CN110288595B - Tunnel overbreak and underexcavation detection method and device, electronic equipment and storage medium - Google Patents
Tunnel overbreak and underexcavation detection method and device, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention provides a tunnel overbreak and underexcavation detection method and device, electronic equipment and a storage medium, and relates to the technical field of tunnel engineering. The tunnel overbreak and underexcavation detection method comprises the following steps: acquiring tunnel images of a plurality of positions in a tunnel; the method comprises the steps that a plurality of positions are positions on the inner wall surface of a tunnel, coordinate information of a plurality of control points is obtained, tunnel images of the plurality of positions are spliced according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model, a preset tunnel model and the three-dimensional live-action model are synthesized to obtain a mixed model, the mixed model is used for representing detection information of the overbreak of the tunnel, the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the plurality of control points. By constructing the three-dimensional live-action model and obtaining the hybrid model representing the tunnel overbreak and underbreak information according to the three-dimensional live-action model, unnecessary time and manpower resource waste is avoided, and the tunnel overbreak and underbreak detection is more visual and convenient.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a tunnel overbreak and underexcavation detection method and device, electronic equipment and a storage medium.
Background
In the tunnel construction process, the tunnel is usually excavated by taking an excavation contour line designed for the tunnel as a reference, and when the tunnel is excavated by a drilling and blasting method, the problem of over-under excavation of the tunnel is easy to occur, so that the over-under excavation detection needs to be performed on the excavated tunnel.
In the related art, by designing a rack consistent with a standard excavation contour line, for an excavation tunnel, the rack is moved from an excavation starting point to an excavation end point, in the moving process, if a rock blocking the advance of the rack exists in the tunnel, underexcavation at the position can be determined, and if a gap exists between the rock of the tunnel and the rack, overexcavation at the position can be determined.
However, in the related art, the tunnel is subjected to the overbreak and underbreak detection by manufacturing the rack, and the corresponding rack needs to be manufactured for excavation contour lines of different standards, so that unnecessary time and manpower resources are wasted.
Disclosure of Invention
The present invention is directed to a method and an apparatus for detecting tunnel under-run, an electronic device and a storage medium. In order to solve the correlation technique, carry out the surpass owing to dig the detection through making the rack to the tunnel, need make corresponding rack to the excavation profile line of different standards, wasted unnecessary time and manpower resources.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a method for detecting a tunnel under-excavation condition, where the method includes:
acquiring tunnel images of a plurality of positions in a tunnel; the plurality of positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; the tunnel is also internally provided with a plurality of control points;
acquiring coordinate information of the plurality of control points;
splicing the tunnel images at the plurality of positions according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model;
synthesizing a preset tunnel model and the three-dimensional live-action model to obtain a mixed model; the hybrid model is used for representing the detection information of the overbreak and the underexcavation of the tunnel; the preset tunnel model and the three-dimensional real scene model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points.
Further, the splicing the tunnel images at the plurality of positions according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model includes:
sequencing the tunnel images of the plurality of positions;
receiving an input selection instruction at a control point on each tunnel image;
according to the selection instruction, determining coordinate information of a control point to which the selection instruction is directed;
giving coordinate information to the control point in each tunnel image according to the coordinate information of the control point corresponding to the selection instruction;
and splicing the sequenced tunnel images according to the coordinate information of the control points in the plurality of tunnel images to obtain the three-dimensional live-action model.
Further, the sorting the tunnel images of the plurality of positions includes:
and sequencing the tunnel images at the plurality of positions according to the shooting time and/or the position information of the tunnel images at the plurality of positions.
Further, the hybrid model includes: the tunnel contour of the three-dimensional live-action model and the tunnel contour of the preset tunnel model; the method further comprises the following steps:
receiving an input interception instruction of a tunnel section;
determining a target tunnel section from the mixed model according to the intercepting instruction;
calculating the area of the overbreak area on the target tunnel section according to the coordinate information of the first tunnel contour and the coordinate information of the second tunnel contour corresponding to the target tunnel section; the first tunnel contour is a tunnel contour in the three-dimensional live-action model corresponding to the target tunnel section, and the second tunnel contour is a tunnel contour in the preset tunnel model corresponding to the target tunnel section.
Further, the plurality of locations includes: a plurality of positions on a sidewall surface or a dome surface of the tunnel along a tunnel excavation direction;
the tunnel images of the plurality of locations include: a tunnel image of a plurality of stations, the tunnel image of each station comprising: shooting a plurality of tunnel images at each observation station according to a plurality of preset shooting angles;
the plurality of stations includes: the measuring stations are arranged at a plurality of measuring positions on the bottom surface of the tunnel along the tunnel excavation direction; at least one measuring station is arranged at each measuring position.
Further, there is an overlap of 20% to 40% of the tunnel images of adjacent positions;
the size of the control point is smaller than or equal to a preset size, and the preset size is smaller than or equal to 10 square centimeters.
Further, the obtaining of the coordinate information of the plurality of control points includes:
and measuring the plurality of control points through a total station to obtain the coordinate information of the plurality of control points.
In a second aspect, an embodiment of the present invention provides a tunnel under-excavation detection device, where the device includes:
the first acquisition module is used for acquiring tunnel images at a plurality of positions in a tunnel; the plurality of positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; the tunnel is also internally provided with a plurality of control points;
the second acquisition module is used for acquiring the coordinate information of the control points;
the splicing module is used for splicing the tunnel images at the positions according to the coordinate information of the control points to obtain a three-dimensional live-action model;
the synthesis module is used for synthesizing a preset tunnel model and the three-dimensional live-action model to obtain a mixed model; the hybrid model is used for representing the detection information of the overbreak and the underexcavation of the tunnel; the preset tunnel model and the three-dimensional real scene model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points.
Further, the splicing module is specifically configured to sort the tunnel images at the multiple positions; receiving an input selection instruction at a control point on each tunnel image; according to the selection instruction, determining coordinate information of a control point to which the selection instruction is directed; giving coordinate information to the control point in each tunnel image according to the coordinate information of the control point corresponding to the selection instruction; and splicing the sequenced tunnel images according to the coordinate information of the control points in the plurality of tunnel images to obtain the three-dimensional live-action model.
Further, the splicing module is specifically configured to sort the tunnel images at the multiple positions according to the shooting time and/or the position information of the tunnel images at the multiple positions.
Further, the hybrid model includes: the tunnel contour of the three-dimensional live-action model and the tunnel contour of the preset tunnel model; the device further comprises:
the receiving module is used for receiving an input interception instruction of the tunnel section;
the determining module is used for determining a target tunnel section from the mixed model according to the intercepting instruction;
the calculation module is used for calculating the area of the overbreak area on the target tunnel section according to the coordinate information of the first tunnel contour and the coordinate information of the second tunnel contour corresponding to the target tunnel section; the first tunnel contour is a tunnel contour in the three-dimensional live-action model corresponding to the target tunnel section, and the second tunnel contour is a tunnel contour in the preset tunnel model corresponding to the target tunnel section.
Further, the plurality of locations includes: a plurality of positions on a sidewall surface or a dome surface of the tunnel along a tunnel excavation direction;
the tunnel images of the plurality of locations include: a tunnel image of a plurality of stations, the tunnel image of each station comprising: shooting a plurality of tunnel images at each observation station according to a plurality of preset shooting angles;
the plurality of stations includes: the measuring stations are arranged at a plurality of measuring positions on the bottom surface of the tunnel along the tunnel excavation direction; at least one measuring station is arranged at each measuring position.
Further, there is an overlap of 20% to 40% of the tunnel images of adjacent positions;
the size of the control point is smaller than or equal to a preset size, and the preset size is smaller than or equal to 10 square centimeters.
Further, the second obtaining module is further specifically configured to measure the plurality of control points through a total station to obtain coordinate information of the plurality of control points.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a memory in which a computer program is stored, the computer program being executable on the processor, the processor implementing the steps of the method according to the first aspect when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to the first aspect.
The invention has the beneficial effects that: the embodiment of the invention provides a tunnel under-excavation detection method and device, electronic equipment and a storage medium, wherein tunnel images of a plurality of positions in a tunnel are acquired; the multiple positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: the method comprises the steps of obtaining coordinate information of a plurality of control points, splicing tunnel images at a plurality of positions according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model, synthesizing a preset tunnel model and the three-dimensional live-action model to obtain a mixed model, wherein the mixed model is used for representing detection information of the overbreak of the tunnel, the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the plurality of control points. By constructing the three-dimensional live-action model and obtaining the hybrid model representing the tunnel overbreak and underbreak information according to the three-dimensional live-action model, unnecessary time and manpower resource waste is avoided, and the tunnel overbreak and underbreak detection is more visual and convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic flow chart of a tunnel under-run detection method according to an embodiment of the present invention;
FIG. 2 is a top view of a station position within a tunnel according to embodiments of the present invention;
FIG. 3 is a schematic diagram of a tunnel and a station location according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a tunnel under-run detection method according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a tunnel under-run detection method according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a tunnel cross-section according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an apparatus for detecting a tunnel under run detection structure according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an apparatus for detecting a tunnel under run detection structure according to an embodiment of the present invention;
fig. 9 is a schematic view of a device for detecting a tunnel under-run and over-run structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Fig. 1 is a schematic flow chart of a tunnel under-run detection method according to an embodiment of the present invention. In the embodiment of the present invention, the tunnel under-run detection may be performed by a terminal device, and the terminal device may be any device having a data processing function, such as a computer device and a notebook computer, which is not limited in the embodiment of the present invention. As shown in fig. 1, the method includes:
s101, tunnel images of a plurality of positions in a tunnel are obtained.
Wherein, the position on the wall can be for the tunnel interior wall in a plurality of positions, and the position on the wall can include limit wall, palm face and hunch top surface in the tunnel, and the tunnel image of every position includes at least: the image of the area where one control point is located, wherein the tunnel images at adjacent positions are overlapped, and a plurality of control points are arranged in the tunnel.
In a possible implementation manner, for a tunnel to be detected after excavation, a plurality of measuring positions are arranged on the bottom surface of the tunnel along the tunnel excavation direction, at least one measuring station is arranged at each measuring position, and the image acquisition equipment can shoot the tunnel at each measuring station to obtain tunnel images at a plurality of positions in the tunnel.
The terminal device executing the tunnel under-run detection method can receive the tunnel images at the multiple positions transmitted by the image acquisition device in a wired or wireless mode, and can also obtain the tunnel images at the multiple positions through a memory chip of the image acquisition device. The wired mode may be, for example, a Universal Serial Bus (USB) transmission mode, or a transmission mode of other types of interfaces. The Wireless mode may be any type of Wireless transmission mode, such as Wireless-Fidelity (Wireless-Fidelity), bluetooth, infrared, or mobile communication network. The image acquisition device may be: cameras, and the like having an image capturing function.
It should be noted that the tunnel images at multiple positions may include: and (3) all the live-action information in the excavated tunnel, namely, no area which is not shot is stored for the inner side wall surface and/or the vault surface of the excavated tunnel.
In addition, a plurality of measuring positions are arranged, at least one measuring station is arranged at each measuring position, and images of the tunnel are shot at each measuring station according to a plurality of preset angles, so that the images of a plurality of positions on the inner wall surface and/or the arch top surface of the tunnel can be comprehensively collected.
In the images of the plurality of positions, the tunnel image of each position is a tunnel live-action image of each position, and may at least include: the images of the area where one control point is located are overlapped with the tunnel images at the adjacent positions, so that the images can be spliced conveniently to obtain the three-dimensional live-action model.
And S102, acquiring coordinate information of a plurality of control points.
The coordinate information of each control point is used for representing the position of each control point on a tunnel wall surface, and the tunnel wall surface can be a side wall surface or a tunnel face of a tunnel. The terminal can acquire tunnel images at a plurality of positions in a tunnel and then acquire coordinate information of a plurality of control points; tunnel images of the multiple positions and coordinate information of the multiple control points can be acquired simultaneously; and the coordinate information of the control points can be acquired first, and then the tunnel images at the positions can be acquired.
In a possible implementation manner, a plurality of control points may be arranged on the tunnel face and the side wall, and coordinate information of each control point is acquired by the positioning device according to a preset coordinate system, so as to obtain coordinate information of the plurality of control points. The terminal may transmit the files of the plurality of control points from the positioning device in a wired or wireless manner, where the files of the plurality of control points may include coordinate information of the plurality of control points, and may also obtain the coordinate information of the plurality of control points through a memory chip of the positioning device. The positioning equipment can be equipment with a positioning function, such as a total station instrument.
Of course, in the embodiment of the present invention, other coordinate information of each control point may be acquired by other coordinate acquisition devices, which is not limited in the embodiment of the present invention.
And S103, splicing the tunnel images at the plurality of positions according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model.
After acquiring the tunnel images and the coordinate information of the multiple positions, the terminal may splice the tunnel images of the multiple positions according to the coordinate information of the control point to obtain the three-dimensional live-action model.
In the embodiment of the invention, the terminal can sequence the tunnel pictures at the plurality of positions and splice the sequenced tunnel pictures according to the coordinate information of the control point to obtain the three-dimensional live-action model.
And S104, synthesizing the preset tunnel model and the three-dimensional real scene model to obtain a mixed model.
The hybrid model is used for representing the detection information of the overbreak and the underexcavation of the tunnel, the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is the coordinate system corresponding to the coordinate information of the control points.
In a possible implementation manner, the preset tunnel model, the three-dimensional real-scene model and the coordinate information of the control point are in the same coordinate system, and the terminal may mix the preset tunnel model and the three-dimensional real-scene model based on the coordinate system of the preset tunnel model and the three-dimensional real-scene model to obtain a mixed model, and display the mixed model to the user.
It should be noted that the terminal can respond to the sliding operation of the user, and display the mixed models at different angles to the user, so that the user can observe different positions of the tunnel by using the mixed models at different angles, and obtain the information of the overbreak and the underexcavation at different positions in the tunnel.
For example, the coordinate System corresponding to the coordinate information of the control points, the coordinate System of the preset tunnel model and the coordinate System of the three-dimensional real scene model may be a global positioning System (World Geodetic System-1984, WGS84) coordinate System, which may also be referred to as a geocentric coordinate System, that is, the origin of the coordinate System is the centroid of the earth.
The embodiment of the invention provides a tunnel under-excavation detection method, which comprises the steps of obtaining tunnel images at a plurality of positions in a tunnel; the multiple positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; the tunnel is also internally provided with a plurality of control points, coordinate information of the control points is obtained, tunnel images at a plurality of positions are spliced according to the coordinate information of the control points to obtain a three-dimensional live-action model, a preset tunnel model and the three-dimensional live-action model are synthesized to obtain a mixed model, the mixed model is used for representing detection information of the overbreak of the tunnel, the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points. By constructing the three-dimensional live-action model and obtaining the hybrid model representing the tunnel overbreak and underbreak information according to the three-dimensional live-action model, unnecessary time and manpower resource waste is avoided, and the tunnel overbreak and underbreak detection is more visual and convenient.
Further, the plurality of locations includes: and a plurality of positions on the side wall surface or the arch crown surface of the tunnel along the tunnel excavation direction. The tunnel images of the plurality of locations include: a tunnel image of a plurality of stations, the tunnel image of each station comprising: and shooting a plurality of tunnel images at each observation station according to a plurality of preset shooting angles. The plurality of stations includes: the measuring stations are arranged at a plurality of measuring positions on the bottom surface of the tunnel along the tunnel excavation direction; at least one measuring station is arranged at each measuring position.
Wherein, the focal length of the image acquisition device is invariable when the image acquisition device takes a picture at each station, and the focal length of the image acquisition device can be selected to be any value between 24 and 50 mm, such as 24 mm.
In addition, when the image acquisition equipment shoots and shoots at each survey station, the image acquisition equipment can shoot a side wall surface or an arch crown surface within 180 degrees of the position of the survey station. For example, the number of tunnel images photographed at one station may be 30, and the number of tunnel images at a plurality of positions may be 300 for a tunnel having a length of 3 m in the excavation direction.
For example, fig. 2 is a top view of a station position in a tunnel according to an embodiment of the present invention, as shown in fig. 2, including a tunnel 10, a first measuring position 11, a second measuring position 12, a third measuring position 13, and a plurality of stations 14, where the direction of the arrow in fig. 2 is an excavation direction, and a direction perpendicular to the excavation direction may be a width direction of the tunnel.
For a tunnel with a tunnel width of 1400 cm, a distance between the first measurement position 11 and the second measurement position 12 may be 300 cm, and a distance between the second measurement position 12 and the third measurement position 13 may be 200 cm, and of course, the distance between two adjacent measurement positions may also be set according to actual requirements, which is not specifically limited in the embodiment of the present invention.
In addition, the distance between two adjacent stations may be 300 cm for the same measurement position.
Fig. 3 is a schematic structural diagram of a tunnel and a station location according to an embodiment of the present invention, as shown in fig. 3, the tunnel includes a tunnel bottom surface 22 and a tunnel face 20, an image capturing device 21 is disposed on the tunnel bottom surface 22, and a plurality of control points 23 are disposed on the tunnel bottom surface 20. The image acquisition device 21 is arranged at a survey station on the tunnel floor 22, and the shooting direction of the image acquisition device 21 is perpendicular to the plane of the tunnel face 20. Of course, the control points 23 may also be disposed on the wall surface of the tunnel, and fig. 3 is only an example, and the present application is not limited thereto.
It should be noted that, when light in the tunnel is too dark, supplementary lighting may be performed by using auxiliary lighting equipment, and the auxiliary lighting equipment may be a light-emitting diode (LED) supplementary lighting lamp. The adjustable range of the color temperature of the auxiliary lighting device can be 2500 kelvin to 6000 kelvin, and the illuminance of the auxiliary lighting device is more than or equal to 600 lumens.
Further, there is an overlap of 20% to 40% between the tunnel images in adjacent positions, and the size of the control point is smaller than or equal to a preset size, which is smaller than or equal to 10 square centimeters, such as a size of 3 centimeters by 3 centimeters.
It should be noted that 20% to 40% of tunnel images at adjacent positions are overlapped, so that the tunnel images can be conveniently spliced to form a three-dimensional live-action model, the splicing amount can be reduced, and the splicing efficiency can be improved under the condition of ensuring the accuracy of the spliced three-dimensional live-action model.
In the method, the size of the control point is less than or equal to 3 cm by 3 cm, the problem that the tunnel over-under excavation information included in the tunnel image acquired by the image acquisition equipment is inaccurate due to the fact that the size of the control point is too large can be solved, and the problem that the image splicing is inconvenient due to the fact that the size of the control point is too small can also be avoided.
Further, acquiring coordinate information of a plurality of control points may include: and measuring the plurality of control points through the total station to obtain the coordinate information of the plurality of control points.
Wherein, a plurality of control points are positioned on the tunnel face and the side wall face in the tunnel.
In the embodiment of the invention, a plurality of control points can be arranged on the tunnel face and the side wall face in the tunnel in a paint spraying mode, and the coordinate information of each control point is acquired by adopting a WGS84 coordinate system through positioning equipment to obtain the coordinate information of the control points.
For example, for a tunnel with a length of 3 meters in the excavation direction, the number of control points may be 10, and the height of the control points from the bottom surface of the tunnel may be 1.5 meters.
The control points can be patterns with preset sizes on the palm surface and the side wall surface, and the patterns can be any one of numerical patterns, letter patterns, symbol patterns and the like. In the case of a digital pattern, the control points may be a plurality of digital patterns that are sequentially ordered.
Fig. 4 is a schematic flowchart of a tunnel overbreak and underexcavation detection method provided in the embodiment of the present invention, and as shown in fig. 4, the splicing of tunnel images at multiple positions according to coordinate information of multiple control points to obtain a three-dimensional live-action model may include:
s201, sorting the tunnel images at the plurality of positions.
In the embodiment of the invention, the terminal can sequence the tunnel images at the plurality of positions to obtain the sequenced tunnel images, so that the terminal can obtain the three-dimensional live-action model according to the sequenced tunnel images in the subsequent steps.
Optionally, the tunnel images at the multiple positions are sorted according to the shooting time and/or the position information of the tunnel images at the multiple positions.
The tunnel images at the multiple positions can have corresponding shooting time information, and after the tunnel images at the multiple positions in the tunnel are acquired, the terminal can sort the tunnel images at the multiple positions according to the corresponding shooting time.
In addition, the terminal can also identify the content of each acquired tunnel image according to the measurement position of the tunnel image, so that the tunnel images at multiple positions are sequenced. Of course, other manners of sorting may also be adopted, which are only examples and are not described herein again.
According to the method, the tunnel images at multiple positions are sequenced by adopting the shooting time and/or the position information of the tunnel images, so that the three-dimensional live-action model obtained by splicing the sequenced tunnel images is more accurate, and the detection accuracy of the overbreak is effectively guaranteed.
And S202, receiving an input selection instruction at a control point on each tunnel image.
In a possible implementation manner, the terminal may present a tunnel image to a user, the tunnel image may include an image of an area where the control point is located, the user may input a selection instruction of the control point for the control point on the tunnel image, and the terminal may receive the selection instruction input by the user.
And S203, according to the selection command, determining the coordinate information of the control point corresponding to the selection command.
After the terminal receives the input selection instruction at the control point on each tunnel image, the terminal may determine, according to the selection instruction, coordinate information of the control point to which the selection instruction is directed from the coordinate information of the plurality of control points.
It should be noted that, for a control point in one tunnel image, the terminal may present the numbers of multiple control points to the user, where each number of a control point has corresponding coordinate information, and the terminal may determine, according to a number selection instruction of a control point input by the user, the coordinate information of the control point to which the selection instruction is directed.
And S204, according to the coordinate information of the control point corresponding to the selection command, giving the coordinate information to the control point in each tunnel image.
In the embodiment of the present invention, after the terminal determines, according to the selection instruction, the coordinate information of the control point to which the selection instruction is directed, the terminal may assign the coordinate information to the corresponding control point in each tunnel image.
For example, for a control point in a tunnel image, the numbers A, B, C, D, E and F of a plurality of control points presented to the user by the terminal, the number B of the control point is determined according to a selection instruction input by the user, the coordinate information corresponding to the control point number B is (X1, Y1, Z1), and the terminal may assign (X1, Y1, Z1) as the coordinate information to the control point in the tunnel image.
And S205, splicing the sequenced tunnel images according to the coordinate information of the control points in the plurality of tunnel images to obtain the three-dimensional live-action model.
In a possible implementation manner, the terminal may adopt an SFM (structure from motion), and splice the sequenced tunnel images according to a geometric constraint relationship in the multiple tunnel images and coordinate information of control points in the multiple tunnel images, so as to obtain a three-dimensional live-action model. The geometric constraint relationship among the plurality of tunnel images may include: a positional constraint relationship in the plurality of tunnel images.
Fig. 5 is a schematic flow chart of a tunnel under-run detection method according to an embodiment of the present invention, and as shown in fig. 5, the method may further include:
s301, receiving an input interception command of the tunnel section.
Wherein, the intercepting instruction is used for indicating the intercepting of the target tunnel section.
And S302, determining the section of the target tunnel from the mixed model according to the intercepting instruction.
In the embodiment of the invention, the terminal can display the mixed model to the user, the user can input the intercepting instruction through the mixed model according to the actual requirement, and correspondingly, the terminal can receive the input intercepting instruction of the tunnel section and intercept the mixed model according to the intercepting position information in the intercepting instruction to obtain the target tunnel section. After the target tunnel cross-section is determined, the target tunnel cross-section may also be displayed. The position relation between the three-dimensional real-scene model outline and the preset tunnel model outline is displayed on the target tunnel section.
And S303, calculating the area of the overbreak and overbreak area on the section of the target tunnel according to the coordinate information of the first tunnel contour and the coordinate information of the second tunnel contour corresponding to the section of the target tunnel.
The first tunnel contour is a tunnel contour in a three-dimensional live-action model corresponding to the target tunnel section, and the second tunnel contour is a tunnel contour in a preset tunnel model corresponding to the target tunnel section.
It should be noted that, the user may determine the information of the overbreak and underbreak of the tunnel according to the position relationship between the three-dimensional real-scene model outline and the preset tunnel model outline on the target tunnel section. After the area of the overbreak and underbreak position on the section of the target tunnel is calculated, overbreak and underbreak information of the tunnel, such as the area and the size information of an overbreak and underbreak area, can be displayed on the displayed section of the target tunnel.
For example, fig. 6 is a schematic diagram of a tunnel cross section in a hybrid model according to an embodiment of the present invention, and as shown in fig. 6, the tunnel cross section in the hybrid model is displayed with an overexcavation region 30, an underexcavated region 31, a second contour line 32, and a first contour line 33.
The plane enclosed by the second contour line 32 and the first contour line 33 is the overexcavation area 30 and/or the undermining area 31, and the terminal can show the target tunnel section to the user, so that the user can determine the undermining information of the tunnel according to the target tunnel section.
In the embodiment of the invention, the three-dimensional live-action model and the preset tunnel model in the mixed model both have corresponding coordinates, so that the section of the target tunnel determined from the mixed model also has corresponding three-dimensional coordinates x, y and z, wherein x is an abscissa, y is an ordinate, and z is a height coordinate.
In a possible implementation manner, the terminal may determine the overexcavation region and/or the undermined region according to the position relationship between the first tunnel contour and the second tunnel contour, calculate the area of the overexcavation region and/or the undermined region according to the coordinate information of each vertex in the overexcavation region and/or the undermined region, and show the area size of the overexcavation region and/or the undermined region to a user.
In another possible implementation, the terminal may calculate an area of the overexcavation region and/or the undermining region at each position in the mixed model to obtain the area of the overexcavation region and/or the undermining region at each position, divide the area into a plurality of color intervals, assign corresponding colors according to the area values of the overexcavation region and/or the undermining region at each position to obtain a color cloud picture, and the terminal may display the color cloud picture to a user. Different area values may correspond to different colors. Alternatively, different area ranges may correspond to different colors.
In summary, the embodiment of the present invention provides a method for detecting over-excavation and under-excavation of a tunnel, which obtains tunnel images at multiple positions in the tunnel; the multiple positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; the tunnel is also internally provided with a plurality of control points, coordinate information of the control points is obtained, tunnel images at a plurality of positions are spliced according to the coordinate information of the control points to obtain a three-dimensional live-action model, a preset tunnel model and the three-dimensional live-action model are synthesized to obtain a mixed model, the mixed model is used for representing detection information of the overbreak of the tunnel, the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points. By constructing the three-dimensional live-action model and obtaining the hybrid model representing the tunnel overbreak and underbreak information according to the three-dimensional live-action model, unnecessary time and manpower resource waste is avoided, and the tunnel overbreak and underbreak detection is more visual and convenient.
Fig. 7 is a schematic view of an apparatus for detecting a tunnel under-run and over-run structure according to an embodiment of the present invention, as shown in fig. 7, the apparatus includes:
a first obtaining module 401, configured to obtain tunnel images at multiple positions in a tunnel; the multiple positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; a plurality of control points are also arranged in the tunnel;
a second obtaining module 402, configured to obtain coordinate information of a plurality of control points;
the splicing module 403 is configured to splice the tunnel images at multiple positions according to the coordinate information of the multiple control points to obtain a three-dimensional live-action model;
a synthesis module 404, configured to synthesize a preset tunnel model and a three-dimensional live-action model to obtain a hybrid model; the hybrid model is used for representing the detection information of the over-under excavation of the tunnel; the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points.
Optionally, the splicing module 403 is specifically configured to sort the tunnel images at multiple positions; receiving an input selection instruction at a control point on each tunnel image; according to the selection instruction, determining coordinate information of a control point corresponding to the selection instruction; giving coordinate information to the control point in each tunnel image according to the coordinate information of the control point corresponding to the selection instruction; and splicing the sequenced tunnel images according to the coordinate information of the control points in the plurality of tunnel images to obtain the three-dimensional live-action model.
Optionally, the stitching module 403 is further specifically configured to sort the tunnel images at the multiple positions according to the shooting time and/or the position information of the tunnel images at the multiple positions.
Optionally, the hybrid model includes: as shown in fig. 8, the apparatus further includes:
a receiving module 405, configured to receive an input interception instruction of a tunnel cross section;
a determining module 406, configured to determine a target tunnel cross section from the hybrid model according to the intercepting instruction;
the calculating module 407 is configured to calculate an area of an overbreak area on the target tunnel section according to the coordinate information of the first tunnel profile and the coordinate information of the second tunnel profile corresponding to the target tunnel section; the first tunnel contour is a tunnel contour in a three-dimensional live-action model corresponding to the target tunnel section, and the second tunnel contour is a tunnel contour in a preset tunnel model corresponding to the target tunnel section.
Optionally, the plurality of locations comprises: a plurality of positions on a side wall surface or a vault surface of the tunnel along the tunnel excavation direction;
the tunnel images of the plurality of locations include: a tunnel image of a plurality of stations, the tunnel image of each station comprising: shooting a plurality of tunnel images at each observation station according to a plurality of preset shooting angles;
the plurality of stations includes: the measuring stations are arranged at a plurality of measuring positions on the bottom surface of the tunnel along the tunnel excavation direction; at least one measuring station is arranged at each measuring position.
Optionally, there is an overlap of 20% to 40% between the tunnel images of adjacent positions;
the size of the control point is smaller than or equal to a preset size, and the preset size is smaller than or equal to 10 square centimeters.
Optionally, the second obtaining module 402 is further specifically configured to measure the multiple control points through the total station to obtain coordinate information of the multiple control points.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 9 is a schematic diagram of an apparatus for detecting a tunnel under-run and over-run structure according to an embodiment of the present invention, where the apparatus may be integrated in a terminal device or a chip of the terminal device, and the terminal may be a computing device with a data processing function.
The device includes: a processor 601, a memory 602.
The memory 602 is used for storing programs, and the processor 601 calls the programs stored in the memory 602 to execute the above-mentioned method embodiments. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the invention also provides a program product, for example a computer-readable storage medium, comprising a program which, when being executed by a processor, is adapted to carry out the above-mentioned method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
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 units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods 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 other various media capable of storing program codes.
Claims (8)
1. A tunnel overbreak and underexcavation detection method is characterized by comprising the following steps:
acquiring tunnel images of a plurality of positions in a tunnel; the plurality of positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; the tunnel is also internally provided with a plurality of control points;
acquiring coordinate information of the plurality of control points;
splicing the tunnel images at the plurality of positions according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model;
synthesizing a preset tunnel model and the three-dimensional live-action model to obtain a mixed model; the hybrid model is used for representing the detection information of the overbreak and the underexcavation of the tunnel; the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points;
the step of splicing the tunnel images at the plurality of positions according to the coordinate information of the plurality of control points to obtain a three-dimensional live-action model comprises the following steps:
sequencing the tunnel images of the plurality of positions;
receiving an input selection instruction at a control point on each tunnel image;
according to the selection instruction, determining coordinate information of a control point to which the selection instruction is directed;
giving coordinate information to the control point in each tunnel image according to the coordinate information of the control point corresponding to the selection instruction;
and splicing the sequenced tunnel images according to the coordinate information of the control points in the plurality of tunnel images to obtain the three-dimensional live-action model.
2. The method of claim 1, wherein the ordering the tunnel images of the plurality of locations comprises:
and sequencing the tunnel images at the plurality of positions according to the shooting time and/or the position information of the tunnel images at the plurality of positions.
3. The method of claim 1, wherein the hybrid model comprises: the tunnel contour of the three-dimensional live-action model and the tunnel contour of the preset tunnel model; the method further comprises the following steps:
receiving an input interception instruction of a tunnel section;
determining a target tunnel section from the mixed model according to the intercepting instruction;
calculating the area of the overbreak area on the target tunnel section according to the coordinate information of the first tunnel contour and the coordinate information of the second tunnel contour corresponding to the target tunnel section; the first tunnel contour is a tunnel contour in the three-dimensional live-action model corresponding to the target tunnel section, and the second tunnel contour is a tunnel contour in the preset tunnel model corresponding to the target tunnel section.
4. The method of any of claims 1-3, wherein the plurality of locations comprises: a plurality of positions on a sidewall surface or a dome surface of the tunnel along a tunnel excavation direction;
the tunnel images of the plurality of locations include: a tunnel image of a plurality of stations, the tunnel image of each station comprising: shooting a plurality of tunnel images at each observation station according to a plurality of preset shooting angles;
the plurality of stations includes: the measuring stations are arranged at a plurality of measuring positions on the bottom surface of the tunnel along the tunnel excavation direction; at least one measuring station is arranged at each measuring position.
5. A method according to any of claims 1-3, wherein there is an overlap of 20% to 40% of the tunnel images of adjacent locations;
the size of the control point is smaller than or equal to a preset size, and the preset size is smaller than or equal to 10 square centimeters.
6. A tunnel under-run detection device, characterized in that the device includes:
the first acquisition module is used for acquiring tunnel images at a plurality of positions in a tunnel; the plurality of positions are positions on the inner wall surface of the tunnel, and the tunnel image at each position at least comprises: an image of an area where the control point is located, wherein the tunnel images at adjacent positions are overlapped; the tunnel is also internally provided with a plurality of control points;
the second acquisition module is used for acquiring the coordinate information of the control points;
the splicing module is used for splicing the tunnel images at the positions according to the coordinate information of the control points to obtain a three-dimensional live-action model;
the synthesis module is used for synthesizing a preset tunnel model and the three-dimensional live-action model to obtain a mixed model; the hybrid model is used for representing the detection information of the overbreak and the underexcavation of the tunnel; the preset tunnel model and the three-dimensional live-action model have the same coordinate system, and the coordinate system is a coordinate system corresponding to the coordinate information of the control points;
the splicing module is specifically used for sequencing the tunnel images at the multiple positions; receiving an input selection instruction at a control point on each tunnel image; according to the selection instruction, determining coordinate information of a control point to which the selection instruction is directed; giving coordinate information to the control point in each tunnel image according to the coordinate information of the control point corresponding to the selection instruction; and splicing the sequenced tunnel images according to the coordinate information of the control points in the plurality of tunnel images to obtain the three-dimensional live-action model.
7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor implements the steps of the method of any of claims 1 to 5 when executing the computer program.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
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| CN109470205A (en) * | 2018-12-18 | 2019-03-15 | 上海华测导航技术股份有限公司 | It is a kind of for determining the measurement method of Tunnel Overbreak & Underbreak |
| CN109598714A (en) * | 2018-12-03 | 2019-04-09 | 中南大学 | A kind of Tunnel Overbreak & Underbreak detection method based on 3-dimensional reconstruction and grid surface |
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| CN102620672B (en) * | 2011-12-01 | 2015-01-14 | 中国人民解放军63653部队 | Application of image mosaic technology in tunnel surrounding rock deformation noncontact measurement |
| JP2018154969A (en) * | 2017-03-15 | 2018-10-04 | 大成建設株式会社 | Method for estimating spring water pressure of natural ground |
| CN109470207A (en) * | 2018-12-18 | 2019-03-15 | 上海华测导航技术股份有限公司 | A kind of complete detection method for tunnel |
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| CN109598714A (en) * | 2018-12-03 | 2019-04-09 | 中南大学 | A kind of Tunnel Overbreak & Underbreak detection method based on 3-dimensional reconstruction and grid surface |
| CN109470205A (en) * | 2018-12-18 | 2019-03-15 | 上海华测导航技术股份有限公司 | It is a kind of for determining the measurement method of Tunnel Overbreak & Underbreak |
| CN109900208A (en) * | 2019-03-28 | 2019-06-18 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of Tunneling by mining method excavation and first branch quality determining method |
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Address after: Building 2, No.2, Zidong Road, Maqun street, Qixia District, Nanjing City, Jiangsu Province, 210000 Patentee after: Jiangsu Dongjiao Intelligent Control Technology Group Co.,Ltd. Address before: Building 2, No.2, Zidong Road, Maqun street, Qixia District, Nanjing City, Jiangsu Province, 210000 Patentee before: JIANGSU EASTTRANS ENGINEERING TESTING Co.,Ltd. |