A pipeline strength detection method, system, storage medium and intelligent terminal

Abstract

The application relates to a pipeline strength detection method and system, a storage medium and an intelligent terminal, relates to the field of pipeline detection technology, and comprises the following steps: when a pipeline is placed on a detection platform, rotating the detection platform and acquiring external image information of the pipeline; judging external defect features in the image; if the external defect features exist, outputting a strength deficiency signal; if the external defect features do not exist, controlling a detection device to detect an inner side wall of the pipeline and acquiring rotation angle information and vibration value information; judging whether the vibration value information corresponds to a value in a reasonable range; if not, outputting the strength deficiency signal; if yes, continuing to rotate and detect and acquiring forward length information until the forward length information corresponds to a length value identical to a pipeline length value, and the detection device is controlled to stop working. The application has the effect of reducing the occurrence of the condition that a worker installs a pipeline with insufficient strength.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipeline detection technology, in particular to a pipeline strength detection method, system, storage medium and intelligent terminal. BACKGROUND

[0002] The basement pipeline includes fire pipeline, sewage pipeline, ventilation pipeline and water supply and gas light belt respectively, and various pipelines can realize the transportation of objects. After the pipeline is produced, the strength of the pipeline is detected, and the pipeline with qualified strength is transported to the basement where it needs to be installed. At this time, the staff can hoist the pipeline to install it above the basement to realize the normal use of the pipeline.

[0003] For the related technology in the above, the inventor believes that after the pipeline is produced, the pipeline may collide with each other or other objects during transportation or handling, at which time the strength of the pipeline will change due to the collision, so that the pipeline may be insufficient in strength, and the personnel installing the pipeline cannot know the situation, which may result in installing the pipeline with insufficient strength. SUMMARY

[0004] In order to reduce the situation that the staff installs the pipeline with insufficient strength, the present application provides a pipeline strength detection method, system, storage medium and intelligent terminal.

[0005] In the first aspect, the present application provides a pipeline strength detection method, which adopts the following technical scheme:

[0006] A pipeline strength detection method comprises:

[0007] Obtaining platform state information of a preset detection platform;

[0008] When the state corresponding to the platform state information is consistent with the preset in-place state, rotating the pipeline on the detection platform by a preset number of fixed turns, and obtaining external image information of the pipeline;

[0009] Performing feature recognition on the image corresponding to the external image information to determine whether there is a preset external defect feature;

[0010] If there is an external defect feature, output an insufficient strength signal;

[0011] If there is no external defect feature, control the preset detection device to move to the inside of the pipeline and make the detection wheel abut against the inner side wall of the pipeline to make the detection device rotate circumferentially in the pipeline, and obtain rotation angle information and vibration value information during the rotation;

[0012] Determine whether the value corresponding to the vibration value information is within a preset reasonable range;

[0013] if the value corresponding to the vibration value information is not in the reasonable range, outputting an insufficient strength signal;

[0014] if the value corresponding to the vibration value information is in the reasonable range, continuing the rotation detection until the angle value corresponding to the rotation angle information is consistent with the preset detection angle, and after the consistency, controlling the detection device to move a preset fixed length along the preset detection direction and obtaining the forward length information;

[0015] judging whether the length value corresponding to the forward length information is consistent with the preset pipeline length value;

[0016] if the length value corresponding to the forward length information is consistent with the pipeline length value, outputting an operation end signal and controlling the detection device to stop operation;

[0017] if the length value corresponding to the forward length information is not consistent with the pipeline length value, making the value corresponding to the rotation angle information zero and performing rotation detection again.

[0018] By adopting the above technical scheme, the state of the detection platform is obtained to determine whether the pipeline is placed for detection. When the pipeline is placed on the detection platform for detection, whether there is a defect outside the pipeline is determined through an image. When there is no defect, whether there is a defect inside the pipeline is checked by using the detection device. Therefore, whether the pipeline is collided can be detected, so that the pipeline with insufficient strength after being collided can be detected, thereby preventing the staff from installing the pipeline with insufficient strength.

[0019] Optionally, when the external defect feature exists, the pipeline strength detection method further includes:

[0020] determining external defect position information according to the external defect feature;

[0021] numbering the external defect feature in the detection direction according to the external defect position information to determine external defect number information;

[0022] detecting the external defect feature in sequence according to the external defect number information, and controlling the pipeline to rotate and the preset ranging device to move in the detection direction according to the external defect position information, so that the ranging device is opposite to the external defect feature and obtains obstacle distance information;

[0023] performing difference calculation on the obstacle distance information and a preset fixed distance value to determine deviation distance information;

[0024] judging whether the distance value corresponding to the deviation distance information is greater than a preset upper deviation limit value;

[0025] if the distance value corresponding to the deviation distance information is greater than the upper deviation limit value, outputting an insufficient strength signal;

[0026] If the distance value corresponding to the deviation distance information is not greater than the upper deviation value, the external defect feature is defined as an external pending defect feature, and the remaining external defect features are continuously detected until the detection of all external defect features is completed, and after the detection is completed, the detection device is controlled to move to the internal detection of the pipeline.

[0027] By using the above technical scheme, each external defect feature is detected in turn, so that the defect condition of each external defect feature can be known, and the features with smaller defect degree can be defined, so that subsequent further analysis can be performed, and the accuracy of the strength detection is improved.

[0028] Optionally, the method for determining the external defect position information according to the external defect feature comprises:

[0029] determining the external contour information according to the external defect feature;

[0030] connecting each point on the external contour information to determine a contour connection line segment, and determining connection distance information according to the contour connection line segment;

[0031] determining the connection distance information with the largest corresponding distance value in all connection distance information according to a preset sorting rule, and defining the contour connection line segment corresponding to the connection distance information as a longest connection line segment;

[0032] defining a line segment perpendicular to the longest connection line segment in the contour connection line segment as a perpendicular connection line segment, and determining the perpendicular connection line segment with the largest corresponding distance value in all perpendicular connection line segments according to the sorting rule, and defining the perpendicular connection line segment as an intersecting connection line segment;

[0033] determining the external defect position information according to the intersection point of the intersecting connection line segment and the longest connection line segment.

[0034] By using the above technical scheme, the point closer to the center in the defect can be determined according to the actual contour condition of the defect, so as to detect the condition of the defect.

[0035] Optionally, the method for determining the fixed distance value further comprises:

[0036] obtaining extrusion position information on the detection platform;

[0037] determining plate length information according to the extrusion position information and a preset acute angle point;

[0038] calculating according to the plate length information and a preset half-angle angle to determine pipeline outer diameter information and center height information;

[0039] summing and calculating according to the pipeline outer diameter information and the center height information to determine vertex height information;

[0040] According to the preset detection height value and the vertex height information, a difference value is calculated to determine a fixed distance value.

[0041] By adopting the technical scheme, a reasonable fixed distance value is determined according to the pipe specification, so that the detection result is more accurate.

[0042] Optionally, the method further comprises a method for determining the upper limit value of the deviation, which comprises:

[0043] The detection equipment is controlled to move to the height value corresponding to the center height information and enter the pipe, and the detection equipment is controlled to extend the detection wheel in the pipe and acquire the detection pressure information in real time;

[0044] When the pressure value corresponding to the detection pressure information is equal to the preset fixed pressure value, the extension of the detection wheel is stopped, and the pipe inner diameter information is acquired according to the extension condition of the detection wheel;

[0045] According to the pipe outer diameter information and the pipe inner diameter information, a difference value is calculated to determine the pipe wall thickness information;

[0046] According to the pipe wall thickness information and a preset influence coefficient value, a calculation is performed to determine the upper limit value of the deviation.

[0047] By adopting the technical scheme, a reasonable upper limit value of the deviation is determined according to the pipe wall thickness, so that the pipe strength detection result is more accurate.

[0048] Optionally, if the value corresponding to the vibration value information is not in a reasonable range, the pipe strength detection method further comprises:

[0049] A judgment interval with a preset fixed time length is established in a forward direction on a preset time axis, and the vibration value information with the largest corresponding value and the vibration value information with the smallest corresponding value are determined in the judgment interval according to a sorting rule, and the vibration value information with the largest corresponding value is defined as maximum vibration value information, and the vibration value information with the smallest corresponding value is defined as minimum vibration value information;

[0050] According to the maximum vibration value information and the minimum vibration value information, a difference value is calculated to determine a vibration difference value information;

[0051] It is judged whether the vibration value corresponding to the vibration difference value information is less than a preset upper limit value of vibration;

[0052] If the vibration value corresponding to the vibration difference value information is not less than the upper limit value of vibration, a strength deficiency signal is outputted;

[0053] If the vibration value corresponding to the vibration difference information is less than the vibration upper limit value, the internal defect position information is determined according to the rotation angle information and the forward length information, and the internal defect feature is defined as an internal pending defect feature.

[0054] By adopting the above technical solution, the defect recess condition is determined according to the vibration value, and when the recess is small, the defect can be marked for subsequent further analysis, so that the pipeline strength detection result is more accurate.

[0055] Optionally, after the internal pending defect feature is determined, the pipeline strength detection method further comprises:

[0056] A detection interval with a radian value of a preset detection radian and a width value of a preset detection width is established on the pipeline centering on the internal pending defect feature;

[0057] It is judged whether there is an external pending defect feature in the detection interval;

[0058] If there is no external pending defect feature in the detection interval, the internal pending defect feature is cancelled and the detection equipment is continued to be controlled to detect;

[0059] If there is an external pending defect feature in the detection interval, a strength deficiency signal is output.

[0060] By adopting the above technical solution, when the internal defect is close to the external defect, it indicates that the strength of the pipeline will be affected, and at this time, the strength deficiency signal is output to mark the pipeline, thereby reducing the occurrence of the situation that the staff installs such a pipeline.

[0061] In a second aspect, the present application provides a pipeline strength detection system, which adopts the following technical solution:

[0062] A pipeline strength detection system comprises:

[0063] An acquisition module is configured to acquire platform state information of a preset detection platform;

[0064] A processing module is connected with the acquisition module and the judgment module, and is configured to store and process information;

[0065] A judgment module is connected with the acquisition module and the processing module, and is configured to judge information;

[0066] When the state corresponding to the platform state information is consistent with a preset in-place state, the processing module controls the pipeline on the detection platform to rotate a preset fixed number of turns, and the acquisition module acquires external image information of the pipeline;

[0067] The processing module performs feature recognition in the image corresponding to the external image information, so that the judgment module judges whether there is a preset external defect feature;

[0068] If the judgment module judges that there is an external defect feature, the processing module outputs an insufficient strength signal;

[0069] If the judgment module judges that there is no external defect feature, the processing module controls the preset detection device to move to the inside of the pipeline and make the detection wheel abut against the inner side wall of the pipeline to make the detection device rotate circumferentially in the inside of the pipeline, and the acquisition module acquires rotation angle information and vibration value information during the rotation;

[0070] The judgment module judges whether the value corresponding to the vibration value information is in a preset reasonable range;

[0071] If the judgment module judges that the value corresponding to the vibration value information is not in the reasonable range, the processing module outputs an insufficient strength signal;

[0072] If the judgment module judges that the value corresponding to the vibration value information is in the reasonable range, the processing module continues to rotate the detection, until the angle value corresponding to the rotation angle information is consistent with a preset detection angle, and after the consistency, controls the detection device to move by a preset fixed length along a preset detection direction and makes the acquisition module acquire forward length information;

[0073] The judgment module judges whether the length value corresponding to the forward length information is consistent with a preset pipeline length value;

[0074] If the judgment module judges that the length value corresponding to the forward length information is consistent with the pipeline length value, the processing module outputs a work end signal and controls the detection device to stop working;

[0075] If the judgment module judges that the length value corresponding to the forward length information is not consistent with the pipeline length value, the processing module makes the value corresponding to the rotation angle information zero and performs rotation detection again.

[0076] By adopting the above technical solutions, the acquisition module acquires the state of the detection platform to make the judgment module determine whether the pipeline is placed for detection, when the judgment module judges that the pipeline is placed on the detection platform for detection, the image is used to make the judgment module determine whether there is a defect outside the pipeline, when there is no defect, the detection device is used to check whether there is a defect inside the pipeline, so that whether the pipeline is collided can be detected, so that the pipeline with insufficient strength after being collided can be detected, so that the staff is not easy to install the pipeline with insufficient strength.

[0077] In a third aspect, the application provides an intelligent terminal, which adopts the following technical solutions:

[0078] An intelligent terminal, comprising a memory and a processor, the memory stores a computer program capable of being loaded and executed by the processor to execute any one of the above pipeline strength detection methods.

[0079] By using the above technical solutions, through the use of the intelligent terminal, the state of the detection platform is acquired to determine whether the pipeline is placed for detection, when the pipeline is placed on the detection platform for detection, whether there is a defect outside the pipeline is determined through the image, and when there is no defect, whether there is a defect inside the pipeline is checked by using the detection equipment, so that whether the pipeline is collided can be detected, so that the pipeline with insufficient strength after being collided can be detected, and thus the staff is less likely to install the pipeline with insufficient strength.

[0080] In a fourth aspect, the application provides a computer storage medium capable of storing a corresponding program, having the characteristics of reducing the occurrence of the staff installing the pipeline with insufficient strength, and adopting the following technical solutions:

[0081] A computer readable storage medium stores a computer program capable of being loaded by a processor and executing any of the above pipeline strength detection methods.

[0082] By using the above technical solutions, the computer program of the pipeline strength detection method is stored in the storage medium, the state of the detection platform is acquired to determine whether the pipeline is placed for detection, when the pipeline is placed on the detection platform for detection, whether there is a defect outside the pipeline is determined through the image, and when there is no defect, whether there is a defect inside the pipeline is checked by using the detection equipment, so that whether the pipeline is collided can be detected, so that the pipeline with insufficient strength after being collided can be detected, and thus the staff is less likely to install the pipeline with insufficient strength.

[0083] In summary, the application includes at least one of the following beneficial technical effects:

[0084] 1. The defects of the outer surface and the inner surface of the pipeline to be installed can be detected, so that the pipeline with defects and insufficient strength can be distinguished, and the occurrence of the staff installing the pipeline with insufficient strength can be reduced;

[0085] 2. The reasonable parameter value can be set according to the specification of the pipeline, so that the pipeline strength detection is more accurate;

[0086] 3. Whether the defect with smaller concave degree will affect the strength of the pipeline can be determined according to the defect inside and outside the pipeline, so that the accuracy of the pipeline strength detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0087] Figure 1 is a flowchart of the pipeline strength detection method.

[0088] Figure 2 is a schematic diagram of the pipeline strength detection placement.

[0089] Figure 3 is a flowchart of the external defect feature review method.

[0090] Figure 4 is a flow chart of an external defect feature position determination method.

[0091] Figure 5 is a flow chart of a fixed distance value determination method.

[0092] Figure 6 is a flow chart of a deviation upper limit value determination method.

[0093] Figure 7 is a flow chart of an internal defect feature review method.

[0094] Figure 8 is a flow chart of an internal and external pending defect feature influence situation determination method.

[0095] Figure 9 is a module flow chart of a pipeline strength detection method. DETAILED DESCRIPTION

[0096] In order to make the purpose, technical scheme and advantages of the present application clearer, the following will combine the drawings of the specification and the examples to further describe the present application in detail. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application. Figures 1-9 The present application will be further described in detail below with reference to the drawings of the specification.

[0097] The present application discloses a pipeline strength detection method, which detects defects on the outer surface and the inner surface of the pipeline by image detection and detection equipment to determine whether the pipeline has defects that cause insufficient pipeline strength, thereby reducing the situation where the staff installs the pipeline with insufficient strength.

[0098] Referring to

[0099] , the method flow of the pipeline strength detection method includes the following steps: Figure 1 Step S100: Obtain platform state information of a preset detection platform.

[0100] The detection platform is a platform for placing the pipeline to be detected, and the state corresponding to the platform state information is the placement state of the object on the detection platform. The platform state information can be obtained by installing a pressure sensor on the detection platform. Referring to

[0101] , the detection platform can be formed by splicing two plates to form a whole shape of "V", and the pressure sensor can be arranged on the upper surface of the detection platform at intervals, which are arranged along the width direction of the detection platform. Figure 2

[0102] ​Step S101: when the state corresponding to the platform state information is consistent with the preset in-place state, control the pipeline on the detection platform to rotate a preset fixed number of turns, and acquire external image information of the pipeline.

[0103] The in-place state is a state set by the worker when the object is placed on the detection platform. When the state corresponding to the platform state information is consistent with the in-place state, it means that the pipeline is placed on the detection platform and needs to be detected. The fixed number of turns is a fixed number of turns set by the worker. The rotation axis of the pipeline during control is the center axis of the pipeline itself. The control of the pipeline rotation can be achieved by driving the external mechanical hand. The image corresponding to the external image information is the image of the outer surface of the pipeline, which can be acquired by the instrument fixed outside and having the shooting function.

[0104] Step S102: perform feature recognition in the image corresponding to the external image information to determine whether there is a preset external defect feature.

[0105] The external defect feature is a feature that may appear on the pipeline after being collided, which can be determined by deep learning. The purpose of determination is to know whether the pipeline outer surface is collided to determine whether the pipeline will have insufficient strength.

[0106] Step S1021: if there is an external defect feature, output an insufficient strength signal.

[0107] When there is an external defect feature, it means that the outer surface of the pipeline is impacted and leaves a dent. At this time, the strength of the pipeline may be insufficient, so an insufficient strength signal is output to mark this situation, so that the worker can know this situation in time to reduce the situation that the worker installs the pipeline with insufficient strength. The insufficient strength signal can be output by turning on the indicator light or by sounding the horn. The specific output method is set by the worker according to the actual situation, which is not described here.

[0108] Step S1022: if there is no external defect feature, control the preset detection device to move to the inside of the pipeline and make the detection wheel abut against the inner side wall of the pipeline to make the detection device rotate circumferentially in the pipeline, and acquire rotation angle information and vibration value information during rotation.

[0109] When there is no external defect feature, it indicates that the outer surface has not been hit by a large impact, and the inner side wall of the pipeline needs to be detected; the detection device is a device for detecting the inner side wall of the pipeline, the body of the detection device moves on the pipeline axis, and the pipeline is provided with a plurality of telescopic connecting rods in the circumferential direction, three of which are described in the application, a detection wheel is connected to the end of the connecting rod for abutting the inner side wall of the pipeline, wherein a vibration sensor is installed on the connecting rod for detecting the jolt of the detection wheel; the angle value corresponding to the rotation angle information is the angle value of the detection device rotating to drive the rotating wheel to move circumferentially in the pipeline, which can be obtained by monitoring the instrument driving the detection device to rotate, and the value corresponding to the vibration value information is the value detected by the vibration sensor, when the inner wall of the pipeline is flat, the detected value should be 0.

[0110] Step S103: Determine whether the value corresponding to the vibration value information is within a predetermined reasonable range.

[0111] The reasonable range is the vibration value range that the staff can detect when there is no obvious depression on the inner side wall of the pipeline, and the purpose of the determination is to know whether the depression is detected during the detection process of the detection device.

[0112] Step S1031: If the value corresponding to the vibration value information is not within the reasonable range, output an insufficient strength signal.

[0113] When the value corresponding to the vibration value information is not within the reasonable range, it indicates that the depression of the inner side wall of the pipeline is detected, and at this time the insufficient strength signal is output to identify the situation, so that the staff can know the situation.

[0114] Step S1032: If the value corresponding to the vibration value information is within the reasonable range, continue to rotate and detect until the angle value corresponding to the rotation angle information is consistent with the preset detection angle, and after consistency, control the detection device to move a preset fixed length along the preset detection direction and obtain the forward length information.

[0115] When the value corresponding to the vibration value information is within the reasonable range, it indicates that the inner side wall of the pipeline has no defects, and at this time the remaining positions are continuously detected, the detection angle is set by the staff to detect one full circle of the inner side wall of the pipeline, and the minimum value of the detection angle is 360°, when the angle value corresponding to the rotation angle information is consistent with the detection angle, it indicates that the circumferential detection of the pipeline at this position is completed, and at this time the detection device is controlled to move a fixed length along the detection direction to continue to detect the axial direction of the remaining positions, wherein the detection direction is the direction in which the end of the detection device starts to detect moves to the other end of the pipeline, the fixed length is a fixed value set by the staff, and the length value corresponding to the forward length information is the distance length value of the detection device moving forward along the detection direction when starting to detect, which can be obtained by a displacement sensor.

[0116] Step S104: judging whether the length value corresponding to the advancing length information is consistent with the preset pipe length value.

[0117] The pipe length value is the overall length of the pipe to be detected, and the purpose of the judgment is to know whether the detection device has completed the detection of all the inner side walls of the pipe.

[0118] Step S1041: if the length value corresponding to the advancing length information is consistent with the pipe length value, outputting a job end signal and controlling the detection device to stop working.

[0119] When the length value corresponding to the advancing length information is consistent with the pipe length value, it means that the detection of all positions of the inner side wall of the pipe has been completed, at this time, the detection device stops working, and an end signal is outputted to inform the worker of the situation, so that the worker can timely remove the pipe, wherein the detection device is reset after stopping working.

[0120] Step S1042: if the length value corresponding to the advancing length information is inconsistent with the pipe length value, the value corresponding to the rotation angle information is reset to zero and the rotation detection is performed again.

[0121] When the length value corresponding to the advancing length information is inconsistent with the pipe length value, it means that the detection of the pipe has not been completed, at this time, the rotation angle is reset to zero for detection again.

[0122] Reference Figure 3 When there is an external defect feature, the pipe strength detection method further comprises:

[0123] Step S200: determining external defect position information according to the external defect feature.

[0124] The position corresponding to the external defect position information is the position of the detected external defect feature, which is determined by positioning the position of the feature on the image.

[0125] Step S201: numbering the external defect feature in the detection direction according to the external defect position information to determine external defect number information.

[0126] The number value corresponding to the external defect number information is the number value of the external defect feature, which is numbered in sequence according to the position of the external defect feature in the detection direction, the closer to the initial detection position of the detection device, the earlier the defect number, and when the distance of two defects in the detection direction is consistent, the external defect number detected first is earlier.

[0127] Step S202: detecting the external defect features according to the external defect number information in sequence, and controlling the pipeline to rotate and the preset ranging device to move in the detection direction so that the ranging device is opposite to the external defect features and the obstacle distance information is obtained.

[0128] The external defect features are detected in sequence from front to back according to the number of the external defects. The ranging device is a device above the pipeline axis at a certain distance and the ranging direction is directly below. The device can be a reflective infrared sensor. The device can translate in the pipeline detection direction. The pipeline is controlled to rotate so that the external defect features are opposite to the ranging device. The distance value corresponding to the obstacle distance information is the distance value between the ranging device and the external defect features.

[0129] Step S203: calculating the deviation distance information by difference between the obstacle distance information and the preset fixed distance value.

[0130] The fixed distance value is the distance value between the ranging device and the outer surface of the pipeline when there is no depression on the outer surface of the pipeline. The distance value corresponding to the deviation distance information is the pit depth distance of the current defect. The distance value corresponding to the deviation distance information is obtained by subtracting the fixed distance value from the distance value corresponding to the obstacle distance information.

[0131] Step S204: judging whether the distance value corresponding to the deviation distance information is greater than the preset upper limit value of the deviation.

[0132] The upper limit value of the deviation is the minimum depth value set by the worker to determine that the pit will affect the strength of the pipeline. The purpose of the judgment is to know whether the external defect will affect the strength of the pipeline.

[0133] Step S2041: if the distance value corresponding to the deviation distance information is greater than the upper limit value of the deviation, outputting the insufficient strength signal.

[0134] When the distance value corresponding to the deviation distance information is greater than the upper limit value of the deviation, it means that the depth of the external defect is deep, which will affect the strength of the pipeline. At this time, the insufficient strength signal is outputted to mark this situation for subsequent processing.

[0135] Step S2042: if the distance value corresponding to the deviation distance information is not greater than the upper limit value of the deviation, defining the external defect features as external pending defect features, and continuing to detect the remaining external defect features until the detection of all external defect features is completed, and then controlling the detection device to move to the internal detection of the pipeline.

[0136] When the distance value corresponding to the deviation distance information is not greater than the upper limit value of deviation, it indicates that the external defect feature may not affect the strength of the pipeline, and further analysis is required. At this time, the external defect feature is defined as an external pending defect feature for identification, so as to distinguish the external defect features in the figure.

[0137] Referring to Figure 4 The method for determining the external defect position information according to the external defect feature comprises the following steps:

[0138] Step S300: determining the external contour information according to the external defect feature.

[0139] The contour corresponding to the external contour information is the image contour of the external defect feature. The image can be first subjected to grayscale processing and filtering, and then the canny edge algorithm can be used to determine the contour.

[0140] Step S301: connecting the points on the external contour information to each other to determine the contour connection line segment, and determining the connection distance information according to the contour connection line segment.

[0141] The contour connection line segment is a line segment formed by connecting any two points on the external feature contour, and the distance value corresponding to the connection distance information is the distance value of any two points on the contour line, which can be determined by analyzing the pixel points.

[0142] Step S302: determining the connection distance information with the largest corresponding distance value in all connection distance information according to a preset sorting rule, and defining the contour connection line segment corresponding to the connection distance information as the longest connection line segment.

[0143] The sorting rule is a method set by the staff to sort the numerical values, such as the bubble method. According to the sorting rule, the connection distance information with the largest corresponding distance value in all connection distance information can be determined. At this time, the contour connection line segment corresponding to the connection distance information is defined as the longest connection line segment for identification, so as to distinguish different line segments.

[0144] Step S303: defining the line segment perpendicular to the longest connection line segment in the contour connection line segment as the perpendicular connection line segment, and determining the perpendicular connection line segment with the largest corresponding numerical value in all perpendicular connection line segments according to the sorting rule, and defining the perpendicular connection line segment as the intersecting connection line segment.

[0145] The perpendicular connection line segment is defined to distinguish different contour connection line segments. At this time, the perpendicular connection line segment with the largest line length value in all perpendicular connection line segments can be determined by using the sorting rule, and the perpendicular connection line segment is defined as the intersecting connection line segment for identification, so as to distinguish different line segments.

[0146] Step S304: determining the external defect position information according to the intersection point of the intersecting connection line segment and the longest connection line segment.

[0147] According to the intersection point of the intersecting connection line segment and the longest connection line segment, the point closer to the center in the external defect can be determined. At this time, the position of the intersection point is determined as the external defect position, so that the accuracy of the subsequent distance measuring device is better when detecting.

[0148] Referring to Figure 5 The method also includes a method for determining the fixed distance value, which includes:

[0149] Step S400: obtaining the extrusion position information on the detection platform.

[0150] The position corresponding to the extrusion position information is the position on the detection platform that is detected to be extruded by the pipeline. Referring to Figure 2 .

[0151] Step S401: determining the flat plate length information according to the extrusion position information and the preset sharp corner point.

[0152] The sharp corner point is the lowermost point on the detection platform, and the length value corresponding to the flat plate length information is the distance value between the sharp corner point and the position corresponding to the extrusion position information.

[0153] Step S402: calculating to determine the pipeline outer diameter information and the center height information according to the flat plate length information and the preset half-side included angle.

[0154] Referring to Figure 2 The half-side included angle is half of the included angle of the V-shaped angle of the detection platform, the outer diameter value corresponding to the pipeline outer diameter information is the outer radius of the pipeline, and the height value corresponding to the center height information is the distance value between the center line of the pipeline and the sharp corner point. The calculation method is a simple trigonometric function calculation, which is not described in detail.

[0155] Step S403: summing and calculating to determine the vertex height information according to the pipeline outer diameter information and the center height information.

[0156] The height value corresponding to the vertex height information is the distance value from the highest point of the pipeline to the sharp corner point, which is determined by adding the distance value corresponding to the center height information to the value corresponding to the pipeline outer diameter information.

[0157] Step S404: difference calculation to determine the fixed distance value according to the preset detection height value and the vertex height information.

[0158] The shortest distance between the detection height value and the straight line where the distance measuring device moves is detected. The fixed distance value of the detected pipeline can be obtained by subtracting the height value corresponding to the vertex height information from the detection height value, so that the detection platform can detect pipelines with different aperture sizes and improve the versatility.

[0159] With reference to Figure 6 The method further includes a method for determining the upper limit of deviation, which includes:

[0160] Step S500: Control the detection device to move to the height value corresponding to the center height information and enter the pipeline, and control the detection device to extend the detection wheel in the pipeline and obtain the detection pressure information in real time.

[0161] According to the height corresponding to the center height information, the detection device is moved to any specification of pipeline, and the detection device can enter from the center of the pipeline. At this time, the detection wheel is controlled to extend to approach the inner wall of the pipeline, so as to facilitate subsequent detection. The pressure value corresponding to the detection pressure information is the pressure value detected on the detection wheel, which can be obtained by installing a pressure sensor on the detection wheel.

[0162] Step S501: Stop the detection wheel from extending when the pressure value corresponding to the detection pressure information is equal to the preset fixed pressure value, and obtain the pipeline inner diameter information according to the extension of the detection wheel.

[0163] The fixed pressure value is the pressure value that the worker sets to determine when the detection wheel abuts against the inner wall of the pipeline. When the pressure value corresponding to the detection pressure information is equal to the fixed pressure value, it indicates that the detection wheel has abutted against the inner wall of the pipeline. At this time, the inner radius of the pipeline can be obtained according to the extension of the detection wheel, and the information of the inner radius of the pipeline, i.e., the pipeline inner diameter information, is recorded.

[0164] Step S502: Calculate the difference between the pipeline outer diameter information and the pipeline inner diameter information to determine the pipeline wall thickness information.

[0165] The thickness value corresponding to the pipeline wall thickness information is the wall thickness of the pipeline, which is determined by subtracting the value corresponding to the pipeline inner diameter information from the value corresponding to the pipeline outer diameter information.

[0166] Step S503: Calculate according to the pipeline wall thickness information and the preset influence coefficient value to determine the upper limit of deviation.

[0167] The influence coefficient value is a constant value set by the worker. The upper limit of deviation can be determined by multiplying the pipeline wall thickness by the influence coefficient value, so that different specifications of pipelines have different upper limits of deviation, so that the pipeline strength determination is more accurate.

[0168] With reference to Figure 7 If the value corresponding to the vibration value information is not within a reasonable range, the pipeline strength detection method further includes:

[0169] Step S600: A determination interval with a preset fixed length is established on a preset time axis in a forward direction, and the maximum vibration value information and the minimum vibration value information are determined in the determination interval according to a sorting rule, and the maximum vibration value information is defined as the maximum vibration value information, and the minimum vibration value information is defined as the minimum vibration value information.

[0170] The time axis is a coordinate axis composed of time points and oriented in a forward direction of time elapse, the fixed length is a fixed value set by a worker, the determination interval is used to collect and analyze data in the fixed length after the detection wheel encounters a defect, and the maximum vibration value information and the minimum vibration value information are defined to distinguish different vibration value information, which is convenient for subsequent analysis.

[0171] Step S601: The maximum vibration value information and the minimum vibration value information are used for difference calculation to determine vibration difference information.

[0172] The vibration difference information corresponds to the difference between the minimum vibration value and the maximum vibration value detected in the fixed length after the detection wheel encounters a defect, and the minimum vibration value is generally a value without contacting a depression, that is, 0.

[0173] Step S602: It is determined whether the vibration value corresponding to the vibration difference information is less than a preset upper vibration limit value.

[0174] The upper vibration limit value is a maximum allowed vibration difference value set by a worker to determine that the depth of a depression does not affect the strength of a pipeline, and the purpose of the determination is to know whether the current vibration difference value is too large, so as to determine whether the defect will have a greater impact on the strength of the pipeline.

[0175] Step S6021: If the vibration value corresponding to the vibration difference information is not less than the upper vibration limit value, an insufficient strength signal is output.

[0176] When the vibration value corresponding to the vibration difference information is not less than the upper vibration limit value, it indicates that the defect detected at this time will affect the strength of the pipeline, and an insufficient strength signal is output to mark this situation, which is convenient for a worker to know the situation.

[0177] Step S6022: If the vibration value corresponding to the vibration difference information is less than the upper vibration limit value, the internal defect position information is determined according to the rotation angle information and the forward length information, and the internal defect feature is defined as an internal pending defect feature.

[0178] When the vibration difference information corresponds to a vibration value less than the vibration upper limit value, it indicates that the detected defect may not affect the strength of the pipeline, and further analysis is required at this time.

[0179] Referring to Figure 8 After the internal pending defect feature is determined, the pipeline strength detection method further includes:

[0180] Step S700: Establish a detection interval with an internal pending defect feature as the center, a detection radian value being a preset detection radian, and a detection width value being a preset detection width.

[0181] The detection radian and the detection width are both values that can affect the defects when they are close, and the corresponding detection interval is established with the internal pending defect feature as the center, so that the internal and external pending defects can be analyzed to determine whether the strength of the pipeline is affected by the pending defects.

[0182] Step S701: Determine whether there is an external pending defect feature in the detection interval.

[0183] The purpose of the determination is to determine whether there is an external pending defect feature within a certain range of the internal pending defect feature, so as to determine whether the strength of the pipeline will be affected.

[0184] Step S7011: If there is no external pending defect feature in the detection interval, cancel the identification of the internal pending defect feature and continue to control the detection equipment to detect.

[0185] When there is no external pending defect feature in the detection interval, it indicates that the internal pending defect feature will not affect the strength of the pipeline regardless of any external pending defect feature, and at this time, the identification of the internal pending defect feature is canceled to enable the pipeline to be normally installed subsequently.

[0186] Step S7012: If there is an external pending defect feature in the detection interval, output a strength deficiency signal.

[0187] When there is an external pending defect feature in the detection interval, it indicates that there is a case where the internal and external defects of the pipeline are combined to affect the strength of the pipeline, and at this time, the strength deficiency signal is outputted to enable the worker to know in time.

[0188] Referring to Figure 9 Based on the same inventive concept, the embodiments of the present application provide a pipeline strength detection system, which comprises:

[0189] An acquisition module is configured to acquire platform state information of a preset detection platform;

[0190] A processing module is connected with the acquisition module and the judgment module, and is configured to store and process information;

[0191] The judgment module is connected with the acquisition module and the processing module, and is configured to judge information;

[0192] When the state corresponding to the platform state information is consistent with a preset in-place state, the processing module controls a pipeline on the detection platform to rotate a preset fixed number of turns, and the acquisition module acquires external image information of the pipeline;

[0193] The processing module performs feature recognition on an image corresponding to the external image information, so that the judgment module judges whether there is a preset external defect feature;

[0194] If the judgment module judges that there is an external defect feature, the processing module outputs an insufficient strength signal;

[0195] If the judgment module judges that there is no external defect feature, the processing module controls the preset detection device to move to the inside of the pipeline and makes the detection wheel abut against the inner side wall of the pipeline, so that the detection device rotates circumferentially in the inside of the pipeline, and the acquisition module acquires rotation angle information and vibration value information during the rotation;

[0196] The judgment module judges whether a value corresponding to the vibration value information is within a preset reasonable range;

[0197] If the judgment module judges that the value corresponding to the vibration value information is not within the reasonable range, the processing module outputs an insufficient strength signal;

[0198] If the judgment module judges that the value corresponding to the vibration value information is within the reasonable range, the processing module continues to rotate the detection, until an angle value corresponding to the rotation angle information is consistent with a preset detection angle, and after the consistency, controls the detection device to move a preset fixed length along a preset detection direction and makes the acquisition module acquire forward length information;

[0199] The judgment module judges whether a length value corresponding to the forward length information is consistent with a preset pipeline length value;

[0200] If the judgment module judges that the length value corresponding to the forward length information is consistent with the pipeline length value, the processing module outputs a work completion signal and controls the detection device to stop working;

[0201] If the judgment module judges that the length value corresponding to the forward length information is not consistent with the pipeline length value, the processing module makes a value corresponding to the rotation angle information zero and performs rotation detection again;

[0202] The external defect rechecking module further checks the external defect features, so that the lighter defects do not easily affect the accuracy of normal detection.

[0203] The external defect position determining module is used for determining the position of the external defect features, so that the detection equipment can be moved to a more appropriate place to detect the external defect features.

[0204] The fixed distance value determining module determines a reasonable fixed distance value according to the pipe placement situation, so as to improve the detection accuracy.

[0205] The deviation upper limit value determining module determines a reasonable deviation upper limit value according to the pipe wall thickness situation, so that the pipe strength detection is more accurate.

[0206] The internal defect rechecking module further checks the internal defect features, so that the lighter defects do not easily affect the accuracy of normal detection.

[0207] The pending defect determining module detects the internal and external pending defect situations, so as to determine whether the lighter defects will affect the pipe strength.

[0208] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0209] The embodiment of the present application provides a computer readable storage medium, which stores a computer program capable of being loaded by a processor and executing a pipe strength detection method.

[0210] The computer storage medium includes, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes.

[0211] Based on the same inventive concept, the embodiment of the present application provides an intelligent terminal, which comprises a memory and a processor, and the memory stores a computer program capable of being loaded by the processor and executing a pipe strength detection method.

[0212] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0213] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in the specification (including the abstract and drawings) can be replaced by other equivalent or similar features unless specifically described. That is, each feature is only an example of a series of equivalent or similar features unless specifically described.

Claims

1. A method for testing the strength of a pipeline, characterized in that, include: Obtain the platform status information of the preset detection platform; when the status corresponding to the platform status information is consistent with the preset positioning status, control the pipe on the detection platform to rotate a preset fixed number of turns, and obtain the external image information of the pipe; perform feature recognition in the image corresponding to the external image information to determine whether there are preset external defect features; If external defect features are present, an insufficient strength signal is output; if no external defect features are present, the preset detection device is controlled to move into the pipeline and the detection wheel is made to abut against the inner wall of the pipeline so that the detection device rotates circumferentially inside the pipeline, and the rotation angle information and vibration value information are acquired during the rotation. Determine whether the vibration data is within a preset reasonable range; If the vibration value is outside the reasonable range, an insufficient intensity signal is output. If the vibration value is within the reasonable range, rotation detection continues until the angle value corresponds to the rotation angle is consistent with the preset detection angle. Once consistent, the detection device is controlled to move a preset fixed length along the preset detection direction and acquire the forward length information. It is then determined whether the forward length information corresponds to the preset pipe length value. If the forward length information corresponds to the pipe length value, an operation end signal is output and the detection device is controlled to stop operation. If the forward length information corresponds to the pipe length value, the value corresponding to the rotation angle is reset to zero and rotation detection is performed again.

2. The pipeline strength testing method according to claim 1, characterized in that, When external defect features are present, the pipeline strength detection method further includes: determining the location information of external defects based on the external defect features; numbering the external defect features in the detection direction based on the location information of external defects to determine external defect number information; sequentially detecting external defect features based on the external defect number information, and controlling the pipeline rotation and the movement of a preset ranging device in the detection direction based on the location information of external defects so that the ranging device is relative to the external defect feature and the obstacle distance information is obtained; calculating the difference between the obstacle distance information and a preset fixed distance value to determine the deviation distance information; determining whether the distance value corresponding to the deviation distance information is greater than a preset upper limit value of deviation; if the distance value corresponding to the deviation distance information is greater than the upper limit value of deviation, outputting a strength deficiency signal; if the distance value corresponding to the deviation distance information is not greater than the upper limit value of deviation, defining the external defect feature as an external undetermined defect feature, and continuing to detect the remaining external defect features until the detection of all external defect features is completed, and controlling the detection device to move to the inside of the pipeline for detection after the detection is completed.

3. The pipeline strength testing method according to claim 2, characterized in that, The method for determining the location information of external defects based on external defect characteristics includes: determining external contour information based on external defect characteristics; connecting points on the external contour information to each other to determine contour connecting segments, and determining connection distance information based on contour connecting segments; determining the connection distance information with the largest corresponding distance value among all connection distance information according to a preset sorting rule, and defining the contour connecting segment corresponding to this connection distance information as the longest connecting segment; defining the line segment perpendicular to the longest connecting segment among the contour connecting segments as a perpendicular connecting segment, and determining the perpendicular connecting segment with the largest corresponding value among all perpendicular connecting segments according to the sorting rule, and defining this perpendicular connecting segment as an intersecting connecting segment; determining the location information of external defects based on the intersection of the intersecting connecting segments and the longest connecting segment.

4. The pipeline strength testing method according to claim 3, characterized in that, It also includes a method for determining a fixed distance value, which includes: acquiring the extrusion position information on the detection platform; determining the plate length information based on the extrusion position information and a preset sharp corner point; calculating the pipe outer diameter information and center height information based on the plate length information and a preset half-side included angle; summing the pipe outer diameter information and center height information to determine the vertex height information; and calculating the difference between the preset detection height value and the vertex height information to determine the fixed distance value.

5. The pipeline strength testing method according to claim 4, characterized in that, It also includes a method for determining the upper limit of the deviation, which includes: controlling the detection equipment to move to the height value corresponding to the center height information and enter the pipeline, and controlling the detection equipment to extend the detection wheel in the pipeline and acquiring the detection pressure information in real time; stopping the extension of the detection wheel when the pressure value corresponding to the detection pressure information is equal to the preset fixed pressure value, and acquiring the pipeline inner diameter information based on the extension of the detection wheel; calculating the difference between the pipeline outer diameter information and the pipeline inner diameter information to determine the pipeline wall thickness information; and calculating the upper limit of the deviation based on the pipeline wall thickness information and the preset influence coefficient value.

6. The pipeline strength testing method according to claim 2, characterized in that, If the vibration value is not within a reasonable range, the pipeline strength detection method further includes: establishing a judgment interval with a preset fixed duration on a preset time axis, and determining the vibration value with the largest and smallest values ​​within the judgment interval according to a sorting rule, defining the vibration value with the largest value as the maximum vibration value and the vibration value with the smallest value as the minimum vibration value; calculating the difference between the maximum and minimum vibration values ​​to determine the vibration difference information; determining whether the vibration value corresponding to the vibration difference information is less than a preset vibration upper limit; if the vibration value corresponding to the vibration difference information is not less than the vibration upper limit, outputting an insufficient strength signal; if the vibration value corresponding to the vibration difference information is less than the vibration upper limit, determining the internal defect location information based on the rotation angle and forward length information, the location corresponding to the internal defect location information being the location of the defect detected inside the pipeline, and defining the defect detected inside the pipeline as an internal undetermined defect feature.

7. The pipeline strength testing method according to claim 6, characterized in that, After the internal undetermined defect features are determined, the pipeline strength testing method further includes: establishing a testing interval on the pipeline with a preset detection arc value and a preset detection width value, centered on the internal undetermined defect features; determining whether there are external undetermined defect features in the testing interval; if there are no external undetermined defect features in the testing interval, canceling the internal undetermined defect feature identification and continuing to control the testing equipment for testing; if there are external undetermined defect features in the testing interval, outputting an insufficient strength signal.

8. A pipeline strength testing system, characterized in that, include: The acquisition module is used to acquire the platform status information of the preset detection platform; The processing module, connected to the acquisition module and the judgment module, is used for information storage and processing; the judgment module, connected to the acquisition module and the processing module, is used for information judgment; when the state corresponding to the platform status information is consistent with the preset position state, the processing module controls the pipe on the detection platform to rotate a preset fixed number of turns, and causes the acquisition module to acquire the external image information of the pipe; the processing module performs feature recognition in the image corresponding to the external image information so that the judgment module can determine whether there are preset external defect features; If the judgment module determines that there are external defect features, the processing module outputs an insufficient strength signal; if the judgment module determines that there are no external defect features, the processing module controls the preset detection device to move into the pipeline and makes the detection wheel abut against the inner wall of the pipeline so that the detection device rotates circumferentially inside the pipeline, and during the rotation, the acquisition module acquires the rotation angle information and vibration value information. The judgment module determines whether the value corresponding to the vibration numerical information is within a preset reasonable range; if the judgment module determines that the value corresponding to the vibration numerical information is not within a reasonable range, the processing module outputs an insufficient intensity signal; if the judgment module determines that the value corresponding to the vibration numerical information is within a reasonable range, the processing module continues to rotate and detect until the angle value corresponding to the rotation angle information is consistent with the preset detection angle, and after consistency, it controls the detection device to move a preset fixed length along the preset detection direction and makes the acquisition module acquire the forward length information; The judgment module determines whether the length value corresponding to the forward length information is consistent with the preset pipe length value. If the judgment module determines that the length value corresponding to the forward length information is consistent with the pipe length value, the processing module outputs an operation end signal and controls the detection equipment to stop operation. If the judgment module determines that the length value corresponding to the forward length information is inconsistent with the pipe length value, the processing module resets the value corresponding to the rotation angle information to zero and performs rotation detection again.

9. A smart terminal, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as any one of the pipe strength testing methods as claimed in claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The system contains a computer program that can be loaded by a processor and executed as any one of the pipe strength testing methods as described in claims 1 to 7.

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