Lightning protection early warning method and system for power capital construction mooring unmanned aerial vehicle

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and discloses a lightning protection early warning method and system for an electric power capital construction mooring unmanned aerial vehicle, and the method comprises the steps: arranging a voltage induction module on the mooring unmanned aerial vehicle, obtaining high-altitude positive and negative voltage data, and triggering an early warning protection program through an intelligent control system when a safety threshold value is exceeded, a high-altitude operation early warning broadcast is sent out through a loudspeaker module on the unmanned aerial vehicle; the intelligent control system controls the power supply switching module and the driving motor to drive the cable connector to move, so that the mooring cable is separated from the unmanned aerial vehicle, the mooring unmanned aerial vehicle is automatically switched to a backup power supply energy source and hovers at the high altitude through the high-altitude hovering module, and emergency lighting is provided through the lighting device; according to the method, active early warning and protection of thunder and lightning risks are achieved through the synergistic effect of all the functional modules, the safety of high-altitude operation in the electric power infrastructure construction process is improved, and safe operation of personnel and equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a lightning protection and early warning method and system for a tethered unmanned aerial vehicle for electric power infrastructure. Background Art

[0002] In the construction and maintenance of power infrastructure, especially in high-altitude operations involving high-voltage lines and equipment, it is crucial to ensure the safety of personnel and equipment. Tethered drones have been widely used in nighttime lighting, emergency repairs, disaster prevention and mitigation, and emergency rescue due to their flexibility and efficiency. They can provide continuous high-altitude operation support during the zero-point repair of the distribution network in summer and the window period across the electric railway, providing operators with real-time environmental monitoring and lighting, and improving construction efficiency and safety.

[0003] However, existing drone technology still has some shortcomings when applied to power infrastructure; traditional tethered drones are usually connected to the ground power supply system through cables, lack the ability to monitor the electric field and voltage changes in the high altitude in real time, and cannot timely warn of potential lightning risks. In addition, when encountering sudden thunderstorms, these drones lack a mechanism to automatically disconnect from the ground power supply system, and cannot prevent lightning current from passing through the tethered cables to damage the drone and ground equipment. At the same time, after the power is cut off, the drone also lacks the ability to hover stably and continue to provide lighting, which may lead to interruptions in high-altitude operations and safety hazards.

[0004] The above shortcomings limit the application of UAVs in severe weather conditions, and there is an urgent need for an improved solution that can actively warn and protect against lightning risks. Summary of the invention

[0005] The purpose of the present invention is to provide a lightning protection warning method and system for a tethered UAV of an electric power infrastructure to solve the above technical problems.

[0006] To achieve this object, the present invention adopts the following technical solutions: A lightning protection and early warning method for a tethered UAV for power infrastructure construction, comprising: A voltage sensing module is provided on the tethered drone to monitor the electric field strength and voltage changes in the high-altitude environment in real time and obtain high-altitude positive and negative voltage data; When the positive and negative voltage data at high altitude exceeds the preset safety threshold, the intelligent control system triggers the early warning protection program and issues an early warning broadcast for high altitude operations through the speaker module on the drone; The intelligent control system controls the power supply switching module, and the driving motor drives the cable connector to move, so that the tethered cable is separated from the drone, thus disconnecting it from the ground power supply system. After the tethering cable is separated, the tethered drone automatically switches to a backup power supply energy source, hovers in the air through a high-altitude hovering module, and provides emergency lighting through a lighting device.

[0007] Optionally, when the high-altitude positive and negative voltage data exceeds a preset safety threshold, the intelligent control system triggers a warning protection program and issues a high-altitude operation warning broadcast through a speaker module on the drone, specifically including: When the voltage sensing module detects that the positive and negative voltage data at high altitude exceeds a preset safety threshold, a voltage abnormality signal is generated and the voltage abnormality signal is transmitted to the intelligent control system; After receiving the abnormal voltage signal, the intelligent control system starts the early warning protection program, conducts a risk assessment on the current high-altitude working environment, and determines the early warning level; According to the warning level, the intelligent control system sends out corresponding high-altitude operation warning broadcasts through the speaker module on the drone to remind operators to pay attention to abnormal voltage conditions at high altitudes and recommend taking safety protection measures or evacuating immediately.

[0008] Optionally, when the high-altitude positive and negative voltage data exceeds a preset safety threshold, the intelligent control system triggers a warning protection program, and issues a high-altitude operation warning broadcast through a speaker module on the drone, further comprising: The intelligent control system controls the warning light on the tethered drone to flash at a preset frequency to provide a visual warning signal; The intelligent control system stores voltage anomaly data, warning broadcast content and time stamp records in an internal memory, and transmits the summary information to the ground control center in real time through the communication module.

[0009] Optionally, the intelligent control system controls the power supply switching module to drive the motor to drive the cable connector to move, so that the tethered cable is separated from the drone, thereby disconnecting the drone from the ground power supply system, specifically including: The intelligent control system receives the voltage abnormality signal and analyzes the risk level of the current environment. When the risk level reaches a preset threshold, the system starts the operation procedure of the power supply switching module; The intelligent control system sends a driving signal to the motor, and the driving motor drives the joint locking mechanism of the tethered cable to perform a release operation, so that the connection between the tethered cable and the drone is gradually loosened, and the tethered cable is ready to be disconnected; After the connector of the tethered cable is released, the motor continues to drive to move the connector of the tethered cable to a separation position, completely disconnecting the electrical connection between the drone and the ground power supply system; After detecting that the tethered cable is completely separated from the drone, the intelligent control system switches the tethered drone to the backup power supply mode and immediately records the time point of the separation operation and the parameter information of the backup power supply.

[0010] Optionally, the step of immediately recording the time point of the separation operation and separation parameter information may further include: After the power supply is switched to the backup power supply mode, the intelligent control system sends a confirmation signal to the ground control center through the communication module and prepares to enter the emergency lighting and hovering state.

[0011] Optionally, after the tethered cable is separated, the tethered drone automatically switches to a backup power supply energy source, hovers in the air through a high-altitude hovering module, and provides emergency lighting through a lighting device, specifically including: The intelligent control system detects the power level and power supply status of the backup power supply and confirms that the backup power supply is normal; The attitude and position of the tethered drone are adjusted through the high-altitude hovering module, and the flight attitude of the tethered drone is corrected in real time using the built-in gyroscope and accelerometer; Activate the lighting device on the drone, and the intelligent control system adjusts the lighting intensity according to the ambient brightness and operation requirements; After the drone switches to the backup power supply and hovers stably, the intelligent control system continuously monitors the operating status of the tethered drone and the changes in positive and negative voltages at high altitudes to adjust the drone's hovering strategy and lighting mode.

[0012] Optionally, after the tethering cable is separated, the tethered drone automatically switches to a backup power supply energy source, hovers in the air through a high-altitude hovering module, and provides emergency lighting through a lighting device, and then further includes: The camera on the tethered drone is used to capture the ground environment image in real time, generate environmental monitoring data, and evaluate whether the conditions for the safe drop of the tethered cable are met. If so, the intelligent control system controls the tethered cable to drop; if not, the tethered drone is controlled to hover to the next position and the corresponding environmental monitoring data is re-evaluated; The tethered drone continues to monitor changes in the high-altitude voltage environment through the voltage sensing module. When the high-altitude positive and negative voltage data returns to a safe range, the intelligent control system controls the tethered drone to descend, restore the connection with the tethering cable, re-establish the electrical connection with the ground power supply system, and restore normal power supply and communication functions.

[0013] Optionally, the step of using a camera on the tethered drone to capture a ground environment image in real time, generating environmental monitoring data, and evaluating whether the conditions for the tethered cable to be safely dropped are met specifically includes: The tethered drone uses a camera mounted on it to take real-time photos of the ground environment below and around the tethered drone to obtain environmental image data; The acquired environmental image data is transmitted to the intelligent control system, and the intelligent control system preprocesses the image data, wherein the preprocessing includes image denoising, enhancement and correction; The intelligent control system analyzes the pre-processed image data and uses image recognition algorithms based on feature extraction and pattern recognition to identify and classify personnel, equipment, obstacles and terrain features in the ground environment; Optionally, the identifying and classifying of personnel, equipment, obstacles and terrain features in the ground environment further includes: Based on the identification and classification results, the intelligent control system builds a digital model of the ground environment, evaluates the location, size and distribution of each potential risk factor, and calculates the safety factor of the area where the moored cable falls; The intelligent control system compares the calculated safety factor with the preset safety threshold to evaluate whether the current environment meets the conditions for the safe drop of the tethered cable.

[0014] The present invention also provides a lightning protection warning system for a tethered UAV for electric power infrastructure, which is implemented by the lightning protection warning method for a tethered UAV for electric power infrastructure as described above. The lightning protection warning system comprises: The tethered drone body; Voltage sensing module, used to monitor the electric field strength and voltage changes in high-altitude environment in real time, and obtain high-altitude positive and negative voltage data; Intelligent control system to process voltage data and assess risk levels; The power supply switching module is used to control the drone to switch between the main power supply and the backup power supply.

[0015] A motor drive unit, used to drive the motor to drive the cable connector to move, so that the tethered cable is separated from the drone; Cable connector locking mechanism for securing or releasing the connection of a tethered cable; A backup power supply unit is used to provide backup power to the drone after it is disconnected from the ground power supply; Lighting devices, used to provide emergency lighting functions; The camera module is used to capture the ground environment in real time and provide environmental monitoring data; The speaker module is used to issue warning broadcasts for high-altitude operations.

[0016] Communication module, used for data transmission and status reporting with the ground control center; The hovering module is used to maintain the tethered drone in a hovering state at high altitude.

[0017] Compared with the prior art, the present invention has the following beneficial effects: a voltage sensing module is installed on a tethered UAV to monitor the electric field strength and voltage changes in a high-altitude environment in real time and obtain high-altitude positive and negative voltage data; when the monitored high-altitude positive and negative voltage data exceeds a preset safety threshold, the intelligent control system triggers an early warning protection program, and issues an early warning broadcast for high-altitude operations through a speaker module on the UAV, reminding operators to pay attention to safety and evacuate dangerous areas in a timely manner; the intelligent control system controls a power supply switching module, drives a motor to drive a cable connector to move, separates the tethered cable from the UAV, cuts off the connection with the ground power supply system, and prevents lightning current from being transmitted to ground equipment through the tethered cable; after the tethered cable is separated, the tethered UAV automatically switches to a backup power supply energy source, stably hovers at high altitude through a high-altitude hovering module, and provides emergency lighting through a lighting device, ensuring that necessary lighting support can still be provided for the site in the event of a power outage; the method realizes active early warning and protection against lightning risks through the synergistic effect of various functional modules, improves the safety of high-altitude operations during power infrastructure construction, and ensures the safe operation of personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0020] Figure 1 This is one of the flow diagrams of the lightning protection warning method for the tethered UAV of the power infrastructure of the first embodiment; Figure 2 This is a second flow chart of the lightning protection warning method for the tethered UAV of the power infrastructure of the first embodiment; Figure 3 This is a third flow chart of the lightning protection warning method for the tethered UAV of the power infrastructure of the first embodiment; Figure 4 This is a schematic diagram of the structure of a UAV of the lightning protection warning system for the tethered UAV for electric power infrastructure according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] Embodiment 1: Combination Figures 1 to 3 As shown, an embodiment of the present invention provides a lightning protection warning method for a tethered UAV for power infrastructure, comprising: S1, a voltage sensing module is set on the tethered drone to monitor the electric field strength and voltage changes in the high-altitude environment in real time and obtain high-altitude positive and negative voltage data; wherein the voltage sensing module is an inductive inductor; Through real-time monitoring of high-altitude electric fields, potential lightning activities can be discovered in a timely manner. When the electric field strength and voltage change abnormally, it indicates that there may be a risk of lightning activities, providing key data support for subsequent early warning and protective measures.

[0025] S2, when the positive and negative voltage data at high altitude exceeds the preset safety threshold, the intelligent control system triggers the early warning protection program and issues an early warning broadcast for high-altitude operations through the speaker module on the drone, reminding operators to evacuate the dangerous area in time; The drone uses its speaker module to send out a warning broadcast for high-altitude operations, reminding on-site operators to evacuate the dangerous area in time to avoid the threat of lightning strikes. This step ensures that personnel can get sufficient warning time before the danger comes and take necessary safety measures.

[0026] S3, the intelligent control system controls the power supply switching module, and the driving motor drives the cable connector to move, so that the tethered cable is separated from the UAV, disconnecting it from the ground power supply system, and preventing the lightning current from being conducted through the tethered cable.

[0027] By disconnecting the tethered cables, lightning current is prevented from being transmitted through the cables to ground equipment and personnel, reducing the risk of damage to the system caused by lightning strikes.

[0028] S4, after the tethered cable is separated, the tethered drone automatically switches to the backup power supply, hovers in the air through the high-altitude hovering module, and provides emergency lighting through the lighting device. It provides the necessary light source for the ground to ensure the lighting needs of the site, while continuing to monitor the surrounding environment.

[0029] The working principle of the present invention is as follows: a voltage sensing module is installed on a tethered UAV to monitor the electric field strength and voltage changes in a high-altitude environment in real time and obtain high-altitude positive and negative voltage data; when the monitored high-altitude positive and negative voltage data exceeds a preset safety threshold, the intelligent control system triggers an early warning protection program, and issues a high-altitude operation early warning broadcast through a speaker module on the UAV, reminding operators to pay attention to safety and evacuate the dangerous area in time; the intelligent control system controls a power supply switching module, drives a motor to drive a cable connector to move, separates the tethered cable from the UAV, cuts off the connection with the ground power supply system, and prevents lightning current from being transmitted to ground equipment through the tethered cable; after the tethered cable is separated, the tethered UAV automatically switches to a backup power supply energy source, stably hovers at high altitude through a high-altitude hovering module, and provides emergency lighting through a lighting device, ensuring that necessary lighting support can still be provided for the site in the event of a power outage; the method realizes active early warning and protection of lightning risks through the synergistic effect of various functional modules, improves the safety of high-altitude operations in the process of power infrastructure construction, and ensures the safe operation of personnel and equipment.

[0030] In this embodiment, it is specifically described that step S2 specifically includes: S21, when the voltage sensing module detects that the positive and negative voltage data at high altitude exceeds the preset safety threshold, it generates a voltage abnormality signal and transmits the voltage abnormality signal to the intelligent control system; The voltage sensing module continuously monitors the electric field strength and voltage changes in the high-altitude environment. When the voltage data is detected to exceed the preset safety threshold, it indicates that there may be lightning activity or other electrical hazards in the high altitude. The voltage sensing module immediately generates a voltage anomaly signal and transmits this key information to the intelligent control system in a timely manner so that corresponding protective measures can be taken quickly.

[0031] S22, after receiving the voltage abnormality signal, the intelligent control system starts the early warning protection program, conducts a risk assessment on the current high-altitude working environment, and determines the early warning level; After receiving the voltage anomaly signal, the intelligent control system immediately enters the alert state. The system conducts a comprehensive risk assessment of the current high-altitude working environment based on the degree, duration and change trend of the voltage anomaly. By analyzing this data, the intelligent control system can determine the level of warning (such as general warning, severe warning, etc.) so as to take appropriate response measures to ensure the safety of personnel and equipment.

[0032] S23, according to the warning level, the intelligent control system sends out the corresponding high-altitude operation warning broadcast through the speaker module on the drone to remind operators to pay attention to abnormal voltage at high altitudes and recommend taking safety protection measures or evacuating immediately.

[0033] After determining the warning level, the intelligent control system uses the drone's speaker module to send a corresponding warning broadcast to ground operators. The broadcast content varies according to the warning level and may include warning information, a description of the degree of danger, and a recommended course of action, such as strengthening protection, suspending operations, or immediately evacuating the site. The sound warning ensures that operators can promptly understand the abnormal situation of high-altitude voltage and quickly take appropriate safety measures.

[0034] In this embodiment, it is further explained that the following steps are included after step S23: S24, the intelligent control system controls the warning light on the tethered drone to flash at a preset frequency to provide a visual warning signal; enhance the warning effect and ensure that the warning information can still be perceived in a timely manner in a noisy environment; To enhance the warning effect, the intelligent control system also controls the warning lights on the drone to flash at a preset frequency, sending out eye-catching visual warning signals. This is especially important for operators who may be in a noisy environment or have limited hearing. The combination of visual warnings and sound warnings ensures that the warning information can be fully and promptly conveyed to all relevant personnel, improving the effectiveness of safety protection.

[0035] S25, the intelligent control system stores the voltage anomaly data, warning broadcast content and time stamp records in the internal memory, and transmits the summary information to the ground control center in real time through the communication module for remote monitoring and subsequent safety analysis.

[0036] In order to track and analyze abnormal events, the intelligent control system will record key data such as voltage anomaly data, warning broadcast content, and event timestamps in the internal memory. At the same time, the system sends this summary information to the ground control center in real time through the communication module. The ground control center can use this data to conduct in-depth risk assessments, formulate emergency response strategies, and monitor and manage the operation of the drone.

[0037] In this embodiment, it is specifically described that step S3 specifically includes: S31, the intelligent control system receives the voltage abnormality signal and analyzes the risk level of the current environment. When the risk level reaches a preset threshold, the system starts the operation procedure of the power supply switching module; S32, the intelligent control system sends a driving signal to the motor, and the driving motor drives the joint locking mechanism of the tethered cable to perform a release operation, so that the connection between the tethered cable and the drone is gradually loosened, and the tethered cable is ready to be disconnected; S33, after the connector of the tethering cable is released, the motor continues to drive to move the connector of the tethering cable to the separation position, completely disconnecting the electrical connection between the drone and the ground power supply system; forming physical and electrical isolation to prevent lightning current from being conducted through the tethering line.

[0038] S34, after detecting that the tethered cable is completely separated from the drone, the intelligent control system switches the tethered drone to the backup power supply mode and immediately records the time of the separation operation and the parameter information of the backup power supply. The parameter information of the backup power supply includes parameters such as voltage, current, and remaining power, ensuring the traceability and safety of the power supply switching process.

[0039] S35, after the power supply is switched to the backup power supply mode, the intelligent control system sends a confirmation signal to the ground control center through the communication module, reporting that the power supply switch has been successfully completed and is ready to enter the emergency lighting and hovering state to ensure the continuous operation of the drone and the safety of the operator.

[0040] In this embodiment, it is specifically explained that step S4 specifically includes: S41, the intelligent control system detects the power and power supply status of the backup power supply, confirms that the backup power supply is normal; and records the voltage, current, remaining power and other parameters of the backup power supply, and predicts the battery life to facilitate subsequent operation management.

[0041] S42, adjust the attitude and position of the tethered drone through the high-altitude hovering module, use the built-in gyroscope and accelerometer to correct the flight attitude of the tethered drone in real time; resist high-altitude wind and airflow disturbances, and hover stably at a predetermined high-altitude position. This process can be completed through the preset internal storage hovering program of the tethered drone.

[0042] S43, activate the lighting device on the drone, and the intelligent control system adjusts the lighting intensity according to the ambient brightness and operation requirements; provide sufficient emergency lighting to ensure that ground operators still have a good view in emergency situations. At the same time, the lighting device can emit a specific flashing signal as a visual warning of the emergency state.

[0043] S44, after the drone switches to the backup power supply and hovers stably, the intelligent control system continuously monitors the operating status of the tethered drone and the changes in the positive and negative voltages at high altitudes to adjust the drone's hovering strategy and lighting mode.

[0044] It is further explained that, after step S4, the following steps are also included: S5, uses the camera on the tethered drone to capture the ground environment image in real time, generates environmental monitoring data, and evaluates whether the conditions for the safe drop of the tethered cable are met. If so, the intelligent control system controls the tethered cable to drop; if not, the tethered drone is controlled to hover at the next position and the corresponding environmental monitoring data is re-evaluated to ensure that the drop of the tethered cable will not cause danger to ground personnel and equipment.

[0045] S6, the tethered drone continues to monitor the changes in the high-altitude voltage environment through the voltage sensing module. When the high-altitude positive and negative voltage data returns to a safe range, the intelligent control system controls the tethered drone to descend, restore the connection with the tethered cable, re-establish the electrical connection with the ground power supply system, and restore normal power supply and communication functions. Subsequently, the normal power supply and communication functions are restored, allowing the drone to return to normal working status.

[0046] Through the above steps, the lightning protection warning method realizes active monitoring and timely response to lightning risks, ensuring the safety of personnel and equipment working at heights. The drone can warn before lightning occurs, cut off the electrical connection with the ground, provide emergency lighting, and resume normal work after the risk is eliminated, effectively improving the safety and reliability of high-altitude operations in power infrastructure.

[0047] In this embodiment, it is specifically described that step S5 specifically includes: S51, the tethered UAV uses a camera carried by the tethered UAV to take real-time photos of the ground environment below and around the tethered UAV to obtain environmental image data.

[0048] S52, transmitting the acquired environmental image data to the intelligent control system, and the intelligent control system preprocesses the image data, and the preprocessing includes image denoising, enhancement and correction to improve image quality and recognition accuracy.

[0049] S53, the intelligent control system analyzes the pre-processed image data and uses an image recognition algorithm based on feature extraction and pattern recognition to identify and classify personnel, equipment, obstacles and terrain features in the ground environment.

[0050] S54, based on the identification and classification results, the intelligent control system establishes a digital model of the ground environment, evaluates the location, size and distribution of each potential risk factor, and calculates the safety factor of the area where the tethered cable may fall.

[0051] At S55, the intelligent control system compares the calculated safety factor with the preset safety threshold to evaluate whether the current environment meets the conditions for the safe drop of the tethered cable, taking into account factors such as the density of ground personnel, the protection radius of important equipment, the height of obstacles, and the complexity of terrain.

[0052] Embodiment 2: Combination Figure 4 As shown, the present invention also provides a lightning protection warning system for a tethered UAV for electric power infrastructure, which is implemented by the lightning protection warning method for a tethered UAV for electric power infrastructure as in the first embodiment. The lightning protection warning system includes: A tethered drone body 10; Voltage sensing module, used to monitor the electric field strength and voltage changes in high-altitude environment in real time, and obtain high-altitude positive and negative voltage data; Intelligent control system to process voltage data and assess risk levels; The power supply switching module 20 is used to control the UAV to switch between the main power supply and the backup power supply.

[0053] The motor drive unit 30 is used to drive the drive motor to drive the cable connector to move, so that the tethered cable is separated from the drone; Cable connector locking mechanism for securing or releasing the connection of a tethered cable; A backup power supply unit 40, used to provide backup power after the UAV is disconnected from the ground power supply; A lighting device 50, for providing emergency lighting function; The camera module is disposed on the lower end surface of the tethered drone body 10 and is used to photograph the ground environment in real time and provide environmental monitoring data; The loudspeaker module 60 is used to issue a warning broadcast for high-altitude operations.

[0054] Communication module, used for data transmission and status reporting with the ground control center; The hovering module is used to maintain the tethered drone in a hovering state at high altitude.

[0055] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lightning protection and early warning method for a tethered UAV for power infrastructure, characterized in that: include: A voltage sensing module is provided on the tethered drone to monitor the electric field strength and voltage changes in the high-altitude environment in real time and obtain high-altitude positive and negative voltage data; When the positive and negative voltage data at high altitude exceeds the preset safety threshold, the intelligent control system triggers the early warning protection program and issues an early warning broadcast for high altitude operations through the speaker module on the drone; The intelligent control system controls the power supply switching module, and the driving motor drives the cable connector to move, so that the tethered cable is separated from the drone, thus disconnecting it from the ground power supply system. After the tethering cable is separated, the tethered drone automatically switches to a backup power supply energy source, hovers in the air through a high-altitude hovering module, and provides emergency lighting through a lighting device.

2. The lightning protection warning method for a tethered UAV for power infrastructure according to claim 1 is characterized in that: When the positive and negative voltage data at high altitude exceeds the preset safety threshold, the intelligent control system triggers the early warning protection program and issues an early warning broadcast for high altitude operations through the speaker module on the drone, specifically including: When the voltage sensing module detects that the positive and negative voltage data at high altitude exceeds a preset safety threshold, a voltage abnormality signal is generated and the voltage abnormality signal is transmitted to the intelligent control system; After receiving the abnormal voltage signal, the intelligent control system starts the early warning protection program, conducts a risk assessment on the current high-altitude working environment, and determines the early warning level; According to the warning level, the intelligent control system sends out corresponding high-altitude operation warning broadcasts through the speaker module on the drone to remind operators to pay attention to abnormal voltage conditions at high altitudes and recommend taking safety protection measures or evacuating immediately.

3. The lightning protection warning method for a tethered UAV for power infrastructure construction according to claim 2 is characterized in that: When the high-altitude positive and negative voltage data exceeds the preset safety threshold, the intelligent control system triggers the early warning protection program and issues a high-altitude operation early warning broadcast through the speaker module on the drone, which also includes: The intelligent control system controls the warning light on the tethered drone to flash at a preset frequency to provide a visual warning signal; The intelligent control system stores voltage anomaly data, warning broadcast content and time stamp records in an internal memory, and transmits the summary information to the ground control center in real time through the communication module.

4. The lightning protection warning method for a tethered UAV for power infrastructure according to claim 3 is characterized in that: The intelligent control system controls the power supply switching module, drives the motor to drive the cable connector to move, separates the tethered cable from the drone, and disconnects the drone from the ground power supply system, specifically including: The intelligent control system receives the voltage abnormality signal and analyzes the risk level of the current environment. When the risk level reaches a preset threshold, the system starts the operation procedure of the power supply switching module; The intelligent control system sends a driving signal to the motor, and the driving motor drives the joint locking mechanism of the tethered cable to perform a release operation, so that the connection between the tethered cable and the drone is gradually loosened, and the tethered cable is ready to be disconnected; After the connector of the tethered cable is released, the motor continues to drive to move the connector of the tethered cable to a separation position, completely disconnecting the electrical connection between the drone and the ground power supply system; After detecting that the tethered cable is completely separated from the drone, the intelligent control system switches the tethered drone to the backup power supply mode and immediately records the time point of the separation operation and the parameter information of the backup power supply.

5. The lightning protection warning method for a tethered UAV for power infrastructure according to claim 4 is characterized in that: The separation operation time point and separation parameter information are recorded immediately, and then: After the power supply is switched to the backup power supply mode, the intelligent control system sends a confirmation signal to the ground control center through the communication module and prepares to enter the emergency lighting and hovering state.

6. The lightning protection warning method for a tethered UAV for power infrastructure construction according to claim 1 is characterized in that: After the tethered cable is separated, the tethered drone automatically switches to the backup power supply energy source, hovers in the air through the high-altitude hovering module, and provides emergency lighting through the lighting device, specifically including: The intelligent control system detects the power level and power supply status of the backup power supply and confirms that the backup power supply is normal; The attitude and position of the tethered drone are adjusted through the high-altitude hovering module, and the flight attitude of the tethered drone is corrected in real time using the built-in gyroscope and accelerometer; Activate the lighting device on the drone, and the intelligent control system adjusts the lighting intensity according to the ambient brightness and operation requirements; After the drone switches to the backup power supply and hovers stably, the intelligent control system continuously monitors the operating status of the tethered drone and the changes in positive and negative voltages at high altitudes to adjust the drone's hovering strategy and lighting mode.

7. The lightning protection warning method for a tethered UAV for power infrastructure construction according to claim 1 is characterized in that: After the tethered cable is separated, the tethered drone automatically switches to the backup power supply energy source, hovers in the air through the high-altitude hovering module, and provides emergency lighting through the lighting device, and then also includes: The camera on the tethered drone is used to capture the ground environment image in real time, generate environmental monitoring data, and evaluate whether the conditions for the safe drop of the tethered cable are met. If so, the intelligent control system controls the tethered cable to drop; if not, the tethered drone is controlled to hover to the next position and the corresponding environmental monitoring data is re-evaluated; The tethered drone continues to monitor changes in the high-altitude voltage environment through the voltage sensing module. When the high-altitude positive and negative voltage data returns to a safe range, the intelligent control system controls the tethered drone to descend, restore the connection with the tethering cable, re-establish the electrical connection with the ground power supply system, and restore normal power supply and communication functions.

8. The lightning protection warning method for a tethered UAV for power infrastructure construction according to claim 7 is characterized in that: The method of using the camera on the tethered drone to capture the ground environment image in real time, generating environmental monitoring data, and evaluating whether the conditions for the tethered cable to be safely dropped are met specifically includes: The tethered drone uses a camera mounted on it to take real-time photos of the ground environment below and around the tethered drone to obtain environmental image data; The acquired environmental image data is transmitted to the intelligent control system, and the intelligent control system preprocesses the image data, wherein the preprocessing includes image denoising, enhancement and correction; The intelligent control system analyzes the pre-processed image data and uses an image recognition algorithm based on feature extraction and pattern recognition to identify and classify personnel, equipment, obstacles and terrain features in the ground environment.

9. The lightning protection warning method for a tethered UAV for power infrastructure construction according to claim 8 is characterized in that: The identification and classification of personnel, equipment, obstacles and terrain features in the ground environment also includes: Based on the identification and classification results, the intelligent control system builds a digital model of the ground environment, evaluates the location, size and distribution of each potential risk factor, and calculates the safety factor of the area where the moored cable falls; The intelligent control system compares the calculated safety factor with the preset safety threshold to evaluate whether the current environment meets the conditions for the safe drop of the tethered cable.

10. A lightning protection warning system for a tethered UAV for power infrastructure, characterized in that: The lightning protection warning method for the tethered UAV of the power infrastructure is implemented by using any one of claims 1 to 9, wherein the lightning protection warning system comprises: The tethered drone body; Voltage sensing module, used to monitor the electric field strength and voltage changes in high-altitude environment in real time, and obtain high-altitude positive and negative voltage data; Intelligent control system to process voltage data and assess risk levels; The power supply switching module is used to control the drone to switch between the main power supply and the backup power supply; A motor drive unit, used to drive the motor to drive the cable connector to move, so that the tethered cable is separated from the drone; Cable connector locking mechanism for securing or releasing the connection of a tethered cable; A backup power supply unit is used to provide backup power to the drone after it is disconnected from the ground power supply; Lighting devices, used to provide emergency lighting functions; The camera module is used to capture the ground environment in real time and provide environmental monitoring data; Speaker module, used to issue warning broadcasts for high-altitude operations; Communication module, used for data transmission and status reporting with the ground control center; The hovering module is used to maintain the tethered drone in a hovering state at high altitude.

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