Intelligent inspection equipment for full passing ability of multi-split conductor

Abstract

The invention, which belongs to the technical field of wire inspection, discloses a multi-split-conductor full-passing intelligent inspection device comprising a folding-unfolding multi-arm frame of which the central main body is provided with radial telescopic arms of which the number is matched with that of split conductors, and the tail end of each telescopic arm is provided with a detection unit; the synchronous driving mechanism is connected with all the radial telescopic arms and is used for realizing synchronous unfolding or folding, so that the detection unit accurately envelopes the whole circumferential surface of the split conductor; and the intelligent analysis module is used for processing the wire state data acquired by the detection unit in real time and dynamically generating a three-dimensional defect model. According to the invention, a three-dimensional defect model is generated through the intelligent analysis module, full circumferential coverage is realized through equidistant expansion of a radial telescopic arm on a mechanical structure, constant contact pressure between a detection unit and a wire is guaranteed through movement synchronism, data acquisition omission is avoided, and safety risks and high-altitude operation cost of traditional manual detection are avoided; and full-surface non-blind-area detection of the multi-split conductor is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of wire inspection, and in particular relates to an intelligent inspection device for the full passability of multiple split wires. Background Art

[0002] Multi-split conductors are a conductor installation method used in ultra-high voltage transmission lines to suppress corona discharge and reduce line reactance. The number of split conductors per phase is called the split conductor count, and the distance between adjacent split conductors is called the split-phase distance. Ultra-high voltage transmission lines typically have 3 to 4 split conductors. Compared to a single conductor, the electromagnetic field distribution near a split conductor changes. The charge for each phase is distributed across each of the split conductors within that phase. This effectively increases the radius of the phase conductor, reducing the charge density on the conductor surface, and thus lowering the electric field intensity on the conductor surface, thereby suppressing corona discharge. The electric field distribution around different split conductors is shown for diameters of 5, 3.6, 2.9, and 2.5 cm, respectively; the split-phase distance is 45 cm; and the height above ground is 20 meters. Split conductors not only suppress corona discharge but also reduce line reactance and increase line capacitance, thereby lowering the line's wave impedance (see natural power), improving the natural power of the transmission line, and contributing to the stability of power system operation. Therefore, they are widely used in ultra-high voltage transmission lines. Existing multi-split conductor full pass inspection and testing equipment has blind spots when inspecting the conductors, and single-point inspection equipment does not perform complete inspections. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an intelligent inspection device for the full passability of multiple split conductors, thereby solving the problems in the above-mentioned background technology.

[0004] The purpose of the present invention is achieved as follows: a multi-split conductor full passability intelligent inspection device, which includes: a retractable multi-arm frame, the central body of which is provided with radial telescopic arms matching the number of split conductors, and each telescopic arm end is provided with a detection unit; a synchronous drive mechanism connecting all radial telescopic arms for realizing synchronous expansion or contraction, so that the detection unit accurately envelops the entire circumferential surface of the split conductor; an intelligent analysis module, which processes the conductor status data collected by the detection unit in real time and dynamically generates a three-dimensional defect model. When in use, the radial telescopic arms of the retractable multi-arm frame are expanded around the central body, so that each detection unit covers the multiple split conductors, the synchronous drive mechanism controls the synchronous movement of all telescopic arms to ensure that the detection unit is evenly attached to the conductor surface, the detection unit collects the conductor status data, and the intelligent analysis module generates a three-dimensional defect model. The mechanical structure achieves full circumferential coverage through the equidistant expansion of the radial telescopic arms, and the movement synchronization ensures constant contact pressure between the detection unit and the conductor, avoiding data omission, avoiding the safety risks and high-altitude operation costs of traditional manual detection, and realizing full-surface blind spot detection of multiple split conductors.

[0005] Furthermore, it also includes: an omnidirectional mobile platform, equipped with the multi-arm frame and equipped with a high-precision locator, to achieve continuous movement along the axial direction of the conductor; a control terminal, remotely controlling the equipment and visually displaying the defect analysis results and positioning information; a self-powered system, which includes a non-contact inductive power supply device for obtaining basic electrical energy from the alternating magnetic field of the conductor, a photovoltaic auxiliary unit for covering the top surface of the equipment to provide emergency power, and a supercapacitor group for maintaining system operation when power is interrupted. When in use, the omnidirectional mobile platform moves along the axial direction of the conductor, the high-precision locator records the position, the non-contact power supply device draws power from the magnetic field of the conductor, the photovoltaic unit replenishes energy, the supercapacitor maintains system operation when power is interrupted, and the magnetic adsorption track (tilt ≤ 45°) ensures the stability of the equipment on the inclined conductor. The inductive power supply converts the alternating magnetic field into electrical energy through the principle of magnetic coupling, solving the problem of sustainable energy supply for high-altitude equipment and realizing ultra-long-distance continuous detection.

[0006] Furthermore, the detection unit includes a multi-sensor fusion module, which integrates an eddy current detection array for covering the conductor surface area to identify metal fatigue cracks; a laser 3D scanner for reconstructing the conductor surface geometric deformation; and a UV imager for capturing the location of corona discharges in real time. The eddy current detection array utilizes a flexible curved surface layout, with a base layer made of a shape memory alloy sheet that adaptively conforms to the conductor curvature. It also features a matrix of embedded micro-coils and a self-compensating temperature control circuit to mitigate the effects of ambient temperature on detection accuracy. During operation, the eddy current detection array scans for metal cracks, the laser 3D scanner reconstructs surface deformation, and the UV imager captures the location of corona discharges. Eddy currents detect surface and near-surface metal defects, laser triangulation generates a submillimeter-precision point cloud, and UV photon counting locates the discharge point. Detection accuracy reaches 0.1 mm, compared to 5 mm for traditional visual inspection. Both physical damage (cracks / deformation) and electrical defects (corona) can be identified simultaneously.

[0007] Furthermore, the synchronous drive mechanism includes: a planetary gear set for equally transmitting the torque of the central motor to each telescopic arm; an optical encoder for real-time feedback of the arm span position; and an out-of-step emergency stop module for automatically locking when there is a displacement deviation between the arms. The intelligent analysis module includes executing: a multi-source data fusion algorithm to correlate eddy current signals, three-dimensional point clouds, and ultraviolet images; a deep learning-based defect classifier to identify defects such as cracks, corrosion, and broken strands; and a remaining life prediction model to evaluate the safety margin in combination with the stress history of the wire material. When in use, the planetary gear set distributes the central motor torque to each arm, and the optical encoder provides real-time feedback of the arm span position. When the deviation between the arms exceeds 0.5mm, the emergency stop lock is triggered. The planetary gears equally divide the torque to achieve mechanical synchronization. The encoder resolution is ±0.1mm, and the closed-loop control displacement accuracy prevents equipment damage due to single-arm jamming, reduces multi-arm motion synchronization errors, and eliminates uneven detection pressure caused by asynchronous motion of multi-degree-of-freedom robotic arms.

[0008] Furthermore, the omnidirectional mobile platform includes: a magnetic adsorption track for adapting to inclined wire working conditions; an inertial navigation system for compensating for positioning errors when the GPS signal is missing; and an obstacle-crossing actuator for actively lifting and crossing the anti-vibration hammer or spacer. The obstacle-crossing actuator includes a bionic joint structure, a millimeter-wave radar, and a dynamic path planner; the bionic joint structure is used to achieve pitch and yaw movement; the millimeter-wave radar is used to sense the three-dimensional contour of the anti-vibration hammer or spacer in advance; and the dynamic path planner is used to generate the optimal obstacle trajectory and synchronously adjust the arm span. When in use, the millimeter-wave radar detects obstacles 10 meters in advance, the dynamic path planner generates the obstacle-crossing trajectory, and the bionic joint adjusts the equipment's posture, breaking through the bottleneck of traditional detection equipment that needs to be disassembled when encountering obstacles and cannot operate continuously.

[0009] Furthermore, the control terminal includes a digital twin interface module and a defect heat map overlay module; the digital twin interface module is used to map the precise position and posture of the equipment on the wire in real time, and the defect heat map overlay module is used to mark the damage distribution on the three-dimensional model of the wire and generate a power maintenance report, thereby solving the pain points of the inability to visualize the detection data in real time and the inconsistent report format.

[0010] Furthermore, it also includes an outer shell, and the retractable multi-arm frame, synchronous drive mechanism and intelligent analysis module are all connected to the outer shell; the outer shell includes an anti-collision outer layer, an electromagnetic shielding layer and a sealed inner shell; the anti-collision outer layer is made of carbon fiber or Kevlar mixed composite material, and its curved surface blocks are connected by hinges using six groups of arc shells; the electromagnetic shielding layer includes an outer copper-nickel alloy plating layer, a middle permalloy mesh layer and an inner nanocrystalline strip layer, and the mesh density of the middle permalloy mesh layer is 200 mesh / cm²; a miniature two-stage air compressor and an air pressure sensor array are arranged inside the sealed inner shell, the miniature two-stage air compressor is used to output an air pressure higher than the ambient atmospheric pressure, and the air pressure sensor array is used to monitor the pressure balance of the partition in real time to solve the problem of equipment failure caused by strong electromagnetic interference and extreme weather.

[0011] The beneficial effects of the present invention are as follows: the radial telescopic arms of the retractable multi-arm frame are deployed around the central body, so that each detection unit covers the multiple split conductors. The synchronous drive mechanism controls the synchronous movement of all the telescopic arms to ensure that the detection units are evenly attached to the surface of the conductors. The detection units collect conductor status data, and the intelligent analysis module generates a three-dimensional defect model. The mechanical structure achieves full circumferential coverage through the equidistant deployment of the radial telescopic arms. The movement synchronization ensures constant contact pressure between the detection units and the conductors, avoiding data leakage, avoiding the safety risks and high-altitude operation costs of traditional manual inspection, and achieving full-surface blind-spot detection of multiple split conductors. When in use, the omnidirectional mobile platform moves along the axis of the conductor, the high-precision locator records the position, the non-contact power supply device draws power from the conductor's magnetic field, the photovoltaic unit supplements energy, the supercapacitor maintains system operation during power outages, the magnetic adsorption track (tilt ≤ 45°) ensures the stability of the equipment on the inclined conductor, and the inductive power supply converts the alternating magnetic field into electrical energy through the magnetic coupling principle, solving the problem of sustainable energy supply for high-altitude equipment and achieving ultra-long-distance continuous inspection.

[0012] The eddy current detection array scans metal cracks, the laser 3D scanner reconstructs surface deformation, the UV imager captures the corona discharge position, the eddy current detects surface / near-surface metal defects, the laser triangulation method generates sub-millimeter precision point clouds, and the UV photon counting locates the discharge point. The detection accuracy reaches 0.1mm, while traditional visual inspection is only at the 5mm level. It can simultaneously identify physical damage (cracks / deformation) and electrical defects (corona), breaking through the limitations of a single sensor and solving the problem of missed detection of complex defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the multi-arm frame structure of the present invention; Figure 2 Schematic diagram of the detection unit of the present invention; Figure 3 is a schematic diagram of the interior of the housing of the present invention; Figure 4 The present invention Figure 3 A in the middle is an enlarged view.

[0014] In the figure: 1 multi-arm frame, 2 telescopic arm, 3 detection unit, 4 synchronous drive mechanism, 5 intelligent analysis module, 6 eddy current detection array, 7 laser 3D scanner, 8 UV imager, 9 housing, 10 anti-collision outer layer, 11 electromagnetic shielding layer, 12 sealed inner housing, 13 miniature two-stage air compressor, 14 air pressure sensor array. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings. It should be pointed out that all directional words such as up, down, front, back, left, and right appearing in the present invention do not limit the present invention, but are only for the purpose of more clearly illustrating and explaining the present invention. Example 1

[0016] like Figure 1-4 As shown, this embodiment discloses an intelligent inspection device for the full passability of multiple split conductors, which includes: a retractable multi-arm frame 1, whose central body is provided with radial telescopic arms 2 matching the number of split conductors, and each telescopic arm 2 is provided with a detection unit 3 at the end; a synchronous drive mechanism 4 connecting all radial telescopic arms 2 for synchronous expansion or contraction, so that the detection units 3 accurately envelop the entire circumferential surface of the split conductors; and an intelligent analysis module 5 for real-time processing of the conductor status data collected by the detection units 3 and dynamically generating a three-dimensional defect model. During use, the radial telescopic arms 2 of the retractable multi-arm frame 1 are expanded around the central body, so that each detection unit 3 covers the multiple split conductors. The synchronous drive mechanism 4 controls the synchronous movement of all telescopic arms 2 to ensure that the detection units 3 evenly fit the conductor surface. The detection units 3 collect conductor status data, and the intelligent analysis module 5 generates a three-dimensional defect model. The mechanical structure achieves full circumferential coverage through the equidistant expansion of the radial telescopic arms 2. The synchronous movement ensures constant contact pressure between the detection units 3 and the conductors, avoiding data omission, avoiding the safety risks and high-altitude operation costs of traditional manual inspection, and achieving full-surface inspection of multiple split conductors without blind spots.

[0017] In order to achieve better results, it also includes an omnidirectional mobile platform, which is equipped with the multi-arm frame 1 and a high-precision locator to achieve continuous movement along the axial direction of the conductor; a control terminal to remotely control the equipment and visualize the defect analysis results and positioning information; a self-powered system, which includes a non-contact inductive power supply device for obtaining basic electrical energy from the alternating magnetic field of the conductor, a photovoltaic auxiliary unit for covering the top surface of the equipment to provide emergency power, and a supercapacitor group for maintaining system operation when power is interrupted. When in use, the omnidirectional mobile platform moves along the axial direction of the conductor, the high-precision locator records the position, the non-contact power supply device draws power from the magnetic field of the conductor, the photovoltaic unit replenishes energy, the supercapacitor maintains system operation when power is interrupted, and the magnetic adsorption track (tilt ≤ 45°) ensures the stability of the equipment on the inclined conductor. The inductive power supply converts the alternating magnetic field into electrical energy through the principle of magnetic coupling, solving the problem of sustainable energy supply for high-altitude equipment and achieving ultra-long-distance continuous detection.

[0018] To achieve optimal results, the detection unit 3 includes a multi-sensor fusion module, which integrates an eddy current detection array 6, which covers the conductor surface area to identify metal fatigue cracks; a 3D laser scanner 7, which reconstructs the conductor surface geometry; and a UV imager 8, which captures the location of corona discharges in real time. The eddy current detection array 6 utilizes a flexible curved surface layout. Its base layer is a shape memory alloy sheet, which adapts to the conductor curvature. It features a matrix of embedded micro-coils and a self-compensating temperature control circuit to eliminate the effects of ambient temperature on detection accuracy. During operation, the eddy current detection array 6 scans for metal cracks, the 3D laser scanner 7 reconstructs surface deformation, and the UV imager 8 captures the location of corona discharges. Eddy currents detect surface and near-surface metal defects, laser triangulation generates a submillimeter point cloud, and UV photon counting locates the discharge point. Detection accuracy reaches 0.1 mm, compared to 5 mm for traditional visual inspection. Both physical damage (cracks / deformation) and electrical defects (corona) can be identified simultaneously.

[0019] In order to achieve better results, the synchronous drive mechanism 4 includes: a planetary gear set for equally transmitting the torque of the central motor to each telescopic arm 2; an optical encoder for real-time feedback of the arm span position; and an out-of-step emergency stop module for automatically locking when there is a displacement deviation between the arms. The intelligent analysis module 5 includes the execution of: a multi-source data fusion algorithm that correlates eddy current signals, three-dimensional point clouds, and ultraviolet images; a deep learning-based defect classifier that identifies defects such as cracks, corrosion, and broken strands; and a remaining life prediction model that evaluates the safety margin in combination with the stress history of the wire material. When in use, the planetary gear set distributes the central motor torque to each arm, and the optical encoder provides real-time feedback of the arm span position. When the deviation between the arms exceeds 0.5mm, the emergency stop lock is triggered. The planetary gears equally divide the torque to achieve mechanical synchronization. The encoder resolution is ±0.1mm, and the closed-loop control displacement accuracy prevents equipment damage due to single-arm jamming, reduces multi-arm motion synchronization errors, and eliminates uneven detection pressure caused by asynchronous motion of multi-degree-of-freedom robotic arms. Example 2

[0020] like Figure 1-4As shown, this embodiment discloses an intelligent inspection device for the full passability of multiple split conductors, which includes: a retractable multi-arm frame 1, whose central body is provided with radial telescopic arms 2 matching the number of split conductors, and each telescopic arm 2 is provided with a detection unit 3 at the end; a synchronous drive mechanism 4 connecting all radial telescopic arms 2 for synchronous expansion or contraction, so that the detection units 3 accurately envelop the entire circumferential surface of the split conductors; and an intelligent analysis module 5 for real-time processing of the conductor status data collected by the detection units 3 and dynamically generating a three-dimensional defect model. During use, the radial telescopic arms 2 of the retractable multi-arm frame 1 are expanded around the central body, so that each detection unit 3 covers the multiple split conductors. The synchronous drive mechanism 4 controls the synchronous movement of all telescopic arms 2 to ensure that the detection units 3 evenly fit the conductor surface. The detection units 3 collect conductor status data, and the intelligent analysis module 5 generates a three-dimensional defect model. The mechanical structure achieves full circumferential coverage through the equidistant expansion of the radial telescopic arms 2. The synchronous movement ensures constant contact pressure between the detection units 3 and the conductors, avoiding data omission, avoiding the safety risks and high-altitude operation costs of traditional manual inspection, and achieving full-surface inspection of multiple split conductors without blind spots.

[0021] In order to achieve better results, it also includes: an omnidirectional mobile platform, equipped with the multi-arm frame 1 and equipped with a high-precision locator to achieve continuous movement along the axial direction of the conductor; a control terminal, which remotely controls the equipment and visually displays the defect analysis results and positioning information; a self-powered system, which includes a non-contact inductive power supply device for obtaining basic electrical energy from the alternating magnetic field of the conductor, a photovoltaic auxiliary unit for covering the top surface of the equipment to provide emergency power, and a supercapacitor group for maintaining system operation when power is interrupted. When in use, the omnidirectional mobile platform moves along the axial direction of the conductor, the high-precision locator records the position, the non-contact power supply device draws power from the magnetic field of the conductor, the photovoltaic unit replenishes energy, the supercapacitor maintains system operation when power is interrupted, and the magnetic adsorption track (tilt ≤ 45°) ensures the stability of the equipment on the inclined conductor. The inductive power supply converts the alternating magnetic field into electrical energy through the principle of magnetic coupling, solving the problem of sustainable energy supply for high-altitude equipment and achieving ultra-long-distance continuous detection.

[0022] To achieve optimal results, the detection unit 3 includes a multi-sensor fusion module, which integrates an eddy current detection array 6, which covers the conductor surface area to identify metal fatigue cracks; a 3D laser scanner 7, which reconstructs the conductor surface geometry; and a UV imager 8, which captures the location of corona discharges in real time. The eddy current detection array 6 utilizes a flexible curved surface layout. Its base layer is a shape memory alloy sheet, which adapts to the conductor curvature. It features a matrix of embedded micro-coils and a self-compensating temperature control circuit to eliminate the effects of ambient temperature on detection accuracy. During operation, the eddy current detection array 6 scans for metal cracks, the 3D laser scanner 7 reconstructs surface deformation, and the UV imager 8 captures the location of corona discharges. Eddy currents detect surface and near-surface metal defects, laser triangulation generates a submillimeter point cloud, and UV photon counting locates the discharge point. Detection accuracy reaches 0.1 mm, compared to 5 mm for traditional visual inspection. Both physical damage (cracks / deformation) and electrical defects (corona) can be identified simultaneously.

[0023] In order to achieve better results, the synchronous drive mechanism 4 includes: a planetary gear set for equally transmitting the torque of the central motor to each telescopic arm 2; an optical encoder for real-time feedback of the arm span position; and an out-of-step emergency stop module for automatically locking when there is a displacement deviation between the arms. The intelligent analysis module 5 includes the execution of: a multi-source data fusion algorithm that correlates eddy current signals, three-dimensional point clouds, and ultraviolet images; a deep learning-based defect classifier that identifies defects such as cracks, corrosion, and broken strands; and a remaining life prediction model that evaluates the safety margin in combination with the stress history of the wire material. When in use, the planetary gear set distributes the central motor torque to each arm, and the optical encoder provides real-time feedback of the arm span position. When the deviation between the arms exceeds 0.5mm, the emergency stop lock is triggered. The planetary gears equally divide the torque to achieve mechanical synchronization. The encoder resolution is ±0.1mm, and the closed-loop control displacement accuracy prevents equipment damage due to single-arm jamming, reduces multi-arm motion synchronization errors, and eliminates uneven detection pressure caused by asynchronous motion of multi-degree-of-freedom robotic arms.

[0024] To achieve better results, the omnidirectional mobile platform includes: magnetic tracks for adapting to tilted conductor conditions; an inertial navigation system for compensating for positioning errors when GPS signals are missing; and an obstacle-crossing actuator for actively lifting and crossing anti-vibration hammers or spacers. The obstacle-crossing actuator includes a bionic joint structure, a millimeter-wave radar, and a dynamic path planner. The bionic joint structure is used to achieve pitch and yaw motion; the millimeter-wave radar is used to sense the three-dimensional contours of the anti-vibration hammer or spacer in advance; and the dynamic path planner is used to generate the optimal obstacle trajectory and synchronously adjust the arm span. During use, the millimeter-wave radar detects obstacles 10 meters in advance, the dynamic path planner generates the obstacle-crossing trajectory, and the bionic joint adjusts the equipment's posture, breaking through the bottleneck of traditional detection equipment that requires disassembly when encountering obstacles and cannot operate continuously.

[0025] To achieve better results, the control terminal includes a digital twin interface module and a defect heat map overlay module; the digital twin interface module is used to map the precise position and posture of the equipment on the wire in real time, and the defect heat map overlay module is used to mark the damage distribution on the three-dimensional model of the wire and generate a power maintenance report to solve the pain points of the inability to visualize the detection data in real time and the inconsistent report format.

[0026] For better effect, it also includes a shell, and the retractable multi-arm frame 1, the synchronous drive mechanism 4 and the intelligent analysis module 5 are all connected to the shell; the shell includes an anti-collision outer layer 10, an electromagnetic shielding layer 11 and a sealed inner shell 12; the anti-collision outer layer 10 is made of carbon fiber or Kevlar mixed composite material, and its curved surface blocks are connected by hinges using six groups of arc shells; the electromagnetic shielding layer 11 includes an outer copper-nickel alloy plating layer, a middle permalloy mesh layer and an inner nanocrystalline strip layer, and the mesh density of the middle permalloy mesh layer is 200 mesh / cm²; a micro two-stage air compressor 13 and an air pressure sensor array 14 are arranged inside the sealed inner shell 12, the micro two-stage air compressor 13 is used to output an air pressure higher than the ambient atmospheric pressure, and the air pressure sensor array 14 is used to monitor the pressure balance of the partition in real time to solve the problem of equipment failure caused by strong electromagnetic interference and extreme weather.

[0027] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the scope of protection of the present invention.

Claims

1. An intelligent inspection device for the full passability of multiple split conductors, characterized in that: include: The retractable multi-arm frame has a central body with radial telescopic arms that match the number of split conductors, and a detection unit is set at the end of each telescopic arm; A synchronous drive mechanism connects all radial telescopic arms to achieve synchronous expansion or contraction, so that the detection unit accurately envelops the entire circumferential surface of the split conductor; The intelligent analysis module processes the conductor status data collected by the detection unit in real time and dynamically generates a three-dimensional defect model.

2. The multi-split conductor full pass intelligent inspection device according to claim 1 is characterized in that: Also includes: An omnidirectional mobile platform, equipped with the multi-arm frame and a high-precision positioner, can achieve continuous movement along the conductor axis; Control terminal, remotely control equipment and visualize defect analysis results and location information; A self-powered system includes a contactless inductive power supply device for obtaining basic electrical energy from the alternating magnetic field of the conductor, a photovoltaic auxiliary unit for covering the top surface of the equipment to provide emergency power, and a supercapacitor group for maintaining system operation when power is interrupted.

3. The intelligent inspection device for the full passability of multiple split conductors according to claim 2, characterized in that: The detection unit includes a multi-sensor fusion module, which is integrated with: Eddy current detection array, used to cover the surface area of ​​the conductor to identify metal fatigue cracks; Laser 3D scanner, used to reconstruct the geometric deformation of the wire surface; UV imager for capturing the location of corona discharge in real time.

4. The intelligent inspection device for the full passability of multiple split conductors according to claim 3 is characterized in that: The eddy current detection array adopts a flexible curved surface layout. The base layer of the eddy current detection array is a shape memory alloy thin plate, which is used to adaptively fit the curvature of the wire. The matrix-type micro-coil is embedded and arranged, and the self-compensating temperature control circuit is used to eliminate the influence of ambient temperature on detection accuracy.

5. The intelligent inspection device for the full passability of multiple split conductors according to claim 1, characterized in that: The synchronous drive mechanism comprises: A planetary gear set is used to equally transmit the torque of the central motor to each telescopic arm; Optical encoder for real-time feedback of arm span position; The out-of-step emergency stop module is used to automatically lock when there is a displacement deviation between the arms.

6. The intelligent inspection device for the full passability of multiple split conductors according to claim 1, characterized in that: The intelligent analysis module includes executing: a multi-source data fusion algorithm to correlate eddy current signals, 3D point clouds and ultraviolet images; a deep learning-based defect classifier to identify defects such as cracks, corrosion and broken strands; and a remaining life prediction model to evaluate safety margins based on the stress history of the conductor material.

7. The intelligent inspection device for the full passability of multiple split conductors according to claim 2, characterized in that: The omnidirectional mobile platform includes: a magnetic adsorption track for adapting to inclined wire working conditions; an inertial navigation system for compensating for positioning errors when GPS signals are missing; and an obstacle-crossing actuator for actively lifting and crossing anti-vibration hammers or spacer bars.

8. The intelligent inspection device for the full passability of multiple split conductors according to claim 7, characterized in that: The obstacle-crossing actuator includes a bionic joint structure, a millimeter-wave radar, and a dynamic path planner; the bionic joint structure is used to achieve pitch and yaw movements; the millimeter-wave radar is used to sense the three-dimensional contour of the anti-vibration hammer or spacer in advance; and the dynamic path planner is used to generate the optimal obstacle-crossing trajectory and synchronously adjust the arm span.

9. The intelligent inspection device for the full passability of multiple split conductors according to claim 2, characterized in that: The control terminal includes a digital twin interface module and a defect heat map overlay module; the digital twin interface module is used to map the precise position and posture of the equipment on the wire in real time, and the defect heat map overlay module is used to mark the damage distribution on the three-dimensional model of the wire and generate a power maintenance report.

10. The intelligent inspection device for the full passability of multiple split conductors according to claim 1, characterized in that: It also includes an outer shell, and the retractable multi-arm frame, synchronous drive mechanism and intelligent analysis module are all connected to the outer shell; the outer shell includes an anti-collision outer layer, an electromagnetic shielding layer and a sealed inner shell; the anti-collision outer layer is made of carbon fiber or Kevlar mixed composite material, and its curved surface blocks are connected by hinges using six groups of arc shells; the electromagnetic shielding layer includes an outer copper-nickel alloy plating layer, a middle permalloy mesh layer and an inner nanocrystalline strip layer, and the mesh density of the middle permalloy mesh layer is 200 mesh / cm²; a micro two-stage air compressor and an air pressure sensor array are arranged inside the sealed inner shell, the micro two-stage air compressor is used to output an air pressure higher than the ambient atmospheric pressure, and the air pressure sensor array is used to monitor the pressure balance of the partition in real time.

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