Low-power-consumption control method of unmanned aerial vehicle power transmission line inspection monitoring device

Abstract

The invention relates to the technical field of low-power-consumption control, in particular to a low-power-consumption control method of an unmanned aerial vehicle power transmission line inspection monitoring device, which comprises the following steps: S1, intermittently awakening work according to a first preset period, and detecting an ultraviolet light pulse signal in an environment; s2, when an ultraviolet light pulse signal conforming to a preset amplitude threshold is detected, waking up a main controller; s3, identifying whether the characteristic is a high-voltage corona characteristic or not; s4, when the high-voltage corona characteristics are identified in the S3, acquiring a field image; s5, after shooting is completed, entering the deep dormant state again; and S6, if the ultraviolet pulse signal is not detected, adjusting to a second preset period. According to the invention, by constructing a periodic adaptive regulation and control mechanism based on corona signal activeness, accurate identification and image acquisition control of high-voltage corona abnormity are realized, and the power consumption of the system is remarkably reduced while the monitoring accuracy is ensured.

Description

Technical Field

[0001] The present invention relates to the field of low power consumption control technology, and in particular to a low power consumption control method for an unmanned aerial vehicle (UAV) power transmission line inspection and monitoring device. Background Art

[0002] During long-term operation, transmission lines may experience energy loss, degradation of equipment insulation, and even failure due to abnormal phenomena such as high-voltage corona discharge. Ultraviolet monitoring devices have been widely used for transmission line status monitoring because they can capture the characteristic ultraviolet light signals generated by high-voltage corona discharge. However, due to the wide distribution of transmission lines and the complex operating environment, on-site monitoring devices often need to remain online for extended periods of time. This causes power-constrained equipment to face problems such as excessive power consumption and shortened power supply life during long-term operation. Ensuring monitoring reliability while reducing energy consumption has become a pressing challenge for online transmission line monitoring technology, especially in unmanned or power-constrained areas.

[0003] Existing UV monitoring systems typically use a method that wakes up the UV sensor at a fixed period and continuously runs the main controller. While this method can capture high-voltage corona signals in real time, maintaining high-frequency detection even when the corona signal is absent for a long time results in high system power consumption and difficulty in long-term stable operation in power-constrained scenarios. Furthermore, existing technologies lack a mechanism for dynamically adjusting the monitoring cycle based on detection results, making it difficult to balance timely monitoring with energy efficiency. Therefore, it is necessary to design a low-power control method for drone-based transmission line inspection and monitoring devices to address these issues. Summary of the Invention

[0004] Based on the above objectives, the present invention provides a low-power consumption control method for a UAV power transmission line inspection and monitoring device.

[0005] A low-power consumption control method for a UAV power transmission line inspection and monitoring device includes the following steps: S1: When the monitoring device is in a deep sleep state, the ultraviolet light sensor wakes up intermittently according to a first preset period to detect ultraviolet light pulse signals in the environment; S2: When ultraviolet light pulse signals meeting the preset amplitude threshold are detected within N consecutive first preset periods, it is determined that a valid pulse cluster is captured and the main controller is awakened; S3: The main controller obtains the duration and pulse frequency of the effective pulse cluster and determines whether it is a high-voltage corona feature based on the preset threshold conditions; S4: When S3 identifies the high-voltage corona feature, the main controller activates the visible light camera to shoot the target transmission line area and obtain on-site images; S5: After the shooting is completed, the main controller controls the device to re-enter the deep sleep state, and resets the ultraviolet light sensor detection period to the first preset period; S6: If no ultraviolet light pulse signal is detected within the continuous M first preset periods, the working period of the ultraviolet light sensor is adjusted to the second preset period; when an ultraviolet light pulse signal is detected within the second preset period, the working period is reset to the first preset period, and the step S1 is returned.

[0006] Optionally, the S1 specifically comprises: S11: After the monitoring device enters the deep sleep state, only the ultraviolet light sensor is kept in the low-power standby mode, and the ultraviolet light sensor is intermittently woken up by the timing circuit according to the first preset period , and each wake-up duration is , and the condition of is met; S12: When woken up each time, the ultraviolet light sensor samples the ultraviolet light signal in the predetermined waveband range in the environment through the photomultiplier tube assembly, the sampling frequency is set to , and a light intensity value sequence is recorded in each sampling period; S13: The light intensity value sequence is subjected to sliding average filtering and background noise threshold elimination processing, and a peak signal of sudden rise is extracted; when it is detected that there is a light intensity mutation in continuous sampling points and the amplitude exceeds the set threshold value, it is considered that an ultraviolet light pulse signal is detected in the corresponding period.

[0007] Optionally, the S13 specifically comprises: S131: The light intensity value sequence collected in each period is subjected to sliding window difference processing, and the light intensity change value between adjacent sampling points is calculated. S132: It is judged whether there are continuous sampling points whose corresponding light intensity change values are all greater than the mutation judgment threshold value , and the light intensity value of any sampling point is greater than the set amplitude threshold value , and the condition is met; when the condition is met, the sampling point with the maximum light intensity value is extracted as the pulse peak light intensity . S133: If the judgment condition of S132 is met, it is determined that an ultraviolet light pulse signal is detected in the current period.

[0008] Optionally, the S2 specifically comprises: S21: Whenever the pulse peak light intensity detected by the ultraviolet light sensor in the current first preset period meets the condition of When the condition is met, the corresponding cycle detection result is recorded as 1, otherwise it is recorded as 0, and the results are written into the pulse mark sequence in chronological order, where is the set pulse amplitude judgment threshold; S22: During the monitoring process, a sliding window mechanism is used to update the pulse marker sequence in real time, retaining only the most recent continuous The detection results of the first preset period are used to determine the current monitoring status; S23: If all elements in the current pulse mark sequence are 1, it is determined that a valid pulse cluster is currently detected, and the main controller is controlled to wake up from the sleep state.

[0009] Optionally, the S3 specifically includes: S31: After being awakened, the main controller accesses the historical pulse records in the UV sensor buffer area and extracts the pulse peak intensity from the first detection. The pulse signal timestamp sequence recorded in the first preset period is used to calculate the start time and end time corresponding to the current pulse cluster; S32: Calculate the duration of the pulse cluster based on the start and end times of the pulse signal, and count the number of valid pulses that appear within the duration to calculate the pulse frequency value; S33: Compare the duration and pulse frequency of the current pulse cluster with the preset high-voltage corona discharge duration range and frequency range respectively. If both of the following conditions are met: Condition 1: The duration is within the preset duration range of high-voltage corona discharge; Condition 2: the pulse frequency is within the preset frequency range of high-voltage corona discharge; The main controller determines that the current ultraviolet pulse cluster has high-voltage corona characteristics.

[0010] Optionally, the S32 specifically includes: S321: The main controller extracts a timestamp sequence of a valid pulse cluster from the pulse record of the ultraviolet light sensor; S322: Calculate the duration of the pulse cluster based on the time difference between the beginning and the end of the timestamp sequence ; S323: Duration Internal statistics of effective pulse number , as the effective pulse number of the current pulse cluster; S324: Duration based on statistics and effective pulse number , calculate the pulse frequency of the current pulse cluster , and its calculation formula is: .

[0011] Optionally, the S4 specifically includes: S41: When the main controller recognizes that the current pulse cluster has high-voltage corona characteristics according to S3, it immediately sends a wake-up command to the visible light camera module to switch the camera from the standby state to the working state; S42: The main controller controls the camera to rotate the pan / tilt to adjust the shooting angle according to the preset target area positioning parameters, automatically aligns the camera with the monitoring target area of ​​the power transmission line, and sets the exposure parameters and shutter time; S43: After completing the angle and parameter settings, the camera is controlled to perform image acquisition operations to obtain an on-site image of the target transmission line area.

[0012] Optionally, the S5 specifically includes: S51: After completing image acquisition of the target transmission line area, the main controller stores the image data in a designated buffer area and controls the camera module to power off through the interface protocol; S52: The main controller sends an instruction to the system power management module to enter a deep sleep state, turning off the power of all functional modules except the ultraviolet light sensor and entering the deep sleep state; S53: The main controller writes control parameters to the timing circuit, resets the detection period of the ultraviolet light sensor to the first preset period, and completes the closed-loop control of the monitoring process.

[0013] Optionally, the S6 specifically includes: S61: The main controller reads the detection results of the ultraviolet light sensor in each first preset cycle. The test results within each cycle are invalid, that is, the peak light intensity of the pulse in all cycles Both are below the set threshold , it is determined that there is no valid pulse signal triggering event; S62: When determining the continuous After the first cycle is invalid, the main controller sends a cycle adjustment instruction to the timing control circuit to adjust the working cycle of the ultraviolet light sensor from the first preset cycle to the Extended to the second preset period ,satisfy ; S63: During the second preset period after the extended period, once the pulse peak light intensity is detected in any second preset period , the main controller immediately sends a recovery instruction to the timing control circuit, resets the working cycle of the ultraviolet light sensor to the first preset cycle, and jumps to S1 to restart the monitoring process.

[0014] Beneficial effects of the present invention: The present invention introduces a pulse peak light intensity judgment mechanism when the ultraviolet light sensor is in an intermittent working state, combined with a multi-cycle continuous detection strategy, to achieve accurate identification of high-voltage corona pulse clusters. After identifying a pulse cluster with high-voltage corona characteristics, the main controller is controlled to wake up in time and execute the image acquisition task, ensuring that the system has the ability to respond accurately when key events occur.

[0015] The present invention uses a periodic adaptive adjustment mechanism to automatically extend the detection cycle of the ultraviolet light sensor when the activity of the corona signal is detected to be reduced, thereby reducing system power consumption in a non-event state; and promptly resume high-frequency monitoring when an abnormal signal is redetected, effectively achieving a dynamic balance between monitoring accuracy and energy consumption control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of a low power consumption control method according to an embodiment of the present invention; Figure 2 Schematic diagram of the process of obtaining on-site images according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0019] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0020] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0021] like Figure 1-Figure 2 As shown, the low power consumption control method of the UAV transmission line inspection and monitoring device includes the following steps: S1: When the monitoring device is in a deep sleep state, the ultraviolet light sensor wakes up intermittently according to a first preset period to detect ultraviolet light pulse signals in the environment; S1 specifically includes: S11: After the monitoring device enters the deep sleep state, only the ultraviolet light sensor is kept in the low power standby mode, and the timing circuit is used to control the ultraviolet light sensor to operate according to the first preset cycle. Perform intermittent wake-up, each wake-up lasts for ,satisfy conditions to reduce overall power consumption; S12: Each time it wakes up, the UV sensor samples the UV light signal within the predetermined wavelength range in the environment through its photomultiplier tube assembly. The sampling frequency is set to , and record the light intensity value sequence in each sampling period; S13: Perform sliding average filtering and background noise threshold elimination processing on the light intensity value sequence to extract the peak signal with sudden increase; when a sudden change in light intensity is detected in several consecutive sampling points and the amplitude exceeds the set threshold, it is considered that an ultraviolet light pulse signal is detected in the corresponding period; the above steps effectively realize the identification of ultraviolet light pulses by adopting a timed wake-up mechanism in a deep sleep state with short-time high-frequency sampling, and combining the sliding average filtering and threshold judgment method, ensuring that the monitoring device can still accurately detect the ultraviolet signal generated by high-voltage corona discharge while maintaining low power consumption operation, providing a stable input basis for subsequent high-voltage corona judgment.

[0022] S13 specifically includes: S131: Perform sliding window difference processing on the light intensity value sequence collected in each cycle to calculate the light intensity change value between adjacent sampling points , and its calculation formula is: , ,in, Indicates the Light intensity value at each sampling moment; Indicates the The light intensity change value of each sampling point relative to the previous sampling point; Indicates the total number of sampling points collected in each sampling period; S132: Determine whether there is a continuous Sampling points, corresponding to the light intensity change value Both are greater than the mutation judgment threshold , and the light intensity value of any sampling point is greater than the set amplitude threshold , when the conditions are met, the sampling point with the largest light intensity value is extracted as the pulse peak intensity ; S133: If the judgment condition of S132 is met, it is determined that an ultraviolet light pulse signal is detected in the current cycle, and the signal is used for subsequent effective pulse cluster judgment; the above steps can achieve accurate identification of high-voltage corona discharge ultraviolet signals by performing differential analysis and threshold judgment on continuous light intensity mutations, combined with the maximum peak point extraction mechanism, effectively improving the pulse recognition sensitivity and accuracy of the monitoring device in low power consumption state.

[0023] S2: When ultraviolet light pulse signals meeting the preset amplitude threshold are detected within N consecutive first preset periods, it is determined that a valid pulse cluster is captured and the main controller is awakened; S2 specifically includes: S21: Whenever the UV sensor detects a pulse peak light intensity within the current first preset cycle satisfy When the condition is met, the corresponding cycle detection result is recorded as 1, otherwise it is recorded as 0, and the results are written into the pulse mark sequence in chronological order, where is the set pulse amplitude judgment threshold; S22: During the monitoring process, a sliding window mechanism is used to update the pulse marker sequence in real time, retaining only the most recent continuous The detection results of the first preset period are used to determine the current monitoring status; S23: If all elements in the current pulse mark sequence are 1, it is determined that a valid pulse cluster is currently detected, and the main controller is controlled to wake up from the sleep state and enter the high-voltage corona feature analysis phase; the expression that all elements are 1 is: ,in, Indicates the A detection mark value of a first preset period; is the set number of consecutive cycles, which is used to determine the time window length of the valid pulse cluster; the above steps use the periodic determination mechanism of the pulse peak light intensity and combine it with the sliding window accumulation method to identify continuous valid signals, which can effectively reduce the false trigger rate and improve the judgment reliability and energy consumption control accuracy of the system in the early stage of corona identification.

[0024] S3: The main controller obtains the duration and pulse frequency of the effective pulse cluster and determines whether it is a high-voltage corona feature based on the preset threshold conditions; S3 specifically includes: S31: After being awakened, the main controller accesses the historical pulse records in the UV sensor buffer area and extracts the pulse peak intensity from the first detection. The pulse signal timestamp sequence recorded in the first preset period is used to calculate the start time and end time corresponding to the current pulse cluster; S32: Calculate the duration of the pulse cluster based on the start and end times of the pulse signal, count the number of valid pulses that appear within the duration, and calculate the pulse frequency value; S33: Compare the duration and pulse frequency of the current pulse cluster with the preset high-voltage corona discharge duration range and frequency range respectively. If both of the following conditions are met: Condition 1: The duration is within the preset duration range of high-voltage corona discharge; Condition 2: the pulse frequency is within the preset frequency range of high-voltage corona discharge; The main controller determines that the current ultraviolet pulse cluster has high-voltage corona characteristics and enters the next step of the image acquisition control process; the above steps analyze the time and frequency characteristics of the effective pulse cluster and match them with the preset corona discharge characteristic parameters. It can achieve accurate identification of high-voltage corona phenomena in low-power operation state and provide accurate triggering basis for subsequent image capture.

[0025] S32 specifically includes: S321: The main controller extracts a timestamp sequence of a valid pulse cluster from the pulse record of the ultraviolet light sensor; S322: Calculate the duration of the pulse cluster based on the time difference between the beginning and the end of the timestamp sequence , and its calculation formula is: ,in, represents the time of the first detected pulse in the pulse cluster, Indicates the time of the last pulse; S323: Duration Internal statistics of effective pulse number , that is, the peak intensity of the pulse Greater than or equal to the threshold The number of records is used as the valid pulse number of the current pulse cluster; S324: Duration based on statistics and effective pulse number , calculate the pulse frequency of the current pulse cluster , and its calculation formula is: ; The above steps extract the duration through the timestamp sequence and calculate the pulse frequency based on the effective pulse number, realizing the time domain feature extraction and quantitative analysis of the ultraviolet signal, providing key parameter basis for the subsequent accurate comparison with the corona characteristic threshold.

[0026] S4: When S3 identifies the high-voltage corona feature, the main controller activates the visible light camera to shoot the target transmission line area and obtain on-site images; S4 specifically includes: S41: When the main controller recognizes that the current pulse cluster has high-voltage corona characteristics according to S3, it immediately sends a wake-up command to the visible light camera module to switch the camera from the standby state to the working state; S42: The main controller controls the camera to rotate the pan / tilt to adjust the shooting angle according to the preset target area positioning parameters, automatically aligns the camera with the monitoring target area of ​​the power transmission line, and sets the exposure parameters and shutter time to adapt to the current lighting conditions; S43: After completing the angle and parameter settings, control the camera to perform image acquisition operations to obtain on-site images of the target transmission line area; the above steps automatically control the camera startup, alignment and image acquisition operations based on the corona feature judgment results through the main controller, which can ensure the accurate acquisition of on-site images of the transmission line under abnormal corona conditions, thereby improving the response efficiency and data integrity of the monitoring system.

[0027] S5: After the shooting is completed, the main controller controls the device to re-enter the deep sleep state and resets the ultraviolet light sensor detection cycle to the first preset cycle; S5 specifically includes: S51: After completing image acquisition of the target transmission line area, the main controller stores the image data in a designated buffer area and controls the camera module to power off through the interface protocol to release non-essential operating resources; S52: The main controller sends a command to the system power management module to enter a deep sleep state, turns off the power of all functional modules except the ultraviolet light sensor, and reduces the operating frequency and power supply voltage of the main controller itself to enter a deep sleep state; S53: The main controller writes control parameters to the timing circuit, resets the detection period of the ultraviolet light sensor to the first preset period, ensures that subsequent ultraviolet light signal sampling runs at the normal working frequency, and completes the closed-loop control of the monitoring process; the above steps are carried out through the main controller to shut down the image acquisition module and the system power module in a hierarchical manner, and synchronously reset the ultraviolet light sensor detection period, effectively realizing the system's rapid dormancy and resource recovery after event processing, and ensuring the long-term stable operation and energy consumption optimization of the monitoring device.

[0028] S6: If no ultraviolet light pulse signal is detected within M consecutive first preset periods, the duty cycle of the ultraviolet light sensor is adjusted to a second preset period; when an ultraviolet light pulse signal is detected within the second preset period, the duty cycle is reset to the first preset period, and the process returns to step S1; S6 specifically includes: S61: The main controller reads the detection results of the ultraviolet light sensor in each first preset cycle. The test results within each cycle are invalid, that is, the peak light intensity of the pulse in all cycles Both are below the set threshold , it is determined that there is no valid pulse signal triggering event; S62: When determining the continuous After the first cycle is invalid, the main controller sends a cycle adjustment instruction to the timing control circuit to adjust the working cycle of the ultraviolet light sensor from the first preset cycle to the Extended to the second preset period ,satisfy , to reduce system power consumption during invalid monitoring; S63: During the second preset period after the extended period, once the pulse peak light intensity is detected in any second preset period , the main controller immediately sends a recovery instruction to the timing control circuit, resets the working cycle of the ultraviolet light sensor to the first preset cycle, and jumps to S1 to restart the monitoring process.

[0029] The design principle of the above-mentioned step S6 is to introduce a periodic adaptive control mechanism based on historical detection results. Its core purpose is to reduce power consumption as much as possible while ensuring the effectiveness of monitoring. When the system fails to detect an ultraviolet light pulse signal that meets the threshold within M consecutive first preset periods, it indicates that the possibility of a high-voltage corona event in the current environment is low. At this time, by extending the working cycle of the ultraviolet light sensor from the high-frequency T1 to the low-frequency T2, the number of wake-up times can be effectively reduced and the system power consumption can be reduced. Once a valid signal appears again in the low-frequency detection cycle, it immediately returns to high-frequency sampling to ensure that the system responds to the corona event in a timely manner. Therefore, S6 achieves a dynamic balance between energy consumption and monitoring efficiency without sacrificing response capability through a strategy of coupling detection behavior with period adjustment.

[0030] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A low-power consumption control method for a UAV power transmission line inspection and monitoring device, characterized in that: The following steps are involved: S1: When the monitoring device is in a deep sleep state, the ultraviolet light sensor wakes up intermittently according to a first preset period to detect ultraviolet light pulse signals in the environment; S2: When ultraviolet light pulse signals meeting the preset amplitude threshold are detected within N consecutive first preset periods, it is determined that a valid pulse cluster is captured and the main controller is awakened; S3: The main controller obtains the duration and pulse frequency of the effective pulse cluster and determines whether it is a high-voltage corona feature based on the preset threshold conditions; S4: When S3 identifies the high-voltage corona feature, the main controller activates the visible light camera to shoot the target transmission line area and obtain on-site images; S5: After the shooting is completed, the main controller controls the device to re-enter the deep sleep state and resets the ultraviolet light sensor detection cycle to the first preset cycle; S6: If no ultraviolet light pulse signal is detected within M consecutive first preset periods, the working period of the ultraviolet light sensor is adjusted to the second preset period; when an ultraviolet light pulse signal is detected within the second preset period, the working period is reset to the first preset period, and the process returns to step S1.

2. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 1 is characterized in that: Said S1 specifically includes: S11: After the monitoring device enters the deep sleep state, only the ultraviolet light sensor is kept in the low power standby mode, and the timing circuit is used to control the ultraviolet light sensor to operate according to the first preset cycle. Perform intermittent wake-up, each wake-up lasts for ,satisfy conditions; S12: Each time it wakes up, the UV sensor samples the UV light signal within the predetermined wavelength range in the environment through its photomultiplier tube assembly. The sampling frequency is set to , and record the light intensity value sequence in each sampling period; S13: Perform sliding average filtering and background noise threshold elimination processing on the light intensity value sequence to extract the peak signal with sudden increase; when a sudden change in light intensity is detected in several consecutive sampling points and the amplitude exceeds the set threshold, it is considered that an ultraviolet light pulse signal is detected in the corresponding period.

3. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 2 is characterized in that: The S13 specifically includes: S131: Perform sliding window difference processing on the light intensity value sequence collected in each cycle to calculate the light intensity change value between adjacent sampling points ; S132: Determine whether there is a continuous Sampling points, corresponding to the light intensity change value Both are greater than the mutation judgment threshold , and the light intensity value of any sampling point is greater than the set amplitude threshold , when the conditions are met, the sampling point with the largest light intensity value is extracted as the pulse peak intensity ; S133: If the judgment condition of S132 is met, it is determined that an ultraviolet light pulse signal is detected in the current cycle.

4. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 3 is characterized in that: The S2 specifically includes: S21: Whenever the UV sensor detects a pulse peak light intensity within the current first preset cycle satisfy When the condition is met, the corresponding cycle detection result is recorded as 1, otherwise it is recorded as 0, and the results are written into the pulse mark sequence in chronological order, where is the set pulse amplitude judgment threshold; S22: During the monitoring process, a sliding window mechanism is used to update the pulse marker sequence in real time, retaining only the most recent continuous The detection results of the first preset period are used to determine the current monitoring status; S23: If all elements in the current pulse mark sequence are 1, it is determined that a valid pulse cluster is currently detected, and the main controller is controlled to wake up from the sleep state.

5. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 1 is characterized in that: The S3 specifically includes: S31: After being awakened, the main controller accesses the historical pulse records in the UV sensor buffer area and extracts the pulse peak intensity from the first detection. The pulse signal timestamp sequence recorded in the first preset period is used to calculate the start time and end time corresponding to the current pulse cluster; S32: Calculate the duration of the pulse cluster based on the start and end times of the pulse signal, count the number of valid pulses that appear within the duration, and calculate the pulse frequency value; S33: Compare the duration and pulse frequency of the current pulse cluster with the preset high-voltage corona discharge duration range and frequency range respectively. If both of the following conditions are met: Condition 1: The duration is within the preset duration range of high-voltage corona discharge; Condition 2: the pulse frequency is within the preset frequency range of high-voltage corona discharge; The main controller determines that the current ultraviolet pulse cluster has high-voltage corona characteristics.

6. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 5 is characterized in that: The S32 specifically includes: S321: The main controller extracts a timestamp sequence of a valid pulse cluster from the pulse record of the ultraviolet light sensor; S322: Calculate the duration of the pulse cluster based on the time difference between the beginning and the end of the timestamp sequence ; S323: Duration Internal statistics of effective pulse number , as the effective pulse number of the current pulse cluster; S324: Duration based on statistics and effective pulse number , calculate the pulse frequency of the current pulse cluster , and its calculation formula is: .

7. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 1 is characterized in that: The S4 specifically includes: S41: When the main controller recognizes that the current pulse cluster has high-voltage corona characteristics according to S3, it immediately sends a wake-up command to the visible light camera module to switch the camera from the standby state to the working state; S42: The main controller controls the camera to rotate the pan / tilt to adjust the shooting angle according to the preset target area positioning parameters, automatically aligns the camera with the monitoring target area of ​​the power transmission line, and sets the exposure parameters and shutter time; S43: After completing the angle and parameter settings, the camera is controlled to perform image acquisition operations to obtain an on-site image of the target transmission line area.

8. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 1, characterized in that: The S5 specifically includes: S51: After completing image acquisition of the target transmission line area, the main controller stores the image data in a designated buffer area and controls the camera module to power off through the interface protocol; S52: The main controller sends an instruction to the system power management module to enter a deep sleep state, turning off the power of all functional modules except the ultraviolet light sensor and entering the deep sleep state; S53: The main controller writes control parameters to the timing circuit, resets the detection period of the ultraviolet light sensor to the first preset period, and completes the closed-loop control of the monitoring process.

9. The low power consumption control method of the UAV power transmission line inspection and monitoring device according to claim 1, characterized in that: The S6 specifically includes: S61: The main controller reads the detection results of the ultraviolet light sensor in each first preset cycle. The test results within each cycle are invalid, that is, the peak light intensity of the pulse in all cycles Both are below the set threshold , it is determined that there is no valid pulse signal triggering event; S62: When determining the continuous After the first cycle is invalid, the main controller sends a cycle adjustment instruction to the timing control circuit to adjust the working cycle of the ultraviolet light sensor from the first preset cycle to the Extended to the second preset period ,satisfy ; S63: During the second preset period after the extended period, once the pulse peak light intensity is detected in any second preset period , the main controller immediately sends a recovery instruction to the timing control circuit, resets the working cycle of the ultraviolet light sensor to the first preset cycle, and jumps to S1 to restart the monitoring process.

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