Method and system for determining physical state of wire and nonvolatile storage medium

Abstract

The invention discloses a physical state determination method and system of a wire and a nonvolatile storage medium. The method comprises the following steps: acquiring first magnetic induction intensity generated by a coil winding; second magnetic induction intensity detected by the magnetic induction sensing device is obtained, the coil winding and the magnetic induction sensing device are arranged on the two sides of the target wire in the radial direction of the target wire, and the radial direction is the direction of one diameter of the same cross section of the target wire; the physical state of the steel core included in the target wire is determined based on the first magnetic induction intensity and the second magnetic induction intensity, and the physical state is used for measuring the deformation degree of the steel core. The technical problem that the accuracy of the physical state determination result of the steel core in the wire is poor in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the field of power systems, and in particular to a method and system for determining the physical state of a conductor and a non-volatile storage medium. Background Art

[0002] In the operation and maintenance of transmission lines, ensuring the integrity of conductors is crucial for the stable operation of power systems. Steel-core aluminum stranded conductors, a widely used transmission line material, have an internal steel core that provides important mechanical support. However, long-term exposure to various natural and human factors outdoors, such as wind erosion, corrosion, overheating, and mechanical damage, can cause deformation or damage to the steel core, weakening the conductor's mechanical strength and even causing disconnection accidents, seriously affecting the safety and reliability of power transmission. Therefore, determining the physical condition of the conductor's steel core is of great significance for fault diagnosis and early warning of conductor faults, and for maintaining the safe and reliable operation of power systems.

[0003] Related technologies use methods such as manual inspection, magnetic particle inspection, and ultrasonic testing to detect the physical state of conductors. Manual inspection mainly relies on external visual inspection, which makes it difficult to detect steel core damage hidden inside the conductor, especially small or gradually developing internal problems; magnetic particle inspection mainly detects defects on the surface or near the surface of the conductor. For damage located deep inside the steel core, the sensitivity is greatly reduced, and it may not be possible to accurately identify changes in the physical state of the steel core; when using ultrasonic testing methods, the composite structure and conductivity of the conductor (such as steel core aluminum stranded wire) may interfere with the transmission and reception of ultrasonic signals, reducing the clarity and reliability of the detection signal, resulting in large errors in the detection results of the physical state of the steel core. Therefore, there is a technical problem in the related technology of poor accuracy in determining the physical state of the steel core in the conductor.

[0004] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0005] The embodiments of the present application provide a method and system for determining the physical state of a conductor, and a non-volatile storage medium, to at least solve the technical problem in the related art of poor accuracy in determining the physical state of a steel core in a conductor.

[0006] According to one aspect of an embodiment of the present application, a method for determining the physical state of a conductor is provided, comprising: obtaining a first magnetic induction intensity generated by a coil winding; obtaining a second magnetic induction intensity detected by a magnetic induction sensor device, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target conductor along a radial direction of the target conductor, and the radial direction is the direction of a diameter of the same cross-section of the target conductor; and determining the physical state of a steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the physical state is used to measure the degree of deformation of the steel core.

[0007] Optionally, obtaining the first magnetic induction intensity generated by the coil winding includes: determining a current value of a current passing through the coil winding and the number of turns of the coil winding; and determining the first magnetic induction intensity based on the number of turns and the current value.

[0008] Optionally, determining the physical state of the steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity includes: correcting the second magnetic induction intensity to obtain a corrected magnetic induction intensity; determining an actual magnetic induction change based on the first magnetic induction intensity and the corrected magnetic induction intensity; and determining the physical state based on the actual magnetic induction change and a standard magnetic induction change of the target conductor, wherein the standard magnetic induction change is measured for the steel core under a predetermined state.

[0009] Optionally, determining the physical state based on the actual magnetic induction change and the standard magnetic induction change of the target conductor includes: determining the magnetic induction error based on the actual magnetic induction change and the standard magnetic induction change; and determining the physical state based on the magnetic induction error and a predetermined error threshold.

[0010] Optionally, the physical state is determined based on the magnetic induction error and a predetermined error threshold, including: when the magnetic induction error is less than the error threshold, determining that the physical state is that the degree of deformation of the steel core is slightly deformed; or when the magnetic induction error is greater than or equal to the error threshold, determining that the physical state is that the degree of deformation of the steel core is severely deformed.

[0011] Optionally, the second magnetic induction intensity is corrected to obtain a corrected magnetic induction intensity, including: determining environmental data of the area where the target wire is located, and a sensor drift of the magnetic induction sensor device, wherein the sensor drift is used to describe the measurement error caused by aging of the magnetic induction sensor device; based on the environmental data and the sensor drift, the second magnetic induction intensity is corrected to obtain a corrected magnetic induction intensity.

[0012] According to another aspect of an embodiment of the present application, a system for determining the physical state of a conductor is provided, comprising: a magnetic field excitation power supply component and a signal acquisition and processing component, wherein the magnetic field excitation power supply component is used to obtain a first magnetic induction intensity generated by a coil winding; the signal acquisition and processing component is connected to the magnetic field excitation power supply component, and is used to obtain a second magnetic induction intensity detected by a magnetic induction sensor device, and determine the physical state of a steel core included in a target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target conductor along a radial direction of the target conductor, the radial direction being the direction of a diameter of the same cross section of the target conductor, and the physical state is used to measure the degree of deformation of the steel core.

[0013] Optionally, the magnetic field excitation power supply component includes: a coil winding, a power supply module, and an induction power supply module, wherein the induction power supply module is used to obtain current from the target wire by induction power supply; the power supply module is connected to the induction power supply module and is used to store the current obtained by the power supply module; the coil winding is connected to the power supply module and is used to generate a first magnetic induction intensity based on the current stored in the power supply module.

[0014] Optionally, the signal acquisition and processing component includes: a magnetic induction sensor device and a circuit processing and acquisition module, wherein the magnetic induction sensor device is used to obtain the second magnetic induction intensity; the circuit processing and acquisition module is connected to the magnetic induction sensor device and is used to determine the physical state of the steel core based on the second magnetic induction intensity and the first magnetic induction intensity.

[0015] According to another aspect of an embodiment of the present application, a non-volatile storage medium is provided. The non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executed by any one of the methods for determining the physical state of a wire.

[0016] According to another aspect of an embodiment of the present application, an electronic device is provided, comprising: one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by one or more processors, the one or more processors implement any one of the methods for determining the physical state of a conductor.

[0017] In an embodiment of the present application, a first magnetic induction intensity generated by a coil winding is obtained; a second magnetic induction intensity detected by a magnetic induction sensor device is obtained, wherein the coil winding and the magnetic induction sensor device are respectively arranged on either side of the target conductor along a radial direction of the target conductor, where the radial direction is the direction of a diameter of the same cross-section of the target conductor; and the physical state of the steel core included in the target conductor is determined based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the physical state is used to measure the degree of deformation of the steel core. This achieves the purpose of arranging the coil winding and the magnetic induction sensor device on either side of the conductor radially, and determining the physical state of the steel core included in the conductor based on the first magnetic induction intensity generated by the coil winding and the second magnetic induction intensity measured by the magnetic induction sensor device, thereby achieving the technical effect of improving the accuracy of the results of determining the physical state of the conductor steel core, thereby resolving the technical problem of poor accuracy of the results of determining the physical state of the conductor steel core in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a flow chart of an optional method for determining the physical state of a wire provided according to an embodiment of the present application;

[0020] Figure 2 1 is a schematic structural diagram of an optional system for determining the physical state of a wire provided according to an embodiment of the present application;

[0021] Figure 3 This is a structural diagram of an optional inductive power supply module provided according to an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of an optional principle for determining the physical state of a wire provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] According to an embodiment of the present application, a method embodiment of a method for determining the physical state of a conductor is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0026] Figure 1 This is a flow chart of an optional method for determining the physical state of a wire provided in an embodiment of the present application, such as Figure 1 As shown, the method includes the following steps:

[0027] Step S102, obtaining a first magnetic induction intensity generated by the coil winding;

[0028] It can be understood that a radial coil winding is provided at a certain portion of a target conductor (e.g., steel-core aluminum stranded conductor). The coil winding is energized to generate a magnetic field distributed in the radial direction of the conductor, and the strength of this magnetic field is determined as a first magnetic induction intensity. By obtaining the first magnetic induction intensity generated by the coil winding, a quantitative data foundation can be provided for subsequent comparison and analysis, making the physical condition assessment of the steel core more scientific and accurate. At the same time, the non-contact design of the coil winding and the conductor ensures that the detection process does not interfere with the normal operation of the conductor, thereby improving detection efficiency and safety.

[0029] In an optional embodiment, obtaining the first magnetic induction intensity generated by the coil winding includes: determining the current value of the current passing through the coil winding and the number of turns of the coil winding; and determining the first magnetic induction intensity based on the number of turns and the current value.

[0030] It can be understood that to determine the first magnetic induction intensity generated by the coil winding, it is first necessary to determine the current value of the current passing through the coil winding; secondly, the number of turns in the coil winding. The first magnetic induction intensity generated by the coil winding is determined based on the current value of the current passing through the coil winding and the number of turns in the coil winding. By precisely controlling the magnetic field excitation source (i.e., the first magnetic induction intensity generated by the coil winding), the detection sensitivity can be improved. Even minor steel core damage, such as slight corrosion or fracture, can be reflected through changes in the magnetic field, thereby improving the accuracy of the results of the determination of the physical condition of the steel core.

[0031] Optionally, a magnetic field excitation source (ie, a first magnetic induction intensity) can be generated by energizing the coil winding, and the magnitude of the first magnetic induction intensity can be controlled by controlling the number of turns of the coil winding and the magnitude of the current passing through the coil winding.

[0032] Step S104, obtaining a second magnetic induction intensity detected by the magnetic induction sensor device, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target wire along a radial direction of the target wire, where the radial direction is a direction of a diameter of a same cross section of the target wire;

[0033] It can be understood that the coil winding is placed on one side of the target conductor and is arranged along the radial direction of the conductor to ensure that the direction of the magnetic flux lines generated is perpendicular to the direction of the magnetic flux lines generated by the current in the conductor. The magnetic induction sensor device is arranged on the other side of the target conductor along the radial direction of the conductor, so that the magnetic induction sensor device can measure the magnetic field generated by the coil winding and the second magnetic induction intensity after passing through the conductor and its internal steel core. The above-mentioned radial direction is the direction of a diameter of the same cross-section of the target conductor. The above-mentioned steel core physical state detection device based on coil windings and magnetic induction sensor devices can be deployed on the target conductor for a long time to realize real-time and continuous data collection and transmission, and provide timely and accurate information support for the health management and fault warning of the target conductor.

[0034] Optionally, the second magnetic induction intensity can be detected by a magnetic induction sensor device. A magnetic induction sensor device is a device that converts a measured magnetic signal into an electrical signal. By utilizing the transformation relationship between magnetic quantities and other physical quantities, and using a magnetic field as a medium, its physical quantity signal is converted into an electrical signal. Types of magnetic induction sensor devices include Hall sensors, tunnel magnetoresistance (TMR) sensing elements, giant magnetoresistance (GMR) sensors, anisotropic magnetoresistance (AMR) sensors, and other magnetic induction devices that respond to magnetic field directionality and convert magnetic signals into electrical signals.

[0035] Alternatively, a coil winding can be placed on one side of the steel-core aluminum stranded wire and a magnetic induction sensor device can be placed on the other side. Specifically, the magnetic induction sensor device can be placed opposite the coil winding. This allows the magnetic induction sensor device to respond to the magnetic field generated by the coil winding current. The magnetic induction sensor device is placed radially along the steel-core aluminum stranded wire, perpendicular to the magnetic flux lines of the current flowing through the steel-core aluminum stranded wire. Therefore, the magnetic field generated by the current in the steel-core aluminum stranded wire will not be responded to by the magnetic induction device.

[0036] Step S106 : determining a physical state of a steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the physical state is used to measure a degree of deformation of the steel core.

[0037] It can be understood that the physical condition of the target conductor's steel core (e.g., changes in cross-sectional area and shape) is determined based on the first magnetic induction intensity generated by the coil windings and the second magnetic induction intensity measured by the magnetic induction sensor device. By quantifying and analyzing differences in magnetic field response, the physical condition of the steel core can be accurately assessed, converting invisible damage into a specific deformation value, providing a scientific basis for conductor maintenance.

[0038] Optionally, a coil winding can be set on one side of the steel-core aluminum stranded wire conductor (i.e., the target conductor) in the transmission line to generate a magnetic field excitation source, and then a magnetic induction sensor device can be set on the other side of the steel-core aluminum stranded wire and in the coaxial direction of the coil winding. The setting direction of the coil winding is the radial direction of the steel-core aluminum stranded wire, so that the direction of the magnetic flux lines generated by it is perpendicular to the direction of the magnetic flux lines generated by the current in the steel-core aluminum stranded wire. When the current passes through the coil winding, the coil winding generates an excitation magnetic field and magnetizes the steel core longitudinally. When the physical properties of the steel-core aluminum stranded wire change, such as when the steel core has broken strands, pores or corrosion, the physical state of the steel core, such as the cross-sectional area and shape, will change, thereby causing the leakage magnetic field generated to change compared to when the physical state of the steel core is normal. The magnetic induction sensor device can detect the above-mentioned magnetic signal and convert it into an electrical signal, thereby inferring the change in the physical state of the steel core in the steel-core aluminum stranded wire.

[0039] In an optional embodiment, determining the physical state of a steel core included in a target conductor based on a first magnetic induction intensity and a second magnetic induction intensity includes: correcting the second magnetic induction intensity to obtain a corrected magnetic induction intensity; determining an actual magnetic induction variation based on the first magnetic induction intensity and the corrected magnetic induction intensity; and determining the physical state based on the actual magnetic induction variation and a standard magnetic induction variation of the target conductor, wherein the standard magnetic induction variation is measured for the steel core under a predetermined state.

[0040] It can be understood that in order to further improve the accuracy of the results of determining the physical state of the steel core, the second magnetic induction intensity measured by the magnetic induction sensor device is corrected to obtain a corrected magnetic induction intensity. Based on the corrected magnetic induction intensity and the first magnetic induction intensity, the actual magnetic induction change of the magnetic field generated by the coil winding after passing through the target conductor is determined. The physical state of the steel core in the target conductor is determined based on the actual magnetic induction change and the standard magnetic induction change measured when the steel core is in a predetermined state (for example, a state where the conductor steel core is undamaged). By correcting the second magnetic induction intensity and comparing it with the first magnetic induction intensity, the damage type of the conductor steel core can be accurately identified, a quantitative assessment of the damage can be achieved, and the accuracy of the detection results can be improved.

[0041] In an optional embodiment, the physical state is determined based on the actual magnetic induction change and the standard magnetic induction change of the target conductor, including: determining the magnetic induction error based on the actual magnetic induction change and the standard magnetic induction change; and determining the physical state based on the magnetic induction error and a predetermined error threshold.

[0042] As can be understood, the difference between the actual magnetic induction change and the standard magnetic induction change is calculated to obtain the magnetic induction error. Based on this magnetic induction error and a predetermined error threshold, the physical condition of the steel core is determined. The magnetic induction error data provides an intuitive quantitative indicator for determining the physical condition of the steel core, reducing the subjectivity and potential errors of manual judgment, thereby improving the consistency and objectivity of the test results.

[0043] In an optional embodiment, the physical state is determined based on the magnetic induction error and a predetermined error threshold, including: when the magnetic induction error is less than the error threshold, determining the physical state as the degree of deformation of the steel core is slightly deformed; or when the magnetic induction error is greater than or equal to the error threshold, determining the physical state as the degree of deformation of the steel core is severely deformed.

[0044] It can be understood that if the magnetic induction error of the steel core is less than the error threshold, the steel core deformation is mild; if the magnetic induction error of the steel core is greater than or equal to the error threshold, the steel core deformation is severe. By setting a reasonable error threshold, potential steel core damage can be detected early, allowing timely maintenance measures to be taken, avoiding line failures caused by the deterioration of the steel core's physical condition and enhancing the stability and security of the power system.

[0045] In an optional embodiment, the second magnetic induction intensity is corrected to obtain a corrected magnetic induction intensity, including: determining environmental data of the area where the target wire is located, and a sensor drift of the magnetic induction sensor device, wherein the sensor drift is used to describe the measurement error caused by aging of the magnetic induction sensor device; and correcting the second magnetic induction intensity based on the environmental data and the sensor drift to obtain a corrected magnetic induction intensity.

[0046] It is understood that environmental data collected in the area where the target conductor is located, including but not limited to temperature, humidity, wind speed, and atmospheric pressure, directly impacts magnetic field measurements. Sensor drift, which describes measurement errors due to aging of the magnetic induction sensor, is determined. Based on this environmental data and sensor drift, the second magnetic induction intensity is corrected to eliminate measurement errors caused by environmental factors and sensor aging, resulting in a corrected magnetic induction intensity. By collecting and compensating for this environmental data, the measuring device can operate stably in a variety of climatic and geographical conditions, unaffected by environmental interference, thereby enhancing its practicality.

[0047] Optionally, a machine learning model can be used to determine a corrected magnetic induction intensity based on the second magnetic induction intensity. The second magnetic induction intensity, the collected environmental data, and the sensor drift are input into a trained machine learning model to obtain the corrected magnetic induction intensity. The machine learning model has previously learned the correspondence between the environmental data, sensor drift, and the corrected magnetic induction intensity.

[0048] Optionally, the sensor drift amount may be determined by periodically calibrating the magnetic induction sensor device and comparing measurement results before and after calibration to determine the sensor drift amount of the magnetic induction sensor device.

[0049] Through the above steps S102 to S106, the purpose of determining the physical state of the steel core included in the conductor can be achieved by respectively arranging coil windings and magnetic induction sensor devices on both sides of the radial direction of the conductor, and based on the first magnetic induction intensity generated by the coil windings and the second magnetic induction intensity measured by the magnetic induction sensor devices, thereby achieving the technical effect of improving the accuracy of the results of determining the physical state of the steel core of the conductor, thereby solving the technical problem of poor accuracy of the results of determining the physical state of the steel core in the conductor existing in the related art.

[0050] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0051] In an embodiment of the present application, a system for determining the physical state of a conductor is further provided. The following introduces the system for determining the physical state of a conductor provided in an embodiment of the present application.

[0052] Figure 2 FIG. 1 is a structural block diagram of a system for determining the physical state of a conductor according to an embodiment of the present application. Figure 2 As shown, the system includes: a magnetic field excitation power supply component 202 and a signal acquisition and processing component 204, and the system will be described below.

[0053] A magnetic field excitation power supply component 202 is used to obtain a first magnetic induction intensity generated by the coil winding;

[0054] The signal acquisition and processing component 204 is connected to the magnetic field excitation power supply component 202 and is used to obtain the second magnetic induction intensity detected by the magnetic induction sensor device, and determine the physical state of the steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target conductor along the radial direction of the target conductor, and the radial direction is the direction of a diameter of the same cross section of the target conductor. The physical state is used to measure the degree of deformation of the steel core.

[0055] It can be understood that the magnetic field excitation power supply component is arranged on one side of the target conductor in the radial direction, and the signal acquisition and processing component is arranged on the other side of the target conductor in the radial direction, wherein the radial direction is the direction of a diameter of the same cross section of the target conductor. The coil winding in the magnetic field excitation power supply component is energized to generate a magnetic field distributed along the radial direction of the conductor, and the strength of the magnetic field is determined as the first magnetic induction intensity. After the coil winding generates the first magnetic induction intensity, the magnetic induction sensor device in the signal acquisition and processing component is used to measure the magnetic field generated by the coil winding, and the second magnetic induction intensity after passing through the conductor and its internal steel core. The above-mentioned steel core physical state detection device based on the coil winding and the magnetic induction sensor device can be deployed on the target conductor for a long time to realize real-time and continuous data acquisition and transmission, and provide timely and accurate information support for the health management and fault warning of the target conductor.

[0056] As an optional embodiment, a magnetic field excitation power supply component includes: a coil winding, a power supply module, and an induction power supply module, wherein the induction power supply module is used to obtain current from the target wire by induction power supply; the power supply module is connected to the induction power supply module and is used to store the current obtained by the power supply module; the coil winding is connected to the power supply module and is used to generate a first magnetic induction intensity based on the current stored in the power supply module.

[0057] It can be understood that the magnetic field excitation power supply component can include, but is not limited to, a coil winding, a power supply module, and an induction power supply module. The induction power supply module uses induction power supply to obtain current from the target conductor. The power supply module is connected to the induction power supply module, and the power supply module includes a battery module and a supercapacitor group, wherein the battery module is used to store the current generated by the induction power supply module, and the supercapacitor can release a large current when needed to meet the instantaneous high energy demand when the coil winding generates a strong magnetic field. The coil winding is connected to the power supply module. When the power supply module uses the stored current to power the coil winding, the coil winding will generate a magnetic field, and the strength of the magnetic field is determined as the first magnetic induction intensity. Through the coordinated work of the induction power supply module, the power supply module and the coil winding, the physical state of the steel core of the target conductor can be automatically detected, the accuracy and efficiency of the detection can be improved, and the maintenance cost of the conductor can be reduced, and the stability and safety of the power system operation can be enhanced.

[0058] Optionally, for Figure 2 The physical state of the wire shown determines the magnetic field excitation power supply components in the system, including coil windings, power modules (including supercapacitors and battery modules), power processing circuits, and induction power modules consisting of electromagnetic rings and secondary windings. The function of the induction power module is to inductively draw power from the steel-core aluminum stranded wire under test (i.e., the target conductor) through the electromagnetic ring of the induction power module, and output AC induced power; the power processing circuit is connected to the induction power module, and its function is to convert the AC induced power into DC power that can be used by the system, and has functions such as safety isolation and noise isolation, as well as voltage conversion, voltage stabilization and protection; the power module is connected to the power processing circuit, and the supercapacitor group in the power module is composed of supercapacitors and peripheral circuits. Its function is to provide large, short-term, high-current pulses to the coil winding when the coil winding requires a larger current; the battery module in the power module is to store electrical energy, provide the supercapacitor group with energy to generate multiple pulse currents, and provide a stable power reserve for the entire circuit; the coil winding is connected to the power module, and its function is to generate a magnetic field along the radial direction of the steel-core aluminum stranded wire as a magnetic field excitation source by energizing its winding.

[0059] Optionally, Figure 3 This is a structural diagram of an optional inductive power module provided in an embodiment of the present application, such as Figure 3 As shown, Figure 2The physical state of the system is determined by the inductive power supply module, which consists of an electromagnetic ring and a secondary winding. One or more electromagnetic ring secondary windings are set in series on the steel-core aluminum stranded wire. When an AC current passes through the steel-core aluminum stranded wire, an induced voltage is generated on the electromagnetic ring secondary winding, and the battery module is charged through the rectification and voltage regulation circuit of the power supply module. The above-mentioned inductive power supply module is set up to obtain stable output energy on the steel-core aluminum stranded wire by inductive power supply of the electromagnetic ring, so as to supply the entire system. As long as there is current passing through the steel-core aluminum stranded wire, power can be drawn. Therefore, the system can be deployed on the steel-core aluminum stranded wire for a long time to detect the physical state of the steel core.

[0060] As an optional embodiment, the signal acquisition and processing component includes: a magnetic induction sensor device and a circuit processing and acquisition module, wherein the magnetic induction sensor device is used to obtain the second magnetic induction intensity; the circuit processing and acquisition module is connected to the magnetic induction sensor device and is used to determine the physical state of the steel core based on the second magnetic induction intensity and the first magnetic induction intensity.

[0061] It is understood that the signal acquisition and processing component may include, but is not limited to, a magnetic induction sensor device and a circuit processing and acquisition module. The magnetic induction sensor device is used to measure the change in the first magnetic induction intensity generated by the coil winding after passing through the steel-core aluminum stranded wire, that is, the second magnetic induction intensity. The circuit processing and acquisition module is connected to the magnetic induction sensor device and determines the physical state of the steel core through data analysis and processing based on the second magnetic induction intensity measured by the magnetic induction sensor device and the first magnetic induction intensity generated by the coil winding. The signal acquisition and processing component achieves high-precision, non-contact detection of the physical state of the steel core in the steel-core aluminum stranded wire through the efficient collaboration of the magnetic induction sensor device and the circuit processing and acquisition module, providing a scientific basis for the maintenance of the power system, thereby improving the reliability and safety of the operation of power facilities.

[0062] Optionally, for Figure 2The signal acquisition and processing components of the conductor physical state determination system shown in the figure include one or more magnetic induction sensors arranged radially along the steel-core aluminum stranded conductor being tested, a circuit processing and acquisition module, and a wireless module. The magnetic induction sensors measure the magnetic signal (i.e., the second magnetic induction intensity) generated by the pulsed magnetic field signal (i.e., the magnetic field excitation source) generated by the coil winding after it passes through the target conductor and convert it into an electrical signal. The magnetic induction sensors are arranged radially along the steel-core aluminum stranded conductor being tested. Because their signal response is directional, they detect the magnetic field along the radial direction of the steel-core aluminum stranded conductor being tested. Multiple magnetic induction devices can be provided to achieve higher resolution and eliminate external magnetic field interference. The circuit processing and acquisition module is connected to the magnetic induction sensors and collects and processes the electrical signals output by the magnetic induction devices into measurement results (i.e., the results of determining the physical state of the steel core), calculates them, and transmits them to the wireless module. The wireless module is connected to the circuit processing and acquisition module and transmits information, including the steel core physical state detection results, to a receiving platform via a wireless transmission protocol.

[0063] Optionally, Figure 4 This is a schematic diagram of an optional principle for determining the physical state of a wire according to an embodiment of the present application, such as Figure 4 As shown, the coil winding is arranged on one side of the steel core aluminum stranded wire in the radial direction, and the magnetic induction device (ie, the magnetic induction sensor device) is arranged on the other side of the steel core aluminum stranded wire and in the coaxial direction of the coil winding. Figure 4 The left image shows the direction and distribution of the magnetic flux lines generated by the coil windings when there is no steel-core aluminum stranded wire. The right image shows the direction and distribution of the magnetic flux lines generated by the coil windings when there is steel-core aluminum stranded wire. When the steel core of the steel-core aluminum stranded wire needs to be inspected, the battery module of the power supply module charges the supercapacitor bank within it. The supercapacitor bank generates a short, high-current pulse, which in turn generates a magnetic field excitation source through the coil windings. A magnetic induction sensor device located on the other side of the conductor detects the secondary magnetic flux density in the radial direction of the steel-core aluminum stranded wire and converts it into an electrical signal.

[0064] In an embodiment of the present application, a system for determining the physical state of a conductor is provided. A magnetic field excitation power supply component 202 is used to obtain a first magnetic induction intensity generated by a coil winding. A signal acquisition and processing component 204, connected to the magnetic field excitation power supply component 202, is used to obtain a second magnetic induction intensity detected by a magnetic induction sensor device. The physical state of a steel core included in a target conductor is determined based on the first and second magnetic induction intensities. The coil winding and the magnetic induction sensor device are respectively disposed on either side of the target conductor along a radial direction, where the radial direction is the direction of a diameter of a cross section of the target conductor. The physical state is used to measure the degree of deformation of the steel core. By disposing the coil winding and the magnetic induction sensor device on either side of the conductor in the radial direction, and determining the physical state of the steel core included in the conductor based on the first magnetic induction intensity generated by the coil winding and the second magnetic induction intensity measured by the magnetic induction sensor device, the system achieves the technical effect of improving the accuracy of the results of determining the physical state of the steel core in the conductor, thereby resolving the technical problem of poor accuracy in determining the physical state of the steel core in the conductor in the related art.

[0065] Based on the above embodiments and optional embodiments, the present application proposes an optional implementation method for determining the physical state of a conductor, and proposes an optional implementation system for determining the physical state of a conductor, which is used to perform real-time and accurate detection of the physical state of the steel core of the steel-core aluminum stranded wire.

[0066] A magnetic field excitation source is generated by setting a coil winding on one side of the steel-core aluminum stranded wire conductor in the transmission line, and then a magnetic induction sensor device is set on the other side of the steel-core aluminum stranded wire, coaxially with the coil winding. The coil winding is set in the radial direction of the steel-core aluminum stranded wire, so that the direction of the magnetic flux lines it generates is perpendicular to the direction of the magnetic flux lines generated by the current in the steel-core aluminum stranded wire. When current passes through the coil winding, the coil winding generates an excitation magnetic field and magnetizes the steel core longitudinally. When the physical properties of the steel-core aluminum stranded wire change, such as when the steel core has broken strands, pores or corrosion, the physical state of the steel core, such as the cross-sectional area and shape, will change, which in turn causes the leakage magnetic field generated to change compared to when the physical state of the steel core is normal. The magnetic induction sensor device can detect the above magnetic signal and convert it into an electrical signal, thereby inferring the change in the physical state of the steel core in the steel-core aluminum stranded wire.

[0067] The size of the magnetic field excitation source generated by the coil winding through energization is controlled by controlling the number of turns of the coil winding and the size of the current passing through the coil winding.

[0068] By placing a coil winding on one side of the steel-core aluminum stranded wire and a magnetic induction sensor on the other side—that is, placing the magnetic induction sensor opposite the coil winding—the magnetic induction sensor responds to the magnetic field generated by the coil winding current. The magnetic induction sensor is arranged radially in the steel-core aluminum stranded wire, perpendicular to the magnetic flux lines of the current flowing through the steel-core aluminum stranded wire. Therefore, the magnetic field generated by the current in the steel-core aluminum stranded wire is not responded to by the magnetic induction sensor.

[0069] A magnetic induction sensor is a device that converts a measured magnetic signal into an electrical signal. By utilizing the transformation relationship between magnetic quantities and other physical quantities, and using the magnetic field as a medium, the physical quantity signal is converted into an electrical signal. Types of magnetic induction sensors include Hall sensors, tunnel magnetoresistance (TMR) sensors, giant magnetoresistance (GMR) sensors, anisotropic magnetoresistance (AMR) sensors, and other magnetic induction devices that respond to magnetic fields in a directionally sensitive manner and convert magnetic signals into electrical signals.

[0070] For Figure 2The conductor physical state determination system shown includes a magnetic field excitation power supply component and a signal acquisition and processing component. The magnetic field excitation power supply component includes coil windings, a power supply module (including a supercapacitor and battery module), a power processing circuit, and an inductive power supply module consisting of a power supply core and a secondary winding. The inductive power module is used to inductively draw power from the steel-core aluminum stranded wire (i.e., the target conductor) through its power core, outputting AC induced power. The power processing circuit, connected to the inductive power module, converts the AC induced power into DC power usable by the system, providing safety and noise isolation, as well as voltage conversion, voltage stabilization, and protection. The power module, connected to the power processing circuit, contains a supercapacitor bank composed of supercapacitors and peripheral circuits. Its function is to provide large, short-term, high-current pulses to the coil winding when a large current is required. The battery module in the power module stores electrical energy, providing the supercapacitor bank with energy to generate multiple pulse currents and providing a stable power reserve for the entire circuit. The coil winding, connected to the power module, generates a magnetic field along the radial direction of the steel-core aluminum stranded wire by applying power to its windings, serving as a magnetic field excitation source. The signal acquisition and processing component includes one or more magnetic induction sensors arranged radially along the steel-core aluminum stranded wire, a circuit processing and acquisition module, and a wireless module. The function of the magnetic induction sensor device is to measure the magnetic signal (i.e., the second magnetic induction intensity) after the pulsed magnetic field signal (i.e., the magnetic field excitation source) generated by the coil winding passes through the target conductor, and convert it into an electrical signal. The magnetic induction sensor device is arranged along the radial direction of the steel-core aluminum stranded wire being measured. Since its signal response is directional, it detects the magnetic field along the radial direction of the steel-core aluminum stranded wire being measured. Multiple magnetic induction devices can be set to achieve higher resolution and eliminate external magnetic field interference. The circuit processing and acquisition module is connected to the magnetic induction sensor device. Its function is to collect and process the electrical signal output by the magnetic induction device into a measurement result (i.e., the result of determining the physical state of the steel core), calculate it, and send it to the wireless module. The wireless module is connected to the circuit processing and acquisition module. Its function is to send information such as the physical state detection results of the steel core to the receiving platform via a wireless transmission protocol.

[0071] The above optional implementation methods can at least achieve the following effects: by obtaining the first magnetic induction intensity generated by the coil winding, a quantitative data basis can be provided for subsequent comparison and analysis, making the physical condition assessment of the steel core more scientific and accurate; the non-contact design of the coil winding and the conductor ensures that the detection process will not interfere with the normal operation of the conductor, thereby improving the detection efficiency and safety; the steel core physical condition detection system based on the coil winding and the magnetic induction sensor device can be deployed on the target conductor for a long time to achieve real-time and continuous data acquisition and transmission, providing timely and accurate information support for the health management and fault warning of the target conductor; by quantitatively analyzing the differences in magnetic field responses, an accurate assessment of the physical condition of the steel core can be achieved, and invisible damage can be converted into a specific deformation degree value, providing a scientific basis for conductor maintenance.

[0072] An embodiment of the present application provides a non-volatile storage medium having a program stored thereon, which implements a method for determining the physical state of a wire when the program is executed by a processor.

[0073] An embodiment of the present application provides an electronic device comprising a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: obtaining a first magnetic induction intensity generated by a coil winding; obtaining a second magnetic induction intensity detected by a magnetic induction sensor device, wherein the coil winding and the magnetic induction sensor device are respectively disposed on opposite sides of the target conductor along a radial direction of the target conductor, where the radial direction is the direction of a diameter of the same cross-section of the target conductor; and determining a physical state of a steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the physical state is used to measure the degree of deformation of the steel core. The device herein may be a server, a PC, or the like.

[0074] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that is initialized with the following method steps: obtaining a first magnetic induction intensity generated by a coil winding; obtaining a second magnetic induction intensity detected by a magnetic induction sensor device, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target conductor along a radial direction of the target conductor, and the radial direction is the direction of a diameter of the same cross-section of the target conductor; and determining a physical state of a steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the physical state is used to measure the degree of deformation of the steel core.

[0075] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0076] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0077] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0078] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0079] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0080] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0081] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0082] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0083] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0084] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A method for determining the physical state of a conductor, characterized in that: include: Obtaining a first magnetic induction intensity generated by the coil winding; acquiring a second magnetic induction intensity detected by the magnetic induction sensor device, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target wire along a radial direction of the target wire, and the radial direction is a direction of a diameter of a same cross section of the target wire; A physical state of a steel core included in the target conductor is determined based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the physical state is used to measure a degree of deformation of the steel core.

2. The method according to claim 1, characterized in that The obtaining of the first magnetic induction intensity generated by the coil winding includes: determining a current value of the current flowing through the coil winding and the number of turns of the coil winding; The first magnetic induction intensity is determined based on the number of turns and the current value.

3. The method according to claim 1 or 2, characterized in that The determining the physical state of the steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity includes: performing correction processing on the second magnetic induction intensity to obtain a corrected magnetic induction intensity; determining an actual magnetic induction change based on the first magnetic induction intensity and the corrected magnetic induction intensity; The physical state is determined based on the actual magnetic induction variation and a standard magnetic induction variation of the target conductor, wherein the standard magnetic induction variation is measured when the steel core is in a predetermined state.

4. The method according to claim 3, characterized in that The determining the physical state based on the actual magnetic induction variation and the standard magnetic induction variation of the target conductor includes: determining a magnetic induction error based on the actual magnetic induction variation and the standard magnetic induction variation; The physical state is determined based on the magnetic induction error and a predetermined error threshold.

5. The method according to claim 4, characterized in that The determining the physical state based on the magnetic induction error and a predetermined error threshold comprises: When the magnetic induction error is less than the error threshold, determining that the physical state is that the degree of deformation of the steel core is slight deformation; or When the magnetic induction error is greater than or equal to the error threshold, it is determined that the physical state is that the degree of deformation of the steel core is severe deformation.

6. The method according to claim 3, characterized in that The correcting the second magnetic induction intensity to obtain a corrected magnetic induction intensity includes: Determining environmental data of an area where the target wire is located and a sensor drift of the magnetic induction sensor device, wherein the sensor drift is used to describe a measurement error caused by aging of the magnetic induction sensor device; Based on the environmental data and the sensor drift, the second magnetic induction intensity is corrected to obtain the corrected magnetic induction intensity.

7. A system for determining the physical state of a conductor, characterized in that: include: Magnetic field excitation power supply components and signal acquisition and processing components, among which, The magnetic field excitation power supply component is used to obtain a first magnetic induction intensity generated by the coil winding; The signal acquisition and processing component is connected to the magnetic field excitation power supply component, and is used to obtain a second magnetic induction intensity detected by the magnetic induction sensor device, and determine the physical state of the steel core included in the target conductor based on the first magnetic induction intensity and the second magnetic induction intensity, wherein the coil winding and the magnetic induction sensor device are respectively arranged on both sides of the target conductor along the radial direction of the target conductor, and the radial direction is the direction of a diameter of the same cross-section of the target conductor. The physical state is used to measure the degree of deformation of the steel core.

8. The system according to claim 7, characterized in that The magnetic field excitation power supply component includes: the coil winding, the power supply module, and the induction power module, wherein: The induction power acquisition module is used to obtain current from the target wire by induction power acquisition; The power supply module is connected to the inductive power acquisition module and is used to store the current acquired by the power acquisition module; The coil winding is connected to the power module and is used to generate the first magnetic induction intensity based on the current stored in the power module.

9. The system according to claim 7, wherein: The signal acquisition and processing component includes: a magnetic induction sensor device, a circuit processing and acquisition module, wherein: The magnetic induction sensor device is used to obtain the second magnetic induction intensity; The circuit processing and acquisition module is connected to the magnetic induction sensor device, and is used to determine the physical state of the steel core based on the second magnetic induction intensity and the first magnetic induction intensity.

10. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a plurality of instructions, wherein the instructions are suitable for being loaded by a processor and executed by the method for determining the physical state of a wire according to any one of claims 1 to 6.

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