A water conservancy project topographic survey device

Abstract

The present invention discloses a water conservancy project topographic survey device, comprising: a panoramic camera for shooting images in a survey hole, an image analysis processing unit connected to the panoramic camera via a cable, a control unit connected to the panoramic camera and the image processing unit via a cable, a wire rack for controlling the control unit to retract and release wires, a compensation imaging auxiliary component, which is arranged on the panoramic camera and electrically connected to the control unit; when the image shot by the panoramic camera is not clear, the image analysis processing unit processes and feeds back the result to the control unit, the control unit controls the wire rack to stop releasing wires and controls the compensation imaging auxiliary component to clean the glass shield of the panoramic camera, and then the control unit controls the wire rack to retract wires, and the panoramic camera re-shoots and captures images of the previous shooting node and then continues to perform surveying and capturing images normally. The invention solves the problem in the prior art that the drilling image shot is not clear, resulting in large errors in the survey results.

Description

Technical Field

[0001] The invention belongs to the technical field of topographic survey equipment, and in particular relates to a topographic survey device for a water conservancy project. Background Art

[0002] The topographic survey of water conservancy projects requires the measurement of geological and geomorphological characteristic data, such as rock type, soil texture, stratum structure, etc. These data are helpful in evaluating the geological conditions and stability of water conservancy project construction. The above data are measured by drilling holes at the survey location and then using a borehole camera. In this way, the structure of the stratum, the type and distribution of rocks are observed, providing intuitive data for geological and geomorphological research. However, in the actual application of the borehole camera, due to the harsh environment in the survey borehole, when the dust, water vapor, and mud in the survey borehole adhere to the glass cover of the camera of the borehole camera, it will interfere with the propagation of light and affect the imaging of the camera, causing blurred images. In addition, the borehole camera is directly lowered into the survey borehole. As the depth of the instrument increases, the length of the cable connecting the borehole camera increases. Therefore, the cable drives the borehole camera to rotate, making the image taken by the camera incoherent and distorted. Therefore, the survey photos after image processing are distorted, which increases the difficulty of survey image processing and increases the error of the survey results. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of unclear images taken by a borehole camera when drilling to explore the stratum structure in the prior art, and to propose a water conservancy engineering topographic surveying device.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a water conservancy project topographic survey device, comprising a panoramic camera for shooting images in a survey hole; an image analysis and processing unit, connected to the panoramic camera through a cable, and analyzing and processing the images shot by the panoramic camera; a control unit, the control unit is connected to the panoramic camera and the image processing unit through a cable; a wire rack, the cable is wound on the wire rack, and a drive motor for winding and releasing the wire is arranged on the wire rack, the drive motor is electrically connected to the control unit, the control unit controls the drive motor to rotate forward and reverse, and controls the wire rack to wind up or release the wire; a compensation imaging auxiliary component is arranged on the panoramic camera and electrically connected to the control unit; when the image shot by the panoramic camera is not clear, the result is fed back to the control unit after being processed by the image analysis and processing unit, the control unit controls the wire rack to stop paying out the wire and controls the compensation imaging auxiliary component to clean the glass cover of the panoramic camera, and then the control unit controls the wire rack to wind up the wire, the panoramic camera re-shoots and captures the last shooting node and then continues to conduct normal surveying, capturing and shooting, and re-shooting the unclear area to obtain a clear layer structure, and at the same time, the layer structure of the survey position is obtained in combination with the depth of the cable lowering to collect measurement data.

[0005] As a further description of the above technical solution: the compensation imaging auxiliary component includes a driving unit and a mounting sleeve, the mounting sleeve is fixed on the panoramic camera, a connecting arm is slidably arranged on the mounting sleeve, at least two connecting arms are arranged at equal intervals around the circumference of the mounting sleeve, an arc bar is arranged at the lower end of the connecting arm, the arc bar is adapted to the glass shield of the panoramic camera, and the driving unit is used to drive the connecting arm to slide along the mounting sleeve. The arc bar in contact with the glass shield cleans its surface.

[0006] As a further description of the above technical solution: the arc strip is spiral, a sponge strip is fixedly arranged on the inner side of the arc strip, and two adjacent arc strips partially overlap along the axis of the installation sleeve to ensure that no dead corners are missed during cleaning.

[0007] As a further description of the above technical solution: the driving part includes an electric push rod and a driving sleeve, the electric push rod is fixed on the panoramic camera, the driving sleeve is sleeved on the panoramic camera, the output end of the electric push rod is fixed to the upper end of the driving sleeve, and a switching assembly is arranged between the lower end of the driving sleeve and the connecting arm, and the switching assembly is used to drive the connecting arm to rotate around it.

[0008] As a further description of the above technical solution: the switching assembly includes a base, which is U-shaped, and is provided with a front connecting plate, a rear connecting plate and a fixed plate on the base, a toggle fork, a front limit rod and a rear limit rod are rotatably provided on the fixed plate, the front limit rod and the rear limit rod are symmetrically arranged about the rotation axis of the toggle fork, the front limit rod and the rear limit rod are used to limit the rotation angle of the toggle fork, a trigger rod is provided at the upper end of the toggle fork, an upper trigger block and a lower trigger block corresponding to the trigger rod are provided on the mounting sleeve, an adapter rod is provided at the lower end, a deflection rod is provided in the base, an adapter groove is opened on the deflection rod along its radial direction, the adapter groove corresponds to the adapter rod, and the deflection rod is provided with a plurality of adapter grooves. A connecting seat is fixedly provided at a section of the swing arm away from the adapter rod, the end of the connecting seat is set to a first arc surface, the inner bottom surface of the base is set to a second arc surface tangent to the first arc surface, a first spring is sleeved on the deflection rod, the first spring is located between the adapter rod and the connecting seat, the end of the connecting arm is rotatably set on the connecting seat, and a torsion spring is set at its rotating shaft, a vertical sliding groove corresponding to the connecting arm is opened on the mounting sleeve, a sliding rod is set on the rear connecting plate, the sliding rod is slidably set in the vertical sliding groove, a connecting rod is set on the front connecting plate, the connecting rod and the sliding rod are coaxially arranged, and the connecting rod is connected to the lower end of the driving sleeve.

[0009] As a further description of the above technical scheme: a rotating seat is rotatably arranged at the lower end of the driving sleeve, and the rotating seat rotates around the driving sleeve, and the connecting rod is slidably penetrated on the rotating seat, and a second spring is sleeved on the connecting rod, and the second spring is located between the rotating seat and the front connecting plate, and a spiral sliding groove is also provided on the mounting sleeve, and the lower end of the spiral sliding groove is connected with the lower end of the vertical sliding groove, and the upper end of the spiral sliding groove is connected with the upper end of another adjacent vertical sliding groove, and the groove depth of the vertical sliding groove gradually decreases from top to bottom, and there is a height difference in the groove depth between the lower end of the vertical sliding groove and the lower end of the spiral sliding groove at the connection point, and the groove depth of the spiral sliding groove gradually decreases from bottom to top, and there is a height difference in the groove depth between the upper end of the spiral sliding groove and the upper end of the vertical sliding groove at the connection point.

[0010] As a further description of the above technical solution: a limiting ring groove is provided on the outer side wall of the lower end of the driving sleeve, the rotating seat is adapted to be snapped on the lower end of the driving sleeve, and a guide screw is provided on the rotating seat, which is adapted to the limiting ring groove.

[0011] As a further description of the above technical solution: the installation sleeve is composed of at least two arc-shaped plates, and the arc-shaped plates are connected by locking rings arranged at both ends.

[0012] As a further description of the above technical solution: a throat clamp is fixedly installed on the upper end of the panoramic camera, and at least three telescopic support arms are evenly spaced around the circumference of the throat clamp. One end of the telescopic support arm is rotatably installed on the throat clamp and a torsion spring is installed at the rotating shaft, and a roller is installed at the other end.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] (1) When the device of the present application is used to survey the strata, a complete image of the survey borehole can be obtained, compensating for the problem of unclear images caused by transmission delays, camera stains, and water vapor. At the same time, the elastic support arm can make the focal length of the panoramic camera consistent, reduce the analysis pressure of the image analysis processing unit, and reduce the error of the output result.

[0015] (2) When cleaning the glass cover, the arc strip and sponge strip of the compensation imaging auxiliary component are cleaned in a unidirectional manner to avoid stains remaining on the surface of the glass cover when scraping back and forth. After scraping, they are moved away from the glass cover in a very short time and the stains attached to the arc strip and sponge strip are also thrown away. The stains are further thrown away during the rotating upward process.

[0016] (3) The overlapping arc strips and sponge strips make it possible to clean the surface of the glass cover without blind spots, thus achieving overall cleaning of the glass cover and avoiding the appearance of noise images during surveying and shooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the assembly structure of the panoramic camera, telescopic support arm, and compensation imaging auxiliary components of the present invention, in a normal surveying and using state;

[0019] Figure 3 It is a schematic diagram of the assembly structure of the panoramic camera, the telescopic support arm, and the compensation imaging auxiliary component of the present invention, wherein the driving sleeve is moved to the lowest position;

[0020] Figure 4 This is a schematic diagram of the initial state of the first stage of installing the sleeve and the compensation imaging auxiliary component of the present invention;

[0021] Figure 5 A schematic diagram of the state of the sleeve installation and compensation imaging auxiliary assembly at a certain moment during the first stage of the present invention;

[0022] Figure 6 A schematic diagram of the three-dimensional structure of the installation sleeve and the compensation imaging auxiliary assembly of the present invention at a certain moment during the first stage;

[0023] Figure 7 This is a schematic structural diagram of the initial state of the third stage of the installation sleeve and the compensation imaging auxiliary component of the present invention;

[0024] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0025] Fig. 9 This is an exploded view of the casing for this installation;

[0026] Fig.10 This is a schematic diagram of the structure of the switching component of the present invention;

[0027] Fig.11 It is a schematic diagram of the plane expansion of the curved plate of the present invention.

[0028] Legend: 1. Wire rack; 2. Cable; 3. Image analysis and processing unit; 4. Glass cover; 5. Main body; 6. Compensation image acquisition auxiliary component; 7. Mounting sleeve; 8. Hose clamp; 9. Drive sleeve; 10. Electric push rod; 11. Telescopic support arm; 12. Arc plate; 13. Locking ring; 14. Connecting arm; 15. Arc strip; 16. Sponge strip; 17. Switching component; 18. Base; 19. Front connecting plate; 20. Rear connecting plate; 21. Fixed plate; 22. Toggle fork ; 23. Front limit rod; 24. Rear limit rod; 25. Trigger rod; 26. Upper trigger block; 261. Bevel groove; 27. Lower trigger block; 271. Inclined surface; 28. Adapter rod; 29. ​​Deflection rod; 30. Adapter groove; 31. Connecting seat; 32. Second arc surface; 33. First spring; 34. Vertical sliding groove; 35. Spiral sliding groove; 36. Sliding rod; 37. Connecting rod; 38. Rotating seat; 39. Second spring; 40. Limit ring groove; 41. Guide screw. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-11 The present invention provides a technical solution for a water conservancy project topographic survey device:

[0031] A water conservancy project topographic survey device is used to accurately measure the geological and geomorphological characteristic data of rock type, soil texture and stratum structure. It includes a panoramic camera, which is lowered into a survey borehole to shoot images in the survey borehole; an image analysis and processing unit 3, which is connected to the panoramic camera through a cable 2 and analyzes and processes the images shot by the panoramic camera; a control unit, which is connected to the panoramic camera and the image processing unit through a cable 2; a wire rack 1, on which a cable 2 is wound, and a driving motor for winding and releasing a wire is arranged on the wire rack 1, which is electrically connected to the control unit, and the control unit controls the forward and reverse rotation of the driving motor to control the wire rack 1 to wind up or release the wire 2; a compensation image taking auxiliary component 6, which is arranged on the panoramic camera and electrically connected to the control unit; when the image shot by the panoramic camera is not clear, the image analysis and processing unit 3 processes the result and feeds it back to the control unit, and the control unit controls the wire rack 1 to stop laying out the wire and controls the compensation image taking auxiliary component 6 to clean the glass cover 4 of the panoramic camera, and then the control unit controls the wire rack 1 to wind up the wire, and the panoramic camera re-shoots and takes images of the previous shooting node and then continues to perform surveying and shooting normally.

[0032] The panoramic camera of this embodiment is composed of a main body 5 and a camera head, and a glass cover 4 for protection is arranged on the outside of the camera head.

[0033] The compensation imaging auxiliary component 6 includes a driving part and a mounting sleeve 7. The driving part includes an electric push rod 10 and a driving sleeve 9. A throat hoop 8 is fixedly arranged at the upper end of the main body 5 of the panoramic camera. The tail end of the electric push rod 10 is fixed to the throat hoop 8 by bolts. The driving sleeve 9 is sleeved on the main body 5 of the panoramic camera. The output end of the electric push rod 10 is fixed to the upper end of the driving sleeve 9. The controller controls the electric push rod 10. When the output end of the electric push rod 10 is extended, the driving sleeve 9 is pushed to move downward. When the output end of the electric push rod 10 is retracted, the driving sleeve 9 is pulled to move upward. At least three telescopic support arms 11 are arranged at equal intervals around the throat hoop 8. One end of the telescopic support arm 11 is rotatably arranged on the throat hoop 8 and a torsion spring is arranged at the rotating shaft, and a roller is arranged at the other end. In this embodiment, three telescopic support arms 11 are arranged at equal intervals around the circumference. Under the action of the three telescopic support arms 11, the main body 5 of the panoramic camera remains coaxial with the borehole when moving in the borehole.

[0034] The mounting sleeve 7 is sleeved and fixed on the main body 5 of the panoramic camera. The mounting sleeve 7 is composed of at least two arc plates 12, and the arc plates are connected by locking rings 13 arranged at both ends. In this embodiment, the mounting sleeve 7 is formed by splicing two arc plates 12, and the two arc plates 12 are threadedly connected to the locking ring 13, so that the mounting sleeve 7 is fixed on the main body 5 as a whole.

[0035] A connecting arm 14 is slidably provided on the mounting sleeve 7. At least two connecting arms 14 are provided at equal intervals around the circumference of the mounting sleeve 7. An arc bar 15 is provided at the lower end of the connecting arm 14. The arc bar 15 is adapted to the glass shield 4 of the panoramic camera. The arc bar 15 is spiral-shaped. A sponge bar 16 is fixedly provided on the inner side of the arc bar 15. Two adjacent arc bars 15 partially overlap along the axis of the mounting sleeve 7. In this embodiment, four connecting arms 14 are provided, and four corresponding arc bars 15 are also provided. The driving unit is used to drive the connecting arm 14 to slide along the mounting sleeve 7.

[0036] A switching assembly 17 is provided between the lower end of the driving sleeve 9 and the connecting arm 14 , and the switching assembly 17 is used to drive the connecting arm 14 to rotate around it.

[0037] The switching assembly 17 includes a base 18, which is U-shaped. A front connecting plate 19, a rear connecting plate 20 and a fixed plate 21 are provided on the base 18. A toggle fork 22, a front limit rod 23 and a rear limit rod 24 are rotatably provided on the fixed plate 21. The front limit rod 23 and the rear limit rod 24 are symmetrically arranged about the rotation axis of the toggle fork 22. The front limit rod 23 and the rear limit rod 24 are used to limit the rotation angle of the toggle fork 22. A trigger rod 25 is provided at the upper end of the toggle fork 22. An upper trigger block 26 and a lower trigger block 27 corresponding to the trigger rod 25 are provided on the mounting sleeve 7. An adapter rod 28 is provided at the lower end. A deflection rod 29 is provided in the base 18. An adapter groove 30 is opened on the deflection rod 29 along its radial direction. The adapter groove 30 corresponds to the adapter rod 28. A connecting seat 31 is fixedly provided at a section of the deflection rod 29 away from the adapter rod 28. The end of the connecting seat 31 is set as a first arc surface, and the inner bottom surface of the base 18 is provided with a second arc surface 32 tangent to the first arc surface. The first spring 33 is sleeved on the deflection rod 29, and the first spring 33 is located between the adapter rod 28 and the connecting seat 31. The end of the connecting arm 14 is rotatably set on the connecting seat 31, and a torsion spring is set at its rotation axis. The mounting sleeve 7 is provided with vertical sliding grooves 34 and spiral sliding grooves 35 corresponding to the connecting arms 14. In this embodiment, four connecting arms 14 are provided, and four vertical sliding grooves 34 and four spiral sliding grooves 35 are correspondingly provided, and are arranged at equal intervals on the circumferential side of the mounting sleeve 7. Two adjacent vertical sliding grooves 34 are connected by a spiral sliding groove 35, or two adjacent spiral sliding grooves 35 are connected by a vertical sliding groove 34. The lower end of the spiral sliding groove 35 is connected to the lower end of the vertical sliding groove 34, and the upper end of the spiral sliding groove 35 is connected to the upper end of another adjacent vertical sliding groove 34. The groove depth of the vertical sliding groove 34 gradually decreases from top to bottom, and there is a height difference between the groove depths of the lower end of the vertical sliding groove 34 and the lower end of the spiral sliding groove 35 at the connection point. The groove depth of the spiral sliding groove 35 gradually decreases from bottom to top, and there is a height difference between the groove depths of the upper end of the spiral sliding groove 35 and the upper end of the vertical sliding groove 34 at the connection point.

[0038] The rear connecting plate 20 is provided with a sliding rod 36, which is slidably arranged in the vertical sliding groove 34 and the spiral sliding groove 35. The front connecting plate 19 is provided with a connecting rod 37, which is coaxially arranged with the sliding rod 36 and connected to the lower end of the driving sleeve 9. The lower end of the driving sleeve 9 is rotatably provided with a rotating seat 38, which rotates around the driving sleeve 9. The connecting rod 37 is slidably penetrated on the rotating seat 38, and a second spring 39 is sleeved on the connecting rod 37, and the second spring 39 is located between the rotating seat 38 and the front connecting plate 19. The outer side wall of the lower end of the driving sleeve 9 is provided with a limiting ring groove 40, and the rotating seat 38 is adapted to be buckled on the lower end of the driving sleeve 9. The rotating seat 38 is provided with a guide screw 41, and the guide screw 41 is adapted to the limiting ring groove 40.

[0039] Working principle: In the normal survey and imaging state, a survey hole is drilled in the survey and measurement area, and then the panoramic camera is lowered into the survey hole. When there is no pollutant or water vapor in the survey hole, the panoramic camera will not be affected during shooting. Under the action of the control unit, the wire rack 1 drives the cable 2 at a constant speed to release the wire, and the panoramic camera moves at a constant speed in the borehole to shoot the inside of the borehole. The image is transmitted to the image analysis and processing unit 3 via the cable 2, and the final output result includes specific photos of the underground depth and layer structure.

[0040] In the above normal state, the telescopic support arm 11 is supported on the inner wall of the borehole. Figure 2 and Figure 5 As shown, the output end of the electric push rod 10 is not extended, the rotating seat 38 is located at the uppermost end, and the arc strip 15 and the sponge strip 16 are pressed against the glass cover 4. When the glass cover 4 is contaminated during the shooting process, the shot image is unclear and stains appear. After analysis by the image analysis processing unit 3, the image is fed back to the control unit. The control unit controls the output end of the electric push rod 10 to extend and then retract. During this process, the control unit controls the wire rack 1 to stop paying out the wire and then rewind the wire. During this process, the compensation imaging auxiliary component 6 completes the cleaning of the glass cover 4. The purpose of rewinding the wire in this process is to make the panoramic camera return to the node closest to normal shooting, so as to achieve compensatory shooting for the unclear shooting period, thereby replacing and covering the problematic shooting area, and obtaining accurate, complete and error-free data through reshooting.

[0041] When cleaning the glass shield 4, it is divided into four stages: the driving sleeve 9 moves downward under the pushing action of the electric push rod 10, driving the rotating seat 38 to move downward, including the first stage and the second stage; the driving sleeve 9 moves upward from the lowest position under the pulling action of the electric push rod 10, driving the rotating seat 38 to move upward, including the third stage and the fourth stage.

[0042] In the first stage, the sliding rod 36 slides from top to bottom in the vertical sliding groove 34. During the sliding process, the connecting arm 14 and the arc strip 15 and the sponge strip 16 also slide from top to bottom to clean the surface of the glass cover 4. In this process, although the switching assembly 17 moves away from the mounting sleeve 7 due to the change in the depth of the vertical sliding groove 34, the arc strip 15 and the sponge strip 16 are still pressed on the surface of the glass cover under the action of the torsion spring at the rotating shaft of the connecting arm 14; during the first stage, the trigger rod 25 set at the upper end of the shift fork 22 is close to the mounting sleeve 7.

[0043] The start time of the second stage is when the switching assembly 17 moves to the point where its trigger rod 25 contacts the lower trigger block 27. The lower trigger block 27 is provided with an inclined surface 271 inclined upward. After the trigger rod 25 contacts the inclined surface 271, as the switching assembly 17 continues to move, the trigger rod 25 drives the shift fork 22 to rotate along the rotation axis of the shift fork 22 under the action of the inclined surface 271, so that the trigger rod 25 moves away from the mounting sleeve 7. During this process, the shift fork 22 drives the deflection rod to rotate around the connecting seat 31 at the end of the deflection rod, and the adapter rod 28 slides along the adapter groove 30, and the first spring 33 is compressed; when the trigger rod 25 moves to the farthest position from the mounting sleeve 7, the adapter rod 28 reaches the switching point, and under the action of the second spring 39, the connecting seat 31 at the end of the deflection rod moves along the second arc surface 32 to the movement of the base 18 away from the mounting sleeve 7, and the second spring 39 returns to its initial state. In the above process, the position of the connecting seat 31 is switched, so that the arc strip 15 and the sponge strip 16 at the end of the connecting arm 14 move to a position away from the glass cover 4 and do not contact the glass cover 4. This process is instantaneous, so the stains on the sponge strip 16 are also thrown away. At the end of the second stage, the driving sleeve 9 moves to the lowest state, and the sliding rod 36 is located in the spiral sliding groove 35.

[0044] The third stage begins with the drive sleeve 9 moving upward, the switching assembly 17 moves upward along the spiral sliding groove 35, and the sliding rod 36 moves upward along the spiral groove. During this process, the rotating seat 38 rotates along the limiting ring groove 40 set in the lower section of the drive sleeve 9, and the sponge strip 16 rotates away from the mounting sleeve 7 to shake off surface stains.

[0045] The opening time of the fourth stage is when the trigger rod 25 contacts the upper trigger block 26, and the upper trigger block 26 is provided with an inclined groove 261 with a gradually changing opening. As the trigger rod 25 contacts the inclined groove 261, the trigger rod 25 moves toward the mounting sleeve 7 until the switching assembly 17 returns to the state of the first stage, at which time the arc strip 15 and the sponge strip 16 contact the glass arc plate again. The end position of the fourth stage is the start position of the first stage.

[0046] The above four stages complete the cleaning of the surface of the glass arc plate.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and all of these should be covered by the protection scope of the present invention.

Claims

1. A water conservancy project topographic survey device, characterized in that: The invention comprises a panoramic camera for photographing images in a survey hole; an image analysis and processing unit (3) connected to the panoramic camera via a cable (2) for analyzing and processing the images photographed by the panoramic camera; a control unit, the control unit being connected to the panoramic camera and the image processing unit via a cable (2); a wire rack (1), the cable (2) being wound on the wire rack (1), the wire rack (1) being provided with a drive motor for winding and releasing the wire, the drive motor being electrically connected to the control unit, the control unit controlling the drive motor to rotate forward and reverse, and controlling the wire rack (1) to wind up the wire (2) or release the wire (2); a compensation imaging auxiliary component (6) arranged on the panoramic camera and electrically connected to the control unit; when the image photographed by the panoramic camera is not clear, the image analysis and processing unit (3) processes the result and feeds it back to the control unit, the control unit controlling the wire rack (1) to stop releasing the wire and controlling the compensation imaging auxiliary component (6) to clean the glass cover (4) of the panoramic camera, and then the control unit controlling the wire rack (1) to wind up the wire, the panoramic camera re-photographs and captures the image of the last captured node and then continues to perform surveying and capturing images normally; The compensation imaging auxiliary component (6) comprises a driving unit and a mounting sleeve (7), wherein the mounting sleeve (7) is sleeved and fixed on the panoramic camera, a connecting arm (14) is slidably arranged on the mounting sleeve (7), at least two connecting arms (14) are arranged at equal intervals around the circumference of the mounting sleeve (7), an arc bar (15) is arranged at the lower end of the connecting arm (14), the arc bar (15) is adapted to the glass shield (4) of the panoramic camera, and the driving unit is used to drive the connecting arm (14) to slide along the mounting sleeve (7); The driving unit comprises an electric push rod (10) and a driving sleeve (9), the electric push rod (10) being fixed on the panoramic camera, the driving sleeve (9) being sleeved on the panoramic camera, the output end of the electric push rod (10) being fixed to the upper end of the driving sleeve (9), a switching assembly (17) being provided between the lower end of the driving sleeve (9) and the connecting arm (14), the switching assembly (17) being used to drive the connecting arm (14) to rotate around the switching assembly (17); The switching assembly (17) comprises a base (18), the base (18) is U-shaped, a front connecting plate (19), a rear connecting plate (20) and a fixed plate (21) are arranged on the base (18), a shifting fork (22), a front limit rod (23) and a rear limit rod (24) are rotatably arranged on the fixed plate (21), the front limit rod (23) and the rear limit rod (24) are symmetrically arranged about the rotation axis of the shifting fork (22), and the front limit rod (23) and the rear limit rod (24) are symmetrically arranged about the rotation axis of the shifting fork (22). 4) for limiting the rotation angle of the toggle fork (22), the toggle fork (22) is provided with a trigger rod (25) at the upper end, the mounting sleeve (7) is provided with an upper trigger block (26) and a lower trigger block (27) corresponding to the trigger rod (25), the lower end is provided with an adapter rod (28), the base (18) is provided with a deflection rod (29), the deflection rod (29) is provided with an adapter groove (30) along its radial direction, the adapter groove (30) corresponds to the adapter rod (28), the deflection rod (29) is provided with an adapter groove (30) corresponding to the adapter rod (28), A connecting seat (31) is fixedly provided at a section of the rod (29) away from the adapting rod (28); an end of the connecting seat (31) is provided with a first arc surface; an inner bottom surface of the base (18) is provided with a second arc surface (32) tangent to the first arc surface; a first spring (33) is sleeved on the deflection rod (29); the first spring (33) is located between the adapting rod (28) and the connecting seat (31); an end of the connecting arm (14) is rotatably provided on the connecting seat (31); and A torsion spring is arranged at the rotation axis, a vertical sliding groove (34) corresponding to the connecting arm (14) is opened on the mounting sleeve (7), a sliding rod (36) is arranged on the rear connecting plate (20), and the sliding rod (36) is slidably arranged in the vertical sliding groove (34), and a connecting rod (37) is arranged on the front connecting plate (19), the connecting rod (37) and the sliding rod (36) are coaxially arranged, and the connecting rod (37) is connected to the lower end of the driving sleeve (9).

2. A water conservancy project topographic surveying device according to claim 1, characterized in that: The arc strip (15) is spiral-shaped, a sponge strip (16) is fixedly arranged on the inner side of the arc strip (15), and two adjacent arc strips (15) partially overlap along the axis of the installation sleeve (7).

3. A water conservancy project topographic surveying device according to claim 1, characterized in that: A rotating seat (38) is rotatably provided at the lower end of the driving sleeve (9), and the rotating seat (38) rotates around the driving sleeve (9). The connecting rod (37) is slidably penetrated on the rotating seat (38), and a second spring (39) is sleeved on the connecting rod (37). The second spring (39) is located between the rotating seat (38) and the front connecting plate (19). The mounting sleeve (7) is also provided with a spiral sliding groove (35), and the lower end of the spiral sliding groove (35) is connected to the vertical sliding groove (34). ), the upper end of the spiral sliding groove (35) is connected to the upper end of another adjacent vertical sliding groove (34), the groove depth of the vertical sliding groove (34) gradually decreases from top to bottom, and there is a height difference between the groove depths of the lower end of the vertical sliding groove (34) and the lower end of the spiral sliding groove (35) at the point where the two are connected, the groove depth of the spiral sliding groove (35) gradually decreases from bottom to top, and there is a height difference between the groove depths of the upper end of the spiral sliding groove (35) and the upper end of the vertical sliding groove (34) at the point where the two are connected.

4. A water conservancy project topographic surveying device according to claim 3, characterized in that: A limiting annular groove (40) is provided on the outer side wall of the lower end of the driving sleeve (9); the rotating seat (38) is adapted to be snapped onto the lower end of the driving sleeve (9); a guide screw (41) is provided on the rotating seat (38); the guide screw (41) is adapted to be fitted into the limiting annular groove (40).

5. A water conservancy project topographic surveying device according to claim 1, characterized in that: The mounting sleeve (7) is composed of at least two arc-shaped plates (12), and the arc-shaped plates are connected via locking rings (13) arranged at both ends.

6. A water conservancy project topographic survey device according to claim 1, characterized in that: A throat hoop (8) is fixedly provided at the upper end of the panoramic camera, and at least three telescopic support arms (11) are provided at equal intervals around the circumference of the throat hoop (8). One end of the telescopic support arm (11) is rotatably provided on the throat hoop (8) and a torsion spring is provided at the rotation axis, and a roller is provided at the other end.

Images