Device for carrying out tower grounding resistance data acquisition by using unmanned aerial vehicle

Abstract

The utility model discloses a device for acquiring tower grounding resistance data by using an unmanned aerial vehicle, and relates to the technical field of tower grounding resistance measurement. The device comprises a grounding resistance sensor, a mainframe box and a data receiving device installed on the unmanned aerial vehicle. Ground resistance of a ground line body is collected through a ground resistance sensor, ground resistance data are transmitted to a mainframe box, and when an unmanned aerial vehicle conducts polling between towers, the mainframe box transmits the ground resistance data to a data receiving device through a communication module in the mainframe box. Therefore, a background manager obtains the grounding resistance data of each tower through the data receiving device, manual climbing and dismounting of a grounding down lead are not needed, the operation risk and the labor intensity are reduced, environmental factor interference can be avoided, the measurement accuracy and reliability are improved, data are collected through rapid flight of the unmanned aerial vehicle, the working efficiency is greatly improved, and the working efficiency is improved. And the large-scale detection requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of tower grounding resistance measurement, in particular to a device for collecting tower grounding resistance data by utilizing a drone. Background Art

[0002] In today's power sector, the continuous expansion and complexity of power networks are placing higher demands on the stable operation and safety of power equipment. As a key support structure for power transmission, accurate ground resistance measurement of towers is crucial to ensuring the safe and stable operation of power systems. With the rapid development of technology, the application of intelligent and automated detection technologies in the power industry is gaining increasing attention.

[0003] Traditional tower grounding resistance measurements typically require manual climbs to the tower, removal of the grounding down conductor, and measurement using specialized measuring instruments. This method is not only labor-intensive but also inefficient. The measurement process is susceptible to interference from environmental factors such as weather and terrain, compromising the accuracy and reliability of the results. Furthermore, due to the large number and widespread distribution of towers in power systems, traditional manual measurement methods are unable to meet the needs of large-scale, rapid testing.

[0004] Importance of ground resistance monitoring:

[0005] Lightning protection ground wires for all types of buildings and equipment, especially power system terminals, must be reliably grounded. The quality of the grounding resistance is crucial to power system safety. To improve the lightning protection capability of lightning protection ground wires, their grounding resistance must be reduced. However, due to factors such as damage, corrosion, and drought, grounding resistance can vary significantly. Real-time monitoring of grounding resistance is crucial for ensuring that static electricity on equipment casings and the high current from lightning rods are safely discharged into the earth during a lightning strike.

[0006] Limitations of existing measurement methods:

[0007] ① The megohmmeter method is based on the principle of measuring pure resistance and is not suitable for measuring the grounding resistance of a large-area ground grid.

[0008] ② Although the 0.618 method and the isosceles triangle method belong to voltage and current methods, their measurement methods are inconvenient. At present, the grounding resistance is mostly measured manually, which is inefficient and difficult to guarantee accuracy.

[0009] Existing technical solutions:

[0010] Measuring the grounding resistance of power towers primarily relies on manual labor. Workers must climb the towers, manually remove the grounding down conductors, and then use specialized measuring instruments to perform measurements. This method has several significant drawbacks: First, manually climbing the towers is not only labor-intensive but also dangerous. Second, removing the grounding down conductors is tedious and complex, requiring significant time and effort. Third, the measurement process is susceptible to interference from weather conditions (such as strong winds and thunderstorms), terrain (such as hills and rivers), and the surrounding electromagnetic environment, which can affect the accuracy and reliability of the results. Furthermore, due to the large number and widespread distribution of power towers in power systems, this tower-by-tower manual measurement method is extremely inefficient, making it difficult to complete large-scale inspection tasks in a short period of time. Utility Model Content

[0011] In order to solve the above problems, the utility model provides a device for collecting tower grounding resistance data using a drone. There is no need for manual climbing and removal of grounding down conductors, which reduces operational risks and labor intensity, avoids interference from environmental factors, and improves measurement accuracy and reliability. Data is collected by the drone's rapid flight, which greatly improves work efficiency and meets large-scale detection requirements.

[0012] A device for collecting tower grounding resistance data using a drone comprises a grounding resistance sensor located below the tower and connected to a ground line body, a main box connected to the grounding resistance sensor by wire, and a data receiving device connected to the main box for data transmission and installed on the drone.

[0013] Furthermore, the ground resistance sensor adopts a coupling sensor, which includes a rated current generator and a current electrode connected to the ground line body, and a voltmeter and a voltage electrode connected to the ground line body.

[0014] Furthermore, the host case includes a waterproof host case, a power module located inside the case, a host control board connected to the power module, a host switch, a host charging interface, and a signal transmitting module connected to the host control board; wherein the host switch and the host charging interface are exposed to the outside of the waterproof host case, and the host control board is connected to the grounding resistance sensor via a connecting wire passing through the case.

[0015] Furthermore, a host display screen is installed on the box body of the waterproof host chassis, and the host display screen is connected to the host control board.

[0016] Furthermore, a photovoltaic power generation panel is installed on the top of the waterproof host chassis, and the photovoltaic power generation panel is connected to the power module through the host control board.

[0017] The device for collecting tower grounding resistance data using a drone has the following beneficial effects:

[0018] The device for collecting tower grounding resistance data using drones collects the grounding resistance of the ground line body through a grounding resistance sensor and transmits the grounding resistance data to a main box. When the drone conducts inspections between towers, the main box transmits the grounding resistance data to a data receiving device through its internal communication module, so that back-end management personnel can obtain the grounding resistance data of each tower through the data receiving device, thereby improving the work efficiency of grounding resistance detection and meeting large-scale detection requirements.

[0019] This device, which uses drones to collect ground resistance data from towers, can quickly cover widely distributed areas, such as transmission line towers, significantly reducing data collection time. Compared to traditional manual measurement methods, it eliminates the need for individual tower measurements, improving overall measurement efficiency. The ground resistance sensor accurately measures ground loop resistance, further improving the accuracy of measurement results. The main chassis and data receiving device utilize LoRa wireless communication to ensure accurate data transmission and avoid errors during the data transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall layout of a device for collecting tower grounding resistance data using a drone in the present invention;

[0022] Figure 2 and Figure 3 This is a schematic diagram of the structure of the main chassis of the utility model;

[0023] In the figure: 1. Pole tower; 2. Ground resistance sensor; 3. Host box; 4. Drone; 5. Data receiving device; 6. Waterproof host box; 7. Power module; 8. Host control board; 9. Host switch; 10. Host charging port; 11. Signal transmission module; 12. Host display screen; 13. Photovoltaic power generation panel. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0025] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other. It should be noted that similar numbers and letters represent 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.

[0026] This embodiment provides a device for collecting tower grounding resistance data using a drone; Figure 1 As shown, the device for collecting tower grounding resistance data using a drone includes a grounding resistance sensor 2 located below the tower 1 and connected to the ground line body, a main box 3 connected to the grounding resistance sensor 2 by wire, and a data receiving device 5 connected to the main box 3 for data transmission and installed on a drone 4.

[0027] The ground resistance sensor 2 uses a commercially available coupling sensor, such as the Fluke 1625-2 coupling sensor. The coupling sensor includes a rated current generator and current electrode connected to the ground line, as well as a voltmeter and voltage electrode connected to the ground line. The coupling sensor applies an excitation pulse signal to the ground loop, inducing an electric potential E in the loop. This potential induces a current I in the loop, thereby obtaining ground loop resistance data.

[0028] Since the coupling sensor itself does not have the data transmission function, a main box 3 is provided in this embodiment for the purpose of transmitting the ground loop resistance data. The main box 3 can be installed by hanging it on the tower at the bottom of each tower 1 through a bracket, or by installing it on the ground near the tower 1 through a prefabricated concrete mounting base. Figure 2 and Figure 3As shown, the host case 3 in this embodiment includes a waterproof host case 6, a power module 7 located within the case, a host control board 8 connected to the power module 7, a host switch 9 connected to the host control board 8, a host charging port 10, and a signal transmitting module 11. The waterproof host case 6 is a metal case structure. The power module 7 uses a commercially available 6VDC-12VDC power supply, such as the Mean Well LRS-350-12 power supply. The host control board 8 uses a commercially available Arduino Mega 2560 host controller equipped with data storage function. The signal transmitting module 11 uses a commercially available Semtech SX1276 LoRa long-distance wireless module. The host switch 9 and the host charging port 10 are exposed on the outside of the waterproof host case 6. The host control board 8 is connected to the ground resistance sensor 2 via a connecting wire passing through the case.

[0029] Since the power grid currently uses drones 4 to inspect transmission lines, drones 4 are used as carriers and are equipped with a data receiving device 5, which is mainly a data storage device and a Semtech SX1276 LoRa long-distance wireless module. When drone 4 performs an inspection task near a pole tower 1, the data receiving device 5 establishes a data transmission channel with the main box 3 via the LoRa long-distance wireless module, so that the ground loop resistance data stored in the main control board 8 is transmitted to the data storage device 5 for storage. When drone 4 completes its inspection of the transmission lines along the pipeline area, it receives the ground loop resistance data of all pole towers 1. After drone 4 lands, the backstage manager connects to the data receiving device 5 via a computer to export the data and obtain all the ground loop resistance data.

[0030] Furthermore, as a preferred technical solution of this embodiment, considering that the on-site personnel can know the ground loop resistance data of the tower 1 at the corresponding position in real time, such as Figure 2 As shown, in this embodiment, a host display screen 12 is also installed on the box body of the waterproof host chassis 6. The host display screen 12 is connected to the host control board 8, and the grounding loop resistance data collected by the grounding resistance sensor 2 is displayed in real time through the host display screen 12.

[0031] In addition, as the preferred technical solution of this embodiment, a photovoltaic power generation panel 13 is also installed on the top outside the waterproof host chassis 6. The photovoltaic power generation panel 13 is connected to the power module 7 through the host control board 8. The photovoltaic power generation panel 13 uses commercially purchased finished equipment to convert solar energy into electrical energy to charge the power module 7, so as to ensure long-term and stable operation of the host chassis 3.

[0032] To sum up, the device for collecting tower grounding resistance data using a drone collects the grounding resistance of the ground line body through the grounding resistance sensor 2, and transmits the grounding resistance data to the main box 3. When the drone 4 inspects the tower 1, the main box 3 transmits the grounding resistance data to the data receiving device 5 through its internal communication module, so that the back-end management personnel can obtain the grounding resistance data of each tower through the data receiving device 5, thereby improving the work efficiency of grounding resistance detection and meeting large-scale detection requirements.

[0033] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A device for collecting tower grounding resistance data using an unmanned aerial vehicle, characterized in that: The device for collecting tower grounding resistance data using a drone includes a grounding resistance sensor located below the tower and connected to a ground line body, a main box connected to the grounding resistance sensor by wire, and a data receiving device connected to the main box for data transmission and installed on the drone.

2. The device for collecting tower grounding resistance data using a drone according to claim 1, wherein: The ground resistance sensor adopts a coupling sensor, which includes a rated current generator and a current electrode connected to the ground line body, and a voltmeter and a voltage electrode connected to the ground line body.

3. The device for collecting tower grounding resistance data using a drone according to claim 1, wherein: The host case includes a waterproof host case, a power module located inside the case, a host control board connected to the power module, a host switch, a host charging interface, and a signal transmitting module connected to the host control board; wherein the host switch and the host charging interface are exposed to the outside of the waterproof host case, and the host control board is connected to the grounding resistance sensor via a connecting wire passing through the case.

4. The device for collecting tower grounding resistance data using an unmanned aerial vehicle according to claim 3, wherein: A host display screen is also installed on the box body of the waterproof host chassis, and the host display screen is connected to the host control board.

5. The device for collecting tower grounding resistance data using a drone according to claim 3, characterized in that: A photovoltaic power generation panel is also installed on the top of the waterproof host chassis, and the photovoltaic power generation panel is connected to the power module through the host control board.

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