes in traffic road construction may at least include steps S100 - S400: S100. Obtain a hole shape diagram of the drilling hole during the traffic road construction process through an ultrasonic detection probe, and analyze the hole shape diagram to determine the degree of influence of the hole shape diagram by mud bubbles.

[0021] S200. When the degree of influence is characterized as reasonable, determine at least one real drilling deviation area of the hole shape diagram.

[0022] S300. Conduct a false diameter reduction analysis on the real drilling deviation area to determine the target real drilling deviation area caused by the rotation of the ultrasonic detection probe.

[0023] S400. Determine the drilling quality according to the first quantity of the real drilling deviation area and the second quantity of the target real drilling deviation area.

[0024] The technical solution of the embodiment of the present invention obtains a hole shape diagram of the drilling hole during the traffic road construction process through an ultrasonic detection probe, analyzes the hole shape diagram, and determines the degree of influence of the hole shape diagram by mud bubbles. When the degree of influence is characterized as reasonable, at least one real drilling deviation area of the hole shape diagram is determined. Based on the analysis of the degree of influence of the hole shape diagram by mud bubbles, subsequent analysis is carried out under the condition that the degree of influence is reasonable, improving the accuracy of drilling quality evaluation; conduct a false diameter reduction analysis on the real drilling deviation area to determine the target real drilling deviation area caused by the rotation of the ultrasonic detection probe, and determine the drilling quality according to the first quantity of the real drilling deviation area and the second quantity of the target real drilling deviation area. By analyzing the target real drilling deviation area caused by the rotation of the ultrasonic detection probe to determine the drilling quality, it is beneficial to improve the accuracy of drilling quality evaluation.

[0025] In one implementation manner, in step S100, after several drillings are performed during the traffic road construction process, the ultrasonic detection probe of the hole quality ultrasonic detector is placed into the hole filled with mud at the actual required rate. When an electrical pulse generated by the transmitting circuit of the hole quality ultrasonic detector is applied to its transmitting transducer, the transducer emits an ultrasonic pulse perpendicular to the hole wall. The ultrasonic wave propagates in the mud and is partially reflected after reaching the hole wall. The reflected ultrasonic wave is received by the receiving transducer and, after signal processing such as amplification and filtering, a corresponding hole shape diagram can be obtained. After further processing, drilling parameters such as hole diameter, hole depth, and perpendicularity can be obtained. In the embodiment of the present invention, such as Figure 2 and Figure 3As shown, the hole shape diagram may include sub-hole shape diagrams in different directions, specifically including sub-hole shape diagrams in the upper direction (x1), the lower direction (x2), the left direction (y2), and the right direction (y1), wherein the upper direction (x1) and the lower direction (x2) are on the same side, that is, they belong to one side (also called the first side), and the left direction (y2) and the right direction (y1) are on the same side, that is, the other side (also called the second side), wherein the ultrasonic detection probe is initially located at the center of the hole, and the movement trajectory during the detection process is the Z direction perpendicular to the X-axis and the Y-axis (not shown in the figure), and the Z direction can also be called vertically downward.

[0026] It should be noted that since the bubbles inside the mud are difficult to distinguish with the naked eye, when there are bubbles in the mud, the ultrasonic wave will be strongly reflected when encountering the bubbles, resulting in a significant increase in the amplitude of the reflected wave, which is manifested as a large number of scattered points in the aperture diagram. Therefore, we first determine whether the acquired aperture diagram is seriously affected by the mud bubbles based on the distribution of the scattered points, and analyze the degree to which the aperture diagram is affected by the mud bubbles.

[0027] In one embodiment, the hole shape diagram is analyzed in step S100 to determine the degree to which the hole shape diagram is affected by the mud bubbles, including steps S101-S103: S101, respectively determining aperture variation characteristic regions in the sub-hole shape images in different directions, performing grayscale processing and threshold segmentation processing on each sub-hole shape image, and obtaining segmented sub-hole shape images corresponding to each different direction.

[0028] Optionally, Figure 3 A, B, C, and D in the figure represent the aperture change characteristic areas of the sub-hole shape images in different directions, so the areas will be marked respectively to determine the aperture change characteristic areas, and then each sub-hole shape image will be grayed out. Then, the grayed hole shape image will be threshold segmented using the OTSU (Otsu's method) threshold segmentation method to obtain the segmented sub-hole shape images corresponding to different directions, such as Figure 4 shown.

[0029] S102, respectively determining, in the segmented sub-aperture shape image corresponding to each direction, a third number of highlighted pixel points in the aperture variation characteristic region, a fourth number of highlighted pixel points excluding the aperture variation characteristic region, and a degree of discreteness.

[0030] Optionally, a third number of highlighted pixels in the aperture variation feature area in the segmented sub-aperture image corresponding to each direction is determined respectively. (No. The number of highlighted pixels in the aperture change feature area of ​​the segmented sub-aperture shape graph in each direction), the fourth number of highlighted pixels outside the aperture change feature area (No. The number of highlighted pixels in the sub-hole shape diagram divided in each direction excluding the aperture change feature region) and the degree of dispersion of the highlighted pixels excluding the aperture change feature region (the degree of dispersion corresponding to the sub-hole shape diagram divided in each direction), and this degree of dispersion can be obtained by calculating the variance and will not be elaborated here.

[0031] S103. Determine the degree of influence of the hole shape diagram by mud bubbles according to the third quantity, the fourth quantity, and the degree of dispersion of the sub-hole shape diagrams corresponding to each direction.

[0032] Specifically, determine the difference between the third quantity and the fourth quantity corresponding to the sub-hole shape diagram divided in each direction, and the first product of the difference and the degree of dispersion . Determine the degree of influence of the hole shape diagram by mud bubbles according to the ratio of the sum of each first product to the number of directions , and the formula is:[[]]ID=21 where, when is negative, it means that the number of pixels distributed in the region outside the aperture change feature region in the th direction is greater than the aperture change feature region, and the corresponding th direction is more affected by mud bubbles. However, due to the situation where data points are concentrated in one or more regions, this situation may be caused by the quality problem of the drilling itself. Therefore, the value of is used to correct the value of to obtain a more accurate degree of influence .

[0033] In one implementation, step S200 includes steps S201 - S203: S201. When the degree of influence indicates reasonableness, process the sub-hole shape diagrams in each different direction through an edge detection algorithm respectively to determine the edge of the sub-hole shape diagram in each direction.

[0034] Optionally, when the degree of influence is greater than the reasonable threshold 0, it is determined that the degree of influence indicates reasonableness. When is greater than 0, it means that the obtained aperture diagram is not seriously affected by mud bubbles. Otherwise, it means that it is seriously affected by mud bubbles, and it is necessary to use a drilling quality ultrasonic detector to re-measure after a period of time, that is, return to step S100.

[0035] It should be noted that on the premise that the aperture diagram is not severely affected by mud bubbles, the subsequent judgment of the effectiveness of the aperture diagram continues. Since the ultrasonic detection probe cannot rotate during operation, if it rotates, it will cause a change in the ultrasonic emission and reception directions, thereby affecting the accuracy of the collected data. Therefore, it is necessary to analyze the hole shape change diagram to determine whether the ultrasonic detection probe rotates during the detection process. In addition, as Figure 5 shown, when using the ultrasonic detection probe to evaluate the drilling quality, a false diameter reduction phenomenon usually occurs. It is manifested as when the drilling on one side is offset, the aperture on the other side will shrink. This situation is caused by the offset of the drilling, resulting in the ultrasonic detection probe not being at the center of the drilling, which is a factor to be considered in subsequent analysis.

[0036] S202. Determine at least one drilling offset area in different directions according to the edges of the sub-hole shape diagrams in each direction.

[0037] Optionally, use the Canny edge detection algorithm to detect the edges of the sub-hole shape diagrams in each direction (4 directions) respectively, and then determine at least one drilling offset area according to the change of the edges of the sub-hole shape diagrams in two directions on the same side (for example, x1 and x2, or y1 and y2), that is, there may be one or more drilling offset areas. For example, taking the vertical direction starting from the upper edge of the sub-hole shape diagram in each direction as the reference direction (since there are two edge lines on the same side, any one of the edge lines is selected for calculation), the drilling edge deviating from the reference direction is the offset drilling edge, and when the drilling is offset, the offset directions of the edges of the sub-hole shape diagrams in two directions on the same side are also the same. For example, an offset to the left is an inward offset, and an offset to the right is an outward offset. As Figure 6 shown, the enclosed areas E1 and E2 in the two examples are the drilling offset areas where the drilling is offset.

[0038] S203. Determine the authenticity value of each drilling offset area, and determine the drilling offset area with the authenticity value greater than the true threshold as the true drilling offset area, so as to obtain at least one true drilling offset area of the hole shape diagram.

[0039] Optionally, determining the authenticity value of each drilling offset area includes: First, determine the Euclidean distance between each drilling offset area and the remaining drilling offset areas in the other direction (that is, the other direction on the same side) respectively, and determine the reference drilling offset area corresponding to the minimum Euclidean distance from the remaining drilling offset areas in the other direction respectively, so as to obtain the reference drilling offset area corresponding to each drilling offset area.

[0040] Secondly, based on the offset regions where the punching occurs and the corresponding reference offset regions where the punching occurs, determine the consistency value of the offset direction and the position authenticity of each offset region where the punching occurs.

[0041] Among them, when the offset direction of the offset region where the punching occurs is the same as that of the corresponding reference offset region where the punching occurs, the consistency value of the offset direction is the first numerical value, such as 1. When they are different, the consistency value of the offset direction is the second numerical value, such as 0.

[0042] In addition, the steps to determine the position authenticity of each offset region where the punching occurs specifically include: 1. First, determine the first starting position coordinate and the first ending position coordinate of each offset region where the punching occurs in the vertical direction of the image. Determine the first position coordinate combination (i.e., the position coordinate combination of the th offset region where the punching occurs), and determine the second starting position coordinate and the second ending position coordinate of each corresponding reference offset region where the punching occurs. Determine the second position coordinate combination (i.e., the position coordinate combination of the reference offset region corresponding to the th offset region where the punching occurs). In addition, respectively determine the union of the first position coordinate combination and the second position coordinate combination corresponding to each offset region where the punching occurs.

[0043] 2. Secondly, in each offset region where the punching occurs, respectively determine the target position coordinate combination with the largest length in the first position coordinate combination and the second position coordinate combination, such as the combination formed by the starting position and the ending position with the largest distance length between the starting position and the ending position, and the target Euclidean distance between the target position coordinate combination and the union. The calculation of the Euclidean distance is an existing method and will not be elaborated here. In addition, it should be noted that the above-mentioned determination of the reference offset region corresponding to the smallest Euclidean distance, that is, determining and the reference offset region corresponding to the smallest Euclidean distance between them.

[0044] 3. Respectively, based on the target Euclidean distance and the normalization function , determine the normalization value . According to the reciprocal of the sum value of the normalization value and the preset numerical value (such as 1), determine the position authenticity of each offset region where the punching occurs. The formula is: In the formula, Indicates The location authenticity of the area where the punch hole is offset; The larger the value, the The higher the accuracy of the location of the area where the punch hole is offset.

[0045] Then, according to the consistency value of the offset direction (i.e. The consistency value of the offset direction of the offset area of ​​the punch hole and the corresponding reference punch hole offset area) and the position authenticity , determine the authenticity value of each perforation offset area. Specifically, according to the consistency value of the offset direction and location authenticity The second product of determines the authenticity value of each perforation offset area , the formula is: In the formula, Indicates The authenticity value of the area where the punch hole is offset.

[0046] Among them, in S203, the authenticity value of each punching offset area is determined Then, the authenticity value The perforation deviation region greater than the real threshold (for example, 0.7) is determined as the real perforation deviation region, and at least one real perforation deviation region of the hole shape diagram is obtained, which is recorded as the first There are M real punching deviation areas in total. Figure 6 As shown, the actual punching deviation area is the area between the horizontal lines F1 and F2.

[0047] It should be noted that for The area where the actual punching occurs is offset, and the hole diameter on the other side should be in a shrinking state, so the distance between the two edge lines should decrease with the first The larger the expansion degree (i.e., the offset distance), the larger the contraction degree between the two edge lines on the other side (i.e., the degree of change in the interval between the two edge lines).

[0048] In one implementation, step S300 includes steps S301-S304: S301: Determine whether the offset directions of the edges on different sides of each real punching offset region are the same.

[0049] Optionally, it is determined whether the offset directions of the edges on different sides in each true punching offset area are the same. Specifically, it can be determined whether the offset directions of the edges on different sides (such as the edge lines) are the same. If they all offset to the left (inward offset) or all offset to the right (outward offset), the offset directions of the edges are the same; otherwise, they are different. For example, the judgment is similar.

[0050] S302: Use the true punching offset areas where the offset directions of the edges on different sides are the same as the target true punching offset areas caused by the rotation of the ultrasonic detection probe.

[0051] Optionally, the same offset directions of the edges on different sides indicate that the condition of false necking is not met. At this time, the corresponding true punching offset area may be caused by the rotation of the ultrasonic detection probe. Therefore, this true punching offset area is used as the target true punching offset area caused by the rotation of the ultrasonic detection probe, and the quantity is recorded as 1.

[0052] S303: Determine the candidate true punching offset areas where the offset directions of the edges on different sides are different, and determine the false necking degree value corresponding to each candidate true punching offset area.

[0053] Optionally, different offset directions of the edges on different sides, that is, opposite directions, indicate that the condition of false necking is met, and subsequent further analysis and calculation of the false necking degree value are required. Therefore, the true punching offset areas where the offset directions of the edges on different sides are different are used as candidate true punching offset areas, recorded as the th candidate true punching offset area. Then, determine the false necking degree value corresponding to each candidate true punching offset area, specifically including: First, respectively determine the outward expansion distance (that is, the outward expansion distance on one side of the th candidate true punching offset area), the outward expansion distance change curve (that is, the outward expansion distance change curve on one side of the th candidate true punching offset area), the contraction distance (that is, the contraction distance on the other side of the th candidate true punching offset area), and the contraction distance change curve (that is, the contraction distance change curve on the other side of the th candidate true punching offset area) in each candidate true punching offset area.

[0054] For example, if one side is the side of x1 and x2, then the other side is the side of y1 and y2; if one side is the side of y1 and y2, then the other side is the side of x1 and x2; the outer expansion distance change curve is composed of the distance between the straight line in the candidate true punching offset area on one side and the reference direction, and the outer expansion distance That is, the longest distance between the straight line in the candidate true punching offset area on one side and the reference direction; the contraction distance change curve is composed of the distance between the straight line in the candidate true punching offset area on the other side and the reference direction, and the contraction distance That is, the shortest distance between the straight line in the candidate true punching offset area on the other side and the reference direction.

[0055] Secondly, determine the similarity degree of the outer expansion distance and the contraction distance respectively, and determine the DTW distance between the outer expansion distance change curve and the contraction distance change curve respectively. The DTW distance .

[0056] Furthermore, determine the first sum value of the similarity degree and a preset value (such as 1) and the second sum value of the DTW distance and the preset value .

[0057] Finally, determine the false necking degree value corresponding to each candidate true punching offset area respectively according to the third product of the reciprocal of the first sum value and the reciprocal of the second sum value. The formula is: In the formula, represents the false necking degree value corresponding to the th candidate true punching offset area; A small value indicates that the overall outer expansion degree on one side and the overall contraction degree on the other side of the th candidate true punching offset area are more similar, A smaller value indicates that the outer expansion distance change trend on one side and the contraction distance change trend on the other side of the th candidate true punching offset area are more similar, and the th candidate true punching offset area corresponding to it is more in line with the performance of false necking, and the corresponding false necking degree value is larger.

[0058] S304. Determine the candidate true punching offset area with a false necking degree value less than or equal to the degree threshold as the target true punching offset area caused by the rotation of the ultrasonic detection probe.

[0059] Optionally, if the false necking degree value Greater than the degree threshold (e.g., 0.5), then the corresponding candidate true punching offset area performs normally. Conversely, if the false necking degree value is less than or equal to the degree threshold (e.g., 0.5), then the corresponding candidate true punching offset area performs abnormally, and the candidate true punching offset area is determined to be the target true punching offset area caused by the rotation of the ultrasonic detection probe, and the quantity is denoted as L2. Therefore, the first quantity M of the true punching offset area can be finally determined, and then according to the sum of L1 and L2, the second quantity of the target true punching offset area is determined .

[0060] In one embodiment, step S400 includes steps S401 - S402: S401. Determine the effective degree of the hole shape diagram according to the ratio of the second quantity and the first quantity .

[0061] Specifically, the calculation formula for the effective degree of the hole shape diagram is: S402. Determine the punching quality according to the effective degree and the degree threshold.

[0062] Optionally, the degree threshold is assumed to be 0.3. When the value of the effective degree of the hole shape diagram is greater than 0.3, it indicates that the effective degree of the obtained hole shape diagram is poor, that is, the punching quality is poor, and the accuracy of the evaluation result of the punching quality will be reduced, prompting professional inspectors to re - measure using the ultrasonic detection probe; while if the value of the effective degree of the hole shape diagram is less than or equal to 0.3, it means that the punching quality is good, and professional inspectors can accurately evaluate the punching quality of traffic road construction by analyzing the hole shape diagram and combining industry standards.

[0063] The method of the embodiment of the present invention introduces the influence degree of the hole shape diagram by mud bubbles and false necking analysis, determines the target true punching offset area caused by the rotation of the ultrasonic detection probe, and then determines the punching quality. Compared with the existing method, it can effectively analyze the influence of mud bubbles and the offset of the ultrasonic probe on the hole shape diagram, and avoid obtaining inaccurate punching quality evaluation results due to inaccurate analysis of the hole shape diagram.

[0064] It should be noted that the above sequence of embodiments of the present invention is only for description and does not represent the superiority or inferiority of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0065] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

Claims

1. A method for evaluating the quality of drilling holes in traffic road construction, characterized in that: The method comprises: Obtaining a hole shape diagram of holes drilled during traffic road construction by using an ultrasonic detection probe, and analyzing the hole shape diagram to determine the degree to which the hole shape diagram is affected by mud bubbles; When the influence degree is characterized as reasonable, determining at least one real perforation deviation region of the hole shape diagram; Performing a false reduction analysis on the deviation area of ​​the real drilling to determine the deviation area of ​​the target real drilling caused by the rotation of the ultrasonic detection probe; The punching quality is determined according to the first number of the real punching deviation regions and the second number of the target real punching deviation regions.

2. The method for evaluating the quality of drilling holes in traffic road construction according to claim 1 is characterized in that: The hole shape diagram includes sub-hole shape diagrams in different directions; and analyzing the hole shape diagram to determine the degree to which the hole shape diagram is affected by mud bubbles includes: Determine the aperture change characteristic area in the sub-hole shape images in different directions respectively, perform grayscale processing and threshold segmentation processing on each sub-hole shape image, and obtain the segmented sub-hole shape images corresponding to different directions; Determine respectively in each direction the third number of highlighted pixels in the aperture variation characteristic region, the fourth number of highlighted pixels outside the aperture variation characteristic region, and the degree of discreteness; The degree to which the hole shape diagram is affected by the mud bubbles is determined according to the third number, the fourth number and the discrete degree of the segmented sub-hole shape diagrams corresponding to each direction.

3. The method for evaluating the quality of drilling holes in traffic road construction according to claim 2 is characterized in that: Determining the degree to which the hole shape diagram is affected by the mud bubbles according to the third number, the fourth number, and the discrete degree of the segmented sub-hole shape diagrams corresponding to each direction comprises: Determine respectively the difference between the third number and the fourth number of segmented sub-hole shape graphs corresponding to each direction, and a first product of the difference and the discrete degree; The degree to which the hole pattern is affected by the mud bubbles is determined according to the ratio of the sum of the first products to the number of the directions.

4. The method for evaluating the quality of drilling holes in traffic road construction according to claim 2 is characterized in that: When the influence degree is characterized reasonably, determining at least one real perforation deviation region of the hole shape diagram includes: When the influence degree is characterized reasonably, the sub-hole shape graphs in different directions are processed respectively by edge detection algorithms to determine the edge of the sub-hole shape graph in each direction; Determine, according to the edge of the sub-hole pattern in each direction, a region where at least one perforation in a different direction is offset; Determine the authenticity value of each of the perforation offset regions, determine the perforation offset regions whose authenticity values ​​are greater than a true threshold as true perforation offset regions, and obtain at least one true perforation offset region of the hole shape diagram; When the impact degree is greater than a reasonable threshold, it is determined that the impact degree is reasonable.

5. The method for evaluating the quality of drilling holes in traffic road construction according to claim 4 is characterized by: Determining the authenticity value of each of the punching offset regions includes: Determine the Euclidean distance between each of the perforation offset regions and the remaining perforation offset regions in the other direction, and determine the reference perforation offset region corresponding to the minimum Euclidean distance from the remaining perforation offset regions in the other direction, to obtain the reference perforation offset region corresponding to each of the perforation offset regions; Determine the consistency value of the offset direction and the position authenticity of each of the offset punching areas according to the offset punching areas and the corresponding reference offset punching areas; The authenticity value of each of the punching offset regions is determined based on the consistency value of the offset direction and the position authenticity.

6. The method for evaluating the quality of drilling holes in traffic road construction according to claim 5 is characterized by: Determining the position authenticity of each of the perforation offset regions according to the perforation offset regions and the corresponding reference perforation offset regions includes: Determine the first starting point position coordinates and the first end point position coordinates of each of the punch hole offset regions in the vertical direction of the image, and determine the second starting point position coordinates and the second end point position coordinates of each of the reference punch hole offset regions corresponding to each of the punch hole offset regions; Determine a first position coordinate combination according to the first starting position coordinate and the first end position coordinate, determine a second position coordinate combination according to the second starting position coordinate and the second end position coordinate, and respectively determine a union of the first position coordinate combination and the second position coordinate combination corresponding to each of the punching offset regions; Determine respectively in each of the punching offset regions the target position coordinate combination with the largest length among the first position coordinate combination and the second position coordinate combination, and the target Euclidean distance between the target position coordinate combination and the union; A normalized value is determined according to the target Euclidean distance and the normalized function respectively, and the position authenticity of each of the punching offset regions is determined according to the inverse of the sum of the normalized value and a preset value.

7. The method for evaluating the quality of drilling holes in traffic road construction according to claim 5 is characterized by: Determining the authenticity value of each of the punching offset regions according to the consistency value of the offset direction and the position authenticity respectively includes: The authenticity value of each of the perforation offset regions is determined based on the consistency value of the offset direction and the second product of the position authenticity.

8. The method for evaluating the quality of drilling holes in traffic road construction according to claim 4 is characterized by: The performing of a false reduction analysis on the real drilling deviation region to determine the target real drilling deviation region caused by the rotation of the ultrasonic detection probe comprises: Determine whether the offset directions of the edges on different sides of each of the real punching offset regions are the same; wherein the up-down direction is one side and the left-right direction is the other side; The real drilling deviation regions with the same deviation direction on the edges of different sides are used as the target real drilling deviation regions caused by the rotation of the ultrasonic detection probe; Determine candidate real perforation offset regions with different offset directions on different side edges, and determine a false diameter reduction degree value corresponding to each candidate real perforation offset region; The candidate real drilling deviation region whose false diameter reduction degree value is less than or equal to the degree threshold is determined as the target real drilling deviation region caused by the rotation of the ultrasonic detection probe.

9. The method for evaluating the quality of drilling holes in traffic road construction according to claim 8, characterized in that: The step of determining the false reduction degree value corresponding to each candidate real perforation deviation region comprises: Respectively determine, in each candidate real perforation deviation region, an expansion distance and an expansion distance variation curve on one side, and a contraction distance and a contraction distance variation curve on the other side; respectively determining the similarity between the expansion distance and the contraction distance, and respectively determining the DTW distance between the expansion distance change curve and the contraction distance change curve; Determine a first sum of the similarity and a preset value and a second sum of the DTW distance and a preset value; The false diameter reduction degree value corresponding to each candidate real perforation offset region is determined according to the third product of the reciprocal of the first sum and the reciprocal of the second sum.

10. The method for evaluating the quality of drilling holes in traffic road construction according to claim 1, characterized in that: The determining of the punching quality according to the first number of the real punching offset regions and the second number of the target real punching offset regions comprises: determining the effectiveness of the hole diagram according to a ratio of the second number to the first number; The punching quality is determined according to the effectiveness level and the level threshold.

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