Three-dimensional laser scanning device for monitoring open stope slope

Abstract

The utility model provides an open-air stope slope monitoring three-dimensional laser scanning device which comprises an unmanned aerial vehicle, the bottom of the unmanned aerial vehicle is connected with a mounting mechanism, the mounting mechanism is provided with an inclined camera, and the top of the unmanned aerial vehicle is provided with a dazzling dispersing mechanism. The dazzling dispersing mechanism is used for dispersing birds around the unmanned aerial vehicle through reflected light of the natural environment, connecting arms are connected to the four corners of the unmanned aerial vehicle correspondingly, driving motors are connected to one ends of the connecting arms, fan blades are connected to output shafts of the driving motors, telescopic rods are connected to the two sides of the bottom of the unmanned aerial vehicle correspondingly, and landing supporting rods are connected to the bottoms of the telescopic rods. A laser radar detector is arranged on one side of the unmanned aerial vehicle. In the scheme, the reflected light generated by the dazzling dispersing mechanism irradiates the birds, and when the birds approach the unmanned aerial vehicle, as the reflected light can stimulate the eyes of the birds, the birds change the flying direction under the stimulation of the light and are far away from the unmanned aerial vehicle, so that the birds are prevented from colliding with the birds.

Description

Technical Field

[0001] The utility model relates to the technical field of open pit slope monitoring, in particular to a three-dimensional laser scanning device for open pit slope monitoring. Background Art

[0002] Open pits require slope monitoring, and some solutions use oblique photography technology for monitoring. Oblique photography technology simultaneously collects images from one vertical, four oblique, and five different perspectives to obtain rich high-resolution textures of the top and side views of the landform.

[0003] In the process of photographing the terrain with an oblique camera, it is necessary to use a drone to scan and photograph the terrain at multiple different heights. When the drone passes over some trees around an open-pit mine at low altitude, the loud noise from the drone's propeller blades will scare the birds living in the trees. As the drone is close to the trees, it is difficult for the birds to find the drone when they fly up in fright, and they may collide with the drone, causing the drone to crash and the birds to be injured or killed. Utility Model Content

[0004] The utility model provides a three-dimensional laser scanning device for monitoring the slope of an open pit, so as to solve the problem in the prior art that a flying drone may collide with birds during the process of using an inclined camera to monitor the slope of an open pit.

[0005] In order to solve the above problems, the utility model provides a three-dimensional laser scanning device for monitoring the slope of an open-pit mine, including a drone, a mounting mechanism connected to the bottom of the drone, a tilting camera arranged on the mounting mechanism, a dazzling dispersing mechanism arranged on the top of the drone, the dazzling dispersing mechanism is used to use the reflected light of the natural environment to disperse the birds around the drone, the four corners of the drone are respectively connected to connecting arms, one end of the connecting arm is connected to a driving motor, the output shaft of the driving motor is connected to fan blades, telescopic rods are connected to both sides of the bottom of the drone, the bottom of the telescopic rod is connected to a ground support rod, and a laser radar detector is arranged on one side of the drone.

[0006] Furthermore, the glare dispersing mechanism includes a bracket installed on one side of the top of the drone, a rotating ring is provided on the bracket, a reflective color strip is connected to the outer side of the rotating ring, a plurality of grooves are opened in the circumference of the rotating ring, a reflector is provided inside the groove, and the inner wall of the groove drives the rotating ring to rotate under the action of wind.

[0007] Furthermore, the bracket includes a lower chassis and an upper connection cover which are connected to each other. The upper connection cover is a hollow cylindrical structure, and the rotating ring is rotatably arranged in the cavity of the upper connection cover.

[0008] Furthermore, an insert rod is connected inside the upper connecting cover, a sleeve is connected to the lower chassis, the outer side of the insert rod is threadedly connected to the inner side of the sleeve, and a rotating collar is sleeved on the sleeve.

[0009] Furthermore, a bearing is arranged between the rotating collar and the sleeve.

[0010] Furthermore, there are multiple rotating collars, and the multiple rotating collars are spaced apart from top to bottom.

[0011] Furthermore, the mounting mechanism includes a connecting block installed on one side of the bottom of the drone, the bottom of the connecting block is connected to an upper connecting frame, the bottom of the upper connecting frame is provided with a lower connecting frame, a buffer ball is connected between the lower connecting frame and the upper connecting frame, and the tilting camera is installed on the lower connecting frame.

[0012] Furthermore, a first adjusting motor is connected in the lower connecting frame, an output shaft of the first adjusting motor is connected to a connecting bracket, a second adjusting motor is arranged on one side of the lower part of the connecting bracket, and an output shaft of the second adjusting motor is connected to one side of the tilting camera.

[0013] Furthermore, the output shaft of the first adjusting motor and the output shaft of the second adjusting motor are perpendicular to each other.

[0014] Furthermore, the lower connecting frame is connected with a fixing rod, the fixing rod passes through the buffer ball and the upper connecting frame, and a fixing nut is screwed on the fixing rod.

[0015] The technical solution of the utility model is applied to provide a three-dimensional laser scanning device for monitoring the slope of an open pit mine, including a drone, a mounting mechanism connected to the bottom of the drone, a tilting camera arranged on the mounting mechanism, a dazzling dispersing mechanism arranged on the top of the drone, the dazzling dispersing mechanism is used to use the reflected light of the natural environment to disperse the birds around the drone, the four corners of the drone are respectively connected to connecting arms, one end of the connecting arm is connected to a driving motor, the output shaft of the driving motor is connected to a fan blade, both sides of the bottom of the drone are connected to telescopic rods, the bottom of the telescopic rod is connected to a landing support rod, and a laser radar detector is arranged on one side of the drone. In this solution, the slope of the open pit mine is monitored by tilting the camera and the laser radar detector, and the birds are irradiated by the reflected light generated by the dazzling dispersing mechanism. When the birds approach the drone, the reflected light will stimulate the eyes of the birds, and the birds will change their flight direction under the stimulation of the light and stay away from the drone, thereby avoiding collision with the birds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1A schematic diagram of the structure of a three-dimensional laser scanning device for monitoring slopes in an open pit provided by an embodiment of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of some structures of the UAV in FIG.

[0019] Figure 3 for Figure 1 Schematic diagram of the mounting mechanism and tilt camera structure;

[0020] Figure 4 It is a structural schematic diagram of the dazzling dispersing mechanism in an embodiment of the utility model;

[0021] Figure 5 is a cross-sectional view of a dazzling dispersing mechanism in an embodiment of the utility model;

[0022] Figure 6 for Figure 4 Enlarged view of point A in the middle.

[0023] The above drawings include the following reference numerals:

[0024] 1. Drones;

[0025] 2. Mounting mechanism; 21. Connecting block; 22. Upper connecting frame; 23. Lower connecting frame; 24. Buffer ball; 25. First regulating motor; 26. Connecting bracket; 27. Second regulating motor;

[0026] 3. Tilt the camera;

[0027] 4. Dazzling dispersing mechanism; 41. Upper connecting cover; 42. Lower chassis; 43. Rotating collar; 44. Reflective color strip; 45. Groove; 46. Reflector;

[0028] 5. Connecting arm; 6. Driving motor; 7. Fan blades; 8. Telescopic rod; 9. Ground support rod; 10. Fixed rod; 11. Fixed nut; 12. Insert rod; 13. Casing; 14. LiDAR detector. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 6 As shown, an embodiment of the utility model provides a three-dimensional laser scanning device for monitoring the slope of an open-pit mine, including a drone 1, a mounting mechanism 2 is connected to the bottom of the drone 1, a tilting camera 3 is arranged on the mounting mechanism 2, a dazzling dispersing mechanism 4 is arranged on the top of the drone 1, the dazzling dispersing mechanism 4 is used to use the reflected light of the natural environment to disperse the birds around the drone 1, the four corners of the drone 1 are respectively connected to connecting arms 5, one end of the connecting arm 5 is connected to a driving motor 6, the output shaft of the driving motor 6 is connected to fan blades 7, telescopic rods 8 are connected to both sides of the bottom of the drone 1, the bottom of the telescopic rod 8 is connected to a ground support rod 9, and a laser radar detector 14 is arranged on one side of the drone 1.

[0031] In this scheme, the slope of the open-pit mine is monitored by tilting the camera 3 and the lidar detector 14, and the birds are illuminated by the reflected light generated by the dazzling dispersing mechanism 4. When the birds approach the drone 1, the reflected light will stimulate the birds' eyes, and the birds will change their flight direction under the stimulation of the light and stay away from the drone 1, thereby avoiding collision with the birds.

[0032] The dazzle dispersing mechanism 4 includes a bracket installed on one side of the top of the drone 1, on which a rotating ring 43 is provided, and a reflective color strip 44 is connected to the outer side of the rotating ring 43. The rotating ring 43 is circumferentially provided with a plurality of grooves 45, and a reflector 46 is provided inside the groove 45. The inner wall of the groove 45 drives the rotating ring 43 to rotate under the action of wind.

[0033] The reflective color strip 44 and the reflector 46 can both play a reflective role. By rotating the rotating ring 43, the light reflection range can be widened, thereby improving the effect of dispersing birds.

[0034] like Figures 4 to 6 As shown, the bracket includes a lower chassis 42 and an upper connection cover 41 connected to each other, the upper connection cover 41 is a hollow cylindrical structure, and a rotating ring 43 is rotatably disposed in the cavity of the upper connection cover 41. The hollow area is used to receive light and reflect light.

[0035] like Figure 5 As shown, the upper connecting cover 41 is connected with the insertion rod 12, the lower chassis 42 is connected with the sleeve 13, the outer side of the insertion rod 12 is screwed with the inner side of the sleeve 13, and the rotating collar 43 is sleeved on the sleeve 13. In this way, the upper connecting cover 41 and the lower chassis 42 are reliably connected, and the sleeve 13 is used to support the rotating collar 43.

[0036] Specifically, a bearing is provided between the rotating collar 43 and the sleeve 13 so that the rotating collar 43 can rotate smoothly.

[0037] In this solution, there are multiple rotating rings 43, and the multiple rotating rings 43 are arranged at intervals from top to bottom. The multiple rotating rings 43 improve the reflection effect of light.

[0038] like Figure 3 As shown, the mounting mechanism 2 includes a connecting block 21 installed on one side of the bottom of the drone 1, the bottom of the connecting block 21 is connected to an upper connecting frame 22, a lower connecting frame 23 is provided at the bottom of the upper connecting frame 22, a buffer ball 24 is connected between the lower connecting frame 23 and the upper connecting frame 22, and the tilt camera 3 is installed on the lower connecting frame 23. By providing the buffer ball 24, the vibration of the tilt camera 3 can be buffered. Among them, four buffer balls 24 are provided in the circumferential direction of the lower connecting frame 23.

[0039] Furthermore, a first adjusting motor 25 is connected inside the lower connecting frame 23, an output shaft of the first adjusting motor 25 is connected to a connecting bracket 26, a second adjusting motor 27 is provided on one side of the lower part of the connecting bracket 26, and an output shaft of the second adjusting motor 27 is connected to one side of the tilting camera 3. In this way, the multi-degree-of-freedom movement of the tilting camera 3 is realized.

[0040] The output shaft of the first adjusting motor 25 and the output shaft of the second adjusting motor 27 are perpendicular to each other.

[0041] In this solution, the lower connecting frame 23 is connected to the fixing rod 10, the fixing rod 10 passes through the buffer ball 24 and the upper connecting frame 22, and the fixing nut 11 is screwed on the fixing rod 10. This connection method is reliable and easy to operate.

[0042] In order to clearly understand this solution, further explanation is given below.

[0043] Figure 1 A schematic structural diagram of an embodiment of a three-dimensional laser scanning device for monitoring slopes in an open pit provided by the utility model; Figure 2 This is a schematic diagram of some structures of the UAV; Figure 3 It is a schematic diagram of the structure of the mounting mechanism and the tilt camera; Figure 4 It is a structural schematic diagram of the upper connecting cover and the lower chassis; Figure 5 It is a structural cross-sectional view of the upper connecting cover and the lower chassis; Figure 6 for Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0044] The three-dimensional laser scanning device for monitoring the slope of an open-pit mine includes a drone 1. A mounting mechanism 2 is connected to the bottom of the drone 1, and a tilting camera 3 is arranged on the mounting mechanism 2. A dazzle dispersing mechanism 4 is arranged on the top of the drone 1. Connecting arms 5 are connected to the drone 1 on all sides, and one end of the connecting arm 5 is connected to a driving motor 6. The output shaft of the driving motor 6 is connected to a fan blade 7. Telescopic rods 8 are connected to both sides of the bottom of the drone 1, and the bottom of the telescopic rod 8 is connected to a ground support rod 9. A laser radar detector 14 is arranged on one side of the drone 1. The mounting mechanism 2 is used to hang the tilting camera 3 on the drone 1. The dazzle dispersing mechanism 4 is used to use the natural environment to disperse the interference of birds around the drone 1.

[0045] The drone 1 is fixedly connected to the connecting arm 5 by bolts, the driving motor 6 and the connecting arm 5 are injection molded integral parts, the output shaft of the driving motor 6 is key-connected to the fan blade 7, the top of the telescopic rod 8 is fixedly connected to the bottom of the drone 1 by bolts, the ground support rod 9 and the bottom of the telescopic rod 8 are fused and cast integral parts, and the laser radar detector 14 is embedded in the front end of the drone 1. The tilt camera 3 and the laser radar detector 14 are both existing products, and scanning and data processing adopt existing technologies.

[0046] In the specific implementation process, Figure 1 and Figure 3 As shown, the mounting mechanism 2 includes a connecting block 21 installed on one side of the bottom of the drone 1, the bottom of the connecting block 21 is connected to an upper connecting frame 22, the bottom of the upper connecting frame 22 is provided with a lower connecting frame 23, and buffer balls 24 are provided around the lower connecting frame 23.

[0047] By arranging the buffer ball 24 between the upper connecting frame 22 and the lower connecting frame 23, the elastic material of the buffer ball 24 can be utilized to improve the stability between the upper connecting frame 22 and the lower connecting frame 23 and reduce shaking.

[0048] refer to Figure 1 and Figure 3 As shown, a first adjusting motor 25 is connected to the lower connecting frame 23, an output shaft of the first adjusting motor 25 is connected to a connecting bracket 26, a second adjusting motor 27 is connected to one side of the connecting bracket 26, and an output shaft of the second adjusting motor 27 passes through the outer side of the connecting bracket 26 and extends to the inside and is connected to one side of the tilting camera 3.

[0049] refer to Figure 1 and Figure 3 As shown, the four corners of the lower connecting frame 23 are connected with fixing rods 10 , the fixing rods 10 are inserted into the buffer balls 24 , and fixing nuts 11 are screwed onto the fixing rods 10 .

[0050] The first adjusting motor 25 can drive the connecting bracket 26 to rotate horizontally, and the second adjusting motor 27 on one side of the connecting bracket 26 drives the tilting camera 3 to flip forward and backward. The buffer ball 24 has a through hole in the middle. By sleeved the buffer ball 24 on the outside of the fixing rod 10, the fixing rod 10 on the lower connecting frame 23 passes through the upper connecting frame 22, and then is tightened and fixed by the fixing nut 11.

[0051] Among them, the upper connecting frame 22 and the connecting block 21 are injection-molded integral parts, the lower connecting frame 23 and the first adjusting motor 25 are fixedly connected by bolts, the output shaft of the first adjusting motor 25 and the connecting bracket 26 are key-connected, the second adjusting motor 27 and the connecting bracket 26 are fixedly connected by bolts, and the output shaft of the second adjusting motor 27 is fixedly bolted to one side of the tilt camera 3.

[0052] refer to Figure 4 , Figure 5 and Figure 6 As shown, the dazzle dispersing mechanism 4 includes a lower chassis 42 installed on one side of the top of the drone 1, an upper connecting cover 41 is inserted on the top of the lower chassis 42, a rotating ring 43 is arranged on the top of the lower chassis 42, a reflective color strip 44 is connected to the outer side of the rotating ring 43, a groove 45 is opened on the rotating ring 43, and a reflector 46 is arranged inside the groove 45.

[0053] refer to Figure 4 , Figure 5 and Figure 6 As shown, the bottom of the upper connecting cover 41 is connected to the insertion rod 12 , the bottom of the lower chassis 42 is connected to the sleeve 13 , and the outer side of the insertion rod 12 is threadedly connected to the inner side of the sleeve 13 .

[0054] By providing a groove 45 on the rotating collar 43, the airflow can enter the groove 45 when the drone 1 is moving, thereby driving the rotating collar 43 to swing left and right or rotate, so that the rotating collar 43 drives the reflective color strips 44 on the surface to move. The reflective color strips 44 come into contact with and refract sunlight to form light of different colors, which produces visual stimulation to the disturbing birds.

[0055] Among them, the upper connecting cover 41 and the insertion rod 12 are injection-molded integral parts, the lower chassis 42 and the sleeve 13 are injection-molded integral parts, the lower chassis 42 and the drone 1 are injection-molded integral parts, the rotating ring 43 is slidably mounted on the outside of the sleeve 13, the reflective color strip 44 is embedded in the inside of the rotating ring 43, and the reflector 46 is embedded in the inside of the groove 45.

[0056] The working principle of the three-dimensional laser scanning device for monitoring the slope of an open pit provided by the utility model is as follows:

[0057] When in use, the rotating ring 43 equipped with the reflective color strip 44 is set on the sleeve 13 of the lower chassis 42 at the top of the drone 1, and then the insertion rod 12 of the upper connecting cover 41 is inserted into the inside of the sleeve 13 and rotated to limit the rotating ring 43. When the drone 1 flies over the jungle, the rotating ring 43 inside the upper connecting cover 41 will come into contact with the airflow. After the groove 45 on the surface of the rotating ring 43 comes into contact with the airflow, it will drive the rotating ring 43 to swing left and right or rotate. The reflective color strip 44 on the surface of the rotating ring 43 and the reflector 46 inside the groove 45 can reflect sunlight. The reflective color strip 44 can form bright lights of different colors, which will produce visual stimulation to birds. The birds will stay away from the drone 1, preventing the birds from being frightened by the noise of the fan blades 7 and colliding with the drone 1 in a panic, causing the drone 1 to fall.

[0058] When in use, personnel control the driving motors 6 around the drone 1 to drive the fan blades 7 to rotate, so that the drone 1 is launched and scans the slope of the open-pit mine. The onboard laser radar detector 14 can obtain high-precision terrain data and evaluate the open-pit mining volume. Based on the terrain results in different periods, the volume change calculation of the two periods can be carried out, and the open-pit mining efficiency can be further calculated to update the mining cycle. Based on the high precision and high penetration characteristics of the laser radar detector 14, terrain results that meet the 1:500 scale requirements can be obtained. The aerial triangulation calculation process and the three-dimensional reconstruction calculation process use computationally intensive algorithms, such as key point extraction, automatic connection point matching, beam adjustment, dense matching of image feature points, robust three-dimensional reconstruction, seamless texture mapping, texture atlas packaging, and multi-level detail generation. The pixel limit for each project is 300 billion, and the image frame does not exceed 45 million pixels. The software automatically matches the orthophoto camera and the oblique camera 3 to collect images for engineering processing. The oblique camera 3 scans the terrain at three different heights during the scanning of the terrain shape, thereby ensuring that in the later modeling process, there are no blind spots in shooting, and the modeling images are unclear and incomplete. The first adjustment motor 25 can drive the connecting bracket 26 to rotate horizontally, and the second adjustment motor 27 can drive the oblique camera 3 to flip forward and backward, thereby achieving the basic adjustment and shooting purpose of the oblique camera 3.

[0059] The above is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0062] In the description of this scheme, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0063] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0064] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this scheme.

Claims

1. A three-dimensional laser scanning device for monitoring slopes in open pits, characterized in that: The invention comprises an unmanned aerial vehicle (1), wherein the bottom of the unmanned aerial vehicle (1) is connected to a mounting mechanism (2), the mounting mechanism (2) is provided with an inclined camera (3), the top of the unmanned aerial vehicle (1) is provided with a dazzling dispersing mechanism (4), the dazzling dispersing mechanism (4) is used to use reflected light from the natural environment to disperse birds around the unmanned aerial vehicle (1), the four corners of the unmanned aerial vehicle (1) are respectively connected to connecting arms (5), one end of the connecting arm (5) is connected to a driving motor (6), the output shaft of the driving motor (6) is connected to a fan blade (7), both sides of the bottom of the unmanned aerial vehicle (1) are connected to telescopic rods (8), the bottom of the telescopic rods (8) is connected to a ground support rod (9), and one side of the unmanned aerial vehicle (1) is provided with a laser radar detector (14).

2. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 1 is characterized in that: The dazzle dispersing mechanism (4) comprises a bracket mounted on one side of the top of the drone (1), the bracket being provided with a rotating collar (43), the outer side of the rotating collar (43) being connected with a reflective color strip (44), the rotating collar (43) being provided with a plurality of grooves (45) in a circumferential direction, the interior of the grooves (45) being provided with reflectors (46), and the inner wall of the grooves (45) driving the rotating collar (43) to rotate under the action of wind force.

3. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 2 is characterized in that: The bracket comprises a lower chassis (42) and an upper connection cover (41) which are connected to each other. The upper connection cover (41) is a hollow cylindrical structure. The rotating ring (43) is rotatably arranged in the cavity of the upper connection cover (41).

4. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 3 is characterized in that: The upper connecting cover (41) is internally connected with an insert rod (12), the lower chassis (42) is connected with a sleeve (13), the outer side of the insert rod (12) is threadedly connected to the inner side of the sleeve (13), and the rotating collar (43) is sleeved on the sleeve (13).

5. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 4, characterized in that: A bearing is provided between the rotating collar (43) and the sleeve (13).

6. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 2, characterized in that: There are a plurality of rotating collars (43), and the plurality of rotating collars (43) are arranged at intervals from top to bottom.

7. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 1, characterized in that: The mounting mechanism (2) comprises a connecting block (21) mounted on one side of the bottom of the drone (1); the bottom of the connecting block (21) is connected to an upper connecting frame (22); the bottom of the upper connecting frame (22) is provided with a lower connecting frame (23); a buffer ball (24) is connected between the lower connecting frame (23) and the upper connecting frame (22); and the tilt camera (3) is mounted on the lower connecting frame (23).

8. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 7, characterized in that: A first adjusting motor (25) is connected to the lower connecting frame (23); an output shaft of the first adjusting motor (25) is connected to a connecting bracket (26); a second adjusting motor (27) is arranged on one side of a lower portion of the connecting bracket (26); an output shaft of the second adjusting motor (27) is connected to one side of the tilting camera (3).

9. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 8, characterized in that: The output shaft of the first adjusting motor (25) and the output shaft of the second adjusting motor (27) are perpendicular to each other.

10. The three-dimensional laser scanning device for monitoring slopes in open pits according to claim 7, characterized in that: The lower connecting frame (23) is connected to a fixing rod (10), the fixing rod (10) passes through the buffer ball (24) and the upper connecting frame (22), and a fixing nut (11) is screwed onto the fixing rod (10).

Images