A slope deformation detection device based on small unmanned aerial vehicle remote sensing

Abstract

The present invention provides a slope deformation detection device based on small unmanned aerial vehicle remote sensing. The detection device includes a slope to be detected and a movable detection mechanism. A plurality of installation bases are arranged along the slope surface on the slope to be detected, and a fixed detection mechanism is arranged on the installation bases. The fixed detection mechanism includes a fixing plate which is fixed on the installation base. The upper end of the fixing plate is fixedly connected with a support column, and the upper end of the support column is rotatably connected with a rotating plate. The upper end of the rotating plate is hinged with a plate to be detected through a bolt. A movable detection mechanism is arranged opposite to the slope. A vibration measuring instrument is arranged in the fixed detection mechanism and is used in cooperation with a detection needle to monitor the position of the installation base in real time, and assist the movable detection mechanism to detect the slope deformation. The detection data is transmitted to an information collection platform through a wireless signal transmission mechanism, and the movable detection mechanism and the fixed detection mechanism are used to collect slope image information and relevant measurement data.

Description

Technical Field

[0001] The present invention relates to the technical field of slope deformation detection equipment, and particularly relates to a slope deformation detection device based on small unmanned aerial vehicle remote sensing. Background Art

[0002] A slope refers to a slope with a certain gradient made on both sides of a roadbed to ensure the stability of the roadbed. Classified by stratum lithology, it can be divided into soil slopes and rock slopes. There are many factors affecting the stability of soil slopes, specifically including the type and properties of the rock and soil masses forming the slope, the geological structure of the slope, the slope morphology, groundwater, vibration effects, climatic conditions, weathering effects, slope vegetation, human engineering activities, etc. In order to ensure the safety of engineering construction and operation, it is necessary to detect the deformation of soil slopes, so as to maintain the soil slopes in a timely manner and prevent landslides on the soil slopes.

[0003] For the detection of soil slope deformation, it is necessary to regularly measure the slope of the slope and make comparisons to obtain the deformation results of the slope. When measuring the slope of the slope each time, using the angle between the slope surface and the vertical direction to obtain the angle of the slope can make the measurement results more accurate and comparable. Generally, the existing method uses manual photography for collection and comparison, and cooperates with detection devices on the slope for monitoring, so as to achieve the purpose of slope deformation detection. However, the existing manual information collection not only increases the labor intensity of workers for large-area slopes, but also has a long collection time and low measurement efficiency. Summary of the Invention

[0004] In order to solve the problems in the background art, the present invention provides a slope deformation detection device based on small unmanned aerial vehicle remote sensing. The detection device uses a movable detection mechanism and a fixed detection mechanism to collect slope image information and measure relevant data, thereby solving the problems of high labor intensity, long collection time, and low measurement efficiency of the existing manual information collection for large-area slopes.

[0005] To achieve the above object, the present invention provides a slope deformation detection device based on small unmanned aerial vehicle remote sensing, including a slope to be detected and a movable detection mechanism. A plurality of installation bases are arranged along the slope surface on the slope to be detected, and a fixed detection mechanism is arranged on the installation bases;

[0006] The fixed detection mechanism includes a fixed plate and a plate to be measured. The fixed plate is fixed on the installation base. A plurality of detection needles are arranged at the lower end of the fixed plate, and the lower ends of the detection needles extend into the slope to be detected. A support column, a fixed controller, a vibration meter, and a wireless signal transmission mechanism are arranged on the fixed plate. The upper end of the support column is rotatably connected to a rotating plate. The plate to be measured is hinged to the rotating plate through a bolt. The upper end of the rotating plate is fixedly connected to a support plate. A warning light and a secondary positioning sensor are arranged on the upper end of the support plate;

[0007] The activity detection mechanism includes a drone body. A gimbal is provided at the lower end of the drone body. A camera is provided at one end of the gimbal away from the drone body. A main positioning sensor is provided on the drone body. A laser rangefinder is provided above the drone body. The laser rangefinder is used in cooperation with the test board to measure the distance between the drone body and the fixed detection mechanism.

[0008] A preferred technical solution of the present invention: The test board is obliquely connected to the rotating board. The front part is hinged to the rotating board through a bolt hinge. A test board adjustment mechanism is provided at the rear side. The test board adjustment mechanism includes an inclination adjustment motor, a first adjustment screw rod, and an inclination adjustment rod. The inclination adjustment motor is fixed on the rotating board, and its output end faces upward. The first adjustment screw rod is fixedly connected to the output end of the inclination adjustment motor. One end of the inclination adjustment rod is threadedly connected to the first adjustment screw rod, and the other end is hinged with an inclination adjustment block through a bolt. The inclination adjustment block is slidably connected to the bottom surface of the test board through a limiting chute; The support plate is connected to the rear side of the rotating board, and the upper end of the first adjustment screw rod is rotatably connected to the support plate.

[0009] A preferred technical solution of the present invention: A detector adjustment mechanism is provided at the rear side of the laser detector. The detector adjustment mechanism includes a door frame-shaped support frame, a horizontal adjustment screw rod, and a vertical adjustment screw rod. The support frame is fixed to the upper end of the drone body. The horizontal adjustment screw rod is horizontally placed in the support frame. One end of it is rotatably connected to the inner wall of the side plate of the support frame. A moving motor is fixedly installed on the outer wall of the other side of the support frame. The output end of the moving motor is fixedly connected to the horizontal adjustment screw rod. A moving block is threadedly connected to the horizontal adjustment screw rod. The lower end of the moving block is fixedly connected to an angle adjustment motor. The output end of the angle adjustment motor is connected to the vertical adjustment screw rod. The lower end of the vertical adjustment screw rod is rotatably connected to a limiting plate. The lower end of the limiting plate is slidably connected to the shell of the drone body through a limiting chute; The laser detector is threadedly connected to the vertical adjustment screw rod through an auxiliary block.

[0010] A preferred technical solution of the present invention: An installation groove is opened at the upper end of the support column. The installation groove is located below the rotating board. The inner wall of the lower side of the installation groove is fixedly connected with a rotating motor. The output end of the rotating motor is fixedly connected with a driving gear. The lower end of the rotating board is fixedly connected with an internal gear ring. The lower end of the internal gear ring extends into the installation groove. The driving gear meshes with the inner side end of the internal gear ring. The rotation of the rotating board is controlled by the rotating motor and the driving gear.

[0011] A preferred technical solution of the present invention: The support plate is a T-shaped plate. The lower end of the support plate is fixed on the rotating board. The warning light and the secondary positioning sensor are both installed on the horizontal plate at the upper part of the support plate.

[0012] A better technical solution of the present invention is as follows: the lower end of the laser rangefinder is fixedly connected to a connecting frame, the inner side of the connecting frame is slidably connected to a connecting block, the lower end of the connecting block is connected to an auxiliary rod through a universal joint, and the lower end of the auxiliary rod is fixed to the upper top of the drone body.

[0013] The preferred technical solution of the present invention is that the upper part of the moving block is slidably connected to the upper inner wall of the support frame through a limiting sliding groove.

[0014] A better technical solution of the present invention: a limiting rod is arranged on the inner side of the connecting frame, and the front and rear ends of the limiting rod are respectively fixedly connected to the front and rear inner walls of the limiting frame, the limiting rod passes through the connecting block and is slidably connected to the connecting block, and two abutment springs are arranged on the limiting rod, and the two abutment springs are respectively located on the front and rear sides of the connecting block, and the adjacent ends of the two abutment springs are respectively fixedly connected to the front and rear side walls of the connecting block, and the ends of the two abutment springs far away from each other are respectively fixedly connected to the front and rear inner walls of the connecting frame.

[0015] Compared with the related art, the slope deformation detection device based on small UAV remote sensing provided by the present invention has the following beneficial effects:

[0016] 1. The slope deformation detection device of the present invention is provided with a mounting base on the slope, and a fixed detection mechanism is provided on the mounting base, and a movable detection mechanism is provided opposite to the slope, and a vibrometer is provided in the fixed detection mechanism, which is used in conjunction with a detection needle to monitor the position of the mounting base in real time, and assists the movable detection mechanism to detect the deformation of the slope. The detection data is transmitted to the information collection platform through a wireless signal transmission mechanism, and the movable detection mechanism and the fixed detection mechanism are used to collect slope image information and measure related data, thereby solving the problem that the existing manual information collection for large-area slopes not only increases the workload of the staff, but also takes a long time to collect and has low measurement efficiency.

[0017] 2. The present invention is provided with a camera, a main positioning sensor and a laser rangefinder in the active detection mechanism, and utilizes the height detection sensor in the drone body to enable the drone to accurately operate at a fixed height position when in use, and uses the camera to collect images of the slope, and utilizes the main positioning sensor on the drone body and the auxiliary positioning sensor in the fixed detection mechanism to cooperate with each other to realize the position determination of the two devices, and then utilizes the laser rangefinder and the adjustment device on the plate to be tested to adjust the angle position of the laser rangefinder and the plate to be tested, realize the measurement of the position of the fixed detection mechanism, and utilizes the measurement data and the image to realize the detection of slope deformation, thereby improving the accuracy of detection.

[0018] 3. A warning light is provided in the fixed detection mechanism of the present invention, ensuring that when the movable detection mechanism conducts shooting detection at night, it is convenient to use the warning light to determine the position of the fixed detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the detection mode of the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the fixed detection mechanism of the present invention;

[0021] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the fixed detection mechanism of the present invention;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the movable detection mechanism of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the position adjustment of the laser rangefinder of the present invention;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the laser rangefinder of the present invention.

[0025] In the figure: 1. Slope to be detected; 2. Installation base; 3. Fixed detection mechanism; 4. Movable detection mechanism; 5. Fixed plate; 6. Support column; 7. Fixed controller; 8. Vibration meter; 9. Wireless signal transmission mechanism; 10. Detection needle; 11. Plate to be measured; 12. Installation groove; 13. Rotation motor; 14. Driving gear; 15. Internal gear ring; 16. Rotating plate; 17. Inclination adjustment motor; 18. First adjustment screw rod; 19. Support plate; 20. Warning light; 21. Secondary positioning sensor; 22. Inclination adjustment rod; 23. Inclination adjustment block; 24. Abuttment spring; 25. UAV main body; 26. Cloud platform; 27. Camera; 28. Main positioning sensor; 29. Support frame; 30. Moving motor; 31. Horizontal adjustment screw rod; 32. Moving block; 33. Angle adjustment motor; 34. Auxiliary block; 35. Limiting plate; 36. Laser rangefinder; 37. Connection frame; 38. Limiting rod; 39. Connection block; 40. Auxiliary rod; 41. Longitudinal adjustment screw rod. DETAILED DESCRIPTION OF THE INVENTION

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the invention product is usually placed during use, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0028] An embankment deformation detection device based on small unmanned aerial vehicle remote sensing provided by the embodiment is as Figure 1 shown, and includes an embankment 1 to be detected and a movable detection mechanism 4. A plurality of installation bases 2 are arranged along the slope surface on the embankment 1 to be detected, and a fixed detection mechanism 3 is arranged on the installation bases 2. As Figure 2 and Figure 3 shown, the fixed detection mechanism 3 includes a fixed plate 5, the fixed plate 5 is fixed on the installation base 2, a support column 6 is fixedly connected to the upper end of the fixed plate 5, the upper end of the support column 6 is rotatably connected to a rotating plate 16, a plate to be measured 11 is hinged to the upper end of the rotating plate 16 through a bolt, a fixed controller 7, a vibration measuring instrument 8 and a wireless signal transmission mechanism 9 are arranged on the fixed plate 5, a plurality of detection needles 10 are arranged at the lower end of the fixed plate 5, the lower ends of the detection needles 10 extend into the embankment 1 to be detected, a support plate 19 is fixedly connected to the upper end of the rotating plate 16, the support plate 19 is in a T shape, a warning lamp 20 and a secondary positioning sensor 21 are arranged on the transverse plate at the upper part of the support plate 19. By arranging the warning lamp 20, when the movable detection mechanism 4 performs shooting detection at night, it is convenient to use the warning lamp 20 to determine the position of the fixed detection mechanism 3.

[0029] An embankment deformation detection device based on small unmanned aerial vehicle remote sensing provided by the embodiment is as Figure 3As shown, an installation groove 12 is formed at the upper end of the support column 6. The installation groove 12 is located below the rotating plate 16. A rotating motor 13 is fixedly connected to the lower inner wall of the installation groove 12. The output end of the rotating motor 13 is fixedly connected with a driving gear 14. The lower end of the rotating plate 16 is fixedly connected with an internal gear ring 15. The lower end of the internal gear ring 15 extends into the installation groove 12. The driving gear 14 meshes with the inner side end of the internal gear ring 15. The test plate 11 is obliquely connected to the rotating plate 16. The front part is hinged to the rotating plate 16 through a pin hinge. A test plate adjusting mechanism is arranged at the rear side. The test plate adjusting mechanism includes an inclination adjusting motor 17, a first adjusting lead screw 18 and an inclination adjusting rod 22. The inclination adjusting motor 17 is fixed on the rotating plate 16, and its output end faces upward. The first adjusting lead screw 18 is fixedly connected to the output end of the inclination adjusting motor 17. One end of the inclination adjusting rod 22 is in threaded connection with the first adjusting lead screw 18, and the other end is hinged with an inclination adjusting block 23 through a pin. The inclination adjusting block 23 is slidably connected to the bottom surface of the test plate 11 through a limiting chute. The support plate 19 is connected to the rear side of the rotating plate 16. The upper end of the first adjusting lead screw 18 is rotatably connected to the support plate 19. By driving the first adjusting lead screw 18 to rotate with the inclination adjusting motor 17, the inclination adjusting rod 22 is driven to move in the up and down direction, and is used in cooperation with the inclination adjusting block 23 to adjust the angle of the test plate 11. By using the rotating motor 13, the driving gear 14 and the internal gear ring 15 in cooperation, the position of the test plate 11 on the rotating plate 16 is adjusted.

[0030] An embankment deformation detection device based on small unmanned aerial vehicle remote sensing provided by the embodiment is as Figure 4 and Figure 5As shown, the activity detection mechanism 4 includes a drone body 25. A gimbal 26 is provided at the lower end of the drone body 25. A camera 27 is provided at one end of the gimbal 26 away from the drone body 25. A main positioning sensor 28 is provided on the drone body 25. A laser rangefinder 36 is provided above the drone body 25. The laser rangefinder 36 is used in cooperation with the to-be-detected board 11 to measure the distance between the drone body 25 and the fixed detection mechanism 3. A support frame 29 is provided at the rear side of the laser detector. The support frame 29 is in the shape of a door frame and is fixed to the upper end of the drone body 25. A moving motor 30 is fixedly connected to the outer wall on the right side of the support frame 29. The output end of the moving motor 30 is fixedly connected to a horizontal adjustment lead screw 31. The left end of the horizontal adjustment lead screw 31 penetrates through the right side wall of the support frame 29 and is rotatably connected to the inner wall on the left side of the support frame 29. A moving block 32 is slidably connected to the upper inner wall of the support frame 29 through a limit chute. The horizontal adjustment lead screw 31 penetrates through the moving block 32 and is threadedly connected to the moving block 32. An angle adjustment motor 33 is fixedly connected to the lower end of the moving block 32. The output end of the angle adjustment motor 33 is fixedly connected to a vertical adjustment lead screw 41. The lower end of the vertical adjustment lead screw 41 is rotatably connected to a limit plate 35. The lower end of the limit plate 35 is slidably connected to the upper end of the drone body 25 through a limit chute. An auxiliary block 34 is threadedly connected to the vertical adjustment lead screw 41. The front end of the auxiliary block 34 is fixedly connected to the rear end of the laser rangefinder 36. A connecting frame 37 is fixedly connected to the lower end of the laser rangefinder 36. A connecting block 39 is slidably connected to the inside of the connecting frame 37. The lower end of the connecting block 39 is connected to an auxiliary rod 40 through a universal joint. The lower end of the auxiliary rod 40 is fixed to the upper end of the drone body 25. A limit rod 38 is provided inside the connecting frame 37. The front and rear ends of the limit rod 38 are respectively fixedly connected to the front and rear inner walls of the limit frame. The limit rod 38 penetrates through the connecting block 39 and is slidably connected to the connecting block 39. Two abutting springs 24 are provided on the limit rod 38. The two abutting springs 24 are respectively located on the front and rear sides of the connecting block 39. The adjacent ends of the two abutting springs 24 are respectively fixedly connected to the front and rear side walls of the connecting block 39. The mutually remote ends of the two abutting springs 24 are respectively fixedly connected to the front and rear inner walls of the connecting frame 37.

[0031] The present invention utilizes the cooperation of the mobile motor 30 and the lateral adjustment screw rod 31 and the cooperation of the angle adjustment motor 33 and the longitudinal adjustment screw rod 41 to adjust the position and angle of the laser rangefinder 36. When in use, the image of the slope is collected by the camera 27, and the main positioning sensor 28 on the drone body 25 and the auxiliary positioning sensor 21 in the fixed detection mechanism 3 are used in cooperation with each other to determine the positions of the two devices. Then, the laser rangefinder 36 and the adjustment device on the test plate 11 are used to adjust the angle position of the laser rangefinder 36 and the test plate 11, so as to measure the position of the fixed detection mechanism 3, and the measurement data and the image are used to detect the deformation of the slope, thereby improving the accuracy of the detection.

[0032] The working process of the present invention is as follows: a fixed detection mechanism 3 is arranged on the mounting base 2. When in use, the height detection sensor of the drone body 25 in the active detection mechanism 4 opposite to the slope 1 to be detected is used to make the drone accurately operate at a fixed height position when in use. The image of the slope is collected by the camera 27. The main positioning sensor 28 on the drone body 25 and the auxiliary positioning sensor 21 in the fixed detection mechanism 3 are used in coordination with each other to determine the positions of the two devices. Then, the laser rangefinder 36 and the adjustment device on the plate to be tested 11 are used to adjust the angle position of the laser rangefinder 36 and the plate to be tested 11, so as to measure the position of the fixed detection mechanism 3. The deformation of the slope is detected by combining the measurement data with the image, thereby improving the accuracy of the detection. In order to improve the accuracy of detection, a vibrometer 8 is provided in the fixed detection mechanism 3, and is used in conjunction with a detection needle 10 to monitor the position of the mounting base 2 in real time, and assist the active detection mechanism 4 to detect slope deformation. The detection data is transmitted to the information collection platform through a wireless signal transmission mechanism 9, and the active detection mechanism 4 and the fixed detection mechanism 3 are used to collect slope image information and measure related data, thereby solving the problem that the existing manual information collection for large-area slopes not only increases the workload of the staff, but also takes a long time to collect information and has low measurement efficiency. A warning light 20 is provided in the fixed detection mechanism 3 to ensure that when the active detection mechanism 4 performs shooting detection at night, the warning light 20 can be used to facilitate the determination of the position of the fixed detection mechanism 3.

[0033] The above is only one embodiment of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A slope deformation detection device based on small unmanned aerial vehicle remote sensing, comprising a slope to be detected (1) and a movable detection mechanism (4), characterized in that: On the slope (1) to be detected, a number of installation bases (2) are arranged along the slope surface, and a fixed detection mechanism (3) is arranged on each installation base (2); the fixed detection mechanism (3) includes a fixed plate (5) and a plate to be measured (11), the fixed plate (5) is fixed on the installation base (2), a number of detection needles (10) are arranged at the lower end of the fixed plate (5), the lower ends of the detection needles (10) extend into the slope (1) to be detected, a support column (6), a fixed controller (7), a vibration meter (8) and a wireless signal transmission mechanism (9) are arranged on the fixed plate (5), the upper end of the support column (6) is rotatably connected with a rotating plate (16), the plate to be measured (11) is hinged to the rotating plate (16) through a bolt, the upper end of the rotating plate (16) is fixedly connected with a support plate (19), a warning light (20) and a secondary positioning sensor (21) are arranged on the upper end of the support plate (19); the plate to be measured (11) is connected to the rotating plate (16) in an inclined shape, its front part is hinged to the rotating plate (16) through a bolt hinge, and a plate to be measured adjustment mechanism is arranged at the rear side, the plate to be measured adjustment mechanism includes an inclination adjustment motor (17), a first adjustment screw rod (18) and an inclination adjustment rod (22), the inclination adjustment motor (17) is fixed on the rotating plate (16), its output end faces upward, the first adjustment screw rod (18) is fixedly connected to the output end of the inclination adjustment motor (17), one end of the inclination adjustment rod (22) is threadedly connected to the first adjustment screw rod (18), and the other end is hinged with an inclination adjustment block (23) through a bolt, the inclination adjustment block (23) is slidably connected to the bottom surface of the plate to be measured (11) through a limit sliding groove; the support plate (19) is connected to the rear side of the rotating plate (16), and the upper end of the first adjustment screw rod (18) is rotatably connected to the support plate (19); The activity detection mechanism (4) includes a drone body (25). A gimbal (26) is provided at the lower end of the drone body (25). A camera (27) is provided at one end of the gimbal (26) away from the drone body (25). A main positioning sensor (28) is provided on the drone body (25). A laser rangefinder (36) is provided above the drone body (25). The laser rangefinder (36) is used in cooperation with the plate to be measured (11) to measure the distance between the drone body (25) and the fixed detection mechanism (3). A detector adjustment mechanism is provided at the rear of the laser rangefinder (36). The detector adjustment mechanism includes a door frame type support frame (29), a horizontal adjustment screw rod (31), and a vertical adjustment screw rod (41). The support frame (29) is fixed to the upper end of the drone body (25). The horizontal adjustment screw rod (31) is horizontally placed in the support frame (29). One end of it is rotatably connected to the inner wall of the side plate of the support frame (29). A moving motor (30) is fixedly installed on the outer wall of the other side of the support frame (29). The output end of the moving motor (30) is fixedly connected to the horizontal adjustment screw rod (31). A moving block (32) is threadedly connected to the horizontal adjustment screw rod (31). An angle adjustment motor (33) is fixedly connected to the lower end of the moving block (32). The output end of the angle adjustment motor (33) is connected to the vertical adjustment screw rod (41). The lower end of the vertical adjustment screw rod (41) is rotatably connected to a limit plate (35). The lower end of the limit plate (35) is slidably connected to the shell of the drone body (25) through a limit chute. The laser rangefinder (36) is threadedly connected to the vertical adjustment screw rod (41) through an auxiliary block (34). An installation groove (12) is provided at the upper end of the support column (6). The installation groove (12) is located below the rotating plate (16). A rotating motor (13) is fixedly connected to the inner wall of the lower side of the installation groove (12). The output end of the rotating motor (13) is fixedly connected to a driving gear (14). An internal gear ring (15) is fixedly connected to the lower end of the rotating plate (16). The lower end of the internal gear ring (15) extends into the installation groove (12). The driving gear (14) meshes with the inner side end of the internal gear ring (15). The rotating plate (16) is controlled to rotate by the rotating motor (13) and the driving gear (14).

2. The slope deformation detection device based on small unmanned aerial vehicle remote sensing according to claim 1, characterized in that: The support plate (19) is a T-shaped plate. The lower end of the support plate (19) is fixed to the rotating plate (16). A warning light (20) and a secondary positioning sensor (21) are both installed on the horizontal plate at the upper part of the support plate (19).

3. The slope deformation detection device based on small unmanned aerial vehicle remote sensing according to claim 1, characterized in that: A connection frame (37) is fixedly connected to the bottom of the laser rangefinder (36). A connection block (39) is slidably connected to the inside of the connection frame (37). The lower end of the connection block (39) is connected to an auxiliary rod (40) through a universal joint. The lower end of the auxiliary rod (40) is fixed to the upper top of the drone body (25).

4. The slope deformation detection device based on small unmanned aerial vehicle remote sensing according to claim 1, characterized in that: The upper part of the moving block (32) is slidably connected to the inner wall of the upper side of the support frame (29) through a limit chute.

5. A slope deformation detection device based on small unmanned aerial vehicle remote sensing according to claim 3, characterized in that: A limiting rod (38) is arranged inside the connecting frame (37). The front and rear ends of the limiting rod (38) are respectively fixedly connected with the inner walls of the front and rear sides of the connecting frame. The limiting rod (38) penetrates through the connecting block (39) and is slidably connected with the connecting block (39). Two abutting springs (24) are arranged on the limiting rod (38). The two abutting springs (24) are respectively located on the front and rear sides of the connecting block (39). The adjacent ends of the two abutting springs (24) are respectively fixedly connected with the inner walls of the front and rear sides of the connecting block (39). The mutually remote ends of the two abutting springs (24) are respectively fixedly connected with the inner walls of the front and rear sides of the connecting frame (37).

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