Power distribution overhead line lead detection method and device

Abstract

The invention relates to a power distribution overhead line wire detection method and device, and relates to the technical field of wire detection. The method comprises the following steps: controlling a CCD laser diameter measuring module to detect a to-be-measured wire to obtain a first wire diameter; a displacement sensor is controlled to detect the displacement change generated after the cable clamping mechanism clamps the to-be-detected wire, and the diameter of a second wire is obtained; a pressure sensor is controlled to detect the pressure on the two sides of the cable clamping mechanism, the clamping pressure difference is obtained, the diameter of the second wire is corrected and compensated based on the clamping pressure difference, and the diameter of a third wire is obtained; when the intelligent control unit detects that the deviation among the first wire diameter, the second wire diameter and the third wire diameter is smaller than or equal to the corresponding standard deviation, the intelligent control unit is controlled, and the target diameter of the wire to be detected is determined according to the first wire diameter, the second wire diameter and the third wire diameter.

Description

Technical Field

[0001] This application relates to the field of conductor testing technology, and in particular to a method and apparatus for testing conductors in overhead power distribution lines. Background Technology

[0002] In the operation, maintenance, and upgrading of power distribution networks, accurate measurement of the conductor diameter of overhead lines is crucial for conductor selection, load assessment, and conductor replacement. Therefore, the accuracy of the measured diameter data directly impacts the investment efficiency and operational safety of the power grid. Specifically, if the measured value is too large, it may lead to "replacing smaller conductors with larger ones," resulting in material waste; if the measured value is too small, it may lead to "replacing larger conductors with smaller ones," leaving potential safety hazards such as line overload. Currently, both contact measuring tools (such as vernier calipers) and non-contact devices (such as handheld laser diameter gauges) rely on the physical principle of a single physical quantity to output a measured diameter value. However, in complex outdoor environments, influencing factors are numerous, and the measured value obtained based on a single physical principle differs significantly from the actual diameter, resulting in low accuracy. For example, laser beams may be affected by dust, moisture, or brief periods of intense light, causing inaccurate diameter measurements; mechanical contact measurements cannot avoid reading fluctuations caused by varying clamping forces, differences in tactile sensation, or mechanical gaps, which can also lead to inaccurate measurements. Summary of the Invention

[0003] This invention provides a method and apparatus for detecting conductors in overhead power distribution lines, at least solving the problems of low accuracy in diameter measurement and the need for working at heights for live-line measurements. The technical solution of this invention is as follows: According to a first aspect of the present invention, a conductor detection device for overhead power distribution lines is provided. The overhead power distribution line conductor detection device includes a cable clamping mechanism, a multi-sensor measurement unit, and an intelligent control unit. The multi-sensor measurement unit is disposed on the cable clamping mechanism. The intelligent control unit is communicatively connected to the multi-sensor measurement unit. The multi-sensor measurement unit includes a CCD laser diameter measuring module, a displacement sensor, and a pressure sensor. The method includes: controlling the CCD laser diameter measuring module to detect the conductor to be tested to obtain a first conductor diameter; controlling the displacement sensor to detect the displacement change generated by the cable clamping mechanism after clamping the conductor to be tested to obtain a second conductor diameter; controlling the pressure sensor to detect the pressure on both sides of the cable clamping mechanism to obtain a clamping pressure difference, and correcting and compensating the second conductor diameter based on the clamping pressure difference to obtain a third conductor diameter; when the intelligent control unit detects that the deviation between the first conductor diameter, the second conductor diameter, and the third conductor diameter is less than or equal to the corresponding standard deviation, controlling the intelligent control unit to determine the target diameter of the conductor to be tested based on the first conductor diameter, the second conductor diameter, and the third conductor diameter.

[0004] In one implementation, the diameter of the second conductor is corrected and compensated based on the clamping pressure difference to obtain the diameter of the third conductor. This includes: obtaining the target compensation length corresponding to the clamping pressure difference according to the correlation between the pressure difference and the compensation length; and compensating the target compensation length to the diameter of the second conductor to obtain the diameter of the third conductor.

[0005] In another implementation, the target diameter of the conductor to be measured is determined based on the diameters of the first, second, and third conductors. This includes: determining the first, second, and third weights corresponding to the target conductor type based on the correlation between conductor type and weights; the sum of the weights of the first, second, and third weights is 1; the first weight is greater than the second weight, and the second weight is greater than the third weight; and the first, second, and third weights are weighted and summed with the diameters of the first, second, and third conductors, respectively, to obtain the target diameter.

[0006] In another implementation, the device further includes an environmental parameter sensor; the intelligent control unit includes a preset model, which is a convolutional neural network model, used to characterize the relationship between environmental parameters, the first diameter, the second diameter, and the third diameter obtained by the three sensors in the multi-sensor measurement unit, and the actual diameter; the target diameter of the conductor to be measured is determined based on the first conductor diameter, the second conductor diameter, and the third conductor diameter, including: obtaining current environmental parameters from the environmental parameter sensor, the current environmental parameters including the current temperature, the current humidity, and the current wind speed; and inputting the current environmental parameters, the first conductor diameter, the second conductor diameter, and the third conductor diameter into the preset model to obtain the target diameter.

[0007] In another implementation, the device further includes a liquid crystal display module connected to the intelligent control unit. The method further includes: sending the detection data acquired by the intelligent control unit to the liquid crystal display module; the detection data includes the target diameter; and controlling the liquid crystal display module to display the detection data.

[0008] In another implementation, the device further includes an automatically retractable telescopic insulating rod mechanism; the telescopic insulating rod mechanism includes a fixing component, and the telescopic insulating rod mechanism is connected to a cable clamping mechanism for providing insulation support and length adjustment; the cable clamping mechanism includes multiple clamping heads of different sizes, which are rotatably mounted on the fixing component; the fixing component is used to fix any one of the multiple clamping heads; the method further includes: selecting a target clamping head from the multiple clamping heads according to the target conductor type of the conductor to be tested; determining the target angle range to which the target clamping head belongs; and controlling the fixing component to fix the target clamping head according to the target angle range.

[0009] In another implementation, the method further includes: when the intelligent control unit detects that the deviation between the diameters of the first wire, the second wire, and the third wire is greater than the corresponding standard deviation, the control device stops the detection.

[0010] In another implementation, the method further includes: determining that the target diameter is greater than a target diameter threshold associated with the target wire type of the wire to be tested, and controlling the liquid crystal display module to display the target diameter according to a first display signal; determining that the target diameter is less than or equal to the target diameter threshold, and controlling the liquid crystal display module to display the target diameter according to a second display signal.

[0011] According to a second aspect of the present invention, a power distribution overhead line conductor detection device is provided. The device includes: a cable clamping mechanism for fixing the conductor to be tested; a multi-sensor measurement unit disposed on the cable clamping mechanism, including a CCD laser diameter measuring module, a displacement sensor, and a pressure sensor, for acquiring multi-dimensional diameter data of the conductor to be tested; and an intelligent control unit electrically connected to the multi-sensor measurement unit and the cable clamping mechanism for processing the diameter data from the multi-sensor measurement unit to determine a target diameter. The device is configured to perform the power distribution overhead line conductor detection method described in the first aspect and any possible implementation thereof.

[0012] In another implementation, the device further includes: an automatically retractable telescopic insulating rod mechanism for providing insulation support and length adjustment; the telescopic insulating rod mechanism includes a fixing component and is connected to a cable clamping mechanism; the cable clamping mechanism includes multiple clamping heads of different sizes, which are rotatably mounted on the fixing component; the fixing component is used to fix any one of the clamping heads; an environmental parameter sensor for detecting environmental parameters of the conductor under test; the environmental parameters include temperature, humidity, and wind speed; an intelligent control unit is equipped with a preset model, which is a convolutional neural network model; an LCD module is connected to the intelligent control unit for displaying the detection data; the device is configured to perform the above-described method for detecting overhead power line conductors in the first aspect and any possible implementation thereof.

[0013] According to a third aspect of the present invention, a computer-readable storage medium is provided, on which instructions are stored, such that when the instructions in the computer-readable storage medium are executed by a processor of a power distribution overhead line conductor detection device, the power distribution overhead line conductor detection device is able to perform a power distribution overhead line conductor detection method as described in the first aspect and any possible implementation thereof.

[0014] According to a fourth aspect of the present disclosure, a computer program product is provided, the computer program product including computer instructions, which, when executed on a power distribution overhead line conductor detection device, cause the power distribution overhead line conductor detection device to perform the power distribution overhead line conductor detection method described in the first aspect and any possible implementation thereof.

[0015] The technical solution provided by the embodiments of the present invention brings at least the following beneficial effects: It utilizes the first wire diameter detected by CCD laser as a high-precision non-contact reference, uses the second wire diameter detected by a displacement sensor as a direct mechanical measurement value, and further introduces a pressure sensor to diagnose and correct deformation errors caused by uneven clamping force, thereby correcting and compensating for the second wire diameter and generating a more accurate third wire diameter. Simultaneously, it determines the differences between the above three wire diameter results. When the differences are all small, it indicates that the three detection bases have small differences and are relatively balanced under the influence of complex environmental factors, with their different influences roughly canceling each other out. Based on this, the first, second, and third wire diameters with small deviations can accurately characterize the measurement results obtained under different physical quantities. Thus, based on the three wire diameter measurements of three different physical quantities, the target wire diameter can be determined more accurately.

[0016] Furthermore, by integrating three independent measurement methods based on different physical principles—the diameter of the first conductor measured by CCD laser diameter measurement, the diameter of the second conductor measured by displacement sensing, and the diameter of the third conductor compensated by pressure—a multi-source data acquisition system was constructed. This ensures that even if one sensor is temporarily disturbed, other sensors can still provide effective data references, thereby improving the anti-interference capability and overall accuracy of the system architecture.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure, and are not intended to unduly limit this disclosure.

[0019] Figure 1 This is a schematic diagram of the architecture of a power distribution overhead line conductor detection device according to an exemplary embodiment; Figure 2 This is a schematic diagram of components of a power distribution overhead line conductor detection device according to an exemplary embodiment. Figure 1 ; Figure 3 This is a schematic diagram of components of a power distribution overhead line conductor detection device according to an exemplary embodiment. Figure 2 ; Figure 4 This is a flowchart illustrating a method for detecting conductors in an overhead power distribution line according to an exemplary embodiment; Figure 5 This is a schematic diagram of a power distribution overhead line conductor detection device according to an exemplary embodiment. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0021] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0022] Before providing a detailed description of the overhead power line conductor detection method provided in this application embodiment, let's briefly introduce the application scenarios and implementation environment involved in this application embodiment.

[0023] In projects such as rural power grid upgrades and renovations, the replacement of low-voltage overhead power line conductors is a core component. The scientific and economical design of the renovation plan depends entirely on the accurate measurement of existing conductor specifications during the initial site survey. Inaccurate measurement data can easily lead to incorrect conductor selection: if the conductor is too small ("replacing a large conductor with a small one"), its current-carrying capacity will be insufficient, posing a risk of overload and overheating; if the conductor is too large ("replacing a small conductor with a large one"), it will result in a serious waste of materials and investment.

[0024] Currently, on-site surveyors mainly rely on the following types of technical means for traverse surveying.

[0025] First, contact measuring tools (such as vernier calipers and digital calipers): These tools require direct contact with the conductor or insulation of the wire to perform measurements. However, low-voltage power lines are often energized during surveys, and de-energizing them would disrupt the user's power supply. Direct contact with live conductors poses an extremely high risk of electric shock. Furthermore, overhead conductors are typically located at heights of 3-8 meters, requiring ladders or boom lifts for access when using these tools. This not only results in extremely low efficiency (each measurement can take more than ten minutes) but also carries the risk of falls from heights.

[0026] Secondly, traditional non-contact measuring instruments (such as general-purpose handheld laser diameter gauges): While these instruments achieve non-contact measurement, they are not designed for high-altitude operations in the power industry and have significant shortcomings. Firstly, they are large and heavy (typically ≥2.5kg), requiring two hands to hold, making stable operation by a single person difficult while at height. Secondly, they lack dedicated conductor clamping and positioning mechanisms, relying entirely on manual alignment during measurement, which is highly susceptible to deviations due to hand tremors, wind, and other factors, failing to meet the stringent 0.05mm error requirement for conductor selection. Finally, they are functionally limited, lacking data storage and verification capabilities, making measurement results untraceable and hindering reliable data support for subsequent unified selection and design.

[0027] Third, the experience-based judgment method: Some surveyors rely on visual observation of the conductor's appearance and estimate the conductor diameter based on experience. This method is highly subjective, greatly affected by conductor oxidation, aging, and deformation, with an error rate as high as 20%. Furthermore, it lacks any objective data records, making it impossible to trace responsibility once a selection error occurs.

[0028] In summary, existing technologies suffer from a long-standing, complex problem: the lack of a dedicated measuring tool that can simultaneously meet the demands of "live-line, high-altitude, precise, and efficient" field operations. Specifically, this manifests as an inability to balance operational safety, measurement accuracy, data reliability, and single-person portability. Therefore, there is an urgent need for a highly integrated dedicated device that allows ground personnel to safely, quickly, and accurately acquire and verify conductor diameter data without contact with live conductors, thereby ensuring the quality and effectiveness of rural power grid renovation projects from the outset.

[0029] To address the aforementioned issues, this application proposes a method for detecting conductors in overhead power distribution lines. Through multi-sensor fusion, a closed-loop process of "multi-source acquisition – active compensation – cross-verification" is established, elevating the relevant measurement tools into an intelligent verification system with self-diagnosis, self-calibration, and self-decision-making capabilities. The ultimate result is an output of a precise, verified, and highly reliable "target diameter," ensuring the technical rationality and investment accuracy of power distribution network renovation projects from the outset. By acquiring data from three different types of sensors based on different physical principles (optical, displacement, and mechanical), and then performing data fusion and cross-verification by the intelligent control unit, errors caused by environmental interference (such as wind, vibration, and conductor deformation) or inherent faults of a single sensor are effectively offset, thereby improving overall measurement accuracy.

[0030] Secondly, the implementation architecture involved in this application will be briefly introduced below.

[0031] like Figure 1As shown in the figure, this application embodiment proposes a power distribution overhead line conductor detection device, which includes: a cable clamping mechanism 11, a multi-sensor measurement unit 12, an intelligent control unit 13, a telescopic insulating rod mechanism 14, an environmental parameter sensor 15, and a liquid crystal display module 16.

[0032] The cable clamping mechanism 11 is used to fix the conductor to be tested.

[0033] The cable clamping mechanism 11 may include a miniature motor.

[0034] A ball screw driven by a micro motor; a clamping block that meshes with the ball screw and moves along a guide rod; and an anti-slip rubber pad and a pressure sensor installed inside the clamping block; wherein, the intelligent control unit adjusts the rotation of the micro motor through a closed-loop control algorithm based on the feedback signal from the pressure sensor, so as to keep the clamping force stable within the range of 2.5N to 5N.

[0035] In some embodiments, combined with Figure 2 and Figure 3 As shown, each clamping head 110 in the cable clamping mechanism 11 is equipped with a lead screw 111, a clamping block 112, a guide rod 113, a control box 114, a power switch 115, a charging port 116, and a pressure sensor switch 117.

[0036] The clamping block has a quick-release structure and is available in at least three different sizes to accommodate wires with different cross-sectional areas.

[0037] The multi-sensor measurement unit 12 is mounted on the cable clamping mechanism and includes a CCD laser diameter measurement module, a displacement sensor, and a pressure sensor, used to collect multi-dimensional diameter data of the conductor to be measured.

[0038] The CCD laser diameter measuring module has a measurement range of 0.05-60mm and a resolution of no less than 0.005mm; the displacement sensor has a resolution of no less than 0.002mm; and there are two pressure sensors used to detect the distribution of clamping force.

[0039] The intelligent control unit 13 is electrically connected to the multi-sensor measurement unit and the cable clamping mechanism, and is used to process the wire diameter data of the multi-sensor measurement unit to determine the target diameter.

[0040] An automatically retractable telescopic insulating rod mechanism 14 is used to provide insulating support and length adjustment.

[0041] The telescopic insulating pole mechanism is a multi-section telescopic pole made of carbon fiber, with the surface of the pole covered with a silicone rubber insulation layer. The overall insulation level is not less than 500V, and the telescopic range is between 1.2 meters and 6 meters.

[0042] In some embodiments, the telescopic insulating rod mechanism 14 includes a fixing component, and the telescopic insulating rod mechanism is connected to the cable clamping mechanism; the cable clamping mechanism includes multiple clamping heads of different sizes, and the multiple clamping heads are rotatably mounted on the fixing component; the fixing component is used to fix any one of the multiple clamping heads.

[0043] The telescopic insulating rod mechanism 14 can be a carbon fiber telescopic insulating rod.

[0044] This component provides a physical safety distance and insulation protection, eliminating the need for operators to directly contact or get too close to live wires, or to rely on ladders or other climbing equipment, thus fundamentally avoiding the risks of electric shock and falls from heights.

[0045] Environmental parameter sensor 15 is used to detect the environmental parameters of the conductor under test.

[0046] Environmental parameters include temperature, humidity, and wind speed.

[0047] The intelligent control unit 13 is equipped with a preset model, which is a convolutional neural network model.

[0048] The intelligent control unit 13 includes a microcontroller unit (MCU), a data storage chip, and a motor drive chip. The microcontroller unit uses an STM32F407 series chip to execute the data fusion algorithm and the clamping force closed-loop control algorithm. The data storage chip has a capacity of not less than 32MB and is used to store at least 500 sets of measurement data including timestamps. The motor drive chip uses an L298N and is used to drive the micro motor in the cable clamping mechanism.

[0049] The intelligent control unit 13 also includes a Bluetooth communication module configured to wirelessly transmit measurement data to an external mobile terminal.

[0050] The intelligent control unit 13 provides the device with a "brain," enabling automated data verification, processing, and storage, ensuring the objectivity and traceability of the data. The LCD display module provides real-time human-computer interaction, intuitively presenting measurement results and system status, breaking the limitations of traditional tools that "only measure, do not process, and do not display."

[0051] The LCD display module 16 is connected to the intelligent control unit and is used to display the detection data.

[0052] The LCD display module 16 is a 2.8-inch IPS screen with a protection rating of no less than IP65, and integrates a power button, clamp / release button, measurement button, and synchronization button.

[0053] The aforementioned device organically integrates mechanical structure, sensing technology, intelligent algorithms, and human-computer interaction into a single unit. This holistic solution collaboratively and comprehensively addresses all the core technical pain points mentioned in the background technology, achieving a technological leap from "unsafe, inaccurate, unreliable, and inefficient" to "safe, accurate, intelligent, and efficient."

[0054] For ease of understanding, the method for detecting overhead power line conductors provided in this application will be described in detail below with reference to the accompanying drawings. This method can be applied to the overhead power line conductor detection device in the above-described implementation framework.

[0055] Figure 4 This is a flowchart illustrating a method for detecting conductors in an overhead power distribution line according to an exemplary embodiment, such as... Figure 4 As shown, the method for detecting conductors in overhead power distribution lines includes the following steps.

[0056] S21, control the CCD laser diameter measuring module to detect the conductor to be measured and obtain the first conductor diameter.

[0057] S22, control the displacement sensor to detect the displacement change generated by the cable clamping mechanism after clamping the wire to be tested, and obtain the second wire diameter.

[0058] S23, control the pressure sensor to detect the pressure on both sides of the cable clamping mechanism to obtain the clamping pressure difference.

[0059] S24, the diameter of the second conductor is corrected and compensated based on the clamping pressure difference to obtain the diameter of the third conductor.

[0060] S25, when the intelligent control unit detects that the deviation between the diameter of the first wire, the diameter of the second wire, and the diameter of the third wire is less than or equal to the corresponding standard deviation, the intelligent control unit is controlled to determine the target diameter of the wire to be measured based on the diameter of the first wire, the diameter of the second wire, and the diameter of the third wire.

[0061] The above-described method for detecting overhead power line conductors utilizes a CCD laser-detected first conductor diameter as a high-precision non-contact reference, a displacement sensor-detected second conductor diameter as a direct mechanical measurement, and a pressure sensor to diagnose and correct deformation errors caused by uneven clamping force, compensating for the second conductor diameter to generate a more accurate third conductor diameter. Simultaneously, the differences between these three conductor diameter results are determined. Small differences indicate minimal variation among the three detection methods, suggesting a relatively balanced influence from complex environmental factors, with their different effects largely canceling each other out. Therefore, the first, second, and third conductor diameters with minimal deviations accurately represent the measurement results obtained under different physical quantities. Thus, by using three conductor diameter measurements based on three different physical quantities, the target conductor diameter can be determined more accurately.

[0062] Furthermore, by integrating three independent measurement methods based on different physical principles—the diameter of the first conductor measured by CCD laser diameter measurement, the diameter of the second conductor measured by displacement sensing, and the diameter of the third conductor compensated by pressure—a multi-source data acquisition system was constructed. This ensures that even if one sensor is temporarily disturbed, other sensors can still provide effective data references, thereby improving the anti-interference capability and overall accuracy of the system architecture.

[0063] In one embodiment, the process of correcting and compensating for the diameter of the second conductor based on the clamping pressure difference is as follows.

[0064] First, based on the correlation between pressure difference and compensation length, the target compensation length corresponding to the clamping pressure difference is obtained.

[0065] Secondly, the target compensation length is compensated to the diameter of the second conductor to obtain the diameter of the third conductor.

[0066] In one implementation, the target diameter of the conductor to be measured is determined based on the diameter of the first conductor, the diameter of the second conductor, and the diameter of the third conductor as follows.

[0067] First, based on the correlation between conductor type and weight, determine the first weight, second weight, and third weight corresponding to the target conductor type of the conductor to be measured.

[0068] The sum of the weights of the first weight, the second weight, and the third weight is 1.

[0069] The first weight is greater than the second weight, and the second weight is greater than the third weight.

[0070] Secondly, the first weight, the second weight, and the third weight are respectively weighted and summed with the diameters of the first conductor, the second conductor, and the third conductor to obtain the target diameter.

[0071] In some embodiments, based on the example of the device also including an environmental parameter sensor, the intelligent control unit includes a preset model, which is a convolutional neural network model. The preset model is used to characterize the relationship between the environmental parameters, the first diameter, the second diameter, and the third diameter obtained by the three sensors in the multi-sensor measurement unit, and the actual diameter.

[0072] Therefore, in another implementation, the target diameter of the conductor to be tested can also be determined based on the following method.

[0073] First, obtain the current environmental parameters from environmental parameter sensors.

[0074] Current environmental parameters include current temperature, current humidity, and current wind speed.

[0075] Secondly, the current environmental parameters, the diameter of the first conductor, the diameter of the second conductor, and the diameter of the third conductor are input into the preset model to obtain the target diameter.

[0076] The device also includes a liquid crystal display module. The detection data acquired by the intelligent control unit is sent to the LCD display module; the detection data includes the target diameter; the LCD display module is controlled to display the detection data.

[0077] Based on an embodiment of the device including an automatically retractable telescopic insulating rod mechanism, a target clamping head is selected from multiple clamping heads according to the target conductor type of the conductor to be tested; the target angle range to which the target clamping head belongs is determined; and the fixing component is controlled to fix the target clamping head according to the target angle range.

[0078] This component provides a physical safety distance and insulation protection, eliminating the need for operators to directly contact or get too close to live wires, and eliminating the need for ladders or other climbing equipment, thus fundamentally avoiding the risks of electric shock and falls from heights. It also allows for the selection of a clamping head that is compatible with the wire type based on the relationship between the wire type and the clamping head.

[0079] In some implementations, the control device stops detecting when the intelligent control unit detects that the deviation between the diameters of the first, second, and third wires is greater than the corresponding standard deviation.

[0080] In some implementations, if the target diameter is determined to be greater than a target diameter threshold associated with the target wire type of the wire to be tested, the liquid crystal display module is controlled to display the target diameter according to a first display signal; if the target diameter is determined to be less than or equal to the target diameter threshold, the liquid crystal display module is controlled to display the target diameter according to a second display signal.

[0081] To achieve the above functions, the overhead power line conductor detection device includes corresponding hardware structures and / or software modules for performing each function. Those skilled in the art will readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0082] Regarding the apparatus in the above embodiments, the specific manner in which each unit module performs its operations has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0083] Figure 5 This is a schematic diagram of a conductor testing device for overhead power distribution lines provided in this application. Figure 5 The overhead power line conductor detection device 50 includes: a first processor 501, a communication bus 502, a memory 503, a communication interface 504, an output device 505, an input device 506, and a second processor 507.

[0084] The overhead power line conductor detection device 50 may include at least one first processor 501 and a memory 503 for storing processor-executable instructions. The first processor 501 is configured to execute the instructions in the memory 503 to implement the overhead power line conductor detection method in the following embodiments.

[0085] In addition, the overhead power line conductor detection equipment 50 may also include a communication bus 502, at least one communication interface 504, an input device 506, and an output device 505.

[0086] The first processor 501 may be a processor (central processing unit, CPU), a microprocessor unit, an ASIC, or one or more integrated circuits for controlling the execution of programs according to the present application.

[0087] The communication bus 502 may include a path for transmitting information between the aforementioned components.

[0088] Communication interface 504 uses any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0089] Input device 506 is used to receive input signals and output device 505 is used to output signals.

[0090] Memory 503 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. Memory may exist independently or be connected to the processing unit via a bus. Memory may also be integrated with the processing unit.

[0091] The memory 503 stores instructions for executing the scheme of this application, and the execution is controlled by the first processor 501. The first processor 501 executes the instructions stored in the memory 503 to realize the functions of the method of this application.

[0092] In a specific implementation, as one example, the first processor 501 may include one or more CPUs, for example... Figure 5 CPU0 and CPU1 in the CPU.

[0093] In a specific implementation, as one example, the overhead power line conductor detection device 50 may include multiple processors, such as... Figure 5 The first processor 501 and the second processor 507 are described. Each of these processors may be a single-core processor or a multi-core processor. A processor here may refer to one or more devices, circuits, and / or processing cores used to process data (such as computer program instructions).

[0094] The overhead power line conductor testing equipment, such as Figure 5The diagram shows a first processor 501 and a memory 503 for storing executable instructions of the first processor 501. The first processor 501 is configured to execute the executable instructions to implement the overhead power line conductor detection method as described in any of the possible embodiments above. Since the same technical effects can be achieved, further details are omitted here to avoid repetition.

[0095] This application also provides a computer-readable storage medium. When the instructions in the computer-readable storage medium are executed by the processor of the overhead power line conductor detection device, the overhead power line conductor detection device can perform the overhead power line conductor detection method as described in any of the possible embodiments above. And it can achieve the same technical effect; to avoid repetition, it will not be described again here.

[0096] This application also provides a computer program product, including a computer program or instructions, which are executed by a processor as described in any of the possible implementations of the overhead power line conductor detection method. This achieves the same technical effect, and to avoid repetition, it will not be described again here.

[0097] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0098] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method of detecting a conductor of a distribution overhead line, characterized in that, The application is applied to a power distribution overhead line conductor detection device, the power distribution overhead line conductor detection device comprises a cable clamping mechanism, a multi-sensor measurement unit and an intelligent control unit, the multi-sensor measurement unit is arranged on the cable clamping mechanism; the intelligent control unit is in communication connection with the multi-sensor measurement unit, the multi-sensor measurement unit comprises a CCD laser diameter measurement module, a displacement sensor and a pressure sensor; the method comprises: controlling the CCD laser diameter measurement module to detect the conductor to be measured to obtain a first conductor diameter; controlling the displacement sensor to detect the displacement change of the cable clamping mechanism after clamping the conductor to be measured to obtain a second conductor diameter; controlling the pressure sensor to detect the pressure on both sides of the cable clamping mechanism to obtain a clamping pressure difference, correcting and compensating the second conductor diameter based on the clamping pressure difference to obtain a third conductor diameter; when the intelligent control unit detects that the deviation between the first conductor diameter, the second conductor diameter and the third conductor diameter is less than or equal to the corresponding standard deviation, controlling the intelligent control unit to determine the target diameter of the conductor to be measured according to the first conductor diameter, the second conductor diameter and the third conductor diameter.

2. The method of claim 1, wherein, the correction and compensation of the second conductor diameter based on the clamping pressure difference to obtain a third conductor diameter, comprising: obtaining the target compensation length corresponding to the clamping pressure difference according to the correlation between the pressure difference and the compensation length; compensating the target compensation length to the second conductor diameter to obtain the third conductor diameter.

3. The method of claim 1, wherein, determining the target diameter of the conductor to be measured according to the first conductor diameter, the second conductor diameter and the third conductor diameter, comprising: determining the first weight, the second weight and the third weight corresponding to the target conductor type of the conductor to be measured according to the correlation between the conductor type and the weight; the sum of the weights of the first weight, the second weight and the third weight is 1; the first weight is greater than the second weight, and the second weight is greater than the third weight; weighting and summing the first weight, the second weight and the third weight with the first conductor diameter, the second conductor diameter and the third conductor diameter respectively to obtain the target diameter.

4. The method of claim 1, wherein, The device further comprises an environmental parameter sensor; the intelligent control unit comprises a preset model, the preset model is a convolutional neural network model, and the preset model is used to represent the correlation between the environmental parameters, the first diameter, the second diameter and the third diameter obtained by the three sensors in the multi-sensor measurement unit and the actual diameter; determining the target diameter of the conductor to be measured according to the first conductor diameter, the second conductor diameter and the third conductor diameter, comprising: obtaining the current environmental parameters from the environmental parameter sensor, the current environmental parameters include the current temperature, the current humidity and the current wind speed; inputting the current environmental parameters, the first conductor diameter, the second conductor diameter and the third conductor diameter into the preset model to obtain the target diameter.

5. The method of claim 1, wherein, The device further comprises a liquid crystal display module connected with the intelligent control unit, and the method further comprises: sending the detection data obtained by the intelligent control unit to the liquid crystal display module; the detection data comprises the target diameter; controlling the liquid crystal display module to display the detection data.

6. The method of claim 1, wherein, The device further comprises an automatically extendable telescopic insulating rod mechanism; the telescopic insulating rod mechanism comprises a fixed component, and the telescopic insulating rod mechanism is connected with the cable clamping mechanism to provide insulation support and length adjustment; the cable clamping mechanism comprises a plurality of clamping heads with different sizes, and the plurality of clamping heads are rotatably arranged on the fixed component; the fixed component is used for fixing any clamping head in the plurality of clamping heads; the method further comprises: selecting a target clamping head from the plurality of clamping heads according to the target wire type of the wire to be measured; determining a target angle range to which the target clamping head belongs; controlling the fixed component to fix the target clamping head according to the target angle range.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: controlling the device to stop detection when the intelligent control unit detects that the deviation between the first wire diameter, the second wire diameter and the third wire diameter is greater than the corresponding standard deviation.

8. The method of claim 5, wherein, The method further comprises: determining that the target diameter is greater than a target diameter threshold associated with the target wire type of the wire to be measured, and controlling the liquid crystal display module to display the target diameter according to a first display signal; determining that the target diameter is less than or equal to the target diameter threshold, and controlling the liquid crystal display module to display the target diameter according to a second display signal.

9. A power distribution overhead line conductor detection apparatus, characterized by, The device comprises: a cable clamping mechanism for fixing a wire to be measured; a multi-sensing measurement unit arranged on the cable clamping mechanism, comprising a CCD laser diameter measurement module, a displacement sensor and a pressure sensor, for collecting multi-dimensional wire diameter data of the wire to be measured; an intelligent control unit electrically connected with the multi-sensing measurement unit and the cable clamping mechanism, for data processing of the wire diameter data of the multi-sensing measurement unit to determine a target diameter; The device is configured to perform the power distribution overhead line wire detection method of claim 1.

10. The apparatus of claim 9, wherein, The device further comprises: an automatically extendable telescopic insulating rod mechanism for providing insulation support and length adjustment; the telescopic insulating rod mechanism comprises a fixed component, and the telescopic insulating rod mechanism is connected with the cable clamping mechanism; the cable clamping mechanism comprises a plurality of clamping heads with different sizes, and the plurality of clamping heads are rotatably arranged on the fixed component; the fixed component is used for fixing any clamping head in the plurality of clamping heads; an environmental parameter sensor for detecting environmental parameters of the wire to be measured; the environmental parameters comprise temperature, humidity and wind speed; the intelligent control unit is provided with a preset model, and the preset model is a convolutional neural network model; a liquid crystal display module connected with the intelligent control unit for displaying detection data; The device is configured to perform the power distribution overhead line wire detection method of any one of claims 1 to 8.

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