Unmanned aerial vehicle-based overhead line nuclear phase method and auxiliary device

Abstract

The invention relates to the technical field of power transmission line detection, in particular to an overhead line nuclear phase method based on an unmanned aerial vehicle and an auxiliary device. An execution control terminal is divided into a master control center and a field sub-control group, the master control center is arranged in a remote command facility, the field sub-control group is temporarily deployed in a detection field, and the master control center is in remote communication connection with the field sub-control group and performs hierarchical sequential control on field equipment operation. The field sub-control group performs detection operation according to a predetermined detection plan and collects detected data, the field sub-control group remotely sends the detected data to the master control center in real time, and the master control center receives the detected data and stores and analyzes the data. Based on the operation mode of the unmanned aerial vehicle and the remote control system, the limitations can be broken through, the general control center knows the environment change of a task area in advance through remote sensing equipment, the field sub-control group can quickly respond and flexibly adjust the operation mode, and smooth detection under severe weather and difficult environment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission line detection, in particular to an overhead line phase checking method based on a UAV and an auxiliary device. BACKGROUND

[0002] The stability and reliability of overhead power transmission lines are directly related to the safe operation and power supply guarantee of the power system. In order to ensure the safety and stability of overhead lines, regular detection and maintenance of power lines are needed. Phase detection, as a key technology, is of great significance to ensure the correct operation of the line and avoid equipment damage and power accidents caused by phase sequence errors. Phase checking refers to the checking and confirmation of the phase sequence of overhead power transmission lines to ensure that the phases of current and voltage are in the correct sequence.

[0003] Since overhead lines often cover a wide range of areas, including complex terrain and inaccessible areas such as mountainous and forested areas, traditional manual detection methods usually require workers to climb high towers to detect the phase sequence of the line. This not only increases the safety risk of workers, but also faces the danger of high-altitude environment. In some remote mountainous, forested or desert areas, due to complex terrain and frequent natural disasters, it is extremely difficult to check the overhead power transmission lines.

[0004] Publication No. CN120847494A discloses an airborne wireless phase checking and phase setting instrument, which includes a UAV, a main machine, a detector (composed of X detector and Y detector), the main machine selects a 4.3-inch 65K color LCD color screen, which can display phase, frequency, phase sequence and phase checking results on the screen, dynamic vector diagram indication, and the main machine is equipped with a voice prompt module. This technology relates to the specific structure of the phase checking instrument, but when positioning and phase checking in narrow areas with obstacles, the airborne wireless phase checking cannot be adjusted to extend into the area. SUMMARY

[0005] In order to solve the problem of the danger of manual climbing detection and the complexity of the environment in remote areas, and to effectively improve the detection efficiency and ensure the safety of the operation, the present application provides an overhead line phase checking method based on a UAV and an auxiliary device.

[0006] On the one hand, the overhead line phase checking method based on a UAV provided by the present application adopts the following technical solution: An overhead line phase checking method based on a UAV and an auxiliary device divides the execution control terminal into a general control center and a field sub-control group. The general control center is arranged in a remote command facility, and the field sub-control group is temporarily deployed in the detection site. The general control center and the field sub-control group are remotely connected in communication, and perform hierarchical sequence control on the operation of the field equipment. The method includes the following operation steps: The general control center remotely surveys and preliminarily plans the task area by using remote sensing equipment and a map system; The general control center formulates a detection plan according to the survey result, including detection targets, detection time and detection items; After receiving the detection plan formulated by the general control center, the on-site sub-control group conducts on-site survey and deployment according to the detection plan; After receiving the on-site survey feedback from the on-site sub-control group, the general control center remotely starts the detection plan; The on-site sub-control group conducts detection operation according to the predetermined detection plan and collects the detected data; The on-site sub-control group remotely sends the detected data to the general control center in real time; The general control center receives the detected data and stores and analyzes the data.

[0007] By separating the general control center from the on-site sub-control group, remote monitoring and accurate deployment of the task area can be realized. The general control center remotely surveys by using remote sensing equipment and a map system, and the sub-control group efficiently executes on-site operation according to the detection plan. This combination of remote command and on-site execution improves the overall efficiency of detection work. The hierarchical order control of the general control center and the on-site sub-control group can effectively reduce the safety risk of on-site operation personnel. The on-site sub-control group does not need to frequently contact high-voltage lines and complex terrain, and detection work can be carried out in a safe environment. The general control center is responsible for remote monitoring and data processing, ensuring that on-site personnel can execute operation under command, thereby reducing potential safety hazards in the operation process. In terms of data collection and processing, remote communication and real-time data transmission between the general control center and the on-site sub-control group ensure the immediacy and accuracy of detection data. All collected data will be remotely transmitted to the general control center in real time for centralized storage and analysis. This mode ensures the consistency and integrity of data and provides an accurate basis for later decision-making and reporting. In complex and harsh environments, on-site personnel often have difficulty performing routine manual detection. However, the operation mode based on unmanned aerial vehicles and remote control systems can overcome these limitations. The general control center can understand the environmental changes in the task area in advance through remote sensing equipment. The on-site sub-control group can quickly respond and flexibly adjust the operation mode, ensuring that detection can be carried out smoothly even in adverse weather and difficult environments.

[0008] Further, the remote survey information of the general control center includes weather, terrain and line direction; explicitly involves live work and does not involve live work; selects detection target lines and detection points, distributes according to the selected detection target lines and detection points, and determines the number of groups of the on-site sub-control group; determines resource allocation according to the detection task, including the number of unmanned aerial vehicles and ground support equipment.

[0009] The total control center can comprehensively understand the environmental conditions of the detection area through remote investigation information, which helps to formulate accurate detection plans. The monitoring of weather conditions can help avoid high-risk operations in adverse weather. Topographic analysis can help select the best flight path and detection points. Analysis of the route ensures the rational allocation of target lines and detection points, thereby improving the overall accuracy of the operation. By determining whether the task involves live work, potential safety risks can be effectively identified and appropriate preventive measures can be taken. The total control center can conduct scientific resource scheduling in the detection area by reasonably selecting and allocating detection target lines and detection points.

[0010] Further, the field sub-control group reaches the task area according to the allocated detection target line and detection point, and carries the unmanned aerial vehicle and ground support equipment; selects the ground support equipment installation area and the unmanned aerial vehicle take-off and landing point according to the on-site investigation of the ground situation; evaluates the on-site environmental conditions, including wind speed, ambient temperature and ambient humidity.

[0011] After the field sub-control group arrives at the task area, it selects the appropriate ground support equipment installation area and unmanned aerial vehicle take-off and landing point according to the on-site investigation results. Selecting the appropriate ground support equipment installation position can improve the stability and efficiency of the equipment and avoid equipment failure due to unsuitable terrain or environmental conditions. Reasonably selecting the unmanned aerial vehicle take-off and landing point can ensure the safety and smoothness of the unmanned aerial vehicle during take-off, landing and flight, and reduce flight problems caused by environmental factors. In a complex and variable environment, evaluating factors such as wind speed, temperature and humidity can allow the sub-control group to adjust the operation strategy in a timely manner.

[0012] Further, the field sub-control group conducts on-site investigation of the target line and detection point, including the live condition of the overhead line, the height of the overhead line and the position of the obstacle; according to the specific spatial position of the determined detection point, and combining the height of the overhead line and the position of the obstacle, the flight path of the unmanned aerial vehicle is planned.

[0013] The field sub-control group conducts detailed on-site investigation of the target line and detection point, especially the evaluation of the live condition of the overhead line, the height of the line and the position of the obstacle, which helps to plan the most suitable flight path for the unmanned aerial vehicle. By considering these key factors, the unmanned aerial vehicle flight path can avoid high-voltage lines, trees and other obstacles, ensuring the safety and smoothness of the flight, avoiding close flight distances, and reducing the influence of electromagnetic interference during flight.

[0014] Furthermore, the on-site sub-control group sends the information from the on-site survey to the central control center. The central control center assesses the safety of the detection based on the environmental data and the specific spatial location of the detection points, confirming that the data meets safety requirements. The central control center then sends authorization information to the on-site sub-control group to officially start the mission. The on-site sub-control group initiates the detection according to the planned UAV flight path. The UAV hovers at the predetermined measurement point, activates the phase detection device, and collects line voltage and current phase data. The sensor module transmits the detection results to the ground support equipment through real-time data transmission.

[0015] After the on-site control team sends the information from the field survey to the central control center, the central control center can accurately confirm the safety of the mission execution by evaluating the on-site environmental data and the spatial location of the detection points. This assessment based on real-time data not only ensures the safety of the mission but also provides scientific decision support for subsequent operations. After confirming that the data meets the safety requirements, the central control center issues a formal start authorization message. This process ensures that the mission is carried out within a safe framework, avoiding the risks of blindly starting the mission. Through real-time data transmission and two-way communication mechanisms, the on-site control team and the central control center can maintain close collaboration. Through precise flight paths and hovering, the UAV can work stably at the target measurement points. The sensor module quickly feeds back the detection results to the ground support equipment through real-time data transmission. Real-time data transmission ensures that the central control center can obtain on-site detection information in a timely manner, quickly analyze it, and make adjustments to ensure the progress and quality of the operation.

[0016] Furthermore, the on-site control group compares the test results data with preset standards in the analysis software to determine whether the test results data is normal or abnormal; the on-site control group packages and stores the collected test results data according to the specific route and test point, and sends the test results to the central control center in real time; the central control center packages and stores the specific test results data according to the test time and test location, and merges and analyzes it with historical data.

[0017] By comparing the test results with preset standards, the on-site control team can instantly determine whether the data is normal or abnormal. This real-time comparison enables rapid identification of potential faults or anomalies, allowing for timely corrective measures and significantly improving the accuracy and timeliness of testing. The on-site control team packages and stores the test results according to different lines and test points. This packaged storage method not only clearly distinguishes various data items but also improves efficiency in subsequent data processing. The on-site control team sends the test results to the central control center in real time, enabling the central control center to quickly obtain the latest on-site data. This real-time feedback mechanism allows the central control center to make timely analyses and judgments, providing guidance or adjustment instructions. The central control center packages and stores the test results according to test time and location and merges them with historical data for analysis. This operation not only allows for in-depth analysis of the current task but also enables comparison with historical data to identify potential trends and patterns.

[0018] On the other hand, the overhead line phase verification auxiliary device based on UAV provided by the present invention adopts the following technical solution: An overhead line phase comparison auxiliary device based on a drone includes a drone. The drone is connected to the phase comparison instrument probe head via a wire take-up and release device. The drone drives the phase comparison instrument probe head to be attached to the detection point of the line under inspection. The wire take-up and release device includes a wire take-up and release motor, a wire reel, and an insulating rope. The wire take-up and release motor drives the wire reel to rotate and take up and release the wire. The insulating rope is wound on the wire reel. The wire reel controls the raising and lowering of the phase comparison instrument probe head by taking up and releasing the insulating rope.

[0019] By combining a drone with a phase detection instrument probe, precise detection point positioning is achieved through a wire take-up and release device. The drone can hover in the air and precisely attach the phase detection instrument probe to the detection point of the line being inspected. This method effectively ensures that the probe is stably suspended at the target point, ensuring the accuracy of the detection data. Through the cooperation of the drone and the wire take-up and release device, the operation of the device becomes highly automated. The linkage design of the wire take-up and release motor, wire reel, and insulating rope simplifies the operation process, eliminating the need for manual climbing or complex ground equipment operation. This level of automation greatly improves work efficiency and reduces the safety risks that may be caused by manual operation. Through the design of the insulating rope and wire take-up and release device, the device effectively ensures the safety of the drone and phase detection instrument probe when operating at high altitudes, avoiding risks such as electrical short circuits or electric shocks.

[0020] Furthermore, the take-up and release motor and the reel are installed inside a protective housing, which contains a remote control circuit board and a battery. The take-up and release motor and the remote control circuit board are connected to the battery via wires.

[0021] The protective casing protects the built-in take-up and take-off motor, remote control circuit board, and battery from dust, splashes, and impacts from foreign objects, effectively preventing external factors such as rain, dust, and tree branches from corroding or mechanically damaging the motor and circuitry.

[0022] Furthermore, the nuclear phase instrument probe is connected to the UAV and the cable reeling device through the probe connector. The probe connector is equipped with a movable pulley, and the insulating rope is wound around the movable pulley. The movable pulley and the probe connector are connected by an elastic band.

[0023] The introduction of movable pulleys provides smoother lifting and lowering control for the probe head. When the drone and the cable reeling device move the insulating rope during operation, the movable pulleys can reduce rope friction, ensuring the probe head moves smoothly in the vertical direction. The elastic band generates a slight tension between the probe head and the detection point, which can absorb some vibration and impact, reduce the vibration transmission that may occur in high-altitude operations, and protect the stability of the probe head and the drone. Through the cooperation of movable pulleys and elastic bands, the entire system can flexibly adjust the height and position of the probe head to adapt to the detection needs of different lines.

[0024] Furthermore, the drone is connected to a protective shell via a launcher, and a takeoff platform is set at the drone's takeoff and landing point on the ground. The drone communicates with the takeoff platform and can mutually locate and sense each other.

[0025] By setting up a takeoff platform, a stable takeoff and landing environment can be provided, reducing the risks during drone takeoff and landing and ensuring smoother and safer operation. The combination of the takeoff platform and positioning sensors can effectively simplify the tasks of drone operators, reduce the requirements on operators during takeoff, landing and flight, and make drone operation more user-friendly and flexible.

[0026] In summary, the present invention has the following beneficial technical effects: 1. Through the division of labor and cooperation between the central control center and the field sub-control groups, remote monitoring and precise deployment of the task area can be achieved, thereby improving the efficiency and accuracy of the overall testing work.

[0027] 2. The hierarchical and sequential control reduces the safety risks for on-site workers, especially in high-voltage lines and complex terrain, reducing high-risk exposure and ensuring operational safety.

[0028] 3. The central control center conducts remote surveys and planning using remote sensing equipment and a map system, while the on-site sub-control groups execute the detailed testing plans efficiently, reducing manual intervention and improving operational efficiency.

[0029] 4. The on-site sub-control group transmits the test data to the central control center in real time. The central control center can analyze the data immediately to ensure the accuracy of the test results and provide rapid decision support.

[0030] 5. The operation mode based on drones and remote control systems can overcome the limitations of complex environments and severe weather, achieve efficient detection, and ensure that the mission can be carried out smoothly even in difficult environments.

[0031] 6. The on-site control team conducts a detailed survey of the target route, taking into account the electrification status, route height, and obstacle locations to ensure the accuracy and safety of the drone's flight path.

[0032] 7. Through the linkage design of the wire winding and unwinding motor, wire reel, and insulating rope, the automated control of the UAV and the phase detection instrument probe is realized, reducing manual intervention and improving the convenience and efficiency of operation.

[0033] 8. The design of the insulated rope and the cable winding device effectively avoids safety hazards such as electrical short circuits or electric shocks, providing safety assurance for drones and nuclear phase instrument probes when operating at high altitudes.

[0034] 9. The protective casing effectively protects the take-up and reel-out motor, remote control circuit board, and battery, preventing external factors from corroding and damaging the equipment, and improving the stability and reliability of the system.

[0035] 10. All test results will be packaged and stored according to the test time and location, and merged with historical data for analysis to ensure data consistency and integrity, and support subsequent decision-making and report generation. Attached Figure Description

[0036] Figure 1 This is a flowchart of the overhead line phase verification method of the present invention; Figure 2 This is a schematic diagram of the overhead line phase verification auxiliary device of the present invention; Figure 3 This is a schematic diagram of the internal structure of the protective shell of the present invention.

[0037] Explanation of reference numerals in the attached figures: 1. Drone, 2. Launcher, 3. Protective shell, 4. Remote control circuit board, 5. Battery, 6. Line reel motor, 61. Line reel, 7. Insulating rope, 8. Pulley, 9. Elastic band, 10. Detector head connector, 11. Phase detection instrument detector head, 12. Take-off platform. Detailed Implementation

[0038] The following will be combined with the appendix Figures 1-3 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0040] Example 1: This invention discloses a method and auxiliary device for phase verification of overhead power lines based on unmanned aerial vehicles (UAVs), referring to... Figure 1 The execution control terminal is divided into a central control center and field sub-control groups. The central control center is located in a remote command facility, and the field sub-control groups are temporarily deployed at the testing site. The central control center and the field sub-control groups are remotely connected and perform hierarchical sequential control on the operation of field equipment, including the following operation steps: The central control center uses remote sensing equipment and mapping systems to conduct remote surveys and preliminary planning of the mission area; The central control center formulates a testing plan based on the survey results, including testing objectives, testing time, and testing items; After receiving the testing plan from the central control center, the on-site sub-control team conducts on-site surveys and deploys testing according to the plan. After receiving on-site survey feedback from the field control team, the central control center remotely initiated the testing plan; The on-site control team performs testing operations according to the predetermined testing plan and collects the detected data; The on-site control team will remotely transmit the detected data to the central control center in real time; The central control center receives the detection data, stores and analyzes it.

[0041] In this embodiment, the system consists of two parts: a central control center and field control subgroups. The central control center is responsible for remote monitoring, command, and data analysis, while the field control subgroups mainly perform on-site surveys and data acquisition tasks.

[0042] Central Control Center: Located within the remote command facility, it is responsible for remotely surveying, planning, and analyzing data in the mission area, controlling the work progress of the on-site sub-control groups, and storing and analyzing detection data.

[0043] On-site control team: Temporarily deployed at the testing site, responsible for carrying out the actual testing work, receiving the testing plan issued by the central control center, deploying and operating drones for surveying, testing, and data collection, and feeding back real-time data to the central control center.

[0044] The central control center acquires geographic data of the mission area through remote sensing equipment and conducts remote surveys in conjunction with a map system. The surveys include, but are not limited to, the specific location of overhead lines, obstacles in the surrounding environment, and weather conditions. By analyzing the survey data, the central control center can make preliminary plans for the mission area and formulate subsequent detection strategies.

[0045] Based on the preliminary planning results, the central control center will formulate a detailed inspection plan, which includes the following key aspects: determining the specific scope and target objects of the overhead lines to be inspected, such as whether it is necessary to verify whether the lines are damaged or whether there are foreign objects, and arranging appropriate inspection times according to the site environment and weather conditions, including but not limited to line structure inspection, electrical parameter testing, and drone flight path planning.

[0046] After receiving the testing plan from the central control center, the on-site sub-control team immediately conducts on-site surveys. The surveys include actual inspections of the site environment, selection of the drone takeoff preparation area, and confirmation of weather conditions. Based on the survey results, the on-site sub-control team will deploy the drones and other equipment and conduct system checks to ensure that the equipment can operate normally.

[0047] After receiving feedback from the field survey team, the central control center confirms that the field conditions meet the testing requirements and then remotely initiates the testing plan. Through network communication, the central control center issues commands to the field control team, instructing them on the specific testing steps and operational requirements.

[0048] Following remote instructions from the central control center, the on-site sub-control team operates the deployed drones to conduct on-site inspections. The drones are equipped with various sensors, such as infrared cameras, high-resolution cameras, and lidar, to collect data. The drones' flight paths, altitudes, and data acquisition equipment are planned under the guidance of the central control center and adjusted accordingly based on the inspection targets.

[0049] When the drone performs inspection operations, it collects relevant data in real time and transmits the data to the central control center through the communication equipment of the on-site sub-control group. The data includes images, videos, sensor data, etc. This data will help the central control center assess the status of overhead lines and determine whether maintenance or other measures are needed.

[0050] After receiving data from the field sub-control groups, the central control center will store and analyze this data. The data analysis process includes: Data cleaning: Remove noisy data to ensure data validity.

[0051] Data processing: Extract valuable information through algorithms and analysis tools, such as the location of line damage, possible sources of faults, and foreign object intrusion.

[0052] Report generation: Based on the analysis results, the central control center generates a test report to provide decision support to relevant departments.

[0053] Data is stored in the cloud or on local servers to ensure data security and traceability.

[0054] Example 2: Based on Example 1, the following is added: Reference Figure 1 The remote survey information from the central control center includes weather, terrain, and route alignment; it clarifies whether live-line work is involved or not; it selects the target routes and detection points, allocates resources based on the selected target routes and detection points, and determines the number of on-site sub-control groups; and it determines resource allocation based on the needs of the detection task, including the number of drones and ground support equipment.

[0055] The central control center collects real-time data on the mission area through remote sensing equipment and mapping systems, including weather conditions, terrain features, and the route of overhead power lines. This information helps to provide a basis for subsequent operation planning.

[0056] Data such as wind speed, ambient temperature, and humidity are collected, as these factors directly affect the flight stability and safety of drones. The terrain, route height, and distribution of nearby buildings or obstacles are analyzed to ensure that the drone's flight path is unobstructed. High-precision maps and remote sensing data are used to determine the route, the distribution of important facilities such as bridges and towers.

[0057] The central control center determines whether live-line work is required based on the energization status of the on-site lines. If live-line work is required, additional safety precautions are taken, such as using insulating materials and equipment, to ensure the safety of personnel and equipment.

[0058] Based on the survey data, select the target lines and key inspection points that need to be inspected, such as power towers, important joints, and severely damaged parts, to ensure comprehensive coverage of the inspection area.

[0059] The number of on-site control groups is determined based on the length and complexity of the target route and the urgency of the task. Each control group is responsible for the survey and testing of a specific area.

[0060] Based on the scale and requirements of the mission, allocate resources reasonably and determine the number and type of drones, such as multi-rotor drones and fixed-wing drones. At the same time, prepare necessary ground support equipment, such as data receiving terminals and sensor modules.

[0061] Reference Figure 1The on-site control team arrives at the mission area with drones and ground support equipment, according to the assigned detection target route and detection points; based on the on-site survey of the ground conditions, the team selects the installation area for the ground support equipment and the take-off and landing point for the drones; and assesses the on-site environmental conditions, including wind speed, ambient temperature, and ambient humidity.

[0062] Reference Figure 1 The on-site control team conducts on-site surveys of the target line and detection points, including the energization status of the overhead lines, the height of the overhead lines, and the location of obstacles; based on the specific spatial location of the determined detection points, and in combination with the height of the overhead lines and the location of obstacles, the team plans the flight path of the UAV.

[0063] The on-site control team arrived at the mission area with drones and ground support equipment and conducted a preliminary on-site survey, including monitoring real-time data such as wind speed, ambient temperature, and humidity. They selected an appropriate installation area for the ground support equipment to ensure stable operation and chose take-off and landing points for the drones, avoiding locations with obstacles.

[0064] Based on real-time environmental data, it is determined whether the conditions meet the requirements for drone flight and inspection. Factors such as excessive wind speed, excessively low or high temperature, and excessive humidity can all affect the drone's flight stability and the accuracy of its sensors. The on-site control team records the energization status of the target lines, the height of the overhead lines, and the location of surrounding obstacles. This data helps in planning the drone's flight path and the accurate location of inspection points.

[0065] Reference Figure 1 The on-site sub-control group sends the information from the on-site survey to the central control center. The central control center assesses the safety of the detection based on the environmental data and the specific spatial location of the detection points, confirming that the data meets safety requirements. The central control center then sends authorization information to the on-site sub-control group to officially start the mission. The on-site sub-control group starts the detection according to the planned UAV flight path. The UAV hovers at the predetermined measurement point and activates the phase detection device to collect line voltage and current phase data. The sensor module transmits the detection results to the ground support equipment through real-time data transmission.

[0066] Based on the location of the target line, the height of the overhead line, the distribution of obstacles, and weather conditions, the on-site control team formulates the flight path of the UAV. The flight path should avoid high-voltage power lines and other areas that may cause interference. The on-site survey results are sent to the central control center, including the energization status of the line, the location of obstacles, environmental data, etc. After evaluating the data, the central control center confirms the safety and sends a formal mission start command to the on-site control team.

[0067] As instructed by the central control center, the on-site sub-control group initiated the detection mission. The UAV flew to the designated detection point, hovered, and activated the phase detection device to collect voltage and current phase data. The sensor module transmitted the data to the ground support equipment in real time.

[0068] Reference Figure 1 The on-site control group compares the test results data with preset standards in the analysis software to determine whether the test results data is normal or abnormal. The on-site control group packages and stores the collected test results data according to the specific route and test point, and sends the test results to the central control center in real time. The central control center packages and stores the specific test results data according to the test time and test location, and merges and analyzes it with historical data.

[0069] During the inspection process, the UAV uses phase detection devices and sensors to collect voltage and current phase data, and transmits the data to ground support equipment through a real-time data transmission system. The on-site control team compares the collected inspection data with preset standards to determine whether the data is normal or abnormal. If the inspection data is abnormal, the on-site control team needs to report to the central control center immediately to decide on subsequent handling measures. The on-site control team packages and stores the collected data according to the specific inspection points and line conditions, and sends it to the central control center in real time. After receiving the data, the central control center packages and stores it according to the inspection time and location, and merges it with historical data for analysis.

[0070] The central control center analyzes all the detection data and generates a detection report, which includes the voltage phase of each detection point, possible abnormalities, and detection recommendations.

[0071] Example 3: This invention discloses a method and auxiliary device for phase verification of overhead power lines based on unmanned aerial vehicles (UAVs), referring to... Figure 2 and Figure 3 The system includes a drone 1, which is connected to a phase detection instrument probe 11 via a wire take-up and release device. The drone 1 drives the phase detection instrument probe 11 to be attached to the detection point of the line under inspection. The wire take-up and release device includes a wire take-up and release motor 6, a wire reel 61, and an insulating rope 7. The wire take-up and release motor 6 drives the wire reel 61 to rotate and take up and release the wire. The insulating rope 7 is wound around the wire reel 61. The wire reel 61 controls the raising and lowering of the phase detection instrument probe 11 by taking up and releasing the insulating rope 7.

[0072] The UAV 1 is equipped with a wire take-up and release device and a phase detection instrument probe 11, which is responsible for performing detection tasks. The phase detection instrument probe 11 is used to detect the voltage phase of the overhead line. It is installed on the UAV 1 and is raised and lowered by the wire take-up and release device. The wire take-up and release device consists of a wire take-up and release motor 6, a wire reel 61 and an insulating rope 7. It is used to control the raising and lowering of the phase detection instrument probe 11 on the overhead line to ensure that the probe can be accurately aligned with the detection point. The wire take-up and release motor 6 drives the wire reel 61 to rotate, realizing the take-up and release operation of the insulating rope 7. The wire reel 61 is equipped with the insulating rope 7. The take-up and release motor 6 controls the take-up and release of the rope, thereby adjusting the position of the phase detection instrument probe 11. The insulating rope 7 is made of high-strength insulating rope and is wound on the wire reel 61 to ensure the stable hovering and raising and lowering of the probe during the flight of the UAV 1.

[0073] Connect the UAV 1 to the nuclear phase instrument probe head 11 and ensure that all equipment is in normal working condition. The UAV 1 should check whether the battery power, flight control system, sensors and other equipment are functioning properly. Based on the environmental data of the site survey, the location of overhead lines and the distribution of obstacles, plan the flight path of the UAV 1. The flight path should avoid direct proximity to high-voltage lines and ensure flight safety.

[0074] The phase detection instrument probe 11 is connected to the UAV 1 via a take-up and release device. The take-up and release device is connected to the wire reel 61 via an insulating rope 7, ensuring that the position of the phase detection instrument probe can be adjusted by the take-up and release motor 6. According to the requirements of the detection task, the phase detection instrument probe 11 is ensured to be attached to the detection point of the line being tested. The rotation of the take-up and release motor 6 controls the rotation of the wire reel 61, thereby realizing the take-up and release of the insulating rope 7 and adjusting the height of the probe.

[0075] The UAV 1 takes off and flies to the target detection area, ensuring that it hovers stably above the target line. During flight, environmental factors such as wind speed and temperature need to be monitored at all times to ensure flight stability. Through the wire take-up and release device, the wire take-up and release motor 6 controls the rotation of the wire reel 61, thereby adjusting the length of the insulating rope 7. The phase comparison instrument probe head 11 is raised and lowered to ensure that the probe head is accurately aligned with the detection point of the overhead line. The phase comparison instrument probe head 11 hovers above the target detection point and activates the voltage phase detection function. The probe head wirelessly transmits the detected voltage and current phase data to the ground support equipment or the central control center in real time.

[0076] The phase detection head 11 of the nuclear phase instrument collects voltage and current phase data of the target overhead line through its sensor. The data collection process should ensure the accuracy of the sensor and avoid environmental interference. The collected data is transmitted to the ground support equipment in real time through the communication link, or sent to the central control center for storage and analysis through wireless communication.

[0077] After all voltage phase data from all detection points have been collected, UAV 1 returns to its original starting point, performs a landing operation, and after completing the mission, checks the status of UAV 1 and its equipment to confirm that the equipment is undamaged and prepares for the next mission.

[0078] Example 4: Based on Example 3, the following is added: Refer to 2 and Figure 3 The take-up and release motor 6 and the reel 61 are installed inside the protective housing 3. The protective housing 3 contains a remote control circuit board 4 and a battery 5. The take-up and release motor 6 and the remote control circuit board 4 are connected to the battery 5 via wires.

[0079] Refer to 2 and Figure 3 The nuclear phase instrument probe 11 is connected to the UAV 1 and the cable take-up and release device through the probe connector 10. The probe connector 10 is provided with a movable pulley 8, and the insulating rope 7 is wound around the movable pulley 8. The movable pulley 8 and the probe connector 10 are connected by an elastic band 9.

[0080] Reference Figure 2 The UAV 1 is connected to the protective shell 3 via a launcher 2. A take-off platform 12 is set at the take-off and landing point of the UAV 1 on the ground. The UAV 1 is communicatively connected to the take-off platform 12 and can be mutually positioned and sensed.

[0081] The protective housing 3 is a closed structure mainly used to protect the internal equipment from external environmental factors. It contains the following devices: a take-up and release motor 6, which controls the rotation of the wire reel 61, thereby adjusting the take-up and release of the insulating rope 7, and thus adjusting the position of the phase comparison instrument probe. The wire reel 61 is connected to the take-up and release motor 6, which winds the insulating rope 7 and controls the raising and lowering of the phase comparison instrument probe. The remote control circuit board 4 is used to control the power management and signal transmission of the system. The battery 5 provides power to all the equipment inside the protective housing 3 to ensure the normal operation of the system. All components are connected by wires. The battery 5 provides power to the take-up and release motor 6, the remote control circuit board 4, etc.

[0082] The phase detection instrument probe 11 is used to detect the voltage phase of overhead lines. The phase detection instrument probe 11 is connected to the UAV 1 and the wire take-up and release device through the probe connector 10. The probe connector 10 is equipped with a movable pulley 8, and the movable pulley 8 is connected to the probe connector 10 through an elastic band 9. The insulating rope 7 is wound around the movable pulley 8, and its lifting and lowering are controlled by the wire take-up and release motor 6 to ensure that the phase detection instrument probe 11 can be accurately positioned.

[0083] The drone 1 is connected to the protective shell 3 via the launcher 2. When the drone 1 takes off, it is released from the takeoff platform 12 via the launcher 2 and flies. The takeoff platform 12 is provided to support the takeoff and landing of the drone 1. The drone 1 and the takeoff platform 12 are connected by communication, which enables position sensing and automatic positioning.

[0084] After the UAV 1 flies to the target detection area, it uses the cable take-up and release device to adjust the position of the phase detection instrument probe 11. The cable take-up and release motor 6 controls the rotation of the cable reel 61, thereby adjusting the length of the insulating rope 7 to ensure that the phase detection instrument probe 11 is accurately aligned with the overhead line. The movable pulley 8, through its connection with the elastic band 9, plays a buffering role during the lifting and lowering of the phase detection instrument probe 11, ensuring the smooth lifting and lowering of the phase detection instrument probe 11 and avoiding the impact of vibration caused by rapid movement on the accuracy of the data. The phase detection instrument probe 11 begins to detect the voltage phase of the overhead line, and the detected voltage data is transmitted in real time to the ground support equipment or the central control center via wireless signal.

[0085] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the invention, and all such modifications and additions should fall within the protection scope of the present invention.

Claims

1. A method for phase verification of overhead power lines based on unmanned aerial vehicles (UAVs), comprising a central control center and field control groups, wherein the central control center is located in a remote command facility, and the field control groups are temporarily deployed at the testing site; the central control center and the field control groups are remotely connected and perform hierarchical sequential control on the operation of field equipment; characterized in that... The following steps are included: The central control center uses remote sensing equipment and mapping systems to conduct remote surveys and preliminary planning of the mission area; The central control center formulates a testing plan based on the survey results, including testing objectives, testing time, and testing items; After receiving the testing plan from the central control center, the on-site sub-control team conducts on-site surveys and deploys testing according to the plan. After receiving on-site survey feedback from the field control team, the central control center remotely initiated the testing plan; The on-site control team performs testing operations according to the predetermined testing plan and collects the detected data; The on-site control team will remotely transmit the detected data to the central control center in real time; The central control center receives the detection data, stores and analyzes it.

2. The method for phase verification of overhead lines based on unmanned aerial vehicles according to claim 1, characterized in that: The remote survey information from the central control center includes weather, terrain, and route information; it clearly identifies whether live-line work is involved or not. Select the target inspection route and inspection points, allocate them according to the selected target inspection route and inspection points, and determine the number of groups in the on-site control group; Resource allocation, including the number of drones and ground support equipment, is determined based on the needs of the testing mission.

3. The method for phase verification of overhead lines based on unmanned aerial vehicles according to claim 2, characterized in that: The on-site control team arrives at the mission area according to the assigned detection target route and detection points, carrying drones and ground support equipment; based on the on-site survey of the ground conditions, the team selects the installation area for the ground support equipment and the take-off and landing point for the drones; and assesses the on-site environmental conditions, including wind speed, ambient temperature, and ambient humidity.

4. The method for phase verification of overhead lines based on unmanned aerial vehicles according to claim 3, characterized in that: The on-site control team conducts on-site surveys of the target line and detection points, including the energization status of the overhead lines, the height of the overhead lines, and the location of obstacles; based on the specific spatial location of the determined detection points, and in combination with the height of the overhead lines and the location of obstacles, the team plans the flight path of the UAV.

5. The method for phase verification of overhead lines based on unmanned aerial vehicles according to claim 4, characterized in that: The on-site sub-control group sends the information from the on-site survey to the central control center. The central control center assesses the safety of the detection based on the environmental data and the specific spatial location of the detection points, and confirms that the data meets the safety requirements. The central control center then sends authorization information to the on-site sub-control group to officially start the mission. The on-site sub-control group starts the detection according to the planned UAV flight path. The UAV hovers at the predetermined measurement point, activates the phase detection device, and collects line voltage and current phase data. The sensor module transmits the detection results to the ground support equipment via real-time data transmission.

6. The method for phase verification of overhead lines based on unmanned aerial vehicles according to claim 5, characterized in that: The on-site control group compares the test results data with preset standards in the analysis software to determine whether the test results data is normal or abnormal. The on-site control group packages and stores the collected test results data according to the specific route and test point, and sends the test results to the central control center in real time. The central control center packages and stores the specific test results data according to the test time and test location, and merges and analyzes it with historical data.

7. An overhead line phase comparison auxiliary device based on a drone, comprising a drone (1), wherein the drone (1) is connected to the phase comparison instrument probe head (11) via a cable reeling device, and the drone (1) drives the phase comparison instrument probe head (11) to be attached to the detection point of the line under inspection, characterized in that: The take-up and release device includes a take-up and release motor (6), a wire reel (61), and an insulating rope (7). The take-up and release motor (6) drives the wire reel (61) to rotate and take up and release the wire. The insulating rope (7) is wound on the wire reel (61). The wire reel (61) controls the raising and lowering of the phase detection instrument probe (11) by taking up and releasing the insulating rope (7).

8. The overhead line phase comparison auxiliary device based on UAV according to claim 7, characterized in that: The take-up and release motor (6) and the reel (61) are installed inside the protective housing (3). The protective housing (3) contains a remote control circuit board (4) and a battery (5). The take-up and release motor (6) and the remote control circuit board (4) are connected to the battery (5) via wires.

9. The overhead line phase comparison auxiliary device based on UAV according to claim 8, characterized in that: The nuclear phase instrument probe (11) is connected to the UAV (1) and the cable take-up and release device through the probe connector (10). The probe connector (10) is provided with a movable pulley (8). The insulating rope (7) is wound around the movable pulley (8). The movable pulley (8) and the probe connector (10) are connected by an elastic band (9).

10. The overhead line phase comparison auxiliary device based on UAV according to claim 8, characterized in that: The UAV (1) is connected to the protective shell (3) via a launcher (2). A take-off platform (12) is set at the UAV take-off and landing point on the ground. The UAV (1) and the take-off platform (12) are connected in communication and mutually located and sense each other.

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