Wire tower deformation monitoring device

Abstract

The utility model belongs to the technical field of wire tower deformation monitoring, and particularly relates to a wire tower deformation monitoring device, which comprises an unmanned aerial vehicle, a camera and a data processing module, the camera is arranged on the unmanned aerial vehicle, and the data processing module performs three-dimensional modeling by utilizing a plurality of shot pictures to obtain position coordinates of a monitoring point. The device further comprises an identification mechanism installed on the electric wire tower. The identification mechanism comprises a target, a bearing plate and an installation mechanism. The target is horizontally arranged, two first identification areas and two second identification areas are symmetrically arranged on the upper side of the target, and the symmetry axes of the two first identification areas and the two second identification areas are perpendicular to each other; the bearing plate is fixedly connected to the bottom of the target; the mounting mechanism is arranged at the bottom of the bearing plate and used for fixing the bearing plate and the wire tower. According to the device, the camera can more easily and accurately find picture acquisition points at the same position on the electric wire tower in each inspection, the data reliability is higher, and convenience is provided for deformation evaluation of the electric wire tower.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wire tower deformation monitoring, and in particular relates to an electric wire tower deformation monitoring device. Background Art

[0002] Currently, the inspection of power towers mainly relies on manpower, which has a series of problems: huge workload, lack of effectiveness and continuity, and delayed analysis of monitoring data. Relying on manpower inspection, monitoring a large area of ​​power towers in a short period of time poses a huge challenge to the physical strength and energy of inspectors, and there may be safety hazards. The inability to quickly obtain monitoring data leads to a lag in subsequent analysis.

[0003] In order to solve the drawbacks of manual inspections, some researchers have tried to use drone oblique photogrammetry or airborne radar to model power towers. However, due to the structural characteristics of power towers such as hollowness and slenderness, it is difficult to effectively model them. Therefore, the credibility of the monitoring data obtained is low, resulting in the inability to timely detect and evaluate the deformation of power towers. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a deformation monitoring device for a power tower, which can make it easier for the camera to accurately find the image acquisition points at the same position on the power tower in each inspection, and the data reliability is higher, which facilitates the deformation assessment of the power tower.

[0005] The technical solution of the utility model is:

[0006] A deformation monitoring device for a power tower, comprising a drone, a camera and a data processing module, wherein the camera is mounted on the drone, the data processing module is wirelessly connected to the camera, and is used to receive images taken by the camera and perform three-dimensional modeling using multiple captured images to obtain the position coordinates of a monitoring point, and also comprises an identification mechanism mounted on the power tower for collecting camera images, wherein the identification mechanism comprises:

[0007] The target is arranged horizontally, and two first identification areas and two second identification areas are symmetrically arranged on the upper side of the target, and the symmetry axes of the two first identification areas and the two second identification areas are perpendicular, and the first identification areas and the second identification areas are used to provide two vertically distributed reference areas for the shooting pictures of the camera at the same tilt height;

[0008] Support plate; fixed to the bottom of the target;

[0009] The mounting mechanism is arranged at the bottom of the supporting plate, and is used to fix the supporting plate to the existing structure on the power tower.

[0010] Preferably, the mounting mechanism includes a central axis, a clamping plate, a fixing frame and a telescopic component, the outer side of the central axis is provided with an external thread, the upper end of the central axis is screwed to the screw hole on the supporting plate, and the lower end is used to be fixed to the power tower, there are two clamping plates, the two clamping plates are symmetrically arranged on both sides of the central axis, a fixing frame is arranged on the opposite sides of the two clamping plates, the fixing frame has a fixing part and a moving part, the fixing part of the fixing frame is fixedly connected to the supporting plate, and the moving part is fixedly connected to the clamping plate, the telescopic component is arranged between the central axis and the two fixing frames, the two moving ends of the telescopic component are respectively connected to a moving part of the fixing frame, and the telescopic component is used to adjust the distance between the two clamping plates.

[0011] Preferably, the telescopic component includes a plurality of connecting ropes and springs, and the connecting ropes and springs correspond one to one, one end of the spring is fixedly connected to the moving part of the fixed frame, and the other end is fixedly connected to the connecting rope, and the end of the connecting rope away from the spring is connected to the central axis.

[0012] Preferably, the telescopic component comprises an even number of connecting ropes and springs, and the numbers of the connecting ropes and springs on both sides of the central axis are equal.

[0013] Preferably, an inner thread sleeve is mounted on the central shaft, the inner thread sleeve is threadedly connected to the outer thread on the central shaft, an outer nut and a fixer are respectively mounted on the outer side of the inner thread sleeve, the fixer is rotatably connected to the inner thread sleeve, the outer nut is fixedly connected to the inner thread sleeve, a plurality of connecting ropes are fixed on the circumference of the fixer, and a limit assembly for limiting the movement of the fixer is provided on the central shaft.

[0014] Preferably, the limiting assembly includes a fixing rod and a positioning screw hole opened on the central axis, there are multiple positioning screw holes, and the multiple positioning screw holes are arranged at equal intervals along the axial direction of the central axis, and the fixing rod is inserted into the positioning screw hole close to the fixer to limit the fixer in the gap formed between the fixing rod and the outer nut.

[0015] Preferably, the target is a cuboid, and the first identification area and the second identification area are divided by two diagonal lines of the target.

[0016] Preferably, the fixing frame includes a stabilizing frame and a plurality of extension columns which are arranged one by one corresponding to the springs, the plurality of extension columns are inserted into the stabilizing frame at equal intervals, and the extension columns are slidably connected to the inner wall of the stabilizing frame, the upper side of the stabilizing frame is fixed to the supporting plate by bolts, one end of the extension column is fixedly connected to the splint, and the other end is fixedly connected to the corresponding spring.

[0017] Preferably, the stabilizing frame is a circular structure, and grooves are provided on two inner walls of the stabilizing frame corresponding to each of the extension columns, for limiting the movement of the extension columns perpendicular to the sliding direction.

[0018] Preferably, an air guide hood for cleaning dust on the target surface is provided on one side of the target, and the air guide hood is fixedly connected to the stabilizing frame, one end of the air guide hood is an air inlet, and the other end is an air outlet, the bottom wall of the air outlet is flush with the side of the target facing away from the supporting plate, and the air inlet of the air guide hood is larger than the air outlet.

[0019] Compared with the prior art, the utility model of a wire tower deformation monitoring device has the following beneficial effects:

[0020] The device utilizes the cooperation of the mounting mechanism and the supporting plate to fix the target at any position on the power tower without damaging the power tower, and then utilizes the target and the first identification area and the second identification area set on the target as reference objects for data collection, which can effectively amplify the characteristic points of the power tower, so that the camera can more easily and accurately find the same shooting position at different times when carried by the drone, the accuracy of picture collection is higher, the reliability of data is higher, and convenience is provided for the deformation assessment of the power tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A top view of a target in an embodiment of the utility model;

[0022] Figure 2 This is a front view of the target in the embodiment of the utility model;

[0023] Figure 3 A three-dimensional diagram of a target in an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the installation mechanism in the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the limit assembly in the embodiment of the utility model;

[0026] Figure 6 It is a schematic structural diagram of the air guide cover in the embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Target; 2. First identification area; 3. Second identification area; 4. Support plate; 5. Installation mechanism; 51. Central axis; 52. Clamp; 53. Fixing frame; 531. Stabilizing frame; 532. Extension column; 54. Telescopic component; 541. Connecting rope; 542. Spring; 6. Inner threaded sleeve; 7. Outer nut; 8. Fixer; 9. Limiting assembly; 91. Fixing rod; 92. Positioning screw hole; 10. Groove; 11. Air guide cover; 12. Air inlet; 13. Air outlet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] See also Figures 1 to 4 As shown, in order to enable the inspection of the drone to obtain more accurate monitoring data, the reliability of the data is higher, which provides convenience for the deformation assessment of the power tower. This embodiment provides a power tower deformation monitoring device, including a drone, a camera and a data processing module, the camera is installed on the drone, the data processing module is wirelessly connected to the camera, and is used to receive the pictures taken by the camera and use multiple shooting pictures to perform three-dimensional modeling to obtain the position coordinates of the monitoring point, and also includes an identification mechanism installed on the power tower for camera picture collection, the identification mechanism includes a target 1, a support plate 4 and a mounting mechanism 5; the target 1 is horizontally arranged, and two first identification areas 2 and two second identification areas 3 are symmetrically arranged on the upper side of the target 1, and the symmetry axes of the two first identification areas 2 and the two second identification areas 3 are vertical, and the target 1 is used to provide a specified position identification for the camera shooting; the support plate 4 is fixedly connected to the bottom of the target 1; the mounting mechanism 5 is arranged at the bottom of the support plate 4, and is used to fix the support plate 4 to the existing structure on the power tower.

[0033] See also Figure 1 and Figure 3As shown, specifically, the target 1 is a flat rectangular parallelepiped, and the first identification area 2 and the second identification area 3 are divided by two diagonal lines of the target 1. The first identification area 2 and the second identification area 3 are used to provide two vertically distributed reference areas for the shooting picture of the camera at the same tilt height. The target 1 is made of steel, with a thickness of 10mm, a length of 800mm, and a width of 600mm. The surfaces of the first identification area 2 and the second identification area 3 thereon are painted with red and green paints respectively, and a high-temperature sintered (about 200°) polyurethane material is used. The first identification area 2 and the second identification area 3 are painted with red and green colors with high contrast to improve the recognition of the subsequent drone data collection and processing process. At the same time, the use of a high-temperature sintered (about 200°) polyurethane material ensures that it will not fade for a long time under the erosion of the external environment.

[0034] See also Figures 3 to 5 As shown, further, the mounting mechanism 5 includes a central axis 51, a clamping plate 52, a fixing frame 53 and a telescopic component 54. The central axis 51 is vertically placed directly below the target 1 and is made of steel. The central axis 51 has a diameter of 20 mm and an external thread is provided on the outer side of the central axis 51. The length of the external thread is set to 200 mm. The upper end of the central axis 51 is screwed to the screw hole on the supporting plate 4, and the lower end is used to be fixed to the power tower. There are two splints 52, which are steel plates with a thickness of 10 mm, a length of 580 mm and a width of 60 mm. The two splints 52 are symmetrically arranged on both sides of the central axis 51, and a fixed frame 53 is arranged on the opposite side of the two splints 52. The fixed frame 53 has a fixed part and a movable part. The fixed part of the fixed frame 53 is fixedly connected to the supporting plate 4, and the movable part is fixedly connected to the splint 52. The telescopic component 54 is arranged between the central axis 51 and the two fixed frames 53. The two movable ends of the telescopic component 54 are respectively connected to the movable part of a fixed frame 53, and the telescopic component 54 is used to adjust the distance between the two splints 52.

[0035] See also Figure 4 and Figure 5 As shown, further, the telescopic component 54 includes a plurality of connecting ropes 541 and springs 542, and the connecting ropes 541 and the springs 542 correspond to each other, one end of the spring 542 is fixedly connected to the moving part of the fixing frame 53, and the other end is fixedly connected to the connecting rope 541, and one end of the connecting rope 541 away from the spring 542 is connected to the central axis 51. Preferably, the connecting rope 541 is made of steel wire, and the inner diameters of the springs 542 and the connecting rope 541 are both 4 mm, and the length is customized according to the specific power tower.

[0036] See also Figure 4 As shown, further, the telescopic component 54 includes an even number of connecting ropes 541 and springs 542, and the number of connecting ropes 541 and springs 542 on both sides of the central axis 51 is equal. Preferably, in order to adapt to the shape and installation requirements of the power tower, the springs 542 and connecting ropes 541 are both 6.

[0037] See also Figure 4 and Figure 5 As shown, further, the middle shaft 51 is equipped with an inner thread sleeve 6, which is in the shape of a cylinder, with an internal diameter of 20mm, an external diameter of 30mm, and a height of 63.4mm. The inner thread sleeve 6 is screwed with the external thread on the middle shaft 51, and the outer side of the inner thread sleeve 6 is respectively equipped with an external nut 7 and a fixer 8, and the fixer 8 is rotatably connected with the inner thread sleeve 6, and the external nut 7 is fixedly connected with the inner thread sleeve 6, and the shape of the external nut 7 is an equihexagonal cylinder with a cylindrical cavity inside, and the inner cylindrical cavity has an internal diameter of 30mm, a height of 25mm, and the outer hexagonal side length is 27.7mm. A plurality of connecting ropes 541 are fixed on the peripheral side of the fixer 8, and the outer shape of the fixer 8 is annular, with an internal diameter of 30mm, an external diameter of 40mm, and a height of 20mm, and it will not rotate with the rotation of the nuts of the middle shaft 51. The middle shaft 51 is provided with a limit assembly 9 for limiting the movement of the fixer 8.

[0038] See also Figure 5 As shown, further, the limiting assembly 9 includes a fixing rod 91 and a positioning screw hole 92 opened on the central axis 51, there are multiple positioning screw holes 92, the hole diameter is 6 mm, and the multiple positioning screw holes 92 are arranged at equal intervals along the axial direction of the central axis 51, the fixing rod 91 is a cylinder, the inner diameter is 6 mm, and the length is 54 mm. The fixing rod 91 is inserted into the positioning screw hole 92 close to the fixer 8, and is used to limit the fixer 8 in the gap formed between the fixing rod 91 and the outer nut 7.

[0039] See also Figure 3 and Figure 4 As shown, further, the fixed frame 53 includes a stabilizing frame 531 and a plurality of extension columns 532 arranged one by one with springs 542, and a plurality of extension columns 532 are inserted into the stabilizing frame 531 at equal intervals, and the extension columns 532 are slidably connected to the inner wall of the stabilizing frame 531, and the upper side of the stabilizing frame 531 is fixed to the supporting plate 4 by bolts, and one end of the extension column 532 is fixedly connected to the clamping plate 52, and the other end is fixedly connected to the corresponding spring 542. Preferably, the extension column 532 is made of steel, and the extension column 532 is a square column with a side length of 10mm and a length of 260mm. The stabilizing frame 531 is a circular structure, with an inner length of 580mm, a width of 10mm, an outer length of 600mm, a width of 20mm, and a thickness of 10mm, and the extension steel column passes through the inner side of the circular structure.

[0040] See also Figure 6 As shown, further, a groove 10 is provided on the two inner walls of the stabilizing frame 531 corresponding to each extension column 532, for limiting the movement of the extension column 532 perpendicular to the sliding direction.

[0041] See also Figure 3 and Figure 6As shown, further, a wind guide 11 for cleaning the dust on the surface of the target 1 is provided on one side of the target 1. The wind guide 11 is fixedly connected to the stabilizing frame 531. One end of the wind guide 11 is an air inlet 12, and the other end is an air outlet 13. The bottom wall of the air outlet 13 is flush with the side of the target 1 away from the supporting plate 4, and the air inlet 12 of the wind guide 11 is larger than the air outlet 13. The wind guide 11 can be used to gather the wind force of the flowing wind, so that the wind has a certain pressure after entering from the inlet and is blown out from the outlet to clean up the dust falling on the surface of the target 1, thereby ensuring the clarity of the target 1 and facilitating the data collection by the drone.

[0042] Working principle of this device:

[0043] When monitoring the deformation of the power tower, the camera takes pictures of the first identification area 2 and the second identification area 3 directly above the target 1 and in multiple oblique directions. The shooting in multiple oblique directions needs to be at the same height, and then the multiple shooting pictures collected by the camera are transmitted to the data processing module. The data processing module uses the multiple shooting pictures to perform three-dimensional modeling, and then specifies a specific coordinate point in the modeled three-dimensional model. Preferably, the feature point is the intersection of the four identification areas. The coordinate position information of the feature point in different time periods is used to compare and analyze each other to determine whether the power tower has tilted deformation. The device uses the mounting mechanism 5 and the support The cooperation of plate 4 enables target 1 to be fixedly installed at any position on the power tower without damaging the power tower, and then target 1 and the first identification area 2 and the second identification area 3 set on target 1 are used as reference objects for camera image acquisition, that is, target 1 is used to change the characteristic part on the power tower from a point into an enlarged plane, which effectively enlarges the characteristic points of the power tower. Therefore, due to the effect of target 1 on enlarging the characteristic points of the power tower, the images collected by the camera are more targeted, making it easier for the drone to ensure that each data acquisition can accurately find the same shooting position, and the data reliability is higher, which provides convenience for the deformation assessment of the power tower.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A power tower deformation monitoring device, comprising a drone, a camera and a data processing module, wherein the camera is mounted on the drone, and the data processing module is wirelessly connected to the camera, and is used to receive images taken by the camera and use multiple images to perform three-dimensional modeling to obtain the position coordinates of the monitoring point, characterized in that: It also includes an identification mechanism installed on the power tower for camera image collection, the identification mechanism includes: The target (1) is arranged horizontally, and two first identification areas (2) and two second identification areas (3) are symmetrically arranged on the upper side of the target (1), and the symmetry axes of the two first identification areas (2) and the two second identification areas (3) are perpendicular, and the first identification areas (2) and the second identification areas (3) are used to provide two vertically distributed reference areas for the shooting pictures of the camera at the same tilt height; A supporting plate (4) is fixedly connected to the bottom of the target (1); The mounting mechanism (5) is arranged at the bottom of the supporting plate (4), and the mounting mechanism (5) is used to fix the supporting plate (4) to the electric wire tower.

2. The electric wire tower deformation monitoring device according to claim 1, characterized in that: The mounting mechanism (5) comprises a central axis (51), a clamping plate (52), a fixing frame (53) and a telescopic component (54). The central axis (51) is provided with an external thread on its outer side. The upper end of the central axis (51) is screwed to a screw hole on a supporting plate (4), and the lower end is used to be fixed to a power tower. There are two clamping plates (52), and the two clamping plates (52) are symmetrically arranged on both sides of the central axis (51). A fixing frame (53) is arranged on the opposite side of the two clamping plates (52). The fixing frame (53) has a fixed part and a movable part. The fixed part of the fixing frame (53) is fixedly connected to the supporting plate (4), and the movable part is fixedly connected to the clamping plate (52). The telescopic component (54) is arranged between the central axis (51) and the two fixing frames (53). The two movable ends of the telescopic component (54) are respectively connected to a movable part of the fixing frame (53). The telescopic component (54) is used to adjust the distance between the two clamping plates (52).

3. The electric tower deformation monitoring device according to claim 2, characterized in that: The telescopic component (54) comprises a plurality of connecting ropes (541) and springs (542), and the connecting ropes (541) and the springs (542) correspond to each other one by one. One end of the spring (542) is fixedly connected to the moving part of the fixed frame (53), and the other end is fixedly connected to the connecting rope (541). One end of the connecting rope (541) away from the spring (542) is connected to the central axis (51).

4. The electric wire tower deformation monitoring device according to claim 3, characterized in that: The telescopic component (54) comprises an even number of connecting ropes (541) and springs (542), and the numbers of the connecting ropes (541) and springs (542) on both sides of the central axis (51) are equal.

5. The electric wire tower deformation monitoring device according to claim 3, characterized in that: An inner thread sleeve (6) is sleeved on the central shaft (51), the inner thread sleeve (6) is threadedly connected to the outer thread on the central shaft (51), an outer nut (7) and a fixer (8) are sleeved on the outer side of the inner thread sleeve (6), the fixer (8) is rotatably connected to the inner thread sleeve (6), the outer nut (7) is fixedly connected to the inner thread sleeve (6), a plurality of connecting ropes (541) are fixed on the circumference of the fixer (8), and a limit assembly (9) for limiting the movement of the fixer (8) is provided on the central shaft (51).

6. A power tower deformation monitoring device according to claim 5, characterized in that: The limiting assembly (9) comprises a fixing rod (91) and a positioning screw hole (92) provided on the central axis (51); the positioning screw holes (92) are multiple and are arranged at equal intervals along the axial direction of the central axis (51); the fixing rod (91) is inserted into the positioning screw hole (92) close to the fixer (8) to limit the fixer (8) in a gap formed between the fixing rod (91) and the outer nut (7).

7. The electric wire tower deformation monitoring device according to claim 1, characterized in that: The target (1) is a rectangular parallelepiped, and the first marking area (2) and the second marking area (3) are divided by two diagonal lines of the target (1).

8. The electric wire tower deformation monitoring device according to claim 3, characterized in that: The fixed frame (53) includes a stabilizing frame (531) and a plurality of extension columns (532) arranged one-to-one corresponding to the springs (542); the plurality of extension columns (532) are inserted into the stabilizing frame (531) at equal intervals, and the extension columns (532) are slidably connected to the inner wall of the stabilizing frame (531); the upper side of the stabilizing frame (531) is fixed to the supporting plate (4) by bolts; one end of the extension column (532) is fixedly connected to the clamping plate (52), and the other end is fixedly connected to the corresponding spring (542).

9. The electric wire tower deformation monitoring device according to claim 8, characterized in that: The stabilizing frame (531) is a circular structure, and a groove (10) is provided on the two inner walls of the stabilizing frame (531) corresponding to each of the extension columns (532) for limiting the movement of the extension columns (532) perpendicular to the sliding direction.

10. The electric wire tower deformation monitoring device according to claim 8, characterized in that: An air guide cover (11) for cleaning dust on the surface of the target (1) is provided on one side of the target (1); the air guide cover (11) is fixedly connected to the stabilizing frame (531); one end of the air guide cover (11) is an air inlet (12) and the other end is an air outlet (13); the bottom wall of the air outlet (13) is flush with a side of the target (1) facing away from the supporting plate (4); and the air inlet (12) of the air guide cover (11) is larger than the air outlet (13).

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