A method for evaluating the quality of drilling in traffic road construction

Abstract

The present invention relates to the technical field of image data processing, and particularly relates to a method for evaluating the quality of drilling holes in traffic road construction. By using an ultrasonic detection probe to obtain the hole shape diagram of the drilling holes during the traffic road construction process, the degree of influence of the hole shape diagram by mud bubbles is analyzed. When the degree of influence is reasonable, at least one real drilling hole offset 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 hole quality evaluation; false shrinkage analysis is carried out on the real drilling hole offset area to determine the target real drilling hole offset area caused by the rotation of the ultrasonic detection probe. According to the first quantity of the real drilling hole offset area and the second quantity of the target real drilling hole offset area, the drilling hole quality is determined, which is beneficial to improving the accuracy of drilling hole quality evaluation.

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 pose higher requirements for the evaluation of drilling quality. Currently, 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 easily recognizable 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, the presence of mud bubbles may cause the ultrasonic detection probe to rotate, resulting in an inaccurate hole shape diagram obtained, affecting the accuracy of subsequent evaluation of the 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 solution adopted is as follows:

[0004] 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:

[0005] Obtaining a hole shape diagram of the drilling during the traffic road construction process through an ultrasonic detection probe, and analyzing the hole shape diagram to determine the influence degree of the hole shape diagram affected by mud bubbles;

[0006] When the influence degree is characterized as reasonable, determining at least one real drilling offset area of the hole shape diagram;

[0007] Performing a false shrinkage analysis on the real drilling offset area to determine the target real drilling offset area caused by the rotation of the ultrasonic detection probe;

[0008] Determining the drilling quality according to the first quantity of the real drilling offset area and the second quantity of the target real drilling offset area.

[0009] 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 influence degree of the hole shape diagram affected by mud bubbles includes:

[0010] Determining the aperture change characteristic area in each sub-hole shape diagram in different directions, performing gray-scale processing and threshold segmentation processing on each sub-hole shape diagram to obtain the segmented sub-hole shape diagrams corresponding to different directions;

[0011] For each corresponding segmented sub-hole shape diagram in each direction, determine the third quantity of the highlighted pixel points in the aperture change feature region, the fourth quantity of the highlighted pixel points outside the aperture change feature region, and the degree of dispersion.

[0012] Based on the third quantity, the fourth quantity, and the degree of dispersion of each corresponding segmented sub-hole shape diagram in each direction, determine the degree of influence of the mud bubbles on the hole shape diagram.

[0013] In one implementation manner, 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 each corresponding segmented sub-hole shape diagram in each direction includes:

[0014] Respectively determine the difference between the third quantity and the fourth quantity of each corresponding segmented sub-hole shape diagram in each direction, and the first product of the difference and the degree of dispersion.

[0015] Based on the ratio of the sum of each of the first products to the number of directions, determine the degree of influence of the mud bubbles on the hole shape diagram.

[0016] In one implementation manner, the determining at least one real punching offset region of the hole shape diagram when the degree of influence is characterized as reasonable includes:

[0017] When the degree of influence is characterized as reasonable, respectively process the sub-hole shape diagrams in each different direction through an edge detection algorithm to determine the edge of the sub-hole shape diagram in each direction.

[0018] Based on the edges of the sub-hole shape diagrams in each direction, determine at least one punching offset region in different directions.

[0019] Determine the authenticity value of each punching offset region, and determine the punching offset region with the authenticity value greater than the real threshold as the real punching offset region to obtain at least one real punching offset region of the hole shape diagram.

[0020] Wherein, when the degree of influence is greater than the reasonable threshold, it is determined that the degree of influence is characterized as reasonable.

[0021] In one implementation manner, the determining the authenticity value of each punching offset region includes:

[0022] 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.

[0023] Determine the consistency value of the offset direction and the position authenticity of each punching offset area respectively according to the punching offset area and the corresponding reference punching offset area.

[0024] Determine the authenticity value of each punching offset area respectively according to the consistency value of the offset direction and the position authenticity.

[0025] In one implementation, determining the position authenticity of each punching offset area respectively according to the punching offset area and the corresponding reference punching offset area includes:

[0026] Determine the first starting position coordinate and the first ending position coordinate of each punching offset area in the vertical direction of the image, and determine the second starting position coordinate and the second ending position coordinate of each reference punching offset area corresponding to each punching offset area.

[0027] 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 punching offset area respectively.

[0028] Determine the target position coordinate combination with the largest length in the first position coordinate combination and the second position coordinate combination in each punching offset area respectively, and the target Euclidean distance corresponding to the target position coordinate combination and the union.

[0029] Determine the normalization value respectively according to the target Euclidean distance and the normalization function, and determine the position authenticity of each punching offset area according to the reciprocal of the sum value of the normalization value and the preset value.

[0030] In one implementation, determining the authenticity value of each punching offset area respectively according to the consistency value of the offset direction and the position authenticity includes:

[0031] Determine the authenticity value of each punching offset area respectively according to the second product of the consistency value of the offset direction and the position authenticity.

[0032] In one implementation, performing a false necking analysis on the true punching offset area to determine the target true punching offset area caused by the rotation of the ultrasonic detection probe includes:

[0033] Determine whether the offset directions of the edges on different sides in each of the true punching offset regions are the same; where the up-down direction is one side and the left-right direction is the other side;

[0034] Take the true punching offset regions where the offset directions of the edges on different sides are the same as the target true punching offset regions caused by the rotation of the ultrasonic detection probe;

[0035] Determine the candidate true punching offset regions where the offset directions of the edges on different sides are not the same, and determine the false necking degree value corresponding to each candidate true punching offset region;

[0036] Take the candidate true punching offset regions where the false necking degree value is less than or equal to the degree threshold as the target true punching offset regions caused by the rotation of the ultrasonic detection probe.

[0037] In one embodiment, the determining the false necking degree value corresponding to each candidate true punching offset region includes:

[0038] Respectively determine the outward expansion distance, the outward expansion distance change curve, the contraction distance on the other side, and the contraction distance change curve in each candidate true punching offset region;

[0039] 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;

[0040] 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;

[0041] Respectively determine the false necking degree value corresponding to each candidate true punching offset region according to the third product of the reciprocal of the first sum value and the reciprocal of the second sum value.

[0042] In one embodiment, the determining the punching quality according to the first quantity of the true punching offset regions and the second quantity of the target true punching offset regions includes:

[0043] Determine the effectiveness degree of the hole pattern according to the ratio of the second quantity to the first quantity;

[0044] Determine the punching quality according to the effectiveness degree and the degree threshold.

[0045] The present invention has the following beneficial effects:

[0046] Obtain the hole shape diagram of drilling during the construction of a traffic road through an ultrasonic detection probe, analyze the hole shape diagram, determine the degree of influence of the hole shape diagram by mud bubbles. When the degree of influence is reasonable, determine at least one true drilling offset area of the hole shape diagram. Based on the analysis of the degree of influence of the hole shape diagram by mud bubbles, ensure that the degree of influence is reasonable and then conduct subsequent analysis to improve the accuracy of drilling quality assessment; conduct false shrinkage analysis on the true drilling offset area, determine the target true drilling offset area caused by the rotation of the ultrasonic detection probe, and determine the drilling quality according to the first quantity of the true drilling offset area and the second quantity of the target true drilling offset area. Determining the drilling quality by analyzing the target true drilling offset area caused by the rotation of the ultrasonic detection probe is conducive to improving the accuracy of drilling quality assessment. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order 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 drawings required for the description of the embodiments or the prior art. Obviously, the 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 also be obtained based on these drawings.

[0048] Figure 1 It is a schematic flowchart of the steps of a method for evaluating the drilling quality of traffic road construction provided by an embodiment of the present invention;

[0049] Figure 2 It is a schematic diagram of each direction during the detection process of the ultrasonic detection probe provided by an embodiment of the present invention;

[0050] Figure 3 It is a schematic diagram of sub-hole shape diagrams in different directions provided by an embodiment of the present invention;

[0051] Figure 4 It is a schematic diagram of each segmented sub-hole shape diagram provided by an embodiment of the present invention;

[0052] Figure 5 It is a schematic diagram of the false shrinkage phenomenon provided by an embodiment of the present invention;

[0053] Figure 6 It is a schematic diagram of the drilling offset area provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manner, structure, features and effects of a method for evaluating the quality of drilling holes in traffic road construction proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0055] 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.

[0056] It should be noted that the "exemplary" in the embodiments of the present invention refers to examples listed for convenience of description, and other embodiments are not limited to the examples listed.

[0057] The following will specifically describe the specific solution of a method for evaluating the quality of drilling holes in traffic road construction provided by the present invention with reference to the accompanying drawings.

[0058] 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:

[0059] S100. Obtain a hole shape diagram of the drilling 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 mud bubbles on the hole shape diagram.

[0060] S200. When the degree of influence is characterized as reasonable, determine at least one actual drilling deviation area of the hole shape diagram.

[0061] S300. Conduct a false diameter reduction analysis on the actual drilling deviation area to determine the target actual drilling deviation area caused by the rotation of the ultrasonic detection probe.

[0062] S400. Determine the drilling quality based on the first quantity of the actual drilling deviation area and the second quantity of the target actual drilling deviation area.

[0063] In the technical solution of the embodiment of the present invention, a hole shape diagram of drilling during the construction of a traffic road is obtained through an ultrasonic detection probe, and the hole shape diagram is analyzed to determine 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 offset 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; false shrinkage analysis is carried out on the real drilling offset area, and the target real drilling offset area caused by the rotation of the ultrasonic detection probe is determined. According to the first quantity of the real drilling offset area and the second quantity of the target real drilling offset area, the drilling quality is determined. By analyzing the target real drilling offset 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.

[0064] In one embodiment, in step S100, after several drillings are performed during the construction of a traffic road, 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 electric pulse generated by the transmitting circuit of the hole quality ultrasonic detector is applied to its transmitting transducer, the transducer emits ultrasonic pulses perpendicular to the hole wall. The ultrasonic waves are partially reflected after propagating in the mud to the hole wall, and the reflected ultrasonic waves are received by the receiving transducer and, after signal processing such as amplification and filtering, the 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, as Figure 2 and Figure 3 shown, the hole shape diagram can include sub-hole shape diagrams in different directions, specifically including sub-hole shape diagrams in the upper direction (x1), lower direction (x2), left direction (y2), and right direction (y1). Among them, the upper direction (x1) and the lower direction (x2) are on the same side, that is, on one side (also called the first side), and the left direction (y2) and the right direction (y1) are on the same side, that is, on the other side (also called the second side). Among them, the ultrasonic detection probe is initially located at the center of the hole, and the movement trajectory during the detection is in the Z direction (not shown) perpendicular to the X axis and the Y axis. The Z direction can also be called vertically downward.

[0065] It should be noted that since the bubbles inside the mud are not easily distinguishable by the naked eye, when there are bubbles in the mud, the ultrasonic waves will be strongly reflected when encountering the bubbles, resulting in a significant increase in the amplitude of the reflected wave. In the hole diameter diagram, there are more scattered points. Therefore, first, according to the distribution of the scattered points, it is determined whether the obtained hole diameter diagram is severely affected by mud bubbles, and the degree of influence of the hole shape diagram by mud bubbles is analyzed.

[0066] In one embodiment, in step S100, analyzing the hole shape diagram to determine the degree of influence of the hole shape diagram by mud bubbles includes steps S101 - S103:

[0067] S101. Determine the aperture change characteristic regions in the sub-aperture shape diagrams in different directions respectively, perform grayscale processing and threshold segmentation processing on each sub-aperture shape diagram to obtain the segmented sub-aperture shape diagrams corresponding to different directions.

[0068] Optionally, Figure 3 A, B, C, and D in [[ ]] respectively represent the aperture change characteristic regions of the sub-aperture shape diagrams in different directions. Therefore, the regions will be marked respectively to determine the aperture change characteristic regions, then perform grayscale processing on each sub-aperture shape diagram, and then use the Otsu's method (OTSU) to perform threshold segmentation processing on the grayscale processed aperture shape diagram to obtain the segmented sub-aperture shape diagrams corresponding to different directions, as Figure 4 shown.

[0069] S102. Determine respectively 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 in the segmented sub-aperture shape diagram corresponding to each direction.

[0070] Optionally, determine respectively the third quantity of the highlighted pixel points in the aperture change characteristic region (the quantity of the highlighted pixel points in the aperture change characteristic region of the segmented sub-aperture shape diagram in the th direction), the fourth quantity of the highlighted pixel points outside the aperture change characteristic region (the quantity of the highlighted pixel points outside the aperture change characteristic region of the segmented sub-aperture shape diagram in the th direction) and the degree of dispersion of the highlighted pixel points outside the aperture change characteristic region (the degree of dispersion corresponding to the segmented sub-aperture shape diagram in the th direction). The degree of dispersion can be obtained by calculating the variance and will not be elaborated here.

[0071] S103. Determine the influence degree of the aperture shape diagram by mud bubbles according to the third quantity, the fourth quantity, and the degree of dispersion of the segmented sub-aperture shape diagram corresponding to each direction.

[0072] Specifically, determine respectively the difference between the third quantity and the fourth quantity of the segmented sub-aperture shape diagram corresponding to each direction, and the first product of the difference and the degree of dispersion . Determine the influence degree of the aperture 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:

[0073]

[0074] Among them, when is negative, it means that the number of pixel points distributed in the area outside the aperture change feature area in the th direction is greater than the aperture change feature area, and the degree of influence of mud bubbles in the corresponding th direction is relatively large. However, due to the situation where data points are concentrated in one or more areas, this situation may be caused by the quality problem of the punching itself. Therefore, through value, the value is corrected to obtain a more accurate degree of influence .

[0075] In one embodiment, step S200 includes steps S201 - S203:

[0076] S201. When the degree of influence is characterized as reasonable, the edge detection algorithm is used to process the sub - aperture diagrams in each different direction respectively to determine the edge of the sub - aperture diagram in each direction.

[0077] Optionally, when the degree of influence is greater than the reasonable threshold value of 0, it is determined that the degree of influence is characterized as reasonable. 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 the punching quality ultrasonic detector to re - measure after a period of time, that is, return to step S100.

[0078] It should be noted that on the premise that the aperture diagram is not seriously affected by mud bubbles, the judgment of the validity of the aperture diagram is continued. Since the ultrasonic detection probe cannot rotate during the working process, if it rotates, it will cause the change of the ultrasonic emission and reception directions, thereby affecting the accuracy of the collected data. Therefore, it is necessary to analyze the aperture 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 punching quality, a false necking phenomenon usually occurs, which is manifested as when the punching on one side is offset, the aperture on the other side will shrink. This situation is caused by the offset of the punching, resulting in the ultrasonic detection probe not being at the center of the punching, which is a factor that needs to be considered in subsequent analysis.

[0079] S202. According to the edge of the sub - aperture diagram in each direction, determine at least one punching offset area in different directions.

[0080] Optionally, the Canny edge detection algorithm is used to detect the edges of the sub-hole patterns in each direction (4 directions) respectively, and then at least one punching offset area is determined according to the change of the edges of the sub-hole patterns in two directions on the same side (for example, x1 and x2, or y1 and y2). That is, there may be one or more punching offset areas. For example, taking the vertical direction starting from the upper edge of the sub-hole pattern 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 punching edge deviating from the reference direction is the punching edge with offset. And when the punching is offset, the offset directions of the edges of the sub-hole patterns in two directions on the same side are also the same. For example, a left offset is an inward offset, and a right offset is an outward offset. As Figure 6 shown, the enclosed areas E1 and E2 in the two examples are the punching offset areas where punching occurs with offset.

[0081] S203. Determine the authenticity value of each punching offset area, and determine the punching offset area with the authenticity value greater than the true threshold as the true punching offset area, so as to obtain at least one true punching offset area of the hole pattern.

[0082] Optionally, determining the authenticity value of each punching offset area includes:

[0083] First, determine the Euclidean distance between each punching offset area and the remaining punching offset areas in another direction (that is, the other direction on the same side) respectively, and determine the reference punching offset area corresponding to the smallest Euclidean distance from the remaining punching offset areas in another direction respectively, so as to obtain the reference punching offset area corresponding to each punching offset area.

[0084] Secondly, determine the consistency value of the offset direction and the position authenticity of each punching offset area according to the punching offset area and the corresponding reference punching offset area respectively.

[0085] Among them, when the offset direction of the punching offset area is the same as that of its corresponding reference punching offset area, the consistency value of the offset direction is the first numerical value, for example 1. When they are different, the consistency value of the offset direction is the second numerical value, for example 0.

[0086] In addition, the steps of determining the position authenticity of each punching offset area specifically include:

[0087] 1. First, determine the first starting position coordinate and the first ending position coordinate of each punching offset area in the vertical direction of the image, and determine the first position coordinate combination according to the first starting position coordinate and the first ending position coordinate (that is, the first The position coordinate combinations of the regions where punching occurs with offsets), and determine the second starting position coordinates and the second ending position coordinates of each reference punching offset region corresponding to each punching offset region, and determine the second position coordinate combinations according to the second starting position coordinates and the second ending position coordinates (i.e., the position coordinate combinations of the reference punching offset regions corresponding to the th punching offset regions). In addition, determine the first position coordinate combinations corresponding to each punching offset region respectively and the second position coordinate combinations of the union .

[0088] 2. Secondly, respectively determine, in each punching offset region, the target position coordinate combinations with the largest lengths in the first position coordinate combinations and the second position coordinate combinations , for example, the combinations 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 corresponding to the target position coordinate combinations 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 punching offset region corresponding to the smallest Euclidean distance, that is, the determination of and the reference punching offset region corresponding to the smallest Euclidean distance between them.

[0089] 3. Respectively determine the normalization values according to the target Euclidean distance and the normalization function , and determine the position authenticity of each punching offset region according to the reciprocal of the sum value of the normalization value and a preset value (such as 1). The formula is:

[0090]

[0091] In the formula, represents the position authenticity of the th punching offset region; The larger the value of , the higher the position authenticity of the

[0092] Then, respectively determine the authenticity values of each punching offset region according to the consistency value of the offset direction (i.e., the consistency value of the offset direction between the th punching offset region and its corresponding reference punching offset region) and the position authenticity . Specifically, respectively determine according to the consistency value of the offset direction and the position authenticity The second product, determine the authenticity value of each punching offset area , the formula is:

[0093]

[0094] In the formula, represents the authenticity value of the th punching offset area.

[0095] Among them, in S203, after determining the authenticity value of each punching offset area , the punching offset areas with authenticity values greater than the true threshold (for example, 0.7) are determined as true punching offset areas, obtaining at least one true punching offset area of the hole shape diagram, denoted as the th true punching offset area, and there are a total of M true punching offset areas. As Figure 6 shown, the true punching offset area is the area between the horizontal lines F1 and F2.

[0096] It should be noted that for the th true punching offset area, the aperture of the punching on the other side should be in a contracted state. Therefore, the distance between the two edge lines should change with the degree of outward expansion of the edge lines in the th true punching offset area. The greater the degree of outward expansion (i.e., the offset distance), the greater the degree of contraction (i.e., the change degree of the interval between the two edge lines) between the two edge lines on the corresponding other side.

[0097] In one implementation, step S300 includes steps S301 - S304:

[0098] S301. Determine whether the offset directions of the edges on different sides in each true punching offset area are the same.

[0099] Optionally, to determine 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 edge lines) are the same. If they all offset to the left (inward offset) or all offset to the right (outward offset), then the offset directions of the edges are the same, otherwise they are different. The judgment is similar to that in .

[0100] S302. Use the true punching offset areas with the same offset directions of the edges on different sides as the target true punching offset areas caused by the rotation of the ultrasonic detection probe.

[0101] 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 The area where the real punching is offset may be caused by the rotation of the ultrasonic detection probe. Therefore, the area where the real punching is offset is used as the target area where the real punching is offset caused by the rotation of the ultrasonic detection probe, and the quantity is recorded as 1.

[0102] S303. Determine the candidate areas where the real punching is offset with different offset directions on different side edges, and determine the degree value of false necking corresponding to each candidate area where the real punching is offset.

[0103] Optionally, the offset directions of the edges on different sides are different, that is, in opposite directions, indicating that the condition of false necking is met, and subsequent further analysis and calculation of the degree value of false necking are required. Therefore, the area where the real punching is offset with different offset directions on different side edges is used as the candidate area where the real punching is offset, and is recorded as the th candidate area where the real punching is offset. Then, determine the degree value of false necking corresponding to each candidate area where the real punching is offset, specifically including:

[0104] First, respectively determine the outward expansion distance (that is, the outward expansion distance on one side of the th candidate area where the real punching is offset), the outward expansion distance change curve (that is, the outward expansion distance change curve on one side of the th candidate area where the real punching is offset), the contraction distance (that is, the contraction distance on the other side of the th candidate area where the real punching is offset) and the contraction distance change curve (that is, the contraction distance change curve on the other side of the th candidate area where the real punching is offset) in each candidate area where the real punching is offset.

[0105] 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 outward expansion distance change curve is composed of the distances between the lines in one side of the candidate area where the real punching is offset and the reference direction line, and the outward expansion distance is the longest distance between the line in one side of the candidate area where the real punching is offset and the reference direction line; the contraction distance change curve is composed of the distances between the lines in the other side of the candidate area where the real punching is offset and the reference direction line, and the contraction distance is the shortest distance between the line in the other side of the candidate area where the real punching is offset and the reference direction line.

[0106] Secondly, respectively determine the outward expansion distance Degree of similarity with the shrinkage distance and respectively determine the outer expansion distance change curve and the DTW distance between the shrinkage distance change curve and .

[0107] Furthermore, determine the first sum value of the degree of similarity and a preset value (such as 1) and the second sum value of the DTW distance and the preset value .

[0108] Finally, 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. The formula is:

[0109]

[0110] In the formula, represents the false necking degree value corresponding to the th candidate true punching offset area; A smaller value indicates that the overall outer expansion degree on one side and the overall shrinkage 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 shrinkage distance change trend on the other side of the th candidate true punching offset area are more similar. The corresponding th candidate true punching offset area more conforms to the performance of false necking, and the corresponding false necking degree value is larger.

[0111] 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.

[0112] Optionally, if the false necking degree value is greater than the degree threshold (such as 0.5), then the corresponding th candidate true punching offset area shows normal performance. On the contrary, if the false necking degree value is less than or equal to the degree threshold (such as 0.5), then the corresponding th candidate true punching offset area shows abnormal performance. The ​A candidate true punching offset area is determined as 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 the second quantity of the target true punching offset area can be determined according to the sum of L1 and L2. 。

[0113] In one implementation, step S400 includes steps S401 - S402:

[0114] S401. Determine the effectiveness of the hole pattern according to the ratio of the second quantity and the first quantity .

[0115] Specifically, the effectiveness of the hole pattern is calculated by the formula:

[0116]

[0117] S402. Determine the punching quality according to the effectiveness and the degree threshold.

[0118] Optionally, the degree threshold is assumed to be 0.3. When the effectiveness value of the hole pattern is greater than 0.3, it indicates that the effectiveness of the obtained hole pattern 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 with the ultrasonic detection probe; if the effectiveness value of the hole pattern 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 pattern and combining industry standards.

[0119] The method of the embodiment of the present invention introduces the influence degree of the hole pattern 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 pattern, and avoid obtaining inaccurate punching quality evaluation results due to inaccurate analysis of the hole pattern.

[0120] It should be noted that the above - mentioned sequence of the embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired result. In some implementations, multitasking and parallel processing are also possible or may be advantageous.

[0121] 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, and the key point of each embodiment is to illustrate the differences from other embodiments.

Claims

1. A method for evaluating the quality of drilling in traffic road construction, characterized in that, The method includes: Obtaining a hole shape diagram of drilling during the construction of a traffic road through an ultrasonic detection probe, and analyzing the hole shape diagram to determine the degree of influence of mud bubbles on the hole shape diagram; When the degree of influence is characterized as reasonable, determining at least one true drilling offset area of the hole shape diagram; Performing a false necking analysis on the true drilling offset area to determine the target true drilling offset area caused by the rotation of the ultrasonic detection probe; Determining the drilling quality according to the first quantity of the true drilling offset area and the second quantity of the target true drilling offset area; 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 mud bubbles on the hole shape diagram includes: Determining an 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 a segmented sub-hole shape diagram corresponding to each different direction; Respectively determining, in the segmented sub-hole shape diagram corresponding to each direction, the third quantity of highlighted pixel points in the aperture change characteristic area, the fourth quantity of highlighted pixel points outside the aperture change characteristic area, and the degree of dispersion; Determining the degree of influence of the mud bubbles on the hole shape diagram according to the third quantity, the fourth quantity, and the degree of dispersion of the segmented sub-hole shape diagram corresponding to each direction; The determining the degree of influence of the mud bubbles on the hole shape diagram according to the third quantity, the fourth quantity, and the degree of dispersion of the segmented sub-hole shape diagram corresponding to each direction includes: Respectively determining the difference between the third quantity and the fourth quantity of the segmented sub-hole shape diagram corresponding to each direction, and the first product of the difference and the degree of dispersion; Determining the degree of influence of the mud bubbles on the hole shape diagram according to the ratio of the sum of the first products to the number of directions; Setting a reasonable threshold to 0, and when the degree of influence is greater than the reasonable threshold, determining that the degree of influence is characterized as reasonable; The when the degree of influence is characterized as reasonable, determining at least one true drilling offset area of the hole shape diagram includes: When the degree of influence is characterized as reasonable, respectively processing each sub-hole shape diagram in different directions through an edge detection algorithm to determine the edge of each sub-hole shape diagram; Determining at least one drilling offset area in different directions according to the edge of each sub-hole shape diagram; Determining the authenticity value of each drilling offset area, and determining the drilling offset area with the authenticity value greater than the true threshold as the true drilling offset area to obtain at least one true drilling offset area of the hole shape diagram; The performing a false necking analysis on the true drilling offset area to determine the target true drilling offset area caused by the rotation of the ultrasonic detection probe includes: Determining whether the offset directions of the edges on different sides in each true drilling offset area are the same; wherein, the up and down directions are one side, and the left and right directions are the other side; Take the region where the real punching offset occurs with the same offset direction on different sides of the edge as the target real punching offset region caused by the rotation of the ultrasonic detection probe; Determine the candidate real punching offset regions where the offset directions of different side edges are different, and determine the corresponding false necking degree value for each candidate real punching offset region; Determine the candidate real punching offset regions where the false necking degree value is less than or equal to the degree threshold as the target real punching offset region caused by the rotation of the ultrasonic detection probe; The determining the punching quality according to the first quantity of the real punching offset regions and the second quantity of the target real punching offset regions includes: Determine the effectiveness degree of the hole pattern 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; Validity of the hole pattern The calculation formula is as follows: ; wherein, F represents the second quantity, and M represents the first quantity; When the effectiveness degree is greater than the degree threshold, it indicates poor punching quality; when the effectiveness degree is less than or equal to the degree threshold, it indicates good punching quality.

2. The traffic road construction hole punching quality assessment method according to claim 1, wherein: 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 the other direction, and respectively determine the reference punching offset region corresponding to the minimum Euclidean distance from the remaining punching offset regions in the other direction, so as to obtain the reference punching offset region corresponding to each punching offset region; Respectively determine the consistency value of the offset direction and the position authenticity of each punching offset region according to the punching offset region and the corresponding reference punching offset region; Respectively determine the authenticity value of each punching offset region according to the consistency value of the offset direction and the position authenticity; 3. The traffic road construction hole punching quality evaluation method according to claim 2, characterized in that: Respectively determining the position authenticity of each punching offset region according to the punching offset region and the corresponding reference punching offset region includes: Determine the first starting position coordinate and the first ending position coordinate of each punching offset region in the vertical direction of the image, and determine the second starting position coordinate and the second ending position coordinate of each reference punching offset region corresponding to each punching offset region; 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 respectively determine the union of the first position coordinate combination and the second position coordinate combination corresponding to each punching offset region; 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 punching offset region, and the target Euclidean distance corresponding to the union of the target position coordinate combination; Respectively determine the normalization value according to the target Euclidean distance and the normalization function, and determine the position authenticity of each punching offset region according to the reciprocal of the sum value of the normalization value and the preset value.

4. The traffic road construction hole-drilling quality evaluation method according to claim 2, characterized in that: Determining the authenticity value of each offset area where the punching occurs respectively according to the consistency value of the offset direction and the position authenticity includes: Determining the authenticity value of each offset area where the punching occurs respectively according to the second product of the consistency value of the offset direction and the position authenticity.

5. The method for evaluating the quality of drilling holes in traffic road construction according to claim 1, characterized in that: The determining the false necking degree value corresponding to each candidate true punching offset area includes: Respectively determining, 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 determining the similarity degree between the outward expansion distance and the contraction distance, and respectively determining the DTW distance between the outward expansion distance change curve and the contraction distance change curve; Determining 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 determining 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.

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