Porcelain insulator distribution voltage measuring device based on unmanned aerial vehicle

Abstract

The invention relates to a porcelain insulator distribution voltage measuring device based on an unmanned aerial vehicle, and the device comprises a control box, one side of the control box is fixedly provided with a detection box, the two ends of the side, away from the control box, of the detection box are fixedly connected with two detection guide strips, and the side, away from the detection box, of the control box is fixedly provided with an assembly threaded sleeve. The device comprises an assembling frame plate, one end of the assembling frame plate is fixedly provided with a mounting plate, the two sides of the bottom of the mounting plate are fixedly provided with assembling threaded sleeves, and one side of an assembling circular plate is fixedly provided with a connecting plate. The average time for measuring a single string of insulators by the unmanned aerial vehicle is less than 30 seconds, the calibration efficiency is high, the requirement on the operation proficiency of personnel is low, the contact between a detection instrument and an insulator steel cap is better, the measurement is accurate, the speed is high, the advantages on high-altitude operation are obvious, and more potential safety hazards are avoided.

Description

Technical Field

[0001] This application relates to the field of power transmission line inspection by unmanned aerial vehicles (UAVs), and particularly to a device for measuring the distributed voltage of porcelain insulators based on UAVs. Background Art

[0002] An insulator is a special insulating component installed between conductors at different potentials or between a conductor and a grounding member to increase the creepage distance and capable of withstanding voltage and mechanical stress. If each insulator in an insulator string is in good condition, there will be a certain voltage distribution across each one during operation. If a certain insulator deteriorates and its insulation is reduced or lost, the voltage distribution value across this insulator will be reduced or become zero.

[0003] Due to the influence of mechanical and electrical loads and environmental factors over a long time, the porcelain insulators of power transmission lines are prone to a reduction or loss of insulation performance, forming low-value or zero-value insulators, which affects the safe operation of the line. Therefore, it is necessary to regularly carry out zero-value detection work. The existing insulator detection methods mainly involve manual detection one by one, with a cumbersome work process and many potential safety hazards. The detection personnel need to operate electrical equipment proficiently and record detection data at the same time, and the accuracy depends on manual operation. Usually, the detection instrument needs to be in contact with the steel cap of the insulator, but in actual operation, the situation of loose contact connection is quite common, resulting in inaccurate measurement results and even safety accidents. Since insulators are often installed at high altitudes, the operators need to perform high-altitude operations, and the personnel need to climb to the measurement position multiple times, consuming a large amount of physical strength, and the equipment self-check time is relatively long, resulting in low overall detection efficiency. The above problems seriously restrict the detection efficiency and safety of insulator detection work. Summary of the Invention

[0004] The purpose of the embodiments of this application is to overcome the deficiencies of the prior art, and provide a device for measuring the distributed voltage of porcelain insulators based on UAVs, which uses the method of carrying a detection device by a UAV to perform voltage tests on porcelain insulators at high places, and improves the detection and troubleshooting efficiency of zero or low-value insulators.

[0005] To achieve the above purpose, this application provides the following technical solutions:

[0006] An embodiment of the present application provides a porcelain insulator distributed voltage measuring device based on a drone, which includes a control box, an assembly frame plate, and an assembly circular plate. One side of the control box is fixedly installed with a detection box. Both ends of the side of the detection box away from the control box are fixedly connected with two detection guide bars. One side of the control box away from the detection box is fixedly installed with an assembly threaded sleeve. One end of the assembly frame plate is fixedly installed with a mounting plate. Both sides of the bottom of the mounting plate are fixedly installed with assembly threaded sleeves. One side of the assembly circular plate is fixedly installed with a connecting plate. Four second assembly threaded holes are respectively opened in the interiors of the assembly circular plate and the assembly block. Four first assembly threaded holes are respectively opened in the interiors of the connecting plate and one end of the assembly frame plate.

[0007] The assembly circular plate and the assembly block are assembled through four second assembly threaded holes, and the connecting plate and the assembly frame plate are assembled through four first assembly threaded holes.

[0008] One side of the assembly frame plate is fixedly installed with a longitudinal reinforcing bar. The side of the assembly frame plate away from the longitudinal reinforcing bar is fixedly installed with a transverse reinforcing bar. A diagonal reinforcing bar is fixedly installed at the top of the side of the assembly frame plate where the transverse diagonal reinforcing bar is installed. A reinforcing seat is fixedly installed at the bottom of the side of the assembly frame plate where the longitudinal diagonal reinforcing bar is installed.

[0009] Two clamping seats are symmetrically fixedly installed at the top of the mounting plate. A clamping plate is clamped and installed inside the two clamping seats. A support column is fixedly installed at the top of the clamping plate. A second fixed barrel is fixedly installed at the top of the support column.

[0010] One side of the detection box where the detection guide bar is installed is fixedly installed with a first fixed barrel. One side of the detection box where the first fixed barrel is installed is fixedly installed with a fixed insertion rod. The fixed insertion rod is located inside the first fixed barrel.

[0011] A fixed threaded groove is opened inside the end of the fixed insertion rod away from the detection box. A fixed bolt is threadedly connected inside the fixed threaded groove.

[0012] A fixed insertion slot is opened inside the second fixed barrel. The specification size of the inner contour of the fixed insertion slot is matched with the specification size of the outer contour of the fixed insertion rod. The end of the fixed insertion rod away from the detection box is inserted and installed inside the fixed insertion slot. A gasket is sleeved outside the fixed bolt. The gasket is located outside the end of the second fixed barrel away from the first fixed barrel.

[0013] A spring is installed inside the first fixed barrel, and one end of the spring is in contact with one side of the detection box.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By using a drone to carry a detection device to perform voltage tests on porcelain insulators at high altitudes, the efficiency of detecting and troubleshooting zero or low-value insulators is improved. The average time taken by the drone to measure a single string of insulators is less than 30 seconds, with high calibration efficiency, low requirements for the proficiency of personnel operation, better contact between the detection instrument and the insulator steel cap, no need to repeatedly unfasten and fasten the safety belt, repeatedly change the backup protection hanging point, quickly move and climb to the measurement position, accurate measurement, fast speed, obvious advantages for high-altitude operations, and avoidance of more potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the three-dimensional appearance structure of the present invention.

[0017] Figure 2 Schematic diagram of the bottom-up three-dimensional structure of the present invention.

[0018] Figure 3 Schematic diagram of the partial three-dimensional structure of the present invention.

[0019] Figure 4 Schematic diagram of the partial appearance structure of the present invention.

[0020] Figure 5 Schematic diagram of the partial side view structure of the present invention.

[0021] Figure 6 Schematic diagram of the three-dimensional structure of the assembled circular plate of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] The terms "comprise", "comprising", or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements that are inherent to such process, method, article, or apparatus. Without further limitation, an element qualified by the statement "comprising an..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0024] The terms "first", "second", etc. are used only to distinguish one entity or operation from another entity or operation, and should not be construed as indicating or implying relative importance, nor as requiring or implying any actual relationship or order between these entities or operations.

[0025] Please refer to Figures 1 to 6 , a ceramic insulator distributed voltage measuring device based on a drone, comprising a control box 1, an assembly frame plate 2 and an assembly circular plate 21. One side of the control box 1 is fixedly installed with a detection box 3. Both ends of the side of the detection box 3 away from the control box 1 are fixedly connected with two detection guide bars 6. One side of the control box 1 away from the detection box 3 is fixedly installed with an assembly block 26. One end of the assembly frame plate 2 is fixedly installed with a mounting plate 9. Both sides of the bottom of the mounting plate 9 are fixedly installed with assembly threaded sleeves 16. One side of the assembly circular plate 21 is fixedly installed with a connecting plate 22. Four second assembly threaded holes 17 are respectively opened in the interiors of the assembly circular plate 21 and the assembly block 26. Four first assembly threaded holes 14 are respectively opened in the interiors of the connecting plate 22 and one end of the assembly frame plate 2. The assembly circular plate 21 and the assembly block 26 are assembled through the four second assembly threaded holes 17. The connecting plate 22 and the assembly frame plate 2 are assembled through the four first assembly threaded holes 14.

[0026] Working principle of the above technical solution: First, connect the assembly frame plate 2 to an external drone. The drone uses the DJI Mavic Detection Box 3E industrial drone as the carrier aircraft. Install the assembly frame plate 2 on the top of the external drone through the assembly thread sleeve 16 at the bottom of the mounting plate 9 in cooperation with bolts. Then, assemble between the control box 1 and the assembly frame plate 2 through the assembly circular plate 21 and the connecting plate 22. First, align the four second assembly thread holes 17 inside the assembly circular plate 21 and the assembly block 26, and then assemble the assembly circular plate 21 and the assembly block 26 together with bolts. Then, align the four first assembly thread holes 14 inside the connecting plate 22 and the assembly frame plate 2, and then assemble the connecting plate 22 and the assembly frame plate 2 together with bolts to assemble the control box 1 and the assembly frame plate 2 together, thus installing the detection device on the top of the external drone. When it is necessary to detect the porcelain insulator at a high place, the drone can be started to fly to the high place, and then the detection guide bar 6 is brought into contact with the porcelain insulator to measure the distributed voltage of the porcelain insulator. The measured data will be transmitted to the processor inside the control box 1 through the detection box 3, and after being processed by the processor, it will be transmitted to the remote through wireless or Bluetooth. If each insulator in the porcelain insulator is in good condition, there will be a certain voltage distribution on each piece during operation. If a certain insulator deteriorates and its insulation is reduced or lost, the voltage distribution value on this piece will be reduced or become zero. During measurement, compare the measured voltage distribution value of each insulator with the standard value. When the voltage distribution is lower than 50% of the standard value, it is considered "bad" or "zero value". If the voltage value of the measured insulator is higher than 50% of the standard specified value and at the same time is significantly lower than the voltage values of the qualified insulators on the adjacent two sides, it is judged as a deteriorated insulator. If there is no discharge under the specified spark gap distance and discharge voltage, it is judged as a deteriorated insulator. The method of using a drone to carry the detection device to test the voltage of the porcelain insulator at a high place improves the detection and troubleshooting efficiency of zero or low-value insulators. The average time taken by the drone to measure a single string of insulators is less than 30 seconds, the calibration efficiency is high, the requirement for the operator's proficiency is low, the detection instrument has better contact with the insulator steel cap, there is no need to repeatedly unfasten and fasten the safety belt, repeatedly change the backup protection hanging point, and it is fast to move and climb to the measurement position, the measurement is accurate and fast, and it has obvious advantages for high-altitude operations, avoiding more potential safety hazards.

[0027] In another embodiment, as Figures 1 - 6 shown, a longitudinal reinforcement bar 13 is fixedly installed on one side of the assembly frame plate 2, a transverse reinforcement bar 12 is fixedly installed on the side of the assembly frame plate 2 away from the longitudinal reinforcement bar 13, a diagonal bracing reinforcement bar 11 is fixedly installed at the top of the side of the assembly frame plate 2 where the transverse reinforcement bar 12 is installed, and a reinforcement seat 15 is fixedly installed at the bottom of the side of the assembly frame plate 2 where the longitudinal reinforcement bar 13 is installed.

[0028] The rigidness of the assembled panel 2 can be enhanced by the provided diagonal bracing strips 11, horizontal bracing strips 12, vertical bracing strips 13 and bracing bases 15, ensuring the stability of the assembled panel 2 when the UAV is flying, so as to ensure that the detection guide strip 6 is more stable when detecting the voltage of the porcelain insulator and guarantee the detection effect.

[0029] In another embodiment, as Figures 1 - 6 shown, two clamping seats 10 are symmetrically and fixedly installed at the top of the mounting plate 9. A clamping plate 8 is clamped and installed inside the two clamping seats 10. A support column 7 is fixedly installed at the top of the clamping plate 8. A second fixed barrel 5 is fixedly installed at the top of the support column 7. One side of the detection box 3 where the detection guide strip 6 is installed is fixedly installed with a first fixed barrel 4. One side of the detection box 3 where the first fixed barrel 4 is installed is fixedly installed with a fixed insertion rod 20. The fixed insertion rod 20 is located inside the first fixed barrel 4. A fixed thread groove 24 is formed inside the end of the fixed insertion rod 20 away from the detection box 3. A fixed bolt 18 is threadedly connected inside the fixed thread groove 24. A fixed insertion slot 25 is formed inside the second fixed barrel 5. The specification size of the inner contour of the fixed insertion slot 25 matches the specification size of the outer contour of the fixed insertion rod 20. The end of the fixed insertion rod 20 away from the detection box 3 is inserted and installed inside the fixed insertion slot 25. A gasket 19 is sleeved outside the fixed bolt 18. The gasket 19 is located outside the end of the second fixed barrel 5 away from the first fixed barrel 4. A spring 23 is installed inside the first fixed barrel 4, and one end of the spring 23 is in contact with one side of the detection box 3.

[0030] After the control box 1 and the assembled panel 2 are assembled through the assembled circular plate 21 and the connecting plate 22, the clamping plate 8 can be clamped and installed inside the two clamping seats 10, and one side of the second fixed barrel 5 is in contact with one side of the first fixed barrel 4, and the fixed insertion rod 20 is inserted inside the fixed insertion slot 25. Then the fixed bolt 18 is threadedly connected inside the fixed thread groove 24 at the end of the fixed insertion rod 20, so as to assemble the first fixed barrel 4 and the second fixed barrel 5 together to support and reinforce the position of the detection box 3, ensure the stability of the control box 1 and the detection box 3 when the UAV is flying, so as to ensure that the detection guide strip 6 is more stable when detecting the voltage of the porcelain insulator and guarantee the detection effect.

[0031] Working principle: First, connect the assembly frame plate 2 to an external drone. The drone uses the DJI Mavic Detection Box 3E industrial drone as the carrier aircraft. Install the assembly frame plate 2 on the top of the external drone through the assembly thread sleeve 16 at the bottom of the mounting plate 9 in cooperation with bolts. Then, assemble between the control box 1 and the assembly frame plate 2 through the assembly circular plate 21 and the connecting plate 22. First, align the four second assembly thread holes 17 inside the assembly circular plate 21 and the assembly block 26, and then assemble the assembly circular plate 21 and the assembly block 26 together through bolts. Then, align the four first assembly thread holes 14 inside the connecting plate 22 and the assembly frame plate 2, and then assemble the connecting plate 22 and the assembly frame plate 2 together, realizing the assembly of the control box 1 and the assembly frame plate 2. After the assembly between the control box 1 and the assembly frame plate 2 is completed through the assembly circular plate 21 and the connecting plate 22, the clamping plate 8 can be clamped and installed inside the two clamping seats 10, and make one side of the second fixed frame cylinder 5 contact with one side of the first fixed frame cylinder 4, and make the fixed insertion rod 20 inserted into the fixed slot 25. Then, thread the fixed bolt 18 into the fixed thread groove 24 at the end of the fixed insertion rod 20, thereby realizing the assembly of the first fixed frame cylinder 4 and the second fixed frame cylinder 5, supporting and strengthening the position of the detection box 3, ensuring the stability of the control box 1 and the detection box 3 when the drone is flying, so as to ensure that the detection guide bar 6 is more stable when detecting the voltage of the porcelain insulator, ensuring the detection effect. Thus, when installing the detection device on the top of an external drone and needing to detect the porcelain insulator at a high place, the drone can be started to fly to the high place, and then make the detection guide bar 6 contact the porcelain insulator to measure the distributed voltage of the porcelain insulator. The measured data will be transmitted to the processor inside the control box 1 through the detection box 3, and after being processed by the processor, it will be transmitted to the remote through wireless or Bluetooth. If each insulator in the porcelain insulator is in good condition, there will be a certain voltage distribution on each piece during operation. If a certain insulator deteriorates and its insulation is reduced or lost, the voltage distribution value on this piece will be reduced or become zero. During measurement, compare the measured voltage distribution value of each insulator with the standard value. When the voltage distribution is lower than 50% of the standard value, it is considered "bad" or "zero value". If the voltage value of the measured insulator is higher than 50% of the standard specified value and is significantly lower than the voltage values of the qualified insulators on the adjacent two sides, it is judged as a deteriorated insulator. If there is no discharge under the specified spark gap distance and discharge voltage, it is judged as a deteriorated insulator. By using the method of carrying the detection device by a drone to test the voltage of the porcelain insulator at a high place, the detection and troubleshooting efficiency of zero or low-value insulators is improved. The average time for the drone to measure a single string of insulators is less than thirty seconds, the calibration efficiency is high, the requirement for the operator's proficiency is low, the detection instrument has better contact with the insulator steel cap, there is no need to repeatedly unfasten and fasten the safety belt, repeatedly change the backup protection hanging point, and it is fast to move and climb to the measurement position, with accurate measurement and fast speed, having obvious advantages for high-altitude operations and avoiding more potential safety hazards.

[0032] The above are only the embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A porcelain insulator distributed voltage measuring device based on a drone, comprising a control box (1), an assembly frame plate (2) and an assembly circular plate (21), characterized in that: One side of the control box (1) is fixedly installed with a detection box (3). Both ends of the side of the detection box (3) away from the control box (1) are fixedly connected with two detection guide bars (6). One side of the control box (1) away from the detection box (3) is fixedly installed with an assembly block (26). One end of the assembly frame plate (2) is fixedly installed with a mounting plate (9). Both sides of the bottom of the mounting plate (9) are fixedly installed with assembly threaded sleeves (16). One side of the assembly circular plate (21) is fixedly installed with a connecting plate (22). Four second assembly threaded holes (17) are opened in both the assembly circular plate (21) and the assembly block (26). Four first assembly threaded holes (14) are opened in both the connecting plate (22) and the inner part of one end of the assembly frame plate (2).

2. The porcelain insulator distributed voltage measuring device based on an unmanned aerial vehicle according to claim 1, characterized in that, The assembly circular plate (21) and the assembly block (26) are assembled through four second assembly threaded holes (17). The connecting plate (22) and the assembly frame plate (2) are assembled through four first assembly threaded holes (14).

3. The porcelain insulator distributed voltage measuring device based on an unmanned aerial vehicle according to claim 2, wherein: One side of the assembly frame plate (2) is fixedly installed with a longitudinal reinforcement bar (13). One side of the assembly frame plate (2) away from the longitudinal reinforcement bar (13) is fixedly installed with a transverse reinforcement bar (12). One side of the assembly frame plate (2) where the transverse reinforcement bar (12) is installed is fixedly installed with a diagonal bracing reinforcement bar (11) at the top. One side of the assembly frame plate (2) where the longitudinal reinforcement bar (13) is installed is fixedly installed with a reinforcement base (15) at the bottom.

4. The porcelain insulator distributed voltage measuring device based on a drone according to claim 3, wherein: Two clamping seats (10) are symmetrically fixedly installed at the top of the mounting plate (9). A clamping plate (8) is clamped and installed inside the two clamping seats (10). A support column (7) is fixedly installed at the top of the clamping plate (8). A second fixed barrel (5) is fixedly installed at the top of the support column (7).

5. The porcelain insulator distributed voltage measuring device based on an unmanned aerial vehicle according to claim 4, wherein: One side of the detection box (3) where the detection guide bar (6) is installed is fixedly installed with a first fixed barrel (4). One side of the detection box (3) where the first fixed barrel (4) is installed is fixedly installed with a fixed insertion rod (20). The fixed insertion rod (20) is located inside the first fixed barrel (4).

6. The porcelain insulator distributed voltage measuring device based on an unmanned aerial vehicle according to claim 5, characterized in that: A fixed threaded groove (24) is opened inside the end of the fixed insertion rod (20) away from the detection box (3). A fixed bolt (18) is threadedly connected inside the fixed threaded groove (24).

7. The porcelain insulator distributed voltage measuring device based on a drone according to claim 6, characterized in that: A fixed insertion slot (25) is opened inside the second fixed barrel (5). The specification size of the inner contour of the fixed insertion slot (25) is matched with the specification size of the outer contour of the fixed insertion rod (20). The end of the fixed insertion rod (20) away from the detection box (3) is inserted and installed inside the fixed insertion slot (25). A gasket (19) is sleeved outside the fixed bolt (18). The gasket (19) is located outside the end of the second fixed barrel (5) away from the first fixed barrel (4).

8. The porcelain insulator distributed voltage measuring device based on an unmanned aerial vehicle according to claim 7, wherein: A spring (23) is installed inside the first fixed barrel (4), and one end of the spring (23) is in contact with one side of the detection box (3).

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