CN114608525A - Tunnel settlement monitoring method and device based on visual transmission and storage medium - Google Patents
Tunnel settlement monitoring method and device based on visual transmission and storage medium Download PDFInfo
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- CN114608525A CN114608525A CN202210158851.3A CN202210158851A CN114608525A CN 114608525 A CN114608525 A CN 114608525A CN 202210158851 A CN202210158851 A CN 202210158851A CN 114608525 A CN114608525 A CN 114608525A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
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Abstract
The invention relates to the technical field of civil engineering, in particular to a tunnel settlement monitoring method and device based on visual transmission and a storage medium. According to the method, the image corresponding to the target monitoring point on the structure body to be monitored is collected, the elevation of the target monitoring point is obtained through analysis of the image, and whether the structure body to be monitored is settled at the target monitoring point is judged according to the elevation. The invention arranges the image acquisition devices from a ground reference point, arranges a plurality of image acquisition devices along the tunnel direction, and monitors the relative elevation change of the next image acquisition device by using the previous image acquisition device so as to realize visual transmission. The invention acquires the image based on the visual transmission principle formed by the image acquisition device to obtain the elevation of each target monitoring point without making higher requirements on the size of the structure space, so that the monitoring method can obtain the settlement condition of any position in the structure space, thereby realizing the technical effect of accurately monitoring the settlement of the structure.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a tunnel settlement monitoring method and device based on visual transmission and a storage medium.
Background
The tunnel (structure) is an important structure of a high-speed railway, a cross-sea traffic engineering and an urban rail traffic engineering. The tunnel is influenced by soil pressure, water pressure and external load during construction, the tunnel structure of the tunnel is likely to have uneven settlement, the elevations of different tunnel sections deviate from the designed linear shape, the problems of foundation pit collapse, tunnel slab staggering, water leakage and the like are caused, the normal use of the tunnel is influenced, and the tunnel collapse failure is likely to be caused in serious cases. Therefore, settlement observation needs to be carried out on the tunnel engineering, uneven settlement of the tunnel engineering is found in time, and safety construction of the tunnel engineering is supported.
Settlement observation of traditional civil engineering structures is generally carried out according to leveling specifications, a leveling route is designed, a leveling instrument, a leveling rod and the like are adopted to carry out station-by-station height difference measurement, and the distance between a forward view and a rear view is controlled, so that millimeter-level high-precision leveling is realized. Leveling needs to keep the visibility between the measuring points, and erects a level gauge and a leveling rod, and because the erection of the level gauge and the leveling rod has high requirements on space, the labor intensity of workers is high, and the operation time is long. And the construction space of the high-speed rail tunnel and the rail transit tunnel is narrow, so that the environment is complex. Therefore, it is difficult to install a level gauge and a leveling rod in a narrow structure to be monitored, and it is difficult to monitor the settlement at each position in the narrow structure.
In summary, it is difficult to monitor the settlement at various positions inside the structure in the prior art.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a tunnel settlement monitoring method and device based on visual transmission and a storage medium, and relates to the technical field of civil engineering, in particular to the tunnel settlement monitoring method and device based on visual transmission, and the problem that settlement conditions at all positions in a structure body are difficult to monitor in the prior art is solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a tunnel settlement monitoring method based on visual transmission, including:
acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure body to be monitored, and the structure body to be monitored is a tunnel;
according to the target image, obtaining elevation data corresponding to the target monitoring point through visual transmission, wherein the elevation data are used for reflecting the height of the target monitoring point in the settlement direction;
and obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data.
In one implementation, the obtaining a target image corresponding to a target monitoring point, where the target monitoring point is located on a structure to be monitored, includes:
according to the target monitoring points, obtaining each target monitoring target in the target monitoring points, wherein the target monitoring targets are sequentially arranged along the moving direction of the structure body to be monitored;
and acquiring each target image in the target image through an image acquisition device, wherein each target image corresponds to each target monitoring target.
In one implementation manner, each of the image capturing devices is sequentially arranged along the moving direction of the structure to be monitored, the adjacent image capturing devices are respectively marked as a previous image capturing device and a next image capturing device, the previous image capturing device and the next image capturing device form visual transmission, the adjacent target monitoring targets are respectively marked as a previous target monitoring target and a next target monitoring target, the previous target monitoring target and the previous image capturing device are arranged in a same position, and the next target monitoring target and the next image capturing device are arranged in a same position, the acquiring, by an image acquisition device, each target image in the target images, each target image corresponding to each target monitoring target, includes:
and acquiring a target image corresponding to the next target monitoring target through the former image acquisition device.
In one implementation manner, the obtaining, according to the target image, elevation data corresponding to the target monitoring point, where the elevation data is used to reflect the height of the target monitoring point in the settlement direction includes:
acquiring the distance between the previous image acquisition device and the next target monitoring target, wherein the distance is the length in the connecting line direction of the image acquisition device and the target monitoring target;
acquiring a focal length corresponding to the image acquisition device;
acquiring the vertical coordinate of the next target monitoring target in the coordinate system corresponding to the previous image acquisition device;
obtaining a relative elevation between the next target monitoring target and the previous image acquisition device according to the distance, the focal length and the ordinate, wherein the relative elevation is used for reflecting the height difference of the next target monitoring target and the previous image acquisition device in the sedimentation direction;
and obtaining the elevation data corresponding to the next target monitoring target in the target monitoring points according to the relative elevation between the next target monitoring target and the previous image acquisition device.
In one implementation, the obtaining, according to the distance, the focal length, and the ordinate, a relative elevation between the next target monitoring target and the previous image capturing device, where the relative elevation is used to reflect a height difference between the next target monitoring target and the previous image capturing device in a sinking direction, includes:
dividing the ordinate by the focal length to obtain an operation result;
and multiplying the calculation result by the distance to obtain the relative elevation.
In one implementation, the obtaining the elevation data corresponding to the next target monitoring target at the target monitoring point according to the relative elevation between the next target monitoring target and the previous image acquisition device includes:
calculating the relative elevation between the previous image acquisition device and a base point, wherein the elevation of the base point is known, the base point is positioned outside the structural body to be monitored, and the base point, the previous image acquisition device and the next target monitoring target are sequentially arranged;
and obtaining the elevation data corresponding to the next target monitoring target according to the relative elevation between the former image acquisition device and the base point and the elevation of the base point.
In one implementation mode, calculating an elevation between a previous image acquisition device and a reference point, and recording the elevation as a first elevation, wherein the previous image acquisition device, the next image acquisition device and the reference point are sequentially arranged;
calculating the elevation between the latter image acquisition device and the reference point, and recording as a second elevation;
calculating a difference value corresponding to the first elevation and the second elevation;
calculating the absolute difference between the difference value and the elevation data corresponding to the next target monitoring target;
and when the absolute difference is larger than a set value, adjusting the elevation data corresponding to the target monitoring target according to the difference to obtain the adjusted elevation data.
In a second aspect, an embodiment of the present invention further provides a tunnel settlement monitoring device based on visual transmission, where the device includes the following components:
the image acquisition module is used for acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure body to be monitored, and the structure body to be monitored is a tunnel;
the image analysis module is used for obtaining elevation data corresponding to the target monitoring point through visual transmission according to the target image, and the elevation data is used for reflecting the height of the target monitoring point in the settlement direction;
and the monitoring module is used for obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data.
In a third aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a memory, a processor, and a tunnel settlement monitoring program based on visual transfer, where the tunnel settlement monitoring program based on visual transfer is stored in the memory and is executable on the processor, and when the processor executes the tunnel settlement monitoring program based on visual transfer, the steps of the tunnel settlement monitoring method based on visual transfer are implemented.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a tunnel settlement monitoring program based on visual transfer is stored on the computer-readable storage medium, and when the tunnel settlement monitoring program based on visual transfer is executed by a processor, the steps of the tunnel settlement monitoring method based on visual transfer are implemented.
Has the advantages that: according to the method, the image corresponding to the target monitoring point on the structure body to be monitored is collected, the elevation of the target monitoring point is obtained through analysis of the image, and whether the structure body to be monitored is settled at the target monitoring point is judged according to the elevation. Compared with the condition that the height directly acquired by a height measuring tool (a level gauge and a leveling rod) has higher requirements on the size of the space of the structure, the method acquires the height of each target monitoring point by acquiring the image without making higher requirements on the size of the space of the structure, so that the method can acquire the settlement condition of any position in the space of the structure, and further realize the technical effect of accurately monitoring the settlement of the structure.
Drawings
FIG. 1 is an overall flow diagram of the present invention;
FIG. 2 is a schematic diagram of the present invention;
fig. 3 is a schematic block diagram of an internal structure of a terminal device according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is clearly and completely described below by combining the embodiment and the attached drawings of the specification. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Researches show that the tunnel (structure) is an important structure of high-speed railways, sea-crossing traffic engineering and urban rail traffic engineering. The tunnel is influenced by soil pressure, water pressure and external load during construction, the tunnel structure of the tunnel is likely to have uneven settlement, the elevations of different tunnel sections deviate from the designed linear shape, the problems of foundation pit collapse, tunnel slab staggering, water leakage and the like are caused, the normal use of the tunnel is influenced, and the tunnel collapse failure is likely to be caused in serious cases. Therefore, settlement observation needs to be carried out on the tunnel engineering, uneven settlement of the tunnel engineering can be found in time, and safety construction of the tunnel engineering is supported. Settlement observation of traditional civil engineering structures is generally carried out according to leveling specifications, a leveling route is designed, a leveling instrument, a leveling rod and the like are adopted to carry out station-by-station height difference measurement, and the distance between a forward view and a rear view is controlled, so that millimeter-level high-precision leveling is realized. Leveling needs to keep the visibility between the measuring points, and erects a level gauge and a leveling rod, and because the erection of the level gauge and the leveling rod has high requirements on space, the labor intensity of workers is high, and the operation time is long. And the construction space of the high-speed rail tunnel and the rail transit tunnel is narrow, so that the environment is complex. Therefore, it is difficult to install a level gauge and a leveling rod in a narrow structure to be monitored, and it is difficult to monitor the settlement at each position in the narrow structure.
In order to solve the technical problems, the invention provides a method and a device for monitoring tunnel settlement based on visual transmission and a storage medium, and relates to the technical field of civil engineering, in particular to the method and the device for monitoring the tunnel settlement based on the visual transmission, and the method and the device solve the problem that settlement conditions at all positions in a structure body are difficult to monitor in the prior art. In specific implementation, a target image corresponding to a target monitoring point is obtained, and the target monitoring point is positioned on a structure body to be monitored; according to the target image, obtaining elevation data corresponding to the target monitoring point, wherein the elevation data are used for reflecting the height of the target monitoring point in the settlement direction; and obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data. The tunnel settlement monitoring method based on visual transmission can be implemented in a narrow space range of a structure body to be monitored, so that the application range of the monitoring method is enlarged.
For example, the structure to be monitored is a tunnel laid under the ground, and images of target monitoring points arranged at various positions of the tunnel are collected, wherein the target monitoring points can be small white boards. The real-time height of each target monitoring point is obtained through the analysis of the image, and whether settlement occurs at each position of the tunnel or not and the settlement amount can be obtained by comparing the real-time height with the original height of the target monitoring point.
Exemplary method
The tunnel settlement monitoring method based on visual transmission of the embodiment can be applied to terminal equipment, and the terminal equipment can be terminal products with an image shooting function, such as a camera and the like. In this embodiment, as shown in fig. 1, the tunnel settlement monitoring method based on visual transmission specifically includes the following steps:
s100, acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure body to be monitored.
The specific process of step S100 is: according to the target monitoring points, obtaining each target monitoring target in the target monitoring points, wherein the target monitoring targets are sequentially arranged along the moving direction of the structure body to be monitored; and acquiring each target image in the target image through an image acquisition device, wherein each target image corresponds to each target monitoring target.
For example, the following steps are carried out: prior to the acquisition of the object(s),the measuring cameras (image pickup devices) are first arranged at the respective positions in fig. 2. As shown in fig. 2, leveling base points b are provided at the entrance and exit positions of a tunnel (structure to be monitored), respectively1(at the entrance of the tunnel) and b2(at the tunnel exit). Base point b of level1And b2Is known and is obtained using ground precision leveling tools.
Levelling base b at the entry point1A measuring camera a is arranged at the position1From the base point b of the levelling1Toward the base point b of the level2Arranging a plurality of measuring cameras, respectively measuring camera a2Measuring camera a3Measuring camera a4,., measuring camera an. The interval of the camera is [ d ]1,d2]Meanwhile, the sight line is prolonged through a plurality of cameras, and multi-camera visual continuous observation is carried out. Wherein the number of measuring cameras is determined according to the tunnel length. As shown in fig. 2, in the measuring camera a2，a3，a4，...，anOn which measuring targets are respectively arranged, i.e. on the measuring camera a2Upper set measuring target c1At the measuring camera a3On the upper setting measuring target c2At the measuring camera anUpper set measuring target cn. Wherein the target c is measured1And a measuring camera a2In co-location arrangement, i.e. at measuring camera a2Measuring target c when the tunnel subsides1Following measurement camera a2But also for the positional relationship between the other measurement targets and the measurement camera.
When the images are acquired, the former measuring camera acquires the images of the latter measuring target, so that the elevation of the latter measuring camera relative to the former measuring camera is obtained by analyzing and calculating the images by the former measuring camera. Such as a measuring camera a located outside the tunnel1Acquisition of a measuring camera a arranged inside a tunnel2On the measurement target c1By analysis of the image, obtaining a measuring camera a2Relative measurement camera a1The height of (c).
In this embodiment, the position of the center of the target in the captured image is calculated by using the huffman transform method, and the target c is recordedi+1In the world image plane coordinate system of camera i (u)ci+1t,vci+1t). Photographs taken by measuring cameras are often bulky and difficult to transmit over a wireless network. The invention utilizes the FPGA to extract the target center at the measuring camera, transmits the position coordinates of the target center to the data processing center, does not need to transmit the target center back to the data processing center, and greatly reduces the data transmission quantity.
And S200, obtaining elevation data corresponding to the target monitoring points according to the target images, wherein the elevation data are used for reflecting the height of the target monitoring points in the settlement direction.
Step S200 specifically includes the following steps:
s201, obtaining the distance between the former image acquisition device and the latter target monitoring target, wherein the distance is the length in the connecting line direction of the image acquisition device and the target monitoring target.
And S202, acquiring a focal length corresponding to the image acquisition device.
And S203, acquiring the vertical coordinate of the next target monitoring target in the coordinate system corresponding to the previous image acquisition device.
And S204, dividing the ordinate by the focal length to obtain an operation result.
And S205, multiplying the calculation result by the distance to obtain the relative elevation.
Step S201-step S205 are to calculate the latter measuring camera a by formula (1)i+1(image pickup device) relative to the previous measuring camera aiDh toi,i+1：
vcj+1,tArranged at measuring camera a for time ti+1Target monitoring target of (last target monitoring target) on the previous measurementQuantity camera aiOrdinate in the coordinate system. The coordinate system of each measuring camera is uniform. f is the focal length of the measuring camera, Di,i+1For measuring cameras aiTo the measuring camera ai+1The target of (1) monitors the distance of the target, which is the distance along the camera shooting direction.
And S206, calculating the relative elevation between the former image acquisition device and a base point, wherein the elevation of the base point is known, the base point is positioned outside the structural body to be monitored, and the base point, the former image acquisition device and the latter target monitoring target are sequentially arranged.
And S207, obtaining the elevation data corresponding to the next target monitoring target according to the relative elevation between the former image acquisition device and the base point and the elevation of the base point.
Step S201 to step S205 are to calculate only the elevation difference between two adjacent cameras, that is, to calculate only the relative elevation difference between adjacent positions of the track, so as to know whether the settlement occurs at each position of the track. However, the actual elevation at each position is not known, and further, the settlement relative to the original elevation after the settlement cannot be judged. Therefore, step S206 and step S207 introduce known base point elevations to calculate the actual elevations at various locations of the tunnel.
For example, as shown in FIG. 2, placed at the base point b1The surveying camera a1 above calculates the elevation of the surveying camera a2 relative to the surveying camera a1 by formula (1) by taking an image of the target c1 arranged on the surveying camera a2, and since the elevation of the surveying camera a1 is known, the actual elevation of the surveying camera a2 can be calculated, and by analogy, the actual elevation of each surveying camera can be calculated, that is, the actual elevation of each surveying camera at each position of the tunnel can be calculated.
Because the measuring camera may tilt during the actual use process, the calculated actual elevation of the measuring camera cannot represent the actual elevation of the tunnel where the measuring camera is located, and therefore the calculated elevation of the measuring camera needs to be adjusted. Adjusting the elevation includes the following steps S401, S402, S403, S404, and S405:
s401, calculating the elevation between the former image acquisition device and a reference point, and recording as a first elevation, wherein the former image acquisition device, the latter image acquisition device and the reference point are sequentially arranged.
For example, as shown in fig. 2, when the elevation of the surveying camera a3 needs to be calculated by adjusting the image of the surveying target arranged on the surveying camera a3 and captured by the surveying camera a2, a reference point (reference target) which can be captured by both cameras is arranged in the capturing range of the surveying camera a2 and the surveying camera a3, and the reference target can be located behind the surveying camera a3, that is, the surveying camera a2, the surveying camera a3 and the reference target are arranged in a straight line.
And S402, calculating the elevation between the latter image acquisition device and the reference point, and recording as a second elevation.
And S403, calculating a difference value corresponding to the first elevation and the second elevation.
S404, calculating an absolute difference between the difference value and the elevation data corresponding to the next target monitoring target.
S405, when the absolute difference is larger than a set value, adjusting the elevation data corresponding to the target monitoring target according to the difference to obtain the adjusted elevation data.
The detailed procedure of step S402-step S405 is illustrated:
relative measurement camera a for respectively calculating reference targets3Elevation and relative measurement camera a2When the two relative elevations are not consistent, the measurement camera is inclined. The reference target can be relatively measured by a camera3Elevation and measurement camera a2Calculated measuring camera a3Relative measurement camera a2The average of the two relative elevations is taken as a measuring camera a3Relative measurement camera a2The actual elevation of.
The embodiment passes through each measuring camera before the operation of adjusting the elevation of each camera is carried outCalculate the base point b2When the base point b is high2And when the actual elevation is not equal to the actual elevation, performing operation of adjusting the elevation of each camera.
Steps S401 to S405 are based on the following principle to adjust the elevation:
and (I) measuring elevation calculation at a camera. From a ground level base point b1Starting from the position a, the elevation transmission is carried out along the measuring sight line to reach the position a of the measuring cameraiVia elevation transmission, then aiThe elevation at is:
and (II) calculating a closure error of the elevation measurement. Theoretically, from one ground levelling base point b1Starting from the height transmission along the measuring sight line, the elevation is transmitted to another leveling base point b2Via elevation transfer, should be equal to b2The elevation of (c) then has:
hb1+∑i∈R(b1→b2)dhi,i+1＝hb2 (3)
due to the interference of the sight line, the relative elevation acquired by the measuring camera has an error. Equation (2) is not strictly satisfied, and the elevation closure error is calculated as:
Δh＝hb1+∑i∈Rdhi,i+1-hb2 (4)
and (III) correcting the sedimentation observation result. Since the elevation closure error is not 0, it needs to be further corrected. Using three measuring cameras ai-1,ai,ai+1And (3) identifying image features of the shot images by using computer image processing such as SIFT (Scale invariant feature transform), HOG (histogram operator) and the like, and extracting a commonly observed target k. And (3) constructing a settlement checking equation of the measuring camera in the local area by utilizing the common observation target k, wherein the settlement checking equation comprises the following steps:
dhi-1,k＝dhi,i-1+dhi,i+1+dhi+1,k (5)
dhi,k＝dhi,i+1+dhi+1,k (6)
taking a plurality of common observation targets, constructing a plurality of settlement observation calibration equations (5) and (6), simultaneously establishing an equation (4), constructing an equation set, solving by adopting a least square method, and calculating the height difference dh between the two measurement cameras in real timei,i+1
S300, obtaining a settlement monitoring result of the structure to be monitored according to the elevation data.
And when the calculated elevation of each measuring camera deviates from the original elevation of the measuring camera, the tunnel is proved to be settled at the position of the measuring camera.
In summary, the invention acquires the image corresponding to the target monitoring point on the structure to be monitored, obtains the elevation of the target monitoring point through the analysis of the image, and then judges whether the structure to be monitored is settled at the target monitoring point according to the elevation. Compared with the condition that the height directly acquired by a height measuring tool (a level gauge and a leveling rod) has higher requirements on the size of the space of the structure, the method acquires the height of each target monitoring point by acquiring the image without making higher requirements on the size of the space of the structure, so that the method can acquire the settlement condition of any position in the space of the structure, and further realize the technical effect of accurately monitoring the settlement of the structure.
In addition, the invention utilizes a plurality of cameras to synchronously measure the elevation change and carries out long-distance tunnel settlement precision measurement through visual transmission. The ground high-grade leveling datum is extended to an underground tunnel, an underground tunnel settlement real-time measurement network is constructed by utilizing a plurality of cameras, other ground high-grade leveling base points are measured in parallel, the visual transmission of the ground high-grade leveling datum in the underground is realized, and an absolute elevation settlement observation value is obtained. The invention utilizes the computer vision to extract the public target in the multi-camera field of view, corrects the elevation settlement error and realizes the high-precision tunnel settlement on-line measurement.
Exemplary devices
The embodiment also provides a tunnel settlement monitoring device based on visual transmission, the device includes following component parts:
the image acquisition module is used for acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure body to be monitored, and the structure body to be monitored is a tunnel;
the image analysis module is used for obtaining elevation data corresponding to the target monitoring point through visual transmission according to the target image, and the elevation data is used for reflecting the height of the target monitoring point in the settlement direction;
and the monitoring module is used for obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data.
Based on the above embodiments, the present invention further provides a terminal device, and a schematic block diagram thereof may be as shown in fig. 3. The terminal equipment comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein the processor of the terminal device is configured to provide computing and control capabilities. The memory of the terminal equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the terminal device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a method of tunnel settlement monitoring based on visual transfer. The display screen of the terminal equipment can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the terminal equipment is arranged in the terminal equipment in advance and used for detecting the operating temperature of the internal equipment.
It will be understood by those skilled in the art that the block diagram of fig. 3 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the terminal equipment to which the solution of the present invention is applied, and a specific terminal equipment may include more or less components than those shown in the figure, or may combine some components, or have different arrangements of components.
In one embodiment, a terminal device is provided, where the terminal device includes a memory, a processor, and a tunnel settlement monitoring program based on visual transfer stored in the memory and executable on the processor, and when the processor executes the tunnel settlement monitoring program based on visual transfer, the following operation instructions are implemented:
acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure to be monitored, and the structure to be monitored is a tunnel;
according to the target image, obtaining elevation data corresponding to the target monitoring point through visual transmission, wherein the elevation data are used for reflecting the height of the target monitoring point in the sedimentation direction;
and obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, the invention discloses a tunnel settlement monitoring method, a tunnel settlement monitoring device and a storage medium based on visual transmission, wherein the method comprises the following steps: acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure body to be monitored; according to the target image, obtaining elevation data corresponding to the target monitoring point, wherein the elevation data are used for reflecting the height of the target monitoring point in the settlement direction; and obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data. According to the invention, the elevation of each target monitoring point obtained by collecting the image does not have higher requirements on the size of the structure space, so that the monitoring method can obtain the settlement condition of any position in the structure space, thereby realizing the technical effect of accurately monitoring the settlement of the structure.
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 (10)
1. A tunnel settlement monitoring method based on visual transmission is characterized by comprising the following steps:
acquiring a target image corresponding to a target monitoring point, wherein the target monitoring point is positioned on a structure body to be monitored, and the structure body to be monitored is a tunnel;
according to the target image, obtaining elevation data corresponding to the target monitoring point through visual transmission, wherein the elevation data are used for reflecting the height of the target monitoring point in the settlement direction;
and obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data.
2. The tunnel settlement monitoring method based on visual transmission according to claim 1, wherein the acquiring of the target image corresponding to the target monitoring point, the target monitoring point being located on a structure to be monitored, the structure to be monitored being a tunnel, comprises:
according to the target monitoring points, obtaining each target monitoring target in the target monitoring points, wherein the target monitoring targets are sequentially arranged along the moving direction of the structure body to be monitored;
and acquiring each target image in the target image through an image acquisition device, wherein each target image corresponds to each target monitoring target.
3. The tunnel settlement monitoring method based on visual transmission as claimed in claim 2, wherein each of the image capturing devices is sequentially arranged along the direction of the structure to be monitored, the adjacent image capturing devices are respectively marked as a previous image capturing device and a next image capturing device, the previous image capturing device and the next image capturing device constitute the visual transmission, the adjacent target monitoring targets are respectively marked as a previous target monitoring target and a next target monitoring target, the previous target monitoring target and the previous image capturing device are arranged in the same position, the next target monitoring target and the next image capturing device are arranged in the same position, the image capturing device captures images of the target targets in the target images, and each target image corresponds to each target monitoring target, the method comprises the following steps:
and acquiring a target image corresponding to the next target monitoring target through the former image acquisition device.
4. The tunnel settlement monitoring method based on visual transmission as claimed in claim 3, wherein the obtaining of the elevation data corresponding to the target monitoring point through visual transmission according to the target image, the elevation data being used for reflecting the height of the target monitoring point in the settlement direction, comprises:
acquiring the distance between the previous image acquisition device and the next target monitoring target, wherein the distance is the length in the connecting line direction of the image acquisition device and the target monitoring target;
acquiring a focal length corresponding to the image acquisition device;
acquiring the vertical coordinate of the next target monitoring target in the coordinate system corresponding to the previous image acquisition device;
obtaining a relative elevation between the next target monitoring target and the previous image acquisition device according to the distance, the focal length and the ordinate, wherein the relative elevation is used for reflecting the height difference of the next target monitoring target and the previous image acquisition device in the sedimentation direction;
and obtaining the elevation data corresponding to the next target monitoring target in the target monitoring points according to the relative elevation between the next target monitoring target and the previous image acquisition device.
5. The method for monitoring tunnel settlement based on visual transmission as claimed in claim 4, wherein the obtaining a relative elevation between the next target monitoring target and the previous image capturing device according to the distance, the focal length and the ordinate, the relative elevation being used for reflecting a height difference between the next target monitoring target and the previous image capturing device in a settlement direction, comprises:
dividing the ordinate by the focal length to obtain an operation result;
and multiplying the calculation result by the distance to obtain the relative elevation.
6. The method for monitoring tunnel settlement based on visual transmission as claimed in claim 4, wherein the obtaining the elevation data corresponding to the next target monitoring target at the target monitoring point according to the relative elevation between the next target monitoring target and the previous image capturing device comprises:
calculating the relative elevation between the previous image acquisition device and a base point, wherein the elevation of the base point is known, the base point is positioned outside the structural body to be monitored, and the base point, the previous image acquisition device and the next target monitoring target are sequentially arranged;
and obtaining the elevation data corresponding to the next target monitoring target according to the relative elevation between the former image acquisition device and the base point and the elevation of the base point.
7. The tunnel settlement monitoring method based on visual transmission according to claim 4, further comprising:
calculating the elevation between the previous image acquisition device and a reference point, and recording as a first elevation, wherein the previous image acquisition device, the next image acquisition device and the reference point are sequentially arranged;
calculating the elevation between the latter image acquisition device and the reference point, and recording as a second elevation;
calculating a difference value corresponding to the first elevation and the second elevation;
calculating the absolute difference between the difference value and the elevation data corresponding to the next target monitoring target;
and when the absolute difference is larger than a set value, adjusting the elevation data corresponding to the target monitoring target according to the difference to obtain the adjusted elevation data.
8. A tunnel settlement monitoring device based on visual transmission is characterized in that the device comprises the following components:
the system comprises an image acquisition module, a monitoring module and a monitoring module, wherein the image acquisition module is used for acquiring a target image corresponding to a target monitoring point, the target monitoring point is positioned on a structure body to be monitored, and the structure body to be monitored is a tunnel;
the image analysis module is used for obtaining elevation data corresponding to the target monitoring point through visual transmission according to the target image, and the elevation data is used for reflecting the height of the target monitoring point in the settlement direction;
and the monitoring module is used for obtaining a settlement monitoring result of the structure body to be monitored according to the elevation data.
9. A terminal device, characterized in that the terminal device comprises a memory, a processor and a visual transfer-based tunnel settlement monitoring program stored in the memory and operable on the processor, and the processor implements the steps of the visual transfer-based tunnel settlement monitoring method according to any one of claims 1 to 7 when executing the visual transfer-based tunnel settlement monitoring program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a visual transfer-based tunnel settlement monitoring program, which when executed by a processor, implements the steps of the visual transfer-based tunnel settlement monitoring method according to any one of claims 1 to 7.
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