阅读说明：本技术 一种基于图像识别的岩土体内空间位移监测装置和系统 (Rock-soil body inner space displacement monitoring device and system based on image recognition ) 是由 李忠 孟唱 朱帅 倪嘉卿 于 2021-05-27 设计创作，主要内容包括：本发明涉及一种基于图像识别的岩土体内空间位移监测装置和系统,装置包括盒体(立方体结构,上底板、前侧板和右侧板的内表面上设有网格标记)以及位于盒体内的球形轴承(外圈与盒体固定连接,内圈为球体且设有圆柱形通孔,圆柱形通孔的中心轴过内圈的中心,且垂直于水平面)、三个照相机(镜头分别面向上底板、前侧板和右侧板,且中轴线与其面对的板相互垂直；位于圆柱形通孔的上方,且与球形轴承的内圈固定连接；各与一根电源线和一根传输线连接)和平衡秤砣(位于圆柱形通孔的下方,且与球形轴承的内圈固定连接)；系统包括两个以上装置,以装置中的盒体为节点进行铺设形成的三维空间网格。本发明的装置和系统可有效监测岩土体内空间位移。(The invention relates to a rock-soil body internal space displacement monitoring device and system based on image recognition, wherein the device comprises a box body (in a cubic structure, grid marks are arranged on the inner surfaces of an upper bottom plate, a front side plate and a right side plate), a spherical bearing (an outer ring is fixedly connected with the box body, the inner ring is a sphere and is provided with a cylindrical through hole, the central axis of the cylindrical through hole passes through the center of the inner ring and is vertical to the horizontal plane), three cameras (a lens respectively faces the upper bottom plate, the front side plate and the right side plate, and the central axis is vertical to the plate facing the cylindrical through hole; is positioned above the cylindrical through hole and is fixedly connected with the inner ring of the spherical bearing; respectively connected with a power line and a transmission line) and a balance weight (positioned below the cylindrical through hole and fixedly connected with the inner ring of the spherical bearing); the system comprises more than two devices, and a three-dimensional space grid formed by laying with box bodies in the devices as nodes. The device and the system can effectively monitor the space displacement in the rock and soil body.)

1. A rock-soil body inner space displacement monitoring device based on image recognition is characterized by comprising a box body, a spherical bearing (6), three cameras (4) and a balance weight (7), wherein the spherical bearing, the three cameras (4) and the balance weight are positioned in the box body;

the box body is of a cubic structure and consists of an upper bottom plate, a lower bottom plate (2), a front side plate, a rear side plate, a left side plate and a right side plate, wherein grid marks are arranged on the inner surfaces of the upper bottom plate, the front side plate and the right side plate;

the outer ring of the spherical bearing (6) is fixedly connected with the box body, the inner ring is a sphere and is provided with a cylindrical through hole, and the central axis of the cylindrical through hole passes through the center of the inner ring and is vertical to the horizontal plane;

the lenses of the three cameras (4) respectively face the upper bottom plate, the front side plate and the right side plate; the central axis of the lens of each camera (4) is perpendicular to the plate facing the camera (4);

the three cameras (4) are positioned above the cylindrical through hole and are fixedly connected with the inner ring of the spherical bearing (6); the three cameras (4) are respectively connected with a power line and a transmission line;

the balance weight (7) is positioned below the cylindrical through hole and is fixedly connected with the inner ring of the spherical bearing (6).

2. The device for monitoring the spatial displacement in the rock and soil body based on the image recognition is characterized in that the upper bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate are connected to form the cover body (1), and the cover body (1) is transparent.

3. The device for monitoring the spatial displacement in the rock and soil body based on the image recognition is characterized in that the edge of the lower bottom plate (2) extends upwards along the thickness direction to form a connecting plate, the connecting plate is connected with the cover body (1) through a bolt, a sealing gasket (10) is sleeved on the rod part of the bolt, and the sealing gasket (10) is positioned between the head part of the bolt and the connecting plate.

4. The device for monitoring the in-vivo space displacement in rock and soil based on image recognition according to claim 1, wherein the outer ring of the spherical bearing (6) is fixedly connected with the lower bottom plate (2), and the central axis of the outer ring of the spherical bearing (6) is perpendicular to the lower bottom plate (2).

5. The device for monitoring the spatial displacement in the rock and soil body based on the image recognition is characterized in that the outer ring of the spherical bearing (6) is fixedly connected with the lower bottom plate (2) through a plurality of bearing rods (3).

6. The device for monitoring the displacement of the space in the rock and earth body based on the image recognition is characterized in that the radius of the cylindrical through hole is 2/3 of the radius of the inner circle.

7. The device for monitoring the displacement of the intra-soil space in the rock and soil based on image recognition is characterized in that three cameras (4) are fixedly connected with the inner ring of a spherical bearing (6) through a supporting circular plate (5); a supporting circular plate (5) is horizontally fixed in the cylindrical through hole, and the three cameras (4) are simultaneously connected with the supporting circular plate (5).

8. The rock-soil body inner space displacement monitoring device based on image recognition according to claim 7, wherein the balance weight (7) is fixedly connected with the inner ring of the spherical bearing (6) through a cross (8); the cross (8) is horizontally fixed in the cylindrical through hole, the cross (8) is superposed with the center of the inner ring of the spherical bearing (6), and the balance weight (7) is connected with the center of the cross (8); the supporting circular plate (5) is positioned above the cross (8).

9. The device for monitoring the spatial displacement in the rock and earth body based on the image recognition is characterized by further comprising an illuminating device positioned in the box body.

10. The image recognition-based rock and soil in-vivo spatial displacement monitoring system adopting the image recognition-based rock and soil in-vivo spatial displacement monitoring device according to any one of claims 1 to 9, is characterized by comprising more than two image recognition-based rock and soil in-vivo spatial displacement monitoring devices, wherein the image recognition-based rock and soil in-vivo spatial displacement monitoring system is a three-dimensional spatial grid formed by laying with box bodies in the image recognition-based rock and soil in-vivo spatial displacement monitoring devices as nodes;

the length direction of the three-dimensional space grid is parallel to the length direction of the three-dimensional side slope, the width direction is parallel to the width direction of the three-dimensional side slope, the height direction is parallel to the height direction of the three-dimensional side slope, the distance between two adjacent nodes along the length direction accounts for 3% -10% of the length of the three-dimensional side slope, the distance between two adjacent nodes along the width direction accounts for 3% -10% of the width of the three-dimensional side slope, and the distance between two adjacent nodes along the height direction accounts for 3% -10% of the height of the three-dimensional side slope.

Technical Field

The invention belongs to the technical field of monitoring and sensing of rock and soil mass displacement in civil engineering, relates to a device and a system for monitoring the space displacement in the rock and soil mass based on image recognition, and particularly relates to a device for monitoring and sensing the integral displacement and the change trend of the integral displacement in the soil mass under the action of external load or environment.

Background

In recent years, the national economy has been rapidly developed, great importance is placed on the economic development of western regions, and more investment is made on the construction of traffic infrastructures in the western regions. The mountainous areas in the western regions have more fluctuation, the difficulty in constructing highways, bridges, tunnels and the like is higher, and the cost is higher. Some natural disasters often occur in mountainous areas, side slopes slide under rain erosion, or the side slopes are impacted and influenced by earthquakes, so that the side slopes are unstably slid, and a large natural disaster is caused. At present, the early warning work of the side slope disasters is not carried out too much in China, so that a lot of complex geology can often meet the disaster problems of debris flow, landslide and collapse in practice, damage is caused to passing vehicles, huge threats are caused to the life and property safety of people, the side slope stability condition is accurately mastered in time, the early warning of the disasters is an effective measure for guaranteeing the side slope safety, property loss and casualties caused by the side slope collapse are reduced to the maximum extent, and the side slope deformation is monitored. Of course, not only the slope problem needs to be monitored, but also many problems in real life need to be monitored, such as deformation of soil bodies inside tunnels, deformation of soil bodies of road foundations, deformation of foundation pits and the like. As is known, various geotechnical and underground engineering disasters occur firstly from deformation inside soil bodies, and initial damage states inside the soil bodies are difficult to find immediately only by an external displacement monitoring device, so that early warning monitoring and forecasting of engineering geological disasters such as slopes and landslides are delayed, and further greater personnel and property loss is caused. If the displacement and the change trend of the soil body can be obtained from the inner part of the rock-soil body earlier, more time can be obtained, and the occurrence of geological disasters can be predicted in advance so as to avoid or reduce the loss of lives and properties of people caused by the geological disasters.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provide a device and a system for monitoring the space displacement in the rock and soil body based on image recognition. The invention installs three cameras in the box body, records and transmits real pictures of the box body rotation in the box body through the camera shooting, namely changes of the internal part of the soil body caused by external load, quickly and effectively calculates the displacement of one point in the soil body and the change trend thereof by utilizing image monitoring, arranges a plurality of measuring points through the internal space of the soil body, and carries out comprehensive calculation and analysis based on the displacement monitoring data of the plurality of measuring points so as to predict the displacement state and the relative movement trend of different areas in the rock-soil body, and carries out prejudgment on the areas and scales of the rock-soil body possibly having geological disasters in advance, thereby achieving the purpose of preventing the geological disasters.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a rock-soil body inner space displacement monitoring device based on image recognition comprises a box body, a spherical bearing, three cameras and a balance weight, wherein the spherical bearing, the three cameras and the balance weight are positioned in the box body; the box body needs to have high strength and sealing performance so as to effectively protect internal equipment of the device and ensure that the device is suitable for various extremely severe environmental conditions;

the box body is of a cubic structure (other shapes can make experimental data collection and calculation more complex, and the box body can be designed into other shapes on the premise of not considering the complexity), and consists of an upper bottom plate, a lower bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, wherein grid marks are arranged on the inner surfaces of the upper bottom plate, the front side plate and the right side plate;

the outer ring of the spherical bearing is fixedly connected with the box body, the inner ring is a sphere and is provided with a cylindrical through hole, and the central axis of the cylindrical through hole passes through the center of the inner ring and is vertical to the horizontal plane;

the lenses of the three cameras respectively face the upper bottom plate, the front side plate and the right side plate; the central axis of the lens of each camera is perpendicular to the plate facing the camera (the initial three-dimensional coordinate center can be easily determined only when the condition is met, and accordingly, the recorded data can be easily analyzed, and small errors can be generated and can be ignored in the experimental process);

the three cameras are positioned above the cylindrical through hole and fixedly connected with the inner ring of the spherical bearing; the three cameras are respectively connected with a power line and a transmission line, power is supplied through the power line, and signals are transmitted to a terminal (namely a data processing center) through the transmission line; the three cameras can constantly record the rotation of the box body, namely the space displacement of one point in the soil body and the change trend thereof;

the balance weight is positioned below the cylindrical through hole and fixedly connected with the inner ring of the spherical bearing, and is used for keeping the camera unchanged in the vertical direction;

in the spherical bearing in the prior art, an inner ring can rotate 360 degrees around an outer ring, but in the invention, because the inner ring is fixedly connected with a balance weight, the spherical bearing cannot rotate 360 degrees and can rotate in a certain range around the vertical direction, a tether (used for connecting the balance weight and the inner ring) and three cameras cannot be touched by the outer ring during rotation so as to avoid influencing recorded data, the rotation range is within the range of moving 0-45 degrees to the vertical direction by taking the horizontal center direction of the outer ring as a starting point, and experimental data are more reliable;

in the invention, whether the inner ring is required to rotate in a certain range around the horizontal direction or not is required to be arranged so as to ensure that the lenses of the three cameras always respectively face the upper bottom plate, the front side plate and the right side plate without excessive consideration, because the monitoring process of the invention is in the initial small deformation stage of the interior of the slope soil body, the monitoring device can not generate large rotation or parallel movement in the soil body, can not generate acceleration generated horizontally or vertically, and can not generate inertia force (or can ignore the inertia force) particularly in the horizontal direction, so that the relative rotation of the inner ring and the outer ring of the device in the horizontal plane can not be generated, and the lenses of the three cameras can always respectively face the upper bottom plate, the front side plate and the right side plate. In the actual manufacturing process, proper materials and lubricating measures can be selected, the friction coefficient of the inner ring and the outer ring is adjusted, the weight of the balance weight is controlled, and the inner ring cannot rotate under small acting force in the horizontal direction by utilizing the friction force generated between the inner ring and the outer ring.

As a preferred technical scheme:

as the rock-soil body inner space displacement monitoring device based on image recognition, the upper bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate are connected to form the cover body, and the cover body is transparent so as to be beneficial to light entering the box body and ensure that the camera can normally work.

According to the rock-soil body inner space displacement monitoring device based on image recognition, the edge of the lower bottom plate extends upwards along the thickness direction to form the connecting plate, the connecting plate is connected with the cover body through the bolt, the rod part of the bolt is sleeved with the sealing washer, and the sealing washer is located between the head part of the bolt and the connecting plate, plays a role in sealing and prevents permeation of underground water or rainwater.

According to the rock-soil body space displacement monitoring device based on image recognition, the outer ring of the spherical bearing is fixedly connected with the lower bottom plate, and the central shaft of the outer ring of the spherical bearing is perpendicular to the lower bottom plate.

According to the rock-soil body inner space displacement monitoring device based on image recognition, the outer ring of the spherical bearing is fixedly connected with the lower bottom plate through the plurality of bearing rods, the bearing rods can be connected with the lower bottom plate in a welding mode, and the bearing rods can also be connected with the outer ring of the spherical bearing in a welding mode.

According to the rock-soil body inner space displacement monitoring device based on image recognition, the radius of the cylindrical through hole is 1/3-2/3 of the radius of the inner ring.

According to the rock-soil body internal space displacement monitoring device based on image recognition, three cameras are fixedly connected with the inner ring of the spherical bearing through the supporting circular plate; the supporting circular plate is horizontally fixed in the cylindrical through hole of the inner ring of the spherical bearing, and the three cameras are simultaneously connected with the supporting circular plate.

According to the rock-soil body inner space displacement monitoring device based on image recognition, the balance weight is fixedly connected with the inner ring of the spherical bearing through the cross; the cross is horizontally fixed in the cylindrical through hole of the inner ring of the spherical bearing, the cross is superposed with the center of the inner ring of the spherical bearing, and the balance weight is connected with the center of the cross; the supporting circular plate is positioned above the cross.

The rock-soil body internal space displacement monitoring device based on image recognition further comprises an illuminating device positioned in the box body; the lighting device can be an LED lamp or the like, so that the device can normally operate in the dark.

The invention also provides an image recognition-based rock and soil in-vivo space displacement monitoring system which adopts the image recognition-based rock and soil in-vivo space displacement monitoring device, and comprises more than two image recognition-based rock and soil in-vivo space displacement monitoring devices, wherein the image recognition-based rock and soil in-vivo space displacement monitoring system is a three-dimensional space grid formed by laying with box bodies in the image recognition-based rock and soil in-vivo space displacement monitoring devices as nodes;

the three-dimensional space grid is of a cubic structure so as to be convenient for calculation, monitoring data of a specific area can be actually acquired according to the terrain of a side slope and the actual engineering requirement, the length direction of the three-dimensional space grid is parallel to the length direction of the three-dimensional side slope, the width direction of the three-dimensional side slope is parallel to the width direction of the three-dimensional side slope, the height direction of the three-dimensional space grid is parallel to the height direction of the three-dimensional side slope, nodes are arranged densely and wasted, and the experimental effect cannot be achieved due to excessive sparseness, the three-dimensional space grid formed by the nodes is laid by selecting proper distances according to the length, the width and the height of the side slope, the distance between two adjacent nodes along the length direction accounts for 3% -10% of the length of the three-dimensional side slope, the distance between two adjacent nodes along the width direction accounts for 3% -10% of the width of the three-dimensional side slope, and under the condition that the cost is not considered, the more densely the device is laid, the better the device is laid;

under the ideal condition, the laying is equidistant, namely, the distance between any two adjacent nodes in the three-dimensional space grid along the length direction is equal, the distance between any two adjacent nodes in the width direction is equal, and the distance between any two adjacent nodes in the height direction is equal.

The invention principle is as follows:

when the device is used, the whole box body is buried in the soil body, when the soil body of the rock and soil is influenced by external load or self gravity, the displacement of the internal soil body can be changed, at the moment, the box body can also rotate along with the soil body, the camera keeps unchanged in the vertical direction under the action of the balance weight and the spherical bearing, the rotating process of the box body with the mark is clearly recorded, the shot picture is timely transmitted to a data processing center through wireless, and the picture is processed, so that the displacement and the change trend of one point in the soil body are determined.

The image recognition technology related by the invention is the prior art, the feature extraction is carried out on an original image by utilizing a convolution neural grid, the position of the current feature point in the next frame image is calculated by an optimization algorithm after the representative feature point is selected by utilizing an optical flow method, then the feature point with unchanged position is eliminated by using a certain filtering method, and the tracked point can be obtained. The system takes images acquired by a common camera as an information source, aims at the field of dynamic characteristics of machine vision, realizes speed estimation and track tracking of multiple targets, can analyze the current and historical motion states of the multiple targets, further can analyze the deformation or motion response trend of each point of a box grid mark, and further analyzes a space cloud point set formed by the motion states of each point in three planes, thereby determining the motion state of the whole box, namely the displacement and the change trend of one point in the soil represented by the box. The method only applies the existing image recognition technology to the rock-soil body internal space displacement monitoring device, provides feasible technical direction, and can improve and adjust the specific implementation technology in the subsequent experiment process to optimize the monitoring device.

The system of the invention is a three-dimensional space grid formed by laying the box bodies in the device as nodes, after the displacement corresponding to each box body is obtained according to the process, the actual measurement data is used as the basis, the actual measurement data is compared with the theoretical calculation result, the theoretical calculation input parameters are reversely corrected, so that the theoretical calculation result is basically consistent with the actual data, the stress, the displacement and the like in the current slope rock soil are calculated according to the corrected theoretical calculation parameters, the monitoring and the analysis are carried out at any time, and the dynamic prediction of the internal stress and the displacement change state of the slope rock soil is achieved. It should be noted that: the more the monitoring devices are arranged, the denser the grids are, and the more accurate the result is. However, in practical engineering, it is impossible to arrange a large number of monitoring devices in all directions in consideration of cost. Generally, only some key areas are selected for arrangement, and after the actual measurement displacement state of a local area is obtained, theoretical calculation parameters are corrected, so that the prediction analysis of the stress and the displacement of the rock and soil mass in the whole area is realized. The calculation method related to the invention can refer to the Chinese invention patent with the application number of 2020111755829 and the name of 'a three-dimensional slope stability evaluation method based on stress vectors', and the invention provides a three-dimensional slope stability analysis method based on gridding stress fields, wherein the sources of stress field data have two channels: firstly, obtaining the target through numerical simulation; and secondly, obtaining the target through a field monitoring method. The method has the main function of acquiring the stress and displacement data of the slope rock-soil body in the second mode. The box arrangement point in the invention corresponds to the search grid center point of the above referenced patent, and the monitoring data thereof represents the displacement of the search grid center point. The displacement data obtained by the invention can be directly applied to the stability evaluation of the local region of the side slope in the reference patent, and specifically comprises the following steps:

the criteria for potentially damaging a cell are as follows:

H≥[H]；

in the formula, U represents the displacement of the center point of the search grid; [H] representing the allowed displacement of the central point of the search grid;

when the displacement of the center point of the search grid is larger than or equal to the allowable displacement, the search grid is considered to generate slippage damage, all the search grids judged to generate slippage damage are connected into a whole, a space slippage surface can be formed, and therefore the stability of the side slope is evaluated, and the allowable displacement value can obtain a deformation control index according to the actual engineering safety control requirement or based on the relevant curves of field tests such as foundation bearing capacity, settlement and the like;

on the other hand, the method can be used for correcting the calculation parameters of the numerical simulation (the first data source), and the numerical calculation result can be consistent with the measured data through repeated correction. The process is equivalent to that more stress field and displacement field data which are consistent with actual measurement are obtained through indirect means according to local monitoring data, so that the calculation of the whole or local safety coefficient of the side slope and the stability evaluation are relatively accurate.

Has the advantages that:

(1) the rock and soil body space displacement monitoring device and system based on image recognition are small in size, high in monitoring efficiency and less influenced by external environment;

(2) the device and the system for monitoring the space displacement in the rock and soil mass based on image recognition are relatively low in cost, can monitor the slight change in the rock and soil mass, and can transmit the soil mass deformation image and the change trend of the space displacement in the soil mass in real time. The monitoring data plays a role in early warning, and the occurrence of geological disasters is pre-judged in advance so as to avoid or reduce the loss caused by natural disasters;

(3) the rock-soil body inner space displacement monitoring device and the system based on image recognition are simple in installation and operation, can adapt to various different environments, are wide in application range and have good expansion prospects.

Drawings

FIG. 1 is a schematic diagram of an image recognition-based device for monitoring the spatial displacement in rock and soil mass according to the present invention;

FIG. 2 is a front view of the device for monitoring the displacement of the space in the rock and soil body based on image recognition according to the present invention;

FIG. 3 is a top view of the device for monitoring the displacement of the space in the rock and soil mass based on image recognition;

FIG. 4 is a schematic diagram of a geometric relationship of the device for monitoring the spatial displacement in the rock and earth mass based on image recognition under the rotation of a box body (the rotation angle is alpha);

FIGS. 5 to 7 show images taken by the camera when the case is in different states;

FIG. 8 is a schematic diagram of an image recognition-based system for monitoring spatial displacement in a rock-soil body according to the present invention;

the device comprises a cover body 1, a lower bottom plate 2, a bearing rod 3, a camera 4, a supporting circular plate 5, a spherical bearing 6, a balance weight 7, a cross 8, a bolt 9, a sealing washer 10, an illuminating device 11, a box body 12, a transmission line 13 and a transmitter 14.

Detailed Description

The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

A rock-soil body inner space displacement monitoring device based on image recognition comprises a box body, a spherical bearing 6, three cameras 4, a balance weight 7 and an illuminating device 11, wherein the spherical bearing 6, the three cameras 4, the balance weight 7 and the illuminating device are positioned in the box body as shown in figures 1-7;

the box body is of a cubic structure and consists of an upper bottom plate, a lower bottom plate 2, a front side plate, a rear side plate, a left side plate and a right side plate, wherein grid marks are arranged on the inner surfaces of the upper bottom plate, the front side plate and the right side plate; the upper bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate are connected to form a cover body 1, and the cover body 1 is transparent; the edge of the lower bottom plate 2 extends upwards along the thickness direction to form a connecting plate, the connecting plate is connected with the cover body 1 through a bolt 9, a sealing washer 10 is sleeved on the rod part of the bolt 9, and the sealing washer 10 is positioned between the head part of the bolt 9 and the connecting plate to play a role in sealing and prevent the permeation of underground water or rainwater;

the outer ring of the spherical bearing 6 is fixedly connected with the lower base plate 2 through a plurality of bearing rods 3 in a welding mode, and the central shaft of the outer ring of the spherical bearing 6 is vertical to the lower base plate 2; the inner ring of the spherical bearing 6 is a sphere and is provided with a cylindrical through hole, the radius of the cylindrical through hole is 2/3 of the radius of the inner ring, and the central axis of the cylindrical through hole passes through the center of the inner ring and is vertical to the horizontal plane;

the three cameras 4 are positioned above the cylindrical through hole and fixedly connected with the inner ring of the spherical bearing 6 through a supporting circular plate 5; the specific fixed connection relation is as follows: a supporting circular plate 5 is horizontally fixed in a cylindrical through hole of an inner ring of the spherical bearing 6, and the three cameras 4 are simultaneously connected with the supporting circular plate 5;

the lenses of the three cameras 4 respectively face the upper bottom plate, the front side plate and the right side plate; the central axis of the lens of each camera 4 is perpendicular to the plate facing that camera 4; the three cameras 4 are respectively connected with a power line and a transmission line 13, power is supplied through the power line, and signals are transmitted to a terminal (namely, a data processing center) through the transmission line 13; the three cameras 4 can constantly record the rotation of the box body, namely the displacement and the change trend of one point in the soil body;

the balance weight 7 is positioned below the cylindrical through hole and fixedly connected with the inner ring of the spherical bearing 6 through a cross 8 (the cross 8 is horizontally fixed in the cylindrical through hole of the inner ring of the spherical bearing 6, the cross 8 is coincided with the center of the inner ring of the spherical bearing 6, and the balance weight 7 is connected with the center of the cross 8) and used for keeping the camera 4 unchanged in the vertical direction; the rotation range of the spherical bearing 6 is within the range of moving 0-45 degrees to the vertical direction by taking the horizontal center direction of the outer ring as a starting point, so that the experimental data are more reliable;

the support disk 5 is located above the cross 8.

As shown in fig. 8, the image recognition-based rock and soil in-vivo spatial displacement monitoring system adopting the image recognition-based rock and soil in-vivo spatial displacement monitoring device comprises more than two image recognition-based rock and soil in-vivo spatial displacement monitoring devices (which are connected with a transmitter 14), wherein the image recognition-based rock and soil in-vivo spatial displacement monitoring system is a three-dimensional spatial grid formed by laying the box bodies 12 in the image recognition-based rock and soil in-vivo spatial displacement monitoring devices as nodes;

the length direction of the three-dimensional space grid is parallel to the length direction of the three-dimensional side slope, the width direction is parallel to the width direction of the three-dimensional side slope, the height direction is parallel to the height direction of the three-dimensional side slope, the nodes are arranged too densely and wasted, the experiment effect cannot be achieved due to too sparse, the three-dimensional space grid formed by the nodes needs to be laid at a proper distance according to the length, the width and the height of the side slope, the distance between two adjacent nodes along the length direction accounts for 3% -10% of the length of the three-dimensional side slope, the distance between two adjacent nodes along the width direction accounts for 3% -10% of the width of the three-dimensional side slope, and the distance between two adjacent nodes along the height direction accounts for 3% -10% of the height of the three-dimensional side slope.

Three monitoring boxes are placed in the horizontal direction of the surface of the slope, three different directions are placed in the three monitoring boxes, a plane is determined by the three points, the three monitoring boxes serve as a standard, the relative motion in the horizontal direction or the vertical direction of the box body in the slope can be monitored, and the positions of the three monitoring boxes can be measured through a traditional manual measurement method.

The monitoring device of the invention keeps unchanged in the vertical direction through the cameras 4, each camera 4 shoots one direction of the cover body 1, the three cameras 4 can shoot the box body in real time to rotate within a small range of 360 degrees, and when the box body rotates, the cameras 4 shoot pictures of the box body rotation; the grid picture with marks shot when the box body is static is shown as figure 5, the picture shot when the box body rotates along the shooting direction of the camera 4 is shown as figure 6, the picture shot when the box body is twisted around the camera 4 is shown as figure 7, the shot picture is transmitted to a data processing center, the picture is analyzed and calculated, and the displacement and the dynamic change of one point in the soil body are calculated; in a set area, the box bodies are continuously paved inside the rock soil by taking the box bodies as nodes to form a three-dimensional space grid, the stress, the strain and the displacement inside the rock soil are reversely (or reversely) calculated by obtaining the displacement of each node, and the trend of rock soil deformation is predicted.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.