CN113447574B - Ultrasonic rail flaw detection-based map display method and device - Google Patents
Ultrasonic rail flaw detection-based map display method and device Download PDFInfo
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- CN113447574B CN113447574B CN202110697998.5A CN202110697998A CN113447574B CN 113447574 B CN113447574 B CN 113447574B CN 202110697998 A CN202110697998 A CN 202110697998A CN 113447574 B CN113447574 B CN 113447574B
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- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
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Abstract
The embodiment of the application discloses a graph display method and device based on ultrasonic rail flaw detection. The method comprises the following steps: acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image; determining a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate according to the first abnormal echo coordinate; and displaying the ultrasonic rail flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate. According to the embodiment of the application, the B scanning map of the ultrasonic rail flaw detection is displayed in a thermodynamic diagram form, so that the general condition and the dense area of the rail flaw can be visually observed.
Description
Technical Field
The application relates to the technical field of image processing, in particular to a graph display method and device based on ultrasonic rail flaw detection.
Background
In the rail ultrasonic flaw detection process, the detection result can be displayed in the form of an A scanning image and a B scanning image. The A scanning image is a waveform display, the abscissa on the screen represents time, the ordinate represents the intensity of the reflected wave, and the operator can roughly estimate the severity of the railway damage according to the intensity of the reflected wave and calculate the position of the railway damage according to the position of the reflected wave on the abscissa. The B-scan shows the relative position of the reflected wave signal on one graph.
The conventional method for plotting a B-scan is to convert a recorded abnormal echo point into one point on a rail profile through a sound path and to obtain an image by continuously plotting multiple points. This drawing method is usually a straight line displayed on the B-scan, or a cluster of straight lines after some image processing.
However, this plotting method does not allow a non-professional user to visually observe the general situation of the railroad damage and the area where the damage is concentrated, and is not convenient for the user to identify the location of the damage.
Disclosure of Invention
Because the existing method has the problems, the embodiment of the application provides a graph display method and a graph display device based on ultrasonic rail flaw detection.
Specifically, the embodiment of the present application provides the following technical solutions:
in a first aspect, an embodiment of the present application provides a map display method based on ultrasonic rail flaw detection, including:
acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image;
determining a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate according to the first abnormal echo coordinate;
and displaying the ultrasonic rail flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
Optionally, the method further includes:
acquiring second abnormal echo coordinates in a plurality of ultrasonic track flaw detection B scanning images within preset time;
determining the weight corresponding to the second abnormal echo coordinate according to the frequency of the second abnormal echo coordinate appearing in the multiple ultrasonic track flaw detection B scanning images;
and displaying the B scanning image in a thermodynamic diagram form according to the weight corresponding to the second abnormal echo coordinate.
Optionally, when the ultrasonic rail flaw detection B scan is displayed in a thermal diagram form in real time, the method further includes:
adding an ultrasonic rail flaw detection schematic diagram in the thermodynamic diagram; the ultrasonic rail flaw detection schematic diagram consists of a rail head, a rail jaw and a rail bottom, and the rail head, the rail jaw and the rail bottom are respectively corresponding to display parts of the rail head, the rail jaw and the rail bottom in the thermodynamic diagram.
Optionally, determining, according to the first abnormal echo coordinate, a thermal point coordinate corresponding to the first abnormal echo coordinate, and a weight corresponding to the thermal point coordinate, includes:
respectively taking the first abnormal echo coordinate, and an upper coordinate and a lower coordinate which are closest to the first abnormal echo coordinate as the thermal point coordinate;
and setting the weight of the thermal point coordinate corresponding to the upper coordinate closest to the first abnormal echo coordinate and the weight of the lower coordinate closest to the first abnormal echo coordinate to be half of the weight corresponding to the first abnormal echo coordinate.
Optionally, determining a weight corresponding to the first abnormal echo coordinate includes:
and taking the amplitude of the first abnormal echo coordinate as the weight corresponding to the first abnormal echo coordinate, or taking the area of the abnormal echo where the first abnormal echo coordinate is located as the weight corresponding to the first abnormal echo coordinate.
Optionally, after determining the weight corresponding to the second abnormal echo coordinate, the method further includes:
and carrying out noise point filtration on the weight of the second abnormal echo coordinate, and rejecting the second abnormal echo coordinate with lower weight.
In a second aspect, an embodiment of the present application provides an image display apparatus based on ultrasonic rail flaw detection, the apparatus including:
the first processing module is used for acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image;
the second processing module is used for determining a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate according to the first abnormal echo coordinate;
and the third processing module is used for displaying the ultrasonic track flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
Optionally, the second processing module is specifically configured to:
respectively taking the first abnormal echo coordinate, and an upper coordinate and a lower coordinate which are closest to the first abnormal echo coordinate as the thermal point coordinate;
and setting the weight of the thermal point coordinate corresponding to the upper coordinate closest to the first abnormal echo coordinate and the weight of the lower coordinate closest to the first abnormal echo coordinate to be half of the weight corresponding to the first abnormal echo coordinate.
In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the diagram display method based on ultrasonic rail inspection according to the first aspect.
In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the map display method based on ultrasonic rail flaw detection according to the first aspect.
According to the technical scheme, the first abnormal echo coordinate in the ultrasonic rail flaw detection A scanning image is obtained, and then the heat point coordinate corresponding to the first abnormal echo coordinate and the weight corresponding to the heat point coordinate are determined according to the first abnormal echo coordinate. And finally displaying the heat points in a thermodynamic diagram drawn by the heat points to different degrees according to the weight corresponding to the coordinates of the heat points. According to the embodiment of the application, the B scanning image of the ultrasonic rail flaw detection is displayed in the form of the thermodynamic diagram, so that a user can visually observe the overall condition and the dense area of the rail flaw.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is also possible for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a method for ultrasonic rail based inspection according to an embodiment of the present application;
FIG. 2 is a second flowchart of a graphical display method for ultrasonic rail based inspection provided by an embodiment of the present application;
FIG. 3 is a third flowchart of a graphical display method for ultrasonic rail based inspection according to an embodiment of the present application;
FIG. 4 is a thermodynamic diagram including a schematic diagram of ultrasonic rail inspection provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of a conventional B-scan display mode provided in an embodiment of the present application;
FIG. 6 is a schematic view of a thermal B-scan display provided by an embodiment of the present application;
FIG. 7 is a schematic structural diagram of a diagram display apparatus for ultrasonic rail flaw detection according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart showing one of diagram display methods for ultrasonic rail flaw detection according to embodiments of the present application, fig. 2 is a second flowchart showing the diagram display method for ultrasonic rail flaw detection according to embodiments of the present application, fig. 3 is a third flowchart showing the diagram display method for ultrasonic rail flaw detection according to embodiments of the present application, and fig. 4 is a thermodynamic diagram including a schematic diagram of ultrasonic rail flaw detection according to embodiments of the present application. The method for displaying a diagram based on ultrasonic rail flaw detection provided by the embodiment of the present application is explained and explained in detail with reference to fig. 1 to 4, and as shown in fig. 1, the method for displaying a diagram based on ultrasonic rail flaw detection provided by the embodiment of the present application includes:
step 101: acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image;
in this step, it should be noted that the principle of rail flaw detection is as follows: the probe sends ultrasonic pulse into the rail, the flaw detection vehicle starts to receive signals when the pulse is transmitted until the signals are stopped within the maximum range allowing detection, and the signals returned when the flaw is encountered within the period of time are displayed on the screen in a waveform form, so that an A scanning image is formed, wherein the A scanning image is displayed in a waveform form, the abscissa on the screen represents time, and the ordinate represents the intensity of reflected waves, so that an operator can roughly estimate the severity of the rail damage according to the intensity of the reflected waves and calculate the position of the rail damage according to the position of the reflected waves on the abscissa.
In this step, when a flaw exists in the rail, a set of data of abnormal echoes can be obtained from the a-scan, the sound path of the ultrasonic wave can be known after calibration, and the sound path of the ultrasonic wave can be subjected to trigonometric function operation to obtain a set of coordinates (X1, Y1) (X2, Y2) corresponding to the abnormal echoes, wherein N coordinates are assumed to be provided, (Xn, yn), and each coordinate includes an amplitude of the maximum abnormal echo of the a-scan, that is, a vertical coordinate value of each coordinate of the abnormal echo.
Step 102: determining a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate according to the first abnormal echo coordinate;
in this step, after obtaining the coordinates of the abnormal echo, assuming that the current coordinates of the abnormal echo are (Xi, yi), in order to make the image clearly seen, the current coordinates of the abnormal echo and the upper and lower coordinates closest to the current coordinates of the abnormal echo may be set as thermal points, for example, the coordinates (Xi, yi + 1), (Xi, yi-1) may also be set as thermal points.
In this step, the amplitude corresponding to the abnormal echo coordinate is used as a weight, or the abnormal echo is integrated (area is obtained) in time, and the integration result is used as a weight, so as to mark the weights of the N abnormal echo coordinates. And setting the weight of the upper coordinate and the lower coordinate closest to the current abnormal echo coordinate to be half of the single abnormal echo coordinate (Xi, yi) or smoothing the weight.
Step 103: and displaying the ultrasonic track flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
In this step, after the weights corresponding to all the thermal point coordinates are obtained, a thermodynamic diagram is generated by the thermal points based on the existing thermodynamic diagram drawing method, and the thermodynamic diagram is displayed in different degrees according to the weight corresponding to the thermal point coordinates. For example, the heat points with higher weights may be highlighted when drawing the thermodynamic diagram. The B-scan map of the ultrasonic rail flaw detection is displayed in the form of a thermodynamic diagram, as shown in fig. 6, and the display mode of the conventional B-scan map is shown in fig. 5, and by comparing fig. 5 with fig. 6, it can be seen that the map display method based on the ultrasonic rail flaw detection provided by the embodiment of the present application displays the conventional B-scan map in the form of a thermodynamic diagram, and the general situation and dense areas of the flaw can be visually observed.
It should be noted that the following factors are critical to the quantitative determination of the damage:
1. type of injury (pore, crack echo is bigger)
2. Shape of lesion (proportional to size of area, larger echo)
3. Orientation of damage (maximum echo at normal incidence)
4. Roughness of the damaged surface (smoother, less spurious emission, greater echo)
5. Position of injury (if in the near field of the sound field, the possible error is bigger)
The thermodynamic B diagram reflects the comprehensive situation of the five points.
According to the technical scheme, the first abnormal echo coordinate in the ultrasonic rail flaw detection A scanning image is obtained, and then the heat point coordinate corresponding to the first abnormal echo coordinate and the weight corresponding to the heat point coordinate are determined according to the first abnormal echo coordinate. And finally displaying the heat map drawn by the heat point in different degrees according to the weight corresponding to the coordinates of the heat point. According to the embodiment of the application, the B scanning image of the ultrasonic rail flaw detection is displayed in the form of the thermodynamic diagram, so that a user can visually observe the overall condition and the dense area of the rail flaw.
Based on the content of the foregoing embodiment, in this embodiment, the method further includes:
acquiring second abnormal echo coordinates in a plurality of ultrasonic track flaw detection B scanning images within preset time;
determining the weight corresponding to the second abnormal echo coordinate according to the frequency of the second abnormal echo coordinate appearing in the multiple ultrasonic track flaw detection B scanning images;
and displaying the B scanning map in a thermodynamic diagram form according to the weight corresponding to the second abnormal echo coordinate.
In this step, a display mode of a thermal B-scan based on big data is provided, see fig. 3. Firstly, N B scanning images (N is more than or equal to 5) are obtained, abnormal echo coordinates in each B scanning image are extracted, and the weight corresponding to each abnormal echo coordinate is determined by comparing the repeated occurrence times of each abnormal echo coordinate in the N B scanning images. For example: the data obtained from 5B scans with abnormal echoes mapped onto the longitudinal section of the rail are as follows:
the first time (three abnormal echo points) (100, 120) (130, 180) (180, 200)
Second time (three abnormal echo points) (30, 120) (130, 180) (180, 200)
Third time (two abnormal echo points) (130, 180) (180, 200)
Fourth time (three abnormal echo points) (80, 110) (130, 180) (180, 200)
Fifth (two abnormal echo points) (100 ) (130, 180)
Of these, this point (130, 180) appears five times, and therefore the weight of this coordinate point is set to 5, and the weight of this coordinate point (180, 200) appears four times, and the weight of this coordinate point is 4.
It can be understood that the weights of the two points should be highlighted when drawing a large data thermal B-scan, and the other points appearing once are noisy at a high probability, and data processing can be performed. These noisy data are not shown in thermal B-scans of large data.
Based on the content of the foregoing embodiment, in this embodiment, when displaying the ultrasonic rail flaw detection B scan in a thermal map form in real time, the method further includes:
adding an ultrasonic rail flaw detection schematic diagram in the thermodynamic diagram; the ultrasonic rail flaw detection schematic diagram consists of a rail head, a rail jaw and a rail bottom, and the rail head, the rail jaw and the rail bottom display parts in the thermodynamic diagram respectively correspond to the rail head, the rail jaw and the rail bottom display parts.
In this embodiment, in order to enable a user to more conveniently identify a position of a rail defect from a thermal B-scan, a schematic diagram of rail flaw detection is added to the thermal B-scan, as shown in fig. 4, a left portion in the diagram is the schematic diagram of rail flaw detection, the schematic diagram includes specific distribution positions of a rail head, a rail jaw, a rail bottom and a bolt hole center line, and the user can determine a rail position corresponding to the defect displayed in a right portion of the thermal B-scan by using the schematic diagram as a reference.
Based on the content of the foregoing embodiment, in this embodiment, determining, according to the first abnormal echo coordinate, a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate includes:
respectively taking the first abnormal echo coordinate, and an upper coordinate and a lower coordinate which are closest to the first abnormal echo coordinate as the thermal point coordinate;
and setting the weight of the thermal point coordinate corresponding to the upper coordinate closest to the first abnormal echo coordinate and the weight of the lower coordinate closest to the first abnormal echo coordinate to be half of the weight corresponding to the first abnormal echo coordinate.
Based on the content of the foregoing embodiment, in this embodiment, determining the weight corresponding to the first abnormal echo coordinate includes:
and taking the amplitude of the first abnormal echo coordinate as the weight corresponding to the first abnormal echo coordinate, or taking the area of the abnormal echo where the first abnormal echo coordinate is located as the weight corresponding to the first abnormal echo coordinate.
Based on the content of the foregoing embodiment, in this embodiment, after determining the weight corresponding to the second abnormal echo coordinate, the method further includes:
and carrying out noise point filtration on the weight of the second abnormal echo coordinate, and rejecting the second abnormal echo coordinate with lower weight.
The following is illustrated by way of specific examples:
the first embodiment:
in this embodiment, as shown in fig. 2, a diagram displaying method based on ultrasonic rail flaw detection provided in an embodiment of the present application includes:
step 201: processing the data in the A scanning image to obtain an array of corresponding maximum echo amplitudes in the valve of each sampling period;
step 202: taking the amplitude of the maximum abnormal echo corresponding to each data in the array as a weight;
step 203: expanding each data in the array by one unit in the Y-axis direction, and halving the corresponding weight;
step 204: and outputting a real-time thermodynamic B scanning map according to the weight corresponding to each data.
Second embodiment:
in this embodiment, as shown in fig. 3, a diagram displaying method based on ultrasonic rail flaw detection provided in an embodiment of the present application includes:
step 301: acquiring big data damage data;
step 302: calculating a weight of each of the damage data;
step 303: filtering the data with the weight value lower than a preset threshold value;
step 304: and outputting a thermal B scanning map according to the weight of each damage data after filtering.
Based on the same inventive concept, another embodiment of the present invention provides a diagram display apparatus based on ultrasonic rail flaw detection, as shown in fig. 7, the apparatus including:
the first processing module 1 is used for acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image;
the second processing module 2 is configured to determine, according to the first abnormal echo coordinate, a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate;
and the third processing module 3 is used for displaying the ultrasonic track flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
In this embodiment, the principle of rail flaw detection is as follows: the probe sends ultrasonic pulse into the rail, the flaw detection vehicle starts to receive signals when the pulse is transmitted until the signals are stopped within the maximum range allowing detection, and the signals returned when the flaw is encountered within the period of time are displayed on the screen in a waveform form, so that an A scanning image is formed, wherein the A scanning image is displayed in a waveform form, the abscissa on the screen represents time, and the ordinate represents the intensity of reflected waves, so that an operator can roughly estimate the severity of the rail damage according to the intensity of the reflected waves and calculate the position of the rail damage according to the position of the reflected waves on the abscissa.
In this embodiment, when a flaw occurs in the rail, a set of data of abnormal echoes can be obtained from the a-scan, the sound path of the ultrasonic wave can be known after calibration, and the coordinates (X1, Y1) (X2, Y2) corresponding to a set of abnormal echoes can be obtained by performing trigonometric function operation on the sound path of the ultrasonic wave, wherein N coordinates are assumed to be provided, and each coordinate includes an amplitude of a maximum abnormal echo of the a-scan, that is, a vertical coordinate value of each abnormal echo coordinate.
In the present embodiment, after obtaining the abnormal echo coordinates, assuming that the current abnormal echo coordinates are (Xi, yi), in order to make the image look conspicuous, the current abnormal echo coordinates and the upper and lower coordinates closest to the current abnormal echo coordinates may both be set as the heat points, for example, the coordinates (Xi, yi + 1), (Xi, yi-1) are also set as the heat points.
In this embodiment, the amplitude corresponding to the abnormal echo coordinate is used as a weight, or the abnormal echo is integrated (area-obtained) in time, and the integration result is used as a weight, so as to mark the weights of the N abnormal echo coordinates. And setting the weight of the upper coordinate and the lower coordinate closest to the current abnormal echo coordinate to be half of the single abnormal echo coordinate (Xi, yi) or smoothing the weight.
In this embodiment, after obtaining the weights corresponding to all the coordinates of the thermal force points, the B-scan map of the ultrasonic rail flaw detection can be displayed in the form of a thermodynamic diagram based on the existing thermodynamic diagram drawing method, as shown in fig. 6, and the existing B-scan map display mode is shown in fig. 5, and by comparing fig. 5 with fig. 6, it can be seen that the graph display method based on the ultrasonic rail flaw detection provided by the embodiment of the present application displays the existing B-scan map in the form of a thermodynamic diagram, and the general situation and dense areas of the flaw can be visually observed.
According to the technical scheme, the first abnormal echo coordinate in the ultrasonic rail flaw detection A scanning image is obtained, and then the heat point coordinate corresponding to the first abnormal echo coordinate and the weight corresponding to the heat point coordinate are determined according to the first abnormal echo coordinate. And finally displaying the heat map drawn by the heat point in different degrees according to the weight corresponding to the coordinates of the heat point. The embodiment of the application displays the ultrasonic track flaw detection B scanning image in a form of thermodynamic diagram, so that a user can visually observe the general condition and the dense area of the track flaw.
Based on the content of the foregoing embodiment, in this embodiment, the second processing module is specifically configured to:
respectively taking the first abnormal echo coordinate, and an upper coordinate and a lower coordinate which are closest to the first abnormal echo coordinate as the thermal point coordinate;
and setting the weight of the thermal point coordinate corresponding to the upper coordinate closest to the first abnormal echo coordinate and the weight of the lower coordinate closest to the first abnormal echo coordinate to be half of the weight corresponding to the first abnormal echo coordinate.
The diagram display device based on ultrasonic rail flaw detection described in this embodiment may be used to implement the method embodiments, and the principle and technical effects are similar, which are not described herein again.
Based on the same inventive concept, another embodiment of the present invention provides an electronic device, which, with reference to the schematic structural diagram of the electronic device shown in fig. 8, specifically includes the following contents: a processor 801, memory 802, communication interface 803, and communication bus 804;
the processor 801, the memory 802 and the communication interface 803 complete communication with each other through the communication bus 804; the communication interface 803 is used for realizing information transmission between devices;
the processor 801 is configured to call up a computer program in the memory 802, and when the processor executes the computer program, the processor implements the above-mentioned map display method based on ultrasonic rail flaw detection, for example: acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image; determining a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate according to the first abnormal echo coordinate; and displaying the ultrasonic rail flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
Based on the same inventive concept, another embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the above-mentioned method for displaying an ultrasonic-based rail flaw detection map, for example: acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image; determining a thermal point coordinate corresponding to the first abnormal echo coordinate and a weight corresponding to the thermal point coordinate according to the first abnormal echo coordinate; and displaying the ultrasonic track flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable 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.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on such understanding, the above technical solutions may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method for displaying an image based on ultrasonic rail inspection according to various embodiments or some portions of embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A diagram display method based on ultrasonic rail flaw detection is characterized by comprising the following steps:
acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image;
respectively taking the first abnormal echo coordinate, and an upper coordinate and a lower coordinate which are closest to the first abnormal echo coordinate as thermal point coordinates corresponding to the first abnormal echo coordinate;
setting the weight of a thermal point coordinate corresponding to an upper coordinate closest to the first abnormal echo coordinate and the weight of a lower coordinate closest to the first abnormal echo coordinate to be half of the weight corresponding to the first abnormal echo coordinate;
taking the amplitude of the first abnormal echo coordinate as a weight corresponding to the first abnormal echo coordinate, or taking the area of the abnormal echo where the first abnormal echo coordinate is located as a weight corresponding to the first abnormal echo coordinate;
and displaying the ultrasonic rail flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
2. The ultrasonic rail flaw detection-based map display method according to claim 1, further comprising:
acquiring second abnormal echo coordinates in a plurality of ultrasonic track flaw detection B scanning images within preset time;
determining the weight corresponding to the second abnormal echo coordinate according to the frequency of the second abnormal echo coordinate appearing in the multiple ultrasonic track flaw detection B scanning images;
and displaying the B scanning image in a thermodynamic diagram form according to the weight corresponding to the second abnormal echo coordinate.
3. The ultrasonic rail flaw detection-based map display method according to claim 1 or 2, wherein when displaying the ultrasonic rail flaw detection B scan map in a form of a thermal map in real time, the method further comprises:
adding an ultrasonic rail flaw detection schematic diagram in the thermodynamic diagram; the ultrasonic rail flaw detection schematic diagram consists of a rail head, a rail jaw and a rail bottom, and the rail head, the rail jaw and the rail bottom are respectively corresponding to display parts of the rail head, the rail jaw and the rail bottom in the thermodynamic diagram.
4. The ultrasonic rail flaw detection-based map display method according to claim 2, further comprising, after determining the weight corresponding to the second abnormal echo coordinate:
and carrying out noise point filtration on the weight of the second abnormal echo coordinate, and rejecting the second abnormal echo coordinate with lower weight.
5. An ultrasonic rail flaw detection-based map display device, characterized by comprising:
the first processing module is used for acquiring a first abnormal echo coordinate in an ultrasonic rail flaw detection A scanning image;
the second processing module is used for respectively taking the first abnormal echo coordinate, and an upper coordinate and a lower coordinate which are closest to the first abnormal echo coordinate as a thermal point coordinate corresponding to the first abnormal echo coordinate;
setting the weight of a thermal point coordinate corresponding to an upper coordinate closest to the first abnormal echo coordinate and the weight of a lower coordinate closest to the first abnormal echo coordinate to be half of the weight corresponding to the first abnormal echo coordinate;
taking the amplitude of the first abnormal echo coordinate as a weight corresponding to the first abnormal echo coordinate, or taking the area of the abnormal echo where the first abnormal echo coordinate is located as a weight corresponding to the first abnormal echo coordinate;
and the third processing module is used for displaying the ultrasonic track flaw detection B scanning image in a thermodynamic diagram form according to the weight corresponding to the thermal point coordinate.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the ultrasonic rail flaw detection-based map display method according to any one of claims 1 to 4.
7. A computer-readable storage medium, having stored thereon a computer program, wherein the computer program, when being executed by a processor, is adapted to carry out the steps of the method for displaying a map based on ultrasound rail inspection according to any of claims 1-4.
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